diff options
Diffstat (limited to 'tools/perf')
205 files changed, 8144 insertions, 2645 deletions
diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore index 782d86e961b9..717221e98450 100644 --- a/tools/perf/.gitignore +++ b/tools/perf/.gitignore @@ -15,6 +15,7 @@ perf.data perf.data.old output.svg perf-archive +perf-with-kcore tags TAGS cscope* diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt index 4464ad770d51..f6480cbf309b 100644 --- a/tools/perf/Documentation/perf-bench.txt +++ b/tools/perf/Documentation/perf-bench.txt @@ -16,6 +16,10 @@ This 'perf bench' command is a general framework for benchmark suites. COMMON OPTIONS -------------- +-r:: +--repeat=:: +Specify amount of times to repeat the run (default 10). + -f:: --format=:: Specify format style. diff --git a/tools/perf/Documentation/perf-diff.txt b/tools/perf/Documentation/perf-diff.txt index b3b8abae62b8..e463caa3eb49 100644 --- a/tools/perf/Documentation/perf-diff.txt +++ b/tools/perf/Documentation/perf-diff.txt @@ -196,10 +196,10 @@ If specified the 'Weighted diff' column is displayed with value 'd' computed as: - period being the hist entry period value - - WEIGHT-A/WEIGHT-B being user suplied weights in the the '-c' option + - WEIGHT-A/WEIGHT-B being user supplied weights in the the '-c' option behind ':' separator like '-c wdiff:1,2'. - - WIEGHT-A being the weight of the data file - - WIEGHT-B being the weight of the baseline data file + - WEIGHT-A being the weight of the data file + - WEIGHT-B being the weight of the baseline data file SEE ALSO -------- diff --git a/tools/perf/Documentation/perf-inject.txt b/tools/perf/Documentation/perf-inject.txt index a00a34276c54..dc7442cf3d7f 100644 --- a/tools/perf/Documentation/perf-inject.txt +++ b/tools/perf/Documentation/perf-inject.txt @@ -41,6 +41,9 @@ OPTIONS tasks slept. sched_switch contains a callchain where a task slept and sched_stat contains a timeslice how long a task slept. +--kallsyms=<file>:: + kallsyms pathname + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-report[1], linkperf:perf-archive[1] diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt index 52276a6d2b75..6252e776009c 100644 --- a/tools/perf/Documentation/perf-kvm.txt +++ b/tools/perf/Documentation/perf-kvm.txt @@ -51,9 +51,9 @@ There are a couple of variants of perf kvm: 'perf kvm stat <command>' to run a command and gather performance counter statistics. Especially, perf 'kvm stat record/report' generates a statistical analysis - of KVM events. Currently, vmexit, mmio and ioport events are supported. - 'perf kvm stat record <command>' records kvm events and the events between - start and end <command>. + of KVM events. Currently, vmexit, mmio (x86 only) and ioport (x86 only) + events are supported. 'perf kvm stat record <command>' records kvm events + and the events between start and end <command>. And this command produces a file which contains tracing results of kvm events. @@ -100,11 +100,11 @@ OPTIONS STAT REPORT OPTIONS ------------------- --vcpu=<value>:: - analyze events which occures on this vcpu. (default: all vcpus) + analyze events which occur on this vcpu. (default: all vcpus) --event=<value>:: - event to be analyzed. Possible values: vmexit, mmio, ioport. - (default: vmexit) + event to be analyzed. Possible values: vmexit, mmio (x86 only), + ioport (x86 only). (default: vmexit) -k:: --key=<value>:: Sorting key. Possible values: sample (default, sort by samples @@ -134,11 +134,12 @@ STAT LIVE OPTIONS Analyze events only for given process ID(s) (comma separated list). --vcpu=<value>:: - analyze events which occures on this vcpu. (default: all vcpus) + analyze events which occur on this vcpu. (default: all vcpus) --event=<value>:: - event to be analyzed. Possible values: vmexit, mmio, ioport. + event to be analyzed. Possible values: vmexit, + mmio (x86 only), ioport (x86 only). (default: vmexit) -k:: @@ -147,7 +148,8 @@ STAT LIVE OPTIONS number), time (sort by average time). --duration=<value>:: - Show events other than HLT that take longer than duration usecs. + Show events other than HLT (x86 only) or Wait state (s390 only) + that take longer than duration usecs. SEE ALSO -------- diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index 6fce6a622206..cbb4f743d921 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -19,7 +19,7 @@ various perf commands with the -e option. EVENT MODIFIERS --------------- -Events can optionally have a modifer by appending a colon and one or +Events can optionally have a modifier by appending a colon and one or more modifiers. Modifiers allow the user to restrict the events to be counted. The following modifiers exist: diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt index 1513935c399b..aaa869be3dc1 100644 --- a/tools/perf/Documentation/perf-probe.txt +++ b/tools/perf/Documentation/perf-probe.txt @@ -104,6 +104,9 @@ OPTIONS Specify path to the executable or shared library file for user space tracing. Can also be used with --funcs option. +--demangle-kernel:: + Demangle kernel symbols. + In absence of -m/-x options, perf probe checks if the first argument after the options is an absolute path name. If its an absolute path, perf probe uses it as a target module/target user space binary to probe. diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index d460049cae8e..398f8d53bd6d 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -146,7 +146,7 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. -N:: --no-buildid-cache:: -Do not update the builid cache. This saves some overhead in situations +Do not update the buildid cache. This saves some overhead in situations where the information in the perf.data file (which includes buildids) is sufficient. diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index d2b59af62bc0..0927bf4e6c2a 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -147,7 +147,7 @@ OPTIONS -w:: --column-widths=<width[,width...]>:: Force each column width to the provided list, for large terminal - readability. + readability. 0 means no limit (default behavior). -t:: --field-separator=:: @@ -276,6 +276,9 @@ OPTIONS Demangle symbol names to human readable form. It's enabled by default, disable with --no-demangle. +--demangle-kernel:: + Demangle kernel symbol names to human readable form (for C++ kernels). + --mem-mode:: Use the data addresses of samples in addition to instruction addresses to build the histograms. To generate meaningful output, the perf.data diff --git a/tools/perf/Documentation/perf-script-perl.txt b/tools/perf/Documentation/perf-script-perl.txt index d00bef231340..dfbb506d2c34 100644 --- a/tools/perf/Documentation/perf-script-perl.txt +++ b/tools/perf/Documentation/perf-script-perl.txt @@ -181,8 +181,8 @@ strings for flag and symbolic fields. These correspond to the strings and values parsed from the 'print fmt' fields of the event format files: - flag_str($event_name, $field_name, $field_value) - returns the string represention corresponding to $field_value for the flag field $field_name of event $event_name - symbol_str($event_name, $field_name, $field_value) - returns the string represention corresponding to $field_value for the symbolic field $field_name of event $event_name + flag_str($event_name, $field_name, $field_value) - returns the string representation corresponding to $field_value for the flag field $field_name of event $event_name + symbol_str($event_name, $field_name, $field_value) - returns the string representation corresponding to $field_value for the symbolic field $field_name of event $event_name Perf::Trace::Context Module ~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/tools/perf/Documentation/perf-script-python.txt b/tools/perf/Documentation/perf-script-python.txt index 9f1f054b8432..54acba221558 100644 --- a/tools/perf/Documentation/perf-script-python.txt +++ b/tools/perf/Documentation/perf-script-python.txt @@ -263,7 +263,7 @@ and having the counts we've tallied as values. The print_syscall_totals() function iterates over the entries in the dictionary and displays a line for each entry containing the syscall -name (the dictonary keys contain the syscall ids, which are passed to +name (the dictionary keys contain the syscall ids, which are passed to the Util function syscall_name(), which translates the raw syscall numbers to the corresponding syscall name strings). The output is displayed after all the events in the trace have been processed, by @@ -576,8 +576,8 @@ strings for flag and symbolic fields. These correspond to the strings and values parsed from the 'print fmt' fields of the event format files: - flag_str(event_name, field_name, field_value) - returns the string represention corresponding to field_value for the flag field field_name of event event_name - symbol_str(event_name, field_name, field_value) - returns the string represention corresponding to field_value for the symbolic field field_name of event event_name + flag_str(event_name, field_name, field_value) - returns the string representation corresponding to field_value for the flag field field_name of event event_name + symbol_str(event_name, field_name, field_value) - returns the string representation corresponding to field_value for the symbolic field field_name of event event_name The *autodict* function returns a special kind of Python dictionary that implements Perl's 'autovivifying' hashes in Python diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 05f9a0a6784c..21494806c0ab 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -115,7 +115,7 @@ OPTIONS -f:: --fields:: Comma separated list of fields to print. Options are: - comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff, srcline. + comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff, srcline, period. Field list can be prepended with the type, trace, sw or hw, to indicate to which event type the field list applies. e.g., -f sw:comm,tid,time,ip,sym and -f trace:time,cpu,trace @@ -140,7 +140,7 @@ OPTIONS "Overriding previous field request for all events." - Alternativey, consider the order: + Alternatively, consider the order: -f comm,tid,time,ip,sym -f trace: diff --git a/tools/perf/Documentation/perf-test.txt b/tools/perf/Documentation/perf-test.txt index d1d3e5121f89..31a5c3ea7f74 100644 --- a/tools/perf/Documentation/perf-test.txt +++ b/tools/perf/Documentation/perf-test.txt @@ -25,7 +25,7 @@ OPTIONS ------- -s:: --skip:: - Tests to skip (comma separater numeric list). + Tests to skip (comma separated numeric list). -v:: --verbose:: diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt index 5e0f986dff38..df98d1c82688 100644 --- a/tools/perf/Documentation/perf-timechart.txt +++ b/tools/perf/Documentation/perf-timechart.txt @@ -15,10 +15,20 @@ DESCRIPTION There are two variants of perf timechart: 'perf timechart record <command>' to record the system level events - of an arbitrary workload. + of an arbitrary workload. By default timechart records only scheduler + and CPU events (task switches, running times, CPU power states, etc), + but it's possible to record IO (disk, network) activity using -I argument. 'perf timechart' to turn a trace into a Scalable Vector Graphics file, - that can be viewed with popular SVG viewers such as 'Inkscape'. + that can be viewed with popular SVG viewers such as 'Inkscape'. Depending + on the events in the perf.data file, timechart will contain scheduler/cpu + events or IO events. + + In IO mode, every bar has two charts: upper and lower. + Upper bar shows incoming events (disk reads, ingress network packets). + Lower bar shows outgoing events (disk writes, egress network packets). + There are also poll bars which show how much time application spent + in poll/epoll/select syscalls. TIMECHART OPTIONS ----------------- @@ -54,6 +64,19 @@ TIMECHART OPTIONS duration or tasks with given name. If number is given it's interpreted as number of nanoseconds. If non-numeric string is given it's interpreted as task name. +--io-skip-eagain:: + Don't draw EAGAIN IO events. +--io-min-time=<nsecs>:: + Draw small events as if they lasted min-time. Useful when you need + to see very small and fast IO. It's possible to specify ms or us + suffix to specify time in milliseconds or microseconds. + Default value is 1ms. +--io-merge-dist=<nsecs>:: + Merge events that are merge-dist nanoseconds apart. + Reduces number of figures on the SVG and makes it more render-friendly. + It's possible to specify ms or us suffix to specify time in + milliseconds or microseconds. + Default value is 1us. RECORD OPTIONS -------------- @@ -63,6 +86,9 @@ RECORD OPTIONS -T:: --tasks-only:: Record only tasks-related events +-I:: +--io-only:: + Record only io-related events -g:: --callchain:: Do call-graph (stack chain/backtrace) recording @@ -87,6 +113,14 @@ Record system-wide timechart: $ perf timechart --highlight gcc +Record system-wide IO events: + + $ perf timechart record -I + + then generate timechart: + + $ perf timechart + SEE ALSO -------- linkperf:perf-record[1] diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index 180ae02137a5..3265b1070518 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -98,6 +98,9 @@ Default is to monitor all CPUS. --hide_user_symbols:: Hide user symbols. +--demangle-kernel:: + Demangle kernel symbols. + -D:: --dump-symtab:: Dump the symbol table used for profiling. @@ -193,6 +196,12 @@ Default is to monitor all CPUS. sum of shown entries will be always 100%. "absolute" means it retains the original value before and after the filter is applied. +-w:: +--column-widths=<width[,width...]>:: + Force each column width to the provided list, for large terminal + readability. 0 means no limit (default behavior). + + INTERACTIVE PROMPTING KEYS -------------------------- diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index fae38d9a44a4..7e1b1f2bb83c 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -20,7 +20,7 @@ scheduling events, etc. This is a live mode tool in addition to working with perf.data files like the other perf tools. Files can be generated using the 'perf record' command but the session needs to include the raw_syscalls events (-e 'raw_syscalls:*'). -Alernatively, the 'perf trace record' can be used as a shortcut to +Alternatively, 'perf trace record' can be used as a shortcut to automatically include the raw_syscalls events when writing events to a file. The following options apply to perf trace; options to perf trace record are @@ -107,6 +107,52 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. Show tool stats such as number of times fd->pathname was discovered thru hooking the open syscall return + vfs_getname or via reading /proc/pid/fd, etc. +-F=[all|min|maj]:: +--pf=[all|min|maj]:: + Trace pagefaults. Optionally, you can specify whether you want minor, + major or all pagefaults. Default value is maj. + +--syscalls:: + Trace system calls. This options is enabled by default. + +PAGEFAULTS +---------- + +When tracing pagefaults, the format of the trace is as follows: + +<min|maj>fault [<ip.symbol>+<ip.offset>] => <addr.dso@addr.offset> (<map type><addr level>). + +- min/maj indicates whether fault event is minor or major; +- ip.symbol shows symbol for instruction pointer (the code that generated the + fault); if no debug symbols available, perf trace will print raw IP; +- addr.dso shows DSO for the faulted address; +- map type is either 'd' for non-executable maps or 'x' for executable maps; +- addr level is either 'k' for kernel dso or '.' for user dso. + +For symbols resolution you may need to install debugging symbols. + +Please be aware that duration is currently always 0 and doesn't reflect actual +time it took for fault to be handled! + +When --verbose specified, perf trace tries to print all available information +for both IP and fault address in the form of dso@symbol+offset. + +EXAMPLES +-------- + +Trace only major pagefaults: + + $ perf trace --no-syscalls -F + +Trace syscalls, major and minor pagefaults: + + $ perf trace -F all + + 1416.547 ( 0.000 ms): python/20235 majfault [CRYPTO_push_info_+0x0] => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0@0x61be0 (x.) + + As you can see, there was major pagefault in python process, from + CRYPTO_push_info_ routine which faulted somewhere in libcrypto.so. + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-script[1] diff --git a/tools/perf/Documentation/perf.txt b/tools/perf/Documentation/perf.txt index 0eeb247dc7d2..d240bb2e5b22 100644 --- a/tools/perf/Documentation/perf.txt +++ b/tools/perf/Documentation/perf.txt @@ -8,7 +8,15 @@ perf - Performance analysis tools for Linux SYNOPSIS -------- [verse] -'perf' [--version] [--help] COMMAND [ARGS] +'perf' [--version] [--help] [OPTIONS] COMMAND [ARGS] + +OPTIONS +------- +--debug:: + Setup debug variable (just verbose for now) in value + range (0, 10). Use like: + --debug verbose # sets verbose = 1 + --debug verbose=2 # sets verbose = 2 DESCRIPTION ----------- diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index 45da209b6ed3..344c4d3d0a4a 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -37,3 +37,6 @@ arch/x86/include/asm/kvm_host.h arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/kvm.h +arch/x86/include/uapi/asm/kvm_perf.h +arch/s390/include/uapi/asm/sie.h +arch/s390/include/uapi/asm/kvm_perf.h diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 9670a16fa577..262916f4a377 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -126,6 +126,7 @@ PYRF_OBJS = SCRIPT_SH = SCRIPT_SH += perf-archive.sh +SCRIPT_SH += perf-with-kcore.sh grep-libs = $(filter -l%,$(1)) strip-libs = $(filter-out -l%,$(1)) @@ -263,6 +264,7 @@ LIB_H += util/xyarray.h LIB_H += util/header.h LIB_H += util/help.h LIB_H += util/session.h +LIB_H += util/ordered-events.h LIB_H += util/strbuf.h LIB_H += util/strlist.h LIB_H += util/strfilter.h @@ -295,11 +297,13 @@ LIB_H += util/intlist.h LIB_H += util/perf_regs.h LIB_H += util/unwind.h LIB_H += util/vdso.h +LIB_H += util/tsc.h LIB_H += ui/helpline.h LIB_H += ui/progress.h LIB_H += ui/util.h LIB_H += ui/ui.h LIB_H += util/data.h +LIB_H += util/kvm-stat.h LIB_OBJS += $(OUTPUT)util/abspath.o LIB_OBJS += $(OUTPUT)util/alias.o @@ -345,6 +349,7 @@ LIB_OBJS += $(OUTPUT)util/machine.o LIB_OBJS += $(OUTPUT)util/map.o LIB_OBJS += $(OUTPUT)util/pstack.o LIB_OBJS += $(OUTPUT)util/session.o +LIB_OBJS += $(OUTPUT)util/ordered-events.o LIB_OBJS += $(OUTPUT)util/comm.o LIB_OBJS += $(OUTPUT)util/thread.o LIB_OBJS += $(OUTPUT)util/thread_map.o @@ -373,6 +378,8 @@ LIB_OBJS += $(OUTPUT)util/stat.o LIB_OBJS += $(OUTPUT)util/record.o LIB_OBJS += $(OUTPUT)util/srcline.o LIB_OBJS += $(OUTPUT)util/data.o +LIB_OBJS += $(OUTPUT)util/tsc.o +LIB_OBJS += $(OUTPUT)util/cloexec.o LIB_OBJS += $(OUTPUT)ui/setup.o LIB_OBJS += $(OUTPUT)ui/helpline.o @@ -395,6 +402,7 @@ LIB_OBJS += $(OUTPUT)tests/perf-record.o LIB_OBJS += $(OUTPUT)tests/rdpmc.o LIB_OBJS += $(OUTPUT)tests/evsel-roundtrip-name.o LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o +LIB_OBJS += $(OUTPUT)tests/fdarray.o LIB_OBJS += $(OUTPUT)tests/pmu.o LIB_OBJS += $(OUTPUT)tests/hists_common.o LIB_OBJS += $(OUTPUT)tests/hists_link.o @@ -419,6 +427,7 @@ endif endif LIB_OBJS += $(OUTPUT)tests/mmap-thread-lookup.o LIB_OBJS += $(OUTPUT)tests/thread-mg-share.o +LIB_OBJS += $(OUTPUT)tests/switch-tracking.o BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o BUILTIN_OBJS += $(OUTPUT)builtin-bench.o @@ -761,7 +770,7 @@ $(LIBTRACEEVENT)-clean: install-traceevent-plugins: $(LIBTRACEEVENT) $(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) install_plugins -LIBAPIKFS_SOURCES = $(wildcard $(LIB_PATH)fs/*.[ch]) +LIBAPIKFS_SOURCES = $(wildcard $(LIB_PATH)fs/*.[ch] $(LIB_PATH)fd/*.[ch]) # if subdir is set, we've been called from above so target has been built # already @@ -871,6 +880,8 @@ install-bin: all install-gtk $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)' $(call QUIET_INSTALL, perf-archive) \ $(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)' + $(call QUIET_INSTALL, perf-with-kcore) \ + $(INSTALL) $(OUTPUT)perf-with-kcore -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)' ifndef NO_LIBPERL $(call QUIET_INSTALL, perl-scripts) \ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'; \ @@ -916,7 +927,7 @@ config-clean: @$(MAKE) -C config/feature-checks clean >/dev/null clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean - $(call QUIET_CLEAN, core-objs) $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS) $(GTK_OBJS) + $(call QUIET_CLEAN, core-objs) $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(OUTPUT)perf.o $(LANG_BINDINGS) $(GTK_OBJS) $(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf $(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS $(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* $(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean diff --git a/tools/perf/arch/arm/tests/dwarf-unwind.c b/tools/perf/arch/arm/tests/dwarf-unwind.c index 9f870d27cb39..62eff847f91c 100644 --- a/tools/perf/arch/arm/tests/dwarf-unwind.c +++ b/tools/perf/arch/arm/tests/dwarf-unwind.c @@ -3,6 +3,7 @@ #include "thread.h" #include "map.h" #include "event.h" +#include "debug.h" #include "tests/tests.h" #define STACK_SIZE 8192 diff --git a/tools/perf/arch/arm/util/unwind-libunwind.c b/tools/perf/arch/arm/util/unwind-libunwind.c index 729ed69a6664..62c397ed3d97 100644 --- a/tools/perf/arch/arm/util/unwind-libunwind.c +++ b/tools/perf/arch/arm/util/unwind-libunwind.c @@ -3,6 +3,7 @@ #include <libunwind.h> #include "perf_regs.h" #include "../../util/unwind.h" +#include "../../util/debug.h" int libunwind__arch_reg_id(int regnum) { diff --git a/tools/perf/arch/arm64/include/perf_regs.h b/tools/perf/arch/arm64/include/perf_regs.h index e9441b9e2a30..1d3f39c3aa56 100644 --- a/tools/perf/arch/arm64/include/perf_regs.h +++ b/tools/perf/arch/arm64/include/perf_regs.h @@ -6,6 +6,8 @@ #include <asm/perf_regs.h> #define PERF_REGS_MASK ((1ULL << PERF_REG_ARM64_MAX) - 1) +#define PERF_REGS_MAX PERF_REG_ARM64_MAX + #define PERF_REG_IP PERF_REG_ARM64_PC #define PERF_REG_SP PERF_REG_ARM64_SP diff --git a/tools/perf/arch/arm64/util/unwind-libunwind.c b/tools/perf/arch/arm64/util/unwind-libunwind.c index 436ee43859dc..a87afa91a99e 100644 --- a/tools/perf/arch/arm64/util/unwind-libunwind.c +++ b/tools/perf/arch/arm64/util/unwind-libunwind.c @@ -3,6 +3,7 @@ #include <libunwind.h> #include "perf_regs.h" #include "../../util/unwind.h" +#include "../../util/debug.h" int libunwind__arch_reg_id(int regnum) { diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c index 42faf369211c..49776f190abf 100644 --- a/tools/perf/arch/common.c +++ b/tools/perf/arch/common.c @@ -12,6 +12,11 @@ const char *const arm_triplets[] = { NULL }; +const char *const arm64_triplets[] = { + "aarch64-linux-android-", + NULL +}; + const char *const powerpc_triplets[] = { "powerpc-unknown-linux-gnu-", "powerpc64-unknown-linux-gnu-", @@ -105,6 +110,8 @@ static const char *normalize_arch(char *arch) return "x86"; if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5)) return "sparc"; + if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64")) + return "arm64"; if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110")) return "arm"; if (!strncmp(arch, "s390", 4)) @@ -159,6 +166,8 @@ static int perf_session_env__lookup_binutils_path(struct perf_session_env *env, if (!strcmp(arch, "arm")) path_list = arm_triplets; + else if (!strcmp(arch, "arm64")) + path_list = arm64_triplets; else if (!strcmp(arch, "powerpc")) path_list = powerpc_triplets; else if (!strcmp(arch, "sh")) diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile index 744e629797be..6f7782bea5dd 100644 --- a/tools/perf/arch/powerpc/Makefile +++ b/tools/perf/arch/powerpc/Makefile @@ -1,5 +1,6 @@ ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/skip-callchain-idx.o endif LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c index 2f7073d107fd..6c1b8a75db09 100644 --- a/tools/perf/arch/powerpc/util/header.c +++ b/tools/perf/arch/powerpc/util/header.c @@ -5,9 +5,7 @@ #include <string.h> #include "../../util/header.h" - -#define __stringify_1(x) #x -#define __stringify(x) __stringify_1(x) +#include "../../util/util.h" #define mfspr(rn) ({unsigned long rval; \ asm volatile("mfspr %0," __stringify(rn) \ diff --git a/tools/perf/arch/powerpc/util/skip-callchain-idx.c b/tools/perf/arch/powerpc/util/skip-callchain-idx.c new file mode 100644 index 000000000000..d73ef8bb08c7 --- /dev/null +++ b/tools/perf/arch/powerpc/util/skip-callchain-idx.c @@ -0,0 +1,267 @@ +/* + * Use DWARF Debug information to skip unnecessary callchain entries. + * + * Copyright (C) 2014 Sukadev Bhattiprolu, IBM Corporation. + * Copyright (C) 2014 Ulrich Weigand, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include <inttypes.h> +#include <dwarf.h> +#include <elfutils/libdwfl.h> + +#include "util/thread.h" +#include "util/callchain.h" +#include "util/debug.h" + +/* + * When saving the callchain on Power, the kernel conservatively saves + * excess entries in the callchain. A few of these entries are needed + * in some cases but not others. If the unnecessary entries are not + * ignored, we end up with duplicate arcs in the call-graphs. Use + * DWARF debug information to skip over any unnecessary callchain + * entries. + * + * See function header for arch_adjust_callchain() below for more details. + * + * The libdwfl code in this file is based on code from elfutils + * (libdwfl/argp-std.c, libdwfl/tests/addrcfi.c, etc). + */ +static char *debuginfo_path; + +static const Dwfl_Callbacks offline_callbacks = { + .debuginfo_path = &debuginfo_path, + .find_debuginfo = dwfl_standard_find_debuginfo, + .section_address = dwfl_offline_section_address, +}; + + +/* + * Use the DWARF expression for the Call-frame-address and determine + * if return address is in LR and if a new frame was allocated. + */ +static int check_return_reg(int ra_regno, Dwarf_Frame *frame) +{ + Dwarf_Op ops_mem[2]; + Dwarf_Op dummy; + Dwarf_Op *ops = &dummy; + size_t nops; + int result; + + result = dwarf_frame_register(frame, ra_regno, ops_mem, &ops, &nops); + if (result < 0) { + pr_debug("dwarf_frame_register() %s\n", dwarf_errmsg(-1)); + return -1; + } + + /* + * Check if return address is on the stack. + */ + if (nops != 0 || ops != NULL) + return 0; + + /* + * Return address is in LR. Check if a frame was allocated + * but not-yet used. + */ + result = dwarf_frame_cfa(frame, &ops, &nops); + if (result < 0) { + pr_debug("dwarf_frame_cfa() returns %d, %s\n", result, + dwarf_errmsg(-1)); + return -1; + } + + /* + * If call frame address is in r1, no new frame was allocated. + */ + if (nops == 1 && ops[0].atom == DW_OP_bregx && ops[0].number == 1 && + ops[0].number2 == 0) + return 1; + + /* + * A new frame was allocated but has not yet been used. + */ + return 2; +} + +/* + * Get the DWARF frame from the .eh_frame section. + */ +static Dwarf_Frame *get_eh_frame(Dwfl_Module *mod, Dwarf_Addr pc) +{ + int result; + Dwarf_Addr bias; + Dwarf_CFI *cfi; + Dwarf_Frame *frame; + + cfi = dwfl_module_eh_cfi(mod, &bias); + if (!cfi) { + pr_debug("%s(): no CFI - %s\n", __func__, dwfl_errmsg(-1)); + return NULL; + } + + result = dwarf_cfi_addrframe(cfi, pc, &frame); + if (result) { + pr_debug("%s(): %s\n", __func__, dwfl_errmsg(-1)); + return NULL; + } + + return frame; +} + +/* + * Get the DWARF frame from the .debug_frame section. + */ +static Dwarf_Frame *get_dwarf_frame(Dwfl_Module *mod, Dwarf_Addr pc) +{ + Dwarf_CFI *cfi; + Dwarf_Addr bias; + Dwarf_Frame *frame; + int result; + + cfi = dwfl_module_dwarf_cfi(mod, &bias); + if (!cfi) { + pr_debug("%s(): no CFI - %s\n", __func__, dwfl_errmsg(-1)); + return NULL; + } + + result = dwarf_cfi_addrframe(cfi, pc, &frame); + if (result) { + pr_debug("%s(): %s\n", __func__, dwfl_errmsg(-1)); + return NULL; + } + + return frame; +} + +/* + * Return: + * 0 if return address for the program counter @pc is on stack + * 1 if return address is in LR and no new stack frame was allocated + * 2 if return address is in LR and a new frame was allocated (but not + * yet used) + * -1 in case of errors + */ +static int check_return_addr(const char *exec_file, Dwarf_Addr pc) +{ + int rc = -1; + Dwfl *dwfl; + Dwfl_Module *mod; + Dwarf_Frame *frame; + int ra_regno; + Dwarf_Addr start = pc; + Dwarf_Addr end = pc; + bool signalp; + + dwfl = dwfl_begin(&offline_callbacks); + if (!dwfl) { + pr_debug("dwfl_begin() failed: %s\n", dwarf_errmsg(-1)); + return -1; + } + + if (dwfl_report_offline(dwfl, "", exec_file, -1) == NULL) { + pr_debug("dwfl_report_offline() failed %s\n", dwarf_errmsg(-1)); + goto out; + } + + mod = dwfl_addrmodule(dwfl, pc); + if (!mod) { + pr_debug("dwfl_addrmodule() failed, %s\n", dwarf_errmsg(-1)); + goto out; + } + + /* + * To work with split debug info files (eg: glibc), check both + * .eh_frame and .debug_frame sections of the ELF header. + */ + frame = get_eh_frame(mod, pc); + if (!frame) { + frame = get_dwarf_frame(mod, pc); + if (!frame) + goto out; + } + + ra_regno = dwarf_frame_info(frame, &start, &end, &signalp); + if (ra_regno < 0) { + pr_debug("Return address register unavailable: %s\n", + dwarf_errmsg(-1)); + goto out; + } + + rc = check_return_reg(ra_regno, frame); + +out: + dwfl_end(dwfl); + return rc; +} + +/* + * The callchain saved by the kernel always includes the link register (LR). + * + * 0: PERF_CONTEXT_USER + * 1: Program counter (Next instruction pointer) + * 2: LR value + * 3: Caller's caller + * 4: ... + * + * The value in LR is only needed when it holds a return address. If the + * return address is on the stack, we should ignore the LR value. + * + * Further, when the return address is in the LR, if a new frame was just + * allocated but the LR was not saved into it, then the LR contains the + * caller, slot 4: contains the caller's caller and the contents of slot 3: + * (chain->ips[3]) is undefined and must be ignored. + * + * Use DWARF debug information to determine if any entries need to be skipped. + * + * Return: + * index: of callchain entry that needs to be ignored (if any) + * -1 if no entry needs to be ignored or in case of errors + */ +int arch_skip_callchain_idx(struct machine *machine, struct thread *thread, + struct ip_callchain *chain) +{ + struct addr_location al; + struct dso *dso = NULL; + int rc; + u64 ip; + u64 skip_slot = -1; + + if (chain->nr < 3) + return skip_slot; + + ip = chain->ips[2]; + + thread__find_addr_location(thread, machine, PERF_RECORD_MISC_USER, + MAP__FUNCTION, ip, &al); + + if (al.map) + dso = al.map->dso; + + if (!dso) { + pr_debug("%" PRIx64 " dso is NULL\n", ip); + return skip_slot; + } + + rc = check_return_addr(dso->long_name, ip); + + pr_debug("DSO %s, nr %" PRIx64 ", ip 0x%" PRIx64 "rc %d\n", + dso->long_name, chain->nr, ip, rc); + + if (rc == 0) { + /* + * Return address on stack. Ignore LR value in callchain + */ + skip_slot = 2; + } else if (rc == 2) { + /* + * New frame allocated but return address still in LR. + * Ignore the caller's caller entry in callchain. + */ + skip_slot = 3; + } + return skip_slot; +} diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile index 15130b50dfe3..798ac7379c5f 100644 --- a/tools/perf/arch/s390/Makefile +++ b/tools/perf/arch/s390/Makefile @@ -2,3 +2,6 @@ ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o endif +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o +HAVE_KVM_STAT_SUPPORT := 1 +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/kvm-stat.o diff --git a/tools/perf/arch/s390/util/header.c b/tools/perf/arch/s390/util/header.c new file mode 100644 index 000000000000..9fa6c3e5782c --- /dev/null +++ b/tools/perf/arch/s390/util/header.c @@ -0,0 +1,28 @@ +/* + * Implementation of get_cpuid(). + * + * Copyright 2014 IBM Corp. + * Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + */ + +#include <sys/types.h> +#include <unistd.h> +#include <stdio.h> +#include <string.h> + +#include "../../util/header.h" + +int get_cpuid(char *buffer, size_t sz) +{ + const char *cpuid = "IBM/S390"; + + if (strlen(cpuid) + 1 > sz) + return -1; + + strcpy(buffer, cpuid); + return 0; +} diff --git a/tools/perf/arch/s390/util/kvm-stat.c b/tools/perf/arch/s390/util/kvm-stat.c new file mode 100644 index 000000000000..a5dbc07ec9dc --- /dev/null +++ b/tools/perf/arch/s390/util/kvm-stat.c @@ -0,0 +1,105 @@ +/* + * Arch specific functions for perf kvm stat. + * + * Copyright 2014 IBM Corp. + * Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + */ + +#include "../../util/kvm-stat.h" +#include <asm/kvm_perf.h> + +define_exit_reasons_table(sie_exit_reasons, sie_intercept_code); +define_exit_reasons_table(sie_icpt_insn_codes, icpt_insn_codes); +define_exit_reasons_table(sie_sigp_order_codes, sigp_order_codes); +define_exit_reasons_table(sie_diagnose_codes, diagnose_codes); +define_exit_reasons_table(sie_icpt_prog_codes, icpt_prog_codes); + +static void event_icpt_insn_get_key(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) +{ + unsigned long insn; + + insn = perf_evsel__intval(evsel, sample, "instruction"); + key->key = icpt_insn_decoder(insn); + key->exit_reasons = sie_icpt_insn_codes; +} + +static void event_sigp_get_key(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) +{ + key->key = perf_evsel__intval(evsel, sample, "order_code"); + key->exit_reasons = sie_sigp_order_codes; +} + +static void event_diag_get_key(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) +{ + key->key = perf_evsel__intval(evsel, sample, "code"); + key->exit_reasons = sie_diagnose_codes; +} + +static void event_icpt_prog_get_key(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) +{ + key->key = perf_evsel__intval(evsel, sample, "code"); + key->exit_reasons = sie_icpt_prog_codes; +} + +static struct child_event_ops child_events[] = { + { .name = "kvm:kvm_s390_intercept_instruction", + .get_key = event_icpt_insn_get_key }, + { .name = "kvm:kvm_s390_handle_sigp", + .get_key = event_sigp_get_key }, + { .name = "kvm:kvm_s390_handle_diag", + .get_key = event_diag_get_key }, + { .name = "kvm:kvm_s390_intercept_prog", + .get_key = event_icpt_prog_get_key }, + { NULL, NULL }, +}; + +static struct kvm_events_ops exit_events = { + .is_begin_event = exit_event_begin, + .is_end_event = exit_event_end, + .child_ops = child_events, + .decode_key = exit_event_decode_key, + .name = "VM-EXIT" +}; + +const char * const kvm_events_tp[] = { + "kvm:kvm_s390_sie_enter", + "kvm:kvm_s390_sie_exit", + "kvm:kvm_s390_intercept_instruction", + "kvm:kvm_s390_handle_sigp", + "kvm:kvm_s390_handle_diag", + "kvm:kvm_s390_intercept_prog", + NULL, +}; + +struct kvm_reg_events_ops kvm_reg_events_ops[] = { + { .name = "vmexit", .ops = &exit_events }, + { NULL, NULL }, +}; + +const char * const kvm_skip_events[] = { + "Wait state", + NULL, +}; + +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid) +{ + if (strstr(cpuid, "IBM/S390")) { + kvm->exit_reasons = sie_exit_reasons; + kvm->exit_reasons_isa = "SIE"; + } else + return -ENOTSUP; + + return 0; +} diff --git a/tools/perf/arch/x86/Makefile b/tools/perf/arch/x86/Makefile index 1641542e3636..9b21881db52f 100644 --- a/tools/perf/arch/x86/Makefile +++ b/tools/perf/arch/x86/Makefile @@ -15,3 +15,5 @@ endif LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/tsc.o LIB_H += arch/$(ARCH)/util/tsc.h +HAVE_KVM_STAT_SUPPORT := 1 +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/kvm-stat.o diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c index 9f89f899ccc7..d8bbf7ad1681 100644 --- a/tools/perf/arch/x86/tests/dwarf-unwind.c +++ b/tools/perf/arch/x86/tests/dwarf-unwind.c @@ -3,6 +3,7 @@ #include "thread.h" #include "map.h" #include "event.h" +#include "debug.h" #include "tests/tests.h" #define STACK_SIZE 8192 diff --git a/tools/perf/arch/x86/util/kvm-stat.c b/tools/perf/arch/x86/util/kvm-stat.c new file mode 100644 index 000000000000..14e4e668fad7 --- /dev/null +++ b/tools/perf/arch/x86/util/kvm-stat.c @@ -0,0 +1,156 @@ +#include "../../util/kvm-stat.h" +#include <asm/kvm_perf.h> + +define_exit_reasons_table(vmx_exit_reasons, VMX_EXIT_REASONS); +define_exit_reasons_table(svm_exit_reasons, SVM_EXIT_REASONS); + +static struct kvm_events_ops exit_events = { + .is_begin_event = exit_event_begin, + .is_end_event = exit_event_end, + .decode_key = exit_event_decode_key, + .name = "VM-EXIT" +}; + +/* + * For the mmio events, we treat: + * the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry + * the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...). + */ +static void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample, + struct event_key *key) +{ + key->key = perf_evsel__intval(evsel, sample, "gpa"); + key->info = perf_evsel__intval(evsel, sample, "type"); +} + +#define KVM_TRACE_MMIO_READ_UNSATISFIED 0 +#define KVM_TRACE_MMIO_READ 1 +#define KVM_TRACE_MMIO_WRITE 2 + +static bool mmio_event_begin(struct perf_evsel *evsel, + struct perf_sample *sample, struct event_key *key) +{ + /* MMIO read begin event in kernel. */ + if (kvm_exit_event(evsel)) + return true; + + /* MMIO write begin event in kernel. */ + if (!strcmp(evsel->name, "kvm:kvm_mmio") && + perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_WRITE) { + mmio_event_get_key(evsel, sample, key); + return true; + } + + return false; +} + +static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample, + struct event_key *key) +{ + /* MMIO write end event in kernel. */ + if (kvm_entry_event(evsel)) + return true; + + /* MMIO read end event in kernel.*/ + if (!strcmp(evsel->name, "kvm:kvm_mmio") && + perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_READ) { + mmio_event_get_key(evsel, sample, key); + return true; + } + + return false; +} + +static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, + struct event_key *key, + char *decode) +{ + scnprintf(decode, DECODE_STR_LEN, "%#lx:%s", + (unsigned long)key->key, + key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R"); +} + +static struct kvm_events_ops mmio_events = { + .is_begin_event = mmio_event_begin, + .is_end_event = mmio_event_end, + .decode_key = mmio_event_decode_key, + .name = "MMIO Access" +}; + + /* The time of emulation pio access is from kvm_pio to kvm_entry. */ +static void ioport_event_get_key(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) +{ + key->key = perf_evsel__intval(evsel, sample, "port"); + key->info = perf_evsel__intval(evsel, sample, "rw"); +} + +static bool ioport_event_begin(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) +{ + if (!strcmp(evsel->name, "kvm:kvm_pio")) { + ioport_event_get_key(evsel, sample, key); + return true; + } + + return false; +} + +static bool ioport_event_end(struct perf_evsel *evsel, + struct perf_sample *sample __maybe_unused, + struct event_key *key __maybe_unused) +{ + return kvm_entry_event(evsel); +} + +static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, + struct event_key *key, + char *decode) +{ + scnprintf(decode, DECODE_STR_LEN, "%#llx:%s", + (unsigned long long)key->key, + key->info ? "POUT" : "PIN"); +} + +static struct kvm_events_ops ioport_events = { + .is_begin_event = ioport_event_begin, + .is_end_event = ioport_event_end, + .decode_key = ioport_event_decode_key, + .name = "IO Port Access" +}; + +const char * const kvm_events_tp[] = { + "kvm:kvm_entry", + "kvm:kvm_exit", + "kvm:kvm_mmio", + "kvm:kvm_pio", + NULL, +}; + +struct kvm_reg_events_ops kvm_reg_events_ops[] = { + { .name = "vmexit", .ops = &exit_events }, + { .name = "mmio", .ops = &mmio_events }, + { .name = "ioport", .ops = &ioport_events }, + { NULL, NULL }, +}; + +const char * const kvm_skip_events[] = { + "HLT", + NULL, +}; + +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid) +{ + if (strstr(cpuid, "Intel")) { + kvm->exit_reasons = vmx_exit_reasons; + kvm->exit_reasons_isa = "VMX"; + } else if (strstr(cpuid, "AMD")) { + kvm->exit_reasons = svm_exit_reasons; + kvm->exit_reasons_isa = "SVM"; + } else + return -ENOTSUP; + + return 0; +} diff --git a/tools/perf/arch/x86/util/tsc.c b/tools/perf/arch/x86/util/tsc.c index 40021fa3129b..fd2868490d00 100644 --- a/tools/perf/arch/x86/util/tsc.c +++ b/tools/perf/arch/x86/util/tsc.c @@ -6,29 +6,9 @@ #include "../../perf.h" #include <linux/types.h> #include "../../util/debug.h" +#include "../../util/tsc.h" #include "tsc.h" -u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc) -{ - u64 t, quot, rem; - - t = ns - tc->time_zero; - quot = t / tc->time_mult; - rem = t % tc->time_mult; - return (quot << tc->time_shift) + - (rem << tc->time_shift) / tc->time_mult; -} - -u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc) -{ - u64 quot, rem; - - quot = cyc >> tc->time_shift; - rem = cyc & ((1 << tc->time_shift) - 1); - return tc->time_zero + quot * tc->time_mult + - ((rem * tc->time_mult) >> tc->time_shift); -} - int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc, struct perf_tsc_conversion *tc) { @@ -57,3 +37,12 @@ int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc, return 0; } + +u64 rdtsc(void) +{ + unsigned int low, high; + + asm volatile("rdtsc" : "=a" (low), "=d" (high)); + + return low | ((u64)high) << 32; +} diff --git a/tools/perf/arch/x86/util/tsc.h b/tools/perf/arch/x86/util/tsc.h index 2affe0366b59..2edc4d31065c 100644 --- a/tools/perf/arch/x86/util/tsc.h +++ b/tools/perf/arch/x86/util/tsc.h @@ -14,7 +14,4 @@ struct perf_event_mmap_page; int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc, struct perf_tsc_conversion *tc); -u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc); -u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc); - #endif /* TOOLS_PERF_ARCH_X86_UTIL_TSC_H__ */ diff --git a/tools/perf/arch/x86/util/unwind-libunwind.c b/tools/perf/arch/x86/util/unwind-libunwind.c index 3261f68c6a7c..db25e93d989c 100644 --- a/tools/perf/arch/x86/util/unwind-libunwind.c +++ b/tools/perf/arch/x86/util/unwind-libunwind.c @@ -3,6 +3,7 @@ #include <libunwind.h> #include "perf_regs.h" #include "../../util/unwind.h" +#include "../../util/debug.h" #ifdef HAVE_ARCH_X86_64_SUPPORT int libunwind__arch_reg_id(int regnum) diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h index eba46709b279..3c4dd44d45cb 100644 --- a/tools/perf/bench/bench.h +++ b/tools/perf/bench/bench.h @@ -43,5 +43,6 @@ extern int bench_futex_requeue(int argc, const char **argv, const char *prefix); #define BENCH_FORMAT_UNKNOWN -1 extern int bench_format; +extern unsigned int bench_repeat; #endif diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c index a84206e9c4aa..fc9bebd2cca0 100644 --- a/tools/perf/bench/futex-hash.c +++ b/tools/perf/bench/futex-hash.c @@ -26,6 +26,7 @@ static unsigned int nsecs = 10; /* amount of futexes per thread */ static unsigned int nfutexes = 1024; static bool fshared = false, done = false, silent = false; +static int futex_flag = 0; struct timeval start, end, runtime; static pthread_mutex_t thread_lock; @@ -75,8 +76,7 @@ static void *workerfn(void *arg) * such as internal waitqueue handling, thus enlarging * the critical region protected by hb->lock. */ - ret = futex_wait(&w->futex[i], 1234, NULL, - fshared ? 0 : FUTEX_PRIVATE_FLAG); + ret = futex_wait(&w->futex[i], 1234, NULL, futex_flag); if (!silent && (!ret || errno != EAGAIN || errno != EWOULDBLOCK)) warn("Non-expected futex return call"); @@ -135,6 +135,9 @@ int bench_futex_hash(int argc, const char **argv, if (!worker) goto errmem; + if (!fshared) + futex_flag = FUTEX_PRIVATE_FLAG; + printf("Run summary [PID %d]: %d threads, each operating on %d [%s] futexes for %d secs.\n\n", getpid(), nthreads, nfutexes, fshared ? "shared":"private", nsecs); diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c index a16255876f1d..bedff6b5b3cf 100644 --- a/tools/perf/bench/futex-requeue.c +++ b/tools/perf/bench/futex-requeue.c @@ -29,25 +29,19 @@ static u_int32_t futex1 = 0, futex2 = 0; */ static unsigned int nrequeue = 1; -/* - * There can be significant variance from run to run, - * the more repeats, the more exact the overall avg and - * the better idea of the futex latency. - */ -static unsigned int repeat = 10; - static pthread_t *worker; -static bool done = 0, silent = 0; +static bool done = false, silent = false, fshared = false; static pthread_mutex_t thread_lock; static pthread_cond_t thread_parent, thread_worker; static struct stats requeuetime_stats, requeued_stats; static unsigned int ncpus, threads_starting, nthreads = 0; +static int futex_flag = 0; static const struct option options[] = { OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"), OPT_UINTEGER('q', "nrequeue", &nrequeue, "Specify amount of threads to requeue at once"), - OPT_UINTEGER('r', "repeat", &repeat, "Specify amount of times to repeat the run"), OPT_BOOLEAN( 's', "silent", &silent, "Silent mode: do not display data/details"), + OPT_BOOLEAN( 'S', "shared", &fshared, "Use shared futexes instead of private ones"), OPT_END() }; @@ -78,7 +72,7 @@ static void *workerfn(void *arg __maybe_unused) pthread_cond_wait(&thread_worker, &thread_lock); pthread_mutex_unlock(&thread_lock); - futex_wait(&futex1, 0, NULL, FUTEX_PRIVATE_FLAG); + futex_wait(&futex1, 0, NULL, futex_flag); return NULL; } @@ -135,9 +129,12 @@ int bench_futex_requeue(int argc, const char **argv, if (!worker) err(EXIT_FAILURE, "calloc"); - printf("Run summary [PID %d]: Requeuing %d threads (from %p to %p), " - "%d at a time.\n\n", - getpid(), nthreads, &futex1, &futex2, nrequeue); + if (!fshared) + futex_flag = FUTEX_PRIVATE_FLAG; + + printf("Run summary [PID %d]: Requeuing %d threads (from [%s] %p to %p), " + "%d at a time.\n\n", getpid(), nthreads, + fshared ? "shared":"private", &futex1, &futex2, nrequeue); init_stats(&requeued_stats); init_stats(&requeuetime_stats); @@ -146,7 +143,7 @@ int bench_futex_requeue(int argc, const char **argv, pthread_cond_init(&thread_parent, NULL); pthread_cond_init(&thread_worker, NULL); - for (j = 0; j < repeat && !done; j++) { + for (j = 0; j < bench_repeat && !done; j++) { unsigned int nrequeued = 0; struct timeval start, end, runtime; @@ -164,16 +161,20 @@ int bench_futex_requeue(int argc, const char **argv, /* Ok, all threads are patiently blocked, start requeueing */ gettimeofday(&start, NULL); - for (nrequeued = 0; nrequeued < nthreads; nrequeued += nrequeue) + for (nrequeued = 0; nrequeued < nthreads; nrequeued += nrequeue) { /* * Do not wakeup any tasks blocked on futex1, allowing * us to really measure futex_wait functionality. */ - futex_cmp_requeue(&futex1, 0, &futex2, 0, nrequeue, - FUTEX_PRIVATE_FLAG); + futex_cmp_requeue(&futex1, 0, &futex2, 0, + nrequeue, futex_flag); + } gettimeofday(&end, NULL); timersub(&end, &start, &runtime); + if (nrequeued > nthreads) + nrequeued = nthreads; + update_stats(&requeued_stats, nrequeued); update_stats(&requeuetime_stats, runtime.tv_usec); @@ -183,7 +184,7 @@ int bench_futex_requeue(int argc, const char **argv, } /* everybody should be blocked on futex2, wake'em up */ - nrequeued = futex_wake(&futex2, nthreads, FUTEX_PRIVATE_FLAG); + nrequeued = futex_wake(&futex2, nthreads, futex_flag); if (nthreads != nrequeued) warnx("couldn't wakeup all tasks (%d/%d)", nrequeued, nthreads); @@ -192,7 +193,6 @@ int bench_futex_requeue(int argc, const char **argv, if (ret) err(EXIT_FAILURE, "pthread_join"); } - } /* cleanup & report results */ diff --git a/tools/perf/bench/futex-wake.c b/tools/perf/bench/futex-wake.c index d096169b161e..929f762be47e 100644 --- a/tools/perf/bench/futex-wake.c +++ b/tools/perf/bench/futex-wake.c @@ -30,25 +30,19 @@ static u_int32_t futex1 = 0; */ static unsigned int nwakes = 1; -/* - * There can be significant variance from run to run, - * the more repeats, the more exact the overall avg and - * the better idea of the futex latency. - */ -static unsigned int repeat = 10; - pthread_t *worker; -static bool done = 0, silent = 0; +static bool done = false, silent = false, fshared = false; static pthread_mutex_t thread_lock; static pthread_cond_t thread_parent, thread_worker; static struct stats waketime_stats, wakeup_stats; static unsigned int ncpus, threads_starting, nthreads = 0; +static int futex_flag = 0; static const struct option options[] = { OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"), OPT_UINTEGER('w', "nwakes", &nwakes, "Specify amount of threads to wake at once"), - OPT_UINTEGER('r', "repeat", &repeat, "Specify amount of times to repeat the run"), OPT_BOOLEAN( 's', "silent", &silent, "Silent mode: do not display data/details"), + OPT_BOOLEAN( 'S', "shared", &fshared, "Use shared futexes instead of private ones"), OPT_END() }; @@ -66,7 +60,7 @@ static void *workerfn(void *arg __maybe_unused) pthread_cond_wait(&thread_worker, &thread_lock); pthread_mutex_unlock(&thread_lock); - futex_wait(&futex1, 0, NULL, FUTEX_PRIVATE_FLAG); + futex_wait(&futex1, 0, NULL, futex_flag); return NULL; } @@ -138,9 +132,12 @@ int bench_futex_wake(int argc, const char **argv, if (!worker) err(EXIT_FAILURE, "calloc"); - printf("Run summary [PID %d]: blocking on %d threads (at futex %p), " + if (!fshared) + futex_flag = FUTEX_PRIVATE_FLAG; + + printf("Run summary [PID %d]: blocking on %d threads (at [%s] futex %p), " "waking up %d at a time.\n\n", - getpid(), nthreads, &futex1, nwakes); + getpid(), nthreads, fshared ? "shared":"private", &futex1, nwakes); init_stats(&wakeup_stats); init_stats(&waketime_stats); @@ -149,7 +146,7 @@ int bench_futex_wake(int argc, const char **argv, pthread_cond_init(&thread_parent, NULL); pthread_cond_init(&thread_worker, NULL); - for (j = 0; j < repeat && !done; j++) { + for (j = 0; j < bench_repeat && !done; j++) { unsigned int nwoken = 0; struct timeval start, end, runtime; @@ -168,7 +165,7 @@ int bench_futex_wake(int argc, const char **argv, /* Ok, all threads are patiently blocked, start waking folks up */ gettimeofday(&start, NULL); while (nwoken != nthreads) - nwoken += futex_wake(&futex1, nwakes, FUTEX_PRIVATE_FLAG); + nwoken += futex_wake(&futex1, nwakes, futex_flag); gettimeofday(&end, NULL); timersub(&end, &start, &runtime); diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c index 5ce71d3b72cf..2465141b554b 100644 --- a/tools/perf/bench/mem-memcpy.c +++ b/tools/perf/bench/mem-memcpy.c @@ -10,6 +10,7 @@ #include "../util/util.h" #include "../util/parse-options.h" #include "../util/header.h" +#include "../util/cloexec.h" #include "bench.h" #include "mem-memcpy-arch.h" @@ -83,7 +84,8 @@ static struct perf_event_attr cycle_attr = { static void init_cycle(void) { - cycle_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, 0); + cycle_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, + perf_event_open_cloexec_flag()); if (cycle_fd < 0 && errno == ENOSYS) die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); @@ -189,6 +191,11 @@ int bench_mem_memcpy(int argc, const char **argv, argc = parse_options(argc, argv, options, bench_mem_memcpy_usage, 0); + if (no_prefault && only_prefault) { + fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n"); + return 1; + } + if (use_cycle) init_cycle(); diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c index 9af79d2b18e5..75fc3e65fb2a 100644 --- a/tools/perf/bench/mem-memset.c +++ b/tools/perf/bench/mem-memset.c @@ -10,6 +10,7 @@ #include "../util/util.h" #include "../util/parse-options.h" #include "../util/header.h" +#include "../util/cloexec.h" #include "bench.h" #include "mem-memset-arch.h" @@ -83,7 +84,8 @@ static struct perf_event_attr cycle_attr = { static void init_cycle(void) { - cycle_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, 0); + cycle_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, + perf_event_open_cloexec_flag()); if (cycle_fd < 0 && errno == ENOSYS) die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); @@ -181,6 +183,11 @@ int bench_mem_memset(int argc, const char **argv, argc = parse_options(argc, argv, options, bench_mem_memset_usage, 0); + if (no_prefault && only_prefault) { + fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n"); + return 1; + } + if (use_cycle) init_cycle(); diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c index cc1190a0849b..d7f281c2828d 100644 --- a/tools/perf/bench/sched-messaging.c +++ b/tools/perf/bench/sched-messaging.c @@ -26,8 +26,9 @@ #include <sys/socket.h> #include <sys/wait.h> #include <sys/time.h> -#include <sys/poll.h> +#include <poll.h> #include <limits.h> +#include <err.h> #define DATASIZE 100 @@ -50,12 +51,6 @@ struct receiver_context { int wakefd; }; -static void barf(const char *msg) -{ - fprintf(stderr, "%s (error: %s)\n", msg, strerror(errno)); - exit(1); -} - static void fdpair(int fds[2]) { if (use_pipes) { @@ -66,7 +61,7 @@ static void fdpair(int fds[2]) return; } - barf(use_pipes ? "pipe()" : "socketpair()"); + err(EXIT_FAILURE, use_pipes ? "pipe()" : "socketpair()"); } /* Block until we're ready to go */ @@ -77,11 +72,11 @@ static void ready(int ready_out, int wakefd) /* Tell them we're ready. */ if (write(ready_out, &dummy, 1) != 1) - barf("CLIENT: ready write"); + err(EXIT_FAILURE, "CLIENT: ready write"); /* Wait for "GO" signal */ if (poll(&pollfd, 1, -1) != 1) - barf("poll"); + err(EXIT_FAILURE, "poll"); } /* Sender sprays loops messages down each file descriptor */ @@ -101,7 +96,7 @@ again: ret = write(ctx->out_fds[j], data + done, sizeof(data)-done); if (ret < 0) - barf("SENDER: write"); + err(EXIT_FAILURE, "SENDER: write"); done += ret; if (done < DATASIZE) goto again; @@ -131,7 +126,7 @@ static void *receiver(struct receiver_context* ctx) again: ret = read(ctx->in_fds[0], data + done, DATASIZE - done); if (ret < 0) - barf("SERVER: read"); + err(EXIT_FAILURE, "SERVER: read"); done += ret; if (done < DATASIZE) goto again; @@ -144,14 +139,14 @@ static pthread_t create_worker(void *ctx, void *(*func)(void *)) { pthread_attr_t attr; pthread_t childid; - int err; + int ret; if (!thread_mode) { /* process mode */ /* Fork the receiver. */ switch (fork()) { case -1: - barf("fork()"); + err(EXIT_FAILURE, "fork()"); break; case 0: (*func) (ctx); @@ -165,19 +160,17 @@ static pthread_t create_worker(void *ctx, void *(*func)(void *)) } if (pthread_attr_init(&attr) != 0) - barf("pthread_attr_init:"); + err(EXIT_FAILURE, "pthread_attr_init:"); #ifndef __ia64__ if (pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN) != 0) - barf("pthread_attr_setstacksize"); + err(EXIT_FAILURE, "pthread_attr_setstacksize"); #endif - err = pthread_create(&childid, &attr, func, ctx); - if (err != 0) { - fprintf(stderr, "pthread_create failed: %s (%d)\n", - strerror(err), err); - exit(-1); - } + ret = pthread_create(&childid, &attr, func, ctx); + if (ret != 0) + err(EXIT_FAILURE, "pthread_create failed"); + return childid; } @@ -207,14 +200,14 @@ static unsigned int group(pthread_t *pth, + num_fds * sizeof(int)); if (!snd_ctx) - barf("malloc()"); + err(EXIT_FAILURE, "malloc()"); for (i = 0; i < num_fds; i++) { int fds[2]; struct receiver_context *ctx = malloc(sizeof(*ctx)); if (!ctx) - barf("malloc()"); + err(EXIT_FAILURE, "malloc()"); /* Create the pipe between client and server */ @@ -281,7 +274,7 @@ int bench_sched_messaging(int argc, const char **argv, pth_tab = malloc(num_fds * 2 * num_groups * sizeof(pthread_t)); if (!pth_tab) - barf("main:malloc()"); + err(EXIT_FAILURE, "main:malloc()"); fdpair(readyfds); fdpair(wakefds); @@ -294,13 +287,13 @@ int bench_sched_messaging(int argc, const char **argv, /* Wait for everyone to be ready */ for (i = 0; i < total_children; i++) if (read(readyfds[0], &dummy, 1) != 1) - barf("Reading for readyfds"); + err(EXIT_FAILURE, "Reading for readyfds"); gettimeofday(&start, NULL); /* Kick them off */ if (write(wakefds[1], &dummy, 1) != 1) - barf("Writing to start them"); + err(EXIT_FAILURE, "Writing to start them"); /* Reap them all */ for (i = 0; i < total_children; i++) @@ -332,5 +325,7 @@ int bench_sched_messaging(int argc, const char **argv, break; } + free(pth_tab); + return 0; } diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 1ec429fef2be..e7417fe97a97 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -36,7 +36,8 @@ struct perf_annotate { struct perf_tool tool; - bool force, use_tui, use_stdio, use_gtk; + struct perf_session *session; + bool use_tui, use_stdio, use_gtk; bool full_paths; bool print_line; bool skip_missing; @@ -50,6 +51,7 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel, struct addr_location *al, struct perf_annotate *ann) { + struct hists *hists = evsel__hists(evsel); struct hist_entry *he; int ret; @@ -65,13 +67,12 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel, return 0; } - he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, 1, 1, 0, - true); + he = __hists__add_entry(hists, al, NULL, NULL, NULL, 1, 1, 0, true); if (he == NULL) return -ENOMEM; ret = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); - hists__inc_nr_samples(&evsel->hists, true); + hists__inc_nr_samples(hists, true); return ret; } @@ -188,18 +189,9 @@ find_next: static int __cmd_annotate(struct perf_annotate *ann) { int ret; - struct perf_session *session; + struct perf_session *session = ann->session; struct perf_evsel *pos; u64 total_nr_samples; - struct perf_data_file file = { - .path = input_name, - .mode = PERF_DATA_MODE_READ, - .force = ann->force, - }; - - session = perf_session__new(&file, false, &ann->tool); - if (session == NULL) - return -ENOMEM; machines__set_symbol_filter(&session->machines, symbol__annotate_init); @@ -207,22 +199,23 @@ static int __cmd_annotate(struct perf_annotate *ann) ret = perf_session__cpu_bitmap(session, ann->cpu_list, ann->cpu_bitmap); if (ret) - goto out_delete; + goto out; } if (!objdump_path) { ret = perf_session_env__lookup_objdump(&session->header.env); if (ret) - goto out_delete; + goto out; } ret = perf_session__process_events(session, &ann->tool); if (ret) - goto out_delete; + goto out; if (dump_trace) { perf_session__fprintf_nr_events(session, stdout); - goto out_delete; + perf_evlist__fprintf_nr_events(session->evlist, stdout); + goto out; } if (verbose > 3) @@ -233,7 +226,7 @@ static int __cmd_annotate(struct perf_annotate *ann) total_nr_samples = 0; evlist__for_each(session->evlist, pos) { - struct hists *hists = &pos->hists; + struct hists *hists = evsel__hists(pos); u32 nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; if (nr_samples > 0) { @@ -250,8 +243,8 @@ static int __cmd_annotate(struct perf_annotate *ann) } if (total_nr_samples == 0) { - ui__error("The %s file has no samples!\n", file.path); - goto out_delete; + ui__error("The %s file has no samples!\n", session->file->path); + goto out; } if (use_browser == 2) { @@ -261,24 +254,12 @@ static int __cmd_annotate(struct perf_annotate *ann) "perf_gtk__show_annotations"); if (show_annotations == NULL) { ui__error("GTK browser not found!\n"); - goto out_delete; + goto out; } show_annotations(); } -out_delete: - /* - * Speed up the exit process, for large files this can - * take quite a while. - * - * XXX Enable this when using valgrind or if we ever - * librarize this command. - * - * Also experiment with obstacks to see how much speed - * up we'll get here. - * - * perf_session__delete(session); - */ +out: return ret; } @@ -297,10 +278,14 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused) .comm = perf_event__process_comm, .exit = perf_event__process_exit, .fork = perf_event__process_fork, - .ordered_samples = true, + .ordered_events = true, .ordering_requires_timestamps = true, }, }; + struct perf_data_file file = { + .path = input_name, + .mode = PERF_DATA_MODE_READ, + }; const struct option options[] = { OPT_STRING('i', "input", &input_name, "file", "input file name"), @@ -308,7 +293,7 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused) "only consider symbols in these dsos"), OPT_STRING('s', "symbol", &annotate.sym_hist_filter, "symbol", "symbol to annotate"), - OPT_BOOLEAN('f', "force", &annotate.force, "don't complain, do it"), + OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), OPT_INCR('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"), OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, @@ -341,6 +326,10 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused) "Show event group information together"), OPT_END() }; + int ret = hists__init(); + + if (ret < 0) + return ret; argc = parse_options(argc, argv, options, annotate_usage, 0); @@ -353,11 +342,16 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused) setup_browser(true); + annotate.session = perf_session__new(&file, false, &annotate.tool); + if (annotate.session == NULL) + return -1; + symbol_conf.priv_size = sizeof(struct annotation); symbol_conf.try_vmlinux_path = true; - if (symbol__init() < 0) - return -1; + ret = symbol__init(&annotate.session->header.env); + if (ret < 0) + goto out_delete; if (setup_sorting() < 0) usage_with_options(annotate_usage, options); @@ -373,5 +367,20 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused) annotate.sym_hist_filter = argv[0]; } - return __cmd_annotate(&annotate); + ret = __cmd_annotate(&annotate); + +out_delete: + /* + * Speed up the exit process, for large files this can + * take quite a while. + * + * XXX Enable this when using valgrind or if we ever + * librarize this command. + * + * Also experiment with obstacks to see how much speed + * up we'll get here. + * + * perf_session__delete(session); + */ + return ret; } diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c index 1e6e77710545..b9a56fa83330 100644 --- a/tools/perf/builtin-bench.c +++ b/tools/perf/builtin-bench.c @@ -104,9 +104,11 @@ static const char *bench_format_str; /* Output/formatting style, exported to benchmark modules: */ int bench_format = BENCH_FORMAT_DEFAULT; +unsigned int bench_repeat = 10; /* default number of times to repeat the run */ static const struct option bench_options[] = { OPT_STRING('f', "format", &bench_format_str, "default", "Specify format style"), + OPT_UINTEGER('r', "repeat", &bench_repeat, "Specify amount of times to repeat the run"), OPT_END() }; @@ -226,6 +228,11 @@ int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused) goto end; } + if (bench_repeat == 0) { + printf("Invalid repeat option: Must specify a positive value\n"); + goto end; + } + if (argc < 1) { print_usage(); goto end; diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c index b22dbb16f877..70385756da63 100644 --- a/tools/perf/builtin-buildid-cache.c +++ b/tools/perf/builtin-buildid-cache.c @@ -125,7 +125,8 @@ static int build_id_cache__kcore_existing(const char *from_dir, char *to_dir, return ret; } -static int build_id_cache__add_kcore(const char *filename, const char *debugdir) +static int build_id_cache__add_kcore(const char *filename, const char *debugdir, + bool force) { char dir[32], sbuildid[BUILD_ID_SIZE * 2 + 1]; char from_dir[PATH_MAX], to_dir[PATH_MAX]; @@ -144,7 +145,8 @@ static int build_id_cache__add_kcore(const char *filename, const char *debugdir) scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s", debugdir, sbuildid); - if (!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) { + if (!force && + !build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) { pr_debug("same kcore found in %s\n", to_dir); return 0; } @@ -244,20 +246,9 @@ static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused) return true; } -static int build_id_cache__fprintf_missing(const char *filename, bool force, FILE *fp) +static int build_id_cache__fprintf_missing(struct perf_session *session, FILE *fp) { - struct perf_data_file file = { - .path = filename, - .mode = PERF_DATA_MODE_READ, - .force = force, - }; - struct perf_session *session = perf_session__new(&file, false, NULL); - if (session == NULL) - return -1; - perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0); - perf_session__delete(session); - return 0; } @@ -300,6 +291,12 @@ int cmd_buildid_cache(int argc, const char **argv, *missing_filename = NULL, *update_name_list_str = NULL, *kcore_filename; + char sbuf[STRERR_BUFSIZE]; + + struct perf_data_file file = { + .mode = PERF_DATA_MODE_READ, + }; + struct perf_session *session = NULL; const struct option buildid_cache_options[] = { OPT_STRING('a', "add", &add_name_list_str, @@ -324,8 +321,17 @@ int cmd_buildid_cache(int argc, const char **argv, argc = parse_options(argc, argv, buildid_cache_options, buildid_cache_usage, 0); - if (symbol__init() < 0) - return -1; + if (missing_filename) { + file.path = missing_filename; + file.force = force; + + session = perf_session__new(&file, false, NULL); + if (session == NULL) + return -1; + } + + if (symbol__init(session ? &session->header.env : NULL) < 0) + goto out; setup_pager(); @@ -342,7 +348,7 @@ int cmd_buildid_cache(int argc, const char **argv, continue; } pr_warning("Couldn't add %s: %s\n", - pos->s, strerror(errno)); + pos->s, strerror_r(errno, sbuf, sizeof(sbuf))); } strlist__delete(list); @@ -360,7 +366,7 @@ int cmd_buildid_cache(int argc, const char **argv, continue; } pr_warning("Couldn't remove %s: %s\n", - pos->s, strerror(errno)); + pos->s, strerror_r(errno, sbuf, sizeof(sbuf))); } strlist__delete(list); @@ -368,7 +374,7 @@ int cmd_buildid_cache(int argc, const char **argv, } if (missing_filename) - ret = build_id_cache__fprintf_missing(missing_filename, force, stdout); + ret = build_id_cache__fprintf_missing(session, stdout); if (update_name_list_str) { list = strlist__new(true, update_name_list_str); @@ -381,7 +387,7 @@ int cmd_buildid_cache(int argc, const char **argv, continue; } pr_warning("Couldn't update %s: %s\n", - pos->s, strerror(errno)); + pos->s, strerror_r(errno, sbuf, sizeof(sbuf))); } strlist__delete(list); @@ -389,8 +395,12 @@ int cmd_buildid_cache(int argc, const char **argv, } if (kcore_filename && - build_id_cache__add_kcore(kcore_filename, debugdir)) + build_id_cache__add_kcore(kcore_filename, debugdir, force)) pr_warning("Couldn't add %s\n", kcore_filename); +out: + if (session) + perf_session__delete(session); + return ret; } diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 9a5a035cb426..8c5c11ca8c53 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -327,6 +327,7 @@ static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, struct machine *machine) { struct addr_location al; + struct hists *hists = evsel__hists(evsel); if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { pr_warning("problem processing %d event, skipping it.\n", @@ -334,7 +335,7 @@ static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, return -1; } - if (hists__add_entry(&evsel->hists, &al, sample->period, + if (hists__add_entry(hists, &al, sample->period, sample->weight, sample->transaction)) { pr_warning("problem incrementing symbol period, skipping event\n"); return -1; @@ -346,9 +347,9 @@ static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, * hists__output_resort() and precompute needs the total * period in order to sort entries by percentage delta. */ - evsel->hists.stats.total_period += sample->period; + hists->stats.total_period += sample->period; if (!al.filtered) - evsel->hists.stats.total_non_filtered_period += sample->period; + hists->stats.total_non_filtered_period += sample->period; return 0; } @@ -360,7 +361,7 @@ static struct perf_tool tool = { .exit = perf_event__process_exit, .fork = perf_event__process_fork, .lost = perf_event__process_lost, - .ordered_samples = true, + .ordered_events = true, .ordering_requires_timestamps = true, }; @@ -382,7 +383,7 @@ static void perf_evlist__collapse_resort(struct perf_evlist *evlist) struct perf_evsel *evsel; evlist__for_each(evlist, evsel) { - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); hists__collapse_resort(hists, NULL); } @@ -631,24 +632,26 @@ static void data_process(void) bool first = true; evlist__for_each(evlist_base, evsel_base) { + struct hists *hists_base = evsel__hists(evsel_base); struct data__file *d; int i; data__for_each_file_new(i, d) { struct perf_evlist *evlist = d->session->evlist; struct perf_evsel *evsel; + struct hists *hists; evsel = evsel_match(evsel_base, evlist); if (!evsel) continue; - d->hists = &evsel->hists; + hists = evsel__hists(evsel); + d->hists = hists; - hists__match(&evsel_base->hists, &evsel->hists); + hists__match(hists_base, hists); if (!show_baseline_only) - hists__link(&evsel_base->hists, - &evsel->hists); + hists__link(hists_base, hists); } fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", @@ -659,7 +662,7 @@ static void data_process(void) if (verbose || data__files_cnt > 2) data__fprintf(); - hists__process(&evsel_base->hists); + hists__process(hists_base); } } @@ -683,7 +686,7 @@ static int __cmd_diff(void) d->session = perf_session__new(&d->file, false, &tool); if (!d->session) { pr_err("Failed to open %s\n", d->file.path); - ret = -ENOMEM; + ret = -1; goto out_delete; } @@ -1143,7 +1146,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) argc = parse_options(argc, argv, options, diff_usage, 0); - if (symbol__init() < 0) + if (symbol__init(NULL) < 0) return -1; if (data_init(argc, argv) < 0) diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c index c99e0de7e54a..0f93f859b782 100644 --- a/tools/perf/builtin-evlist.c +++ b/tools/perf/builtin-evlist.c @@ -15,6 +15,7 @@ #include "util/parse-options.h" #include "util/session.h" #include "util/data.h" +#include "util/debug.h" static int __cmd_evlist(const char *file_name, struct perf_attr_details *details) { @@ -27,7 +28,7 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details session = perf_session__new(&file, 0, NULL); if (session == NULL) - return -ENOMEM; + return -1; evlist__for_each(session->evlist, pos) perf_evsel__fprintf(pos, details, stdout); diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c index 178b88ae3d2f..25d20628212e 100644 --- a/tools/perf/builtin-help.c +++ b/tools/perf/builtin-help.c @@ -11,6 +11,7 @@ #include "util/parse-options.h" #include "util/run-command.h" #include "util/help.h" +#include "util/debug.h" static struct man_viewer_list { struct man_viewer_list *next; @@ -102,6 +103,8 @@ static int check_emacsclient_version(void) static void exec_woman_emacs(const char *path, const char *page) { + char sbuf[STRERR_BUFSIZE]; + if (!check_emacsclient_version()) { /* This works only with emacsclient version >= 22. */ struct strbuf man_page = STRBUF_INIT; @@ -110,16 +113,19 @@ static void exec_woman_emacs(const char *path, const char *page) path = "emacsclient"; strbuf_addf(&man_page, "(woman \"%s\")", page); execlp(path, "emacsclient", "-e", man_page.buf, NULL); - warning("failed to exec '%s': %s", path, strerror(errno)); + warning("failed to exec '%s': %s", path, + strerror_r(errno, sbuf, sizeof(sbuf))); } } static void exec_man_konqueror(const char *path, const char *page) { const char *display = getenv("DISPLAY"); + if (display && *display) { struct strbuf man_page = STRBUF_INIT; const char *filename = "kfmclient"; + char sbuf[STRERR_BUFSIZE]; /* It's simpler to launch konqueror using kfmclient. */ if (path) { @@ -138,24 +144,31 @@ static void exec_man_konqueror(const char *path, const char *page) path = "kfmclient"; strbuf_addf(&man_page, "man:%s(1)", page); execlp(path, filename, "newTab", man_page.buf, NULL); - warning("failed to exec '%s': %s", path, strerror(errno)); + warning("failed to exec '%s': %s", path, + strerror_r(errno, sbuf, sizeof(sbuf))); } } static void exec_man_man(const char *path, const char *page) { + char sbuf[STRERR_BUFSIZE]; + if (!path) path = "man"; execlp(path, "man", page, NULL); - warning("failed to exec '%s': %s", path, strerror(errno)); + warning("failed to exec '%s': %s", path, + strerror_r(errno, sbuf, sizeof(sbuf))); } static void exec_man_cmd(const char *cmd, const char *page) { struct strbuf shell_cmd = STRBUF_INIT; + char sbuf[STRERR_BUFSIZE]; + strbuf_addf(&shell_cmd, "%s %s", cmd, page); execl("/bin/sh", "sh", "-c", shell_cmd.buf, NULL); - warning("failed to exec '%s': %s", cmd, strerror(errno)); + warning("failed to exec '%s': %s", cmd, + strerror_r(errno, sbuf, sizeof(sbuf))); } static void add_man_viewer(const char *name) diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index 16c7c11ad06e..de99ca1bb942 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -23,6 +23,7 @@ struct perf_inject { struct perf_tool tool; + struct perf_session *session; bool build_ids; bool sched_stat; const char *input_name; @@ -340,12 +341,8 @@ static int perf_evsel__check_stype(struct perf_evsel *evsel, static int __cmd_inject(struct perf_inject *inject) { - struct perf_session *session; int ret = -EINVAL; - struct perf_data_file file = { - .path = inject->input_name, - .mode = PERF_DATA_MODE_READ, - }; + struct perf_session *session = inject->session; struct perf_data_file *file_out = &inject->output; signal(SIGINT, sig_handler); @@ -357,16 +354,12 @@ static int __cmd_inject(struct perf_inject *inject) inject->tool.tracing_data = perf_event__repipe_tracing_data; } - session = perf_session__new(&file, true, &inject->tool); - if (session == NULL) - return -ENOMEM; - if (inject->build_ids) { inject->tool.sample = perf_event__inject_buildid; } else if (inject->sched_stat) { struct perf_evsel *evsel; - inject->tool.ordered_samples = true; + inject->tool.ordered_events = true; evlist__for_each(session->evlist, evsel) { const char *name = perf_evsel__name(evsel); @@ -389,12 +382,13 @@ static int __cmd_inject(struct perf_inject *inject) ret = perf_session__process_events(session, &inject->tool); if (!file_out->is_pipe) { + if (inject->build_ids) + perf_header__set_feat(&session->header, + HEADER_BUILD_ID); session->header.data_size = inject->bytes_written; perf_session__write_header(session, session->evlist, file_out->fd, true); } - perf_session__delete(session); - return ret; } @@ -424,6 +418,11 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) .mode = PERF_DATA_MODE_WRITE, }, }; + struct perf_data_file file = { + .mode = PERF_DATA_MODE_READ, + }; + int ret; + const struct option options[] = { OPT_BOOLEAN('b', "build-ids", &inject.build_ids, "Inject build-ids into the output stream"), @@ -436,6 +435,8 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) "where and how long tasks slept"), OPT_INCR('v', "verbose", &verbose, "be more verbose (show build ids, etc)"), + OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", + "kallsyms pathname"), OPT_END() }; const char * const inject_usage[] = { @@ -456,8 +457,17 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) return -1; } - if (symbol__init() < 0) + file.path = inject.input_name; + inject.session = perf_session__new(&file, true, &inject.tool); + if (inject.session == NULL) + return -1; + + if (symbol__init(&inject.session->header.env) < 0) return -1; - return __cmd_inject(&inject); + ret = __cmd_inject(&inject); + + perf_session__delete(inject.session); + + return ret; } diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index bef3376bfaf3..f295141025bc 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -256,7 +256,9 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused, static struct perf_tool perf_kmem = { .sample = process_sample_event, .comm = perf_event__process_comm, - .ordered_samples = true, + .mmap = perf_event__process_mmap, + .mmap2 = perf_event__process_mmap2, + .ordered_events = true, }; static double fragmentation(unsigned long n_req, unsigned long n_alloc) @@ -403,10 +405,9 @@ static void sort_result(void) __sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort); } -static int __cmd_kmem(void) +static int __cmd_kmem(struct perf_session *session) { int err = -EINVAL; - struct perf_session *session; const struct perf_evsel_str_handler kmem_tracepoints[] = { { "kmem:kmalloc", perf_evsel__process_alloc_event, }, { "kmem:kmem_cache_alloc", perf_evsel__process_alloc_event, }, @@ -415,34 +416,22 @@ static int __cmd_kmem(void) { "kmem:kfree", perf_evsel__process_free_event, }, { "kmem:kmem_cache_free", perf_evsel__process_free_event, }, }; - struct perf_data_file file = { - .path = input_name, - .mode = PERF_DATA_MODE_READ, - }; - - session = perf_session__new(&file, false, &perf_kmem); - if (session == NULL) - return -ENOMEM; - - if (perf_session__create_kernel_maps(session) < 0) - goto out_delete; if (!perf_session__has_traces(session, "kmem record")) - goto out_delete; + goto out; if (perf_session__set_tracepoints_handlers(session, kmem_tracepoints)) { pr_err("Initializing perf session tracepoint handlers failed\n"); - return -1; + goto out; } setup_pager(); err = perf_session__process_events(session, &perf_kmem); if (err != 0) - goto out_delete; + goto out; sort_result(); print_result(session); -out_delete: - perf_session__delete(session); +out: return err; } @@ -689,29 +678,46 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused) NULL, NULL }; + struct perf_session *session; + struct perf_data_file file = { + .path = input_name, + .mode = PERF_DATA_MODE_READ, + }; + int ret = -1; + argc = parse_options_subcommand(argc, argv, kmem_options, kmem_subcommands, kmem_usage, 0); if (!argc) usage_with_options(kmem_usage, kmem_options); - symbol__init(); - if (!strncmp(argv[0], "rec", 3)) { + symbol__init(NULL); return __cmd_record(argc, argv); - } else if (!strcmp(argv[0], "stat")) { + } + + session = perf_session__new(&file, false, &perf_kmem); + if (session == NULL) + return -1; + + symbol__init(&session->header.env); + + if (!strcmp(argv[0], "stat")) { if (cpu__setup_cpunode_map()) - return -1; + goto out_delete; if (list_empty(&caller_sort)) setup_sorting(&caller_sort, default_sort_order); if (list_empty(&alloc_sort)) setup_sorting(&alloc_sort, default_sort_order); - return __cmd_kmem(); + ret = __cmd_kmem(session); } else usage_with_options(kmem_usage, kmem_options); - return 0; +out_delete: + perf_session__delete(session); + + return ret; } diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 0f1e5a2f6ad7..b65eb0507b38 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -29,114 +29,25 @@ #include <pthread.h> #include <math.h> -#if defined(__i386__) || defined(__x86_64__) -#include <asm/svm.h> -#include <asm/vmx.h> -#include <asm/kvm.h> - -struct event_key { - #define INVALID_KEY (~0ULL) - u64 key; - int info; -}; - -struct kvm_event_stats { - u64 time; - struct stats stats; -}; - -struct kvm_event { - struct list_head hash_entry; - struct rb_node rb; - - struct event_key key; - - struct kvm_event_stats total; - - #define DEFAULT_VCPU_NUM 8 - int max_vcpu; - struct kvm_event_stats *vcpu; -}; - -typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int); - -struct kvm_event_key { - const char *name; - key_cmp_fun key; -}; - - -struct perf_kvm_stat; - -struct kvm_events_ops { - bool (*is_begin_event)(struct perf_evsel *evsel, - struct perf_sample *sample, - struct event_key *key); - bool (*is_end_event)(struct perf_evsel *evsel, - struct perf_sample *sample, struct event_key *key); - void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, - char decode[20]); - const char *name; -}; - -struct exit_reasons_table { - unsigned long exit_code; - const char *reason; -}; - -#define EVENTS_BITS 12 -#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS) - -struct perf_kvm_stat { - struct perf_tool tool; - struct record_opts opts; - struct perf_evlist *evlist; - struct perf_session *session; +#ifdef HAVE_KVM_STAT_SUPPORT +#include <asm/kvm_perf.h> +#include "util/kvm-stat.h" - const char *file_name; - const char *report_event; - const char *sort_key; - int trace_vcpu; - - struct exit_reasons_table *exit_reasons; - int exit_reasons_size; - const char *exit_reasons_isa; - - struct kvm_events_ops *events_ops; - key_cmp_fun compare; - struct list_head kvm_events_cache[EVENTS_CACHE_SIZE]; - - u64 total_time; - u64 total_count; - u64 lost_events; - u64 duration; - - const char *pid_str; - struct intlist *pid_list; - - struct rb_root result; - - int timerfd; - unsigned int display_time; - bool live; -}; - - -static void exit_event_get_key(struct perf_evsel *evsel, - struct perf_sample *sample, - struct event_key *key) +void exit_event_get_key(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) { key->info = 0; - key->key = perf_evsel__intval(evsel, sample, "exit_reason"); + key->key = perf_evsel__intval(evsel, sample, KVM_EXIT_REASON); } -static bool kvm_exit_event(struct perf_evsel *evsel) +bool kvm_exit_event(struct perf_evsel *evsel) { - return !strcmp(evsel->name, "kvm:kvm_exit"); + return !strcmp(evsel->name, KVM_EXIT_TRACE); } -static bool exit_event_begin(struct perf_evsel *evsel, - struct perf_sample *sample, struct event_key *key) +bool exit_event_begin(struct perf_evsel *evsel, + struct perf_sample *sample, struct event_key *key) { if (kvm_exit_event(evsel)) { exit_event_get_key(evsel, sample, key); @@ -146,32 +57,23 @@ static bool exit_event_begin(struct perf_evsel *evsel, return false; } -static bool kvm_entry_event(struct perf_evsel *evsel) +bool kvm_entry_event(struct perf_evsel *evsel) { - return !strcmp(evsel->name, "kvm:kvm_entry"); + return !strcmp(evsel->name, KVM_ENTRY_TRACE); } -static bool exit_event_end(struct perf_evsel *evsel, - struct perf_sample *sample __maybe_unused, - struct event_key *key __maybe_unused) +bool exit_event_end(struct perf_evsel *evsel, + struct perf_sample *sample __maybe_unused, + struct event_key *key __maybe_unused) { return kvm_entry_event(evsel); } -static struct exit_reasons_table vmx_exit_reasons[] = { - VMX_EXIT_REASONS -}; - -static struct exit_reasons_table svm_exit_reasons[] = { - SVM_EXIT_REASONS -}; - -static const char *get_exit_reason(struct perf_kvm_stat *kvm, u64 exit_code) +static const char *get_exit_reason(struct perf_kvm_stat *kvm, + struct exit_reasons_table *tbl, + u64 exit_code) { - int i = kvm->exit_reasons_size; - struct exit_reasons_table *tbl = kvm->exit_reasons; - - while (i--) { + while (tbl->reason != NULL) { if (tbl->exit_code == exit_code) return tbl->reason; tbl++; @@ -182,148 +84,30 @@ static const char *get_exit_reason(struct perf_kvm_stat *kvm, u64 exit_code) return "UNKNOWN"; } -static void exit_event_decode_key(struct perf_kvm_stat *kvm, - struct event_key *key, - char decode[20]) -{ - const char *exit_reason = get_exit_reason(kvm, key->key); - - scnprintf(decode, 20, "%s", exit_reason); -} - -static struct kvm_events_ops exit_events = { - .is_begin_event = exit_event_begin, - .is_end_event = exit_event_end, - .decode_key = exit_event_decode_key, - .name = "VM-EXIT" -}; - -/* - * For the mmio events, we treat: - * the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry - * the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...). - */ -static void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample, - struct event_key *key) -{ - key->key = perf_evsel__intval(evsel, sample, "gpa"); - key->info = perf_evsel__intval(evsel, sample, "type"); -} - -#define KVM_TRACE_MMIO_READ_UNSATISFIED 0 -#define KVM_TRACE_MMIO_READ 1 -#define KVM_TRACE_MMIO_WRITE 2 - -static bool mmio_event_begin(struct perf_evsel *evsel, - struct perf_sample *sample, struct event_key *key) +void exit_event_decode_key(struct perf_kvm_stat *kvm, + struct event_key *key, + char *decode) { - /* MMIO read begin event in kernel. */ - if (kvm_exit_event(evsel)) - return true; - - /* MMIO write begin event in kernel. */ - if (!strcmp(evsel->name, "kvm:kvm_mmio") && - perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_WRITE) { - mmio_event_get_key(evsel, sample, key); - return true; - } - - return false; -} - -static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample, - struct event_key *key) -{ - /* MMIO write end event in kernel. */ - if (kvm_entry_event(evsel)) - return true; - - /* MMIO read end event in kernel.*/ - if (!strcmp(evsel->name, "kvm:kvm_mmio") && - perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_READ) { - mmio_event_get_key(evsel, sample, key); - return true; - } + const char *exit_reason = get_exit_reason(kvm, key->exit_reasons, + key->key); - return false; -} - -static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, - struct event_key *key, - char decode[20]) -{ - scnprintf(decode, 20, "%#lx:%s", (unsigned long)key->key, - key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R"); + scnprintf(decode, DECODE_STR_LEN, "%s", exit_reason); } -static struct kvm_events_ops mmio_events = { - .is_begin_event = mmio_event_begin, - .is_end_event = mmio_event_end, - .decode_key = mmio_event_decode_key, - .name = "MMIO Access" -}; - - /* The time of emulation pio access is from kvm_pio to kvm_entry. */ -static void ioport_event_get_key(struct perf_evsel *evsel, - struct perf_sample *sample, - struct event_key *key) +static bool register_kvm_events_ops(struct perf_kvm_stat *kvm) { - key->key = perf_evsel__intval(evsel, sample, "port"); - key->info = perf_evsel__intval(evsel, sample, "rw"); -} + struct kvm_reg_events_ops *events_ops = kvm_reg_events_ops; -static bool ioport_event_begin(struct perf_evsel *evsel, - struct perf_sample *sample, - struct event_key *key) -{ - if (!strcmp(evsel->name, "kvm:kvm_pio")) { - ioport_event_get_key(evsel, sample, key); - return true; + for (events_ops = kvm_reg_events_ops; events_ops->name; events_ops++) { + if (!strcmp(events_ops->name, kvm->report_event)) { + kvm->events_ops = events_ops->ops; + return true; + } } return false; } -static bool ioport_event_end(struct perf_evsel *evsel, - struct perf_sample *sample __maybe_unused, - struct event_key *key __maybe_unused) -{ - return kvm_entry_event(evsel); -} - -static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, - struct event_key *key, - char decode[20]) -{ - scnprintf(decode, 20, "%#llx:%s", (unsigned long long)key->key, - key->info ? "POUT" : "PIN"); -} - -static struct kvm_events_ops ioport_events = { - .is_begin_event = ioport_event_begin, - .is_end_event = ioport_event_end, - .decode_key = ioport_event_decode_key, - .name = "IO Port Access" -}; - -static bool register_kvm_events_ops(struct perf_kvm_stat *kvm) -{ - bool ret = true; - - if (!strcmp(kvm->report_event, "vmexit")) - kvm->events_ops = &exit_events; - else if (!strcmp(kvm->report_event, "mmio")) - kvm->events_ops = &mmio_events; - else if (!strcmp(kvm->report_event, "ioport")) - kvm->events_ops = &ioport_events; - else { - pr_err("Unknown report event:%s\n", kvm->report_event); - ret = false; - } - - return ret; -} - struct vcpu_event_record { int vcpu_id; u64 start_time; @@ -477,6 +261,54 @@ static bool update_kvm_event(struct kvm_event *event, int vcpu_id, return true; } +static bool is_child_event(struct perf_kvm_stat *kvm, + struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key) +{ + struct child_event_ops *child_ops; + + child_ops = kvm->events_ops->child_ops; + + if (!child_ops) + return false; + + for (; child_ops->name; child_ops++) { + if (!strcmp(evsel->name, child_ops->name)) { + child_ops->get_key(evsel, sample, key); + return true; + } + } + + return false; +} + +static bool handle_child_event(struct perf_kvm_stat *kvm, + struct vcpu_event_record *vcpu_record, + struct event_key *key, + struct perf_sample *sample __maybe_unused) +{ + struct kvm_event *event = NULL; + + if (key->key != INVALID_KEY) + event = find_create_kvm_event(kvm, key); + + vcpu_record->last_event = event; + + return true; +} + +static bool skip_event(const char *event) +{ + const char * const *skip_events; + + for (skip_events = kvm_skip_events; *skip_events; skip_events++) + if (!strcmp(event, *skip_events)) + return true; + + return false; +} + static bool handle_end_event(struct perf_kvm_stat *kvm, struct vcpu_event_record *vcpu_record, struct event_key *key, @@ -525,10 +357,10 @@ static bool handle_end_event(struct perf_kvm_stat *kvm, time_diff = sample->time - time_begin; if (kvm->duration && time_diff > kvm->duration) { - char decode[32]; + char decode[DECODE_STR_LEN]; kvm->events_ops->decode_key(kvm, &event->key, decode); - if (strcmp(decode, "HLT")) { + if (!skip_event(decode)) { pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n", sample->time, sample->pid, vcpu_record->vcpu_id, decode, time_diff/1000); @@ -544,7 +376,7 @@ struct vcpu_event_record *per_vcpu_record(struct thread *thread, struct perf_sample *sample) { /* Only kvm_entry records vcpu id. */ - if (!thread->priv && kvm_entry_event(evsel)) { + if (!thread__priv(thread) && kvm_entry_event(evsel)) { struct vcpu_event_record *vcpu_record; vcpu_record = zalloc(sizeof(*vcpu_record)); @@ -553,11 +385,11 @@ struct vcpu_event_record *per_vcpu_record(struct thread *thread, return NULL; } - vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, "vcpu_id"); - thread->priv = vcpu_record; + vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, VCPU_ID); + thread__set_priv(thread, vcpu_record); } - return thread->priv; + return thread__priv(thread); } static bool handle_kvm_event(struct perf_kvm_stat *kvm, @@ -566,7 +398,8 @@ static bool handle_kvm_event(struct perf_kvm_stat *kvm, struct perf_sample *sample) { struct vcpu_event_record *vcpu_record; - struct event_key key = {.key = INVALID_KEY}; + struct event_key key = { .key = INVALID_KEY, + .exit_reasons = kvm->exit_reasons }; vcpu_record = per_vcpu_record(thread, evsel, sample); if (!vcpu_record) @@ -580,6 +413,9 @@ static bool handle_kvm_event(struct perf_kvm_stat *kvm, if (kvm->events_ops->is_begin_event(evsel, sample, &key)) return handle_begin_event(kvm, vcpu_record, &key, sample->time); + if (is_child_event(kvm, evsel, sample, &key)) + return handle_child_event(kvm, vcpu_record, &key, sample); + if (kvm->events_ops->is_end_event(evsel, sample, &key)) return handle_end_event(kvm, vcpu_record, &key, sample); @@ -707,14 +543,12 @@ static void print_vcpu_info(struct perf_kvm_stat *kvm) pr_info("Analyze events for "); - if (kvm->live) { - if (kvm->opts.target.system_wide) - pr_info("all VMs, "); - else if (kvm->opts.target.pid) - pr_info("pid(s) %s, ", kvm->opts.target.pid); - else - pr_info("dazed and confused on what is monitored, "); - } + if (kvm->opts.target.system_wide) + pr_info("all VMs, "); + else if (kvm->opts.target.pid) + pr_info("pid(s) %s, ", kvm->opts.target.pid); + else + pr_info("dazed and confused on what is monitored, "); if (vcpu == -1) pr_info("all VCPUs:\n\n"); @@ -740,7 +574,7 @@ static void show_timeofday(void) static void print_result(struct perf_kvm_stat *kvm) { - char decode[20]; + char decode[DECODE_STR_LEN]; struct kvm_event *event; int vcpu = kvm->trace_vcpu; @@ -751,13 +585,13 @@ static void print_result(struct perf_kvm_stat *kvm) pr_info("\n\n"); print_vcpu_info(kvm); - pr_info("%20s ", kvm->events_ops->name); + pr_info("%*s ", DECODE_STR_LEN, kvm->events_ops->name); pr_info("%10s ", "Samples"); pr_info("%9s ", "Samples%"); pr_info("%9s ", "Time%"); - pr_info("%10s ", "Min Time"); - pr_info("%10s ", "Max Time"); + pr_info("%11s ", "Min Time"); + pr_info("%11s ", "Max Time"); pr_info("%16s ", "Avg time"); pr_info("\n\n"); @@ -770,12 +604,12 @@ static void print_result(struct perf_kvm_stat *kvm) min = get_event_min(event, vcpu); kvm->events_ops->decode_key(kvm, &event->key, decode); - pr_info("%20s ", decode); + pr_info("%*s ", DECODE_STR_LEN, decode); pr_info("%10llu ", (unsigned long long)ecount); pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); - pr_info("%8" PRIu64 "us ", min / 1000); - pr_info("%8" PRIu64 "us ", max / 1000); + pr_info("%9.2fus ", (double)min / 1e3); + pr_info("%9.2fus ", (double)max / 1e3); pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3, kvm_event_rel_stddev(vcpu, event)); pr_info("\n"); @@ -839,34 +673,28 @@ static int process_sample_event(struct perf_tool *tool, static int cpu_isa_config(struct perf_kvm_stat *kvm) { char buf[64], *cpuid; - int err, isa; + int err; if (kvm->live) { err = get_cpuid(buf, sizeof(buf)); if (err != 0) { - pr_err("Failed to look up CPU type (Intel or AMD)\n"); + pr_err("Failed to look up CPU type\n"); return err; } cpuid = buf; } else cpuid = kvm->session->header.env.cpuid; - if (strstr(cpuid, "Intel")) - isa = 1; - else if (strstr(cpuid, "AMD")) - isa = 0; - else { - pr_err("CPU %s is not supported.\n", cpuid); - return -ENOTSUP; + if (!cpuid) { + pr_err("Failed to look up CPU type\n"); + return -EINVAL; } - if (isa == 1) { - kvm->exit_reasons = vmx_exit_reasons; - kvm->exit_reasons_size = ARRAY_SIZE(vmx_exit_reasons); - kvm->exit_reasons_isa = "VMX"; - } + err = cpu_isa_init(kvm, cpuid); + if (err == -ENOTSUP) + pr_err("CPU %s is not supported.\n", cpuid); - return 0; + return err; } static bool verify_vcpu(int vcpu) @@ -902,7 +730,7 @@ static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx, return -1; } - err = perf_session_queue_event(kvm->session, event, &sample, 0); + err = perf_session_queue_event(kvm->session, event, &kvm->tool, &sample, 0); /* * FIXME: Here we can't consume the event, as perf_session_queue_event will * point to it, and it'll get possibly overwritten by the kernel. @@ -955,7 +783,7 @@ static int perf_kvm__mmap_read(struct perf_kvm_stat *kvm) /* flush queue after each round in which we processed events */ if (ntotal) { - kvm->session->ordered_samples.next_flush = flush_time; + kvm->session->ordered_events.next_flush = flush_time; err = kvm->tool.finished_round(&kvm->tool, NULL, kvm->session); if (err) { if (kvm->lost_events) @@ -1055,15 +883,11 @@ static int fd_set_nonblock(int fd) return 0; } -static -int perf_kvm__handle_stdin(struct termios *tc_now, struct termios *tc_save) +static int perf_kvm__handle_stdin(void) { int c; - tcsetattr(0, TCSANOW, tc_now); c = getc(stdin); - tcsetattr(0, TCSAFLUSH, tc_save); - if (c == 'q') return 1; @@ -1072,9 +896,8 @@ int perf_kvm__handle_stdin(struct termios *tc_now, struct termios *tc_save) static int kvm_events_live_report(struct perf_kvm_stat *kvm) { - struct pollfd *pollfds = NULL; - int nr_fds, nr_stdin, ret, err = -EINVAL; - struct termios tc, save; + int nr_stdin, ret, err = -EINVAL; + struct termios save; /* live flag must be set first */ kvm->live = true; @@ -1089,41 +912,25 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm) goto out; } + set_term_quiet_input(&save); init_kvm_event_record(kvm); - tcgetattr(0, &save); - tc = save; - tc.c_lflag &= ~(ICANON | ECHO); - tc.c_cc[VMIN] = 0; - tc.c_cc[VTIME] = 0; - signal(SIGINT, sig_handler); signal(SIGTERM, sig_handler); - /* copy pollfds -- need to add timerfd and stdin */ - nr_fds = kvm->evlist->nr_fds; - pollfds = zalloc(sizeof(struct pollfd) * (nr_fds + 2)); - if (!pollfds) { - err = -ENOMEM; - goto out; - } - memcpy(pollfds, kvm->evlist->pollfd, - sizeof(struct pollfd) * kvm->evlist->nr_fds); - /* add timer fd */ if (perf_kvm__timerfd_create(kvm) < 0) { err = -1; goto out; } - pollfds[nr_fds].fd = kvm->timerfd; - pollfds[nr_fds].events = POLLIN; - nr_fds++; + if (perf_evlist__add_pollfd(kvm->evlist, kvm->timerfd) < 0) + goto out; + + nr_stdin = perf_evlist__add_pollfd(kvm->evlist, fileno(stdin)); + if (nr_stdin < 0) + goto out; - pollfds[nr_fds].fd = fileno(stdin); - pollfds[nr_fds].events = POLLIN; - nr_stdin = nr_fds; - nr_fds++; if (fd_set_nonblock(fileno(stdin)) != 0) goto out; @@ -1131,6 +938,7 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm) perf_evlist__enable(kvm->evlist); while (!done) { + struct fdarray *fda = &kvm->evlist->pollfd; int rc; rc = perf_kvm__mmap_read(kvm); @@ -1141,11 +949,11 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm) if (err) goto out; - if (pollfds[nr_stdin].revents & POLLIN) - done = perf_kvm__handle_stdin(&tc, &save); + if (fda->entries[nr_stdin].revents & POLLIN) + done = perf_kvm__handle_stdin(); if (!rc && !done) - err = poll(pollfds, nr_fds, 100); + err = fdarray__poll(fda, 100); } perf_evlist__disable(kvm->evlist); @@ -1159,7 +967,7 @@ out: if (kvm->timerfd >= 0) close(kvm->timerfd); - free(pollfds); + tcsetattr(0, TCSAFLUSH, &save); return err; } @@ -1168,6 +976,7 @@ static int kvm_live_open_events(struct perf_kvm_stat *kvm) int err, rc = -1; struct perf_evsel *pos; struct perf_evlist *evlist = kvm->evlist; + char sbuf[STRERR_BUFSIZE]; perf_evlist__config(evlist, &kvm->opts); @@ -1204,12 +1013,14 @@ static int kvm_live_open_events(struct perf_kvm_stat *kvm) err = perf_evlist__open(evlist); if (err < 0) { - printf("Couldn't create the events: %s\n", strerror(errno)); + printf("Couldn't create the events: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out; } if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages, false) < 0) { - ui__error("Failed to mmap the events: %s\n", strerror(errno)); + ui__error("Failed to mmap the events: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); perf_evlist__close(evlist); goto out; } @@ -1228,7 +1039,7 @@ static int read_events(struct perf_kvm_stat *kvm) struct perf_tool eops = { .sample = process_sample_event, .comm = perf_event__process_comm, - .ordered_samples = true, + .ordered_events = true, }; struct perf_data_file file = { .path = kvm->file_name, @@ -1239,9 +1050,11 @@ static int read_events(struct perf_kvm_stat *kvm) kvm->session = perf_session__new(&file, false, &kvm->tool); if (!kvm->session) { pr_err("Initializing perf session failed\n"); - return -EINVAL; + return -1; } + symbol__init(&kvm->session->header.env); + if (!perf_session__has_traces(kvm->session, "kvm record")) return -EINVAL; @@ -1258,8 +1071,8 @@ static int read_events(struct perf_kvm_stat *kvm) static int parse_target_str(struct perf_kvm_stat *kvm) { - if (kvm->pid_str) { - kvm->pid_list = intlist__new(kvm->pid_str); + if (kvm->opts.target.pid) { + kvm->pid_list = intlist__new(kvm->opts.target.pid); if (kvm->pid_list == NULL) { pr_err("Error parsing process id string\n"); return -EINVAL; @@ -1300,13 +1113,6 @@ exit: return ret; } -static const char * const kvm_events_tp[] = { - "kvm:kvm_entry", - "kvm:kvm_exit", - "kvm:kvm_mmio", - "kvm:kvm_pio", -}; - #define STRDUP_FAIL_EXIT(s) \ ({ char *_p; \ _p = strdup(s); \ @@ -1318,7 +1124,7 @@ static const char * const kvm_events_tp[] = { static int kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) { - unsigned int rec_argc, i, j; + unsigned int rec_argc, i, j, events_tp_size; const char **rec_argv; const char * const record_args[] = { "record", @@ -1326,9 +1132,14 @@ kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) "-m", "1024", "-c", "1", }; + const char * const *events_tp; + events_tp_size = 0; + + for (events_tp = kvm_events_tp; *events_tp; events_tp++) + events_tp_size++; rec_argc = ARRAY_SIZE(record_args) + argc + 2 + - 2 * ARRAY_SIZE(kvm_events_tp); + 2 * events_tp_size; rec_argv = calloc(rec_argc + 1, sizeof(char *)); if (rec_argv == NULL) @@ -1337,7 +1148,7 @@ kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) for (i = 0; i < ARRAY_SIZE(record_args); i++) rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]); - for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) { + for (j = 0; j < events_tp_size; j++) { rec_argv[i++] = "-e"; rec_argv[i++] = STRDUP_FAIL_EXIT(kvm_events_tp[j]); } @@ -1356,13 +1167,14 @@ kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) { const struct option kvm_events_report_options[] = { OPT_STRING(0, "event", &kvm->report_event, "report event", - "event for reporting: vmexit, mmio, ioport"), + "event for reporting: vmexit, " + "mmio (x86 only), ioport (x86 only)"), OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, "vcpu id to report"), OPT_STRING('k', "key", &kvm->sort_key, "sort-key", "key for sorting: sample(sort by samples number)" " time (sort by avg time)"), - OPT_STRING('p', "pid", &kvm->pid_str, "pid", + OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid", "analyze events only for given process id(s)"), OPT_END() }; @@ -1372,8 +1184,6 @@ kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) NULL }; - symbol__init(); - if (argc) { argc = parse_options(argc, argv, kvm_events_report_options, @@ -1383,6 +1193,9 @@ kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) kvm_events_report_options); } + if (!kvm->opts.target.pid) + kvm->opts.target.system_wide = true; + return kvm_events_report_vcpu(kvm); } @@ -1391,16 +1204,16 @@ static struct perf_evlist *kvm_live_event_list(void) { struct perf_evlist *evlist; char *tp, *name, *sys; - unsigned int j; int err = -1; + const char * const *events_tp; evlist = perf_evlist__new(); if (evlist == NULL) return NULL; - for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) { + for (events_tp = kvm_events_tp; *events_tp; events_tp++) { - tp = strdup(kvm_events_tp[j]); + tp = strdup(*events_tp); if (tp == NULL) goto out; @@ -1409,7 +1222,7 @@ static struct perf_evlist *kvm_live_event_list(void) name = strchr(tp, ':'); if (name == NULL) { pr_err("Error parsing %s tracepoint: subsystem delimiter not found\n", - kvm_events_tp[j]); + *events_tp); free(tp); goto out; } @@ -1417,7 +1230,7 @@ static struct perf_evlist *kvm_live_event_list(void) name++; if (perf_evlist__add_newtp(evlist, sys, name, NULL)) { - pr_err("Failed to add %s tracepoint to the list\n", kvm_events_tp[j]); + pr_err("Failed to add %s tracepoint to the list\n", *events_tp); free(tp); goto out; } @@ -1462,7 +1275,9 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, "key for sorting: sample(sort by samples number)" " time (sort by avg time)"), OPT_U64(0, "duration", &kvm->duration, - "show events other than HALT that take longer than duration usecs"), + "show events other than" + " HLT (x86 only) or Wait state (s390 only)" + " that take longer than duration usecs"), OPT_END() }; const char * const live_usage[] = { @@ -1480,7 +1295,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, kvm->tool.exit = perf_event__process_exit; kvm->tool.fork = perf_event__process_fork; kvm->tool.lost = process_lost_event; - kvm->tool.ordered_samples = true; + kvm->tool.ordered_events = true; perf_tool__fill_defaults(&kvm->tool); /* set defaults */ @@ -1491,7 +1306,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, kvm->opts.target.uid_str = NULL; kvm->opts.target.uid = UINT_MAX; - symbol__init(); + symbol__init(NULL); disable_buildid_cache(); use_browser = 0; @@ -1538,11 +1353,12 @@ static int kvm_events_live(struct perf_kvm_stat *kvm, */ kvm->session = perf_session__new(&file, false, &kvm->tool); if (kvm->session == NULL) { - err = -ENOMEM; + err = -1; goto out; } kvm->session->evlist = kvm->evlist; perf_session__set_id_hdr_size(kvm->session); + ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true); machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target, kvm->evlist->threads, false); err = kvm_live_open_events(kvm); @@ -1585,9 +1401,6 @@ static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) .report_event = "vmexit", .sort_key = "sample", - .exit_reasons = svm_exit_reasons, - .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons), - .exit_reasons_isa = "SVM", }; if (argc == 1) { @@ -1609,7 +1422,7 @@ static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) perf_stat: return cmd_stat(argc, argv, NULL); } -#endif +#endif /* HAVE_KVM_STAT_SUPPORT */ static int __cmd_record(const char *file_name, int argc, const char **argv) { @@ -1726,7 +1539,7 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) return cmd_top(argc, argv, NULL); else if (!strncmp(argv[0], "buildid-list", 12)) return __cmd_buildid_list(file_name, argc, argv); -#if defined(__i386__) || defined(__x86_64__) +#ifdef HAVE_KVM_STAT_SUPPORT else if (!strncmp(argv[0], "stat", 4)) return kvm_cmd_stat(file_name, argc, argv); #endif diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index 6148afc995c6..e7ec71589da6 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -852,7 +852,7 @@ static int __cmd_report(bool display_info) struct perf_tool eops = { .sample = process_sample_event, .comm = perf_event__process_comm, - .ordered_samples = true, + .ordered_events = true, }; struct perf_data_file file = { .path = input_name, @@ -862,9 +862,11 @@ static int __cmd_report(bool display_info) session = perf_session__new(&file, false, &eops); if (!session) { pr_err("Initializing perf session failed\n"); - return -ENOMEM; + return -1; } + symbol__init(&session->header.env); + if (!perf_session__has_traces(session, "lock record")) goto out_delete; @@ -974,7 +976,6 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused) unsigned int i; int rc = 0; - symbol__init(); for (i = 0; i < LOCKHASH_SIZE; i++) INIT_LIST_HEAD(lockhash_table + i); diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c index 4a1a6c94a5eb..24db6ffe2957 100644 --- a/tools/perf/builtin-mem.c +++ b/tools/perf/builtin-mem.c @@ -124,7 +124,7 @@ static int report_raw_events(struct perf_mem *mem) &mem->tool); if (session == NULL) - return -ENOMEM; + return -1; if (mem->cpu_list) { ret = perf_session__cpu_bitmap(session, mem->cpu_list, @@ -133,7 +133,7 @@ static int report_raw_events(struct perf_mem *mem) goto out_delete; } - if (symbol__init() < 0) + if (symbol__init(&session->header.env) < 0) return -1; printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); @@ -194,7 +194,7 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) .lost = perf_event__process_lost, .fork = perf_event__process_fork, .build_id = perf_event__process_build_id, - .ordered_samples = true, + .ordered_events = true, }, .input_name = "perf.data", }; diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c index c63fa2925075..04412b4770a2 100644 --- a/tools/perf/builtin-probe.c +++ b/tools/perf/builtin-probe.c @@ -290,8 +290,11 @@ static void cleanup_params(void) static void pr_err_with_code(const char *msg, int err) { + char sbuf[STRERR_BUFSIZE]; + pr_err("%s", msg); - pr_debug(" Reason: %s (Code: %d)", strerror(-err), err); + pr_debug(" Reason: %s (Code: %d)", + strerror_r(-err, sbuf, sizeof(sbuf)), err); pr_err("\n"); } @@ -373,6 +376,8 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) "target executable name or path", opt_set_target), OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, "Disable symbol demangling"), + OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, + "Enable kernel symbol demangling"), OPT_END() }; int ret; @@ -467,7 +472,8 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) usage_with_options(probe_usage, options); } - ret = show_line_range(¶ms.line_range, params.target); + ret = show_line_range(¶ms.line_range, params.target, + params.uprobes); if (ret < 0) pr_err_with_code(" Error: Failed to show lines.", ret); return ret; diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 378b85b731a7..2583a9b04317 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -14,6 +14,8 @@ #include "util/parse-options.h" #include "util/parse-events.h" +#include "util/callchain.h" +#include "util/cgroup.h" #include "util/header.h" #include "util/event.h" #include "util/evlist.h" @@ -65,8 +67,9 @@ static int process_synthesized_event(struct perf_tool *tool, return record__write(rec, event, event->header.size); } -static int record__mmap_read(struct record *rec, struct perf_mmap *md) +static int record__mmap_read(struct record *rec, int idx) { + struct perf_mmap *md = &rec->evlist->mmap[idx]; unsigned int head = perf_mmap__read_head(md); unsigned int old = md->prev; unsigned char *data = md->base + page_size; @@ -102,8 +105,7 @@ static int record__mmap_read(struct record *rec, struct perf_mmap *md) } md->prev = old; - perf_mmap__write_tail(md, old); - + perf_evlist__mmap_consume(rec->evlist, idx); out: return rc; } @@ -161,7 +163,7 @@ try_again: if (perf_evlist__apply_filters(evlist)) { error("failed to set filter with %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, msg, sizeof(msg))); rc = -1; goto out; } @@ -175,7 +177,8 @@ try_again: "(current value: %u)\n", opts->mmap_pages); rc = -errno; } else { - pr_err("failed to mmap with %d (%s)\n", errno, strerror(errno)); + pr_err("failed to mmap with %d (%s)\n", errno, + strerror_r(errno, msg, sizeof(msg))); rc = -errno; } goto out; @@ -238,19 +241,24 @@ static struct perf_event_header finished_round_event = { static int record__mmap_read_all(struct record *rec) { + u64 bytes_written = rec->bytes_written; int i; int rc = 0; for (i = 0; i < rec->evlist->nr_mmaps; i++) { if (rec->evlist->mmap[i].base) { - if (record__mmap_read(rec, &rec->evlist->mmap[i]) != 0) { + if (record__mmap_read(rec, i) != 0) { rc = -1; goto out; } } } - if (perf_header__has_feat(&rec->session->header, HEADER_TRACING_DATA)) + /* + * Mark the round finished in case we wrote + * at least one event. + */ + if (bytes_written != rec->bytes_written) rc = record__write(rec, &finished_round_event, sizeof(finished_round_event)); out: @@ -302,7 +310,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) struct record_opts *opts = &rec->opts; struct perf_data_file *file = &rec->file; struct perf_session *session; - bool disabled = false; + bool disabled = false, draining = false; rec->progname = argv[0]; @@ -451,9 +459,9 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) } if (hits == rec->samples) { - if (done) + if (done || draining) break; - err = poll(rec->evlist->pollfd, rec->evlist->nr_fds, -1); + err = perf_evlist__poll(rec->evlist, -1); /* * Propagate error, only if there's any. Ignore positive * number of returned events and interrupt error. @@ -461,6 +469,9 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) if (err > 0 || (err < 0 && errno == EINTR)) err = 0; waking++; + + if (perf_evlist__filter_pollfd(rec->evlist, POLLERR | POLLHUP) == 0) + draining = true; } /* @@ -475,7 +486,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) } if (forks && workload_exec_errno) { - char msg[512]; + char msg[STRERR_BUFSIZE]; const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); pr_err("Workload failed: %s\n", emsg); err = -1; @@ -615,145 +626,56 @@ error: return ret; } -#ifdef HAVE_DWARF_UNWIND_SUPPORT -static int get_stack_size(char *str, unsigned long *_size) -{ - char *endptr; - unsigned long size; - unsigned long max_size = round_down(USHRT_MAX, sizeof(u64)); - - size = strtoul(str, &endptr, 0); - - do { - if (*endptr) - break; - - size = round_up(size, sizeof(u64)); - if (!size || size > max_size) - break; - - *_size = size; - return 0; - - } while (0); - - pr_err("callchain: Incorrect stack dump size (max %ld): %s\n", - max_size, str); - return -1; -} -#endif /* HAVE_DWARF_UNWIND_SUPPORT */ - -int record_parse_callchain(const char *arg, struct record_opts *opts) -{ - char *tok, *name, *saveptr = NULL; - char *buf; - int ret = -1; - - /* We need buffer that we know we can write to. */ - buf = malloc(strlen(arg) + 1); - if (!buf) - return -ENOMEM; - - strcpy(buf, arg); - - tok = strtok_r((char *)buf, ",", &saveptr); - name = tok ? : (char *)buf; - - do { - /* Framepointer style */ - if (!strncmp(name, "fp", sizeof("fp"))) { - if (!strtok_r(NULL, ",", &saveptr)) { - opts->call_graph = CALLCHAIN_FP; - ret = 0; - } else - pr_err("callchain: No more arguments " - "needed for -g fp\n"); - break; - -#ifdef HAVE_DWARF_UNWIND_SUPPORT - /* Dwarf style */ - } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) { - const unsigned long default_stack_dump_size = 8192; - - ret = 0; - opts->call_graph = CALLCHAIN_DWARF; - opts->stack_dump_size = default_stack_dump_size; - - tok = strtok_r(NULL, ",", &saveptr); - if (tok) { - unsigned long size = 0; - - ret = get_stack_size(tok, &size); - opts->stack_dump_size = size; - } -#endif /* HAVE_DWARF_UNWIND_SUPPORT */ - } else { - pr_err("callchain: Unknown --call-graph option " - "value: %s\n", arg); - break; - } - - } while (0); - - free(buf); - return ret; -} - -static void callchain_debug(struct record_opts *opts) +static void callchain_debug(void) { static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF" }; - pr_debug("callchain: type %s\n", str[opts->call_graph]); + pr_debug("callchain: type %s\n", str[callchain_param.record_mode]); - if (opts->call_graph == CALLCHAIN_DWARF) + if (callchain_param.record_mode == CALLCHAIN_DWARF) pr_debug("callchain: stack dump size %d\n", - opts->stack_dump_size); + callchain_param.dump_size); } -int record_parse_callchain_opt(const struct option *opt, +int record_parse_callchain_opt(const struct option *opt __maybe_unused, const char *arg, int unset) { - struct record_opts *opts = opt->value; int ret; - opts->call_graph_enabled = !unset; + callchain_param.enabled = !unset; /* --no-call-graph */ if (unset) { - opts->call_graph = CALLCHAIN_NONE; + callchain_param.record_mode = CALLCHAIN_NONE; pr_debug("callchain: disabled\n"); return 0; } - ret = record_parse_callchain(arg, opts); + ret = parse_callchain_record_opt(arg); if (!ret) - callchain_debug(opts); + callchain_debug(); return ret; } -int record_callchain_opt(const struct option *opt, +int record_callchain_opt(const struct option *opt __maybe_unused, const char *arg __maybe_unused, int unset __maybe_unused) { - struct record_opts *opts = opt->value; + callchain_param.enabled = true; - opts->call_graph_enabled = !unset; + if (callchain_param.record_mode == CALLCHAIN_NONE) + callchain_param.record_mode = CALLCHAIN_FP; - if (opts->call_graph == CALLCHAIN_NONE) - opts->call_graph = CALLCHAIN_FP; - - callchain_debug(opts); + callchain_debug(); return 0; } static int perf_record_config(const char *var, const char *value, void *cb) { - struct record *rec = cb; - if (!strcmp(var, "record.call-graph")) - return record_parse_callchain(value, &rec->opts); + var = "call-graph.record-mode"; /* fall-through */ return perf_default_config(var, value, cb); } @@ -776,6 +698,7 @@ static const char * const record_usage[] = { */ static struct record record = { .opts = { + .sample_time = true, .mmap_pages = UINT_MAX, .user_freq = UINT_MAX, .user_interval = ULLONG_MAX, @@ -902,7 +825,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) usage_with_options(record_usage, record_options); } - symbol__init(); + symbol__init(NULL); if (symbol_conf.kptr_restrict) pr_warning( diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 21d830bafff3..140a6cd88351 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -58,17 +58,19 @@ struct report { const char *symbol_filter_str; float min_percent; u64 nr_entries; + u64 queue_size; DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); }; static int report__config(const char *var, const char *value, void *cb) { + struct report *rep = cb; + if (!strcmp(var, "report.group")) { symbol_conf.event_group = perf_config_bool(var, value); return 0; } if (!strcmp(var, "report.percent-limit")) { - struct report *rep = cb; rep->min_percent = strtof(value, NULL); return 0; } @@ -76,6 +78,10 @@ static int report__config(const char *var, const char *value, void *cb) symbol_conf.cumulate_callchain = perf_config_bool(var, value); return 0; } + if (!strcmp(var, "report.queue-size")) { + rep->queue_size = perf_config_u64(var, value); + return 0; + } return perf_default_config(var, value, cb); } @@ -251,6 +257,13 @@ static int report__setup_sample_type(struct report *rep) } } + if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { + if ((sample_type & PERF_SAMPLE_REGS_USER) && + (sample_type & PERF_SAMPLE_STACK_USER)) + callchain_param.record_mode = CALLCHAIN_DWARF; + else + callchain_param.record_mode = CALLCHAIN_FP; + } return 0; } @@ -282,12 +295,14 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report evname = buf; for_each_group_member(pos, evsel) { + const struct hists *pos_hists = evsel__hists(pos); + if (symbol_conf.filter_relative) { - nr_samples += pos->hists.stats.nr_non_filtered_samples; - nr_events += pos->hists.stats.total_non_filtered_period; + nr_samples += pos_hists->stats.nr_non_filtered_samples; + nr_events += pos_hists->stats.total_non_filtered_period; } else { - nr_samples += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE]; - nr_events += pos->hists.stats.total_period; + nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE]; + nr_events += pos_hists->stats.total_period; } } } @@ -312,7 +327,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, struct perf_evsel *pos; evlist__for_each(evlist, pos) { - struct hists *hists = &pos->hists; + struct hists *hists = evsel__hists(pos); const char *evname = perf_evsel__name(pos); if (symbol_conf.event_group && @@ -421,7 +436,7 @@ static void report__collapse_hists(struct report *rep) ui_progress__init(&prog, rep->nr_entries, "Merging related events..."); evlist__for_each(rep->session->evlist, pos) { - struct hists *hists = &pos->hists; + struct hists *hists = evsel__hists(pos); if (pos->idx == 0) hists->symbol_filter_str = rep->symbol_filter_str; @@ -431,7 +446,7 @@ static void report__collapse_hists(struct report *rep) /* Non-group events are considered as leader */ if (symbol_conf.event_group && !perf_evsel__is_group_leader(pos)) { - struct hists *leader_hists = &pos->leader->hists; + struct hists *leader_hists = evsel__hists(pos->leader); hists__match(leader_hists, hists); hists__link(leader_hists, hists); @@ -479,6 +494,7 @@ static int __cmd_report(struct report *rep) if (dump_trace) { perf_session__fprintf_nr_events(session, stdout); + perf_evlist__fprintf_nr_events(session->evlist, stdout); return 0; } } @@ -494,7 +510,7 @@ static int __cmd_report(struct report *rep) } evlist__for_each(session->evlist, pos) - hists__output_resort(&pos->hists); + hists__output_resort(evsel__hists(pos)); return report__browse_hists(rep); } @@ -559,7 +575,6 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) struct stat st; bool has_br_stack = false; int branch_mode = -1; - int ret = -1; char callchain_default_opt[] = "fractal,0.5,callee"; const char * const report_usage[] = { "perf report [<options>]", @@ -578,7 +593,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) .attr = perf_event__process_attr, .tracing_data = perf_event__process_tracing_data, .build_id = perf_event__process_build_id, - .ordered_samples = true, + .ordered_events = true, .ordering_requires_timestamps = true, }, .max_stack = PERF_MAX_STACK_DEPTH, @@ -674,6 +689,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) "objdump binary to use for disassembly and annotations"), OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, "Disable symbol demangling"), + OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, + "Enable kernel symbol demangling"), OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"), OPT_CALLBACK(0, "percent-limit", &report, "percent", "Don't show entries under that percent", parse_percent_limit), @@ -684,6 +701,10 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) struct perf_data_file file = { .mode = PERF_DATA_MODE_READ, }; + int ret = hists__init(); + + if (ret < 0) + return ret; perf_config(report__config, &report); @@ -712,14 +733,19 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) repeat: session = perf_session__new(&file, false, &report.tool); if (session == NULL) - return -ENOMEM; + return -1; + + if (report.queue_size) { + ordered_events__set_alloc_size(&session->ordered_events, + report.queue_size); + } report.session = session; has_br_stack = perf_header__has_feat(&session->header, HEADER_BRANCH_STACK); - if (branch_mode == -1 && has_br_stack) { + if ((branch_mode == -1 && has_br_stack) || branch_mode == 1) { sort__mode = SORT_MODE__BRANCH; symbol_conf.cumulate_callchain = false; } @@ -787,7 +813,7 @@ repeat: } } - if (symbol__init() < 0) + if (symbol__init(&session->header.env) < 0) goto error; if (argc) { diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index c38d06c04775..891c3930080e 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -10,6 +10,7 @@ #include "util/header.h" #include "util/session.h" #include "util/tool.h" +#include "util/cloexec.h" #include "util/parse-options.h" #include "util/trace-event.h" @@ -427,6 +428,7 @@ static u64 get_cpu_usage_nsec_parent(void) static int self_open_counters(void) { struct perf_event_attr attr; + char sbuf[STRERR_BUFSIZE]; int fd; memset(&attr, 0, sizeof(attr)); @@ -434,11 +436,13 @@ static int self_open_counters(void) attr.type = PERF_TYPE_SOFTWARE; attr.config = PERF_COUNT_SW_TASK_CLOCK; - fd = sys_perf_event_open(&attr, 0, -1, -1, 0); + fd = sys_perf_event_open(&attr, 0, -1, -1, + perf_event_open_cloexec_flag()); if (fd < 0) pr_err("Error: sys_perf_event_open() syscall returned " - "with %d (%s)\n", fd, strerror(errno)); + "with %d (%s)\n", fd, + strerror_r(errno, sbuf, sizeof(sbuf))); return fd; } @@ -935,8 +939,8 @@ static int latency_switch_event(struct perf_sched *sched, return -1; } - sched_out = machine__findnew_thread(machine, 0, prev_pid); - sched_in = machine__findnew_thread(machine, 0, next_pid); + sched_out = machine__findnew_thread(machine, -1, prev_pid); + sched_in = machine__findnew_thread(machine, -1, next_pid); out_events = thread_atoms_search(&sched->atom_root, sched_out, &sched->cmp_pid); if (!out_events) { @@ -979,7 +983,7 @@ static int latency_runtime_event(struct perf_sched *sched, { const u32 pid = perf_evsel__intval(evsel, sample, "pid"); const u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); - struct thread *thread = machine__findnew_thread(machine, 0, pid); + struct thread *thread = machine__findnew_thread(machine, -1, pid); struct work_atoms *atoms = thread_atoms_search(&sched->atom_root, thread, &sched->cmp_pid); u64 timestamp = sample->time; int cpu = sample->cpu; @@ -1012,7 +1016,7 @@ static int latency_wakeup_event(struct perf_sched *sched, struct thread *wakee; u64 timestamp = sample->time; - wakee = machine__findnew_thread(machine, 0, pid); + wakee = machine__findnew_thread(machine, -1, pid); atoms = thread_atoms_search(&sched->atom_root, wakee, &sched->cmp_pid); if (!atoms) { if (thread_atoms_insert(sched, wakee)) @@ -1072,7 +1076,7 @@ static int latency_migrate_task_event(struct perf_sched *sched, if (sched->profile_cpu == -1) return 0; - migrant = machine__findnew_thread(machine, 0, pid); + migrant = machine__findnew_thread(machine, -1, pid); atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid); if (!atoms) { if (thread_atoms_insert(sched, migrant)) @@ -1290,7 +1294,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel, return -1; } - sched_in = machine__findnew_thread(machine, 0, next_pid); + sched_in = machine__findnew_thread(machine, -1, next_pid); sched->curr_thread[this_cpu] = sched_in; @@ -1427,9 +1431,6 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __maybe_ { int err = 0; - evsel->hists.stats.total_period += sample->period; - hists__inc_nr_samples(&evsel->hists, true); - if (evsel->handler != NULL) { tracepoint_handler f = evsel->handler; err = f(tool, evsel, sample, machine); @@ -1460,6 +1461,8 @@ static int perf_sched__read_events(struct perf_sched *sched, return -1; } + symbol__init(&session->header.env); + if (perf_session__set_tracepoints_handlers(session, handlers)) goto out_delete; @@ -1660,7 +1663,7 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused) .comm = perf_event__process_comm, .lost = perf_event__process_lost, .fork = perf_sched__process_fork_event, - .ordered_samples = true, + .ordered_events = true, }, .cmp_pid = LIST_HEAD_INIT(sched.cmp_pid), .sort_list = LIST_HEAD_INIT(sched.sort_list), @@ -1745,7 +1748,6 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused) if (!strcmp(argv[0], "script")) return cmd_script(argc, argv, prefix); - symbol__init(); if (!strncmp(argv[0], "rec", 3)) { return __cmd_record(argc, argv); } else if (!strncmp(argv[0], "lat", 3)) { diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 9e9c91f5b7fa..9708a1290571 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -44,6 +44,7 @@ enum perf_output_field { PERF_OUTPUT_ADDR = 1U << 10, PERF_OUTPUT_SYMOFFSET = 1U << 11, PERF_OUTPUT_SRCLINE = 1U << 12, + PERF_OUTPUT_PERIOD = 1U << 13, }; struct output_option { @@ -63,6 +64,7 @@ struct output_option { {.str = "addr", .field = PERF_OUTPUT_ADDR}, {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, + {.str = "period", .field = PERF_OUTPUT_PERIOD}, }; /* default set to maintain compatibility with current format */ @@ -80,7 +82,8 @@ static struct { .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | - PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, + PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | + PERF_OUTPUT_PERIOD, .invalid_fields = PERF_OUTPUT_TRACE, }, @@ -91,7 +94,8 @@ static struct { .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | - PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, + PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | + PERF_OUTPUT_PERIOD, .invalid_fields = PERF_OUTPUT_TRACE, }, @@ -110,7 +114,8 @@ static struct { .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | - PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, + PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | + PERF_OUTPUT_PERIOD, .invalid_fields = PERF_OUTPUT_TRACE, }, @@ -184,10 +189,6 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", PERF_OUTPUT_IP)) return -EINVAL; - - if (!no_callchain && - !(attr->sample_type & PERF_SAMPLE_CALLCHAIN)) - symbol_conf.use_callchain = false; } if (PRINT_FIELD(ADDR) && @@ -233,6 +234,11 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, PERF_OUTPUT_CPU)) return -EINVAL; + if (PRINT_FIELD(PERIOD) && + perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD", + PERF_OUTPUT_PERIOD)) + return -EINVAL; + return 0; } @@ -290,6 +296,19 @@ static int perf_session__check_output_opt(struct perf_session *session) set_print_ip_opts(&evsel->attr); } + if (!no_callchain) { + bool use_callchain = false; + + evlist__for_each(session->evlist, evsel) { + if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) { + use_callchain = true; + break; + } + } + if (!use_callchain) + symbol_conf.use_callchain = false; + } + /* * set default for tracepoints to print symbols only * if callchains are present @@ -358,27 +377,6 @@ static void print_sample_start(struct perf_sample *sample, } } -static bool is_bts_event(struct perf_event_attr *attr) -{ - return ((attr->type == PERF_TYPE_HARDWARE) && - (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && - (attr->sample_period == 1)); -} - -static bool sample_addr_correlates_sym(struct perf_event_attr *attr) -{ - if ((attr->type == PERF_TYPE_SOFTWARE) && - ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) || - (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) || - (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))) - return true; - - if (is_bts_event(attr)) - return true; - - return false; -} - static void print_sample_addr(union perf_event *event, struct perf_sample *sample, struct machine *machine, @@ -386,24 +384,13 @@ static void print_sample_addr(union perf_event *event, struct perf_event_attr *attr) { struct addr_location al; - u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; printf("%16" PRIx64, sample->addr); if (!sample_addr_correlates_sym(attr)) return; - thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, - sample->addr, &al); - if (!al.map) - thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE, - sample->addr, &al); - - al.cpu = sample->cpu; - al.sym = NULL; - - if (al.map) - al.sym = map__find_symbol(al.map, al.addr, NULL); + perf_event__preprocess_sample_addr(event, sample, machine, thread, &al); if (PRINT_FIELD(SYM)) { printf(" "); @@ -427,25 +414,35 @@ static void print_sample_bts(union perf_event *event, struct addr_location *al) { struct perf_event_attr *attr = &evsel->attr; + bool print_srcline_last = false; /* print branch_from information */ if (PRINT_FIELD(IP)) { - if (!symbol_conf.use_callchain) - printf(" "); - else + unsigned int print_opts = output[attr->type].print_ip_opts; + + if (symbol_conf.use_callchain && sample->callchain) { printf("\n"); - perf_evsel__print_ip(evsel, sample, al, - output[attr->type].print_ip_opts, + } else { + printf(" "); + if (print_opts & PRINT_IP_OPT_SRCLINE) { + print_srcline_last = true; + print_opts &= ~PRINT_IP_OPT_SRCLINE; + } + } + perf_evsel__print_ip(evsel, sample, al, print_opts, PERF_MAX_STACK_DEPTH); } - printf(" => "); - /* print branch_to information */ if (PRINT_FIELD(ADDR) || ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) && - !output[attr->type].user_set)) + !output[attr->type].user_set)) { + printf(" => "); print_sample_addr(event, sample, al->machine, thread, attr); + } + + if (print_srcline_last) + map__fprintf_srcline(al->map, al->addr, "\n ", stdout); printf("\n"); } @@ -461,6 +458,9 @@ static void process_event(union perf_event *event, struct perf_sample *sample, print_sample_start(sample, thread, evsel); + if (PRINT_FIELD(PERIOD)) + printf("%10" PRIu64 " ", sample->period); + if (PRINT_FIELD(EVNAME)) { const char *evname = perf_evsel__name(evsel); printf("%s: ", evname ? evname : "[unknown]"); @@ -498,6 +498,11 @@ static int default_start_script(const char *script __maybe_unused, return 0; } +static int default_flush_script(void) +{ + return 0; +} + static int default_stop_script(void) { return 0; @@ -511,6 +516,7 @@ static int default_generate_script(struct pevent *pevent __maybe_unused, static struct scripting_ops default_scripting_ops = { .start_script = default_start_script, + .flush_script = default_flush_script, .stop_script = default_stop_script, .process_event = process_event, .generate_script = default_generate_script, @@ -526,6 +532,11 @@ static void setup_scripting(void) scripting_ops = &default_scripting_ops; } +static int flush_scripting(void) +{ + return scripting_ops->flush_script(); +} + static int cleanup_scripting(void) { pr_debug("\nperf script stopped\n"); @@ -574,7 +585,6 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused, scripting_ops->process_event(event, sample, evsel, thread, &al); - evsel->hists.stats.total_period += sample->period; return 0; } @@ -1493,12 +1503,13 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) bool show_full_info = false; bool header = false; bool header_only = false; + bool script_started = false; char *rec_script_path = NULL; char *rep_script_path = NULL; struct perf_session *session; char *script_path = NULL; const char **__argv; - int i, j, err; + int i, j, err = 0; struct perf_script script = { .tool = { .sample = process_sample_event, @@ -1510,7 +1521,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) .attr = process_attr, .tracing_data = perf_event__process_tracing_data, .build_id = perf_event__process_build_id, - .ordered_samples = true, + .ordered_events = true, .ordering_requires_timestamps = true, }, }; @@ -1545,7 +1556,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) "comma separated output fields prepend with 'type:'. " "Valid types: hw,sw,trace,raw. " "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," - "addr,symoff", parse_output_fields), + "addr,symoff,period", parse_output_fields), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", @@ -1740,26 +1751,28 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) exit(-1); } - if (symbol__init() < 0) - return -1; if (!script_name) setup_pager(); session = perf_session__new(&file, false, &script.tool); if (session == NULL) - return -ENOMEM; + return -1; if (header || header_only) { perf_session__fprintf_info(session, stdout, show_full_info); if (header_only) - return 0; + goto out_delete; } + if (symbol__init(&session->header.env) < 0) + goto out_delete; + script.session = session; if (cpu_list) { - if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap)) - return -1; + err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap); + if (err < 0) + goto out_delete; } if (!no_callchain) @@ -1774,53 +1787,62 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) if (output_set_by_user()) { fprintf(stderr, "custom fields not supported for generated scripts"); - return -1; + err = -EINVAL; + goto out_delete; } input = open(file.path, O_RDONLY); /* input_name */ if (input < 0) { + err = -errno; perror("failed to open file"); - return -1; + goto out_delete; } err = fstat(input, &perf_stat); if (err < 0) { perror("failed to stat file"); - return -1; + goto out_delete; } if (!perf_stat.st_size) { fprintf(stderr, "zero-sized file, nothing to do!\n"); - return 0; + goto out_delete; } scripting_ops = script_spec__lookup(generate_script_lang); if (!scripting_ops) { fprintf(stderr, "invalid language specifier"); - return -1; + err = -ENOENT; + goto out_delete; } err = scripting_ops->generate_script(session->tevent.pevent, "perf-script"); - goto out; + goto out_delete; } if (script_name) { err = scripting_ops->start_script(script_name, argc, argv); if (err) - goto out; + goto out_delete; pr_debug("perf script started with script %s\n\n", script_name); + script_started = true; } err = perf_session__check_output_opt(session); if (err < 0) - goto out; + goto out_delete; err = __cmd_script(&script); + flush_scripting(); + +out_delete: perf_session__delete(session); - cleanup_scripting(); + + if (script_started) + cleanup_scripting(); out: return err; } diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 65a151e36067..055ce9232c9e 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -43,6 +43,7 @@ #include "perf.h" #include "builtin.h" +#include "util/cgroup.h" #include "util/util.h" #include "util/parse-options.h" #include "util/parse-events.h" @@ -184,7 +185,7 @@ static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel) static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel) { evsel->priv = zalloc(sizeof(struct perf_stat)); - if (evsel == NULL) + if (evsel->priv == NULL) return -ENOMEM; perf_evsel__reset_stat_priv(evsel); return 0; @@ -593,7 +594,7 @@ static int __run_perf_stat(int argc, const char **argv) if (perf_evlist__apply_filters(evsel_list)) { error("failed to set filter with %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, msg, sizeof(msg))); return -1; } @@ -732,7 +733,7 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr) } } -static void nsec_printout(int cpu, int nr, struct perf_evsel *evsel, double avg) +static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) { double msecs = avg / 1e6; const char *fmt_v, *fmt_n; @@ -741,7 +742,7 @@ static void nsec_printout(int cpu, int nr, struct perf_evsel *evsel, double avg) fmt_v = csv_output ? "%.6f%s" : "%18.6f%s"; fmt_n = csv_output ? "%s" : "%-25s"; - aggr_printout(evsel, cpu, nr); + aggr_printout(evsel, id, nr); scnprintf(name, sizeof(name), "%s%s", perf_evsel__name(evsel), csv_output ? "" : " (msec)"); @@ -947,11 +948,12 @@ static void print_ll_cache_misses(int cpu, fprintf(output, " of all LL-cache hits "); } -static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg) +static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) { double total, ratio = 0.0, total2; double sc = evsel->scale; const char *fmt; + int cpu = cpu_map__id_to_cpu(id); if (csv_output) { fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; @@ -962,7 +964,7 @@ static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg) fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s"; } - aggr_printout(evsel, cpu, nr); + aggr_printout(evsel, id, nr); if (aggr_mode == AGGR_GLOBAL) cpu = 0; diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 74db2568b867..35b425b6293f 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -37,6 +37,7 @@ #include "util/svghelper.h" #include "util/tool.h" #include "util/data.h" +#include "util/debug.h" #define SUPPORT_OLD_POWER_EVENTS 1 #define PWR_EVENT_EXIT -1 @@ -60,10 +61,17 @@ struct timechart { tasks_only, with_backtrace, topology; + /* IO related settings */ + u64 io_events; + bool io_only, + skip_eagain; + u64 min_time, + merge_dist; }; struct per_pidcomm; struct cpu_sample; +struct io_sample; /* * Datastructure layout: @@ -84,6 +92,7 @@ struct per_pid { u64 start_time; u64 end_time; u64 total_time; + u64 total_bytes; int display; struct per_pidcomm *all; @@ -97,6 +106,8 @@ struct per_pidcomm { u64 start_time; u64 end_time; u64 total_time; + u64 max_bytes; + u64 total_bytes; int Y; int display; @@ -107,6 +118,7 @@ struct per_pidcomm { char *comm; struct cpu_sample *samples; + struct io_sample *io_samples; }; struct sample_wrapper { @@ -131,6 +143,27 @@ struct cpu_sample { const char *backtrace; }; +enum { + IOTYPE_READ, + IOTYPE_WRITE, + IOTYPE_SYNC, + IOTYPE_TX, + IOTYPE_RX, + IOTYPE_POLL, +}; + +struct io_sample { + struct io_sample *next; + + u64 start_time; + u64 end_time; + u64 bytes; + int type; + int fd; + int err; + int merges; +}; + #define CSTATE 1 #define PSTATE 2 @@ -213,7 +246,7 @@ static void pid_fork(struct timechart *tchart, int pid, int ppid, u64 timestamp) pid_set_comm(tchart, pid, pp->current->comm); p->start_time = timestamp; - if (p->current) { + if (p->current && !p->current->start_time) { p->current->start_time = timestamp; p->current->state_since = timestamp; } @@ -682,6 +715,249 @@ static void end_sample_processing(struct timechart *tchart) } } +static int pid_begin_io_sample(struct timechart *tchart, int pid, int type, + u64 start, int fd) +{ + struct per_pid *p = find_create_pid(tchart, pid); + struct per_pidcomm *c = p->current; + struct io_sample *sample; + struct io_sample *prev; + + if (!c) { + c = zalloc(sizeof(*c)); + if (!c) + return -ENOMEM; + p->current = c; + c->next = p->all; + p->all = c; + } + + prev = c->io_samples; + + if (prev && prev->start_time && !prev->end_time) { + pr_warning("Skip invalid start event: " + "previous event already started!\n"); + + /* remove previous event that has been started, + * we are not sure we will ever get an end for it */ + c->io_samples = prev->next; + free(prev); + return 0; + } + + sample = zalloc(sizeof(*sample)); + if (!sample) + return -ENOMEM; + sample->start_time = start; + sample->type = type; + sample->fd = fd; + sample->next = c->io_samples; + c->io_samples = sample; + + if (c->start_time == 0 || c->start_time > start) + c->start_time = start; + + return 0; +} + +static int pid_end_io_sample(struct timechart *tchart, int pid, int type, + u64 end, long ret) +{ + struct per_pid *p = find_create_pid(tchart, pid); + struct per_pidcomm *c = p->current; + struct io_sample *sample, *prev; + + if (!c) { + pr_warning("Invalid pidcomm!\n"); + return -1; + } + + sample = c->io_samples; + + if (!sample) /* skip partially captured events */ + return 0; + + if (sample->end_time) { + pr_warning("Skip invalid end event: " + "previous event already ended!\n"); + return 0; + } + + if (sample->type != type) { + pr_warning("Skip invalid end event: invalid event type!\n"); + return 0; + } + + sample->end_time = end; + prev = sample->next; + + /* we want to be able to see small and fast transfers, so make them + * at least min_time long, but don't overlap them */ + if (sample->end_time - sample->start_time < tchart->min_time) + sample->end_time = sample->start_time + tchart->min_time; + if (prev && sample->start_time < prev->end_time) { + if (prev->err) /* try to make errors more visible */ + sample->start_time = prev->end_time; + else + prev->end_time = sample->start_time; + } + + if (ret < 0) { + sample->err = ret; + } else if (type == IOTYPE_READ || type == IOTYPE_WRITE || + type == IOTYPE_TX || type == IOTYPE_RX) { + + if ((u64)ret > c->max_bytes) + c->max_bytes = ret; + + c->total_bytes += ret; + p->total_bytes += ret; + sample->bytes = ret; + } + + /* merge two requests to make svg smaller and render-friendly */ + if (prev && + prev->type == sample->type && + prev->err == sample->err && + prev->fd == sample->fd && + prev->end_time + tchart->merge_dist >= sample->start_time) { + + sample->bytes += prev->bytes; + sample->merges += prev->merges + 1; + + sample->start_time = prev->start_time; + sample->next = prev->next; + free(prev); + + if (!sample->err && sample->bytes > c->max_bytes) + c->max_bytes = sample->bytes; + } + + tchart->io_events++; + + return 0; +} + +static int +process_enter_read(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long fd = perf_evsel__intval(evsel, sample, "fd"); + return pid_begin_io_sample(tchart, sample->tid, IOTYPE_READ, + sample->time, fd); +} + +static int +process_exit_read(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long ret = perf_evsel__intval(evsel, sample, "ret"); + return pid_end_io_sample(tchart, sample->tid, IOTYPE_READ, + sample->time, ret); +} + +static int +process_enter_write(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long fd = perf_evsel__intval(evsel, sample, "fd"); + return pid_begin_io_sample(tchart, sample->tid, IOTYPE_WRITE, + sample->time, fd); +} + +static int +process_exit_write(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long ret = perf_evsel__intval(evsel, sample, "ret"); + return pid_end_io_sample(tchart, sample->tid, IOTYPE_WRITE, + sample->time, ret); +} + +static int +process_enter_sync(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long fd = perf_evsel__intval(evsel, sample, "fd"); + return pid_begin_io_sample(tchart, sample->tid, IOTYPE_SYNC, + sample->time, fd); +} + +static int +process_exit_sync(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long ret = perf_evsel__intval(evsel, sample, "ret"); + return pid_end_io_sample(tchart, sample->tid, IOTYPE_SYNC, + sample->time, ret); +} + +static int +process_enter_tx(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long fd = perf_evsel__intval(evsel, sample, "fd"); + return pid_begin_io_sample(tchart, sample->tid, IOTYPE_TX, + sample->time, fd); +} + +static int +process_exit_tx(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long ret = perf_evsel__intval(evsel, sample, "ret"); + return pid_end_io_sample(tchart, sample->tid, IOTYPE_TX, + sample->time, ret); +} + +static int +process_enter_rx(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long fd = perf_evsel__intval(evsel, sample, "fd"); + return pid_begin_io_sample(tchart, sample->tid, IOTYPE_RX, + sample->time, fd); +} + +static int +process_exit_rx(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long ret = perf_evsel__intval(evsel, sample, "ret"); + return pid_end_io_sample(tchart, sample->tid, IOTYPE_RX, + sample->time, ret); +} + +static int +process_enter_poll(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long fd = perf_evsel__intval(evsel, sample, "fd"); + return pid_begin_io_sample(tchart, sample->tid, IOTYPE_POLL, + sample->time, fd); +} + +static int +process_exit_poll(struct timechart *tchart, + struct perf_evsel *evsel, + struct perf_sample *sample) +{ + long ret = perf_evsel__intval(evsel, sample, "ret"); + return pid_end_io_sample(tchart, sample->tid, IOTYPE_POLL, + sample->time, ret); +} + /* * Sort the pid datastructure */ @@ -852,6 +1128,121 @@ static void draw_cpu_usage(struct timechart *tchart) } } +static void draw_io_bars(struct timechart *tchart) +{ + const char *suf; + double bytes; + char comm[256]; + struct per_pid *p; + struct per_pidcomm *c; + struct io_sample *sample; + int Y = 1; + + p = tchart->all_data; + while (p) { + c = p->all; + while (c) { + if (!c->display) { + c->Y = 0; + c = c->next; + continue; + } + + svg_box(Y, c->start_time, c->end_time, "process3"); + sample = c->io_samples; + for (sample = c->io_samples; sample; sample = sample->next) { + double h = (double)sample->bytes / c->max_bytes; + + if (tchart->skip_eagain && + sample->err == -EAGAIN) + continue; + + if (sample->err) + h = 1; + + if (sample->type == IOTYPE_SYNC) + svg_fbox(Y, + sample->start_time, + sample->end_time, + 1, + sample->err ? "error" : "sync", + sample->fd, + sample->err, + sample->merges); + else if (sample->type == IOTYPE_POLL) + svg_fbox(Y, + sample->start_time, + sample->end_time, + 1, + sample->err ? "error" : "poll", + sample->fd, + sample->err, + sample->merges); + else if (sample->type == IOTYPE_READ) + svg_ubox(Y, + sample->start_time, + sample->end_time, + h, + sample->err ? "error" : "disk", + sample->fd, + sample->err, + sample->merges); + else if (sample->type == IOTYPE_WRITE) + svg_lbox(Y, + sample->start_time, + sample->end_time, + h, + sample->err ? "error" : "disk", + sample->fd, + sample->err, + sample->merges); + else if (sample->type == IOTYPE_RX) + svg_ubox(Y, + sample->start_time, + sample->end_time, + h, + sample->err ? "error" : "net", + sample->fd, + sample->err, + sample->merges); + else if (sample->type == IOTYPE_TX) + svg_lbox(Y, + sample->start_time, + sample->end_time, + h, + sample->err ? "error" : "net", + sample->fd, + sample->err, + sample->merges); + } + + suf = ""; + bytes = c->total_bytes; + if (bytes > 1024) { + bytes = bytes / 1024; + suf = "K"; + } + if (bytes > 1024) { + bytes = bytes / 1024; + suf = "M"; + } + if (bytes > 1024) { + bytes = bytes / 1024; + suf = "G"; + } + + + sprintf(comm, "%s:%i (%3.1f %sbytes)", c->comm ?: "", p->pid, bytes, suf); + svg_text(Y, c->start_time, comm); + + c->Y = Y; + Y++; + c = c->next; + } + p = p->next; + } +} + static void draw_process_bars(struct timechart *tchart) { struct per_pid *p; @@ -987,9 +1378,6 @@ static int determine_display_tasks(struct timechart *tchart, u64 threshold) struct per_pidcomm *c; int count = 0; - if (process_filter) - return determine_display_tasks_filtered(tchart); - p = tchart->all_data; while (p) { p->display = 0; @@ -1025,15 +1413,46 @@ static int determine_display_tasks(struct timechart *tchart, u64 threshold) return count; } +static int determine_display_io_tasks(struct timechart *timechart, u64 threshold) +{ + struct per_pid *p; + struct per_pidcomm *c; + int count = 0; + p = timechart->all_data; + while (p) { + /* no exit marker, task kept running to the end */ + if (p->end_time == 0) + p->end_time = timechart->last_time; + + c = p->all; + while (c) { + c->display = 0; + + if (c->total_bytes >= threshold) { + c->display = 1; + count++; + } + + if (c->end_time == 0) + c->end_time = timechart->last_time; + + c = c->next; + } + p = p->next; + } + return count; +} + +#define BYTES_THRESH (1 * 1024 * 1024) #define TIME_THRESH 10000000 static void write_svg_file(struct timechart *tchart, const char *filename) { u64 i; int count; - int thresh = TIME_THRESH; + int thresh = tchart->io_events ? BYTES_THRESH : TIME_THRESH; if (tchart->power_only) tchart->proc_num = 0; @@ -1041,28 +1460,43 @@ static void write_svg_file(struct timechart *tchart, const char *filename) /* We'd like to show at least proc_num tasks; * be less picky if we have fewer */ do { - count = determine_display_tasks(tchart, thresh); + if (process_filter) + count = determine_display_tasks_filtered(tchart); + else if (tchart->io_events) + count = determine_display_io_tasks(tchart, thresh); + else + count = determine_display_tasks(tchart, thresh); thresh /= 10; } while (!process_filter && thresh && count < tchart->proc_num); if (!tchart->proc_num) count = 0; - open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time); + if (tchart->io_events) { + open_svg(filename, 0, count, tchart->first_time, tchart->last_time); + + svg_time_grid(0.5); + svg_io_legenda(); - svg_time_grid(); - svg_legenda(); + draw_io_bars(tchart); + } else { + open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time); + + svg_time_grid(0); - for (i = 0; i < tchart->numcpus; i++) - svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency); + svg_legenda(); - draw_cpu_usage(tchart); - if (tchart->proc_num) - draw_process_bars(tchart); - if (!tchart->tasks_only) - draw_c_p_states(tchart); - if (tchart->proc_num) - draw_wakeups(tchart); + for (i = 0; i < tchart->numcpus; i++) + svg_cpu_box(i, tchart->max_freq, tchart->turbo_frequency); + + draw_cpu_usage(tchart); + if (tchart->proc_num) + draw_process_bars(tchart); + if (!tchart->tasks_only) + draw_c_p_states(tchart); + if (tchart->proc_num) + draw_wakeups(tchart); + } svg_close(); } @@ -1110,6 +1544,56 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name) { "power:power_end", process_sample_power_end }, { "power:power_frequency", process_sample_power_frequency }, #endif + + { "syscalls:sys_enter_read", process_enter_read }, + { "syscalls:sys_enter_pread64", process_enter_read }, + { "syscalls:sys_enter_readv", process_enter_read }, + { "syscalls:sys_enter_preadv", process_enter_read }, + { "syscalls:sys_enter_write", process_enter_write }, + { "syscalls:sys_enter_pwrite64", process_enter_write }, + { "syscalls:sys_enter_writev", process_enter_write }, + { "syscalls:sys_enter_pwritev", process_enter_write }, + { "syscalls:sys_enter_sync", process_enter_sync }, + { "syscalls:sys_enter_sync_file_range", process_enter_sync }, + { "syscalls:sys_enter_fsync", process_enter_sync }, + { "syscalls:sys_enter_msync", process_enter_sync }, + { "syscalls:sys_enter_recvfrom", process_enter_rx }, + { "syscalls:sys_enter_recvmmsg", process_enter_rx }, + { "syscalls:sys_enter_recvmsg", process_enter_rx }, + { "syscalls:sys_enter_sendto", process_enter_tx }, + { "syscalls:sys_enter_sendmsg", process_enter_tx }, + { "syscalls:sys_enter_sendmmsg", process_enter_tx }, + { "syscalls:sys_enter_epoll_pwait", process_enter_poll }, + { "syscalls:sys_enter_epoll_wait", process_enter_poll }, + { "syscalls:sys_enter_poll", process_enter_poll }, + { "syscalls:sys_enter_ppoll", process_enter_poll }, + { "syscalls:sys_enter_pselect6", process_enter_poll }, + { "syscalls:sys_enter_select", process_enter_poll }, + + { "syscalls:sys_exit_read", process_exit_read }, + { "syscalls:sys_exit_pread64", process_exit_read }, + { "syscalls:sys_exit_readv", process_exit_read }, + { "syscalls:sys_exit_preadv", process_exit_read }, + { "syscalls:sys_exit_write", process_exit_write }, + { "syscalls:sys_exit_pwrite64", process_exit_write }, + { "syscalls:sys_exit_writev", process_exit_write }, + { "syscalls:sys_exit_pwritev", process_exit_write }, + { "syscalls:sys_exit_sync", process_exit_sync }, + { "syscalls:sys_exit_sync_file_range", process_exit_sync }, + { "syscalls:sys_exit_fsync", process_exit_sync }, + { "syscalls:sys_exit_msync", process_exit_sync }, + { "syscalls:sys_exit_recvfrom", process_exit_rx }, + { "syscalls:sys_exit_recvmmsg", process_exit_rx }, + { "syscalls:sys_exit_recvmsg", process_exit_rx }, + { "syscalls:sys_exit_sendto", process_exit_tx }, + { "syscalls:sys_exit_sendmsg", process_exit_tx }, + { "syscalls:sys_exit_sendmmsg", process_exit_tx }, + { "syscalls:sys_exit_epoll_pwait", process_exit_poll }, + { "syscalls:sys_exit_epoll_wait", process_exit_poll }, + { "syscalls:sys_exit_poll", process_exit_poll }, + { "syscalls:sys_exit_ppoll", process_exit_poll }, + { "syscalls:sys_exit_pselect6", process_exit_poll }, + { "syscalls:sys_exit_select", process_exit_poll }, }; struct perf_data_file file = { .path = input_name, @@ -1121,7 +1605,9 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name) int ret = -EINVAL; if (session == NULL) - return -ENOMEM; + return -1; + + symbol__init(&session->header.env); (void)perf_header__process_sections(&session->header, perf_data_file__fd(session->file), @@ -1154,6 +1640,139 @@ out_delete: return ret; } +static int timechart__io_record(int argc, const char **argv) +{ + unsigned int rec_argc, i; + const char **rec_argv; + const char **p; + char *filter = NULL; + + const char * const common_args[] = { + "record", "-a", "-R", "-c", "1", + }; + unsigned int common_args_nr = ARRAY_SIZE(common_args); + + const char * const disk_events[] = { + "syscalls:sys_enter_read", + "syscalls:sys_enter_pread64", + "syscalls:sys_enter_readv", + "syscalls:sys_enter_preadv", + "syscalls:sys_enter_write", + "syscalls:sys_enter_pwrite64", + "syscalls:sys_enter_writev", + "syscalls:sys_enter_pwritev", + "syscalls:sys_enter_sync", + "syscalls:sys_enter_sync_file_range", + "syscalls:sys_enter_fsync", + "syscalls:sys_enter_msync", + + "syscalls:sys_exit_read", + "syscalls:sys_exit_pread64", + "syscalls:sys_exit_readv", + "syscalls:sys_exit_preadv", + "syscalls:sys_exit_write", + "syscalls:sys_exit_pwrite64", + "syscalls:sys_exit_writev", + "syscalls:sys_exit_pwritev", + "syscalls:sys_exit_sync", + "syscalls:sys_exit_sync_file_range", + "syscalls:sys_exit_fsync", + "syscalls:sys_exit_msync", + }; + unsigned int disk_events_nr = ARRAY_SIZE(disk_events); + + const char * const net_events[] = { + "syscalls:sys_enter_recvfrom", + "syscalls:sys_enter_recvmmsg", + "syscalls:sys_enter_recvmsg", + "syscalls:sys_enter_sendto", + "syscalls:sys_enter_sendmsg", + "syscalls:sys_enter_sendmmsg", + + "syscalls:sys_exit_recvfrom", + "syscalls:sys_exit_recvmmsg", + "syscalls:sys_exit_recvmsg", + "syscalls:sys_exit_sendto", + "syscalls:sys_exit_sendmsg", + "syscalls:sys_exit_sendmmsg", + }; + unsigned int net_events_nr = ARRAY_SIZE(net_events); + + const char * const poll_events[] = { + "syscalls:sys_enter_epoll_pwait", + "syscalls:sys_enter_epoll_wait", + "syscalls:sys_enter_poll", + "syscalls:sys_enter_ppoll", + "syscalls:sys_enter_pselect6", + "syscalls:sys_enter_select", + + "syscalls:sys_exit_epoll_pwait", + "syscalls:sys_exit_epoll_wait", + "syscalls:sys_exit_poll", + "syscalls:sys_exit_ppoll", + "syscalls:sys_exit_pselect6", + "syscalls:sys_exit_select", + }; + unsigned int poll_events_nr = ARRAY_SIZE(poll_events); + + rec_argc = common_args_nr + + disk_events_nr * 4 + + net_events_nr * 4 + + poll_events_nr * 4 + + argc; + rec_argv = calloc(rec_argc + 1, sizeof(char *)); + + if (rec_argv == NULL) + return -ENOMEM; + + if (asprintf(&filter, "common_pid != %d", getpid()) < 0) + return -ENOMEM; + + p = rec_argv; + for (i = 0; i < common_args_nr; i++) + *p++ = strdup(common_args[i]); + + for (i = 0; i < disk_events_nr; i++) { + if (!is_valid_tracepoint(disk_events[i])) { + rec_argc -= 4; + continue; + } + + *p++ = "-e"; + *p++ = strdup(disk_events[i]); + *p++ = "--filter"; + *p++ = filter; + } + for (i = 0; i < net_events_nr; i++) { + if (!is_valid_tracepoint(net_events[i])) { + rec_argc -= 4; + continue; + } + + *p++ = "-e"; + *p++ = strdup(net_events[i]); + *p++ = "--filter"; + *p++ = filter; + } + for (i = 0; i < poll_events_nr; i++) { + if (!is_valid_tracepoint(poll_events[i])) { + rec_argc -= 4; + continue; + } + + *p++ = "-e"; + *p++ = strdup(poll_events[i]); + *p++ = "--filter"; + *p++ = filter; + } + + for (i = 0; i < (unsigned int)argc; i++) + *p++ = argv[i]; + + return cmd_record(rec_argc, rec_argv, NULL); +} + + static int timechart__record(struct timechart *tchart, int argc, const char **argv) { unsigned int rec_argc, i, j; @@ -1270,6 +1889,30 @@ parse_highlight(const struct option *opt __maybe_unused, const char *arg, return 0; } +static int +parse_time(const struct option *opt, const char *arg, int __maybe_unused unset) +{ + char unit = 'n'; + u64 *value = opt->value; + + if (sscanf(arg, "%" PRIu64 "%cs", value, &unit) > 0) { + switch (unit) { + case 'm': + *value *= 1000000; + break; + case 'u': + *value *= 1000; + break; + case 'n': + break; + default: + return -1; + } + } + + return 0; +} + int cmd_timechart(int argc, const char **argv, const char *prefix __maybe_unused) { @@ -1279,9 +1922,11 @@ int cmd_timechart(int argc, const char **argv, .fork = process_fork_event, .exit = process_exit_event, .sample = process_sample_event, - .ordered_samples = true, + .ordered_events = true, }, .proc_num = 15, + .min_time = 1000000, + .merge_dist = 1000, }; const char *output_name = "output.svg"; const struct option timechart_options[] = { @@ -1303,6 +1948,14 @@ int cmd_timechart(int argc, const char **argv, "min. number of tasks to print"), OPT_BOOLEAN('t', "topology", &tchart.topology, "sort CPUs according to topology"), + OPT_BOOLEAN(0, "io-skip-eagain", &tchart.skip_eagain, + "skip EAGAIN errors"), + OPT_CALLBACK(0, "io-min-time", &tchart.min_time, "time", + "all IO faster than min-time will visually appear longer", + parse_time), + OPT_CALLBACK(0, "io-merge-dist", &tchart.merge_dist, "time", + "merge events that are merge-dist us apart", + parse_time), OPT_END() }; const char * const timechart_usage[] = { @@ -1314,6 +1967,8 @@ int cmd_timechart(int argc, const char **argv, OPT_BOOLEAN('P', "power-only", &tchart.power_only, "output power data only"), OPT_BOOLEAN('T', "tasks-only", &tchart.tasks_only, "output processes data only"), + OPT_BOOLEAN('I', "io-only", &tchart.io_only, + "record only IO data"), OPT_BOOLEAN('g', "callchain", &tchart.with_backtrace, "record callchain"), OPT_END() }; @@ -1329,8 +1984,6 @@ int cmd_timechart(int argc, const char **argv, return -1; } - symbol__init(); - if (argc && !strncmp(argv[0], "rec", 3)) { argc = parse_options(argc, argv, record_options, record_usage, PARSE_OPT_STOP_AT_NON_OPTION); @@ -1340,7 +1993,10 @@ int cmd_timechart(int argc, const char **argv, return -1; } - return timechart__record(&tchart, argc, argv); + if (tchart.io_only) + return timechart__io_record(argc, argv); + else + return timechart__record(&tchart, argc, argv); } else if (argc) usage_with_options(timechart_usage, timechart_options); diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 377971dc89a3..0aa7747ff139 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -59,7 +59,7 @@ #include <sys/syscall.h> #include <sys/ioctl.h> -#include <sys/poll.h> +#include <poll.h> #include <sys/prctl.h> #include <sys/wait.h> #include <sys/uio.h> @@ -251,6 +251,7 @@ static void perf_top__print_sym_table(struct perf_top *top) char bf[160]; int printed = 0; const int win_width = top->winsize.ws_col - 1; + struct hists *hists = evsel__hists(top->sym_evsel); puts(CONSOLE_CLEAR); @@ -261,13 +262,13 @@ static void perf_top__print_sym_table(struct perf_top *top) printf("%-*.*s\n", win_width, win_width, graph_dotted_line); - if (top->sym_evsel->hists.stats.nr_lost_warned != - top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { - top->sym_evsel->hists.stats.nr_lost_warned = - top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; + if (hists->stats.nr_lost_warned != + hists->stats.nr_events[PERF_RECORD_LOST]) { + hists->stats.nr_lost_warned = + hists->stats.nr_events[PERF_RECORD_LOST]; color_fprintf(stdout, PERF_COLOR_RED, "WARNING: LOST %d chunks, Check IO/CPU overload", - top->sym_evsel->hists.stats.nr_lost_warned); + hists->stats.nr_lost_warned); ++printed; } @@ -276,16 +277,19 @@ static void perf_top__print_sym_table(struct perf_top *top) return; } - hists__collapse_resort(&top->sym_evsel->hists, NULL); - hists__output_resort(&top->sym_evsel->hists); - hists__decay_entries(&top->sym_evsel->hists, - top->hide_user_symbols, - top->hide_kernel_symbols); - hists__output_recalc_col_len(&top->sym_evsel->hists, - top->print_entries - printed); + if (top->zero) { + hists__delete_entries(hists); + } else { + hists__decay_entries(hists, top->hide_user_symbols, + top->hide_kernel_symbols); + } + + hists__collapse_resort(hists, NULL); + hists__output_resort(hists); + + hists__output_recalc_col_len(hists, top->print_entries - printed); putchar('\n'); - hists__fprintf(&top->sym_evsel->hists, false, - top->print_entries - printed, win_width, + hists__fprintf(hists, false, top->print_entries - printed, win_width, top->min_percent, stdout); } @@ -328,6 +332,7 @@ static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) { char *buf = malloc(0), *p; struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; + struct hists *hists = evsel__hists(top->sym_evsel); struct rb_node *next; size_t dummy = 0; @@ -345,7 +350,7 @@ static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) if (p) *p = 0; - next = rb_first(&top->sym_evsel->hists.entries); + next = rb_first(&hists->entries); while (next) { n = rb_entry(next, struct hist_entry, rb_node); if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { @@ -427,18 +432,13 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c) if (!perf_top__key_mapped(top, c)) { struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; - struct termios tc, save; + struct termios save; perf_top__print_mapped_keys(top); fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); fflush(stdout); - tcgetattr(0, &save); - tc = save; - tc.c_lflag &= ~(ICANON | ECHO); - tc.c_cc[VMIN] = 0; - tc.c_cc[VTIME] = 0; - tcsetattr(0, TCSANOW, &tc); + set_term_quiet_input(&save); poll(&stdin_poll, 1, -1); c = getc(stdin); @@ -537,16 +537,24 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c) static void perf_top__sort_new_samples(void *arg) { struct perf_top *t = arg; + struct hists *hists; + perf_top__reset_sample_counters(t); if (t->evlist->selected != NULL) t->sym_evsel = t->evlist->selected; - hists__collapse_resort(&t->sym_evsel->hists, NULL); - hists__output_resort(&t->sym_evsel->hists); - hists__decay_entries(&t->sym_evsel->hists, - t->hide_user_symbols, - t->hide_kernel_symbols); + hists = evsel__hists(t->sym_evsel); + + if (t->zero) { + hists__delete_entries(hists); + } else { + hists__decay_entries(hists, t->hide_user_symbols, + t->hide_kernel_symbols); + } + + hists__collapse_resort(hists, NULL); + hists__output_resort(hists); } static void *display_thread_tui(void *arg) @@ -567,8 +575,10 @@ static void *display_thread_tui(void *arg) * Zooming in/out UIDs. For now juse use whatever the user passed * via --uid. */ - evlist__for_each(top->evlist, pos) - pos->hists.uid_filter_str = top->record_opts.target.uid_str; + evlist__for_each(top->evlist, pos) { + struct hists *hists = evsel__hists(pos); + hists->uid_filter_str = top->record_opts.target.uid_str; + } perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, &top->session->header.env); @@ -577,23 +587,32 @@ static void *display_thread_tui(void *arg) return NULL; } +static void display_sig(int sig __maybe_unused) +{ + done = 1; +} + +static void display_setup_sig(void) +{ + signal(SIGSEGV, display_sig); + signal(SIGFPE, display_sig); + signal(SIGINT, display_sig); + signal(SIGQUIT, display_sig); + signal(SIGTERM, display_sig); +} + static void *display_thread(void *arg) { struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; - struct termios tc, save; + struct termios save; struct perf_top *top = arg; int delay_msecs, c; - tcgetattr(0, &save); - tc = save; - tc.c_lflag &= ~(ICANON | ECHO); - tc.c_cc[VMIN] = 0; - tc.c_cc[VTIME] = 0; - + display_setup_sig(); pthread__unblock_sigwinch(); repeat: delay_msecs = top->delay_secs * 1000; - tcsetattr(0, TCSANOW, &tc); + set_term_quiet_input(&save); /* trash return*/ getc(stdin); @@ -620,13 +639,16 @@ repeat: } } + tcsetattr(0, TCSAFLUSH, &save); return NULL; } -static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) +static int symbol_filter(struct map *map, struct symbol *sym) { const char *name = sym->name; + if (!map->dso->kernel) + return 0; /* * ppc64 uses function descriptors and appends a '.' to the * start of every instruction address. Remove it. @@ -750,6 +772,7 @@ static void perf_event__process_sample(struct perf_tool *tool, } if (al.sym == NULL || !al.sym->ignore) { + struct hists *hists = evsel__hists(evsel); struct hist_entry_iter iter = { .add_entry_cb = hist_iter__top_callback, }; @@ -759,14 +782,14 @@ static void perf_event__process_sample(struct perf_tool *tool, else iter.ops = &hist_iter_normal; - pthread_mutex_lock(&evsel->hists.lock); + pthread_mutex_lock(&hists->lock); err = hist_entry_iter__add(&iter, &al, evsel, sample, top->max_stack, top); if (err < 0) pr_err("Problem incrementing symbol period, skipping event\n"); - pthread_mutex_unlock(&evsel->hists.lock); + pthread_mutex_unlock(&hists->lock); } return; @@ -831,7 +854,7 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx) perf_event__process_sample(&top->tool, event, evsel, &sample, machine); } else if (event->header.type < PERF_RECORD_MAX) { - hists__inc_nr_events(&evsel->hists, event->header.type); + hists__inc_nr_events(evsel__hists(evsel), event->header.type); machine__process_event(machine, event, &sample); } else ++session->stats.nr_unknown_events; @@ -876,7 +899,7 @@ try_again: if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { ui__error("Failed to mmap with %d (%s)\n", - errno, strerror(errno)); + errno, strerror_r(errno, msg, sizeof(msg))); goto out_err; } @@ -911,7 +934,7 @@ static int __cmd_top(struct perf_top *top) top->session = perf_session__new(NULL, false, NULL); if (top->session == NULL) - return -ENOMEM; + return -1; machines__set_symbol_filter(&top->session->machines, symbol_filter); @@ -946,7 +969,7 @@ static int __cmd_top(struct perf_top *top) perf_evlist__enable(top->evlist); /* Wait for a minimal set of events before starting the snapshot */ - poll(top->evlist->pollfd, top->evlist->nr_fds, 100); + perf_evlist__poll(top->evlist, 100); perf_top__mmap_read(top); @@ -963,7 +986,7 @@ static int __cmd_top(struct perf_top *top) param.sched_priority = top->realtime_prio; if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { ui__error("Could not set realtime priority.\n"); - goto out_delete; + goto out_join; } } @@ -973,10 +996,12 @@ static int __cmd_top(struct perf_top *top) perf_top__mmap_read(top); if (hits == top->samples) - ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); + ret = perf_evlist__poll(top->evlist, 100); } ret = 0; +out_join: + pthread_join(thread, NULL); out_delete: perf_session__delete(top->session); top->session = NULL; @@ -1000,10 +1025,8 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset) static int perf_top_config(const char *var, const char *value, void *cb) { - struct perf_top *top = cb; - if (!strcmp(var, "top.call-graph")) - return record_parse_callchain(value, &top->record_opts); + var = "call-graph.record-mode"; /* fall-through */ if (!strcmp(var, "top.children")) { symbol_conf.cumulate_callchain = perf_config_bool(var, value); return 0; @@ -1024,7 +1047,6 @@ parse_percent_limit(const struct option *opt, const char *arg, int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) { - int status = -1; char errbuf[BUFSIZ]; struct perf_top top = { .count_filter = 5, @@ -1122,6 +1144,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) "Interleave source code with assembly code (default)"), OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, "Display raw encoding of assembly instructions (default)"), + OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, + "Enable kernel symbol demangling"), OPT_STRING(0, "objdump", &objdump_path, "path", "objdump binary to use for disassembly and annotations"), OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", @@ -1131,12 +1155,19 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) "Don't show entries under that percent", parse_percent_limit), OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", "How to display percentage of filtered entries", parse_filter_percentage), + OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, + "width[,width...]", + "don't try to adjust column width, use these fixed values"), OPT_END() }; const char * const top_usage[] = { "perf top [<options>]", NULL }; + int status = hists__init(); + + if (status < 0) + return status; top.evlist = perf_evlist__new(); if (top.evlist == NULL) @@ -1217,7 +1248,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) symbol_conf.priv_size = sizeof(struct annotation); symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); - if (symbol__init() < 0) + if (symbol__init(NULL) < 0) return -1; sort__setup_elide(stdout); diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index f954c26de231..fb126459b134 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -402,6 +402,31 @@ static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags +static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, + struct syscall_arg *arg) +{ + int printed = 0, flags = arg->val; + +#define P_MREMAP_FLAG(n) \ + if (flags & MREMAP_##n) { \ + printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ + flags &= ~MREMAP_##n; \ + } + + P_MREMAP_FLAG(MAYMOVE); +#ifdef MREMAP_FIXED + P_MREMAP_FLAG(FIXED); +#endif +#undef P_MREMAP_FLAG + + if (flags) + printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); + + return printed; +} + +#define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags + static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size, struct syscall_arg *arg) { @@ -1004,6 +1029,7 @@ static struct syscall_fmt { [2] = SCA_MMAP_PROT, /* prot */ }, }, { .name = "mremap", .hexret = true, .arg_scnprintf = { [0] = SCA_HEX, /* addr */ + [3] = SCA_MREMAP_FLAGS, /* flags */ [4] = SCA_HEX, /* new_addr */ }, }, { .name = "munlock", .errmsg = true, .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, @@ -1108,6 +1134,7 @@ struct syscall { struct event_format *tp_format; const char *name; bool filtered; + bool is_exit; struct syscall_fmt *fmt; size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg); void **arg_parm; @@ -1132,6 +1159,7 @@ struct thread_trace { u64 exit_time; bool entry_pending; unsigned long nr_events; + unsigned long pfmaj, pfmin; char *entry_str; double runtime_ms; struct { @@ -1161,13 +1189,13 @@ static struct thread_trace *thread__trace(struct thread *thread, FILE *fp) if (thread == NULL) goto fail; - if (thread->priv == NULL) - thread->priv = thread_trace__new(); + if (thread__priv(thread) == NULL) + thread__set_priv(thread, thread_trace__new()); - if (thread->priv == NULL) + if (thread__priv(thread) == NULL) goto fail; - ttrace = thread->priv; + ttrace = thread__priv(thread); ++ttrace->nr_events; return ttrace; @@ -1177,6 +1205,9 @@ fail: return NULL; } +#define TRACE_PFMAJ (1 << 0) +#define TRACE_PFMIN (1 << 1) + struct trace { struct perf_tool tool; struct { @@ -1211,11 +1242,13 @@ struct trace { bool summary_only; bool show_comm; bool show_tool_stats; + bool trace_syscalls; + int trace_pgfaults; }; static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname) { - struct thread_trace *ttrace = thread->priv; + struct thread_trace *ttrace = thread__priv(thread); if (fd > ttrace->paths.max) { char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *)); @@ -1268,7 +1301,7 @@ static int thread__read_fd_path(struct thread *thread, int fd) static const char *thread__fd_path(struct thread *thread, int fd, struct trace *trace) { - struct thread_trace *ttrace = thread->priv; + struct thread_trace *ttrace = thread__priv(thread); if (ttrace == NULL) return NULL; @@ -1276,11 +1309,11 @@ static const char *thread__fd_path(struct thread *thread, int fd, if (fd < 0) return NULL; - if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) + if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL)) { if (!trace->live) return NULL; ++trace->stats.proc_getname; - if (thread__read_fd_path(thread, fd)) { + if (thread__read_fd_path(thread, fd)) return NULL; } @@ -1305,7 +1338,7 @@ static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size, { int fd = arg->val; size_t printed = syscall_arg__scnprintf_fd(bf, size, arg); - struct thread_trace *ttrace = arg->thread->priv; + struct thread_trace *ttrace = thread__priv(arg->thread); if (ttrace && fd >= 0 && fd <= ttrace->paths.max) zfree(&ttrace->paths.table[fd]); @@ -1378,7 +1411,7 @@ static int trace__tool_process(struct perf_tool *tool, static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) { - int err = symbol__init(); + int err = symbol__init(NULL); if (err) return err; @@ -1473,6 +1506,8 @@ static int trace__read_syscall_info(struct trace *trace, int id) if (sc->tp_format == NULL) return -1; + sc->is_exit = !strcmp(name, "exit_group") || !strcmp(name, "exit"); + return syscall__set_arg_fmts(sc); } @@ -1535,6 +1570,7 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size, } typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel, + union perf_event *event, struct perf_sample *sample); static struct syscall *trace__syscall_info(struct trace *trace, @@ -1607,6 +1643,7 @@ static void thread__update_stats(struct thread_trace *ttrace, } static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, + union perf_event *event __maybe_unused, struct perf_sample *sample) { char *msg; @@ -1629,7 +1666,6 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, return -1; args = perf_evsel__sc_tp_ptr(evsel, args, sample); - ttrace = thread->priv; if (ttrace->entry_str == NULL) { ttrace->entry_str = malloc(1024); @@ -1644,7 +1680,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed, args, trace, thread); - if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) { + if (sc->is_exit) { if (!trace->duration_filter && !trace->summary_only) { trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output); fprintf(trace->output, "%-70s\n", ttrace->entry_str); @@ -1656,9 +1692,10 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel, } static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, + union perf_event *event __maybe_unused, struct perf_sample *sample) { - int ret; + long ret; u64 duration = 0; struct thread *thread; int id = perf_evsel__sc_tp_uint(evsel, id, sample); @@ -1687,8 +1724,6 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, ++trace->stats.vfs_getname; } - ttrace = thread->priv; - ttrace->exit_time = sample->time; if (ttrace->entry_time) { @@ -1713,9 +1748,9 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel, if (sc->fmt == NULL) { signed_print: - fprintf(trace->output, ") = %d", ret); + fprintf(trace->output, ") = %ld", ret); } else if (ret < 0 && sc->fmt->errmsg) { - char bf[256]; + char bf[STRERR_BUFSIZE]; const char *emsg = strerror_r(-ret, bf, sizeof(bf)), *e = audit_errno_to_name(-ret); @@ -1723,7 +1758,7 @@ signed_print: } else if (ret == 0 && sc->fmt->timeout) fprintf(trace->output, ") = 0 Timeout"); else if (sc->fmt->hexret) - fprintf(trace->output, ") = %#x", ret); + fprintf(trace->output, ") = %#lx", ret); else goto signed_print; @@ -1735,6 +1770,7 @@ out: } static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel, + union perf_event *event __maybe_unused, struct perf_sample *sample) { trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname"); @@ -1742,6 +1778,7 @@ static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel, } static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel, + union perf_event *event __maybe_unused, struct perf_sample *sample) { u64 runtime = perf_evsel__intval(evsel, sample, "runtime"); @@ -1768,6 +1805,80 @@ out_dump: return 0; } +static void print_location(FILE *f, struct perf_sample *sample, + struct addr_location *al, + bool print_dso, bool print_sym) +{ + + if ((verbose || print_dso) && al->map) + fprintf(f, "%s@", al->map->dso->long_name); + + if ((verbose || print_sym) && al->sym) + fprintf(f, "%s+0x%" PRIx64, al->sym->name, + al->addr - al->sym->start); + else if (al->map) + fprintf(f, "0x%" PRIx64, al->addr); + else + fprintf(f, "0x%" PRIx64, sample->addr); +} + +static int trace__pgfault(struct trace *trace, + struct perf_evsel *evsel, + union perf_event *event, + struct perf_sample *sample) +{ + struct thread *thread; + u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + struct addr_location al; + char map_type = 'd'; + struct thread_trace *ttrace; + + thread = machine__findnew_thread(trace->host, sample->pid, sample->tid); + ttrace = thread__trace(thread, trace->output); + if (ttrace == NULL) + return -1; + + if (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ) + ttrace->pfmaj++; + else + ttrace->pfmin++; + + if (trace->summary_only) + return 0; + + thread__find_addr_location(thread, trace->host, cpumode, MAP__FUNCTION, + sample->ip, &al); + + trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output); + + fprintf(trace->output, "%sfault [", + evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ ? + "maj" : "min"); + + print_location(trace->output, sample, &al, false, true); + + fprintf(trace->output, "] => "); + + thread__find_addr_location(thread, trace->host, cpumode, MAP__VARIABLE, + sample->addr, &al); + + if (!al.map) { + thread__find_addr_location(thread, trace->host, cpumode, + MAP__FUNCTION, sample->addr, &al); + + if (al.map) + map_type = 'x'; + else + map_type = '?'; + } + + print_location(trace->output, sample, &al, true, false); + + fprintf(trace->output, " (%c%c)\n", map_type, al.level); + + return 0; +} + static bool skip_sample(struct trace *trace, struct perf_sample *sample) { if ((trace->pid_list && intlist__find(trace->pid_list, sample->pid)) || @@ -1781,7 +1892,7 @@ static bool skip_sample(struct trace *trace, struct perf_sample *sample) } static int trace__process_sample(struct perf_tool *tool, - union perf_event *event __maybe_unused, + union perf_event *event, struct perf_sample *sample, struct perf_evsel *evsel, struct machine *machine __maybe_unused) @@ -1799,7 +1910,7 @@ static int trace__process_sample(struct perf_tool *tool, if (handler) { ++trace->nr_events; - handler(trace, evsel, sample); + handler(trace, evsel, event, sample); } return err; @@ -1826,7 +1937,7 @@ static int parse_target_str(struct trace *trace) return 0; } -static int trace__record(int argc, const char **argv) +static int trace__record(struct trace *trace, int argc, const char **argv) { unsigned int rec_argc, i, j; const char **rec_argv; @@ -1835,34 +1946,54 @@ static int trace__record(int argc, const char **argv) "-R", "-m", "1024", "-c", "1", - "-e", }; + const char * const sc_args[] = { "-e", }; + unsigned int sc_args_nr = ARRAY_SIZE(sc_args); + const char * const majpf_args[] = { "-e", "major-faults" }; + unsigned int majpf_args_nr = ARRAY_SIZE(majpf_args); + const char * const minpf_args[] = { "-e", "minor-faults" }; + unsigned int minpf_args_nr = ARRAY_SIZE(minpf_args); + /* +1 is for the event string below */ - rec_argc = ARRAY_SIZE(record_args) + 1 + argc; + rec_argc = ARRAY_SIZE(record_args) + sc_args_nr + 1 + + majpf_args_nr + minpf_args_nr + argc; rec_argv = calloc(rec_argc + 1, sizeof(char *)); if (rec_argv == NULL) return -ENOMEM; + j = 0; for (i = 0; i < ARRAY_SIZE(record_args); i++) - rec_argv[i] = record_args[i]; - - /* event string may be different for older kernels - e.g., RHEL6 */ - if (is_valid_tracepoint("raw_syscalls:sys_enter")) - rec_argv[i] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; - else if (is_valid_tracepoint("syscalls:sys_enter")) - rec_argv[i] = "syscalls:sys_enter,syscalls:sys_exit"; - else { - pr_err("Neither raw_syscalls nor syscalls events exist.\n"); - return -1; + rec_argv[j++] = record_args[i]; + + if (trace->trace_syscalls) { + for (i = 0; i < sc_args_nr; i++) + rec_argv[j++] = sc_args[i]; + + /* event string may be different for older kernels - e.g., RHEL6 */ + if (is_valid_tracepoint("raw_syscalls:sys_enter")) + rec_argv[j++] = "raw_syscalls:sys_enter,raw_syscalls:sys_exit"; + else if (is_valid_tracepoint("syscalls:sys_enter")) + rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit"; + else { + pr_err("Neither raw_syscalls nor syscalls events exist.\n"); + return -1; + } } - i++; - for (j = 0; j < (unsigned int)argc; j++, i++) - rec_argv[i] = argv[j]; + if (trace->trace_pgfaults & TRACE_PFMAJ) + for (i = 0; i < majpf_args_nr; i++) + rec_argv[j++] = majpf_args[i]; - return cmd_record(i, rec_argv, NULL); + if (trace->trace_pgfaults & TRACE_PFMIN) + for (i = 0; i < minpf_args_nr; i++) + rec_argv[j++] = minpf_args[i]; + + for (i = 0; i < (unsigned int)argc; i++) + rec_argv[j++] = argv[i]; + + return cmd_record(j, rec_argv, NULL); } static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); @@ -1882,6 +2013,30 @@ static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist) perf_evlist__add(evlist, evsel); } +static int perf_evlist__add_pgfault(struct perf_evlist *evlist, + u64 config) +{ + struct perf_evsel *evsel; + struct perf_event_attr attr = { + .type = PERF_TYPE_SOFTWARE, + .mmap_data = 1, + }; + + attr.config = config; + attr.sample_period = 1; + + event_attr_init(&attr); + + evsel = perf_evsel__new(&attr); + if (!evsel) + return -ENOMEM; + + evsel->handler = trace__pgfault; + perf_evlist__add(evlist, evsel); + + return 0; +} + static int trace__run(struct trace *trace, int argc, const char **argv) { struct perf_evlist *evlist = perf_evlist__new(); @@ -1889,6 +2044,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv) int err = -1, i; unsigned long before; const bool forks = argc > 0; + bool draining = false; + char sbuf[STRERR_BUFSIZE]; trace->live = true; @@ -1897,10 +2054,21 @@ static int trace__run(struct trace *trace, int argc, const char **argv) goto out; } - if (perf_evlist__add_syscall_newtp(evlist, trace__sys_enter, trace__sys_exit)) + if (trace->trace_syscalls && + perf_evlist__add_syscall_newtp(evlist, trace__sys_enter, + trace__sys_exit)) + goto out_error_tp; + + if (trace->trace_syscalls) + perf_evlist__add_vfs_getname(evlist); + + if ((trace->trace_pgfaults & TRACE_PFMAJ) && + perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) goto out_error_tp; - perf_evlist__add_vfs_getname(evlist); + if ((trace->trace_pgfaults & TRACE_PFMIN) && + perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN)) + goto out_error_tp; if (trace->sched && perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime", @@ -1939,7 +2107,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv) err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false); if (err < 0) { - fprintf(trace->output, "Couldn't mmap the events: %s\n", strerror(errno)); + fprintf(trace->output, "Couldn't mmap the events: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -1982,7 +2151,8 @@ again: goto next_event; } - if (sample.raw_data == NULL) { + if (evsel->attr.type == PERF_TYPE_TRACEPOINT && + sample.raw_data == NULL) { fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n", perf_evsel__name(evsel), sample.tid, sample.cpu, sample.raw_size); @@ -1990,7 +2160,7 @@ again: } handler = evsel->handler; - handler(trace, evsel, &sample); + handler(trace, evsel, event, &sample); next_event: perf_evlist__mmap_consume(evlist, i); @@ -2002,8 +2172,12 @@ next_event: if (trace->nr_events == before) { int timeout = done ? 100 : -1; - if (poll(evlist->pollfd, evlist->nr_fds, timeout) > 0) + if (!draining && perf_evlist__poll(evlist, timeout) > 0) { + if (perf_evlist__filter_pollfd(evlist, POLLERR | POLLHUP) == 0) + draining = true; + goto again; + } } else { goto again; } @@ -2068,18 +2242,18 @@ static int trace__replay(struct trace *trace) trace->tool.tracing_data = perf_event__process_tracing_data; trace->tool.build_id = perf_event__process_build_id; - trace->tool.ordered_samples = true; + trace->tool.ordered_events = true; trace->tool.ordering_requires_timestamps = true; /* add tid to output */ trace->multiple_threads = true; - if (symbol__init() < 0) - return -1; - session = perf_session__new(&file, false, &trace->tool); if (session == NULL) - return -ENOMEM; + return -1; + + if (symbol__init(&session->header.env) < 0) + goto out; trace->host = &session->machines.host; @@ -2093,13 +2267,10 @@ static int trace__replay(struct trace *trace) if (evsel == NULL) evsel = perf_evlist__find_tracepoint_by_name(session->evlist, "syscalls:sys_enter"); - if (evsel == NULL) { - pr_err("Data file does not have raw_syscalls:sys_enter event\n"); - goto out; - } - if (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 || - perf_evsel__init_sc_tp_ptr_field(evsel, args)) { + if (evsel && + (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 || + perf_evsel__init_sc_tp_ptr_field(evsel, args))) { pr_err("Error during initialize raw_syscalls:sys_enter event\n"); goto out; } @@ -2109,15 +2280,19 @@ static int trace__replay(struct trace *trace) if (evsel == NULL) evsel = perf_evlist__find_tracepoint_by_name(session->evlist, "syscalls:sys_exit"); - if (evsel == NULL) { - pr_err("Data file does not have raw_syscalls:sys_exit event\n"); + if (evsel && + (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 || + perf_evsel__init_sc_tp_uint_field(evsel, ret))) { + pr_err("Error during initialize raw_syscalls:sys_exit event\n"); goto out; } - if (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 || - perf_evsel__init_sc_tp_uint_field(evsel, ret)) { - pr_err("Error during initialize raw_syscalls:sys_exit event\n"); - goto out; + evlist__for_each(session->evlist, evsel) { + if (evsel->attr.type == PERF_TYPE_SOFTWARE && + (evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MAJ || + evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS_MIN || + evsel->attr.config == PERF_COUNT_SW_PAGE_FAULTS)) + evsel->handler = trace__pgfault; } err = parse_target_str(trace); @@ -2206,7 +2381,7 @@ static int trace__fprintf_one_thread(struct thread *thread, void *priv) FILE *fp = data->fp; size_t printed = data->printed; struct trace *trace = data->trace; - struct thread_trace *ttrace = thread->priv; + struct thread_trace *ttrace = thread__priv(thread); double ratio; if (ttrace == NULL) @@ -2217,6 +2392,10 @@ static int trace__fprintf_one_thread(struct thread *thread, void *priv) printed += fprintf(fp, " %s (%d), ", thread__comm_str(thread), thread->tid); printed += fprintf(fp, "%lu events, ", ttrace->nr_events); printed += fprintf(fp, "%.1f%%", ratio); + if (ttrace->pfmaj) + printed += fprintf(fp, ", %lu majfaults", ttrace->pfmaj); + if (ttrace->pfmin) + printed += fprintf(fp, ", %lu minfaults", ttrace->pfmin); printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms); printed += thread__dump_stats(ttrace, trace, fp); @@ -2264,6 +2443,23 @@ static int trace__open_output(struct trace *trace, const char *filename) return trace->output == NULL ? -errno : 0; } +static int parse_pagefaults(const struct option *opt, const char *str, + int unset __maybe_unused) +{ + int *trace_pgfaults = opt->value; + + if (strcmp(str, "all") == 0) + *trace_pgfaults |= TRACE_PFMAJ | TRACE_PFMIN; + else if (strcmp(str, "maj") == 0) + *trace_pgfaults |= TRACE_PFMAJ; + else if (strcmp(str, "min") == 0) + *trace_pgfaults |= TRACE_PFMIN; + else + return -1; + + return 0; +} + int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) { const char * const trace_usage[] = { @@ -2293,6 +2489,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) }, .output = stdout, .show_comm = true, + .trace_syscalls = true, }; const char *output_name = NULL; const char *ev_qualifier_str = NULL; @@ -2330,20 +2527,34 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused) "Show only syscall summary with statistics"), OPT_BOOLEAN('S', "with-summary", &trace.summary, "Show all syscalls and summary with statistics"), + OPT_CALLBACK_DEFAULT('F', "pf", &trace.trace_pgfaults, "all|maj|min", + "Trace pagefaults", parse_pagefaults, "maj"), + OPT_BOOLEAN(0, "syscalls", &trace.trace_syscalls, "Trace syscalls"), OPT_END() }; int err; char bf[BUFSIZ]; - if ((argc > 1) && (strcmp(argv[1], "record") == 0)) - return trace__record(argc-2, &argv[2]); + argc = parse_options(argc, argv, trace_options, trace_usage, + PARSE_OPT_STOP_AT_NON_OPTION); + + if (trace.trace_pgfaults) { + trace.opts.sample_address = true; + trace.opts.sample_time = true; + } - argc = parse_options(argc, argv, trace_options, trace_usage, 0); + if ((argc >= 1) && (strcmp(argv[0], "record") == 0)) + return trace__record(&trace, argc-1, &argv[1]); /* summary_only implies summary option, but don't overwrite summary if set */ if (trace.summary_only) trace.summary = trace.summary_only; + if (!trace.trace_syscalls && !trace.trace_pgfaults) { + pr_err("Please specify something to trace.\n"); + return -1; + } + if (output_name != NULL) { err = trace__open_output(&trace, output_name); if (err < 0) { diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index f30ac5e5d271..58f609198c6d 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -116,6 +116,29 @@ ifdef PARSER_DEBUG CFLAGS += -DPARSER_DEBUG endif +ifndef NO_LIBPYTHON + # Try different combinations to accommodate systems that only have + # python[2][-config] in weird combinations but always preferring + # python2 and python2-config as per pep-0394. If we catch a + # python[-config] in version 3, the version check will kill it. + PYTHON2 := $(if $(call get-executable,python2),python2,python) + override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2)) + PYTHON2_CONFIG := \ + $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config) + override PYTHON_CONFIG := \ + $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG)) + + PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG)) + + PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null) + PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null) + + FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS) + FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS) + FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS) + FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS) +endif + CFLAGS += -fno-omit-frame-pointer CFLAGS += -ggdb3 CFLAGS += -funwind-tables @@ -160,6 +183,7 @@ CORE_FEATURE_TESTS = \ backtrace \ dwarf \ fortify-source \ + sync-compare-and-swap \ glibc \ gtk2 \ gtk2-infobar \ @@ -195,6 +219,7 @@ LIB_FEATURE_TESTS = \ VF_FEATURE_TESTS = \ backtrace \ fortify-source \ + sync-compare-and-swap \ gtk2-infobar \ libelf-getphdrnum \ libelf-mmap \ @@ -268,6 +293,10 @@ CFLAGS += -I$(LIB_INCLUDE) CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE +ifeq ($(feature-sync-compare-and-swap), 1) + CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT +endif + ifndef NO_BIONIC $(call feature_check,bionic) ifeq ($(feature-bionic), 1) @@ -345,6 +374,12 @@ ifndef NO_LIBELF endif # NO_DWARF endif # NO_LIBELF +ifeq ($(ARCH),powerpc) + ifndef NO_DWARF + CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX + endif +endif + ifndef NO_LIBUNWIND ifneq ($(feature-libunwind), 1) msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR); @@ -472,21 +507,14 @@ define disable-python_code NO_LIBPYTHON := 1 endef -override PYTHON := \ - $(call get-executable-or-default,PYTHON,python) - -ifndef PYTHON - $(call disable-python,python interpreter) +ifdef NO_LIBPYTHON + $(call disable-python) else - PYTHON_WORD := $(call shell-wordify,$(PYTHON)) - - ifdef NO_LIBPYTHON - $(call disable-python) + ifndef PYTHON + $(call disable-python,python interpreter) else - - override PYTHON_CONFIG := \ - $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config) + PYTHON_WORD := $(call shell-wordify,$(PYTHON)) ifndef PYTHON_CONFIG $(call disable-python,python-config tool) @@ -590,6 +618,10 @@ ifndef NO_LIBNUMA endif endif +ifdef HAVE_KVM_STAT_SUPPORT + CFLAGS += -DHAVE_KVM_STAT_SUPPORT +endif + # Among the variables below, these: # perfexecdir # template_dir @@ -621,11 +653,13 @@ else sysconfdir = $(prefix)/etc ETC_PERFCONFIG = etc/perfconfig endif +ifndef lib ifeq ($(IS_X86_64),1) lib = lib64 else lib = lib endif +endif # lib libdir = $(prefix)/$(lib) # Shell quote (do not use $(call) to accommodate ancient setups); diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile index 64c84e5f0514..72ab2984718e 100644 --- a/tools/perf/config/feature-checks/Makefile +++ b/tools/perf/config/feature-checks/Makefile @@ -5,6 +5,7 @@ FILES= \ test-bionic.bin \ test-dwarf.bin \ test-fortify-source.bin \ + test-sync-compare-and-swap.bin \ test-glibc.bin \ test-gtk2.bin \ test-gtk2-infobar.bin \ @@ -100,25 +101,11 @@ FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS) test-libperl.bin: $(BUILD) $(FLAGS_PERL_EMBED) -override PYTHON := python -override PYTHON_CONFIG := python-config - -escape-for-shell-sq = $(subst ','\'',$(1)) -shell-sq = '$(escape-for-shell-sq)' - -PYTHON_CONFIG_SQ = $(call shell-sq,$(PYTHON_CONFIG)) - -PYTHON_EMBED_LDOPTS = $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null) -PYTHON_EMBED_LDFLAGS = $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) -PYTHON_EMBED_LIBADD = $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -PYTHON_EMBED_CCOPTS = $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null) -FLAGS_PYTHON_EMBED = $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) - test-libpython.bin: - $(BUILD) $(FLAGS_PYTHON_EMBED) + $(BUILD) test-libpython-version.bin: - $(BUILD) $(FLAGS_PYTHON_EMBED) + $(BUILD) test-libbfd.bin: $(BUILD) -DPACKAGE='"perf"' -lbfd -lz -liberty -ldl @@ -141,6 +128,9 @@ test-timerfd.bin: test-libdw-dwarf-unwind.bin: $(BUILD) +test-sync-compare-and-swap.bin: + $(BUILD) -Werror + -include *.d ############################### diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c index fe5c1e5c952f..a7d022e161c0 100644 --- a/tools/perf/config/feature-checks/test-all.c +++ b/tools/perf/config/feature-checks/test-all.c @@ -89,6 +89,10 @@ # include "test-libdw-dwarf-unwind.c" #undef main +#define main main_test_sync_compare_and_swap +# include "test-sync-compare-and-swap.c" +#undef main + int main(int argc, char *argv[]) { main_test_libpython(); @@ -111,6 +115,7 @@ int main(int argc, char *argv[]) main_test_timerfd(); main_test_stackprotector_all(); main_test_libdw_dwarf_unwind(); + main_test_sync_compare_and_swap(argc, argv); return 0; } diff --git a/tools/perf/config/feature-checks/test-sync-compare-and-swap.c b/tools/perf/config/feature-checks/test-sync-compare-and-swap.c new file mode 100644 index 000000000000..c34d4ca4af56 --- /dev/null +++ b/tools/perf/config/feature-checks/test-sync-compare-and-swap.c @@ -0,0 +1,14 @@ +#include <stdint.h> + +volatile uint64_t x; + +int main(int argc, char *argv[]) +{ + uint64_t old, new = argc; + + argv = argv; + do { + old = __sync_val_compare_and_swap(&x, 0, 0); + } while (!__sync_bool_compare_and_swap(&x, old, new)); + return old == new; +} diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak index 4d985e0f03f5..7076a62d0ff7 100644 --- a/tools/perf/config/utilities.mak +++ b/tools/perf/config/utilities.mak @@ -132,7 +132,7 @@ endef # # Usage: bool-value = $(call is-absolute,path) # -is-absolute = $(shell echo $(shell-sq) | grep ^/ -q && echo y) +is-absolute = $(shell echo $(shell-sq) | grep -q ^/ && echo y) # lookup # diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h index 5268a1481d23..937e4324ad94 100644 --- a/tools/perf/perf-sys.h +++ b/tools/perf/perf-sys.h @@ -54,6 +54,7 @@ #define mb() asm volatile("bcr 15,0" ::: "memory") #define wmb() asm volatile("bcr 15,0" ::: "memory") #define rmb() asm volatile("bcr 15,0" ::: "memory") +#define CPUINFO_PROC "vendor_id" #endif #ifdef __sh__ diff --git a/tools/perf/perf-with-kcore.sh b/tools/perf/perf-with-kcore.sh new file mode 100644 index 000000000000..c7ff90a90e4e --- /dev/null +++ b/tools/perf/perf-with-kcore.sh @@ -0,0 +1,259 @@ +#!/bin/bash +# perf-with-kcore: use perf with a copy of kcore +# Copyright (c) 2014, Intel Corporation. +# +# This program is free software; you can redistribute it and/or modify it +# under the terms and conditions of the GNU General Public License, +# version 2, as published by the Free Software Foundation. +# +# This program is distributed in the hope it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. + +set -e + +usage() +{ + echo "Usage: perf-with-kcore <perf sub-command> <perf.data directory> [<sub-command options> [ -- <workload>]]" >&2 + echo " <perf sub-command> can be record, script, report or inject" >&2 + echo " or: perf-with-kcore fix_buildid_cache_permissions" >&2 + exit 1 +} + +find_perf() +{ + if [ -n "$PERF" ] ; then + return + fi + PERF=`which perf || true` + if [ -z "$PERF" ] ; then + echo "Failed to find perf" >&2 + exit 1 + fi + if [ ! -x "$PERF" ] ; then + echo "Failed to find perf" >&2 + exit 1 + fi + echo "Using $PERF" + "$PERF" version +} + +copy_kcore() +{ + echo "Copying kcore" + + if [ $EUID -eq 0 ] ; then + SUDO="" + else + SUDO="sudo" + fi + + rm -f perf.data.junk + ("$PERF" record -o perf.data.junk $PERF_OPTIONS -- sleep 60) >/dev/null 2>/dev/null & + PERF_PID=$! + + # Need to make sure that perf has started + sleep 1 + + KCORE=$(($SUDO "$PERF" buildid-cache -v -f -k /proc/kcore >/dev/null) 2>&1) + case "$KCORE" in + "kcore added to build-id cache directory "*) + KCORE_DIR=${KCORE#"kcore added to build-id cache directory "} + ;; + *) + kill $PERF_PID + wait >/dev/null 2>/dev/null || true + rm perf.data.junk + echo "$KCORE" + echo "Failed to find kcore" >&2 + exit 1 + ;; + esac + + kill $PERF_PID + wait >/dev/null 2>/dev/null || true + rm perf.data.junk + + $SUDO cp -a "$KCORE_DIR" "$(pwd)/$PERF_DATA_DIR" + $SUDO rm -f "$KCORE_DIR/kcore" + $SUDO rm -f "$KCORE_DIR/kallsyms" + $SUDO rm -f "$KCORE_DIR/modules" + $SUDO rmdir "$KCORE_DIR" + + KCORE_DIR_BASENAME=$(basename "$KCORE_DIR") + KCORE_DIR="$(pwd)/$PERF_DATA_DIR/$KCORE_DIR_BASENAME" + + $SUDO chown $UID "$KCORE_DIR" + $SUDO chown $UID "$KCORE_DIR/kcore" + $SUDO chown $UID "$KCORE_DIR/kallsyms" + $SUDO chown $UID "$KCORE_DIR/modules" + + $SUDO chgrp $GROUPS "$KCORE_DIR" + $SUDO chgrp $GROUPS "$KCORE_DIR/kcore" + $SUDO chgrp $GROUPS "$KCORE_DIR/kallsyms" + $SUDO chgrp $GROUPS "$KCORE_DIR/modules" + + ln -s "$KCORE_DIR_BASENAME" "$PERF_DATA_DIR/kcore_dir" +} + +fix_buildid_cache_permissions() +{ + if [ $EUID -ne 0 ] ; then + echo "This script must be run as root via sudo " >&2 + exit 1 + fi + + if [ -z "$SUDO_USER" ] ; then + echo "This script must be run via sudo" >&2 + exit 1 + fi + + USER_HOME=$(bash <<< "echo ~$SUDO_USER") + + if [ "$HOME" != "$USER_HOME" ] ; then + echo "Fix unnecessary because root has a home: $HOME" >&2 + exit 1 + fi + + echo "Fixing buildid cache permissions" + + find "$USER_HOME/.debug" -xdev -type d ! -user "$SUDO_USER" -ls -exec chown "$SUDO_USER" \{\} \; + find "$USER_HOME/.debug" -xdev -type f -links 1 ! -user "$SUDO_USER" -ls -exec chown "$SUDO_USER" \{\} \; + find "$USER_HOME/.debug" -xdev -type l ! -user "$SUDO_USER" -ls -exec chown -h "$SUDO_USER" \{\} \; + + if [ -n "$SUDO_GID" ] ; then + find "$USER_HOME/.debug" -xdev -type d ! -group "$SUDO_GID" -ls -exec chgrp "$SUDO_GID" \{\} \; + find "$USER_HOME/.debug" -xdev -type f -links 1 ! -group "$SUDO_GID" -ls -exec chgrp "$SUDO_GID" \{\} \; + find "$USER_HOME/.debug" -xdev -type l ! -group "$SUDO_GID" -ls -exec chgrp -h "$SUDO_GID" \{\} \; + fi + + echo "Done" +} + +check_buildid_cache_permissions() +{ + if [ $EUID -eq 0 ] ; then + return + fi + + PERMISSIONS_OK+=$(find "$HOME/.debug" -xdev -type d ! -user "$USER" -print -quit) + PERMISSIONS_OK+=$(find "$HOME/.debug" -xdev -type f -links 1 ! -user "$USER" -print -quit) + PERMISSIONS_OK+=$(find "$HOME/.debug" -xdev -type l ! -user "$USER" -print -quit) + + PERMISSIONS_OK+=$(find "$HOME/.debug" -xdev -type d ! -group "$GROUPS" -print -quit) + PERMISSIONS_OK+=$(find "$HOME/.debug" -xdev -type f -links 1 ! -group "$GROUPS" -print -quit) + PERMISSIONS_OK+=$(find "$HOME/.debug" -xdev -type l ! -group "$GROUPS" -print -quit) + + if [ -n "$PERMISSIONS_OK" ] ; then + echo "*** WARNING *** buildid cache permissions may need fixing" >&2 + fi +} + +record() +{ + echo "Recording" + + if [ $EUID -ne 0 ] ; then + + if [ "$(cat /proc/sys/kernel/kptr_restrict)" -ne 0 ] ; then + echo "*** WARNING *** /proc/sys/kernel/kptr_restrict prevents access to kernel addresses" >&2 + fi + + if echo "$PERF_OPTIONS" | grep -q ' -a \|^-a \| -a$\|^-a$\| --all-cpus \|^--all-cpus \| --all-cpus$\|^--all-cpus$' ; then + echo "*** WARNING *** system-wide tracing without root access will not be able to read all necessary information from /proc" >&2 + fi + + if echo "$PERF_OPTIONS" | grep -q 'intel_pt\|intel_bts\| -I\|^-I' ; then + if [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt -1 ] ; then + echo "*** WARNING *** /proc/sys/kernel/perf_event_paranoid restricts buffer size and tracepoint (sched_switch) use" >&2 + fi + + if echo "$PERF_OPTIONS" | grep -q ' --per-thread \|^--per-thread \| --per-thread$\|^--per-thread$' ; then + true + elif echo "$PERF_OPTIONS" | grep -q ' -t \|^-t \| -t$\|^-t$' ; then + true + elif [ ! -r /sys/kernel/debug -o ! -x /sys/kernel/debug ] ; then + echo "*** WARNING *** /sys/kernel/debug permissions prevent tracepoint (sched_switch) use" >&2 + fi + fi + fi + + if [ -z "$1" ] ; then + echo "Workload is required for recording" >&2 + usage + fi + + if [ -e "$PERF_DATA_DIR" ] ; then + echo "'$PERF_DATA_DIR' exists" >&2 + exit 1 + fi + + find_perf + + mkdir "$PERF_DATA_DIR" + + echo "$PERF record -o $PERF_DATA_DIR/perf.data $PERF_OPTIONS -- $*" + "$PERF" record -o "$PERF_DATA_DIR/perf.data" $PERF_OPTIONS -- $* || true + + if rmdir "$PERF_DATA_DIR" > /dev/null 2>/dev/null ; then + exit 1 + fi + + copy_kcore + + echo "Done" +} + +subcommand() +{ + find_perf + check_buildid_cache_permissions + echo "$PERF $PERF_SUB_COMMAND -i $PERF_DATA_DIR/perf.data --kallsyms=$PERF_DATA_DIR/kcore_dir/kallsyms $*" + "$PERF" $PERF_SUB_COMMAND -i "$PERF_DATA_DIR/perf.data" "--kallsyms=$PERF_DATA_DIR/kcore_dir/kallsyms" $* +} + +if [ "$1" = "fix_buildid_cache_permissions" ] ; then + fix_buildid_cache_permissions + exit 0 +fi + +PERF_SUB_COMMAND=$1 +PERF_DATA_DIR=$2 +shift || true +shift || true + +if [ -z "$PERF_SUB_COMMAND" ] ; then + usage +fi + +if [ -z "$PERF_DATA_DIR" ] ; then + usage +fi + +case "$PERF_SUB_COMMAND" in +"record") + while [ "$1" != "--" ] ; do + PERF_OPTIONS+="$1 " + shift || break + done + if [ "$1" != "--" ] ; then + echo "Options and workload are required for recording" >&2 + usage + fi + shift + record $* +;; +"script") + subcommand $* +;; +"report") + subcommand $* +;; +"inject") + subcommand $* +;; +*) + usage +;; +esac diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 95c58fc15284..452a8474d29d 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -13,11 +13,12 @@ #include "util/quote.h" #include "util/run-command.h" #include "util/parse-events.h" +#include "util/debug.h" #include <api/fs/debugfs.h> #include <pthread.h> const char perf_usage_string[] = - "perf [--version] [--help] COMMAND [ARGS]"; + "perf [--version] [--help] [OPTIONS] COMMAND [ARGS]"; const char perf_more_info_string[] = "See 'perf help COMMAND' for more information on a specific command."; @@ -212,6 +213,16 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) printf("%s ", p->cmd); } exit(0); + } else if (!strcmp(cmd, "--debug")) { + if (*argc < 2) { + fprintf(stderr, "No variable specified for --debug.\n"); + usage(perf_usage_string); + } + if (perf_debug_option((*argv)[1])) + usage(perf_usage_string); + + (*argv)++; + (*argc)--; } else { fprintf(stderr, "Unknown option: %s\n", cmd); usage(perf_usage_string); @@ -302,6 +313,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) int status; struct stat st; const char *prefix; + char sbuf[STRERR_BUFSIZE]; prefix = NULL; if (p->option & RUN_SETUP) @@ -332,7 +344,8 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) status = 1; /* Check for ENOSPC and EIO errors.. */ if (fflush(stdout)) { - fprintf(stderr, "write failure on standard output: %s", strerror(errno)); + fprintf(stderr, "write failure on standard output: %s", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out; } if (ferror(stdout)) { @@ -340,7 +353,8 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) goto out; } if (fclose(stdout)) { - fprintf(stderr, "close failed on standard output: %s", strerror(errno)); + fprintf(stderr, "close failed on standard output: %s", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out; } status = 0; @@ -455,6 +469,7 @@ void pthread__unblock_sigwinch(void) int main(int argc, const char **argv) { const char *cmd; + char sbuf[STRERR_BUFSIZE]; /* The page_size is placed in util object. */ page_size = sysconf(_SC_PAGE_SIZE); @@ -550,7 +565,7 @@ int main(int argc, const char **argv) } fprintf(stderr, "Failed to run command '%s': %s\n", - cmd, strerror(errno)); + cmd, strerror_r(errno, sbuf, sizeof(sbuf))); out: return 1; } diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 510c65f72858..220d44e44c1b 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -41,8 +41,6 @@ void pthread__unblock_sigwinch(void); struct record_opts { struct target target; - int call_graph; - bool call_graph_enabled; bool group; bool inherit_stat; bool no_buffering; @@ -60,7 +58,6 @@ struct record_opts { u64 branch_stack; u64 default_interval; u64 user_interval; - u16 stack_dump_size; bool sample_transaction; unsigned initial_delay; }; diff --git a/tools/perf/scripts/perl/bin/failed-syscalls-record b/tools/perf/scripts/perl/bin/failed-syscalls-record index 8104895a7b67..74685f318379 100644 --- a/tools/perf/scripts/perl/bin/failed-syscalls-record +++ b/tools/perf/scripts/perl/bin/failed-syscalls-record @@ -1,2 +1,3 @@ #!/bin/bash -perf record -e raw_syscalls:sys_exit $@ +(perf record -e raw_syscalls:sys_exit $@ || \ + perf record -e syscalls:sys_exit $@) 2> /dev/null diff --git a/tools/perf/scripts/perl/failed-syscalls.pl b/tools/perf/scripts/perl/failed-syscalls.pl index 94bc25a347eb..55e7ae4c5c88 100644 --- a/tools/perf/scripts/perl/failed-syscalls.pl +++ b/tools/perf/scripts/perl/failed-syscalls.pl @@ -26,6 +26,11 @@ sub raw_syscalls::sys_exit } } +sub syscalls::sys_exit +{ + raw_syscalls::sys_exit(@_) +} + sub trace_end { printf("\nfailed syscalls by comm:\n\n"); diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py index de7211e4fa47..38dfb720fb6f 100644 --- a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py +++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Core.py @@ -107,12 +107,13 @@ def taskState(state): class EventHeaders: def __init__(self, common_cpu, common_secs, common_nsecs, - common_pid, common_comm): + common_pid, common_comm, common_callchain): self.cpu = common_cpu self.secs = common_secs self.nsecs = common_nsecs self.pid = common_pid self.comm = common_comm + self.callchain = common_callchain def ts(self): return (self.secs * (10 ** 9)) + self.nsecs diff --git a/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record b/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record index 8104895a7b67..74685f318379 100644 --- a/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record +++ b/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record @@ -1,2 +1,3 @@ #!/bin/bash -perf record -e raw_syscalls:sys_exit $@ +(perf record -e raw_syscalls:sys_exit $@ || \ + perf record -e syscalls:sys_exit $@) 2> /dev/null diff --git a/tools/perf/scripts/python/bin/sctop-record b/tools/perf/scripts/python/bin/sctop-record index 4efbfaa7f6a5..d6940841e54f 100644 --- a/tools/perf/scripts/python/bin/sctop-record +++ b/tools/perf/scripts/python/bin/sctop-record @@ -1,2 +1,3 @@ #!/bin/bash -perf record -e raw_syscalls:sys_enter $@ +(perf record -e raw_syscalls:sys_enter $@ || \ + perf record -e syscalls:sys_enter $@) 2> /dev/null diff --git a/tools/perf/scripts/python/bin/syscall-counts-by-pid-record b/tools/perf/scripts/python/bin/syscall-counts-by-pid-record index 4efbfaa7f6a5..d6940841e54f 100644 --- a/tools/perf/scripts/python/bin/syscall-counts-by-pid-record +++ b/tools/perf/scripts/python/bin/syscall-counts-by-pid-record @@ -1,2 +1,3 @@ #!/bin/bash -perf record -e raw_syscalls:sys_enter $@ +(perf record -e raw_syscalls:sys_enter $@ || \ + perf record -e syscalls:sys_enter $@) 2> /dev/null diff --git a/tools/perf/scripts/python/bin/syscall-counts-record b/tools/perf/scripts/python/bin/syscall-counts-record index 4efbfaa7f6a5..d6940841e54f 100644 --- a/tools/perf/scripts/python/bin/syscall-counts-record +++ b/tools/perf/scripts/python/bin/syscall-counts-record @@ -1,2 +1,3 @@ #!/bin/bash -perf record -e raw_syscalls:sys_enter $@ +(perf record -e raw_syscalls:sys_enter $@ || \ + perf record -e syscalls:sys_enter $@) 2> /dev/null diff --git a/tools/perf/scripts/python/check-perf-trace.py b/tools/perf/scripts/python/check-perf-trace.py index 4647a7694cf6..334599c6032c 100644 --- a/tools/perf/scripts/python/check-perf-trace.py +++ b/tools/perf/scripts/python/check-perf-trace.py @@ -27,7 +27,7 @@ def trace_end(): def irq__softirq_entry(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - vec): + common_callchain, vec): print_header(event_name, common_cpu, common_secs, common_nsecs, common_pid, common_comm) @@ -38,7 +38,7 @@ def irq__softirq_entry(event_name, context, common_cpu, def kmem__kmalloc(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - call_site, ptr, bytes_req, bytes_alloc, + common_callchain, call_site, ptr, bytes_req, bytes_alloc, gfp_flags): print_header(event_name, common_cpu, common_secs, common_nsecs, common_pid, common_comm) diff --git a/tools/perf/scripts/python/failed-syscalls-by-pid.py b/tools/perf/scripts/python/failed-syscalls-by-pid.py index 85805fac4116..cafeff3d74db 100644 --- a/tools/perf/scripts/python/failed-syscalls-by-pid.py +++ b/tools/perf/scripts/python/failed-syscalls-by-pid.py @@ -39,7 +39,7 @@ def trace_end(): def raw_syscalls__sys_exit(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - id, ret): + common_callchain, id, ret): if (for_comm and common_comm != for_comm) or \ (for_pid and common_pid != for_pid ): return @@ -50,6 +50,11 @@ def raw_syscalls__sys_exit(event_name, context, common_cpu, except TypeError: syscalls[common_comm][common_pid][id][ret] = 1 +def syscalls__sys_exit(event_name, context, common_cpu, + common_secs, common_nsecs, common_pid, common_comm, + id, ret): + raw_syscalls__sys_exit(**locals()) + def print_error_totals(): if for_comm is not None: print "\nsyscall errors for %s:\n\n" % (for_comm), diff --git a/tools/perf/scripts/python/futex-contention.py b/tools/perf/scripts/python/futex-contention.py index 11e70a388d41..0f5cf437b602 100644 --- a/tools/perf/scripts/python/futex-contention.py +++ b/tools/perf/scripts/python/futex-contention.py @@ -21,7 +21,7 @@ thread_blocktime = {} lock_waits = {} # long-lived stats on (tid,lock) blockage elapsed time process_names = {} # long-lived pid-to-execname mapping -def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm, +def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm, callchain, nr, uaddr, op, val, utime, uaddr2, val3): cmd = op & FUTEX_CMD_MASK if cmd != FUTEX_WAIT: @@ -31,7 +31,7 @@ def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm, thread_thislock[tid] = uaddr thread_blocktime[tid] = nsecs(s, ns) -def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm, +def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm, callchain, nr, ret): if thread_blocktime.has_key(tid): elapsed = nsecs(s, ns) - thread_blocktime[tid] diff --git a/tools/perf/scripts/python/net_dropmonitor.py b/tools/perf/scripts/python/net_dropmonitor.py index b5740599aabd..0b6ce8c253e8 100755 --- a/tools/perf/scripts/python/net_dropmonitor.py +++ b/tools/perf/scripts/python/net_dropmonitor.py @@ -66,7 +66,7 @@ def trace_end(): print_drop_table() # called from perf, when it finds a correspoinding event -def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, +def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr, location, protocol): slocation = str(location) try: diff --git a/tools/perf/scripts/python/netdev-times.py b/tools/perf/scripts/python/netdev-times.py index 9aa0a32972e8..4d21ef2d601d 100644 --- a/tools/perf/scripts/python/netdev-times.py +++ b/tools/perf/scripts/python/netdev-times.py @@ -224,75 +224,75 @@ def trace_end(): (len(rx_skb_list), of_count_rx_skb_list) # called from perf, when it finds a correspoinding event -def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, vec): +def irq__softirq_entry(name, context, cpu, sec, nsec, pid, comm, callchain, vec): if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX": return event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec) all_event_list.append(event_info) -def irq__softirq_exit(name, context, cpu, sec, nsec, pid, comm, vec): +def irq__softirq_exit(name, context, cpu, sec, nsec, pid, comm, callchain, vec): if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX": return event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec) all_event_list.append(event_info) -def irq__softirq_raise(name, context, cpu, sec, nsec, pid, comm, vec): +def irq__softirq_raise(name, context, cpu, sec, nsec, pid, comm, callchain, vec): if symbol_str("irq__softirq_entry", "vec", vec) != "NET_RX": return event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, vec) all_event_list.append(event_info) def irq__irq_handler_entry(name, context, cpu, sec, nsec, pid, comm, - irq, irq_name): + callchain, irq, irq_name): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, irq, irq_name) all_event_list.append(event_info) -def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, irq, ret): +def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, callchain, irq, ret): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, irq, ret) all_event_list.append(event_info) -def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, napi, dev_name): +def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, callchain, napi, dev_name): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, napi, dev_name) all_event_list.append(event_info) -def net__netif_receive_skb(name, context, cpu, sec, nsec, pid, comm, skbaddr, +def net__netif_receive_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr, skblen, dev_name): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, skbaddr, skblen, dev_name) all_event_list.append(event_info) -def net__netif_rx(name, context, cpu, sec, nsec, pid, comm, skbaddr, +def net__netif_rx(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr, skblen, dev_name): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, skbaddr, skblen, dev_name) all_event_list.append(event_info) -def net__net_dev_queue(name, context, cpu, sec, nsec, pid, comm, +def net__net_dev_queue(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr, skblen, dev_name): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, skbaddr, skblen, dev_name) all_event_list.append(event_info) -def net__net_dev_xmit(name, context, cpu, sec, nsec, pid, comm, +def net__net_dev_xmit(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr, skblen, rc, dev_name): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, skbaddr, skblen, rc ,dev_name) all_event_list.append(event_info) -def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, +def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr, protocol, location): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, skbaddr, protocol, location) all_event_list.append(event_info) -def skb__consume_skb(name, context, cpu, sec, nsec, pid, comm, skbaddr): +def skb__consume_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, skbaddr) all_event_list.append(event_info) -def skb__skb_copy_datagram_iovec(name, context, cpu, sec, nsec, pid, comm, +def skb__skb_copy_datagram_iovec(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr, skblen): event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, skbaddr, skblen) diff --git a/tools/perf/scripts/python/sched-migration.py b/tools/perf/scripts/python/sched-migration.py index 74d55ec08aed..de66cb3b72c9 100644 --- a/tools/perf/scripts/python/sched-migration.py +++ b/tools/perf/scripts/python/sched-migration.py @@ -369,93 +369,92 @@ def trace_end(): def sched__sched_stat_runtime(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, runtime, vruntime): + common_callchain, comm, pid, runtime, vruntime): pass def sched__sched_stat_iowait(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, delay): + common_callchain, comm, pid, delay): pass def sched__sched_stat_sleep(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, delay): + common_callchain, comm, pid, delay): pass def sched__sched_stat_wait(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, delay): + common_callchain, comm, pid, delay): pass def sched__sched_process_fork(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - parent_comm, parent_pid, child_comm, child_pid): + common_callchain, parent_comm, parent_pid, child_comm, child_pid): pass def sched__sched_process_wait(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, prio): + common_callchain, comm, pid, prio): pass def sched__sched_process_exit(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, prio): + common_callchain, comm, pid, prio): pass def sched__sched_process_free(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, prio): + common_callchain, comm, pid, prio): pass def sched__sched_migrate_task(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, prio, orig_cpu, + common_callchain, comm, pid, prio, orig_cpu, dest_cpu): headers = EventHeaders(common_cpu, common_secs, common_nsecs, - common_pid, common_comm) + common_pid, common_comm, common_callchain) parser.migrate(headers, pid, prio, orig_cpu, dest_cpu) def sched__sched_switch(event_name, context, common_cpu, - common_secs, common_nsecs, common_pid, common_comm, + common_secs, common_nsecs, common_pid, common_comm, common_callchain, prev_comm, prev_pid, prev_prio, prev_state, next_comm, next_pid, next_prio): headers = EventHeaders(common_cpu, common_secs, common_nsecs, - common_pid, common_comm) + common_pid, common_comm, common_callchain) parser.sched_switch(headers, prev_comm, prev_pid, prev_prio, prev_state, next_comm, next_pid, next_prio) def sched__sched_wakeup_new(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, prio, success, + common_callchain, comm, pid, prio, success, target_cpu): headers = EventHeaders(common_cpu, common_secs, common_nsecs, - common_pid, common_comm) + common_pid, common_comm, common_callchain) parser.wake_up(headers, comm, pid, success, target_cpu, 1) def sched__sched_wakeup(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, prio, success, + common_callchain, comm, pid, prio, success, target_cpu): headers = EventHeaders(common_cpu, common_secs, common_nsecs, - common_pid, common_comm) + common_pid, common_comm, common_callchain) parser.wake_up(headers, comm, pid, success, target_cpu, 0) def sched__sched_wait_task(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid, prio): + common_callchain, comm, pid, prio): pass def sched__sched_kthread_stop_ret(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - ret): + common_callchain, ret): pass def sched__sched_kthread_stop(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - comm, pid): + common_callchain, comm, pid): pass -def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs, - common_pid, common_comm): +def trace_unhandled(event_name, context, event_fields_dict): pass diff --git a/tools/perf/scripts/python/sctop.py b/tools/perf/scripts/python/sctop.py index 42c267e292fa..61621b93affb 100644 --- a/tools/perf/scripts/python/sctop.py +++ b/tools/perf/scripts/python/sctop.py @@ -44,7 +44,7 @@ def trace_begin(): def raw_syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - id, args): + common_callchain, id, args): if for_comm is not None: if common_comm != for_comm: return @@ -53,6 +53,11 @@ def raw_syscalls__sys_enter(event_name, context, common_cpu, except TypeError: syscalls[id] = 1 +def syscalls__sys_enter(event_name, context, common_cpu, + common_secs, common_nsecs, common_pid, common_comm, + id, args): + raw_syscalls__sys_enter(**locals()) + def print_syscall_totals(interval): while 1: clear_term() diff --git a/tools/perf/scripts/python/syscall-counts-by-pid.py b/tools/perf/scripts/python/syscall-counts-by-pid.py index c64d1c55d745..daf314cc5dd3 100644 --- a/tools/perf/scripts/python/syscall-counts-by-pid.py +++ b/tools/perf/scripts/python/syscall-counts-by-pid.py @@ -38,7 +38,7 @@ def trace_end(): def raw_syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - id, args): + common_callchain, id, args): if (for_comm and common_comm != for_comm) or \ (for_pid and common_pid != for_pid ): @@ -48,6 +48,11 @@ def raw_syscalls__sys_enter(event_name, context, common_cpu, except TypeError: syscalls[common_comm][common_pid][id] = 1 +def syscalls__sys_enter(event_name, context, common_cpu, + common_secs, common_nsecs, common_pid, common_comm, + id, args): + raw_syscalls__sys_enter(**locals()) + def print_syscall_totals(): if for_comm is not None: print "\nsyscall events for %s:\n\n" % (for_comm), diff --git a/tools/perf/scripts/python/syscall-counts.py b/tools/perf/scripts/python/syscall-counts.py index b435d3f188e8..e66a7730aeb5 100644 --- a/tools/perf/scripts/python/syscall-counts.py +++ b/tools/perf/scripts/python/syscall-counts.py @@ -35,7 +35,7 @@ def trace_end(): def raw_syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, - id, args): + common_callchain, id, args): if for_comm is not None: if common_comm != for_comm: return @@ -44,6 +44,11 @@ def raw_syscalls__sys_enter(event_name, context, common_cpu, except TypeError: syscalls[id] = 1 +def syscalls__sys_enter(event_name, context, common_cpu, + common_secs, common_nsecs, common_pid, common_comm, + id, args): + raw_syscalls__sys_enter(**locals()) + def print_syscall_totals(): if for_comm is not None: print "\nsyscall events for %s:\n\n" % (for_comm), diff --git a/tools/perf/tests/attr/base-record b/tools/perf/tests/attr/base-record index e9bd6391f2ae..f710b92ccff6 100644 --- a/tools/perf/tests/attr/base-record +++ b/tools/perf/tests/attr/base-record @@ -1,7 +1,8 @@ [event] fd=1 group_fd=-1 -flags=0 +# 0 or PERF_FLAG_FD_CLOEXEC flag +flags=0|8 cpu=* type=0|1 size=96 diff --git a/tools/perf/tests/attr/base-stat b/tools/perf/tests/attr/base-stat index 91cd48b399f3..dc3ada2470c0 100644 --- a/tools/perf/tests/attr/base-stat +++ b/tools/perf/tests/attr/base-stat @@ -1,7 +1,8 @@ [event] fd=1 group_fd=-1 -flags=0 +# 0 or PERF_FLAG_FD_CLOEXEC flag +flags=0|8 cpu=* type=0 size=96 diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c index aba095489193..a02b035fd5aa 100644 --- a/tools/perf/tests/bp_signal.c +++ b/tools/perf/tests/bp_signal.c @@ -25,6 +25,7 @@ #include "tests.h" #include "debug.h" #include "perf.h" +#include "cloexec.h" static int fd1; static int fd2; @@ -78,7 +79,8 @@ static int bp_event(void *fn, int setup_signal) pe.exclude_kernel = 1; pe.exclude_hv = 1; - fd = sys_perf_event_open(&pe, 0, -1, -1, 0); + fd = sys_perf_event_open(&pe, 0, -1, -1, + perf_event_open_cloexec_flag()); if (fd < 0) { pr_debug("failed opening event %llx\n", pe.config); return TEST_FAIL; diff --git a/tools/perf/tests/bp_signal_overflow.c b/tools/perf/tests/bp_signal_overflow.c index 44ac82179708..e76537724491 100644 --- a/tools/perf/tests/bp_signal_overflow.c +++ b/tools/perf/tests/bp_signal_overflow.c @@ -24,6 +24,7 @@ #include "tests.h" #include "debug.h" #include "perf.h" +#include "cloexec.h" static int overflows; @@ -91,7 +92,8 @@ int test__bp_signal_overflow(void) pe.exclude_kernel = 1; pe.exclude_hv = 1; - fd = sys_perf_event_open(&pe, 0, -1, -1, 0); + fd = sys_perf_event_open(&pe, 0, -1, -1, + perf_event_open_cloexec_flag()); if (fd < 0) { pr_debug("failed opening event %llx\n", pe.config); return TEST_FAIL; diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 6f8b01bc6033..162c978f1491 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -6,6 +6,7 @@ #include <unistd.h> #include <string.h> #include "builtin.h" +#include "hist.h" #include "intlist.h" #include "tests.h" #include "debug.h" @@ -154,6 +155,18 @@ static struct test { .func = test__hists_cumulate, }, { + .desc = "Test tracking with sched_switch", + .func = test__switch_tracking, + }, + { + .desc = "Filter fds with revents mask in a fdarray", + .func = test__fdarray__filter, + }, + { + .desc = "Add fd to a fdarray, making it autogrow", + .func = test__fdarray__add, + }, + { .func = NULL, }, }; @@ -185,9 +198,11 @@ static bool perf_test__matches(int curr, int argc, const char *argv[]) static int run_test(struct test *test) { int status, err = -1, child = fork(); + char sbuf[STRERR_BUFSIZE]; if (child < 0) { - pr_err("failed to fork test: %s\n", strerror(errno)); + pr_err("failed to fork test: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); return -1; } @@ -288,6 +303,10 @@ int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused) OPT_END() }; struct intlist *skiplist = NULL; + int ret = hists__init(); + + if (ret < 0) + return ret; argc = parse_options(argc, argv, test_options, test_usage, 0); if (argc >= 1 && !strcmp(argv[0], "list")) @@ -297,7 +316,7 @@ int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused) symbol_conf.sort_by_name = true; symbol_conf.try_vmlinux_path = true; - if (symbol__init() < 0) + if (symbol__init(NULL) < 0) return -1; if (skip != NULL) diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c index 630808cd7cc2..caaf37f079b1 100644 --- a/tools/perf/tests/dso-data.c +++ b/tools/perf/tests/dso-data.c @@ -10,6 +10,7 @@ #include "machine.h" #include "symbol.h" #include "tests.h" +#include "debug.h" static char *test_file(int size) { diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c index 96adb730b744..fc25e57f4a5d 100644 --- a/tools/perf/tests/dwarf-unwind.c +++ b/tools/perf/tests/dwarf-unwind.c @@ -9,6 +9,7 @@ #include "perf_regs.h" #include "map.h" #include "thread.h" +#include "callchain.h" static int mmap_handler(struct perf_tool *tool __maybe_unused, union perf_event *event, @@ -120,6 +121,8 @@ int test__dwarf_unwind(void) return -1; } + callchain_param.record_mode = CALLCHAIN_DWARF; + if (init_live_machine(machine)) { pr_err("Could not init machine\n"); goto out; diff --git a/tools/perf/tests/evsel-roundtrip-name.c b/tools/perf/tests/evsel-roundtrip-name.c index 465cdbc345cf..b8d8341b383e 100644 --- a/tools/perf/tests/evsel-roundtrip-name.c +++ b/tools/perf/tests/evsel-roundtrip-name.c @@ -2,6 +2,7 @@ #include "evsel.h" #include "parse-events.h" #include "tests.h" +#include "debug.h" static int perf_evsel__roundtrip_cache_name_test(void) { diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c index 35d7fdb2328d..52162425c969 100644 --- a/tools/perf/tests/evsel-tp-sched.c +++ b/tools/perf/tests/evsel-tp-sched.c @@ -1,6 +1,7 @@ #include <traceevent/event-parse.h> #include "evsel.h" #include "tests.h" +#include "debug.h" static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name, int size, bool should_be_signed) diff --git a/tools/perf/tests/fdarray.c b/tools/perf/tests/fdarray.c new file mode 100644 index 000000000000..d24b837951d4 --- /dev/null +++ b/tools/perf/tests/fdarray.c @@ -0,0 +1,174 @@ +#include <api/fd/array.h> +#include "util/debug.h" +#include "tests/tests.h" + +static void fdarray__init_revents(struct fdarray *fda, short revents) +{ + int fd; + + fda->nr = fda->nr_alloc; + + for (fd = 0; fd < fda->nr; ++fd) { + fda->entries[fd].fd = fda->nr - fd; + fda->entries[fd].revents = revents; + } +} + +static int fdarray__fprintf_prefix(struct fdarray *fda, const char *prefix, FILE *fp) +{ + int printed = 0; + + if (!verbose) + return 0; + + printed += fprintf(fp, "\n%s: ", prefix); + return printed + fdarray__fprintf(fda, fp); +} + +int test__fdarray__filter(void) +{ + int nr_fds, expected_fd[2], fd, err = TEST_FAIL; + struct fdarray *fda = fdarray__new(5, 5); + + if (fda == NULL) { + pr_debug("\nfdarray__new() failed!"); + goto out; + } + + fdarray__init_revents(fda, POLLIN); + nr_fds = fdarray__filter(fda, POLLHUP, NULL); + if (nr_fds != fda->nr_alloc) { + pr_debug("\nfdarray__filter()=%d != %d shouldn't have filtered anything", + nr_fds, fda->nr_alloc); + goto out_delete; + } + + fdarray__init_revents(fda, POLLHUP); + nr_fds = fdarray__filter(fda, POLLHUP, NULL); + if (nr_fds != 0) { + pr_debug("\nfdarray__filter()=%d != %d, should have filtered all fds", + nr_fds, fda->nr_alloc); + goto out_delete; + } + + fdarray__init_revents(fda, POLLHUP); + fda->entries[2].revents = POLLIN; + expected_fd[0] = fda->entries[2].fd; + + pr_debug("\nfiltering all but fda->entries[2]:"); + fdarray__fprintf_prefix(fda, "before", stderr); + nr_fds = fdarray__filter(fda, POLLHUP, NULL); + fdarray__fprintf_prefix(fda, " after", stderr); + if (nr_fds != 1) { + pr_debug("\nfdarray__filter()=%d != 1, should have left just one event", nr_fds); + goto out_delete; + } + + if (fda->entries[0].fd != expected_fd[0]) { + pr_debug("\nfda->entries[0].fd=%d != %d\n", + fda->entries[0].fd, expected_fd[0]); + goto out_delete; + } + + fdarray__init_revents(fda, POLLHUP); + fda->entries[0].revents = POLLIN; + expected_fd[0] = fda->entries[0].fd; + fda->entries[3].revents = POLLIN; + expected_fd[1] = fda->entries[3].fd; + + pr_debug("\nfiltering all but (fda->entries[0], fda->entries[3]):"); + fdarray__fprintf_prefix(fda, "before", stderr); + nr_fds = fdarray__filter(fda, POLLHUP, NULL); + fdarray__fprintf_prefix(fda, " after", stderr); + if (nr_fds != 2) { + pr_debug("\nfdarray__filter()=%d != 2, should have left just two events", + nr_fds); + goto out_delete; + } + + for (fd = 0; fd < 2; ++fd) { + if (fda->entries[fd].fd != expected_fd[fd]) { + pr_debug("\nfda->entries[%d].fd=%d != %d\n", fd, + fda->entries[fd].fd, expected_fd[fd]); + goto out_delete; + } + } + + pr_debug("\n"); + + err = 0; +out_delete: + fdarray__delete(fda); +out: + return err; +} + +int test__fdarray__add(void) +{ + int err = TEST_FAIL; + struct fdarray *fda = fdarray__new(2, 2); + + if (fda == NULL) { + pr_debug("\nfdarray__new() failed!"); + goto out; + } + +#define FDA_CHECK(_idx, _fd, _revents) \ + if (fda->entries[_idx].fd != _fd) { \ + pr_debug("\n%d: fda->entries[%d](%d) != %d!", \ + __LINE__, _idx, fda->entries[1].fd, _fd); \ + goto out_delete; \ + } \ + if (fda->entries[_idx].events != (_revents)) { \ + pr_debug("\n%d: fda->entries[%d].revents(%d) != %d!", \ + __LINE__, _idx, fda->entries[_idx].fd, _revents); \ + goto out_delete; \ + } + +#define FDA_ADD(_idx, _fd, _revents, _nr) \ + if (fdarray__add(fda, _fd, _revents) < 0) { \ + pr_debug("\n%d: fdarray__add(fda, %d, %d) failed!", \ + __LINE__,_fd, _revents); \ + goto out_delete; \ + } \ + if (fda->nr != _nr) { \ + pr_debug("\n%d: fdarray__add(fda, %d, %d)=%d != %d", \ + __LINE__,_fd, _revents, fda->nr, _nr); \ + goto out_delete; \ + } \ + FDA_CHECK(_idx, _fd, _revents) + + FDA_ADD(0, 1, POLLIN, 1); + FDA_ADD(1, 2, POLLERR, 2); + + fdarray__fprintf_prefix(fda, "before growing array", stderr); + + FDA_ADD(2, 35, POLLHUP, 3); + + if (fda->entries == NULL) { + pr_debug("\nfdarray__add(fda, 35, POLLHUP) should have allocated fda->pollfd!"); + goto out_delete; + } + + fdarray__fprintf_prefix(fda, "after 3rd add", stderr); + + FDA_ADD(3, 88, POLLIN | POLLOUT, 4); + + fdarray__fprintf_prefix(fda, "after 4th add", stderr); + + FDA_CHECK(0, 1, POLLIN); + FDA_CHECK(1, 2, POLLERR); + FDA_CHECK(2, 35, POLLHUP); + FDA_CHECK(3, 88, POLLIN | POLLOUT); + +#undef FDA_ADD +#undef FDA_CHECK + + pr_debug("\n"); + + err = 0; +out_delete: + fdarray__delete(fda); +out: + return err; +} diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c index 0ac240db2e24..614d5c4978ab 100644 --- a/tools/perf/tests/hists_cumulate.c +++ b/tools/perf/tests/hists_cumulate.c @@ -245,7 +245,7 @@ static int do_test(struct hists *hists, struct result *expected, size_t nr_expec static int test1(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); /* * expected output: * @@ -295,7 +295,7 @@ out: static int test2(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); /* * expected output: * @@ -442,7 +442,7 @@ out: static int test3(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); /* * expected output: * @@ -498,7 +498,7 @@ out: static int test4(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); /* * expected output: * diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c index 821f581fd930..5a31787cc6b9 100644 --- a/tools/perf/tests/hists_filter.c +++ b/tools/perf/tests/hists_filter.c @@ -66,11 +66,12 @@ static int add_hist_entries(struct perf_evlist *evlist, .ops = &hist_iter_normal, .hide_unresolved = false, }; + struct hists *hists = evsel__hists(evsel); /* make sure it has no filter at first */ - evsel->hists.thread_filter = NULL; - evsel->hists.dso_filter = NULL; - evsel->hists.symbol_filter_str = NULL; + hists->thread_filter = NULL; + hists->dso_filter = NULL; + hists->symbol_filter_str = NULL; sample.pid = fake_samples[i].pid; sample.tid = fake_samples[i].pid; @@ -134,7 +135,7 @@ int test__hists_filter(void) goto out; evlist__for_each(evlist, evsel) { - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); hists__collapse_resort(hists, NULL); hists__output_resort(hists); @@ -160,7 +161,7 @@ int test__hists_filter(void) hists->stats.total_non_filtered_period); /* now applying thread filter for 'bash' */ - evsel->hists.thread_filter = fake_samples[9].thread; + hists->thread_filter = fake_samples[9].thread; hists__filter_by_thread(hists); if (verbose > 2) { @@ -185,11 +186,11 @@ int test__hists_filter(void) hists->stats.total_non_filtered_period == 400); /* remove thread filter first */ - evsel->hists.thread_filter = NULL; + hists->thread_filter = NULL; hists__filter_by_thread(hists); /* now applying dso filter for 'kernel' */ - evsel->hists.dso_filter = fake_samples[0].map->dso; + hists->dso_filter = fake_samples[0].map->dso; hists__filter_by_dso(hists); if (verbose > 2) { @@ -214,7 +215,7 @@ int test__hists_filter(void) hists->stats.total_non_filtered_period == 300); /* remove dso filter first */ - evsel->hists.dso_filter = NULL; + hists->dso_filter = NULL; hists__filter_by_dso(hists); /* @@ -224,7 +225,7 @@ int test__hists_filter(void) * be counted as a separate entry but the sample count and * total period will be remained. */ - evsel->hists.symbol_filter_str = "main"; + hists->symbol_filter_str = "main"; hists__filter_by_symbol(hists); if (verbose > 2) { @@ -249,8 +250,8 @@ int test__hists_filter(void) hists->stats.total_non_filtered_period == 300); /* now applying all filters at once. */ - evsel->hists.thread_filter = fake_samples[1].thread; - evsel->hists.dso_filter = fake_samples[1].map->dso; + hists->thread_filter = fake_samples[1].thread; + hists->dso_filter = fake_samples[1].map->dso; hists__filter_by_thread(hists); hists__filter_by_dso(hists); diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c index d4b34b0f50a2..278ba8344c23 100644 --- a/tools/perf/tests/hists_link.c +++ b/tools/perf/tests/hists_link.c @@ -73,6 +73,8 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine) * "bash [libc] malloc" so total 9 entries will be in the tree. */ evlist__for_each(evlist, evsel) { + struct hists *hists = evsel__hists(evsel); + for (k = 0; k < ARRAY_SIZE(fake_common_samples); k++) { const union perf_event event = { .header = { @@ -87,7 +89,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine) &sample) < 0) goto out; - he = __hists__add_entry(&evsel->hists, &al, NULL, + he = __hists__add_entry(hists, &al, NULL, NULL, NULL, 1, 1, 0, true); if (he == NULL) goto out; @@ -111,7 +113,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine) &sample) < 0) goto out; - he = __hists__add_entry(&evsel->hists, &al, NULL, + he = __hists__add_entry(hists, &al, NULL, NULL, NULL, 1, 1, 0, true); if (he == NULL) goto out; @@ -271,6 +273,7 @@ static int validate_link(struct hists *leader, struct hists *other) int test__hists_link(void) { int err = -1; + struct hists *hists, *first_hists; struct machines machines; struct machine *machine = NULL; struct perf_evsel *evsel, *first; @@ -306,24 +309,28 @@ int test__hists_link(void) goto out; evlist__for_each(evlist, evsel) { - hists__collapse_resort(&evsel->hists, NULL); + hists = evsel__hists(evsel); + hists__collapse_resort(hists, NULL); if (verbose > 2) - print_hists_in(&evsel->hists); + print_hists_in(hists); } first = perf_evlist__first(evlist); evsel = perf_evlist__last(evlist); + first_hists = evsel__hists(first); + hists = evsel__hists(evsel); + /* match common entries */ - hists__match(&first->hists, &evsel->hists); - err = validate_match(&first->hists, &evsel->hists); + hists__match(first_hists, hists); + err = validate_match(first_hists, hists); if (err) goto out; /* link common and/or dummy entries */ - hists__link(&first->hists, &evsel->hists); - err = validate_link(&first->hists, &evsel->hists); + hists__link(first_hists, hists); + err = validate_link(first_hists, hists); if (err) goto out; diff --git a/tools/perf/tests/hists_output.c b/tools/perf/tests/hists_output.c index e3bbd6c54c1b..a748f2be1222 100644 --- a/tools/perf/tests/hists_output.c +++ b/tools/perf/tests/hists_output.c @@ -122,7 +122,7 @@ typedef int (*test_fn_t)(struct perf_evsel *, struct machine *); static int test1(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); struct hist_entry *he; struct rb_root *root; struct rb_node *node; @@ -159,7 +159,7 @@ static int test1(struct perf_evsel *evsel, struct machine *machine) print_hists_out(hists); } - root = &evsel->hists.entries; + root = &hists->entries; node = rb_first(root); he = rb_entry(node, struct hist_entry, rb_node); TEST_ASSERT_VAL("Invalid hist entry", @@ -224,7 +224,7 @@ out: static int test2(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); struct hist_entry *he; struct rb_root *root; struct rb_node *node; @@ -259,7 +259,7 @@ static int test2(struct perf_evsel *evsel, struct machine *machine) print_hists_out(hists); } - root = &evsel->hists.entries; + root = &hists->entries; node = rb_first(root); he = rb_entry(node, struct hist_entry, rb_node); TEST_ASSERT_VAL("Invalid hist entry", @@ -280,7 +280,7 @@ out: static int test3(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); struct hist_entry *he; struct rb_root *root; struct rb_node *node; @@ -313,7 +313,7 @@ static int test3(struct perf_evsel *evsel, struct machine *machine) print_hists_out(hists); } - root = &evsel->hists.entries; + root = &hists->entries; node = rb_first(root); he = rb_entry(node, struct hist_entry, rb_node); TEST_ASSERT_VAL("Invalid hist entry", @@ -354,7 +354,7 @@ out: static int test4(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); struct hist_entry *he; struct rb_root *root; struct rb_node *node; @@ -391,7 +391,7 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) print_hists_out(hists); } - root = &evsel->hists.entries; + root = &hists->entries; node = rb_first(root); he = rb_entry(node, struct hist_entry, rb_node); TEST_ASSERT_VAL("Invalid hist entry", @@ -456,7 +456,7 @@ out: static int test5(struct perf_evsel *evsel, struct machine *machine) { int err; - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); struct hist_entry *he; struct rb_root *root; struct rb_node *node; @@ -494,7 +494,7 @@ static int test5(struct perf_evsel *evsel, struct machine *machine) print_hists_out(hists); } - root = &evsel->hists.entries; + root = &hists->entries; node = rb_first(root); he = rb_entry(node, struct hist_entry, rb_node); diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c index 142263492f6f..9b9622a33932 100644 --- a/tools/perf/tests/mmap-basic.c +++ b/tools/perf/tests/mmap-basic.c @@ -31,6 +31,7 @@ int test__basic_mmap(void) unsigned int nr_events[nsyscalls], expected_nr_events[nsyscalls], i, j; struct perf_evsel *evsels[nsyscalls], *evsel; + char sbuf[STRERR_BUFSIZE]; threads = thread_map__new(-1, getpid(), UINT_MAX); if (threads == NULL) { @@ -49,7 +50,7 @@ int test__basic_mmap(void) sched_setaffinity(0, sizeof(cpu_set), &cpu_set); if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) { pr_debug("sched_setaffinity() failed on CPU %d: %s ", - cpus->map[0], strerror(errno)); + cpus->map[0], strerror_r(errno, sbuf, sizeof(sbuf))); goto out_free_cpus; } @@ -79,7 +80,7 @@ int test__basic_mmap(void) if (perf_evsel__open(evsels[i], cpus, threads) < 0) { pr_debug("failed to open counter: %s, " "tweak /proc/sys/kernel/perf_event_paranoid?\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -89,7 +90,7 @@ int test__basic_mmap(void) if (perf_evlist__mmap(evlist, 128, true) < 0) { pr_debug("failed to mmap events: %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } diff --git a/tools/perf/tests/open-syscall-all-cpus.c b/tools/perf/tests/open-syscall-all-cpus.c index 5fecdbd2f5f7..8fa82d1700c7 100644 --- a/tools/perf/tests/open-syscall-all-cpus.c +++ b/tools/perf/tests/open-syscall-all-cpus.c @@ -12,6 +12,7 @@ int test__open_syscall_event_on_all_cpus(void) unsigned int nr_open_calls = 111, i; cpu_set_t cpu_set; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); + char sbuf[STRERR_BUFSIZE]; if (threads == NULL) { pr_debug("thread_map__new\n"); @@ -35,7 +36,7 @@ int test__open_syscall_event_on_all_cpus(void) if (perf_evsel__open(evsel, cpus, threads) < 0) { pr_debug("failed to open counter: %s, " "tweak /proc/sys/kernel/perf_event_paranoid?\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_evsel_delete; } @@ -56,7 +57,7 @@ int test__open_syscall_event_on_all_cpus(void) if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) { pr_debug("sched_setaffinity() failed on CPU %d: %s ", cpus->map[cpu], - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_close_fd; } for (i = 0; i < ncalls; ++i) { diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c index c505ef2af245..127dcae0b760 100644 --- a/tools/perf/tests/open-syscall-tp-fields.c +++ b/tools/perf/tests/open-syscall-tp-fields.c @@ -3,6 +3,7 @@ #include "evsel.h" #include "thread_map.h" #include "tests.h" +#include "debug.h" int test__syscall_open_tp_fields(void) { @@ -21,6 +22,7 @@ int test__syscall_open_tp_fields(void) struct perf_evlist *evlist = perf_evlist__new(); struct perf_evsel *evsel; int err = -1, i, nr_events = 0, nr_polls = 0; + char sbuf[STRERR_BUFSIZE]; if (evlist == NULL) { pr_debug("%s: perf_evlist__new\n", __func__); @@ -47,13 +49,15 @@ int test__syscall_open_tp_fields(void) err = perf_evlist__open(evlist); if (err < 0) { - pr_debug("perf_evlist__open: %s\n", strerror(errno)); + pr_debug("perf_evlist__open: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } err = perf_evlist__mmap(evlist, UINT_MAX, false); if (err < 0) { - pr_debug("perf_evlist__mmap: %s\n", strerror(errno)); + pr_debug("perf_evlist__mmap: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -101,7 +105,7 @@ int test__syscall_open_tp_fields(void) } if (nr_events == before) - poll(evlist->pollfd, evlist->nr_fds, 10); + perf_evlist__poll(evlist, 10); if (++nr_polls > 5) { pr_debug("%s: no events!\n", __func__); diff --git a/tools/perf/tests/open-syscall.c b/tools/perf/tests/open-syscall.c index c1dc7d25f38c..a33b2daae40f 100644 --- a/tools/perf/tests/open-syscall.c +++ b/tools/perf/tests/open-syscall.c @@ -9,6 +9,7 @@ int test__open_syscall_event(void) struct perf_evsel *evsel; unsigned int nr_open_calls = 111, i; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); + char sbuf[STRERR_BUFSIZE]; if (threads == NULL) { pr_debug("thread_map__new\n"); @@ -24,7 +25,7 @@ int test__open_syscall_event(void) if (perf_evsel__open_per_thread(evsel, threads) < 0) { pr_debug("failed to open counter: %s, " "tweak /proc/sys/kernel/perf_event_paranoid?\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_evsel_delete; } diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index deba66955f8c..7f2f51f93619 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -5,6 +5,7 @@ #include <api/fs/fs.h> #include <api/fs/debugfs.h> #include "tests.h" +#include "debug.h" #include <linux/hw_breakpoint.h> #define PERF_TP_SAMPLE_TYPE (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | \ @@ -456,6 +457,36 @@ static int test__checkevent_pmu_events(struct perf_evlist *evlist) return 0; } + +static int test__checkevent_pmu_events_mix(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel = perf_evlist__first(evlist); + + /* pmu-event:u */ + TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries); + TEST_ASSERT_VAL("wrong exclude_user", + !evsel->attr.exclude_user); + TEST_ASSERT_VAL("wrong exclude_kernel", + evsel->attr.exclude_kernel); + TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); + TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip); + TEST_ASSERT_VAL("wrong pinned", !evsel->attr.pinned); + + /* cpu/pmu-event/u*/ + evsel = perf_evsel__next(evsel); + TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries); + TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type); + TEST_ASSERT_VAL("wrong exclude_user", + !evsel->attr.exclude_user); + TEST_ASSERT_VAL("wrong exclude_kernel", + evsel->attr.exclude_kernel); + TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); + TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip); + TEST_ASSERT_VAL("wrong pinned", !evsel->attr.pinned); + + return 0; +} + static int test__checkterms_simple(struct list_head *terms) { struct parse_events_term *term; @@ -1553,6 +1584,12 @@ static int test_pmu_events(void) e.check = test__checkevent_pmu_events; ret = test_event(&e); + if (ret) + break; + snprintf(name, MAX_NAME, "%s:u,cpu/event=%s/u", ent->d_name, ent->d_name); + e.name = name; + e.check = test__checkevent_pmu_events_mix; + ret = test_event(&e); #undef MAX_NAME } diff --git a/tools/perf/tests/parse-no-sample-id-all.c b/tools/perf/tests/parse-no-sample-id-all.c index 905019f9b740..2c63ea658541 100644 --- a/tools/perf/tests/parse-no-sample-id-all.c +++ b/tools/perf/tests/parse-no-sample-id-all.c @@ -7,6 +7,7 @@ #include "evlist.h" #include "header.h" #include "util.h" +#include "debug.h" static int process_event(struct perf_evlist **pevlist, union perf_event *event) { diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c index aca1a83dd13a..7a228a2a070b 100644 --- a/tools/perf/tests/perf-record.c +++ b/tools/perf/tests/perf-record.c @@ -59,6 +59,7 @@ int test__PERF_RECORD(void) int err = -1, errs = 0, i, wakeups = 0; u32 cpu; int total_events = 0, nr_events[PERF_RECORD_MAX] = { 0, }; + char sbuf[STRERR_BUFSIZE]; if (evlist == NULL || argv == NULL) { pr_debug("Not enough memory to create evlist\n"); @@ -100,7 +101,8 @@ int test__PERF_RECORD(void) err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask); if (err < 0) { - pr_debug("sched__get_first_possible_cpu: %s\n", strerror(errno)); + pr_debug("sched__get_first_possible_cpu: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -110,7 +112,8 @@ int test__PERF_RECORD(void) * So that we can check perf_sample.cpu on all the samples. */ if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, &cpu_mask) < 0) { - pr_debug("sched_setaffinity: %s\n", strerror(errno)); + pr_debug("sched_setaffinity: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -120,7 +123,8 @@ int test__PERF_RECORD(void) */ err = perf_evlist__open(evlist); if (err < 0) { - pr_debug("perf_evlist__open: %s\n", strerror(errno)); + pr_debug("perf_evlist__open: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -131,7 +135,8 @@ int test__PERF_RECORD(void) */ err = perf_evlist__mmap(evlist, opts.mmap_pages, false); if (err < 0) { - pr_debug("perf_evlist__mmap: %s\n", strerror(errno)); + pr_debug("perf_evlist__mmap: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -263,7 +268,7 @@ int test__PERF_RECORD(void) * perf_event_attr.wakeup_events, just PERF_EVENT_SAMPLE does. */ if (total_events == before && false) - poll(evlist->pollfd, evlist->nr_fds, -1); + perf_evlist__poll(evlist, -1); sleep(1); if (++wakeups > 5) { diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c index 3b7cd4d32dcb..f238442b238a 100644 --- a/tools/perf/tests/perf-time-to-tsc.c +++ b/tools/perf/tests/perf-time-to-tsc.c @@ -8,10 +8,9 @@ #include "evsel.h" #include "thread_map.h" #include "cpumap.h" +#include "tsc.h" #include "tests.h" -#include "../arch/x86/util/tsc.h" - #define CHECK__(x) { \ while ((x) < 0) { \ pr_debug(#x " failed!\n"); \ @@ -26,15 +25,6 @@ } \ } -static u64 rdtsc(void) -{ - unsigned int low, high; - - asm volatile("rdtsc" : "=a" (low), "=d" (high)); - - return low | ((u64)high) << 32; -} - /** * test__perf_time_to_tsc - test converting perf time to TSC. * diff --git a/tools/perf/tests/pmu.c b/tools/perf/tests/pmu.c index 12b322fa3475..eeb68bb1972d 100644 --- a/tools/perf/tests/pmu.c +++ b/tools/perf/tests/pmu.c @@ -152,7 +152,7 @@ int test__pmu(void) if (ret) break; - ret = perf_pmu__config_terms(&formats, &attr, terms); + ret = perf_pmu__config_terms(&formats, &attr, terms, false); if (ret) break; diff --git a/tools/perf/tests/rdpmc.c b/tools/perf/tests/rdpmc.c index e59143fd9e71..d31f2c4d9f64 100644 --- a/tools/perf/tests/rdpmc.c +++ b/tools/perf/tests/rdpmc.c @@ -6,6 +6,7 @@ #include "perf.h" #include "debug.h" #include "tests.h" +#include "cloexec.h" #if defined(__x86_64__) || defined(__i386__) @@ -99,22 +100,25 @@ static int __test__rdpmc(void) }; u64 delta_sum = 0; struct sigaction sa; + char sbuf[STRERR_BUFSIZE]; sigfillset(&sa.sa_mask); sa.sa_sigaction = segfault_handler; sigaction(SIGSEGV, &sa, NULL); - fd = sys_perf_event_open(&attr, 0, -1, -1, 0); + fd = sys_perf_event_open(&attr, 0, -1, -1, + perf_event_open_cloexec_flag()); if (fd < 0) { pr_err("Error: sys_perf_event_open() syscall returned " - "with %d (%s)\n", fd, strerror(errno)); + "with %d (%s)\n", fd, + strerror_r(errno, sbuf, sizeof(sbuf))); return -1; } addr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, fd, 0); if (addr == (void *)(-1)) { pr_err("Error: mmap() syscall returned with (%s)\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_close; } diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c index 7ae8d17db3d9..ca292f9a4ae2 100644 --- a/tools/perf/tests/sample-parsing.c +++ b/tools/perf/tests/sample-parsing.c @@ -4,6 +4,7 @@ #include "util.h" #include "event.h" #include "evsel.h" +#include "debug.h" #include "tests.h" diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c index 983d6b8562a8..1aa21c90731b 100644 --- a/tools/perf/tests/sw-clock.c +++ b/tools/perf/tests/sw-clock.c @@ -22,6 +22,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id) volatile int tmp = 0; u64 total_periods = 0; int nr_samples = 0; + char sbuf[STRERR_BUFSIZE]; union perf_event *event; struct perf_evsel *evsel; struct perf_evlist *evlist; @@ -62,14 +63,15 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id) err = -errno; pr_debug("Couldn't open evlist: %s\nHint: check %s, using %" PRIu64 " in this test.\n", - strerror(errno), knob, (u64)attr.sample_freq); + strerror_r(errno, sbuf, sizeof(sbuf)), + knob, (u64)attr.sample_freq); goto out_delete_evlist; } err = perf_evlist__mmap(evlist, 128, true); if (err < 0) { pr_debug("failed to mmap event: %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c new file mode 100644 index 000000000000..cc68648c7c55 --- /dev/null +++ b/tools/perf/tests/switch-tracking.c @@ -0,0 +1,572 @@ +#include <sys/time.h> +#include <sys/prctl.h> +#include <time.h> +#include <stdlib.h> + +#include "parse-events.h" +#include "evlist.h" +#include "evsel.h" +#include "thread_map.h" +#include "cpumap.h" +#include "tests.h" + +static int spin_sleep(void) +{ + struct timeval start, now, diff, maxtime; + struct timespec ts; + int err, i; + + maxtime.tv_sec = 0; + maxtime.tv_usec = 50000; + + err = gettimeofday(&start, NULL); + if (err) + return err; + + /* Spin for 50ms */ + while (1) { + for (i = 0; i < 1000; i++) + barrier(); + + err = gettimeofday(&now, NULL); + if (err) + return err; + + timersub(&now, &start, &diff); + if (timercmp(&diff, &maxtime, > /* For checkpatch */)) + break; + } + + ts.tv_nsec = 50 * 1000 * 1000; + ts.tv_sec = 0; + + /* Sleep for 50ms */ + err = nanosleep(&ts, NULL); + if (err == EINTR) + err = 0; + + return err; +} + +struct switch_tracking { + struct perf_evsel *switch_evsel; + struct perf_evsel *cycles_evsel; + pid_t *tids; + int nr_tids; + int comm_seen[4]; + int cycles_before_comm_1; + int cycles_between_comm_2_and_comm_3; + int cycles_after_comm_4; +}; + +static int check_comm(struct switch_tracking *switch_tracking, + union perf_event *event, const char *comm, int nr) +{ + if (event->header.type == PERF_RECORD_COMM && + (pid_t)event->comm.pid == getpid() && + (pid_t)event->comm.tid == getpid() && + strcmp(event->comm.comm, comm) == 0) { + if (switch_tracking->comm_seen[nr]) { + pr_debug("Duplicate comm event\n"); + return -1; + } + switch_tracking->comm_seen[nr] = 1; + pr_debug3("comm event: %s nr: %d\n", event->comm.comm, nr); + return 1; + } + return 0; +} + +static int check_cpu(struct switch_tracking *switch_tracking, int cpu) +{ + int i, nr = cpu + 1; + + if (cpu < 0) + return -1; + + if (!switch_tracking->tids) { + switch_tracking->tids = calloc(nr, sizeof(pid_t)); + if (!switch_tracking->tids) + return -1; + for (i = 0; i < nr; i++) + switch_tracking->tids[i] = -1; + switch_tracking->nr_tids = nr; + return 0; + } + + if (cpu >= switch_tracking->nr_tids) { + void *addr; + + addr = realloc(switch_tracking->tids, nr * sizeof(pid_t)); + if (!addr) + return -1; + switch_tracking->tids = addr; + for (i = switch_tracking->nr_tids; i < nr; i++) + switch_tracking->tids[i] = -1; + switch_tracking->nr_tids = nr; + return 0; + } + + return 0; +} + +static int process_sample_event(struct perf_evlist *evlist, + union perf_event *event, + struct switch_tracking *switch_tracking) +{ + struct perf_sample sample; + struct perf_evsel *evsel; + pid_t next_tid, prev_tid; + int cpu, err; + + if (perf_evlist__parse_sample(evlist, event, &sample)) { + pr_debug("perf_evlist__parse_sample failed\n"); + return -1; + } + + evsel = perf_evlist__id2evsel(evlist, sample.id); + if (evsel == switch_tracking->switch_evsel) { + next_tid = perf_evsel__intval(evsel, &sample, "next_pid"); + prev_tid = perf_evsel__intval(evsel, &sample, "prev_pid"); + cpu = sample.cpu; + pr_debug3("sched_switch: cpu: %d prev_tid %d next_tid %d\n", + cpu, prev_tid, next_tid); + err = check_cpu(switch_tracking, cpu); + if (err) + return err; + /* + * Check for no missing sched_switch events i.e. that the + * evsel->system_wide flag has worked. + */ + if (switch_tracking->tids[cpu] != -1 && + switch_tracking->tids[cpu] != prev_tid) { + pr_debug("Missing sched_switch events\n"); + return -1; + } + switch_tracking->tids[cpu] = next_tid; + } + + if (evsel == switch_tracking->cycles_evsel) { + pr_debug3("cycles event\n"); + if (!switch_tracking->comm_seen[0]) + switch_tracking->cycles_before_comm_1 = 1; + if (switch_tracking->comm_seen[1] && + !switch_tracking->comm_seen[2]) + switch_tracking->cycles_between_comm_2_and_comm_3 = 1; + if (switch_tracking->comm_seen[3]) + switch_tracking->cycles_after_comm_4 = 1; + } + + return 0; +} + +static int process_event(struct perf_evlist *evlist, union perf_event *event, + struct switch_tracking *switch_tracking) +{ + if (event->header.type == PERF_RECORD_SAMPLE) + return process_sample_event(evlist, event, switch_tracking); + + if (event->header.type == PERF_RECORD_COMM) { + int err, done = 0; + + err = check_comm(switch_tracking, event, "Test COMM 1", 0); + if (err < 0) + return -1; + done += err; + err = check_comm(switch_tracking, event, "Test COMM 2", 1); + if (err < 0) + return -1; + done += err; + err = check_comm(switch_tracking, event, "Test COMM 3", 2); + if (err < 0) + return -1; + done += err; + err = check_comm(switch_tracking, event, "Test COMM 4", 3); + if (err < 0) + return -1; + done += err; + if (done != 1) { + pr_debug("Unexpected comm event\n"); + return -1; + } + } + + return 0; +} + +struct event_node { + struct list_head list; + union perf_event *event; + u64 event_time; +}; + +static int add_event(struct perf_evlist *evlist, struct list_head *events, + union perf_event *event) +{ + struct perf_sample sample; + struct event_node *node; + + node = malloc(sizeof(struct event_node)); + if (!node) { + pr_debug("malloc failed\n"); + return -1; + } + node->event = event; + list_add(&node->list, events); + + if (perf_evlist__parse_sample(evlist, event, &sample)) { + pr_debug("perf_evlist__parse_sample failed\n"); + return -1; + } + + if (!sample.time) { + pr_debug("event with no time\n"); + return -1; + } + + node->event_time = sample.time; + + return 0; +} + +static void free_event_nodes(struct list_head *events) +{ + struct event_node *node; + + while (!list_empty(events)) { + node = list_entry(events->next, struct event_node, list); + list_del(&node->list); + free(node); + } +} + +static int compar(const void *a, const void *b) +{ + const struct event_node *nodea = a; + const struct event_node *nodeb = b; + s64 cmp = nodea->event_time - nodeb->event_time; + + return cmp; +} + +static int process_events(struct perf_evlist *evlist, + struct switch_tracking *switch_tracking) +{ + union perf_event *event; + unsigned pos, cnt = 0; + LIST_HEAD(events); + struct event_node *events_array, *node; + int i, ret; + + for (i = 0; i < evlist->nr_mmaps; i++) { + while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { + cnt += 1; + ret = add_event(evlist, &events, event); + perf_evlist__mmap_consume(evlist, i); + if (ret < 0) + goto out_free_nodes; + } + } + + events_array = calloc(cnt, sizeof(struct event_node)); + if (!events_array) { + pr_debug("calloc failed\n"); + ret = -1; + goto out_free_nodes; + } + + pos = 0; + list_for_each_entry(node, &events, list) + events_array[pos++] = *node; + + qsort(events_array, cnt, sizeof(struct event_node), compar); + + for (pos = 0; pos < cnt; pos++) { + ret = process_event(evlist, events_array[pos].event, + switch_tracking); + if (ret < 0) + goto out_free; + } + + ret = 0; +out_free: + pr_debug("%u events recorded\n", cnt); + free(events_array); +out_free_nodes: + free_event_nodes(&events); + return ret; +} + +/** + * test__switch_tracking - test using sched_switch and tracking events. + * + * This function implements a test that checks that sched_switch events and + * tracking events can be recorded for a workload (current process) using the + * evsel->system_wide and evsel->tracking flags (respectively) with other events + * sometimes enabled or disabled. + */ +int test__switch_tracking(void) +{ + const char *sched_switch = "sched:sched_switch"; + struct switch_tracking switch_tracking = { .tids = NULL, }; + struct record_opts opts = { + .mmap_pages = UINT_MAX, + .user_freq = UINT_MAX, + .user_interval = ULLONG_MAX, + .freq = 4000, + .target = { + .uses_mmap = true, + }, + }; + struct thread_map *threads = NULL; + struct cpu_map *cpus = NULL; + struct perf_evlist *evlist = NULL; + struct perf_evsel *evsel, *cpu_clocks_evsel, *cycles_evsel; + struct perf_evsel *switch_evsel, *tracking_evsel; + const char *comm; + int err = -1; + + threads = thread_map__new(-1, getpid(), UINT_MAX); + if (!threads) { + pr_debug("thread_map__new failed!\n"); + goto out_err; + } + + cpus = cpu_map__new(NULL); + if (!cpus) { + pr_debug("cpu_map__new failed!\n"); + goto out_err; + } + + evlist = perf_evlist__new(); + if (!evlist) { + pr_debug("perf_evlist__new failed!\n"); + goto out_err; + } + + perf_evlist__set_maps(evlist, cpus, threads); + + /* First event */ + err = parse_events(evlist, "cpu-clock:u"); + if (err) { + pr_debug("Failed to parse event dummy:u\n"); + goto out_err; + } + + cpu_clocks_evsel = perf_evlist__last(evlist); + + /* Second event */ + err = parse_events(evlist, "cycles:u"); + if (err) { + pr_debug("Failed to parse event cycles:u\n"); + goto out_err; + } + + cycles_evsel = perf_evlist__last(evlist); + + /* Third event */ + if (!perf_evlist__can_select_event(evlist, sched_switch)) { + fprintf(stderr, " (no sched_switch)"); + err = 0; + goto out; + } + + err = parse_events(evlist, sched_switch); + if (err) { + pr_debug("Failed to parse event %s\n", sched_switch); + goto out_err; + } + + switch_evsel = perf_evlist__last(evlist); + + perf_evsel__set_sample_bit(switch_evsel, CPU); + perf_evsel__set_sample_bit(switch_evsel, TIME); + + switch_evsel->system_wide = true; + switch_evsel->no_aux_samples = true; + switch_evsel->immediate = true; + + /* Test moving an event to the front */ + if (cycles_evsel == perf_evlist__first(evlist)) { + pr_debug("cycles event already at front"); + goto out_err; + } + perf_evlist__to_front(evlist, cycles_evsel); + if (cycles_evsel != perf_evlist__first(evlist)) { + pr_debug("Failed to move cycles event to front"); + goto out_err; + } + + perf_evsel__set_sample_bit(cycles_evsel, CPU); + perf_evsel__set_sample_bit(cycles_evsel, TIME); + + /* Fourth event */ + err = parse_events(evlist, "dummy:u"); + if (err) { + pr_debug("Failed to parse event dummy:u\n"); + goto out_err; + } + + tracking_evsel = perf_evlist__last(evlist); + + perf_evlist__set_tracking_event(evlist, tracking_evsel); + + tracking_evsel->attr.freq = 0; + tracking_evsel->attr.sample_period = 1; + + perf_evsel__set_sample_bit(tracking_evsel, TIME); + + /* Config events */ + perf_evlist__config(evlist, &opts); + + /* Check moved event is still at the front */ + if (cycles_evsel != perf_evlist__first(evlist)) { + pr_debug("Front event no longer at front"); + goto out_err; + } + + /* Check tracking event is tracking */ + if (!tracking_evsel->attr.mmap || !tracking_evsel->attr.comm) { + pr_debug("Tracking event not tracking\n"); + goto out_err; + } + + /* Check non-tracking events are not tracking */ + evlist__for_each(evlist, evsel) { + if (evsel != tracking_evsel) { + if (evsel->attr.mmap || evsel->attr.comm) { + pr_debug("Non-tracking event is tracking\n"); + goto out_err; + } + } + } + + if (perf_evlist__open(evlist) < 0) { + fprintf(stderr, " (not supported)"); + err = 0; + goto out; + } + + err = perf_evlist__mmap(evlist, UINT_MAX, false); + if (err) { + pr_debug("perf_evlist__mmap failed!\n"); + goto out_err; + } + + perf_evlist__enable(evlist); + + err = perf_evlist__disable_event(evlist, cpu_clocks_evsel); + if (err) { + pr_debug("perf_evlist__disable_event failed!\n"); + goto out_err; + } + + err = spin_sleep(); + if (err) { + pr_debug("spin_sleep failed!\n"); + goto out_err; + } + + comm = "Test COMM 1"; + err = prctl(PR_SET_NAME, (unsigned long)comm, 0, 0, 0); + if (err) { + pr_debug("PR_SET_NAME failed!\n"); + goto out_err; + } + + err = perf_evlist__disable_event(evlist, cycles_evsel); + if (err) { + pr_debug("perf_evlist__disable_event failed!\n"); + goto out_err; + } + + comm = "Test COMM 2"; + err = prctl(PR_SET_NAME, (unsigned long)comm, 0, 0, 0); + if (err) { + pr_debug("PR_SET_NAME failed!\n"); + goto out_err; + } + + err = spin_sleep(); + if (err) { + pr_debug("spin_sleep failed!\n"); + goto out_err; + } + + comm = "Test COMM 3"; + err = prctl(PR_SET_NAME, (unsigned long)comm, 0, 0, 0); + if (err) { + pr_debug("PR_SET_NAME failed!\n"); + goto out_err; + } + + err = perf_evlist__enable_event(evlist, cycles_evsel); + if (err) { + pr_debug("perf_evlist__disable_event failed!\n"); + goto out_err; + } + + comm = "Test COMM 4"; + err = prctl(PR_SET_NAME, (unsigned long)comm, 0, 0, 0); + if (err) { + pr_debug("PR_SET_NAME failed!\n"); + goto out_err; + } + + err = spin_sleep(); + if (err) { + pr_debug("spin_sleep failed!\n"); + goto out_err; + } + + perf_evlist__disable(evlist); + + switch_tracking.switch_evsel = switch_evsel; + switch_tracking.cycles_evsel = cycles_evsel; + + err = process_events(evlist, &switch_tracking); + + zfree(&switch_tracking.tids); + + if (err) + goto out_err; + + /* Check all 4 comm events were seen i.e. that evsel->tracking works */ + if (!switch_tracking.comm_seen[0] || !switch_tracking.comm_seen[1] || + !switch_tracking.comm_seen[2] || !switch_tracking.comm_seen[3]) { + pr_debug("Missing comm events\n"); + goto out_err; + } + + /* Check cycles event got enabled */ + if (!switch_tracking.cycles_before_comm_1) { + pr_debug("Missing cycles events\n"); + goto out_err; + } + + /* Check cycles event got disabled */ + if (switch_tracking.cycles_between_comm_2_and_comm_3) { + pr_debug("cycles events even though event was disabled\n"); + goto out_err; + } + + /* Check cycles event got enabled again */ + if (!switch_tracking.cycles_after_comm_4) { + pr_debug("Missing cycles events\n"); + goto out_err; + } +out: + if (evlist) { + perf_evlist__disable(evlist); + perf_evlist__delete(evlist); + } else { + cpu_map__delete(cpus); + thread_map__delete(threads); + } + + return err; + +out_err: + err = -1; + goto out; +} diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c index 5ff3db318f12..3a8fedef83bc 100644 --- a/tools/perf/tests/task-exit.c +++ b/tools/perf/tests/task-exit.c @@ -42,6 +42,7 @@ int test__task_exit(void) .uses_mmap = true, }; const char *argv[] = { "true", NULL }; + char sbuf[STRERR_BUFSIZE]; signal(SIGCHLD, sig_handler); @@ -82,13 +83,14 @@ int test__task_exit(void) err = perf_evlist__open(evlist); if (err < 0) { - pr_debug("Couldn't open the evlist: %s\n", strerror(-err)); + pr_debug("Couldn't open the evlist: %s\n", + strerror_r(-err, sbuf, sizeof(sbuf))); goto out_delete_evlist; } if (perf_evlist__mmap(evlist, 128, true) < 0) { pr_debug("failed to mmap events: %d (%s)\n", errno, - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; } @@ -103,7 +105,7 @@ retry: } if (!exited || !nr_exit) { - poll(evlist->pollfd, evlist->nr_fds, -1); + perf_evlist__poll(evlist, -1); goto retry; } diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index ed64790a395f..00e776a87a9c 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -48,6 +48,9 @@ int test__mmap_thread_lookup(void); int test__thread_mg_share(void); int test__hists_output(void); int test__hists_cumulate(void); +int test__switch_tracking(void); +int test__fdarray__filter(void); +int test__fdarray__add(void); #if defined(__x86_64__) || defined(__i386__) || defined(__arm__) #ifdef HAVE_DWARF_UNWIND_SUPPORT diff --git a/tools/perf/tests/thread-mg-share.c b/tools/perf/tests/thread-mg-share.c index 2b2e0dbe114f..b028499dd3cf 100644 --- a/tools/perf/tests/thread-mg-share.c +++ b/tools/perf/tests/thread-mg-share.c @@ -2,6 +2,7 @@ #include "machine.h" #include "thread.h" #include "map.h" +#include "debug.h" int test__thread_mg_share(void) { diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c index 3ccf6e14f89b..6680fa5cb9dd 100644 --- a/tools/perf/ui/browser.c +++ b/tools/perf/ui/browser.c @@ -150,7 +150,7 @@ unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser) while (nd != NULL) { ui_browser__gotorc(browser, row, 0); browser->write(browser, nd, row); - if (++row == browser->height) + if (++row == browser->rows) break; nd = rb_next(nd); } @@ -166,7 +166,7 @@ bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row) void ui_browser__refresh_dimensions(struct ui_browser *browser) { browser->width = SLtt_Screen_Cols - 1; - browser->height = SLtt_Screen_Rows - 2; + browser->height = browser->rows = SLtt_Screen_Rows - 2; browser->y = 1; browser->x = 0; } @@ -250,7 +250,10 @@ int ui_browser__show(struct ui_browser *browser, const char *title, int err; va_list ap; - ui_browser__refresh_dimensions(browser); + if (browser->refresh_dimensions == NULL) + browser->refresh_dimensions = ui_browser__refresh_dimensions; + + browser->refresh_dimensions(browser); pthread_mutex_lock(&ui__lock); __ui_browser__show_title(browser, title); @@ -279,7 +282,7 @@ static void ui_browser__scrollbar_set(struct ui_browser *browser) { int height = browser->height, h = 0, pct = 0, col = browser->width, - row = browser->y - 1; + row = 0; if (browser->nr_entries > 1) { pct = ((browser->index * (browser->height - 1)) / @@ -367,7 +370,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) if (key == K_RESIZE) { ui__refresh_dimensions(false); - ui_browser__refresh_dimensions(browser); + browser->refresh_dimensions(browser); __ui_browser__show_title(browser, browser->title); ui_helpline__puts(browser->helpline); continue; @@ -389,7 +392,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) if (browser->index == browser->nr_entries - 1) break; ++browser->index; - if (browser->index == browser->top_idx + browser->height) { + if (browser->index == browser->top_idx + browser->rows) { ++browser->top_idx; browser->seek(browser, +1, SEEK_CUR); } @@ -405,10 +408,10 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) break; case K_PGDN: case ' ': - if (browser->top_idx + browser->height > browser->nr_entries - 1) + if (browser->top_idx + browser->rows > browser->nr_entries - 1) break; - offset = browser->height; + offset = browser->rows; if (browser->index + offset > browser->nr_entries - 1) offset = browser->nr_entries - 1 - browser->index; browser->index += offset; @@ -419,10 +422,10 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) if (browser->top_idx == 0) break; - if (browser->top_idx < browser->height) + if (browser->top_idx < browser->rows) offset = browser->top_idx; else - offset = browser->height; + offset = browser->rows; browser->index -= offset; browser->top_idx -= offset; @@ -432,7 +435,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) ui_browser__reset_index(browser); break; case K_END: - offset = browser->height - 1; + offset = browser->rows - 1; if (offset >= browser->nr_entries) offset = browser->nr_entries - 1; @@ -462,7 +465,7 @@ unsigned int ui_browser__list_head_refresh(struct ui_browser *browser) if (!browser->filter || !browser->filter(browser, pos)) { ui_browser__gotorc(browser, row, 0); browser->write(browser, pos, row); - if (++row == browser->height) + if (++row == browser->rows) break; } } @@ -587,7 +590,7 @@ unsigned int ui_browser__argv_refresh(struct ui_browser *browser) if (!browser->filter || !browser->filter(browser, *pos)) { ui_browser__gotorc(browser, row, 0); browser->write(browser, pos, row); - if (++row == browser->height) + if (++row == browser->rows) break; } @@ -623,7 +626,7 @@ static void __ui_browser__line_arrow_up(struct ui_browser *browser, SLsmg_set_char_set(1); - if (start < browser->top_idx + browser->height) { + if (start < browser->top_idx + browser->rows) { row = start - browser->top_idx; ui_browser__gotorc(browser, row, column); SLsmg_write_char(SLSMG_LLCORN_CHAR); @@ -633,7 +636,7 @@ static void __ui_browser__line_arrow_up(struct ui_browser *browser, if (row-- == 0) goto out; } else - row = browser->height - 1; + row = browser->rows - 1; if (end > browser->top_idx) end_row = end - browser->top_idx; @@ -675,8 +678,8 @@ static void __ui_browser__line_arrow_down(struct ui_browser *browser, } else row = 0; - if (end >= browser->top_idx + browser->height) - end_row = browser->height - 1; + if (end >= browser->top_idx + browser->rows) + end_row = browser->rows - 1; else end_row = end - browser->top_idx; @@ -684,7 +687,7 @@ static void __ui_browser__line_arrow_down(struct ui_browser *browser, SLsmg_draw_vline(end_row - row + 1); ui_browser__gotorc(browser, end_row, column); - if (end < browser->top_idx + browser->height) { + if (end < browser->top_idx + browser->rows) { SLsmg_write_char(SLSMG_LLCORN_CHAR); ui_browser__gotorc(browser, end_row, column + 1); SLsmg_write_char(SLSMG_HLINE_CHAR); diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h index 03d4d6295f10..92ae72113965 100644 --- a/tools/perf/ui/browser.h +++ b/tools/perf/ui/browser.h @@ -14,11 +14,12 @@ struct ui_browser { u64 index, top_idx; void *top, *entries; - u16 y, x, width, height; + u16 y, x, width, height, rows; int current_color; void *priv; const char *title; char *helpline; + void (*refresh_dimensions)(struct ui_browser *browser); unsigned int (*refresh)(struct ui_browser *browser); void (*write)(struct ui_browser *browser, void *entry, int row); void (*seek)(struct ui_browser *browser, off_t offset, int whence); diff --git a/tools/perf/ui/browsers/header.c b/tools/perf/ui/browsers/header.c index 89c16b988618..e8278c558d4a 100644 --- a/tools/perf/ui/browsers/header.c +++ b/tools/perf/ui/browsers/header.c @@ -1,6 +1,7 @@ #include "util/cache.h" #include "util/debug.h" #include "ui/browser.h" +#include "ui/keysyms.h" #include "ui/ui.h" #include "ui/util.h" #include "ui/libslang.h" diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 04a229aa5c0f..cfb976b3de3a 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -10,6 +10,7 @@ #include "../../util/pstack.h" #include "../../util/sort.h" #include "../../util/util.h" +#include "../../util/top.h" #include "../../arch/common.h" #include "../browser.h" @@ -26,6 +27,7 @@ struct hist_browser { struct map_symbol *selection; int print_seq; bool show_dso; + bool show_headers; float min_pcnt; u64 nr_non_filtered_entries; u64 nr_callchain_rows; @@ -33,8 +35,9 @@ struct hist_browser { extern void hist_browser__init_hpp(void); -static int hists__browser_title(struct hists *hists, char *bf, size_t size, - const char *ev_name); +static int hists__browser_title(struct hists *hists, + struct hist_browser_timer *hbt, + char *bf, size_t size); static void hist_browser__update_nr_entries(struct hist_browser *hb); static struct rb_node *hists__filter_entries(struct rb_node *nd, @@ -57,11 +60,42 @@ static u32 hist_browser__nr_entries(struct hist_browser *hb) return nr_entries + hb->nr_callchain_rows; } -static void hist_browser__refresh_dimensions(struct hist_browser *browser) +static void hist_browser__update_rows(struct hist_browser *hb) { + struct ui_browser *browser = &hb->b; + u16 header_offset = hb->show_headers ? 1 : 0, index_row; + + browser->rows = browser->height - header_offset; + /* + * Verify if we were at the last line and that line isn't + * visibe because we now show the header line(s). + */ + index_row = browser->index - browser->top_idx; + if (index_row >= browser->rows) + browser->index -= index_row - browser->rows + 1; +} + +static void hist_browser__refresh_dimensions(struct ui_browser *browser) +{ + struct hist_browser *hb = container_of(browser, struct hist_browser, b); + /* 3 == +/- toggle symbol before actual hist_entry rendering */ - browser->b.width = 3 + (hists__sort_list_width(browser->hists) + - sizeof("[k]")); + browser->width = 3 + (hists__sort_list_width(hb->hists) + sizeof("[k]")); + /* + * FIXME: Just keeping existing behaviour, but this really should be + * before updating browser->width, as it will invalidate the + * calculation above. Fix this and the fallout in another + * changeset. + */ + ui_browser__refresh_dimensions(browser); + hist_browser__update_rows(hb); +} + +static void hist_browser__gotorc(struct hist_browser *browser, int row, int column) +{ + u16 header_offset = browser->show_headers ? 1 : 0; + + ui_browser__gotorc(&browser->b, row + header_offset, column); } static void hist_browser__reset(struct hist_browser *browser) @@ -74,7 +108,7 @@ static void hist_browser__reset(struct hist_browser *browser) hist_browser__update_nr_entries(browser); browser->b.nr_entries = hist_browser__nr_entries(browser); - hist_browser__refresh_dimensions(browser); + hist_browser__refresh_dimensions(&browser->b); ui_browser__reset_index(&browser->b); } @@ -197,8 +231,10 @@ static void callchain_node__init_have_children(struct callchain_node *node) { struct callchain_list *chain; - list_for_each_entry(chain, &node->val, list) + if (!list_empty(&node->val)) { + chain = list_entry(node->val.prev, struct callchain_list, list); chain->ms.has_children = !RB_EMPTY_ROOT(&node->rb_root); + } callchain_node__init_have_children_rb_tree(node); } @@ -346,7 +382,7 @@ static void ui_browser__warn_lost_events(struct ui_browser *browser) "Or reduce the sampling frequency."); } -static int hist_browser__run(struct hist_browser *browser, const char *ev_name, +static int hist_browser__run(struct hist_browser *browser, struct hist_browser_timer *hbt) { int key; @@ -356,8 +392,7 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name, browser->b.entries = &browser->hists->entries; browser->b.nr_entries = hist_browser__nr_entries(browser); - hist_browser__refresh_dimensions(browser); - hists__browser_title(browser->hists, title, sizeof(title), ev_name); + hists__browser_title(browser->hists, hbt, title, sizeof(title)); if (ui_browser__show(&browser->b, title, "Press '?' for help on key bindings") < 0) @@ -384,7 +419,8 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name, ui_browser__warn_lost_events(&browser->b); } - hists__browser_title(browser->hists, title, sizeof(title), ev_name); + hists__browser_title(browser->hists, + hbt, title, sizeof(title)); ui_browser__show_title(&browser->b, title); continue; } @@ -393,10 +429,10 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name, struct hist_entry *h = rb_entry(browser->b.top, struct hist_entry, rb_node); ui_helpline__pop(); - ui_helpline__fpush("%d: nr_ent=(%d,%d), height=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d", + ui_helpline__fpush("%d: nr_ent=(%d,%d), rows=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d", seq++, browser->b.nr_entries, browser->hists->nr_entries, - browser->b.height, + browser->b.rows, browser->b.index, browser->b.top_idx, h->row_offset, h->nr_rows); @@ -410,6 +446,10 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name, /* Expand the whole world. */ hist_browser__set_folding(browser, true); break; + case 'H': + browser->show_headers = !browser->show_headers; + hist_browser__update_rows(browser); + break; case K_ENTER: if (hist_browser__toggle_fold(browser)) break; @@ -440,26 +480,87 @@ static char *callchain_list__sym_name(struct callchain_list *cl, return bf; } +struct callchain_print_arg { + /* for hists browser */ + off_t row_offset; + bool is_current_entry; + + /* for file dump */ + FILE *fp; + int printed; +}; + +typedef void (*print_callchain_entry_fn)(struct hist_browser *browser, + struct callchain_list *chain, + const char *str, int offset, + unsigned short row, + struct callchain_print_arg *arg); + +static void hist_browser__show_callchain_entry(struct hist_browser *browser, + struct callchain_list *chain, + const char *str, int offset, + unsigned short row, + struct callchain_print_arg *arg) +{ + int color, width; + char folded_sign = callchain_list__folded(chain); + + color = HE_COLORSET_NORMAL; + width = browser->b.width - (offset + 2); + if (ui_browser__is_current_entry(&browser->b, row)) { + browser->selection = &chain->ms; + color = HE_COLORSET_SELECTED; + arg->is_current_entry = true; + } + + ui_browser__set_color(&browser->b, color); + hist_browser__gotorc(browser, row, 0); + slsmg_write_nstring(" ", offset); + slsmg_printf("%c ", folded_sign); + slsmg_write_nstring(str, width); +} + +static void hist_browser__fprintf_callchain_entry(struct hist_browser *b __maybe_unused, + struct callchain_list *chain, + const char *str, int offset, + unsigned short row __maybe_unused, + struct callchain_print_arg *arg) +{ + char folded_sign = callchain_list__folded(chain); + + arg->printed += fprintf(arg->fp, "%*s%c %s\n", offset, " ", + folded_sign, str); +} + +typedef bool (*check_output_full_fn)(struct hist_browser *browser, + unsigned short row); + +static bool hist_browser__check_output_full(struct hist_browser *browser, + unsigned short row) +{ + return browser->b.rows == row; +} + +static bool hist_browser__check_dump_full(struct hist_browser *browser __maybe_unused, + unsigned short row __maybe_unused) +{ + return false; +} + #define LEVEL_OFFSET_STEP 3 -static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *browser, - struct callchain_node *chain_node, - u64 total, int level, - unsigned short row, - off_t *row_offset, - bool *is_current_entry) +static int hist_browser__show_callchain(struct hist_browser *browser, + struct rb_root *root, int level, + unsigned short row, u64 total, + print_callchain_entry_fn print, + struct callchain_print_arg *arg, + check_output_full_fn is_output_full) { struct rb_node *node; - int first_row = row, width, offset = level * LEVEL_OFFSET_STEP; - u64 new_total, remaining; + int first_row = row, offset = level * LEVEL_OFFSET_STEP; + u64 new_total; - if (callchain_param.mode == CHAIN_GRAPH_REL) - new_total = chain_node->children_hit; - else - new_total = total; - - remaining = new_total; - node = rb_first(&chain_node->rb_root); + node = rb_first(root); while (node) { struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node); struct rb_node *next = rb_next(node); @@ -469,30 +570,28 @@ static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *browse int first = true; int extra_offset = 0; - remaining -= cumul; - list_for_each_entry(chain, &child->val, list) { char bf[1024], *alloc_str; const char *str; - int color; bool was_first = first; if (first) first = false; - else + else if (level > 1) extra_offset = LEVEL_OFFSET_STEP; folded_sign = callchain_list__folded(chain); - if (*row_offset != 0) { - --*row_offset; + if (arg->row_offset != 0) { + arg->row_offset--; goto do_next; } alloc_str = NULL; str = callchain_list__sym_name(chain, bf, sizeof(bf), browser->show_dso); - if (was_first) { - double percent = cumul * 100.0 / new_total; + + if (was_first && level > 1) { + double percent = cumul * 100.0 / total; if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0) str = "Not enough memory!"; @@ -500,22 +599,11 @@ static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *browse str = alloc_str; } - color = HE_COLORSET_NORMAL; - width = browser->b.width - (offset + extra_offset + 2); - if (ui_browser__is_current_entry(&browser->b, row)) { - browser->selection = &chain->ms; - color = HE_COLORSET_SELECTED; - *is_current_entry = true; - } + print(browser, chain, str, offset + extra_offset, row, arg); - ui_browser__set_color(&browser->b, color); - ui_browser__gotorc(&browser->b, row, 0); - slsmg_write_nstring(" ", offset + extra_offset); - slsmg_printf("%c ", folded_sign); - slsmg_write_nstring(str, width); free(alloc_str); - if (++row == browser->b.height) + if (is_output_full(browser, ++row)) goto out; do_next: if (folded_sign == '+') @@ -524,89 +612,21 @@ do_next: if (folded_sign == '-') { const int new_level = level + (extra_offset ? 2 : 1); - row += hist_browser__show_callchain_node_rb_tree(browser, child, new_total, - new_level, row, row_offset, - is_current_entry); - } - if (row == browser->b.height) - goto out; - node = next; - } -out: - return row - first_row; -} - -static int hist_browser__show_callchain_node(struct hist_browser *browser, - struct callchain_node *node, - int level, unsigned short row, - off_t *row_offset, - bool *is_current_entry) -{ - struct callchain_list *chain; - int first_row = row, - offset = level * LEVEL_OFFSET_STEP, - width = browser->b.width - offset; - char folded_sign = ' '; - - list_for_each_entry(chain, &node->val, list) { - char bf[1024], *s; - int color; - - folded_sign = callchain_list__folded(chain); - if (*row_offset != 0) { - --*row_offset; - continue; - } + if (callchain_param.mode == CHAIN_GRAPH_REL) + new_total = child->children_hit; + else + new_total = total; - color = HE_COLORSET_NORMAL; - if (ui_browser__is_current_entry(&browser->b, row)) { - browser->selection = &chain->ms; - color = HE_COLORSET_SELECTED; - *is_current_entry = true; + row += hist_browser__show_callchain(browser, &child->rb_root, + new_level, row, new_total, + print, arg, is_output_full); } - - s = callchain_list__sym_name(chain, bf, sizeof(bf), - browser->show_dso); - ui_browser__gotorc(&browser->b, row, 0); - ui_browser__set_color(&browser->b, color); - slsmg_write_nstring(" ", offset); - slsmg_printf("%c ", folded_sign); - slsmg_write_nstring(s, width - 2); - - if (++row == browser->b.height) - goto out; - } - - if (folded_sign == '-') - row += hist_browser__show_callchain_node_rb_tree(browser, node, - browser->hists->stats.total_period, - level + 1, row, - row_offset, - is_current_entry); -out: - return row - first_row; -} - -static int hist_browser__show_callchain(struct hist_browser *browser, - struct rb_root *chain, - int level, unsigned short row, - off_t *row_offset, - bool *is_current_entry) -{ - struct rb_node *nd; - int first_row = row; - - for (nd = rb_first(chain); nd; nd = rb_next(nd)) { - struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node); - - row += hist_browser__show_callchain_node(browser, node, level, - row, row_offset, - is_current_entry); - if (row == browser->b.height) + if (is_output_full(browser, row)) break; + node = next; } - +out: return row - first_row; } @@ -619,17 +639,18 @@ struct hpp_arg { static int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...) { struct hpp_arg *arg = hpp->ptr; - int ret; + int ret, len; va_list args; double percent; va_start(args, fmt); + len = va_arg(args, int); percent = va_arg(args, double); va_end(args); ui_browser__set_percent_color(arg->b, percent, arg->current_entry); - ret = scnprintf(hpp->buf, hpp->size, fmt, percent); + ret = scnprintf(hpp->buf, hpp->size, fmt, len, percent); slsmg_printf("%s", hpp->buf); advance_hpp(hpp, ret); @@ -643,12 +664,12 @@ static u64 __hpp_get_##_field(struct hist_entry *he) \ } \ \ static int \ -hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\ +hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, \ struct hist_entry *he) \ { \ - return __hpp__fmt(hpp, he, __hpp_get_##_field, " %6.2f%%", \ - __hpp__slsmg_color_printf, true); \ + return hpp__fmt(fmt, hpp, he, __hpp_get_##_field, " %*.2f%%", \ + __hpp__slsmg_color_printf, true); \ } #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \ @@ -658,18 +679,20 @@ static u64 __hpp_get_acc_##_field(struct hist_entry *he) \ } \ \ static int \ -hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\ +hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, \ struct hist_entry *he) \ { \ if (!symbol_conf.cumulate_callchain) { \ - int ret = scnprintf(hpp->buf, hpp->size, "%8s", "N/A"); \ + int len = fmt->user_len ?: fmt->len; \ + int ret = scnprintf(hpp->buf, hpp->size, \ + "%*s", len, "N/A"); \ slsmg_printf("%s", hpp->buf); \ \ return ret; \ } \ - return __hpp__fmt(hpp, he, __hpp_get_acc_##_field, " %6.2f%%", \ - __hpp__slsmg_color_printf, true); \ + return hpp__fmt(fmt, hpp, he, __hpp_get_acc_##_field, \ + " %*.2f%%", __hpp__slsmg_color_printf, true); \ } __HPP_COLOR_PERCENT_FN(overhead, period) @@ -733,7 +756,7 @@ static int hist_browser__show_entry(struct hist_browser *browser, .ptr = &arg, }; - ui_browser__gotorc(&browser->b, row, 0); + hist_browser__gotorc(browser, row, 0); perf_hpp__for_each_format(fmt) { if (perf_hpp__should_skip(fmt)) @@ -777,17 +800,72 @@ static int hist_browser__show_entry(struct hist_browser *browser, } else --row_offset; - if (folded_sign == '-' && row != browser->b.height) { - printed += hist_browser__show_callchain(browser, &entry->sorted_chain, - 1, row, &row_offset, - ¤t_entry); - if (current_entry) + if (folded_sign == '-' && row != browser->b.rows) { + u64 total = hists__total_period(entry->hists); + struct callchain_print_arg arg = { + .row_offset = row_offset, + .is_current_entry = current_entry, + }; + + printed += hist_browser__show_callchain(browser, + &entry->sorted_chain, 1, row, total, + hist_browser__show_callchain_entry, &arg, + hist_browser__check_output_full); + + if (arg.is_current_entry) browser->he_selection = entry; } return printed; } +static int advance_hpp_check(struct perf_hpp *hpp, int inc) +{ + advance_hpp(hpp, inc); + return hpp->size <= 0; +} + +static int hists__scnprintf_headers(char *buf, size_t size, struct hists *hists) +{ + struct perf_hpp dummy_hpp = { + .buf = buf, + .size = size, + }; + struct perf_hpp_fmt *fmt; + size_t ret = 0; + + if (symbol_conf.use_callchain) { + ret = scnprintf(buf, size, " "); + if (advance_hpp_check(&dummy_hpp, ret)) + return ret; + } + + perf_hpp__for_each_format(fmt) { + if (perf_hpp__should_skip(fmt)) + continue; + + ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists)); + if (advance_hpp_check(&dummy_hpp, ret)) + break; + + ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " "); + if (advance_hpp_check(&dummy_hpp, ret)) + break; + } + + return ret; +} + +static void hist_browser__show_headers(struct hist_browser *browser) +{ + char headers[1024]; + + hists__scnprintf_headers(headers, sizeof(headers), browser->hists); + ui_browser__gotorc(&browser->b, 0, 0); + ui_browser__set_color(&browser->b, HE_COLORSET_ROOT); + slsmg_write_nstring(headers, browser->b.width + 1); +} + static void ui_browser__hists_init_top(struct ui_browser *browser) { if (browser->top == NULL) { @@ -801,9 +879,15 @@ static void ui_browser__hists_init_top(struct ui_browser *browser) static unsigned int hist_browser__refresh(struct ui_browser *browser) { unsigned row = 0; + u16 header_offset = 0; struct rb_node *nd; struct hist_browser *hb = container_of(browser, struct hist_browser, b); + if (hb->show_headers) { + hist_browser__show_headers(hb); + header_offset = 1; + } + ui_browser__hists_init_top(browser); for (nd = browser->top; nd; nd = rb_next(nd)) { @@ -818,11 +902,11 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser) continue; row += hist_browser__show_entry(hb, h, row); - if (row == browser->height) + if (row == browser->rows) break; } - return row; + return row + header_offset; } static struct rb_node *hists__filter_entries(struct rb_node *nd, @@ -984,113 +1068,21 @@ do_offset: } } -static int hist_browser__fprintf_callchain_node_rb_tree(struct hist_browser *browser, - struct callchain_node *chain_node, - u64 total, int level, - FILE *fp) -{ - struct rb_node *node; - int offset = level * LEVEL_OFFSET_STEP; - u64 new_total, remaining; - int printed = 0; - - if (callchain_param.mode == CHAIN_GRAPH_REL) - new_total = chain_node->children_hit; - else - new_total = total; - - remaining = new_total; - node = rb_first(&chain_node->rb_root); - while (node) { - struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node); - struct rb_node *next = rb_next(node); - u64 cumul = callchain_cumul_hits(child); - struct callchain_list *chain; - char folded_sign = ' '; - int first = true; - int extra_offset = 0; - - remaining -= cumul; - - list_for_each_entry(chain, &child->val, list) { - char bf[1024], *alloc_str; - const char *str; - bool was_first = first; - - if (first) - first = false; - else - extra_offset = LEVEL_OFFSET_STEP; - - folded_sign = callchain_list__folded(chain); - - alloc_str = NULL; - str = callchain_list__sym_name(chain, bf, sizeof(bf), - browser->show_dso); - if (was_first) { - double percent = cumul * 100.0 / new_total; - - if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0) - str = "Not enough memory!"; - else - str = alloc_str; - } - - printed += fprintf(fp, "%*s%c %s\n", offset + extra_offset, " ", folded_sign, str); - free(alloc_str); - if (folded_sign == '+') - break; - } - - if (folded_sign == '-') { - const int new_level = level + (extra_offset ? 2 : 1); - printed += hist_browser__fprintf_callchain_node_rb_tree(browser, child, new_total, - new_level, fp); - } - - node = next; - } - - return printed; -} - -static int hist_browser__fprintf_callchain_node(struct hist_browser *browser, - struct callchain_node *node, - int level, FILE *fp) -{ - struct callchain_list *chain; - int offset = level * LEVEL_OFFSET_STEP; - char folded_sign = ' '; - int printed = 0; - - list_for_each_entry(chain, &node->val, list) { - char bf[1024], *s; - - folded_sign = callchain_list__folded(chain); - s = callchain_list__sym_name(chain, bf, sizeof(bf), browser->show_dso); - printed += fprintf(fp, "%*s%c %s\n", offset, " ", folded_sign, s); - } - - if (folded_sign == '-') - printed += hist_browser__fprintf_callchain_node_rb_tree(browser, node, - browser->hists->stats.total_period, - level + 1, fp); - return printed; -} - static int hist_browser__fprintf_callchain(struct hist_browser *browser, - struct rb_root *chain, int level, FILE *fp) + struct hist_entry *he, FILE *fp) { - struct rb_node *nd; - int printed = 0; - - for (nd = rb_first(chain); nd; nd = rb_next(nd)) { - struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node); + u64 total = hists__total_period(he->hists); + struct callchain_print_arg arg = { + .fp = fp, + }; - printed += hist_browser__fprintf_callchain_node(browser, node, level, fp); - } + if (symbol_conf.cumulate_callchain) + total = he->stat_acc->period; - return printed; + hist_browser__show_callchain(browser, &he->sorted_chain, 1, 0, total, + hist_browser__fprintf_callchain_entry, &arg, + hist_browser__check_dump_full); + return arg.printed; } static int hist_browser__fprintf_entry(struct hist_browser *browser, @@ -1129,7 +1121,7 @@ static int hist_browser__fprintf_entry(struct hist_browser *browser, printed += fprintf(fp, "%s\n", rtrim(s)); if (folded_sign == '-') - printed += hist_browser__fprintf_callchain(browser, &he->sorted_chain, 1, fp); + printed += hist_browser__fprintf_callchain(browser, he, fp); return printed; } @@ -1191,8 +1183,10 @@ static struct hist_browser *hist_browser__new(struct hists *hists) if (browser) { browser->hists = hists; browser->b.refresh = hist_browser__refresh; + browser->b.refresh_dimensions = hist_browser__refresh_dimensions; browser->b.seek = ui_browser__hists_seek; browser->b.use_navkeypressed = true; + browser->show_headers = symbol_conf.show_hist_headers; } return browser; @@ -1213,8 +1207,15 @@ static struct thread *hist_browser__selected_thread(struct hist_browser *browser return browser->he_selection->thread; } -static int hists__browser_title(struct hists *hists, char *bf, size_t size, - const char *ev_name) +/* Check whether the browser is for 'top' or 'report' */ +static inline bool is_report_browser(void *timer) +{ + return timer == NULL; +} + +static int hists__browser_title(struct hists *hists, + struct hist_browser_timer *hbt, + char *bf, size_t size) { char unit; int printed; @@ -1223,6 +1224,7 @@ static int hists__browser_title(struct hists *hists, char *bf, size_t size, unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; u64 nr_events = hists->stats.total_period; struct perf_evsel *evsel = hists_to_evsel(hists); + const char *ev_name = perf_evsel__name(evsel); char buf[512]; size_t buflen = sizeof(buf); @@ -1238,12 +1240,14 @@ static int hists__browser_title(struct hists *hists, char *bf, size_t size, ev_name = buf; for_each_group_member(pos, evsel) { + struct hists *pos_hists = evsel__hists(pos); + if (symbol_conf.filter_relative) { - nr_samples += pos->hists.stats.nr_non_filtered_samples; - nr_events += pos->hists.stats.total_non_filtered_period; + nr_samples += pos_hists->stats.nr_non_filtered_samples; + nr_events += pos_hists->stats.total_non_filtered_period; } else { - nr_samples += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE]; - nr_events += pos->hists.stats.total_period; + nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE]; + nr_events += pos_hists->stats.total_period; } } } @@ -1265,6 +1269,13 @@ static int hists__browser_title(struct hists *hists, char *bf, size_t size, if (dso) printed += scnprintf(bf + printed, size - printed, ", DSO: %s", dso->short_name); + if (!is_report_browser(hbt)) { + struct perf_top *top = hbt->arg; + + if (top->zero) + printed += scnprintf(bf + printed, size - printed, " [z]"); + } + return printed; } @@ -1276,12 +1287,6 @@ static inline void free_popup_options(char **options, int n) zfree(&options[i]); } -/* Check whether the browser is for 'top' or 'report' */ -static inline bool is_report_browser(void *timer) -{ - return timer == NULL; -} - /* * Only runtime switching of perf data file will make "input_name" point * to a malloced buffer. So add "is_input_name_malloced" flag to decide @@ -1390,13 +1395,13 @@ static void hist_browser__update_nr_entries(struct hist_browser *hb) } static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, - const char *helpline, const char *ev_name, + const char *helpline, bool left_exits, struct hist_browser_timer *hbt, float min_pcnt, struct perf_session_env *env) { - struct hists *hists = &evsel->hists; + struct hists *hists = evsel__hists(evsel); struct hist_browser *browser = hist_browser__new(hists); struct branch_info *bi; struct pstack *fstack; @@ -1406,6 +1411,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, char buf[64]; char script_opt[64]; int delay_secs = hbt ? hbt->refresh : 0; + struct perf_hpp_fmt *fmt; #define HIST_BROWSER_HELP_COMMON \ "h/?/F1 Show this window\n" \ @@ -1422,6 +1428,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, "d Zoom into current DSO\n" \ "E Expand all callchains\n" \ "F Toggle percentage of filtered entries\n" \ + "H Display column headers\n" \ /* help messages are sorted by lexical order of the hotkey */ const char report_help[] = HIST_BROWSER_HELP_COMMON @@ -1436,6 +1443,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, "P Print histograms to perf.hist.N\n" "t Zoom into current Thread\n" "V Verbose (DSO names in callchains, etc)\n" + "z Toggle zeroing of samples\n" "/ Filter symbol by name"; if (browser == NULL) @@ -1454,6 +1462,12 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, memset(options, 0, sizeof(options)); + perf_hpp__for_each_format(fmt) + perf_hpp__reset_width(fmt, hists); + + if (symbol_conf.col_width_list_str) + perf_hpp__set_user_width(symbol_conf.col_width_list_str); + while (1) { const struct thread *thread = NULL; const struct dso *dso = NULL; @@ -1465,7 +1479,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, nr_options = 0; - key = hist_browser__run(browser, ev_name, hbt); + key = hist_browser__run(browser, hbt); if (browser->he_selection != NULL) { thread = hist_browser__selected_thread(browser); @@ -1530,6 +1544,13 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, case 'F': symbol_conf.filter_relative ^= 1; continue; + case 'z': + if (!is_report_browser(hbt)) { + struct perf_top *top = hbt->arg; + + top->zero = !top->zero; + } + continue; case K_F1: case 'h': case '?': @@ -1795,8 +1816,9 @@ static void perf_evsel_menu__write(struct ui_browser *browser, struct perf_evsel_menu *menu = container_of(browser, struct perf_evsel_menu, b); struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node); + struct hists *hists = evsel__hists(evsel); bool current_entry = ui_browser__is_current_entry(browser, row); - unsigned long nr_events = evsel->hists.stats.nr_events[PERF_RECORD_SAMPLE]; + unsigned long nr_events = hists->stats.nr_events[PERF_RECORD_SAMPLE]; const char *ev_name = perf_evsel__name(evsel); char bf[256], unit; const char *warn = " "; @@ -1811,7 +1833,8 @@ static void perf_evsel_menu__write(struct ui_browser *browser, ev_name = perf_evsel__group_name(evsel); for_each_group_member(pos, evsel) { - nr_events += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE]; + struct hists *pos_hists = evsel__hists(pos); + nr_events += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE]; } } @@ -1820,7 +1843,7 @@ static void perf_evsel_menu__write(struct ui_browser *browser, unit, unit == ' ' ? "" : " ", ev_name); slsmg_printf("%s", bf); - nr_events = evsel->hists.stats.nr_events[PERF_RECORD_LOST]; + nr_events = hists->stats.nr_events[PERF_RECORD_LOST]; if (nr_events != 0) { menu->lost_events = true; if (!current_entry) @@ -1843,7 +1866,7 @@ static int perf_evsel_menu__run(struct perf_evsel_menu *menu, { struct perf_evlist *evlist = menu->b.priv; struct perf_evsel *pos; - const char *ev_name, *title = "Available samples"; + const char *title = "Available samples"; int delay_secs = hbt ? hbt->refresh : 0; int key; @@ -1876,9 +1899,8 @@ browse_hists: */ if (hbt) hbt->timer(hbt->arg); - ev_name = perf_evsel__name(pos); key = perf_evsel__hists_browse(pos, nr_events, help, - ev_name, true, hbt, + true, hbt, menu->min_pcnt, menu->env); ui_browser__show_title(&menu->b, title); @@ -1982,10 +2004,9 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help, single_entry: if (nr_entries == 1) { struct perf_evsel *first = perf_evlist__first(evlist); - const char *ev_name = perf_evsel__name(first); return perf_evsel__hists_browse(first, nr_entries, help, - ev_name, false, hbt, min_pcnt, + false, hbt, min_pcnt, env); } diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c index 6ca60e482cdc..fc654fb77ace 100644 --- a/tools/perf/ui/gtk/hists.c +++ b/tools/perf/ui/gtk/hists.c @@ -11,6 +11,7 @@ static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...) { int ret = 0; + int len; va_list args; double percent; const char *markup; @@ -18,6 +19,7 @@ static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...) size_t size = hpp->size; va_start(args, fmt); + len = va_arg(args, int); percent = va_arg(args, double); va_end(args); @@ -25,7 +27,7 @@ static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...) if (markup) ret += scnprintf(buf, size, markup); - ret += scnprintf(buf + ret, size - ret, fmt, percent); + ret += scnprintf(buf + ret, size - ret, fmt, len, percent); if (markup) ret += scnprintf(buf + ret, size - ret, "</span>"); @@ -39,12 +41,12 @@ static u64 he_get_##_field(struct hist_entry *he) \ return he->stat._field; \ } \ \ -static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \ +static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, \ struct hist_entry *he) \ { \ - return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%", \ - __percent_color_snprintf, true); \ + return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%", \ + __percent_color_snprintf, true); \ } #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \ @@ -57,8 +59,8 @@ static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp, \ struct hist_entry *he) \ { \ - return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, " %6.2f%%", \ - __percent_color_snprintf, true); \ + return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", \ + __percent_color_snprintf, true); \ } __HPP_COLOR_PERCENT_FN(overhead, period) @@ -205,10 +207,8 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists, if (perf_hpp__is_sort_entry(fmt)) sym_col = col_idx; - fmt->header(fmt, &hpp, hists_to_evsel(hists)); - gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view), - -1, ltrim(s), + -1, fmt->name, renderer, "markup", col_idx++, NULL); } @@ -319,7 +319,7 @@ int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, gtk_container_add(GTK_CONTAINER(window), vbox); evlist__for_each(evlist, pos) { - struct hists *hists = &pos->hists; + struct hists *hists = evsel__hists(pos); const char *evname = perf_evsel__name(pos); GtkWidget *scrolled_window; GtkWidget *tab_label; diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c index 498adb23c02e..2af18376b077 100644 --- a/tools/perf/ui/hist.c +++ b/tools/perf/ui/hist.c @@ -15,9 +15,9 @@ __ret; \ }) -int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, - hpp_field_fn get_field, const char *fmt, - hpp_snprint_fn print_fn, bool fmt_percent) +static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, + hpp_field_fn get_field, const char *fmt, int len, + hpp_snprint_fn print_fn, bool fmt_percent) { int ret; struct hists *hists = he->hists; @@ -32,9 +32,9 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, if (total) percent = 100.0 * get_field(he) / total; - ret = hpp__call_print_fn(hpp, print_fn, fmt, percent); + ret = hpp__call_print_fn(hpp, print_fn, fmt, len, percent); } else - ret = hpp__call_print_fn(hpp, print_fn, fmt, get_field(he)); + ret = hpp__call_print_fn(hpp, print_fn, fmt, len, get_field(he)); if (perf_evsel__is_group_event(evsel)) { int prev_idx, idx_delta; @@ -60,19 +60,19 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, */ if (fmt_percent) { ret += hpp__call_print_fn(hpp, print_fn, - fmt, 0.0); + fmt, len, 0.0); } else { ret += hpp__call_print_fn(hpp, print_fn, - fmt, 0ULL); + fmt, len, 0ULL); } } if (fmt_percent) { - ret += hpp__call_print_fn(hpp, print_fn, fmt, + ret += hpp__call_print_fn(hpp, print_fn, fmt, len, 100.0 * period / total); } else { ret += hpp__call_print_fn(hpp, print_fn, fmt, - period); + len, period); } prev_idx = perf_evsel__group_idx(evsel); @@ -86,10 +86,10 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, */ if (fmt_percent) { ret += hpp__call_print_fn(hpp, print_fn, - fmt, 0.0); + fmt, len, 0.0); } else { ret += hpp__call_print_fn(hpp, print_fn, - fmt, 0ULL); + fmt, len, 0ULL); } } } @@ -104,16 +104,35 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, return ret; } -int __hpp__fmt_acc(struct perf_hpp *hpp, struct hist_entry *he, - hpp_field_fn get_field, const char *fmt, - hpp_snprint_fn print_fn, bool fmt_percent) +int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, + struct hist_entry *he, hpp_field_fn get_field, + const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent) +{ + int len = fmt->user_len ?: fmt->len; + + if (symbol_conf.field_sep) { + return __hpp__fmt(hpp, he, get_field, fmtstr, 1, + print_fn, fmt_percent); + } + + if (fmt_percent) + len -= 2; /* 2 for a space and a % sign */ + else + len -= 1; + + return __hpp__fmt(hpp, he, get_field, fmtstr, len, print_fn, fmt_percent); +} + +int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, + struct hist_entry *he, hpp_field_fn get_field, + const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent) { if (!symbol_conf.cumulate_callchain) { - return snprintf(hpp->buf, hpp->size, "%*s", - fmt_percent ? 8 : 12, "N/A"); + int len = fmt->user_len ?: fmt->len; + return snprintf(hpp->buf, hpp->size, " %*s", len - 1, "N/A"); } - return __hpp__fmt(hpp, he, get_field, fmt, print_fn, fmt_percent); + return hpp__fmt(fmt, hpp, he, get_field, fmtstr, print_fn, fmt_percent); } static int field_cmp(u64 field_a, u64 field_b) @@ -190,30 +209,26 @@ static int __hpp__sort_acc(struct hist_entry *a, struct hist_entry *b, return ret; } -#define __HPP_HEADER_FN(_type, _str, _min_width, _unit_width) \ -static int hpp__header_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \ - struct perf_hpp *hpp, \ - struct perf_evsel *evsel) \ -{ \ - int len = _min_width; \ - \ - if (symbol_conf.event_group) \ - len = max(len, evsel->nr_members * _unit_width); \ - \ - return scnprintf(hpp->buf, hpp->size, "%*s", len, _str); \ -} - -#define __HPP_WIDTH_FN(_type, _min_width, _unit_width) \ -static int hpp__width_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \ - struct perf_hpp *hpp __maybe_unused, \ - struct perf_evsel *evsel) \ -{ \ - int len = _min_width; \ - \ - if (symbol_conf.event_group) \ - len = max(len, evsel->nr_members * _unit_width); \ - \ - return len; \ +static int hpp__width_fn(struct perf_hpp_fmt *fmt, + struct perf_hpp *hpp __maybe_unused, + struct perf_evsel *evsel) +{ + int len = fmt->user_len ?: fmt->len; + + if (symbol_conf.event_group) + len = max(len, evsel->nr_members * fmt->len); + + if (len < (int)strlen(fmt->name)) + len = strlen(fmt->name); + + return len; +} + +static int hpp__header_fn(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, + struct perf_evsel *evsel) +{ + int len = hpp__width_fn(fmt, hpp, evsel); + return scnprintf(hpp->buf, hpp->size, "%*s", len, fmt->name); } static int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...) @@ -221,11 +236,12 @@ static int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...) va_list args; ssize_t ssize = hpp->size; double percent; - int ret; + int ret, len; va_start(args, fmt); + len = va_arg(args, int); percent = va_arg(args, double); - ret = value_color_snprintf(hpp->buf, hpp->size, fmt, percent); + ret = percent_color_len_snprintf(hpp->buf, hpp->size, fmt, len, percent); va_end(args); return (ret >= ssize) ? (ssize - 1) : ret; @@ -250,20 +266,19 @@ static u64 he_get_##_field(struct hist_entry *he) \ return he->stat._field; \ } \ \ -static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \ +static int hpp__color_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, struct hist_entry *he) \ { \ - return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%", \ - hpp_color_scnprintf, true); \ + return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%", \ + hpp_color_scnprintf, true); \ } #define __HPP_ENTRY_PERCENT_FN(_type, _field) \ -static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \ +static int hpp__entry_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, struct hist_entry *he) \ { \ - const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%"; \ - return __hpp__fmt(hpp, he, he_get_##_field, fmt, \ - hpp_entry_scnprintf, true); \ + return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%", \ + hpp_entry_scnprintf, true); \ } #define __HPP_SORT_FN(_type, _field) \ @@ -278,20 +293,19 @@ static u64 he_get_acc_##_field(struct hist_entry *he) \ return he->stat_acc->_field; \ } \ \ -static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \ +static int hpp__color_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, struct hist_entry *he) \ { \ - return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, " %6.2f%%", \ - hpp_color_scnprintf, true); \ + return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", \ + hpp_color_scnprintf, true); \ } #define __HPP_ENTRY_ACC_PERCENT_FN(_type, _field) \ -static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \ +static int hpp__entry_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, struct hist_entry *he) \ { \ - const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%"; \ - return __hpp__fmt_acc(hpp, he, he_get_acc_##_field, fmt, \ - hpp_entry_scnprintf, true); \ + return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", \ + hpp_entry_scnprintf, true); \ } #define __HPP_SORT_ACC_FN(_type, _field) \ @@ -306,12 +320,11 @@ static u64 he_get_raw_##_field(struct hist_entry *he) \ return he->stat._field; \ } \ \ -static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \ +static int hpp__entry_##_type(struct perf_hpp_fmt *fmt, \ struct perf_hpp *hpp, struct hist_entry *he) \ { \ - const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64; \ - return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, \ - hpp_entry_scnprintf, false); \ + return hpp__fmt(fmt, hpp, he, he_get_raw_##_field, " %*"PRIu64, \ + hpp_entry_scnprintf, false); \ } #define __HPP_SORT_RAW_FN(_type, _field) \ @@ -321,37 +334,29 @@ static int64_t hpp__sort_##_type(struct hist_entry *a, struct hist_entry *b) \ } -#define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width) \ -__HPP_HEADER_FN(_type, _str, _min_width, _unit_width) \ -__HPP_WIDTH_FN(_type, _min_width, _unit_width) \ +#define HPP_PERCENT_FNS(_type, _field) \ __HPP_COLOR_PERCENT_FN(_type, _field) \ __HPP_ENTRY_PERCENT_FN(_type, _field) \ __HPP_SORT_FN(_type, _field) -#define HPP_PERCENT_ACC_FNS(_type, _str, _field, _min_width, _unit_width)\ -__HPP_HEADER_FN(_type, _str, _min_width, _unit_width) \ -__HPP_WIDTH_FN(_type, _min_width, _unit_width) \ +#define HPP_PERCENT_ACC_FNS(_type, _field) \ __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \ __HPP_ENTRY_ACC_PERCENT_FN(_type, _field) \ __HPP_SORT_ACC_FN(_type, _field) -#define HPP_RAW_FNS(_type, _str, _field, _min_width, _unit_width) \ -__HPP_HEADER_FN(_type, _str, _min_width, _unit_width) \ -__HPP_WIDTH_FN(_type, _min_width, _unit_width) \ +#define HPP_RAW_FNS(_type, _field) \ __HPP_ENTRY_RAW_FN(_type, _field) \ __HPP_SORT_RAW_FN(_type, _field) -__HPP_HEADER_FN(overhead_self, "Self", 8, 8) - -HPP_PERCENT_FNS(overhead, "Overhead", period, 8, 8) -HPP_PERCENT_FNS(overhead_sys, "sys", period_sys, 8, 8) -HPP_PERCENT_FNS(overhead_us, "usr", period_us, 8, 8) -HPP_PERCENT_FNS(overhead_guest_sys, "guest sys", period_guest_sys, 9, 8) -HPP_PERCENT_FNS(overhead_guest_us, "guest usr", period_guest_us, 9, 8) -HPP_PERCENT_ACC_FNS(overhead_acc, "Children", period, 8, 8) +HPP_PERCENT_FNS(overhead, period) +HPP_PERCENT_FNS(overhead_sys, period_sys) +HPP_PERCENT_FNS(overhead_us, period_us) +HPP_PERCENT_FNS(overhead_guest_sys, period_guest_sys) +HPP_PERCENT_FNS(overhead_guest_us, period_guest_us) +HPP_PERCENT_ACC_FNS(overhead_acc, period) -HPP_RAW_FNS(samples, "Samples", nr_events, 12, 12) -HPP_RAW_FNS(period, "Period", period, 12, 12) +HPP_RAW_FNS(samples, nr_events) +HPP_RAW_FNS(period, period) static int64_t hpp__nop_cmp(struct hist_entry *a __maybe_unused, struct hist_entry *b __maybe_unused) @@ -359,47 +364,50 @@ static int64_t hpp__nop_cmp(struct hist_entry *a __maybe_unused, return 0; } -#define HPP__COLOR_PRINT_FNS(_name) \ +#define HPP__COLOR_PRINT_FNS(_name, _fn) \ { \ - .header = hpp__header_ ## _name, \ - .width = hpp__width_ ## _name, \ - .color = hpp__color_ ## _name, \ - .entry = hpp__entry_ ## _name, \ + .name = _name, \ + .header = hpp__header_fn, \ + .width = hpp__width_fn, \ + .color = hpp__color_ ## _fn, \ + .entry = hpp__entry_ ## _fn, \ .cmp = hpp__nop_cmp, \ .collapse = hpp__nop_cmp, \ - .sort = hpp__sort_ ## _name, \ + .sort = hpp__sort_ ## _fn, \ } -#define HPP__COLOR_ACC_PRINT_FNS(_name) \ +#define HPP__COLOR_ACC_PRINT_FNS(_name, _fn) \ { \ - .header = hpp__header_ ## _name, \ - .width = hpp__width_ ## _name, \ - .color = hpp__color_ ## _name, \ - .entry = hpp__entry_ ## _name, \ + .name = _name, \ + .header = hpp__header_fn, \ + .width = hpp__width_fn, \ + .color = hpp__color_ ## _fn, \ + .entry = hpp__entry_ ## _fn, \ .cmp = hpp__nop_cmp, \ .collapse = hpp__nop_cmp, \ - .sort = hpp__sort_ ## _name, \ + .sort = hpp__sort_ ## _fn, \ } -#define HPP__PRINT_FNS(_name) \ +#define HPP__PRINT_FNS(_name, _fn) \ { \ - .header = hpp__header_ ## _name, \ - .width = hpp__width_ ## _name, \ - .entry = hpp__entry_ ## _name, \ + .name = _name, \ + .header = hpp__header_fn, \ + .width = hpp__width_fn, \ + .entry = hpp__entry_ ## _fn, \ .cmp = hpp__nop_cmp, \ .collapse = hpp__nop_cmp, \ - .sort = hpp__sort_ ## _name, \ + .sort = hpp__sort_ ## _fn, \ } struct perf_hpp_fmt perf_hpp__format[] = { - HPP__COLOR_PRINT_FNS(overhead), - HPP__COLOR_PRINT_FNS(overhead_sys), - HPP__COLOR_PRINT_FNS(overhead_us), - HPP__COLOR_PRINT_FNS(overhead_guest_sys), - HPP__COLOR_PRINT_FNS(overhead_guest_us), - HPP__COLOR_ACC_PRINT_FNS(overhead_acc), - HPP__PRINT_FNS(samples), - HPP__PRINT_FNS(period) + HPP__COLOR_PRINT_FNS("Overhead", overhead), + HPP__COLOR_PRINT_FNS("sys", overhead_sys), + HPP__COLOR_PRINT_FNS("usr", overhead_us), + HPP__COLOR_PRINT_FNS("guest sys", overhead_guest_sys), + HPP__COLOR_PRINT_FNS("guest usr", overhead_guest_us), + HPP__COLOR_ACC_PRINT_FNS("Children", overhead_acc), + HPP__PRINT_FNS("Samples", samples), + HPP__PRINT_FNS("Period", period) }; LIST_HEAD(perf_hpp__list); @@ -444,14 +452,12 @@ void perf_hpp__init(void) /* * If user specified field order, no need to setup default fields. */ - if (field_order) + if (is_strict_order(field_order)) return; if (symbol_conf.cumulate_callchain) { perf_hpp__column_enable(PERF_HPP__OVERHEAD_ACC); - - perf_hpp__format[PERF_HPP__OVERHEAD].header = - hpp__header_overhead_self; + perf_hpp__format[PERF_HPP__OVERHEAD].name = "Self"; } perf_hpp__column_enable(PERF_HPP__OVERHEAD); @@ -513,11 +519,11 @@ void perf_hpp__column_disable(unsigned col) void perf_hpp__cancel_cumulate(void) { - if (field_order) + if (is_strict_order(field_order)) return; perf_hpp__column_disable(PERF_HPP__OVERHEAD_ACC); - perf_hpp__format[PERF_HPP__OVERHEAD].header = hpp__header_overhead; + perf_hpp__format[PERF_HPP__OVERHEAD].name = "Overhead"; } void perf_hpp__setup_output_field(void) @@ -622,3 +628,59 @@ unsigned int hists__sort_list_width(struct hists *hists) return ret; } + +void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists) +{ + int idx; + + if (perf_hpp__is_sort_entry(fmt)) + return perf_hpp__reset_sort_width(fmt, hists); + + for (idx = 0; idx < PERF_HPP__MAX_INDEX; idx++) { + if (fmt == &perf_hpp__format[idx]) + break; + } + + if (idx == PERF_HPP__MAX_INDEX) + return; + + switch (idx) { + case PERF_HPP__OVERHEAD: + case PERF_HPP__OVERHEAD_SYS: + case PERF_HPP__OVERHEAD_US: + case PERF_HPP__OVERHEAD_ACC: + fmt->len = 8; + break; + + case PERF_HPP__OVERHEAD_GUEST_SYS: + case PERF_HPP__OVERHEAD_GUEST_US: + fmt->len = 9; + break; + + case PERF_HPP__SAMPLES: + case PERF_HPP__PERIOD: + fmt->len = 12; + break; + + default: + break; + } +} + +void perf_hpp__set_user_width(const char *width_list_str) +{ + struct perf_hpp_fmt *fmt; + const char *ptr = width_list_str; + + perf_hpp__for_each_format(fmt) { + char *p; + + int len = strtol(ptr, &p, 10); + fmt->user_len = len; + + if (*p == ',') + ptr = p + 1; + else + break; + } +} diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c index 90122abd3721..15b451acbde6 100644 --- a/tools/perf/ui/stdio/hist.c +++ b/tools/perf/ui/stdio/hist.c @@ -395,10 +395,12 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, init_rem_hits(); - perf_hpp__for_each_format(fmt) perf_hpp__reset_width(fmt, hists); + if (symbol_conf.col_width_list_str) + perf_hpp__set_user_width(symbol_conf.col_width_list_str); + if (!show_header) goto print_entries; @@ -479,7 +481,7 @@ print_entries: if (h->ms.map == NULL && verbose > 1) { __map_groups__fprintf_maps(h->thread->mg, - MAP__FUNCTION, verbose, fp); + MAP__FUNCTION, fp); fprintf(fp, "%.10s end\n", graph_dotted_line); } } diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 809b4c50beae..7dabde14ea54 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -232,9 +232,16 @@ static int mov__parse(struct ins_operands *ops) return -1; target = ++s; + comment = strchr(s, '#'); - while (s[0] != '\0' && !isspace(s[0])) - ++s; + if (comment != NULL) + s = comment - 1; + else + s = strchr(s, '\0') - 1; + + while (s > target && isspace(s[0])) + --s; + s++; prev = *s; *s = '\0'; @@ -244,7 +251,6 @@ static int mov__parse(struct ins_operands *ops) if (ops->target.raw == NULL) goto out_free_source; - comment = strchr(s, '#'); if (comment == NULL) return 0; @@ -472,7 +478,7 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map, pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr)); - if (addr < sym->start || addr > sym->end) + if (addr < sym->start || addr >= sym->end) return -ERANGE; offset = addr - sym->start; @@ -830,7 +836,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map, end = map__rip_2objdump(map, sym->end); offset = line_ip - start; - if ((u64)line_ip < start || (u64)line_ip > end) + if ((u64)line_ip < start || (u64)line_ip >= end) offset = -1; else parsed_line = tmp2 + 1; @@ -899,10 +905,8 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize) struct kcore_extract kce; bool delete_extract = false; - if (filename) { - snprintf(symfs_filename, sizeof(symfs_filename), "%s%s", - symbol_conf.symfs, filename); - } + if (filename) + symbol__join_symfs(symfs_filename, filename); if (filename == NULL) { if (dso->has_build_id) { @@ -922,8 +926,7 @@ fallback: * DSO is the same as when 'perf record' ran. */ filename = (char *)dso->long_name; - snprintf(symfs_filename, sizeof(symfs_filename), "%s%s", - symbol_conf.symfs, filename); + symbol__join_symfs(symfs_filename, filename); free_filename = false; } @@ -963,7 +966,7 @@ fallback: kce.kcore_filename = symfs_filename; kce.addr = map__rip_2objdump(map, sym->start); kce.offs = sym->start; - kce.len = sym->end + 1 - sym->start; + kce.len = sym->end - sym->start; if (!kcore_extract__create(&kce)) { delete_extract = true; strlcpy(symfs_filename, kce.extract_filename, @@ -984,7 +987,7 @@ fallback: disassembler_style ? "-M " : "", disassembler_style ? disassembler_style : "", map__rip_2objdump(map, sym->start), - map__rip_2objdump(map, sym->end+1), + map__rip_2objdump(map, sym->end), symbol_conf.annotate_asm_raw ? "" : "--no-show-raw", symbol_conf.annotate_src ? "-S" : "", symfs_filename, filename); diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h index 7b176dd02e1a..5cf9e1b5989d 100644 --- a/tools/perf/util/cache.h +++ b/tools/perf/util/cache.h @@ -22,6 +22,7 @@ typedef int (*config_fn_t)(const char *, const char *, void *); extern int perf_default_config(const char *, const char *, void *); extern int perf_config(config_fn_t fn, void *); extern int perf_config_int(const char *, const char *); +extern u64 perf_config_u64(const char *, const char *); extern int perf_config_bool(const char *, const char *); extern int config_error_nonbool(const char *); extern const char *perf_config_dirname(const char *, const char *); diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 48b6d3f50012..c84d3f8dcb75 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -25,77 +25,172 @@ __thread struct callchain_cursor callchain_cursor; -int -parse_callchain_report_opt(const char *arg) +#ifdef HAVE_DWARF_UNWIND_SUPPORT +static int get_stack_size(const char *str, unsigned long *_size) { - char *tok, *tok2; char *endptr; + unsigned long size; + unsigned long max_size = round_down(USHRT_MAX, sizeof(u64)); - symbol_conf.use_callchain = true; + size = strtoul(str, &endptr, 0); - if (!arg) + do { + if (*endptr) + break; + + size = round_up(size, sizeof(u64)); + if (!size || size > max_size) + break; + + *_size = size; return 0; - tok = strtok((char *)arg, ","); - if (!tok) - return -1; + } while (0); - /* get the output mode */ - if (!strncmp(tok, "graph", strlen(arg))) { - callchain_param.mode = CHAIN_GRAPH_ABS; + pr_err("callchain: Incorrect stack dump size (max %ld): %s\n", + max_size, str); + return -1; +} +#endif /* HAVE_DWARF_UNWIND_SUPPORT */ - } else if (!strncmp(tok, "flat", strlen(arg))) { - callchain_param.mode = CHAIN_FLAT; - } else if (!strncmp(tok, "fractal", strlen(arg))) { - callchain_param.mode = CHAIN_GRAPH_REL; - } else if (!strncmp(tok, "none", strlen(arg))) { - callchain_param.mode = CHAIN_NONE; - symbol_conf.use_callchain = false; - return 0; - } else { - return -1; - } +int parse_callchain_record_opt(const char *arg) +{ + char *tok, *name, *saveptr = NULL; + char *buf; + int ret = -1; + + /* We need buffer that we know we can write to. */ + buf = malloc(strlen(arg) + 1); + if (!buf) + return -ENOMEM; + + strcpy(buf, arg); + + tok = strtok_r((char *)buf, ",", &saveptr); + name = tok ? : (char *)buf; + + do { + /* Framepointer style */ + if (!strncmp(name, "fp", sizeof("fp"))) { + if (!strtok_r(NULL, ",", &saveptr)) { + callchain_param.record_mode = CALLCHAIN_FP; + ret = 0; + } else + pr_err("callchain: No more arguments " + "needed for -g fp\n"); + break; - /* get the min percentage */ - tok = strtok(NULL, ","); - if (!tok) - goto setup; +#ifdef HAVE_DWARF_UNWIND_SUPPORT + /* Dwarf style */ + } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) { + const unsigned long default_stack_dump_size = 8192; - callchain_param.min_percent = strtod(tok, &endptr); - if (tok == endptr) - return -1; + ret = 0; + callchain_param.record_mode = CALLCHAIN_DWARF; + callchain_param.dump_size = default_stack_dump_size; - /* get the print limit */ - tok2 = strtok(NULL, ","); - if (!tok2) - goto setup; + tok = strtok_r(NULL, ",", &saveptr); + if (tok) { + unsigned long size = 0; - if (tok2[0] != 'c') { - callchain_param.print_limit = strtoul(tok2, &endptr, 0); - tok2 = strtok(NULL, ","); - if (!tok2) - goto setup; + ret = get_stack_size(tok, &size); + callchain_param.dump_size = size; + } +#endif /* HAVE_DWARF_UNWIND_SUPPORT */ + } else { + pr_err("callchain: Unknown --call-graph option " + "value: %s\n", arg); + break; + } + + } while (0); + + free(buf); + return ret; +} + +static int parse_callchain_mode(const char *value) +{ + if (!strncmp(value, "graph", strlen(value))) { + callchain_param.mode = CHAIN_GRAPH_ABS; + return 0; + } + if (!strncmp(value, "flat", strlen(value))) { + callchain_param.mode = CHAIN_FLAT; + return 0; } + if (!strncmp(value, "fractal", strlen(value))) { + callchain_param.mode = CHAIN_GRAPH_REL; + return 0; + } + return -1; +} - /* get the call chain order */ - if (!strncmp(tok2, "caller", strlen("caller"))) +static int parse_callchain_order(const char *value) +{ + if (!strncmp(value, "caller", strlen(value))) { callchain_param.order = ORDER_CALLER; - else if (!strncmp(tok2, "callee", strlen("callee"))) + return 0; + } + if (!strncmp(value, "callee", strlen(value))) { callchain_param.order = ORDER_CALLEE; - else - return -1; + return 0; + } + return -1; +} - /* Get the sort key */ - tok2 = strtok(NULL, ","); - if (!tok2) - goto setup; - if (!strncmp(tok2, "function", strlen("function"))) +static int parse_callchain_sort_key(const char *value) +{ + if (!strncmp(value, "function", strlen(value))) { callchain_param.key = CCKEY_FUNCTION; - else if (!strncmp(tok2, "address", strlen("address"))) + return 0; + } + if (!strncmp(value, "address", strlen(value))) { callchain_param.key = CCKEY_ADDRESS; - else - return -1; -setup: + return 0; + } + return -1; +} + +int +parse_callchain_report_opt(const char *arg) +{ + char *tok; + char *endptr; + bool minpcnt_set = false; + + symbol_conf.use_callchain = true; + + if (!arg) + return 0; + + while ((tok = strtok((char *)arg, ",")) != NULL) { + if (!strncmp(tok, "none", strlen(tok))) { + callchain_param.mode = CHAIN_NONE; + symbol_conf.use_callchain = false; + return 0; + } + + if (!parse_callchain_mode(tok) || + !parse_callchain_order(tok) || + !parse_callchain_sort_key(tok)) { + /* parsing ok - move on to the next */ + } else if (!minpcnt_set) { + /* try to get the min percent */ + callchain_param.min_percent = strtod(tok, &endptr); + if (tok == endptr) + return -1; + minpcnt_set = true; + } else { + /* try print limit at last */ + callchain_param.print_limit = strtoul(tok, &endptr, 0); + if (tok == endptr) + return -1; + } + + arg = NULL; + } + if (callchain_register_param(&callchain_param) < 0) { pr_err("Can't register callchain params\n"); return -1; @@ -103,6 +198,47 @@ setup: return 0; } +int perf_callchain_config(const char *var, const char *value) +{ + char *endptr; + + if (prefixcmp(var, "call-graph.")) + return 0; + var += sizeof("call-graph.") - 1; + + if (!strcmp(var, "record-mode")) + return parse_callchain_record_opt(value); +#ifdef HAVE_DWARF_UNWIND_SUPPORT + if (!strcmp(var, "dump-size")) { + unsigned long size = 0; + int ret; + + ret = get_stack_size(value, &size); + callchain_param.dump_size = size; + + return ret; + } +#endif + if (!strcmp(var, "print-type")) + return parse_callchain_mode(value); + if (!strcmp(var, "order")) + return parse_callchain_order(value); + if (!strcmp(var, "sort-key")) + return parse_callchain_sort_key(value); + if (!strcmp(var, "threshold")) { + callchain_param.min_percent = strtod(value, &endptr); + if (value == endptr) + return -1; + } + if (!strcmp(var, "print-limit")) { + callchain_param.print_limit = strtod(value, &endptr); + if (value == endptr) + return -1; + } + + return 0; +} + static void rb_insert_callchain(struct rb_root *root, struct callchain_node *chain, enum chain_mode mode) @@ -626,7 +762,7 @@ int sample__resolve_callchain(struct perf_sample *sample, struct symbol **parent int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *sample) { - if (!symbol_conf.use_callchain) + if (!symbol_conf.use_callchain || sample->callchain == NULL) return 0; return callchain_append(he->callchain, &callchain_cursor, sample->period); } diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index 8f84423a75da..94cfefddf4db 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -54,6 +54,9 @@ enum chain_key { }; struct callchain_param { + bool enabled; + enum perf_call_graph_mode record_mode; + u32 dump_size; enum chain_mode mode; u32 print_limit; double min_percent; @@ -62,6 +65,8 @@ struct callchain_param { enum chain_key key; }; +extern struct callchain_param callchain_param; + struct callchain_list { u64 ip; struct map_symbol ms; @@ -154,7 +159,6 @@ static inline void callchain_cursor_advance(struct callchain_cursor *cursor) struct option; struct hist_entry; -int record_parse_callchain(const char *arg, struct record_opts *opts); int record_parse_callchain_opt(const struct option *opt, const char *arg, int unset); int record_callchain_opt(const struct option *opt, const char *arg, int unset); @@ -166,7 +170,9 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node * bool hide_unresolved); extern const char record_callchain_help[]; +int parse_callchain_record_opt(const char *arg); int parse_callchain_report_opt(const char *arg); +int perf_callchain_config(const char *var, const char *value); static inline void callchain_cursor_snapshot(struct callchain_cursor *dest, struct callchain_cursor *src) @@ -176,4 +182,17 @@ static inline void callchain_cursor_snapshot(struct callchain_cursor *dest, dest->first = src->curr; dest->nr -= src->pos; } + +#ifdef HAVE_SKIP_CALLCHAIN_IDX +extern int arch_skip_callchain_idx(struct machine *machine, + struct thread *thread, struct ip_callchain *chain); +#else +static inline int arch_skip_callchain_idx(struct machine *machine __maybe_unused, + struct thread *thread __maybe_unused, + struct ip_callchain *chain __maybe_unused) +{ + return -1; +} +#endif + #endif /* __PERF_CALLCHAIN_H */ diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c new file mode 100644 index 000000000000..47b78b3f0325 --- /dev/null +++ b/tools/perf/util/cloexec.c @@ -0,0 +1,74 @@ +#include <sched.h> +#include "util.h" +#include "../perf.h" +#include "cloexec.h" +#include "asm/bug.h" +#include "debug.h" + +static unsigned long flag = PERF_FLAG_FD_CLOEXEC; + +static int perf_flag_probe(void) +{ + /* use 'safest' configuration as used in perf_evsel__fallback() */ + struct perf_event_attr attr = { + .type = PERF_TYPE_SOFTWARE, + .config = PERF_COUNT_SW_CPU_CLOCK, + .exclude_kernel = 1, + }; + int fd; + int err; + int cpu; + pid_t pid = -1; + char sbuf[STRERR_BUFSIZE]; + + cpu = sched_getcpu(); + if (cpu < 0) + cpu = 0; + + while (1) { + /* check cloexec flag */ + fd = sys_perf_event_open(&attr, pid, cpu, -1, + PERF_FLAG_FD_CLOEXEC); + if (fd < 0 && pid == -1 && errno == EACCES) { + pid = 0; + continue; + } + break; + } + err = errno; + + if (fd >= 0) { + close(fd); + return 1; + } + + WARN_ONCE(err != EINVAL && err != EBUSY, + "perf_event_open(..., PERF_FLAG_FD_CLOEXEC) failed with unexpected error %d (%s)\n", + err, strerror_r(err, sbuf, sizeof(sbuf))); + + /* not supported, confirm error related to PERF_FLAG_FD_CLOEXEC */ + fd = sys_perf_event_open(&attr, pid, cpu, -1, 0); + err = errno; + + if (WARN_ONCE(fd < 0 && err != EBUSY, + "perf_event_open(..., 0) failed unexpectedly with error %d (%s)\n", + err, strerror_r(err, sbuf, sizeof(sbuf)))) + return -1; + + close(fd); + + return 0; +} + +unsigned long perf_event_open_cloexec_flag(void) +{ + static bool probed; + + if (!probed) { + if (perf_flag_probe() <= 0) + flag = 0; + probed = true; + } + + return flag; +} diff --git a/tools/perf/util/cloexec.h b/tools/perf/util/cloexec.h new file mode 100644 index 000000000000..94a5a7d829d5 --- /dev/null +++ b/tools/perf/util/cloexec.h @@ -0,0 +1,6 @@ +#ifndef __PERF_CLOEXEC_H +#define __PERF_CLOEXEC_H + +unsigned long perf_event_open_cloexec_flag(void); + +#endif /* __PERF_CLOEXEC_H */ diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c index 87b8672eb413..f4654183d391 100644 --- a/tools/perf/util/color.c +++ b/tools/perf/util/color.c @@ -335,3 +335,19 @@ int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...) va_end(args); return value_color_snprintf(bf, size, fmt, percent); } + +int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...) +{ + va_list args; + int len; + double percent; + const char *color; + + va_start(args, fmt); + len = va_arg(args, int); + percent = va_arg(args, double); + va_end(args); + + color = get_percent_color(percent); + return color_snprintf(bf, size, color, fmt, len, percent); +} diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h index 7ff30a62a132..0a594b8a0c26 100644 --- a/tools/perf/util/color.h +++ b/tools/perf/util/color.h @@ -41,6 +41,7 @@ int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...); int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf); int value_color_snprintf(char *bf, size_t size, const char *fmt, double value); int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...); +int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...); int percent_color_fprintf(FILE *fp, const char *fmt, double percent); const char *get_percent_color(double percent); diff --git a/tools/perf/util/comm.c b/tools/perf/util/comm.c index f9e777629e21..b2bb59df65e1 100644 --- a/tools/perf/util/comm.c +++ b/tools/perf/util/comm.c @@ -74,7 +74,7 @@ static struct comm_str *comm_str__findnew(const char *str, struct rb_root *root) return new; } -struct comm *comm__new(const char *str, u64 timestamp) +struct comm *comm__new(const char *str, u64 timestamp, bool exec) { struct comm *comm = zalloc(sizeof(*comm)); @@ -82,6 +82,7 @@ struct comm *comm__new(const char *str, u64 timestamp) return NULL; comm->start = timestamp; + comm->exec = exec; comm->comm_str = comm_str__findnew(str, &comm_str_root); if (!comm->comm_str) { @@ -94,7 +95,7 @@ struct comm *comm__new(const char *str, u64 timestamp) return comm; } -int comm__override(struct comm *comm, const char *str, u64 timestamp) +int comm__override(struct comm *comm, const char *str, u64 timestamp, bool exec) { struct comm_str *new, *old = comm->comm_str; @@ -106,6 +107,8 @@ int comm__override(struct comm *comm, const char *str, u64 timestamp) comm_str__put(old); comm->comm_str = new; comm->start = timestamp; + if (exec) + comm->exec = true; return 0; } diff --git a/tools/perf/util/comm.h b/tools/perf/util/comm.h index fac5bd51befc..51c10ab257f8 100644 --- a/tools/perf/util/comm.h +++ b/tools/perf/util/comm.h @@ -11,11 +11,13 @@ struct comm { struct comm_str *comm_str; u64 start; struct list_head list; + bool exec; }; void comm__free(struct comm *comm); -struct comm *comm__new(const char *str, u64 timestamp); +struct comm *comm__new(const char *str, u64 timestamp, bool exec); const char *comm__str(const struct comm *comm); -int comm__override(struct comm *comm, const char *str, u64 timestamp); +int comm__override(struct comm *comm, const char *str, u64 timestamp, + bool exec); #endif /* __PERF_COMM_H */ diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c index 24519e14ac56..57ff826f150b 100644 --- a/tools/perf/util/config.c +++ b/tools/perf/util/config.c @@ -222,7 +222,8 @@ static int perf_parse_file(config_fn_t fn, void *data) const unsigned char *bomptr = utf8_bom; for (;;) { - int c = get_next_char(); + int line, c = get_next_char(); + if (bomptr && *bomptr) { /* We are at the file beginning; skip UTF8-encoded BOM * if present. Sane editors won't put this in on their @@ -261,8 +262,16 @@ static int perf_parse_file(config_fn_t fn, void *data) if (!isalpha(c)) break; var[baselen] = tolower(c); - if (get_value(fn, data, var, baselen+1) < 0) + + /* + * The get_value function might or might not reach the '\n', + * so saving the current line number for error reporting. + */ + line = config_linenr; + if (get_value(fn, data, var, baselen+1) < 0) { + config_linenr = line; break; + } } die("bad config file line %d in %s", config_linenr, config_file_name); } @@ -286,6 +295,21 @@ static int parse_unit_factor(const char *end, unsigned long *val) return 0; } +static int perf_parse_llong(const char *value, long long *ret) +{ + if (value && *value) { + char *end; + long long val = strtoll(value, &end, 0); + unsigned long factor = 1; + + if (!parse_unit_factor(end, &factor)) + return 0; + *ret = val * factor; + return 1; + } + return 0; +} + static int perf_parse_long(const char *value, long *ret) { if (value && *value) { @@ -307,6 +331,15 @@ static void die_bad_config(const char *name) die("bad config value for '%s'", name); } +u64 perf_config_u64(const char *name, const char *value) +{ + long long ret = 0; + + if (!perf_parse_llong(value, &ret)) + die_bad_config(name); + return (u64) ret; +} + int perf_config_int(const char *name, const char *value) { long ret = 0; @@ -350,6 +383,16 @@ static int perf_default_core_config(const char *var __maybe_unused, return 0; } +static int perf_ui_config(const char *var, const char *value) +{ + /* Add other config variables here. */ + if (!strcmp(var, "ui.show-headers")) { + symbol_conf.show_hist_headers = perf_config_bool(var, value); + return 0; + } + return 0; +} + int perf_default_config(const char *var, const char *value, void *dummy __maybe_unused) { @@ -359,6 +402,12 @@ int perf_default_config(const char *var, const char *value, if (!prefixcmp(var, "hist.")) return perf_hist_config(var, value); + if (!prefixcmp(var, "ui.")) + return perf_ui_config(var, value); + + if (!prefixcmp(var, "call-graph.")) + return perf_callchain_config(var, value); + /* Add other config variables here. */ return 0; } diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c index 55de44ecebef..1921942fc2e0 100644 --- a/tools/perf/util/data.c +++ b/tools/perf/util/data.c @@ -7,6 +7,7 @@ #include "data.h" #include "util.h" +#include "debug.h" static bool check_pipe(struct perf_data_file *file) { @@ -49,12 +50,14 @@ static int open_file_read(struct perf_data_file *file) { struct stat st; int fd; + char sbuf[STRERR_BUFSIZE]; fd = open(file->path, O_RDONLY); if (fd < 0) { int err = errno; - pr_err("failed to open %s: %s", file->path, strerror(err)); + pr_err("failed to open %s: %s", file->path, + strerror_r(err, sbuf, sizeof(sbuf))); if (err == ENOENT && !strcmp(file->path, "perf.data")) pr_err(" (try 'perf record' first)"); pr_err("\n"); @@ -65,7 +68,7 @@ static int open_file_read(struct perf_data_file *file) goto out_close; if (!file->force && st.st_uid && (st.st_uid != geteuid())) { - pr_err("file %s not owned by current user or root\n", + pr_err("File %s not owned by current user or root (use -f to override)\n", file->path); goto out_close; } @@ -87,6 +90,7 @@ static int open_file_read(struct perf_data_file *file) static int open_file_write(struct perf_data_file *file) { int fd; + char sbuf[STRERR_BUFSIZE]; if (check_backup(file)) return -1; @@ -94,7 +98,8 @@ static int open_file_write(struct perf_data_file *file) fd = open(file->path, O_CREAT|O_RDWR|O_TRUNC, S_IRUSR|S_IWUSR); if (fd < 0) - pr_err("failed to open %s : %s\n", file->path, strerror(errno)); + pr_err("failed to open %s : %s\n", file->path, + strerror_r(errno, sbuf, sizeof(sbuf))); return fd; } diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c index 299b55586502..ba357f3226c6 100644 --- a/tools/perf/util/debug.c +++ b/tools/perf/util/debug.c @@ -13,14 +13,18 @@ #include "util.h" #include "target.h" +#define NSECS_PER_SEC 1000000000ULL +#define NSECS_PER_USEC 1000ULL + int verbose; bool dump_trace = false, quiet = false; +int debug_ordered_events; -static int _eprintf(int level, const char *fmt, va_list args) +static int _eprintf(int level, int var, const char *fmt, va_list args) { int ret = 0; - if (verbose >= level) { + if (var >= level) { if (use_browser >= 1) ui_helpline__vshow(fmt, args); else @@ -30,18 +34,47 @@ static int _eprintf(int level, const char *fmt, va_list args) return ret; } -int eprintf(int level, const char *fmt, ...) +int eprintf(int level, int var, const char *fmt, ...) { va_list args; int ret; va_start(args, fmt); - ret = _eprintf(level, fmt, args); + ret = _eprintf(level, var, fmt, args); va_end(args); return ret; } +static int __eprintf_time(u64 t, const char *fmt, va_list args) +{ + int ret = 0; + u64 secs, usecs, nsecs = t; + + secs = nsecs / NSECS_PER_SEC; + nsecs -= secs * NSECS_PER_SEC; + usecs = nsecs / NSECS_PER_USEC; + + ret = fprintf(stderr, "[%13" PRIu64 ".%06" PRIu64 "] ", + secs, usecs); + ret += vfprintf(stderr, fmt, args); + return ret; +} + +int eprintf_time(int level, int var, u64 t, const char *fmt, ...) +{ + int ret = 0; + va_list args; + + if (var >= level) { + va_start(args, fmt); + ret = __eprintf_time(t, fmt, args); + va_end(args); + } + + return ret; +} + /* * Overloading libtraceevent standard info print * function, display with -v in perf. @@ -51,9 +84,9 @@ void pr_stat(const char *fmt, ...) va_list args; va_start(args, fmt); - _eprintf(1, fmt, args); + _eprintf(1, verbose, fmt, args); va_end(args); - eprintf(1, "\n"); + eprintf(1, verbose, "\n"); } int dump_printf(const char *fmt, ...) @@ -105,3 +138,48 @@ void trace_event(union perf_event *event) } printf(".\n"); } + +static struct debug_variable { + const char *name; + int *ptr; +} debug_variables[] = { + { .name = "verbose", .ptr = &verbose }, + { .name = "ordered-events", .ptr = &debug_ordered_events}, + { .name = NULL, } +}; + +int perf_debug_option(const char *str) +{ + struct debug_variable *var = &debug_variables[0]; + char *vstr, *s = strdup(str); + int v = 1; + + vstr = strchr(s, '='); + if (vstr) + *vstr++ = 0; + + while (var->name) { + if (!strcmp(s, var->name)) + break; + var++; + } + + if (!var->name) { + pr_err("Unknown debug variable name '%s'\n", s); + free(s); + return -1; + } + + if (vstr) { + v = atoi(vstr); + /* + * Allow only values in range (0, 10), + * otherwise set 0. + */ + v = (v < 0) || (v > 10) ? 0 : v; + } + + *var->ptr = v; + free(s); + return 0; +} diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h index 443694c36b03..be264d6f3b30 100644 --- a/tools/perf/util/debug.h +++ b/tools/perf/util/debug.h @@ -3,6 +3,7 @@ #define __PERF_DEBUG_H #include <stdbool.h> +#include <string.h> #include "event.h" #include "../ui/helpline.h" #include "../ui/progress.h" @@ -10,6 +11,33 @@ extern int verbose; extern bool quiet, dump_trace; +extern int debug_ordered_events; + +#ifndef pr_fmt +#define pr_fmt(fmt) fmt +#endif + +#define pr_err(fmt, ...) \ + eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_warning(fmt, ...) \ + eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_info(fmt, ...) \ + eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_debug(fmt, ...) \ + eprintf(1, verbose, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_debugN(n, fmt, ...) \ + eprintf(n, verbose, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__) + +#define pr_time_N(n, var, t, fmt, ...) \ + eprintf_time(n, var, t, fmt, ##__VA_ARGS__) + +#define pr_oe_time(t, fmt, ...) pr_time_N(1, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_oe_time2(t, fmt, ...) pr_time_N(2, debug_ordered_events, t, pr_fmt(fmt), ##__VA_ARGS__) + +#define STRERR_BUFSIZE 128 /* For the buffer size of strerror_r */ int dump_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2))); void trace_event(union perf_event *event); @@ -19,4 +47,9 @@ int ui__warning(const char *format, ...) __attribute__((format(printf, 1, 2))); void pr_stat(const char *fmt, ...); +int eprintf(int level, int var, const char *fmt, ...) __attribute__((format(printf, 3, 4))); +int eprintf_time(int level, int var, u64 t, const char *fmt, ...) __attribute__((format(printf, 4, 5))); + +int perf_debug_option(const char *str); + #endif /* __PERF_DEBUG_H */ diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index 819f10414f08..0247acfdfaca 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -37,6 +37,7 @@ int dso__read_binary_type_filename(const struct dso *dso, { char build_id_hex[BUILD_ID_SIZE * 2 + 1]; int ret = 0; + size_t len; switch (type) { case DSO_BINARY_TYPE__DEBUGLINK: { @@ -60,26 +61,25 @@ int dso__read_binary_type_filename(const struct dso *dso, break; case DSO_BINARY_TYPE__FEDORA_DEBUGINFO: - snprintf(filename, size, "%s/usr/lib/debug%s.debug", - symbol_conf.symfs, dso->long_name); + len = __symbol__join_symfs(filename, size, "/usr/lib/debug"); + snprintf(filename + len, size - len, "%s.debug", dso->long_name); break; case DSO_BINARY_TYPE__UBUNTU_DEBUGINFO: - snprintf(filename, size, "%s/usr/lib/debug%s", - symbol_conf.symfs, dso->long_name); + len = __symbol__join_symfs(filename, size, "/usr/lib/debug"); + snprintf(filename + len, size - len, "%s", dso->long_name); break; case DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO: { const char *last_slash; - size_t len; size_t dir_size; last_slash = dso->long_name + dso->long_name_len; while (last_slash != dso->long_name && *last_slash != '/') last_slash--; - len = scnprintf(filename, size, "%s", symbol_conf.symfs); + len = __symbol__join_symfs(filename, size, ""); dir_size = last_slash - dso->long_name + 2; if (dir_size > (size - len)) { ret = -1; @@ -100,26 +100,24 @@ int dso__read_binary_type_filename(const struct dso *dso, build_id__sprintf(dso->build_id, sizeof(dso->build_id), build_id_hex); - snprintf(filename, size, - "%s/usr/lib/debug/.build-id/%.2s/%s.debug", - symbol_conf.symfs, build_id_hex, build_id_hex + 2); + len = __symbol__join_symfs(filename, size, "/usr/lib/debug/.build-id/"); + snprintf(filename + len, size - len, "%.2s/%s.debug", + build_id_hex, build_id_hex + 2); break; case DSO_BINARY_TYPE__VMLINUX: case DSO_BINARY_TYPE__GUEST_VMLINUX: case DSO_BINARY_TYPE__SYSTEM_PATH_DSO: - snprintf(filename, size, "%s%s", - symbol_conf.symfs, dso->long_name); + __symbol__join_symfs(filename, size, dso->long_name); break; case DSO_BINARY_TYPE__GUEST_KMODULE: - snprintf(filename, size, "%s%s%s", symbol_conf.symfs, - root_dir, dso->long_name); + path__join3(filename, size, symbol_conf.symfs, + root_dir, dso->long_name); break; case DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE: - snprintf(filename, size, "%s%s", symbol_conf.symfs, - dso->long_name); + __symbol__join_symfs(filename, size, dso->long_name); break; case DSO_BINARY_TYPE__KCORE: @@ -164,13 +162,15 @@ static void close_first_dso(void); static int do_open(char *name) { int fd; + char sbuf[STRERR_BUFSIZE]; do { fd = open(name, O_RDONLY); if (fd >= 0) return fd; - pr_debug("dso open failed, mmap: %s\n", strerror(errno)); + pr_debug("dso open failed, mmap: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); if (!dso__data_open_cnt || errno != EMFILE) break; @@ -216,7 +216,7 @@ static int open_dso(struct dso *dso, struct machine *machine) { int fd = __open_dso(dso, machine); - if (fd > 0) { + if (fd >= 0) { dso__list_add(dso); /* * Check if we crossed the allowed number @@ -331,26 +331,44 @@ int dso__data_fd(struct dso *dso, struct machine *machine) }; int i = 0; + if (dso->data.status == DSO_DATA_STATUS_ERROR) + return -1; + if (dso->data.fd >= 0) - return dso->data.fd; + goto out; if (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND) { dso->data.fd = open_dso(dso, machine); - return dso->data.fd; + goto out; } do { - int fd; - dso->binary_type = binary_type_data[i++]; - fd = open_dso(dso, machine); - if (fd >= 0) - return dso->data.fd = fd; + dso->data.fd = open_dso(dso, machine); + if (dso->data.fd >= 0) + goto out; } while (dso->binary_type != DSO_BINARY_TYPE__NOT_FOUND); +out: + if (dso->data.fd >= 0) + dso->data.status = DSO_DATA_STATUS_OK; + else + dso->data.status = DSO_DATA_STATUS_ERROR; + + return dso->data.fd; +} + +bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by) +{ + u32 flag = 1 << by; + + if (dso->data.status_seen & flag) + return true; + + dso->data.status_seen |= flag; - return -EINVAL; + return false; } static void @@ -514,10 +532,12 @@ static ssize_t cached_read(struct dso *dso, u64 offset, u8 *data, ssize_t size) static int data_file_size(struct dso *dso) { struct stat st; + char sbuf[STRERR_BUFSIZE]; if (!dso->data.file_size) { if (fstat(dso->data.fd, &st)) { - pr_err("dso mmap failed, fstat: %s\n", strerror(errno)); + pr_err("dso mmap failed, fstat: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); return -1; } dso->data.file_size = st.st_size; @@ -526,6 +546,28 @@ static int data_file_size(struct dso *dso) return 0; } +/** + * dso__data_size - Return dso data size + * @dso: dso object + * @machine: machine object + * + * Return: dso data size + */ +off_t dso__data_size(struct dso *dso, struct machine *machine) +{ + int fd; + + fd = dso__data_fd(dso, machine); + if (fd < 0) + return fd; + + if (data_file_size(dso)) + return -1; + + /* For now just estimate dso data size is close to file size */ + return dso->data.file_size; +} + static ssize_t data_read_offset(struct dso *dso, u64 offset, u8 *data, ssize_t size) { @@ -611,6 +653,65 @@ struct dso *dso__kernel_findnew(struct machine *machine, const char *name, return dso; } +/* + * Find a matching entry and/or link current entry to RB tree. + * Either one of the dso or name parameter must be non-NULL or the + * function will not work. + */ +static struct dso *dso__findlink_by_longname(struct rb_root *root, + struct dso *dso, const char *name) +{ + struct rb_node **p = &root->rb_node; + struct rb_node *parent = NULL; + + if (!name) + name = dso->long_name; + /* + * Find node with the matching name + */ + while (*p) { + struct dso *this = rb_entry(*p, struct dso, rb_node); + int rc = strcmp(name, this->long_name); + + parent = *p; + if (rc == 0) { + /* + * In case the new DSO is a duplicate of an existing + * one, print an one-time warning & put the new entry + * at the end of the list of duplicates. + */ + if (!dso || (dso == this)) + return this; /* Find matching dso */ + /* + * The core kernel DSOs may have duplicated long name. + * In this case, the short name should be different. + * Comparing the short names to differentiate the DSOs. + */ + rc = strcmp(dso->short_name, this->short_name); + if (rc == 0) { + pr_err("Duplicated dso name: %s\n", name); + return NULL; + } + } + if (rc < 0) + p = &parent->rb_left; + else + p = &parent->rb_right; + } + if (dso) { + /* Add new node and rebalance tree */ + rb_link_node(&dso->rb_node, parent, p); + rb_insert_color(&dso->rb_node, root); + } + return NULL; +} + +static inline struct dso * +dso__find_by_longname(const struct rb_root *root, const char *name) +{ + return dso__findlink_by_longname((struct rb_root *)root, NULL, name); +} + void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated) { if (name == NULL) @@ -701,8 +802,10 @@ struct dso *dso__new(const char *name) dso->symbols[i] = dso->symbol_names[i] = RB_ROOT; dso->data.cache = RB_ROOT; dso->data.fd = -1; + dso->data.status = DSO_DATA_STATUS_UNKNOWN; dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND; dso->binary_type = DSO_BINARY_TYPE__NOT_FOUND; + dso->is_64_bit = (sizeof(void *) == 8); dso->loaded = 0; dso->rel = 0; dso->sorted_by_name = 0; @@ -711,6 +814,7 @@ struct dso *dso__new(const char *name) dso->a2l_fails = 1; dso->kernel = DSO_TYPE_USER; dso->needs_swap = DSO_SWAP__UNSET; + RB_CLEAR_NODE(&dso->rb_node); INIT_LIST_HEAD(&dso->node); INIT_LIST_HEAD(&dso->data.open_entry); } @@ -721,6 +825,10 @@ struct dso *dso__new(const char *name) void dso__delete(struct dso *dso) { int i; + + if (!RB_EMPTY_NODE(&dso->rb_node)) + pr_err("DSO %s is still in rbtree when being deleted!\n", + dso->long_name); for (i = 0; i < MAP__NR_TYPES; ++i) symbols__delete(&dso->symbols[i]); @@ -807,35 +915,34 @@ bool __dsos__read_build_ids(struct list_head *head, bool with_hits) return have_build_id; } -void dsos__add(struct list_head *head, struct dso *dso) +void dsos__add(struct dsos *dsos, struct dso *dso) { - list_add_tail(&dso->node, head); + list_add_tail(&dso->node, &dsos->head); + dso__findlink_by_longname(&dsos->root, dso, NULL); } -struct dso *dsos__find(const struct list_head *head, const char *name, bool cmp_short) +struct dso *dsos__find(const struct dsos *dsos, const char *name, + bool cmp_short) { struct dso *pos; if (cmp_short) { - list_for_each_entry(pos, head, node) + list_for_each_entry(pos, &dsos->head, node) if (strcmp(pos->short_name, name) == 0) return pos; return NULL; } - list_for_each_entry(pos, head, node) - if (strcmp(pos->long_name, name) == 0) - return pos; - return NULL; + return dso__find_by_longname(&dsos->root, name); } -struct dso *__dsos__findnew(struct list_head *head, const char *name) +struct dso *__dsos__findnew(struct dsos *dsos, const char *name) { - struct dso *dso = dsos__find(head, name, false); + struct dso *dso = dsos__find(dsos, name, false); if (!dso) { dso = dso__new(name); if (dso != NULL) { - dsos__add(head, dso); + dsos__add(dsos, dso); dso__set_basename(dso); } } @@ -898,3 +1005,14 @@ size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp) return ret; } + +enum dso_type dso__type(struct dso *dso, struct machine *machine) +{ + int fd; + + fd = dso__data_fd(dso, machine); + if (fd < 0) + return DSO__TYPE_UNKNOWN; + + return dso__type_fd(fd); +} diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h index ad553ba257bf..acb651acc7fd 100644 --- a/tools/perf/util/dso.h +++ b/tools/perf/util/dso.h @@ -5,6 +5,7 @@ #include <linux/rbtree.h> #include <stdbool.h> #include <linux/types.h> +#include <linux/bitops.h> #include "map.h" #include "build-id.h" @@ -40,6 +41,23 @@ enum dso_swap_type { DSO_SWAP__YES, }; +enum dso_data_status { + DSO_DATA_STATUS_ERROR = -1, + DSO_DATA_STATUS_UNKNOWN = 0, + DSO_DATA_STATUS_OK = 1, +}; + +enum dso_data_status_seen { + DSO_DATA_STATUS_SEEN_ITRACE, +}; + +enum dso_type { + DSO__TYPE_UNKNOWN, + DSO__TYPE_64BIT, + DSO__TYPE_32BIT, + DSO__TYPE_X32BIT, +}; + #define DSO__SWAP(dso, type, val) \ ({ \ type ____r = val; \ @@ -72,8 +90,18 @@ struct dso_cache { char data[0]; }; +/* + * DSOs are put into both a list for fast iteration and rbtree for fast + * long name lookup. + */ +struct dsos { + struct list_head head; + struct rb_root root; /* rbtree root sorted by long name */ +}; + struct dso { struct list_head node; + struct rb_node rb_node; /* rbtree node sorted by long name */ struct rb_root symbols[MAP__NR_TYPES]; struct rb_root symbol_names[MAP__NR_TYPES]; void *a2l; @@ -90,6 +118,7 @@ struct dso { u8 annotate_warned:1; u8 short_name_allocated:1; u8 long_name_allocated:1; + u8 is_64_bit:1; u8 sorted_by_name; u8 loaded; u8 rel; @@ -103,6 +132,8 @@ struct dso { struct { struct rb_root cache; int fd; + int status; + u32 status_seen; size_t file_size; struct list_head open_entry; } data; @@ -153,6 +184,7 @@ int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type t * The dso__data_* external interface provides following functions: * dso__data_fd * dso__data_close + * dso__data_size * dso__data_read_offset * dso__data_read_addr * @@ -190,20 +222,22 @@ int dso__read_binary_type_filename(const struct dso *dso, enum dso_binary_type t int dso__data_fd(struct dso *dso, struct machine *machine); void dso__data_close(struct dso *dso); +off_t dso__data_size(struct dso *dso, struct machine *machine); ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine, u64 offset, u8 *data, ssize_t size); ssize_t dso__data_read_addr(struct dso *dso, struct map *map, struct machine *machine, u64 addr, u8 *data, ssize_t size); +bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by); struct map *dso__new_map(const char *name); struct dso *dso__kernel_findnew(struct machine *machine, const char *name, const char *short_name, int dso_type); -void dsos__add(struct list_head *head, struct dso *dso); -struct dso *dsos__find(const struct list_head *head, const char *name, +void dsos__add(struct dsos *dsos, struct dso *dso); +struct dso *dsos__find(const struct dsos *dsos, const char *name, bool cmp_short); -struct dso *__dsos__findnew(struct list_head *head, const char *name); +struct dso *__dsos__findnew(struct dsos *dsos, const char *name); bool __dsos__read_build_ids(struct list_head *head, bool with_hits); size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp, @@ -229,4 +263,6 @@ static inline bool dso__is_kcore(struct dso *dso) void dso__free_a2l(struct dso *dso); +enum dso_type dso__type(struct dso *dso, struct machine *machine); + #endif /* __PERF_DSO */ diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index d0281bdfa582..4af6b279e34a 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -558,13 +558,17 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, struct map *map; struct kmap *kmap; int err; + union perf_event *event; + + if (machine->vmlinux_maps[0] == NULL) + return -1; + /* * We should get this from /sys/kernel/sections/.text, but till that is * available use this, and after it is use this as a fallback for older * kernels. */ - union perf_event *event = zalloc((sizeof(event->mmap) + - machine->id_hdr_size)); + event = zalloc((sizeof(event->mmap) + machine->id_hdr_size)); if (event == NULL) { pr_debug("Not enough memory synthesizing mmap event " "for kernel modules\n"); @@ -603,7 +607,14 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp) { - return fprintf(fp, ": %s:%d\n", event->comm.comm, event->comm.tid); + const char *s; + + if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC) + s = " exec"; + else + s = ""; + + return fprintf(fp, "%s: %s:%d\n", s, event->comm.comm, event->comm.tid); } int perf_event__process_comm(struct perf_tool *tool __maybe_unused, @@ -777,10 +788,11 @@ try_again: * "[vdso]" dso, but for now lets use the old trick of looking * in the whole kernel symbol list. */ - if ((long long)al->addr < 0 && - cpumode == PERF_RECORD_MISC_USER && - machine && mg != &machine->kmaps) { + if (cpumode == PERF_RECORD_MISC_USER && machine && + mg != &machine->kmaps && + machine__kernel_ip(machine, al->addr)) { mg = &machine->kmaps; + load_map = true; goto try_again; } } else { @@ -866,3 +878,45 @@ int perf_event__preprocess_sample(const union perf_event *event, return 0; } + +bool is_bts_event(struct perf_event_attr *attr) +{ + return attr->type == PERF_TYPE_HARDWARE && + (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && + attr->sample_period == 1; +} + +bool sample_addr_correlates_sym(struct perf_event_attr *attr) +{ + if (attr->type == PERF_TYPE_SOFTWARE && + (attr->config == PERF_COUNT_SW_PAGE_FAULTS || + attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN || + attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)) + return true; + + if (is_bts_event(attr)) + return true; + + return false; +} + +void perf_event__preprocess_sample_addr(union perf_event *event, + struct perf_sample *sample, + struct machine *machine, + struct thread *thread, + struct addr_location *al) +{ + u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + + thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, + sample->addr, al); + if (!al->map) + thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE, + sample->addr, al); + + al->cpu = sample->cpu; + al->sym = NULL; + + if (al->map) + al->sym = map__find_symbol(al->map, al->addr, NULL); +} diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index e5dd40addb30..5699e7e2a790 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -156,6 +156,8 @@ struct perf_sample { u32 cpu; u32 raw_size; u64 data_src; + u32 flags; + u16 insn_len; void *raw_data; struct ip_callchain *callchain; struct branch_stack *branch_stack; @@ -188,6 +190,32 @@ enum perf_user_event_type { /* above any possible kernel type */ PERF_RECORD_HEADER_MAX }; +/* + * The kernel collects the number of events it couldn't send in a stretch and + * when possible sends this number in a PERF_RECORD_LOST event. The number of + * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while + * total_lost tells exactly how many events the kernel in fact lost, i.e. it is + * the sum of all struct lost_event.lost fields reported. + * + * The total_period is needed because by default auto-freq is used, so + * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get + * the total number of low level events, it is necessary to to sum all struct + * sample_event.period and stash the result in total_period. + */ +struct events_stats { + u64 total_period; + u64 total_non_filtered_period; + u64 total_lost; + u64 total_invalid_chains; + u32 nr_events[PERF_RECORD_HEADER_MAX]; + u32 nr_non_filtered_samples; + u32 nr_lost_warned; + u32 nr_unknown_events; + u32 nr_invalid_chains; + u32 nr_unknown_id; + u32 nr_unprocessable_samples; +}; + struct attr_event { struct perf_event_header header; struct perf_event_attr attr; @@ -288,6 +316,16 @@ int perf_event__preprocess_sample(const union perf_event *event, struct addr_location *al, struct perf_sample *sample); +struct thread; + +bool is_bts_event(struct perf_event_attr *attr); +bool sample_addr_correlates_sym(struct perf_event_attr *attr); +void perf_event__preprocess_sample_addr(union perf_event *event, + struct perf_sample *sample, + struct machine *machine, + struct thread *thread, + struct addr_location *al); + const char *perf_event__name(unsigned int id); size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type, diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 59ef2802fcf6..3c9e77d6b4c2 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -25,6 +25,9 @@ #include <linux/bitops.h> #include <linux/hash.h> +static void perf_evlist__mmap_put(struct perf_evlist *evlist, int idx); +static void __perf_evlist__munmap(struct perf_evlist *evlist, int idx); + #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) #define SID(e, x, y) xyarray__entry(e->sample_id, x, y) @@ -37,6 +40,7 @@ void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus, INIT_HLIST_HEAD(&evlist->heads[i]); INIT_LIST_HEAD(&evlist->entries); perf_evlist__set_maps(evlist, cpus, threads); + fdarray__init(&evlist->pollfd, 64); evlist->workload.pid = -1; } @@ -102,7 +106,7 @@ static void perf_evlist__purge(struct perf_evlist *evlist) void perf_evlist__exit(struct perf_evlist *evlist) { zfree(&evlist->mmap); - zfree(&evlist->pollfd); + fdarray__exit(&evlist->pollfd); } void perf_evlist__delete(struct perf_evlist *evlist) @@ -122,6 +126,7 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry) { list_add_tail(&entry->node, &evlist->entries); entry->idx = evlist->nr_entries; + entry->tracking = !entry->idx; if (!evlist->nr_entries++) perf_evlist__set_id_pos(evlist); @@ -265,17 +270,27 @@ int perf_evlist__add_newtp(struct perf_evlist *evlist, return 0; } +static int perf_evlist__nr_threads(struct perf_evlist *evlist, + struct perf_evsel *evsel) +{ + if (evsel->system_wide) + return 1; + else + return thread_map__nr(evlist->threads); +} + void perf_evlist__disable(struct perf_evlist *evlist) { int cpu, thread; struct perf_evsel *pos; int nr_cpus = cpu_map__nr(evlist->cpus); - int nr_threads = thread_map__nr(evlist->threads); + int nr_threads; for (cpu = 0; cpu < nr_cpus; cpu++) { evlist__for_each(evlist, pos) { if (!perf_evsel__is_group_leader(pos) || !pos->fd) continue; + nr_threads = perf_evlist__nr_threads(evlist, pos); for (thread = 0; thread < nr_threads; thread++) ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_DISABLE, 0); @@ -288,12 +303,13 @@ void perf_evlist__enable(struct perf_evlist *evlist) int cpu, thread; struct perf_evsel *pos; int nr_cpus = cpu_map__nr(evlist->cpus); - int nr_threads = thread_map__nr(evlist->threads); + int nr_threads; for (cpu = 0; cpu < nr_cpus; cpu++) { evlist__for_each(evlist, pos) { if (!perf_evsel__is_group_leader(pos) || !pos->fd) continue; + nr_threads = perf_evlist__nr_threads(evlist, pos); for (thread = 0; thread < nr_threads; thread++) ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_ENABLE, 0); @@ -305,12 +321,14 @@ int perf_evlist__disable_event(struct perf_evlist *evlist, struct perf_evsel *evsel) { int cpu, thread, err; + int nr_cpus = cpu_map__nr(evlist->cpus); + int nr_threads = perf_evlist__nr_threads(evlist, evsel); if (!evsel->fd) return 0; - for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { - for (thread = 0; thread < evlist->threads->nr; thread++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { + for (thread = 0; thread < nr_threads; thread++) { err = ioctl(FD(evsel, cpu, thread), PERF_EVENT_IOC_DISABLE, 0); if (err) @@ -324,12 +342,14 @@ int perf_evlist__enable_event(struct perf_evlist *evlist, struct perf_evsel *evsel) { int cpu, thread, err; + int nr_cpus = cpu_map__nr(evlist->cpus); + int nr_threads = perf_evlist__nr_threads(evlist, evsel); if (!evsel->fd) return -EINVAL; - for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { - for (thread = 0; thread < evlist->threads->nr; thread++) { + for (cpu = 0; cpu < nr_cpus; cpu++) { + for (thread = 0; thread < nr_threads; thread++) { err = ioctl(FD(evsel, cpu, thread), PERF_EVENT_IOC_ENABLE, 0); if (err) @@ -339,21 +359,111 @@ int perf_evlist__enable_event(struct perf_evlist *evlist, return 0; } -static int perf_evlist__alloc_pollfd(struct perf_evlist *evlist) +static int perf_evlist__enable_event_cpu(struct perf_evlist *evlist, + struct perf_evsel *evsel, int cpu) +{ + int thread, err; + int nr_threads = perf_evlist__nr_threads(evlist, evsel); + + if (!evsel->fd) + return -EINVAL; + + for (thread = 0; thread < nr_threads; thread++) { + err = ioctl(FD(evsel, cpu, thread), + PERF_EVENT_IOC_ENABLE, 0); + if (err) + return err; + } + return 0; +} + +static int perf_evlist__enable_event_thread(struct perf_evlist *evlist, + struct perf_evsel *evsel, + int thread) +{ + int cpu, err; + int nr_cpus = cpu_map__nr(evlist->cpus); + + if (!evsel->fd) + return -EINVAL; + + for (cpu = 0; cpu < nr_cpus; cpu++) { + err = ioctl(FD(evsel, cpu, thread), PERF_EVENT_IOC_ENABLE, 0); + if (err) + return err; + } + return 0; +} + +int perf_evlist__enable_event_idx(struct perf_evlist *evlist, + struct perf_evsel *evsel, int idx) +{ + bool per_cpu_mmaps = !cpu_map__empty(evlist->cpus); + + if (per_cpu_mmaps) + return perf_evlist__enable_event_cpu(evlist, evsel, idx); + else + return perf_evlist__enable_event_thread(evlist, evsel, idx); +} + +int perf_evlist__alloc_pollfd(struct perf_evlist *evlist) { int nr_cpus = cpu_map__nr(evlist->cpus); int nr_threads = thread_map__nr(evlist->threads); - int nfds = nr_cpus * nr_threads * evlist->nr_entries; - evlist->pollfd = malloc(sizeof(struct pollfd) * nfds); - return evlist->pollfd != NULL ? 0 : -ENOMEM; + int nfds = 0; + struct perf_evsel *evsel; + + list_for_each_entry(evsel, &evlist->entries, node) { + if (evsel->system_wide) + nfds += nr_cpus; + else + nfds += nr_cpus * nr_threads; + } + + if (fdarray__available_entries(&evlist->pollfd) < nfds && + fdarray__grow(&evlist->pollfd, nfds) < 0) + return -ENOMEM; + + return 0; +} + +static int __perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, int idx) +{ + int pos = fdarray__add(&evlist->pollfd, fd, POLLIN | POLLERR | POLLHUP); + /* + * Save the idx so that when we filter out fds POLLHUP'ed we can + * close the associated evlist->mmap[] entry. + */ + if (pos >= 0) { + evlist->pollfd.priv[pos].idx = idx; + + fcntl(fd, F_SETFL, O_NONBLOCK); + } + + return pos; +} + +int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd) +{ + return __perf_evlist__add_pollfd(evlist, fd, -1); +} + +static void perf_evlist__munmap_filtered(struct fdarray *fda, int fd) +{ + struct perf_evlist *evlist = container_of(fda, struct perf_evlist, pollfd); + + perf_evlist__mmap_put(evlist, fda->priv[fd].idx); +} + +int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask) +{ + return fdarray__filter(&evlist->pollfd, revents_and_mask, + perf_evlist__munmap_filtered); } -void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd) +int perf_evlist__poll(struct perf_evlist *evlist, int timeout) { - fcntl(fd, F_SETFL, O_NONBLOCK); - evlist->pollfd[evlist->nr_fds].fd = fd; - evlist->pollfd[evlist->nr_fds].events = POLLIN; - evlist->nr_fds++; + return fdarray__poll(&evlist->pollfd, timeout); } static void perf_evlist__id_hash(struct perf_evlist *evlist, @@ -566,14 +676,36 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx) return event; } +static bool perf_mmap__empty(struct perf_mmap *md) +{ + return perf_mmap__read_head(md) != md->prev; +} + +static void perf_evlist__mmap_get(struct perf_evlist *evlist, int idx) +{ + ++evlist->mmap[idx].refcnt; +} + +static void perf_evlist__mmap_put(struct perf_evlist *evlist, int idx) +{ + BUG_ON(evlist->mmap[idx].refcnt == 0); + + if (--evlist->mmap[idx].refcnt == 0) + __perf_evlist__munmap(evlist, idx); +} + void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx) { + struct perf_mmap *md = &evlist->mmap[idx]; + if (!evlist->overwrite) { - struct perf_mmap *md = &evlist->mmap[idx]; unsigned int old = md->prev; perf_mmap__write_tail(md, old); } + + if (md->refcnt == 1 && perf_mmap__empty(md)) + perf_evlist__mmap_put(evlist, idx); } static void __perf_evlist__munmap(struct perf_evlist *evlist, int idx) @@ -581,6 +713,7 @@ static void __perf_evlist__munmap(struct perf_evlist *evlist, int idx) if (evlist->mmap[idx].base != NULL) { munmap(evlist->mmap[idx].base, evlist->mmap_len); evlist->mmap[idx].base = NULL; + evlist->mmap[idx].refcnt = 0; } } @@ -606,12 +739,31 @@ static int perf_evlist__alloc_mmap(struct perf_evlist *evlist) return evlist->mmap != NULL ? 0 : -ENOMEM; } -static int __perf_evlist__mmap(struct perf_evlist *evlist, - int idx, int prot, int mask, int fd) +struct mmap_params { + int prot; + int mask; +}; + +static int __perf_evlist__mmap(struct perf_evlist *evlist, int idx, + struct mmap_params *mp, int fd) { + /* + * The last one will be done at perf_evlist__mmap_consume(), so that we + * make sure we don't prevent tools from consuming every last event in + * the ring buffer. + * + * I.e. we can get the POLLHUP meaning that the fd doesn't exist + * anymore, but the last events for it are still in the ring buffer, + * waiting to be consumed. + * + * Tools can chose to ignore this at their own discretion, but the + * evlist layer can't just drop it when filtering events in + * perf_evlist__filter_pollfd(). + */ + evlist->mmap[idx].refcnt = 2; evlist->mmap[idx].prev = 0; - evlist->mmap[idx].mask = mask; - evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, prot, + evlist->mmap[idx].mask = mp->mask; + evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, mp->prot, MAP_SHARED, fd, 0); if (evlist->mmap[idx].base == MAP_FAILED) { pr_debug2("failed to mmap perf event ring buffer, error %d\n", @@ -620,27 +772,37 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist, return -1; } - perf_evlist__add_pollfd(evlist, fd); return 0; } static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx, - int prot, int mask, int cpu, int thread, - int *output) + struct mmap_params *mp, int cpu, + int thread, int *output) { struct perf_evsel *evsel; evlist__for_each(evlist, evsel) { - int fd = FD(evsel, cpu, thread); + int fd; + + if (evsel->system_wide && thread) + continue; + + fd = FD(evsel, cpu, thread); if (*output == -1) { *output = fd; - if (__perf_evlist__mmap(evlist, idx, prot, mask, - *output) < 0) + if (__perf_evlist__mmap(evlist, idx, mp, *output) < 0) return -1; } else { if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, *output) != 0) return -1; + + perf_evlist__mmap_get(evlist, idx); + } + + if (__perf_evlist__add_pollfd(evlist, fd, idx) < 0) { + perf_evlist__mmap_put(evlist, idx); + return -1; } if ((evsel->attr.read_format & PERF_FORMAT_ID) && @@ -651,8 +813,8 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx, return 0; } -static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, - int mask) +static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, + struct mmap_params *mp) { int cpu, thread; int nr_cpus = cpu_map__nr(evlist->cpus); @@ -663,8 +825,8 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int output = -1; for (thread = 0; thread < nr_threads; thread++) { - if (perf_evlist__mmap_per_evsel(evlist, cpu, prot, mask, - cpu, thread, &output)) + if (perf_evlist__mmap_per_evsel(evlist, cpu, mp, cpu, + thread, &output)) goto out_unmap; } } @@ -677,8 +839,8 @@ out_unmap: return -1; } -static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, - int mask) +static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, + struct mmap_params *mp) { int thread; int nr_threads = thread_map__nr(evlist->threads); @@ -687,8 +849,8 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, for (thread = 0; thread < nr_threads; thread++) { int output = -1; - if (perf_evlist__mmap_per_evsel(evlist, thread, prot, mask, 0, - thread, &output)) + if (perf_evlist__mmap_per_evsel(evlist, thread, mp, 0, thread, + &output)) goto out_unmap; } @@ -793,18 +955,20 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages, struct perf_evsel *evsel; const struct cpu_map *cpus = evlist->cpus; const struct thread_map *threads = evlist->threads; - int prot = PROT_READ | (overwrite ? 0 : PROT_WRITE), mask; + struct mmap_params mp = { + .prot = PROT_READ | (overwrite ? 0 : PROT_WRITE), + }; if (evlist->mmap == NULL && perf_evlist__alloc_mmap(evlist) < 0) return -ENOMEM; - if (evlist->pollfd == NULL && perf_evlist__alloc_pollfd(evlist) < 0) + if (evlist->pollfd.entries == NULL && perf_evlist__alloc_pollfd(evlist) < 0) return -ENOMEM; evlist->overwrite = overwrite; evlist->mmap_len = perf_evlist__mmap_size(pages); pr_debug("mmap size %zuB\n", evlist->mmap_len); - mask = evlist->mmap_len - page_size - 1; + mp.mask = evlist->mmap_len - page_size - 1; evlist__for_each(evlist, evsel) { if ((evsel->attr.read_format & PERF_FORMAT_ID) && @@ -814,9 +978,9 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages, } if (cpu_map__empty(cpus)) - return perf_evlist__mmap_per_thread(evlist, prot, mask); + return perf_evlist__mmap_per_thread(evlist, &mp); - return perf_evlist__mmap_per_cpu(evlist, prot, mask); + return perf_evlist__mmap_per_cpu(evlist, &mp); } int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target) @@ -839,6 +1003,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target) out_delete_threads: thread_map__delete(evlist->threads); + evlist->threads = NULL; return -1; } @@ -1011,11 +1176,51 @@ void perf_evlist__close(struct perf_evlist *evlist) } } +static int perf_evlist__create_syswide_maps(struct perf_evlist *evlist) +{ + int err = -ENOMEM; + + /* + * Try reading /sys/devices/system/cpu/online to get + * an all cpus map. + * + * FIXME: -ENOMEM is the best we can do here, the cpu_map + * code needs an overhaul to properly forward the + * error, and we may not want to do that fallback to a + * default cpu identity map :-\ + */ + evlist->cpus = cpu_map__new(NULL); + if (evlist->cpus == NULL) + goto out; + + evlist->threads = thread_map__new_dummy(); + if (evlist->threads == NULL) + goto out_free_cpus; + + err = 0; +out: + return err; +out_free_cpus: + cpu_map__delete(evlist->cpus); + evlist->cpus = NULL; + goto out; +} + int perf_evlist__open(struct perf_evlist *evlist) { struct perf_evsel *evsel; int err; + /* + * Default: one fd per CPU, all threads, aka systemwide + * as sys_perf_event_open(cpu = -1, thread = -1) is EINVAL + */ + if (evlist->threads == NULL && evlist->cpus == NULL) { + err = perf_evlist__create_syswide_maps(evlist); + if (err < 0) + goto out_err; + } + perf_evlist__update_id_pos(evlist); evlist__for_each(evlist, evsel) { @@ -1055,6 +1260,8 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *tar } if (!evlist->workload.pid) { + int ret; + if (pipe_output) dup2(2, 1); @@ -1072,8 +1279,22 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *tar /* * Wait until the parent tells us to go. */ - if (read(go_pipe[0], &bf, 1) == -1) - perror("unable to read pipe"); + ret = read(go_pipe[0], &bf, 1); + /* + * The parent will ask for the execvp() to be performed by + * writing exactly one byte, in workload.cork_fd, usually via + * perf_evlist__start_workload(). + * + * For cancelling the workload without actuallin running it, + * the parent will just close workload.cork_fd, without writing + * anything, i.e. read will return zero and we just exit() + * here. + */ + if (ret != 1) { + if (ret == -1) + perror("unable to read pipe"); + exit(ret); + } execvp(argv[0], (char **)argv); @@ -1096,8 +1317,14 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *tar sigaction(SIGUSR1, &act, NULL); } - if (target__none(target)) + if (target__none(target)) { + if (evlist->threads == NULL) { + fprintf(stderr, "FATAL: evlist->threads need to be set at this point (%s:%d).\n", + __func__, __LINE__); + goto out_close_pipes; + } evlist->threads->map[0] = evlist->workload.pid; + } close(child_ready_pipe[1]); close(go_pipe[0]); @@ -1196,7 +1423,7 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused, int err, char *buf, size_t size) { int printed, value; - char sbuf[128], *emsg = strerror_r(err, sbuf, sizeof(sbuf)); + char sbuf[STRERR_BUFSIZE], *emsg = strerror_r(err, sbuf, sizeof(sbuf)); switch (err) { case EACCES: @@ -1214,10 +1441,11 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused, "For your workloads it needs to be <= 1\nHint:\t"); } printed += scnprintf(buf + printed, size - printed, - "For system wide tracing it needs to be set to -1"); + "For system wide tracing it needs to be set to -1.\n"); printed += scnprintf(buf + printed, size - printed, - ".\nHint:\tThe current value is %d.", value); + "Hint:\tTry: 'sudo sh -c \"echo -1 > /proc/sys/kernel/perf_event_paranoid\"'\n" + "Hint:\tThe current value is %d.", value); break; default: scnprintf(buf, size, "%s", emsg); @@ -1243,3 +1471,19 @@ void perf_evlist__to_front(struct perf_evlist *evlist, list_splice(&move, &evlist->entries); } + +void perf_evlist__set_tracking_event(struct perf_evlist *evlist, + struct perf_evsel *tracking_evsel) +{ + struct perf_evsel *evsel; + + if (tracking_evsel->tracking) + return; + + evlist__for_each(evlist, evsel) { + if (evsel != tracking_evsel) + evsel->tracking = false; + } + + tracking_evsel->tracking = true; +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index f5173cd63693..649b0c597283 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -2,6 +2,7 @@ #define __PERF_EVLIST_H 1 #include <linux/list.h> +#include <api/fd/array.h> #include <stdio.h> #include "../perf.h" #include "event.h" @@ -17,9 +18,15 @@ struct record_opts; #define PERF_EVLIST__HLIST_BITS 8 #define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS) +/** + * struct perf_mmap - perf's ring buffer mmap details + * + * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this + */ struct perf_mmap { void *base; int mask; + int refcnt; unsigned int prev; char event_copy[PERF_SAMPLE_MAX_SIZE]; }; @@ -29,7 +36,6 @@ struct perf_evlist { struct hlist_head heads[PERF_EVLIST__HLIST_SIZE]; int nr_entries; int nr_groups; - int nr_fds; int nr_mmaps; size_t mmap_len; int id_pos; @@ -40,8 +46,8 @@ struct perf_evlist { pid_t pid; } workload; bool overwrite; + struct fdarray pollfd; struct perf_mmap *mmap; - struct pollfd *pollfd; struct thread_map *threads; struct cpu_map *cpus; struct perf_evsel *selected; @@ -82,7 +88,11 @@ perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist, void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel, int cpu, int thread, u64 id); -void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd); +int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd); +int perf_evlist__alloc_pollfd(struct perf_evlist *evlist); +int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask); + +int perf_evlist__poll(struct perf_evlist *evlist, int timeout); struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id); @@ -107,6 +117,8 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, void *ucontext)); int perf_evlist__start_workload(struct perf_evlist *evlist); +struct option; + int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str, int unset); @@ -122,6 +134,8 @@ int perf_evlist__disable_event(struct perf_evlist *evlist, struct perf_evsel *evsel); int perf_evlist__enable_event(struct perf_evlist *evlist, struct perf_evsel *evsel); +int perf_evlist__enable_event_idx(struct perf_evlist *evlist, + struct perf_evsel *evsel, int idx); void perf_evlist__set_selected(struct perf_evlist *evlist, struct perf_evsel *evsel); @@ -262,4 +276,7 @@ void perf_evlist__to_front(struct perf_evlist *evlist, #define evlist__for_each_safe(evlist, tmp, evsel) \ __evlist__for_each_safe(&(evlist)->entries, tmp, evsel) +void perf_evlist__set_tracking_event(struct perf_evlist *evlist, + struct perf_evsel *tracking_evsel); + #endif /* __PERF_EVLIST_H */ diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 8606175fe1e8..2f9e68025ede 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -15,6 +15,8 @@ #include <linux/perf_event.h> #include <sys/resource.h> #include "asm/bug.h" +#include "callchain.h" +#include "cgroup.h" #include "evsel.h" #include "evlist.h" #include "util.h" @@ -29,8 +31,51 @@ static struct { bool sample_id_all; bool exclude_guest; bool mmap2; + bool cloexec; } perf_missing_features; +static int perf_evsel__no_extra_init(struct perf_evsel *evsel __maybe_unused) +{ + return 0; +} + +static void perf_evsel__no_extra_fini(struct perf_evsel *evsel __maybe_unused) +{ +} + +static struct { + size_t size; + int (*init)(struct perf_evsel *evsel); + void (*fini)(struct perf_evsel *evsel); +} perf_evsel__object = { + .size = sizeof(struct perf_evsel), + .init = perf_evsel__no_extra_init, + .fini = perf_evsel__no_extra_fini, +}; + +int perf_evsel__object_config(size_t object_size, + int (*init)(struct perf_evsel *evsel), + void (*fini)(struct perf_evsel *evsel)) +{ + + if (object_size == 0) + goto set_methods; + + if (perf_evsel__object.size > object_size) + return -EINVAL; + + perf_evsel__object.size = object_size; + +set_methods: + if (init != NULL) + perf_evsel__object.init = init; + + if (fini != NULL) + perf_evsel__object.fini = fini; + + return 0; +} + #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) int __perf_evsel__sample_size(u64 sample_type) @@ -115,16 +160,6 @@ void perf_evsel__calc_id_pos(struct perf_evsel *evsel) evsel->is_pos = __perf_evsel__calc_is_pos(evsel->attr.sample_type); } -void hists__init(struct hists *hists) -{ - memset(hists, 0, sizeof(*hists)); - hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT; - hists->entries_in = &hists->entries_in_array[0]; - hists->entries_collapsed = RB_ROOT; - hists->entries = RB_ROOT; - pthread_mutex_init(&hists->lock, NULL); -} - void __perf_evsel__set_sample_bit(struct perf_evsel *evsel, enum perf_event_sample_format bit) { @@ -161,19 +196,20 @@ void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr, int idx) { evsel->idx = idx; + evsel->tracking = !idx; evsel->attr = *attr; evsel->leader = evsel; evsel->unit = ""; evsel->scale = 1.0; INIT_LIST_HEAD(&evsel->node); - hists__init(&evsel->hists); + perf_evsel__object.init(evsel); evsel->sample_size = __perf_evsel__sample_size(attr->sample_type); perf_evsel__calc_id_pos(evsel); } struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) { - struct perf_evsel *evsel = zalloc(sizeof(*evsel)); + struct perf_evsel *evsel = zalloc(perf_evsel__object.size); if (evsel != NULL) perf_evsel__init(evsel, attr, idx); @@ -183,7 +219,7 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx) { - struct perf_evsel *evsel = zalloc(sizeof(*evsel)); + struct perf_evsel *evsel = zalloc(perf_evsel__object.size); if (evsel != NULL) { struct perf_event_attr attr = { @@ -501,20 +537,19 @@ int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size) } static void -perf_evsel__config_callgraph(struct perf_evsel *evsel, - struct record_opts *opts) +perf_evsel__config_callgraph(struct perf_evsel *evsel) { bool function = perf_evsel__is_function_event(evsel); struct perf_event_attr *attr = &evsel->attr; perf_evsel__set_sample_bit(evsel, CALLCHAIN); - if (opts->call_graph == CALLCHAIN_DWARF) { + if (callchain_param.record_mode == CALLCHAIN_DWARF) { if (!function) { perf_evsel__set_sample_bit(evsel, REGS_USER); perf_evsel__set_sample_bit(evsel, STACK_USER); attr->sample_regs_user = PERF_REGS_MASK; - attr->sample_stack_user = opts->stack_dump_size; + attr->sample_stack_user = callchain_param.dump_size; attr->exclude_callchain_user = 1; } else { pr_info("Cannot use DWARF unwind for function trace event," @@ -560,7 +595,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) { struct perf_evsel *leader = evsel->leader; struct perf_event_attr *attr = &evsel->attr; - int track = !evsel->idx; /* only the first counter needs these */ + int track = evsel->tracking; bool per_cpu = opts->target.default_per_cpu && !opts->target.per_thread; attr->sample_id_all = perf_missing_features.sample_id_all ? 0 : 1; @@ -623,8 +658,8 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) attr->mmap_data = track; } - if (opts->call_graph_enabled) - perf_evsel__config_callgraph(evsel, opts); + if (callchain_param.enabled && !evsel->no_aux_samples) + perf_evsel__config_callgraph(evsel); if (target__has_cpu(&opts->target)) perf_evsel__set_sample_bit(evsel, CPU); @@ -632,12 +667,15 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) if (opts->period) perf_evsel__set_sample_bit(evsel, PERIOD); - if (!perf_missing_features.sample_id_all && - (opts->sample_time || !opts->no_inherit || - target__has_cpu(&opts->target) || per_cpu)) + /* + * When the user explicitely disabled time don't force it here. + */ + if (opts->sample_time && + (!perf_missing_features.sample_id_all && + (!opts->no_inherit || target__has_cpu(&opts->target) || per_cpu))) perf_evsel__set_sample_bit(evsel, TIME); - if (opts->raw_samples) { + if (opts->raw_samples && !evsel->no_aux_samples) { perf_evsel__set_sample_bit(evsel, TIME); perf_evsel__set_sample_bit(evsel, RAW); perf_evsel__set_sample_bit(evsel, CPU); @@ -650,7 +688,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) attr->watermark = 0; attr->wakeup_events = 1; } - if (opts->branch_stack) { + if (opts->branch_stack && !evsel->no_aux_samples) { perf_evsel__set_sample_bit(evsel, BRANCH_STACK); attr->branch_sample_type = opts->branch_stack; } @@ -681,11 +719,20 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) if (target__none(&opts->target) && perf_evsel__is_group_leader(evsel) && !opts->initial_delay) attr->enable_on_exec = 1; + + if (evsel->immediate) { + attr->disabled = 0; + attr->enable_on_exec = 0; + } } -int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) +static int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) { int cpu, thread; + + if (evsel->system_wide) + nthreads = 1; + evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int)); if (evsel->fd) { @@ -704,6 +751,9 @@ static int perf_evsel__run_ioctl(struct perf_evsel *evsel, int ncpus, int nthrea { int cpu, thread; + if (evsel->system_wide) + nthreads = 1; + for (cpu = 0; cpu < ncpus; cpu++) { for (thread = 0; thread < nthreads; thread++) { int fd = FD(evsel, cpu, thread), @@ -734,6 +784,9 @@ int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads) int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads) { + if (evsel->system_wide) + nthreads = 1; + evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id)); if (evsel->sample_id == NULL) return -ENOMEM; @@ -761,13 +814,13 @@ int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus) return evsel->counts != NULL ? 0 : -ENOMEM; } -void perf_evsel__free_fd(struct perf_evsel *evsel) +static void perf_evsel__free_fd(struct perf_evsel *evsel) { xyarray__delete(evsel->fd); evsel->fd = NULL; } -void perf_evsel__free_id(struct perf_evsel *evsel) +static void perf_evsel__free_id(struct perf_evsel *evsel) { xyarray__delete(evsel->sample_id); evsel->sample_id = NULL; @@ -778,6 +831,9 @@ void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads) { int cpu, thread; + if (evsel->system_wide) + nthreads = 1; + for (cpu = 0; cpu < ncpus; cpu++) for (thread = 0; thread < nthreads; ++thread) { close(FD(evsel, cpu, thread)); @@ -795,16 +851,17 @@ void perf_evsel__exit(struct perf_evsel *evsel) assert(list_empty(&evsel->node)); perf_evsel__free_fd(evsel); perf_evsel__free_id(evsel); -} - -void perf_evsel__delete(struct perf_evsel *evsel) -{ - perf_evsel__exit(evsel); close_cgroup(evsel->cgrp); zfree(&evsel->group_name); if (evsel->tp_format) pevent_free_format(evsel->tp_format); zfree(&evsel->name); + perf_evsel__object.fini(evsel); +} + +void perf_evsel__delete(struct perf_evsel *evsel) +{ + perf_evsel__exit(evsel); free(evsel); } @@ -866,6 +923,9 @@ int __perf_evsel__read(struct perf_evsel *evsel, int cpu, thread; struct perf_counts_values *aggr = &evsel->counts->aggr, count; + if (evsel->system_wide) + nthreads = 1; + aggr->val = aggr->ena = aggr->run = 0; for (cpu = 0; cpu < ncpus; cpu++) { @@ -960,6 +1020,7 @@ static size_t perf_event_attr__fprintf(struct perf_event_attr *attr, FILE *fp) ret += PRINT_ATTR2(exclude_user, exclude_kernel); ret += PRINT_ATTR2(exclude_hv, exclude_idle); ret += PRINT_ATTR2(mmap, comm); + ret += PRINT_ATTR2(mmap2, comm_exec); ret += PRINT_ATTR2(freq, inherit_stat); ret += PRINT_ATTR2(enable_on_exec, task); ret += PRINT_ATTR2(watermark, precise_ip); @@ -967,7 +1028,6 @@ static size_t perf_event_attr__fprintf(struct perf_event_attr *attr, FILE *fp) ret += PRINT_ATTR2(exclude_host, exclude_guest); ret += PRINT_ATTR2N("excl.callchain_kern", exclude_callchain_kernel, "excl.callchain_user", exclude_callchain_user); - ret += PRINT_ATTR_U32(mmap2); ret += PRINT_ATTR_U32(wakeup_events); ret += PRINT_ATTR_U32(wakeup_watermark); @@ -988,21 +1048,28 @@ static size_t perf_event_attr__fprintf(struct perf_event_attr *attr, FILE *fp) static int __perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, struct thread_map *threads) { - int cpu, thread; - unsigned long flags = 0; + int cpu, thread, nthreads; + unsigned long flags = PERF_FLAG_FD_CLOEXEC; int pid = -1, err; enum { NO_CHANGE, SET_TO_MAX, INCREASED_MAX } set_rlimit = NO_CHANGE; + if (evsel->system_wide) + nthreads = 1; + else + nthreads = threads->nr; + if (evsel->fd == NULL && - perf_evsel__alloc_fd(evsel, cpus->nr, threads->nr) < 0) + perf_evsel__alloc_fd(evsel, cpus->nr, nthreads) < 0) return -ENOMEM; if (evsel->cgrp) { - flags = PERF_FLAG_PID_CGROUP; + flags |= PERF_FLAG_PID_CGROUP; pid = evsel->cgrp->fd; } fallback_missing_features: + if (perf_missing_features.cloexec) + flags &= ~(unsigned long)PERF_FLAG_FD_CLOEXEC; if (perf_missing_features.mmap2) evsel->attr.mmap2 = 0; if (perf_missing_features.exclude_guest) @@ -1016,10 +1083,10 @@ retry_sample_id: for (cpu = 0; cpu < cpus->nr; cpu++) { - for (thread = 0; thread < threads->nr; thread++) { + for (thread = 0; thread < nthreads; thread++) { int group_fd; - if (!evsel->cgrp) + if (!evsel->cgrp && !evsel->system_wide) pid = threads->map[thread]; group_fd = get_group_fd(evsel, cpu, thread); @@ -1071,7 +1138,10 @@ try_fallback: if (err != -EINVAL || cpu > 0 || thread > 0) goto out_close; - if (!perf_missing_features.mmap2 && evsel->attr.mmap2) { + if (!perf_missing_features.cloexec && (flags & PERF_FLAG_FD_CLOEXEC)) { + perf_missing_features.cloexec = true; + goto fallback_missing_features; + } else if (!perf_missing_features.mmap2 && evsel->attr.mmap2) { perf_missing_features.mmap2 = true; goto fallback_missing_features; } else if (!perf_missing_features.exclude_guest && @@ -1089,7 +1159,7 @@ out_close: close(FD(evsel, cpu, thread)); FD(evsel, cpu, thread) = -1; } - thread = threads->nr; + thread = nthreads; } while (--cpu >= 0); return err; } @@ -1940,6 +2010,7 @@ int perf_evsel__fprintf(struct perf_evsel *evsel, if_print(mmap); if_print(mmap2); if_print(comm); + if_print(comm_exec); if_print(freq); if_print(inherit_stat); if_print(enable_on_exec); @@ -1990,6 +2061,8 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err, int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target, int err, char *msg, size_t size) { + char sbuf[STRERR_BUFSIZE]; + switch (err) { case EPERM: case EACCES: @@ -2024,13 +2097,20 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target, "No APIC? If so then you can boot the kernel with the \"lapic\" boot parameter to force-enable it."); #endif break; + case EBUSY: + if (find_process("oprofiled")) + return scnprintf(msg, size, + "The PMU counters are busy/taken by another profiler.\n" + "We found oprofile daemon running, please stop it and try again."); + break; default: break; } return scnprintf(msg, size, - "The sys_perf_event_open() syscall returned with %d (%s) for event (%s). \n" + "The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n" "/bin/dmesg may provide additional information.\n" "No CONFIG_PERF_EVENTS=y kernel support configured?\n", - err, strerror(err), perf_evsel__name(evsel)); + err, strerror_r(err, sbuf, sizeof(sbuf)), + perf_evsel__name(evsel)); } diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index a52e9a5bb2d0..163c5604e5d1 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -7,8 +7,6 @@ #include <linux/perf_event.h> #include <linux/types.h> #include "xyarray.h" -#include "cgroup.h" -#include "hist.h" #include "symbol.h" struct perf_counts_values { @@ -43,6 +41,8 @@ struct perf_sample_id { u64 period; }; +struct cgroup_sel; + /** struct perf_evsel - event selector * * @name - Can be set to retain the original event name passed by the user, @@ -66,7 +66,6 @@ struct perf_evsel { struct perf_counts *prev_raw_counts; int idx; u32 ids; - struct hists hists; char *name; double scale; const char *unit; @@ -83,6 +82,10 @@ struct perf_evsel { int is_pos; bool supported; bool needs_swap; + bool no_aux_samples; + bool immediate; + bool system_wide; + bool tracking; /* parse modifier helper */ int exclude_GH; int nr_members; @@ -96,13 +99,16 @@ union u64_swap { u32 val32[2]; }; -#define hists_to_evsel(h) container_of(h, struct perf_evsel, hists) - struct cpu_map; +struct target; struct thread_map; struct perf_evlist; struct record_opts; +int perf_evsel__object_config(size_t object_size, + int (*init)(struct perf_evsel *evsel), + void (*fini)(struct perf_evsel *evsel)); + struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx); static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr) @@ -149,12 +155,9 @@ const char *perf_evsel__name(struct perf_evsel *evsel); const char *perf_evsel__group_name(struct perf_evsel *evsel); int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size); -int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads); int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads); int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus); void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus); -void perf_evsel__free_fd(struct perf_evsel *evsel); -void perf_evsel__free_id(struct perf_evsel *evsel); void perf_evsel__free_counts(struct perf_evsel *evsel); void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads); @@ -277,8 +280,6 @@ static inline int perf_evsel__read_scaled(struct perf_evsel *evsel, return __perf_evsel__read(evsel, ncpus, nthreads, true); } -void hists__init(struct hists *hists); - int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, struct perf_sample *sample); diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 893f8e2df928..ce0de00399da 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -200,6 +200,47 @@ static int write_buildid(const char *name, size_t name_len, u8 *build_id, return write_padded(fd, name, name_len + 1, len); } +static int __dsos__hit_all(struct list_head *head) +{ + struct dso *pos; + + list_for_each_entry(pos, head, node) + pos->hit = true; + + return 0; +} + +static int machine__hit_all_dsos(struct machine *machine) +{ + int err; + + err = __dsos__hit_all(&machine->kernel_dsos.head); + if (err) + return err; + + return __dsos__hit_all(&machine->user_dsos.head); +} + +int dsos__hit_all(struct perf_session *session) +{ + struct rb_node *nd; + int err; + + err = machine__hit_all_dsos(&session->machines.host); + if (err) + return err; + + for (nd = rb_first(&session->machines.guests); nd; nd = rb_next(nd)) { + struct machine *pos = rb_entry(nd, struct machine, rb_node); + + err = machine__hit_all_dsos(pos); + if (err) + return err; + } + + return 0; +} + static int __dsos__write_buildid_table(struct list_head *head, struct machine *machine, pid_t pid, u16 misc, int fd) @@ -215,9 +256,9 @@ static int __dsos__write_buildid_table(struct list_head *head, if (!pos->hit) continue; - if (is_vdso_map(pos->short_name)) { - name = (char *) VDSO__MAP_NAME; - name_len = sizeof(VDSO__MAP_NAME) + 1; + if (dso__is_vdso(pos)) { + name = pos->short_name; + name_len = pos->short_name_len + 1; } else if (dso__is_kcore(pos)) { machine__mmap_name(machine, nm, sizeof(nm)); name = nm; @@ -247,11 +288,12 @@ static int machine__write_buildid_table(struct machine *machine, int fd) umisc = PERF_RECORD_MISC_GUEST_USER; } - err = __dsos__write_buildid_table(&machine->kernel_dsos, machine, + err = __dsos__write_buildid_table(&machine->kernel_dsos.head, machine, machine->pid, kmisc, fd); if (err == 0) - err = __dsos__write_buildid_table(&machine->user_dsos, machine, - machine->pid, umisc, fd); + err = __dsos__write_buildid_table(&machine->user_dsos.head, + machine, machine->pid, umisc, + fd); return err; } @@ -298,7 +340,7 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir, len = scnprintf(filename, size, "%s%s%s", debugdir, slash ? "/" : "", - is_vdso ? VDSO__MAP_NAME : realname); + is_vdso ? DSO__NAME_VDSO : realname); if (mkdir_p(filename, 0755)) goto out_free; @@ -386,7 +428,7 @@ static int dso__cache_build_id(struct dso *dso, struct machine *machine, const char *debugdir) { bool is_kallsyms = dso->kernel && dso->long_name[0] != '/'; - bool is_vdso = is_vdso_map(dso->short_name); + bool is_vdso = dso__is_vdso(dso); const char *name = dso->long_name; char nm[PATH_MAX]; @@ -414,9 +456,10 @@ static int __dsos__cache_build_ids(struct list_head *head, static int machine__cache_build_ids(struct machine *machine, const char *debugdir) { - int ret = __dsos__cache_build_ids(&machine->kernel_dsos, machine, + int ret = __dsos__cache_build_ids(&machine->kernel_dsos.head, machine, debugdir); - ret |= __dsos__cache_build_ids(&machine->user_dsos, machine, debugdir); + ret |= __dsos__cache_build_ids(&machine->user_dsos.head, machine, + debugdir); return ret; } @@ -442,8 +485,10 @@ static int perf_session__cache_build_ids(struct perf_session *session) static bool machine__read_build_ids(struct machine *machine, bool with_hits) { - bool ret = __dsos__read_build_ids(&machine->kernel_dsos, with_hits); - ret |= __dsos__read_build_ids(&machine->user_dsos, with_hits); + bool ret; + + ret = __dsos__read_build_ids(&machine->kernel_dsos.head, with_hits); + ret |= __dsos__read_build_ids(&machine->user_dsos.head, with_hits); return ret; } @@ -1507,7 +1552,7 @@ static int __event_process_build_id(struct build_id_event *bev, struct perf_session *session) { int err = -1; - struct list_head *head; + struct dsos *dsos; struct machine *machine; u16 misc; struct dso *dso; @@ -1522,22 +1567,22 @@ static int __event_process_build_id(struct build_id_event *bev, switch (misc) { case PERF_RECORD_MISC_KERNEL: dso_type = DSO_TYPE_KERNEL; - head = &machine->kernel_dsos; + dsos = &machine->kernel_dsos; break; case PERF_RECORD_MISC_GUEST_KERNEL: dso_type = DSO_TYPE_GUEST_KERNEL; - head = &machine->kernel_dsos; + dsos = &machine->kernel_dsos; break; case PERF_RECORD_MISC_USER: case PERF_RECORD_MISC_GUEST_USER: dso_type = DSO_TYPE_USER; - head = &machine->user_dsos; + dsos = &machine->user_dsos; break; default: goto out; } - dso = __dsos__findnew(head, filename); + dso = __dsos__findnew(dsos, filename); if (dso != NULL) { char sbuild_id[BUILD_ID_SIZE * 2 + 1]; diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index d08cfe499404..8f5cbaea64a5 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -151,6 +151,8 @@ int perf_event__process_build_id(struct perf_tool *tool, struct perf_session *session); bool is_perf_magic(u64 magic); +int dsos__hit_all(struct perf_session *session); + /* * arch specific callback */ diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 30df6187ee02..6e88b9e395df 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -3,6 +3,7 @@ #include "hist.h" #include "session.h" #include "sort.h" +#include "evlist.h" #include "evsel.h" #include "annotate.h" #include <math.h> @@ -14,13 +15,6 @@ static bool hists__filter_entry_by_thread(struct hists *hists, static bool hists__filter_entry_by_symbol(struct hists *hists, struct hist_entry *he); -struct callchain_param callchain_param = { - .mode = CHAIN_GRAPH_REL, - .min_percent = 0.5, - .order = ORDER_CALLEE, - .key = CCKEY_FUNCTION -}; - u16 hists__col_len(struct hists *hists, enum hist_column col) { return hists->col_len[col]; @@ -277,6 +271,28 @@ void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel) } } +void hists__delete_entries(struct hists *hists) +{ + struct rb_node *next = rb_first(&hists->entries); + struct hist_entry *n; + + while (next) { + n = rb_entry(next, struct hist_entry, rb_node); + next = rb_next(&n->rb_node); + + rb_erase(&n->rb_node, &hists->entries); + + if (sort__need_collapse) + rb_erase(&n->rb_node_in, &hists->entries_collapsed); + + --hists->nr_entries; + if (!n->filtered) + --hists->nr_non_filtered_entries; + + hist_entry__free(n); + } +} + /* * histogram, sorted on item, collects periods */ @@ -494,6 +510,7 @@ iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al { u64 cost; struct mem_info *mi = iter->priv; + struct hists *hists = evsel__hists(iter->evsel); struct hist_entry *he; if (mi == NULL) @@ -510,7 +527,7 @@ iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al * and this is indirectly achieved by passing period=weight here * and the he_stat__add_period() function. */ - he = __hists__add_entry(&iter->evsel->hists, al, iter->parent, NULL, mi, + he = __hists__add_entry(hists, al, iter->parent, NULL, mi, cost, cost, 0, true); if (!he) return -ENOMEM; @@ -524,13 +541,14 @@ iter_finish_mem_entry(struct hist_entry_iter *iter, struct addr_location *al __maybe_unused) { struct perf_evsel *evsel = iter->evsel; + struct hists *hists = evsel__hists(evsel); struct hist_entry *he = iter->he; int err = -EINVAL; if (he == NULL) goto out; - hists__inc_nr_samples(&evsel->hists, he->filtered); + hists__inc_nr_samples(hists, he->filtered); err = hist_entry__append_callchain(he, iter->sample); @@ -596,6 +614,7 @@ iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *a { struct branch_info *bi; struct perf_evsel *evsel = iter->evsel; + struct hists *hists = evsel__hists(evsel); struct hist_entry *he = NULL; int i = iter->curr; int err = 0; @@ -609,12 +628,12 @@ iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *a * The report shows the percentage of total branches captured * and not events sampled. Thus we use a pseudo period of 1. */ - he = __hists__add_entry(&evsel->hists, al, iter->parent, &bi[i], NULL, + he = __hists__add_entry(hists, al, iter->parent, &bi[i], NULL, 1, 1, 0, true); if (he == NULL) return -ENOMEM; - hists__inc_nr_samples(&evsel->hists, he->filtered); + hists__inc_nr_samples(hists, he->filtered); out: iter->he = he; @@ -646,7 +665,7 @@ iter_add_single_normal_entry(struct hist_entry_iter *iter, struct addr_location struct perf_sample *sample = iter->sample; struct hist_entry *he; - he = __hists__add_entry(&evsel->hists, al, iter->parent, NULL, NULL, + he = __hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL, sample->period, sample->weight, sample->transaction, true); if (he == NULL) @@ -669,7 +688,7 @@ iter_finish_normal_entry(struct hist_entry_iter *iter, iter->he = NULL; - hists__inc_nr_samples(&evsel->hists, he->filtered); + hists__inc_nr_samples(evsel__hists(evsel), he->filtered); return hist_entry__append_callchain(he, sample); } @@ -702,12 +721,13 @@ iter_add_single_cumulative_entry(struct hist_entry_iter *iter, struct addr_location *al) { struct perf_evsel *evsel = iter->evsel; + struct hists *hists = evsel__hists(evsel); struct perf_sample *sample = iter->sample; struct hist_entry **he_cache = iter->priv; struct hist_entry *he; int err = 0; - he = __hists__add_entry(&evsel->hists, al, iter->parent, NULL, NULL, + he = __hists__add_entry(hists, al, iter->parent, NULL, NULL, sample->period, sample->weight, sample->transaction, true); if (he == NULL) @@ -724,7 +744,7 @@ iter_add_single_cumulative_entry(struct hist_entry_iter *iter, */ callchain_cursor_commit(&callchain_cursor); - hists__inc_nr_samples(&evsel->hists, he->filtered); + hists__inc_nr_samples(hists, he->filtered); return err; } @@ -780,7 +800,7 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter, } } - he = __hists__add_entry(&evsel->hists, al, iter->parent, NULL, NULL, + he = __hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL, sample->period, sample->weight, sample->transaction, false); if (he == NULL) @@ -1386,6 +1406,21 @@ int hists__link(struct hists *leader, struct hists *other) return 0; } + +size_t perf_evlist__fprintf_nr_events(struct perf_evlist *evlist, FILE *fp) +{ + struct perf_evsel *pos; + size_t ret = 0; + + evlist__for_each(evlist, pos) { + ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); + ret += events_stats__fprintf(&evsel__hists(pos)->stats, fp); + } + + return ret; +} + + u64 hists__total_period(struct hists *hists) { return symbol_conf.filter_relative ? hists->stats.total_non_filtered_period : @@ -1412,3 +1447,31 @@ int perf_hist_config(const char *var, const char *value) return 0; } + +static int hists_evsel__init(struct perf_evsel *evsel) +{ + struct hists *hists = evsel__hists(evsel); + + memset(hists, 0, sizeof(*hists)); + hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT; + hists->entries_in = &hists->entries_in_array[0]; + hists->entries_collapsed = RB_ROOT; + hists->entries = RB_ROOT; + pthread_mutex_init(&hists->lock, NULL); + return 0; +} + +/* + * XXX We probably need a hists_evsel__exit() to free the hist_entries + * stored in the rbtree... + */ + +int hists__init(void) +{ + int err = perf_evsel__object_config(sizeof(struct hists_evsel), + hists_evsel__init, NULL); + if (err) + fputs("FATAL ERROR: Couldn't setup hists class\n", stderr); + + return err; +} diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index 742f49a85725..d0ef9a19a744 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -4,12 +4,11 @@ #include <linux/types.h> #include <pthread.h> #include "callchain.h" +#include "evsel.h" #include "header.h" #include "color.h" #include "ui/progress.h" -extern struct callchain_param callchain_param; - struct hist_entry; struct addr_location; struct symbol; @@ -23,32 +22,6 @@ enum hist_filter { HIST_FILTER__HOST, }; -/* - * The kernel collects the number of events it couldn't send in a stretch and - * when possible sends this number in a PERF_RECORD_LOST event. The number of - * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while - * total_lost tells exactly how many events the kernel in fact lost, i.e. it is - * the sum of all struct lost_event.lost fields reported. - * - * The total_period is needed because by default auto-freq is used, so - * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get - * the total number of low level events, it is necessary to to sum all struct - * sample_event.period and stash the result in total_period. - */ -struct events_stats { - u64 total_period; - u64 total_non_filtered_period; - u64 total_lost; - u64 total_invalid_chains; - u32 nr_events[PERF_RECORD_HEADER_MAX]; - u32 nr_non_filtered_samples; - u32 nr_lost_warned; - u32 nr_unknown_events; - u32 nr_invalid_chains; - u32 nr_unknown_id; - u32 nr_unprocessable_samples; -}; - enum hist_column { HISTC_SYMBOL, HISTC_DSO, @@ -152,6 +125,7 @@ void hists__output_resort(struct hists *hists); void hists__collapse_resort(struct hists *hists, struct ui_progress *prog); void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel); +void hists__delete_entries(struct hists *hists); void hists__output_recalc_col_len(struct hists *hists, int max_rows); u64 hists__total_period(struct hists *hists); @@ -164,6 +138,7 @@ size_t events_stats__fprintf(struct events_stats *stats, FILE *fp); size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, int max_cols, float min_pcnt, FILE *fp); +size_t perf_evlist__fprintf_nr_events(struct perf_evlist *evlist, FILE *fp); void hists__filter_by_dso(struct hists *hists); void hists__filter_by_thread(struct hists *hists); @@ -184,6 +159,25 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *he); void hists__match(struct hists *leader, struct hists *other); int hists__link(struct hists *leader, struct hists *other); +struct hists_evsel { + struct perf_evsel evsel; + struct hists hists; +}; + +static inline struct perf_evsel *hists_to_evsel(struct hists *hists) +{ + struct hists_evsel *hevsel = container_of(hists, struct hists_evsel, hists); + return &hevsel->evsel; +} + +static inline struct hists *evsel__hists(struct perf_evsel *evsel) +{ + struct hists_evsel *hevsel = (struct hists_evsel *)evsel; + return &hevsel->hists; +} + +int hists__init(void); + struct perf_hpp { char *buf; size_t size; @@ -192,6 +186,7 @@ struct perf_hpp { }; struct perf_hpp_fmt { + const char *name; int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct perf_evsel *evsel); int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, @@ -207,6 +202,8 @@ struct perf_hpp_fmt { struct list_head list; struct list_head sort_list; bool elide; + int len; + int user_len; }; extern struct list_head perf_hpp__list; @@ -261,17 +258,19 @@ static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format) } void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists); +void perf_hpp__reset_sort_width(struct perf_hpp_fmt *fmt, struct hists *hists); +void perf_hpp__set_user_width(const char *width_list_str); typedef u64 (*hpp_field_fn)(struct hist_entry *he); typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front); typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...); -int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he, - hpp_field_fn get_field, const char *fmt, - hpp_snprint_fn print_fn, bool fmt_percent); -int __hpp__fmt_acc(struct perf_hpp *hpp, struct hist_entry *he, - hpp_field_fn get_field, const char *fmt, - hpp_snprint_fn print_fn, bool fmt_percent); +int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, + struct hist_entry *he, hpp_field_fn get_field, + const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent); +int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, + struct hist_entry *he, hpp_field_fn get_field, + const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent); static inline void advance_hpp(struct perf_hpp *hpp, int inc) { diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h index 9844c31b7c2b..09e8e7aea7c6 100644 --- a/tools/perf/util/include/linux/kernel.h +++ b/tools/perf/util/include/linux/kernel.h @@ -94,27 +94,6 @@ static inline int scnprintf(char * buf, size_t size, const char * fmt, ...) return (i >= ssize) ? (ssize - 1) : i; } -int eprintf(int level, - const char *fmt, ...) __attribute__((format(printf, 2, 3))); - -#ifndef pr_fmt -#define pr_fmt(fmt) fmt -#endif - -#define pr_err(fmt, ...) \ - eprintf(0, pr_fmt(fmt), ##__VA_ARGS__) -#define pr_warning(fmt, ...) \ - eprintf(0, pr_fmt(fmt), ##__VA_ARGS__) -#define pr_info(fmt, ...) \ - eprintf(0, pr_fmt(fmt), ##__VA_ARGS__) -#define pr_debug(fmt, ...) \ - eprintf(1, pr_fmt(fmt), ##__VA_ARGS__) -#define pr_debugN(n, fmt, ...) \ - eprintf(n, pr_fmt(fmt), ##__VA_ARGS__) -#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__) -#define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__) -#define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__) - /* * This looks more complex than it should be. But we need to * get the type for the ~ right in round_down (it needs to be diff --git a/tools/perf/util/include/linux/string.h b/tools/perf/util/include/linux/string.h index 97a800738226..6f19c548ecc0 100644 --- a/tools/perf/util/include/linux/string.h +++ b/tools/perf/util/include/linux/string.h @@ -1,4 +1,3 @@ #include <string.h> void *memdup(const void *src, size_t len); -int str_append(char **s, int *len, const char *a); diff --git a/tools/perf/util/kvm-stat.h b/tools/perf/util/kvm-stat.h new file mode 100644 index 000000000000..cf1d7913783b --- /dev/null +++ b/tools/perf/util/kvm-stat.h @@ -0,0 +1,139 @@ +#ifndef __PERF_KVM_STAT_H +#define __PERF_KVM_STAT_H + +#include "../perf.h" +#include "evsel.h" +#include "evlist.h" +#include "session.h" +#include "tool.h" +#include "stat.h" + +struct event_key { + #define INVALID_KEY (~0ULL) + u64 key; + int info; + struct exit_reasons_table *exit_reasons; +}; + +struct kvm_event_stats { + u64 time; + struct stats stats; +}; + +struct kvm_event { + struct list_head hash_entry; + struct rb_node rb; + + struct event_key key; + + struct kvm_event_stats total; + + #define DEFAULT_VCPU_NUM 8 + int max_vcpu; + struct kvm_event_stats *vcpu; +}; + +typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int); + +struct kvm_event_key { + const char *name; + key_cmp_fun key; +}; + +struct perf_kvm_stat; + +struct child_event_ops { + void (*get_key)(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key); + const char *name; +}; + +struct kvm_events_ops { + bool (*is_begin_event)(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key); + bool (*is_end_event)(struct perf_evsel *evsel, + struct perf_sample *sample, struct event_key *key); + struct child_event_ops *child_ops; + void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, + char *decode); + const char *name; +}; + +struct exit_reasons_table { + unsigned long exit_code; + const char *reason; +}; + +#define EVENTS_BITS 12 +#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS) + +struct perf_kvm_stat { + struct perf_tool tool; + struct record_opts opts; + struct perf_evlist *evlist; + struct perf_session *session; + + const char *file_name; + const char *report_event; + const char *sort_key; + int trace_vcpu; + + struct exit_reasons_table *exit_reasons; + const char *exit_reasons_isa; + + struct kvm_events_ops *events_ops; + key_cmp_fun compare; + struct list_head kvm_events_cache[EVENTS_CACHE_SIZE]; + + u64 total_time; + u64 total_count; + u64 lost_events; + u64 duration; + + struct intlist *pid_list; + + struct rb_root result; + + int timerfd; + unsigned int display_time; + bool live; +}; + +struct kvm_reg_events_ops { + const char *name; + struct kvm_events_ops *ops; +}; + +void exit_event_get_key(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key); +bool exit_event_begin(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key); +bool exit_event_end(struct perf_evsel *evsel, + struct perf_sample *sample, + struct event_key *key); +void exit_event_decode_key(struct perf_kvm_stat *kvm, + struct event_key *key, + char *decode); + +bool kvm_exit_event(struct perf_evsel *evsel); +bool kvm_entry_event(struct perf_evsel *evsel); + +#define define_exit_reasons_table(name, symbols) \ + static struct exit_reasons_table name[] = { \ + symbols, { -1, NULL } \ + } + +/* + * arch specific callbacks and data structures + */ +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid); + +extern const char * const kvm_events_tp[]; +extern struct kvm_reg_events_ops kvm_reg_events_ops[]; +extern const char * const kvm_skip_events[]; + +#endif /* __PERF_KVM_STAT_H */ diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index c73e1fc12e53..34fc7c8672e4 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -8,33 +8,44 @@ #include "sort.h" #include "strlist.h" #include "thread.h" +#include "vdso.h" #include <stdbool.h> #include <symbol/kallsyms.h> #include "unwind.h" +static void dsos__init(struct dsos *dsos) +{ + INIT_LIST_HEAD(&dsos->head); + dsos->root = RB_ROOT; +} + int machine__init(struct machine *machine, const char *root_dir, pid_t pid) { map_groups__init(&machine->kmaps); RB_CLEAR_NODE(&machine->rb_node); - INIT_LIST_HEAD(&machine->user_dsos); - INIT_LIST_HEAD(&machine->kernel_dsos); + dsos__init(&machine->user_dsos); + dsos__init(&machine->kernel_dsos); machine->threads = RB_ROOT; INIT_LIST_HEAD(&machine->dead_threads); machine->last_match = NULL; + machine->vdso_info = NULL; + machine->kmaps.machine = machine; machine->pid = pid; machine->symbol_filter = NULL; machine->id_hdr_size = 0; + machine->comm_exec = false; + machine->kernel_start = 0; machine->root_dir = strdup(root_dir); if (machine->root_dir == NULL) return -ENOMEM; if (pid != HOST_KERNEL_ID) { - struct thread *thread = machine__findnew_thread(machine, 0, + struct thread *thread = machine__findnew_thread(machine, -1, pid); char comm[64]; @@ -45,6 +56,8 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid) thread__set_comm(thread, comm, 0); } + machine->current_tid = NULL; + return 0; } @@ -65,11 +78,12 @@ out_delete: return NULL; } -static void dsos__delete(struct list_head *dsos) +static void dsos__delete(struct dsos *dsos) { struct dso *pos, *n; - list_for_each_entry_safe(pos, n, dsos, node) { + list_for_each_entry_safe(pos, n, &dsos->head, node) { + RB_CLEAR_NODE(&pos->rb_node); list_del(&pos->node); dso__delete(pos); } @@ -103,7 +117,9 @@ void machine__exit(struct machine *machine) map_groups__exit(&machine->kmaps); dsos__delete(&machine->user_dsos); dsos__delete(&machine->kernel_dsos); + vdso__exit(machine); zfree(&machine->root_dir); + zfree(&machine->current_tid); } void machine__delete(struct machine *machine) @@ -172,6 +188,19 @@ void machines__set_symbol_filter(struct machines *machines, } } +void machines__set_comm_exec(struct machines *machines, bool comm_exec) +{ + struct rb_node *nd; + + machines->host.comm_exec = comm_exec; + + for (nd = rb_first(&machines->guests); nd; nd = rb_next(nd)) { + struct machine *machine = rb_entry(nd, struct machine, rb_node); + + machine->comm_exec = comm_exec; + } +} + struct machine *machines__find(struct machines *machines, pid_t pid) { struct rb_node **p = &machines->guests.rb_node; @@ -272,6 +301,52 @@ void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size) return; } +static void machine__update_thread_pid(struct machine *machine, + struct thread *th, pid_t pid) +{ + struct thread *leader; + + if (pid == th->pid_ || pid == -1 || th->pid_ != -1) + return; + + th->pid_ = pid; + + if (th->pid_ == th->tid) + return; + + leader = machine__findnew_thread(machine, th->pid_, th->pid_); + if (!leader) + goto out_err; + + if (!leader->mg) + leader->mg = map_groups__new(); + + if (!leader->mg) + goto out_err; + + if (th->mg == leader->mg) + return; + + if (th->mg) { + /* + * Maps are created from MMAP events which provide the pid and + * tid. Consequently there never should be any maps on a thread + * with an unknown pid. Just print an error if there are. + */ + if (!map_groups__empty(th->mg)) + pr_err("Discarding thread maps for %d:%d\n", + th->pid_, th->tid); + map_groups__delete(th->mg); + } + + th->mg = map_groups__get(leader->mg); + + return; + +out_err: + pr_err("Failed to join map groups for %d:%d\n", th->pid_, th->tid); +} + static struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid, bool create) @@ -285,10 +360,10 @@ static struct thread *__machine__findnew_thread(struct machine *machine, * so most of the time we dont have to look up * the full rbtree: */ - if (machine->last_match && machine->last_match->tid == tid) { - if (pid && pid != machine->last_match->pid_) - machine->last_match->pid_ = pid; - return machine->last_match; + th = machine->last_match; + if (th && th->tid == tid) { + machine__update_thread_pid(machine, th, pid); + return th; } while (*p != NULL) { @@ -297,8 +372,7 @@ static struct thread *__machine__findnew_thread(struct machine *machine, if (th->tid == tid) { machine->last_match = th; - if (pid && pid != th->pid_) - th->pid_ = pid; + machine__update_thread_pid(machine, th, pid); return th; } @@ -325,8 +399,10 @@ static struct thread *__machine__findnew_thread(struct machine *machine, * within thread__init_map_groups to find the thread * leader and that would screwed the rb tree. */ - if (thread__init_map_groups(th, machine)) + if (thread__init_map_groups(th, machine)) { + thread__delete(th); return NULL; + } } return th; @@ -344,17 +420,31 @@ struct thread *machine__find_thread(struct machine *machine, pid_t pid, return __machine__findnew_thread(machine, pid, tid, false); } +struct comm *machine__thread_exec_comm(struct machine *machine, + struct thread *thread) +{ + if (machine->comm_exec) + return thread__exec_comm(thread); + else + return thread__comm(thread); +} + int machine__process_comm_event(struct machine *machine, union perf_event *event, struct perf_sample *sample) { struct thread *thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid); + bool exec = event->header.misc & PERF_RECORD_MISC_COMM_EXEC; + + if (exec) + machine->comm_exec = true; if (dump_trace) perf_event__fprintf_comm(event, stdout); - if (thread == NULL || thread__set_comm(thread, event->comm.comm, sample->time)) { + if (thread == NULL || + __thread__set_comm(thread, event->comm.comm, sample->time, exec)) { dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); return -1; } @@ -394,23 +484,23 @@ struct map *machine__new_module(struct machine *machine, u64 start, size_t machines__fprintf_dsos(struct machines *machines, FILE *fp) { struct rb_node *nd; - size_t ret = __dsos__fprintf(&machines->host.kernel_dsos, fp) + - __dsos__fprintf(&machines->host.user_dsos, fp); + size_t ret = __dsos__fprintf(&machines->host.kernel_dsos.head, fp) + + __dsos__fprintf(&machines->host.user_dsos.head, fp); for (nd = rb_first(&machines->guests); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); - ret += __dsos__fprintf(&pos->kernel_dsos, fp); - ret += __dsos__fprintf(&pos->user_dsos, fp); + ret += __dsos__fprintf(&pos->kernel_dsos.head, fp); + ret += __dsos__fprintf(&pos->user_dsos.head, fp); } return ret; } -size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp, +size_t machine__fprintf_dsos_buildid(struct machine *m, FILE *fp, bool (skip)(struct dso *dso, int parm), int parm) { - return __dsos__fprintf_buildid(&machine->kernel_dsos, fp, skip, parm) + - __dsos__fprintf_buildid(&machine->user_dsos, fp, skip, parm); + return __dsos__fprintf_buildid(&m->kernel_dsos.head, fp, skip, parm) + + __dsos__fprintf_buildid(&m->user_dsos.head, fp, skip, parm); } size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp, @@ -511,8 +601,8 @@ const char *ref_reloc_sym_names[] = {"_text", "_stext", NULL}; * Returns the name of the start symbol in *symbol_name. Pass in NULL as * symbol_name if it's not that important. */ -static u64 machine__get_kernel_start_addr(struct machine *machine, - const char **symbol_name) +static u64 machine__get_running_kernel_start(struct machine *machine, + const char **symbol_name) { char filename[PATH_MAX]; int i; @@ -539,7 +629,7 @@ static u64 machine__get_kernel_start_addr(struct machine *machine, int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) { enum map_type type; - u64 start = machine__get_kernel_start_addr(machine, NULL); + u64 start = machine__get_running_kernel_start(machine, NULL); for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; @@ -858,7 +948,7 @@ int machine__create_kernel_maps(struct machine *machine) { struct dso *kernel = machine__get_kernel(machine); const char *name; - u64 addr = machine__get_kernel_start_addr(machine, &name); + u64 addr = machine__get_running_kernel_start(machine, &name); if (!addr) return -1; @@ -911,7 +1001,7 @@ static bool machine__uses_kcore(struct machine *machine) { struct dso *dso; - list_for_each_entry(dso, &machine->kernel_dsos, node) { + list_for_each_entry(dso, &machine->kernel_dsos.head, node) { if (dso__is_kcore(dso)) return true; } @@ -1045,14 +1135,14 @@ int machine__process_mmap2_event(struct machine *machine, else type = MAP__FUNCTION; - map = map__new(&machine->user_dsos, event->mmap2.start, + map = map__new(machine, event->mmap2.start, event->mmap2.len, event->mmap2.pgoff, event->mmap2.pid, event->mmap2.maj, event->mmap2.min, event->mmap2.ino, event->mmap2.ino_generation, event->mmap2.prot, event->mmap2.flags, - event->mmap2.filename, type); + event->mmap2.filename, type, thread); if (map == NULL) goto out_problem; @@ -1095,11 +1185,11 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event else type = MAP__FUNCTION; - map = map__new(&machine->user_dsos, event->mmap.start, + map = map__new(machine, event->mmap.start, event->mmap.len, event->mmap.pgoff, event->mmap.pid, 0, 0, 0, 0, 0, 0, event->mmap.filename, - type); + type, thread); if (map == NULL) goto out_problem; @@ -1231,6 +1321,16 @@ static void ip__resolve_data(struct machine *machine, struct thread *thread, thread__find_addr_location(thread, machine, m, MAP__VARIABLE, addr, &al); + if (al.map == NULL) { + /* + * some shared data regions have execute bit set which puts + * their mapping in the MAP__FUNCTION type array. + * Check there as a fallback option before dropping the sample. + */ + thread__find_addr_location(thread, machine, m, MAP__FUNCTION, addr, + &al); + } + ams->addr = addr; ams->al_addr = al.addr; ams->sym = al.sym; @@ -1281,7 +1381,9 @@ static int machine__resolve_callchain_sample(struct machine *machine, u8 cpumode = PERF_RECORD_MISC_USER; int chain_nr = min(max_stack, (int)chain->nr); int i; + int j; int err; + int skip_idx __maybe_unused; callchain_cursor_reset(&callchain_cursor); @@ -1290,14 +1392,26 @@ static int machine__resolve_callchain_sample(struct machine *machine, return 0; } + /* + * Based on DWARF debug information, some architectures skip + * a callchain entry saved by the kernel. + */ + skip_idx = arch_skip_callchain_idx(machine, thread, chain); + for (i = 0; i < chain_nr; i++) { u64 ip; struct addr_location al; if (callchain_param.order == ORDER_CALLEE) - ip = chain->ips[i]; + j = i; else - ip = chain->ips[chain->nr - i - 1]; + j = chain->nr - i - 1; + +#ifdef HAVE_SKIP_CALLCHAIN_IDX + if (j == skip_idx) + continue; +#endif + ip = chain->ips[j]; if (ip >= PERF_CONTEXT_MAX) { switch (ip) { @@ -1420,3 +1534,68 @@ int __machine__synthesize_threads(struct machine *machine, struct perf_tool *too /* command specified */ return 0; } + +pid_t machine__get_current_tid(struct machine *machine, int cpu) +{ + if (cpu < 0 || cpu >= MAX_NR_CPUS || !machine->current_tid) + return -1; + + return machine->current_tid[cpu]; +} + +int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid, + pid_t tid) +{ + struct thread *thread; + + if (cpu < 0) + return -EINVAL; + + if (!machine->current_tid) { + int i; + + machine->current_tid = calloc(MAX_NR_CPUS, sizeof(pid_t)); + if (!machine->current_tid) + return -ENOMEM; + for (i = 0; i < MAX_NR_CPUS; i++) + machine->current_tid[i] = -1; + } + + if (cpu >= MAX_NR_CPUS) { + pr_err("Requested CPU %d too large. ", cpu); + pr_err("Consider raising MAX_NR_CPUS\n"); + return -EINVAL; + } + + machine->current_tid[cpu] = tid; + + thread = machine__findnew_thread(machine, pid, tid); + if (!thread) + return -ENOMEM; + + thread->cpu = cpu; + + return 0; +} + +int machine__get_kernel_start(struct machine *machine) +{ + struct map *map = machine__kernel_map(machine, MAP__FUNCTION); + int err = 0; + + /* + * The only addresses above 2^63 are kernel addresses of a 64-bit + * kernel. Note that addresses are unsigned so that on a 32-bit system + * all addresses including kernel addresses are less than 2^32. In + * that case (32-bit system), if the kernel mapping is unknown, all + * addresses will be assumed to be in user space - see + * machine__kernel_ip(). + */ + machine->kernel_start = 1ULL << 63; + if (map) { + err = map__load(map, machine->symbol_filter); + if (map->start) + machine->kernel_start = map->start; + } + return err; +} diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index c8c74a119398..2b651a7f5d0d 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -4,6 +4,7 @@ #include <sys/types.h> #include <linux/rbtree.h> #include "map.h" +#include "dso.h" #include "event.h" struct addr_location; @@ -20,19 +21,25 @@ union perf_event; extern const char *ref_reloc_sym_names[]; +struct vdso_info; + struct machine { struct rb_node rb_node; pid_t pid; u16 id_hdr_size; + bool comm_exec; char *root_dir; struct rb_root threads; struct list_head dead_threads; struct thread *last_match; - struct list_head user_dsos; - struct list_head kernel_dsos; + struct vdso_info *vdso_info; + struct dsos user_dsos; + struct dsos kernel_dsos; struct map_groups kmaps; struct map *vmlinux_maps[MAP__NR_TYPES]; + u64 kernel_start; symbol_filter_t symbol_filter; + pid_t *current_tid; }; static inline @@ -41,8 +48,26 @@ struct map *machine__kernel_map(struct machine *machine, enum map_type type) return machine->vmlinux_maps[type]; } +int machine__get_kernel_start(struct machine *machine); + +static inline u64 machine__kernel_start(struct machine *machine) +{ + if (!machine->kernel_start) + machine__get_kernel_start(machine); + return machine->kernel_start; +} + +static inline bool machine__kernel_ip(struct machine *machine, u64 ip) +{ + u64 kernel_start = machine__kernel_start(machine); + + return ip >= kernel_start; +} + struct thread *machine__find_thread(struct machine *machine, pid_t pid, pid_t tid); +struct comm *machine__thread_exec_comm(struct machine *machine, + struct thread *thread); int machine__process_comm_event(struct machine *machine, union perf_event *event, struct perf_sample *sample); @@ -84,6 +109,7 @@ char *machine__mmap_name(struct machine *machine, char *bf, size_t size); void machines__set_symbol_filter(struct machines *machines, symbol_filter_t symbol_filter); +void machines__set_comm_exec(struct machines *machines, bool comm_exec); struct machine *machine__new_host(void); int machine__init(struct machine *machine, const char *root_dir, pid_t pid); @@ -191,4 +217,8 @@ int machine__synthesize_threads(struct machine *machine, struct target *target, perf_event__process, data_mmap); } +pid_t machine__get_current_tid(struct machine *machine, int cpu); +int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid, + pid_t tid); + #endif /* __PERF_MACHINE_H */ diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 25c571f4cba6..2137c4596ec7 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -12,6 +12,8 @@ #include "vdso.h" #include "build-id.h" #include "util.h" +#include "debug.h" +#include "machine.h" #include <linux/string.h> const char *map_type__name[MAP__NR_TYPES] = { @@ -29,6 +31,7 @@ static inline int is_anon_memory(const char *filename) static inline int is_no_dso_memory(const char *filename) { return !strncmp(filename, "[stack", 6) || + !strncmp(filename, "/SYSV",5) || !strcmp(filename, "[heap]"); } @@ -136,10 +139,10 @@ void map__init(struct map *map, enum map_type type, map->erange_warned = false; } -struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, +struct map *map__new(struct machine *machine, u64 start, u64 len, u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino, u64 ino_gen, u32 prot, u32 flags, char *filename, - enum map_type type) + enum map_type type, struct thread *thread) { struct map *map = malloc(sizeof(*map)); @@ -172,9 +175,9 @@ struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, if (vdso) { pgoff = 0; - dso = vdso__dso_findnew(dsos__list); + dso = vdso__dso_findnew(machine, thread); } else - dso = __dsos__findnew(dsos__list, filename); + dso = __dsos__findnew(&machine->user_dsos, filename); if (dso == NULL) goto out_delete; @@ -454,6 +457,20 @@ void map_groups__exit(struct map_groups *mg) } } +bool map_groups__empty(struct map_groups *mg) +{ + int i; + + for (i = 0; i < MAP__NR_TYPES; ++i) { + if (maps__first(&mg->maps[i])) + return false; + if (!list_empty(&mg->removed_maps[i])) + return false; + } + + return true; +} + struct map_groups *map_groups__new(void) { struct map_groups *mg = malloc(sizeof(*mg)); @@ -539,7 +556,7 @@ struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter) { - if (ams->addr < ams->map->start || ams->addr > ams->map->end) { + if (ams->addr < ams->map->start || ams->addr >= ams->map->end) { if (ams->map->groups == NULL) return -1; ams->map = map_groups__find(ams->map->groups, ams->map->type, @@ -554,8 +571,8 @@ int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter) return ams->sym ? 0 : -1; } -size_t __map_groups__fprintf_maps(struct map_groups *mg, - enum map_type type, int verbose, FILE *fp) +size_t __map_groups__fprintf_maps(struct map_groups *mg, enum map_type type, + FILE *fp) { size_t printed = fprintf(fp, "%s:\n", map_type__name[type]); struct rb_node *nd; @@ -573,17 +590,16 @@ size_t __map_groups__fprintf_maps(struct map_groups *mg, return printed; } -size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp) +static size_t map_groups__fprintf_maps(struct map_groups *mg, FILE *fp) { size_t printed = 0, i; for (i = 0; i < MAP__NR_TYPES; ++i) - printed += __map_groups__fprintf_maps(mg, i, verbose, fp); + printed += __map_groups__fprintf_maps(mg, i, fp); return printed; } static size_t __map_groups__fprintf_removed_maps(struct map_groups *mg, - enum map_type type, - int verbose, FILE *fp) + enum map_type type, FILE *fp) { struct map *pos; size_t printed = 0; @@ -600,23 +616,23 @@ static size_t __map_groups__fprintf_removed_maps(struct map_groups *mg, } static size_t map_groups__fprintf_removed_maps(struct map_groups *mg, - int verbose, FILE *fp) + FILE *fp) { size_t printed = 0, i; for (i = 0; i < MAP__NR_TYPES; ++i) - printed += __map_groups__fprintf_removed_maps(mg, i, verbose, fp); + printed += __map_groups__fprintf_removed_maps(mg, i, fp); return printed; } -size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp) +size_t map_groups__fprintf(struct map_groups *mg, FILE *fp) { - size_t printed = map_groups__fprintf_maps(mg, verbose, fp); + size_t printed = map_groups__fprintf_maps(mg, fp); printed += fprintf(fp, "Removed maps:\n"); - return printed + map_groups__fprintf_removed_maps(mg, verbose, fp); + return printed + map_groups__fprintf_removed_maps(mg, fp); } int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, - int verbose, FILE *fp) + FILE *fp) { struct rb_root *root = &mg->maps[map->type]; struct rb_node *next = rb_first(root); @@ -648,7 +664,7 @@ int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, goto move_map; } - before->end = map->start - 1; + before->end = map->start; map_groups__insert(mg, before); if (verbose >= 2) map__fprintf(before, fp); @@ -662,7 +678,7 @@ int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, goto move_map; } - after->start = map->end + 1; + after->start = map->end; map_groups__insert(mg, after); if (verbose >= 2) map__fprintf(after, fp); @@ -736,7 +752,7 @@ struct map *maps__find(struct rb_root *maps, u64 ip) m = rb_entry(parent, struct map, rb_node); if (ip < m->start) p = &(*p)->rb_left; - else if (ip > m->end) + else if (ip >= m->end) p = &(*p)->rb_right; else return m; diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 7758c72522ef..2f83954af050 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -66,6 +66,7 @@ struct map_groups { struct map_groups *map_groups__new(void); void map_groups__delete(struct map_groups *mg); +bool map_groups__empty(struct map_groups *mg); static inline struct map_groups *map_groups__get(struct map_groups *mg) { @@ -103,6 +104,7 @@ u64 map__rip_2objdump(struct map *map, u64 rip); u64 map__objdump_2mem(struct map *map, u64 ip); struct symbol; +struct thread; /* map__for_each_symbol - iterate over the symbols in the given map * @@ -118,10 +120,10 @@ typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); void map__init(struct map *map, enum map_type type, u64 start, u64 end, u64 pgoff, struct dso *dso); -struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, +struct map *map__new(struct machine *machine, u64 start, u64 len, u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino, u64 ino_gen, u32 prot, u32 flags, - char *filename, enum map_type type); + char *filename, enum map_type type, struct thread *thread); struct map *map__new2(u64 start, struct dso *dso, enum map_type type); void map__delete(struct map *map); struct map *map__clone(struct map *map); @@ -141,8 +143,8 @@ void map__fixup_end(struct map *map); void map__reloc_vmlinux(struct map *map); -size_t __map_groups__fprintf_maps(struct map_groups *mg, - enum map_type type, int verbose, FILE *fp); +size_t __map_groups__fprintf_maps(struct map_groups *mg, enum map_type type, + FILE *fp); void maps__insert(struct rb_root *maps, struct map *map); void maps__remove(struct rb_root *maps, struct map *map); struct map *maps__find(struct rb_root *maps, u64 addr); @@ -152,8 +154,7 @@ void map_groups__init(struct map_groups *mg); void map_groups__exit(struct map_groups *mg); int map_groups__clone(struct map_groups *mg, struct map_groups *parent, enum map_type type); -size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp); -size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp); +size_t map_groups__fprintf(struct map_groups *mg, FILE *fp); int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, u64 addr); @@ -210,7 +211,7 @@ struct symbol *map_groups__find_function_by_name(struct map_groups *mg, } int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, - int verbose, FILE *fp); + FILE *fp); struct map *map_groups__find_by_name(struct map_groups *mg, enum map_type type, const char *name); diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c new file mode 100644 index 000000000000..fd4be94125fb --- /dev/null +++ b/tools/perf/util/ordered-events.c @@ -0,0 +1,286 @@ +#include <linux/list.h> +#include <linux/compiler.h> +#include <linux/string.h> +#include "ordered-events.h" +#include "evlist.h" +#include "session.h" +#include "asm/bug.h" +#include "debug.h" + +#define pr_N(n, fmt, ...) \ + eprintf(n, debug_ordered_events, fmt, ##__VA_ARGS__) + +#define pr(fmt, ...) pr_N(1, pr_fmt(fmt), ##__VA_ARGS__) + +static void queue_event(struct ordered_events *oe, struct ordered_event *new) +{ + struct ordered_event *last = oe->last; + u64 timestamp = new->timestamp; + struct list_head *p; + + ++oe->nr_events; + oe->last = new; + + pr_oe_time2(timestamp, "queue_event nr_events %u\n", oe->nr_events); + + if (!last) { + list_add(&new->list, &oe->events); + oe->max_timestamp = timestamp; + return; + } + + /* + * last event might point to some random place in the list as it's + * the last queued event. We expect that the new event is close to + * this. + */ + if (last->timestamp <= timestamp) { + while (last->timestamp <= timestamp) { + p = last->list.next; + if (p == &oe->events) { + list_add_tail(&new->list, &oe->events); + oe->max_timestamp = timestamp; + return; + } + last = list_entry(p, struct ordered_event, list); + } + list_add_tail(&new->list, &last->list); + } else { + while (last->timestamp > timestamp) { + p = last->list.prev; + if (p == &oe->events) { + list_add(&new->list, &oe->events); + return; + } + last = list_entry(p, struct ordered_event, list); + } + list_add(&new->list, &last->list); + } +} + +static union perf_event *__dup_event(struct ordered_events *oe, + union perf_event *event) +{ + union perf_event *new_event = NULL; + + if (oe->cur_alloc_size < oe->max_alloc_size) { + new_event = memdup(event, event->header.size); + if (new_event) + oe->cur_alloc_size += event->header.size; + } + + return new_event; +} + +static union perf_event *dup_event(struct ordered_events *oe, + union perf_event *event) +{ + return oe->copy_on_queue ? __dup_event(oe, event) : event; +} + +static void free_dup_event(struct ordered_events *oe, union perf_event *event) +{ + if (oe->copy_on_queue) { + oe->cur_alloc_size -= event->header.size; + free(event); + } +} + +#define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct ordered_event)) +static struct ordered_event *alloc_event(struct ordered_events *oe, + union perf_event *event) +{ + struct list_head *cache = &oe->cache; + struct ordered_event *new = NULL; + union perf_event *new_event; + + new_event = dup_event(oe, event); + if (!new_event) + return NULL; + + if (!list_empty(cache)) { + new = list_entry(cache->next, struct ordered_event, list); + list_del(&new->list); + } else if (oe->buffer) { + new = oe->buffer + oe->buffer_idx; + if (++oe->buffer_idx == MAX_SAMPLE_BUFFER) + oe->buffer = NULL; + } else if (oe->cur_alloc_size < oe->max_alloc_size) { + size_t size = MAX_SAMPLE_BUFFER * sizeof(*new); + + oe->buffer = malloc(size); + if (!oe->buffer) { + free_dup_event(oe, new_event); + return NULL; + } + + pr("alloc size %" PRIu64 "B (+%zu), max %" PRIu64 "B\n", + oe->cur_alloc_size, size, oe->max_alloc_size); + + oe->cur_alloc_size += size; + list_add(&oe->buffer->list, &oe->to_free); + + /* First entry is abused to maintain the to_free list. */ + oe->buffer_idx = 2; + new = oe->buffer + 1; + } else { + pr("allocation limit reached %" PRIu64 "B\n", oe->max_alloc_size); + } + + new->event = new_event; + return new; +} + +struct ordered_event * +ordered_events__new(struct ordered_events *oe, u64 timestamp, + union perf_event *event) +{ + struct ordered_event *new; + + new = alloc_event(oe, event); + if (new) { + new->timestamp = timestamp; + queue_event(oe, new); + } + + return new; +} + +void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event) +{ + list_move(&event->list, &oe->cache); + oe->nr_events--; + free_dup_event(oe, event->event); +} + +static int __ordered_events__flush(struct perf_session *s, + struct perf_tool *tool) +{ + struct ordered_events *oe = &s->ordered_events; + struct list_head *head = &oe->events; + struct ordered_event *tmp, *iter; + struct perf_sample sample; + u64 limit = oe->next_flush; + u64 last_ts = oe->last ? oe->last->timestamp : 0ULL; + bool show_progress = limit == ULLONG_MAX; + struct ui_progress prog; + int ret; + + if (!tool->ordered_events || !limit) + return 0; + + if (show_progress) + ui_progress__init(&prog, oe->nr_events, "Processing time ordered events..."); + + list_for_each_entry_safe(iter, tmp, head, list) { + if (session_done()) + return 0; + + if (iter->timestamp > limit) + break; + + ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); + if (ret) + pr_err("Can't parse sample, err = %d\n", ret); + else { + ret = perf_session__deliver_event(s, iter->event, &sample, tool, + iter->file_offset); + if (ret) + return ret; + } + + ordered_events__delete(oe, iter); + oe->last_flush = iter->timestamp; + + if (show_progress) + ui_progress__update(&prog, 1); + } + + if (list_empty(head)) + oe->last = NULL; + else if (last_ts <= limit) + oe->last = list_entry(head->prev, struct ordered_event, list); + + return 0; +} + +int ordered_events__flush(struct perf_session *s, struct perf_tool *tool, + enum oe_flush how) +{ + struct ordered_events *oe = &s->ordered_events; + static const char * const str[] = { + "NONE", + "FINAL", + "ROUND", + "HALF ", + }; + int err; + + switch (how) { + case OE_FLUSH__FINAL: + oe->next_flush = ULLONG_MAX; + break; + + case OE_FLUSH__HALF: + { + struct ordered_event *first, *last; + struct list_head *head = &oe->events; + + first = list_entry(head->next, struct ordered_event, list); + last = oe->last; + + /* Warn if we are called before any event got allocated. */ + if (WARN_ONCE(!last || list_empty(head), "empty queue")) + return 0; + + oe->next_flush = first->timestamp; + oe->next_flush += (last->timestamp - first->timestamp) / 2; + break; + } + + case OE_FLUSH__ROUND: + case OE_FLUSH__NONE: + default: + break; + }; + + pr_oe_time(oe->next_flush, "next_flush - ordered_events__flush PRE %s, nr_events %u\n", + str[how], oe->nr_events); + pr_oe_time(oe->max_timestamp, "max_timestamp\n"); + + err = __ordered_events__flush(s, tool); + + if (!err) { + if (how == OE_FLUSH__ROUND) + oe->next_flush = oe->max_timestamp; + + oe->last_flush_type = how; + } + + pr_oe_time(oe->next_flush, "next_flush - ordered_events__flush POST %s, nr_events %u\n", + str[how], oe->nr_events); + pr_oe_time(oe->last_flush, "last_flush\n"); + + return err; +} + +void ordered_events__init(struct ordered_events *oe) +{ + INIT_LIST_HEAD(&oe->events); + INIT_LIST_HEAD(&oe->cache); + INIT_LIST_HEAD(&oe->to_free); + oe->max_alloc_size = (u64) -1; + oe->cur_alloc_size = 0; +} + +void ordered_events__free(struct ordered_events *oe) +{ + while (!list_empty(&oe->to_free)) { + struct ordered_event *event; + + event = list_entry(oe->to_free.next, struct ordered_event, list); + list_del(&event->list); + free_dup_event(oe, event->event); + free(event); + } +} diff --git a/tools/perf/util/ordered-events.h b/tools/perf/util/ordered-events.h new file mode 100644 index 000000000000..7b8f9b011f38 --- /dev/null +++ b/tools/perf/util/ordered-events.h @@ -0,0 +1,59 @@ +#ifndef __ORDERED_EVENTS_H +#define __ORDERED_EVENTS_H + +#include <linux/types.h> +#include "tool.h" + +struct perf_session; + +struct ordered_event { + u64 timestamp; + u64 file_offset; + union perf_event *event; + struct list_head list; +}; + +enum oe_flush { + OE_FLUSH__NONE, + OE_FLUSH__FINAL, + OE_FLUSH__ROUND, + OE_FLUSH__HALF, +}; + +struct ordered_events { + u64 last_flush; + u64 next_flush; + u64 max_timestamp; + u64 max_alloc_size; + u64 cur_alloc_size; + struct list_head events; + struct list_head cache; + struct list_head to_free; + struct ordered_event *buffer; + struct ordered_event *last; + int buffer_idx; + unsigned int nr_events; + enum oe_flush last_flush_type; + bool copy_on_queue; +}; + +struct ordered_event *ordered_events__new(struct ordered_events *oe, u64 timestamp, + union perf_event *event); +void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event); +int ordered_events__flush(struct perf_session *s, struct perf_tool *tool, + enum oe_flush how); +void ordered_events__init(struct ordered_events *oe); +void ordered_events__free(struct ordered_events *oe); + +static inline +void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size) +{ + oe->max_alloc_size = size; +} + +static inline +void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy) +{ + oe->copy_on_queue = copy; +} +#endif /* __ORDERED_EVENTS_H */ diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 1e15df10a88c..c659a3ca1283 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -6,10 +6,11 @@ #include "parse-options.h" #include "parse-events.h" #include "exec_cmd.h" -#include "linux/string.h" +#include "string.h" #include "symbol.h" #include "cache.h" #include "header.h" +#include "debug.h" #include <api/fs/debugfs.h> #include "parse-events-bison.h" #define YY_EXTRA_TYPE int @@ -29,6 +30,15 @@ extern int parse_events_debug; #endif int parse_events_parse(void *data, void *scanner); +static struct perf_pmu_event_symbol *perf_pmu_events_list; +/* + * The variable indicates the number of supported pmu event symbols. + * 0 means not initialized and ready to init + * -1 means failed to init, don't try anymore + * >0 is the number of supported pmu event symbols + */ +static int perf_pmu_events_list_num; + static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { [PERF_COUNT_HW_CPU_CYCLES] = { .symbol = "cpu-cycles", @@ -633,18 +643,28 @@ int parse_events_add_pmu(struct list_head *list, int *idx, char *name, struct list_head *head_config) { struct perf_event_attr attr; + struct perf_pmu_info info; struct perf_pmu *pmu; struct perf_evsel *evsel; - const char *unit; - double scale; pmu = perf_pmu__find(name); if (!pmu) return -EINVAL; - memset(&attr, 0, sizeof(attr)); + if (pmu->default_config) { + memcpy(&attr, pmu->default_config, + sizeof(struct perf_event_attr)); + } else { + memset(&attr, 0, sizeof(attr)); + } - if (perf_pmu__check_alias(pmu, head_config, &unit, &scale)) + if (!head_config) { + attr.type = pmu->type; + evsel = __add_event(list, idx, &attr, NULL, pmu->cpus); + return evsel ? 0 : -ENOMEM; + } + + if (perf_pmu__check_alias(pmu, head_config, &info)) return -EINVAL; /* @@ -659,8 +679,8 @@ int parse_events_add_pmu(struct list_head *list, int *idx, evsel = __add_event(list, idx, &attr, pmu_event_name(head_config), pmu->cpus); if (evsel) { - evsel->unit = unit; - evsel->scale = scale; + evsel->unit = info.unit; + evsel->scale = info.scale; } return evsel ? 0 : -ENOMEM; @@ -852,30 +872,111 @@ int parse_events_name(struct list_head *list, char *name) return 0; } -static int parse_events__scanner(const char *str, void *data, int start_token); +static int +comp_pmu(const void *p1, const void *p2) +{ + struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1; + struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2; -static int parse_events_fixup(int ret, const char *str, void *data, - int start_token) + return strcmp(pmu1->symbol, pmu2->symbol); +} + +static void perf_pmu__parse_cleanup(void) { - char *o = strdup(str); - char *s = NULL; - char *t = o; - char *p; + if (perf_pmu_events_list_num > 0) { + struct perf_pmu_event_symbol *p; + int i; + + for (i = 0; i < perf_pmu_events_list_num; i++) { + p = perf_pmu_events_list + i; + free(p->symbol); + } + free(perf_pmu_events_list); + perf_pmu_events_list = NULL; + perf_pmu_events_list_num = 0; + } +} + +#define SET_SYMBOL(str, stype) \ +do { \ + p->symbol = str; \ + if (!p->symbol) \ + goto err; \ + p->type = stype; \ +} while (0) + +/* + * Read the pmu events list from sysfs + * Save it into perf_pmu_events_list + */ +static void perf_pmu__parse_init(void) +{ + + struct perf_pmu *pmu = NULL; + struct perf_pmu_alias *alias; int len = 0; - if (!o) - return ret; - while ((p = strsep(&t, ",")) != NULL) { - if (s) - str_append(&s, &len, ","); - str_append(&s, &len, "cpu/"); - str_append(&s, &len, p); - str_append(&s, &len, "/"); + pmu = perf_pmu__find("cpu"); + if ((pmu == NULL) || list_empty(&pmu->aliases)) { + perf_pmu_events_list_num = -1; + return; } - free(o); - if (!s) - return -ENOMEM; - return parse_events__scanner(s, data, start_token); + list_for_each_entry(alias, &pmu->aliases, list) { + if (strchr(alias->name, '-')) + len++; + len++; + } + perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len); + if (!perf_pmu_events_list) + return; + perf_pmu_events_list_num = len; + + len = 0; + list_for_each_entry(alias, &pmu->aliases, list) { + struct perf_pmu_event_symbol *p = perf_pmu_events_list + len; + char *tmp = strchr(alias->name, '-'); + + if (tmp != NULL) { + SET_SYMBOL(strndup(alias->name, tmp - alias->name), + PMU_EVENT_SYMBOL_PREFIX); + p++; + SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX); + len += 2; + } else { + SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL); + len++; + } + } + qsort(perf_pmu_events_list, len, + sizeof(struct perf_pmu_event_symbol), comp_pmu); + + return; +err: + perf_pmu__parse_cleanup(); +} + +enum perf_pmu_event_symbol_type +perf_pmu__parse_check(const char *name) +{ + struct perf_pmu_event_symbol p, *r; + + /* scan kernel pmu events from sysfs if needed */ + if (perf_pmu_events_list_num == 0) + perf_pmu__parse_init(); + /* + * name "cpu" could be prefix of cpu-cycles or cpu// events. + * cpu-cycles has been handled by hardcode. + * So it must be cpu// events, not kernel pmu event. + */ + if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu")) + return PMU_EVENT_SYMBOL_ERR; + + p.symbol = strdup(name); + r = bsearch(&p, perf_pmu_events_list, + (size_t) perf_pmu_events_list_num, + sizeof(struct perf_pmu_event_symbol), comp_pmu); + free(p.symbol); + return r ? r->type : PMU_EVENT_SYMBOL_ERR; } static int parse_events__scanner(const char *str, void *data, int start_token) @@ -898,8 +999,6 @@ static int parse_events__scanner(const char *str, void *data, int start_token) parse_events__flush_buffer(buffer, scanner); parse_events__delete_buffer(buffer, scanner); parse_events_lex_destroy(scanner); - if (ret && !strchr(str, '/')) - ret = parse_events_fixup(ret, str, data, start_token); return ret; } @@ -934,6 +1033,7 @@ int parse_events(struct perf_evlist *evlist, const char *str) int ret; ret = parse_events__scanner(str, &data, PE_START_EVENTS); + perf_pmu__parse_cleanup(); if (!ret) { int entries = data.idx - evlist->nr_entries; perf_evlist__splice_list_tail(evlist, &data.list, entries); @@ -973,7 +1073,7 @@ int parse_filter(const struct option *opt, const char *str, if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) { fprintf(stderr, - "-F option should follow a -e tracepoint option\n"); + "--filter option should follow a -e tracepoint option\n"); return -1; } @@ -1006,9 +1106,11 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob, struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; char evt_path[MAXPATHLEN]; char dir_path[MAXPATHLEN]; + char sbuf[STRERR_BUFSIZE]; if (debugfs_valid_mountpoint(tracing_events_path)) { - printf(" [ Tracepoints not available: %s ]\n", strerror(errno)); + printf(" [ Tracepoints not available: %s ]\n", + strerror_r(errno, sbuf, sizeof(sbuf))); return; } diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index df094b4ed5ed..db2cf78ff0f3 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -35,6 +35,18 @@ extern int parse_filter(const struct option *opt, const char *str, int unset); #define EVENTS_HELP_MAX (128*1024) +enum perf_pmu_event_symbol_type { + PMU_EVENT_SYMBOL_ERR, /* not a PMU EVENT */ + PMU_EVENT_SYMBOL, /* normal style PMU event */ + PMU_EVENT_SYMBOL_PREFIX, /* prefix of pre-suf style event */ + PMU_EVENT_SYMBOL_SUFFIX, /* suffix of pre-suf style event */ +}; + +struct perf_pmu_event_symbol { + char *symbol; + enum perf_pmu_event_symbol_type type; +}; + enum { PARSE_EVENTS__TERM_TYPE_NUM, PARSE_EVENTS__TERM_TYPE_STR, @@ -95,6 +107,8 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx, void *ptr, char *type); int parse_events_add_pmu(struct list_head *list, int *idx, char *pmu , struct list_head *head_config); +enum perf_pmu_event_symbol_type +perf_pmu__parse_check(const char *name); void parse_events__set_leader(char *name, struct list_head *list); void parse_events_update_lists(struct list_head *list_event, struct list_head *list_all); diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 343299575b30..906630bbf8eb 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -51,6 +51,24 @@ static int str(yyscan_t scanner, int token) return token; } +static int pmu_str_check(yyscan_t scanner) +{ + YYSTYPE *yylval = parse_events_get_lval(scanner); + char *text = parse_events_get_text(scanner); + + yylval->str = strdup(text); + switch (perf_pmu__parse_check(text)) { + case PMU_EVENT_SYMBOL_PREFIX: + return PE_PMU_EVENT_PRE; + case PMU_EVENT_SYMBOL_SUFFIX: + return PE_PMU_EVENT_SUF; + case PMU_EVENT_SYMBOL: + return PE_KERNEL_PMU_EVENT; + default: + return PE_NAME; + } +} + static int sym(yyscan_t scanner, int type, int config) { YYSTYPE *yylval = parse_events_get_lval(scanner); @@ -178,6 +196,16 @@ alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_AL emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); } dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); } + /* + * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately. + * Because the prefix cycles is mixed up with cpu-cycles. + * loads and stores are mixed up with cache event + */ +cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); } +cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); } +mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); } +mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); } + L1-dcache|l1-d|l1d|L1-data | L1-icache|l1-i|l1i|L1-instruction | LLC|L2 | @@ -199,7 +227,7 @@ r{num_raw_hex} { return raw(yyscanner); } {num_hex} { return value(yyscanner, 16); } {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); } -{name} { return str(yyscanner, PE_NAME); } +{name} { return pmu_str_check(yyscanner); } "/" { BEGIN(config); return '/'; } - { return '-'; } , { BEGIN(event); return ','; } diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index 0bc87ba46bf3..93c4c9fbc922 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -47,6 +47,7 @@ static inc_group_count(struct list_head *list, %token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT %token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP %token PE_ERROR +%token PE_PMU_EVENT_PRE PE_PMU_EVENT_SUF PE_KERNEL_PMU_EVENT %type <num> PE_VALUE %type <num> PE_VALUE_SYM_HW %type <num> PE_VALUE_SYM_SW @@ -58,6 +59,7 @@ static inc_group_count(struct list_head *list, %type <str> PE_MODIFIER_EVENT %type <str> PE_MODIFIER_BP %type <str> PE_EVENT_NAME +%type <str> PE_PMU_EVENT_PRE PE_PMU_EVENT_SUF PE_KERNEL_PMU_EVENT %type <num> value_sym %type <head> event_config %type <term> event_term @@ -210,6 +212,54 @@ PE_NAME '/' event_config '/' parse_events__free_terms($3); $$ = list; } +| +PE_NAME '/' '/' +{ + struct parse_events_evlist *data = _data; + struct list_head *list; + + ALLOC_LIST(list); + ABORT_ON(parse_events_add_pmu(list, &data->idx, $1, NULL)); + $$ = list; +} +| +PE_KERNEL_PMU_EVENT sep_dc +{ + struct parse_events_evlist *data = _data; + struct list_head *head; + struct parse_events_term *term; + struct list_head *list; + + ALLOC_LIST(head); + ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, + $1, 1)); + list_add_tail(&term->list, head); + + ALLOC_LIST(list); + ABORT_ON(parse_events_add_pmu(list, &data->idx, "cpu", head)); + parse_events__free_terms(head); + $$ = list; +} +| +PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc +{ + struct parse_events_evlist *data = _data; + struct list_head *head; + struct parse_events_term *term; + struct list_head *list; + char pmu_name[128]; + snprintf(&pmu_name, 128, "%s-%s", $1, $3); + + ALLOC_LIST(head); + ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, + &pmu_name, 1)); + list_add_tail(&term->list, head); + + ALLOC_LIST(list); + ABORT_ON(parse_events_add_pmu(list, &data->idx, "cpu", head)); + parse_events__free_terms(head); + $$ = list; +} value_sym: PE_VALUE_SYM_HW diff --git a/tools/perf/util/parse-options.h b/tools/perf/util/parse-options.h index d8dac8ac5f37..b59ba858e73d 100644 --- a/tools/perf/util/parse-options.h +++ b/tools/perf/util/parse-options.h @@ -98,6 +98,7 @@ struct option { parse_opt_cb *callback; intptr_t defval; bool *set; + void *data; }; #define check_vtype(v, type) ( BUILD_BUG_ON_ZERO(!__builtin_types_compatible_p(typeof(v), type)) + v ) @@ -131,6 +132,10 @@ struct option { { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l),\ .value = (v), (a), .help = (h), .callback = (f), .defval = (intptr_t)d,\ .flags = PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NOARG} +#define OPT_CALLBACK_OPTARG(s, l, v, d, a, h, f) \ + { .type = OPTION_CALLBACK, .short_name = (s), .long_name = (l), \ + .value = (v), (a), .help = (h), .callback = (f), \ + .flags = PARSE_OPT_OPTARG, .data = (d) } /* parse_options() will filter out the processed options and leave the * non-option argments in argv[]. diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 7a811eb61f75..e243ad962a4d 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -2,6 +2,8 @@ #include <sys/types.h> #include <unistd.h> #include <stdio.h> +#include <stdbool.h> +#include <stdarg.h> #include <dirent.h> #include <api/fs/fs.h> #include <locale.h> @@ -10,16 +12,6 @@ #include "parse-events.h" #include "cpumap.h" -#define UNIT_MAX_LEN 31 /* max length for event unit name */ - -struct perf_pmu_alias { - char *name; - struct list_head terms; - struct list_head list; - char unit[UNIT_MAX_LEN+1]; - double scale; -}; - struct perf_pmu_format { char *name; int value; @@ -208,6 +200,19 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI return 0; } +static inline bool pmu_alias_info_file(char *name) +{ + size_t len; + + len = strlen(name); + if (len > 5 && !strcmp(name + len - 5, ".unit")) + return true; + if (len > 6 && !strcmp(name + len - 6, ".scale")) + return true; + + return false; +} + /* * Process all the sysfs attributes located under the directory * specified in 'dir' parameter. @@ -216,7 +221,6 @@ static int pmu_aliases_parse(char *dir, struct list_head *head) { struct dirent *evt_ent; DIR *event_dir; - size_t len; int ret = 0; event_dir = opendir(dir); @@ -232,13 +236,9 @@ static int pmu_aliases_parse(char *dir, struct list_head *head) continue; /* - * skip .unit and .scale info files - * parsed in perf_pmu__new_alias() + * skip info files parsed in perf_pmu__new_alias() */ - len = strlen(name); - if (len > 5 && !strcmp(name + len - 5, ".unit")) - continue; - if (len > 6 && !strcmp(name + len - 6, ".scale")) + if (pmu_alias_info_file(name)) continue; snprintf(path, PATH_MAX, "%s/%s", dir, name); @@ -387,6 +387,12 @@ static struct cpu_map *pmu_cpumask(const char *name) return cpus; } +struct perf_event_attr *__attribute__((weak)) +perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused) +{ + return NULL; +} + static struct perf_pmu *pmu_lookup(const char *name) { struct perf_pmu *pmu; @@ -421,6 +427,9 @@ static struct perf_pmu *pmu_lookup(const char *name) pmu->name = strdup(name); pmu->type = type; list_add_tail(&pmu->list, &pmus); + + pmu->default_config = perf_pmu__get_default_config(pmu); + return pmu; } @@ -479,28 +488,24 @@ pmu_find_format(struct list_head *formats, char *name) } /* - * Returns value based on the format definition (format parameter) + * Sets value based on the format definition (format parameter) * and unformated value (value parameter). - * - * TODO maybe optimize a little ;) */ -static __u64 pmu_format_value(unsigned long *format, __u64 value) +static void pmu_format_value(unsigned long *format, __u64 value, __u64 *v, + bool zero) { unsigned long fbit, vbit; - __u64 v = 0; for (fbit = 0, vbit = 0; fbit < PERF_PMU_FORMAT_BITS; fbit++) { if (!test_bit(fbit, format)) continue; - if (!(value & (1llu << vbit++))) - continue; - - v |= (1llu << fbit); + if (value & (1llu << vbit++)) + *v |= (1llu << fbit); + else if (zero) + *v &= ~(1llu << fbit); } - - return v; } /* @@ -509,7 +514,8 @@ static __u64 pmu_format_value(unsigned long *format, __u64 value) */ static int pmu_config_term(struct list_head *formats, struct perf_event_attr *attr, - struct parse_events_term *term) + struct parse_events_term *term, + bool zero) { struct perf_pmu_format *format; __u64 *vp; @@ -548,18 +554,19 @@ static int pmu_config_term(struct list_head *formats, * non-hardcoded terms, here's the place to translate * them into value. */ - *vp |= pmu_format_value(format->bits, term->val.num); + pmu_format_value(format->bits, term->val.num, vp, zero); return 0; } int perf_pmu__config_terms(struct list_head *formats, struct perf_event_attr *attr, - struct list_head *head_terms) + struct list_head *head_terms, + bool zero) { struct parse_events_term *term; list_for_each_entry(term, head_terms, list) - if (pmu_config_term(formats, attr, term)) + if (pmu_config_term(formats, attr, term, zero)) return -EINVAL; return 0; @@ -573,8 +580,10 @@ int perf_pmu__config_terms(struct list_head *formats, int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr, struct list_head *head_terms) { + bool zero = !!pmu->default_config; + attr->type = pmu->type; - return perf_pmu__config_terms(&pmu->format, attr, head_terms); + return perf_pmu__config_terms(&pmu->format, attr, head_terms, zero); } static struct perf_pmu_alias *pmu_find_alias(struct perf_pmu *pmu, @@ -634,7 +643,7 @@ static int check_unit_scale(struct perf_pmu_alias *alias, * defined for the alias */ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, - const char **unit, double *scale) + struct perf_pmu_info *info) { struct parse_events_term *term, *h; struct perf_pmu_alias *alias; @@ -644,8 +653,8 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, * Mark unit and scale as not set * (different from default values, see below) */ - *unit = NULL; - *scale = 0.0; + info->unit = NULL; + info->scale = 0.0; list_for_each_entry_safe(term, h, head_terms, list) { alias = pmu_find_alias(pmu, term); @@ -655,7 +664,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, if (ret) return ret; - ret = check_unit_scale(alias, unit, scale); + ret = check_unit_scale(alias, &info->unit, &info->scale); if (ret) return ret; @@ -668,11 +677,11 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, * set defaults as for evsel * unit cannot left to NULL */ - if (*unit == NULL) - *unit = ""; + if (info->unit == NULL) + info->unit = ""; - if (*scale == 0.0) - *scale = 1.0; + if (info->scale == 0.0) + info->scale = 1.0; return 0; } @@ -794,3 +803,39 @@ bool pmu_have_event(const char *pname, const char *name) } return false; } + +static FILE *perf_pmu__open_file(struct perf_pmu *pmu, const char *name) +{ + struct stat st; + char path[PATH_MAX]; + const char *sysfs; + + sysfs = sysfs__mountpoint(); + if (!sysfs) + return NULL; + + snprintf(path, PATH_MAX, + "%s" EVENT_SOURCE_DEVICE_PATH "%s/%s", sysfs, pmu->name, name); + + if (stat(path, &st) < 0) + return NULL; + + return fopen(path, "r"); +} + +int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, + ...) +{ + va_list args; + FILE *file; + int ret = EOF; + + va_start(args, fmt); + file = perf_pmu__open_file(pmu, name); + if (file) { + ret = vfscanf(file, fmt, args); + fclose(file); + } + va_end(args); + return ret; +} diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index c14a543ce1f3..fe9dfbee8eed 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -13,13 +13,31 @@ enum { #define PERF_PMU_FORMAT_BITS 64 +struct perf_event_attr; + struct perf_pmu { char *name; __u32 type; + struct perf_event_attr *default_config; struct cpu_map *cpus; - struct list_head format; - struct list_head aliases; - struct list_head list; + struct list_head format; /* HEAD struct perf_pmu_format -> list */ + struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */ + struct list_head list; /* ELEM */ +}; + +struct perf_pmu_info { + const char *unit; + double scale; +}; + +#define UNIT_MAX_LEN 31 /* max length for event unit name */ + +struct perf_pmu_alias { + char *name; + struct list_head terms; /* HEAD struct parse_events_term -> list */ + struct list_head list; /* ELEM */ + char unit[UNIT_MAX_LEN+1]; + double scale; }; struct perf_pmu *perf_pmu__find(const char *name); @@ -27,9 +45,10 @@ int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr, struct list_head *head_terms); int perf_pmu__config_terms(struct list_head *formats, struct perf_event_attr *attr, - struct list_head *head_terms); + struct list_head *head_terms, + bool zero); int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, - const char **unit, double *scale); + struct perf_pmu_info *info); struct list_head *perf_pmu__alias(struct perf_pmu *pmu, struct list_head *head_terms); int perf_pmu_wrap(void); @@ -45,5 +64,11 @@ struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu); void print_pmu_events(const char *event_glob, bool name_only); bool pmu_have_event(const char *pname, const char *name); +int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, + ...) __attribute__((format(scanf, 3, 4))); + int perf_pmu__test(void); + +struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu); + #endif /* __PMU_H */ diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 9a0a1839a377..c150ca4343eb 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -79,7 +79,7 @@ static int init_symbol_maps(bool user_only) int ret; symbol_conf.sort_by_name = true; - ret = symbol__init(); + ret = symbol__init(NULL); if (ret < 0) { pr_debug("Failed to init symbol map.\n"); goto out; @@ -184,7 +184,8 @@ static struct dso *kernel_get_module_dso(const char *module) const char *vmlinux_name; if (module) { - list_for_each_entry(dso, &host_machine->kernel_dsos, node) { + list_for_each_entry(dso, &host_machine->kernel_dsos.head, + node) { if (strncmp(dso->short_name + 1, module, dso->short_name_len - 2) == 0) goto found; @@ -258,21 +259,33 @@ static void clear_probe_trace_events(struct probe_trace_event *tevs, int ntevs) #ifdef HAVE_DWARF_SUPPORT /* Open new debuginfo of given module */ -static struct debuginfo *open_debuginfo(const char *module) +static struct debuginfo *open_debuginfo(const char *module, bool silent) { const char *path = module; + struct debuginfo *ret; if (!module || !strchr(module, '/')) { path = kernel_get_module_path(module); if (!path) { - pr_err("Failed to find path of %s module.\n", - module ?: "kernel"); + if (!silent) + pr_err("Failed to find path of %s module.\n", + module ?: "kernel"); return NULL; } } - return debuginfo__new(path); + ret = debuginfo__new(path); + if (!ret && !silent) { + pr_warning("The %s file has no debug information.\n", path); + if (!module || !strtailcmp(path, ".ko")) + pr_warning("Rebuild with CONFIG_DEBUG_INFO=y, "); + else + pr_warning("Rebuild with -g, "); + pr_warning("or install an appropriate debuginfo package.\n"); + } + return ret; } + static int get_text_start_address(const char *exec, unsigned long *address) { Elf *elf; @@ -333,15 +346,13 @@ static int find_perf_probe_point_from_dwarf(struct probe_trace_point *tp, pr_debug("try to find information at %" PRIx64 " in %s\n", addr, tp->module ? : "kernel"); - dinfo = open_debuginfo(tp->module); + dinfo = open_debuginfo(tp->module, verbose == 0); if (dinfo) { ret = debuginfo__find_probe_point(dinfo, (unsigned long)addr, pp); debuginfo__delete(dinfo); - } else { - pr_debug("Failed to open debuginfo at 0x%" PRIx64 "\n", addr); + } else ret = -ENOENT; - } if (ret > 0) { pp->retprobe = tp->retprobe; @@ -457,13 +468,11 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev, struct debuginfo *dinfo; int ntevs, ret = 0; - dinfo = open_debuginfo(target); + dinfo = open_debuginfo(target, !need_dwarf); if (!dinfo) { - if (need_dwarf) { - pr_warning("Failed to open debuginfo file.\n"); + if (need_dwarf) return -ENOENT; - } pr_debug("Could not open debuginfo. Try to use symbols.\n"); return 0; } @@ -565,7 +574,7 @@ static int get_real_path(const char *raw_path, const char *comp_dir, static int __show_one_line(FILE *fp, int l, bool skip, bool show_num) { - char buf[LINEBUF_SIZE]; + char buf[LINEBUF_SIZE], sbuf[STRERR_BUFSIZE]; const char *color = show_num ? "" : PERF_COLOR_BLUE; const char *prefix = NULL; @@ -585,7 +594,8 @@ static int __show_one_line(FILE *fp, int l, bool skip, bool show_num) return 1; error: if (ferror(fp)) { - pr_warning("File read error: %s\n", strerror(errno)); + pr_warning("File read error: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); return -1; } return 0; @@ -618,13 +628,12 @@ static int __show_line_range(struct line_range *lr, const char *module) FILE *fp; int ret; char *tmp; + char sbuf[STRERR_BUFSIZE]; /* Search a line range */ - dinfo = open_debuginfo(module); - if (!dinfo) { - pr_warning("Failed to open debuginfo file.\n"); + dinfo = open_debuginfo(module, false); + if (!dinfo) return -ENOENT; - } ret = debuginfo__find_line_range(dinfo, lr); debuginfo__delete(dinfo); @@ -656,7 +665,7 @@ static int __show_line_range(struct line_range *lr, const char *module) fp = fopen(lr->path, "r"); if (fp == NULL) { pr_warning("Failed to open %s: %s\n", lr->path, - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); return -errno; } /* Skip to starting line number */ @@ -689,11 +698,11 @@ end: return ret; } -int show_line_range(struct line_range *lr, const char *module) +int show_line_range(struct line_range *lr, const char *module, bool user) { int ret; - ret = init_symbol_maps(false); + ret = init_symbol_maps(user); if (ret < 0) return ret; ret = __show_line_range(lr, module); @@ -768,13 +777,12 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs, int i, ret = 0; struct debuginfo *dinfo; - ret = init_symbol_maps(false); + ret = init_symbol_maps(pevs->uprobes); if (ret < 0) return ret; - dinfo = open_debuginfo(module); + dinfo = open_debuginfo(module, false); if (!dinfo) { - pr_warning("Failed to open debuginfo file.\n"); ret = -ENOENT; goto out; } @@ -815,7 +823,8 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev, } int show_line_range(struct line_range *lr __maybe_unused, - const char *module __maybe_unused) + const char *module __maybe_unused, + bool user __maybe_unused) { pr_warning("Debuginfo-analysis is not supported.\n"); return -ENOSYS; @@ -1405,8 +1414,7 @@ int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf, size_t len) return tmp - buf; error: - pr_debug("Failed to synthesize perf probe argument: %s\n", - strerror(-ret)); + pr_debug("Failed to synthesize perf probe argument: %d\n", ret); return ret; } @@ -1455,8 +1463,7 @@ static char *synthesize_perf_probe_point(struct perf_probe_point *pp) return buf; error: - pr_debug("Failed to synthesize perf probe point: %s\n", - strerror(-ret)); + pr_debug("Failed to synthesize perf probe point: %d\n", ret); free(buf); return NULL; } @@ -1780,10 +1787,11 @@ static void clear_probe_trace_event(struct probe_trace_event *tev) memset(tev, 0, sizeof(*tev)); } -static void print_warn_msg(const char *file, bool is_kprobe) +static void print_open_warning(int err, bool is_kprobe) { + char sbuf[STRERR_BUFSIZE]; - if (errno == ENOENT) { + if (err == -ENOENT) { const char *config; if (!is_kprobe) @@ -1791,25 +1799,43 @@ static void print_warn_msg(const char *file, bool is_kprobe) else config = "CONFIG_KPROBE_EVENTS"; - pr_warning("%s file does not exist - please rebuild kernel" - " with %s.\n", file, config); - } else - pr_warning("Failed to open %s file: %s\n", file, - strerror(errno)); + pr_warning("%cprobe_events file does not exist" + " - please rebuild kernel with %s.\n", + is_kprobe ? 'k' : 'u', config); + } else if (err == -ENOTSUP) + pr_warning("Debugfs is not mounted.\n"); + else + pr_warning("Failed to open %cprobe_events: %s\n", + is_kprobe ? 'k' : 'u', + strerror_r(-err, sbuf, sizeof(sbuf))); +} + +static void print_both_open_warning(int kerr, int uerr) +{ + /* Both kprobes and uprobes are disabled, warn it. */ + if (kerr == -ENOTSUP && uerr == -ENOTSUP) + pr_warning("Debugfs is not mounted.\n"); + else if (kerr == -ENOENT && uerr == -ENOENT) + pr_warning("Please rebuild kernel with CONFIG_KPROBE_EVENTS " + "or/and CONFIG_UPROBE_EVENTS.\n"); + else { + char sbuf[STRERR_BUFSIZE]; + pr_warning("Failed to open kprobe events: %s.\n", + strerror_r(-kerr, sbuf, sizeof(sbuf))); + pr_warning("Failed to open uprobe events: %s.\n", + strerror_r(-uerr, sbuf, sizeof(sbuf))); + } } -static int open_probe_events(const char *trace_file, bool readwrite, - bool is_kprobe) +static int open_probe_events(const char *trace_file, bool readwrite) { char buf[PATH_MAX]; const char *__debugfs; int ret; __debugfs = debugfs_find_mountpoint(); - if (__debugfs == NULL) { - pr_warning("Debugfs is not mounted.\n"); - return -ENOENT; - } + if (__debugfs == NULL) + return -ENOTSUP; ret = e_snprintf(buf, PATH_MAX, "%s/%s", __debugfs, trace_file); if (ret >= 0) { @@ -1820,19 +1846,19 @@ static int open_probe_events(const char *trace_file, bool readwrite, ret = open(buf, O_RDONLY, 0); if (ret < 0) - print_warn_msg(buf, is_kprobe); + ret = -errno; } return ret; } static int open_kprobe_events(bool readwrite) { - return open_probe_events("tracing/kprobe_events", readwrite, true); + return open_probe_events("tracing/kprobe_events", readwrite); } static int open_uprobe_events(bool readwrite) { - return open_probe_events("tracing/uprobe_events", readwrite, false); + return open_probe_events("tracing/uprobe_events", readwrite); } /* Get raw string list of current kprobe_events or uprobe_events */ @@ -1857,7 +1883,7 @@ static struct strlist *get_probe_trace_command_rawlist(int fd) p[idx] = '\0'; ret = strlist__add(sl, buf); if (ret < 0) { - pr_debug("strlist__add failed: %s\n", strerror(-ret)); + pr_debug("strlist__add failed (%d)\n", ret); strlist__delete(sl); return NULL; } @@ -1916,7 +1942,7 @@ static int __show_perf_probe_events(int fd, bool is_kprobe) rawlist = get_probe_trace_command_rawlist(fd); if (!rawlist) - return -ENOENT; + return -ENOMEM; strlist__for_each(ent, rawlist) { ret = parse_probe_trace_command(ent->s, &tev); @@ -1940,27 +1966,34 @@ static int __show_perf_probe_events(int fd, bool is_kprobe) /* List up current perf-probe events */ int show_perf_probe_events(void) { - int fd, ret; + int kp_fd, up_fd, ret; setup_pager(); - fd = open_kprobe_events(false); - - if (fd < 0) - return fd; ret = init_symbol_maps(false); if (ret < 0) return ret; - ret = __show_perf_probe_events(fd, true); - close(fd); + kp_fd = open_kprobe_events(false); + if (kp_fd >= 0) { + ret = __show_perf_probe_events(kp_fd, true); + close(kp_fd); + if (ret < 0) + goto out; + } - fd = open_uprobe_events(false); - if (fd >= 0) { - ret = __show_perf_probe_events(fd, false); - close(fd); + up_fd = open_uprobe_events(false); + if (kp_fd < 0 && up_fd < 0) { + print_both_open_warning(kp_fd, up_fd); + ret = kp_fd; + goto out; } + if (up_fd >= 0) { + ret = __show_perf_probe_events(up_fd, false); + close(up_fd); + } +out: exit_symbol_maps(); return ret; } @@ -1976,6 +2009,8 @@ static struct strlist *get_probe_trace_event_names(int fd, bool include_group) memset(&tev, 0, sizeof(tev)); rawlist = get_probe_trace_command_rawlist(fd); + if (!rawlist) + return NULL; sl = strlist__new(true, NULL); strlist__for_each(ent, rawlist) { ret = parse_probe_trace_command(ent->s, &tev); @@ -2005,6 +2040,7 @@ static int write_probe_trace_event(int fd, struct probe_trace_event *tev) { int ret = 0; char *buf = synthesize_probe_trace_command(tev); + char sbuf[STRERR_BUFSIZE]; if (!buf) { pr_debug("Failed to synthesize probe trace event.\n"); @@ -2016,7 +2052,7 @@ static int write_probe_trace_event(int fd, struct probe_trace_event *tev) ret = write(fd, buf, strlen(buf)); if (ret <= 0) pr_warning("Failed to write event: %s\n", - strerror(errno)); + strerror_r(errno, sbuf, sizeof(sbuf))); } free(buf); return ret; @@ -2030,7 +2066,7 @@ static int get_new_event_name(char *buf, size_t len, const char *base, /* Try no suffix */ ret = e_snprintf(buf, len, "%s", base); if (ret < 0) { - pr_debug("snprintf() failed: %s\n", strerror(-ret)); + pr_debug("snprintf() failed: %d\n", ret); return ret; } if (!strlist__has_entry(namelist, buf)) @@ -2046,7 +2082,7 @@ static int get_new_event_name(char *buf, size_t len, const char *base, for (i = 1; i < MAX_EVENT_INDEX; i++) { ret = e_snprintf(buf, len, "%s_%d", base, i); if (ret < 0) { - pr_debug("snprintf() failed: %s\n", strerror(-ret)); + pr_debug("snprintf() failed: %d\n", ret); return ret; } if (!strlist__has_entry(namelist, buf)) @@ -2075,8 +2111,11 @@ static int __add_probe_trace_events(struct perf_probe_event *pev, else fd = open_kprobe_events(true); - if (fd < 0) + if (fd < 0) { + print_open_warning(fd, !pev->uprobes); return fd; + } + /* Get current event names */ namelist = get_probe_trace_event_names(fd, false); if (!namelist) { @@ -2408,7 +2447,8 @@ static int __del_trace_probe_event(int fd, struct str_node *ent) printf("Removed event: %s\n", ent->s); return 0; error: - pr_warning("Failed to delete event: %s\n", strerror(-ret)); + pr_warning("Failed to delete event: %s\n", + strerror_r(-ret, buf, sizeof(buf))); return ret; } @@ -2449,15 +2489,18 @@ int del_perf_probe_events(struct strlist *dellist) /* Get current event names */ kfd = open_kprobe_events(true); - if (kfd < 0) - return kfd; + if (kfd >= 0) + namelist = get_probe_trace_event_names(kfd, true); - namelist = get_probe_trace_event_names(kfd, true); ufd = open_uprobe_events(true); - if (ufd >= 0) unamelist = get_probe_trace_event_names(ufd, true); + if (kfd < 0 && ufd < 0) { + print_both_open_warning(kfd, ufd); + goto error; + } + if (namelist == NULL && unamelist == NULL) goto error; diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h index 776c9347a3b6..e01e9943139f 100644 --- a/tools/perf/util/probe-event.h +++ b/tools/perf/util/probe-event.h @@ -128,7 +128,8 @@ extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs, bool force_add); extern int del_perf_probe_events(struct strlist *dellist); extern int show_perf_probe_events(void); -extern int show_line_range(struct line_range *lr, const char *module); +extern int show_line_range(struct line_range *lr, const char *module, + bool user); extern int show_available_vars(struct perf_probe_event *pevs, int npevs, int max_probe_points, const char *module, struct strfilter *filter, bool externs); diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 98e304766416..c7918f83b300 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -26,7 +26,6 @@ #include <errno.h> #include <stdio.h> #include <unistd.h> -#include <getopt.h> #include <stdlib.h> #include <string.h> #include <stdarg.h> @@ -282,6 +281,7 @@ static int convert_variable_type(Dwarf_Die *vr_die, struct probe_trace_arg_ref **ref_ptr = &tvar->ref; Dwarf_Die type; char buf[16]; + char sbuf[STRERR_BUFSIZE]; int bsize, boffs, total; int ret; @@ -368,7 +368,7 @@ formatted: if (ret >= 16) ret = -E2BIG; pr_warning("Failed to convert variable type: %s\n", - strerror(-ret)); + strerror_r(-ret, sbuf, sizeof(sbuf))); return ret; } tvar->type = strdup(buf); @@ -609,14 +609,18 @@ static int convert_to_trace_point(Dwarf_Die *sp_die, Dwfl_Module *mod, return -EINVAL; } - /* Get an appropriate symbol from symtab */ - symbol = dwfl_module_addrsym(mod, paddr, &sym, NULL); + symbol = dwarf_diename(sp_die); if (!symbol) { - pr_warning("Failed to find symbol at 0x%lx\n", - (unsigned long)paddr); - return -ENOENT; + /* Try to get the symbol name from symtab */ + symbol = dwfl_module_addrsym(mod, paddr, &sym, NULL); + if (!symbol) { + pr_warning("Failed to find symbol at 0x%lx\n", + (unsigned long)paddr); + return -ENOENT; + } + eaddr = sym.st_value; } - tp->offset = (unsigned long)(paddr - sym.st_value); + tp->offset = (unsigned long)(paddr - eaddr); tp->address = (unsigned long)paddr; tp->symbol = strdup(symbol); if (!tp->symbol) @@ -780,10 +784,12 @@ static int find_lazy_match_lines(struct intlist *list, size_t line_len; ssize_t len; int count = 0, linenum = 1; + char sbuf[STRERR_BUFSIZE]; fp = fopen(fname, "r"); if (!fp) { - pr_warning("Failed to open %s: %s\n", fname, strerror(errno)); + pr_warning("Failed to open %s: %s\n", fname, + strerror_r(errno, sbuf, sizeof(sbuf))); return -errno; } diff --git a/tools/perf/util/pstack.c b/tools/perf/util/pstack.c index daa17aeb6c63..a126e6cc6e73 100644 --- a/tools/perf/util/pstack.c +++ b/tools/perf/util/pstack.c @@ -6,6 +6,7 @@ #include "util.h" #include "pstack.h" +#include "debug.h" #include <linux/kernel.h> #include <stdlib.h> diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 122669c18ff4..3dda85ca50c1 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -14,12 +14,12 @@ */ int verbose; -int eprintf(int level, const char *fmt, ...) +int eprintf(int level, int var, const char *fmt, ...) { va_list args; int ret = 0; - if (verbose >= level) { + if (var >= level) { va_start(args, fmt); ret = vfprintf(stderr, fmt, args); va_end(args); @@ -736,7 +736,7 @@ static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist, if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout)) return NULL; - n = poll(evlist->pollfd, evlist->nr_fds, timeout); + n = perf_evlist__poll(evlist, timeout); if (n < 0) { PyErr_SetFromErrno(PyExc_OSError); return NULL; @@ -753,9 +753,9 @@ static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist, PyObject *list = PyList_New(0); int i; - for (i = 0; i < evlist->nr_fds; ++i) { + for (i = 0; i < evlist->pollfd.nr; ++i) { PyObject *file; - FILE *fp = fdopen(evlist->pollfd[i].fd, "r"); + FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r"); if (fp == NULL) goto free_list; diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c index 049e0a09ccd3..cf69325b985f 100644 --- a/tools/perf/util/record.c +++ b/tools/perf/util/record.c @@ -4,6 +4,7 @@ #include "parse-events.h" #include <api/fs/fs.h> #include "util.h" +#include "cloexec.h" typedef void (*setup_probe_fn_t)(struct perf_evsel *evsel); @@ -11,7 +12,9 @@ static int perf_do_probe_api(setup_probe_fn_t fn, int cpu, const char *str) { struct perf_evlist *evlist; struct perf_evsel *evsel; + unsigned long flags = perf_event_open_cloexec_flag(); int err = -EAGAIN, fd; + static pid_t pid = -1; evlist = perf_evlist__new(); if (!evlist) @@ -22,14 +25,22 @@ static int perf_do_probe_api(setup_probe_fn_t fn, int cpu, const char *str) evsel = perf_evlist__first(evlist); - fd = sys_perf_event_open(&evsel->attr, -1, cpu, -1, 0); - if (fd < 0) - goto out_delete; + while (1) { + fd = sys_perf_event_open(&evsel->attr, pid, cpu, -1, flags); + if (fd < 0) { + if (pid == -1 && errno == EACCES) { + pid = 0; + continue; + } + goto out_delete; + } + break; + } close(fd); fn(evsel); - fd = sys_perf_event_open(&evsel->attr, -1, cpu, -1, 0); + fd = sys_perf_event_open(&evsel->attr, pid, cpu, -1, flags); if (fd < 0) { if (errno == EINVAL) err = -EINVAL; @@ -45,7 +56,7 @@ out_delete: static bool perf_probe_api(setup_probe_fn_t fn) { - const char *try[] = {"cycles:u", "instructions:u", "cpu-clock", NULL}; + const char *try[] = {"cycles:u", "instructions:u", "cpu-clock:u", NULL}; struct cpu_map *cpus; int cpu, ret, i = 0; @@ -69,15 +80,26 @@ static void perf_probe_sample_identifier(struct perf_evsel *evsel) evsel->attr.sample_type |= PERF_SAMPLE_IDENTIFIER; } +static void perf_probe_comm_exec(struct perf_evsel *evsel) +{ + evsel->attr.comm_exec = 1; +} + bool perf_can_sample_identifier(void) { return perf_probe_api(perf_probe_sample_identifier); } +static bool perf_can_comm_exec(void) +{ + return perf_probe_api(perf_probe_comm_exec); +} + void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts) { struct perf_evsel *evsel; bool use_sample_identifier = false; + bool use_comm_exec; /* * Set the evsel leader links before we configure attributes, @@ -89,8 +111,13 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts) if (evlist->cpus->map[0] < 0) opts->no_inherit = true; - evlist__for_each(evlist, evsel) + use_comm_exec = perf_can_comm_exec(); + + evlist__for_each(evlist, evsel) { perf_evsel__config(evsel, opts); + if (evsel->tracking && use_comm_exec) + evsel->attr.comm_exec = 1; + } if (evlist->nr_entries > 1) { struct perf_evsel *first = perf_evlist__first(evlist); @@ -183,6 +210,7 @@ bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str) struct perf_evsel *evsel; int err, fd, cpu; bool ret = false; + pid_t pid = -1; temp_evlist = perf_evlist__new(); if (!temp_evlist) @@ -203,11 +231,20 @@ bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str) cpu = evlist->cpus->map[0]; } - fd = sys_perf_event_open(&evsel->attr, -1, cpu, -1, 0); - if (fd >= 0) { - close(fd); - ret = true; + while (1) { + fd = sys_perf_event_open(&evsel->attr, pid, cpu, -1, + perf_event_open_cloexec_flag()); + if (fd < 0) { + if (pid == -1 && errno == EACCES) { + pid = 0; + continue; + } + goto out_delete; + } + break; } + close(fd); + ret = true; out_delete: perf_evlist__delete(temp_evlist); diff --git a/tools/perf/util/run-command.c b/tools/perf/util/run-command.c index da8e9b285f51..34622b53e733 100644 --- a/tools/perf/util/run-command.c +++ b/tools/perf/util/run-command.c @@ -1,6 +1,7 @@ #include "cache.h" #include "run-command.h" #include "exec_cmd.h" +#include "debug.h" static inline void close_pair(int fd[2]) { @@ -19,6 +20,7 @@ int start_command(struct child_process *cmd) { int need_in, need_out, need_err; int fdin[2], fdout[2], fderr[2]; + char sbuf[STRERR_BUFSIZE]; /* * In case of errors we must keep the promise to close FDs @@ -99,7 +101,7 @@ int start_command(struct child_process *cmd) if (cmd->dir && chdir(cmd->dir)) die("exec %s: cd to %s failed (%s)", cmd->argv[0], - cmd->dir, strerror(errno)); + cmd->dir, strerror_r(errno, sbuf, sizeof(sbuf))); if (cmd->env) { for (; *cmd->env; cmd->env++) { if (strchr(*cmd->env, '=')) @@ -153,6 +155,8 @@ int start_command(struct child_process *cmd) static int wait_or_whine(pid_t pid) { + char sbuf[STRERR_BUFSIZE]; + for (;;) { int status, code; pid_t waiting = waitpid(pid, &status, 0); @@ -160,7 +164,8 @@ static int wait_or_whine(pid_t pid) if (waiting < 0) { if (errno == EINTR) continue; - error("waitpid failed (%s)", strerror(errno)); + error("waitpid failed (%s)", + strerror_r(errno, sbuf, sizeof(sbuf))); return -ERR_RUN_COMMAND_WAITPID; } if (waiting != pid) diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c index af7da565a750..0a01bac4ce02 100644 --- a/tools/perf/util/scripting-engines/trace-event-perl.c +++ b/tools/perf/util/scripting-engines/trace-event-perl.c @@ -34,6 +34,7 @@ #include "../event.h" #include "../trace-event.h" #include "../evsel.h" +#include "../debug.h" void boot_Perf__Trace__Context(pTHX_ CV *cv); void boot_DynaLoader(pTHX_ CV *cv); @@ -431,6 +432,11 @@ error: return err; } +static int perl_flush_script(void) +{ + return 0; +} + /* * Stop trace script */ @@ -632,6 +638,7 @@ static int perl_generate_script(struct pevent *pevent, const char *outfile) struct scripting_ops perl_scripting_ops = { .name = "Perl", .start_script = perl_start_script, + .flush_script = perl_flush_script, .stop_script = perl_stop_script, .process_event = perl_process_event, .generate_script = perl_generate_script, diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index 1c419321f707..496f21cadd97 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -27,11 +27,14 @@ #include <errno.h> #include "../../perf.h" +#include "../debug.h" +#include "../callchain.h" #include "../evsel.h" #include "../util.h" #include "../event.h" #include "../thread.h" #include "../trace-event.h" +#include "../machine.h" PyMODINIT_FUNC initperf_trace_context(void); @@ -50,10 +53,14 @@ static int zero_flag_atom; static PyObject *main_module, *main_dict; +static void handler_call_die(const char *handler_name) NORETURN; static void handler_call_die(const char *handler_name) { PyErr_Print(); Py_FatalError("problem in Python trace event handler"); + // Py_FatalError does not return + // but we have to make the compiler happy + abort(); } /* @@ -67,6 +74,35 @@ static void pydict_set_item_string_decref(PyObject *dict, const char *key, PyObj Py_DECREF(val); } +static PyObject *get_handler(const char *handler_name) +{ + PyObject *handler; + + handler = PyDict_GetItemString(main_dict, handler_name); + if (handler && !PyCallable_Check(handler)) + return NULL; + return handler; +} + +static void call_object(PyObject *handler, PyObject *args, const char *die_msg) +{ + PyObject *retval; + + retval = PyObject_CallObject(handler, args); + if (retval == NULL) + handler_call_die(die_msg); + Py_DECREF(retval); +} + +static void try_call_object(const char *handler_name, PyObject *args) +{ + PyObject *handler; + + handler = get_handler(handler_name); + if (handler) + call_object(handler, args, handler_name); +} + static void define_value(enum print_arg_type field_type, const char *ev_name, const char *field_name, @@ -74,7 +110,7 @@ static void define_value(enum print_arg_type field_type, const char *field_str) { const char *handler_name = "define_flag_value"; - PyObject *handler, *t, *retval; + PyObject *t; unsigned long long value; unsigned n = 0; @@ -92,12 +128,7 @@ static void define_value(enum print_arg_type field_type, PyTuple_SetItem(t, n++, PyInt_FromLong(value)); PyTuple_SetItem(t, n++, PyString_FromString(field_str)); - handler = PyDict_GetItemString(main_dict, handler_name); - if (handler && PyCallable_Check(handler)) { - retval = PyObject_CallObject(handler, t); - if (retval == NULL) - handler_call_die(handler_name); - } + try_call_object(handler_name, t); Py_DECREF(t); } @@ -120,7 +151,7 @@ static void define_field(enum print_arg_type field_type, const char *delim) { const char *handler_name = "define_flag_field"; - PyObject *handler, *t, *retval; + PyObject *t; unsigned n = 0; if (field_type == PRINT_SYMBOL) @@ -138,12 +169,7 @@ static void define_field(enum print_arg_type field_type, if (field_type == PRINT_FLAGS) PyTuple_SetItem(t, n++, PyString_FromString(delim)); - handler = PyDict_GetItemString(main_dict, handler_name); - if (handler && PyCallable_Check(handler)) { - retval = PyObject_CallObject(handler, t); - if (retval == NULL) - handler_call_die(handler_name); - } + try_call_object(handler_name, t); Py_DECREF(t); } @@ -231,15 +257,133 @@ static inline struct event_format *find_cache_event(struct perf_evsel *evsel) return event; } +static PyObject *get_field_numeric_entry(struct event_format *event, + struct format_field *field, void *data) +{ + bool is_array = field->flags & FIELD_IS_ARRAY; + PyObject *obj, *list = NULL; + unsigned long long val; + unsigned int item_size, n_items, i; + + if (is_array) { + list = PyList_New(field->arraylen); + item_size = field->size / field->arraylen; + n_items = field->arraylen; + } else { + item_size = field->size; + n_items = 1; + } + + for (i = 0; i < n_items; i++) { + + val = read_size(event, data + field->offset + i * item_size, + item_size); + if (field->flags & FIELD_IS_SIGNED) { + if ((long long)val >= LONG_MIN && + (long long)val <= LONG_MAX) + obj = PyInt_FromLong(val); + else + obj = PyLong_FromLongLong(val); + } else { + if (val <= LONG_MAX) + obj = PyInt_FromLong(val); + else + obj = PyLong_FromUnsignedLongLong(val); + } + if (is_array) + PyList_SET_ITEM(list, i, obj); + } + if (is_array) + obj = list; + return obj; +} + + +static PyObject *python_process_callchain(struct perf_sample *sample, + struct perf_evsel *evsel, + struct addr_location *al) +{ + PyObject *pylist; + + pylist = PyList_New(0); + if (!pylist) + Py_FatalError("couldn't create Python list"); + + if (!symbol_conf.use_callchain || !sample->callchain) + goto exit; + + if (machine__resolve_callchain(al->machine, evsel, al->thread, + sample, NULL, NULL, + PERF_MAX_STACK_DEPTH) != 0) { + pr_err("Failed to resolve callchain. Skipping\n"); + goto exit; + } + callchain_cursor_commit(&callchain_cursor); + + + while (1) { + PyObject *pyelem; + struct callchain_cursor_node *node; + node = callchain_cursor_current(&callchain_cursor); + if (!node) + break; + + pyelem = PyDict_New(); + if (!pyelem) + Py_FatalError("couldn't create Python dictionary"); + + + pydict_set_item_string_decref(pyelem, "ip", + PyLong_FromUnsignedLongLong(node->ip)); + + if (node->sym) { + PyObject *pysym = PyDict_New(); + if (!pysym) + Py_FatalError("couldn't create Python dictionary"); + pydict_set_item_string_decref(pysym, "start", + PyLong_FromUnsignedLongLong(node->sym->start)); + pydict_set_item_string_decref(pysym, "end", + PyLong_FromUnsignedLongLong(node->sym->end)); + pydict_set_item_string_decref(pysym, "binding", + PyInt_FromLong(node->sym->binding)); + pydict_set_item_string_decref(pysym, "name", + PyString_FromStringAndSize(node->sym->name, + node->sym->namelen)); + pydict_set_item_string_decref(pyelem, "sym", pysym); + } + + if (node->map) { + struct map *map = node->map; + const char *dsoname = "[unknown]"; + if (map && map->dso && (map->dso->name || map->dso->long_name)) { + if (symbol_conf.show_kernel_path && map->dso->long_name) + dsoname = map->dso->long_name; + else if (map->dso->name) + dsoname = map->dso->name; + } + pydict_set_item_string_decref(pyelem, "dso", + PyString_FromString(dsoname)); + } + + callchain_cursor_advance(&callchain_cursor); + PyList_Append(pylist, pyelem); + Py_DECREF(pyelem); + } + +exit: + return pylist; +} + + static void python_process_tracepoint(struct perf_sample *sample, struct perf_evsel *evsel, struct thread *thread, struct addr_location *al) { - PyObject *handler, *retval, *context, *t, *obj, *dict = NULL; + PyObject *handler, *context, *t, *obj, *callchain; + PyObject *dict = NULL; static char handler_name[256]; struct format_field *field; - unsigned long long val; unsigned long s, ns; struct event_format *event; unsigned n = 0; @@ -261,9 +405,7 @@ static void python_process_tracepoint(struct perf_sample *sample, sprintf(handler_name, "%s__%s", event->system, event->name); - handler = PyDict_GetItemString(main_dict, handler_name); - if (handler && !PyCallable_Check(handler)) - handler = NULL; + handler = get_handler(handler_name); if (!handler) { dict = PyDict_New(); if (!dict) @@ -280,18 +422,23 @@ static void python_process_tracepoint(struct perf_sample *sample, PyTuple_SetItem(t, n++, PyString_FromString(handler_name)); PyTuple_SetItem(t, n++, context); + /* ip unwinding */ + callchain = python_process_callchain(sample, evsel, al); + if (handler) { PyTuple_SetItem(t, n++, PyInt_FromLong(cpu)); PyTuple_SetItem(t, n++, PyInt_FromLong(s)); PyTuple_SetItem(t, n++, PyInt_FromLong(ns)); PyTuple_SetItem(t, n++, PyInt_FromLong(pid)); PyTuple_SetItem(t, n++, PyString_FromString(comm)); + PyTuple_SetItem(t, n++, callchain); } else { pydict_set_item_string_decref(dict, "common_cpu", PyInt_FromLong(cpu)); pydict_set_item_string_decref(dict, "common_s", PyInt_FromLong(s)); pydict_set_item_string_decref(dict, "common_ns", PyInt_FromLong(ns)); pydict_set_item_string_decref(dict, "common_pid", PyInt_FromLong(pid)); pydict_set_item_string_decref(dict, "common_comm", PyString_FromString(comm)); + pydict_set_item_string_decref(dict, "common_callchain", callchain); } for (field = event->format.fields; field; field = field->next) { if (field->flags & FIELD_IS_STRING) { @@ -303,20 +450,7 @@ static void python_process_tracepoint(struct perf_sample *sample, offset = field->offset; obj = PyString_FromString((char *)data + offset); } else { /* FIELD_IS_NUMERIC */ - val = read_size(event, data + field->offset, - field->size); - if (field->flags & FIELD_IS_SIGNED) { - if ((long long)val >= LONG_MIN && - (long long)val <= LONG_MAX) - obj = PyInt_FromLong(val); - else - obj = PyLong_FromLongLong(val); - } else { - if (val <= LONG_MAX) - obj = PyInt_FromLong(val); - else - obj = PyLong_FromUnsignedLongLong(val); - } + obj = get_field_numeric_entry(event, field, data); } if (handler) PyTuple_SetItem(t, n++, obj); @@ -324,6 +458,7 @@ static void python_process_tracepoint(struct perf_sample *sample, pydict_set_item_string_decref(dict, field->name, obj); } + if (!handler) PyTuple_SetItem(t, n++, dict); @@ -331,17 +466,9 @@ static void python_process_tracepoint(struct perf_sample *sample, Py_FatalError("error resizing Python tuple"); if (handler) { - retval = PyObject_CallObject(handler, t); - if (retval == NULL) - handler_call_die(handler_name); + call_object(handler, t, handler_name); } else { - handler = PyDict_GetItemString(main_dict, "trace_unhandled"); - if (handler && PyCallable_Check(handler)) { - - retval = PyObject_CallObject(handler, t); - if (retval == NULL) - handler_call_die("trace_unhandled"); - } + try_call_object("trace_unhandled", t); Py_DECREF(dict); } @@ -353,7 +480,7 @@ static void python_process_general_event(struct perf_sample *sample, struct thread *thread, struct addr_location *al) { - PyObject *handler, *retval, *t, *dict; + PyObject *handler, *t, *dict, *callchain, *dict_sample; static char handler_name[64]; unsigned n = 0; @@ -369,17 +496,34 @@ static void python_process_general_event(struct perf_sample *sample, if (!dict) Py_FatalError("couldn't create Python dictionary"); + dict_sample = PyDict_New(); + if (!dict_sample) + Py_FatalError("couldn't create Python dictionary"); + snprintf(handler_name, sizeof(handler_name), "%s", "process_event"); - handler = PyDict_GetItemString(main_dict, handler_name); - if (!handler || !PyCallable_Check(handler)) + handler = get_handler(handler_name); + if (!handler) goto exit; pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel))); pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize( (const char *)&evsel->attr, sizeof(evsel->attr))); - pydict_set_item_string_decref(dict, "sample", PyString_FromStringAndSize( - (const char *)sample, sizeof(*sample))); + + pydict_set_item_string_decref(dict_sample, "pid", + PyInt_FromLong(sample->pid)); + pydict_set_item_string_decref(dict_sample, "tid", + PyInt_FromLong(sample->tid)); + pydict_set_item_string_decref(dict_sample, "cpu", + PyInt_FromLong(sample->cpu)); + pydict_set_item_string_decref(dict_sample, "ip", + PyLong_FromUnsignedLongLong(sample->ip)); + pydict_set_item_string_decref(dict_sample, "time", + PyLong_FromUnsignedLongLong(sample->time)); + pydict_set_item_string_decref(dict_sample, "period", + PyLong_FromUnsignedLongLong(sample->period)); + pydict_set_item_string_decref(dict, "sample", dict_sample); + pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize( (const char *)sample->raw_data, sample->raw_size)); pydict_set_item_string_decref(dict, "comm", @@ -393,13 +537,15 @@ static void python_process_general_event(struct perf_sample *sample, PyString_FromString(al->sym->name)); } + /* ip unwinding */ + callchain = python_process_callchain(sample, evsel, al); + pydict_set_item_string_decref(dict, "callchain", callchain); + PyTuple_SetItem(t, n++, dict); if (_PyTuple_Resize(&t, n) == -1) Py_FatalError("error resizing Python tuple"); - retval = PyObject_CallObject(handler, t); - if (retval == NULL) - handler_call_die(handler_name); + call_object(handler, t, handler_name); exit: Py_DECREF(dict); Py_DECREF(t); @@ -423,36 +569,24 @@ static void python_process_event(union perf_event *event __maybe_unused, static int run_start_sub(void) { - PyObject *handler, *retval; - int err = 0; - main_module = PyImport_AddModule("__main__"); if (main_module == NULL) return -1; Py_INCREF(main_module); main_dict = PyModule_GetDict(main_module); - if (main_dict == NULL) { - err = -1; + if (main_dict == NULL) goto error; - } Py_INCREF(main_dict); - handler = PyDict_GetItemString(main_dict, "trace_begin"); - if (handler == NULL || !PyCallable_Check(handler)) - goto out; + try_call_object("trace_begin", NULL); - retval = PyObject_CallObject(handler, NULL); - if (retval == NULL) - handler_call_die("trace_begin"); + return 0; - Py_DECREF(retval); - return err; error: Py_XDECREF(main_dict); Py_XDECREF(main_module); -out: - return err; + return -1; } /* @@ -506,29 +640,23 @@ error: return err; } +static int python_flush_script(void) +{ + return 0; +} + /* * Stop trace script */ static int python_stop_script(void) { - PyObject *handler, *retval; - int err = 0; - - handler = PyDict_GetItemString(main_dict, "trace_end"); - if (handler == NULL || !PyCallable_Check(handler)) - goto out; + try_call_object("trace_end", NULL); - retval = PyObject_CallObject(handler, NULL); - if (retval == NULL) - handler_call_die("trace_end"); - else - Py_DECREF(retval); -out: Py_XDECREF(main_dict); Py_XDECREF(main_module); Py_Finalize(); - return err; + return 0; } static int python_generate_script(struct pevent *pevent, const char *outfile) @@ -589,6 +717,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile) fprintf(ofp, "common_nsecs, "); fprintf(ofp, "common_pid, "); fprintf(ofp, "common_comm,\n\t"); + fprintf(ofp, "common_callchain, "); not_first = 0; count = 0; @@ -632,7 +761,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile) fprintf(ofp, "%%u"); } - fprintf(ofp, "\\n\" %% \\\n\t\t("); + fprintf(ofp, "\" %% \\\n\t\t("); not_first = 0; count = 0; @@ -668,7 +797,15 @@ static int python_generate_script(struct pevent *pevent, const char *outfile) fprintf(ofp, "%s", f->name); } - fprintf(ofp, "),\n\n"); + fprintf(ofp, ")\n\n"); + + fprintf(ofp, "\t\tfor node in common_callchain:"); + fprintf(ofp, "\n\t\t\tif 'sym' in node:"); + fprintf(ofp, "\n\t\t\t\tprint \"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name'])"); + fprintf(ofp, "\n\t\t\telse:"); + fprintf(ofp, "\n\t\t\t\tprint \"\t[%%x]\" %% (node['ip'])\n\n"); + fprintf(ofp, "\t\tprint \"\\n\"\n\n"); + } fprintf(ofp, "def trace_unhandled(event_name, context, " @@ -692,6 +829,7 @@ static int python_generate_script(struct pevent *pevent, const char *outfile) struct scripting_ops python_scripting_ops = { .name = "Python", .start_script = python_start_script, + .flush_script = python_flush_script, .stop_script = python_stop_script, .process_event = python_process_event, .generate_script = python_generate_script, diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 64a186edc7be..6702ac28754b 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -14,7 +14,7 @@ #include "util.h" #include "cpumap.h" #include "perf_regs.h" -#include "vdso.h" +#include "asm/bug.h" static int perf_session__open(struct perf_session *session) { @@ -67,6 +67,25 @@ static void perf_session__destroy_kernel_maps(struct perf_session *session) machines__destroy_kernel_maps(&session->machines); } +static bool perf_session__has_comm_exec(struct perf_session *session) +{ + struct perf_evsel *evsel; + + evlist__for_each(session->evlist, evsel) { + if (evsel->attr.comm_exec) + return true; + } + + return false; +} + +static void perf_session__set_comm_exec(struct perf_session *session) +{ + bool comm_exec = perf_session__has_comm_exec(session); + + machines__set_comm_exec(&session->machines, comm_exec); +} + struct perf_session *perf_session__new(struct perf_data_file *file, bool repipe, struct perf_tool *tool) { @@ -76,9 +95,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file, goto out; session->repipe = repipe; - INIT_LIST_HEAD(&session->ordered_samples.samples); - INIT_LIST_HEAD(&session->ordered_samples.sample_cache); - INIT_LIST_HEAD(&session->ordered_samples.to_free); + ordered_events__init(&session->ordered_events); machines__init(&session->machines); if (file) { @@ -92,6 +109,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file, goto out_close; perf_session__set_id_hdr_size(session); + perf_session__set_comm_exec(session); } } @@ -101,13 +119,13 @@ struct perf_session *perf_session__new(struct perf_data_file *file, * kernel MMAP event, in perf_event__process_mmap(). */ if (perf_session__create_kernel_maps(session) < 0) - goto out_delete; + pr_warning("Cannot read kernel map\n"); } if (tool && tool->ordering_requires_timestamps && - tool->ordered_samples && !perf_evlist__sample_id_all(session->evlist)) { + tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) { dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); - tool->ordered_samples = false; + tool->ordered_events = false; } return session; @@ -156,7 +174,6 @@ void perf_session__delete(struct perf_session *session) if (session->file) perf_data_file__close(session->file); free(session); - vdso__exit(); } static int process_event_synth_tracing_data_stub(struct perf_tool *tool @@ -240,7 +257,7 @@ void perf_tool__fill_defaults(struct perf_tool *tool) if (tool->build_id == NULL) tool->build_id = process_finished_round_stub; if (tool->finished_round == NULL) { - if (tool->ordered_samples) + if (tool->ordered_events) tool->finished_round = process_finished_round; else tool->finished_round = process_finished_round_stub; @@ -446,88 +463,6 @@ static perf_event__swap_op perf_event__swap_ops[] = { [PERF_RECORD_HEADER_MAX] = NULL, }; -struct sample_queue { - u64 timestamp; - u64 file_offset; - union perf_event *event; - struct list_head list; -}; - -static void perf_session_free_sample_buffers(struct perf_session *session) -{ - struct ordered_samples *os = &session->ordered_samples; - - while (!list_empty(&os->to_free)) { - struct sample_queue *sq; - - sq = list_entry(os->to_free.next, struct sample_queue, list); - list_del(&sq->list); - free(sq); - } -} - -static int perf_session_deliver_event(struct perf_session *session, - union perf_event *event, - struct perf_sample *sample, - struct perf_tool *tool, - u64 file_offset); - -static int flush_sample_queue(struct perf_session *s, - struct perf_tool *tool) -{ - struct ordered_samples *os = &s->ordered_samples; - struct list_head *head = &os->samples; - struct sample_queue *tmp, *iter; - struct perf_sample sample; - u64 limit = os->next_flush; - u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; - bool show_progress = limit == ULLONG_MAX; - struct ui_progress prog; - int ret; - - if (!tool->ordered_samples || !limit) - return 0; - - if (show_progress) - ui_progress__init(&prog, os->nr_samples, "Processing time ordered events..."); - - list_for_each_entry_safe(iter, tmp, head, list) { - if (session_done()) - return 0; - - if (iter->timestamp > limit) - break; - - ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); - if (ret) - pr_err("Can't parse sample, err = %d\n", ret); - else { - ret = perf_session_deliver_event(s, iter->event, &sample, tool, - iter->file_offset); - if (ret) - return ret; - } - - os->last_flush = iter->timestamp; - list_del(&iter->list); - list_add(&iter->list, &os->sample_cache); - - if (show_progress) - ui_progress__update(&prog, 1); - } - - if (list_empty(head)) { - os->last_sample = NULL; - } else if (last_ts <= limit) { - os->last_sample = - list_entry(head->prev, struct sample_queue, list); - } - - os->nr_samples = 0; - - return 0; -} - /* * When perf record finishes a pass on every buffers, it records this pseudo * event. @@ -571,99 +506,42 @@ static int process_finished_round(struct perf_tool *tool, union perf_event *event __maybe_unused, struct perf_session *session) { - int ret = flush_sample_queue(session, tool); - if (!ret) - session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; - - return ret; -} - -/* The queue is ordered by time */ -static void __queue_event(struct sample_queue *new, struct perf_session *s) -{ - struct ordered_samples *os = &s->ordered_samples; - struct sample_queue *sample = os->last_sample; - u64 timestamp = new->timestamp; - struct list_head *p; - - ++os->nr_samples; - os->last_sample = new; - - if (!sample) { - list_add(&new->list, &os->samples); - os->max_timestamp = timestamp; - return; - } - - /* - * last_sample might point to some random place in the list as it's - * the last queued event. We expect that the new event is close to - * this. - */ - if (sample->timestamp <= timestamp) { - while (sample->timestamp <= timestamp) { - p = sample->list.next; - if (p == &os->samples) { - list_add_tail(&new->list, &os->samples); - os->max_timestamp = timestamp; - return; - } - sample = list_entry(p, struct sample_queue, list); - } - list_add_tail(&new->list, &sample->list); - } else { - while (sample->timestamp > timestamp) { - p = sample->list.prev; - if (p == &os->samples) { - list_add(&new->list, &os->samples); - return; - } - sample = list_entry(p, struct sample_queue, list); - } - list_add(&new->list, &sample->list); - } + return ordered_events__flush(session, tool, OE_FLUSH__ROUND); } -#define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) - int perf_session_queue_event(struct perf_session *s, union perf_event *event, - struct perf_sample *sample, u64 file_offset) + struct perf_tool *tool, struct perf_sample *sample, + u64 file_offset) { - struct ordered_samples *os = &s->ordered_samples; - struct list_head *sc = &os->sample_cache; + struct ordered_events *oe = &s->ordered_events; u64 timestamp = sample->time; - struct sample_queue *new; + struct ordered_event *new; if (!timestamp || timestamp == ~0ULL) return -ETIME; - if (timestamp < s->ordered_samples.last_flush) { - printf("Warning: Timestamp below last timeslice flush\n"); - return -EINVAL; - } + if (timestamp < oe->last_flush) { + WARN_ONCE(1, "Timestamp below last timeslice flush\n"); - if (!list_empty(sc)) { - new = list_entry(sc->next, struct sample_queue, list); - list_del(&new->list); - } else if (os->sample_buffer) { - new = os->sample_buffer + os->sample_buffer_idx; - if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) - os->sample_buffer = NULL; - } else { - os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); - if (!os->sample_buffer) - return -ENOMEM; - list_add(&os->sample_buffer->list, &os->to_free); - os->sample_buffer_idx = 2; - new = os->sample_buffer + 1; + pr_oe_time(timestamp, "out of order event"); + pr_oe_time(oe->last_flush, "last flush, last_flush_type %d\n", + oe->last_flush_type); + + /* We could get out of order messages after forced flush. */ + if (oe->last_flush_type != OE_FLUSH__HALF) + return -EINVAL; } - new->timestamp = timestamp; - new->file_offset = file_offset; - new->event = event; + new = ordered_events__new(oe, timestamp, event); + if (!new) { + ordered_events__flush(s, tool, OE_FLUSH__HALF); + new = ordered_events__new(oe, timestamp, event); + } - __queue_event(new, s); + if (!new) + return -ENOMEM; + new->file_offset = file_offset; return 0; } @@ -923,11 +801,10 @@ perf_session__deliver_sample(struct perf_session *session, &sample->read.one, machine); } -static int perf_session_deliver_event(struct perf_session *session, - union perf_event *event, - struct perf_sample *sample, - struct perf_tool *tool, - u64 file_offset) +int perf_session__deliver_event(struct perf_session *session, + union perf_event *event, + struct perf_sample *sample, + struct perf_tool *tool, u64 file_offset) { struct perf_evsel *evsel; struct machine *machine; @@ -935,22 +812,6 @@ static int perf_session_deliver_event(struct perf_session *session, dump_event(session, event, file_offset, sample); evsel = perf_evlist__id2evsel(session->evlist, sample->id); - if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { - /* - * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here - * because the tools right now may apply filters, discarding - * some of the samples. For consistency, in the future we - * should have something like nr_filtered_samples and remove - * the sample->period from total_sample_period, etc, KISS for - * now tho. - * - * Also testing against NULL allows us to handle files without - * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the - * future probably it'll be a good idea to restrict event - * processing via perf_session to files with both set. - */ - hists__inc_nr_events(&evsel->hists, event->header.type); - } machine = perf_session__find_machine_for_cpumode(session, event, sample); @@ -994,8 +855,10 @@ static int perf_session_deliver_event(struct perf_session *session, } } -static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, - struct perf_tool *tool, u64 file_offset) +static s64 perf_session__process_user_event(struct perf_session *session, + union perf_event *event, + struct perf_tool *tool, + u64 file_offset) { int fd = perf_data_file__fd(session->file); int err; @@ -1006,8 +869,10 @@ static int perf_session__process_user_event(struct perf_session *session, union switch (event->header.type) { case PERF_RECORD_HEADER_ATTR: err = tool->attr(tool, event, &session->evlist); - if (err == 0) + if (err == 0) { perf_session__set_id_hdr_size(session); + perf_session__set_comm_exec(session); + } return err; case PERF_RECORD_HEADER_EVENT_TYPE: /* @@ -1037,7 +902,62 @@ static void event_swap(union perf_event *event, bool sample_id_all) swap(event, sample_id_all); } -static int perf_session__process_event(struct perf_session *session, +int perf_session__peek_event(struct perf_session *session, off_t file_offset, + void *buf, size_t buf_sz, + union perf_event **event_ptr, + struct perf_sample *sample) +{ + union perf_event *event; + size_t hdr_sz, rest; + int fd; + + if (session->one_mmap && !session->header.needs_swap) { + event = file_offset - session->one_mmap_offset + + session->one_mmap_addr; + goto out_parse_sample; + } + + if (perf_data_file__is_pipe(session->file)) + return -1; + + fd = perf_data_file__fd(session->file); + hdr_sz = sizeof(struct perf_event_header); + + if (buf_sz < hdr_sz) + return -1; + + if (lseek(fd, file_offset, SEEK_SET) == (off_t)-1 || + readn(fd, &buf, hdr_sz) != (ssize_t)hdr_sz) + return -1; + + event = (union perf_event *)buf; + + if (session->header.needs_swap) + perf_event_header__bswap(&event->header); + + if (event->header.size < hdr_sz) + return -1; + + rest = event->header.size - hdr_sz; + + if (readn(fd, &buf, rest) != (ssize_t)rest) + return -1; + + if (session->header.needs_swap) + event_swap(event, perf_evlist__sample_id_all(session->evlist)); + +out_parse_sample: + + if (sample && event->header.type < PERF_RECORD_USER_TYPE_START && + perf_evlist__parse_sample(session->evlist, event, sample)) + return -1; + + *event_ptr = event; + + return 0; +} + +static s64 perf_session__process_event(struct perf_session *session, union perf_event *event, struct perf_tool *tool, u64 file_offset) @@ -1063,15 +983,15 @@ static int perf_session__process_event(struct perf_session *session, if (ret) return ret; - if (tool->ordered_samples) { - ret = perf_session_queue_event(session, event, &sample, + if (tool->ordered_events) { + ret = perf_session_queue_event(session, event, tool, &sample, file_offset); if (ret != -ETIME) return ret; } - return perf_session_deliver_event(session, event, &sample, tool, - file_offset); + return perf_session__deliver_event(session, event, &sample, tool, + file_offset); } void perf_event_header__bswap(struct perf_event_header *hdr) @@ -1083,13 +1003,14 @@ void perf_event_header__bswap(struct perf_event_header *hdr) struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) { - return machine__findnew_thread(&session->machines.host, 0, pid); + return machine__findnew_thread(&session->machines.host, -1, pid); } static struct thread *perf_session__register_idle_thread(struct perf_session *session) { - struct thread *thread = perf_session__findnew(session, 0); + struct thread *thread; + thread = machine__findnew_thread(&session->machines.host, 0, 0); if (thread == NULL || thread__set_comm(thread, "swapper", 0)) { pr_err("problem inserting idle task.\n"); thread = NULL; @@ -1147,7 +1068,7 @@ static int __perf_session__process_pipe_events(struct perf_session *session, union perf_event *event; uint32_t size, cur_size = 0; void *buf = NULL; - int skip = 0; + s64 skip = 0; u64 head; ssize_t err; void *p; @@ -1222,12 +1143,11 @@ more: goto more; done: /* do the final flush for ordered samples */ - session->ordered_samples.next_flush = ULLONG_MAX; - err = flush_sample_queue(session, tool); + err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); out_err: free(buf); perf_session__warn_about_errors(session, tool); - perf_session_free_sample_buffers(session); + ordered_events__free(&session->ordered_events); return err; } @@ -1276,13 +1196,13 @@ int __perf_session__process_events(struct perf_session *session, u64 file_size, struct perf_tool *tool) { int fd = perf_data_file__fd(session->file); - u64 head, page_offset, file_offset, file_pos; + u64 head, page_offset, file_offset, file_pos, size; int err, mmap_prot, mmap_flags, map_idx = 0; size_t mmap_size; char *buf, *mmaps[NUM_MMAPS]; union perf_event *event; - uint32_t size; struct ui_progress prog; + s64 skip; perf_tool__fill_defaults(tool); @@ -1296,8 +1216,10 @@ int __perf_session__process_events(struct perf_session *session, ui_progress__init(&prog, file_size, "Processing events..."); mmap_size = MMAP_SIZE; - if (mmap_size > file_size) + if (mmap_size > file_size) { mmap_size = file_size; + session->one_mmap = true; + } memset(mmaps, 0, sizeof(mmaps)); @@ -1319,6 +1241,10 @@ remap: mmaps[map_idx] = buf; map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); file_pos = file_offset + head; + if (session->one_mmap) { + session->one_mmap_addr = buf; + session->one_mmap_offset = file_offset; + } more: event = fetch_mmaped_event(session, head, mmap_size, buf); @@ -1337,7 +1263,8 @@ more: size = event->header.size; if (size < sizeof(struct perf_event_header) || - perf_session__process_event(session, event, tool, file_pos) < 0) { + (skip = perf_session__process_event(session, event, tool, file_pos)) + < 0) { pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", file_offset + head, event->header.size, event->header.type); @@ -1345,6 +1272,9 @@ more: goto out_err; } + if (skip) + size += skip; + head += size; file_pos += size; @@ -1358,12 +1288,12 @@ more: out: /* do the final flush for ordered samples */ - session->ordered_samples.next_flush = ULLONG_MAX; - err = flush_sample_queue(session, tool); + err = ordered_events__flush(session, tool, OE_FLUSH__FINAL); out_err: ui_progress__finish(); perf_session__warn_about_errors(session, tool); - perf_session_free_sample_buffers(session); + ordered_events__free(&session->ordered_events); + session->one_mmap = false; return err; } @@ -1444,16 +1374,9 @@ size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) { - struct perf_evsel *pos; size_t ret = fprintf(fp, "Aggregated stats:\n"); ret += events_stats__fprintf(&session->stats, fp); - - evlist__for_each(session->evlist, pos) { - ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); - ret += events_stats__fprintf(&pos->hists.stats, fp); - } - return ret; } diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index 3140f8ae6148..a4be851f1a90 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -2,33 +2,19 @@ #define __PERF_SESSION_H #include "trace-event.h" -#include "hist.h" #include "event.h" #include "header.h" #include "machine.h" #include "symbol.h" #include "thread.h" #include "data.h" +#include "ordered-events.h" #include <linux/rbtree.h> #include <linux/perf_event.h> -struct sample_queue; struct ip_callchain; struct thread; -struct ordered_samples { - u64 last_flush; - u64 next_flush; - u64 max_timestamp; - struct list_head samples; - struct list_head sample_cache; - struct list_head to_free; - struct sample_queue *sample_buffer; - struct sample_queue *last_sample; - int sample_buffer_idx; - unsigned int nr_samples; -}; - struct perf_session { struct perf_header header; struct machines machines; @@ -36,7 +22,10 @@ struct perf_session { struct trace_event tevent; struct events_stats stats; bool repipe; - struct ordered_samples ordered_samples; + bool one_mmap; + void *one_mmap_addr; + u64 one_mmap_offset; + struct ordered_events ordered_events; struct perf_data_file *file; }; @@ -55,6 +44,11 @@ void perf_session__delete(struct perf_session *session); void perf_event_header__bswap(struct perf_event_header *hdr); +int perf_session__peek_event(struct perf_session *session, off_t file_offset, + void *buf, size_t buf_sz, + union perf_event **event_ptr, + struct perf_sample *sample); + int __perf_session__process_events(struct perf_session *session, u64 data_offset, u64 data_size, u64 size, struct perf_tool *tool); @@ -62,10 +56,16 @@ int perf_session__process_events(struct perf_session *session, struct perf_tool *tool); int perf_session_queue_event(struct perf_session *s, union perf_event *event, - struct perf_sample *sample, u64 file_offset); + struct perf_tool *tool, struct perf_sample *sample, + u64 file_offset); void perf_tool__fill_defaults(struct perf_tool *tool); +int perf_session__deliver_event(struct perf_session *session, + union perf_event *event, + struct perf_sample *sample, + struct perf_tool *tool, u64 file_offset); + int perf_session__resolve_callchain(struct perf_session *session, struct perf_evsel *evsel, struct thread *thread, @@ -125,5 +125,5 @@ int __perf_session__set_tracepoints_handlers(struct perf_session *session, extern volatile int session_done; -#define session_done() (*(volatile int *)(&session_done)) +#define session_done() ACCESS_ONCE(session_done) #endif /* __PERF_SESSION_H */ diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index 1ec57dd82284..4906cd81cb56 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -70,12 +70,14 @@ static int hist_entry__thread_snprintf(struct hist_entry *he, char *bf, size_t size, unsigned int width) { const char *comm = thread__comm_str(he->thread); - return repsep_snprintf(bf, size, "%*s:%5d", width - 6, - comm ?: "", he->thread->tid); + + width = max(7U, width) - 6; + return repsep_snprintf(bf, size, "%5d:%-*.*s", he->thread->tid, + width, width, comm ?: ""); } struct sort_entry sort_thread = { - .se_header = "Command: Pid", + .se_header = " Pid:Command", .se_cmp = sort__thread_cmp, .se_snprintf = hist_entry__thread_snprintf, .se_width_idx = HISTC_THREAD, @@ -106,7 +108,7 @@ sort__comm_sort(struct hist_entry *left, struct hist_entry *right) static int hist_entry__comm_snprintf(struct hist_entry *he, char *bf, size_t size, unsigned int width) { - return repsep_snprintf(bf, size, "%*s", width, comm__str(he->comm)); + return repsep_snprintf(bf, size, "%-*.*s", width, width, comm__str(he->comm)); } struct sort_entry sort_comm = { @@ -152,10 +154,10 @@ static int _hist_entry__dso_snprintf(struct map *map, char *bf, if (map && map->dso) { const char *dso_name = !verbose ? map->dso->short_name : map->dso->long_name; - return repsep_snprintf(bf, size, "%-*s", width, dso_name); + return repsep_snprintf(bf, size, "%-*.*s", width, width, dso_name); } - return repsep_snprintf(bf, size, "%-*s", width, "[unknown]"); + return repsep_snprintf(bf, size, "%-*.*s", width, width, "[unknown]"); } static int hist_entry__dso_snprintf(struct hist_entry *he, char *bf, @@ -257,7 +259,10 @@ static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym, width - ret, ""); } - return ret; + if (ret > width) + bf[width] = '\0'; + + return width; } static int hist_entry__sym_snprintf(struct hist_entry *he, char *bf, @@ -302,10 +307,9 @@ sort__srcline_cmp(struct hist_entry *left, struct hist_entry *right) } static int hist_entry__srcline_snprintf(struct hist_entry *he, char *bf, - size_t size, - unsigned int width __maybe_unused) + size_t size, unsigned int width) { - return repsep_snprintf(bf, size, "%s", he->srcline); + return repsep_snprintf(bf, size, "%*.*-s", width, width, he->srcline); } struct sort_entry sort_srcline = { @@ -332,7 +336,7 @@ sort__parent_cmp(struct hist_entry *left, struct hist_entry *right) static int hist_entry__parent_snprintf(struct hist_entry *he, char *bf, size_t size, unsigned int width) { - return repsep_snprintf(bf, size, "%-*s", width, + return repsep_snprintf(bf, size, "%-*.*s", width, width, he->parent ? he->parent->name : "[other]"); } @@ -354,7 +358,7 @@ sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right) static int hist_entry__cpu_snprintf(struct hist_entry *he, char *bf, size_t size, unsigned int width) { - return repsep_snprintf(bf, size, "%*d", width, he->cpu); + return repsep_snprintf(bf, size, "%*.*d", width, width, he->cpu); } struct sort_entry sort_cpu = { @@ -484,7 +488,7 @@ static int hist_entry__mispredict_snprintf(struct hist_entry *he, char *bf, else if (he->branch_info->flags.mispred) out = "Y"; - return repsep_snprintf(bf, size, "%-*s", width, out); + return repsep_snprintf(bf, size, "%-*.*s", width, width, out); } /* --sort daddr_sym */ @@ -1194,7 +1198,7 @@ bool perf_hpp__same_sort_entry(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b) return hse_a->se == hse_b->se; } -void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists) +void perf_hpp__reset_sort_width(struct perf_hpp_fmt *fmt, struct hists *hists) { struct hpp_sort_entry *hse; @@ -1202,20 +1206,21 @@ void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists) return; hse = container_of(fmt, struct hpp_sort_entry, hpp); - hists__new_col_len(hists, hse->se->se_width_idx, - strlen(hse->se->se_header)); + hists__new_col_len(hists, hse->se->se_width_idx, strlen(fmt->name)); } static int __sort__hpp_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct perf_evsel *evsel) { struct hpp_sort_entry *hse; - size_t len; + size_t len = fmt->user_len; hse = container_of(fmt, struct hpp_sort_entry, hpp); - len = hists__col_len(&evsel->hists, hse->se->se_width_idx); - return scnprintf(hpp->buf, hpp->size, "%*s", len, hse->se->se_header); + if (!len) + len = hists__col_len(evsel__hists(evsel), hse->se->se_width_idx); + + return scnprintf(hpp->buf, hpp->size, "%-*.*s", len, len, fmt->name); } static int __sort__hpp_width(struct perf_hpp_fmt *fmt, @@ -1223,20 +1228,26 @@ static int __sort__hpp_width(struct perf_hpp_fmt *fmt, struct perf_evsel *evsel) { struct hpp_sort_entry *hse; + size_t len = fmt->user_len; hse = container_of(fmt, struct hpp_sort_entry, hpp); - return hists__col_len(&evsel->hists, hse->se->se_width_idx); + if (!len) + len = hists__col_len(evsel__hists(evsel), hse->se->se_width_idx); + + return len; } static int __sort__hpp_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he) { struct hpp_sort_entry *hse; - size_t len; + size_t len = fmt->user_len; hse = container_of(fmt, struct hpp_sort_entry, hpp); - len = hists__col_len(he->hists, hse->se->se_width_idx); + + if (!len) + len = hists__col_len(he->hists, hse->se->se_width_idx); return hse->se->se_snprintf(he, hpp->buf, hpp->size, len); } @@ -1253,6 +1264,7 @@ __sort_dimension__alloc_hpp(struct sort_dimension *sd) } hse->se = sd->entry; + hse->hpp.name = sd->entry->se_header; hse->hpp.header = __sort__hpp_header; hse->hpp.width = __sort__hpp_width; hse->hpp.entry = __sort__hpp_entry; @@ -1265,6 +1277,8 @@ __sort_dimension__alloc_hpp(struct sort_dimension *sd) INIT_LIST_HEAD(&hse->hpp.list); INIT_LIST_HEAD(&hse->hpp.sort_list); hse->hpp.elide = false; + hse->hpp.len = 0; + hse->hpp.user_len = 0; return hse; } @@ -1432,14 +1446,49 @@ static const char *get_default_sort_order(void) return default_sort_orders[sort__mode]; } +static int setup_sort_order(void) +{ + char *new_sort_order; + + /* + * Append '+'-prefixed sort order to the default sort + * order string. + */ + if (!sort_order || is_strict_order(sort_order)) + return 0; + + if (sort_order[1] == '\0') { + error("Invalid --sort key: `+'"); + return -EINVAL; + } + + /* + * We allocate new sort_order string, but we never free it, + * because it's checked over the rest of the code. + */ + if (asprintf(&new_sort_order, "%s,%s", + get_default_sort_order(), sort_order + 1) < 0) { + error("Not enough memory to set up --sort"); + return -ENOMEM; + } + + sort_order = new_sort_order; + return 0; +} + static int __setup_sorting(void) { char *tmp, *tok, *str; - const char *sort_keys = sort_order; + const char *sort_keys; int ret = 0; + ret = setup_sort_order(); + if (ret) + return ret; + + sort_keys = sort_order; if (sort_keys == NULL) { - if (field_order) { + if (is_strict_order(field_order)) { /* * If user specified field order but no sort order, * we'll honor it and not add default sort orders. @@ -1625,23 +1674,36 @@ static void reset_dimensions(void) memory_sort_dimensions[i].taken = 0; } +bool is_strict_order(const char *order) +{ + return order && (*order != '+'); +} + static int __setup_output_field(void) { - char *tmp, *tok, *str; - int ret = 0; + char *tmp, *tok, *str, *strp; + int ret = -EINVAL; if (field_order == NULL) return 0; reset_dimensions(); - str = strdup(field_order); + strp = str = strdup(field_order); if (str == NULL) { error("Not enough memory to setup output fields"); return -ENOMEM; } - for (tok = strtok_r(str, ", ", &tmp); + if (!is_strict_order(field_order)) + strp++; + + if (!strlen(strp)) { + error("Invalid --fields key: `+'"); + goto out; + } + + for (tok = strtok_r(strp, ", ", &tmp); tok; tok = strtok_r(NULL, ", ", &tmp)) { ret = output_field_add(tok); if (ret == -EINVAL) { @@ -1653,6 +1715,7 @@ static int __setup_output_field(void) } } +out: free(str); return ret; } diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index 041f0c9cea2b..c03e4ff8beff 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -218,4 +218,5 @@ void perf_hpp__set_elide(int idx, bool elide); int report_parse_ignore_callees_opt(const struct option *opt, const char *arg, int unset); +bool is_strict_order(const char *order); #endif /* __PERF_SORT_H */ diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c index 2553e5b55b89..6afd6106ceb5 100644 --- a/tools/perf/util/string.c +++ b/tools/perf/util/string.c @@ -9,78 +9,48 @@ */ s64 perf_atoll(const char *str) { - unsigned int i; - s64 length = -1, unit = 1; + s64 length; + char *p; + char c; if (!isdigit(str[0])) goto out_err; - for (i = 1; i < strlen(str); i++) { - switch (str[i]) { - case 'B': - case 'b': - break; - case 'K': - if (str[i + 1] != 'B') - goto out_err; - else - goto kilo; - case 'k': - if (str[i + 1] != 'b') - goto out_err; -kilo: - unit = K; - break; - case 'M': - if (str[i + 1] != 'B') - goto out_err; - else - goto mega; - case 'm': - if (str[i + 1] != 'b') - goto out_err; -mega: - unit = K * K; - break; - case 'G': - if (str[i + 1] != 'B') + length = strtoll(str, &p, 10); + switch (c = *p++) { + case 'b': case 'B': + if (*p) goto out_err; - else - goto giga; - case 'g': - if (str[i + 1] != 'b') - goto out_err; -giga: - unit = K * K * K; + case '\0': + return length; + default: + goto out_err; + /* two-letter suffices */ + case 'k': case 'K': + length <<= 10; break; - case 'T': - if (str[i + 1] != 'B') - goto out_err; - else - goto tera; - case 't': - if (str[i + 1] != 'b') - goto out_err; -tera: - unit = K * K * K * K; + case 'm': case 'M': + length <<= 20; break; - case '\0': /* only specified figures */ - unit = 1; + case 'g': case 'G': + length <<= 30; break; - default: - if (!isdigit(str[i])) - goto out_err; + case 't': case 'T': + length <<= 40; break; - } } - - length = atoll(str) * unit; - goto out; + /* we want the cases to match */ + if (islower(c)) { + if (strcmp(p, "b") != 0) + goto out_err; + } else { + if (strcmp(p, "B") != 0) + goto out_err; + } + return length; out_err: - length = -1; -out: - return length; + return -1; } /* @@ -387,27 +357,3 @@ void *memdup(const void *src, size_t len) return p; } - -/** - * str_append - reallocate string and append another - * @s: pointer to string pointer - * @len: pointer to len (initialized) - * @a: string to append. - */ -int str_append(char **s, int *len, const char *a) -{ - int olen = *s ? strlen(*s) : 0; - int nlen = olen + strlen(a) + 1; - if (*len < nlen) { - *len = *len * 2; - if (*len < nlen) - *len = nlen; - *s = realloc(*s, *len); - if (!*s) - return -ENOMEM; - if (olen == 0) - **s = 0; - } - strcat(*s, a); - return 0; -} diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c index 6a0a13d07a28..283d3e73e2f2 100644 --- a/tools/perf/util/svghelper.c +++ b/tools/perf/util/svghelper.c @@ -30,6 +30,7 @@ static u64 turbo_frequency, max_freq; #define SLOT_MULT 30.0 #define SLOT_HEIGHT 25.0 +#define SLOT_HALF (SLOT_HEIGHT / 2) int svg_page_width = 1000; u64 svg_highlight; @@ -114,8 +115,14 @@ void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end) fprintf(svgfile, " rect { stroke-width: 1; }\n"); fprintf(svgfile, " rect.process { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:1; stroke:rgb( 0, 0, 0); } \n"); fprintf(svgfile, " rect.process2 { fill:rgb(180,180,180); fill-opacity:0.9; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); + fprintf(svgfile, " rect.process3 { fill:rgb(180,180,180); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); fprintf(svgfile, " rect.sample { fill:rgb( 0, 0,255); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); fprintf(svgfile, " rect.sample_hi{ fill:rgb(255,128, 0); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); + fprintf(svgfile, " rect.error { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); + fprintf(svgfile, " rect.net { fill:rgb( 0,128, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); + fprintf(svgfile, " rect.disk { fill:rgb( 0, 0,255); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); + fprintf(svgfile, " rect.sync { fill:rgb(128,128, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); + fprintf(svgfile, " rect.poll { fill:rgb( 0,128,128); fill-opacity:0.2; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); fprintf(svgfile, " rect.blocked { fill:rgb(255, 0, 0); fill-opacity:0.5; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); fprintf(svgfile, " rect.waiting { fill:rgb(224,214, 0); fill-opacity:0.8; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); fprintf(svgfile, " rect.WAITING { fill:rgb(255,214, 48); fill-opacity:0.6; stroke-width:0; stroke:rgb( 0, 0, 0); } \n"); @@ -132,12 +139,81 @@ void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end) fprintf(svgfile, " ]]>\n </style>\n</defs>\n"); } +static double normalize_height(double height) +{ + if (height < 0.25) + return 0.25; + else if (height < 0.50) + return 0.50; + else if (height < 0.75) + return 0.75; + else + return 0.100; +} + +void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges) +{ + double w = time2pixels(end) - time2pixels(start); + height = normalize_height(height); + + if (!svgfile) + return; + + fprintf(svgfile, "<g>\n"); + fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges); + fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n", + time2pixels(start), + w, + Yslot * SLOT_MULT, + SLOT_HALF * height, + type); + fprintf(svgfile, "</g>\n"); +} + +void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges) +{ + double w = time2pixels(end) - time2pixels(start); + height = normalize_height(height); + + if (!svgfile) + return; + + fprintf(svgfile, "<g>\n"); + fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges); + fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n", + time2pixels(start), + w, + Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HALF * height, + SLOT_HALF * height, + type); + fprintf(svgfile, "</g>\n"); +} + +void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges) +{ + double w = time2pixels(end) - time2pixels(start); + height = normalize_height(height); + + if (!svgfile) + return; + + fprintf(svgfile, "<g>\n"); + fprintf(svgfile, "<title>fd=%d error=%d merges=%d</title>\n", fd, err, merges); + fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n", + time2pixels(start), + w, + Yslot * SLOT_MULT + SLOT_HEIGHT - SLOT_HEIGHT * height, + SLOT_HEIGHT * height, + type); + fprintf(svgfile, "</g>\n"); +} + void svg_box(int Yslot, u64 start, u64 end, const char *type) { if (!svgfile) return; - fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n", + fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n", time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type); } @@ -174,7 +250,7 @@ void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace) cpu, time_to_string(end - start)); if (backtrace) fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace); - fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"%s\"/>\n", + fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"%s\"/>\n", time2pixels(start), time2pixels(end)-time2pixels(start), Yslot * SLOT_MULT, SLOT_HEIGHT, type); @@ -186,7 +262,7 @@ void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace) text_size = round_text_size(text_size); if (text_size > MIN_TEXT_SIZE) - fprintf(svgfile, "<text x=\"%1.8f\" y=\"%1.8f\" font-size=\"%1.8fpt\">%i</text>\n", + fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">%i</text>\n", time2pixels(start), Yslot * SLOT_MULT + SLOT_HEIGHT - 1, text_size, cpu + 1); fprintf(svgfile, "</g>\n"); @@ -202,10 +278,10 @@ static char *time_to_string(u64 duration) return text; if (duration < 1000 * 1000) { /* less than 1 msec */ - sprintf(text, "%4.1f us", duration / 1000.0); + sprintf(text, "%.1f us", duration / 1000.0); return text; } - sprintf(text, "%4.1f ms", duration / 1000.0 / 1000); + sprintf(text, "%.1f ms", duration / 1000.0 / 1000); return text; } @@ -233,14 +309,14 @@ void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace) font_size = round_text_size(font_size); - fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT); + fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), Yslot * SLOT_MULT); fprintf(svgfile, "<title>#%d waiting %s</title>\n", cpu, time_to_string(end - start)); if (backtrace) fprintf(svgfile, "<desc>Waiting on:\n%s</desc>\n", backtrace); - fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n", + fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n", time2pixels(end)-time2pixels(start), SLOT_HEIGHT, style); if (font_size > MIN_TEXT_SIZE) - fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%1.8fpt\"> %s</text>\n", + fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\"> %s</text>\n", font_size, text); fprintf(svgfile, "</g>\n"); } @@ -289,16 +365,16 @@ void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq) fprintf(svgfile, "<g>\n"); - fprintf(svgfile, "<rect x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\" class=\"cpu\"/>\n", + fprintf(svgfile, "<rect x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\" class=\"cpu\"/>\n", time2pixels(first_time), time2pixels(last_time)-time2pixels(first_time), cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT); sprintf(cpu_string, "CPU %i", (int)cpu); - fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n", + fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n", 10+time2pixels(first_time), cpu2y(cpu) + SLOT_HEIGHT/2, cpu_string); - fprintf(svgfile, "<text transform=\"translate(%4.8f,%4.8f)\" font-size=\"1.25pt\">%s</text>\n", + fprintf(svgfile, "<text transform=\"translate(%.8f,%.8f)\" font-size=\"1.25pt\">%s</text>\n", 10+time2pixels(first_time), cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - 4, cpu_model()); fprintf(svgfile, "</g>\n"); @@ -319,11 +395,11 @@ void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const c else type = "sample"; - fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu)); + fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\">\n", time2pixels(start), cpu2y(cpu)); fprintf(svgfile, "<title>%d %s running %s</title>\n", pid, name, time_to_string(end - start)); if (backtrace) fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace); - fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n", + fprintf(svgfile, "<rect x=\"0\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n", time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type); width = time2pixels(end)-time2pixels(start); if (width > 6) @@ -332,7 +408,7 @@ void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const c width = round_text_size(width); if (width > MIN_TEXT_SIZE) - fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%3.8fpt\">%s</text>\n", + fprintf(svgfile, "<text transform=\"rotate(90)\" font-size=\"%.8fpt\">%s</text>\n", width, name); fprintf(svgfile, "</g>\n"); @@ -353,7 +429,7 @@ void svg_cstate(int cpu, u64 start, u64 end, int type) type = 6; sprintf(style, "c%i", type); - fprintf(svgfile, "<rect class=\"%s\" x=\"%4.8f\" width=\"%4.8f\" y=\"%4.1f\" height=\"%4.1f\"/>\n", + fprintf(svgfile, "<rect class=\"%s\" x=\"%.8f\" width=\"%.8f\" y=\"%.1f\" height=\"%.1f\"/>\n", style, time2pixels(start), time2pixels(end)-time2pixels(start), cpu2y(cpu), SLOT_MULT+SLOT_HEIGHT); @@ -365,7 +441,7 @@ void svg_cstate(int cpu, u64 start, u64 end, int type) width = round_text_size(width); if (width > MIN_TEXT_SIZE) - fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"%3.8fpt\">C%i</text>\n", + fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"%.8fpt\">C%i</text>\n", time2pixels(start), cpu2y(cpu)+width, width, type); fprintf(svgfile, "</g>\n"); @@ -407,9 +483,9 @@ void svg_pstate(int cpu, u64 start, u64 end, u64 freq) if (max_freq) height = freq * 1.0 / max_freq * (SLOT_HEIGHT + SLOT_MULT); height = 1 + cpu2y(cpu) + SLOT_MULT + SLOT_HEIGHT - height; - fprintf(svgfile, "<line x1=\"%4.8f\" x2=\"%4.8f\" y1=\"%4.1f\" y2=\"%4.1f\" class=\"pstate\"/>\n", + fprintf(svgfile, "<line x1=\"%.8f\" x2=\"%.8f\" y1=\"%.1f\" y2=\"%.1f\" class=\"pstate\"/>\n", time2pixels(start), time2pixels(end), height, height); - fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\" font-size=\"0.25pt\">%s</text>\n", + fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\" font-size=\"0.25pt\">%s</text>\n", time2pixels(start), height+0.9, HzToHuman(freq)); fprintf(svgfile, "</g>\n"); @@ -435,32 +511,32 @@ void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc if (row1 < row2) { if (row1) { - fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", + fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32); if (desc2) - fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n", + fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n", time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT + SLOT_HEIGHT/48, desc2); } if (row2) { - fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", + fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row2 * SLOT_MULT); if (desc1) - fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n", + fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s ></text></g>\n", time2pixels(start), row2 * SLOT_MULT - SLOT_MULT/32, desc1); } } else { if (row2) { - fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", + fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/32); if (desc1) - fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n", + fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n", time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT + SLOT_MULT/48, desc1); } if (row1) { - fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", + fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", time2pixels(start), row1 * SLOT_MULT - SLOT_MULT/32, time2pixels(start), row1 * SLOT_MULT); if (desc2) - fprintf(svgfile, "<g transform=\"translate(%4.8f,%4.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n", + fprintf(svgfile, "<g transform=\"translate(%.8f,%.8f)\"><text transform=\"rotate(90)\" font-size=\"0.02pt\">%s <</text></g>\n", time2pixels(start), row1 * SLOT_MULT - SLOT_HEIGHT/32, desc2); } } @@ -468,7 +544,7 @@ void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc if (row2 > row1) height += SLOT_HEIGHT; if (row1) - fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n", + fprintf(svgfile, "<circle cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n", time2pixels(start), height); fprintf(svgfile, "</g>\n"); @@ -488,16 +564,16 @@ void svg_wakeline(u64 start, int row1, int row2, const char *backtrace) fprintf(svgfile, "<desc>%s</desc>\n", backtrace); if (row1 < row2) - fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", + fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", time2pixels(start), row1 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row2 * SLOT_MULT); else - fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%4.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", + fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%.2f\" style=\"stroke:rgb(32,255,32);stroke-width:0.009\"/>\n", time2pixels(start), row2 * SLOT_MULT + SLOT_HEIGHT, time2pixels(start), row1 * SLOT_MULT); height = row1 * SLOT_MULT; if (row2 > row1) height += SLOT_HEIGHT; - fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n", + fprintf(svgfile, "<circle cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\" style=\"fill:rgb(32,255,32)\"/>\n", time2pixels(start), height); fprintf(svgfile, "</g>\n"); @@ -515,9 +591,9 @@ void svg_interrupt(u64 start, int row, const char *backtrace) if (backtrace) fprintf(svgfile, "<desc>%s</desc>\n", backtrace); - fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n", + fprintf(svgfile, "<circle cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n", time2pixels(start), row * SLOT_MULT); - fprintf(svgfile, "<circle cx=\"%4.8f\" cy=\"%4.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n", + fprintf(svgfile, "<circle cx=\"%.8f\" cy=\"%.2f\" r = \"0.01\" style=\"fill:rgb(255,128,128)\"/>\n", time2pixels(start), row * SLOT_MULT + SLOT_HEIGHT); fprintf(svgfile, "</g>\n"); @@ -528,7 +604,7 @@ void svg_text(int Yslot, u64 start, const char *text) if (!svgfile) return; - fprintf(svgfile, "<text x=\"%4.8f\" y=\"%4.8f\">%s</text>\n", + fprintf(svgfile, "<text x=\"%.8f\" y=\"%.8f\">%s</text>\n", time2pixels(start), Yslot * SLOT_MULT+SLOT_HEIGHT/2, text); } @@ -537,12 +613,26 @@ static void svg_legenda_box(int X, const char *text, const char *style) double boxsize; boxsize = SLOT_HEIGHT / 2; - fprintf(svgfile, "<rect x=\"%i\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\n", + fprintf(svgfile, "<rect x=\"%i\" width=\"%.8f\" y=\"0\" height=\"%.1f\" class=\"%s\"/>\n", X, boxsize, boxsize, style); - fprintf(svgfile, "<text transform=\"translate(%4.8f, %4.8f)\" font-size=\"%4.8fpt\">%s</text>\n", + fprintf(svgfile, "<text transform=\"translate(%.8f, %.8f)\" font-size=\"%.8fpt\">%s</text>\n", X + boxsize + 5, boxsize, 0.8 * boxsize, text); } +void svg_io_legenda(void) +{ + if (!svgfile) + return; + + fprintf(svgfile, "<g>\n"); + svg_legenda_box(0, "Disk", "disk"); + svg_legenda_box(100, "Network", "net"); + svg_legenda_box(200, "Sync", "sync"); + svg_legenda_box(300, "Poll", "poll"); + svg_legenda_box(400, "Error", "error"); + fprintf(svgfile, "</g>\n"); +} + void svg_legenda(void) { if (!svgfile) @@ -559,7 +649,7 @@ void svg_legenda(void) fprintf(svgfile, "</g>\n"); } -void svg_time_grid(void) +void svg_time_grid(double min_thickness) { u64 i; @@ -579,8 +669,10 @@ void svg_time_grid(void) color = 128; } - fprintf(svgfile, "<line x1=\"%4.8f\" y1=\"%4.2f\" x2=\"%4.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%1.3f\"/>\n", - time2pixels(i), SLOT_MULT/2, time2pixels(i), total_height, color, color, color, thickness); + if (thickness >= min_thickness) + fprintf(svgfile, "<line x1=\"%.8f\" y1=\"%.2f\" x2=\"%.8f\" y2=\"%" PRIu64 "\" style=\"stroke:rgb(%i,%i,%i);stroke-width:%.3f\"/>\n", + time2pixels(i), SLOT_MULT/2, time2pixels(i), + total_height, color, color, color, thickness); i += 10000000; } diff --git a/tools/perf/util/svghelper.h b/tools/perf/util/svghelper.h index e3aff5332e30..9292a5291445 100644 --- a/tools/perf/util/svghelper.h +++ b/tools/perf/util/svghelper.h @@ -4,6 +4,9 @@ #include <linux/types.h> extern void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end); +extern void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges); +extern void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges); +extern void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges); extern void svg_box(int Yslot, u64 start, u64 end, const char *type); extern void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace); extern void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace); @@ -16,7 +19,8 @@ extern void svg_cstate(int cpu, u64 start, u64 end, int type); extern void svg_pstate(int cpu, u64 start, u64 end, u64 freq); -extern void svg_time_grid(void); +extern void svg_time_grid(double min_thickness); +extern void svg_io_legenda(void); extern void svg_legenda(void); extern void svg_wakeline(u64 start, int row1, int row2, const char *backtrace); extern void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace); diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index 6864661a79dd..1e23a5bfb044 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -6,6 +6,7 @@ #include <inttypes.h> #include "symbol.h" +#include "machine.h" #include "vdso.h" #include <symbol/kallsyms.h> #include "debug.h" @@ -49,7 +50,8 @@ static inline uint8_t elf_sym__type(const GElf_Sym *sym) static inline int elf_sym__is_function(const GElf_Sym *sym) { - return elf_sym__type(sym) == STT_FUNC && + return (elf_sym__type(sym) == STT_FUNC || + elf_sym__type(sym) == STT_GNU_IFUNC) && sym->st_name != 0 && sym->st_shndx != SHN_UNDEF; } @@ -598,6 +600,8 @@ int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name, goto out_elf_end; } + ss->is_64_bit = (gelf_getclass(elf) == ELFCLASS64); + ss->symtab = elf_section_by_name(elf, &ehdr, &ss->symshdr, ".symtab", NULL); if (ss->symshdr.sh_type != SHT_SYMTAB) @@ -619,7 +623,7 @@ int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name, GElf_Shdr shdr; ss->adjust_symbols = (ehdr.e_type == ET_EXEC || ehdr.e_type == ET_REL || - is_vdso_map(dso->short_name) || + dso__is_vdso(dso) || elf_section_by_name(elf, &ehdr, &shdr, ".gnu.prelink_undo", NULL) != NULL); @@ -677,6 +681,11 @@ static u64 ref_reloc(struct kmap *kmap) return 0; } +static bool want_demangle(bool is_kernel_sym) +{ + return is_kernel_sym ? symbol_conf.demangle_kernel : symbol_conf.demangle; +} + int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss, struct symsrc *runtime_ss, symbol_filter_t filter, int kmodule) @@ -698,6 +707,7 @@ int dso__load_sym(struct dso *dso, struct map *map, bool remap_kernel = false, adjust_kernel_syms = false; dso->symtab_type = syms_ss->type; + dso->is_64_bit = syms_ss->is_64_bit; dso->rel = syms_ss->ehdr.e_type == ET_REL; /* @@ -708,6 +718,14 @@ int dso__load_sym(struct dso *dso, struct map *map, symbols__delete(&dso->symbols[map->type]); if (!syms_ss->symtab) { + /* + * If the vmlinux is stripped, fail so we will fall back + * to using kallsyms. The vmlinux runtime symbols aren't + * of much use. + */ + if (dso->kernel) + goto out_elf_end; + syms_ss->symtab = syms_ss->dynsym; syms_ss->symshdr = syms_ss->dynshdr; } @@ -732,7 +750,7 @@ int dso__load_sym(struct dso *dso, struct map *map, if (symstrs == NULL) goto out_elf_end; - sec_strndx = elf_getscn(elf, ehdr.e_shstrndx); + sec_strndx = elf_getscn(runtime_ss->elf, runtime_ss->ehdr.e_shstrndx); if (sec_strndx == NULL) goto out_elf_end; @@ -912,7 +930,11 @@ int dso__load_sym(struct dso *dso, struct map *map, } curr_dso->symtab_type = dso->symtab_type; map_groups__insert(kmap->kmaps, curr_map); - dsos__add(&dso->node, curr_dso); + /* + * The new DSO should go to the kernel DSOS + */ + dsos__add(&map->groups->machine->kernel_dsos, + curr_dso); dso__set_loaded(curr_dso, map->type); } else curr_dso = curr_map->dso; @@ -934,9 +956,12 @@ new_symbol: * DWARF DW_compile_unit has this, but we don't always have access * to it... */ - if (symbol_conf.demangle) { - demangled = bfd_demangle(NULL, elf_name, - DMGL_PARAMS | DMGL_ANSI); + if (want_demangle(dso->kernel || kmodule)) { + int demangle_flags = DMGL_NO_OPTS; + if (verbose) + demangle_flags = DMGL_PARAMS | DMGL_ANSI; + + demangled = bfd_demangle(NULL, elf_name, demangle_flags); if (demangled != NULL) elf_name = demangled; } @@ -1024,6 +1049,39 @@ int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data, return err; } +enum dso_type dso__type_fd(int fd) +{ + enum dso_type dso_type = DSO__TYPE_UNKNOWN; + GElf_Ehdr ehdr; + Elf_Kind ek; + Elf *elf; + + elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); + if (elf == NULL) + goto out; + + ek = elf_kind(elf); + if (ek != ELF_K_ELF) + goto out_end; + + if (gelf_getclass(elf) == ELFCLASS64) { + dso_type = DSO__TYPE_64BIT; + goto out_end; + } + + if (gelf_getehdr(elf, &ehdr) == NULL) + goto out_end; + + if (ehdr.e_machine == EM_X86_64) + dso_type = DSO__TYPE_X32BIT; + else + dso_type = DSO__TYPE_32BIT; +out_end: + elf_end(elf); +out: + return dso_type; +} + static int copy_bytes(int from, off_t from_offs, int to, off_t to_offs, u64 len) { ssize_t r; diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c index bd15f490d04f..c9541fea9514 100644 --- a/tools/perf/util/symbol-minimal.c +++ b/tools/perf/util/symbol-minimal.c @@ -288,6 +288,44 @@ int dso__synthesize_plt_symbols(struct dso *dso __maybe_unused, return 0; } +static int fd__is_64_bit(int fd) +{ + u8 e_ident[EI_NIDENT]; + + if (lseek(fd, 0, SEEK_SET)) + return -1; + + if (readn(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident)) + return -1; + + if (memcmp(e_ident, ELFMAG, SELFMAG) || + e_ident[EI_VERSION] != EV_CURRENT) + return -1; + + return e_ident[EI_CLASS] == ELFCLASS64; +} + +enum dso_type dso__type_fd(int fd) +{ + Elf64_Ehdr ehdr; + int ret; + + ret = fd__is_64_bit(fd); + if (ret < 0) + return DSO__TYPE_UNKNOWN; + + if (ret) + return DSO__TYPE_64BIT; + + if (readn(fd, &ehdr, sizeof(ehdr)) != sizeof(ehdr)) + return DSO__TYPE_UNKNOWN; + + if (ehdr.e_machine == EM_X86_64) + return DSO__TYPE_X32BIT; + + return DSO__TYPE_32BIT; +} + int dso__load_sym(struct dso *dso, struct map *map __maybe_unused, struct symsrc *ss, struct symsrc *runtime_ss __maybe_unused, @@ -295,6 +333,11 @@ int dso__load_sym(struct dso *dso, struct map *map __maybe_unused, int kmodule __maybe_unused) { unsigned char *build_id[BUILD_ID_SIZE]; + int ret; + + ret = fd__is_64_bit(ss->fd); + if (ret >= 0) + dso->is_64_bit = ret; if (filename__read_build_id(ss->name, build_id, BUILD_ID_SIZE) > 0) { dso__set_build_id(dso, build_id); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 7b9096f29cdb..078331140d8c 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -15,6 +15,7 @@ #include "machine.h" #include "symbol.h" #include "strlist.h" +#include "header.h" #include <elf.h> #include <limits.h> @@ -33,7 +34,9 @@ struct symbol_conf symbol_conf = { .try_vmlinux_path = true, .annotate_src = true, .demangle = true, + .demangle_kernel = false, .cumulate_callchain = true, + .show_hist_headers = true, .symfs = "", }; @@ -183,7 +186,7 @@ void symbols__fixup_end(struct rb_root *symbols) curr = rb_entry(nd, struct symbol, rb_node); if (prev->end == prev->start && prev->end != curr->start) - prev->end = curr->start - 1; + prev->end = curr->start; } /* Last entry */ @@ -204,7 +207,7 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type) for (nd = rb_next(prevnd); nd; nd = rb_next(nd)) { prev = curr; curr = rb_entry(nd, struct map, rb_node); - prev->end = curr->start - 1; + prev->end = curr->start; } /* @@ -226,7 +229,7 @@ struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name) sym = ((void *)sym) + symbol_conf.priv_size; sym->start = start; - sym->end = len ? start + len - 1 : start; + sym->end = len ? start + len : start; sym->binding = binding; sym->namelen = namelen - 1; @@ -322,7 +325,7 @@ static struct symbol *symbols__find(struct rb_root *symbols, u64 ip) if (ip < s->start) n = n->rb_left; - else if (ip > s->end) + else if (ip >= s->end) n = n->rb_right; else return s; @@ -341,6 +344,16 @@ static struct symbol *symbols__first(struct rb_root *symbols) return NULL; } +static struct symbol *symbols__next(struct symbol *sym) +{ + struct rb_node *n = rb_next(&sym->rb_node); + + if (n) + return rb_entry(n, struct symbol, rb_node); + + return NULL; +} + struct symbol_name_rb_node { struct rb_node rb_node; struct symbol sym; @@ -411,11 +424,16 @@ struct symbol *dso__find_symbol(struct dso *dso, return symbols__find(&dso->symbols[type], addr); } -static struct symbol *dso__first_symbol(struct dso *dso, enum map_type type) +struct symbol *dso__first_symbol(struct dso *dso, enum map_type type) { return symbols__first(&dso->symbols[type]); } +struct symbol *dso__next_symbol(struct symbol *sym) +{ + return symbols__next(sym); +} + struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, const char *name) { @@ -507,10 +525,15 @@ struct process_kallsyms_args { struct dso *dso; }; +/* + * These are symbols in the kernel image, so make sure that + * sym is from a kernel DSO. + */ bool symbol__is_idle(struct symbol *sym) { const char * const idle_symbols[] = { "cpu_idle", + "cpu_startup_entry", "intel_idle", "default_idle", "native_safe_halt", @@ -1064,6 +1087,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map, &is_64_bit); if (err) goto out_err; + dso->is_64_bit = is_64_bit; if (list_empty(&md.maps)) { err = -EINVAL; @@ -1451,8 +1475,7 @@ int dso__load_vmlinux(struct dso *dso, struct map *map, if (vmlinux[0] == '/') snprintf(symfs_vmlinux, sizeof(symfs_vmlinux), "%s", vmlinux); else - snprintf(symfs_vmlinux, sizeof(symfs_vmlinux), "%s%s", - symbol_conf.symfs, vmlinux); + symbol__join_symfs(symfs_vmlinux, vmlinux); if (dso->kernel == DSO_TYPE_GUEST_KERNEL) symtab_type = DSO_BINARY_TYPE__GUEST_VMLINUX; @@ -1662,6 +1685,7 @@ do_kallsyms: free(kallsyms_allocated_filename); if (err > 0 && !dso__is_kcore(dso)) { + dso->binary_type = DSO_BINARY_TYPE__KALLSYMS; dso__set_long_name(dso, "[kernel.kallsyms]", false); map__fixup_start(map); map__fixup_end(map); @@ -1709,6 +1733,7 @@ static int dso__load_guest_kernel_sym(struct dso *dso, struct map *map, if (err > 0) pr_debug("Using %s for symbols\n", kallsyms_filename); if (err > 0 && !dso__is_kcore(dso)) { + dso->binary_type = DSO_BINARY_TYPE__GUEST_KALLSYMS; machine__mmap_name(machine, path, sizeof(path)); dso__set_long_name(dso, strdup(path), true); map__fixup_start(map); @@ -1726,12 +1751,13 @@ static void vmlinux_path__exit(void) zfree(&vmlinux_path); } -static int vmlinux_path__init(void) +static int vmlinux_path__init(struct perf_session_env *env) { struct utsname uts; char bf[PATH_MAX]; + char *kernel_version; - vmlinux_path = malloc(sizeof(char *) * 5); + vmlinux_path = malloc(sizeof(char *) * 6); if (vmlinux_path == NULL) return -1; @@ -1744,25 +1770,37 @@ static int vmlinux_path__init(void) goto out_fail; ++vmlinux_path__nr_entries; - /* only try running kernel version if no symfs was given */ + /* only try kernel version if no symfs was given */ if (symbol_conf.symfs[0] != 0) return 0; - if (uname(&uts) < 0) - return -1; + if (env) { + kernel_version = env->os_release; + } else { + if (uname(&uts) < 0) + goto out_fail; - snprintf(bf, sizeof(bf), "/boot/vmlinux-%s", uts.release); + kernel_version = uts.release; + } + + snprintf(bf, sizeof(bf), "/boot/vmlinux-%s", kernel_version); vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); if (vmlinux_path[vmlinux_path__nr_entries] == NULL) goto out_fail; ++vmlinux_path__nr_entries; - snprintf(bf, sizeof(bf), "/lib/modules/%s/build/vmlinux", uts.release); + snprintf(bf, sizeof(bf), "/usr/lib/debug/boot/vmlinux-%s", + kernel_version); + vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); + if (vmlinux_path[vmlinux_path__nr_entries] == NULL) + goto out_fail; + ++vmlinux_path__nr_entries; + snprintf(bf, sizeof(bf), "/lib/modules/%s/build/vmlinux", kernel_version); vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); if (vmlinux_path[vmlinux_path__nr_entries] == NULL) goto out_fail; ++vmlinux_path__nr_entries; snprintf(bf, sizeof(bf), "/usr/lib/debug/lib/modules/%s/vmlinux", - uts.release); + kernel_version); vmlinux_path[vmlinux_path__nr_entries] = strdup(bf); if (vmlinux_path[vmlinux_path__nr_entries] == NULL) goto out_fail; @@ -1808,7 +1846,7 @@ static bool symbol__read_kptr_restrict(void) return value; } -int symbol__init(void) +int symbol__init(struct perf_session_env *env) { const char *symfs; @@ -1823,7 +1861,7 @@ int symbol__init(void) symbol_conf.priv_size += (sizeof(struct symbol_name_rb_node) - sizeof(struct symbol)); - if (symbol_conf.try_vmlinux_path && vmlinux_path__init() < 0) + if (symbol_conf.try_vmlinux_path && vmlinux_path__init(env) < 0) return -1; if (symbol_conf.field_sep && *symbol_conf.field_sep == '.') { diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 615c752dd767..eb2c19bf8d90 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -13,6 +13,7 @@ #include <libgen.h> #include "build-id.h" #include "event.h" +#include "util.h" #ifdef HAVE_LIBELF_SUPPORT #include <libelf.h> @@ -59,6 +60,7 @@ extern Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, #endif #ifndef DMGL_PARAMS +#define DMGL_NO_OPTS 0 /* For readability... */ #define DMGL_PARAMS (1 << 0) /* Include function args */ #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ #endif @@ -93,7 +95,7 @@ void symbols__delete(struct rb_root *symbols); static inline size_t symbol__size(const struct symbol *sym) { - return sym->end - sym->start + 1; + return sym->end - sym->start; } struct strlist; @@ -118,7 +120,9 @@ struct symbol_conf { annotate_src, event_group, demangle, - filter_relative; + demangle_kernel, + filter_relative, + show_hist_headers; const char *vmlinux_name, *kallsyms_name, *source_prefix, @@ -142,6 +146,14 @@ struct symbol_conf { }; extern struct symbol_conf symbol_conf; + +static inline int __symbol__join_symfs(char *bf, size_t size, const char *path) +{ + return path__join(bf, size, symbol_conf.symfs, path); +} + +#define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path) + extern int vmlinux_path__nr_entries; extern char **vmlinux_path; @@ -215,6 +227,7 @@ struct symsrc { GElf_Shdr dynshdr; bool adjust_symbols; + bool is_64_bit; #endif }; @@ -238,6 +251,11 @@ struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, const char *name); +struct symbol *dso__first_symbol(struct dso *dso, enum map_type type); +struct symbol *dso__next_symbol(struct symbol *sym); + +enum dso_type dso__type_fd(int fd); + int filename__read_build_id(const char *filename, void *bf, size_t size); int sysfs__read_build_id(const char *filename, void *bf, size_t size); int modules__parse(const char *filename, void *arg, @@ -246,7 +264,8 @@ int modules__parse(const char *filename, void *arg, int filename__read_debuglink(const char *filename, char *debuglink, size_t size); -int symbol__init(void); +struct perf_session_env; +int symbol__init(struct perf_session_env *env); void symbol__exit(void); void symbol__elf_init(void); struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name); diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 2fde0d5e40b5..2b7b2d91c016 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -7,13 +7,14 @@ #include "util.h" #include "debug.h" #include "comm.h" +#include "unwind.h" int thread__init_map_groups(struct thread *thread, struct machine *machine) { struct thread *leader; pid_t pid = thread->pid_; - if (pid == thread->tid) { + if (pid == thread->tid || pid == -1) { thread->mg = map_groups__new(); } else { leader = machine__findnew_thread(machine, pid, pid); @@ -34,19 +35,24 @@ struct thread *thread__new(pid_t pid, pid_t tid) thread->pid_ = pid; thread->tid = tid; thread->ppid = -1; + thread->cpu = -1; INIT_LIST_HEAD(&thread->comm_list); + if (unwind__prepare_access(thread) < 0) + goto err_thread; + comm_str = malloc(32); if (!comm_str) goto err_thread; snprintf(comm_str, 32, ":%d", tid); - comm = comm__new(comm_str, 0); + comm = comm__new(comm_str, 0, false); free(comm_str); if (!comm) goto err_thread; list_add(&comm->list, &thread->comm_list); + } return thread; @@ -60,12 +66,15 @@ void thread__delete(struct thread *thread) { struct comm *comm, *tmp; - map_groups__put(thread->mg); - thread->mg = NULL; + if (thread->mg) { + map_groups__put(thread->mg); + thread->mg = NULL; + } list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) { list_del(&comm->list); comm__free(comm); } + unwind__finish_access(thread); free(thread); } @@ -78,19 +87,33 @@ struct comm *thread__comm(const struct thread *thread) return list_first_entry(&thread->comm_list, struct comm, list); } +struct comm *thread__exec_comm(const struct thread *thread) +{ + struct comm *comm, *last = NULL; + + list_for_each_entry(comm, &thread->comm_list, list) { + if (comm->exec) + return comm; + last = comm; + } + + return last; +} + /* CHECKME: time should always be 0 if event aren't ordered */ -int thread__set_comm(struct thread *thread, const char *str, u64 timestamp) +int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp, + bool exec) { struct comm *new, *curr = thread__comm(thread); int err; /* Override latest entry if it had no specific time coverage */ - if (!curr->start) { - err = comm__override(curr, str, timestamp); + if (!curr->start && !curr->exec) { + err = comm__override(curr, str, timestamp, exec); if (err) return err; } else { - new = comm__new(str, timestamp); + new = comm__new(str, timestamp, exec); if (!new) return -ENOMEM; list_add(&new->list, &thread->comm_list); @@ -127,12 +150,12 @@ int thread__comm_len(struct thread *thread) size_t thread__fprintf(struct thread *thread, FILE *fp) { return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) + - map_groups__fprintf(thread->mg, verbose, fp); + map_groups__fprintf(thread->mg, fp); } void thread__insert_map(struct thread *thread, struct map *map) { - map_groups__fixup_overlappings(thread->mg, map, verbose, stderr); + map_groups__fixup_overlappings(thread->mg, map, stderr); map_groups__insert(thread->mg, map); } diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h index 3c0c2724f82c..8c75fa774706 100644 --- a/tools/perf/util/thread.h +++ b/tools/perf/util/thread.h @@ -17,6 +17,7 @@ struct thread { pid_t pid_; /* Not all tools update this */ pid_t tid; pid_t ppid; + int cpu; char shortname[3]; bool comm_set; bool dead; /* if set thread has exited */ @@ -37,9 +38,17 @@ static inline void thread__exited(struct thread *thread) thread->dead = true; } -int thread__set_comm(struct thread *thread, const char *comm, u64 timestamp); +int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp, + bool exec); +static inline int thread__set_comm(struct thread *thread, const char *comm, + u64 timestamp) +{ + return __thread__set_comm(thread, comm, timestamp, false); +} + int thread__comm_len(struct thread *thread); struct comm *thread__comm(const struct thread *thread); +struct comm *thread__exec_comm(const struct thread *thread); const char *thread__comm_str(const struct thread *thread); void thread__insert_map(struct thread *thread, struct map *map); int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp); diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c index 5d3215912105..f93b9734735b 100644 --- a/tools/perf/util/thread_map.c +++ b/tools/perf/util/thread_map.c @@ -214,6 +214,17 @@ out_free_threads: goto out; } +struct thread_map *thread_map__new_dummy(void) +{ + struct thread_map *threads = malloc(sizeof(*threads) + sizeof(pid_t)); + + if (threads != NULL) { + threads->map[0] = -1; + threads->nr = 1; + } + return threads; +} + static struct thread_map *thread_map__new_by_tid_str(const char *tid_str) { struct thread_map *threads = NULL, *nt; @@ -224,14 +235,8 @@ static struct thread_map *thread_map__new_by_tid_str(const char *tid_str) struct strlist *slist; /* perf-stat expects threads to be generated even if tid not given */ - if (!tid_str) { - threads = malloc(sizeof(*threads) + sizeof(pid_t)); - if (threads != NULL) { - threads->map[0] = -1; - threads->nr = 1; - } - return threads; - } + if (!tid_str) + return thread_map__new_dummy(); slist = strlist__new(false, tid_str); if (!slist) diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h index 0cd8b3108084..95313f43cc0f 100644 --- a/tools/perf/util/thread_map.h +++ b/tools/perf/util/thread_map.h @@ -9,6 +9,7 @@ struct thread_map { pid_t map[]; }; +struct thread_map *thread_map__new_dummy(void); struct thread_map *thread_map__new_by_pid(pid_t pid); struct thread_map *thread_map__new_by_tid(pid_t tid); struct thread_map *thread_map__new_by_uid(uid_t uid); diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h index 4385816d3d49..f11636966a0f 100644 --- a/tools/perf/util/tool.h +++ b/tools/perf/util/tool.h @@ -40,7 +40,7 @@ struct perf_tool { event_op2 tracing_data; event_op2 finished_round, build_id; - bool ordered_samples; + bool ordered_events; bool ordering_requires_timestamps; }; diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 7e6fcfe8b438..eb72716017ac 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -40,6 +40,7 @@ #include "trace-event.h" #include <api/fs/debugfs.h> #include "evsel.h" +#include "debug.h" #define VERSION "0.5" @@ -191,12 +192,10 @@ static int copy_event_system(const char *sys, struct tracepoint_path *tps) strcmp(dent->d_name, "..") == 0 || !name_in_tp_list(dent->d_name, tps)) continue; - format = malloc(strlen(sys) + strlen(dent->d_name) + 10); - if (!format) { + if (asprintf(&format, "%s/%s/format", sys, dent->d_name) < 0) { err = -ENOMEM; goto out; } - sprintf(format, "%s/%s/format", sys, dent->d_name); ret = stat(format, &st); free(format); if (ret < 0) @@ -217,12 +216,10 @@ static int copy_event_system(const char *sys, struct tracepoint_path *tps) strcmp(dent->d_name, "..") == 0 || !name_in_tp_list(dent->d_name, tps)) continue; - format = malloc(strlen(sys) + strlen(dent->d_name) + 10); - if (!format) { + if (asprintf(&format, "%s/%s/format", sys, dent->d_name) < 0) { err = -ENOMEM; goto out; } - sprintf(format, "%s/%s/format", sys, dent->d_name); ret = stat(format, &st); if (ret >= 0) { @@ -317,12 +314,10 @@ static int record_event_files(struct tracepoint_path *tps) strcmp(dent->d_name, "ftrace") == 0 || !system_in_tp_list(dent->d_name, tps)) continue; - sys = malloc(strlen(path) + strlen(dent->d_name) + 2); - if (!sys) { + if (asprintf(&sys, "%s/%s", path, dent->d_name) < 0) { err = -ENOMEM; goto out; } - sprintf(sys, "%s/%s", path, dent->d_name); ret = stat(sys, &st); if (ret >= 0) { ssize_t size = strlen(dent->d_name) + 1; diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c index e113e180c48f..54d9e9b548a8 100644 --- a/tools/perf/util/trace-event-read.c +++ b/tools/perf/util/trace-event-read.c @@ -22,7 +22,6 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <getopt.h> #include <stdarg.h> #include <sys/types.h> #include <sys/stat.h> @@ -36,6 +35,7 @@ #include "../perf.h" #include "util.h" #include "trace-event.h" +#include "debug.h" static int input_fd; diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c index 57aaccc1692e..5c9bdd1591a9 100644 --- a/tools/perf/util/trace-event-scripting.c +++ b/tools/perf/util/trace-event-scripting.c @@ -30,6 +30,11 @@ struct scripting_context *scripting_context; +static int flush_script_unsupported(void) +{ + return 0; +} + static int stop_script_unsupported(void) { return 0; @@ -74,6 +79,7 @@ static int python_generate_script_unsupported(struct pevent *pevent struct scripting_ops python_scripting_unsupported_ops = { .name = "Python", .start_script = python_start_script_unsupported, + .flush_script = flush_script_unsupported, .stop_script = stop_script_unsupported, .process_event = process_event_unsupported, .generate_script = python_generate_script_unsupported, @@ -137,6 +143,7 @@ static int perl_generate_script_unsupported(struct pevent *pevent struct scripting_ops perl_scripting_unsupported_ops = { .name = "Perl", .start_script = perl_start_script_unsupported, + .flush_script = flush_script_unsupported, .stop_script = stop_script_unsupported, .process_event = process_event_unsupported, .generate_script = perl_generate_script_unsupported, diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index 7b6d68688327..52aaa19e1eb1 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -64,6 +64,7 @@ struct perf_session; struct scripting_ops { const char *name; int (*start_script) (const char *script, int argc, const char **argv); + int (*flush_script) (void); int (*stop_script) (void); void (*process_event) (union perf_event *event, struct perf_sample *sample, diff --git a/tools/perf/util/tsc.c b/tools/perf/util/tsc.c new file mode 100644 index 000000000000..4d4210d4e13d --- /dev/null +++ b/tools/perf/util/tsc.c @@ -0,0 +1,30 @@ +#include <linux/compiler.h> +#include <linux/types.h> + +#include "tsc.h" + +u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc) +{ + u64 t, quot, rem; + + t = ns - tc->time_zero; + quot = t / tc->time_mult; + rem = t % tc->time_mult; + return (quot << tc->time_shift) + + (rem << tc->time_shift) / tc->time_mult; +} + +u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc) +{ + u64 quot, rem; + + quot = cyc >> tc->time_shift; + rem = cyc & ((1 << tc->time_shift) - 1); + return tc->time_zero + quot * tc->time_mult + + ((rem * tc->time_mult) >> tc->time_shift); +} + +u64 __weak rdtsc(void) +{ + return 0; +} diff --git a/tools/perf/util/tsc.h b/tools/perf/util/tsc.h new file mode 100644 index 000000000000..a8b78f1b3243 --- /dev/null +++ b/tools/perf/util/tsc.h @@ -0,0 +1,12 @@ +#ifndef __PERF_TSC_H +#define __PERF_TSC_H + +#include <linux/types.h> + +#include "../arch/x86/util/tsc.h" + +u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc); +u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc); +u64 rdtsc(void); + +#endif diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c index 5ec80a575b50..7419768c38b1 100644 --- a/tools/perf/util/unwind-libdw.c +++ b/tools/perf/util/unwind-libdw.c @@ -3,6 +3,7 @@ #include <elfutils/libdwfl.h> #include <inttypes.h> #include <errno.h> +#include "debug.h" #include "unwind.h" #include "unwind-libdw.h" #include "machine.h" diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c index 25578b98f5c5..e060386165c5 100644 --- a/tools/perf/util/unwind-libunwind.c +++ b/tools/perf/util/unwind-libunwind.c @@ -24,12 +24,14 @@ #include <linux/list.h> #include <libunwind.h> #include <libunwind-ptrace.h> +#include "callchain.h" #include "thread.h" #include "session.h" #include "perf_regs.h" #include "unwind.h" #include "symbol.h" #include "util.h" +#include "debug.h" extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as, @@ -524,12 +526,12 @@ static unw_accessors_t accessors = { .get_proc_name = get_proc_name, }; -static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb, - void *arg, int max_stack) +int unwind__prepare_access(struct thread *thread) { unw_addr_space_t addr_space; - unw_cursor_t c; - int ret; + + if (callchain_param.record_mode != CALLCHAIN_DWARF) + return 0; addr_space = unw_create_addr_space(&accessors, 0); if (!addr_space) { @@ -537,6 +539,33 @@ static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb, return -ENOMEM; } + thread__set_priv(thread, addr_space); + + return 0; +} + +void unwind__finish_access(struct thread *thread) +{ + unw_addr_space_t addr_space; + + if (callchain_param.record_mode != CALLCHAIN_DWARF) + return; + + addr_space = thread__priv(thread); + unw_destroy_addr_space(addr_space); +} + +static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb, + void *arg, int max_stack) +{ + unw_addr_space_t addr_space; + unw_cursor_t c; + int ret; + + addr_space = thread__priv(ui->thread); + if (addr_space == NULL) + return -1; + ret = unw_init_remote(&c, addr_space, ui); if (ret) display_error(ret); @@ -548,7 +577,6 @@ static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb, ret = ip ? entry(ip, ui->thread, ui->machine, cb, arg) : 0; } - unw_destroy_addr_space(addr_space); return ret; } diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h index f03061260b4e..c17c4855bdbc 100644 --- a/tools/perf/util/unwind.h +++ b/tools/perf/util/unwind.h @@ -4,6 +4,7 @@ #include <linux/types.h> #include "event.h" #include "symbol.h" +#include "thread.h" struct unwind_entry { struct map *map; @@ -21,6 +22,15 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg, /* libunwind specific */ #ifdef HAVE_LIBUNWIND_SUPPORT int libunwind__arch_reg_id(int regnum); +int unwind__prepare_access(struct thread *thread); +void unwind__finish_access(struct thread *thread); +#else +static inline int unwind__prepare_access(struct thread *thread __maybe_unused) +{ + return 0; +} + +static inline void unwind__finish_access(struct thread *thread __maybe_unused) {} #endif #else static inline int @@ -33,5 +43,12 @@ unwind__get_entries(unwind_entry_cb_t cb __maybe_unused, { return 0; } + +static inline int unwind__prepare_access(struct thread *thread __maybe_unused) +{ + return 0; +} + +static inline void unwind__finish_access(struct thread *thread __maybe_unused) {} #endif /* HAVE_DWARF_UNWIND_SUPPORT */ #endif /* __UNWIND_H */ diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 95aefa78bb07..d5eab3f3323f 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -1,5 +1,6 @@ #include "../perf.h" #include "util.h" +#include "debug.h" #include <api/fs/fs.h> #include <sys/mman.h> #ifdef HAVE_BACKTRACE_SUPPORT @@ -12,6 +13,15 @@ #include <limits.h> #include <byteswap.h> #include <linux/kernel.h> +#include <unistd.h> +#include "callchain.h" + +struct callchain_param callchain_param = { + .mode = CHAIN_GRAPH_REL, + .min_percent = 0.5, + .order = ORDER_CALLEE, + .key = CCKEY_FUNCTION +}; /* * XXX We need to find a better place for these things... @@ -281,6 +291,18 @@ void get_term_dimensions(struct winsize *ws) ws->ws_col = 80; } +void set_term_quiet_input(struct termios *old) +{ + struct termios tc; + + tcgetattr(0, old); + tc = *old; + tc.c_lflag &= ~(ICANON | ECHO); + tc.c_cc[VMIN] = 0; + tc.c_cc[VTIME] = 0; + tcsetattr(0, TCSANOW, &tc); +} + static void set_tracing_events_path(const char *mountpoint) { snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s", @@ -333,12 +355,9 @@ const char *find_tracing_dir(void) if (!debugfs) return NULL; - tracing = malloc(strlen(debugfs) + 9); - if (!tracing) + if (asprintf(&tracing, "%s/tracing", debugfs) < 0) return NULL; - sprintf(tracing, "%s/tracing", debugfs); - tracing_found = 1; return tracing; } @@ -352,11 +371,9 @@ char *get_tracing_file(const char *name) if (!tracing) return NULL; - file = malloc(strlen(tracing) + strlen(name) + 2); - if (!file) + if (asprintf(&file, "%s/%s", tracing, name) < 0) return NULL; - sprintf(file, "%s/%s", tracing, name); return file; } @@ -447,6 +464,7 @@ int filename__read_str(const char *filename, char **buf, size_t *sizep) size_t size = 0, alloc_size = 0; void *bf = NULL, *nbf; int fd, n, err = 0; + char sbuf[STRERR_BUFSIZE]; fd = open(filename, O_RDONLY); if (fd < 0) @@ -467,8 +485,8 @@ int filename__read_str(const char *filename, char **buf, size_t *sizep) n = read(fd, bf + size, alloc_size - size); if (n < 0) { if (size) { - pr_warning("read failed %d: %s\n", - errno, strerror(errno)); + pr_warning("read failed %d: %s\n", errno, + strerror_r(errno, sbuf, sizeof(sbuf))); err = 0; } else err = -errno; @@ -540,3 +558,39 @@ void mem_bswap_64(void *src, int byte_size) ++m; } } + +bool find_process(const char *name) +{ + size_t len = strlen(name); + DIR *dir; + struct dirent *d; + int ret = -1; + + dir = opendir(procfs__mountpoint()); + if (!dir) + return -1; + + /* Walk through the directory. */ + while (ret && (d = readdir(dir)) != NULL) { + char path[PATH_MAX]; + char *data; + size_t size; + + if ((d->d_type != DT_DIR) || + !strcmp(".", d->d_name) || + !strcmp("..", d->d_name)) + continue; + + scnprintf(path, sizeof(path), "%s/%s/comm", + procfs__mountpoint(), d->d_name); + + if (filename__read_str(path, &data, &size)) + continue; + + ret = strncmp(name, data, len); + free(data); + } + + closedir(dir); + return ret ? false : true; +} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 66864364ccb4..80bfdaa0e2a4 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -39,6 +39,8 @@ #define _ALL_SOURCE 1 #define _BSD_SOURCE 1 +/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */ +#define _DEFAULT_SOURCE 1 #define HAS_BOOL #include <unistd.h> @@ -64,16 +66,18 @@ #include <regex.h> #include <utime.h> #include <sys/wait.h> -#include <sys/poll.h> +#include <poll.h> #include <sys/socket.h> #include <sys/ioctl.h> #include <inttypes.h> +#include <linux/kernel.h> #include <linux/magic.h> #include <linux/types.h> #include <sys/ttydefaults.h> #include <api/fs/debugfs.h> #include <termios.h> #include <linux/bitops.h> +#include <termios.h> extern const char *graph_line; extern const char *graph_dotted_line; @@ -307,6 +311,7 @@ extern unsigned int page_size; extern int cacheline_size; void get_term_dimensions(struct winsize *ws); +void set_term_quiet_input(struct termios *old); struct parse_tag { char tag; @@ -317,6 +322,21 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags); #define SRCLINE_UNKNOWN ((char *) "??:0") +static inline int path__join(char *bf, size_t size, + const char *path1, const char *path2) +{ + return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2); +} + +static inline int path__join3(char *bf, size_t size, + const char *path1, const char *path2, + const char *path3) +{ + return scnprintf(bf, size, "%s%s%s%s%s", + path1, path1[0] ? "/" : "", + path2, path2[0] ? "/" : "", path3); +} + struct dso; char *get_srcline(struct dso *dso, unsigned long addr); @@ -330,4 +350,5 @@ void mem_bswap_64(void *src, int byte_size); void mem_bswap_32(void *src, int byte_size); const char *get_filename_for_perf_kvm(void); +bool find_process(const char *name); #endif /* GIT_COMPAT_UTIL_H */ diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c index 0ddb3b8a89ec..adca69384fcc 100644 --- a/tools/perf/util/vdso.c +++ b/tools/perf/util/vdso.c @@ -11,10 +11,34 @@ #include "vdso.h" #include "util.h" #include "symbol.h" +#include "machine.h" #include "linux/string.h" +#include "debug.h" -static bool vdso_found; -static char vdso_file[] = "/tmp/perf-vdso.so-XXXXXX"; +#define VDSO__TEMP_FILE_NAME "/tmp/perf-vdso.so-XXXXXX" + +struct vdso_file { + bool found; + bool error; + char temp_file_name[sizeof(VDSO__TEMP_FILE_NAME)]; + const char *dso_name; +}; + +struct vdso_info { + struct vdso_file vdso; +}; + +static struct vdso_info *vdso_info__new(void) +{ + static const struct vdso_info vdso_info_init = { + .vdso = { + .temp_file_name = VDSO__TEMP_FILE_NAME, + .dso_name = DSO__NAME_VDSO, + }, + }; + + return memdup(&vdso_info_init, sizeof(vdso_info_init)); +} static int find_vdso_map(void **start, void **end) { @@ -47,7 +71,7 @@ static int find_vdso_map(void **start, void **end) return !found; } -static char *get_file(void) +static char *get_file(struct vdso_file *vdso_file) { char *vdso = NULL; char *buf = NULL; @@ -55,10 +79,10 @@ static char *get_file(void) size_t size; int fd; - if (vdso_found) - return vdso_file; + if (vdso_file->found) + return vdso_file->temp_file_name; - if (find_vdso_map(&start, &end)) + if (vdso_file->error || find_vdso_map(&start, &end)) return NULL; size = end - start; @@ -67,45 +91,78 @@ static char *get_file(void) if (!buf) return NULL; - fd = mkstemp(vdso_file); + fd = mkstemp(vdso_file->temp_file_name); if (fd < 0) goto out; if (size == (size_t) write(fd, buf, size)) - vdso = vdso_file; + vdso = vdso_file->temp_file_name; close(fd); out: free(buf); - vdso_found = (vdso != NULL); + vdso_file->found = (vdso != NULL); + vdso_file->error = !vdso_file->found; return vdso; } -void vdso__exit(void) +void vdso__exit(struct machine *machine) { - if (vdso_found) - unlink(vdso_file); + struct vdso_info *vdso_info = machine->vdso_info; + + if (!vdso_info) + return; + + if (vdso_info->vdso.found) + unlink(vdso_info->vdso.temp_file_name); + + zfree(&machine->vdso_info); } -struct dso *vdso__dso_findnew(struct list_head *head) +static struct dso *vdso__new(struct machine *machine, const char *short_name, + const char *long_name) { - struct dso *dso = dsos__find(head, VDSO__MAP_NAME, true); + struct dso *dso; + dso = dso__new(short_name); + if (dso != NULL) { + dsos__add(&machine->user_dsos, dso); + dso__set_long_name(dso, long_name, false); + } + + return dso; +} + +struct dso *vdso__dso_findnew(struct machine *machine, + struct thread *thread __maybe_unused) +{ + struct vdso_info *vdso_info; + struct dso *dso; + + if (!machine->vdso_info) + machine->vdso_info = vdso_info__new(); + + vdso_info = machine->vdso_info; + if (!vdso_info) + return NULL; + + dso = dsos__find(&machine->user_dsos, DSO__NAME_VDSO, true); if (!dso) { char *file; - file = get_file(); + file = get_file(&vdso_info->vdso); if (!file) return NULL; - dso = dso__new(VDSO__MAP_NAME); - if (dso != NULL) { - dsos__add(head, dso); - dso__set_long_name(dso, file, false); - } + dso = vdso__new(machine, DSO__NAME_VDSO, file); } return dso; } + +bool dso__is_vdso(struct dso *dso) +{ + return !strcmp(dso->short_name, DSO__NAME_VDSO); +} diff --git a/tools/perf/util/vdso.h b/tools/perf/util/vdso.h index 0f76e7caf6f8..af9d6929a215 100644 --- a/tools/perf/util/vdso.h +++ b/tools/perf/util/vdso.h @@ -7,12 +7,21 @@ #define VDSO__MAP_NAME "[vdso]" +#define DSO__NAME_VDSO "[vdso]" + static inline bool is_vdso_map(const char *filename) { return !strcmp(filename, VDSO__MAP_NAME); } -struct dso *vdso__dso_findnew(struct list_head *head); -void vdso__exit(void); +struct dso; + +bool dso__is_vdso(struct dso *dso); + +struct machine; +struct thread; + +struct dso *vdso__dso_findnew(struct machine *machine, struct thread *thread); +void vdso__exit(struct machine *machine); #endif /* __PERF_VDSO__ */ |