linux/tools/lib/traceevent, branch v4.11

scripts/spelling.txt: add "overide" pattern and fix typo instances

2017-03-10T01:01:09Z

Fix typos and add the following to the scripts/spelling.txt: overide||override While we are here, fix the doubled "address" in the touched line Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt. Also, fix the comment block style in the touched hunks in drivers/media/dvb-frontends/drx39xyj/drx_driver.h. Link: http://lkml.kernel.org/r/1481573103-11329-21-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-02-28T19:38:18Z

Pull perf fixes from Ingo Molnar: "Misc fixes on the kernel and tooling side - nothing in particular stands out" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) perf/core: Fix the perf_cpu_time_max_percent check perf/core: Fix perf_event_enable_on_exec() timekeeping (again) perf/core: Remove confusing comment and move put_ctx() perf record: Honor --quiet option properly perf annotate: Add -q/--quiet option perf diff: Add -q/--quiet option perf report: Add -q/--quiet option perf utils: Check verbose flag properly perf utils: Add perf_quiet_option() perf record: Add -a as default target perf stat: Add -a as default target perf tools: Fail on using multiple bits long terms without value perf tools: Move new_term arguments into struct parse_events_term template perf build: Add special fixdep cleaning rule perf tools: Replace _SC_NPROCESSORS_CONF with max_present_cpu in cpu_topology_map perf header: Make build_cpu_topology skip offline/absent CPUs perf cpumap: Add cpu__max_present_cpu() perf session: Fix DEBUG=1 build with clang tools lib traceevent: It's preempt not prempt perf python: Filter out -specs=/a/b/c from the python binding cc options ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2017-02-22T18:15:09Z

Pull networking updates from David Miller: "Highlights: 1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini Varadhan. 2) Simplify classifier state on sk_buff in order to shrink it a bit. From Willem de Bruijn. 3) Introduce SIPHASH and it's usage for secure sequence numbers and syncookies. From Jason A. Donenfeld. 4) Reduce CPU usage for ICMP replies we are going to limit or suppress, from Jesper Dangaard Brouer. 5) Introduce Shared Memory Communications socket layer, from Ursula Braun. 6) Add RACK loss detection and allow it to actually trigger fast recovery instead of just assisting after other algorithms have triggered it. From Yuchung Cheng. 7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot. 8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert. 9) Export MPLS packet stats via netlink, from Robert Shearman. 10) Significantly improve inet port bind conflict handling, especially when an application is restarted and changes it's setting of reuseport. From Josef Bacik. 11) Implement TX batching in vhost_net, from Jason Wang. 12) Extend the dummy device so that VF (virtual function) features, such as configuration, can be more easily tested. From Phil Sutter. 13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric Dumazet. 14) Add new bpf MAP, implementing a longest prefix match trie. From Daniel Mack. 15) Packet sample offloading support in mlxsw driver, from Yotam Gigi. 16) Add new aquantia driver, from David VomLehn. 17) Add bpf tracepoints, from Daniel Borkmann. 18) Add support for port mirroring to b53 and bcm_sf2 drivers, from Florian Fainelli. 19) Remove custom busy polling in many drivers, it is done in the core networking since 4.5 times. From Eric Dumazet. 20) Support XDP adjust_head in virtio_net, from John Fastabend. 21) Fix several major holes in neighbour entry confirmation, from Julian Anastasov. 22) Add XDP support to bnxt_en driver, from Michael Chan. 23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan. 24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi. 25) Support GRO in IPSEC protocols, from Steffen Klassert" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits) Revert "ath10k: Search SMBIOS for OEM board file extension" net: socket: fix recvmmsg not returning error from sock_error bnxt_en: use eth_hw_addr_random() bpf: fix unlocking of jited image when module ronx not set arch: add ARCH_HAS_SET_MEMORY config net: napi_watchdog() can use napi_schedule_irqoff() tcp: Revert "tcp: tcp_probe: use spin_lock_bh()" net/hsr: use eth_hw_addr_random() net: mvpp2: enable building on 64-bit platforms net: mvpp2: switch to build_skb() in the RX path net: mvpp2: simplify MVPP2_PRS_RI_* definitions net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT net: mvpp2: remove unused register definitions net: mvpp2: simplify mvpp2_bm_bufs_add() net: mvpp2: drop useless fields in mvpp2_bm_pool and related code net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue' net: mvpp2: release reference to txq_cpu[] entry after unmapping net: mvpp2: handle too large value in mvpp2_rx_time_coal_set() net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set() net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set ...

tools lib traceevent: It's preempt not prempt

2017-02-17T13:31:44Z

Fix the typo of the function name pevent_data_prempt_count() Signed-off-by: Steven Rostedt Fixes: c52d9e4e677b ("tools lib traceevent: Add retrieval of preempt count and latency flags") Link: http://lkml.kernel.org/r/20170216201352.469c99de@grimm.local.home Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent plugin function: Initialize 'index' variable

2017-02-13T20:22:33Z

Detected with clang: CC /tmp/build/perf/plugin_function.o plugin_function.c:145:6: warning: variable 'index' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] if (parent && ftrace_indent->set) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ plugin_function.c:148:29: note: uninitialized use occurs here trace_seq_printf(s, "%*s", index*3, ""); ^~~~~ plugin_function.c:145:2: note: remove the 'if' if its condition is always true if (parent && ftrace_indent->set) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ plugin_function.c:145:6: warning: variable 'index' is used uninitialized whenever '&&' condition is false [-Wsometimes-uninitialized] if (parent && ftrace_indent->set) ^~~~~~ plugin_function.c:148:29: note: uninitialized use occurs here trace_seq_printf(s, "%*s", index*3, ""); ^~~~~ plugin_function.c:145:6: note: remove the '&&' if its condition is always true if (parent && ftrace_indent->set) ^~~~~~~~~ plugin_function.c:133:11: note: initialize the variable 'index' to silence this warning int index; ^ = 0 2 warnings generated. Reviewed-by: Steven Rostedt (VMware) Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-b5wyjocel55gorl2jq2cbxrr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Initialize lenght on OLD_RING_BUFFER_TYPE_TIME_STAMP

2017-02-13T20:22:32Z

A undefined value was being used for the OLD_RING_BUFFER_TYPE_TIME_STAMP case entry, as the 'length' variable was not being initialized, fix it. Caught by the reporter when building tools/perf/ using clang, which emmitted this warning: kbuffer-parse.c:312:7: warning: variable 'length' is used uninitialized whenever switch case is taken [-Wsometimes-uninitialized] case OLD_RINGBUF_TYPE_TIME_EXTEND: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ kbuffer-parse.c:339:29: note: uninitialized use occurs here kbuf->next = kbuf->index + length; ^~~~~~ kbuffer-parse.c:297:21: note: initialize the variable 'length' to silence this warning unsigned int length; ^ = 0 Reported-by: Arnaldo Carvalho de Melo Signed-off-by: Steven Rostedt Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/r/20170213121418.47f279e8@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Robustify do_generate_dynamic_list_file

2017-02-08T13:27:45Z

The dynamic-list-file used to export dynamic symbols introduced in commit e3d09ec8126f ("tools lib traceevent: Export dynamic symbols used by traceevent plugins") is generated without any sort of error checking. I experienced problems due to an old version of nm (v 0.158) that outputs in a format distinct from the assumed by the script. Robustify the built of dynamic symbol list by enforcing that the second column of $(NM) -u is either "U" (Undefined), "W" or "w" (undefined weak), which are the possible outputs from non-ancient $(NM) versions. Print an error if format is unexpected. v2: Accept "W" and "w" symbol options. Signed-off-by: David Carrillo-Cisneros Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: He Kuang Cc: Jiri Olsa Cc: Michal Marek Cc: Paul Turner Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Uwe Kleine-König Cc: Wang Nan Link: http://lkml.kernel.org/r/20170208052840.112182-1-davidcc@google.com [ Use STRING1 = STRING1 instead of == to make this work on Ubuntu systems ] Signed-off-by: Arnaldo Carvalho de Melo

lib, traceevent: add PRINT_HEX_STR variant

2017-01-25T18:17:47Z

Add support for the __print_hex_str() macro that was added for tracing, so that user space tools such as perf can understand it as well. Signed-off-by: Daniel Borkmann Cc: Steven Rostedt Cc: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller

Merge tag 'perf-urgent-for-mingo-4.10-20170104' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

2017-01-05T07:33:02Z

Pull perf/urgent fixes and one improvement from Arnaldo Carvalho de Melo: Fixes: - Fix prev/next_prio formatting for deadline tasks in libtraceevent (Daniel Bristot de Oliveira) - Robustify reading of build-ids from /sys/kernel/note (Arnaldo Carvalho de Melo) - Fix building some sample/bpf in Alpine Linux 3.4 (Arnaldo Carvalho de Melo) - Fix 'make install-bin' to install libtraceevent plugins (Arnaldo Carvalho de Melo) - Fix 'perf record --switch-output' documentation and comment (Jiri Olsa) - Fix 'perf probe' for cross arch probing (Masami Hiramatsu) Improvement: - Show total scheduling time in 'perf sched timehist' (Namhyumg Kim) Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Fix prev/next_prio for deadline tasks

2017-01-03T19:11:12Z

Currently, the sched:sched_switch tracepoint reports deadline tasks with priority -1. But when reading the trace via perf script I've got the following output: # ./d & # (d is a deadline task, see [1]) # perf record -e sched:sched_switch -a sleep 1 # perf script ... swapper 0 [000] 2146.962441: sched:sched_switch: swapper/0:0 [120] R ==> d:2593 [4294967295] d 2593 [000] 2146.972472: sched:sched_switch: d:2593 [4294967295] R ==> g:2590 [4294967295] The task d reports the wrong priority [4294967295]. This happens because the "int prio" is stored in an unsigned long long val. Although it is set as a %lld, as int is shorter than unsigned long long, trace_seq_printf prints it as a positive number. The fix is just to cast the val as an int, and print it as a %d, as in the sched:sched_switch tracepoint's "format". The output with the fix is: # ./d & # perf record -e sched:sched_switch -a sleep 1 # perf script ... swapper 0 [000] 4306.374037: sched:sched_switch: swapper/0:0 [120] R ==> d:10941 [-1] d 10941 [000] 4306.383823: sched:sched_switch: d:10941 [-1] R ==> swapper/0:0 [120] [1] d.c --- #include #include #include #include #include struct sched_attr { __u32 size, sched_policy; __u64 sched_flags; __s32 sched_nice; __u32 sched_priority; __u64 sched_runtime, sched_deadline, sched_period; }; int sched_setattr(pid_t pid, const struct sched_attr *attr, unsigned int flags) { return syscall(__NR_sched_setattr, pid, attr, flags); } int main(void) { struct sched_attr attr = { .size = sizeof(attr), .sched_policy = SCHED_DEADLINE, /* This creates a 10ms/30ms reservation */ .sched_runtime = 10 * 1000 * 1000, .sched_period = attr.sched_deadline = 30 * 1000 * 1000, }; if (sched_setattr(0, &attr, 0) < 0) { perror("sched_setattr"); return -1; } for(;;); } --- Committer notes: Got the program from the provided URL, http://bristot.me/lkml/d.c, trimmed it and included in the cset log above, so that we have everything needed to test it in one place. Signed-off-by: Daniel Bristot de Oliveira Acked-by: Steven Rostedt Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Daniel Bristot de Oliveira Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/866ef75bcebf670ae91c6a96daa63597ba981f0d.1483443552.git.bristot@redhat.com Signed-off-by: Arnaldo Carvalho de Melo