linux/tools/perf/trace, branch v5.8

perf beauty: Add support to STATX_MNT_ID in the 'statx' syscall 'mask' argument

2020-06-09T15:40:03Z

Introduced in: fa2fcf4f1df1 ("statx: add mount ID") Cc: Adrian Hunter Cc: Jiri Olsa Cc: Miklos Szeredi Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf beauty: Allow the CC used in the arch errno names script to acccept CFLAGS

2020-05-28T13:03:26Z

Allow the CC compiler to accept a CFLAGS environment variable. This doesn't change the code generated but makes it easier to integrate running the shell script in build systems like bazel. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexios Zavras Cc: Andi Kleen Cc: Greg Kroah-Hartman Cc: Igor Lubashev Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Mathieu Poirier Cc: Namhyung Kim Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Wei Li Link: http://lore.kernel.org/lkml/20200306071110.130202-4-irogers@google.com [ split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo

perf trace: Fix the selection for architectures to generate the errno name tables

2020-05-28T13:03:26Z

Make the architecture test directory agree with the code comment. Committer notes: This was split from a larger patch. The code was assuming the developer always worked from tools/perf/, so make sure we do the test -d having $toolsdir/perf/arch/$arch, to match the intent expressed in the comment, just above that loop. Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Alexios Zavras Cc: Andi Kleen Cc: Greg Kroah-Hartman Cc: Igor Lubashev Cc: Jiri Olsa Cc: Kan Liang Cc: Mark Rutland Cc: Mathieu Poirier Cc: Namhyung Kim Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Wei Li Link: http://lore.kernel.org/lkml/20200306071110.130202-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync linux/mman.h with the kernel

2020-04-14T12:04:53Z

To get the changes in: e346b3813067 ("mm/mremap: add MREMAP_DONTUNMAP to mremap()") Add that to 'perf trace's mremap 'flags' decoder. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/mman.h' differs from latest version at 'include/uapi/linux/mman.h' diff -u tools/include/uapi/linux/mman.h include/uapi/linux/mman.h Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Cc: Brian Geffon Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync sched.h with the kernel

2020-04-14T12:01:08Z

To get the changes in: ef2c41cf38a7 ("clone3: allow spawning processes into cgroups") Add that to 'perf trace's clone 'flags' decoder. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/sched.h' differs from latest version at 'include/uapi/linux/sched.h' diff -u tools/include/uapi/linux/sched.h include/uapi/linux/sched.h Cc: Adrian Hunter Cc: Christian Brauner Cc: Jiri Olsa Cc: Namhyung Kim Cc: Tejun Heo Signed-off-by: Arnaldo Carvalho de Melo

perf beauty prctl: Export the 'options' strarray

2020-02-11T19:41:50Z

So that we can use it with strtoul, allowing string to number conversions in filter expressions. Cc: Adrian Hunter Cc: Christian Brauner Cc: Jiri Olsa Cc: Mike Christie Cc: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo

perf beauty sockaddr: Fix augmented syscall format warning

2020-01-14T15:42:26Z

The sockaddr related examples given in `tools/perf/examples/bpf/augmented_syscalls.c` almost always use `long`s to represent most of their fields. However, `size_t syscall_arg__scnprintf_sockaddr(..)` has a `scnprintf` call that uses `"%#x"` as format string. This throws a warning (whenever the syscall argument is `unsigned long`). Added `l` identifier to indicate that the `arg->value` is an unsigned long. Not sure about the complications of this with x86 though. Signed-off-by: Cengiz Can Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200113174438.102975-1-cengiz@kernel.wtf Signed-off-by: Arnaldo Carvalho de Melo

perf beauty: Add CLEAR_SIGHAND support for clone's flags arg

2019-12-02T18:19:52Z

Add support for the recently added CLONE_CLEAR_SIGHAND flag. This takes advantage of the copy of the uapi/linux/sched.h we have in tools/include, which allows us to build tools/perf in older systems and have the binary support printing that flag whenever that system gets its kernel updated to one where this feature is present. Cc: Adrian Hunter Cc: Adrian Reber Cc: Christian Brauner Cc: Jiri Olsa Cc: Namhyung Kim

perf trace: Wire up strarray__strtoul_flags()

2019-10-19T18:35:02Z

Now anything that uses STRARRAY_FLAGS, like the 'fsmount' syscall will support mapping or-ed strings back to a value that can be used in a filter. In some cases, where STRARRAY_FLAGS isn't used but instead the scnprintf is a special one because of specific needs, like for mmap, then one has to set the ->pars to the strarray. See the next cset. Cc: Adrian Hunter Cc: Andi Kleen Cc: Brendan Gregg Cc: David Ahern Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-r2lpqo7dfsrhi4ll0npsb3u7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libbeauty: Introduce strarray__strtoul_flags()

2019-10-19T18:35:02Z

Counterpart of strarray__scnprintf_flags(), i.e. from a expression like: # perf trace -e syscalls:sys_enter_mmap --filter="flags==PRIVATE|FIXED|DENYWRITE" I.e. that "flags==PRIVATE|FIXED|DENYWRITE", turn that into # perf trace -e syscalls:sys_enter_mmap --filter=0x812 Cc: Adrian Hunter Cc: Andi Kleen Cc: Brendan Gregg Cc: David Ahern Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-8xst3zrqqogax7fmfzwymvbl@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo