linux-kernel - [GIT PULL] perf tools changes for v6.0: 4th batch

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Message-Id: <20220921222600.29851-1-acme@kernel.org>
Date:   Wed, 21 Sep 2022 23:26:00 +0100
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        Kate Carcia <kcarcia@...hat.com>, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Dao <dqminh@...udflare.com>,
        Leo Yan <leo.yan@...aro.org>, Lieven Hey <lieven.hey@...b.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [GIT PULL] perf tools changes for v6.0: 4th batch

Hi Linus,

	Please consider pulling,

Best regards,

- Arnaldo

The following changes since commit 60891ec99e141b74544d11e897a245ef06263052:

  Merge tag 'for-6.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux (2022-09-20 10:23:24 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-tools-fixes-for-v6.0-2022-09-21

for you to fetch changes up to 999e4eaa4b3691acf85d094836260ec4b66c74fd:

  perf tools: Honor namespace when synthesizing build-ids (2022-09-21 16:08:00 -0300)

----------------------------------------------------------------
perf tools fixes for v6.0: 4th batch

- Fix polling of system-wide events related to mixing per-cpu and per-thread
  events.

- Do not check if /proc/modules is unchanged when copying /proc/kcore,
  that doesn't get in the way of post processing analysis.

- Include program header in ELF files generated for JIT files, so that they can
  be opened by tools using elfutils libraries.

- Enter namespaces when synthesizing build-ids.

- Fix some bugs related to a recent cpu_map overhaul where we should be
  using an index and not the cpu number.

- Fix BPF program ELF section name, using the naming expected by libbpf when
  using BPF counters in 'perf stat'.

- Add a new test for perf stat cgroup BPF counter.

- Adjust check on 'perf test wp' for older kernels, where the
  PERF_EVENT_IOC_MODIFY_ATTRIBUTES ioctl isn't supported.

- Sync x86 cpufeatures with the kernel sources, no changes in tooling.

Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>

----------------------------------------------------------------
Adrian Hunter (3):
      perf record: Fix cpu mask bit setting for mixed mmaps
      libperf evlist: Fix polling of system-wide events
      perf kcore_copy: Do not check /proc/modules is unchanged

Arnaldo Carvalho de Melo (1):
      tools headers cpufeatures: Sync with the kernel sources

Lieven Hey (1):
      perf jit: Include program header in ELF files

Namhyung Kim (6):
      perf stat: Fix BPF program section name
      perf stat: Fix cpu map index in bperf cgroup code
      perf stat: Use evsel->core.cpus to iterate cpus in BPF cgroup counters
      perf test: Add a new test for perf stat cgroup BPF counter
      perf test: Skip wp modify test on old kernels
      perf tools: Honor namespace when synthesizing build-ids

 tools/arch/x86/include/asm/cpufeatures.h         |  5 +-
 tools/lib/perf/evlist.c                          |  5 +-
 tools/perf/builtin-record.c                      |  2 +
 tools/perf/tests/shell/stat_bpf_counters_cgrp.sh | 83 ++++++++++++++++++++++++
 tools/perf/tests/wp.c                            | 10 ++-
 tools/perf/util/bpf_counter_cgroup.c             | 10 +--
 tools/perf/util/bpf_skel/bperf_cgroup.bpf.c      |  2 +-
 tools/perf/util/genelf.c                         | 14 ++++
 tools/perf/util/genelf.h                         |  4 ++
 tools/perf/util/symbol-elf.c                     |  7 +-
 tools/perf/util/synthetic-events.c               | 17 ++++-
 11 files changed, 139 insertions(+), 20 deletions(-)
 create mode 100755 tools/perf/tests/shell/stat_bpf_counters_cgrp.sh