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

From: Arnaldo Carvalho de Melo
Date: Wed Sep 21 2022 - 18:26:16 EST


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@xxxxxxxxxx>

----------------------------------------------------------------
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