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perf tools: Basic support for CGROUP event

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Implement basic functionality to support cgroup tracking.  Each cgroup
can be identified by inode number which can be read from userspace too.
The actual cgroup processing will come in the later patch.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
[ fix perf test failure on sampling parsing ]
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200325124536.2800725-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2020-03-25 21:45:30 +09:00
committed by Arnaldo Carvalho de Melo
parent 49f550ea87
commit ba78c1c546
13 changed files with 74 additions and 1 deletions
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7
tools/lib/perf/include/perf/event.h
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@@ -105,6 +105,12 @@ struct perf_record_bpf_event {
__u8 tag[BPF_TAG_SIZE]; // prog tag
};
struct perf_record_cgroup {
struct perf_event_header header;
__u64 id;
char path[PATH_MAX];
};
struct perf_record_sample {
struct perf_event_header header;
__u64 array[];
@@ -352,6 +358,7 @@ union perf_event {
struct perf_record_mmap2 mmap2;
struct perf_record_comm comm;
struct perf_record_namespaces namespaces;
struct perf_record_cgroup cgroup;
struct perf_record_fork fork;
struct perf_record_lost lost;
struct perf_record_lost_samples lost_samples;