diff options
| author | Alexander Shishkin <[email protected]> | 2015-01-14 14:18:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-04-02 17:14:12 +0200 |
| commit | 68db7e98c3a6ebe7284b6cf14906ed7c55f3f7f0 (patch) | |
| tree | aff39ee8c8f8703e262768397610c5949fd93f48 /include/uapi/linux | |
| parent | bed5b25ad9c8a2f5d735ef0bc746ec870c01c1b0 (diff) | |
perf: Add AUX record
When there's new data in the AUX space, output a record indicating its
offset and size and a set of flags, such as PERF_AUX_FLAG_TRUNCATED, to
mean the described data was truncated to fit in the ring buffer.
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Kaixu Xia <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Robert Richter <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/1421237903-181015-7-git-send-email-alexander.shishkin@linux.intel.com
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/perf_event.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index 6c5013a71714..8904ad3a850b 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -768,6 +768,20 @@ enum perf_event_type { */ PERF_RECORD_MMAP2 = 10, + /* + * Records that new data landed in the AUX buffer part. + * + * struct { + * struct perf_event_header header; + * + * u64 aux_offset; + * u64 aux_size; + * u64 flags; + * struct sample_id sample_id; + * }; + */ + PERF_RECORD_AUX = 11, + PERF_RECORD_MAX, /* non-ABI */ }; @@ -785,6 +799,11 @@ enum perf_callchain_context { PERF_CONTEXT_MAX = (__u64)-4095, }; +/** + * PERF_RECORD_AUX::flags bits + */ +#define PERF_AUX_FLAG_TRUNCATED 0x01 /* record was truncated to fit */ + #define PERF_FLAG_FD_NO_GROUP (1UL << 0) #define PERF_FLAG_FD_OUTPUT (1UL << 1) #define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */ |