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sources/perf: Include the sample identifier in PERF_RECORD_SAMPLE.

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If we want to start watching other perf events, we need a way to look
up what perf event we got when a PERF_RECORD_SAMPLE comes in.  The
sample identifier is what does that.
This commit is contained in:
Eric Anholt
2018-05-16 09:37:41 +01:00
committed by Christian Hergert
parent 83b75e6528
commit 925dadce82
2 changed files with 2 additions and 0 deletions
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1
lib/sources/sp-perf-counter.h
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@ -81,6 +81,7 @@ typedef struct
typedef struct typedef struct
{ {
struct perf_event_header header; struct perf_event_header header;
guint64 identifier;
guint64 ip; guint64 ip;
guint32 pid; guint32 pid;
guint32 tid; guint32 tid;

1
lib/sources/sp-perf-source.c
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@ -291,6 +291,7 @@ sp_perf_source_start_pid (SpPerfSource *self,
attr.sample_type = PERF_SAMPLE_IP attr.sample_type = PERF_SAMPLE_IP
| PERF_SAMPLE_TID | PERF_SAMPLE_TID
| PERF_SAMPLE_IDENTIFIER
| PERF_SAMPLE_CALLCHAIN | PERF_SAMPLE_CALLCHAIN
| PERF_SAMPLE_TIME; | PERF_SAMPLE_TIME;
attr.wakeup_events = N_WAKEUP_EVENTS; attr.wakeup_events = N_WAKEUP_EVENTS;