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perf machine: Add machine__thread_exec_comm()

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Add machine__thread_exec_comm() to return the comm that matches the last
exec, if the comm_exec flag is present, or the last comm otherwise.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406786474-9306-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2014-07-31 09:00:45 +03:00
committed by Arnaldo Carvalho de Melo
parent 65de51f93e
commit cfe1c41405
3 changed files with 53 additions and 1 deletions
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24
tools/perf/util/session.c
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@@ -67,6 +67,25 @@ static void perf_session__destroy_kernel_maps(struct perf_session *session)
machines__destroy_kernel_maps(&session->machines);
}
static bool perf_session__has_comm_exec(struct perf_session *session)
{
struct perf_evsel *evsel;
evlist__for_each(session->evlist, evsel) {
if (evsel->attr.comm_exec)
return true;
}
return false;
}
static void perf_session__set_comm_exec(struct perf_session *session)
{
bool comm_exec = perf_session__has_comm_exec(session);
machines__set_comm_exec(&session->machines, comm_exec);
}
struct perf_session *perf_session__new(struct perf_data_file *file,
bool repipe, struct perf_tool *tool)
{
@@ -90,6 +109,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
goto out_close;
perf_session__set_id_hdr_size(session);
perf_session__set_comm_exec(session);
}
}
@@ -866,8 +886,10 @@ static s64 perf_session__process_user_event(struct perf_session *session,
switch (event->header.type) {
case PERF_RECORD_HEADER_ATTR:
err = tool->attr(tool, event, &session->evlist);
if (err == 0)
if (err == 0) {
perf_session__set_id_hdr_size(session);
perf_session__set_comm_exec(session);
}
return err;
case PERF_RECORD_HEADER_EVENT_TYPE:
/*