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authorAdrian Hunter <adrian.hunter@intel.com>2016-03-08 10:38:44 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-03-31 10:52:24 -0300
commit46bc29b970f0011a9099077f1db8f3540aa829fe (patch)
tree938c97e15993470419809aa90273f7311e2180d6 /tools/perf/util/event.c
parent39878d492c049796202b70dc0ef14449cafa3cb4 (diff)
downloadop-kernel-dev-46bc29b970f0011a9099077f1db8f3540aa829fe.zip
op-kernel-dev-46bc29b970f0011a9099077f1db8f3540aa829fe.tar.gz
perf tools: Add time conversion event
Intel PT uses the time members from the perf_event_mmap_page to convert between TSC and perf time. Due to a lack of foresight when Intel PT was implemented, those time members were recorded in the (implementation dependent) AUXTRACE_INFO event, the structure of which is generally inaccessible outside of the Intel PT decoder. However now the conversion between TSC and perf time is needed when processing a jitdump file when Intel PT has been used for tracing. So add a user event to record the time members. 'perf record' will synthesize the event if the information is available. And session processing will put a copy of the event on the session so that tools like 'perf inject' can easily access it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1457426324-30158-1-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/event.c')
-rw-r--r--tools/perf/util/event.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index dad55d0..b68959037 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -45,6 +45,7 @@ static const char *perf_event__names[] = {
[PERF_RECORD_STAT] = "STAT",
[PERF_RECORD_STAT_ROUND] = "STAT_ROUND",
[PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE",
+ [PERF_RECORD_TIME_CONV] = "TIME_CONV",
};
const char *perf_event__name(unsigned int id)
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