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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2016-03-08 10:38:44 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-03-31 10:52:24 -0300 |
| commit | 46bc29b970f0011a9099077f1db8f3540aa829fe (patch) | |
| tree | 938c97e15993470419809aa90273f7311e2180d6 /tools/perf/builtin-inject.c | |
| parent | perf trace: Pretty print getrandom() args (diff) | |
| download | wireguard-linux-46bc29b970f0011a9099077f1db8f3540aa829fe.tar.xz wireguard-linux-46bc29b970f0011a9099077f1db8f3540aa829fe.zip | |
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/builtin-inject.c')
| -rw-r--r-- | tools/perf/builtin-inject.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index d1a2d104f2bc..e5afa8fe1bf1 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -748,6 +748,7 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) .auxtrace_info = perf_event__repipe_op2_synth, .auxtrace = perf_event__repipe_auxtrace, .auxtrace_error = perf_event__repipe_op2_synth, + .time_conv = perf_event__repipe_op2_synth, .finished_round = perf_event__repipe_oe_synth, .build_id = perf_event__repipe_op2_synth, .id_index = perf_event__repipe_op2_synth, |