diff options
| author |   Jiri Olsa <jolsa@redhat.com> | 2012-04-04 19:32:27 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-08-07 17:35:20 -0300 |
| commit | e2b5abe0c82b45980b95ead22678861a2013c0df (patch) | |
| tree | 24f1f9f6ecec3ced62743453cb4323f5104bc458 /tools/perf/util/evlist.h | |
| parent | perf: Do not get values from disabled counters in group format read (diff) | |
| download | linux-dev-e2b5abe0c82b45980b95ead22678861a2013c0df.tar.xz linux-dev-e2b5abe0c82b45980b95ead22678861a2013c0df.zip | |
perf evlist: Use PERF_EVENT_IOC_ID perf ioctl to read event id
Changing the way we retrieve the event ID. Instead of parsing out
the ID out of the read data, using the PERF_EVENT_IOC_ID ioctl.
Keeping the old way in place to support kernels without
PERF_EVENT_IOC_ID ioctl support.
This will be useful for retrieving the event ID for events
with PERF_FORMAT_GROUP read format set, where it's impossible
to get correct event id out of the read call data.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-psgb4n7kte8e6tfenbe7nj2h@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.h')
0 files changed, 0 insertions, 0 deletions