diff options
| author | Jiri Olsa <jolsa@redhat.com> | 2012-10-10 17:38:13 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-08-07 17:35:20 -0300 |
| commit | 9ede473cc9f655f8a10cfc8ebbf04c48d84db7ee (patch) | |
| tree | 7a05d71c33eaab621009296d5964534c6c31088c /tools/perf/util/evsel.c | |
| parent | e2b5abe0c82b45980b95ead22678861a2013c0df (diff) | |
| download | lwn-9ede473cc9f655f8a10cfc8ebbf04c48d84db7ee.tar.gz lwn-9ede473cc9f655f8a10cfc8ebbf04c48d84db7ee.zip | |
perf tools: Add support for parsing PERF_SAMPLE_READ sample type
Adding support to parse out the PERF_SAMPLE_READ sample bits. The code
contains both single and group format specification.
This code parse out and prepare PERF_SAMPLE_READ data into the
perf_sample struct. It will be used for group leader sampling feature
comming in shortly.
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-0tgdoln5rwk3wocshb442cl3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 8bed0c1a1399..9ab8fff74e30 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1096,8 +1096,34 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, } if (type & PERF_SAMPLE_READ) { - fprintf(stderr, "PERF_SAMPLE_READ is unsupported for now\n"); - return -1; + u64 read_format = evsel->attr.read_format; + + if (read_format & PERF_FORMAT_GROUP) + data->read.group.nr = *array; + else + data->read.one.value = *array; + + array++; + + if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) { + data->read.time_enabled = *array; + array++; + } + + if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) { + data->read.time_running = *array; + array++; + } + + /* PERF_FORMAT_ID is forced for PERF_SAMPLE_READ */ + if (read_format & PERF_FORMAT_GROUP) { + data->read.group.values = (struct sample_read_value *) array; + array = (void *) array + data->read.group.nr * + sizeof(struct sample_read_value); + } else { + data->read.one.id = *array; + array++; + } } if (type & PERF_SAMPLE_CALLCHAIN) { |