From 9ede473cc9f655f8a10cfc8ebbf04c48d84db7ee Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 10 Oct 2012 17:38:13 +0200 Subject: 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 Acked-by: Namhyung Kim Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-0tgdoln5rwk3wocshb442cl3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evsel.c | 30 ++++++++++++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-) (limited to 'tools/perf/util/evsel.c') 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) { -- cgit v1.2.3