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perf evlist: Introduce id_hdr_size method out of perf_session

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We will need this when not using perf_session in cases like 'perf top'
and strace where no perf.data file is created nor consumed.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-za923wjc41q5xot5vrhuhj3j@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2011-11-11 22:28:50 -02:00
parent d04b35f808
commit 81e36bffad
3 changed files with 34 additions and 28 deletions
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29
tools/perf/util/session.c
View file

@ -78,39 +78,12 @@ out_close:
return -1;
}
static void perf_session__id_header_size(struct perf_session *session)
{
struct perf_sample *data;
u64 sample_type = session->sample_type;
u16 size = 0;
if (!session->sample_id_all)
goto out;
if (sample_type & PERF_SAMPLE_TID)
size += sizeof(data->tid) * 2;
if (sample_type & PERF_SAMPLE_TIME)
size += sizeof(data->time);
if (sample_type & PERF_SAMPLE_ID)
size += sizeof(data->id);
if (sample_type & PERF_SAMPLE_STREAM_ID)
size += sizeof(data->stream_id);
if (sample_type & PERF_SAMPLE_CPU)
size += sizeof(data->cpu) * 2;
out:
session->id_hdr_size = size;
}
void perf_session__update_sample_type(struct perf_session *self)
{
self->sample_type = perf_evlist__sample_type(self->evlist);
self->sample_size = __perf_evsel__sample_size(self->sample_type);
self->sample_id_all = perf_evlist__sample_id_all(self->evlist);
perf_session__id_header_size(self);
self->id_hdr_size = perf_evlist__id_hdr_size(self->evlist);
}
int perf_session__create_kernel_maps(struct perf_session *self)