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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2011-05-21 19:33:04 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2011-05-22 03:38:36 +0200 |
| commit | a285412479b6d5af3e48273a92ec2f1987df8cd1 (patch) | |
| tree | 29f68684cebb26b86c3dd0b0f0fc4e5d6553c989 /tools/perf/builtin-test.c | |
| parent | 74429964d8e29c0107fa6e9cdf35b8f33f57405d (diff) | |
| download | linux-a285412479b6d5af3e48273a92ec2f1987df8cd1.tar.bz2 | |
perf tools: Pre-check sample size before parsing
Check that the total size of the sample fields having a fixed
size do not exceed the one of the whole event. This robustifies
the sample parsing.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Diffstat (limited to 'tools/perf/builtin-test.c')
| -rw-r--r-- | tools/perf/builtin-test.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 11e3c8458362..44d7df280430 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -474,6 +474,7 @@ static int test__basic_mmap(void) unsigned int nr_events[nsyscalls], expected_nr_events[nsyscalls], i, j; struct perf_evsel *evsels[nsyscalls], *evsel; + int sample_size = perf_sample_size(attr.sample_type); for (i = 0; i < nsyscalls; ++i) { char name[64]; @@ -558,7 +559,8 @@ static int test__basic_mmap(void) goto out_munmap; } - perf_event__parse_sample(event, attr.sample_type, false, &sample); + perf_event__parse_sample(event, attr.sample_type, sample_size, + false, &sample); evsel = perf_evlist__id2evsel(evlist, sample.id); if (evsel == NULL) { pr_debug("event with id %" PRIu64 |