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| author | Jiri Olsa <jolsa@kernel.org> | 2016-01-20 14:56:32 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-01-26 17:52:43 +0300 |
| commit | 403567217d3fa5d4801f820317ada52e5c5f0e53 (patch) | |
| tree | 763bb6022b244a28eb7f64da660e450c014b3d24 /tools/perf/util/dso.c | |
| parent | d85ce830eef6c10d1e9617172dea4681f02b8424 (diff) | |
| download | linux-403567217d3fa5d4801f820317ada52e5c5f0e53.tar.xz | |
perf symbols: Do not read symbols/data from device files
With mem sampling we could get data source within mapped device file.
Processing such sample would block during report phase on trying to read
the device file.
Chacking for device files and skip the processing if it's detected.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1453290995-18485-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/dso.c')
| -rw-r--r-- | tools/perf/util/dso.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index e8e9a9dbf5e3..8e6395439ca0 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -52,6 +52,11 @@ int dso__read_binary_type_filename(const struct dso *dso, debuglink--; if (*debuglink == '/') debuglink++; + + ret = -1; + if (!is_regular_file(filename)) + break; + ret = filename__read_debuglink(filename, debuglink, size - (debuglink - filename)); } |