diff options
| author |   Jiri Olsa <jolsa@kernel.org> | 2016-01-20 12:56:32 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-01-26 11:52:43 -0300 |
| commit | 403567217d3fa5d4801f820317ada52e5c5f0e53 (patch) | |
| tree | 763bb6022b244a28eb7f64da660e450c014b3d24 /tools/perf/util/util.c | |
| parent | perf pmu: Fix misleadingly indented assignment (whitespace) (diff) | |
| download | wireguard-linux-403567217d3fa5d4801f820317ada52e5c5f0e53.tar.xz wireguard-linux-403567217d3fa5d4801f820317ada52e5c5f0e53.zip | |
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/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index ead9509835d2..7a2da7ef556e 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -691,3 +691,13 @@ out: return tip; } + +bool is_regular_file(const char *file) +{ + struct stat st; + + if (stat(file, &st)) + return false; + + return S_ISREG(st.st_mode); +} |