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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-05-01 14:23:18 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-01 15:23:44 +0400 |
| commit | 585e3374d9d29376c2c37d821c8b7637dd48ca95 (patch) | |
| tree | 475ce31aa831f186ddb8416a29548996a8ded2cf | |
| parent | 63a809a2dc53b91268dd915bbcbd425063893676 (diff) | |
| download | linux-585e3374d9d29376c2c37d821c8b7637dd48ca95.tar.xz | |
perf_counter: tool: handle 0-length data files
Avoid perf-report barfing on 0-length data files.
[ Impact: fix perf-report SIGBUS ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090501102533.196245693@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | Documentation/perf_counter/perf-report.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/perf_counter/perf-report.cc b/Documentation/perf_counter/perf-report.cc index 933a07544534..911d7f3e7a65 100644 --- a/Documentation/perf_counter/perf-report.cc +++ b/Documentation/perf_counter/perf-report.cc @@ -402,6 +402,11 @@ int main(int argc, char *argv[]) exit(-1); } + if (!stat.st_size) { + fprintf(stderr, "zero-sized file, nothing to do!\n"); + exit(0); + } + load_kallsyms(); remap: |