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| author |   Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2014-08-14 02:22:36 +0000 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-08-15 10:58:35 -0300 |
| commit | 6e81c74cbf4b64620170da14844f1dc8a9a5950f (patch) | |
| tree | ce4d4d23f34959965a4cae5e48355de1b40f4063 /tools/perf/util/evsel.c | |
| parent | perf probe: Make error messages thread-safe (diff) | |
| download | linux-dev-6e81c74cbf4b64620170da14844f1dc8a9a5950f.tar.xz linux-dev-6e81c74cbf4b64620170da14844f1dc8a9a5950f.zip | |
perf util: Replace strerror with strerror_r for thread-safety
Replaces all strerror with strerror_r in util for making the perf lib
thread-safe.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naohiro Aota <naota@elisp.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20140814022236.3545.3367.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 01ce14c3575e..b38de5819323 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -2027,6 +2027,8 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err, int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target, int err, char *msg, size_t size) { + char sbuf[STRERR_BUFSIZE]; + switch (err) { case EPERM: case EACCES: @@ -2072,8 +2074,9 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target, } return scnprintf(msg, size, - "The sys_perf_event_open() syscall returned with %d (%s) for event (%s). \n" + "The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n" "/bin/dmesg may provide additional information.\n" "No CONFIG_PERF_EVENTS=y kernel support configured?\n", - err, strerror(err), perf_evsel__name(evsel)); + err, strerror_r(err, sbuf, sizeof(sbuf)), + perf_evsel__name(evsel)); } |