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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2009-12-07 12:00:53 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-07 18:33:21 +0100 |
| commit | 849884508ecbe2d220131840e4cc7c32ca24ebe3 (patch) | |
| tree | de705b4ffa5adbf329f232d2a2d1fcbde73de0aa /tools | |
| parent | e1d2017b24fb31602f1128e6a8b2afc54c9283cd (diff) | |
| download | blackbird-obmc-linux-849884508ecbe2d220131840e4cc7c32ca24ebe3.tar.gz blackbird-obmc-linux-849884508ecbe2d220131840e4cc7c32ca24ebe3.zip | |
perf probe: Check e_snprintf() format string
Check e_snprintf() format string by gcc, and fix a bug of
e_snprintf() caller.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091207170053.19230.7690.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/probe-event.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index de0d91385c91..88e180449933 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -48,6 +48,9 @@ /* If there is no space to write, returns -E2BIG. */ static int e_snprintf(char *str, size_t size, const char *format, ...) + __attribute__((format(printf, 3, 4))); + +static int e_snprintf(char *str, size_t size, const char *format, ...) { int ret; va_list ap; @@ -258,7 +261,7 @@ int synthesize_perf_probe_event(struct probe_point *pp) ret = e_snprintf(buf, MAX_CMDLEN, "%s%s%s%s", pp->function, offs, pp->retprobe ? "%return" : "", line); else - ret = e_snprintf(buf, MAX_CMDLEN, "%s%s%s%s", pp->file, line); + ret = e_snprintf(buf, MAX_CMDLEN, "%s%s", pp->file, line); if (ret <= 0) goto error; len = ret; |
