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authorJohannes Weiner <hannes@cmpxchg.org>2009-06-24 15:08:36 -0400
committerIngo Molnar <mingo@elte.hu>2009-06-25 05:35:58 -0400
commit76c64c5e4c47b6d28deb3cae8dfa07a93c2229dc (patch)
treea970aa801aa903dd58aa53ac75c5caa7f4c9ab9c
parent1b173f77dd0d5fd4f0ff18034aaa79e30da068b9 (diff)
perf record: Fix filemap pathname parsing in /proc/pid/maps
Looking backward for the first space from the end of a line in /proc/pid/maps does not find the start of the pathname of the mapped file if it contains a space. Since the only slashes we have in this file occur in the (absolute!) pathname column of file mappings, looking for the first slash in a line is a safe method to find the name. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Stefani Seibold <stefani@seibold.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20090624190835.GA25548@cmpxchg.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--tools/perf/builtin-record.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index d7ebbd757543..9b899ba1b410 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -306,12 +306,11 @@ static void pid_synthesize_mmap_samples(pid_t pid)
306 continue; 306 continue;
307 pbf += n + 3; 307 pbf += n + 3;
308 if (*pbf == 'x') { /* vm_exec */ 308 if (*pbf == 'x') { /* vm_exec */
309 char *execname = strrchr(bf, ' '); 309 char *execname = strchr(bf, '/');
310 310
311 if (execname == NULL || execname[1] != '/') 311 if (execname == NULL)
312 continue; 312 continue;
313 313
314 execname += 1;
315 size = strlen(execname); 314 size = strlen(execname);
316 execname[size - 1] = '\0'; /* Remove \n */ 315 execname[size - 1] = '\0'; /* Remove \n */
317 memcpy(mmap_ev.filename, execname, size); 316 memcpy(mmap_ev.filename, execname, size);