perf_counter: Synthesize VDSO mmap event

perf record synthesizes mmap events for the running process.
Right now it just catches file mappings, but we can check for
the vdso symbol and add that too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090716104817.517264409@samba.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Anton Blanchard 2009-07-16 15:44:29 +02:00 committed by Ingo Molnar
parent 413ee3b48a
commit 11b5f81e1b
1 changed files with 4 additions and 0 deletions

View File

@ -313,6 +313,10 @@ static void pid_synthesize_mmap_samples(pid_t pid)
if (*pbf == 'x') { /* vm_exec */
char *execname = strchr(bf, '/');
/* Catch VDSO */
if (execname == NULL)
execname = strstr(bf, "[vdso]");
if (execname == NULL)
continue;