From: Anton Blanchard <anton@samba.org>
To: a.p.zijlstra@chello.nl, mingo@elte.hu, paulus@samba.org,
fweisbec@gmail.com
Cc: linux-kernel@vger.kernel.org
Subject: [patch 2/5] perf_counter: Synthesize VDSO mmap event
Date: Thu, 16 Jul 2009 20:42:49 +1000 [thread overview]
Message-ID: <20090716104817.517264409@samba.org> (raw)
In-Reply-To: 20090716104247.536695580@samba.org
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>
---
Only tested on PowerPC, but I assume x86 has the same issue.
Index: linux.trees.git/tools/perf/builtin-record.c
===================================================================
--- linux.trees.git.orig/tools/perf/builtin-record.c 2009-07-13 12:33:49.000000000 +1000
+++ linux.trees.git/tools/perf/builtin-record.c 2009-07-13 13:25:00.000000000 +1000
@@ -313,6 +313,10 @@
if (*pbf == 'x') { /* vm_exec */
char *execname = strchr(bf, '/');
+ /* Catch VDSO */
+ if (execname == NULL)
+ execname = strstr(bf, "[vdso]");
+
if (execname == NULL)
continue;
--
next prev parent reply other threads:[~2009-07-16 10:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-16 10:42 [patch 0/5] Various perfcounter fixes Anton Blanchard
2009-07-16 10:42 ` [patch 1/5] perf_counter: Make sure we dont leak kernel memory to userspace Anton Blanchard
2009-07-18 9:50 ` [tip:perfcounters/urgent] " tip-bot for Anton Blanchard
2009-07-16 10:42 ` Anton Blanchard [this message]
2009-07-18 9:50 ` [tip:perfcounters/urgent] perf_counter: Synthesize VDSO mmap event tip-bot for Anton Blanchard
2009-07-16 10:42 ` [patch 3/5] perf_counter: Log vfork as a fork event Anton Blanchard
2009-07-18 9:50 ` [tip:perfcounters/urgent] " tip-bot for Anton Blanchard
2009-07-16 10:42 ` [patch 4/5] perf_counter: Add perf record option to log addresses Anton Blanchard
2009-07-18 9:50 ` [tip:perfcounters/urgent] " tip-bot for Anton Blanchard
2009-07-16 10:42 ` [patch 5/5] perf_counter: Make call graph option consistent Anton Blanchard
2009-07-16 14:49 ` Frederic Weisbecker
2009-07-18 9:50 ` [tip:perfcounters/urgent] " tip-bot for Anton Blanchard
2009-07-16 14:16 ` [patch 0/5] Various perfcounter fixes Peter Zijlstra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090716104817.517264409@samba.org \
--to=anton@samba.org \
--cc=a.p.zijlstra@chello.nl \
--cc=fweisbec@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.