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authorMasami Hiramatsu <mhiramat@redhat.com>2010-04-12 13:16:53 -0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-04-14 17:26:04 -0300
commit48481938b02471d505296d7557ed296eb093d496 (patch)
tree7549d861d76621d1e3d2ddd75eae4575901f1fd0 /tools/perf/builtin-probe.c
parentfcd1498405c2c88ac632e7c3c3fce3213d9196db (diff)
downloadop-kernel-dev-48481938b02471d505296d7557ed296eb093d496.zip
op-kernel-dev-48481938b02471d505296d7557ed296eb093d496.tar.gz
perf probe: Support argument name
Set given names to event arguments. The syntax is same as kprobe-tracer, you can add 'NAME=' right before each argument. e.g. ./perf probe vfs_read foo=file then, 'foo' is set to the argument name as below. ./perf probe -l probe:vfs_read (on vfs_read@linux-2.6-tip/fs/read_write.c with foo) Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20100412171653.3790.74624.stgit@localhost6.localdomain6> Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-probe.c')
-rw-r--r--tools/perf/builtin-probe.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index bfc47ff..daf4668 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -142,9 +142,9 @@ static const struct option options[] = {
OPT_CALLBACK('a', "add", NULL,
#ifdef DWARF_SUPPORT
"[EVENT=]FUNC[@SRC][+OFF|%return|:RL|;PT]|SRC:AL|SRC;PT"
- " [ARG ...]",
+ " [[NAME=]ARG ...]",
#else
- "[EVENT=]FUNC[+OFF|%return] [ARG ...]",
+ "[EVENT=]FUNC[+OFF|%return] [[NAME=]ARG ...]",
#endif
"probe point definition, where\n"
"\t\tGROUP:\tGroup name (optional)\n"
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