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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2010-04-12 13:16:53 -0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-04-14 17:26:04 -0300 |
| commit | 48481938b02471d505296d7557ed296eb093d496 (patch) | |
| tree | 7549d861d76621d1e3d2ddd75eae4575901f1fd0 /tools/perf/builtin-probe.c | |
| parent | fcd1498405c2c88ac632e7c3c3fce3213d9196db (diff) | |
| download | lwn-48481938b02471d505296d7557ed296eb093d496.tar.gz lwn-48481938b02471d505296d7557ed296eb093d496.zip | |
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.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c index bfc47fff9c59..daf4668d2de0 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" |