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authorMasami Hiramatsu <mhiramat@redhat.com>2009-12-01 03:20:17 +0300
committerIngo Molnar <mingo@elte.hu>2009-12-01 10:20:02 +0300
commit4de189fe6e5ad8241f6f8709d2e2ba4c3aeae33a (patch)
treeba4d4d6771df1a7d92bd7f8d0c2bce6369e67124 /tools/perf/builtin-probe.c
parente1c01d61a98703fcc80d15b8068ec36d5a215f7e (diff)
downloadlinux-4de189fe6e5ad8241f6f8709d2e2ba4c3aeae33a.tar.xz
perf probe: Add --list option for listing current probe events
Add --list option for listing currently defined probe events in the kernel. This shows events in below format; [group:event] <perf-probe probe-definition> for example: [probe:schedule_0] schedule+30 cpu Note that source file/line information is not supported yet. So even if you added a probe by line, it will be shown in <symbol+offset>. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jason Baron <jbaron@redhat.com> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20091201002017.10235.76575.stgit@harusame> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-probe.c')
-rw-r--r--tools/perf/builtin-probe.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index bf20df2e816d..b5d15cf25471 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -62,6 +62,8 @@ static struct {
struct probe_point probes[MAX_PROBES];
} session;
+static bool listing;
+
/* Parse an event definition. Note that any error must die. */
static void parse_probe_event(const char *str)
{
@@ -119,6 +121,7 @@ static int open_default_vmlinux(void)
static const char * const probe_usage[] = {
"perf probe [<options>] 'PROBEDEF' ['PROBEDEF' ...]",
"perf probe [<options>] --add 'PROBEDEF' [--add 'PROBEDEF' ...]",
+ "perf probe --list",
NULL
};
@@ -129,6 +132,7 @@ static const struct option options[] = {
OPT_STRING('k', "vmlinux", &session.vmlinux, "file",
"vmlinux/module pathname"),
#endif
+ OPT_BOOLEAN('l', "list", &listing, "list up current probes"),
OPT_CALLBACK('a', "add", NULL,
#ifdef NO_LIBDWARF
"FUNC[+OFFS|%return] [ARG ...]",
@@ -164,9 +168,15 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
for (i = 0; i < argc; i++)
parse_probe_event(argv[i]);
- if (session.nr_probe == 0)
+ if ((session.nr_probe == 0 && !listing) ||
+ (session.nr_probe != 0 && listing))
usage_with_options(probe_usage, options);
+ if (listing) {
+ show_perf_probe_events();
+ return 0;
+ }
+
if (session.need_dwarf)
#ifdef NO_LIBDWARF
die("Debuginfo-analysis is not supported");