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authorMasami Hiramatsu <mhiramat@redhat.com>2009-12-09 01:02:47 +0300
committerIngo Molnar <mingo@elte.hu>2009-12-09 09:26:51 +0300
commita9b495b0d35859971d6896293f6d0a0d880c7dfb (patch)
tree61bf1d42c54fedab2038897b34ef3c648418bdb3 /tools
parent278498d438781426d8f315b65f7bca023a26fcc0 (diff)
downloadlinux-a9b495b0d35859971d6896293f6d0a0d880c7dfb.tar.xz
perf probe: Change probe-added message more user-friendly
Change probe-added message more user-friendly expression and show usage of new events. Before: Added new event: p:probe/schedule_0 schedule+10 prev=%ax cpu=%bx After: Added new event: probe:schedule_1 (on schedule+1 with prev cpu) You can now use it on all perf tools, such as: perf record -e probe:schedule_1 -a sleep 1 Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> 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: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> LKML-Reference: <20091208220247.10142.91642.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/probe-event.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index a20e38273243..2c4d3017441b 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -453,17 +453,13 @@ static struct strlist *get_perf_event_names(int fd)
return sl;
}
-static int write_trace_kprobe_event(int fd, const char *buf)
+static void write_trace_kprobe_event(int fd, const char *buf)
{
int ret;
ret = write(fd, buf, strlen(buf));
if (ret <= 0)
die("Failed to create event.");
- else
- printf("Added new event: %s\n", buf);
-
- return ret;
}
static void get_new_event_name(char *buf, size_t len, const char *base,
@@ -503,10 +499,19 @@ void add_trace_kprobe_events(struct probe_point *probes, int nr_probes)
PERFPROBE_GROUP, event,
pp->probes[i]);
write_trace_kprobe_event(fd, buf);
+ printf("Added new event:\n");
+ /* Get the first parameter (probe-point) */
+ sscanf(pp->probes[i], "%s", buf);
+ show_perf_probe_event(PERFPROBE_GROUP, event,
+ buf, pp);
/* Add added event name to namelist */
strlist__add(namelist, event);
}
}
+ /* Show how to use the event. */
+ printf("\nYou can now use it on all perf tools, such as:\n\n");
+ printf("\tperf record -e %s:%s -a sleep 1\n\n", PERFPROBE_GROUP, event);
+
strlist__delete(namelist);
close(fd);
}