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| author | Arnaldo Carvalho de Melo | 2015-07-22 21:16:16 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2015-07-24 03:01:38 +0200 |
| commit | 706c3da409dfc6964740ac503c040c4c621954fd (patch) | |
| tree | c6acc23c94d7b10cc2f9bc949fb16df074ea472f /tools/perf | |
| parent | perf symbols: Provide libtraceevent callback to resolve kernel symbols (diff) | |
| download | kernel-qcow2-linux-706c3da409dfc6964740ac503c040c4c621954fd.tar.gz kernel-qcow2-linux-706c3da409dfc6964740ac503c040c4c621954fd.tar.xz kernel-qcow2-linux-706c3da409dfc6964740ac503c040c4c621954fd.zip | |
perf trace: Provide libtracevent with a kernel symbol resolver
So that beautifiers wanting to resolve kernel function addresses to
names can do its work, now, for instance, the 'timer' tracepoints
beautifiers works with 'perf trace', see the "function=tick..." part:
# perf trace --event timer:hrtimer_start
<SNIP>
0.000 timer:hrtimer_start:hrtimer=0xffff88026f3101c0 function=tick_sched_timer/0x0 expires=52098339000000 softexpires=52098339000000)
0.003 timer:hrtimer_start:hrtimer=0xffff88026f3101c0 function=tick_sched_timer/0x0 expires=52098339000000 softexpires=52098339000000)
<SNIP>
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/n/tip-n4i0hxpbl1tnleiqkok47fw2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-trace.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 32b4d280af4f..282841b10f24 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1489,6 +1489,9 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist) if (trace->host == NULL) return -ENOMEM; + if (trace_event__register_resolver(trace->host) < 0) + return -errno; + err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target, evlist->threads, trace__tool_process, false, trace->opts.proc_map_timeout); |