Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 10/18] perf trace: Provide libtracevent with a kernel symbol resolver | Date | Thu, 23 Jul 2015 22:58:23 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
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> --- tools/perf/builtin-trace.c | 3 +++ 1 file changed, 3 insertions(+)
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); -- 2.1.0
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