perf script: Print callchains and symbols if they exist (80b8b496) · Commits · 戴 / test

The intent of perf-script is to dump the events and information in the file. H/W, S/W and raw events all dump callchains if they are present; might as well make that the default for tracepoints too. v2: Only add options for sym, dso and ip if callchains are present Signed-off-by:

David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1384920457-5986-1-git-send-email-dsahern@gmail.com Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-script.c

+24 −0

Original line number	Diff line number	Diff line
		@@ -280,6 +280,30 @@ static int perf_session__check_output_opt(struct perf_session *session)
		set_print_ip_opts(&evsel->attr);
		}

		/*
		* set default for tracepoints to print symbols only
		* if callchains are present
		*/
		if (symbol_conf.use_callchain &&
		!output[PERF_TYPE_TRACEPOINT].user_set) {
		struct perf_event_attr *attr;

		j = PERF_TYPE_TRACEPOINT;
		evsel = perf_session__find_first_evtype(session, j);
		if (evsel == NULL)
		goto out;

		attr = &evsel->attr;

		if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) {
		output[j].fields \|= PERF_OUTPUT_IP;
		output[j].fields \|= PERF_OUTPUT_SYM;
		output[j].fields \|= PERF_OUTPUT_DSO;
		set_print_ip_opts(attr);
		}
		}

		out:
		return 0;
		}

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