perf script: Print callchains and symbols if they exist

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>

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index b392770..9f3ba44 100644 (file)
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -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;
 }