perf buildid-list: Introduce --with-hits option
[linux-2.6.git] / tools / perf / builtin-buildid-list.c
index 1e99ac8..431f204 100644 (file)
@@ -16,6 +16,7 @@
 
 static char const *input_name = "perf.data";
 static int force;
+static bool with_hits;
 
 static const char * const buildid_list_usage[] = {
        "perf buildid-list [<options>]",
@@ -23,6 +24,7 @@ static const char * const buildid_list_usage[] = {
 };
 
 static const struct option options[] = {
+       OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
        OPT_STRING('i', "input", &input_name, "file",
                    "input file name"),
        OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
@@ -31,26 +33,34 @@ static const struct option options[] = {
        OPT_END()
 };
 
-static int perf_file_section__process_buildids(struct perf_file_section *self,
-                                              int feat, int fd)
+static int build_id_list__process_event(event_t *event,
+                                       struct perf_session *session)
 {
-       if (feat != HEADER_BUILD_ID)
-               return 0;
+       struct addr_location al;
+       u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
+       struct thread *thread = perf_session__findnew(session, event->ip.pid);
 
-       if (lseek(fd, self->offset, SEEK_SET) < 0) {
-               pr_warning("Failed to lseek to %Ld offset for buildids!\n",
-                          self->offset);
+       if (thread == NULL) {
+               pr_err("problem processing %d event, skipping it.\n",
+                       event->header.type);
                return -1;
        }
 
-       if (perf_header__read_build_ids(fd, self->offset, self->size)) {
-               pr_warning("Failed to read buildids!\n");
-               return -1;
-       }
+       thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
+                             event->ip.ip, &al);
+
+       if (al.map != NULL)
+               al.map->dso->hit = 1;
 
        return 0;
 }
 
+static struct perf_event_ops build_id_list__event_ops = {
+       .sample = build_id_list__process_event,
+       .mmap   = event__process_mmap,
+       .fork   = event__process_task,
+};
+
 static int __cmd_buildid_list(void)
 {
        int err = -1;
@@ -60,10 +70,10 @@ static int __cmd_buildid_list(void)
        if (session == NULL)
                return -1;
 
-       err = perf_header__process_sections(&session->header, session->fd,
-                                        perf_file_section__process_buildids);
-       if (err >= 0)
-               dsos__fprintf_buildid(stdout);
+       if (with_hits)
+               perf_session__process_events(session, &build_id_list__event_ops);
+
+       dsos__fprintf_buildid(stdout, with_hits);
 
        perf_session__delete(session);
        return err;