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-rw-r--r--tools/perf/util/event.c37
1 files changed, 32 insertions, 5 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index b7c7f39a8f6..a5787260181 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -261,11 +261,12 @@ int perf_event__synthesize_modules(struct perf_tool *tool,
static int __event__synthesize_thread(union perf_event *comm_event,
union perf_event *mmap_event,
- pid_t pid, perf_event__handler_t process,
+ pid_t pid, int full,
+ perf_event__handler_t process,
struct perf_tool *tool,
struct machine *machine)
{
- pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, 1,
+ pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, full,
process, machine);
if (tgid == -1)
return -1;
@@ -279,7 +280,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
struct machine *machine)
{
union perf_event *comm_event, *mmap_event;
- int err = -1, thread;
+ int err = -1, thread, j;
comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size);
if (comm_event == NULL)
@@ -292,11 +293,37 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
err = 0;
for (thread = 0; thread < threads->nr; ++thread) {
if (__event__synthesize_thread(comm_event, mmap_event,
- threads->map[thread],
+ threads->map[thread], 0,
process, tool, machine)) {
err = -1;
break;
}
+
+ /*
+ * comm.pid is set to thread group id by
+ * perf_event__synthesize_comm
+ */
+ if ((int) comm_event->comm.pid != threads->map[thread]) {
+ bool need_leader = true;
+
+ /* is thread group leader in thread_map? */
+ for (j = 0; j < threads->nr; ++j) {
+ if ((int) comm_event->comm.pid == threads->map[j]) {
+ need_leader = false;
+ break;
+ }
+ }
+
+ /* if not, generate events for it */
+ if (need_leader &&
+ __event__synthesize_thread(comm_event,
+ mmap_event,
+ comm_event->comm.pid, 0,
+ process, tool, machine)) {
+ err = -1;
+ break;
+ }
+ }
}
free(mmap_event);
out_free_comm:
@@ -333,7 +360,7 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
if (*end) /* only interested in proper numerical dirents */
continue;
- __event__synthesize_thread(comm_event, mmap_event, pid,
+ __event__synthesize_thread(comm_event, mmap_event, pid, 1,
process, tool, machine);
}