thread__ts
if (thread__ts(thread) && sample->flags & PERF_IP_FLAG_RETURN)
struct thread_stack *ts = thread__ts(thread), *new_ts;
free(thread__ts(thread));
struct thread_stack *ts = thread__ts(thread);
return thread__ts(thread);
struct thread_stack *ts = thread__ts(thread);
struct thread_stack *ts = thread__ts(thread);
free(thread__ts(thread));