perf machine: Factor machine__find_thread to take tid argument
Forcing the code to always search thread by pid/tid pair. The PID value will be needed in future to determine the process thread leader for map groups sharing. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1394805606-25883-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -128,7 +128,7 @@ int test__dwarf_unwind(void)
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if (verbose > 1)
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machine__fprintf(machine, stderr);
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thread = machine__find_thread(machine, getpid());
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thread = machine__find_thread(machine, getpid(), getpid());
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if (!thread) {
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pr_err("Could not get thread\n");
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goto out;
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@ -327,9 +327,10 @@ struct thread *machine__findnew_thread(struct machine *machine, pid_t pid,
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return __machine__findnew_thread(machine, pid, tid, true);
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}
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struct thread *machine__find_thread(struct machine *machine, pid_t tid)
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struct thread *machine__find_thread(struct machine *machine, pid_t pid,
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pid_t tid)
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{
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return __machine__findnew_thread(machine, 0, tid, false);
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return __machine__findnew_thread(machine, pid, tid, false);
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}
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int machine__process_comm_event(struct machine *machine, union perf_event *event,
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@ -1114,7 +1115,9 @@ static void machine__remove_thread(struct machine *machine, struct thread *th)
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int machine__process_fork_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample)
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{
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struct thread *thread = machine__find_thread(machine, event->fork.tid);
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struct thread *thread = machine__find_thread(machine,
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event->fork.pid,
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event->fork.tid);
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struct thread *parent = machine__findnew_thread(machine,
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event->fork.ppid,
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event->fork.ptid);
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@ -1140,7 +1143,9 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
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int machine__process_exit_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample __maybe_unused)
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{
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struct thread *thread = machine__find_thread(machine, event->fork.tid);
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struct thread *thread = machine__find_thread(machine,
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event->fork.pid,
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event->fork.tid);
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if (dump_trace)
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perf_event__fprintf_task(event, stdout);
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@ -41,7 +41,8 @@ struct map *machine__kernel_map(struct machine *machine, enum map_type type)
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return machine->vmlinux_maps[type];
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}
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struct thread *machine__find_thread(struct machine *machine, pid_t tid);
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struct thread *machine__find_thread(struct machine *machine, pid_t pid,
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pid_t tid);
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int machine__process_comm_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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