xnu-4570.71.2.tar.gz

[apple/xnu.git] / osfmk / kperf / kperf_timer.c

diff --git a/osfmk/kperf/kperf_timer.c b/osfmk/kperf/kperf_timer.c
index a6cf3c2e333b3d9a69a7bb86f8a45a503cbe9521..86ed35d8711638d55de4a80599e1654dce7e77f4 100644 (file)
--- a/osfmk/kperf/kperf_timer.c
+++ b/osfmk/kperf/kperf_timer.c
@@ -105,8 +105,6 @@ static void
 kperf_sample_cpu(struct kperf_timer *timer, bool system_sample,
                bool only_system)
 {
-       struct kperf_context ctx;
-
        assert(timer != NULL);
 
        /* Always cut a tracepoint to show a sample event occurred */
@@ -115,15 +113,18 @@ kperf_sample_cpu(struct kperf_timer *timer, bool system_sample,
        int ncpu = cpu_number();
 
        struct kperf_sample *intbuf = kperf_intr_sample_buffer();
+#if DEVELOPMENT || DEBUG
+       intbuf->sample_time = mach_absolute_time();
+#endif /* DEVELOPMENT || DEBUG */
 
        /* On a timer, we can see the "real" current thread */
-       ctx.cur_thread = current_thread();
+       struct kperf_context ctx = {
+               .cur_thread = current_thread(),
+               .trigger_type = TRIGGER_TYPE_TIMER,
+               .trigger_id = (unsigned int)(timer - kperf_timerv),
+       };
        ctx.cur_pid = task_pid(get_threadtask(ctx.cur_thread));
 
-       /* who fired */
-       ctx.trigger_type = TRIGGER_TYPE_TIMER;
-       ctx.trigger_id = (unsigned int)(timer - kperf_timerv);
-
        if (ctx.trigger_id == pet_timer_id && ncpu < machine_info.logical_cpu_max) {
                kperf_tid_on_cpus[ncpu] = thread_tid(ctx.cur_thread);
        }
@@ -169,6 +170,9 @@ kperf_timer_handler(void *param0, __unused void *param1)
        }
 
        timer->active = 1;
+#if DEVELOPMENT || DEBUG
+       timer->fire_time = mach_absolute_time();
+#endif /* DEVELOPMENT || DEBUG */
 
        /* along the lines of do not ipi if we are all shutting down */
        if (kperf_sampling_status() == KPERF_SAMPLING_SHUTDOWN) {