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libsysprof: implement follow fork instead of tracking spawnable

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This commit is contained in:
Christian Hergert
2023-08-04 15:31:00 -07:00
parent 48e94181a7
commit 56680ae12f
3 changed files with 79 additions and 83 deletions
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14
src/libsysprof/sysprof-sampler.c
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@ -105,7 +105,8 @@ sysprof_sampler_perf_event_stream_cb (const SysprofPerfEvent *event,
guint cpu,
gpointer user_data)
{
SysprofCaptureWriter *writer = user_data;
SysprofRecording *recording = user_data;
SysprofCaptureWriter *writer = _sysprof_recording_writer (recording);
gsize offset;
gint64 time;
@ -148,10 +149,7 @@ sysprof_sampler_perf_event_stream_cb (const SysprofPerfEvent *event,
event->fork.ptid,
event->fork.tid);
/*
* TODO: We should add support for "follow fork" of the GPid if we are
* targetting it.
*/
_sysprof_recording_follow_fork (recording, event->fork.tid);
break;
@ -248,7 +246,6 @@ static DexFuture *
sysprof_sampler_prepare_fiber (gpointer user_data)
{
Prepare *prepare = user_data;
SysprofCaptureWriter *writer;
g_autoptr(GDBusConnection) connection = NULL;
g_autoptr(GPtrArray) futures = NULL;
g_autoptr(GError) error = NULL;
@ -290,7 +287,6 @@ sysprof_sampler_prepare_fiber (gpointer user_data)
*/
n_cpu = g_get_num_processors ();
futures = g_ptr_array_new_with_free_func (dex_unref);
writer = _sysprof_recording_writer (prepare->recording);
try_again:
attr.sample_type = PERF_SAMPLE_IP
@ -332,8 +328,8 @@ try_again:
-1,
0,
sysprof_sampler_perf_event_stream_cb,
sysprof_capture_writer_ref (writer),
(GDestroyNotify)sysprof_capture_writer_unref));
g_object_ref (prepare->recording),
g_object_unref));
if (!dex_await (dex_future_allv ((DexFuture **)futures->pdata, futures->len), &error))
{