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libsysprof-profile: add diagnostics for perf event open failure

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This commit is contained in:
Christian Hergert
2023-06-13 11:42:48 -07:00
parent f09186dc21
commit a9f149ec3d
1 changed files with 22 additions and 1 deletions
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23
src/libsysprof-profile/sysprof-sampler.c
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@ -293,7 +293,28 @@ sysprof_sampler_prepare_fiber (gpointer user_data)
(GDestroyNotify)sysprof_capture_writer_unref));
if (!dex_await (dex_future_allv ((DexFuture **)futures->pdata, futures->len), &error))
return dex_future_new_for_error (g_steal_pointer (&error));
{
guint failed = 0;
for (guint i = 0; i < futures->len; i++)
{
DexFuture *future = g_ptr_array_index (futures, i);
if (dex_future_get_status (future) == DEX_FUTURE_STATUS_REJECTED)
{
g_autoptr(GError) future_error = NULL;
dex_future_get_value (future, &future_error);
_sysprof_recording_diagnostic (prepare->recording,
"Sampler",
"Failed to load Perf event stream for CPU %d: %s",
i, future_error->message);
failed++;
}
}
if (failed == futures->len)
return dex_future_new_for_error (g_steal_pointer (&error));
}
/* Save each of the streams (currently corked), so that we can
* uncork them while recording. We already checked that all the