[PATCH 2/2] Mark perf_event_open() with IGNORE_ENOSYS

At the very least specifying PERF_SAMPLE_STACK_USER will return ENOSYS
on arches that don't implement it.
---
 syscalls/perf_event_open.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/syscalls/perf_event_open.c b/syscalls/perf_event_open.c
index d6c404c..0fe64ce 100644
--- a/syscalls/perf_event_open.c
+++ b/syscalls/perf_event_open.c
@@ -1316,5 +1316,5 @@ struct syscallentry syscall_perf_event_open = {
 	},
 	.sanitise = sanitise_perf_event_open,
 	.init = init_pmus,
-	.flags = NEED_ALARM,
+	.flags = NEED_ALARM | IGNORE_ENOSYS,
 };
-- 
1.9.1