timing_test: Add arch_prctl_42

1 files changed, 5 insertions, 0 deletions

diff --git a/timing_test.cc b/timing_test.cc
index 6737023..2f35f26 100644
--- a/timing_test.cc
+++ b/timing_test.cc
@@ -272,6 +272,11 @@ int main(int argc, char **argv)
 	} else if (!strcmp(mode, "raise")) {
 		for (size_t i = 0; i < loops; ++i)
 			raise(SIGUSR1);
+#ifdef __x86_64__
+	} else if (!strcmp(mode, "arch_prctl_42")) {
+		for (size_t i = 0; i < loops; ++i)
+			syscall(SYS_arch_prctl, 42, 0);
+#endif
 	} else {
 		printf("Unknown mode %s\n", mode);
 		return 1;