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Diffstat (limited to 'tools/testing/selftests/arm64/bti/system.c')
-rw-r--r--tools/testing/selftests/arm64/bti/system.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/bti/system.c b/tools/testing/selftests/arm64/bti/system.c
new file mode 100644
index 000000000000..6385d8d4973b
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/system.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "system.h"
+
+#include <asm/unistd.h>
+
+#include "compiler.h"
+
+void __noreturn exit(int n)
+{
+ syscall(__NR_exit, n);
+ __unreachable();
+}
+
+ssize_t write(int fd, const void *buf, size_t size)
+{
+ return syscall(__NR_write, fd, buf, size);
+}