xref: /linux/tools/testing/selftests/arm64/bti/system.c (revision a1c613ae4c322ddd58d5a8539dbfba2a0380a8c0) 
1314bcbf0SMark Brown // SPDX-License-Identifier: GPL-2.0
2314bcbf0SMark Brown /*
3314bcbf0SMark Brown  * Copyright (C) 2019  Arm Limited
4314bcbf0SMark Brown  * Original author: Dave Martin <Dave.Martin@arm.com>
5314bcbf0SMark Brown  */
6314bcbf0SMark Brown 
7314bcbf0SMark Brown #include "system.h"
8314bcbf0SMark Brown 
9314bcbf0SMark Brown #include <asm/unistd.h>
10314bcbf0SMark Brown 
exit(int n)11314bcbf0SMark Brown void __noreturn exit(int n)
12314bcbf0SMark Brown {
13314bcbf0SMark Brown 	syscall(__NR_exit, n);
14*672dbf97SMark Brown 	unreachable();
15314bcbf0SMark Brown }
16314bcbf0SMark Brown 
write(int fd,const void * buf,size_t size)17314bcbf0SMark Brown ssize_t write(int fd, const void *buf, size_t size)
18314bcbf0SMark Brown {
19314bcbf0SMark Brown 	return syscall(__NR_write, fd, buf, size);
20314bcbf0SMark Brown }
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