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review.trustedfirmware.org / hafnium / third_party / linux.git / 0e64123141f3854e695eb4924d82b52856691466 / . / arch / x86 / entry / syscall_64.c
blob: adf619a856e8d2dde3db5193adb5c7513c49214a [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1// SPDX-License-Identifier: GPL-2.0
2/* System call table for x86-64. */
3
4#include <linux/linkage.h>
5#include <linux/sys.h>
6#include <linux/cache.h>
Olivier Deprez0e641232021-09-23 10:07:05 +0200[diff] [blame^]7#include <linux/syscalls.h>
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]8#include <asm/asm-offsets.h>
9#include <asm/syscall.h>
10
Olivier Deprez0e641232021-09-23 10:07:05 +0200[diff] [blame^]11extern asmlinkage long sys_ni_syscall(void);
12
13SYSCALL_DEFINE0(ni_syscall)
14{
15 return sys_ni_syscall();
16}
17
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]18#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]19#define __SYSCALL_X32(nr, sym, qual) __SYSCALL_64(nr, sym, qual)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]20#include <asm/syscalls_64.h>
21#undef __SYSCALL_64
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]22#undef __SYSCALL_X32
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]23
24#define __SYSCALL_64(nr, sym, qual) [nr] = sym,
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]25#define __SYSCALL_X32(nr, sym, qual)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]26
27asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
28 /*
29 * Smells like a compiler bug -- it doesn't work
30 * when the & below is removed.
31 */
Olivier Deprez0e641232021-09-23 10:07:05 +0200[diff] [blame^]32 [0 ... __NR_syscall_max] = &__x64_sys_ni_syscall,
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]33#include <asm/syscalls_64.h>
34};
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]35
36#undef __SYSCALL_64
37#undef __SYSCALL_X32
38
39#ifdef CONFIG_X86_X32_ABI
40
41#define __SYSCALL_64(nr, sym, qual)
42#define __SYSCALL_X32(nr, sym, qual) [nr] = sym,
43
44asmlinkage const sys_call_ptr_t x32_sys_call_table[__NR_syscall_x32_max+1] = {
45 /*
46 * Smells like a compiler bug -- it doesn't work
47 * when the & below is removed.
48 */
Olivier Deprez0e641232021-09-23 10:07:05 +0200[diff] [blame^]49 [0 ... __NR_syscall_x32_max] = &__x64_sys_ni_syscall,
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]50#include <asm/syscalls_64.h>
51};
52
53#undef __SYSCALL_64
54#undef __SYSCALL_X32
55
56#endif