tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1// SPDX-License-Identifier: GPL-2.0
2/* System call table for x32 ABI. */
3
4#include <linux/linkage.h>
5#include <linux/sys.h>
6#include <linux/cache.h>
7#include <linux/syscalls.h>
8#include <asm/unistd.h>
9#include <asm/syscall.h>
10
11/*
12 * Reuse the 64-bit entry points for the x32 versions that occupy different
13 * slots in the syscall table.
14 */
15#define __x32_sys_readv __x64_sys_readv
16#define __x32_sys_writev __x64_sys_writev
17#define __x32_sys_getsockopt __x64_sys_getsockopt
18#define __x32_sys_setsockopt __x64_sys_setsockopt
19#define __x32_sys_vmsplice __x64_sys_vmsplice
20#define __x32_sys_process_vm_readv __x64_sys_process_vm_readv
21#define __x32_sys_process_vm_writev __x64_sys_process_vm_writev
22
23#define __SYSCALL_64(nr, sym)
24
25#define __SYSCALL_X32(nr, sym) extern long __x32_##sym(const struct pt_regs *);
26#define __SYSCALL_COMMON(nr, sym) extern long __x64_##sym(const struct pt_regs *);
27#include <asm/syscalls_64.h>
28#undef __SYSCALL_X32
29#undef __SYSCALL_COMMON
30
31#define __SYSCALL_X32(nr, sym) [nr] = __x32_##sym,
32#define __SYSCALL_COMMON(nr, sym) [nr] = __x64_##sym,
33
34asmlinkage const sys_call_ptr_t x32_sys_call_table[__NR_x32_syscall_max+1] = {
35 /*
36 * Smells like a compiler bug -- it doesn't work
37 * when the & below is removed.
38 */
39 [0 ... __NR_x32_syscall_max] = &__x64_sys_ni_syscall,
40#include <asm/syscalls_64.h>
41};