1// SPDX-License-Identifier: GPL-2.0
2/* System call table for i386. */
3
4#include <linux/linkage.h>
5#include <linux/sys.h>
6#include <linux/cache.h>
7#include <linux/syscalls.h>
8#include <asm/syscall.h>
9
10#ifdef CONFIG_IA32_EMULATION
11#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, compat)
12#else
13#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
14#endif
15
16#define __SYSCALL(nr, sym) extern long __ia32_##sym(const struct pt_regs *);
17
18#include <asm/syscalls_32.h>
19#undef __SYSCALL
20
21/*
22 * The sys_call_table[] is no longer used for system calls, but
23 * kernel/trace/trace_syscalls.c still wants to know the system
24 * call address.
25 */
26#ifdef CONFIG_X86_32
27#define __SYSCALL(nr, sym) __ia32_##sym,
28const sys_call_ptr_t sys_call_table[] = {
29#include <asm/syscalls_32.h>
30};
31#undef __SYSCALL
32#endif
33
34#define __SYSCALL(nr, sym) case nr: return __ia32_##sym(regs);
35
36long ia32_sys_call(const struct pt_regs *regs, unsigned int nr)
37{
38 switch (nr) {
39 #include <asm/syscalls_32.h>
40 default: return __ia32_sys_ni_syscall(regs);
41 }
42};
43

source code of linux/arch/x86/entry/syscall_32.c