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#define __SYSCALL_NORETURN(nr, sym) extern long __noreturn __ia32_##sym(const struct pt_regs *);
18#include <asm/syscalls_32.h>
19#undef  __SYSCALL
20
21#undef  __SYSCALL_NORETURN
22#define __SYSCALL_NORETURN __SYSCALL
23
24/*
25 * The sys_call_table[] is no longer used for system calls, but
26 * kernel/trace/trace_syscalls.c still wants to know the system
27 * call address.
28 */
29#ifdef CONFIG_X86_32
30#define __SYSCALL(nr, sym) __ia32_##sym,
31const sys_call_ptr_t sys_call_table[] = {
32#include <asm/syscalls_32.h>
33};
34#undef  __SYSCALL
35#endif
36
37#define __SYSCALL(nr, sym) case nr: return __ia32_##sym(regs);
38long ia32_sys_call(const struct pt_regs *regs, unsigned int nr)
39{
40	switch (nr) {
41	#include <asm/syscalls_32.h>
42	default: return __ia32_sys_ni_syscall(regs);
43	}
44};

 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 <asm/asm-offsets.h>
 8#include <asm/syscall.h>
 9
10#ifdef CONFIG_IA32_EMULATION
11/* On X86_64, we use struct pt_regs * to pass parameters to syscalls */
12#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
13
14/* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */
15extern asmlinkage long sys_ni_syscall(const struct pt_regs *);
16
17#else /* CONFIG_IA32_EMULATION */
18#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
19extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
20#endif /* CONFIG_IA32_EMULATION */
21
 
 
22#include <asm/syscalls_32.h>
23#undef __SYSCALL_I386
24
25#define __SYSCALL_I386(nr, sym, qual) [nr] = sym,
 
26
27__visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] = {
28	/*
29	 * Smells like a compiler bug -- it doesn't work
30	 * when the & below is removed.
31	 */
32	[0 ... __NR_syscall_compat_max] = &sys_ni_syscall,
 
 
33#include <asm/syscalls_32.h>
 
 
 
 
 
 
 
 
 
 
 
34};