xref: /openbmc/linux/arch/x86/entry/syscall_32.c (revision ebeb8c82ffaf94435806ff0b686fffd41dd410b5)
1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0
200398a00SIngo Molnar /* System call table for i386. */
300398a00SIngo Molnar 
400398a00SIngo Molnar #include <linux/linkage.h>
500398a00SIngo Molnar #include <linux/sys.h>
600398a00SIngo Molnar #include <linux/cache.h>
700398a00SIngo Molnar #include <asm/asm-offsets.h>
8034042ccSAndy Lutomirski #include <asm/syscall.h>
900398a00SIngo Molnar 
10*ebeb8c82SDominik Brodowski #ifdef CONFIG_SYSCALL_PTREGS
11*ebeb8c82SDominik Brodowski /* On X86_64, we use struct pt_regs * to pass parameters to syscalls */
12*ebeb8c82SDominik Brodowski #define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
13*ebeb8c82SDominik Brodowski 
14*ebeb8c82SDominik Brodowski /* this is a lie, but it does not hurt as sys_ni_syscall just returns -EINVAL */
15*ebeb8c82SDominik Brodowski extern asmlinkage long sys_ni_syscall(const struct pt_regs *);
16*ebeb8c82SDominik Brodowski 
17*ebeb8c82SDominik Brodowski #else /* CONFIG_SYSCALL_PTREGS */
18cfcbadb4SAndy Lutomirski #define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
19*ebeb8c82SDominik Brodowski extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
20*ebeb8c82SDominik Brodowski #endif /* CONFIG_SYSCALL_PTREGS */
21*ebeb8c82SDominik Brodowski 
2200398a00SIngo Molnar #include <asm/syscalls_32.h>
2300398a00SIngo Molnar #undef __SYSCALL_I386
2400398a00SIngo Molnar 
25cfcbadb4SAndy Lutomirski #define __SYSCALL_I386(nr, sym, qual) [nr] = sym,
2600398a00SIngo Molnar 
27bace7117SIngo Molnar __visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] = {
2800398a00SIngo Molnar 	/*
2900398a00SIngo Molnar 	 * Smells like a compiler bug -- it doesn't work
3000398a00SIngo Molnar 	 * when the & below is removed.
3100398a00SIngo Molnar 	 */
32bace7117SIngo Molnar 	[0 ... __NR_syscall_compat_max] = &sys_ni_syscall,
3300398a00SIngo Molnar #include <asm/syscalls_32.h>
3400398a00SIngo Molnar };
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