1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _ASM_X86_UNISTD_H
3#define _ASM_X86_UNISTD_H
4
5/*
6 * x32 syscall flag bit. Some user programs expect syscall NR macros
7 * and __X32_SYSCALL_BIT to have type int, even though syscall numbers
8 * are, for practical purposes, unsigned long.
9 *
10 * Fortunately, expressions like (nr & ~__X32_SYSCALL_BIT) do the right
11 * thing regardless.
12 */
13#define __X32_SYSCALL_BIT 0x40000000
14
15# ifdef __i386__
16# include <asm/unistd_32.h>
17# elif defined(__ILP32__)
18# include <asm/unistd_x32.h>
19# else
20# include <asm/unistd_64.h>
21# endif
22
23#endif /* _ASM_X86_UNISTD_H */
24

source code of include/x86_64-linux-gnu/asm/unistd.h