What's the difference between these two files? I can't really get it. I should mention that the first file should be arch/x86/include/asm/unistd_32.h (or and _64.h). Here is a quick preview of what they contain:
arch/x86/include/asm/unistd.h:
#ifndef _ASM_X86_UNISTD_32_H #define _ASM_X86_UNISTD_32_H /* * This file contains the system call numbers. */ #define __NR_restart_syscall 0 #define __NR_exit 1 #define __NR_fork 2 #define __NR_read 3 #define __NR_write 4 #define __NR_open 5 #define __NR_close 6 #define __NR_waitpid 7 #define __NR_creat 8 #define __NR_link 9 #define __NR_unlink 10 #define __NR_execve 11 #define __NR_chdir 12 #define __NR_time 13 #define __NR_mknod 14 #define __NR_chmod 15 #define __NR_lchown 16 #define __NR_break 17 #define __NR_oldstat 18 #define __NR_lseek 19 #define __NR_getpid 20 #define __NR_mount 21 #define __NR_umount 22 include/asm-generic/unistd.h
#if !defined(_ASM_GENERIC_UNISTD_H) || defined(__SYSCALL) #define _ASM_GENERIC_UNISTD_H #include <asm/bitsperlong.h> /* * This file contains the system call numbers, based on the * layout of the x86-64 architecture, which embeds the * pointer to the syscall in the table. * * As a basic principle, no duplication of functionality * should be added, e.g. we don't use lseek when llseek * is present. New architectures should use this file * and implement the less feature-full calls in user space. */ #ifndef __SYSCALL #define __SYSCALL(x, y) #endif #if __BITS_PER_LONG == 32 #define __SC_3264(_nr, _32, _64) __SYSCALL(_nr, _32) #else #define __SC_3264(_nr, _32, _64) __SYSCALL(_nr, _64) #endif #define __NR_io_setup 0 __SYSCALL(__NR_io_setup, sys_io_setup) #define __NR_io_destroy 1 __SYSCALL(__NR_io_destroy, sys_io_destroy) #define __NR_io_submit 2 __SYSCALL(__NR_io_submit, sys_io_submit) #define __NR_io_cancel 3 __SYSCALL(__NR_io_cancel, sys_io_cancel) #define __NR_io_getevents 4 __SYSCALL(__NR_io_getevents, sys_io_getevents) /* fs/xattr.c */ #define __NR_setxattr 5 __SYSCALL(__NR_setxattr, sys_setxattr) #define __NR_lsetxattr 6 __SYSCALL(__NR_lsetxattr, sys_lsetxattr) #define __NR_fsetxattr 7 __SYSCALL(__NR_fsetxattr, sys_fsetxattr) #define __NR_getxattr 8 __SYSCALL(__NR_getxattr, sys_getxattr) #define __NR_lgetxattr 9 __SYSCALL(__NR_lgetxattr, sys_lgetxattr) #define __NR_fgetxattr 10 __SYSCALL(__NR_fgetxattr, sys_fgetxattr) #define __NR_listxattr 11 __SYSCALL(__NR_listxattr, sys_listxattr) #define __NR_llistxattr 12