1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# 4# Check if current architecture are missing any function calls compared 5# to i386. 6# i386 define a number of legacy system calls that are i386 specific 7# and listed below so they are ignored. 8# 9# Usage: 10# checksyscalls.sh gcc gcc-options 11# 12 13ignore_list() { 14cat << EOF 15#include <asm/types.h> 16#include <asm/unistd.h> 17 18/* *at */ 19#define __IGNORE_open /* openat */ 20#define __IGNORE_link /* linkat */ 21#define __IGNORE_unlink /* unlinkat */ 22#define __IGNORE_mknod /* mknodat */ 23#define __IGNORE_chmod /* fchmodat */ 24#define __IGNORE_chown /* fchownat */ 25#define __IGNORE_mkdir /* mkdirat */ 26#define __IGNORE_rmdir /* unlinkat */ 27#define __IGNORE_lchown /* fchownat */ 28#define __IGNORE_access /* faccessat */ 29#define __IGNORE_rename /* renameat2 */ 30#define __IGNORE_readlink /* readlinkat */ 31#define __IGNORE_symlink /* symlinkat */ 32#define __IGNORE_utimes /* futimesat */ 33#if BITS_PER_LONG == 64 34#define __IGNORE_stat /* fstatat */ 35#define __IGNORE_lstat /* fstatat */ 36#else 37#define __IGNORE_stat64 /* fstatat64 */ 38#define __IGNORE_lstat64 /* fstatat64 */ 39#endif 40 41/* Missing flags argument */ 42#define __IGNORE_renameat /* renameat2 */ 43 44/* CLOEXEC flag */ 45#define __IGNORE_pipe /* pipe2 */ 46#define __IGNORE_dup2 /* dup3 */ 47#define __IGNORE_epoll_create /* epoll_create1 */ 48#define __IGNORE_inotify_init /* inotify_init1 */ 49#define __IGNORE_eventfd /* eventfd2 */ 50#define __IGNORE_signalfd /* signalfd4 */ 51 52/* MMU */ 53#ifndef CONFIG_MMU 54#define __IGNORE_madvise 55#define __IGNORE_mbind 56#define __IGNORE_mincore 57#define __IGNORE_mlock 58#define __IGNORE_mlockall 59#define __IGNORE_munlock 60#define __IGNORE_munlockall 61#define __IGNORE_mprotect 62#define __IGNORE_msync 63#define __IGNORE_migrate_pages 64#define __IGNORE_move_pages 65#define __IGNORE_remap_file_pages 66#define __IGNORE_get_mempolicy 67#define __IGNORE_set_mempolicy 68#define __IGNORE_swapoff 69#define __IGNORE_swapon 70#endif 71 72/* System calls for 32-bit kernels only */ 73#if BITS_PER_LONG == 64 74#define __IGNORE_sendfile64 75#define __IGNORE_ftruncate64 76#define __IGNORE_truncate64 77#define __IGNORE_stat64 78#define __IGNORE_lstat64 79#define __IGNORE_fstat64 80#define __IGNORE_fcntl64 81#define __IGNORE_fadvise64_64 82#define __IGNORE_fstatat64 83#define __IGNORE_fstatfs64 84#define __IGNORE_statfs64 85#define __IGNORE_llseek 86#define __IGNORE_mmap2 87#else 88#define __IGNORE_sendfile 89#define __IGNORE_ftruncate 90#define __IGNORE_truncate 91#define __IGNORE_stat 92#define __IGNORE_lstat 93#define __IGNORE_fstat 94#define __IGNORE_fcntl 95#define __IGNORE_fadvise64 96#define __IGNORE_newfstatat 97#define __IGNORE_fstatfs 98#define __IGNORE_statfs 99#define __IGNORE_lseek 100#define __IGNORE_mmap 101#endif 102 103/* i386-specific or historical system calls */ 104#define __IGNORE_break 105#define __IGNORE_stty 106#define __IGNORE_gtty 107#define __IGNORE_ftime 108#define __IGNORE_prof 109#define __IGNORE_lock 110#define __IGNORE_mpx 111#define __IGNORE_ulimit 112#define __IGNORE_profil 113#define __IGNORE_ioperm 114#define __IGNORE_iopl 115#define __IGNORE_idle 116#define __IGNORE_modify_ldt 117#define __IGNORE_ugetrlimit 118#define __IGNORE_vm86 119#define __IGNORE_vm86old 120#define __IGNORE_set_thread_area 121#define __IGNORE_get_thread_area 122#define __IGNORE_madvise1 123#define __IGNORE_oldstat 124#define __IGNORE_oldfstat 125#define __IGNORE_oldlstat 126#define __IGNORE_oldolduname 127#define __IGNORE_olduname 128#define __IGNORE_umount 129#define __IGNORE_waitpid 130#define __IGNORE_stime 131#define __IGNORE_nice 132#define __IGNORE_signal 133#define __IGNORE_sigaction 134#define __IGNORE_sgetmask 135#define __IGNORE_sigsuspend 136#define __IGNORE_sigpending 137#define __IGNORE_ssetmask 138#define __IGNORE_readdir 139#define __IGNORE_socketcall 140#define __IGNORE_ipc 141#define __IGNORE_sigreturn 142#define __IGNORE_sigprocmask 143#define __IGNORE_bdflush 144#define __IGNORE__llseek 145#define __IGNORE__newselect 146#define __IGNORE_create_module 147#define __IGNORE_query_module 148#define __IGNORE_get_kernel_syms 149#define __IGNORE_sysfs 150#define __IGNORE_uselib 151#define __IGNORE__sysctl 152#define __IGNORE_arch_prctl 153 154/* ... including the "new" 32-bit uid syscalls */ 155#define __IGNORE_lchown32 156#define __IGNORE_getuid32 157#define __IGNORE_getgid32 158#define __IGNORE_geteuid32 159#define __IGNORE_getegid32 160#define __IGNORE_setreuid32 161#define __IGNORE_setregid32 162#define __IGNORE_getgroups32 163#define __IGNORE_setgroups32 164#define __IGNORE_fchown32 165#define __IGNORE_setresuid32 166#define __IGNORE_getresuid32 167#define __IGNORE_setresgid32 168#define __IGNORE_getresgid32 169#define __IGNORE_chown32 170#define __IGNORE_setuid32 171#define __IGNORE_setgid32 172#define __IGNORE_setfsuid32 173#define __IGNORE_setfsgid32 174 175/* these can be expressed using other calls */ 176#define __IGNORE_alarm /* setitimer */ 177#define __IGNORE_creat /* open */ 178#define __IGNORE_fork /* clone */ 179#define __IGNORE_futimesat /* utimensat */ 180#define __IGNORE_getpgrp /* getpgid */ 181#define __IGNORE_getdents /* getdents64 */ 182#define __IGNORE_pause /* sigsuspend */ 183#define __IGNORE_poll /* ppoll */ 184#define __IGNORE_select /* pselect6 */ 185#define __IGNORE_epoll_wait /* epoll_pwait */ 186#define __IGNORE_time /* gettimeofday */ 187#define __IGNORE_uname /* newuname */ 188#define __IGNORE_ustat /* statfs */ 189#define __IGNORE_utime /* utimes */ 190#define __IGNORE_vfork /* clone */ 191 192/* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */ 193#ifdef __NR_sync_file_range2 194#define __IGNORE_sync_file_range 195#endif 196 197/* Unmerged syscalls for AFS, STREAMS, etc. */ 198#define __IGNORE_afs_syscall 199#define __IGNORE_getpmsg 200#define __IGNORE_putpmsg 201#define __IGNORE_vserver 202EOF 203} 204 205syscall_list() { 206 grep '^[0-9]' "$1" | sort -n | 207 while read nr abi name entry ; do 208 echo "#if !defined(__NR_${name}) && !defined(__IGNORE_${name})" 209 echo "#warning syscall ${name} not implemented" 210 echo "#endif" 211 done 212} 213 214(ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \ 215$* -E -x c - > /dev/null 216
