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#define __IGNORE_stat /* fstatat */ 34#define __IGNORE_lstat /* fstatat */ 35#define __IGNORE_stat64 /* fstatat64 */ 36#define __IGNORE_lstat64 /* fstatat64 */ 37 38#ifndef __ARCH_WANT_SET_GET_RLIMIT 39#define __IGNORE_getrlimit /* getrlimit */ 40#define __IGNORE_setrlimit /* setrlimit */ 41#endif 42 43#ifndef __ARCH_WANT_MEMFD_SECRET 44#define __IGNORE_memfd_secret 45#endif 46 47/* Missing flags argument */ 48#define __IGNORE_renameat /* renameat2 */ 49 50/* CLOEXEC flag */ 51#define __IGNORE_pipe /* pipe2 */ 52#define __IGNORE_dup2 /* dup3 */ 53#define __IGNORE_epoll_create /* epoll_create1 */ 54#define __IGNORE_inotify_init /* inotify_init1 */ 55#define __IGNORE_eventfd /* eventfd2 */ 56#define __IGNORE_signalfd /* signalfd4 */ 57 58/* MMU */ 59#ifndef CONFIG_MMU 60#define __IGNORE_madvise 61#define __IGNORE_mbind 62#define __IGNORE_mincore 63#define __IGNORE_mlock 64#define __IGNORE_mlockall 65#define __IGNORE_munlock 66#define __IGNORE_munlockall 67#define __IGNORE_mprotect 68#define __IGNORE_msync 69#define __IGNORE_migrate_pages 70#define __IGNORE_move_pages 71#define __IGNORE_remap_file_pages 72#define __IGNORE_get_mempolicy 73#define __IGNORE_set_mempolicy 74#define __IGNORE_swapoff 75#define __IGNORE_swapon 76#endif 77 78/* System calls for 32-bit kernels only */ 79#if BITS_PER_LONG == 64 80#define __IGNORE_sendfile64 81#define __IGNORE_ftruncate64 82#define __IGNORE_truncate64 83#define __IGNORE_stat64 84#define __IGNORE_lstat64 85#define __IGNORE_fcntl64 86#define __IGNORE_fadvise64_64 87#define __IGNORE_fstatfs64 88#define __IGNORE_statfs64 89#define __IGNORE_llseek 90#define __IGNORE_mmap2 91#define __IGNORE_clock_gettime64 92#define __IGNORE_clock_settime64 93#define __IGNORE_clock_adjtime64 94#define __IGNORE_clock_getres_time64 95#define __IGNORE_clock_nanosleep_time64 96#define __IGNORE_timer_gettime64 97#define __IGNORE_timer_settime64 98#define __IGNORE_timerfd_gettime64 99#define __IGNORE_timerfd_settime64 100#define __IGNORE_utimensat_time64 101#define __IGNORE_pselect6_time64 102#define __IGNORE_ppoll_time64 103#define __IGNORE_io_pgetevents_time64 104#define __IGNORE_recvmmsg_time64 105#define __IGNORE_mq_timedsend_time64 106#define __IGNORE_mq_timedreceive_time64 107#define __IGNORE_semtimedop_time64 108#define __IGNORE_rt_sigtimedwait_time64 109#define __IGNORE_futex_time64 110#define __IGNORE_sched_rr_get_interval_time64 111#else 112#define __IGNORE_sendfile 113#define __IGNORE_ftruncate 114#define __IGNORE_truncate 115#define __IGNORE_stat 116#define __IGNORE_lstat 117#define __IGNORE_fcntl 118#define __IGNORE_fadvise64 119#define __IGNORE_newfstatat 120#define __IGNORE_fstatfs 121#define __IGNORE_statfs 122#define __IGNORE_lseek 123#define __IGNORE_mmap 124#define __IGNORE_clock_gettime 125#define __IGNORE_clock_settime 126#define __IGNORE_clock_adjtime 127#define __IGNORE_clock_getres 128#define __IGNORE_clock_nanosleep 129#define __IGNORE_timer_gettime 130#define __IGNORE_timer_settime 131#define __IGNORE_timerfd_gettime 132#define __IGNORE_timerfd_settime 133#define __IGNORE_utimensat 134#define __IGNORE_pselect6 135#define __IGNORE_ppoll 136#define __IGNORE_io_pgetevents 137#define __IGNORE_recvmmsg 138#define __IGNORE_mq_timedsend 139#define __IGNORE_mq_timedreceive 140#define __IGNORE_semtimedop 141#define __IGNORE_rt_sigtimedwait 142#define __IGNORE_futex 143#define __IGNORE_sched_rr_get_interval 144#define __IGNORE_gettimeofday 145#define __IGNORE_settimeofday 146#define __IGNORE_wait4 147#define __IGNORE_adjtimex 148#define __IGNORE_nanosleep 149#define __IGNORE_io_getevents 150#define __IGNORE_recvmmsg 151#endif 152 153/* i386-specific or historical system calls */ 154#define __IGNORE_break 155#define __IGNORE_stty 156#define __IGNORE_gtty 157#define __IGNORE_ftime 158#define __IGNORE_prof 159#define __IGNORE_lock 160#define __IGNORE_mpx 161#define __IGNORE_ulimit 162#define __IGNORE_profil 163#define __IGNORE_ioperm 164#define __IGNORE_iopl 165#define __IGNORE_idle 166#define __IGNORE_modify_ldt 167#define __IGNORE_ugetrlimit 168#define __IGNORE_vm86 169#define __IGNORE_vm86old 170#define __IGNORE_set_thread_area 171#define __IGNORE_get_thread_area 172#define __IGNORE_madvise1 173#define __IGNORE_oldstat 174#define __IGNORE_oldfstat 175#define __IGNORE_oldlstat 176#define __IGNORE_oldolduname 177#define __IGNORE_olduname 178#define __IGNORE_umount 179#define __IGNORE_waitpid 180#define __IGNORE_stime 181#define __IGNORE_nice 182#define __IGNORE_signal 183#define __IGNORE_sigaction 184#define __IGNORE_sgetmask 185#define __IGNORE_sigsuspend 186#define __IGNORE_sigpending 187#define __IGNORE_ssetmask 188#define __IGNORE_readdir 189#define __IGNORE_socketcall 190#define __IGNORE_ipc 191#define __IGNORE_sigreturn 192#define __IGNORE_sigprocmask 193#define __IGNORE_bdflush 194#define __IGNORE__llseek 195#define __IGNORE__newselect 196#define __IGNORE_create_module 197#define __IGNORE_query_module 198#define __IGNORE_get_kernel_syms 199#define __IGNORE_sysfs 200#define __IGNORE_uselib 201#define __IGNORE__sysctl 202#define __IGNORE_arch_prctl 203#define __IGNORE_nfsservctl 204 205/* ... including the "new" 32-bit uid syscalls */ 206#define __IGNORE_lchown32 207#define __IGNORE_getuid32 208#define __IGNORE_getgid32 209#define __IGNORE_geteuid32 210#define __IGNORE_getegid32 211#define __IGNORE_setreuid32 212#define __IGNORE_setregid32 213#define __IGNORE_getgroups32 214#define __IGNORE_setgroups32 215#define __IGNORE_fchown32 216#define __IGNORE_setresuid32 217#define __IGNORE_getresuid32 218#define __IGNORE_setresgid32 219#define __IGNORE_getresgid32 220#define __IGNORE_chown32 221#define __IGNORE_setuid32 222#define __IGNORE_setgid32 223#define __IGNORE_setfsuid32 224#define __IGNORE_setfsgid32 225 226/* these can be expressed using other calls */ 227#define __IGNORE_alarm /* setitimer */ 228#define __IGNORE_creat /* open */ 229#define __IGNORE_fork /* clone */ 230#define __IGNORE_futimesat /* utimensat */ 231#define __IGNORE_getpgrp /* getpgid */ 232#define __IGNORE_getdents /* getdents64 */ 233#define __IGNORE_pause /* sigsuspend */ 234#define __IGNORE_poll /* ppoll */ 235#define __IGNORE_select /* pselect6 */ 236#define __IGNORE_epoll_wait /* epoll_pwait */ 237#define __IGNORE_time /* gettimeofday */ 238#define __IGNORE_uname /* newuname */ 239#define __IGNORE_ustat /* statfs */ 240#define __IGNORE_utime /* utimes */ 241#define __IGNORE_vfork /* clone */ 242 243/* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */ 244#ifdef __NR_sync_file_range2 245#define __IGNORE_sync_file_range 246#endif 247 248/* Unmerged syscalls for AFS, STREAMS, etc. */ 249#define __IGNORE_afs_syscall 250#define __IGNORE_getpmsg 251#define __IGNORE_putpmsg 252#define __IGNORE_vserver 253 254/* 64-bit ports never needed these, and new 32-bit ports can use statx */ 255#define __IGNORE_fstat64 256#define __IGNORE_fstatat64 257 258/* Newer ports are not required to provide fstat in favor of statx */ 259#define __IGNORE_fstat 260EOF 261} 262 263syscall_list() { 264 grep '^[0-9]' "$1" | sort -n | 265 while read nr abi name entry ; do 266 echo "#if !defined(__NR_${name}) && !defined(__IGNORE_${name})" 267 echo "#warning syscall ${name} not implemented" 268 echo "#endif" 269 done 270} 271 272(ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \ 273$* -Wno-error -Wno-unused-macros -E -x c - > /dev/null 274