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