scripts/checksyscalls.sh

   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
  13 ignore_list() {
  14 cat << 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 #define __IGNORE_nfsservctl
 154
 155 /* ... including the "new" 32-bit uid syscalls */
 156 #define __IGNORE_lchown32
 157 #define __IGNORE_getuid32
 158 #define __IGNORE_getgid32
 159 #define __IGNORE_geteuid32
 160 #define __IGNORE_getegid32
 161 #define __IGNORE_setreuid32
 162 #define __IGNORE_setregid32
 163 #define __IGNORE_getgroups32
 164 #define __IGNORE_setgroups32
 165 #define __IGNORE_fchown32
 166 #define __IGNORE_setresuid32
 167 #define __IGNORE_getresuid32
 168 #define __IGNORE_setresgid32
 169 #define __IGNORE_getresgid32
 170 #define __IGNORE_chown32
 171 #define __IGNORE_setuid32
 172 #define __IGNORE_setgid32
 173 #define __IGNORE_setfsuid32
 174 #define __IGNORE_setfsgid32
 175
 176 /* these can be expressed using other calls */
 177 #define __IGNORE_alarm          /* setitimer */
 178 #define __IGNORE_creat          /* open */
 179 #define __IGNORE_fork           /* clone */
 180 #define __IGNORE_futimesat      /* utimensat */
 181 #define __IGNORE_getpgrp        /* getpgid */
 182 #define __IGNORE_getdents       /* getdents64 */
 183 #define __IGNORE_pause          /* sigsuspend */
 184 #define __IGNORE_poll           /* ppoll */
 185 #define __IGNORE_select         /* pselect6 */
 186 #define __IGNORE_epoll_wait     /* epoll_pwait */
 187 #define __IGNORE_time           /* gettimeofday */
 188 #define __IGNORE_uname          /* newuname */
 189 #define __IGNORE_ustat          /* statfs */
 190 #define __IGNORE_utime          /* utimes */
 191 #define __IGNORE_vfork          /* clone */
 192
 193 /* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */
 194 #ifdef __NR_sync_file_range2
 195 #define __IGNORE_sync_file_range
 196 #endif
 197
 198 /* Unmerged syscalls for AFS, STREAMS, etc. */
 199 #define __IGNORE_afs_syscall
 200 #define __IGNORE_getpmsg
 201 #define __IGNORE_putpmsg
 202 #define __IGNORE_vserver
 203 EOF
 204 }
 205
 206 syscall_list() {
 207     grep '^[0-9]' "$1" | sort -n |
 208         while read nr abi name entry ; do
 209                 echo "#if !defined(__NR_${name}) && !defined(__IGNORE_${name})"
 210                 echo "#warning syscall ${name} not implemented"
 211                 echo "#endif"
 212         done
 213 }
 214
 215 (ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \
 216 $* -E -x c - > /dev/null