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 #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 /* Missing flags argument */
  44 #define __IGNORE_renameat       /* renameat2 */
  45
  46 /* CLOEXEC flag */
  47 #define __IGNORE_pipe           /* pipe2 */
  48 #define __IGNORE_dup2           /* dup3 */
  49 #define __IGNORE_epoll_create   /* epoll_create1 */
  50 #define __IGNORE_inotify_init   /* inotify_init1 */
  51 #define __IGNORE_eventfd        /* eventfd2 */
  52 #define __IGNORE_signalfd       /* signalfd4 */
  53
  54 /* MMU */
  55 #ifndef CONFIG_MMU
  56 #define __IGNORE_madvise
  57 #define __IGNORE_mbind
  58 #define __IGNORE_mincore
  59 #define __IGNORE_mlock
  60 #define __IGNORE_mlockall
  61 #define __IGNORE_munlock
  62 #define __IGNORE_munlockall
  63 #define __IGNORE_mprotect
  64 #define __IGNORE_msync
  65 #define __IGNORE_migrate_pages
  66 #define __IGNORE_move_pages
  67 #define __IGNORE_remap_file_pages
  68 #define __IGNORE_get_mempolicy
  69 #define __IGNORE_set_mempolicy
  70 #define __IGNORE_swapoff
  71 #define __IGNORE_swapon
  72 #endif
  73
  74 /* System calls for 32-bit kernels only */
  75 #if BITS_PER_LONG == 64
  76 #define __IGNORE_sendfile64
  77 #define __IGNORE_ftruncate64
  78 #define __IGNORE_truncate64
  79 #define __IGNORE_stat64
  80 #define __IGNORE_lstat64
  81 #define __IGNORE_fstat64
  82 #define __IGNORE_fcntl64
  83 #define __IGNORE_fadvise64_64
  84 #define __IGNORE_fstatat64
  85 #define __IGNORE_fstatfs64
  86 #define __IGNORE_statfs64
  87 #define __IGNORE_llseek
  88 #define __IGNORE_mmap2
  89 #define __IGNORE_clock_gettime64
  90 #define __IGNORE_clock_settime64
  91 #define __IGNORE_clock_adjtime64
  92 #define __IGNORE_clock_getres_time64
  93 #define __IGNORE_clock_nanosleep_time64
  94 #define __IGNORE_timer_gettime64
  95 #define __IGNORE_timer_settime64
  96 #define __IGNORE_timerfd_gettime64
  97 #define __IGNORE_timerfd_settime64
  98 #define __IGNORE_utimensat_time64
  99 #define __IGNORE_pselect6_time64
 100 #define __IGNORE_ppoll_time64
 101 #define __IGNORE_io_pgetevents_time64
 102 #define __IGNORE_recvmmsg_time64
 103 #define __IGNORE_mq_timedsend_time64
 104 #define __IGNORE_mq_timedreceive_time64
 105 #define __IGNORE_semtimedop_time64
 106 #define __IGNORE_rt_sigtimedwait_time64
 107 #define __IGNORE_futex_time64
 108 #define __IGNORE_sched_rr_get_interval_time64
 109 #else
 110 #define __IGNORE_sendfile
 111 #define __IGNORE_ftruncate
 112 #define __IGNORE_truncate
 113 #define __IGNORE_stat
 114 #define __IGNORE_lstat
 115 #define __IGNORE_fstat
 116 #define __IGNORE_fcntl
 117 #define __IGNORE_fadvise64
 118 #define __IGNORE_newfstatat
 119 #define __IGNORE_fstatfs
 120 #define __IGNORE_statfs
 121 #define __IGNORE_lseek
 122 #define __IGNORE_mmap
 123 #define __IGNORE_clock_gettime
 124 #define __IGNORE_clock_settime
 125 #define __IGNORE_clock_adjtime
 126 #define __IGNORE_clock_getres
 127 #define __IGNORE_clock_nanosleep
 128 #define __IGNORE_timer_gettime
 129 #define __IGNORE_timer_settime
 130 #define __IGNORE_timerfd_gettime
 131 #define __IGNORE_timerfd_settime
 132 #define __IGNORE_utimensat
 133 #define __IGNORE_pselect6
 134 #define __IGNORE_ppoll
 135 #define __IGNORE_io_pgetevents
 136 #define __IGNORE_recvmmsg
 137 #define __IGNORE_mq_timedsend
 138 #define __IGNORE_mq_timedreceive
 139 #define __IGNORE_semtimedop
 140 #define __IGNORE_rt_sigtimedwait
 141 #define __IGNORE_futex
 142 #define __IGNORE_sched_rr_get_interval
 143 #define __IGNORE_gettimeofday
 144 #define __IGNORE_settimeofday
 145 #define __IGNORE_wait4
 146 #define __IGNORE_adjtimex
 147 #define __IGNORE_nanosleep
 148 #define __IGNORE_io_getevents
 149 #define __IGNORE_recvmmsg
 150 #endif
 151
 152 /* i386-specific or historical system calls */
 153 #define __IGNORE_break
 154 #define __IGNORE_stty
 155 #define __IGNORE_gtty
 156 #define __IGNORE_ftime
 157 #define __IGNORE_prof
 158 #define __IGNORE_lock
 159 #define __IGNORE_mpx
 160 #define __IGNORE_ulimit
 161 #define __IGNORE_profil
 162 #define __IGNORE_ioperm
 163 #define __IGNORE_iopl
 164 #define __IGNORE_idle
 165 #define __IGNORE_modify_ldt
 166 #define __IGNORE_ugetrlimit
 167 #define __IGNORE_vm86
 168 #define __IGNORE_vm86old
 169 #define __IGNORE_set_thread_area
 170 #define __IGNORE_get_thread_area
 171 #define __IGNORE_madvise1
 172 #define __IGNORE_oldstat
 173 #define __IGNORE_oldfstat
 174 #define __IGNORE_oldlstat
 175 #define __IGNORE_oldolduname
 176 #define __IGNORE_olduname
 177 #define __IGNORE_umount
 178 #define __IGNORE_waitpid
 179 #define __IGNORE_stime
 180 #define __IGNORE_nice
 181 #define __IGNORE_signal
 182 #define __IGNORE_sigaction
 183 #define __IGNORE_sgetmask
 184 #define __IGNORE_sigsuspend
 185 #define __IGNORE_sigpending
 186 #define __IGNORE_ssetmask
 187 #define __IGNORE_readdir
 188 #define __IGNORE_socketcall
 189 #define __IGNORE_ipc
 190 #define __IGNORE_sigreturn
 191 #define __IGNORE_sigprocmask
 192 #define __IGNORE_bdflush
 193 #define __IGNORE__llseek
 194 #define __IGNORE__newselect
 195 #define __IGNORE_create_module
 196 #define __IGNORE_query_module
 197 #define __IGNORE_get_kernel_syms
 198 #define __IGNORE_sysfs
 199 #define __IGNORE_uselib
 200 #define __IGNORE__sysctl
 201 #define __IGNORE_arch_prctl
 202 #define __IGNORE_nfsservctl
 203
 204 /* ... including the "new" 32-bit uid syscalls */
 205 #define __IGNORE_lchown32
 206 #define __IGNORE_getuid32
 207 #define __IGNORE_getgid32
 208 #define __IGNORE_geteuid32
 209 #define __IGNORE_getegid32
 210 #define __IGNORE_setreuid32
 211 #define __IGNORE_setregid32
 212 #define __IGNORE_getgroups32
 213 #define __IGNORE_setgroups32
 214 #define __IGNORE_fchown32
 215 #define __IGNORE_setresuid32
 216 #define __IGNORE_getresuid32
 217 #define __IGNORE_setresgid32
 218 #define __IGNORE_getresgid32
 219 #define __IGNORE_chown32
 220 #define __IGNORE_setuid32
 221 #define __IGNORE_setgid32
 222 #define __IGNORE_setfsuid32
 223 #define __IGNORE_setfsgid32
 224
 225 /* these can be expressed using other calls */
 226 #define __IGNORE_alarm          /* setitimer */
 227 #define __IGNORE_creat          /* open */
 228 #define __IGNORE_fork           /* clone */
 229 #define __IGNORE_futimesat      /* utimensat */
 230 #define __IGNORE_getpgrp        /* getpgid */
 231 #define __IGNORE_getdents       /* getdents64 */
 232 #define __IGNORE_pause          /* sigsuspend */
 233 #define __IGNORE_poll           /* ppoll */
 234 #define __IGNORE_select         /* pselect6 */
 235 #define __IGNORE_epoll_wait     /* epoll_pwait */
 236 #define __IGNORE_time           /* gettimeofday */
 237 #define __IGNORE_uname          /* newuname */
 238 #define __IGNORE_ustat          /* statfs */
 239 #define __IGNORE_utime          /* utimes */
 240 #define __IGNORE_vfork          /* clone */
 241
 242 /* sync_file_range had a stupid ABI. Allow sync_file_range2 instead */
 243 #ifdef __NR_sync_file_range2
 244 #define __IGNORE_sync_file_range
 245 #endif
 246
 247 /* Unmerged syscalls for AFS, STREAMS, etc. */
 248 #define __IGNORE_afs_syscall
 249 #define __IGNORE_getpmsg
 250 #define __IGNORE_putpmsg
 251 #define __IGNORE_vserver
 252 EOF
 253 }
 254
 255 syscall_list() {
 256     grep '^[0-9]' "$1" | sort -n |
 257         while read nr abi name entry ; do
 258                 echo "#if !defined(__NR_${name}) && !defined(__IGNORE_${name})"
 259                 echo "#warning syscall ${name} not implemented"
 260                 echo "#endif"
 261         done
 262 }
 263
 264 (ignore_list && syscall_list $(dirname $0)/../arch/x86/entry/syscalls/syscall_32.tbl) | \
 265 $* -E -x c - > /dev/null