libc/sysdeps/linux/common/stubs.c

   1 /*
   2  * system call not available stub
   3  *
   4  * Copyright (C) 2009 Analog Devices Inc.
   5  *
   6  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   7  */
   8
   9 /* Please keep the list sorted alphabetically, in ascending order
  10  * of the stub name!  */
  11
  12 #include <errno.h>
  13 #include <bits/wordsize.h>
  14 #include <sys/syscall.h>
  15
  16 #ifdef __UCLIBC_HAS_STUBS__
  17
  18 __attribute_used__ static int enosys_stub(void)
  19 {
  20         __set_errno(ENOSYS);
  21         return -1;
  22 }
  23
  24 __attribute_used__ static int ret_enosys_stub(void)
  25 {
  26         return ENOSYS;
  27 }
  28
  29 #define make_stub(stub) \
  30         link_warning(stub, #stub ": this function is not implemented") \
  31         strong_alias(enosys_stub, stub)
  32
  33 #define make_ret_stub(stub) \
  34         link_warning(stub, #stub ": this function is not implemented") \
  35         strong_alias(ret_enosys_stub, stub)
  36
  37 #ifdef __arm__
  38 # define __NR_fadvise64_64 __NR_arm_fadvise64_64
  39 # define __NR_fadvise64 __NR_arm_fadvise64_64
  40 /* ARM always provides funcs w/out syscalls; disable the stubs */
  41 # define __NR_ioperm 0
  42 # define __NR_iopl 0
  43 #endif
  44
  45 #ifdef __mips__
  46 # define __NR_fadvise64_64 __NR_fadvise64
  47 #endif
  48
  49 #ifdef __xtensa__
  50 # define __NR_fadvise64 __NR_fadvise64_64
  51 #endif
  52
  53 #if !defined __NR_accept && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
  54 make_stub(accept)
  55 #endif
  56
  57 #if !defined __NR_accept4 && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__ && defined __UCLIBC_LINUX_SPECIFIC__
  58 make_stub(accept4)
  59 #endif
  60
  61 #if !defined __NR_arch_prctl && defined __UCLIBC_LINUX_SPECIFIC__
  62 make_stub(arch_prctl)
  63 #endif
  64
  65 #if !defined __NR_bdflush && defined __UCLIBC_LINUX_SPECIFIC__
  66 make_stub(bdflush)
  67 #endif
  68
  69 #if !defined __NR_bind && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
  70 make_stub(bind)
  71 #endif
  72
  73 #if !defined __NR_capget && defined __UCLIBC_LINUX_SPECIFIC__
  74 make_stub(capget)
  75 #endif
  76
  77 #if !defined __NR_capset && defined __UCLIBC_LINUX_SPECIFIC__
  78 make_stub(capset)
  79 #endif
  80
  81 #if !defined __NR_connect && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
  82 make_stub(connect)
  83 #endif
  84
  85 #if !defined __NR_epoll_create && defined __UCLIBC_HAS_EPOLL__ \
  86         && !defined __NR_epoll_create1
  87 make_stub(epoll_create)
  88 #endif
  89
  90 #if !defined __NR_epoll_ctl && defined __UCLIBC_HAS_EPOLL__
  91 make_stub(epoll_ctl)
  92 #endif
  93
  94 #if !defined __NR_epoll_pwait && defined __UCLIBC_HAS_EPOLL__
  95 make_stub(epoll_pwait)
  96 #endif
  97
  98 #if !defined __NR_epoll_wait && defined __UCLIBC_HAS_EPOLL__ \
  99                 && !defined __NR_epoll_pwait
 100 make_stub(epoll_wait)
 101 #endif
 102
 103 #if !defined __NR_eventfd && !defined __NR_eventfd2 && defined __UCLIBC_LINUX_SPECIFIC__
 104 make_stub(eventfd)
 105 #endif
 106
 107 #if !defined __NR_fdatasync && !defined __NR_osf_fdatasync
 108 make_stub(fdatasync)
 109 #endif
 110
 111 #ifndef __NR_fgetxattr
 112 make_stub(fgetxattr)
 113 #endif
 114
 115 #ifndef __NR_flistxattr
 116 make_stub(flistxattr)
 117 #endif
 118
 119 #if !defined __ARCH_USE_MMU__ || (!defined __NR_fork && !defined __NR_clone)
 120 make_stub(fork)
 121 #endif
 122
 123 #ifndef __NR_fremovexattr
 124 make_stub(fremovexattr)
 125 #endif
 126
 127 #ifndef __NR_fsetxattr
 128 make_stub(fsetxattr)
 129 #endif
 130
 131 #if !defined __NR_fstatfs && !defined __NR_fstatfs64 \
 132         && defined __UCLIBC_LINUX_SPECIFIC__
 133 make_stub(fstatfs)
 134 #endif
 135
 136 #ifndef __NR_get_kernel_syms
 137 make_stub(get_kernel_syms)
 138 #endif
 139
 140 #if !defined __NR_getpeername && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 141 make_stub(getpeername)
 142 #endif
 143
 144 #if !defined __NR_getpgrp && !defined __NR_getpgid
 145 make_stub(getpgrp)
 146 #endif
 147
 148 #if !defined __NR_getrandom && defined __UCLIBC_LINUX_SPECIFIC__
 149 make_stub(getrandom)
 150 #endif
 151
 152 #if !defined __NR_getsockname && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 153 make_stub(getsockname)
 154 #endif
 155
 156 #if !defined __NR_getsockopt && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 157 make_stub(getsockopt)
 158 #endif
 159
 160 #ifndef __NR_getxattr
 161 make_stub(getxattr)
 162 #endif
 163
 164 #if !defined __NR_inotify_add_watch && defined __UCLIBC_LINUX_SPECIFIC__
 165 make_stub(inotify_add_watch)
 166 #endif
 167
 168 #if !defined __NR_inotify_init && defined __UCLIBC_LINUX_SPECIFIC__ \
 169                 && !defined __NR_inotify_init1
 170 make_stub(inotify_init)
 171 #endif
 172
 173 #if !defined __NR_inotify_init1 && defined __UCLIBC_LINUX_SPECIFIC__
 174 make_stub(inotify_init1)
 175 #endif
 176
 177 #if !defined __NR_inotify_rm_watch && defined __UCLIBC_LINUX_SPECIFIC__
 178 make_stub(inotify_rm_watch)
 179 #endif
 180
 181 #if !defined __NR_ioperm && defined __UCLIBC_LINUX_SPECIFIC__
 182 make_stub(ioperm)
 183 #endif
 184
 185 #if !defined __NR_iopl && defined __UCLIBC_LINUX_SPECIFIC__
 186 make_stub(iopl)
 187 #endif
 188
 189 #ifndef __NR_lgetxattr
 190 make_stub(lgetxattr)
 191 #endif
 192
 193 #if !defined __NR_listen && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 194 make_stub(listen)
 195 #endif
 196
 197 #ifndef __NR_listxattr
 198 make_stub(listxattr)
 199 #endif
 200
 201 #ifndef __NR_llistxattr
 202 make_stub(llistxattr)
 203 #endif
 204
 205 #ifndef __NR_lremovexattr
 206 make_stub(lremovexattr)
 207 #endif
 208
 209 #ifndef __NR_lsetxattr
 210 make_stub(lsetxattr)
 211 #endif
 212
 213 #if !defined __NR_madvise && defined __UCLIBC_LINUX_SPECIFIC__
 214 make_stub(madvise)
 215 #endif
 216
 217 #if !defined __NR_modify_ldt && defined __UCLIBC_LINUX_SPECIFIC__
 218 make_stub(modify_ldt)
 219 #endif
 220
 221 #ifndef __NR_openat
 222 make_stub(openat)
 223 make_stub(openat64)
 224 #endif
 225
 226 #if !defined __NR_personality && defined __UCLIBC_LINUX_SPECIFIC__
 227 make_stub(personality)
 228 #endif
 229
 230 #if !defined __NR_pipe2 && defined __UCLIBC_LINUX_SPECIFIC__
 231 make_stub(pipe2)
 232 #endif
 233
 234 #if !defined __NR_pivot_root && defined __UCLIBC_LINUX_SPECIFIC__
 235 make_stub(pivot_root)
 236 #endif
 237
 238 #if !defined __NR_fadvise64
 239 make_ret_stub(posix_fadvise)
 240 #endif
 241
 242 #if !defined __NR_fadvise64_64 && __WORDSIZE == 32
 243 make_ret_stub(posix_fadvise64)
 244 #endif
 245
 246 #ifndef __NR_madvise
 247 make_ret_stub(posix_madvise)
 248 #endif
 249
 250 #if !defined __NR_ppoll && defined __UCLIBC_LINUX_SPECIFIC__
 251 make_stub(ppoll)
 252 #endif
 253
 254 #if !defined __NR_prctl && defined __UCLIBC_LINUX_SPECIFIC__
 255 make_stub(prctl)
 256 #endif
 257
 258 #if !defined __NR_readahead && defined __UCLIBC_LINUX_SPECIFIC__
 259 make_stub(readahead)
 260 #endif
 261
 262 #if !defined __NR_reboot && defined __UCLIBC_LINUX_SPECIFIC__
 263 make_stub(reboot)
 264 #endif
 265
 266 #if !defined __NR_recv && !defined __NR_socketcall && !defined __NR_recvfrom && defined __UCLIBC_HAS_SOCKET__
 267 make_stub(recv)
 268 #endif
 269
 270 #if !defined __NR_recvfrom && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 271 make_stub(recvfrom)
 272 #endif
 273
 274 #if !defined __NR_recvmsg && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 275 make_stub(recvmsg)
 276 #endif
 277
 278 #if !defined __NR_remap_file_pages && defined __UCLIBC_LINUX_SPECIFIC__
 279 make_stub(remap_file_pages)
 280 #endif
 281
 282 #ifndef __NR_removexattr
 283 make_stub(removexattr)
 284 #endif
 285
 286 #ifndef __NR_renameat
 287 make_stub(renameat)
 288 #endif
 289
 290 #if !defined __NR_sched_getaffinity && defined __UCLIBC_LINUX_SPECIFIC__
 291 make_stub(sched_getaffinity)
 292 #endif
 293
 294 #if !defined __NR_getcpu && defined __UCLIBC_LINUX_SPECIFIC__ && ((defined __x86_64__ && !defined __UCLIBC_HAS_TLS__) || !defined __x86_64__)
 295 make_stub(sched_getcpu)
 296 #endif
 297
 298 #if !defined __NR_sched_setaffinity && defined __UCLIBC_LINUX_SPECIFIC__
 299 make_stub(sched_setaffinity)
 300 #endif
 301
 302 #if !defined __NR_send && !defined __NR_socketcall && !defined __NR_sendto && defined __UCLIBC_HAS_SOCKET__
 303 make_stub(send)
 304 #endif
 305
 306 #if !defined __NR_sendfile && !defined __NR_sendfile64 \
 307         && defined __UCLIBC_LINUX_SPECIFIC__
 308 make_stub(sendfile)
 309 #endif
 310
 311 #if !defined __NR_sendfile64 && !defined __NR_sendfile && defined __UCLIBC_LINUX_SPECIFIC__
 312 make_stub(sendfile64)
 313 #endif
 314
 315 #if !defined __NR_sendmsg && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 316 make_stub(sendmsg)
 317 #endif
 318
 319 #if !defined __NR_sendto && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 320 make_stub(sendto)
 321 #endif
 322
 323 #if ((__WORDSIZE == 32 && (!defined __NR_setfsgid32 && !defined __NR_setfsgid)) || (__WORDSIZE == 64 && !defined __NR_setfsgid)) && defined __UCLIBC_LINUX_SPECIFIC__
 324 make_stub(setfsgid)
 325 #endif
 326
 327 #if ((__WORDSIZE == 32 && (!defined __NR_setfsuid32 && !defined __NR_setfsuid)) || (__WORDSIZE == 64 && !defined __NR_setfsuid)) && defined __UCLIBC_LINUX_SPECIFIC__
 328 make_stub(setfsuid)
 329 #endif
 330
 331 #if !defined __NR_setns && defined __UCLIBC_LINUX_SPECIFIC__
 332 make_stub(setns)
 333 #endif
 334
 335 #if !defined __NR_setresgid32 && !defined __NR_setresgid && defined __UCLIBC_LINUX_SPECIFIC__
 336 make_stub(setresgid)
 337 #endif
 338
 339 #if !defined __NR_setresuid32 && !defined __NR_setresuid && defined __UCLIBC_LINUX_SPECIFIC__
 340 make_stub(setresuid)
 341 #endif
 342
 343 #if !defined __NR_setsockopt && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 344 make_stub(setsockopt)
 345 #endif
 346
 347 #ifndef __NR_setxattr
 348 make_stub(setxattr)
 349 #endif
 350
 351 #if !defined __NR_shutdown && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 352 make_stub(shutdown)
 353 #endif
 354
 355 #if !defined __NR_signalfd4 && !defined __NR_signalfd && defined __UCLIBC_LINUX_SPECIFIC__
 356 make_stub(signalfd)
 357 #endif
 358
 359 #ifndef __NR_rt_sigtimedwait
 360 make_stub(sigtimedwait)
 361 make_stub(sigwaitinfo)
 362 #endif
 363
 364 #ifndef __NR_rt_sigqueueinfo
 365 make_stub(sigqueue)
 366 #endif
 367
 368 #if !defined __NR_socket && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 369 make_stub(socket)
 370 #endif
 371
 372 #if !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 373 make_stub(socketcall)
 374 #endif
 375
 376 #if !defined __NR_socketpair && !defined __NR_socketcall && defined __UCLIBC_HAS_SOCKET__
 377 make_stub(socketpair)
 378 #endif
 379
 380 #if !defined __NR_stime && !defined __NR_settimeofday
 381 make_stub(stime)
 382 make_stub(settimeofday)
 383 #endif
 384
 385 #if !defined __NR_splice && defined __UCLIBC_LINUX_SPECIFIC__
 386 make_stub(splice)
 387 #endif
 388
 389 #if !defined __NR_swapoff && defined __UCLIBC_LINUX_SPECIFIC__
 390 make_stub(swapoff)
 391 #endif
 392
 393 #if !defined __NR_swapon && defined __UCLIBC_LINUX_SPECIFIC__
 394 make_stub(swapon)
 395 #endif
 396
 397 #if !defined __NR_symlink && !defined __NR_symlinkat
 398 make_stub(symlink)
 399 #endif
 400
 401 #if !defined __NR_sync_file_range && defined __UCLIBC_LINUX_SPECIFIC__
 402 make_stub(sync_file_range)
 403 #endif
 404
 405 #if !defined __NR__sysctl && defined __UCLIBC_LINUX_SPECIFIC__
 406 make_stub(_sysctl)
 407 #endif
 408
 409 #if !defined __NR_sysinfo && defined __UCLIBC_LINUX_SPECIFIC__
 410 make_stub(sysinfo)
 411 #endif
 412
 413 #if !defined __NR_tee && defined __UCLIBC_LINUX_SPECIFIC__
 414 make_stub(tee)
 415 #endif
 416
 417 #if !defined __NR_timerfd_create && defined __UCLIBC_LINUX_SPECIFIC__
 418 make_stub(timerfd_create)
 419 #endif
 420
 421 #if !defined __NR_timerfd_settime && defined __UCLIBC_LINUX_SPECIFIC__
 422 make_stub(timerfd_settime)
 423 #endif
 424
 425 #if !defined __NR_timerfd_gettime && defined __UCLIBC_LINUX_SPECIFIC__
 426 make_stub(timerfd_gettime)
 427 #endif
 428
 429 #ifndef __NR_utimensat
 430 make_stub(futimens)
 431 make_stub(utimensat)
 432 # ifndef __NR_lutimes
 433 make_stub(lutimes)
 434 # endif
 435 #endif
 436
 437 #ifndef __NR_utimensat
 438 #if !defined __NR_utime && !defined __NR_utimes
 439 /*make_stub(utime) obsoleted */
 440 make_stub(utimes)
 441 #endif
 442 #endif
 443
 444 #if !defined __NR_umount && !defined __NR_umount2 && defined __UCLIBC_LINUX_SPECIFIC__
 445 make_stub(umount)
 446 #endif
 447
 448 #if !defined __NR_umount2 && defined __UCLIBC_LINUX_SPECIFIC__
 449 make_stub(umount2)
 450 #endif
 451
 452 #if !defined __NR_unshare && defined __UCLIBC_LINUX_SPECIFIC__
 453 make_stub(unshare)
 454 #endif
 455
 456 #if defined __UCLIBC_SV4_DEPRECATED__ && !defined __NR_ustat
 457 make_stub(ustat)
 458 #endif
 459
 460 #if !defined __NR_vhangup && defined __UCLIBC_LINUX_SPECIFIC__
 461 make_stub(vhangup)
 462 #endif
 463
 464 #if !defined __NR_vmsplice && defined __UCLIBC_LINUX_SPECIFIC__
 465 make_stub(vmsplice)
 466 #endif
 467
 468 #endif