thr_syscalls.c revision 198508
1/* 2 * Copyright (C) 2005 David Xu <davidxu@freebsd.org>. 3 * Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org>. 4 * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice(s), this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified other than the possible 13 * addition of one or more copyright notices. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice(s), this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 26 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 28 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD: head/lib/libthr/thread/thr_syscalls.c 198508 2009-10-27 10:55:34Z kib $ 32 */ 33 34/* 35 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au> 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. Neither the name of the author nor the names of any co-contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 */ 63 64#include "namespace.h" 65#include <sys/types.h> 66#include <sys/mman.h> 67#include <sys/param.h> 68#include <sys/select.h> 69#include <sys/signalvar.h> 70#include <sys/socket.h> 71#include <sys/stat.h> 72#include <sys/time.h> 73#include <sys/uio.h> 74#include <sys/wait.h> 75#include <aio.h> 76#include <dirent.h> 77#include <errno.h> 78#include <fcntl.h> 79#include <poll.h> 80#include <signal.h> 81#include <stdarg.h> 82#include <stdio.h> 83#include <stdlib.h> 84#include <string.h> 85#include <termios.h> 86#include <unistd.h> 87#include <pthread.h> 88#include "un-namespace.h" 89 90#include "thr_private.h" 91 92extern int __creat(const char *, mode_t); 93extern int __pselect(int, fd_set *, fd_set *, fd_set *, 94 const struct timespec *, const sigset_t *); 95extern unsigned __sleep(unsigned int); 96extern int __system(const char *); 97extern int __tcdrain(int); 98extern int __usleep(useconds_t); 99extern pid_t __wait(int *); 100extern pid_t __waitpid(pid_t, int *, int); 101extern int __sys_aio_suspend(const struct aiocb * const[], int, 102 const struct timespec *); 103extern int __sys_accept(int, struct sockaddr *, socklen_t *); 104extern int __sys_connect(int, const struct sockaddr *, socklen_t); 105extern int __sys_fsync(int); 106extern int __sys_msync(void *, size_t, int); 107extern int __sys_pselect(int, fd_set *, fd_set *, fd_set *, 108 const struct timespec *, const sigset_t *); 109extern int __sys_poll(struct pollfd *, unsigned, int); 110extern ssize_t __sys_recv(int, void *, size_t, int); 111extern ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *); 112extern ssize_t __sys_recvmsg(int, struct msghdr *, int); 113extern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 114extern int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *, 115 off_t *, int); 116extern ssize_t __sys_sendmsg(int, const struct msghdr *, int); 117extern ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t); 118extern ssize_t __sys_readv(int, const struct iovec *, int); 119extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 120extern ssize_t __sys_writev(int, const struct iovec *, int); 121 122int ___creat(const char *, mode_t); 123int ___pselect(int, fd_set *, fd_set *, fd_set *, 124 const struct timespec *, const sigset_t *); 125unsigned ___sleep(unsigned); 126int ___system(const char *); 127int ___tcdrain(int); 128int ___usleep(useconds_t useconds); 129pid_t ___wait(int *); 130pid_t ___waitpid(pid_t, int *, int); 131int __accept(int, struct sockaddr *, socklen_t *); 132int __aio_suspend(const struct aiocb * const iocbs[], int, 133 const struct timespec *); 134int __close(int); 135int __connect(int, const struct sockaddr *, socklen_t); 136int __fcntl(int, int,...); 137#ifdef SYSCALL_COMPAT 138extern int __fcntl_compat(int, int,...); 139#endif 140int __fsync(int); 141int __msync(void *, size_t, int); 142int __nanosleep(const struct timespec *, struct timespec *); 143int __open(const char *, int,...); 144int __openat(int, const char *, int,...); 145int __poll(struct pollfd *, unsigned int, int); 146ssize_t __read(int, void *buf, size_t); 147ssize_t __readv(int, const struct iovec *, int); 148ssize_t __recvfrom(int, void *, size_t, int f, struct sockaddr *, socklen_t *); 149ssize_t __recvmsg(int, struct msghdr *, int); 150int __select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 151ssize_t __sendmsg(int, const struct msghdr *, int); 152ssize_t __sendto(int, const void *, size_t, int, 153 const struct sockaddr *, socklen_t); 154pid_t __wait3(int *, int, struct rusage *); 155pid_t __wait4(pid_t, int *, int, struct rusage *); 156ssize_t __write(int, const void *, size_t); 157ssize_t __writev(int, const struct iovec *, int); 158 159__weak_reference(__accept, accept); 160 161int 162__accept(int s, struct sockaddr *addr, socklen_t *addrlen) 163{ 164 struct pthread *curthread; 165 int ret; 166 167 curthread = _get_curthread(); 168 _thr_cancel_enter(curthread); 169 ret = __sys_accept(s, addr, addrlen); 170 _thr_cancel_leave(curthread); 171 172 return (ret); 173} 174 175__weak_reference(__aio_suspend, aio_suspend); 176 177int 178__aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 179 timespec *timeout) 180{ 181 struct pthread *curthread = _get_curthread(); 182 int ret; 183 184 _thr_cancel_enter(curthread); 185 ret = __sys_aio_suspend(iocbs, niocb, timeout); 186 _thr_cancel_leave(curthread); 187 188 return (ret); 189} 190 191__weak_reference(__close, close); 192 193int 194__close(int fd) 195{ 196 struct pthread *curthread = _get_curthread(); 197 int ret; 198 199 _thr_cancel_enter(curthread); 200 ret = __sys_close(fd); 201 _thr_cancel_leave(curthread); 202 203 return (ret); 204} 205 206__weak_reference(__connect, connect); 207 208int 209__connect(int fd, const struct sockaddr *name, socklen_t namelen) 210{ 211 struct pthread *curthread = _get_curthread(); 212 int ret; 213 214 _thr_cancel_enter(curthread); 215 ret = __sys_connect(fd, name, namelen); 216 _thr_cancel_leave(curthread); 217 218 return (ret); 219} 220 221__weak_reference(___creat, creat); 222 223int 224___creat(const char *path, mode_t mode) 225{ 226 struct pthread *curthread = _get_curthread(); 227 int ret; 228 229 _thr_cancel_enter(curthread); 230 ret = __creat(path, mode); 231 _thr_cancel_leave(curthread); 232 233 return ret; 234} 235 236__weak_reference(__fcntl, fcntl); 237 238int 239__fcntl(int fd, int cmd,...) 240{ 241 struct pthread *curthread = _get_curthread(); 242 int ret; 243 va_list ap; 244 245 _thr_cancel_enter(curthread); 246 247 va_start(ap, cmd); 248 switch (cmd) { 249 case F_DUPFD: 250 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 251 break; 252 case F_SETFD: 253 case F_SETFL: 254 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 255 break; 256 case F_GETFD: 257 case F_GETFL: 258 ret = __sys_fcntl(fd, cmd); 259 break; 260 default: 261#ifdef SYSCALL_COMPAT 262 ret = __fcntl_compat(fd, cmd, va_arg(ap, void *)); 263#else 264 ret = __sys_fcntl(fd, cmd, va_arg(ap, void *)); 265#endif 266 } 267 va_end(ap); 268 269 _thr_cancel_leave(curthread); 270 271 return (ret); 272} 273 274__weak_reference(__fsync, fsync); 275 276int 277__fsync(int fd) 278{ 279 struct pthread *curthread = _get_curthread(); 280 int ret; 281 282 _thr_cancel_enter(curthread); 283 ret = __sys_fsync(fd); 284 _thr_cancel_leave(curthread); 285 286 return (ret); 287} 288 289__weak_reference(__msync, msync); 290 291int 292__msync(void *addr, size_t len, int flags) 293{ 294 struct pthread *curthread = _get_curthread(); 295 int ret; 296 297 _thr_cancel_enter(curthread); 298 ret = __sys_msync(addr, len, flags); 299 _thr_cancel_leave(curthread); 300 301 return ret; 302} 303 304__weak_reference(__nanosleep, nanosleep); 305 306int 307__nanosleep(const struct timespec *time_to_sleep, 308 struct timespec *time_remaining) 309{ 310 struct pthread *curthread = _get_curthread(); 311 int ret; 312 313 _thr_cancel_enter(curthread); 314 ret = __sys_nanosleep(time_to_sleep, time_remaining); 315 _thr_cancel_leave(curthread); 316 317 return (ret); 318} 319 320__weak_reference(__open, open); 321 322int 323__open(const char *path, int flags,...) 324{ 325 struct pthread *curthread = _get_curthread(); 326 int ret; 327 int mode = 0; 328 va_list ap; 329 330 _thr_cancel_enter(curthread); 331 332 /* Check if the file is being created: */ 333 if (flags & O_CREAT) { 334 /* Get the creation mode: */ 335 va_start(ap, flags); 336 mode = va_arg(ap, int); 337 va_end(ap); 338 } 339 340 ret = __sys_open(path, flags, mode); 341 342 _thr_cancel_leave(curthread); 343 344 return ret; 345} 346 347__weak_reference(__openat, openat); 348 349int 350__openat(int fd, const char *path, int flags, ...) 351{ 352 struct pthread *curthread = _get_curthread(); 353 int ret; 354 int mode = 0; 355 va_list ap; 356 357 _thr_cancel_enter(curthread); 358 359 /* Check if the file is being created: */ 360 if (flags & O_CREAT) { 361 /* Get the creation mode: */ 362 va_start(ap, flags); 363 mode = va_arg(ap, int); 364 va_end(ap); 365 } 366 367 ret = __sys_openat(fd, path, flags, mode); 368 369 _thr_cancel_leave(curthread); 370 371 return ret; 372} 373 374__weak_reference(__poll, poll); 375 376int 377__poll(struct pollfd *fds, unsigned int nfds, int timeout) 378{ 379 struct pthread *curthread = _get_curthread(); 380 int ret; 381 382 _thr_cancel_enter(curthread); 383 ret = __sys_poll(fds, nfds, timeout); 384 _thr_cancel_leave(curthread); 385 386 return ret; 387} 388 389__weak_reference(___pselect, pselect); 390 391int 392___pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 393 const struct timespec *timo, const sigset_t *mask) 394{ 395 struct pthread *curthread = _get_curthread(); 396 int ret; 397 398 _thr_cancel_enter(curthread); 399 ret = __sys_pselect(count, rfds, wfds, efds, timo, mask); 400 _thr_cancel_leave(curthread); 401 402 return (ret); 403} 404 405__weak_reference(__read, read); 406 407ssize_t 408__read(int fd, void *buf, size_t nbytes) 409{ 410 struct pthread *curthread = _get_curthread(); 411 ssize_t ret; 412 413 _thr_cancel_enter(curthread); 414 ret = __sys_read(fd, buf, nbytes); 415 _thr_cancel_leave(curthread); 416 417 return ret; 418} 419 420__weak_reference(__readv, readv); 421 422ssize_t 423__readv(int fd, const struct iovec *iov, int iovcnt) 424{ 425 struct pthread *curthread = _get_curthread(); 426 ssize_t ret; 427 428 _thr_cancel_enter(curthread); 429 ret = __sys_readv(fd, iov, iovcnt); 430 _thr_cancel_leave(curthread); 431 432 return ret; 433} 434 435__weak_reference(__recvfrom, recvfrom); 436 437ssize_t 438__recvfrom(int s, void *b, size_t l, int f, struct sockaddr *from, 439 socklen_t *fl) 440{ 441 struct pthread *curthread = _get_curthread(); 442 ssize_t ret; 443 444 _thr_cancel_enter(curthread); 445 ret = __sys_recvfrom(s, b, l, f, from, fl); 446 _thr_cancel_leave(curthread); 447 return (ret); 448} 449 450__weak_reference(__recvmsg, recvmsg); 451 452ssize_t 453__recvmsg(int s, struct msghdr *m, int f) 454{ 455 struct pthread *curthread = _get_curthread(); 456 ssize_t ret; 457 458 _thr_cancel_enter(curthread); 459 ret = __sys_recvmsg(s, m, f); 460 _thr_cancel_leave(curthread); 461 return (ret); 462} 463 464__weak_reference(__select, select); 465 466int 467__select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 468 struct timeval *timeout) 469{ 470 struct pthread *curthread = _get_curthread(); 471 int ret; 472 473 _thr_cancel_enter(curthread); 474 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 475 _thr_cancel_leave(curthread); 476 return ret; 477} 478 479__weak_reference(__sendmsg, sendmsg); 480 481ssize_t 482__sendmsg(int s, const struct msghdr *m, int f) 483{ 484 struct pthread *curthread = _get_curthread(); 485 ssize_t ret; 486 487 _thr_cancel_enter(curthread); 488 ret = __sys_sendmsg(s, m, f); 489 _thr_cancel_leave(curthread); 490 return (ret); 491} 492 493__weak_reference(__sendto, sendto); 494 495ssize_t 496__sendto(int s, const void *m, size_t l, int f, const struct sockaddr *t, 497 socklen_t tl) 498{ 499 struct pthread *curthread = _get_curthread(); 500 ssize_t ret; 501 502 _thr_cancel_enter(curthread); 503 ret = __sys_sendto(s, m, l, f, t, tl); 504 _thr_cancel_leave(curthread); 505 return (ret); 506} 507 508__weak_reference(___sleep, sleep); 509 510unsigned int 511___sleep(unsigned int seconds) 512{ 513 struct pthread *curthread = _get_curthread(); 514 unsigned int ret; 515 516 _thr_cancel_enter(curthread); 517 ret = __sleep(seconds); 518 _thr_cancel_leave(curthread); 519 520 return (ret); 521} 522 523__weak_reference(___system, system); 524 525int 526___system(const char *string) 527{ 528 struct pthread *curthread = _get_curthread(); 529 int ret; 530 531 _thr_cancel_enter(curthread); 532 ret = __system(string); 533 _thr_cancel_leave(curthread); 534 535 return ret; 536} 537 538__weak_reference(___tcdrain, tcdrain); 539 540int 541___tcdrain(int fd) 542{ 543 struct pthread *curthread = _get_curthread(); 544 int ret; 545 546 _thr_cancel_enter(curthread); 547 ret = __tcdrain(fd); 548 _thr_cancel_leave(curthread); 549 550 return (ret); 551} 552 553__weak_reference(___usleep, usleep); 554 555int 556___usleep(useconds_t useconds) 557{ 558 struct pthread *curthread = _get_curthread(); 559 int ret; 560 561 _thr_cancel_enter(curthread); 562 ret = __usleep(useconds); 563 _thr_cancel_leave(curthread); 564 565 return (ret); 566} 567 568__weak_reference(___wait, wait); 569 570pid_t 571___wait(int *istat) 572{ 573 struct pthread *curthread = _get_curthread(); 574 pid_t ret; 575 576 _thr_cancel_enter(curthread); 577 ret = __wait(istat); 578 _thr_cancel_leave(curthread); 579 580 return ret; 581} 582 583__weak_reference(__wait3, wait3); 584 585pid_t 586__wait3(int *status, int options, struct rusage *rusage) 587{ 588 struct pthread *curthread = _get_curthread(); 589 pid_t ret; 590 591 _thr_cancel_enter(curthread); 592 ret = _wait4(WAIT_ANY, status, options, rusage); 593 _thr_cancel_leave(curthread); 594 595 return (ret); 596} 597 598__weak_reference(__wait4, wait4); 599 600pid_t 601__wait4(pid_t pid, int *status, int options, struct rusage *rusage) 602{ 603 struct pthread *curthread = _get_curthread(); 604 pid_t ret; 605 606 _thr_cancel_enter(curthread); 607 ret = __sys_wait4(pid, status, options, rusage); 608 _thr_cancel_leave(curthread); 609 610 return ret; 611} 612 613__weak_reference(___waitpid, waitpid); 614 615pid_t 616___waitpid(pid_t wpid, int *status, int options) 617{ 618 struct pthread *curthread = _get_curthread(); 619 pid_t ret; 620 621 _thr_cancel_enter(curthread); 622 ret = __waitpid(wpid, status, options); 623 _thr_cancel_leave(curthread); 624 625 return ret; 626} 627 628__weak_reference(__write, write); 629 630ssize_t 631__write(int fd, const void *buf, size_t nbytes) 632{ 633 struct pthread *curthread = _get_curthread(); 634 ssize_t ret; 635 636 _thr_cancel_enter(curthread); 637 ret = __sys_write(fd, buf, nbytes); 638 _thr_cancel_leave(curthread); 639 640 return ret; 641} 642 643__weak_reference(__writev, writev); 644 645ssize_t 646__writev(int fd, const struct iovec *iov, int iovcnt) 647{ 648 struct pthread *curthread = _get_curthread(); 649 ssize_t ret; 650 651 _thr_cancel_enter(curthread); 652 ret = __sys_writev(fd, iov, iovcnt); 653 _thr_cancel_leave(curthread); 654 655 return ret; 656} 657