thr_syscalls.c revision 189549
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 189549 2009-03-09 02:34:02Z davidxu $ 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_poll(struct pollfd *, unsigned, int); 108extern ssize_t __sys_recv(int, void *, size_t, int); 109extern ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *); 110extern ssize_t __sys_recvmsg(int, struct msghdr *, int); 111extern int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 112extern int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *, 113 off_t *, int); 114extern ssize_t __sys_sendmsg(int, const struct msghdr *, int); 115extern ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t); 116extern ssize_t __sys_readv(int, const struct iovec *, int); 117extern pid_t __sys_wait4(pid_t, int *, int, struct rusage *); 118extern ssize_t __sys_writev(int, const struct iovec *, int); 119 120int ___creat(const char *, mode_t); 121int ___pselect(int, fd_set *, fd_set *, fd_set *, 122 const struct timespec *, const sigset_t *); 123unsigned ___sleep(unsigned); 124int ___system(const char *); 125int ___tcdrain(int); 126int ___usleep(useconds_t useconds); 127pid_t ___wait(int *); 128pid_t ___waitpid(pid_t, int *, int); 129int __accept(int, struct sockaddr *, socklen_t *); 130int __aio_suspend(const struct aiocb * const iocbs[], int, 131 const struct timespec *); 132int __close(int); 133int __connect(int, const struct sockaddr *, socklen_t); 134int __fcntl(int, int,...); 135#ifdef SYSCALL_COMPAT 136extern int __fcntl_compat(int, int,...); 137#endif 138int __fsync(int); 139int __msync(void *, size_t, int); 140int __nanosleep(const struct timespec *, struct timespec *); 141int __open(const char *, int,...); 142int __poll(struct pollfd *, unsigned int, int); 143ssize_t __read(int, void *buf, size_t); 144ssize_t __readv(int, const struct iovec *, int); 145ssize_t __recvfrom(int, void *, size_t, int f, struct sockaddr *, socklen_t *); 146ssize_t __recvmsg(int, struct msghdr *, int); 147int __select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 148ssize_t __sendmsg(int, const struct msghdr *, int); 149ssize_t __sendto(int, const void *, size_t, int, 150 const struct sockaddr *, socklen_t); 151pid_t __wait3(int *, int, struct rusage *); 152pid_t __wait4(pid_t, int *, int, struct rusage *); 153ssize_t __write(int, const void *, size_t); 154ssize_t __writev(int, const struct iovec *, int); 155 156__weak_reference(__accept, accept); 157 158int 159__accept(int s, struct sockaddr *addr, socklen_t *addrlen) 160{ 161 struct pthread *curthread; 162 int ret; 163 164 curthread = _get_curthread(); 165 _thr_cancel_enter(curthread); 166 ret = __sys_accept(s, addr, addrlen); 167 _thr_cancel_leave(curthread); 168 169 return (ret); 170} 171 172__weak_reference(__aio_suspend, aio_suspend); 173 174int 175__aio_suspend(const struct aiocb * const iocbs[], int niocb, const struct 176 timespec *timeout) 177{ 178 struct pthread *curthread = _get_curthread(); 179 int ret; 180 181 _thr_cancel_enter(curthread); 182 ret = __sys_aio_suspend(iocbs, niocb, timeout); 183 _thr_cancel_leave(curthread); 184 185 return (ret); 186} 187 188__weak_reference(__close, close); 189 190int 191__close(int fd) 192{ 193 struct pthread *curthread = _get_curthread(); 194 int ret; 195 196 _thr_cancel_enter(curthread); 197 ret = __sys_close(fd); 198 _thr_cancel_leave(curthread); 199 200 return (ret); 201} 202 203__weak_reference(__connect, connect); 204 205int 206__connect(int fd, const struct sockaddr *name, socklen_t namelen) 207{ 208 struct pthread *curthread = _get_curthread(); 209 int ret; 210 211 _thr_cancel_enter(curthread); 212 ret = __sys_connect(fd, name, namelen); 213 _thr_cancel_leave(curthread); 214 215 return (ret); 216} 217 218__weak_reference(___creat, creat); 219 220int 221___creat(const char *path, mode_t mode) 222{ 223 struct pthread *curthread = _get_curthread(); 224 int ret; 225 226 _thr_cancel_enter(curthread); 227 ret = __creat(path, mode); 228 _thr_cancel_leave(curthread); 229 230 return ret; 231} 232 233__weak_reference(__fcntl, fcntl); 234 235int 236__fcntl(int fd, int cmd,...) 237{ 238 struct pthread *curthread = _get_curthread(); 239 int ret; 240 va_list ap; 241 242 _thr_cancel_enter(curthread); 243 244 va_start(ap, cmd); 245 switch (cmd) { 246 case F_DUPFD: 247 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 248 break; 249 case F_SETFD: 250 case F_SETFL: 251 ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); 252 break; 253 case F_GETFD: 254 case F_GETFL: 255 ret = __sys_fcntl(fd, cmd); 256 break; 257 default: 258#ifdef SYSCALL_COMPAT 259 ret = __fcntl_compat(fd, cmd, va_arg(ap, void *)); 260#else 261 ret = EOPNOTSUPP; 262#endif 263 } 264 va_end(ap); 265 266 _thr_cancel_leave(curthread); 267 268 return (ret); 269} 270 271__weak_reference(__fsync, fsync); 272 273int 274__fsync(int fd) 275{ 276 struct pthread *curthread = _get_curthread(); 277 int ret; 278 279 _thr_cancel_enter(curthread); 280 ret = __sys_fsync(fd); 281 _thr_cancel_leave(curthread); 282 283 return (ret); 284} 285 286__weak_reference(__msync, msync); 287 288int 289__msync(void *addr, size_t len, int flags) 290{ 291 struct pthread *curthread = _get_curthread(); 292 int ret; 293 294 _thr_cancel_enter(curthread); 295 ret = __sys_msync(addr, len, flags); 296 _thr_cancel_leave(curthread); 297 298 return ret; 299} 300 301__weak_reference(__nanosleep, nanosleep); 302 303int 304__nanosleep(const struct timespec *time_to_sleep, 305 struct timespec *time_remaining) 306{ 307 struct pthread *curthread = _get_curthread(); 308 int ret; 309 310 _thr_cancel_enter(curthread); 311 ret = __sys_nanosleep(time_to_sleep, time_remaining); 312 _thr_cancel_leave(curthread); 313 314 return (ret); 315} 316 317__weak_reference(__open, open); 318 319int 320__open(const char *path, int flags,...) 321{ 322 struct pthread *curthread = _get_curthread(); 323 int ret; 324 int mode = 0; 325 va_list ap; 326 327 _thr_cancel_enter(curthread); 328 329 /* Check if the file is being created: */ 330 if (flags & O_CREAT) { 331 /* Get the creation mode: */ 332 va_start(ap, flags); 333 mode = va_arg(ap, int); 334 va_end(ap); 335 } 336 337 ret = __sys_open(path, flags, mode); 338 339 _thr_cancel_leave(curthread); 340 341 return ret; 342} 343 344__weak_reference(__poll, poll); 345 346int 347__poll(struct pollfd *fds, unsigned int nfds, int timeout) 348{ 349 struct pthread *curthread = _get_curthread(); 350 int ret; 351 352 _thr_cancel_enter(curthread); 353 ret = __sys_poll(fds, nfds, timeout); 354 _thr_cancel_leave(curthread); 355 356 return ret; 357} 358 359__weak_reference(___pselect, pselect); 360 361int 362___pselect(int count, fd_set *rfds, fd_set *wfds, fd_set *efds, 363 const struct timespec *timo, const sigset_t *mask) 364{ 365 struct pthread *curthread = _get_curthread(); 366 int ret; 367 368 _thr_cancel_enter(curthread); 369 ret = __pselect(count, rfds, wfds, efds, timo, mask); 370 _thr_cancel_leave(curthread); 371 372 return (ret); 373} 374 375__weak_reference(__read, read); 376 377ssize_t 378__read(int fd, void *buf, size_t nbytes) 379{ 380 struct pthread *curthread = _get_curthread(); 381 ssize_t ret; 382 383 _thr_cancel_enter(curthread); 384 ret = __sys_read(fd, buf, nbytes); 385 _thr_cancel_leave(curthread); 386 387 return ret; 388} 389 390__weak_reference(__readv, readv); 391 392ssize_t 393__readv(int fd, const struct iovec *iov, int iovcnt) 394{ 395 struct pthread *curthread = _get_curthread(); 396 ssize_t ret; 397 398 _thr_cancel_enter(curthread); 399 ret = __sys_readv(fd, iov, iovcnt); 400 _thr_cancel_leave(curthread); 401 402 return ret; 403} 404 405__weak_reference(__recvfrom, recvfrom); 406 407ssize_t 408__recvfrom(int s, void *b, size_t l, int f, struct sockaddr *from, 409 socklen_t *fl) 410{ 411 struct pthread *curthread = _get_curthread(); 412 ssize_t ret; 413 414 _thr_cancel_enter(curthread); 415 ret = __sys_recvfrom(s, b, l, f, from, fl); 416 _thr_cancel_leave(curthread); 417 return (ret); 418} 419 420__weak_reference(__recvmsg, recvmsg); 421 422ssize_t 423__recvmsg(int s, struct msghdr *m, int f) 424{ 425 struct pthread *curthread = _get_curthread(); 426 ssize_t ret; 427 428 _thr_cancel_enter(curthread); 429 ret = __sys_recvmsg(s, m, f); 430 _thr_cancel_leave(curthread); 431 return (ret); 432} 433 434__weak_reference(__select, select); 435 436int 437__select(int numfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, 438 struct timeval *timeout) 439{ 440 struct pthread *curthread = _get_curthread(); 441 int ret; 442 443 _thr_cancel_enter(curthread); 444 ret = __sys_select(numfds, readfds, writefds, exceptfds, timeout); 445 _thr_cancel_leave(curthread); 446 return ret; 447} 448 449__weak_reference(__sendmsg, sendmsg); 450 451ssize_t 452__sendmsg(int s, const struct msghdr *m, int f) 453{ 454 struct pthread *curthread = _get_curthread(); 455 ssize_t ret; 456 457 _thr_cancel_enter(curthread); 458 ret = __sys_sendmsg(s, m, f); 459 _thr_cancel_leave(curthread); 460 return (ret); 461} 462 463__weak_reference(__sendto, sendto); 464 465ssize_t 466__sendto(int s, const void *m, size_t l, int f, const struct sockaddr *t, 467 socklen_t tl) 468{ 469 struct pthread *curthread = _get_curthread(); 470 ssize_t ret; 471 472 _thr_cancel_enter(curthread); 473 ret = __sys_sendto(s, m, l, f, t, tl); 474 _thr_cancel_leave(curthread); 475 return (ret); 476} 477 478__weak_reference(___sleep, sleep); 479 480unsigned int 481___sleep(unsigned int seconds) 482{ 483 struct pthread *curthread = _get_curthread(); 484 unsigned int ret; 485 486 _thr_cancel_enter(curthread); 487 ret = __sleep(seconds); 488 _thr_cancel_leave(curthread); 489 490 return (ret); 491} 492 493__weak_reference(___system, system); 494 495int 496___system(const char *string) 497{ 498 struct pthread *curthread = _get_curthread(); 499 int ret; 500 501 _thr_cancel_enter(curthread); 502 ret = __system(string); 503 _thr_cancel_leave(curthread); 504 505 return ret; 506} 507 508__weak_reference(___tcdrain, tcdrain); 509 510int 511___tcdrain(int fd) 512{ 513 struct pthread *curthread = _get_curthread(); 514 int ret; 515 516 _thr_cancel_enter(curthread); 517 ret = __tcdrain(fd); 518 _thr_cancel_leave(curthread); 519 520 return (ret); 521} 522 523__weak_reference(___usleep, usleep); 524 525int 526___usleep(useconds_t useconds) 527{ 528 struct pthread *curthread = _get_curthread(); 529 int ret; 530 531 _thr_cancel_enter(curthread); 532 ret = __usleep(useconds); 533 _thr_cancel_leave(curthread); 534 535 return (ret); 536} 537 538__weak_reference(___wait, wait); 539 540pid_t 541___wait(int *istat) 542{ 543 struct pthread *curthread = _get_curthread(); 544 pid_t ret; 545 546 _thr_cancel_enter(curthread); 547 ret = __wait(istat); 548 _thr_cancel_leave(curthread); 549 550 return ret; 551} 552 553__weak_reference(__wait3, wait3); 554 555pid_t 556__wait3(int *status, int options, struct rusage *rusage) 557{ 558 struct pthread *curthread = _get_curthread(); 559 pid_t ret; 560 561 _thr_cancel_enter(curthread); 562 ret = _wait4(WAIT_ANY, status, options, rusage); 563 _thr_cancel_leave(curthread); 564 565 return (ret); 566} 567 568__weak_reference(__wait4, wait4); 569 570pid_t 571__wait4(pid_t pid, int *status, int options, struct rusage *rusage) 572{ 573 struct pthread *curthread = _get_curthread(); 574 pid_t ret; 575 576 _thr_cancel_enter(curthread); 577 ret = __sys_wait4(pid, status, options, rusage); 578 _thr_cancel_leave(curthread); 579 580 return ret; 581} 582 583__weak_reference(___waitpid, waitpid); 584 585pid_t 586___waitpid(pid_t wpid, int *status, int options) 587{ 588 struct pthread *curthread = _get_curthread(); 589 pid_t ret; 590 591 _thr_cancel_enter(curthread); 592 ret = __waitpid(wpid, status, options); 593 _thr_cancel_leave(curthread); 594 595 return ret; 596} 597 598__weak_reference(__write, write); 599 600ssize_t 601__write(int fd, const void *buf, size_t nbytes) 602{ 603 struct pthread *curthread = _get_curthread(); 604 ssize_t ret; 605 606 _thr_cancel_enter(curthread); 607 ret = __sys_write(fd, buf, nbytes); 608 _thr_cancel_leave(curthread); 609 610 return ret; 611} 612 613__weak_reference(__writev, writev); 614 615ssize_t 616__writev(int fd, const struct iovec *iov, int iovcnt) 617{ 618 struct pthread *curthread = _get_curthread(); 619 ssize_t ret; 620 621 _thr_cancel_enter(curthread); 622 ret = __sys_writev(fd, iov, iovcnt); 623 _thr_cancel_leave(curthread); 624 625 return ret; 626} 627