1 /* 2 * Linux syscalls 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <stdarg.h> 23 #include <string.h> 24 #include <elf.h> 25 #include <endian.h> 26 #include <errno.h> 27 #include <unistd.h> 28 #include <fcntl.h> 29 #include <time.h> 30 #include <sys/types.h> 31 #include <sys/wait.h> 32 #include <sys/time.h> 33 #include <sys/stat.h> 34 #include <sys/mount.h> 35 #include <sys/resource.h> 36 #include <sys/mman.h> 37 #include <sys/swap.h> 38 #include <signal.h> 39 #include <sched.h> 40 #include <sys/socket.h> 41 #include <sys/uio.h> 42 #include <sys/poll.h> 43 #include <sys/times.h> 44 //#include <sys/user.h> 45 #include <netinet/tcp.h> 46 47 #define termios host_termios 48 #define winsize host_winsize 49 #define termio host_termio 50 #define sgttyb host_sgttyb /* same as target */ 51 #define tchars host_tchars /* same as target */ 52 #define ltchars host_ltchars /* same as target */ 53 54 #include <linux/termios.h> 55 #include <linux/unistd.h> 56 #include <linux/utsname.h> 57 #include <linux/cdrom.h> 58 #include <linux/hdreg.h> 59 #include <linux/soundcard.h> 60 #include <linux/dirent.h> 61 #include <linux/kd.h> 62 63 #include "qemu.h" 64 65 //#define DEBUG 66 67 //#include <linux/msdos_fs.h> 68 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 69 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 70 71 void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info); 72 void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo); 73 long do_sigreturn(CPUX86State *env); 74 long do_rt_sigreturn(CPUX86State *env); 75 76 #define __NR_sys_uname __NR_uname 77 #define __NR_sys_getcwd1 __NR_getcwd 78 #define __NR_sys_statfs __NR_statfs 79 #define __NR_sys_fstatfs __NR_fstatfs 80 #define __NR_sys_getdents __NR_getdents 81 #define __NR_sys_getdents64 __NR_getdents64 82 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 83 84 #if defined(__alpha__) || defined (__ia64__) 85 #define __NR__llseek __NR_lseek 86 #endif 87 88 #ifdef __NR_gettid 89 _syscall0(int, gettid) 90 #else 91 static int gettid(void) { 92 return -ENOSYS; 93 } 94 #endif 95 _syscall1(int,sys_uname,struct new_utsname *,buf) 96 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 97 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 98 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 99 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 100 loff_t *, res, uint, wh); 101 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf) 102 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf) 103 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 104 #ifdef __NR_exit_group 105 _syscall1(int,exit_group,int,error_code) 106 #endif 107 108 extern int personality(int); 109 extern int flock(int, int); 110 extern int setfsuid(int); 111 extern int setfsgid(int); 112 extern int setresuid(uid_t, uid_t, uid_t); 113 extern int getresuid(uid_t *, uid_t *, uid_t *); 114 extern int setresgid(gid_t, gid_t, gid_t); 115 extern int getresgid(gid_t *, gid_t *, gid_t *); 116 extern int setgroups(int, gid_t *); 117 118 static inline long get_errno(long ret) 119 { 120 if (ret == -1) 121 return -errno; 122 else 123 return ret; 124 } 125 126 static inline int is_error(long ret) 127 { 128 return (unsigned long)ret >= (unsigned long)(-4096); 129 } 130 131 static char *target_brk; 132 static char *target_original_brk; 133 134 void target_set_brk(char *new_brk) 135 { 136 target_brk = new_brk; 137 target_original_brk = new_brk; 138 } 139 140 static long do_brk(char *new_brk) 141 { 142 char *brk_page; 143 long mapped_addr; 144 int new_alloc_size; 145 146 if (!new_brk) 147 return (long)target_brk; 148 if (new_brk < target_original_brk) 149 return -ENOMEM; 150 151 brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk); 152 153 /* If the new brk is less than this, set it and we're done... */ 154 if (new_brk < brk_page) { 155 target_brk = new_brk; 156 return (long)target_brk; 157 } 158 159 /* We need to allocate more memory after the brk... */ 160 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 161 mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size, 162 PROT_READ|PROT_WRITE, 163 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 164 if (is_error(mapped_addr)) { 165 return mapped_addr; 166 } else { 167 target_brk = new_brk; 168 return (long)target_brk; 169 } 170 } 171 172 static inline fd_set *target_to_host_fds(fd_set *fds, 173 target_long *target_fds, int n) 174 { 175 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 176 return (fd_set *)target_fds; 177 #else 178 int i, b; 179 if (target_fds) { 180 FD_ZERO(fds); 181 for(i = 0;i < n; i++) { 182 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 183 (i & (TARGET_LONG_BITS - 1))) & 1; 184 if (b) 185 FD_SET(i, fds); 186 } 187 return fds; 188 } else { 189 return NULL; 190 } 191 #endif 192 } 193 194 static inline void host_to_target_fds(target_long *target_fds, 195 fd_set *fds, int n) 196 { 197 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 198 /* nothing to do */ 199 #else 200 int i, nw, j, k; 201 target_long v; 202 203 if (target_fds) { 204 nw = n / TARGET_LONG_BITS; 205 k = 0; 206 for(i = 0;i < nw; i++) { 207 v = 0; 208 for(j = 0; j < TARGET_LONG_BITS; j++) { 209 v |= ((FD_ISSET(k, fds) != 0) << j); 210 k++; 211 } 212 target_fds[i] = tswapl(v); 213 } 214 } 215 #endif 216 } 217 218 static inline void target_to_host_timeval(struct timeval *tv, 219 const struct target_timeval *target_tv) 220 { 221 tv->tv_sec = tswapl(target_tv->tv_sec); 222 tv->tv_usec = tswapl(target_tv->tv_usec); 223 } 224 225 static inline void host_to_target_timeval(struct target_timeval *target_tv, 226 const struct timeval *tv) 227 { 228 target_tv->tv_sec = tswapl(tv->tv_sec); 229 target_tv->tv_usec = tswapl(tv->tv_usec); 230 } 231 232 233 static long do_select(long n, 234 target_long *target_rfds, target_long *target_wfds, 235 target_long *target_efds, struct target_timeval *target_tv) 236 { 237 fd_set rfds, wfds, efds; 238 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 239 struct timeval tv, *tv_ptr; 240 long ret; 241 242 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 243 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 244 efds_ptr = target_to_host_fds(&efds, target_efds, n); 245 246 if (target_tv) { 247 target_to_host_timeval(&tv, target_tv); 248 tv_ptr = &tv; 249 } else { 250 tv_ptr = NULL; 251 } 252 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 253 if (!is_error(ret)) { 254 host_to_target_fds(target_rfds, rfds_ptr, n); 255 host_to_target_fds(target_wfds, wfds_ptr, n); 256 host_to_target_fds(target_efds, efds_ptr, n); 257 258 if (target_tv) { 259 host_to_target_timeval(target_tv, &tv); 260 } 261 } 262 return ret; 263 } 264 265 static inline void target_to_host_sockaddr(struct sockaddr *addr, 266 struct target_sockaddr *target_addr, 267 socklen_t len) 268 { 269 memcpy(addr, target_addr, len); 270 addr->sa_family = tswap16(target_addr->sa_family); 271 } 272 273 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr, 274 struct sockaddr *addr, 275 socklen_t len) 276 { 277 memcpy(target_addr, addr, len); 278 target_addr->sa_family = tswap16(addr->sa_family); 279 } 280 281 static inline void target_to_host_cmsg(struct msghdr *msgh, 282 struct target_msghdr *target_msgh) 283 { 284 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 285 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 286 socklen_t space = 0; 287 288 while (cmsg && target_cmsg) { 289 void *data = CMSG_DATA(cmsg); 290 void *target_data = TARGET_CMSG_DATA(target_cmsg); 291 292 int len = tswapl(target_cmsg->cmsg_len) 293 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 294 295 space += CMSG_SPACE(len); 296 if (space > msgh->msg_controllen) { 297 space -= CMSG_SPACE(len); 298 gemu_log("Host cmsg overflow"); 299 break; 300 } 301 302 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 303 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 304 cmsg->cmsg_len = CMSG_LEN(len); 305 306 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 307 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 308 memcpy(data, target_data, len); 309 } else { 310 int *fd = (int *)data; 311 int *target_fd = (int *)target_data; 312 int i, numfds = len / sizeof(int); 313 314 for (i = 0; i < numfds; i++) 315 fd[i] = tswap32(target_fd[i]); 316 } 317 318 cmsg = CMSG_NXTHDR(msgh, cmsg); 319 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 320 } 321 322 msgh->msg_controllen = space; 323 } 324 325 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 326 struct msghdr *msgh) 327 { 328 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 329 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 330 socklen_t space = 0; 331 332 while (cmsg && target_cmsg) { 333 void *data = CMSG_DATA(cmsg); 334 void *target_data = TARGET_CMSG_DATA(target_cmsg); 335 336 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 337 338 space += TARGET_CMSG_SPACE(len); 339 if (space > tswapl(target_msgh->msg_controllen)) { 340 space -= TARGET_CMSG_SPACE(len); 341 gemu_log("Target cmsg overflow"); 342 break; 343 } 344 345 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 346 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 347 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 348 349 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 350 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 351 memcpy(target_data, data, len); 352 } else { 353 int *fd = (int *)data; 354 int *target_fd = (int *)target_data; 355 int i, numfds = len / sizeof(int); 356 357 for (i = 0; i < numfds; i++) 358 target_fd[i] = tswap32(fd[i]); 359 } 360 361 cmsg = CMSG_NXTHDR(msgh, cmsg); 362 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 363 } 364 365 msgh->msg_controllen = tswapl(space); 366 } 367 368 static long do_setsockopt(int sockfd, int level, int optname, 369 void *optval, socklen_t optlen) 370 { 371 if (level == SOL_TCP) { 372 /* TCP options all take an 'int' value. */ 373 int val; 374 375 if (optlen < sizeof(uint32_t)) 376 return -EINVAL; 377 378 val = tswap32(*(uint32_t *)optval); 379 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 380 } 381 382 else if (level != SOL_SOCKET) { 383 gemu_log("Unsupported setsockopt level: %d\n", level); 384 return -ENOSYS; 385 } 386 387 switch (optname) { 388 /* Options with 'int' argument. */ 389 case SO_DEBUG: 390 case SO_REUSEADDR: 391 case SO_TYPE: 392 case SO_ERROR: 393 case SO_DONTROUTE: 394 case SO_BROADCAST: 395 case SO_SNDBUF: 396 case SO_RCVBUF: 397 case SO_KEEPALIVE: 398 case SO_OOBINLINE: 399 case SO_NO_CHECK: 400 case SO_PRIORITY: 401 case SO_BSDCOMPAT: 402 case SO_PASSCRED: 403 case SO_TIMESTAMP: 404 case SO_RCVLOWAT: 405 case SO_RCVTIMEO: 406 case SO_SNDTIMEO: 407 { 408 int val; 409 if (optlen < sizeof(uint32_t)) 410 return -EINVAL; 411 val = tswap32(*(uint32_t *)optval); 412 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 413 } 414 415 default: 416 gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname); 417 return -ENOSYS; 418 } 419 } 420 421 static long do_getsockopt(int sockfd, int level, int optname, 422 void *optval, socklen_t *optlen) 423 { 424 gemu_log("getsockopt not yet supported\n"); 425 return -ENOSYS; 426 } 427 428 static long do_socketcall(int num, int32_t *vptr) 429 { 430 long ret; 431 432 switch(num) { 433 case SOCKOP_socket: 434 { 435 int domain = tswap32(vptr[0]); 436 int type = tswap32(vptr[1]); 437 int protocol = tswap32(vptr[2]); 438 439 ret = get_errno(socket(domain, type, protocol)); 440 } 441 break; 442 case SOCKOP_bind: 443 { 444 int sockfd = tswap32(vptr[0]); 445 void *target_addr = (void *)tswap32(vptr[1]); 446 socklen_t addrlen = tswap32(vptr[2]); 447 void *addr = alloca(addrlen); 448 449 target_to_host_sockaddr(addr, target_addr, addrlen); 450 ret = get_errno(bind(sockfd, addr, addrlen)); 451 } 452 break; 453 case SOCKOP_connect: 454 { 455 int sockfd = tswap32(vptr[0]); 456 void *target_addr = (void *)tswap32(vptr[1]); 457 socklen_t addrlen = tswap32(vptr[2]); 458 void *addr = alloca(addrlen); 459 460 target_to_host_sockaddr(addr, target_addr, addrlen); 461 ret = get_errno(connect(sockfd, addr, addrlen)); 462 } 463 break; 464 case SOCKOP_listen: 465 { 466 int sockfd = tswap32(vptr[0]); 467 int backlog = tswap32(vptr[1]); 468 469 ret = get_errno(listen(sockfd, backlog)); 470 } 471 break; 472 case SOCKOP_accept: 473 { 474 int sockfd = tswap32(vptr[0]); 475 void *target_addr = (void *)tswap32(vptr[1]); 476 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 477 socklen_t addrlen = tswap32(*target_addrlen); 478 void *addr = alloca(addrlen); 479 480 ret = get_errno(accept(sockfd, addr, &addrlen)); 481 if (!is_error(ret)) { 482 host_to_target_sockaddr(target_addr, addr, addrlen); 483 *target_addrlen = tswap32(addrlen); 484 } 485 } 486 break; 487 case SOCKOP_getsockname: 488 { 489 int sockfd = tswap32(vptr[0]); 490 void *target_addr = (void *)tswap32(vptr[1]); 491 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 492 socklen_t addrlen = tswap32(*target_addrlen); 493 void *addr = alloca(addrlen); 494 495 ret = get_errno(getsockname(sockfd, addr, &addrlen)); 496 if (!is_error(ret)) { 497 host_to_target_sockaddr(target_addr, addr, addrlen); 498 *target_addrlen = tswap32(addrlen); 499 } 500 } 501 break; 502 case SOCKOP_getpeername: 503 { 504 int sockfd = tswap32(vptr[0]); 505 void *target_addr = (void *)tswap32(vptr[1]); 506 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 507 socklen_t addrlen = tswap32(*target_addrlen); 508 void *addr = alloca(addrlen); 509 510 ret = get_errno(getpeername(sockfd, addr, &addrlen)); 511 if (!is_error(ret)) { 512 host_to_target_sockaddr(target_addr, addr, addrlen); 513 *target_addrlen = tswap32(addrlen); 514 } 515 } 516 break; 517 case SOCKOP_socketpair: 518 { 519 int domain = tswap32(vptr[0]); 520 int type = tswap32(vptr[1]); 521 int protocol = tswap32(vptr[2]); 522 int32_t *target_tab = (void *)tswap32(vptr[3]); 523 int tab[2]; 524 525 ret = get_errno(socketpair(domain, type, protocol, tab)); 526 if (!is_error(ret)) { 527 target_tab[0] = tswap32(tab[0]); 528 target_tab[1] = tswap32(tab[1]); 529 } 530 } 531 break; 532 case SOCKOP_send: 533 { 534 int sockfd = tswap32(vptr[0]); 535 void *msg = (void *)tswap32(vptr[1]); 536 size_t len = tswap32(vptr[2]); 537 int flags = tswap32(vptr[3]); 538 539 ret = get_errno(send(sockfd, msg, len, flags)); 540 } 541 break; 542 case SOCKOP_recv: 543 { 544 int sockfd = tswap32(vptr[0]); 545 void *msg = (void *)tswap32(vptr[1]); 546 size_t len = tswap32(vptr[2]); 547 int flags = tswap32(vptr[3]); 548 549 ret = get_errno(recv(sockfd, msg, len, flags)); 550 } 551 break; 552 case SOCKOP_sendto: 553 { 554 int sockfd = tswap32(vptr[0]); 555 void *msg = (void *)tswap32(vptr[1]); 556 size_t len = tswap32(vptr[2]); 557 int flags = tswap32(vptr[3]); 558 void *target_addr = (void *)tswap32(vptr[4]); 559 socklen_t addrlen = tswap32(vptr[5]); 560 void *addr = alloca(addrlen); 561 562 target_to_host_sockaddr(addr, target_addr, addrlen); 563 ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen)); 564 } 565 break; 566 case SOCKOP_recvfrom: 567 { 568 int sockfd = tswap32(vptr[0]); 569 void *msg = (void *)tswap32(vptr[1]); 570 size_t len = tswap32(vptr[2]); 571 int flags = tswap32(vptr[3]); 572 void *target_addr = (void *)tswap32(vptr[4]); 573 uint32_t *target_addrlen = (void *)tswap32(vptr[5]); 574 socklen_t addrlen = tswap32(*target_addrlen); 575 void *addr = alloca(addrlen); 576 577 ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen)); 578 if (!is_error(ret)) { 579 host_to_target_sockaddr(target_addr, addr, addrlen); 580 *target_addrlen = tswap32(addrlen); 581 } 582 } 583 break; 584 case SOCKOP_shutdown: 585 { 586 int sockfd = tswap32(vptr[0]); 587 int how = tswap32(vptr[1]); 588 589 ret = get_errno(shutdown(sockfd, how)); 590 } 591 break; 592 case SOCKOP_sendmsg: 593 case SOCKOP_recvmsg: 594 { 595 int fd; 596 struct target_msghdr *msgp; 597 struct msghdr msg; 598 int flags, count, i; 599 struct iovec *vec; 600 struct target_iovec *target_vec; 601 602 msgp = (void *)tswap32(vptr[1]); 603 msg.msg_name = (void *)tswapl(msgp->msg_name); 604 msg.msg_namelen = tswapl(msgp->msg_namelen); 605 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 606 msg.msg_control = alloca(msg.msg_controllen); 607 msg.msg_flags = tswap32(msgp->msg_flags); 608 609 count = tswapl(msgp->msg_iovlen); 610 vec = alloca(count * sizeof(struct iovec)); 611 target_vec = (void *)tswapl(msgp->msg_iov); 612 for(i = 0;i < count; i++) { 613 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 614 vec[i].iov_len = tswapl(target_vec[i].iov_len); 615 } 616 msg.msg_iovlen = count; 617 msg.msg_iov = vec; 618 619 fd = tswap32(vptr[0]); 620 flags = tswap32(vptr[2]); 621 if (num == SOCKOP_sendmsg) { 622 target_to_host_cmsg(&msg, msgp); 623 ret = get_errno(sendmsg(fd, &msg, flags)); 624 } else { 625 ret = get_errno(recvmsg(fd, &msg, flags)); 626 if (!is_error(ret)) 627 host_to_target_cmsg(msgp, &msg); 628 } 629 } 630 break; 631 case SOCKOP_setsockopt: 632 { 633 int sockfd = tswap32(vptr[0]); 634 int level = tswap32(vptr[1]); 635 int optname = tswap32(vptr[2]); 636 void *optval = (void *)tswap32(vptr[3]); 637 socklen_t optlen = tswap32(vptr[4]); 638 639 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 640 } 641 break; 642 case SOCKOP_getsockopt: 643 { 644 int sockfd = tswap32(vptr[0]); 645 int level = tswap32(vptr[1]); 646 int optname = tswap32(vptr[2]); 647 void *optval = (void *)tswap32(vptr[3]); 648 uint32_t *target_len = (void *)tswap32(vptr[4]); 649 socklen_t optlen = tswap32(*target_len); 650 651 ret = do_getsockopt(sockfd, level, optname, optval, &optlen); 652 if (!is_error(ret)) 653 *target_len = tswap32(optlen); 654 } 655 break; 656 default: 657 gemu_log("Unsupported socketcall: %d\n", num); 658 ret = -ENOSYS; 659 break; 660 } 661 return ret; 662 } 663 664 /* kernel structure types definitions */ 665 #define IFNAMSIZ 16 666 667 #define STRUCT(name, list...) STRUCT_ ## name, 668 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 669 enum { 670 #include "syscall_types.h" 671 }; 672 #undef STRUCT 673 #undef STRUCT_SPECIAL 674 675 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 676 #define STRUCT_SPECIAL(name) 677 #include "syscall_types.h" 678 #undef STRUCT 679 #undef STRUCT_SPECIAL 680 681 typedef struct IOCTLEntry { 682 int target_cmd; 683 int host_cmd; 684 const char *name; 685 int access; 686 const argtype arg_type[5]; 687 } IOCTLEntry; 688 689 #define IOC_R 0x0001 690 #define IOC_W 0x0002 691 #define IOC_RW (IOC_R | IOC_W) 692 693 #define MAX_STRUCT_SIZE 4096 694 695 const IOCTLEntry ioctl_entries[] = { 696 #define IOCTL(cmd, access, types...) \ 697 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 698 #include "ioctls.h" 699 { 0, 0, }, 700 }; 701 702 static long do_ioctl(long fd, long cmd, long arg) 703 { 704 const IOCTLEntry *ie; 705 const argtype *arg_type; 706 long ret; 707 uint8_t buf_temp[MAX_STRUCT_SIZE]; 708 709 ie = ioctl_entries; 710 for(;;) { 711 if (ie->target_cmd == 0) { 712 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 713 return -ENOSYS; 714 } 715 if (ie->target_cmd == cmd) 716 break; 717 ie++; 718 } 719 arg_type = ie->arg_type; 720 #if defined(DEBUG) 721 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 722 #endif 723 switch(arg_type[0]) { 724 case TYPE_NULL: 725 /* no argument */ 726 ret = get_errno(ioctl(fd, ie->host_cmd)); 727 break; 728 case TYPE_PTRVOID: 729 case TYPE_INT: 730 /* int argment */ 731 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 732 break; 733 case TYPE_PTR: 734 arg_type++; 735 switch(ie->access) { 736 case IOC_R: 737 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 738 if (!is_error(ret)) { 739 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET); 740 } 741 break; 742 case IOC_W: 743 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST); 744 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 745 break; 746 default: 747 case IOC_RW: 748 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST); 749 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 750 if (!is_error(ret)) { 751 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET); 752 } 753 break; 754 } 755 break; 756 default: 757 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 758 ret = -ENOSYS; 759 break; 760 } 761 return ret; 762 } 763 764 bitmask_transtbl iflag_tbl[] = { 765 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 766 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 767 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 768 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 769 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 770 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 771 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 772 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 773 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 774 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 775 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 776 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 777 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 778 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 779 { 0, 0, 0, 0 } 780 }; 781 782 bitmask_transtbl oflag_tbl[] = { 783 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 784 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 785 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 786 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 787 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 788 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 789 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 790 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 791 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 792 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 793 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 794 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 795 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 796 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 797 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 798 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 799 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 800 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 801 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 802 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 803 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 804 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 805 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 806 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 807 { 0, 0, 0, 0 } 808 }; 809 810 bitmask_transtbl cflag_tbl[] = { 811 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 812 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 813 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 814 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 815 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 816 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 817 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 818 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 819 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 820 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 821 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 822 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 823 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 824 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 825 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 826 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 827 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 828 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 829 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 830 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 831 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 832 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 833 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 834 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 835 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 836 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 837 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 838 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 839 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 840 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 841 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 842 { 0, 0, 0, 0 } 843 }; 844 845 bitmask_transtbl lflag_tbl[] = { 846 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 847 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 848 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 849 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 850 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 851 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 852 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 853 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 854 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 855 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 856 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 857 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 858 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 859 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 860 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 861 { 0, 0, 0, 0 } 862 }; 863 864 static void target_to_host_termios (void *dst, const void *src) 865 { 866 struct host_termios *host = dst; 867 const struct target_termios *target = src; 868 869 host->c_iflag = 870 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 871 host->c_oflag = 872 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 873 host->c_cflag = 874 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 875 host->c_lflag = 876 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 877 host->c_line = target->c_line; 878 879 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 880 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 881 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 882 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 883 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 884 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 885 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 886 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 887 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 888 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 889 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 890 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 891 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 892 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 893 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 894 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 895 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 896 } 897 898 static void host_to_target_termios (void *dst, const void *src) 899 { 900 struct target_termios *target = dst; 901 const struct host_termios *host = src; 902 903 target->c_iflag = 904 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 905 target->c_oflag = 906 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 907 target->c_cflag = 908 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 909 target->c_lflag = 910 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 911 target->c_line = host->c_line; 912 913 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 914 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 915 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 916 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 917 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 918 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 919 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 920 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 921 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 922 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 923 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 924 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 925 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 926 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 927 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 928 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 929 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 930 } 931 932 StructEntry struct_termios_def = { 933 .convert = { host_to_target_termios, target_to_host_termios }, 934 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 935 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 936 }; 937 938 #ifdef TARGET_I386 939 940 /* NOTE: there is really one LDT for all the threads */ 941 uint8_t *ldt_table; 942 943 static int read_ldt(void *ptr, unsigned long bytecount) 944 { 945 int size; 946 947 if (!ldt_table) 948 return 0; 949 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 950 if (size > bytecount) 951 size = bytecount; 952 memcpy(ptr, ldt_table, size); 953 return size; 954 } 955 956 /* XXX: add locking support */ 957 static int write_ldt(CPUX86State *env, 958 void *ptr, unsigned long bytecount, int oldmode) 959 { 960 struct target_modify_ldt_ldt_s ldt_info; 961 int seg_32bit, contents, read_exec_only, limit_in_pages; 962 int seg_not_present, useable; 963 uint32_t *lp, entry_1, entry_2; 964 965 if (bytecount != sizeof(ldt_info)) 966 return -EINVAL; 967 memcpy(&ldt_info, ptr, sizeof(ldt_info)); 968 tswap32s(&ldt_info.entry_number); 969 tswapls((long *)&ldt_info.base_addr); 970 tswap32s(&ldt_info.limit); 971 tswap32s(&ldt_info.flags); 972 973 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 974 return -EINVAL; 975 seg_32bit = ldt_info.flags & 1; 976 contents = (ldt_info.flags >> 1) & 3; 977 read_exec_only = (ldt_info.flags >> 3) & 1; 978 limit_in_pages = (ldt_info.flags >> 4) & 1; 979 seg_not_present = (ldt_info.flags >> 5) & 1; 980 useable = (ldt_info.flags >> 6) & 1; 981 982 if (contents == 3) { 983 if (oldmode) 984 return -EINVAL; 985 if (seg_not_present == 0) 986 return -EINVAL; 987 } 988 /* allocate the LDT */ 989 if (!ldt_table) { 990 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 991 if (!ldt_table) 992 return -ENOMEM; 993 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 994 env->ldt.base = ldt_table; 995 env->ldt.limit = 0xffff; 996 } 997 998 /* NOTE: same code as Linux kernel */ 999 /* Allow LDTs to be cleared by the user. */ 1000 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1001 if (oldmode || 1002 (contents == 0 && 1003 read_exec_only == 1 && 1004 seg_32bit == 0 && 1005 limit_in_pages == 0 && 1006 seg_not_present == 1 && 1007 useable == 0 )) { 1008 entry_1 = 0; 1009 entry_2 = 0; 1010 goto install; 1011 } 1012 } 1013 1014 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1015 (ldt_info.limit & 0x0ffff); 1016 entry_2 = (ldt_info.base_addr & 0xff000000) | 1017 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1018 (ldt_info.limit & 0xf0000) | 1019 ((read_exec_only ^ 1) << 9) | 1020 (contents << 10) | 1021 ((seg_not_present ^ 1) << 15) | 1022 (seg_32bit << 22) | 1023 (limit_in_pages << 23) | 1024 0x7000; 1025 if (!oldmode) 1026 entry_2 |= (useable << 20); 1027 1028 /* Install the new entry ... */ 1029 install: 1030 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1031 lp[0] = tswap32(entry_1); 1032 lp[1] = tswap32(entry_2); 1033 return 0; 1034 } 1035 1036 /* specific and weird i386 syscalls */ 1037 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount) 1038 { 1039 int ret = -ENOSYS; 1040 1041 switch (func) { 1042 case 0: 1043 ret = read_ldt(ptr, bytecount); 1044 break; 1045 case 1: 1046 ret = write_ldt(env, ptr, bytecount, 1); 1047 break; 1048 case 0x11: 1049 ret = write_ldt(env, ptr, bytecount, 0); 1050 break; 1051 } 1052 return ret; 1053 } 1054 1055 /* this stack is the equivalent of the kernel stack associated with a 1056 thread/process */ 1057 #define NEW_STACK_SIZE 8192 1058 1059 static int clone_func(void *arg) 1060 { 1061 CPUX86State *env = arg; 1062 cpu_loop(env); 1063 /* never exits */ 1064 return 0; 1065 } 1066 1067 int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp) 1068 { 1069 int ret; 1070 TaskState *ts; 1071 uint8_t *new_stack; 1072 CPUX86State *new_env; 1073 1074 if (flags & CLONE_VM) { 1075 if (!newsp) 1076 newsp = env->regs[R_ESP]; 1077 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 1078 memset(ts, 0, sizeof(TaskState)); 1079 new_stack = ts->stack; 1080 ts->used = 1; 1081 /* add in task state list */ 1082 ts->next = first_task_state; 1083 first_task_state = ts; 1084 /* we create a new CPU instance. */ 1085 new_env = cpu_x86_init(); 1086 memcpy(new_env, env, sizeof(CPUX86State)); 1087 new_env->regs[R_ESP] = newsp; 1088 new_env->regs[R_EAX] = 0; 1089 new_env->opaque = ts; 1090 #ifdef __ia64__ 1091 ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1092 #else 1093 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1094 #endif 1095 } else { 1096 /* if no CLONE_VM, we consider it is a fork */ 1097 if ((flags & ~CSIGNAL) != 0) 1098 return -EINVAL; 1099 ret = fork(); 1100 } 1101 return ret; 1102 } 1103 1104 #endif 1105 1106 #define high2lowuid(x) (x) 1107 #define high2lowgid(x) (x) 1108 #define low2highuid(x) (x) 1109 #define low2highgid(x) (x) 1110 1111 void syscall_init(void) 1112 { 1113 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1114 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1115 #include "syscall_types.h" 1116 #undef STRUCT 1117 #undef STRUCT_SPECIAL 1118 } 1119 1120 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 1121 long arg4, long arg5, long arg6) 1122 { 1123 long ret; 1124 struct stat st; 1125 struct kernel_statfs *stfs; 1126 1127 #ifdef DEBUG 1128 gemu_log("syscall %d\n", num); 1129 #endif 1130 switch(num) { 1131 case TARGET_NR_exit: 1132 #ifdef HAVE_GPROF 1133 _mcleanup(); 1134 #endif 1135 /* XXX: should free thread stack and CPU env */ 1136 _exit(arg1); 1137 ret = 0; /* avoid warning */ 1138 break; 1139 case TARGET_NR_read: 1140 page_unprotect_range((void *)arg2, arg3); 1141 ret = get_errno(read(arg1, (void *)arg2, arg3)); 1142 break; 1143 case TARGET_NR_write: 1144 ret = get_errno(write(arg1, (void *)arg2, arg3)); 1145 break; 1146 case TARGET_NR_open: 1147 ret = get_errno(open(path((const char *)arg1), arg2, arg3)); 1148 break; 1149 case TARGET_NR_close: 1150 ret = get_errno(close(arg1)); 1151 break; 1152 case TARGET_NR_brk: 1153 ret = do_brk((char *)arg1); 1154 break; 1155 case TARGET_NR_fork: 1156 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 1157 break; 1158 case TARGET_NR_waitpid: 1159 { 1160 int *status = (int *)arg2; 1161 ret = get_errno(waitpid(arg1, status, arg3)); 1162 if (!is_error(ret) && status) 1163 tswapls((long *)&status); 1164 } 1165 break; 1166 case TARGET_NR_creat: 1167 ret = get_errno(creat((const char *)arg1, arg2)); 1168 break; 1169 case TARGET_NR_link: 1170 ret = get_errno(link((const char *)arg1, (const char *)arg2)); 1171 break; 1172 case TARGET_NR_unlink: 1173 ret = get_errno(unlink((const char *)arg1)); 1174 break; 1175 case TARGET_NR_execve: 1176 { 1177 char **argp, **envp; 1178 int argc, envc; 1179 uint32_t *p; 1180 char **q; 1181 1182 argc = 0; 1183 for (p = (void *)arg2; *p; p++) 1184 argc++; 1185 envc = 0; 1186 for (p = (void *)arg3; *p; p++) 1187 envc++; 1188 1189 argp = alloca((argc + 1) * sizeof(void *)); 1190 envp = alloca((envc + 1) * sizeof(void *)); 1191 1192 for (p = (void *)arg2, q = argp; *p; p++, q++) 1193 *q = (void *)tswap32(*p); 1194 *q = NULL; 1195 1196 for (p = (void *)arg3, q = envp; *p; p++, q++) 1197 *q = (void *)tswap32(*p); 1198 *q = NULL; 1199 1200 ret = get_errno(execve((const char *)arg1, argp, envp)); 1201 } 1202 break; 1203 case TARGET_NR_chdir: 1204 ret = get_errno(chdir((const char *)arg1)); 1205 break; 1206 case TARGET_NR_time: 1207 { 1208 int *time_ptr = (int *)arg1; 1209 ret = get_errno(time((time_t *)time_ptr)); 1210 if (!is_error(ret) && time_ptr) 1211 tswap32s(time_ptr); 1212 } 1213 break; 1214 case TARGET_NR_mknod: 1215 ret = get_errno(mknod((const char *)arg1, arg2, arg3)); 1216 break; 1217 case TARGET_NR_chmod: 1218 ret = get_errno(chmod((const char *)arg1, arg2)); 1219 break; 1220 case TARGET_NR_lchown: 1221 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 1222 break; 1223 case TARGET_NR_break: 1224 goto unimplemented; 1225 case TARGET_NR_oldstat: 1226 goto unimplemented; 1227 case TARGET_NR_lseek: 1228 ret = get_errno(lseek(arg1, arg2, arg3)); 1229 break; 1230 case TARGET_NR_getpid: 1231 ret = get_errno(getpid()); 1232 break; 1233 case TARGET_NR_mount: 1234 /* need to look at the data field */ 1235 goto unimplemented; 1236 case TARGET_NR_umount: 1237 ret = get_errno(umount((const char *)arg1)); 1238 break; 1239 case TARGET_NR_setuid: 1240 ret = get_errno(setuid(low2highuid(arg1))); 1241 break; 1242 case TARGET_NR_getuid: 1243 ret = get_errno(getuid()); 1244 break; 1245 case TARGET_NR_stime: 1246 { 1247 int *time_ptr = (int *)arg1; 1248 if (time_ptr) 1249 tswap32s(time_ptr); 1250 ret = get_errno(stime((time_t *)time_ptr)); 1251 } 1252 break; 1253 case TARGET_NR_ptrace: 1254 goto unimplemented; 1255 case TARGET_NR_alarm: 1256 ret = alarm(arg1); 1257 break; 1258 case TARGET_NR_oldfstat: 1259 goto unimplemented; 1260 case TARGET_NR_pause: 1261 ret = get_errno(pause()); 1262 break; 1263 case TARGET_NR_utime: 1264 goto unimplemented; 1265 case TARGET_NR_stty: 1266 goto unimplemented; 1267 case TARGET_NR_gtty: 1268 goto unimplemented; 1269 case TARGET_NR_access: 1270 ret = get_errno(access((const char *)arg1, arg2)); 1271 break; 1272 case TARGET_NR_nice: 1273 ret = get_errno(nice(arg1)); 1274 break; 1275 case TARGET_NR_ftime: 1276 goto unimplemented; 1277 case TARGET_NR_sync: 1278 sync(); 1279 ret = 0; 1280 break; 1281 case TARGET_NR_kill: 1282 ret = get_errno(kill(arg1, arg2)); 1283 break; 1284 case TARGET_NR_rename: 1285 ret = get_errno(rename((const char *)arg1, (const char *)arg2)); 1286 break; 1287 case TARGET_NR_mkdir: 1288 ret = get_errno(mkdir((const char *)arg1, arg2)); 1289 break; 1290 case TARGET_NR_rmdir: 1291 ret = get_errno(rmdir((const char *)arg1)); 1292 break; 1293 case TARGET_NR_dup: 1294 ret = get_errno(dup(arg1)); 1295 break; 1296 case TARGET_NR_pipe: 1297 { 1298 int *pipe_ptr = (int *)arg1; 1299 ret = get_errno(pipe(pipe_ptr)); 1300 if (!is_error(ret)) { 1301 tswap32s(&pipe_ptr[0]); 1302 tswap32s(&pipe_ptr[1]); 1303 } 1304 } 1305 break; 1306 case TARGET_NR_times: 1307 { 1308 struct target_tms *tmsp = (void *)arg1; 1309 struct tms tms; 1310 ret = get_errno(times(&tms)); 1311 if (tmsp) { 1312 tmsp->tms_utime = tswapl(tms.tms_utime); 1313 tmsp->tms_stime = tswapl(tms.tms_stime); 1314 tmsp->tms_cutime = tswapl(tms.tms_cutime); 1315 tmsp->tms_cstime = tswapl(tms.tms_cstime); 1316 } 1317 } 1318 break; 1319 case TARGET_NR_prof: 1320 goto unimplemented; 1321 case TARGET_NR_setgid: 1322 ret = get_errno(setgid(low2highgid(arg1))); 1323 break; 1324 case TARGET_NR_getgid: 1325 ret = get_errno(getgid()); 1326 break; 1327 case TARGET_NR_signal: 1328 goto unimplemented; 1329 case TARGET_NR_geteuid: 1330 ret = get_errno(geteuid()); 1331 break; 1332 case TARGET_NR_getegid: 1333 ret = get_errno(getegid()); 1334 break; 1335 case TARGET_NR_acct: 1336 goto unimplemented; 1337 case TARGET_NR_umount2: 1338 ret = get_errno(umount2((const char *)arg1, arg2)); 1339 break; 1340 case TARGET_NR_lock: 1341 goto unimplemented; 1342 case TARGET_NR_ioctl: 1343 ret = do_ioctl(arg1, arg2, arg3); 1344 break; 1345 case TARGET_NR_fcntl: 1346 { 1347 struct flock fl; 1348 struct target_flock *target_fl = (void *)arg3; 1349 1350 switch(arg2) { 1351 case TARGET_F_GETLK: 1352 ret = get_errno(fcntl(arg1, arg2, &fl)); 1353 if (ret == 0) { 1354 target_fl->l_type = tswap16(fl.l_type); 1355 target_fl->l_whence = tswap16(fl.l_whence); 1356 target_fl->l_start = tswapl(fl.l_start); 1357 target_fl->l_len = tswapl(fl.l_len); 1358 target_fl->l_pid = tswapl(fl.l_pid); 1359 } 1360 break; 1361 1362 case TARGET_F_SETLK: 1363 case TARGET_F_SETLKW: 1364 fl.l_type = tswap16(target_fl->l_type); 1365 fl.l_whence = tswap16(target_fl->l_whence); 1366 fl.l_start = tswapl(target_fl->l_start); 1367 fl.l_len = tswapl(target_fl->l_len); 1368 fl.l_pid = tswapl(target_fl->l_pid); 1369 ret = get_errno(fcntl(arg1, arg2, &fl)); 1370 break; 1371 1372 case TARGET_F_GETLK64: 1373 case TARGET_F_SETLK64: 1374 case TARGET_F_SETLKW64: 1375 goto unimplemented; 1376 default: 1377 ret = get_errno(fcntl(arg1, arg2, arg3)); 1378 break; 1379 } 1380 break; 1381 } 1382 case TARGET_NR_mpx: 1383 goto unimplemented; 1384 case TARGET_NR_setpgid: 1385 ret = get_errno(setpgid(arg1, arg2)); 1386 break; 1387 case TARGET_NR_ulimit: 1388 goto unimplemented; 1389 case TARGET_NR_oldolduname: 1390 goto unimplemented; 1391 case TARGET_NR_umask: 1392 ret = get_errno(umask(arg1)); 1393 break; 1394 case TARGET_NR_chroot: 1395 ret = get_errno(chroot((const char *)arg1)); 1396 break; 1397 case TARGET_NR_ustat: 1398 goto unimplemented; 1399 case TARGET_NR_dup2: 1400 ret = get_errno(dup2(arg1, arg2)); 1401 break; 1402 case TARGET_NR_getppid: 1403 ret = get_errno(getppid()); 1404 break; 1405 case TARGET_NR_getpgrp: 1406 ret = get_errno(getpgrp()); 1407 break; 1408 case TARGET_NR_setsid: 1409 ret = get_errno(setsid()); 1410 break; 1411 case TARGET_NR_sigaction: 1412 { 1413 struct target_old_sigaction *old_act = (void *)arg2; 1414 struct target_old_sigaction *old_oact = (void *)arg3; 1415 struct target_sigaction act, oact, *pact; 1416 if (old_act) { 1417 act._sa_handler = old_act->_sa_handler; 1418 target_siginitset(&act.sa_mask, old_act->sa_mask); 1419 act.sa_flags = old_act->sa_flags; 1420 act.sa_restorer = old_act->sa_restorer; 1421 pact = &act; 1422 } else { 1423 pact = NULL; 1424 } 1425 ret = get_errno(do_sigaction(arg1, pact, &oact)); 1426 if (!is_error(ret) && old_oact) { 1427 old_oact->_sa_handler = oact._sa_handler; 1428 old_oact->sa_mask = oact.sa_mask.sig[0]; 1429 old_oact->sa_flags = oact.sa_flags; 1430 old_oact->sa_restorer = oact.sa_restorer; 1431 } 1432 } 1433 break; 1434 case TARGET_NR_rt_sigaction: 1435 ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3)); 1436 break; 1437 case TARGET_NR_sgetmask: 1438 { 1439 sigset_t cur_set; 1440 target_ulong target_set; 1441 sigprocmask(0, NULL, &cur_set); 1442 host_to_target_old_sigset(&target_set, &cur_set); 1443 ret = target_set; 1444 } 1445 break; 1446 case TARGET_NR_ssetmask: 1447 { 1448 sigset_t set, oset, cur_set; 1449 target_ulong target_set = arg1; 1450 sigprocmask(0, NULL, &cur_set); 1451 target_to_host_old_sigset(&set, &target_set); 1452 sigorset(&set, &set, &cur_set); 1453 sigprocmask(SIG_SETMASK, &set, &oset); 1454 host_to_target_old_sigset(&target_set, &oset); 1455 ret = target_set; 1456 } 1457 break; 1458 case TARGET_NR_sigprocmask: 1459 { 1460 int how = arg1; 1461 sigset_t set, oldset, *set_ptr; 1462 target_ulong *pset = (void *)arg2, *poldset = (void *)arg3; 1463 1464 if (pset) { 1465 switch(how) { 1466 case TARGET_SIG_BLOCK: 1467 how = SIG_BLOCK; 1468 break; 1469 case TARGET_SIG_UNBLOCK: 1470 how = SIG_UNBLOCK; 1471 break; 1472 case TARGET_SIG_SETMASK: 1473 how = SIG_SETMASK; 1474 break; 1475 default: 1476 ret = -EINVAL; 1477 goto fail; 1478 } 1479 target_to_host_old_sigset(&set, pset); 1480 set_ptr = &set; 1481 } else { 1482 how = 0; 1483 set_ptr = NULL; 1484 } 1485 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 1486 if (!is_error(ret) && poldset) { 1487 host_to_target_old_sigset(poldset, &oldset); 1488 } 1489 } 1490 break; 1491 case TARGET_NR_rt_sigprocmask: 1492 { 1493 int how = arg1; 1494 sigset_t set, oldset, *set_ptr; 1495 target_sigset_t *pset = (void *)arg2; 1496 target_sigset_t *poldset = (void *)arg3; 1497 1498 if (pset) { 1499 switch(how) { 1500 case TARGET_SIG_BLOCK: 1501 how = SIG_BLOCK; 1502 break; 1503 case TARGET_SIG_UNBLOCK: 1504 how = SIG_UNBLOCK; 1505 break; 1506 case TARGET_SIG_SETMASK: 1507 how = SIG_SETMASK; 1508 break; 1509 default: 1510 ret = -EINVAL; 1511 goto fail; 1512 } 1513 target_to_host_sigset(&set, pset); 1514 set_ptr = &set; 1515 } else { 1516 how = 0; 1517 set_ptr = NULL; 1518 } 1519 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 1520 if (!is_error(ret) && poldset) { 1521 host_to_target_sigset(poldset, &oldset); 1522 } 1523 } 1524 break; 1525 case TARGET_NR_sigpending: 1526 { 1527 sigset_t set; 1528 ret = get_errno(sigpending(&set)); 1529 if (!is_error(ret)) { 1530 host_to_target_old_sigset((target_ulong *)arg1, &set); 1531 } 1532 } 1533 break; 1534 case TARGET_NR_rt_sigpending: 1535 { 1536 sigset_t set; 1537 ret = get_errno(sigpending(&set)); 1538 if (!is_error(ret)) { 1539 host_to_target_sigset((target_sigset_t *)arg1, &set); 1540 } 1541 } 1542 break; 1543 case TARGET_NR_sigsuspend: 1544 { 1545 sigset_t set; 1546 target_to_host_old_sigset(&set, (target_ulong *)arg1); 1547 ret = get_errno(sigsuspend(&set)); 1548 } 1549 break; 1550 case TARGET_NR_rt_sigsuspend: 1551 { 1552 sigset_t set; 1553 target_to_host_sigset(&set, (target_sigset_t *)arg1); 1554 ret = get_errno(sigsuspend(&set)); 1555 } 1556 break; 1557 case TARGET_NR_rt_sigtimedwait: 1558 { 1559 target_sigset_t *target_set = (void *)arg1; 1560 target_siginfo_t *target_uinfo = (void *)arg2; 1561 struct target_timespec *target_uts = (void *)arg3; 1562 sigset_t set; 1563 struct timespec uts, *puts; 1564 siginfo_t uinfo; 1565 1566 target_to_host_sigset(&set, target_set); 1567 if (target_uts) { 1568 puts = &uts; 1569 puts->tv_sec = tswapl(target_uts->tv_sec); 1570 puts->tv_nsec = tswapl(target_uts->tv_nsec); 1571 } else { 1572 puts = NULL; 1573 } 1574 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 1575 if (!is_error(ret) && target_uinfo) { 1576 host_to_target_siginfo(target_uinfo, &uinfo); 1577 } 1578 } 1579 break; 1580 case TARGET_NR_rt_sigqueueinfo: 1581 { 1582 siginfo_t uinfo; 1583 target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3); 1584 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 1585 } 1586 break; 1587 case TARGET_NR_sigreturn: 1588 /* NOTE: ret is eax, so not transcoding must be done */ 1589 ret = do_sigreturn(cpu_env); 1590 break; 1591 case TARGET_NR_rt_sigreturn: 1592 /* NOTE: ret is eax, so not transcoding must be done */ 1593 ret = do_rt_sigreturn(cpu_env); 1594 break; 1595 case TARGET_NR_setreuid: 1596 ret = get_errno(setreuid(arg1, arg2)); 1597 break; 1598 case TARGET_NR_setregid: 1599 ret = get_errno(setregid(arg1, arg2)); 1600 break; 1601 case TARGET_NR_sethostname: 1602 ret = get_errno(sethostname((const char *)arg1, arg2)); 1603 break; 1604 case TARGET_NR_setrlimit: 1605 { 1606 /* XXX: convert resource ? */ 1607 int resource = arg1; 1608 struct target_rlimit *target_rlim = (void *)arg2; 1609 struct rlimit rlim; 1610 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 1611 rlim.rlim_max = tswapl(target_rlim->rlim_max); 1612 ret = get_errno(setrlimit(resource, &rlim)); 1613 } 1614 break; 1615 case TARGET_NR_getrlimit: 1616 { 1617 /* XXX: convert resource ? */ 1618 int resource = arg1; 1619 struct target_rlimit *target_rlim = (void *)arg2; 1620 struct rlimit rlim; 1621 1622 ret = get_errno(getrlimit(resource, &rlim)); 1623 if (!is_error(ret)) { 1624 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 1625 target_rlim->rlim_max = tswapl(rlim.rlim_max); 1626 } 1627 } 1628 break; 1629 case TARGET_NR_getrusage: 1630 goto unimplemented; 1631 case TARGET_NR_gettimeofday: 1632 { 1633 struct target_timeval *target_tv = (void *)arg1; 1634 struct timeval tv; 1635 ret = get_errno(gettimeofday(&tv, NULL)); 1636 if (!is_error(ret)) { 1637 host_to_target_timeval(target_tv, &tv); 1638 } 1639 } 1640 break; 1641 case TARGET_NR_settimeofday: 1642 { 1643 struct target_timeval *target_tv = (void *)arg1; 1644 struct timeval tv; 1645 target_to_host_timeval(&tv, target_tv); 1646 ret = get_errno(settimeofday(&tv, NULL)); 1647 } 1648 break; 1649 case TARGET_NR_getgroups: 1650 { 1651 int gidsetsize = arg1; 1652 uint16_t *target_grouplist = (void *)arg2; 1653 gid_t *grouplist; 1654 int i; 1655 1656 grouplist = alloca(gidsetsize * sizeof(gid_t)); 1657 ret = get_errno(getgroups(gidsetsize, grouplist)); 1658 if (!is_error(ret)) { 1659 for(i = 0;i < gidsetsize; i++) 1660 target_grouplist[i] = tswap16(grouplist[i]); 1661 } 1662 } 1663 break; 1664 case TARGET_NR_setgroups: 1665 { 1666 int gidsetsize = arg1; 1667 uint16_t *target_grouplist = (void *)arg2; 1668 gid_t *grouplist; 1669 int i; 1670 1671 grouplist = alloca(gidsetsize * sizeof(gid_t)); 1672 for(i = 0;i < gidsetsize; i++) 1673 grouplist[i] = tswap16(target_grouplist[i]); 1674 ret = get_errno(setgroups(gidsetsize, grouplist)); 1675 } 1676 break; 1677 case TARGET_NR_select: 1678 goto unimplemented; 1679 case TARGET_NR_symlink: 1680 ret = get_errno(symlink((const char *)arg1, (const char *)arg2)); 1681 break; 1682 case TARGET_NR_oldlstat: 1683 goto unimplemented; 1684 case TARGET_NR_readlink: 1685 ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3)); 1686 break; 1687 case TARGET_NR_uselib: 1688 goto unimplemented; 1689 case TARGET_NR_swapon: 1690 ret = get_errno(swapon((const char *)arg1, arg2)); 1691 break; 1692 case TARGET_NR_reboot: 1693 goto unimplemented; 1694 case TARGET_NR_readdir: 1695 goto unimplemented; 1696 #ifdef TARGET_I386 1697 case TARGET_NR_mmap: 1698 { 1699 uint32_t v1, v2, v3, v4, v5, v6, *vptr; 1700 vptr = (uint32_t *)arg1; 1701 v1 = tswap32(vptr[0]); 1702 v2 = tswap32(vptr[1]); 1703 v3 = tswap32(vptr[2]); 1704 v4 = tswap32(vptr[3]); 1705 v5 = tswap32(vptr[4]); 1706 v6 = tswap32(vptr[5]); 1707 ret = get_errno(target_mmap(v1, v2, v3, v4, v5, v6)); 1708 } 1709 break; 1710 #endif 1711 #ifdef TARGET_I386 1712 case TARGET_NR_mmap2: 1713 #else 1714 case TARGET_NR_mmap: 1715 #endif 1716 ret = get_errno(target_mmap(arg1, arg2, arg3, arg4, arg5, arg6)); 1717 break; 1718 case TARGET_NR_munmap: 1719 ret = get_errno(target_munmap(arg1, arg2)); 1720 break; 1721 case TARGET_NR_mprotect: 1722 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 1723 break; 1724 case TARGET_NR_mremap: 1725 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 1726 break; 1727 case TARGET_NR_msync: 1728 ret = get_errno(msync((void *)arg1, arg2, arg3)); 1729 break; 1730 case TARGET_NR_mlock: 1731 ret = get_errno(mlock((void *)arg1, arg2)); 1732 break; 1733 case TARGET_NR_munlock: 1734 ret = get_errno(munlock((void *)arg1, arg2)); 1735 break; 1736 case TARGET_NR_mlockall: 1737 ret = get_errno(mlockall(arg1)); 1738 break; 1739 case TARGET_NR_munlockall: 1740 ret = get_errno(munlockall()); 1741 break; 1742 case TARGET_NR_truncate: 1743 ret = get_errno(truncate((const char *)arg1, arg2)); 1744 break; 1745 case TARGET_NR_ftruncate: 1746 ret = get_errno(ftruncate(arg1, arg2)); 1747 break; 1748 case TARGET_NR_fchmod: 1749 ret = get_errno(fchmod(arg1, arg2)); 1750 break; 1751 case TARGET_NR_fchown: 1752 ret = get_errno(fchown(arg1, arg2, arg3)); 1753 break; 1754 case TARGET_NR_getpriority: 1755 ret = get_errno(getpriority(arg1, arg2)); 1756 break; 1757 case TARGET_NR_setpriority: 1758 ret = get_errno(setpriority(arg1, arg2, arg3)); 1759 break; 1760 case TARGET_NR_profil: 1761 goto unimplemented; 1762 case TARGET_NR_statfs: 1763 stfs = (void *)arg2; 1764 ret = get_errno(sys_statfs(path((const char *)arg1), stfs)); 1765 convert_statfs: 1766 if (!is_error(ret)) { 1767 tswap32s(&stfs->f_type); 1768 tswap32s(&stfs->f_bsize); 1769 tswap32s(&stfs->f_blocks); 1770 tswap32s(&stfs->f_bfree); 1771 tswap32s(&stfs->f_bavail); 1772 tswap32s(&stfs->f_files); 1773 tswap32s(&stfs->f_ffree); 1774 tswap32s(&stfs->f_fsid.val[0]); 1775 tswap32s(&stfs->f_fsid.val[1]); 1776 tswap32s(&stfs->f_namelen); 1777 } 1778 break; 1779 case TARGET_NR_fstatfs: 1780 stfs = (void *)arg2; 1781 ret = get_errno(sys_fstatfs(arg1, stfs)); 1782 goto convert_statfs; 1783 case TARGET_NR_ioperm: 1784 goto unimplemented; 1785 case TARGET_NR_socketcall: 1786 ret = do_socketcall(arg1, (int32_t *)arg2); 1787 break; 1788 case TARGET_NR_syslog: 1789 goto unimplemented; 1790 case TARGET_NR_setitimer: 1791 { 1792 struct target_itimerval *target_value = (void *)arg2; 1793 struct target_itimerval *target_ovalue = (void *)arg3; 1794 struct itimerval value, ovalue, *pvalue; 1795 1796 if (target_value) { 1797 pvalue = &value; 1798 target_to_host_timeval(&pvalue->it_interval, 1799 &target_value->it_interval); 1800 target_to_host_timeval(&pvalue->it_value, 1801 &target_value->it_value); 1802 } else { 1803 pvalue = NULL; 1804 } 1805 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 1806 if (!is_error(ret) && target_ovalue) { 1807 host_to_target_timeval(&target_ovalue->it_interval, 1808 &ovalue.it_interval); 1809 host_to_target_timeval(&target_ovalue->it_value, 1810 &ovalue.it_value); 1811 } 1812 } 1813 break; 1814 case TARGET_NR_getitimer: 1815 { 1816 struct target_itimerval *target_value = (void *)arg2; 1817 struct itimerval value; 1818 1819 ret = get_errno(getitimer(arg1, &value)); 1820 if (!is_error(ret) && target_value) { 1821 host_to_target_timeval(&target_value->it_interval, 1822 &value.it_interval); 1823 host_to_target_timeval(&target_value->it_value, 1824 &value.it_value); 1825 } 1826 } 1827 break; 1828 case TARGET_NR_stat: 1829 ret = get_errno(stat(path((const char *)arg1), &st)); 1830 goto do_stat; 1831 case TARGET_NR_lstat: 1832 ret = get_errno(lstat(path((const char *)arg1), &st)); 1833 goto do_stat; 1834 case TARGET_NR_fstat: 1835 { 1836 ret = get_errno(fstat(arg1, &st)); 1837 do_stat: 1838 if (!is_error(ret)) { 1839 struct target_stat *target_st = (void *)arg2; 1840 target_st->st_dev = tswap16(st.st_dev); 1841 target_st->st_ino = tswapl(st.st_ino); 1842 target_st->st_mode = tswap16(st.st_mode); 1843 target_st->st_nlink = tswap16(st.st_nlink); 1844 target_st->st_uid = tswap16(st.st_uid); 1845 target_st->st_gid = tswap16(st.st_gid); 1846 target_st->st_rdev = tswap16(st.st_rdev); 1847 target_st->st_size = tswapl(st.st_size); 1848 target_st->st_blksize = tswapl(st.st_blksize); 1849 target_st->st_blocks = tswapl(st.st_blocks); 1850 target_st->target_st_atime = tswapl(st.st_atime); 1851 target_st->target_st_mtime = tswapl(st.st_mtime); 1852 target_st->target_st_ctime = tswapl(st.st_ctime); 1853 } 1854 } 1855 break; 1856 case TARGET_NR_olduname: 1857 goto unimplemented; 1858 case TARGET_NR_iopl: 1859 goto unimplemented; 1860 case TARGET_NR_vhangup: 1861 ret = get_errno(vhangup()); 1862 break; 1863 case TARGET_NR_idle: 1864 goto unimplemented; 1865 case TARGET_NR_wait4: 1866 { 1867 int status; 1868 target_long *status_ptr = (void *)arg2; 1869 struct rusage rusage, *rusage_ptr; 1870 struct target_rusage *target_rusage = (void *)arg4; 1871 if (target_rusage) 1872 rusage_ptr = &rusage; 1873 else 1874 rusage_ptr = NULL; 1875 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 1876 if (!is_error(ret)) { 1877 if (status_ptr) 1878 *status_ptr = tswap32(status); 1879 if (target_rusage) { 1880 target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec); 1881 target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec); 1882 target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec); 1883 target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec); 1884 target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss); 1885 target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss); 1886 target_rusage->ru_idrss = tswapl(rusage.ru_idrss); 1887 target_rusage->ru_isrss = tswapl(rusage.ru_isrss); 1888 target_rusage->ru_minflt = tswapl(rusage.ru_minflt); 1889 target_rusage->ru_majflt = tswapl(rusage.ru_majflt); 1890 target_rusage->ru_nswap = tswapl(rusage.ru_nswap); 1891 target_rusage->ru_inblock = tswapl(rusage.ru_inblock); 1892 target_rusage->ru_oublock = tswapl(rusage.ru_oublock); 1893 target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd); 1894 target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv); 1895 target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals); 1896 target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw); 1897 target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw); 1898 } 1899 } 1900 } 1901 break; 1902 case TARGET_NR_swapoff: 1903 ret = get_errno(swapoff((const char *)arg1)); 1904 break; 1905 case TARGET_NR_sysinfo: 1906 goto unimplemented; 1907 case TARGET_NR_ipc: 1908 goto unimplemented; 1909 case TARGET_NR_fsync: 1910 ret = get_errno(fsync(arg1)); 1911 break; 1912 case TARGET_NR_clone: 1913 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 1914 break; 1915 #ifdef __NR_exit_group 1916 /* new thread calls */ 1917 case TARGET_NR_exit_group: 1918 ret = get_errno(exit_group(arg1)); 1919 break; 1920 #endif 1921 case TARGET_NR_setdomainname: 1922 ret = get_errno(setdomainname((const char *)arg1, arg2)); 1923 break; 1924 case TARGET_NR_uname: 1925 /* no need to transcode because we use the linux syscall */ 1926 ret = get_errno(sys_uname((struct new_utsname *)arg1)); 1927 break; 1928 #ifdef TARGET_I386 1929 case TARGET_NR_modify_ldt: 1930 ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3)); 1931 break; 1932 case TARGET_NR_vm86old: 1933 goto unimplemented; 1934 case TARGET_NR_vm86: 1935 ret = do_vm86(cpu_env, arg1, (void *)arg2); 1936 break; 1937 #endif 1938 case TARGET_NR_adjtimex: 1939 goto unimplemented; 1940 case TARGET_NR_create_module: 1941 case TARGET_NR_init_module: 1942 case TARGET_NR_delete_module: 1943 case TARGET_NR_get_kernel_syms: 1944 goto unimplemented; 1945 case TARGET_NR_quotactl: 1946 goto unimplemented; 1947 case TARGET_NR_getpgid: 1948 ret = get_errno(getpgid(arg1)); 1949 break; 1950 case TARGET_NR_fchdir: 1951 ret = get_errno(fchdir(arg1)); 1952 break; 1953 case TARGET_NR_bdflush: 1954 goto unimplemented; 1955 case TARGET_NR_sysfs: 1956 goto unimplemented; 1957 case TARGET_NR_personality: 1958 ret = get_errno(personality(arg1)); 1959 break; 1960 case TARGET_NR_afs_syscall: 1961 goto unimplemented; 1962 case TARGET_NR_setfsuid: 1963 ret = get_errno(setfsuid(arg1)); 1964 break; 1965 case TARGET_NR_setfsgid: 1966 ret = get_errno(setfsgid(arg1)); 1967 break; 1968 case TARGET_NR__llseek: 1969 { 1970 int64_t res; 1971 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 1972 *(int64_t *)arg4 = tswap64(res); 1973 } 1974 break; 1975 case TARGET_NR_getdents: 1976 #if TARGET_LONG_SIZE != 4 1977 #error not supported 1978 #endif 1979 { 1980 struct dirent *dirp = (void *)arg2; 1981 long count = arg3; 1982 1983 ret = get_errno(sys_getdents(arg1, dirp, count)); 1984 if (!is_error(ret)) { 1985 struct dirent *de; 1986 int len = ret; 1987 int reclen; 1988 de = dirp; 1989 while (len > 0) { 1990 reclen = de->d_reclen; 1991 if (reclen > len) 1992 break; 1993 de->d_reclen = tswap16(reclen); 1994 tswapls(&de->d_ino); 1995 tswapls(&de->d_off); 1996 de = (struct dirent *)((char *)de + reclen); 1997 len -= reclen; 1998 } 1999 } 2000 } 2001 break; 2002 case TARGET_NR_getdents64: 2003 { 2004 struct dirent64 *dirp = (void *)arg2; 2005 long count = arg3; 2006 ret = get_errno(sys_getdents64(arg1, dirp, count)); 2007 if (!is_error(ret)) { 2008 struct dirent64 *de; 2009 int len = ret; 2010 int reclen; 2011 de = dirp; 2012 while (len > 0) { 2013 reclen = de->d_reclen; 2014 if (reclen > len) 2015 break; 2016 de->d_reclen = tswap16(reclen); 2017 tswap64s(&de->d_ino); 2018 tswap64s(&de->d_off); 2019 de = (struct dirent64 *)((char *)de + reclen); 2020 len -= reclen; 2021 } 2022 } 2023 } 2024 break; 2025 case TARGET_NR__newselect: 2026 ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 2027 (void *)arg5); 2028 break; 2029 case TARGET_NR_poll: 2030 { 2031 struct target_pollfd *target_pfd = (void *)arg1; 2032 unsigned int nfds = arg2; 2033 int timeout = arg3; 2034 struct pollfd *pfd; 2035 unsigned int i; 2036 2037 pfd = alloca(sizeof(struct pollfd) * nfds); 2038 for(i = 0; i < nfds; i++) { 2039 pfd[i].fd = tswap32(target_pfd[i].fd); 2040 pfd[i].events = tswap16(target_pfd[i].events); 2041 } 2042 ret = get_errno(poll(pfd, nfds, timeout)); 2043 if (!is_error(ret)) { 2044 for(i = 0; i < nfds; i++) { 2045 target_pfd[i].revents = tswap16(pfd[i].revents); 2046 } 2047 } 2048 } 2049 break; 2050 case TARGET_NR_flock: 2051 /* NOTE: the flock constant seems to be the same for every 2052 Linux platform */ 2053 ret = get_errno(flock(arg1, arg2)); 2054 break; 2055 case TARGET_NR_readv: 2056 { 2057 int count = arg3; 2058 int i; 2059 struct iovec *vec; 2060 struct target_iovec *target_vec = (void *)arg2; 2061 2062 vec = alloca(count * sizeof(struct iovec)); 2063 for(i = 0;i < count; i++) { 2064 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 2065 vec[i].iov_len = tswapl(target_vec[i].iov_len); 2066 } 2067 ret = get_errno(readv(arg1, vec, count)); 2068 } 2069 break; 2070 case TARGET_NR_writev: 2071 { 2072 int count = arg3; 2073 int i; 2074 struct iovec *vec; 2075 struct target_iovec *target_vec = (void *)arg2; 2076 2077 vec = alloca(count * sizeof(struct iovec)); 2078 for(i = 0;i < count; i++) { 2079 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 2080 vec[i].iov_len = tswapl(target_vec[i].iov_len); 2081 } 2082 ret = get_errno(writev(arg1, vec, count)); 2083 } 2084 break; 2085 case TARGET_NR_getsid: 2086 ret = get_errno(getsid(arg1)); 2087 break; 2088 case TARGET_NR_fdatasync: 2089 ret = get_errno(fdatasync(arg1)); 2090 break; 2091 case TARGET_NR__sysctl: 2092 goto unimplemented; 2093 case TARGET_NR_sched_setparam: 2094 { 2095 struct sched_param *target_schp = (void *)arg2; 2096 struct sched_param schp; 2097 schp.sched_priority = tswap32(target_schp->sched_priority); 2098 ret = get_errno(sched_setparam(arg1, &schp)); 2099 } 2100 break; 2101 case TARGET_NR_sched_getparam: 2102 { 2103 struct sched_param *target_schp = (void *)arg2; 2104 struct sched_param schp; 2105 ret = get_errno(sched_getparam(arg1, &schp)); 2106 if (!is_error(ret)) { 2107 target_schp->sched_priority = tswap32(schp.sched_priority); 2108 } 2109 } 2110 break; 2111 case TARGET_NR_sched_setscheduler: 2112 { 2113 struct sched_param *target_schp = (void *)arg3; 2114 struct sched_param schp; 2115 schp.sched_priority = tswap32(target_schp->sched_priority); 2116 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 2117 } 2118 break; 2119 case TARGET_NR_sched_getscheduler: 2120 ret = get_errno(sched_getscheduler(arg1)); 2121 break; 2122 case TARGET_NR_sched_yield: 2123 ret = get_errno(sched_yield()); 2124 break; 2125 case TARGET_NR_sched_get_priority_max: 2126 ret = get_errno(sched_get_priority_max(arg1)); 2127 break; 2128 case TARGET_NR_sched_get_priority_min: 2129 ret = get_errno(sched_get_priority_min(arg1)); 2130 break; 2131 case TARGET_NR_sched_rr_get_interval: 2132 { 2133 struct target_timespec *target_ts = (void *)arg2; 2134 struct timespec ts; 2135 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 2136 if (!is_error(ret)) { 2137 target_ts->tv_sec = tswapl(ts.tv_sec); 2138 target_ts->tv_nsec = tswapl(ts.tv_nsec); 2139 } 2140 } 2141 break; 2142 case TARGET_NR_nanosleep: 2143 { 2144 struct target_timespec *target_req = (void *)arg1; 2145 struct target_timespec *target_rem = (void *)arg2; 2146 struct timespec req, rem; 2147 req.tv_sec = tswapl(target_req->tv_sec); 2148 req.tv_nsec = tswapl(target_req->tv_nsec); 2149 ret = get_errno(nanosleep(&req, &rem)); 2150 if (target_rem) { 2151 target_rem->tv_sec = tswapl(rem.tv_sec); 2152 target_rem->tv_nsec = tswapl(rem.tv_nsec); 2153 } 2154 } 2155 break; 2156 case TARGET_NR_setresuid: 2157 ret = get_errno(setresuid(low2highuid(arg1), 2158 low2highuid(arg2), 2159 low2highuid(arg3))); 2160 break; 2161 case TARGET_NR_getresuid: 2162 { 2163 int ruid, euid, suid; 2164 ret = get_errno(getresuid(&ruid, &euid, &suid)); 2165 if (!is_error(ret)) { 2166 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid)); 2167 *(uint16_t *)arg2 = tswap16(high2lowuid(euid)); 2168 *(uint16_t *)arg3 = tswap16(high2lowuid(suid)); 2169 } 2170 } 2171 break; 2172 case TARGET_NR_setresgid: 2173 ret = get_errno(setresgid(low2highgid(arg1), 2174 low2highgid(arg2), 2175 low2highgid(arg3))); 2176 break; 2177 case TARGET_NR_getresgid: 2178 { 2179 int rgid, egid, sgid; 2180 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 2181 if (!is_error(ret)) { 2182 *(uint16_t *)arg1 = high2lowgid(tswap16(rgid)); 2183 *(uint16_t *)arg2 = high2lowgid(tswap16(egid)); 2184 *(uint16_t *)arg3 = high2lowgid(tswap16(sgid)); 2185 } 2186 } 2187 break; 2188 case TARGET_NR_query_module: 2189 goto unimplemented; 2190 case TARGET_NR_nfsservctl: 2191 goto unimplemented; 2192 case TARGET_NR_prctl: 2193 goto unimplemented; 2194 case TARGET_NR_pread: 2195 page_unprotect_range((void *)arg2, arg3); 2196 ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4)); 2197 break; 2198 case TARGET_NR_pwrite: 2199 ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4)); 2200 break; 2201 case TARGET_NR_chown: 2202 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 2203 break; 2204 case TARGET_NR_getcwd: 2205 ret = get_errno(sys_getcwd1((char *)arg1, arg2)); 2206 break; 2207 case TARGET_NR_capget: 2208 goto unimplemented; 2209 case TARGET_NR_capset: 2210 goto unimplemented; 2211 case TARGET_NR_sigaltstack: 2212 goto unimplemented; 2213 case TARGET_NR_sendfile: 2214 goto unimplemented; 2215 case TARGET_NR_getpmsg: 2216 goto unimplemented; 2217 case TARGET_NR_putpmsg: 2218 goto unimplemented; 2219 case TARGET_NR_vfork: 2220 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 2221 break; 2222 case TARGET_NR_ugetrlimit: 2223 { 2224 struct rlimit rlim; 2225 ret = get_errno(getrlimit(arg1, &rlim)); 2226 if (!is_error(ret)) { 2227 struct target_rlimit *target_rlim = (void *)arg2; 2228 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 2229 target_rlim->rlim_max = tswapl(rlim.rlim_max); 2230 } 2231 break; 2232 } 2233 case TARGET_NR_truncate64: 2234 goto unimplemented; 2235 case TARGET_NR_ftruncate64: 2236 goto unimplemented; 2237 case TARGET_NR_stat64: 2238 ret = get_errno(stat(path((const char *)arg1), &st)); 2239 goto do_stat64; 2240 case TARGET_NR_lstat64: 2241 ret = get_errno(lstat(path((const char *)arg1), &st)); 2242 goto do_stat64; 2243 case TARGET_NR_fstat64: 2244 { 2245 ret = get_errno(fstat(arg1, &st)); 2246 do_stat64: 2247 if (!is_error(ret)) { 2248 struct target_stat64 *target_st = (void *)arg2; 2249 memset(target_st, 0, sizeof(struct target_stat64)); 2250 target_st->st_dev = tswap16(st.st_dev); 2251 target_st->st_ino = tswap64(st.st_ino); 2252 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 2253 target_st->__st_ino = tswapl(st.st_ino); 2254 #endif 2255 target_st->st_mode = tswap32(st.st_mode); 2256 target_st->st_nlink = tswap32(st.st_nlink); 2257 target_st->st_uid = tswapl(st.st_uid); 2258 target_st->st_gid = tswapl(st.st_gid); 2259 target_st->st_rdev = tswap16(st.st_rdev); 2260 /* XXX: better use of kernel struct */ 2261 target_st->st_size = tswap64(st.st_size); 2262 target_st->st_blksize = tswapl(st.st_blksize); 2263 target_st->st_blocks = tswapl(st.st_blocks); 2264 target_st->target_st_atime = tswapl(st.st_atime); 2265 target_st->target_st_mtime = tswapl(st.st_mtime); 2266 target_st->target_st_ctime = tswapl(st.st_ctime); 2267 } 2268 } 2269 break; 2270 2271 case TARGET_NR_lchown32: 2272 ret = get_errno(lchown((const char *)arg1, arg2, arg3)); 2273 break; 2274 case TARGET_NR_getuid32: 2275 ret = get_errno(getuid()); 2276 break; 2277 case TARGET_NR_getgid32: 2278 ret = get_errno(getgid()); 2279 break; 2280 case TARGET_NR_geteuid32: 2281 ret = get_errno(geteuid()); 2282 break; 2283 case TARGET_NR_getegid32: 2284 ret = get_errno(getegid()); 2285 break; 2286 case TARGET_NR_setreuid32: 2287 ret = get_errno(setreuid(arg1, arg2)); 2288 break; 2289 case TARGET_NR_setregid32: 2290 ret = get_errno(setregid(arg1, arg2)); 2291 break; 2292 case TARGET_NR_getgroups32: 2293 goto unimplemented; 2294 case TARGET_NR_setgroups32: 2295 goto unimplemented; 2296 case TARGET_NR_fchown32: 2297 ret = get_errno(fchown(arg1, arg2, arg3)); 2298 break; 2299 case TARGET_NR_setresuid32: 2300 ret = get_errno(setresuid(arg1, arg2, arg3)); 2301 break; 2302 case TARGET_NR_getresuid32: 2303 { 2304 int ruid, euid, suid; 2305 ret = get_errno(getresuid(&ruid, &euid, &suid)); 2306 if (!is_error(ret)) { 2307 *(uint32_t *)arg1 = tswap32(ruid); 2308 *(uint32_t *)arg2 = tswap32(euid); 2309 *(uint32_t *)arg3 = tswap32(suid); 2310 } 2311 } 2312 break; 2313 case TARGET_NR_setresgid32: 2314 ret = get_errno(setresgid(arg1, arg2, arg3)); 2315 break; 2316 case TARGET_NR_getresgid32: 2317 { 2318 int rgid, egid, sgid; 2319 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 2320 if (!is_error(ret)) { 2321 *(uint32_t *)arg1 = tswap32(rgid); 2322 *(uint32_t *)arg2 = tswap32(egid); 2323 *(uint32_t *)arg3 = tswap32(sgid); 2324 } 2325 } 2326 break; 2327 case TARGET_NR_chown32: 2328 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 2329 break; 2330 case TARGET_NR_setuid32: 2331 ret = get_errno(setuid(arg1)); 2332 break; 2333 case TARGET_NR_setgid32: 2334 ret = get_errno(setgid(arg1)); 2335 break; 2336 case TARGET_NR_setfsuid32: 2337 ret = get_errno(setfsuid(arg1)); 2338 break; 2339 case TARGET_NR_setfsgid32: 2340 ret = get_errno(setfsgid(arg1)); 2341 break; 2342 case TARGET_NR_pivot_root: 2343 goto unimplemented; 2344 case TARGET_NR_mincore: 2345 goto unimplemented; 2346 case TARGET_NR_madvise: 2347 goto unimplemented; 2348 #if TARGET_LONG_BITS == 32 2349 case TARGET_NR_fcntl64: 2350 { 2351 struct flock64 fl; 2352 struct target_flock64 *target_fl = (void *)arg3; 2353 2354 switch(arg2) { 2355 case F_GETLK64: 2356 ret = get_errno(fcntl(arg1, arg2, &fl)); 2357 if (ret == 0) { 2358 target_fl->l_type = tswap16(fl.l_type); 2359 target_fl->l_whence = tswap16(fl.l_whence); 2360 target_fl->l_start = tswap64(fl.l_start); 2361 target_fl->l_len = tswap64(fl.l_len); 2362 target_fl->l_pid = tswapl(fl.l_pid); 2363 } 2364 break; 2365 2366 case F_SETLK64: 2367 case F_SETLKW64: 2368 fl.l_type = tswap16(target_fl->l_type); 2369 fl.l_whence = tswap16(target_fl->l_whence); 2370 fl.l_start = tswap64(target_fl->l_start); 2371 fl.l_len = tswap64(target_fl->l_len); 2372 fl.l_pid = tswapl(target_fl->l_pid); 2373 ret = get_errno(fcntl(arg1, arg2, &fl)); 2374 break; 2375 default: 2376 ret = get_errno(fcntl(arg1, arg2, arg3)); 2377 break; 2378 } 2379 break; 2380 } 2381 #endif 2382 case TARGET_NR_security: 2383 goto unimplemented; 2384 case TARGET_NR_gettid: 2385 ret = get_errno(gettid()); 2386 break; 2387 case TARGET_NR_readahead: 2388 goto unimplemented; 2389 case TARGET_NR_setxattr: 2390 case TARGET_NR_lsetxattr: 2391 case TARGET_NR_fsetxattr: 2392 case TARGET_NR_getxattr: 2393 case TARGET_NR_lgetxattr: 2394 case TARGET_NR_fgetxattr: 2395 case TARGET_NR_listxattr: 2396 case TARGET_NR_llistxattr: 2397 case TARGET_NR_flistxattr: 2398 case TARGET_NR_removexattr: 2399 case TARGET_NR_lremovexattr: 2400 case TARGET_NR_fremovexattr: 2401 goto unimplemented_nowarn; 2402 case TARGET_NR_set_thread_area: 2403 case TARGET_NR_get_thread_area: 2404 goto unimplemented_nowarn; 2405 default: 2406 unimplemented: 2407 gemu_log("qemu: Unsupported syscall: %d\n", num); 2408 unimplemented_nowarn: 2409 ret = -ENOSYS; 2410 break; 2411 } 2412 fail: 2413 return ret; 2414 } 2415 2416