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 #define __NR_sys_uname __NR_uname 72 #define __NR_sys_getcwd1 __NR_getcwd 73 #define __NR_sys_statfs __NR_statfs 74 #define __NR_sys_fstatfs __NR_fstatfs 75 #define __NR_sys_getdents __NR_getdents 76 #define __NR_sys_getdents64 __NR_getdents64 77 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 78 79 #if defined(__alpha__) || defined (__ia64__) 80 #define __NR__llseek __NR_lseek 81 #endif 82 83 #ifdef __NR_gettid 84 _syscall0(int, gettid) 85 #else 86 static int gettid(void) { 87 return -ENOSYS; 88 } 89 #endif 90 _syscall1(int,sys_uname,struct new_utsname *,buf) 91 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 92 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 93 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 94 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 95 loff_t *, res, uint, wh); 96 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf) 97 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf) 98 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 99 #ifdef __NR_exit_group 100 _syscall1(int,exit_group,int,error_code) 101 #endif 102 103 extern int personality(int); 104 extern int flock(int, int); 105 extern int setfsuid(int); 106 extern int setfsgid(int); 107 extern int setresuid(uid_t, uid_t, uid_t); 108 extern int getresuid(uid_t *, uid_t *, uid_t *); 109 extern int setresgid(gid_t, gid_t, gid_t); 110 extern int getresgid(gid_t *, gid_t *, gid_t *); 111 extern int setgroups(int, gid_t *); 112 113 static inline long get_errno(long ret) 114 { 115 if (ret == -1) 116 return -errno; 117 else 118 return ret; 119 } 120 121 static inline int is_error(long ret) 122 { 123 return (unsigned long)ret >= (unsigned long)(-4096); 124 } 125 126 static char *target_brk; 127 static char *target_original_brk; 128 129 void target_set_brk(char *new_brk) 130 { 131 target_brk = new_brk; 132 target_original_brk = new_brk; 133 } 134 135 static long do_brk(char *new_brk) 136 { 137 char *brk_page; 138 long mapped_addr; 139 int new_alloc_size; 140 141 if (!new_brk) 142 return (long)target_brk; 143 if (new_brk < target_original_brk) 144 return -ENOMEM; 145 146 brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk); 147 148 /* If the new brk is less than this, set it and we're done... */ 149 if (new_brk < brk_page) { 150 target_brk = new_brk; 151 return (long)target_brk; 152 } 153 154 /* We need to allocate more memory after the brk... */ 155 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 156 mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size, 157 PROT_READ|PROT_WRITE, 158 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 159 if (is_error(mapped_addr)) { 160 return mapped_addr; 161 } else { 162 target_brk = new_brk; 163 return (long)target_brk; 164 } 165 } 166 167 static inline fd_set *target_to_host_fds(fd_set *fds, 168 target_long *target_fds, int n) 169 { 170 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 171 return (fd_set *)target_fds; 172 #else 173 int i, b; 174 if (target_fds) { 175 FD_ZERO(fds); 176 for(i = 0;i < n; i++) { 177 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 178 (i & (TARGET_LONG_BITS - 1))) & 1; 179 if (b) 180 FD_SET(i, fds); 181 } 182 return fds; 183 } else { 184 return NULL; 185 } 186 #endif 187 } 188 189 static inline void host_to_target_fds(target_long *target_fds, 190 fd_set *fds, int n) 191 { 192 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 193 /* nothing to do */ 194 #else 195 int i, nw, j, k; 196 target_long v; 197 198 if (target_fds) { 199 nw = n / TARGET_LONG_BITS; 200 k = 0; 201 for(i = 0;i < nw; i++) { 202 v = 0; 203 for(j = 0; j < TARGET_LONG_BITS; j++) { 204 v |= ((FD_ISSET(k, fds) != 0) << j); 205 k++; 206 } 207 target_fds[i] = tswapl(v); 208 } 209 } 210 #endif 211 } 212 213 static inline void host_to_target_rusage(struct target_rusage *target_rusage, 214 const struct rusage *rusage) 215 { 216 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 217 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 218 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 219 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 220 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 221 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 222 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 223 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 224 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 225 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 226 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 227 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 228 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 229 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 230 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 231 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 232 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 233 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 234 } 235 236 static inline void target_to_host_timeval(struct timeval *tv, 237 const struct target_timeval *target_tv) 238 { 239 tv->tv_sec = tswapl(target_tv->tv_sec); 240 tv->tv_usec = tswapl(target_tv->tv_usec); 241 } 242 243 static inline void host_to_target_timeval(struct target_timeval *target_tv, 244 const struct timeval *tv) 245 { 246 target_tv->tv_sec = tswapl(tv->tv_sec); 247 target_tv->tv_usec = tswapl(tv->tv_usec); 248 } 249 250 251 static long do_select(long n, 252 target_long *target_rfds, target_long *target_wfds, 253 target_long *target_efds, struct target_timeval *target_tv) 254 { 255 fd_set rfds, wfds, efds; 256 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 257 struct timeval tv, *tv_ptr; 258 long ret; 259 260 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 261 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 262 efds_ptr = target_to_host_fds(&efds, target_efds, n); 263 264 if (target_tv) { 265 target_to_host_timeval(&tv, target_tv); 266 tv_ptr = &tv; 267 } else { 268 tv_ptr = NULL; 269 } 270 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 271 if (!is_error(ret)) { 272 host_to_target_fds(target_rfds, rfds_ptr, n); 273 host_to_target_fds(target_wfds, wfds_ptr, n); 274 host_to_target_fds(target_efds, efds_ptr, n); 275 276 if (target_tv) { 277 host_to_target_timeval(target_tv, &tv); 278 } 279 } 280 return ret; 281 } 282 283 static inline void target_to_host_sockaddr(struct sockaddr *addr, 284 struct target_sockaddr *target_addr, 285 socklen_t len) 286 { 287 memcpy(addr, target_addr, len); 288 addr->sa_family = tswap16(target_addr->sa_family); 289 } 290 291 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr, 292 struct sockaddr *addr, 293 socklen_t len) 294 { 295 memcpy(target_addr, addr, len); 296 target_addr->sa_family = tswap16(addr->sa_family); 297 } 298 299 static inline void target_to_host_cmsg(struct msghdr *msgh, 300 struct target_msghdr *target_msgh) 301 { 302 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 303 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 304 socklen_t space = 0; 305 306 while (cmsg && target_cmsg) { 307 void *data = CMSG_DATA(cmsg); 308 void *target_data = TARGET_CMSG_DATA(target_cmsg); 309 310 int len = tswapl(target_cmsg->cmsg_len) 311 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 312 313 space += CMSG_SPACE(len); 314 if (space > msgh->msg_controllen) { 315 space -= CMSG_SPACE(len); 316 gemu_log("Host cmsg overflow"); 317 break; 318 } 319 320 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 321 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 322 cmsg->cmsg_len = CMSG_LEN(len); 323 324 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 325 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 326 memcpy(data, target_data, len); 327 } else { 328 int *fd = (int *)data; 329 int *target_fd = (int *)target_data; 330 int i, numfds = len / sizeof(int); 331 332 for (i = 0; i < numfds; i++) 333 fd[i] = tswap32(target_fd[i]); 334 } 335 336 cmsg = CMSG_NXTHDR(msgh, cmsg); 337 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 338 } 339 340 msgh->msg_controllen = space; 341 } 342 343 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 344 struct msghdr *msgh) 345 { 346 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 347 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 348 socklen_t space = 0; 349 350 while (cmsg && target_cmsg) { 351 void *data = CMSG_DATA(cmsg); 352 void *target_data = TARGET_CMSG_DATA(target_cmsg); 353 354 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 355 356 space += TARGET_CMSG_SPACE(len); 357 if (space > tswapl(target_msgh->msg_controllen)) { 358 space -= TARGET_CMSG_SPACE(len); 359 gemu_log("Target cmsg overflow"); 360 break; 361 } 362 363 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 364 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 365 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 366 367 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 368 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 369 memcpy(target_data, data, len); 370 } else { 371 int *fd = (int *)data; 372 int *target_fd = (int *)target_data; 373 int i, numfds = len / sizeof(int); 374 375 for (i = 0; i < numfds; i++) 376 target_fd[i] = tswap32(fd[i]); 377 } 378 379 cmsg = CMSG_NXTHDR(msgh, cmsg); 380 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 381 } 382 383 msgh->msg_controllen = tswapl(space); 384 } 385 386 static long do_setsockopt(int sockfd, int level, int optname, 387 void *optval, socklen_t optlen) 388 { 389 if (level == SOL_TCP) { 390 /* TCP options all take an 'int' value. */ 391 int val; 392 393 if (optlen < sizeof(uint32_t)) 394 return -EINVAL; 395 396 val = tswap32(*(uint32_t *)optval); 397 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 398 } 399 400 else if (level != SOL_SOCKET) { 401 gemu_log("Unsupported setsockopt level: %d\n", level); 402 return -ENOSYS; 403 } 404 405 switch (optname) { 406 /* Options with 'int' argument. */ 407 case SO_DEBUG: 408 case SO_REUSEADDR: 409 case SO_TYPE: 410 case SO_ERROR: 411 case SO_DONTROUTE: 412 case SO_BROADCAST: 413 case SO_SNDBUF: 414 case SO_RCVBUF: 415 case SO_KEEPALIVE: 416 case SO_OOBINLINE: 417 case SO_NO_CHECK: 418 case SO_PRIORITY: 419 case SO_BSDCOMPAT: 420 case SO_PASSCRED: 421 case SO_TIMESTAMP: 422 case SO_RCVLOWAT: 423 case SO_RCVTIMEO: 424 case SO_SNDTIMEO: 425 { 426 int val; 427 if (optlen < sizeof(uint32_t)) 428 return -EINVAL; 429 val = tswap32(*(uint32_t *)optval); 430 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 431 } 432 433 default: 434 gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname); 435 return -ENOSYS; 436 } 437 } 438 439 static long do_getsockopt(int sockfd, int level, int optname, 440 void *optval, socklen_t *optlen) 441 { 442 gemu_log("getsockopt not yet supported\n"); 443 return -ENOSYS; 444 } 445 446 static long do_socketcall(int num, int32_t *vptr) 447 { 448 long ret; 449 450 switch(num) { 451 case SOCKOP_socket: 452 { 453 int domain = tswap32(vptr[0]); 454 int type = tswap32(vptr[1]); 455 int protocol = tswap32(vptr[2]); 456 457 ret = get_errno(socket(domain, type, protocol)); 458 } 459 break; 460 case SOCKOP_bind: 461 { 462 int sockfd = tswap32(vptr[0]); 463 void *target_addr = (void *)tswap32(vptr[1]); 464 socklen_t addrlen = tswap32(vptr[2]); 465 void *addr = alloca(addrlen); 466 467 target_to_host_sockaddr(addr, target_addr, addrlen); 468 ret = get_errno(bind(sockfd, addr, addrlen)); 469 } 470 break; 471 case SOCKOP_connect: 472 { 473 int sockfd = tswap32(vptr[0]); 474 void *target_addr = (void *)tswap32(vptr[1]); 475 socklen_t addrlen = tswap32(vptr[2]); 476 void *addr = alloca(addrlen); 477 478 target_to_host_sockaddr(addr, target_addr, addrlen); 479 ret = get_errno(connect(sockfd, addr, addrlen)); 480 } 481 break; 482 case SOCKOP_listen: 483 { 484 int sockfd = tswap32(vptr[0]); 485 int backlog = tswap32(vptr[1]); 486 487 ret = get_errno(listen(sockfd, backlog)); 488 } 489 break; 490 case SOCKOP_accept: 491 { 492 int sockfd = tswap32(vptr[0]); 493 void *target_addr = (void *)tswap32(vptr[1]); 494 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 495 socklen_t addrlen = tswap32(*target_addrlen); 496 void *addr = alloca(addrlen); 497 498 ret = get_errno(accept(sockfd, addr, &addrlen)); 499 if (!is_error(ret)) { 500 host_to_target_sockaddr(target_addr, addr, addrlen); 501 *target_addrlen = tswap32(addrlen); 502 } 503 } 504 break; 505 case SOCKOP_getsockname: 506 { 507 int sockfd = tswap32(vptr[0]); 508 void *target_addr = (void *)tswap32(vptr[1]); 509 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 510 socklen_t addrlen = tswap32(*target_addrlen); 511 void *addr = alloca(addrlen); 512 513 ret = get_errno(getsockname(sockfd, addr, &addrlen)); 514 if (!is_error(ret)) { 515 host_to_target_sockaddr(target_addr, addr, addrlen); 516 *target_addrlen = tswap32(addrlen); 517 } 518 } 519 break; 520 case SOCKOP_getpeername: 521 { 522 int sockfd = tswap32(vptr[0]); 523 void *target_addr = (void *)tswap32(vptr[1]); 524 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 525 socklen_t addrlen = tswap32(*target_addrlen); 526 void *addr = alloca(addrlen); 527 528 ret = get_errno(getpeername(sockfd, addr, &addrlen)); 529 if (!is_error(ret)) { 530 host_to_target_sockaddr(target_addr, addr, addrlen); 531 *target_addrlen = tswap32(addrlen); 532 } 533 } 534 break; 535 case SOCKOP_socketpair: 536 { 537 int domain = tswap32(vptr[0]); 538 int type = tswap32(vptr[1]); 539 int protocol = tswap32(vptr[2]); 540 int32_t *target_tab = (void *)tswap32(vptr[3]); 541 int tab[2]; 542 543 ret = get_errno(socketpair(domain, type, protocol, tab)); 544 if (!is_error(ret)) { 545 target_tab[0] = tswap32(tab[0]); 546 target_tab[1] = tswap32(tab[1]); 547 } 548 } 549 break; 550 case SOCKOP_send: 551 { 552 int sockfd = tswap32(vptr[0]); 553 void *msg = (void *)tswap32(vptr[1]); 554 size_t len = tswap32(vptr[2]); 555 int flags = tswap32(vptr[3]); 556 557 ret = get_errno(send(sockfd, msg, len, flags)); 558 } 559 break; 560 case SOCKOP_recv: 561 { 562 int sockfd = tswap32(vptr[0]); 563 void *msg = (void *)tswap32(vptr[1]); 564 size_t len = tswap32(vptr[2]); 565 int flags = tswap32(vptr[3]); 566 567 ret = get_errno(recv(sockfd, msg, len, flags)); 568 } 569 break; 570 case SOCKOP_sendto: 571 { 572 int sockfd = tswap32(vptr[0]); 573 void *msg = (void *)tswap32(vptr[1]); 574 size_t len = tswap32(vptr[2]); 575 int flags = tswap32(vptr[3]); 576 void *target_addr = (void *)tswap32(vptr[4]); 577 socklen_t addrlen = tswap32(vptr[5]); 578 void *addr = alloca(addrlen); 579 580 target_to_host_sockaddr(addr, target_addr, addrlen); 581 ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen)); 582 } 583 break; 584 case SOCKOP_recvfrom: 585 { 586 int sockfd = tswap32(vptr[0]); 587 void *msg = (void *)tswap32(vptr[1]); 588 size_t len = tswap32(vptr[2]); 589 int flags = tswap32(vptr[3]); 590 void *target_addr = (void *)tswap32(vptr[4]); 591 uint32_t *target_addrlen = (void *)tswap32(vptr[5]); 592 socklen_t addrlen = tswap32(*target_addrlen); 593 void *addr = alloca(addrlen); 594 595 ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen)); 596 if (!is_error(ret)) { 597 host_to_target_sockaddr(target_addr, addr, addrlen); 598 *target_addrlen = tswap32(addrlen); 599 } 600 } 601 break; 602 case SOCKOP_shutdown: 603 { 604 int sockfd = tswap32(vptr[0]); 605 int how = tswap32(vptr[1]); 606 607 ret = get_errno(shutdown(sockfd, how)); 608 } 609 break; 610 case SOCKOP_sendmsg: 611 case SOCKOP_recvmsg: 612 { 613 int fd; 614 struct target_msghdr *msgp; 615 struct msghdr msg; 616 int flags, count, i; 617 struct iovec *vec; 618 struct target_iovec *target_vec; 619 620 msgp = (void *)tswap32(vptr[1]); 621 msg.msg_name = (void *)tswapl(msgp->msg_name); 622 msg.msg_namelen = tswapl(msgp->msg_namelen); 623 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 624 msg.msg_control = alloca(msg.msg_controllen); 625 msg.msg_flags = tswap32(msgp->msg_flags); 626 627 count = tswapl(msgp->msg_iovlen); 628 vec = alloca(count * sizeof(struct iovec)); 629 target_vec = (void *)tswapl(msgp->msg_iov); 630 for(i = 0;i < count; i++) { 631 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 632 vec[i].iov_len = tswapl(target_vec[i].iov_len); 633 } 634 msg.msg_iovlen = count; 635 msg.msg_iov = vec; 636 637 fd = tswap32(vptr[0]); 638 flags = tswap32(vptr[2]); 639 if (num == SOCKOP_sendmsg) { 640 target_to_host_cmsg(&msg, msgp); 641 ret = get_errno(sendmsg(fd, &msg, flags)); 642 } else { 643 ret = get_errno(recvmsg(fd, &msg, flags)); 644 if (!is_error(ret)) 645 host_to_target_cmsg(msgp, &msg); 646 } 647 } 648 break; 649 case SOCKOP_setsockopt: 650 { 651 int sockfd = tswap32(vptr[0]); 652 int level = tswap32(vptr[1]); 653 int optname = tswap32(vptr[2]); 654 void *optval = (void *)tswap32(vptr[3]); 655 socklen_t optlen = tswap32(vptr[4]); 656 657 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 658 } 659 break; 660 case SOCKOP_getsockopt: 661 { 662 int sockfd = tswap32(vptr[0]); 663 int level = tswap32(vptr[1]); 664 int optname = tswap32(vptr[2]); 665 void *optval = (void *)tswap32(vptr[3]); 666 uint32_t *target_len = (void *)tswap32(vptr[4]); 667 socklen_t optlen = tswap32(*target_len); 668 669 ret = do_getsockopt(sockfd, level, optname, optval, &optlen); 670 if (!is_error(ret)) 671 *target_len = tswap32(optlen); 672 } 673 break; 674 default: 675 gemu_log("Unsupported socketcall: %d\n", num); 676 ret = -ENOSYS; 677 break; 678 } 679 return ret; 680 } 681 682 /* kernel structure types definitions */ 683 #define IFNAMSIZ 16 684 685 #define STRUCT(name, list...) STRUCT_ ## name, 686 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 687 enum { 688 #include "syscall_types.h" 689 }; 690 #undef STRUCT 691 #undef STRUCT_SPECIAL 692 693 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 694 #define STRUCT_SPECIAL(name) 695 #include "syscall_types.h" 696 #undef STRUCT 697 #undef STRUCT_SPECIAL 698 699 typedef struct IOCTLEntry { 700 unsigned int target_cmd; 701 unsigned int host_cmd; 702 const char *name; 703 int access; 704 const argtype arg_type[5]; 705 } IOCTLEntry; 706 707 #define IOC_R 0x0001 708 #define IOC_W 0x0002 709 #define IOC_RW (IOC_R | IOC_W) 710 711 #define MAX_STRUCT_SIZE 4096 712 713 IOCTLEntry ioctl_entries[] = { 714 #define IOCTL(cmd, access, types...) \ 715 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 716 #include "ioctls.h" 717 { 0, 0, }, 718 }; 719 720 static long do_ioctl(long fd, long cmd, long arg) 721 { 722 const IOCTLEntry *ie; 723 const argtype *arg_type; 724 long ret; 725 uint8_t buf_temp[MAX_STRUCT_SIZE]; 726 727 ie = ioctl_entries; 728 for(;;) { 729 if (ie->target_cmd == 0) { 730 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 731 return -ENOSYS; 732 } 733 if (ie->target_cmd == cmd) 734 break; 735 ie++; 736 } 737 arg_type = ie->arg_type; 738 #if defined(DEBUG) 739 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 740 #endif 741 switch(arg_type[0]) { 742 case TYPE_NULL: 743 /* no argument */ 744 ret = get_errno(ioctl(fd, ie->host_cmd)); 745 break; 746 case TYPE_PTRVOID: 747 case TYPE_INT: 748 /* int argment */ 749 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 750 break; 751 case TYPE_PTR: 752 arg_type++; 753 switch(ie->access) { 754 case IOC_R: 755 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 756 if (!is_error(ret)) { 757 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET); 758 } 759 break; 760 case IOC_W: 761 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST); 762 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 763 break; 764 default: 765 case IOC_RW: 766 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST); 767 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 768 if (!is_error(ret)) { 769 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET); 770 } 771 break; 772 } 773 break; 774 default: 775 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 776 ret = -ENOSYS; 777 break; 778 } 779 return ret; 780 } 781 782 bitmask_transtbl iflag_tbl[] = { 783 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 784 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 785 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 786 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 787 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 788 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 789 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 790 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 791 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 792 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 793 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 794 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 795 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 796 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 797 { 0, 0, 0, 0 } 798 }; 799 800 bitmask_transtbl oflag_tbl[] = { 801 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 802 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 803 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 804 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 805 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 806 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 807 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 808 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 809 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 810 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 811 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 812 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 813 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 814 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 815 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 816 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 817 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 818 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 819 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 820 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 821 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 822 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 823 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 824 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 825 { 0, 0, 0, 0 } 826 }; 827 828 bitmask_transtbl cflag_tbl[] = { 829 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 830 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 831 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 832 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 833 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 834 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 835 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 836 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 837 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 838 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 839 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 840 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 841 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 842 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 843 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 844 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 845 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 846 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 847 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 848 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 849 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 850 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 851 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 852 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 853 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 854 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 855 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 856 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 857 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 858 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 859 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 860 { 0, 0, 0, 0 } 861 }; 862 863 bitmask_transtbl lflag_tbl[] = { 864 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 865 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 866 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 867 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 868 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 869 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 870 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 871 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 872 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 873 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 874 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 875 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 876 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 877 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 878 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 879 { 0, 0, 0, 0 } 880 }; 881 882 static void target_to_host_termios (void *dst, const void *src) 883 { 884 struct host_termios *host = dst; 885 const struct target_termios *target = src; 886 887 host->c_iflag = 888 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 889 host->c_oflag = 890 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 891 host->c_cflag = 892 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 893 host->c_lflag = 894 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 895 host->c_line = target->c_line; 896 897 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 898 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 899 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 900 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 901 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 902 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 903 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 904 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 905 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 906 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 907 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 908 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 909 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 910 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 911 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 912 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 913 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 914 } 915 916 static void host_to_target_termios (void *dst, const void *src) 917 { 918 struct target_termios *target = dst; 919 const struct host_termios *host = src; 920 921 target->c_iflag = 922 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 923 target->c_oflag = 924 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 925 target->c_cflag = 926 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 927 target->c_lflag = 928 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 929 target->c_line = host->c_line; 930 931 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 932 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 933 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 934 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 935 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 936 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 937 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 938 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 939 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 940 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 941 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 942 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 943 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 944 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 945 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 946 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 947 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 948 } 949 950 StructEntry struct_termios_def = { 951 .convert = { host_to_target_termios, target_to_host_termios }, 952 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 953 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 954 }; 955 956 static bitmask_transtbl mmap_flags_tbl[] = { 957 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 958 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 959 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 960 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 961 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 962 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 963 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 964 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 965 { 0, 0, 0, 0 } 966 }; 967 968 #if defined(TARGET_I386) 969 970 /* NOTE: there is really one LDT for all the threads */ 971 uint8_t *ldt_table; 972 973 static int read_ldt(void *ptr, unsigned long bytecount) 974 { 975 int size; 976 977 if (!ldt_table) 978 return 0; 979 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 980 if (size > bytecount) 981 size = bytecount; 982 memcpy(ptr, ldt_table, size); 983 return size; 984 } 985 986 /* XXX: add locking support */ 987 static int write_ldt(CPUX86State *env, 988 void *ptr, unsigned long bytecount, int oldmode) 989 { 990 struct target_modify_ldt_ldt_s ldt_info; 991 int seg_32bit, contents, read_exec_only, limit_in_pages; 992 int seg_not_present, useable; 993 uint32_t *lp, entry_1, entry_2; 994 995 if (bytecount != sizeof(ldt_info)) 996 return -EINVAL; 997 memcpy(&ldt_info, ptr, sizeof(ldt_info)); 998 tswap32s(&ldt_info.entry_number); 999 tswapls((long *)&ldt_info.base_addr); 1000 tswap32s(&ldt_info.limit); 1001 tswap32s(&ldt_info.flags); 1002 1003 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 1004 return -EINVAL; 1005 seg_32bit = ldt_info.flags & 1; 1006 contents = (ldt_info.flags >> 1) & 3; 1007 read_exec_only = (ldt_info.flags >> 3) & 1; 1008 limit_in_pages = (ldt_info.flags >> 4) & 1; 1009 seg_not_present = (ldt_info.flags >> 5) & 1; 1010 useable = (ldt_info.flags >> 6) & 1; 1011 1012 if (contents == 3) { 1013 if (oldmode) 1014 return -EINVAL; 1015 if (seg_not_present == 0) 1016 return -EINVAL; 1017 } 1018 /* allocate the LDT */ 1019 if (!ldt_table) { 1020 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1021 if (!ldt_table) 1022 return -ENOMEM; 1023 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1024 env->ldt.base = ldt_table; 1025 env->ldt.limit = 0xffff; 1026 } 1027 1028 /* NOTE: same code as Linux kernel */ 1029 /* Allow LDTs to be cleared by the user. */ 1030 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1031 if (oldmode || 1032 (contents == 0 && 1033 read_exec_only == 1 && 1034 seg_32bit == 0 && 1035 limit_in_pages == 0 && 1036 seg_not_present == 1 && 1037 useable == 0 )) { 1038 entry_1 = 0; 1039 entry_2 = 0; 1040 goto install; 1041 } 1042 } 1043 1044 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1045 (ldt_info.limit & 0x0ffff); 1046 entry_2 = (ldt_info.base_addr & 0xff000000) | 1047 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1048 (ldt_info.limit & 0xf0000) | 1049 ((read_exec_only ^ 1) << 9) | 1050 (contents << 10) | 1051 ((seg_not_present ^ 1) << 15) | 1052 (seg_32bit << 22) | 1053 (limit_in_pages << 23) | 1054 0x7000; 1055 if (!oldmode) 1056 entry_2 |= (useable << 20); 1057 1058 /* Install the new entry ... */ 1059 install: 1060 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1061 lp[0] = tswap32(entry_1); 1062 lp[1] = tswap32(entry_2); 1063 return 0; 1064 } 1065 1066 /* specific and weird i386 syscalls */ 1067 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount) 1068 { 1069 int ret = -ENOSYS; 1070 1071 switch (func) { 1072 case 0: 1073 ret = read_ldt(ptr, bytecount); 1074 break; 1075 case 1: 1076 ret = write_ldt(env, ptr, bytecount, 1); 1077 break; 1078 case 0x11: 1079 ret = write_ldt(env, ptr, bytecount, 0); 1080 break; 1081 } 1082 return ret; 1083 } 1084 1085 #endif /* defined(TARGET_I386) */ 1086 1087 /* this stack is the equivalent of the kernel stack associated with a 1088 thread/process */ 1089 #define NEW_STACK_SIZE 8192 1090 1091 static int clone_func(void *arg) 1092 { 1093 CPUState *env = arg; 1094 cpu_loop(env); 1095 /* never exits */ 1096 return 0; 1097 } 1098 1099 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 1100 { 1101 int ret; 1102 TaskState *ts; 1103 uint8_t *new_stack; 1104 CPUState *new_env; 1105 1106 if (flags & CLONE_VM) { 1107 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 1108 memset(ts, 0, sizeof(TaskState)); 1109 new_stack = ts->stack; 1110 ts->used = 1; 1111 /* add in task state list */ 1112 ts->next = first_task_state; 1113 first_task_state = ts; 1114 /* we create a new CPU instance. */ 1115 new_env = cpu_init(); 1116 memcpy(new_env, env, sizeof(CPUState)); 1117 #if defined(TARGET_I386) 1118 if (!newsp) 1119 newsp = env->regs[R_ESP]; 1120 new_env->regs[R_ESP] = newsp; 1121 new_env->regs[R_EAX] = 0; 1122 #elif defined(TARGET_ARM) 1123 if (!newsp) 1124 newsp = env->regs[13]; 1125 new_env->regs[13] = newsp; 1126 new_env->regs[0] = 0; 1127 #else 1128 #error unsupported target CPU 1129 #endif 1130 new_env->opaque = ts; 1131 #ifdef __ia64__ 1132 ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1133 #else 1134 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1135 #endif 1136 } else { 1137 /* if no CLONE_VM, we consider it is a fork */ 1138 if ((flags & ~CSIGNAL) != 0) 1139 return -EINVAL; 1140 ret = fork(); 1141 } 1142 return ret; 1143 } 1144 1145 static long do_fcntl(int fd, int cmd, unsigned long arg) 1146 { 1147 struct flock fl; 1148 struct target_flock *target_fl = (void *)arg; 1149 long ret; 1150 1151 switch(cmd) { 1152 case TARGET_F_GETLK: 1153 ret = fcntl(fd, cmd, &fl); 1154 if (ret == 0) { 1155 target_fl->l_type = tswap16(fl.l_type); 1156 target_fl->l_whence = tswap16(fl.l_whence); 1157 target_fl->l_start = tswapl(fl.l_start); 1158 target_fl->l_len = tswapl(fl.l_len); 1159 target_fl->l_pid = tswapl(fl.l_pid); 1160 } 1161 break; 1162 1163 case TARGET_F_SETLK: 1164 case TARGET_F_SETLKW: 1165 fl.l_type = tswap16(target_fl->l_type); 1166 fl.l_whence = tswap16(target_fl->l_whence); 1167 fl.l_start = tswapl(target_fl->l_start); 1168 fl.l_len = tswapl(target_fl->l_len); 1169 fl.l_pid = tswapl(target_fl->l_pid); 1170 ret = fcntl(fd, cmd, &fl); 1171 break; 1172 1173 case TARGET_F_GETLK64: 1174 case TARGET_F_SETLK64: 1175 case TARGET_F_SETLKW64: 1176 ret = -1; 1177 errno = EINVAL; 1178 break; 1179 1180 default: 1181 ret = fcntl(fd, cmd, arg); 1182 break; 1183 } 1184 return ret; 1185 } 1186 1187 1188 #define high2lowuid(x) (x) 1189 #define high2lowgid(x) (x) 1190 #define low2highuid(x) (x) 1191 #define low2highgid(x) (x) 1192 1193 void syscall_init(void) 1194 { 1195 IOCTLEntry *ie; 1196 const argtype *arg_type; 1197 int size; 1198 1199 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1200 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1201 #include "syscall_types.h" 1202 #undef STRUCT 1203 #undef STRUCT_SPECIAL 1204 1205 /* we patch the ioctl size if necessary. We rely on the fact that 1206 no ioctl has all the bits at '1' in the size field */ 1207 ie = ioctl_entries; 1208 while (ie->target_cmd != 0) { 1209 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 1210 TARGET_IOC_SIZEMASK) { 1211 arg_type = ie->arg_type; 1212 if (arg_type[0] != TYPE_PTR) { 1213 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 1214 ie->target_cmd); 1215 exit(1); 1216 } 1217 arg_type++; 1218 size = thunk_type_size(arg_type, 0); 1219 ie->target_cmd = (ie->target_cmd & 1220 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 1221 (size << TARGET_IOC_SIZESHIFT); 1222 } 1223 /* automatic consistency check if same arch */ 1224 #if defined(__i386__) && defined(TARGET_I386) 1225 if (ie->target_cmd != ie->host_cmd) { 1226 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 1227 ie->target_cmd, ie->host_cmd); 1228 } 1229 #endif 1230 ie++; 1231 } 1232 } 1233 1234 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 1235 long arg4, long arg5, long arg6) 1236 { 1237 long ret; 1238 struct stat st; 1239 struct kernel_statfs *stfs; 1240 1241 #ifdef DEBUG 1242 gemu_log("syscall %d\n", num); 1243 #endif 1244 switch(num) { 1245 case TARGET_NR_exit: 1246 #ifdef HAVE_GPROF 1247 _mcleanup(); 1248 #endif 1249 /* XXX: should free thread stack and CPU env */ 1250 _exit(arg1); 1251 ret = 0; /* avoid warning */ 1252 break; 1253 case TARGET_NR_read: 1254 page_unprotect_range((void *)arg2, arg3); 1255 ret = get_errno(read(arg1, (void *)arg2, arg3)); 1256 break; 1257 case TARGET_NR_write: 1258 ret = get_errno(write(arg1, (void *)arg2, arg3)); 1259 break; 1260 case TARGET_NR_open: 1261 ret = get_errno(open(path((const char *)arg1), arg2, arg3)); 1262 break; 1263 case TARGET_NR_close: 1264 ret = get_errno(close(arg1)); 1265 break; 1266 case TARGET_NR_brk: 1267 ret = do_brk((char *)arg1); 1268 break; 1269 case TARGET_NR_fork: 1270 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 1271 break; 1272 case TARGET_NR_waitpid: 1273 { 1274 int *status = (int *)arg2; 1275 ret = get_errno(waitpid(arg1, status, arg3)); 1276 if (!is_error(ret) && status) 1277 tswapls((long *)&status); 1278 } 1279 break; 1280 case TARGET_NR_creat: 1281 ret = get_errno(creat((const char *)arg1, arg2)); 1282 break; 1283 case TARGET_NR_link: 1284 ret = get_errno(link((const char *)arg1, (const char *)arg2)); 1285 break; 1286 case TARGET_NR_unlink: 1287 ret = get_errno(unlink((const char *)arg1)); 1288 break; 1289 case TARGET_NR_execve: 1290 { 1291 char **argp, **envp; 1292 int argc, envc; 1293 uint32_t *p; 1294 char **q; 1295 1296 argc = 0; 1297 for (p = (void *)arg2; *p; p++) 1298 argc++; 1299 envc = 0; 1300 for (p = (void *)arg3; *p; p++) 1301 envc++; 1302 1303 argp = alloca((argc + 1) * sizeof(void *)); 1304 envp = alloca((envc + 1) * sizeof(void *)); 1305 1306 for (p = (void *)arg2, q = argp; *p; p++, q++) 1307 *q = (void *)tswap32(*p); 1308 *q = NULL; 1309 1310 for (p = (void *)arg3, q = envp; *p; p++, q++) 1311 *q = (void *)tswap32(*p); 1312 *q = NULL; 1313 1314 ret = get_errno(execve((const char *)arg1, argp, envp)); 1315 } 1316 break; 1317 case TARGET_NR_chdir: 1318 ret = get_errno(chdir((const char *)arg1)); 1319 break; 1320 case TARGET_NR_time: 1321 { 1322 int *time_ptr = (int *)arg1; 1323 ret = get_errno(time((time_t *)time_ptr)); 1324 if (!is_error(ret) && time_ptr) 1325 tswap32s(time_ptr); 1326 } 1327 break; 1328 case TARGET_NR_mknod: 1329 ret = get_errno(mknod((const char *)arg1, arg2, arg3)); 1330 break; 1331 case TARGET_NR_chmod: 1332 ret = get_errno(chmod((const char *)arg1, arg2)); 1333 break; 1334 case TARGET_NR_lchown: 1335 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 1336 break; 1337 case TARGET_NR_break: 1338 goto unimplemented; 1339 case TARGET_NR_oldstat: 1340 goto unimplemented; 1341 case TARGET_NR_lseek: 1342 ret = get_errno(lseek(arg1, arg2, arg3)); 1343 break; 1344 case TARGET_NR_getpid: 1345 ret = get_errno(getpid()); 1346 break; 1347 case TARGET_NR_mount: 1348 /* need to look at the data field */ 1349 goto unimplemented; 1350 case TARGET_NR_umount: 1351 ret = get_errno(umount((const char *)arg1)); 1352 break; 1353 case TARGET_NR_setuid: 1354 ret = get_errno(setuid(low2highuid(arg1))); 1355 break; 1356 case TARGET_NR_getuid: 1357 ret = get_errno(getuid()); 1358 break; 1359 case TARGET_NR_stime: 1360 { 1361 int *time_ptr = (int *)arg1; 1362 if (time_ptr) 1363 tswap32s(time_ptr); 1364 ret = get_errno(stime((time_t *)time_ptr)); 1365 } 1366 break; 1367 case TARGET_NR_ptrace: 1368 goto unimplemented; 1369 case TARGET_NR_alarm: 1370 ret = alarm(arg1); 1371 break; 1372 case TARGET_NR_oldfstat: 1373 goto unimplemented; 1374 case TARGET_NR_pause: 1375 ret = get_errno(pause()); 1376 break; 1377 case TARGET_NR_utime: 1378 goto unimplemented; 1379 case TARGET_NR_stty: 1380 goto unimplemented; 1381 case TARGET_NR_gtty: 1382 goto unimplemented; 1383 case TARGET_NR_access: 1384 ret = get_errno(access((const char *)arg1, arg2)); 1385 break; 1386 case TARGET_NR_nice: 1387 ret = get_errno(nice(arg1)); 1388 break; 1389 case TARGET_NR_ftime: 1390 goto unimplemented; 1391 case TARGET_NR_sync: 1392 sync(); 1393 ret = 0; 1394 break; 1395 case TARGET_NR_kill: 1396 ret = get_errno(kill(arg1, arg2)); 1397 break; 1398 case TARGET_NR_rename: 1399 ret = get_errno(rename((const char *)arg1, (const char *)arg2)); 1400 break; 1401 case TARGET_NR_mkdir: 1402 ret = get_errno(mkdir((const char *)arg1, arg2)); 1403 break; 1404 case TARGET_NR_rmdir: 1405 ret = get_errno(rmdir((const char *)arg1)); 1406 break; 1407 case TARGET_NR_dup: 1408 ret = get_errno(dup(arg1)); 1409 break; 1410 case TARGET_NR_pipe: 1411 { 1412 int *pipe_ptr = (int *)arg1; 1413 ret = get_errno(pipe(pipe_ptr)); 1414 if (!is_error(ret)) { 1415 tswap32s(&pipe_ptr[0]); 1416 tswap32s(&pipe_ptr[1]); 1417 } 1418 } 1419 break; 1420 case TARGET_NR_times: 1421 { 1422 struct target_tms *tmsp = (void *)arg1; 1423 struct tms tms; 1424 ret = get_errno(times(&tms)); 1425 if (tmsp) { 1426 tmsp->tms_utime = tswapl(tms.tms_utime); 1427 tmsp->tms_stime = tswapl(tms.tms_stime); 1428 tmsp->tms_cutime = tswapl(tms.tms_cutime); 1429 tmsp->tms_cstime = tswapl(tms.tms_cstime); 1430 } 1431 } 1432 break; 1433 case TARGET_NR_prof: 1434 goto unimplemented; 1435 case TARGET_NR_setgid: 1436 ret = get_errno(setgid(low2highgid(arg1))); 1437 break; 1438 case TARGET_NR_getgid: 1439 ret = get_errno(getgid()); 1440 break; 1441 case TARGET_NR_signal: 1442 goto unimplemented; 1443 case TARGET_NR_geteuid: 1444 ret = get_errno(geteuid()); 1445 break; 1446 case TARGET_NR_getegid: 1447 ret = get_errno(getegid()); 1448 break; 1449 case TARGET_NR_acct: 1450 goto unimplemented; 1451 case TARGET_NR_umount2: 1452 ret = get_errno(umount2((const char *)arg1, arg2)); 1453 break; 1454 case TARGET_NR_lock: 1455 goto unimplemented; 1456 case TARGET_NR_ioctl: 1457 ret = do_ioctl(arg1, arg2, arg3); 1458 break; 1459 case TARGET_NR_fcntl: 1460 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 1461 break; 1462 case TARGET_NR_mpx: 1463 goto unimplemented; 1464 case TARGET_NR_setpgid: 1465 ret = get_errno(setpgid(arg1, arg2)); 1466 break; 1467 case TARGET_NR_ulimit: 1468 goto unimplemented; 1469 case TARGET_NR_oldolduname: 1470 goto unimplemented; 1471 case TARGET_NR_umask: 1472 ret = get_errno(umask(arg1)); 1473 break; 1474 case TARGET_NR_chroot: 1475 ret = get_errno(chroot((const char *)arg1)); 1476 break; 1477 case TARGET_NR_ustat: 1478 goto unimplemented; 1479 case TARGET_NR_dup2: 1480 ret = get_errno(dup2(arg1, arg2)); 1481 break; 1482 case TARGET_NR_getppid: 1483 ret = get_errno(getppid()); 1484 break; 1485 case TARGET_NR_getpgrp: 1486 ret = get_errno(getpgrp()); 1487 break; 1488 case TARGET_NR_setsid: 1489 ret = get_errno(setsid()); 1490 break; 1491 case TARGET_NR_sigaction: 1492 { 1493 struct target_old_sigaction *old_act = (void *)arg2; 1494 struct target_old_sigaction *old_oact = (void *)arg3; 1495 struct target_sigaction act, oact, *pact; 1496 if (old_act) { 1497 act._sa_handler = old_act->_sa_handler; 1498 target_siginitset(&act.sa_mask, old_act->sa_mask); 1499 act.sa_flags = old_act->sa_flags; 1500 act.sa_restorer = old_act->sa_restorer; 1501 pact = &act; 1502 } else { 1503 pact = NULL; 1504 } 1505 ret = get_errno(do_sigaction(arg1, pact, &oact)); 1506 if (!is_error(ret) && old_oact) { 1507 old_oact->_sa_handler = oact._sa_handler; 1508 old_oact->sa_mask = oact.sa_mask.sig[0]; 1509 old_oact->sa_flags = oact.sa_flags; 1510 old_oact->sa_restorer = oact.sa_restorer; 1511 } 1512 } 1513 break; 1514 case TARGET_NR_rt_sigaction: 1515 ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3)); 1516 break; 1517 case TARGET_NR_sgetmask: 1518 { 1519 sigset_t cur_set; 1520 target_ulong target_set; 1521 sigprocmask(0, NULL, &cur_set); 1522 host_to_target_old_sigset(&target_set, &cur_set); 1523 ret = target_set; 1524 } 1525 break; 1526 case TARGET_NR_ssetmask: 1527 { 1528 sigset_t set, oset, cur_set; 1529 target_ulong target_set = arg1; 1530 sigprocmask(0, NULL, &cur_set); 1531 target_to_host_old_sigset(&set, &target_set); 1532 sigorset(&set, &set, &cur_set); 1533 sigprocmask(SIG_SETMASK, &set, &oset); 1534 host_to_target_old_sigset(&target_set, &oset); 1535 ret = target_set; 1536 } 1537 break; 1538 case TARGET_NR_sigprocmask: 1539 { 1540 int how = arg1; 1541 sigset_t set, oldset, *set_ptr; 1542 target_ulong *pset = (void *)arg2, *poldset = (void *)arg3; 1543 1544 if (pset) { 1545 switch(how) { 1546 case TARGET_SIG_BLOCK: 1547 how = SIG_BLOCK; 1548 break; 1549 case TARGET_SIG_UNBLOCK: 1550 how = SIG_UNBLOCK; 1551 break; 1552 case TARGET_SIG_SETMASK: 1553 how = SIG_SETMASK; 1554 break; 1555 default: 1556 ret = -EINVAL; 1557 goto fail; 1558 } 1559 target_to_host_old_sigset(&set, pset); 1560 set_ptr = &set; 1561 } else { 1562 how = 0; 1563 set_ptr = NULL; 1564 } 1565 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 1566 if (!is_error(ret) && poldset) { 1567 host_to_target_old_sigset(poldset, &oldset); 1568 } 1569 } 1570 break; 1571 case TARGET_NR_rt_sigprocmask: 1572 { 1573 int how = arg1; 1574 sigset_t set, oldset, *set_ptr; 1575 target_sigset_t *pset = (void *)arg2; 1576 target_sigset_t *poldset = (void *)arg3; 1577 1578 if (pset) { 1579 switch(how) { 1580 case TARGET_SIG_BLOCK: 1581 how = SIG_BLOCK; 1582 break; 1583 case TARGET_SIG_UNBLOCK: 1584 how = SIG_UNBLOCK; 1585 break; 1586 case TARGET_SIG_SETMASK: 1587 how = SIG_SETMASK; 1588 break; 1589 default: 1590 ret = -EINVAL; 1591 goto fail; 1592 } 1593 target_to_host_sigset(&set, pset); 1594 set_ptr = &set; 1595 } else { 1596 how = 0; 1597 set_ptr = NULL; 1598 } 1599 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 1600 if (!is_error(ret) && poldset) { 1601 host_to_target_sigset(poldset, &oldset); 1602 } 1603 } 1604 break; 1605 case TARGET_NR_sigpending: 1606 { 1607 sigset_t set; 1608 ret = get_errno(sigpending(&set)); 1609 if (!is_error(ret)) { 1610 host_to_target_old_sigset((target_ulong *)arg1, &set); 1611 } 1612 } 1613 break; 1614 case TARGET_NR_rt_sigpending: 1615 { 1616 sigset_t set; 1617 ret = get_errno(sigpending(&set)); 1618 if (!is_error(ret)) { 1619 host_to_target_sigset((target_sigset_t *)arg1, &set); 1620 } 1621 } 1622 break; 1623 case TARGET_NR_sigsuspend: 1624 { 1625 sigset_t set; 1626 target_to_host_old_sigset(&set, (target_ulong *)arg1); 1627 ret = get_errno(sigsuspend(&set)); 1628 } 1629 break; 1630 case TARGET_NR_rt_sigsuspend: 1631 { 1632 sigset_t set; 1633 target_to_host_sigset(&set, (target_sigset_t *)arg1); 1634 ret = get_errno(sigsuspend(&set)); 1635 } 1636 break; 1637 case TARGET_NR_rt_sigtimedwait: 1638 { 1639 target_sigset_t *target_set = (void *)arg1; 1640 target_siginfo_t *target_uinfo = (void *)arg2; 1641 struct target_timespec *target_uts = (void *)arg3; 1642 sigset_t set; 1643 struct timespec uts, *puts; 1644 siginfo_t uinfo; 1645 1646 target_to_host_sigset(&set, target_set); 1647 if (target_uts) { 1648 puts = &uts; 1649 puts->tv_sec = tswapl(target_uts->tv_sec); 1650 puts->tv_nsec = tswapl(target_uts->tv_nsec); 1651 } else { 1652 puts = NULL; 1653 } 1654 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 1655 if (!is_error(ret) && target_uinfo) { 1656 host_to_target_siginfo(target_uinfo, &uinfo); 1657 } 1658 } 1659 break; 1660 case TARGET_NR_rt_sigqueueinfo: 1661 { 1662 siginfo_t uinfo; 1663 target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3); 1664 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 1665 } 1666 break; 1667 case TARGET_NR_sigreturn: 1668 /* NOTE: ret is eax, so not transcoding must be done */ 1669 ret = do_sigreturn(cpu_env); 1670 break; 1671 case TARGET_NR_rt_sigreturn: 1672 /* NOTE: ret is eax, so not transcoding must be done */ 1673 ret = do_rt_sigreturn(cpu_env); 1674 break; 1675 case TARGET_NR_setreuid: 1676 ret = get_errno(setreuid(arg1, arg2)); 1677 break; 1678 case TARGET_NR_setregid: 1679 ret = get_errno(setregid(arg1, arg2)); 1680 break; 1681 case TARGET_NR_sethostname: 1682 ret = get_errno(sethostname((const char *)arg1, arg2)); 1683 break; 1684 case TARGET_NR_setrlimit: 1685 { 1686 /* XXX: convert resource ? */ 1687 int resource = arg1; 1688 struct target_rlimit *target_rlim = (void *)arg2; 1689 struct rlimit rlim; 1690 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 1691 rlim.rlim_max = tswapl(target_rlim->rlim_max); 1692 ret = get_errno(setrlimit(resource, &rlim)); 1693 } 1694 break; 1695 case TARGET_NR_getrlimit: 1696 { 1697 /* XXX: convert resource ? */ 1698 int resource = arg1; 1699 struct target_rlimit *target_rlim = (void *)arg2; 1700 struct rlimit rlim; 1701 1702 ret = get_errno(getrlimit(resource, &rlim)); 1703 if (!is_error(ret)) { 1704 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 1705 target_rlim->rlim_max = tswapl(rlim.rlim_max); 1706 } 1707 } 1708 break; 1709 case TARGET_NR_getrusage: 1710 { 1711 struct rusage rusage; 1712 struct target_rusage *target_rusage = (void *)arg2; 1713 ret = get_errno(getrusage(arg1, &rusage)); 1714 if (!is_error(ret)) { 1715 host_to_target_rusage(target_rusage, &rusage); 1716 } 1717 } 1718 break; 1719 case TARGET_NR_gettimeofday: 1720 { 1721 struct target_timeval *target_tv = (void *)arg1; 1722 struct timeval tv; 1723 ret = get_errno(gettimeofday(&tv, NULL)); 1724 if (!is_error(ret)) { 1725 host_to_target_timeval(target_tv, &tv); 1726 } 1727 } 1728 break; 1729 case TARGET_NR_settimeofday: 1730 { 1731 struct target_timeval *target_tv = (void *)arg1; 1732 struct timeval tv; 1733 target_to_host_timeval(&tv, target_tv); 1734 ret = get_errno(settimeofday(&tv, NULL)); 1735 } 1736 break; 1737 case TARGET_NR_getgroups: 1738 { 1739 int gidsetsize = arg1; 1740 uint16_t *target_grouplist = (void *)arg2; 1741 gid_t *grouplist; 1742 int i; 1743 1744 grouplist = alloca(gidsetsize * sizeof(gid_t)); 1745 ret = get_errno(getgroups(gidsetsize, grouplist)); 1746 if (!is_error(ret)) { 1747 for(i = 0;i < gidsetsize; i++) 1748 target_grouplist[i] = tswap16(grouplist[i]); 1749 } 1750 } 1751 break; 1752 case TARGET_NR_setgroups: 1753 { 1754 int gidsetsize = arg1; 1755 uint16_t *target_grouplist = (void *)arg2; 1756 gid_t *grouplist; 1757 int i; 1758 1759 grouplist = alloca(gidsetsize * sizeof(gid_t)); 1760 for(i = 0;i < gidsetsize; i++) 1761 grouplist[i] = tswap16(target_grouplist[i]); 1762 ret = get_errno(setgroups(gidsetsize, grouplist)); 1763 } 1764 break; 1765 case TARGET_NR_select: 1766 { 1767 struct target_sel_arg_struct *sel = (void *)arg1; 1768 sel->n = tswapl(sel->n); 1769 sel->inp = tswapl(sel->inp); 1770 sel->outp = tswapl(sel->outp); 1771 sel->exp = tswapl(sel->exp); 1772 sel->tvp = tswapl(sel->tvp); 1773 ret = do_select(sel->n, (void *)sel->inp, (void *)sel->outp, 1774 (void *)sel->exp, (void *)sel->tvp); 1775 } 1776 break; 1777 case TARGET_NR_symlink: 1778 ret = get_errno(symlink((const char *)arg1, (const char *)arg2)); 1779 break; 1780 case TARGET_NR_oldlstat: 1781 goto unimplemented; 1782 case TARGET_NR_readlink: 1783 ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3)); 1784 break; 1785 case TARGET_NR_uselib: 1786 goto unimplemented; 1787 case TARGET_NR_swapon: 1788 ret = get_errno(swapon((const char *)arg1, arg2)); 1789 break; 1790 case TARGET_NR_reboot: 1791 goto unimplemented; 1792 case TARGET_NR_readdir: 1793 goto unimplemented; 1794 #ifdef TARGET_I386 1795 case TARGET_NR_mmap: 1796 { 1797 uint32_t v1, v2, v3, v4, v5, v6, *vptr; 1798 vptr = (uint32_t *)arg1; 1799 v1 = tswap32(vptr[0]); 1800 v2 = tswap32(vptr[1]); 1801 v3 = tswap32(vptr[2]); 1802 v4 = tswap32(vptr[3]); 1803 v5 = tswap32(vptr[4]); 1804 v6 = tswap32(vptr[5]); 1805 ret = get_errno(target_mmap(v1, v2, v3, 1806 target_to_host_bitmask(v4, mmap_flags_tbl), 1807 v5, v6)); 1808 } 1809 break; 1810 #endif 1811 #ifdef TARGET_I386 1812 case TARGET_NR_mmap2: 1813 #else 1814 case TARGET_NR_mmap: 1815 #endif 1816 ret = get_errno(target_mmap(arg1, arg2, arg3, 1817 target_to_host_bitmask(arg4, mmap_flags_tbl), 1818 arg5, 1819 arg6 << TARGET_PAGE_BITS)); 1820 break; 1821 case TARGET_NR_munmap: 1822 ret = get_errno(target_munmap(arg1, arg2)); 1823 break; 1824 case TARGET_NR_mprotect: 1825 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 1826 break; 1827 case TARGET_NR_mremap: 1828 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 1829 break; 1830 case TARGET_NR_msync: 1831 ret = get_errno(msync((void *)arg1, arg2, arg3)); 1832 break; 1833 case TARGET_NR_mlock: 1834 ret = get_errno(mlock((void *)arg1, arg2)); 1835 break; 1836 case TARGET_NR_munlock: 1837 ret = get_errno(munlock((void *)arg1, arg2)); 1838 break; 1839 case TARGET_NR_mlockall: 1840 ret = get_errno(mlockall(arg1)); 1841 break; 1842 case TARGET_NR_munlockall: 1843 ret = get_errno(munlockall()); 1844 break; 1845 case TARGET_NR_truncate: 1846 ret = get_errno(truncate((const char *)arg1, arg2)); 1847 break; 1848 case TARGET_NR_ftruncate: 1849 ret = get_errno(ftruncate(arg1, arg2)); 1850 break; 1851 case TARGET_NR_fchmod: 1852 ret = get_errno(fchmod(arg1, arg2)); 1853 break; 1854 case TARGET_NR_fchown: 1855 ret = get_errno(fchown(arg1, arg2, arg3)); 1856 break; 1857 case TARGET_NR_getpriority: 1858 ret = get_errno(getpriority(arg1, arg2)); 1859 break; 1860 case TARGET_NR_setpriority: 1861 ret = get_errno(setpriority(arg1, arg2, arg3)); 1862 break; 1863 case TARGET_NR_profil: 1864 goto unimplemented; 1865 case TARGET_NR_statfs: 1866 stfs = (void *)arg2; 1867 ret = get_errno(sys_statfs(path((const char *)arg1), stfs)); 1868 convert_statfs: 1869 if (!is_error(ret)) { 1870 tswap32s(&stfs->f_type); 1871 tswap32s(&stfs->f_bsize); 1872 tswap32s(&stfs->f_blocks); 1873 tswap32s(&stfs->f_bfree); 1874 tswap32s(&stfs->f_bavail); 1875 tswap32s(&stfs->f_files); 1876 tswap32s(&stfs->f_ffree); 1877 tswap32s(&stfs->f_fsid.val[0]); 1878 tswap32s(&stfs->f_fsid.val[1]); 1879 tswap32s(&stfs->f_namelen); 1880 } 1881 break; 1882 case TARGET_NR_fstatfs: 1883 stfs = (void *)arg2; 1884 ret = get_errno(sys_fstatfs(arg1, stfs)); 1885 goto convert_statfs; 1886 case TARGET_NR_ioperm: 1887 goto unimplemented; 1888 case TARGET_NR_socketcall: 1889 ret = do_socketcall(arg1, (int32_t *)arg2); 1890 break; 1891 case TARGET_NR_syslog: 1892 goto unimplemented; 1893 case TARGET_NR_setitimer: 1894 { 1895 struct target_itimerval *target_value = (void *)arg2; 1896 struct target_itimerval *target_ovalue = (void *)arg3; 1897 struct itimerval value, ovalue, *pvalue; 1898 1899 if (target_value) { 1900 pvalue = &value; 1901 target_to_host_timeval(&pvalue->it_interval, 1902 &target_value->it_interval); 1903 target_to_host_timeval(&pvalue->it_value, 1904 &target_value->it_value); 1905 } else { 1906 pvalue = NULL; 1907 } 1908 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 1909 if (!is_error(ret) && target_ovalue) { 1910 host_to_target_timeval(&target_ovalue->it_interval, 1911 &ovalue.it_interval); 1912 host_to_target_timeval(&target_ovalue->it_value, 1913 &ovalue.it_value); 1914 } 1915 } 1916 break; 1917 case TARGET_NR_getitimer: 1918 { 1919 struct target_itimerval *target_value = (void *)arg2; 1920 struct itimerval value; 1921 1922 ret = get_errno(getitimer(arg1, &value)); 1923 if (!is_error(ret) && target_value) { 1924 host_to_target_timeval(&target_value->it_interval, 1925 &value.it_interval); 1926 host_to_target_timeval(&target_value->it_value, 1927 &value.it_value); 1928 } 1929 } 1930 break; 1931 case TARGET_NR_stat: 1932 ret = get_errno(stat(path((const char *)arg1), &st)); 1933 goto do_stat; 1934 case TARGET_NR_lstat: 1935 ret = get_errno(lstat(path((const char *)arg1), &st)); 1936 goto do_stat; 1937 case TARGET_NR_fstat: 1938 { 1939 ret = get_errno(fstat(arg1, &st)); 1940 do_stat: 1941 if (!is_error(ret)) { 1942 struct target_stat *target_st = (void *)arg2; 1943 target_st->st_dev = tswap16(st.st_dev); 1944 target_st->st_ino = tswapl(st.st_ino); 1945 target_st->st_mode = tswap16(st.st_mode); 1946 target_st->st_nlink = tswap16(st.st_nlink); 1947 target_st->st_uid = tswap16(st.st_uid); 1948 target_st->st_gid = tswap16(st.st_gid); 1949 target_st->st_rdev = tswap16(st.st_rdev); 1950 target_st->st_size = tswapl(st.st_size); 1951 target_st->st_blksize = tswapl(st.st_blksize); 1952 target_st->st_blocks = tswapl(st.st_blocks); 1953 target_st->target_st_atime = tswapl(st.st_atime); 1954 target_st->target_st_mtime = tswapl(st.st_mtime); 1955 target_st->target_st_ctime = tswapl(st.st_ctime); 1956 } 1957 } 1958 break; 1959 case TARGET_NR_olduname: 1960 goto unimplemented; 1961 case TARGET_NR_iopl: 1962 goto unimplemented; 1963 case TARGET_NR_vhangup: 1964 ret = get_errno(vhangup()); 1965 break; 1966 case TARGET_NR_idle: 1967 goto unimplemented; 1968 case TARGET_NR_wait4: 1969 { 1970 int status; 1971 target_long *status_ptr = (void *)arg2; 1972 struct rusage rusage, *rusage_ptr; 1973 struct target_rusage *target_rusage = (void *)arg4; 1974 if (target_rusage) 1975 rusage_ptr = &rusage; 1976 else 1977 rusage_ptr = NULL; 1978 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 1979 if (!is_error(ret)) { 1980 if (status_ptr) 1981 *status_ptr = tswap32(status); 1982 if (target_rusage) { 1983 host_to_target_rusage(target_rusage, &rusage); 1984 } 1985 } 1986 } 1987 break; 1988 case TARGET_NR_swapoff: 1989 ret = get_errno(swapoff((const char *)arg1)); 1990 break; 1991 case TARGET_NR_sysinfo: 1992 goto unimplemented; 1993 case TARGET_NR_ipc: 1994 goto unimplemented; 1995 case TARGET_NR_fsync: 1996 ret = get_errno(fsync(arg1)); 1997 break; 1998 case TARGET_NR_clone: 1999 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 2000 break; 2001 #ifdef __NR_exit_group 2002 /* new thread calls */ 2003 case TARGET_NR_exit_group: 2004 ret = get_errno(exit_group(arg1)); 2005 break; 2006 #endif 2007 case TARGET_NR_setdomainname: 2008 ret = get_errno(setdomainname((const char *)arg1, arg2)); 2009 break; 2010 case TARGET_NR_uname: 2011 /* no need to transcode because we use the linux syscall */ 2012 ret = get_errno(sys_uname((struct new_utsname *)arg1)); 2013 break; 2014 #ifdef TARGET_I386 2015 case TARGET_NR_modify_ldt: 2016 ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3)); 2017 break; 2018 case TARGET_NR_vm86old: 2019 goto unimplemented; 2020 case TARGET_NR_vm86: 2021 ret = do_vm86(cpu_env, arg1, (void *)arg2); 2022 break; 2023 #endif 2024 case TARGET_NR_adjtimex: 2025 goto unimplemented; 2026 case TARGET_NR_create_module: 2027 case TARGET_NR_init_module: 2028 case TARGET_NR_delete_module: 2029 case TARGET_NR_get_kernel_syms: 2030 goto unimplemented; 2031 case TARGET_NR_quotactl: 2032 goto unimplemented; 2033 case TARGET_NR_getpgid: 2034 ret = get_errno(getpgid(arg1)); 2035 break; 2036 case TARGET_NR_fchdir: 2037 ret = get_errno(fchdir(arg1)); 2038 break; 2039 case TARGET_NR_bdflush: 2040 goto unimplemented; 2041 case TARGET_NR_sysfs: 2042 goto unimplemented; 2043 case TARGET_NR_personality: 2044 ret = get_errno(personality(arg1)); 2045 break; 2046 case TARGET_NR_afs_syscall: 2047 goto unimplemented; 2048 case TARGET_NR_setfsuid: 2049 ret = get_errno(setfsuid(arg1)); 2050 break; 2051 case TARGET_NR_setfsgid: 2052 ret = get_errno(setfsgid(arg1)); 2053 break; 2054 case TARGET_NR__llseek: 2055 { 2056 int64_t res; 2057 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 2058 *(int64_t *)arg4 = tswap64(res); 2059 } 2060 break; 2061 case TARGET_NR_getdents: 2062 #if TARGET_LONG_SIZE != 4 2063 #error not supported 2064 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 2065 { 2066 struct target_dirent *target_dirp = (void *)arg2; 2067 struct dirent *dirp; 2068 long count = arg3; 2069 2070 dirp = malloc(count); 2071 if (!dirp) 2072 return -ENOMEM; 2073 2074 ret = get_errno(sys_getdents(arg1, dirp, count)); 2075 if (!is_error(ret)) { 2076 struct dirent *de; 2077 struct target_dirent *tde; 2078 int len = ret; 2079 int reclen, treclen; 2080 int count1, tnamelen; 2081 2082 count1 = 0; 2083 de = dirp; 2084 tde = target_dirp; 2085 while (len > 0) { 2086 reclen = de->d_reclen; 2087 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 2088 tde->d_reclen = tswap16(treclen); 2089 tde->d_ino = tswapl(de->d_ino); 2090 tde->d_off = tswapl(de->d_off); 2091 tnamelen = treclen - (2 * sizeof(target_long) + 2); 2092 if (tnamelen > 256) 2093 tnamelen = 256; 2094 strncpy(tde->d_name, de->d_name, tnamelen); 2095 de = (struct dirent *)((char *)de + reclen); 2096 len -= reclen; 2097 tde = (struct dirent *)((char *)tde + treclen); 2098 count1 += treclen; 2099 } 2100 ret = count1; 2101 } 2102 free(dirp); 2103 } 2104 #else 2105 { 2106 struct dirent *dirp = (void *)arg2; 2107 long count = arg3; 2108 2109 ret = get_errno(sys_getdents(arg1, dirp, count)); 2110 if (!is_error(ret)) { 2111 struct dirent *de; 2112 int len = ret; 2113 int reclen; 2114 de = dirp; 2115 while (len > 0) { 2116 reclen = de->d_reclen; 2117 if (reclen > len) 2118 break; 2119 de->d_reclen = tswap16(reclen); 2120 tswapls(&de->d_ino); 2121 tswapls(&de->d_off); 2122 de = (struct dirent *)((char *)de + reclen); 2123 len -= reclen; 2124 } 2125 } 2126 } 2127 #endif 2128 break; 2129 case TARGET_NR_getdents64: 2130 { 2131 struct dirent64 *dirp = (void *)arg2; 2132 long count = arg3; 2133 ret = get_errno(sys_getdents64(arg1, dirp, count)); 2134 if (!is_error(ret)) { 2135 struct dirent64 *de; 2136 int len = ret; 2137 int reclen; 2138 de = dirp; 2139 while (len > 0) { 2140 reclen = de->d_reclen; 2141 if (reclen > len) 2142 break; 2143 de->d_reclen = tswap16(reclen); 2144 tswap64s(&de->d_ino); 2145 tswap64s(&de->d_off); 2146 de = (struct dirent64 *)((char *)de + reclen); 2147 len -= reclen; 2148 } 2149 } 2150 } 2151 break; 2152 case TARGET_NR__newselect: 2153 ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 2154 (void *)arg5); 2155 break; 2156 case TARGET_NR_poll: 2157 { 2158 struct target_pollfd *target_pfd = (void *)arg1; 2159 unsigned int nfds = arg2; 2160 int timeout = arg3; 2161 struct pollfd *pfd; 2162 unsigned int i; 2163 2164 pfd = alloca(sizeof(struct pollfd) * nfds); 2165 for(i = 0; i < nfds; i++) { 2166 pfd[i].fd = tswap32(target_pfd[i].fd); 2167 pfd[i].events = tswap16(target_pfd[i].events); 2168 } 2169 ret = get_errno(poll(pfd, nfds, timeout)); 2170 if (!is_error(ret)) { 2171 for(i = 0; i < nfds; i++) { 2172 target_pfd[i].revents = tswap16(pfd[i].revents); 2173 } 2174 } 2175 } 2176 break; 2177 case TARGET_NR_flock: 2178 /* NOTE: the flock constant seems to be the same for every 2179 Linux platform */ 2180 ret = get_errno(flock(arg1, arg2)); 2181 break; 2182 case TARGET_NR_readv: 2183 { 2184 int count = arg3; 2185 int i; 2186 struct iovec *vec; 2187 struct target_iovec *target_vec = (void *)arg2; 2188 2189 vec = alloca(count * sizeof(struct iovec)); 2190 for(i = 0;i < count; i++) { 2191 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 2192 vec[i].iov_len = tswapl(target_vec[i].iov_len); 2193 } 2194 ret = get_errno(readv(arg1, vec, count)); 2195 } 2196 break; 2197 case TARGET_NR_writev: 2198 { 2199 int count = arg3; 2200 int i; 2201 struct iovec *vec; 2202 struct target_iovec *target_vec = (void *)arg2; 2203 2204 vec = alloca(count * sizeof(struct iovec)); 2205 for(i = 0;i < count; i++) { 2206 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 2207 vec[i].iov_len = tswapl(target_vec[i].iov_len); 2208 } 2209 ret = get_errno(writev(arg1, vec, count)); 2210 } 2211 break; 2212 case TARGET_NR_getsid: 2213 ret = get_errno(getsid(arg1)); 2214 break; 2215 case TARGET_NR_fdatasync: 2216 ret = get_errno(fdatasync(arg1)); 2217 break; 2218 case TARGET_NR__sysctl: 2219 goto unimplemented; 2220 case TARGET_NR_sched_setparam: 2221 { 2222 struct sched_param *target_schp = (void *)arg2; 2223 struct sched_param schp; 2224 schp.sched_priority = tswap32(target_schp->sched_priority); 2225 ret = get_errno(sched_setparam(arg1, &schp)); 2226 } 2227 break; 2228 case TARGET_NR_sched_getparam: 2229 { 2230 struct sched_param *target_schp = (void *)arg2; 2231 struct sched_param schp; 2232 ret = get_errno(sched_getparam(arg1, &schp)); 2233 if (!is_error(ret)) { 2234 target_schp->sched_priority = tswap32(schp.sched_priority); 2235 } 2236 } 2237 break; 2238 case TARGET_NR_sched_setscheduler: 2239 { 2240 struct sched_param *target_schp = (void *)arg3; 2241 struct sched_param schp; 2242 schp.sched_priority = tswap32(target_schp->sched_priority); 2243 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 2244 } 2245 break; 2246 case TARGET_NR_sched_getscheduler: 2247 ret = get_errno(sched_getscheduler(arg1)); 2248 break; 2249 case TARGET_NR_sched_yield: 2250 ret = get_errno(sched_yield()); 2251 break; 2252 case TARGET_NR_sched_get_priority_max: 2253 ret = get_errno(sched_get_priority_max(arg1)); 2254 break; 2255 case TARGET_NR_sched_get_priority_min: 2256 ret = get_errno(sched_get_priority_min(arg1)); 2257 break; 2258 case TARGET_NR_sched_rr_get_interval: 2259 { 2260 struct target_timespec *target_ts = (void *)arg2; 2261 struct timespec ts; 2262 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 2263 if (!is_error(ret)) { 2264 target_ts->tv_sec = tswapl(ts.tv_sec); 2265 target_ts->tv_nsec = tswapl(ts.tv_nsec); 2266 } 2267 } 2268 break; 2269 case TARGET_NR_nanosleep: 2270 { 2271 struct target_timespec *target_req = (void *)arg1; 2272 struct target_timespec *target_rem = (void *)arg2; 2273 struct timespec req, rem; 2274 req.tv_sec = tswapl(target_req->tv_sec); 2275 req.tv_nsec = tswapl(target_req->tv_nsec); 2276 ret = get_errno(nanosleep(&req, &rem)); 2277 if (target_rem) { 2278 target_rem->tv_sec = tswapl(rem.tv_sec); 2279 target_rem->tv_nsec = tswapl(rem.tv_nsec); 2280 } 2281 } 2282 break; 2283 case TARGET_NR_setresuid: 2284 ret = get_errno(setresuid(low2highuid(arg1), 2285 low2highuid(arg2), 2286 low2highuid(arg3))); 2287 break; 2288 case TARGET_NR_getresuid: 2289 { 2290 int ruid, euid, suid; 2291 ret = get_errno(getresuid(&ruid, &euid, &suid)); 2292 if (!is_error(ret)) { 2293 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid)); 2294 *(uint16_t *)arg2 = tswap16(high2lowuid(euid)); 2295 *(uint16_t *)arg3 = tswap16(high2lowuid(suid)); 2296 } 2297 } 2298 break; 2299 case TARGET_NR_setresgid: 2300 ret = get_errno(setresgid(low2highgid(arg1), 2301 low2highgid(arg2), 2302 low2highgid(arg3))); 2303 break; 2304 case TARGET_NR_getresgid: 2305 { 2306 int rgid, egid, sgid; 2307 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 2308 if (!is_error(ret)) { 2309 *(uint16_t *)arg1 = high2lowgid(tswap16(rgid)); 2310 *(uint16_t *)arg2 = high2lowgid(tswap16(egid)); 2311 *(uint16_t *)arg3 = high2lowgid(tswap16(sgid)); 2312 } 2313 } 2314 break; 2315 case TARGET_NR_query_module: 2316 goto unimplemented; 2317 case TARGET_NR_nfsservctl: 2318 goto unimplemented; 2319 case TARGET_NR_prctl: 2320 goto unimplemented; 2321 case TARGET_NR_pread: 2322 page_unprotect_range((void *)arg2, arg3); 2323 ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4)); 2324 break; 2325 case TARGET_NR_pwrite: 2326 ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4)); 2327 break; 2328 case TARGET_NR_chown: 2329 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 2330 break; 2331 case TARGET_NR_getcwd: 2332 ret = get_errno(sys_getcwd1((char *)arg1, arg2)); 2333 break; 2334 case TARGET_NR_capget: 2335 goto unimplemented; 2336 case TARGET_NR_capset: 2337 goto unimplemented; 2338 case TARGET_NR_sigaltstack: 2339 goto unimplemented; 2340 case TARGET_NR_sendfile: 2341 goto unimplemented; 2342 case TARGET_NR_getpmsg: 2343 goto unimplemented; 2344 case TARGET_NR_putpmsg: 2345 goto unimplemented; 2346 case TARGET_NR_vfork: 2347 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 2348 break; 2349 case TARGET_NR_ugetrlimit: 2350 { 2351 struct rlimit rlim; 2352 ret = get_errno(getrlimit(arg1, &rlim)); 2353 if (!is_error(ret)) { 2354 struct target_rlimit *target_rlim = (void *)arg2; 2355 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 2356 target_rlim->rlim_max = tswapl(rlim.rlim_max); 2357 } 2358 break; 2359 } 2360 case TARGET_NR_truncate64: 2361 goto unimplemented; 2362 case TARGET_NR_ftruncate64: 2363 goto unimplemented; 2364 case TARGET_NR_stat64: 2365 ret = get_errno(stat(path((const char *)arg1), &st)); 2366 goto do_stat64; 2367 case TARGET_NR_lstat64: 2368 ret = get_errno(lstat(path((const char *)arg1), &st)); 2369 goto do_stat64; 2370 case TARGET_NR_fstat64: 2371 { 2372 ret = get_errno(fstat(arg1, &st)); 2373 do_stat64: 2374 if (!is_error(ret)) { 2375 struct target_stat64 *target_st = (void *)arg2; 2376 memset(target_st, 0, sizeof(struct target_stat64)); 2377 target_st->st_dev = tswap16(st.st_dev); 2378 target_st->st_ino = tswap64(st.st_ino); 2379 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 2380 target_st->__st_ino = tswapl(st.st_ino); 2381 #endif 2382 target_st->st_mode = tswap32(st.st_mode); 2383 target_st->st_nlink = tswap32(st.st_nlink); 2384 target_st->st_uid = tswapl(st.st_uid); 2385 target_st->st_gid = tswapl(st.st_gid); 2386 target_st->st_rdev = tswap16(st.st_rdev); 2387 /* XXX: better use of kernel struct */ 2388 target_st->st_size = tswap64(st.st_size); 2389 target_st->st_blksize = tswapl(st.st_blksize); 2390 target_st->st_blocks = tswapl(st.st_blocks); 2391 target_st->target_st_atime = tswapl(st.st_atime); 2392 target_st->target_st_mtime = tswapl(st.st_mtime); 2393 target_st->target_st_ctime = tswapl(st.st_ctime); 2394 } 2395 } 2396 break; 2397 2398 case TARGET_NR_lchown32: 2399 ret = get_errno(lchown((const char *)arg1, arg2, arg3)); 2400 break; 2401 case TARGET_NR_getuid32: 2402 ret = get_errno(getuid()); 2403 break; 2404 case TARGET_NR_getgid32: 2405 ret = get_errno(getgid()); 2406 break; 2407 case TARGET_NR_geteuid32: 2408 ret = get_errno(geteuid()); 2409 break; 2410 case TARGET_NR_getegid32: 2411 ret = get_errno(getegid()); 2412 break; 2413 case TARGET_NR_setreuid32: 2414 ret = get_errno(setreuid(arg1, arg2)); 2415 break; 2416 case TARGET_NR_setregid32: 2417 ret = get_errno(setregid(arg1, arg2)); 2418 break; 2419 case TARGET_NR_getgroups32: 2420 goto unimplemented; 2421 case TARGET_NR_setgroups32: 2422 goto unimplemented; 2423 case TARGET_NR_fchown32: 2424 ret = get_errno(fchown(arg1, arg2, arg3)); 2425 break; 2426 case TARGET_NR_setresuid32: 2427 ret = get_errno(setresuid(arg1, arg2, arg3)); 2428 break; 2429 case TARGET_NR_getresuid32: 2430 { 2431 int ruid, euid, suid; 2432 ret = get_errno(getresuid(&ruid, &euid, &suid)); 2433 if (!is_error(ret)) { 2434 *(uint32_t *)arg1 = tswap32(ruid); 2435 *(uint32_t *)arg2 = tswap32(euid); 2436 *(uint32_t *)arg3 = tswap32(suid); 2437 } 2438 } 2439 break; 2440 case TARGET_NR_setresgid32: 2441 ret = get_errno(setresgid(arg1, arg2, arg3)); 2442 break; 2443 case TARGET_NR_getresgid32: 2444 { 2445 int rgid, egid, sgid; 2446 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 2447 if (!is_error(ret)) { 2448 *(uint32_t *)arg1 = tswap32(rgid); 2449 *(uint32_t *)arg2 = tswap32(egid); 2450 *(uint32_t *)arg3 = tswap32(sgid); 2451 } 2452 } 2453 break; 2454 case TARGET_NR_chown32: 2455 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 2456 break; 2457 case TARGET_NR_setuid32: 2458 ret = get_errno(setuid(arg1)); 2459 break; 2460 case TARGET_NR_setgid32: 2461 ret = get_errno(setgid(arg1)); 2462 break; 2463 case TARGET_NR_setfsuid32: 2464 ret = get_errno(setfsuid(arg1)); 2465 break; 2466 case TARGET_NR_setfsgid32: 2467 ret = get_errno(setfsgid(arg1)); 2468 break; 2469 case TARGET_NR_pivot_root: 2470 goto unimplemented; 2471 case TARGET_NR_mincore: 2472 goto unimplemented; 2473 case TARGET_NR_madvise: 2474 goto unimplemented; 2475 #if TARGET_LONG_BITS == 32 2476 case TARGET_NR_fcntl64: 2477 { 2478 struct flock64 fl; 2479 struct target_flock64 *target_fl = (void *)arg3; 2480 2481 switch(arg2) { 2482 case F_GETLK64: 2483 ret = get_errno(fcntl(arg1, arg2, &fl)); 2484 if (ret == 0) { 2485 target_fl->l_type = tswap16(fl.l_type); 2486 target_fl->l_whence = tswap16(fl.l_whence); 2487 target_fl->l_start = tswap64(fl.l_start); 2488 target_fl->l_len = tswap64(fl.l_len); 2489 target_fl->l_pid = tswapl(fl.l_pid); 2490 } 2491 break; 2492 2493 case F_SETLK64: 2494 case F_SETLKW64: 2495 fl.l_type = tswap16(target_fl->l_type); 2496 fl.l_whence = tswap16(target_fl->l_whence); 2497 fl.l_start = tswap64(target_fl->l_start); 2498 fl.l_len = tswap64(target_fl->l_len); 2499 fl.l_pid = tswapl(target_fl->l_pid); 2500 ret = get_errno(fcntl(arg1, arg2, &fl)); 2501 break; 2502 default: 2503 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2504 break; 2505 } 2506 break; 2507 } 2508 #endif 2509 case TARGET_NR_security: 2510 goto unimplemented; 2511 case TARGET_NR_gettid: 2512 ret = get_errno(gettid()); 2513 break; 2514 case TARGET_NR_readahead: 2515 goto unimplemented; 2516 case TARGET_NR_setxattr: 2517 case TARGET_NR_lsetxattr: 2518 case TARGET_NR_fsetxattr: 2519 case TARGET_NR_getxattr: 2520 case TARGET_NR_lgetxattr: 2521 case TARGET_NR_fgetxattr: 2522 case TARGET_NR_listxattr: 2523 case TARGET_NR_llistxattr: 2524 case TARGET_NR_flistxattr: 2525 case TARGET_NR_removexattr: 2526 case TARGET_NR_lremovexattr: 2527 case TARGET_NR_fremovexattr: 2528 goto unimplemented_nowarn; 2529 case TARGET_NR_set_thread_area: 2530 case TARGET_NR_get_thread_area: 2531 goto unimplemented_nowarn; 2532 default: 2533 unimplemented: 2534 gemu_log("qemu: Unsupported syscall: %d\n", num); 2535 unimplemented_nowarn: 2536 ret = -ENOSYS; 2537 break; 2538 } 2539 fail: 2540 return ret; 2541 } 2542 2543