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/shm.h> 45 #include <sys/statfs.h> 46 #include <utime.h> 47 #include <sys/sysinfo.h> 48 //#include <sys/user.h> 49 #include <netinet/ip.h> 50 #include <netinet/tcp.h> 51 52 #define termios host_termios 53 #define winsize host_winsize 54 #define termio host_termio 55 #define sgttyb host_sgttyb /* same as target */ 56 #define tchars host_tchars /* same as target */ 57 #define ltchars host_ltchars /* same as target */ 58 59 #include <linux/termios.h> 60 #include <linux/unistd.h> 61 #include <linux/utsname.h> 62 #include <linux/cdrom.h> 63 #include <linux/hdreg.h> 64 #include <linux/soundcard.h> 65 #include <linux/dirent.h> 66 #include <linux/kd.h> 67 68 #include "qemu.h" 69 70 //#define DEBUG 71 72 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \ 73 || defined(TARGET_M68K) 74 /* 16 bit uid wrappers emulation */ 75 #define USE_UID16 76 #endif 77 78 //#include <linux/msdos_fs.h> 79 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 80 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 81 82 83 #undef _syscall0 84 #undef _syscall1 85 #undef _syscall2 86 #undef _syscall3 87 #undef _syscall4 88 #undef _syscall5 89 #undef _syscall6 90 91 #define _syscall0(type,name) \ 92 type name (void) \ 93 { \ 94 return syscall(__NR_##name); \ 95 } 96 97 #define _syscall1(type,name,type1,arg1) \ 98 type name (type1 arg1) \ 99 { \ 100 return syscall(__NR_##name, arg1); \ 101 } 102 103 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 104 type name (type1 arg1,type2 arg2) \ 105 { \ 106 return syscall(__NR_##name, arg1, arg2); \ 107 } 108 109 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 110 type name (type1 arg1,type2 arg2,type3 arg3) \ 111 { \ 112 return syscall(__NR_##name, arg1, arg2, arg3); \ 113 } 114 115 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 116 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 117 { \ 118 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 119 } 120 121 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 122 type5,arg5) \ 123 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 124 { \ 125 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 126 } 127 128 129 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 130 type5,arg5,type6,arg6) \ 131 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ 132 { \ 133 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 134 } 135 136 137 #define __NR_sys_uname __NR_uname 138 #define __NR_sys_getcwd1 __NR_getcwd 139 #define __NR_sys_getdents __NR_getdents 140 #define __NR_sys_getdents64 __NR_getdents64 141 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 142 143 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 144 #define __NR__llseek __NR_lseek 145 #endif 146 147 #ifdef __NR_gettid 148 _syscall0(int, gettid) 149 #else 150 static int gettid(void) { 151 return -ENOSYS; 152 } 153 #endif 154 _syscall1(int,sys_uname,struct new_utsname *,buf) 155 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 156 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 157 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 158 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 159 loff_t *, res, uint, wh); 160 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 161 #ifdef __NR_exit_group 162 _syscall1(int,exit_group,int,error_code) 163 #endif 164 165 extern int personality(int); 166 extern int flock(int, int); 167 extern int setfsuid(int); 168 extern int setfsgid(int); 169 extern int setresuid(uid_t, uid_t, uid_t); 170 extern int getresuid(uid_t *, uid_t *, uid_t *); 171 extern int setresgid(gid_t, gid_t, gid_t); 172 extern int getresgid(gid_t *, gid_t *, gid_t *); 173 extern int setgroups(int, gid_t *); 174 175 static inline long get_errno(long ret) 176 { 177 if (ret == -1) 178 return -errno; 179 else 180 return ret; 181 } 182 183 static inline int is_error(long ret) 184 { 185 return (unsigned long)ret >= (unsigned long)(-4096); 186 } 187 188 static target_ulong target_brk; 189 static target_ulong target_original_brk; 190 191 void target_set_brk(target_ulong new_brk) 192 { 193 target_original_brk = target_brk = new_brk; 194 } 195 196 long do_brk(target_ulong new_brk) 197 { 198 target_ulong brk_page; 199 long mapped_addr; 200 int new_alloc_size; 201 202 if (!new_brk) 203 return target_brk; 204 if (new_brk < target_original_brk) 205 return -ENOMEM; 206 207 brk_page = HOST_PAGE_ALIGN(target_brk); 208 209 /* If the new brk is less than this, set it and we're done... */ 210 if (new_brk < brk_page) { 211 target_brk = new_brk; 212 return target_brk; 213 } 214 215 /* We need to allocate more memory after the brk... */ 216 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 217 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 218 PROT_READ|PROT_WRITE, 219 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 220 if (is_error(mapped_addr)) { 221 return mapped_addr; 222 } else { 223 target_brk = new_brk; 224 return target_brk; 225 } 226 } 227 228 static inline fd_set *target_to_host_fds(fd_set *fds, 229 target_long *target_fds, int n) 230 { 231 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 232 return (fd_set *)target_fds; 233 #else 234 int i, b; 235 if (target_fds) { 236 FD_ZERO(fds); 237 for(i = 0;i < n; i++) { 238 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 239 (i & (TARGET_LONG_BITS - 1))) & 1; 240 if (b) 241 FD_SET(i, fds); 242 } 243 return fds; 244 } else { 245 return NULL; 246 } 247 #endif 248 } 249 250 static inline void host_to_target_fds(target_long *target_fds, 251 fd_set *fds, int n) 252 { 253 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 254 /* nothing to do */ 255 #else 256 int i, nw, j, k; 257 target_long v; 258 259 if (target_fds) { 260 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS; 261 k = 0; 262 for(i = 0;i < nw; i++) { 263 v = 0; 264 for(j = 0; j < TARGET_LONG_BITS; j++) { 265 v |= ((FD_ISSET(k, fds) != 0) << j); 266 k++; 267 } 268 target_fds[i] = tswapl(v); 269 } 270 } 271 #endif 272 } 273 274 #if defined(__alpha__) 275 #define HOST_HZ 1024 276 #else 277 #define HOST_HZ 100 278 #endif 279 280 static inline long host_to_target_clock_t(long ticks) 281 { 282 #if HOST_HZ == TARGET_HZ 283 return ticks; 284 #else 285 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 286 #endif 287 } 288 289 static inline void host_to_target_rusage(target_ulong target_addr, 290 const struct rusage *rusage) 291 { 292 struct target_rusage *target_rusage; 293 294 lock_user_struct(target_rusage, target_addr, 0); 295 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 296 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 297 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 298 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 299 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 300 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 301 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 302 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 303 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 304 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 305 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 306 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 307 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 308 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 309 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 310 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 311 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 312 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 313 unlock_user_struct(target_rusage, target_addr, 1); 314 } 315 316 static inline void target_to_host_timeval(struct timeval *tv, 317 target_ulong target_addr) 318 { 319 struct target_timeval *target_tv; 320 321 lock_user_struct(target_tv, target_addr, 1); 322 tv->tv_sec = tswapl(target_tv->tv_sec); 323 tv->tv_usec = tswapl(target_tv->tv_usec); 324 unlock_user_struct(target_tv, target_addr, 0); 325 } 326 327 static inline void host_to_target_timeval(target_ulong target_addr, 328 const struct timeval *tv) 329 { 330 struct target_timeval *target_tv; 331 332 lock_user_struct(target_tv, target_addr, 0); 333 target_tv->tv_sec = tswapl(tv->tv_sec); 334 target_tv->tv_usec = tswapl(tv->tv_usec); 335 unlock_user_struct(target_tv, target_addr, 1); 336 } 337 338 339 static long do_select(long n, 340 target_ulong rfd_p, target_ulong wfd_p, 341 target_ulong efd_p, target_ulong target_tv) 342 { 343 fd_set rfds, wfds, efds; 344 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 345 target_long *target_rfds, *target_wfds, *target_efds; 346 struct timeval tv, *tv_ptr; 347 long ret; 348 int ok; 349 350 if (rfd_p) { 351 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1); 352 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 353 } else { 354 target_rfds = NULL; 355 rfds_ptr = NULL; 356 } 357 if (wfd_p) { 358 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1); 359 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 360 } else { 361 target_wfds = NULL; 362 wfds_ptr = NULL; 363 } 364 if (efd_p) { 365 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1); 366 efds_ptr = target_to_host_fds(&efds, target_efds, n); 367 } else { 368 target_efds = NULL; 369 efds_ptr = NULL; 370 } 371 372 if (target_tv) { 373 target_to_host_timeval(&tv, target_tv); 374 tv_ptr = &tv; 375 } else { 376 tv_ptr = NULL; 377 } 378 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 379 ok = !is_error(ret); 380 381 if (ok) { 382 host_to_target_fds(target_rfds, rfds_ptr, n); 383 host_to_target_fds(target_wfds, wfds_ptr, n); 384 host_to_target_fds(target_efds, efds_ptr, n); 385 386 if (target_tv) { 387 host_to_target_timeval(target_tv, &tv); 388 } 389 } 390 if (target_rfds) 391 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0); 392 if (target_wfds) 393 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0); 394 if (target_efds) 395 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0); 396 397 return ret; 398 } 399 400 static inline void target_to_host_sockaddr(struct sockaddr *addr, 401 target_ulong target_addr, 402 socklen_t len) 403 { 404 struct target_sockaddr *target_saddr; 405 406 target_saddr = lock_user(target_addr, len, 1); 407 memcpy(addr, target_saddr, len); 408 addr->sa_family = tswap16(target_saddr->sa_family); 409 unlock_user(target_saddr, target_addr, 0); 410 } 411 412 static inline void host_to_target_sockaddr(target_ulong target_addr, 413 struct sockaddr *addr, 414 socklen_t len) 415 { 416 struct target_sockaddr *target_saddr; 417 418 target_saddr = lock_user(target_addr, len, 0); 419 memcpy(target_saddr, addr, len); 420 target_saddr->sa_family = tswap16(addr->sa_family); 421 unlock_user(target_saddr, target_addr, len); 422 } 423 424 /* ??? Should this also swap msgh->name? */ 425 static inline void target_to_host_cmsg(struct msghdr *msgh, 426 struct target_msghdr *target_msgh) 427 { 428 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 429 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 430 socklen_t space = 0; 431 432 while (cmsg && target_cmsg) { 433 void *data = CMSG_DATA(cmsg); 434 void *target_data = TARGET_CMSG_DATA(target_cmsg); 435 436 int len = tswapl(target_cmsg->cmsg_len) 437 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 438 439 space += CMSG_SPACE(len); 440 if (space > msgh->msg_controllen) { 441 space -= CMSG_SPACE(len); 442 gemu_log("Host cmsg overflow\n"); 443 break; 444 } 445 446 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 447 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 448 cmsg->cmsg_len = CMSG_LEN(len); 449 450 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 451 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 452 memcpy(data, target_data, len); 453 } else { 454 int *fd = (int *)data; 455 int *target_fd = (int *)target_data; 456 int i, numfds = len / sizeof(int); 457 458 for (i = 0; i < numfds; i++) 459 fd[i] = tswap32(target_fd[i]); 460 } 461 462 cmsg = CMSG_NXTHDR(msgh, cmsg); 463 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 464 } 465 466 msgh->msg_controllen = space; 467 } 468 469 /* ??? Should this also swap msgh->name? */ 470 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 471 struct msghdr *msgh) 472 { 473 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 474 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 475 socklen_t space = 0; 476 477 while (cmsg && target_cmsg) { 478 void *data = CMSG_DATA(cmsg); 479 void *target_data = TARGET_CMSG_DATA(target_cmsg); 480 481 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 482 483 space += TARGET_CMSG_SPACE(len); 484 if (space > tswapl(target_msgh->msg_controllen)) { 485 space -= TARGET_CMSG_SPACE(len); 486 gemu_log("Target cmsg overflow\n"); 487 break; 488 } 489 490 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 491 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 492 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 493 494 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 495 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 496 memcpy(target_data, data, len); 497 } else { 498 int *fd = (int *)data; 499 int *target_fd = (int *)target_data; 500 int i, numfds = len / sizeof(int); 501 502 for (i = 0; i < numfds; i++) 503 target_fd[i] = tswap32(fd[i]); 504 } 505 506 cmsg = CMSG_NXTHDR(msgh, cmsg); 507 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 508 } 509 510 msgh->msg_controllen = tswapl(space); 511 } 512 513 static long do_setsockopt(int sockfd, int level, int optname, 514 target_ulong optval, socklen_t optlen) 515 { 516 int val, ret; 517 518 switch(level) { 519 case SOL_TCP: 520 /* TCP options all take an 'int' value. */ 521 if (optlen < sizeof(uint32_t)) 522 return -EINVAL; 523 524 val = tget32(optval); 525 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 526 break; 527 case SOL_IP: 528 switch(optname) { 529 case IP_TOS: 530 case IP_TTL: 531 case IP_HDRINCL: 532 case IP_ROUTER_ALERT: 533 case IP_RECVOPTS: 534 case IP_RETOPTS: 535 case IP_PKTINFO: 536 case IP_MTU_DISCOVER: 537 case IP_RECVERR: 538 case IP_RECVTOS: 539 #ifdef IP_FREEBIND 540 case IP_FREEBIND: 541 #endif 542 case IP_MULTICAST_TTL: 543 case IP_MULTICAST_LOOP: 544 val = 0; 545 if (optlen >= sizeof(uint32_t)) { 546 val = tget32(optval); 547 } else if (optlen >= 1) { 548 val = tget8(optval); 549 } 550 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 551 break; 552 default: 553 goto unimplemented; 554 } 555 break; 556 case TARGET_SOL_SOCKET: 557 switch (optname) { 558 /* Options with 'int' argument. */ 559 case TARGET_SO_DEBUG: 560 optname = SO_DEBUG; 561 break; 562 case TARGET_SO_REUSEADDR: 563 optname = SO_REUSEADDR; 564 break; 565 case TARGET_SO_TYPE: 566 optname = SO_TYPE; 567 break; 568 case TARGET_SO_ERROR: 569 optname = SO_ERROR; 570 break; 571 case TARGET_SO_DONTROUTE: 572 optname = SO_DONTROUTE; 573 break; 574 case TARGET_SO_BROADCAST: 575 optname = SO_BROADCAST; 576 break; 577 case TARGET_SO_SNDBUF: 578 optname = SO_SNDBUF; 579 break; 580 case TARGET_SO_RCVBUF: 581 optname = SO_RCVBUF; 582 break; 583 case TARGET_SO_KEEPALIVE: 584 optname = SO_KEEPALIVE; 585 break; 586 case TARGET_SO_OOBINLINE: 587 optname = SO_OOBINLINE; 588 break; 589 case TARGET_SO_NO_CHECK: 590 optname = SO_NO_CHECK; 591 break; 592 case TARGET_SO_PRIORITY: 593 optname = SO_PRIORITY; 594 break; 595 #ifdef SO_BSDCOMPAT 596 case TARGET_SO_BSDCOMPAT: 597 optname = SO_BSDCOMPAT; 598 break; 599 #endif 600 case TARGET_SO_PASSCRED: 601 optname = SO_PASSCRED; 602 break; 603 case TARGET_SO_TIMESTAMP: 604 optname = SO_TIMESTAMP; 605 break; 606 case TARGET_SO_RCVLOWAT: 607 optname = SO_RCVLOWAT; 608 break; 609 case TARGET_SO_RCVTIMEO: 610 optname = SO_RCVTIMEO; 611 break; 612 case TARGET_SO_SNDTIMEO: 613 optname = SO_SNDTIMEO; 614 break; 615 break; 616 default: 617 goto unimplemented; 618 } 619 if (optlen < sizeof(uint32_t)) 620 return -EINVAL; 621 622 val = tget32(optval); 623 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 624 break; 625 default: 626 unimplemented: 627 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 628 ret = -ENOSYS; 629 } 630 return ret; 631 } 632 633 static long do_getsockopt(int sockfd, int level, int optname, 634 target_ulong optval, target_ulong optlen) 635 { 636 int len, lv, val, ret; 637 638 switch(level) { 639 case TARGET_SOL_SOCKET: 640 level = SOL_SOCKET; 641 switch (optname) { 642 case TARGET_SO_LINGER: 643 case TARGET_SO_RCVTIMEO: 644 case TARGET_SO_SNDTIMEO: 645 case TARGET_SO_PEERCRED: 646 case TARGET_SO_PEERNAME: 647 /* These don't just return a single integer */ 648 goto unimplemented; 649 default: 650 goto int_case; 651 } 652 break; 653 case SOL_TCP: 654 /* TCP options all take an 'int' value. */ 655 int_case: 656 len = tget32(optlen); 657 if (len < 0) 658 return -EINVAL; 659 lv = sizeof(int); 660 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 661 if (ret < 0) 662 return ret; 663 val = tswap32(val); 664 if (len > lv) 665 len = lv; 666 if (len == 4) 667 tput32(optval, val); 668 else 669 tput8(optval, val); 670 tput32(optlen, len); 671 break; 672 case SOL_IP: 673 switch(optname) { 674 case IP_TOS: 675 case IP_TTL: 676 case IP_HDRINCL: 677 case IP_ROUTER_ALERT: 678 case IP_RECVOPTS: 679 case IP_RETOPTS: 680 case IP_PKTINFO: 681 case IP_MTU_DISCOVER: 682 case IP_RECVERR: 683 case IP_RECVTOS: 684 #ifdef IP_FREEBIND 685 case IP_FREEBIND: 686 #endif 687 case IP_MULTICAST_TTL: 688 case IP_MULTICAST_LOOP: 689 len = tget32(optlen); 690 if (len < 0) 691 return -EINVAL; 692 lv = sizeof(int); 693 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 694 if (ret < 0) 695 return ret; 696 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 697 len = 1; 698 tput32(optlen, len); 699 tput8(optval, val); 700 } else { 701 if (len > sizeof(int)) 702 len = sizeof(int); 703 tput32(optlen, len); 704 tput32(optval, val); 705 } 706 break; 707 default: 708 goto unimplemented; 709 } 710 break; 711 default: 712 unimplemented: 713 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 714 level, optname); 715 ret = -ENOSYS; 716 break; 717 } 718 return ret; 719 } 720 721 static void lock_iovec(struct iovec *vec, target_ulong target_addr, 722 int count, int copy) 723 { 724 struct target_iovec *target_vec; 725 target_ulong base; 726 int i; 727 728 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 729 for(i = 0;i < count; i++) { 730 base = tswapl(target_vec[i].iov_base); 731 vec[i].iov_len = tswapl(target_vec[i].iov_len); 732 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 733 } 734 unlock_user (target_vec, target_addr, 0); 735 } 736 737 static void unlock_iovec(struct iovec *vec, target_ulong target_addr, 738 int count, int copy) 739 { 740 struct target_iovec *target_vec; 741 target_ulong base; 742 int i; 743 744 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 745 for(i = 0;i < count; i++) { 746 base = tswapl(target_vec[i].iov_base); 747 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 748 } 749 unlock_user (target_vec, target_addr, 0); 750 } 751 752 static long do_socket(int domain, int type, int protocol) 753 { 754 #if defined(TARGET_MIPS) 755 switch(type) { 756 case TARGET_SOCK_DGRAM: 757 type = SOCK_DGRAM; 758 break; 759 case TARGET_SOCK_STREAM: 760 type = SOCK_STREAM; 761 break; 762 case TARGET_SOCK_RAW: 763 type = SOCK_RAW; 764 break; 765 case TARGET_SOCK_RDM: 766 type = SOCK_RDM; 767 break; 768 case TARGET_SOCK_SEQPACKET: 769 type = SOCK_SEQPACKET; 770 break; 771 case TARGET_SOCK_PACKET: 772 type = SOCK_PACKET; 773 break; 774 } 775 #endif 776 return get_errno(socket(domain, type, protocol)); 777 } 778 779 static long do_bind(int sockfd, target_ulong target_addr, 780 socklen_t addrlen) 781 { 782 void *addr = alloca(addrlen); 783 784 target_to_host_sockaddr(addr, target_addr, addrlen); 785 return get_errno(bind(sockfd, addr, addrlen)); 786 } 787 788 static long do_connect(int sockfd, target_ulong target_addr, 789 socklen_t addrlen) 790 { 791 void *addr = alloca(addrlen); 792 793 target_to_host_sockaddr(addr, target_addr, addrlen); 794 return get_errno(connect(sockfd, addr, addrlen)); 795 } 796 797 static long do_sendrecvmsg(int fd, target_ulong target_msg, 798 int flags, int send) 799 { 800 long ret; 801 struct target_msghdr *msgp; 802 struct msghdr msg; 803 int count; 804 struct iovec *vec; 805 target_ulong target_vec; 806 807 lock_user_struct(msgp, target_msg, 1); 808 if (msgp->msg_name) { 809 msg.msg_namelen = tswap32(msgp->msg_namelen); 810 msg.msg_name = alloca(msg.msg_namelen); 811 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 812 msg.msg_namelen); 813 } else { 814 msg.msg_name = NULL; 815 msg.msg_namelen = 0; 816 } 817 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 818 msg.msg_control = alloca(msg.msg_controllen); 819 msg.msg_flags = tswap32(msgp->msg_flags); 820 821 count = tswapl(msgp->msg_iovlen); 822 vec = alloca(count * sizeof(struct iovec)); 823 target_vec = tswapl(msgp->msg_iov); 824 lock_iovec(vec, target_vec, count, send); 825 msg.msg_iovlen = count; 826 msg.msg_iov = vec; 827 828 if (send) { 829 target_to_host_cmsg(&msg, msgp); 830 ret = get_errno(sendmsg(fd, &msg, flags)); 831 } else { 832 ret = get_errno(recvmsg(fd, &msg, flags)); 833 if (!is_error(ret)) 834 host_to_target_cmsg(msgp, &msg); 835 } 836 unlock_iovec(vec, target_vec, count, !send); 837 return ret; 838 } 839 840 static long do_accept(int fd, target_ulong target_addr, 841 target_ulong target_addrlen) 842 { 843 socklen_t addrlen = tget32(target_addrlen); 844 void *addr = alloca(addrlen); 845 long ret; 846 847 ret = get_errno(accept(fd, addr, &addrlen)); 848 if (!is_error(ret)) { 849 host_to_target_sockaddr(target_addr, addr, addrlen); 850 tput32(target_addrlen, addrlen); 851 } 852 return ret; 853 } 854 855 static long do_getpeername(int fd, target_ulong target_addr, 856 target_ulong target_addrlen) 857 { 858 socklen_t addrlen = tget32(target_addrlen); 859 void *addr = alloca(target_addrlen); 860 long ret; 861 862 ret = get_errno(getpeername(fd, addr, &addrlen)); 863 if (!is_error(ret)) { 864 host_to_target_sockaddr(target_addr, addr, addrlen); 865 tput32(target_addrlen, addrlen); 866 } 867 return ret; 868 } 869 870 static long do_getsockname(int fd, target_ulong target_addr, 871 target_ulong target_addrlen) 872 { 873 socklen_t addrlen = tget32(target_addrlen); 874 void *addr = alloca(target_addrlen); 875 long ret; 876 877 ret = get_errno(getsockname(fd, addr, &addrlen)); 878 if (!is_error(ret)) { 879 host_to_target_sockaddr(target_addr, addr, addrlen); 880 tput32(target_addrlen, addrlen); 881 } 882 return ret; 883 } 884 885 static long do_socketpair(int domain, int type, int protocol, 886 target_ulong target_tab) 887 { 888 int tab[2]; 889 long ret; 890 891 ret = get_errno(socketpair(domain, type, protocol, tab)); 892 if (!is_error(ret)) { 893 tput32(target_tab, tab[0]); 894 tput32(target_tab + 4, tab[1]); 895 } 896 return ret; 897 } 898 899 static long do_sendto(int fd, target_ulong msg, size_t len, int flags, 900 target_ulong target_addr, socklen_t addrlen) 901 { 902 void *addr; 903 void *host_msg; 904 long ret; 905 906 host_msg = lock_user(msg, len, 1); 907 if (target_addr) { 908 addr = alloca(addrlen); 909 target_to_host_sockaddr(addr, target_addr, addrlen); 910 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 911 } else { 912 ret = get_errno(send(fd, host_msg, len, flags)); 913 } 914 unlock_user(host_msg, msg, 0); 915 return ret; 916 } 917 918 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags, 919 target_ulong target_addr, target_ulong target_addrlen) 920 { 921 socklen_t addrlen; 922 void *addr; 923 void *host_msg; 924 long ret; 925 926 host_msg = lock_user(msg, len, 0); 927 if (target_addr) { 928 addrlen = tget32(target_addrlen); 929 addr = alloca(addrlen); 930 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 931 } else { 932 addr = NULL; /* To keep compiler quiet. */ 933 ret = get_errno(recv(fd, host_msg, len, flags)); 934 } 935 if (!is_error(ret)) { 936 if (target_addr) { 937 host_to_target_sockaddr(target_addr, addr, addrlen); 938 tput32(target_addrlen, addrlen); 939 } 940 unlock_user(host_msg, msg, len); 941 } else { 942 unlock_user(host_msg, msg, 0); 943 } 944 return ret; 945 } 946 947 static long do_socketcall(int num, target_ulong vptr) 948 { 949 long ret; 950 const int n = sizeof(target_ulong); 951 952 switch(num) { 953 case SOCKOP_socket: 954 { 955 int domain = tgetl(vptr); 956 int type = tgetl(vptr + n); 957 int protocol = tgetl(vptr + 2 * n); 958 ret = do_socket(domain, type, protocol); 959 } 960 break; 961 case SOCKOP_bind: 962 { 963 int sockfd = tgetl(vptr); 964 target_ulong target_addr = tgetl(vptr + n); 965 socklen_t addrlen = tgetl(vptr + 2 * n); 966 ret = do_bind(sockfd, target_addr, addrlen); 967 } 968 break; 969 case SOCKOP_connect: 970 { 971 int sockfd = tgetl(vptr); 972 target_ulong target_addr = tgetl(vptr + n); 973 socklen_t addrlen = tgetl(vptr + 2 * n); 974 ret = do_connect(sockfd, target_addr, addrlen); 975 } 976 break; 977 case SOCKOP_listen: 978 { 979 int sockfd = tgetl(vptr); 980 int backlog = tgetl(vptr + n); 981 ret = get_errno(listen(sockfd, backlog)); 982 } 983 break; 984 case SOCKOP_accept: 985 { 986 int sockfd = tgetl(vptr); 987 target_ulong target_addr = tgetl(vptr + n); 988 target_ulong target_addrlen = tgetl(vptr + 2 * n); 989 ret = do_accept(sockfd, target_addr, target_addrlen); 990 } 991 break; 992 case SOCKOP_getsockname: 993 { 994 int sockfd = tgetl(vptr); 995 target_ulong target_addr = tgetl(vptr + n); 996 target_ulong target_addrlen = tgetl(vptr + 2 * n); 997 ret = do_getsockname(sockfd, target_addr, target_addrlen); 998 } 999 break; 1000 case SOCKOP_getpeername: 1001 { 1002 int sockfd = tgetl(vptr); 1003 target_ulong target_addr = tgetl(vptr + n); 1004 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1005 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1006 } 1007 break; 1008 case SOCKOP_socketpair: 1009 { 1010 int domain = tgetl(vptr); 1011 int type = tgetl(vptr + n); 1012 int protocol = tgetl(vptr + 2 * n); 1013 target_ulong tab = tgetl(vptr + 3 * n); 1014 ret = do_socketpair(domain, type, protocol, tab); 1015 } 1016 break; 1017 case SOCKOP_send: 1018 { 1019 int sockfd = tgetl(vptr); 1020 target_ulong msg = tgetl(vptr + n); 1021 size_t len = tgetl(vptr + 2 * n); 1022 int flags = tgetl(vptr + 3 * n); 1023 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1024 } 1025 break; 1026 case SOCKOP_recv: 1027 { 1028 int sockfd = tgetl(vptr); 1029 target_ulong msg = tgetl(vptr + n); 1030 size_t len = tgetl(vptr + 2 * n); 1031 int flags = tgetl(vptr + 3 * n); 1032 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1033 } 1034 break; 1035 case SOCKOP_sendto: 1036 { 1037 int sockfd = tgetl(vptr); 1038 target_ulong msg = tgetl(vptr + n); 1039 size_t len = tgetl(vptr + 2 * n); 1040 int flags = tgetl(vptr + 3 * n); 1041 target_ulong addr = tgetl(vptr + 4 * n); 1042 socklen_t addrlen = tgetl(vptr + 5 * n); 1043 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1044 } 1045 break; 1046 case SOCKOP_recvfrom: 1047 { 1048 int sockfd = tgetl(vptr); 1049 target_ulong msg = tgetl(vptr + n); 1050 size_t len = tgetl(vptr + 2 * n); 1051 int flags = tgetl(vptr + 3 * n); 1052 target_ulong addr = tgetl(vptr + 4 * n); 1053 target_ulong addrlen = tgetl(vptr + 5 * n); 1054 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1055 } 1056 break; 1057 case SOCKOP_shutdown: 1058 { 1059 int sockfd = tgetl(vptr); 1060 int how = tgetl(vptr + n); 1061 1062 ret = get_errno(shutdown(sockfd, how)); 1063 } 1064 break; 1065 case SOCKOP_sendmsg: 1066 case SOCKOP_recvmsg: 1067 { 1068 int fd; 1069 target_ulong target_msg; 1070 int flags; 1071 1072 fd = tgetl(vptr); 1073 target_msg = tgetl(vptr + n); 1074 flags = tgetl(vptr + 2 * n); 1075 1076 ret = do_sendrecvmsg(fd, target_msg, flags, 1077 (num == SOCKOP_sendmsg)); 1078 } 1079 break; 1080 case SOCKOP_setsockopt: 1081 { 1082 int sockfd = tgetl(vptr); 1083 int level = tgetl(vptr + n); 1084 int optname = tgetl(vptr + 2 * n); 1085 target_ulong optval = tgetl(vptr + 3 * n); 1086 socklen_t optlen = tgetl(vptr + 4 * n); 1087 1088 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1089 } 1090 break; 1091 case SOCKOP_getsockopt: 1092 { 1093 int sockfd = tgetl(vptr); 1094 int level = tgetl(vptr + n); 1095 int optname = tgetl(vptr + 2 * n); 1096 target_ulong optval = tgetl(vptr + 3 * n); 1097 target_ulong poptlen = tgetl(vptr + 4 * n); 1098 1099 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1100 } 1101 break; 1102 default: 1103 gemu_log("Unsupported socketcall: %d\n", num); 1104 ret = -ENOSYS; 1105 break; 1106 } 1107 return ret; 1108 } 1109 1110 #define N_SHM_REGIONS 32 1111 1112 static struct shm_region { 1113 uint32_t start; 1114 uint32_t size; 1115 } shm_regions[N_SHM_REGIONS]; 1116 1117 /* ??? This only works with linear mappings. */ 1118 static long do_ipc(long call, long first, long second, long third, 1119 long ptr, long fifth) 1120 { 1121 int version; 1122 long ret = 0; 1123 unsigned long raddr; 1124 struct shmid_ds shm_info; 1125 int i; 1126 1127 version = call >> 16; 1128 call &= 0xffff; 1129 1130 switch (call) { 1131 case IPCOP_shmat: 1132 /* SHM_* flags are the same on all linux platforms */ 1133 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1134 if (is_error(ret)) 1135 break; 1136 raddr = ret; 1137 /* find out the length of the shared memory segment */ 1138 1139 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1140 if (is_error(ret)) { 1141 /* can't get length, bail out */ 1142 shmdt((void *) raddr); 1143 break; 1144 } 1145 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1146 PAGE_VALID | PAGE_READ | 1147 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1148 for (i = 0; i < N_SHM_REGIONS; ++i) { 1149 if (shm_regions[i].start == 0) { 1150 shm_regions[i].start = raddr; 1151 shm_regions[i].size = shm_info.shm_segsz; 1152 break; 1153 } 1154 } 1155 if (put_user(raddr, (uint32_t *)third)) 1156 return -EFAULT; 1157 ret = 0; 1158 break; 1159 case IPCOP_shmdt: 1160 for (i = 0; i < N_SHM_REGIONS; ++i) { 1161 if (shm_regions[i].start == ptr) { 1162 shm_regions[i].start = 0; 1163 page_set_flags(ptr, shm_regions[i].size, 0); 1164 break; 1165 } 1166 } 1167 ret = get_errno(shmdt((void *) ptr)); 1168 break; 1169 1170 case IPCOP_shmget: 1171 /* IPC_* flag values are the same on all linux platforms */ 1172 ret = get_errno(shmget(first, second, third)); 1173 break; 1174 1175 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1176 case IPCOP_shmctl: 1177 switch(second) { 1178 case IPC_RMID: 1179 case SHM_LOCK: 1180 case SHM_UNLOCK: 1181 ret = get_errno(shmctl(first, second, NULL)); 1182 break; 1183 default: 1184 goto unimplemented; 1185 } 1186 break; 1187 default: 1188 unimplemented: 1189 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1190 ret = -ENOSYS; 1191 break; 1192 } 1193 return ret; 1194 } 1195 1196 /* kernel structure types definitions */ 1197 #define IFNAMSIZ 16 1198 1199 #define STRUCT(name, list...) STRUCT_ ## name, 1200 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1201 enum { 1202 #include "syscall_types.h" 1203 }; 1204 #undef STRUCT 1205 #undef STRUCT_SPECIAL 1206 1207 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1208 #define STRUCT_SPECIAL(name) 1209 #include "syscall_types.h" 1210 #undef STRUCT 1211 #undef STRUCT_SPECIAL 1212 1213 typedef struct IOCTLEntry { 1214 unsigned int target_cmd; 1215 unsigned int host_cmd; 1216 const char *name; 1217 int access; 1218 const argtype arg_type[5]; 1219 } IOCTLEntry; 1220 1221 #define IOC_R 0x0001 1222 #define IOC_W 0x0002 1223 #define IOC_RW (IOC_R | IOC_W) 1224 1225 #define MAX_STRUCT_SIZE 4096 1226 1227 IOCTLEntry ioctl_entries[] = { 1228 #define IOCTL(cmd, access, types...) \ 1229 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1230 #include "ioctls.h" 1231 { 0, 0, }, 1232 }; 1233 1234 /* ??? Implement proper locking for ioctls. */ 1235 static long do_ioctl(long fd, long cmd, long arg) 1236 { 1237 const IOCTLEntry *ie; 1238 const argtype *arg_type; 1239 long ret; 1240 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1241 int target_size; 1242 void *argptr; 1243 1244 ie = ioctl_entries; 1245 for(;;) { 1246 if (ie->target_cmd == 0) { 1247 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 1248 return -ENOSYS; 1249 } 1250 if (ie->target_cmd == cmd) 1251 break; 1252 ie++; 1253 } 1254 arg_type = ie->arg_type; 1255 #if defined(DEBUG) 1256 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 1257 #endif 1258 switch(arg_type[0]) { 1259 case TYPE_NULL: 1260 /* no argument */ 1261 ret = get_errno(ioctl(fd, ie->host_cmd)); 1262 break; 1263 case TYPE_PTRVOID: 1264 case TYPE_INT: 1265 /* int argment */ 1266 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1267 break; 1268 case TYPE_PTR: 1269 arg_type++; 1270 target_size = thunk_type_size(arg_type, 0); 1271 switch(ie->access) { 1272 case IOC_R: 1273 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1274 if (!is_error(ret)) { 1275 argptr = lock_user(arg, target_size, 0); 1276 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1277 unlock_user(argptr, arg, target_size); 1278 } 1279 break; 1280 case IOC_W: 1281 argptr = lock_user(arg, target_size, 1); 1282 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1283 unlock_user(argptr, arg, 0); 1284 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1285 break; 1286 default: 1287 case IOC_RW: 1288 argptr = lock_user(arg, target_size, 1); 1289 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1290 unlock_user(argptr, arg, 0); 1291 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1292 if (!is_error(ret)) { 1293 argptr = lock_user(arg, target_size, 0); 1294 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1295 unlock_user(argptr, arg, target_size); 1296 } 1297 break; 1298 } 1299 break; 1300 default: 1301 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 1302 ret = -ENOSYS; 1303 break; 1304 } 1305 return ret; 1306 } 1307 1308 bitmask_transtbl iflag_tbl[] = { 1309 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1310 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1311 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1312 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1313 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1314 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1315 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1316 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1317 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1318 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1319 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1320 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1321 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1322 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1323 { 0, 0, 0, 0 } 1324 }; 1325 1326 bitmask_transtbl oflag_tbl[] = { 1327 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1328 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1329 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1330 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1331 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1332 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1333 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1334 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1335 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1336 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1337 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1338 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1339 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1340 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1341 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1342 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1343 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1344 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1345 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1346 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1347 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1348 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1349 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1350 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1351 { 0, 0, 0, 0 } 1352 }; 1353 1354 bitmask_transtbl cflag_tbl[] = { 1355 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1356 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1357 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1358 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1359 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1360 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1361 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1362 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1363 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1364 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1365 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1366 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1367 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1368 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1369 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1370 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1371 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1372 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1373 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1374 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1375 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1376 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1377 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1378 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1379 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1380 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1381 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1382 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1383 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1384 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1385 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1386 { 0, 0, 0, 0 } 1387 }; 1388 1389 bitmask_transtbl lflag_tbl[] = { 1390 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1391 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1392 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1393 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1394 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1395 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1396 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1397 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1398 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1399 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1400 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1401 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1402 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1403 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1404 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1405 { 0, 0, 0, 0 } 1406 }; 1407 1408 static void target_to_host_termios (void *dst, const void *src) 1409 { 1410 struct host_termios *host = dst; 1411 const struct target_termios *target = src; 1412 1413 host->c_iflag = 1414 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 1415 host->c_oflag = 1416 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 1417 host->c_cflag = 1418 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 1419 host->c_lflag = 1420 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 1421 host->c_line = target->c_line; 1422 1423 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 1424 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 1425 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 1426 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 1427 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 1428 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 1429 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 1430 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 1431 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 1432 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 1433 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 1434 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 1435 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 1436 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 1437 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 1438 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 1439 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 1440 } 1441 1442 static void host_to_target_termios (void *dst, const void *src) 1443 { 1444 struct target_termios *target = dst; 1445 const struct host_termios *host = src; 1446 1447 target->c_iflag = 1448 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 1449 target->c_oflag = 1450 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 1451 target->c_cflag = 1452 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 1453 target->c_lflag = 1454 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 1455 target->c_line = host->c_line; 1456 1457 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 1458 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 1459 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 1460 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 1461 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 1462 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 1463 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 1464 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 1465 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 1466 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 1467 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 1468 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 1469 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 1470 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 1471 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 1472 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 1473 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 1474 } 1475 1476 StructEntry struct_termios_def = { 1477 .convert = { host_to_target_termios, target_to_host_termios }, 1478 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 1479 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 1480 }; 1481 1482 static bitmask_transtbl mmap_flags_tbl[] = { 1483 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 1484 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 1485 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 1486 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 1487 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 1488 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 1489 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 1490 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 1491 { 0, 0, 0, 0 } 1492 }; 1493 1494 static bitmask_transtbl fcntl_flags_tbl[] = { 1495 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 1496 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 1497 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 1498 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 1499 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 1500 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 1501 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 1502 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 1503 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 1504 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 1505 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 1506 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 1507 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 1508 #if defined(O_DIRECT) 1509 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 1510 #endif 1511 { 0, 0, 0, 0 } 1512 }; 1513 1514 #if defined(TARGET_I386) 1515 1516 /* NOTE: there is really one LDT for all the threads */ 1517 uint8_t *ldt_table; 1518 1519 static int read_ldt(target_ulong ptr, unsigned long bytecount) 1520 { 1521 int size; 1522 void *p; 1523 1524 if (!ldt_table) 1525 return 0; 1526 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 1527 if (size > bytecount) 1528 size = bytecount; 1529 p = lock_user(ptr, size, 0); 1530 /* ??? Shoudl this by byteswapped? */ 1531 memcpy(p, ldt_table, size); 1532 unlock_user(p, ptr, size); 1533 return size; 1534 } 1535 1536 /* XXX: add locking support */ 1537 static int write_ldt(CPUX86State *env, 1538 target_ulong ptr, unsigned long bytecount, int oldmode) 1539 { 1540 struct target_modify_ldt_ldt_s ldt_info; 1541 struct target_modify_ldt_ldt_s *target_ldt_info; 1542 int seg_32bit, contents, read_exec_only, limit_in_pages; 1543 int seg_not_present, useable; 1544 uint32_t *lp, entry_1, entry_2; 1545 1546 if (bytecount != sizeof(ldt_info)) 1547 return -EINVAL; 1548 lock_user_struct(target_ldt_info, ptr, 1); 1549 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 1550 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 1551 ldt_info.limit = tswap32(target_ldt_info->limit); 1552 ldt_info.flags = tswap32(target_ldt_info->flags); 1553 unlock_user_struct(target_ldt_info, ptr, 0); 1554 1555 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 1556 return -EINVAL; 1557 seg_32bit = ldt_info.flags & 1; 1558 contents = (ldt_info.flags >> 1) & 3; 1559 read_exec_only = (ldt_info.flags >> 3) & 1; 1560 limit_in_pages = (ldt_info.flags >> 4) & 1; 1561 seg_not_present = (ldt_info.flags >> 5) & 1; 1562 useable = (ldt_info.flags >> 6) & 1; 1563 1564 if (contents == 3) { 1565 if (oldmode) 1566 return -EINVAL; 1567 if (seg_not_present == 0) 1568 return -EINVAL; 1569 } 1570 /* allocate the LDT */ 1571 if (!ldt_table) { 1572 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1573 if (!ldt_table) 1574 return -ENOMEM; 1575 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1576 env->ldt.base = h2g(ldt_table); 1577 env->ldt.limit = 0xffff; 1578 } 1579 1580 /* NOTE: same code as Linux kernel */ 1581 /* Allow LDTs to be cleared by the user. */ 1582 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1583 if (oldmode || 1584 (contents == 0 && 1585 read_exec_only == 1 && 1586 seg_32bit == 0 && 1587 limit_in_pages == 0 && 1588 seg_not_present == 1 && 1589 useable == 0 )) { 1590 entry_1 = 0; 1591 entry_2 = 0; 1592 goto install; 1593 } 1594 } 1595 1596 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1597 (ldt_info.limit & 0x0ffff); 1598 entry_2 = (ldt_info.base_addr & 0xff000000) | 1599 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1600 (ldt_info.limit & 0xf0000) | 1601 ((read_exec_only ^ 1) << 9) | 1602 (contents << 10) | 1603 ((seg_not_present ^ 1) << 15) | 1604 (seg_32bit << 22) | 1605 (limit_in_pages << 23) | 1606 0x7000; 1607 if (!oldmode) 1608 entry_2 |= (useable << 20); 1609 1610 /* Install the new entry ... */ 1611 install: 1612 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1613 lp[0] = tswap32(entry_1); 1614 lp[1] = tswap32(entry_2); 1615 return 0; 1616 } 1617 1618 /* specific and weird i386 syscalls */ 1619 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount) 1620 { 1621 int ret = -ENOSYS; 1622 1623 switch (func) { 1624 case 0: 1625 ret = read_ldt(ptr, bytecount); 1626 break; 1627 case 1: 1628 ret = write_ldt(env, ptr, bytecount, 1); 1629 break; 1630 case 0x11: 1631 ret = write_ldt(env, ptr, bytecount, 0); 1632 break; 1633 } 1634 return ret; 1635 } 1636 1637 #endif /* defined(TARGET_I386) */ 1638 1639 /* this stack is the equivalent of the kernel stack associated with a 1640 thread/process */ 1641 #define NEW_STACK_SIZE 8192 1642 1643 static int clone_func(void *arg) 1644 { 1645 CPUState *env = arg; 1646 cpu_loop(env); 1647 /* never exits */ 1648 return 0; 1649 } 1650 1651 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 1652 { 1653 int ret; 1654 TaskState *ts; 1655 uint8_t *new_stack; 1656 CPUState *new_env; 1657 1658 if (flags & CLONE_VM) { 1659 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 1660 memset(ts, 0, sizeof(TaskState)); 1661 new_stack = ts->stack; 1662 ts->used = 1; 1663 /* add in task state list */ 1664 ts->next = first_task_state; 1665 first_task_state = ts; 1666 /* we create a new CPU instance. */ 1667 new_env = cpu_init(); 1668 memcpy(new_env, env, sizeof(CPUState)); 1669 #if defined(TARGET_I386) 1670 if (!newsp) 1671 newsp = env->regs[R_ESP]; 1672 new_env->regs[R_ESP] = newsp; 1673 new_env->regs[R_EAX] = 0; 1674 #elif defined(TARGET_ARM) 1675 if (!newsp) 1676 newsp = env->regs[13]; 1677 new_env->regs[13] = newsp; 1678 new_env->regs[0] = 0; 1679 #elif defined(TARGET_SPARC) 1680 if (!newsp) 1681 newsp = env->regwptr[22]; 1682 new_env->regwptr[22] = newsp; 1683 new_env->regwptr[0] = 0; 1684 /* XXXXX */ 1685 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 1686 #elif defined(TARGET_M68K) 1687 if (!newsp) 1688 newsp = env->aregs[7]; 1689 new_env->aregs[7] = newsp; 1690 new_env->dregs[0] = 0; 1691 /* ??? is this sufficient? */ 1692 #elif defined(TARGET_MIPS) 1693 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 1694 #elif defined(TARGET_PPC) 1695 if (!newsp) 1696 newsp = env->gpr[1]; 1697 new_env->gpr[1] = newsp; 1698 { 1699 int i; 1700 for (i = 7; i < 32; i++) 1701 new_env->gpr[i] = 0; 1702 } 1703 #elif defined(TARGET_SH4) 1704 if (!newsp) 1705 newsp = env->gregs[15]; 1706 new_env->gregs[15] = newsp; 1707 /* XXXXX */ 1708 #else 1709 #error unsupported target CPU 1710 #endif 1711 new_env->opaque = ts; 1712 #ifdef __ia64__ 1713 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1714 #else 1715 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1716 #endif 1717 } else { 1718 /* if no CLONE_VM, we consider it is a fork */ 1719 if ((flags & ~CSIGNAL) != 0) 1720 return -EINVAL; 1721 ret = fork(); 1722 } 1723 return ret; 1724 } 1725 1726 static long do_fcntl(int fd, int cmd, target_ulong arg) 1727 { 1728 struct flock fl; 1729 struct target_flock *target_fl; 1730 struct flock64 fl64; 1731 struct target_flock64 *target_fl64; 1732 long ret; 1733 1734 switch(cmd) { 1735 case TARGET_F_GETLK: 1736 ret = fcntl(fd, cmd, &fl); 1737 if (ret == 0) { 1738 lock_user_struct(target_fl, arg, 0); 1739 target_fl->l_type = tswap16(fl.l_type); 1740 target_fl->l_whence = tswap16(fl.l_whence); 1741 target_fl->l_start = tswapl(fl.l_start); 1742 target_fl->l_len = tswapl(fl.l_len); 1743 target_fl->l_pid = tswapl(fl.l_pid); 1744 unlock_user_struct(target_fl, arg, 1); 1745 } 1746 break; 1747 1748 case TARGET_F_SETLK: 1749 case TARGET_F_SETLKW: 1750 lock_user_struct(target_fl, arg, 1); 1751 fl.l_type = tswap16(target_fl->l_type); 1752 fl.l_whence = tswap16(target_fl->l_whence); 1753 fl.l_start = tswapl(target_fl->l_start); 1754 fl.l_len = tswapl(target_fl->l_len); 1755 fl.l_pid = tswapl(target_fl->l_pid); 1756 unlock_user_struct(target_fl, arg, 0); 1757 ret = fcntl(fd, cmd, &fl); 1758 break; 1759 1760 case TARGET_F_GETLK64: 1761 ret = fcntl(fd, cmd >> 1, &fl64); 1762 if (ret == 0) { 1763 lock_user_struct(target_fl64, arg, 0); 1764 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 1765 target_fl64->l_whence = tswap16(fl64.l_whence); 1766 target_fl64->l_start = tswapl(fl64.l_start); 1767 target_fl64->l_len = tswapl(fl64.l_len); 1768 target_fl64->l_pid = tswapl(fl64.l_pid); 1769 unlock_user_struct(target_fl64, arg, 1); 1770 } 1771 break; 1772 case TARGET_F_SETLK64: 1773 case TARGET_F_SETLKW64: 1774 lock_user_struct(target_fl64, arg, 1); 1775 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 1776 fl64.l_whence = tswap16(target_fl64->l_whence); 1777 fl64.l_start = tswapl(target_fl64->l_start); 1778 fl64.l_len = tswapl(target_fl64->l_len); 1779 fl64.l_pid = tswap16(target_fl64->l_pid); 1780 unlock_user_struct(target_fl64, arg, 0); 1781 ret = fcntl(fd, cmd >> 1, &fl64); 1782 break; 1783 1784 case F_GETFL: 1785 ret = fcntl(fd, cmd, arg); 1786 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 1787 break; 1788 1789 case F_SETFL: 1790 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 1791 break; 1792 1793 default: 1794 ret = fcntl(fd, cmd, arg); 1795 break; 1796 } 1797 return ret; 1798 } 1799 1800 #ifdef USE_UID16 1801 1802 static inline int high2lowuid(int uid) 1803 { 1804 if (uid > 65535) 1805 return 65534; 1806 else 1807 return uid; 1808 } 1809 1810 static inline int high2lowgid(int gid) 1811 { 1812 if (gid > 65535) 1813 return 65534; 1814 else 1815 return gid; 1816 } 1817 1818 static inline int low2highuid(int uid) 1819 { 1820 if ((int16_t)uid == -1) 1821 return -1; 1822 else 1823 return uid; 1824 } 1825 1826 static inline int low2highgid(int gid) 1827 { 1828 if ((int16_t)gid == -1) 1829 return -1; 1830 else 1831 return gid; 1832 } 1833 1834 #endif /* USE_UID16 */ 1835 1836 void syscall_init(void) 1837 { 1838 IOCTLEntry *ie; 1839 const argtype *arg_type; 1840 int size; 1841 1842 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1843 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1844 #include "syscall_types.h" 1845 #undef STRUCT 1846 #undef STRUCT_SPECIAL 1847 1848 /* we patch the ioctl size if necessary. We rely on the fact that 1849 no ioctl has all the bits at '1' in the size field */ 1850 ie = ioctl_entries; 1851 while (ie->target_cmd != 0) { 1852 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 1853 TARGET_IOC_SIZEMASK) { 1854 arg_type = ie->arg_type; 1855 if (arg_type[0] != TYPE_PTR) { 1856 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 1857 ie->target_cmd); 1858 exit(1); 1859 } 1860 arg_type++; 1861 size = thunk_type_size(arg_type, 0); 1862 ie->target_cmd = (ie->target_cmd & 1863 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 1864 (size << TARGET_IOC_SIZESHIFT); 1865 } 1866 /* automatic consistency check if same arch */ 1867 #if defined(__i386__) && defined(TARGET_I386) 1868 if (ie->target_cmd != ie->host_cmd) { 1869 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 1870 ie->target_cmd, ie->host_cmd); 1871 } 1872 #endif 1873 ie++; 1874 } 1875 } 1876 1877 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 1878 { 1879 #ifdef TARGET_WORDS_BIG_ENDIAN 1880 return ((uint64_t)word0 << 32) | word1; 1881 #else 1882 return ((uint64_t)word1 << 32) | word0; 1883 #endif 1884 } 1885 1886 #ifdef TARGET_NR_truncate64 1887 static inline long target_truncate64(void *cpu_env, const char *arg1, 1888 long arg2, long arg3, long arg4) 1889 { 1890 #ifdef TARGET_ARM 1891 if (((CPUARMState *)cpu_env)->eabi) 1892 { 1893 arg2 = arg3; 1894 arg3 = arg4; 1895 } 1896 #endif 1897 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 1898 } 1899 #endif 1900 1901 #ifdef TARGET_NR_ftruncate64 1902 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 1903 long arg3, long arg4) 1904 { 1905 #ifdef TARGET_ARM 1906 if (((CPUARMState *)cpu_env)->eabi) 1907 { 1908 arg2 = arg3; 1909 arg3 = arg4; 1910 } 1911 #endif 1912 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 1913 } 1914 #endif 1915 1916 static inline void target_to_host_timespec(struct timespec *host_ts, 1917 target_ulong target_addr) 1918 { 1919 struct target_timespec *target_ts; 1920 1921 lock_user_struct(target_ts, target_addr, 1); 1922 host_ts->tv_sec = tswapl(target_ts->tv_sec); 1923 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 1924 unlock_user_struct(target_ts, target_addr, 0); 1925 } 1926 1927 static inline void host_to_target_timespec(target_ulong target_addr, 1928 struct timespec *host_ts) 1929 { 1930 struct target_timespec *target_ts; 1931 1932 lock_user_struct(target_ts, target_addr, 0); 1933 target_ts->tv_sec = tswapl(host_ts->tv_sec); 1934 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 1935 unlock_user_struct(target_ts, target_addr, 1); 1936 } 1937 1938 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 1939 long arg4, long arg5, long arg6) 1940 { 1941 long ret; 1942 struct stat st; 1943 struct statfs stfs; 1944 void *p; 1945 1946 #ifdef DEBUG 1947 gemu_log("syscall %d", num); 1948 #endif 1949 switch(num) { 1950 case TARGET_NR_exit: 1951 #ifdef HAVE_GPROF 1952 _mcleanup(); 1953 #endif 1954 gdb_exit(cpu_env, arg1); 1955 /* XXX: should free thread stack and CPU env */ 1956 _exit(arg1); 1957 ret = 0; /* avoid warning */ 1958 break; 1959 case TARGET_NR_read: 1960 page_unprotect_range(arg2, arg3); 1961 p = lock_user(arg2, arg3, 0); 1962 ret = get_errno(read(arg1, p, arg3)); 1963 unlock_user(p, arg2, ret); 1964 break; 1965 case TARGET_NR_write: 1966 p = lock_user(arg2, arg3, 1); 1967 ret = get_errno(write(arg1, p, arg3)); 1968 unlock_user(p, arg2, 0); 1969 break; 1970 case TARGET_NR_open: 1971 p = lock_user_string(arg1); 1972 ret = get_errno(open(path(p), 1973 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1974 arg3)); 1975 unlock_user(p, arg1, 0); 1976 break; 1977 case TARGET_NR_close: 1978 ret = get_errno(close(arg1)); 1979 break; 1980 case TARGET_NR_brk: 1981 ret = do_brk(arg1); 1982 break; 1983 case TARGET_NR_fork: 1984 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 1985 break; 1986 case TARGET_NR_waitpid: 1987 { 1988 int status; 1989 ret = get_errno(waitpid(arg1, &status, arg3)); 1990 if (!is_error(ret) && arg2) 1991 tput32(arg2, status); 1992 } 1993 break; 1994 case TARGET_NR_creat: 1995 p = lock_user_string(arg1); 1996 ret = get_errno(creat(p, arg2)); 1997 unlock_user(p, arg1, 0); 1998 break; 1999 case TARGET_NR_link: 2000 { 2001 void * p2; 2002 p = lock_user_string(arg1); 2003 p2 = lock_user_string(arg2); 2004 ret = get_errno(link(p, p2)); 2005 unlock_user(p2, arg2, 0); 2006 unlock_user(p, arg1, 0); 2007 } 2008 break; 2009 case TARGET_NR_unlink: 2010 p = lock_user_string(arg1); 2011 ret = get_errno(unlink(p)); 2012 unlock_user(p, arg1, 0); 2013 break; 2014 case TARGET_NR_execve: 2015 { 2016 char **argp, **envp; 2017 int argc, envc; 2018 target_ulong gp; 2019 target_ulong guest_argp; 2020 target_ulong guest_envp; 2021 target_ulong addr; 2022 char **q; 2023 2024 argc = 0; 2025 guest_argp = arg2; 2026 for (gp = guest_argp; tgetl(gp); gp++) 2027 argc++; 2028 envc = 0; 2029 guest_envp = arg3; 2030 for (gp = guest_envp; tgetl(gp); gp++) 2031 envc++; 2032 2033 argp = alloca((argc + 1) * sizeof(void *)); 2034 envp = alloca((envc + 1) * sizeof(void *)); 2035 2036 for (gp = guest_argp, q = argp; ; 2037 gp += sizeof(target_ulong), q++) { 2038 addr = tgetl(gp); 2039 if (!addr) 2040 break; 2041 *q = lock_user_string(addr); 2042 } 2043 *q = NULL; 2044 2045 for (gp = guest_envp, q = envp; ; 2046 gp += sizeof(target_ulong), q++) { 2047 addr = tgetl(gp); 2048 if (!addr) 2049 break; 2050 *q = lock_user_string(addr); 2051 } 2052 *q = NULL; 2053 2054 p = lock_user_string(arg1); 2055 ret = get_errno(execve(p, argp, envp)); 2056 unlock_user(p, arg1, 0); 2057 2058 for (gp = guest_argp, q = argp; *q; 2059 gp += sizeof(target_ulong), q++) { 2060 addr = tgetl(gp); 2061 unlock_user(*q, addr, 0); 2062 } 2063 for (gp = guest_envp, q = envp; *q; 2064 gp += sizeof(target_ulong), q++) { 2065 addr = tgetl(gp); 2066 unlock_user(*q, addr, 0); 2067 } 2068 } 2069 break; 2070 case TARGET_NR_chdir: 2071 p = lock_user_string(arg1); 2072 ret = get_errno(chdir(p)); 2073 unlock_user(p, arg1, 0); 2074 break; 2075 #ifdef TARGET_NR_time 2076 case TARGET_NR_time: 2077 { 2078 time_t host_time; 2079 ret = get_errno(time(&host_time)); 2080 if (!is_error(ret) && arg1) 2081 tputl(arg1, host_time); 2082 } 2083 break; 2084 #endif 2085 case TARGET_NR_mknod: 2086 p = lock_user_string(arg1); 2087 ret = get_errno(mknod(p, arg2, arg3)); 2088 unlock_user(p, arg1, 0); 2089 break; 2090 case TARGET_NR_chmod: 2091 p = lock_user_string(arg1); 2092 ret = get_errno(chmod(p, arg2)); 2093 unlock_user(p, arg1, 0); 2094 break; 2095 #ifdef TARGET_NR_break 2096 case TARGET_NR_break: 2097 goto unimplemented; 2098 #endif 2099 #ifdef TARGET_NR_oldstat 2100 case TARGET_NR_oldstat: 2101 goto unimplemented; 2102 #endif 2103 case TARGET_NR_lseek: 2104 ret = get_errno(lseek(arg1, arg2, arg3)); 2105 break; 2106 case TARGET_NR_getpid: 2107 ret = get_errno(getpid()); 2108 break; 2109 case TARGET_NR_mount: 2110 /* need to look at the data field */ 2111 goto unimplemented; 2112 case TARGET_NR_umount: 2113 p = lock_user_string(arg1); 2114 ret = get_errno(umount(p)); 2115 unlock_user(p, arg1, 0); 2116 break; 2117 case TARGET_NR_stime: 2118 { 2119 time_t host_time; 2120 host_time = tgetl(arg1); 2121 ret = get_errno(stime(&host_time)); 2122 } 2123 break; 2124 case TARGET_NR_ptrace: 2125 goto unimplemented; 2126 case TARGET_NR_alarm: 2127 ret = alarm(arg1); 2128 break; 2129 #ifdef TARGET_NR_oldfstat 2130 case TARGET_NR_oldfstat: 2131 goto unimplemented; 2132 #endif 2133 case TARGET_NR_pause: 2134 ret = get_errno(pause()); 2135 break; 2136 case TARGET_NR_utime: 2137 { 2138 struct utimbuf tbuf, *host_tbuf; 2139 struct target_utimbuf *target_tbuf; 2140 if (arg2) { 2141 lock_user_struct(target_tbuf, arg2, 1); 2142 tbuf.actime = tswapl(target_tbuf->actime); 2143 tbuf.modtime = tswapl(target_tbuf->modtime); 2144 unlock_user_struct(target_tbuf, arg2, 0); 2145 host_tbuf = &tbuf; 2146 } else { 2147 host_tbuf = NULL; 2148 } 2149 p = lock_user_string(arg1); 2150 ret = get_errno(utime(p, host_tbuf)); 2151 unlock_user(p, arg1, 0); 2152 } 2153 break; 2154 case TARGET_NR_utimes: 2155 { 2156 struct timeval *tvp, tv[2]; 2157 if (arg2) { 2158 target_to_host_timeval(&tv[0], arg2); 2159 target_to_host_timeval(&tv[1], 2160 arg2 + sizeof (struct target_timeval)); 2161 tvp = tv; 2162 } else { 2163 tvp = NULL; 2164 } 2165 p = lock_user_string(arg1); 2166 ret = get_errno(utimes(p, tvp)); 2167 unlock_user(p, arg1, 0); 2168 } 2169 break; 2170 #ifdef TARGET_NR_stty 2171 case TARGET_NR_stty: 2172 goto unimplemented; 2173 #endif 2174 #ifdef TARGET_NR_gtty 2175 case TARGET_NR_gtty: 2176 goto unimplemented; 2177 #endif 2178 case TARGET_NR_access: 2179 p = lock_user_string(arg1); 2180 ret = get_errno(access(p, arg2)); 2181 unlock_user(p, arg1, 0); 2182 break; 2183 case TARGET_NR_nice: 2184 ret = get_errno(nice(arg1)); 2185 break; 2186 #ifdef TARGET_NR_ftime 2187 case TARGET_NR_ftime: 2188 goto unimplemented; 2189 #endif 2190 case TARGET_NR_sync: 2191 sync(); 2192 ret = 0; 2193 break; 2194 case TARGET_NR_kill: 2195 ret = get_errno(kill(arg1, arg2)); 2196 break; 2197 case TARGET_NR_rename: 2198 { 2199 void *p2; 2200 p = lock_user_string(arg1); 2201 p2 = lock_user_string(arg2); 2202 ret = get_errno(rename(p, p2)); 2203 unlock_user(p2, arg2, 0); 2204 unlock_user(p, arg1, 0); 2205 } 2206 break; 2207 case TARGET_NR_mkdir: 2208 p = lock_user_string(arg1); 2209 ret = get_errno(mkdir(p, arg2)); 2210 unlock_user(p, arg1, 0); 2211 break; 2212 case TARGET_NR_rmdir: 2213 p = lock_user_string(arg1); 2214 ret = get_errno(rmdir(p)); 2215 unlock_user(p, arg1, 0); 2216 break; 2217 case TARGET_NR_dup: 2218 ret = get_errno(dup(arg1)); 2219 break; 2220 case TARGET_NR_pipe: 2221 { 2222 int host_pipe[2]; 2223 ret = get_errno(pipe(host_pipe)); 2224 if (!is_error(ret)) { 2225 tput32(arg1, host_pipe[0]); 2226 tput32(arg1 + 4, host_pipe[1]); 2227 } 2228 } 2229 break; 2230 case TARGET_NR_times: 2231 { 2232 struct target_tms *tmsp; 2233 struct tms tms; 2234 ret = get_errno(times(&tms)); 2235 if (arg1) { 2236 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2237 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2238 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2239 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2240 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2241 } 2242 if (!is_error(ret)) 2243 ret = host_to_target_clock_t(ret); 2244 } 2245 break; 2246 #ifdef TARGET_NR_prof 2247 case TARGET_NR_prof: 2248 goto unimplemented; 2249 #endif 2250 case TARGET_NR_signal: 2251 goto unimplemented; 2252 2253 case TARGET_NR_acct: 2254 p = lock_user_string(arg1); 2255 ret = get_errno(acct(path(p))); 2256 unlock_user(p, arg1, 0); 2257 break; 2258 case TARGET_NR_umount2: 2259 p = lock_user_string(arg1); 2260 ret = get_errno(umount2(p, arg2)); 2261 unlock_user(p, arg1, 0); 2262 break; 2263 #ifdef TARGET_NR_lock 2264 case TARGET_NR_lock: 2265 goto unimplemented; 2266 #endif 2267 case TARGET_NR_ioctl: 2268 ret = do_ioctl(arg1, arg2, arg3); 2269 break; 2270 case TARGET_NR_fcntl: 2271 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2272 break; 2273 #ifdef TARGET_NR_mpx 2274 case TARGET_NR_mpx: 2275 goto unimplemented; 2276 #endif 2277 case TARGET_NR_setpgid: 2278 ret = get_errno(setpgid(arg1, arg2)); 2279 break; 2280 #ifdef TARGET_NR_ulimit 2281 case TARGET_NR_ulimit: 2282 goto unimplemented; 2283 #endif 2284 #ifdef TARGET_NR_oldolduname 2285 case TARGET_NR_oldolduname: 2286 goto unimplemented; 2287 #endif 2288 case TARGET_NR_umask: 2289 ret = get_errno(umask(arg1)); 2290 break; 2291 case TARGET_NR_chroot: 2292 p = lock_user_string(arg1); 2293 ret = get_errno(chroot(p)); 2294 unlock_user(p, arg1, 0); 2295 break; 2296 case TARGET_NR_ustat: 2297 goto unimplemented; 2298 case TARGET_NR_dup2: 2299 ret = get_errno(dup2(arg1, arg2)); 2300 break; 2301 case TARGET_NR_getppid: 2302 ret = get_errno(getppid()); 2303 break; 2304 case TARGET_NR_getpgrp: 2305 ret = get_errno(getpgrp()); 2306 break; 2307 case TARGET_NR_setsid: 2308 ret = get_errno(setsid()); 2309 break; 2310 case TARGET_NR_sigaction: 2311 { 2312 #if !defined(TARGET_MIPS) 2313 struct target_old_sigaction *old_act; 2314 struct target_sigaction act, oact, *pact; 2315 if (arg2) { 2316 lock_user_struct(old_act, arg2, 1); 2317 act._sa_handler = old_act->_sa_handler; 2318 target_siginitset(&act.sa_mask, old_act->sa_mask); 2319 act.sa_flags = old_act->sa_flags; 2320 act.sa_restorer = old_act->sa_restorer; 2321 unlock_user_struct(old_act, arg2, 0); 2322 pact = &act; 2323 } else { 2324 pact = NULL; 2325 } 2326 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2327 if (!is_error(ret) && arg3) { 2328 lock_user_struct(old_act, arg3, 0); 2329 old_act->_sa_handler = oact._sa_handler; 2330 old_act->sa_mask = oact.sa_mask.sig[0]; 2331 old_act->sa_flags = oact.sa_flags; 2332 old_act->sa_restorer = oact.sa_restorer; 2333 unlock_user_struct(old_act, arg3, 1); 2334 } 2335 #else 2336 struct target_sigaction act, oact, *pact, *old_act; 2337 2338 if (arg2) { 2339 lock_user_struct(old_act, arg2, 1); 2340 act._sa_handler = old_act->_sa_handler; 2341 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2342 act.sa_flags = old_act->sa_flags; 2343 unlock_user_struct(old_act, arg2, 0); 2344 pact = &act; 2345 } else { 2346 pact = NULL; 2347 } 2348 2349 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2350 2351 if (!is_error(ret) && arg3) { 2352 lock_user_struct(old_act, arg3, 0); 2353 old_act->_sa_handler = oact._sa_handler; 2354 old_act->sa_flags = oact.sa_flags; 2355 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 2356 old_act->sa_mask.sig[1] = 0; 2357 old_act->sa_mask.sig[2] = 0; 2358 old_act->sa_mask.sig[3] = 0; 2359 unlock_user_struct(old_act, arg3, 1); 2360 } 2361 #endif 2362 } 2363 break; 2364 case TARGET_NR_rt_sigaction: 2365 { 2366 struct target_sigaction *act; 2367 struct target_sigaction *oact; 2368 2369 if (arg2) 2370 lock_user_struct(act, arg2, 1); 2371 else 2372 act = NULL; 2373 if (arg3) 2374 lock_user_struct(oact, arg3, 0); 2375 else 2376 oact = NULL; 2377 ret = get_errno(do_sigaction(arg1, act, oact)); 2378 if (arg2) 2379 unlock_user_struct(act, arg2, 0); 2380 if (arg3) 2381 unlock_user_struct(oact, arg3, 1); 2382 } 2383 break; 2384 case TARGET_NR_sgetmask: 2385 { 2386 sigset_t cur_set; 2387 target_ulong target_set; 2388 sigprocmask(0, NULL, &cur_set); 2389 host_to_target_old_sigset(&target_set, &cur_set); 2390 ret = target_set; 2391 } 2392 break; 2393 case TARGET_NR_ssetmask: 2394 { 2395 sigset_t set, oset, cur_set; 2396 target_ulong target_set = arg1; 2397 sigprocmask(0, NULL, &cur_set); 2398 target_to_host_old_sigset(&set, &target_set); 2399 sigorset(&set, &set, &cur_set); 2400 sigprocmask(SIG_SETMASK, &set, &oset); 2401 host_to_target_old_sigset(&target_set, &oset); 2402 ret = target_set; 2403 } 2404 break; 2405 case TARGET_NR_sigprocmask: 2406 { 2407 int how = arg1; 2408 sigset_t set, oldset, *set_ptr; 2409 2410 if (arg2) { 2411 switch(how) { 2412 case TARGET_SIG_BLOCK: 2413 how = SIG_BLOCK; 2414 break; 2415 case TARGET_SIG_UNBLOCK: 2416 how = SIG_UNBLOCK; 2417 break; 2418 case TARGET_SIG_SETMASK: 2419 how = SIG_SETMASK; 2420 break; 2421 default: 2422 ret = -EINVAL; 2423 goto fail; 2424 } 2425 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2426 target_to_host_old_sigset(&set, p); 2427 unlock_user(p, arg2, 0); 2428 set_ptr = &set; 2429 } else { 2430 how = 0; 2431 set_ptr = NULL; 2432 } 2433 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 2434 if (!is_error(ret) && arg3) { 2435 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2436 host_to_target_old_sigset(p, &oldset); 2437 unlock_user(p, arg3, sizeof(target_sigset_t)); 2438 } 2439 } 2440 break; 2441 case TARGET_NR_rt_sigprocmask: 2442 { 2443 int how = arg1; 2444 sigset_t set, oldset, *set_ptr; 2445 2446 if (arg2) { 2447 switch(how) { 2448 case TARGET_SIG_BLOCK: 2449 how = SIG_BLOCK; 2450 break; 2451 case TARGET_SIG_UNBLOCK: 2452 how = SIG_UNBLOCK; 2453 break; 2454 case TARGET_SIG_SETMASK: 2455 how = SIG_SETMASK; 2456 break; 2457 default: 2458 ret = -EINVAL; 2459 goto fail; 2460 } 2461 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2462 target_to_host_sigset(&set, p); 2463 unlock_user(p, arg2, 0); 2464 set_ptr = &set; 2465 } else { 2466 how = 0; 2467 set_ptr = NULL; 2468 } 2469 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 2470 if (!is_error(ret) && arg3) { 2471 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2472 host_to_target_sigset(p, &oldset); 2473 unlock_user(p, arg3, sizeof(target_sigset_t)); 2474 } 2475 } 2476 break; 2477 case TARGET_NR_sigpending: 2478 { 2479 sigset_t set; 2480 ret = get_errno(sigpending(&set)); 2481 if (!is_error(ret)) { 2482 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2483 host_to_target_old_sigset(p, &set); 2484 unlock_user(p, arg1, sizeof(target_sigset_t)); 2485 } 2486 } 2487 break; 2488 case TARGET_NR_rt_sigpending: 2489 { 2490 sigset_t set; 2491 ret = get_errno(sigpending(&set)); 2492 if (!is_error(ret)) { 2493 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2494 host_to_target_sigset(p, &set); 2495 unlock_user(p, arg1, sizeof(target_sigset_t)); 2496 } 2497 } 2498 break; 2499 case TARGET_NR_sigsuspend: 2500 { 2501 sigset_t set; 2502 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2503 target_to_host_old_sigset(&set, p); 2504 unlock_user(p, arg1, 0); 2505 ret = get_errno(sigsuspend(&set)); 2506 } 2507 break; 2508 case TARGET_NR_rt_sigsuspend: 2509 { 2510 sigset_t set; 2511 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2512 target_to_host_sigset(&set, p); 2513 unlock_user(p, arg1, 0); 2514 ret = get_errno(sigsuspend(&set)); 2515 } 2516 break; 2517 case TARGET_NR_rt_sigtimedwait: 2518 { 2519 sigset_t set; 2520 struct timespec uts, *puts; 2521 siginfo_t uinfo; 2522 2523 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2524 target_to_host_sigset(&set, p); 2525 unlock_user(p, arg1, 0); 2526 if (arg3) { 2527 puts = &uts; 2528 target_to_host_timespec(puts, arg3); 2529 } else { 2530 puts = NULL; 2531 } 2532 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 2533 if (!is_error(ret) && arg2) { 2534 p = lock_user(arg2, sizeof(target_sigset_t), 0); 2535 host_to_target_siginfo(p, &uinfo); 2536 unlock_user(p, arg2, sizeof(target_sigset_t)); 2537 } 2538 } 2539 break; 2540 case TARGET_NR_rt_sigqueueinfo: 2541 { 2542 siginfo_t uinfo; 2543 p = lock_user(arg3, sizeof(target_sigset_t), 1); 2544 target_to_host_siginfo(&uinfo, p); 2545 unlock_user(p, arg1, 0); 2546 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 2547 } 2548 break; 2549 case TARGET_NR_sigreturn: 2550 /* NOTE: ret is eax, so not transcoding must be done */ 2551 ret = do_sigreturn(cpu_env); 2552 break; 2553 case TARGET_NR_rt_sigreturn: 2554 /* NOTE: ret is eax, so not transcoding must be done */ 2555 ret = do_rt_sigreturn(cpu_env); 2556 break; 2557 case TARGET_NR_sethostname: 2558 p = lock_user_string(arg1); 2559 ret = get_errno(sethostname(p, arg2)); 2560 unlock_user(p, arg1, 0); 2561 break; 2562 case TARGET_NR_setrlimit: 2563 { 2564 /* XXX: convert resource ? */ 2565 int resource = arg1; 2566 struct target_rlimit *target_rlim; 2567 struct rlimit rlim; 2568 lock_user_struct(target_rlim, arg2, 1); 2569 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2570 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2571 unlock_user_struct(target_rlim, arg2, 0); 2572 ret = get_errno(setrlimit(resource, &rlim)); 2573 } 2574 break; 2575 case TARGET_NR_getrlimit: 2576 { 2577 /* XXX: convert resource ? */ 2578 int resource = arg1; 2579 struct target_rlimit *target_rlim; 2580 struct rlimit rlim; 2581 2582 ret = get_errno(getrlimit(resource, &rlim)); 2583 if (!is_error(ret)) { 2584 lock_user_struct(target_rlim, arg2, 0); 2585 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2586 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2587 unlock_user_struct(target_rlim, arg2, 1); 2588 } 2589 } 2590 break; 2591 case TARGET_NR_getrusage: 2592 { 2593 struct rusage rusage; 2594 ret = get_errno(getrusage(arg1, &rusage)); 2595 if (!is_error(ret)) { 2596 host_to_target_rusage(arg2, &rusage); 2597 } 2598 } 2599 break; 2600 case TARGET_NR_gettimeofday: 2601 { 2602 struct timeval tv; 2603 ret = get_errno(gettimeofday(&tv, NULL)); 2604 if (!is_error(ret)) { 2605 host_to_target_timeval(arg1, &tv); 2606 } 2607 } 2608 break; 2609 case TARGET_NR_settimeofday: 2610 { 2611 struct timeval tv; 2612 target_to_host_timeval(&tv, arg1); 2613 ret = get_errno(settimeofday(&tv, NULL)); 2614 } 2615 break; 2616 #ifdef TARGET_NR_select 2617 case TARGET_NR_select: 2618 { 2619 struct target_sel_arg_struct *sel; 2620 target_ulong inp, outp, exp, tvp; 2621 long nsel; 2622 2623 lock_user_struct(sel, arg1, 1); 2624 nsel = tswapl(sel->n); 2625 inp = tswapl(sel->inp); 2626 outp = tswapl(sel->outp); 2627 exp = tswapl(sel->exp); 2628 tvp = tswapl(sel->tvp); 2629 unlock_user_struct(sel, arg1, 0); 2630 ret = do_select(nsel, inp, outp, exp, tvp); 2631 } 2632 break; 2633 #endif 2634 case TARGET_NR_symlink: 2635 { 2636 void *p2; 2637 p = lock_user_string(arg1); 2638 p2 = lock_user_string(arg2); 2639 ret = get_errno(symlink(p, p2)); 2640 unlock_user(p2, arg2, 0); 2641 unlock_user(p, arg1, 0); 2642 } 2643 break; 2644 #ifdef TARGET_NR_oldlstat 2645 case TARGET_NR_oldlstat: 2646 goto unimplemented; 2647 #endif 2648 case TARGET_NR_readlink: 2649 { 2650 void *p2; 2651 p = lock_user_string(arg1); 2652 p2 = lock_user(arg2, arg3, 0); 2653 ret = get_errno(readlink(path(p), p2, arg3)); 2654 unlock_user(p2, arg2, ret); 2655 unlock_user(p, arg1, 0); 2656 } 2657 break; 2658 case TARGET_NR_uselib: 2659 goto unimplemented; 2660 case TARGET_NR_swapon: 2661 p = lock_user_string(arg1); 2662 ret = get_errno(swapon(p, arg2)); 2663 unlock_user(p, arg1, 0); 2664 break; 2665 case TARGET_NR_reboot: 2666 goto unimplemented; 2667 case TARGET_NR_readdir: 2668 goto unimplemented; 2669 case TARGET_NR_mmap: 2670 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 2671 { 2672 target_ulong *v; 2673 target_ulong v1, v2, v3, v4, v5, v6; 2674 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 2675 v1 = tswapl(v[0]); 2676 v2 = tswapl(v[1]); 2677 v3 = tswapl(v[2]); 2678 v4 = tswapl(v[3]); 2679 v5 = tswapl(v[4]); 2680 v6 = tswapl(v[5]); 2681 unlock_user(v, arg1, 0); 2682 ret = get_errno(target_mmap(v1, v2, v3, 2683 target_to_host_bitmask(v4, mmap_flags_tbl), 2684 v5, v6)); 2685 } 2686 #else 2687 ret = get_errno(target_mmap(arg1, arg2, arg3, 2688 target_to_host_bitmask(arg4, mmap_flags_tbl), 2689 arg5, 2690 arg6)); 2691 #endif 2692 break; 2693 #ifdef TARGET_NR_mmap2 2694 case TARGET_NR_mmap2: 2695 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 2696 #define MMAP_SHIFT 12 2697 #else 2698 #define MMAP_SHIFT TARGET_PAGE_BITS 2699 #endif 2700 ret = get_errno(target_mmap(arg1, arg2, arg3, 2701 target_to_host_bitmask(arg4, mmap_flags_tbl), 2702 arg5, 2703 arg6 << MMAP_SHIFT)); 2704 break; 2705 #endif 2706 case TARGET_NR_munmap: 2707 ret = get_errno(target_munmap(arg1, arg2)); 2708 break; 2709 case TARGET_NR_mprotect: 2710 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 2711 break; 2712 case TARGET_NR_mremap: 2713 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 2714 break; 2715 /* ??? msync/mlock/munlock are broken for softmmu. */ 2716 case TARGET_NR_msync: 2717 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 2718 break; 2719 case TARGET_NR_mlock: 2720 ret = get_errno(mlock(g2h(arg1), arg2)); 2721 break; 2722 case TARGET_NR_munlock: 2723 ret = get_errno(munlock(g2h(arg1), arg2)); 2724 break; 2725 case TARGET_NR_mlockall: 2726 ret = get_errno(mlockall(arg1)); 2727 break; 2728 case TARGET_NR_munlockall: 2729 ret = get_errno(munlockall()); 2730 break; 2731 case TARGET_NR_truncate: 2732 p = lock_user_string(arg1); 2733 ret = get_errno(truncate(p, arg2)); 2734 unlock_user(p, arg1, 0); 2735 break; 2736 case TARGET_NR_ftruncate: 2737 ret = get_errno(ftruncate(arg1, arg2)); 2738 break; 2739 case TARGET_NR_fchmod: 2740 ret = get_errno(fchmod(arg1, arg2)); 2741 break; 2742 case TARGET_NR_getpriority: 2743 ret = get_errno(getpriority(arg1, arg2)); 2744 break; 2745 case TARGET_NR_setpriority: 2746 ret = get_errno(setpriority(arg1, arg2, arg3)); 2747 break; 2748 #ifdef TARGET_NR_profil 2749 case TARGET_NR_profil: 2750 goto unimplemented; 2751 #endif 2752 case TARGET_NR_statfs: 2753 p = lock_user_string(arg1); 2754 ret = get_errno(statfs(path(p), &stfs)); 2755 unlock_user(p, arg1, 0); 2756 convert_statfs: 2757 if (!is_error(ret)) { 2758 struct target_statfs *target_stfs; 2759 2760 lock_user_struct(target_stfs, arg2, 0); 2761 /* ??? put_user is probably wrong. */ 2762 put_user(stfs.f_type, &target_stfs->f_type); 2763 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2764 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2765 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2766 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2767 put_user(stfs.f_files, &target_stfs->f_files); 2768 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2769 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2770 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2771 unlock_user_struct(target_stfs, arg2, 1); 2772 } 2773 break; 2774 case TARGET_NR_fstatfs: 2775 ret = get_errno(fstatfs(arg1, &stfs)); 2776 goto convert_statfs; 2777 #ifdef TARGET_NR_statfs64 2778 case TARGET_NR_statfs64: 2779 p = lock_user_string(arg1); 2780 ret = get_errno(statfs(path(p), &stfs)); 2781 unlock_user(p, arg1, 0); 2782 convert_statfs64: 2783 if (!is_error(ret)) { 2784 struct target_statfs64 *target_stfs; 2785 2786 lock_user_struct(target_stfs, arg3, 0); 2787 /* ??? put_user is probably wrong. */ 2788 put_user(stfs.f_type, &target_stfs->f_type); 2789 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2790 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2791 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2792 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2793 put_user(stfs.f_files, &target_stfs->f_files); 2794 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2795 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2796 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2797 unlock_user_struct(target_stfs, arg3, 0); 2798 } 2799 break; 2800 case TARGET_NR_fstatfs64: 2801 ret = get_errno(fstatfs(arg1, &stfs)); 2802 goto convert_statfs64; 2803 #endif 2804 #ifdef TARGET_NR_ioperm 2805 case TARGET_NR_ioperm: 2806 goto unimplemented; 2807 #endif 2808 case TARGET_NR_socketcall: 2809 ret = do_socketcall(arg1, arg2); 2810 break; 2811 2812 #ifdef TARGET_NR_accept 2813 case TARGET_NR_accept: 2814 ret = do_accept(arg1, arg2, arg3); 2815 break; 2816 #endif 2817 #ifdef TARGET_NR_bind 2818 case TARGET_NR_bind: 2819 ret = do_bind(arg1, arg2, arg3); 2820 break; 2821 #endif 2822 #ifdef TARGET_NR_connect 2823 case TARGET_NR_connect: 2824 ret = do_connect(arg1, arg2, arg3); 2825 break; 2826 #endif 2827 #ifdef TARGET_NR_getpeername 2828 case TARGET_NR_getpeername: 2829 ret = do_getpeername(arg1, arg2, arg3); 2830 break; 2831 #endif 2832 #ifdef TARGET_NR_getsockname 2833 case TARGET_NR_getsockname: 2834 ret = do_getsockname(arg1, arg2, arg3); 2835 break; 2836 #endif 2837 #ifdef TARGET_NR_getsockopt 2838 case TARGET_NR_getsockopt: 2839 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 2840 break; 2841 #endif 2842 #ifdef TARGET_NR_listen 2843 case TARGET_NR_listen: 2844 ret = get_errno(listen(arg1, arg2)); 2845 break; 2846 #endif 2847 #ifdef TARGET_NR_recv 2848 case TARGET_NR_recv: 2849 ret = do_recvfrom(arg1, arg1, arg3, arg4, 0, 0); 2850 break; 2851 #endif 2852 #ifdef TARGET_NR_recvfrom 2853 case TARGET_NR_recvfrom: 2854 ret = do_recvfrom(arg1, arg1, arg3, arg4, arg5, arg6); 2855 break; 2856 #endif 2857 #ifdef TARGET_NR_recvmsg 2858 case TARGET_NR_recvmsg: 2859 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 2860 break; 2861 #endif 2862 #ifdef TARGET_NR_send 2863 case TARGET_NR_send: 2864 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 2865 break; 2866 #endif 2867 #ifdef TARGET_NR_sendmsg 2868 case TARGET_NR_sendmsg: 2869 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 2870 break; 2871 #endif 2872 #ifdef TARGET_NR_sendto 2873 case TARGET_NR_sendto: 2874 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 2875 break; 2876 #endif 2877 #ifdef TARGET_NR_shutdown 2878 case TARGET_NR_shutdown: 2879 ret = get_errno(shutdown(arg1, arg2)); 2880 break; 2881 #endif 2882 #ifdef TARGET_NR_socket 2883 case TARGET_NR_socket: 2884 ret = do_socket(arg1, arg2, arg3); 2885 break; 2886 #endif 2887 #ifdef TARGET_NR_socketpair 2888 case TARGET_NR_socketpair: 2889 ret = do_socketpair(arg1, arg2, arg3, arg4); 2890 break; 2891 #endif 2892 #ifdef TARGET_NR_setsockopt 2893 case TARGET_NR_setsockopt: 2894 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 2895 break; 2896 #endif 2897 2898 case TARGET_NR_syslog: 2899 goto unimplemented; 2900 case TARGET_NR_setitimer: 2901 { 2902 struct itimerval value, ovalue, *pvalue; 2903 2904 if (arg2) { 2905 pvalue = &value; 2906 target_to_host_timeval(&pvalue->it_interval, 2907 arg2); 2908 target_to_host_timeval(&pvalue->it_value, 2909 arg2 + sizeof(struct target_timeval)); 2910 } else { 2911 pvalue = NULL; 2912 } 2913 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 2914 if (!is_error(ret) && arg3) { 2915 host_to_target_timeval(arg3, 2916 &ovalue.it_interval); 2917 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 2918 &ovalue.it_value); 2919 } 2920 } 2921 break; 2922 case TARGET_NR_getitimer: 2923 { 2924 struct itimerval value; 2925 2926 ret = get_errno(getitimer(arg1, &value)); 2927 if (!is_error(ret) && arg2) { 2928 host_to_target_timeval(arg2, 2929 &value.it_interval); 2930 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 2931 &value.it_value); 2932 } 2933 } 2934 break; 2935 case TARGET_NR_stat: 2936 p = lock_user_string(arg1); 2937 ret = get_errno(stat(path(p), &st)); 2938 unlock_user(p, arg1, 0); 2939 goto do_stat; 2940 case TARGET_NR_lstat: 2941 p = lock_user_string(arg1); 2942 ret = get_errno(lstat(path(p), &st)); 2943 unlock_user(p, arg1, 0); 2944 goto do_stat; 2945 case TARGET_NR_fstat: 2946 { 2947 ret = get_errno(fstat(arg1, &st)); 2948 do_stat: 2949 if (!is_error(ret)) { 2950 struct target_stat *target_st; 2951 2952 lock_user_struct(target_st, arg2, 0); 2953 target_st->st_dev = tswap16(st.st_dev); 2954 target_st->st_ino = tswapl(st.st_ino); 2955 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 2956 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 2957 target_st->st_uid = tswap32(st.st_uid); 2958 target_st->st_gid = tswap32(st.st_gid); 2959 #else 2960 target_st->st_mode = tswap16(st.st_mode); 2961 target_st->st_uid = tswap16(st.st_uid); 2962 target_st->st_gid = tswap16(st.st_gid); 2963 #endif 2964 target_st->st_nlink = tswap16(st.st_nlink); 2965 target_st->st_rdev = tswap16(st.st_rdev); 2966 target_st->st_size = tswapl(st.st_size); 2967 target_st->st_blksize = tswapl(st.st_blksize); 2968 target_st->st_blocks = tswapl(st.st_blocks); 2969 target_st->target_st_atime = tswapl(st.st_atime); 2970 target_st->target_st_mtime = tswapl(st.st_mtime); 2971 target_st->target_st_ctime = tswapl(st.st_ctime); 2972 unlock_user_struct(target_st, arg2, 1); 2973 } 2974 } 2975 break; 2976 #ifdef TARGET_NR_olduname 2977 case TARGET_NR_olduname: 2978 goto unimplemented; 2979 #endif 2980 #ifdef TARGET_NR_iopl 2981 case TARGET_NR_iopl: 2982 goto unimplemented; 2983 #endif 2984 case TARGET_NR_vhangup: 2985 ret = get_errno(vhangup()); 2986 break; 2987 #ifdef TARGET_NR_idle 2988 case TARGET_NR_idle: 2989 goto unimplemented; 2990 #endif 2991 #ifdef TARGET_NR_syscall 2992 case TARGET_NR_syscall: 2993 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 2994 break; 2995 #endif 2996 case TARGET_NR_wait4: 2997 { 2998 int status; 2999 target_long status_ptr = arg2; 3000 struct rusage rusage, *rusage_ptr; 3001 target_ulong target_rusage = arg4; 3002 if (target_rusage) 3003 rusage_ptr = &rusage; 3004 else 3005 rusage_ptr = NULL; 3006 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3007 if (!is_error(ret)) { 3008 if (status_ptr) 3009 tputl(status_ptr, status); 3010 if (target_rusage) { 3011 host_to_target_rusage(target_rusage, &rusage); 3012 } 3013 } 3014 } 3015 break; 3016 case TARGET_NR_swapoff: 3017 p = lock_user_string(arg1); 3018 ret = get_errno(swapoff(p)); 3019 unlock_user(p, arg1, 0); 3020 break; 3021 case TARGET_NR_sysinfo: 3022 { 3023 struct target_sysinfo *target_value; 3024 struct sysinfo value; 3025 ret = get_errno(sysinfo(&value)); 3026 if (!is_error(ret) && arg1) 3027 { 3028 /* ??? __put_user is probably wrong. */ 3029 lock_user_struct(target_value, arg1, 0); 3030 __put_user(value.uptime, &target_value->uptime); 3031 __put_user(value.loads[0], &target_value->loads[0]); 3032 __put_user(value.loads[1], &target_value->loads[1]); 3033 __put_user(value.loads[2], &target_value->loads[2]); 3034 __put_user(value.totalram, &target_value->totalram); 3035 __put_user(value.freeram, &target_value->freeram); 3036 __put_user(value.sharedram, &target_value->sharedram); 3037 __put_user(value.bufferram, &target_value->bufferram); 3038 __put_user(value.totalswap, &target_value->totalswap); 3039 __put_user(value.freeswap, &target_value->freeswap); 3040 __put_user(value.procs, &target_value->procs); 3041 __put_user(value.totalhigh, &target_value->totalhigh); 3042 __put_user(value.freehigh, &target_value->freehigh); 3043 __put_user(value.mem_unit, &target_value->mem_unit); 3044 unlock_user_struct(target_value, arg1, 1); 3045 } 3046 } 3047 break; 3048 case TARGET_NR_ipc: 3049 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3050 break; 3051 case TARGET_NR_fsync: 3052 ret = get_errno(fsync(arg1)); 3053 break; 3054 case TARGET_NR_clone: 3055 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3056 break; 3057 #ifdef __NR_exit_group 3058 /* new thread calls */ 3059 case TARGET_NR_exit_group: 3060 gdb_exit(cpu_env, arg1); 3061 ret = get_errno(exit_group(arg1)); 3062 break; 3063 #endif 3064 case TARGET_NR_setdomainname: 3065 p = lock_user_string(arg1); 3066 ret = get_errno(setdomainname(p, arg2)); 3067 unlock_user(p, arg1, 0); 3068 break; 3069 case TARGET_NR_uname: 3070 /* no need to transcode because we use the linux syscall */ 3071 { 3072 struct new_utsname * buf; 3073 3074 lock_user_struct(buf, arg1, 0); 3075 ret = get_errno(sys_uname(buf)); 3076 if (!is_error(ret)) { 3077 /* Overrite the native machine name with whatever is being 3078 emulated. */ 3079 strcpy (buf->machine, UNAME_MACHINE); 3080 /* Allow the user to override the reported release. */ 3081 if (qemu_uname_release && *qemu_uname_release) 3082 strcpy (buf->release, qemu_uname_release); 3083 } 3084 unlock_user_struct(buf, arg1, 1); 3085 } 3086 break; 3087 #ifdef TARGET_I386 3088 case TARGET_NR_modify_ldt: 3089 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3090 break; 3091 case TARGET_NR_vm86old: 3092 goto unimplemented; 3093 case TARGET_NR_vm86: 3094 ret = do_vm86(cpu_env, arg1, arg2); 3095 break; 3096 #endif 3097 case TARGET_NR_adjtimex: 3098 goto unimplemented; 3099 case TARGET_NR_create_module: 3100 case TARGET_NR_init_module: 3101 case TARGET_NR_delete_module: 3102 case TARGET_NR_get_kernel_syms: 3103 goto unimplemented; 3104 case TARGET_NR_quotactl: 3105 goto unimplemented; 3106 case TARGET_NR_getpgid: 3107 ret = get_errno(getpgid(arg1)); 3108 break; 3109 case TARGET_NR_fchdir: 3110 ret = get_errno(fchdir(arg1)); 3111 break; 3112 case TARGET_NR_bdflush: 3113 goto unimplemented; 3114 case TARGET_NR_sysfs: 3115 goto unimplemented; 3116 case TARGET_NR_personality: 3117 ret = get_errno(personality(arg1)); 3118 break; 3119 case TARGET_NR_afs_syscall: 3120 goto unimplemented; 3121 case TARGET_NR__llseek: 3122 { 3123 #if defined (__x86_64__) 3124 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3125 tput64(arg4, ret); 3126 #else 3127 int64_t res; 3128 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3129 tput64(arg4, res); 3130 #endif 3131 } 3132 break; 3133 case TARGET_NR_getdents: 3134 #if TARGET_LONG_SIZE != 4 3135 goto unimplemented; 3136 #warning not supported 3137 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3138 { 3139 struct target_dirent *target_dirp; 3140 struct dirent *dirp; 3141 long count = arg3; 3142 3143 dirp = malloc(count); 3144 if (!dirp) 3145 return -ENOMEM; 3146 3147 ret = get_errno(sys_getdents(arg1, dirp, count)); 3148 if (!is_error(ret)) { 3149 struct dirent *de; 3150 struct target_dirent *tde; 3151 int len = ret; 3152 int reclen, treclen; 3153 int count1, tnamelen; 3154 3155 count1 = 0; 3156 de = dirp; 3157 target_dirp = lock_user(arg2, count, 0); 3158 tde = target_dirp; 3159 while (len > 0) { 3160 reclen = de->d_reclen; 3161 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3162 tde->d_reclen = tswap16(treclen); 3163 tde->d_ino = tswapl(de->d_ino); 3164 tde->d_off = tswapl(de->d_off); 3165 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3166 if (tnamelen > 256) 3167 tnamelen = 256; 3168 /* XXX: may not be correct */ 3169 strncpy(tde->d_name, de->d_name, tnamelen); 3170 de = (struct dirent *)((char *)de + reclen); 3171 len -= reclen; 3172 tde = (struct dirent *)((char *)tde + treclen); 3173 count1 += treclen; 3174 } 3175 ret = count1; 3176 } 3177 unlock_user(target_dirp, arg2, ret); 3178 free(dirp); 3179 } 3180 #else 3181 { 3182 struct dirent *dirp; 3183 long count = arg3; 3184 3185 dirp = lock_user(arg2, count, 0); 3186 ret = get_errno(sys_getdents(arg1, dirp, count)); 3187 if (!is_error(ret)) { 3188 struct dirent *de; 3189 int len = ret; 3190 int reclen; 3191 de = dirp; 3192 while (len > 0) { 3193 reclen = de->d_reclen; 3194 if (reclen > len) 3195 break; 3196 de->d_reclen = tswap16(reclen); 3197 tswapls(&de->d_ino); 3198 tswapls(&de->d_off); 3199 de = (struct dirent *)((char *)de + reclen); 3200 len -= reclen; 3201 } 3202 } 3203 unlock_user(dirp, arg2, ret); 3204 } 3205 #endif 3206 break; 3207 #ifdef TARGET_NR_getdents64 3208 case TARGET_NR_getdents64: 3209 { 3210 struct dirent64 *dirp; 3211 long count = arg3; 3212 dirp = lock_user(arg2, count, 0); 3213 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3214 if (!is_error(ret)) { 3215 struct dirent64 *de; 3216 int len = ret; 3217 int reclen; 3218 de = dirp; 3219 while (len > 0) { 3220 reclen = de->d_reclen; 3221 if (reclen > len) 3222 break; 3223 de->d_reclen = tswap16(reclen); 3224 tswap64s(&de->d_ino); 3225 tswap64s(&de->d_off); 3226 de = (struct dirent64 *)((char *)de + reclen); 3227 len -= reclen; 3228 } 3229 } 3230 unlock_user(dirp, arg2, ret); 3231 } 3232 break; 3233 #endif /* TARGET_NR_getdents64 */ 3234 case TARGET_NR__newselect: 3235 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3236 break; 3237 case TARGET_NR_poll: 3238 { 3239 struct target_pollfd *target_pfd; 3240 unsigned int nfds = arg2; 3241 int timeout = arg3; 3242 struct pollfd *pfd; 3243 unsigned int i; 3244 3245 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3246 pfd = alloca(sizeof(struct pollfd) * nfds); 3247 for(i = 0; i < nfds; i++) { 3248 pfd[i].fd = tswap32(target_pfd[i].fd); 3249 pfd[i].events = tswap16(target_pfd[i].events); 3250 } 3251 ret = get_errno(poll(pfd, nfds, timeout)); 3252 if (!is_error(ret)) { 3253 for(i = 0; i < nfds; i++) { 3254 target_pfd[i].revents = tswap16(pfd[i].revents); 3255 } 3256 ret += nfds * (sizeof(struct target_pollfd) 3257 - sizeof(struct pollfd)); 3258 } 3259 unlock_user(target_pfd, arg1, ret); 3260 } 3261 break; 3262 case TARGET_NR_flock: 3263 /* NOTE: the flock constant seems to be the same for every 3264 Linux platform */ 3265 ret = get_errno(flock(arg1, arg2)); 3266 break; 3267 case TARGET_NR_readv: 3268 { 3269 int count = arg3; 3270 struct iovec *vec; 3271 3272 vec = alloca(count * sizeof(struct iovec)); 3273 lock_iovec(vec, arg2, count, 0); 3274 ret = get_errno(readv(arg1, vec, count)); 3275 unlock_iovec(vec, arg2, count, 1); 3276 } 3277 break; 3278 case TARGET_NR_writev: 3279 { 3280 int count = arg3; 3281 struct iovec *vec; 3282 3283 vec = alloca(count * sizeof(struct iovec)); 3284 lock_iovec(vec, arg2, count, 1); 3285 ret = get_errno(writev(arg1, vec, count)); 3286 unlock_iovec(vec, arg2, count, 0); 3287 } 3288 break; 3289 case TARGET_NR_getsid: 3290 ret = get_errno(getsid(arg1)); 3291 break; 3292 case TARGET_NR_fdatasync: 3293 ret = get_errno(fdatasync(arg1)); 3294 break; 3295 case TARGET_NR__sysctl: 3296 /* We don't implement this, but ENODIR is always a safe 3297 return value. */ 3298 return -ENOTDIR; 3299 case TARGET_NR_sched_setparam: 3300 { 3301 struct sched_param *target_schp; 3302 struct sched_param schp; 3303 3304 lock_user_struct(target_schp, arg2, 1); 3305 schp.sched_priority = tswap32(target_schp->sched_priority); 3306 unlock_user_struct(target_schp, arg2, 0); 3307 ret = get_errno(sched_setparam(arg1, &schp)); 3308 } 3309 break; 3310 case TARGET_NR_sched_getparam: 3311 { 3312 struct sched_param *target_schp; 3313 struct sched_param schp; 3314 ret = get_errno(sched_getparam(arg1, &schp)); 3315 if (!is_error(ret)) { 3316 lock_user_struct(target_schp, arg2, 0); 3317 target_schp->sched_priority = tswap32(schp.sched_priority); 3318 unlock_user_struct(target_schp, arg2, 1); 3319 } 3320 } 3321 break; 3322 case TARGET_NR_sched_setscheduler: 3323 { 3324 struct sched_param *target_schp; 3325 struct sched_param schp; 3326 lock_user_struct(target_schp, arg3, 1); 3327 schp.sched_priority = tswap32(target_schp->sched_priority); 3328 unlock_user_struct(target_schp, arg3, 0); 3329 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 3330 } 3331 break; 3332 case TARGET_NR_sched_getscheduler: 3333 ret = get_errno(sched_getscheduler(arg1)); 3334 break; 3335 case TARGET_NR_sched_yield: 3336 ret = get_errno(sched_yield()); 3337 break; 3338 case TARGET_NR_sched_get_priority_max: 3339 ret = get_errno(sched_get_priority_max(arg1)); 3340 break; 3341 case TARGET_NR_sched_get_priority_min: 3342 ret = get_errno(sched_get_priority_min(arg1)); 3343 break; 3344 case TARGET_NR_sched_rr_get_interval: 3345 { 3346 struct timespec ts; 3347 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 3348 if (!is_error(ret)) { 3349 host_to_target_timespec(arg2, &ts); 3350 } 3351 } 3352 break; 3353 case TARGET_NR_nanosleep: 3354 { 3355 struct timespec req, rem; 3356 target_to_host_timespec(&req, arg1); 3357 ret = get_errno(nanosleep(&req, &rem)); 3358 if (is_error(ret) && arg2) { 3359 host_to_target_timespec(arg2, &rem); 3360 } 3361 } 3362 break; 3363 case TARGET_NR_query_module: 3364 goto unimplemented; 3365 case TARGET_NR_nfsservctl: 3366 goto unimplemented; 3367 case TARGET_NR_prctl: 3368 goto unimplemented; 3369 #ifdef TARGET_NR_pread 3370 case TARGET_NR_pread: 3371 page_unprotect_range(arg2, arg3); 3372 p = lock_user(arg2, arg3, 0); 3373 ret = get_errno(pread(arg1, p, arg3, arg4)); 3374 unlock_user(p, arg2, ret); 3375 break; 3376 case TARGET_NR_pwrite: 3377 p = lock_user(arg2, arg3, 1); 3378 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 3379 unlock_user(p, arg2, 0); 3380 break; 3381 #endif 3382 case TARGET_NR_getcwd: 3383 p = lock_user(arg1, arg2, 0); 3384 ret = get_errno(sys_getcwd1(p, arg2)); 3385 unlock_user(p, arg1, ret); 3386 break; 3387 case TARGET_NR_capget: 3388 goto unimplemented; 3389 case TARGET_NR_capset: 3390 goto unimplemented; 3391 case TARGET_NR_sigaltstack: 3392 goto unimplemented; 3393 case TARGET_NR_sendfile: 3394 goto unimplemented; 3395 #ifdef TARGET_NR_getpmsg 3396 case TARGET_NR_getpmsg: 3397 goto unimplemented; 3398 #endif 3399 #ifdef TARGET_NR_putpmsg 3400 case TARGET_NR_putpmsg: 3401 goto unimplemented; 3402 #endif 3403 #ifdef TARGET_NR_vfork 3404 case TARGET_NR_vfork: 3405 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 3406 break; 3407 #endif 3408 #ifdef TARGET_NR_ugetrlimit 3409 case TARGET_NR_ugetrlimit: 3410 { 3411 struct rlimit rlim; 3412 ret = get_errno(getrlimit(arg1, &rlim)); 3413 if (!is_error(ret)) { 3414 struct target_rlimit *target_rlim; 3415 lock_user_struct(target_rlim, arg2, 0); 3416 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 3417 target_rlim->rlim_max = tswapl(rlim.rlim_max); 3418 unlock_user_struct(target_rlim, arg2, 1); 3419 } 3420 break; 3421 } 3422 #endif 3423 #ifdef TARGET_NR_truncate64 3424 case TARGET_NR_truncate64: 3425 p = lock_user_string(arg1); 3426 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 3427 unlock_user(p, arg1, 0); 3428 break; 3429 #endif 3430 #ifdef TARGET_NR_ftruncate64 3431 case TARGET_NR_ftruncate64: 3432 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 3433 break; 3434 #endif 3435 #ifdef TARGET_NR_stat64 3436 case TARGET_NR_stat64: 3437 p = lock_user_string(arg1); 3438 ret = get_errno(stat(path(p), &st)); 3439 unlock_user(p, arg1, 0); 3440 goto do_stat64; 3441 #endif 3442 #ifdef TARGET_NR_lstat64 3443 case TARGET_NR_lstat64: 3444 p = lock_user_string(arg1); 3445 ret = get_errno(lstat(path(p), &st)); 3446 unlock_user(p, arg1, 0); 3447 goto do_stat64; 3448 #endif 3449 #ifdef TARGET_NR_fstat64 3450 case TARGET_NR_fstat64: 3451 { 3452 ret = get_errno(fstat(arg1, &st)); 3453 do_stat64: 3454 if (!is_error(ret)) { 3455 #ifdef TARGET_ARM 3456 if (((CPUARMState *)cpu_env)->eabi) { 3457 struct target_eabi_stat64 *target_st; 3458 lock_user_struct(target_st, arg2, 1); 3459 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 3460 /* put_user is probably wrong. */ 3461 put_user(st.st_dev, &target_st->st_dev); 3462 put_user(st.st_ino, &target_st->st_ino); 3463 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3464 put_user(st.st_ino, &target_st->__st_ino); 3465 #endif 3466 put_user(st.st_mode, &target_st->st_mode); 3467 put_user(st.st_nlink, &target_st->st_nlink); 3468 put_user(st.st_uid, &target_st->st_uid); 3469 put_user(st.st_gid, &target_st->st_gid); 3470 put_user(st.st_rdev, &target_st->st_rdev); 3471 /* XXX: better use of kernel struct */ 3472 put_user(st.st_size, &target_st->st_size); 3473 put_user(st.st_blksize, &target_st->st_blksize); 3474 put_user(st.st_blocks, &target_st->st_blocks); 3475 put_user(st.st_atime, &target_st->target_st_atime); 3476 put_user(st.st_mtime, &target_st->target_st_mtime); 3477 put_user(st.st_ctime, &target_st->target_st_ctime); 3478 unlock_user_struct(target_st, arg2, 0); 3479 } else 3480 #endif 3481 { 3482 struct target_stat64 *target_st; 3483 lock_user_struct(target_st, arg2, 1); 3484 memset(target_st, 0, sizeof(struct target_stat64)); 3485 /* ??? put_user is probably wrong. */ 3486 put_user(st.st_dev, &target_st->st_dev); 3487 put_user(st.st_ino, &target_st->st_ino); 3488 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3489 put_user(st.st_ino, &target_st->__st_ino); 3490 #endif 3491 put_user(st.st_mode, &target_st->st_mode); 3492 put_user(st.st_nlink, &target_st->st_nlink); 3493 put_user(st.st_uid, &target_st->st_uid); 3494 put_user(st.st_gid, &target_st->st_gid); 3495 put_user(st.st_rdev, &target_st->st_rdev); 3496 /* XXX: better use of kernel struct */ 3497 put_user(st.st_size, &target_st->st_size); 3498 put_user(st.st_blksize, &target_st->st_blksize); 3499 put_user(st.st_blocks, &target_st->st_blocks); 3500 put_user(st.st_atime, &target_st->target_st_atime); 3501 put_user(st.st_mtime, &target_st->target_st_mtime); 3502 put_user(st.st_ctime, &target_st->target_st_ctime); 3503 unlock_user_struct(target_st, arg2, 0); 3504 } 3505 } 3506 } 3507 break; 3508 #endif 3509 #ifdef USE_UID16 3510 case TARGET_NR_lchown: 3511 p = lock_user_string(arg1); 3512 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 3513 unlock_user(p, arg1, 0); 3514 break; 3515 case TARGET_NR_getuid: 3516 ret = get_errno(high2lowuid(getuid())); 3517 break; 3518 case TARGET_NR_getgid: 3519 ret = get_errno(high2lowgid(getgid())); 3520 break; 3521 case TARGET_NR_geteuid: 3522 ret = get_errno(high2lowuid(geteuid())); 3523 break; 3524 case TARGET_NR_getegid: 3525 ret = get_errno(high2lowgid(getegid())); 3526 break; 3527 case TARGET_NR_setreuid: 3528 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 3529 break; 3530 case TARGET_NR_setregid: 3531 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 3532 break; 3533 case TARGET_NR_getgroups: 3534 { 3535 int gidsetsize = arg1; 3536 uint16_t *target_grouplist; 3537 gid_t *grouplist; 3538 int i; 3539 3540 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3541 ret = get_errno(getgroups(gidsetsize, grouplist)); 3542 if (!is_error(ret)) { 3543 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 3544 for(i = 0;i < gidsetsize; i++) 3545 target_grouplist[i] = tswap16(grouplist[i]); 3546 unlock_user(target_grouplist, arg2, gidsetsize * 2); 3547 } 3548 } 3549 break; 3550 case TARGET_NR_setgroups: 3551 { 3552 int gidsetsize = arg1; 3553 uint16_t *target_grouplist; 3554 gid_t *grouplist; 3555 int i; 3556 3557 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3558 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 3559 for(i = 0;i < gidsetsize; i++) 3560 grouplist[i] = tswap16(target_grouplist[i]); 3561 unlock_user(target_grouplist, arg2, 0); 3562 ret = get_errno(setgroups(gidsetsize, grouplist)); 3563 } 3564 break; 3565 case TARGET_NR_fchown: 3566 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 3567 break; 3568 #ifdef TARGET_NR_setresuid 3569 case TARGET_NR_setresuid: 3570 ret = get_errno(setresuid(low2highuid(arg1), 3571 low2highuid(arg2), 3572 low2highuid(arg3))); 3573 break; 3574 #endif 3575 #ifdef TARGET_NR_getresuid 3576 case TARGET_NR_getresuid: 3577 { 3578 uid_t ruid, euid, suid; 3579 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3580 if (!is_error(ret)) { 3581 tput16(arg1, tswap16(high2lowuid(ruid))); 3582 tput16(arg2, tswap16(high2lowuid(euid))); 3583 tput16(arg3, tswap16(high2lowuid(suid))); 3584 } 3585 } 3586 break; 3587 #endif 3588 #ifdef TARGET_NR_getresgid 3589 case TARGET_NR_setresgid: 3590 ret = get_errno(setresgid(low2highgid(arg1), 3591 low2highgid(arg2), 3592 low2highgid(arg3))); 3593 break; 3594 #endif 3595 #ifdef TARGET_NR_getresgid 3596 case TARGET_NR_getresgid: 3597 { 3598 gid_t rgid, egid, sgid; 3599 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3600 if (!is_error(ret)) { 3601 tput16(arg1, tswap16(high2lowgid(rgid))); 3602 tput16(arg2, tswap16(high2lowgid(egid))); 3603 tput16(arg3, tswap16(high2lowgid(sgid))); 3604 } 3605 } 3606 break; 3607 #endif 3608 case TARGET_NR_chown: 3609 p = lock_user_string(arg1); 3610 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 3611 unlock_user(p, arg1, 0); 3612 break; 3613 case TARGET_NR_setuid: 3614 ret = get_errno(setuid(low2highuid(arg1))); 3615 break; 3616 case TARGET_NR_setgid: 3617 ret = get_errno(setgid(low2highgid(arg1))); 3618 break; 3619 case TARGET_NR_setfsuid: 3620 ret = get_errno(setfsuid(arg1)); 3621 break; 3622 case TARGET_NR_setfsgid: 3623 ret = get_errno(setfsgid(arg1)); 3624 break; 3625 #endif /* USE_UID16 */ 3626 3627 #ifdef TARGET_NR_lchown32 3628 case TARGET_NR_lchown32: 3629 p = lock_user_string(arg1); 3630 ret = get_errno(lchown(p, arg2, arg3)); 3631 unlock_user(p, arg1, 0); 3632 break; 3633 #endif 3634 #ifdef TARGET_NR_getuid32 3635 case TARGET_NR_getuid32: 3636 ret = get_errno(getuid()); 3637 break; 3638 #endif 3639 #ifdef TARGET_NR_getgid32 3640 case TARGET_NR_getgid32: 3641 ret = get_errno(getgid()); 3642 break; 3643 #endif 3644 #ifdef TARGET_NR_geteuid32 3645 case TARGET_NR_geteuid32: 3646 ret = get_errno(geteuid()); 3647 break; 3648 #endif 3649 #ifdef TARGET_NR_getegid32 3650 case TARGET_NR_getegid32: 3651 ret = get_errno(getegid()); 3652 break; 3653 #endif 3654 #ifdef TARGET_NR_setreuid32 3655 case TARGET_NR_setreuid32: 3656 ret = get_errno(setreuid(arg1, arg2)); 3657 break; 3658 #endif 3659 #ifdef TARGET_NR_setregid32 3660 case TARGET_NR_setregid32: 3661 ret = get_errno(setregid(arg1, arg2)); 3662 break; 3663 #endif 3664 #ifdef TARGET_NR_getgroups32 3665 case TARGET_NR_getgroups32: 3666 { 3667 int gidsetsize = arg1; 3668 uint32_t *target_grouplist; 3669 gid_t *grouplist; 3670 int i; 3671 3672 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3673 ret = get_errno(getgroups(gidsetsize, grouplist)); 3674 if (!is_error(ret)) { 3675 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 3676 for(i = 0;i < gidsetsize; i++) 3677 target_grouplist[i] = tswap32(grouplist[i]); 3678 unlock_user(target_grouplist, arg2, gidsetsize * 4); 3679 } 3680 } 3681 break; 3682 #endif 3683 #ifdef TARGET_NR_setgroups32 3684 case TARGET_NR_setgroups32: 3685 { 3686 int gidsetsize = arg1; 3687 uint32_t *target_grouplist; 3688 gid_t *grouplist; 3689 int i; 3690 3691 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3692 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 3693 for(i = 0;i < gidsetsize; i++) 3694 grouplist[i] = tswap32(target_grouplist[i]); 3695 unlock_user(target_grouplist, arg2, 0); 3696 ret = get_errno(setgroups(gidsetsize, grouplist)); 3697 } 3698 break; 3699 #endif 3700 #ifdef TARGET_NR_fchown32 3701 case TARGET_NR_fchown32: 3702 ret = get_errno(fchown(arg1, arg2, arg3)); 3703 break; 3704 #endif 3705 #ifdef TARGET_NR_setresuid32 3706 case TARGET_NR_setresuid32: 3707 ret = get_errno(setresuid(arg1, arg2, arg3)); 3708 break; 3709 #endif 3710 #ifdef TARGET_NR_getresuid32 3711 case TARGET_NR_getresuid32: 3712 { 3713 uid_t ruid, euid, suid; 3714 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3715 if (!is_error(ret)) { 3716 tput32(arg1, tswap32(ruid)); 3717 tput32(arg2, tswap32(euid)); 3718 tput32(arg3, tswap32(suid)); 3719 } 3720 } 3721 break; 3722 #endif 3723 #ifdef TARGET_NR_setresgid32 3724 case TARGET_NR_setresgid32: 3725 ret = get_errno(setresgid(arg1, arg2, arg3)); 3726 break; 3727 #endif 3728 #ifdef TARGET_NR_getresgid32 3729 case TARGET_NR_getresgid32: 3730 { 3731 gid_t rgid, egid, sgid; 3732 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3733 if (!is_error(ret)) { 3734 tput32(arg1, tswap32(rgid)); 3735 tput32(arg2, tswap32(egid)); 3736 tput32(arg3, tswap32(sgid)); 3737 } 3738 } 3739 break; 3740 #endif 3741 #ifdef TARGET_NR_chown32 3742 case TARGET_NR_chown32: 3743 p = lock_user_string(arg1); 3744 ret = get_errno(chown(p, arg2, arg3)); 3745 unlock_user(p, arg1, 0); 3746 break; 3747 #endif 3748 #ifdef TARGET_NR_setuid32 3749 case TARGET_NR_setuid32: 3750 ret = get_errno(setuid(arg1)); 3751 break; 3752 #endif 3753 #ifdef TARGET_NR_setgid32 3754 case TARGET_NR_setgid32: 3755 ret = get_errno(setgid(arg1)); 3756 break; 3757 #endif 3758 #ifdef TARGET_NR_setfsuid32 3759 case TARGET_NR_setfsuid32: 3760 ret = get_errno(setfsuid(arg1)); 3761 break; 3762 #endif 3763 #ifdef TARGET_NR_setfsgid32 3764 case TARGET_NR_setfsgid32: 3765 ret = get_errno(setfsgid(arg1)); 3766 break; 3767 #endif 3768 3769 case TARGET_NR_pivot_root: 3770 goto unimplemented; 3771 #ifdef TARGET_NR_mincore 3772 case TARGET_NR_mincore: 3773 goto unimplemented; 3774 #endif 3775 #ifdef TARGET_NR_madvise 3776 case TARGET_NR_madvise: 3777 /* A straight passthrough may not be safe because qemu sometimes 3778 turns private flie-backed mappings into anonymous mappings. 3779 This will break MADV_DONTNEED. 3780 This is a hint, so ignoring and returning success is ok. */ 3781 ret = get_errno(0); 3782 break; 3783 #endif 3784 #if TARGET_LONG_BITS == 32 3785 case TARGET_NR_fcntl64: 3786 { 3787 struct flock64 fl; 3788 struct target_flock64 *target_fl; 3789 #ifdef TARGET_ARM 3790 struct target_eabi_flock64 *target_efl; 3791 #endif 3792 3793 switch(arg2) { 3794 case F_GETLK64: 3795 ret = get_errno(fcntl(arg1, arg2, &fl)); 3796 if (ret == 0) { 3797 #ifdef TARGET_ARM 3798 if (((CPUARMState *)cpu_env)->eabi) { 3799 lock_user_struct(target_efl, arg3, 0); 3800 target_efl->l_type = tswap16(fl.l_type); 3801 target_efl->l_whence = tswap16(fl.l_whence); 3802 target_efl->l_start = tswap64(fl.l_start); 3803 target_efl->l_len = tswap64(fl.l_len); 3804 target_efl->l_pid = tswapl(fl.l_pid); 3805 unlock_user_struct(target_efl, arg3, 1); 3806 } else 3807 #endif 3808 { 3809 lock_user_struct(target_fl, arg3, 0); 3810 target_fl->l_type = tswap16(fl.l_type); 3811 target_fl->l_whence = tswap16(fl.l_whence); 3812 target_fl->l_start = tswap64(fl.l_start); 3813 target_fl->l_len = tswap64(fl.l_len); 3814 target_fl->l_pid = tswapl(fl.l_pid); 3815 unlock_user_struct(target_fl, arg3, 1); 3816 } 3817 } 3818 break; 3819 3820 case F_SETLK64: 3821 case F_SETLKW64: 3822 #ifdef TARGET_ARM 3823 if (((CPUARMState *)cpu_env)->eabi) { 3824 lock_user_struct(target_efl, arg3, 1); 3825 fl.l_type = tswap16(target_efl->l_type); 3826 fl.l_whence = tswap16(target_efl->l_whence); 3827 fl.l_start = tswap64(target_efl->l_start); 3828 fl.l_len = tswap64(target_efl->l_len); 3829 fl.l_pid = tswapl(target_efl->l_pid); 3830 unlock_user_struct(target_efl, arg3, 0); 3831 } else 3832 #endif 3833 { 3834 lock_user_struct(target_fl, arg3, 1); 3835 fl.l_type = tswap16(target_fl->l_type); 3836 fl.l_whence = tswap16(target_fl->l_whence); 3837 fl.l_start = tswap64(target_fl->l_start); 3838 fl.l_len = tswap64(target_fl->l_len); 3839 fl.l_pid = tswapl(target_fl->l_pid); 3840 unlock_user_struct(target_fl, arg3, 0); 3841 } 3842 ret = get_errno(fcntl(arg1, arg2, &fl)); 3843 break; 3844 default: 3845 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 3846 break; 3847 } 3848 break; 3849 } 3850 #endif 3851 #ifdef TARGET_NR_cacheflush 3852 case TARGET_NR_cacheflush: 3853 /* self-modifying code is handled automatically, so nothing needed */ 3854 ret = 0; 3855 break; 3856 #endif 3857 #ifdef TARGET_NR_security 3858 case TARGET_NR_security: 3859 goto unimplemented; 3860 #endif 3861 #ifdef TARGET_NR_getpagesize 3862 case TARGET_NR_getpagesize: 3863 ret = TARGET_PAGE_SIZE; 3864 break; 3865 #endif 3866 case TARGET_NR_gettid: 3867 ret = get_errno(gettid()); 3868 break; 3869 case TARGET_NR_readahead: 3870 goto unimplemented; 3871 #ifdef TARGET_NR_setxattr 3872 case TARGET_NR_setxattr: 3873 case TARGET_NR_lsetxattr: 3874 case TARGET_NR_fsetxattr: 3875 case TARGET_NR_getxattr: 3876 case TARGET_NR_lgetxattr: 3877 case TARGET_NR_fgetxattr: 3878 case TARGET_NR_listxattr: 3879 case TARGET_NR_llistxattr: 3880 case TARGET_NR_flistxattr: 3881 case TARGET_NR_removexattr: 3882 case TARGET_NR_lremovexattr: 3883 case TARGET_NR_fremovexattr: 3884 goto unimplemented_nowarn; 3885 #endif 3886 #ifdef TARGET_NR_set_thread_area 3887 case TARGET_NR_set_thread_area: 3888 case TARGET_NR_get_thread_area: 3889 goto unimplemented_nowarn; 3890 #endif 3891 #ifdef TARGET_NR_getdomainname 3892 case TARGET_NR_getdomainname: 3893 goto unimplemented_nowarn; 3894 #endif 3895 default: 3896 unimplemented: 3897 gemu_log("qemu: Unsupported syscall: %d\n", num); 3898 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_set_thread_area) || defined(TARGET_NR_getdomainname) 3899 unimplemented_nowarn: 3900 #endif 3901 ret = -ENOSYS; 3902 break; 3903 } 3904 fail: 3905 #ifdef DEBUG 3906 gemu_log(" = %ld\n", ret); 3907 #endif 3908 return ret; 3909 } 3910 3911