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/ipc.h> 32 #include <sys/msg.h> 33 #include <sys/wait.h> 34 #include <sys/time.h> 35 #include <sys/stat.h> 36 #include <sys/mount.h> 37 #include <sys/prctl.h> 38 #include <sys/resource.h> 39 #include <sys/mman.h> 40 #include <sys/swap.h> 41 #include <signal.h> 42 #include <sched.h> 43 #include <sys/socket.h> 44 #include <sys/uio.h> 45 #include <sys/poll.h> 46 #include <sys/times.h> 47 #include <sys/shm.h> 48 #include <sys/sem.h> 49 #include <sys/statfs.h> 50 #include <utime.h> 51 #include <sys/sysinfo.h> 52 //#include <sys/user.h> 53 #include <netinet/ip.h> 54 #include <netinet/tcp.h> 55 56 #define termios host_termios 57 #define winsize host_winsize 58 #define termio host_termio 59 #define sgttyb host_sgttyb /* same as target */ 60 #define tchars host_tchars /* same as target */ 61 #define ltchars host_ltchars /* same as target */ 62 63 #include <linux/termios.h> 64 #include <linux/unistd.h> 65 #include <linux/utsname.h> 66 #include <linux/cdrom.h> 67 #include <linux/hdreg.h> 68 #include <linux/soundcard.h> 69 #include <linux/dirent.h> 70 #include <linux/kd.h> 71 72 #include "qemu.h" 73 74 //#define DEBUG 75 76 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \ 77 || defined(TARGET_M68K) 78 /* 16 bit uid wrappers emulation */ 79 #define USE_UID16 80 #endif 81 82 //#include <linux/msdos_fs.h> 83 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 84 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 85 86 87 #undef _syscall0 88 #undef _syscall1 89 #undef _syscall2 90 #undef _syscall3 91 #undef _syscall4 92 #undef _syscall5 93 #undef _syscall6 94 95 #define _syscall0(type,name) \ 96 type name (void) \ 97 { \ 98 return syscall(__NR_##name); \ 99 } 100 101 #define _syscall1(type,name,type1,arg1) \ 102 type name (type1 arg1) \ 103 { \ 104 return syscall(__NR_##name, arg1); \ 105 } 106 107 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 108 type name (type1 arg1,type2 arg2) \ 109 { \ 110 return syscall(__NR_##name, arg1, arg2); \ 111 } 112 113 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 114 type name (type1 arg1,type2 arg2,type3 arg3) \ 115 { \ 116 return syscall(__NR_##name, arg1, arg2, arg3); \ 117 } 118 119 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 120 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 121 { \ 122 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 123 } 124 125 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 126 type5,arg5) \ 127 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 128 { \ 129 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 130 } 131 132 133 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 134 type5,arg5,type6,arg6) \ 135 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ 136 { \ 137 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 138 } 139 140 141 #define __NR_sys_uname __NR_uname 142 #define __NR_sys_getcwd1 __NR_getcwd 143 #define __NR_sys_getdents __NR_getdents 144 #define __NR_sys_getdents64 __NR_getdents64 145 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 146 #define __NR_sys_syslog __NR_syslog 147 148 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 149 #define __NR__llseek __NR_lseek 150 #endif 151 152 #ifdef __NR_gettid 153 _syscall0(int, gettid) 154 #else 155 static int gettid(void) { 156 return -ENOSYS; 157 } 158 #endif 159 _syscall1(int,sys_uname,struct new_utsname *,buf) 160 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 161 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 162 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 163 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 164 loff_t *, res, uint, wh); 165 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 166 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 167 #ifdef __NR_exit_group 168 _syscall1(int,exit_group,int,error_code) 169 #endif 170 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 171 _syscall1(int,set_tid_address,int *,tidptr) 172 #endif 173 174 extern int personality(int); 175 extern int flock(int, int); 176 extern int setfsuid(int); 177 extern int setfsgid(int); 178 extern int setresuid(uid_t, uid_t, uid_t); 179 extern int getresuid(uid_t *, uid_t *, uid_t *); 180 extern int setresgid(gid_t, gid_t, gid_t); 181 extern int getresgid(gid_t *, gid_t *, gid_t *); 182 extern int setgroups(int, gid_t *); 183 184 static inline long get_errno(long ret) 185 { 186 if (ret == -1) 187 return -errno; 188 else 189 return ret; 190 } 191 192 static inline int is_error(long ret) 193 { 194 return (unsigned long)ret >= (unsigned long)(-4096); 195 } 196 197 static target_ulong target_brk; 198 static target_ulong target_original_brk; 199 200 void target_set_brk(target_ulong new_brk) 201 { 202 target_original_brk = target_brk = new_brk; 203 } 204 205 long do_brk(target_ulong new_brk) 206 { 207 target_ulong brk_page; 208 long mapped_addr; 209 int new_alloc_size; 210 211 if (!new_brk) 212 return target_brk; 213 if (new_brk < target_original_brk) 214 return -ENOMEM; 215 216 brk_page = HOST_PAGE_ALIGN(target_brk); 217 218 /* If the new brk is less than this, set it and we're done... */ 219 if (new_brk < brk_page) { 220 target_brk = new_brk; 221 return target_brk; 222 } 223 224 /* We need to allocate more memory after the brk... */ 225 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 226 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 227 PROT_READ|PROT_WRITE, 228 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 229 if (is_error(mapped_addr)) { 230 return mapped_addr; 231 } else { 232 target_brk = new_brk; 233 return target_brk; 234 } 235 } 236 237 static inline fd_set *target_to_host_fds(fd_set *fds, 238 target_long *target_fds, int n) 239 { 240 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 241 return (fd_set *)target_fds; 242 #else 243 int i, b; 244 if (target_fds) { 245 FD_ZERO(fds); 246 for(i = 0;i < n; i++) { 247 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 248 (i & (TARGET_LONG_BITS - 1))) & 1; 249 if (b) 250 FD_SET(i, fds); 251 } 252 return fds; 253 } else { 254 return NULL; 255 } 256 #endif 257 } 258 259 static inline void host_to_target_fds(target_long *target_fds, 260 fd_set *fds, int n) 261 { 262 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 263 /* nothing to do */ 264 #else 265 int i, nw, j, k; 266 target_long v; 267 268 if (target_fds) { 269 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS; 270 k = 0; 271 for(i = 0;i < nw; i++) { 272 v = 0; 273 for(j = 0; j < TARGET_LONG_BITS; j++) { 274 v |= ((FD_ISSET(k, fds) != 0) << j); 275 k++; 276 } 277 target_fds[i] = tswapl(v); 278 } 279 } 280 #endif 281 } 282 283 #if defined(__alpha__) 284 #define HOST_HZ 1024 285 #else 286 #define HOST_HZ 100 287 #endif 288 289 static inline long host_to_target_clock_t(long ticks) 290 { 291 #if HOST_HZ == TARGET_HZ 292 return ticks; 293 #else 294 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 295 #endif 296 } 297 298 static inline void host_to_target_rusage(target_ulong target_addr, 299 const struct rusage *rusage) 300 { 301 struct target_rusage *target_rusage; 302 303 lock_user_struct(target_rusage, target_addr, 0); 304 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 305 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 306 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 307 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 308 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 309 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 310 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 311 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 312 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 313 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 314 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 315 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 316 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 317 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 318 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 319 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 320 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 321 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 322 unlock_user_struct(target_rusage, target_addr, 1); 323 } 324 325 static inline void target_to_host_timeval(struct timeval *tv, 326 target_ulong target_addr) 327 { 328 struct target_timeval *target_tv; 329 330 lock_user_struct(target_tv, target_addr, 1); 331 tv->tv_sec = tswapl(target_tv->tv_sec); 332 tv->tv_usec = tswapl(target_tv->tv_usec); 333 unlock_user_struct(target_tv, target_addr, 0); 334 } 335 336 static inline void host_to_target_timeval(target_ulong target_addr, 337 const struct timeval *tv) 338 { 339 struct target_timeval *target_tv; 340 341 lock_user_struct(target_tv, target_addr, 0); 342 target_tv->tv_sec = tswapl(tv->tv_sec); 343 target_tv->tv_usec = tswapl(tv->tv_usec); 344 unlock_user_struct(target_tv, target_addr, 1); 345 } 346 347 348 static long do_select(long n, 349 target_ulong rfd_p, target_ulong wfd_p, 350 target_ulong efd_p, target_ulong target_tv) 351 { 352 fd_set rfds, wfds, efds; 353 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 354 target_long *target_rfds, *target_wfds, *target_efds; 355 struct timeval tv, *tv_ptr; 356 long ret; 357 int ok; 358 359 if (rfd_p) { 360 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1); 361 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 362 } else { 363 target_rfds = NULL; 364 rfds_ptr = NULL; 365 } 366 if (wfd_p) { 367 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1); 368 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 369 } else { 370 target_wfds = NULL; 371 wfds_ptr = NULL; 372 } 373 if (efd_p) { 374 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1); 375 efds_ptr = target_to_host_fds(&efds, target_efds, n); 376 } else { 377 target_efds = NULL; 378 efds_ptr = NULL; 379 } 380 381 if (target_tv) { 382 target_to_host_timeval(&tv, target_tv); 383 tv_ptr = &tv; 384 } else { 385 tv_ptr = NULL; 386 } 387 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 388 ok = !is_error(ret); 389 390 if (ok) { 391 host_to_target_fds(target_rfds, rfds_ptr, n); 392 host_to_target_fds(target_wfds, wfds_ptr, n); 393 host_to_target_fds(target_efds, efds_ptr, n); 394 395 if (target_tv) { 396 host_to_target_timeval(target_tv, &tv); 397 } 398 } 399 if (target_rfds) 400 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0); 401 if (target_wfds) 402 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0); 403 if (target_efds) 404 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0); 405 406 return ret; 407 } 408 409 static inline void target_to_host_sockaddr(struct sockaddr *addr, 410 target_ulong target_addr, 411 socklen_t len) 412 { 413 struct target_sockaddr *target_saddr; 414 415 target_saddr = lock_user(target_addr, len, 1); 416 memcpy(addr, target_saddr, len); 417 addr->sa_family = tswap16(target_saddr->sa_family); 418 unlock_user(target_saddr, target_addr, 0); 419 } 420 421 static inline void host_to_target_sockaddr(target_ulong target_addr, 422 struct sockaddr *addr, 423 socklen_t len) 424 { 425 struct target_sockaddr *target_saddr; 426 427 target_saddr = lock_user(target_addr, len, 0); 428 memcpy(target_saddr, addr, len); 429 target_saddr->sa_family = tswap16(addr->sa_family); 430 unlock_user(target_saddr, target_addr, len); 431 } 432 433 /* ??? Should this also swap msgh->name? */ 434 static inline void target_to_host_cmsg(struct msghdr *msgh, 435 struct target_msghdr *target_msgh) 436 { 437 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 438 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 439 socklen_t space = 0; 440 441 while (cmsg && target_cmsg) { 442 void *data = CMSG_DATA(cmsg); 443 void *target_data = TARGET_CMSG_DATA(target_cmsg); 444 445 int len = tswapl(target_cmsg->cmsg_len) 446 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 447 448 space += CMSG_SPACE(len); 449 if (space > msgh->msg_controllen) { 450 space -= CMSG_SPACE(len); 451 gemu_log("Host cmsg overflow\n"); 452 break; 453 } 454 455 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 456 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 457 cmsg->cmsg_len = CMSG_LEN(len); 458 459 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 460 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 461 memcpy(data, target_data, len); 462 } else { 463 int *fd = (int *)data; 464 int *target_fd = (int *)target_data; 465 int i, numfds = len / sizeof(int); 466 467 for (i = 0; i < numfds; i++) 468 fd[i] = tswap32(target_fd[i]); 469 } 470 471 cmsg = CMSG_NXTHDR(msgh, cmsg); 472 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 473 } 474 475 msgh->msg_controllen = space; 476 } 477 478 /* ??? Should this also swap msgh->name? */ 479 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 480 struct msghdr *msgh) 481 { 482 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 483 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 484 socklen_t space = 0; 485 486 while (cmsg && target_cmsg) { 487 void *data = CMSG_DATA(cmsg); 488 void *target_data = TARGET_CMSG_DATA(target_cmsg); 489 490 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 491 492 space += TARGET_CMSG_SPACE(len); 493 if (space > tswapl(target_msgh->msg_controllen)) { 494 space -= TARGET_CMSG_SPACE(len); 495 gemu_log("Target cmsg overflow\n"); 496 break; 497 } 498 499 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 500 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 501 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 502 503 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 504 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 505 memcpy(target_data, data, len); 506 } else { 507 int *fd = (int *)data; 508 int *target_fd = (int *)target_data; 509 int i, numfds = len / sizeof(int); 510 511 for (i = 0; i < numfds; i++) 512 target_fd[i] = tswap32(fd[i]); 513 } 514 515 cmsg = CMSG_NXTHDR(msgh, cmsg); 516 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 517 } 518 519 msgh->msg_controllen = tswapl(space); 520 } 521 522 static long do_setsockopt(int sockfd, int level, int optname, 523 target_ulong optval, socklen_t optlen) 524 { 525 int val, ret; 526 527 switch(level) { 528 case SOL_TCP: 529 /* TCP options all take an 'int' value. */ 530 if (optlen < sizeof(uint32_t)) 531 return -EINVAL; 532 533 val = tget32(optval); 534 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 535 break; 536 case SOL_IP: 537 switch(optname) { 538 case IP_TOS: 539 case IP_TTL: 540 case IP_HDRINCL: 541 case IP_ROUTER_ALERT: 542 case IP_RECVOPTS: 543 case IP_RETOPTS: 544 case IP_PKTINFO: 545 case IP_MTU_DISCOVER: 546 case IP_RECVERR: 547 case IP_RECVTOS: 548 #ifdef IP_FREEBIND 549 case IP_FREEBIND: 550 #endif 551 case IP_MULTICAST_TTL: 552 case IP_MULTICAST_LOOP: 553 val = 0; 554 if (optlen >= sizeof(uint32_t)) { 555 val = tget32(optval); 556 } else if (optlen >= 1) { 557 val = tget8(optval); 558 } 559 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 560 break; 561 default: 562 goto unimplemented; 563 } 564 break; 565 case TARGET_SOL_SOCKET: 566 switch (optname) { 567 /* Options with 'int' argument. */ 568 case TARGET_SO_DEBUG: 569 optname = SO_DEBUG; 570 break; 571 case TARGET_SO_REUSEADDR: 572 optname = SO_REUSEADDR; 573 break; 574 case TARGET_SO_TYPE: 575 optname = SO_TYPE; 576 break; 577 case TARGET_SO_ERROR: 578 optname = SO_ERROR; 579 break; 580 case TARGET_SO_DONTROUTE: 581 optname = SO_DONTROUTE; 582 break; 583 case TARGET_SO_BROADCAST: 584 optname = SO_BROADCAST; 585 break; 586 case TARGET_SO_SNDBUF: 587 optname = SO_SNDBUF; 588 break; 589 case TARGET_SO_RCVBUF: 590 optname = SO_RCVBUF; 591 break; 592 case TARGET_SO_KEEPALIVE: 593 optname = SO_KEEPALIVE; 594 break; 595 case TARGET_SO_OOBINLINE: 596 optname = SO_OOBINLINE; 597 break; 598 case TARGET_SO_NO_CHECK: 599 optname = SO_NO_CHECK; 600 break; 601 case TARGET_SO_PRIORITY: 602 optname = SO_PRIORITY; 603 break; 604 #ifdef SO_BSDCOMPAT 605 case TARGET_SO_BSDCOMPAT: 606 optname = SO_BSDCOMPAT; 607 break; 608 #endif 609 case TARGET_SO_PASSCRED: 610 optname = SO_PASSCRED; 611 break; 612 case TARGET_SO_TIMESTAMP: 613 optname = SO_TIMESTAMP; 614 break; 615 case TARGET_SO_RCVLOWAT: 616 optname = SO_RCVLOWAT; 617 break; 618 case TARGET_SO_RCVTIMEO: 619 optname = SO_RCVTIMEO; 620 break; 621 case TARGET_SO_SNDTIMEO: 622 optname = SO_SNDTIMEO; 623 break; 624 break; 625 default: 626 goto unimplemented; 627 } 628 if (optlen < sizeof(uint32_t)) 629 return -EINVAL; 630 631 val = tget32(optval); 632 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 633 break; 634 default: 635 unimplemented: 636 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 637 ret = -ENOSYS; 638 } 639 return ret; 640 } 641 642 static long do_getsockopt(int sockfd, int level, int optname, 643 target_ulong optval, target_ulong optlen) 644 { 645 int len, lv, val, ret; 646 647 switch(level) { 648 case TARGET_SOL_SOCKET: 649 level = SOL_SOCKET; 650 switch (optname) { 651 case TARGET_SO_LINGER: 652 case TARGET_SO_RCVTIMEO: 653 case TARGET_SO_SNDTIMEO: 654 case TARGET_SO_PEERCRED: 655 case TARGET_SO_PEERNAME: 656 /* These don't just return a single integer */ 657 goto unimplemented; 658 default: 659 goto int_case; 660 } 661 break; 662 case SOL_TCP: 663 /* TCP options all take an 'int' value. */ 664 int_case: 665 len = tget32(optlen); 666 if (len < 0) 667 return -EINVAL; 668 lv = sizeof(int); 669 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 670 if (ret < 0) 671 return ret; 672 val = tswap32(val); 673 if (len > lv) 674 len = lv; 675 if (len == 4) 676 tput32(optval, val); 677 else 678 tput8(optval, val); 679 tput32(optlen, len); 680 break; 681 case SOL_IP: 682 switch(optname) { 683 case IP_TOS: 684 case IP_TTL: 685 case IP_HDRINCL: 686 case IP_ROUTER_ALERT: 687 case IP_RECVOPTS: 688 case IP_RETOPTS: 689 case IP_PKTINFO: 690 case IP_MTU_DISCOVER: 691 case IP_RECVERR: 692 case IP_RECVTOS: 693 #ifdef IP_FREEBIND 694 case IP_FREEBIND: 695 #endif 696 case IP_MULTICAST_TTL: 697 case IP_MULTICAST_LOOP: 698 len = tget32(optlen); 699 if (len < 0) 700 return -EINVAL; 701 lv = sizeof(int); 702 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 703 if (ret < 0) 704 return ret; 705 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 706 len = 1; 707 tput32(optlen, len); 708 tput8(optval, val); 709 } else { 710 if (len > sizeof(int)) 711 len = sizeof(int); 712 tput32(optlen, len); 713 tput32(optval, val); 714 } 715 break; 716 default: 717 goto unimplemented; 718 } 719 break; 720 default: 721 unimplemented: 722 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 723 level, optname); 724 ret = -ENOSYS; 725 break; 726 } 727 return ret; 728 } 729 730 static void lock_iovec(struct iovec *vec, target_ulong target_addr, 731 int count, int copy) 732 { 733 struct target_iovec *target_vec; 734 target_ulong base; 735 int i; 736 737 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 738 for(i = 0;i < count; i++) { 739 base = tswapl(target_vec[i].iov_base); 740 vec[i].iov_len = tswapl(target_vec[i].iov_len); 741 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 742 } 743 unlock_user (target_vec, target_addr, 0); 744 } 745 746 static void unlock_iovec(struct iovec *vec, target_ulong target_addr, 747 int count, int copy) 748 { 749 struct target_iovec *target_vec; 750 target_ulong base; 751 int i; 752 753 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 754 for(i = 0;i < count; i++) { 755 base = tswapl(target_vec[i].iov_base); 756 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 757 } 758 unlock_user (target_vec, target_addr, 0); 759 } 760 761 static long do_socket(int domain, int type, int protocol) 762 { 763 #if defined(TARGET_MIPS) 764 switch(type) { 765 case TARGET_SOCK_DGRAM: 766 type = SOCK_DGRAM; 767 break; 768 case TARGET_SOCK_STREAM: 769 type = SOCK_STREAM; 770 break; 771 case TARGET_SOCK_RAW: 772 type = SOCK_RAW; 773 break; 774 case TARGET_SOCK_RDM: 775 type = SOCK_RDM; 776 break; 777 case TARGET_SOCK_SEQPACKET: 778 type = SOCK_SEQPACKET; 779 break; 780 case TARGET_SOCK_PACKET: 781 type = SOCK_PACKET; 782 break; 783 } 784 #endif 785 return get_errno(socket(domain, type, protocol)); 786 } 787 788 static long do_bind(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(bind(sockfd, addr, addrlen)); 795 } 796 797 static long do_connect(int sockfd, target_ulong target_addr, 798 socklen_t addrlen) 799 { 800 void *addr = alloca(addrlen); 801 802 target_to_host_sockaddr(addr, target_addr, addrlen); 803 return get_errno(connect(sockfd, addr, addrlen)); 804 } 805 806 static long do_sendrecvmsg(int fd, target_ulong target_msg, 807 int flags, int send) 808 { 809 long ret; 810 struct target_msghdr *msgp; 811 struct msghdr msg; 812 int count; 813 struct iovec *vec; 814 target_ulong target_vec; 815 816 lock_user_struct(msgp, target_msg, 1); 817 if (msgp->msg_name) { 818 msg.msg_namelen = tswap32(msgp->msg_namelen); 819 msg.msg_name = alloca(msg.msg_namelen); 820 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 821 msg.msg_namelen); 822 } else { 823 msg.msg_name = NULL; 824 msg.msg_namelen = 0; 825 } 826 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 827 msg.msg_control = alloca(msg.msg_controllen); 828 msg.msg_flags = tswap32(msgp->msg_flags); 829 830 count = tswapl(msgp->msg_iovlen); 831 vec = alloca(count * sizeof(struct iovec)); 832 target_vec = tswapl(msgp->msg_iov); 833 lock_iovec(vec, target_vec, count, send); 834 msg.msg_iovlen = count; 835 msg.msg_iov = vec; 836 837 if (send) { 838 target_to_host_cmsg(&msg, msgp); 839 ret = get_errno(sendmsg(fd, &msg, flags)); 840 } else { 841 ret = get_errno(recvmsg(fd, &msg, flags)); 842 if (!is_error(ret)) 843 host_to_target_cmsg(msgp, &msg); 844 } 845 unlock_iovec(vec, target_vec, count, !send); 846 return ret; 847 } 848 849 static long do_accept(int fd, target_ulong target_addr, 850 target_ulong target_addrlen) 851 { 852 socklen_t addrlen = tget32(target_addrlen); 853 void *addr = alloca(addrlen); 854 long ret; 855 856 ret = get_errno(accept(fd, addr, &addrlen)); 857 if (!is_error(ret)) { 858 host_to_target_sockaddr(target_addr, addr, addrlen); 859 tput32(target_addrlen, addrlen); 860 } 861 return ret; 862 } 863 864 static long do_getpeername(int fd, target_ulong target_addr, 865 target_ulong target_addrlen) 866 { 867 socklen_t addrlen = tget32(target_addrlen); 868 void *addr = alloca(addrlen); 869 long ret; 870 871 ret = get_errno(getpeername(fd, addr, &addrlen)); 872 if (!is_error(ret)) { 873 host_to_target_sockaddr(target_addr, addr, addrlen); 874 tput32(target_addrlen, addrlen); 875 } 876 return ret; 877 } 878 879 static long do_getsockname(int fd, target_ulong target_addr, 880 target_ulong target_addrlen) 881 { 882 socklen_t addrlen = tget32(target_addrlen); 883 void *addr = alloca(addrlen); 884 long ret; 885 886 ret = get_errno(getsockname(fd, addr, &addrlen)); 887 if (!is_error(ret)) { 888 host_to_target_sockaddr(target_addr, addr, addrlen); 889 tput32(target_addrlen, addrlen); 890 } 891 return ret; 892 } 893 894 static long do_socketpair(int domain, int type, int protocol, 895 target_ulong target_tab) 896 { 897 int tab[2]; 898 long ret; 899 900 ret = get_errno(socketpair(domain, type, protocol, tab)); 901 if (!is_error(ret)) { 902 tput32(target_tab, tab[0]); 903 tput32(target_tab + 4, tab[1]); 904 } 905 return ret; 906 } 907 908 static long do_sendto(int fd, target_ulong msg, size_t len, int flags, 909 target_ulong target_addr, socklen_t addrlen) 910 { 911 void *addr; 912 void *host_msg; 913 long ret; 914 915 host_msg = lock_user(msg, len, 1); 916 if (target_addr) { 917 addr = alloca(addrlen); 918 target_to_host_sockaddr(addr, target_addr, addrlen); 919 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 920 } else { 921 ret = get_errno(send(fd, host_msg, len, flags)); 922 } 923 unlock_user(host_msg, msg, 0); 924 return ret; 925 } 926 927 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags, 928 target_ulong target_addr, target_ulong target_addrlen) 929 { 930 socklen_t addrlen; 931 void *addr; 932 void *host_msg; 933 long ret; 934 935 host_msg = lock_user(msg, len, 0); 936 if (target_addr) { 937 addrlen = tget32(target_addrlen); 938 addr = alloca(addrlen); 939 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 940 } else { 941 addr = NULL; /* To keep compiler quiet. */ 942 ret = get_errno(recv(fd, host_msg, len, flags)); 943 } 944 if (!is_error(ret)) { 945 if (target_addr) { 946 host_to_target_sockaddr(target_addr, addr, addrlen); 947 tput32(target_addrlen, addrlen); 948 } 949 unlock_user(host_msg, msg, len); 950 } else { 951 unlock_user(host_msg, msg, 0); 952 } 953 return ret; 954 } 955 956 static long do_socketcall(int num, target_ulong vptr) 957 { 958 long ret; 959 const int n = sizeof(target_ulong); 960 961 switch(num) { 962 case SOCKOP_socket: 963 { 964 int domain = tgetl(vptr); 965 int type = tgetl(vptr + n); 966 int protocol = tgetl(vptr + 2 * n); 967 ret = do_socket(domain, type, protocol); 968 } 969 break; 970 case SOCKOP_bind: 971 { 972 int sockfd = tgetl(vptr); 973 target_ulong target_addr = tgetl(vptr + n); 974 socklen_t addrlen = tgetl(vptr + 2 * n); 975 ret = do_bind(sockfd, target_addr, addrlen); 976 } 977 break; 978 case SOCKOP_connect: 979 { 980 int sockfd = tgetl(vptr); 981 target_ulong target_addr = tgetl(vptr + n); 982 socklen_t addrlen = tgetl(vptr + 2 * n); 983 ret = do_connect(sockfd, target_addr, addrlen); 984 } 985 break; 986 case SOCKOP_listen: 987 { 988 int sockfd = tgetl(vptr); 989 int backlog = tgetl(vptr + n); 990 ret = get_errno(listen(sockfd, backlog)); 991 } 992 break; 993 case SOCKOP_accept: 994 { 995 int sockfd = tgetl(vptr); 996 target_ulong target_addr = tgetl(vptr + n); 997 target_ulong target_addrlen = tgetl(vptr + 2 * n); 998 ret = do_accept(sockfd, target_addr, target_addrlen); 999 } 1000 break; 1001 case SOCKOP_getsockname: 1002 { 1003 int sockfd = tgetl(vptr); 1004 target_ulong target_addr = tgetl(vptr + n); 1005 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1006 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1007 } 1008 break; 1009 case SOCKOP_getpeername: 1010 { 1011 int sockfd = tgetl(vptr); 1012 target_ulong target_addr = tgetl(vptr + n); 1013 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1014 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1015 } 1016 break; 1017 case SOCKOP_socketpair: 1018 { 1019 int domain = tgetl(vptr); 1020 int type = tgetl(vptr + n); 1021 int protocol = tgetl(vptr + 2 * n); 1022 target_ulong tab = tgetl(vptr + 3 * n); 1023 ret = do_socketpair(domain, type, protocol, tab); 1024 } 1025 break; 1026 case SOCKOP_send: 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_sendto(sockfd, msg, len, flags, 0, 0); 1033 } 1034 break; 1035 case SOCKOP_recv: 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 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1042 } 1043 break; 1044 case SOCKOP_sendto: 1045 { 1046 int sockfd = tgetl(vptr); 1047 target_ulong msg = tgetl(vptr + n); 1048 size_t len = tgetl(vptr + 2 * n); 1049 int flags = tgetl(vptr + 3 * n); 1050 target_ulong addr = tgetl(vptr + 4 * n); 1051 socklen_t addrlen = tgetl(vptr + 5 * n); 1052 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1053 } 1054 break; 1055 case SOCKOP_recvfrom: 1056 { 1057 int sockfd = tgetl(vptr); 1058 target_ulong msg = tgetl(vptr + n); 1059 size_t len = tgetl(vptr + 2 * n); 1060 int flags = tgetl(vptr + 3 * n); 1061 target_ulong addr = tgetl(vptr + 4 * n); 1062 target_ulong addrlen = tgetl(vptr + 5 * n); 1063 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1064 } 1065 break; 1066 case SOCKOP_shutdown: 1067 { 1068 int sockfd = tgetl(vptr); 1069 int how = tgetl(vptr + n); 1070 1071 ret = get_errno(shutdown(sockfd, how)); 1072 } 1073 break; 1074 case SOCKOP_sendmsg: 1075 case SOCKOP_recvmsg: 1076 { 1077 int fd; 1078 target_ulong target_msg; 1079 int flags; 1080 1081 fd = tgetl(vptr); 1082 target_msg = tgetl(vptr + n); 1083 flags = tgetl(vptr + 2 * n); 1084 1085 ret = do_sendrecvmsg(fd, target_msg, flags, 1086 (num == SOCKOP_sendmsg)); 1087 } 1088 break; 1089 case SOCKOP_setsockopt: 1090 { 1091 int sockfd = tgetl(vptr); 1092 int level = tgetl(vptr + n); 1093 int optname = tgetl(vptr + 2 * n); 1094 target_ulong optval = tgetl(vptr + 3 * n); 1095 socklen_t optlen = tgetl(vptr + 4 * n); 1096 1097 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1098 } 1099 break; 1100 case SOCKOP_getsockopt: 1101 { 1102 int sockfd = tgetl(vptr); 1103 int level = tgetl(vptr + n); 1104 int optname = tgetl(vptr + 2 * n); 1105 target_ulong optval = tgetl(vptr + 3 * n); 1106 target_ulong poptlen = tgetl(vptr + 4 * n); 1107 1108 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1109 } 1110 break; 1111 default: 1112 gemu_log("Unsupported socketcall: %d\n", num); 1113 ret = -ENOSYS; 1114 break; 1115 } 1116 return ret; 1117 } 1118 1119 #define N_SHM_REGIONS 32 1120 1121 static struct shm_region { 1122 uint32_t start; 1123 uint32_t size; 1124 } shm_regions[N_SHM_REGIONS]; 1125 1126 union semun { 1127 int val; 1128 struct senid_ds *buf; 1129 unsigned short *array; 1130 }; 1131 1132 /* ??? This only works with linear mappings. */ 1133 static long do_ipc(long call, long first, long second, long third, 1134 long ptr, long fifth) 1135 { 1136 int version; 1137 long ret = 0; 1138 unsigned long raddr; 1139 struct shmid_ds shm_info; 1140 int i; 1141 1142 version = call >> 16; 1143 call &= 0xffff; 1144 1145 switch (call) { 1146 case IPCOP_semop: 1147 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1148 break; 1149 1150 case IPCOP_semget: 1151 ret = get_errno(semget(first, second, third)); 1152 break; 1153 1154 case IPCOP_semctl: 1155 ret = get_errno(semctl(first, second, third, ((union semun*)ptr)->val)); 1156 1157 break; 1158 1159 case IPCOP_semtimedop: 1160 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1161 ret = -ENOSYS; 1162 break; 1163 1164 case IPCOP_msgget: 1165 ret = get_errno(msgget(first, second)); 1166 break; 1167 1168 case IPCOP_msgsnd: 1169 ret = get_errno(msgsnd(first, (struct msgbuf *) ptr, second, third)); 1170 break; 1171 1172 case IPCOP_msgctl: 1173 ret = get_errno(msgctl(first, second, (struct msqid_ds *) ptr)); 1174 break; 1175 1176 case IPCOP_msgrcv: 1177 { 1178 struct ipc_kludge 1179 { 1180 void *__unbounded msgp; 1181 long int msgtyp; 1182 }; 1183 1184 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1185 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1186 1187 ret = get_errno(msgrcv(first, msgp, second, 0, third)); 1188 1189 } 1190 break; 1191 1192 case IPCOP_shmat: 1193 /* SHM_* flags are the same on all linux platforms */ 1194 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1195 if (is_error(ret)) 1196 break; 1197 raddr = ret; 1198 /* find out the length of the shared memory segment */ 1199 1200 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1201 if (is_error(ret)) { 1202 /* can't get length, bail out */ 1203 shmdt((void *) raddr); 1204 break; 1205 } 1206 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1207 PAGE_VALID | PAGE_READ | 1208 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1209 for (i = 0; i < N_SHM_REGIONS; ++i) { 1210 if (shm_regions[i].start == 0) { 1211 shm_regions[i].start = raddr; 1212 shm_regions[i].size = shm_info.shm_segsz; 1213 break; 1214 } 1215 } 1216 if (put_user(raddr, (uint32_t *)third)) 1217 return -EFAULT; 1218 ret = 0; 1219 break; 1220 case IPCOP_shmdt: 1221 for (i = 0; i < N_SHM_REGIONS; ++i) { 1222 if (shm_regions[i].start == ptr) { 1223 shm_regions[i].start = 0; 1224 page_set_flags(ptr, shm_regions[i].size, 0); 1225 break; 1226 } 1227 } 1228 ret = get_errno(shmdt((void *) ptr)); 1229 break; 1230 1231 case IPCOP_shmget: 1232 /* IPC_* flag values are the same on all linux platforms */ 1233 ret = get_errno(shmget(first, second, third)); 1234 break; 1235 1236 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1237 case IPCOP_shmctl: 1238 switch(second) { 1239 case IPC_RMID: 1240 case SHM_LOCK: 1241 case SHM_UNLOCK: 1242 ret = get_errno(shmctl(first, second, NULL)); 1243 break; 1244 default: 1245 goto unimplemented; 1246 } 1247 break; 1248 default: 1249 unimplemented: 1250 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1251 ret = -ENOSYS; 1252 break; 1253 } 1254 return ret; 1255 } 1256 1257 /* kernel structure types definitions */ 1258 #define IFNAMSIZ 16 1259 1260 #define STRUCT(name, list...) STRUCT_ ## name, 1261 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1262 enum { 1263 #include "syscall_types.h" 1264 }; 1265 #undef STRUCT 1266 #undef STRUCT_SPECIAL 1267 1268 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1269 #define STRUCT_SPECIAL(name) 1270 #include "syscall_types.h" 1271 #undef STRUCT 1272 #undef STRUCT_SPECIAL 1273 1274 typedef struct IOCTLEntry { 1275 unsigned int target_cmd; 1276 unsigned int host_cmd; 1277 const char *name; 1278 int access; 1279 const argtype arg_type[5]; 1280 } IOCTLEntry; 1281 1282 #define IOC_R 0x0001 1283 #define IOC_W 0x0002 1284 #define IOC_RW (IOC_R | IOC_W) 1285 1286 #define MAX_STRUCT_SIZE 4096 1287 1288 IOCTLEntry ioctl_entries[] = { 1289 #define IOCTL(cmd, access, types...) \ 1290 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1291 #include "ioctls.h" 1292 { 0, 0, }, 1293 }; 1294 1295 /* ??? Implement proper locking for ioctls. */ 1296 static long do_ioctl(long fd, long cmd, long arg) 1297 { 1298 const IOCTLEntry *ie; 1299 const argtype *arg_type; 1300 long ret; 1301 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1302 int target_size; 1303 void *argptr; 1304 1305 ie = ioctl_entries; 1306 for(;;) { 1307 if (ie->target_cmd == 0) { 1308 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 1309 return -ENOSYS; 1310 } 1311 if (ie->target_cmd == cmd) 1312 break; 1313 ie++; 1314 } 1315 arg_type = ie->arg_type; 1316 #if defined(DEBUG) 1317 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 1318 #endif 1319 switch(arg_type[0]) { 1320 case TYPE_NULL: 1321 /* no argument */ 1322 ret = get_errno(ioctl(fd, ie->host_cmd)); 1323 break; 1324 case TYPE_PTRVOID: 1325 case TYPE_INT: 1326 /* int argment */ 1327 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1328 break; 1329 case TYPE_PTR: 1330 arg_type++; 1331 target_size = thunk_type_size(arg_type, 0); 1332 switch(ie->access) { 1333 case IOC_R: 1334 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1335 if (!is_error(ret)) { 1336 argptr = lock_user(arg, target_size, 0); 1337 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1338 unlock_user(argptr, arg, target_size); 1339 } 1340 break; 1341 case IOC_W: 1342 argptr = lock_user(arg, target_size, 1); 1343 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1344 unlock_user(argptr, arg, 0); 1345 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1346 break; 1347 default: 1348 case IOC_RW: 1349 argptr = lock_user(arg, target_size, 1); 1350 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1351 unlock_user(argptr, arg, 0); 1352 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1353 if (!is_error(ret)) { 1354 argptr = lock_user(arg, target_size, 0); 1355 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1356 unlock_user(argptr, arg, target_size); 1357 } 1358 break; 1359 } 1360 break; 1361 default: 1362 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 1363 ret = -ENOSYS; 1364 break; 1365 } 1366 return ret; 1367 } 1368 1369 bitmask_transtbl iflag_tbl[] = { 1370 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1371 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1372 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1373 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1374 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1375 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1376 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1377 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1378 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1379 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1380 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1381 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1382 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1383 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1384 { 0, 0, 0, 0 } 1385 }; 1386 1387 bitmask_transtbl oflag_tbl[] = { 1388 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1389 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1390 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1391 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1392 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1393 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1394 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1395 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1396 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1397 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1398 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1399 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1400 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1401 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1402 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1403 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1404 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1405 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1406 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1407 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1408 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1409 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1410 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1411 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1412 { 0, 0, 0, 0 } 1413 }; 1414 1415 bitmask_transtbl cflag_tbl[] = { 1416 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1417 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1418 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1419 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1420 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1421 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1422 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1423 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1424 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1425 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1426 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1427 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1428 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1429 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1430 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1431 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1432 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1433 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1434 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1435 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1436 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1437 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1438 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1439 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1440 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1441 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1442 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1443 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1444 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1445 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1446 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1447 { 0, 0, 0, 0 } 1448 }; 1449 1450 bitmask_transtbl lflag_tbl[] = { 1451 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1452 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1453 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1454 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1455 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1456 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1457 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1458 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1459 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1460 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1461 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1462 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1463 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1464 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1465 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1466 { 0, 0, 0, 0 } 1467 }; 1468 1469 static void target_to_host_termios (void *dst, const void *src) 1470 { 1471 struct host_termios *host = dst; 1472 const struct target_termios *target = src; 1473 1474 host->c_iflag = 1475 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 1476 host->c_oflag = 1477 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 1478 host->c_cflag = 1479 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 1480 host->c_lflag = 1481 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 1482 host->c_line = target->c_line; 1483 1484 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 1485 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 1486 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 1487 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 1488 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 1489 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 1490 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 1491 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 1492 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 1493 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 1494 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 1495 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 1496 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 1497 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 1498 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 1499 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 1500 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 1501 } 1502 1503 static void host_to_target_termios (void *dst, const void *src) 1504 { 1505 struct target_termios *target = dst; 1506 const struct host_termios *host = src; 1507 1508 target->c_iflag = 1509 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 1510 target->c_oflag = 1511 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 1512 target->c_cflag = 1513 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 1514 target->c_lflag = 1515 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 1516 target->c_line = host->c_line; 1517 1518 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 1519 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 1520 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 1521 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 1522 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 1523 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 1524 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 1525 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 1526 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 1527 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 1528 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 1529 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 1530 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 1531 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 1532 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 1533 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 1534 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 1535 } 1536 1537 StructEntry struct_termios_def = { 1538 .convert = { host_to_target_termios, target_to_host_termios }, 1539 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 1540 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 1541 }; 1542 1543 static bitmask_transtbl mmap_flags_tbl[] = { 1544 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 1545 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 1546 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 1547 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 1548 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 1549 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 1550 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 1551 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 1552 { 0, 0, 0, 0 } 1553 }; 1554 1555 static bitmask_transtbl fcntl_flags_tbl[] = { 1556 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 1557 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 1558 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 1559 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 1560 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 1561 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 1562 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 1563 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 1564 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 1565 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 1566 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 1567 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 1568 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 1569 #if defined(O_DIRECT) 1570 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 1571 #endif 1572 { 0, 0, 0, 0 } 1573 }; 1574 1575 #if defined(TARGET_I386) 1576 1577 /* NOTE: there is really one LDT for all the threads */ 1578 uint8_t *ldt_table; 1579 1580 static int read_ldt(target_ulong ptr, unsigned long bytecount) 1581 { 1582 int size; 1583 void *p; 1584 1585 if (!ldt_table) 1586 return 0; 1587 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 1588 if (size > bytecount) 1589 size = bytecount; 1590 p = lock_user(ptr, size, 0); 1591 /* ??? Shoudl this by byteswapped? */ 1592 memcpy(p, ldt_table, size); 1593 unlock_user(p, ptr, size); 1594 return size; 1595 } 1596 1597 /* XXX: add locking support */ 1598 static int write_ldt(CPUX86State *env, 1599 target_ulong ptr, unsigned long bytecount, int oldmode) 1600 { 1601 struct target_modify_ldt_ldt_s ldt_info; 1602 struct target_modify_ldt_ldt_s *target_ldt_info; 1603 int seg_32bit, contents, read_exec_only, limit_in_pages; 1604 int seg_not_present, useable; 1605 uint32_t *lp, entry_1, entry_2; 1606 1607 if (bytecount != sizeof(ldt_info)) 1608 return -EINVAL; 1609 lock_user_struct(target_ldt_info, ptr, 1); 1610 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 1611 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 1612 ldt_info.limit = tswap32(target_ldt_info->limit); 1613 ldt_info.flags = tswap32(target_ldt_info->flags); 1614 unlock_user_struct(target_ldt_info, ptr, 0); 1615 1616 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 1617 return -EINVAL; 1618 seg_32bit = ldt_info.flags & 1; 1619 contents = (ldt_info.flags >> 1) & 3; 1620 read_exec_only = (ldt_info.flags >> 3) & 1; 1621 limit_in_pages = (ldt_info.flags >> 4) & 1; 1622 seg_not_present = (ldt_info.flags >> 5) & 1; 1623 useable = (ldt_info.flags >> 6) & 1; 1624 1625 if (contents == 3) { 1626 if (oldmode) 1627 return -EINVAL; 1628 if (seg_not_present == 0) 1629 return -EINVAL; 1630 } 1631 /* allocate the LDT */ 1632 if (!ldt_table) { 1633 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1634 if (!ldt_table) 1635 return -ENOMEM; 1636 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1637 env->ldt.base = h2g(ldt_table); 1638 env->ldt.limit = 0xffff; 1639 } 1640 1641 /* NOTE: same code as Linux kernel */ 1642 /* Allow LDTs to be cleared by the user. */ 1643 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1644 if (oldmode || 1645 (contents == 0 && 1646 read_exec_only == 1 && 1647 seg_32bit == 0 && 1648 limit_in_pages == 0 && 1649 seg_not_present == 1 && 1650 useable == 0 )) { 1651 entry_1 = 0; 1652 entry_2 = 0; 1653 goto install; 1654 } 1655 } 1656 1657 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1658 (ldt_info.limit & 0x0ffff); 1659 entry_2 = (ldt_info.base_addr & 0xff000000) | 1660 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1661 (ldt_info.limit & 0xf0000) | 1662 ((read_exec_only ^ 1) << 9) | 1663 (contents << 10) | 1664 ((seg_not_present ^ 1) << 15) | 1665 (seg_32bit << 22) | 1666 (limit_in_pages << 23) | 1667 0x7000; 1668 if (!oldmode) 1669 entry_2 |= (useable << 20); 1670 1671 /* Install the new entry ... */ 1672 install: 1673 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1674 lp[0] = tswap32(entry_1); 1675 lp[1] = tswap32(entry_2); 1676 return 0; 1677 } 1678 1679 /* specific and weird i386 syscalls */ 1680 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount) 1681 { 1682 int ret = -ENOSYS; 1683 1684 switch (func) { 1685 case 0: 1686 ret = read_ldt(ptr, bytecount); 1687 break; 1688 case 1: 1689 ret = write_ldt(env, ptr, bytecount, 1); 1690 break; 1691 case 0x11: 1692 ret = write_ldt(env, ptr, bytecount, 0); 1693 break; 1694 } 1695 return ret; 1696 } 1697 1698 #endif /* defined(TARGET_I386) */ 1699 1700 /* this stack is the equivalent of the kernel stack associated with a 1701 thread/process */ 1702 #define NEW_STACK_SIZE 8192 1703 1704 static int clone_func(void *arg) 1705 { 1706 CPUState *env = arg; 1707 cpu_loop(env); 1708 /* never exits */ 1709 return 0; 1710 } 1711 1712 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 1713 { 1714 int ret; 1715 TaskState *ts; 1716 uint8_t *new_stack; 1717 CPUState *new_env; 1718 1719 if (flags & CLONE_VM) { 1720 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 1721 memset(ts, 0, sizeof(TaskState)); 1722 new_stack = ts->stack; 1723 ts->used = 1; 1724 /* add in task state list */ 1725 ts->next = first_task_state; 1726 first_task_state = ts; 1727 /* we create a new CPU instance. */ 1728 new_env = cpu_copy(env); 1729 #if defined(TARGET_I386) 1730 if (!newsp) 1731 newsp = env->regs[R_ESP]; 1732 new_env->regs[R_ESP] = newsp; 1733 new_env->regs[R_EAX] = 0; 1734 #elif defined(TARGET_ARM) 1735 if (!newsp) 1736 newsp = env->regs[13]; 1737 new_env->regs[13] = newsp; 1738 new_env->regs[0] = 0; 1739 #elif defined(TARGET_SPARC) 1740 if (!newsp) 1741 newsp = env->regwptr[22]; 1742 new_env->regwptr[22] = newsp; 1743 new_env->regwptr[0] = 0; 1744 /* XXXXX */ 1745 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 1746 #elif defined(TARGET_M68K) 1747 if (!newsp) 1748 newsp = env->aregs[7]; 1749 new_env->aregs[7] = newsp; 1750 new_env->dregs[0] = 0; 1751 /* ??? is this sufficient? */ 1752 #elif defined(TARGET_MIPS) 1753 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 1754 #elif defined(TARGET_PPC) 1755 if (!newsp) 1756 newsp = env->gpr[1]; 1757 new_env->gpr[1] = newsp; 1758 { 1759 int i; 1760 for (i = 7; i < 32; i++) 1761 new_env->gpr[i] = 0; 1762 } 1763 #elif defined(TARGET_SH4) 1764 if (!newsp) 1765 newsp = env->gregs[15]; 1766 new_env->gregs[15] = newsp; 1767 /* XXXXX */ 1768 #else 1769 #error unsupported target CPU 1770 #endif 1771 new_env->opaque = ts; 1772 #ifdef __ia64__ 1773 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1774 #else 1775 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1776 #endif 1777 } else { 1778 /* if no CLONE_VM, we consider it is a fork */ 1779 if ((flags & ~CSIGNAL) != 0) 1780 return -EINVAL; 1781 ret = fork(); 1782 } 1783 return ret; 1784 } 1785 1786 static long do_fcntl(int fd, int cmd, target_ulong arg) 1787 { 1788 struct flock fl; 1789 struct target_flock *target_fl; 1790 struct flock64 fl64; 1791 struct target_flock64 *target_fl64; 1792 long ret; 1793 1794 switch(cmd) { 1795 case TARGET_F_GETLK: 1796 ret = fcntl(fd, cmd, &fl); 1797 if (ret == 0) { 1798 lock_user_struct(target_fl, arg, 0); 1799 target_fl->l_type = tswap16(fl.l_type); 1800 target_fl->l_whence = tswap16(fl.l_whence); 1801 target_fl->l_start = tswapl(fl.l_start); 1802 target_fl->l_len = tswapl(fl.l_len); 1803 target_fl->l_pid = tswapl(fl.l_pid); 1804 unlock_user_struct(target_fl, arg, 1); 1805 } 1806 break; 1807 1808 case TARGET_F_SETLK: 1809 case TARGET_F_SETLKW: 1810 lock_user_struct(target_fl, arg, 1); 1811 fl.l_type = tswap16(target_fl->l_type); 1812 fl.l_whence = tswap16(target_fl->l_whence); 1813 fl.l_start = tswapl(target_fl->l_start); 1814 fl.l_len = tswapl(target_fl->l_len); 1815 fl.l_pid = tswapl(target_fl->l_pid); 1816 unlock_user_struct(target_fl, arg, 0); 1817 ret = fcntl(fd, cmd, &fl); 1818 break; 1819 1820 case TARGET_F_GETLK64: 1821 ret = fcntl(fd, cmd >> 1, &fl64); 1822 if (ret == 0) { 1823 lock_user_struct(target_fl64, arg, 0); 1824 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 1825 target_fl64->l_whence = tswap16(fl64.l_whence); 1826 target_fl64->l_start = tswapl(fl64.l_start); 1827 target_fl64->l_len = tswapl(fl64.l_len); 1828 target_fl64->l_pid = tswapl(fl64.l_pid); 1829 unlock_user_struct(target_fl64, arg, 1); 1830 } 1831 break; 1832 case TARGET_F_SETLK64: 1833 case TARGET_F_SETLKW64: 1834 lock_user_struct(target_fl64, arg, 1); 1835 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 1836 fl64.l_whence = tswap16(target_fl64->l_whence); 1837 fl64.l_start = tswapl(target_fl64->l_start); 1838 fl64.l_len = tswapl(target_fl64->l_len); 1839 fl64.l_pid = tswap16(target_fl64->l_pid); 1840 unlock_user_struct(target_fl64, arg, 0); 1841 ret = fcntl(fd, cmd >> 1, &fl64); 1842 break; 1843 1844 case F_GETFL: 1845 ret = fcntl(fd, cmd, arg); 1846 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 1847 break; 1848 1849 case F_SETFL: 1850 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 1851 break; 1852 1853 default: 1854 ret = fcntl(fd, cmd, arg); 1855 break; 1856 } 1857 return ret; 1858 } 1859 1860 #ifdef USE_UID16 1861 1862 static inline int high2lowuid(int uid) 1863 { 1864 if (uid > 65535) 1865 return 65534; 1866 else 1867 return uid; 1868 } 1869 1870 static inline int high2lowgid(int gid) 1871 { 1872 if (gid > 65535) 1873 return 65534; 1874 else 1875 return gid; 1876 } 1877 1878 static inline int low2highuid(int uid) 1879 { 1880 if ((int16_t)uid == -1) 1881 return -1; 1882 else 1883 return uid; 1884 } 1885 1886 static inline int low2highgid(int gid) 1887 { 1888 if ((int16_t)gid == -1) 1889 return -1; 1890 else 1891 return gid; 1892 } 1893 1894 #endif /* USE_UID16 */ 1895 1896 void syscall_init(void) 1897 { 1898 IOCTLEntry *ie; 1899 const argtype *arg_type; 1900 int size; 1901 1902 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1903 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1904 #include "syscall_types.h" 1905 #undef STRUCT 1906 #undef STRUCT_SPECIAL 1907 1908 /* we patch the ioctl size if necessary. We rely on the fact that 1909 no ioctl has all the bits at '1' in the size field */ 1910 ie = ioctl_entries; 1911 while (ie->target_cmd != 0) { 1912 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 1913 TARGET_IOC_SIZEMASK) { 1914 arg_type = ie->arg_type; 1915 if (arg_type[0] != TYPE_PTR) { 1916 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 1917 ie->target_cmd); 1918 exit(1); 1919 } 1920 arg_type++; 1921 size = thunk_type_size(arg_type, 0); 1922 ie->target_cmd = (ie->target_cmd & 1923 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 1924 (size << TARGET_IOC_SIZESHIFT); 1925 } 1926 /* automatic consistency check if same arch */ 1927 #if defined(__i386__) && defined(TARGET_I386) 1928 if (ie->target_cmd != ie->host_cmd) { 1929 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 1930 ie->target_cmd, ie->host_cmd); 1931 } 1932 #endif 1933 ie++; 1934 } 1935 } 1936 1937 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 1938 { 1939 #ifdef TARGET_WORDS_BIG_ENDIAN 1940 return ((uint64_t)word0 << 32) | word1; 1941 #else 1942 return ((uint64_t)word1 << 32) | word0; 1943 #endif 1944 } 1945 1946 #ifdef TARGET_NR_truncate64 1947 static inline long target_truncate64(void *cpu_env, const char *arg1, 1948 long arg2, long arg3, long arg4) 1949 { 1950 #ifdef TARGET_ARM 1951 if (((CPUARMState *)cpu_env)->eabi) 1952 { 1953 arg2 = arg3; 1954 arg3 = arg4; 1955 } 1956 #endif 1957 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 1958 } 1959 #endif 1960 1961 #ifdef TARGET_NR_ftruncate64 1962 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 1963 long arg3, long arg4) 1964 { 1965 #ifdef TARGET_ARM 1966 if (((CPUARMState *)cpu_env)->eabi) 1967 { 1968 arg2 = arg3; 1969 arg3 = arg4; 1970 } 1971 #endif 1972 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 1973 } 1974 #endif 1975 1976 static inline void target_to_host_timespec(struct timespec *host_ts, 1977 target_ulong target_addr) 1978 { 1979 struct target_timespec *target_ts; 1980 1981 lock_user_struct(target_ts, target_addr, 1); 1982 host_ts->tv_sec = tswapl(target_ts->tv_sec); 1983 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 1984 unlock_user_struct(target_ts, target_addr, 0); 1985 } 1986 1987 static inline void host_to_target_timespec(target_ulong target_addr, 1988 struct timespec *host_ts) 1989 { 1990 struct target_timespec *target_ts; 1991 1992 lock_user_struct(target_ts, target_addr, 0); 1993 target_ts->tv_sec = tswapl(host_ts->tv_sec); 1994 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 1995 unlock_user_struct(target_ts, target_addr, 1); 1996 } 1997 1998 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 1999 long arg4, long arg5, long arg6) 2000 { 2001 long ret; 2002 struct stat st; 2003 struct statfs stfs; 2004 void *p; 2005 2006 #ifdef DEBUG 2007 gemu_log("syscall %d", num); 2008 #endif 2009 switch(num) { 2010 case TARGET_NR_exit: 2011 #ifdef HAVE_GPROF 2012 _mcleanup(); 2013 #endif 2014 gdb_exit(cpu_env, arg1); 2015 /* XXX: should free thread stack and CPU env */ 2016 _exit(arg1); 2017 ret = 0; /* avoid warning */ 2018 break; 2019 case TARGET_NR_read: 2020 page_unprotect_range(arg2, arg3); 2021 p = lock_user(arg2, arg3, 0); 2022 ret = get_errno(read(arg1, p, arg3)); 2023 unlock_user(p, arg2, ret); 2024 break; 2025 case TARGET_NR_write: 2026 p = lock_user(arg2, arg3, 1); 2027 ret = get_errno(write(arg1, p, arg3)); 2028 unlock_user(p, arg2, 0); 2029 break; 2030 case TARGET_NR_open: 2031 p = lock_user_string(arg1); 2032 ret = get_errno(open(path(p), 2033 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2034 arg3)); 2035 unlock_user(p, arg1, 0); 2036 break; 2037 case TARGET_NR_close: 2038 ret = get_errno(close(arg1)); 2039 break; 2040 case TARGET_NR_brk: 2041 ret = do_brk(arg1); 2042 break; 2043 case TARGET_NR_fork: 2044 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2045 break; 2046 case TARGET_NR_waitpid: 2047 { 2048 int status; 2049 ret = get_errno(waitpid(arg1, &status, arg3)); 2050 if (!is_error(ret) && arg2) 2051 tput32(arg2, status); 2052 } 2053 break; 2054 case TARGET_NR_creat: 2055 p = lock_user_string(arg1); 2056 ret = get_errno(creat(p, arg2)); 2057 unlock_user(p, arg1, 0); 2058 break; 2059 case TARGET_NR_link: 2060 { 2061 void * p2; 2062 p = lock_user_string(arg1); 2063 p2 = lock_user_string(arg2); 2064 ret = get_errno(link(p, p2)); 2065 unlock_user(p2, arg2, 0); 2066 unlock_user(p, arg1, 0); 2067 } 2068 break; 2069 case TARGET_NR_unlink: 2070 p = lock_user_string(arg1); 2071 ret = get_errno(unlink(p)); 2072 unlock_user(p, arg1, 0); 2073 break; 2074 case TARGET_NR_execve: 2075 { 2076 char **argp, **envp; 2077 int argc, envc; 2078 target_ulong gp; 2079 target_ulong guest_argp; 2080 target_ulong guest_envp; 2081 target_ulong addr; 2082 char **q; 2083 2084 argc = 0; 2085 guest_argp = arg2; 2086 for (gp = guest_argp; tgetl(gp); gp++) 2087 argc++; 2088 envc = 0; 2089 guest_envp = arg3; 2090 for (gp = guest_envp; tgetl(gp); gp++) 2091 envc++; 2092 2093 argp = alloca((argc + 1) * sizeof(void *)); 2094 envp = alloca((envc + 1) * sizeof(void *)); 2095 2096 for (gp = guest_argp, q = argp; ; 2097 gp += sizeof(target_ulong), q++) { 2098 addr = tgetl(gp); 2099 if (!addr) 2100 break; 2101 *q = lock_user_string(addr); 2102 } 2103 *q = NULL; 2104 2105 for (gp = guest_envp, q = envp; ; 2106 gp += sizeof(target_ulong), q++) { 2107 addr = tgetl(gp); 2108 if (!addr) 2109 break; 2110 *q = lock_user_string(addr); 2111 } 2112 *q = NULL; 2113 2114 p = lock_user_string(arg1); 2115 ret = get_errno(execve(p, argp, envp)); 2116 unlock_user(p, arg1, 0); 2117 2118 for (gp = guest_argp, q = argp; *q; 2119 gp += sizeof(target_ulong), q++) { 2120 addr = tgetl(gp); 2121 unlock_user(*q, addr, 0); 2122 } 2123 for (gp = guest_envp, q = envp; *q; 2124 gp += sizeof(target_ulong), q++) { 2125 addr = tgetl(gp); 2126 unlock_user(*q, addr, 0); 2127 } 2128 } 2129 break; 2130 case TARGET_NR_chdir: 2131 p = lock_user_string(arg1); 2132 ret = get_errno(chdir(p)); 2133 unlock_user(p, arg1, 0); 2134 break; 2135 #ifdef TARGET_NR_time 2136 case TARGET_NR_time: 2137 { 2138 time_t host_time; 2139 ret = get_errno(time(&host_time)); 2140 if (!is_error(ret) && arg1) 2141 tputl(arg1, host_time); 2142 } 2143 break; 2144 #endif 2145 case TARGET_NR_mknod: 2146 p = lock_user_string(arg1); 2147 ret = get_errno(mknod(p, arg2, arg3)); 2148 unlock_user(p, arg1, 0); 2149 break; 2150 case TARGET_NR_chmod: 2151 p = lock_user_string(arg1); 2152 ret = get_errno(chmod(p, arg2)); 2153 unlock_user(p, arg1, 0); 2154 break; 2155 #ifdef TARGET_NR_break 2156 case TARGET_NR_break: 2157 goto unimplemented; 2158 #endif 2159 #ifdef TARGET_NR_oldstat 2160 case TARGET_NR_oldstat: 2161 goto unimplemented; 2162 #endif 2163 case TARGET_NR_lseek: 2164 ret = get_errno(lseek(arg1, arg2, arg3)); 2165 break; 2166 case TARGET_NR_getpid: 2167 ret = get_errno(getpid()); 2168 break; 2169 case TARGET_NR_mount: 2170 { 2171 /* need to look at the data field */ 2172 void *p2, *p3; 2173 p = lock_user_string(arg1); 2174 p2 = lock_user_string(arg2); 2175 p3 = lock_user_string(arg3); 2176 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2177 unlock_user(p, arg1, 0); 2178 unlock_user(p2, arg2, 0); 2179 unlock_user(p3, arg3, 0); 2180 break; 2181 } 2182 case TARGET_NR_umount: 2183 p = lock_user_string(arg1); 2184 ret = get_errno(umount(p)); 2185 unlock_user(p, arg1, 0); 2186 break; 2187 case TARGET_NR_stime: 2188 { 2189 time_t host_time; 2190 host_time = tgetl(arg1); 2191 ret = get_errno(stime(&host_time)); 2192 } 2193 break; 2194 case TARGET_NR_ptrace: 2195 goto unimplemented; 2196 case TARGET_NR_alarm: 2197 ret = alarm(arg1); 2198 break; 2199 #ifdef TARGET_NR_oldfstat 2200 case TARGET_NR_oldfstat: 2201 goto unimplemented; 2202 #endif 2203 case TARGET_NR_pause: 2204 ret = get_errno(pause()); 2205 break; 2206 case TARGET_NR_utime: 2207 { 2208 struct utimbuf tbuf, *host_tbuf; 2209 struct target_utimbuf *target_tbuf; 2210 if (arg2) { 2211 lock_user_struct(target_tbuf, arg2, 1); 2212 tbuf.actime = tswapl(target_tbuf->actime); 2213 tbuf.modtime = tswapl(target_tbuf->modtime); 2214 unlock_user_struct(target_tbuf, arg2, 0); 2215 host_tbuf = &tbuf; 2216 } else { 2217 host_tbuf = NULL; 2218 } 2219 p = lock_user_string(arg1); 2220 ret = get_errno(utime(p, host_tbuf)); 2221 unlock_user(p, arg1, 0); 2222 } 2223 break; 2224 case TARGET_NR_utimes: 2225 { 2226 struct timeval *tvp, tv[2]; 2227 if (arg2) { 2228 target_to_host_timeval(&tv[0], arg2); 2229 target_to_host_timeval(&tv[1], 2230 arg2 + sizeof (struct target_timeval)); 2231 tvp = tv; 2232 } else { 2233 tvp = NULL; 2234 } 2235 p = lock_user_string(arg1); 2236 ret = get_errno(utimes(p, tvp)); 2237 unlock_user(p, arg1, 0); 2238 } 2239 break; 2240 #ifdef TARGET_NR_stty 2241 case TARGET_NR_stty: 2242 goto unimplemented; 2243 #endif 2244 #ifdef TARGET_NR_gtty 2245 case TARGET_NR_gtty: 2246 goto unimplemented; 2247 #endif 2248 case TARGET_NR_access: 2249 p = lock_user_string(arg1); 2250 ret = get_errno(access(p, arg2)); 2251 unlock_user(p, arg1, 0); 2252 break; 2253 case TARGET_NR_nice: 2254 ret = get_errno(nice(arg1)); 2255 break; 2256 #ifdef TARGET_NR_ftime 2257 case TARGET_NR_ftime: 2258 goto unimplemented; 2259 #endif 2260 case TARGET_NR_sync: 2261 sync(); 2262 ret = 0; 2263 break; 2264 case TARGET_NR_kill: 2265 ret = get_errno(kill(arg1, arg2)); 2266 break; 2267 case TARGET_NR_rename: 2268 { 2269 void *p2; 2270 p = lock_user_string(arg1); 2271 p2 = lock_user_string(arg2); 2272 ret = get_errno(rename(p, p2)); 2273 unlock_user(p2, arg2, 0); 2274 unlock_user(p, arg1, 0); 2275 } 2276 break; 2277 case TARGET_NR_mkdir: 2278 p = lock_user_string(arg1); 2279 ret = get_errno(mkdir(p, arg2)); 2280 unlock_user(p, arg1, 0); 2281 break; 2282 case TARGET_NR_rmdir: 2283 p = lock_user_string(arg1); 2284 ret = get_errno(rmdir(p)); 2285 unlock_user(p, arg1, 0); 2286 break; 2287 case TARGET_NR_dup: 2288 ret = get_errno(dup(arg1)); 2289 break; 2290 case TARGET_NR_pipe: 2291 { 2292 int host_pipe[2]; 2293 ret = get_errno(pipe(host_pipe)); 2294 if (!is_error(ret)) { 2295 tput32(arg1, host_pipe[0]); 2296 tput32(arg1 + 4, host_pipe[1]); 2297 } 2298 } 2299 break; 2300 case TARGET_NR_times: 2301 { 2302 struct target_tms *tmsp; 2303 struct tms tms; 2304 ret = get_errno(times(&tms)); 2305 if (arg1) { 2306 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2307 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2308 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2309 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2310 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2311 } 2312 if (!is_error(ret)) 2313 ret = host_to_target_clock_t(ret); 2314 } 2315 break; 2316 #ifdef TARGET_NR_prof 2317 case TARGET_NR_prof: 2318 goto unimplemented; 2319 #endif 2320 case TARGET_NR_signal: 2321 goto unimplemented; 2322 2323 case TARGET_NR_acct: 2324 p = lock_user_string(arg1); 2325 ret = get_errno(acct(path(p))); 2326 unlock_user(p, arg1, 0); 2327 break; 2328 case TARGET_NR_umount2: 2329 p = lock_user_string(arg1); 2330 ret = get_errno(umount2(p, arg2)); 2331 unlock_user(p, arg1, 0); 2332 break; 2333 #ifdef TARGET_NR_lock 2334 case TARGET_NR_lock: 2335 goto unimplemented; 2336 #endif 2337 case TARGET_NR_ioctl: 2338 ret = do_ioctl(arg1, arg2, arg3); 2339 break; 2340 case TARGET_NR_fcntl: 2341 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2342 break; 2343 #ifdef TARGET_NR_mpx 2344 case TARGET_NR_mpx: 2345 goto unimplemented; 2346 #endif 2347 case TARGET_NR_setpgid: 2348 ret = get_errno(setpgid(arg1, arg2)); 2349 break; 2350 #ifdef TARGET_NR_ulimit 2351 case TARGET_NR_ulimit: 2352 goto unimplemented; 2353 #endif 2354 #ifdef TARGET_NR_oldolduname 2355 case TARGET_NR_oldolduname: 2356 goto unimplemented; 2357 #endif 2358 case TARGET_NR_umask: 2359 ret = get_errno(umask(arg1)); 2360 break; 2361 case TARGET_NR_chroot: 2362 p = lock_user_string(arg1); 2363 ret = get_errno(chroot(p)); 2364 unlock_user(p, arg1, 0); 2365 break; 2366 case TARGET_NR_ustat: 2367 goto unimplemented; 2368 case TARGET_NR_dup2: 2369 ret = get_errno(dup2(arg1, arg2)); 2370 break; 2371 case TARGET_NR_getppid: 2372 ret = get_errno(getppid()); 2373 break; 2374 case TARGET_NR_getpgrp: 2375 ret = get_errno(getpgrp()); 2376 break; 2377 case TARGET_NR_setsid: 2378 ret = get_errno(setsid()); 2379 break; 2380 case TARGET_NR_sigaction: 2381 { 2382 #if !defined(TARGET_MIPS) 2383 struct target_old_sigaction *old_act; 2384 struct target_sigaction act, oact, *pact; 2385 if (arg2) { 2386 lock_user_struct(old_act, arg2, 1); 2387 act._sa_handler = old_act->_sa_handler; 2388 target_siginitset(&act.sa_mask, old_act->sa_mask); 2389 act.sa_flags = old_act->sa_flags; 2390 act.sa_restorer = old_act->sa_restorer; 2391 unlock_user_struct(old_act, arg2, 0); 2392 pact = &act; 2393 } else { 2394 pact = NULL; 2395 } 2396 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2397 if (!is_error(ret) && arg3) { 2398 lock_user_struct(old_act, arg3, 0); 2399 old_act->_sa_handler = oact._sa_handler; 2400 old_act->sa_mask = oact.sa_mask.sig[0]; 2401 old_act->sa_flags = oact.sa_flags; 2402 old_act->sa_restorer = oact.sa_restorer; 2403 unlock_user_struct(old_act, arg3, 1); 2404 } 2405 #else 2406 struct target_sigaction act, oact, *pact, *old_act; 2407 2408 if (arg2) { 2409 lock_user_struct(old_act, arg2, 1); 2410 act._sa_handler = old_act->_sa_handler; 2411 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2412 act.sa_flags = old_act->sa_flags; 2413 unlock_user_struct(old_act, arg2, 0); 2414 pact = &act; 2415 } else { 2416 pact = NULL; 2417 } 2418 2419 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2420 2421 if (!is_error(ret) && arg3) { 2422 lock_user_struct(old_act, arg3, 0); 2423 old_act->_sa_handler = oact._sa_handler; 2424 old_act->sa_flags = oact.sa_flags; 2425 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 2426 old_act->sa_mask.sig[1] = 0; 2427 old_act->sa_mask.sig[2] = 0; 2428 old_act->sa_mask.sig[3] = 0; 2429 unlock_user_struct(old_act, arg3, 1); 2430 } 2431 #endif 2432 } 2433 break; 2434 case TARGET_NR_rt_sigaction: 2435 { 2436 struct target_sigaction *act; 2437 struct target_sigaction *oact; 2438 2439 if (arg2) 2440 lock_user_struct(act, arg2, 1); 2441 else 2442 act = NULL; 2443 if (arg3) 2444 lock_user_struct(oact, arg3, 0); 2445 else 2446 oact = NULL; 2447 ret = get_errno(do_sigaction(arg1, act, oact)); 2448 if (arg2) 2449 unlock_user_struct(act, arg2, 0); 2450 if (arg3) 2451 unlock_user_struct(oact, arg3, 1); 2452 } 2453 break; 2454 case TARGET_NR_sgetmask: 2455 { 2456 sigset_t cur_set; 2457 target_ulong target_set; 2458 sigprocmask(0, NULL, &cur_set); 2459 host_to_target_old_sigset(&target_set, &cur_set); 2460 ret = target_set; 2461 } 2462 break; 2463 case TARGET_NR_ssetmask: 2464 { 2465 sigset_t set, oset, cur_set; 2466 target_ulong target_set = arg1; 2467 sigprocmask(0, NULL, &cur_set); 2468 target_to_host_old_sigset(&set, &target_set); 2469 sigorset(&set, &set, &cur_set); 2470 sigprocmask(SIG_SETMASK, &set, &oset); 2471 host_to_target_old_sigset(&target_set, &oset); 2472 ret = target_set; 2473 } 2474 break; 2475 case TARGET_NR_sigprocmask: 2476 { 2477 int how = arg1; 2478 sigset_t set, oldset, *set_ptr; 2479 2480 if (arg2) { 2481 switch(how) { 2482 case TARGET_SIG_BLOCK: 2483 how = SIG_BLOCK; 2484 break; 2485 case TARGET_SIG_UNBLOCK: 2486 how = SIG_UNBLOCK; 2487 break; 2488 case TARGET_SIG_SETMASK: 2489 how = SIG_SETMASK; 2490 break; 2491 default: 2492 ret = -EINVAL; 2493 goto fail; 2494 } 2495 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2496 target_to_host_old_sigset(&set, p); 2497 unlock_user(p, arg2, 0); 2498 set_ptr = &set; 2499 } else { 2500 how = 0; 2501 set_ptr = NULL; 2502 } 2503 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 2504 if (!is_error(ret) && arg3) { 2505 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2506 host_to_target_old_sigset(p, &oldset); 2507 unlock_user(p, arg3, sizeof(target_sigset_t)); 2508 } 2509 } 2510 break; 2511 case TARGET_NR_rt_sigprocmask: 2512 { 2513 int how = arg1; 2514 sigset_t set, oldset, *set_ptr; 2515 2516 if (arg2) { 2517 switch(how) { 2518 case TARGET_SIG_BLOCK: 2519 how = SIG_BLOCK; 2520 break; 2521 case TARGET_SIG_UNBLOCK: 2522 how = SIG_UNBLOCK; 2523 break; 2524 case TARGET_SIG_SETMASK: 2525 how = SIG_SETMASK; 2526 break; 2527 default: 2528 ret = -EINVAL; 2529 goto fail; 2530 } 2531 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2532 target_to_host_sigset(&set, p); 2533 unlock_user(p, arg2, 0); 2534 set_ptr = &set; 2535 } else { 2536 how = 0; 2537 set_ptr = NULL; 2538 } 2539 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 2540 if (!is_error(ret) && arg3) { 2541 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2542 host_to_target_sigset(p, &oldset); 2543 unlock_user(p, arg3, sizeof(target_sigset_t)); 2544 } 2545 } 2546 break; 2547 case TARGET_NR_sigpending: 2548 { 2549 sigset_t set; 2550 ret = get_errno(sigpending(&set)); 2551 if (!is_error(ret)) { 2552 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2553 host_to_target_old_sigset(p, &set); 2554 unlock_user(p, arg1, sizeof(target_sigset_t)); 2555 } 2556 } 2557 break; 2558 case TARGET_NR_rt_sigpending: 2559 { 2560 sigset_t set; 2561 ret = get_errno(sigpending(&set)); 2562 if (!is_error(ret)) { 2563 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2564 host_to_target_sigset(p, &set); 2565 unlock_user(p, arg1, sizeof(target_sigset_t)); 2566 } 2567 } 2568 break; 2569 case TARGET_NR_sigsuspend: 2570 { 2571 sigset_t set; 2572 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2573 target_to_host_old_sigset(&set, p); 2574 unlock_user(p, arg1, 0); 2575 ret = get_errno(sigsuspend(&set)); 2576 } 2577 break; 2578 case TARGET_NR_rt_sigsuspend: 2579 { 2580 sigset_t set; 2581 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2582 target_to_host_sigset(&set, p); 2583 unlock_user(p, arg1, 0); 2584 ret = get_errno(sigsuspend(&set)); 2585 } 2586 break; 2587 case TARGET_NR_rt_sigtimedwait: 2588 { 2589 sigset_t set; 2590 struct timespec uts, *puts; 2591 siginfo_t uinfo; 2592 2593 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2594 target_to_host_sigset(&set, p); 2595 unlock_user(p, arg1, 0); 2596 if (arg3) { 2597 puts = &uts; 2598 target_to_host_timespec(puts, arg3); 2599 } else { 2600 puts = NULL; 2601 } 2602 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 2603 if (!is_error(ret) && arg2) { 2604 p = lock_user(arg2, sizeof(target_sigset_t), 0); 2605 host_to_target_siginfo(p, &uinfo); 2606 unlock_user(p, arg2, sizeof(target_sigset_t)); 2607 } 2608 } 2609 break; 2610 case TARGET_NR_rt_sigqueueinfo: 2611 { 2612 siginfo_t uinfo; 2613 p = lock_user(arg3, sizeof(target_sigset_t), 1); 2614 target_to_host_siginfo(&uinfo, p); 2615 unlock_user(p, arg1, 0); 2616 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 2617 } 2618 break; 2619 case TARGET_NR_sigreturn: 2620 /* NOTE: ret is eax, so not transcoding must be done */ 2621 ret = do_sigreturn(cpu_env); 2622 break; 2623 case TARGET_NR_rt_sigreturn: 2624 /* NOTE: ret is eax, so not transcoding must be done */ 2625 ret = do_rt_sigreturn(cpu_env); 2626 break; 2627 case TARGET_NR_sethostname: 2628 p = lock_user_string(arg1); 2629 ret = get_errno(sethostname(p, arg2)); 2630 unlock_user(p, arg1, 0); 2631 break; 2632 case TARGET_NR_setrlimit: 2633 { 2634 /* XXX: convert resource ? */ 2635 int resource = arg1; 2636 struct target_rlimit *target_rlim; 2637 struct rlimit rlim; 2638 lock_user_struct(target_rlim, arg2, 1); 2639 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2640 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2641 unlock_user_struct(target_rlim, arg2, 0); 2642 ret = get_errno(setrlimit(resource, &rlim)); 2643 } 2644 break; 2645 case TARGET_NR_getrlimit: 2646 { 2647 /* XXX: convert resource ? */ 2648 int resource = arg1; 2649 struct target_rlimit *target_rlim; 2650 struct rlimit rlim; 2651 2652 ret = get_errno(getrlimit(resource, &rlim)); 2653 if (!is_error(ret)) { 2654 lock_user_struct(target_rlim, arg2, 0); 2655 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2656 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2657 unlock_user_struct(target_rlim, arg2, 1); 2658 } 2659 } 2660 break; 2661 case TARGET_NR_getrusage: 2662 { 2663 struct rusage rusage; 2664 ret = get_errno(getrusage(arg1, &rusage)); 2665 if (!is_error(ret)) { 2666 host_to_target_rusage(arg2, &rusage); 2667 } 2668 } 2669 break; 2670 case TARGET_NR_gettimeofday: 2671 { 2672 struct timeval tv; 2673 ret = get_errno(gettimeofday(&tv, NULL)); 2674 if (!is_error(ret)) { 2675 host_to_target_timeval(arg1, &tv); 2676 } 2677 } 2678 break; 2679 case TARGET_NR_settimeofday: 2680 { 2681 struct timeval tv; 2682 target_to_host_timeval(&tv, arg1); 2683 ret = get_errno(settimeofday(&tv, NULL)); 2684 } 2685 break; 2686 #ifdef TARGET_NR_select 2687 case TARGET_NR_select: 2688 { 2689 struct target_sel_arg_struct *sel; 2690 target_ulong inp, outp, exp, tvp; 2691 long nsel; 2692 2693 lock_user_struct(sel, arg1, 1); 2694 nsel = tswapl(sel->n); 2695 inp = tswapl(sel->inp); 2696 outp = tswapl(sel->outp); 2697 exp = tswapl(sel->exp); 2698 tvp = tswapl(sel->tvp); 2699 unlock_user_struct(sel, arg1, 0); 2700 ret = do_select(nsel, inp, outp, exp, tvp); 2701 } 2702 break; 2703 #endif 2704 case TARGET_NR_symlink: 2705 { 2706 void *p2; 2707 p = lock_user_string(arg1); 2708 p2 = lock_user_string(arg2); 2709 ret = get_errno(symlink(p, p2)); 2710 unlock_user(p2, arg2, 0); 2711 unlock_user(p, arg1, 0); 2712 } 2713 break; 2714 #ifdef TARGET_NR_oldlstat 2715 case TARGET_NR_oldlstat: 2716 goto unimplemented; 2717 #endif 2718 case TARGET_NR_readlink: 2719 { 2720 void *p2; 2721 p = lock_user_string(arg1); 2722 p2 = lock_user(arg2, arg3, 0); 2723 ret = get_errno(readlink(path(p), p2, arg3)); 2724 unlock_user(p2, arg2, ret); 2725 unlock_user(p, arg1, 0); 2726 } 2727 break; 2728 case TARGET_NR_uselib: 2729 goto unimplemented; 2730 case TARGET_NR_swapon: 2731 p = lock_user_string(arg1); 2732 ret = get_errno(swapon(p, arg2)); 2733 unlock_user(p, arg1, 0); 2734 break; 2735 case TARGET_NR_reboot: 2736 goto unimplemented; 2737 case TARGET_NR_readdir: 2738 goto unimplemented; 2739 case TARGET_NR_mmap: 2740 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 2741 { 2742 target_ulong *v; 2743 target_ulong v1, v2, v3, v4, v5, v6; 2744 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 2745 v1 = tswapl(v[0]); 2746 v2 = tswapl(v[1]); 2747 v3 = tswapl(v[2]); 2748 v4 = tswapl(v[3]); 2749 v5 = tswapl(v[4]); 2750 v6 = tswapl(v[5]); 2751 unlock_user(v, arg1, 0); 2752 ret = get_errno(target_mmap(v1, v2, v3, 2753 target_to_host_bitmask(v4, mmap_flags_tbl), 2754 v5, v6)); 2755 } 2756 #else 2757 ret = get_errno(target_mmap(arg1, arg2, arg3, 2758 target_to_host_bitmask(arg4, mmap_flags_tbl), 2759 arg5, 2760 arg6)); 2761 #endif 2762 break; 2763 #ifdef TARGET_NR_mmap2 2764 case TARGET_NR_mmap2: 2765 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 2766 #define MMAP_SHIFT 12 2767 #else 2768 #define MMAP_SHIFT TARGET_PAGE_BITS 2769 #endif 2770 ret = get_errno(target_mmap(arg1, arg2, arg3, 2771 target_to_host_bitmask(arg4, mmap_flags_tbl), 2772 arg5, 2773 arg6 << MMAP_SHIFT)); 2774 break; 2775 #endif 2776 case TARGET_NR_munmap: 2777 ret = get_errno(target_munmap(arg1, arg2)); 2778 break; 2779 case TARGET_NR_mprotect: 2780 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 2781 break; 2782 case TARGET_NR_mremap: 2783 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 2784 break; 2785 /* ??? msync/mlock/munlock are broken for softmmu. */ 2786 case TARGET_NR_msync: 2787 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 2788 break; 2789 case TARGET_NR_mlock: 2790 ret = get_errno(mlock(g2h(arg1), arg2)); 2791 break; 2792 case TARGET_NR_munlock: 2793 ret = get_errno(munlock(g2h(arg1), arg2)); 2794 break; 2795 case TARGET_NR_mlockall: 2796 ret = get_errno(mlockall(arg1)); 2797 break; 2798 case TARGET_NR_munlockall: 2799 ret = get_errno(munlockall()); 2800 break; 2801 case TARGET_NR_truncate: 2802 p = lock_user_string(arg1); 2803 ret = get_errno(truncate(p, arg2)); 2804 unlock_user(p, arg1, 0); 2805 break; 2806 case TARGET_NR_ftruncate: 2807 ret = get_errno(ftruncate(arg1, arg2)); 2808 break; 2809 case TARGET_NR_fchmod: 2810 ret = get_errno(fchmod(arg1, arg2)); 2811 break; 2812 case TARGET_NR_getpriority: 2813 ret = get_errno(getpriority(arg1, arg2)); 2814 break; 2815 case TARGET_NR_setpriority: 2816 ret = get_errno(setpriority(arg1, arg2, arg3)); 2817 break; 2818 #ifdef TARGET_NR_profil 2819 case TARGET_NR_profil: 2820 goto unimplemented; 2821 #endif 2822 case TARGET_NR_statfs: 2823 p = lock_user_string(arg1); 2824 ret = get_errno(statfs(path(p), &stfs)); 2825 unlock_user(p, arg1, 0); 2826 convert_statfs: 2827 if (!is_error(ret)) { 2828 struct target_statfs *target_stfs; 2829 2830 lock_user_struct(target_stfs, arg2, 0); 2831 /* ??? put_user is probably wrong. */ 2832 put_user(stfs.f_type, &target_stfs->f_type); 2833 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2834 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2835 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2836 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2837 put_user(stfs.f_files, &target_stfs->f_files); 2838 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2839 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2840 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2841 unlock_user_struct(target_stfs, arg2, 1); 2842 } 2843 break; 2844 case TARGET_NR_fstatfs: 2845 ret = get_errno(fstatfs(arg1, &stfs)); 2846 goto convert_statfs; 2847 #ifdef TARGET_NR_statfs64 2848 case TARGET_NR_statfs64: 2849 p = lock_user_string(arg1); 2850 ret = get_errno(statfs(path(p), &stfs)); 2851 unlock_user(p, arg1, 0); 2852 convert_statfs64: 2853 if (!is_error(ret)) { 2854 struct target_statfs64 *target_stfs; 2855 2856 lock_user_struct(target_stfs, arg3, 0); 2857 /* ??? put_user is probably wrong. */ 2858 put_user(stfs.f_type, &target_stfs->f_type); 2859 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2860 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2861 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2862 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2863 put_user(stfs.f_files, &target_stfs->f_files); 2864 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2865 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2866 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2867 unlock_user_struct(target_stfs, arg3, 0); 2868 } 2869 break; 2870 case TARGET_NR_fstatfs64: 2871 ret = get_errno(fstatfs(arg1, &stfs)); 2872 goto convert_statfs64; 2873 #endif 2874 #ifdef TARGET_NR_ioperm 2875 case TARGET_NR_ioperm: 2876 goto unimplemented; 2877 #endif 2878 case TARGET_NR_socketcall: 2879 ret = do_socketcall(arg1, arg2); 2880 break; 2881 2882 #ifdef TARGET_NR_accept 2883 case TARGET_NR_accept: 2884 ret = do_accept(arg1, arg2, arg3); 2885 break; 2886 #endif 2887 #ifdef TARGET_NR_bind 2888 case TARGET_NR_bind: 2889 ret = do_bind(arg1, arg2, arg3); 2890 break; 2891 #endif 2892 #ifdef TARGET_NR_connect 2893 case TARGET_NR_connect: 2894 ret = do_connect(arg1, arg2, arg3); 2895 break; 2896 #endif 2897 #ifdef TARGET_NR_getpeername 2898 case TARGET_NR_getpeername: 2899 ret = do_getpeername(arg1, arg2, arg3); 2900 break; 2901 #endif 2902 #ifdef TARGET_NR_getsockname 2903 case TARGET_NR_getsockname: 2904 ret = do_getsockname(arg1, arg2, arg3); 2905 break; 2906 #endif 2907 #ifdef TARGET_NR_getsockopt 2908 case TARGET_NR_getsockopt: 2909 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 2910 break; 2911 #endif 2912 #ifdef TARGET_NR_listen 2913 case TARGET_NR_listen: 2914 ret = get_errno(listen(arg1, arg2)); 2915 break; 2916 #endif 2917 #ifdef TARGET_NR_recv 2918 case TARGET_NR_recv: 2919 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 2920 break; 2921 #endif 2922 #ifdef TARGET_NR_recvfrom 2923 case TARGET_NR_recvfrom: 2924 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 2925 break; 2926 #endif 2927 #ifdef TARGET_NR_recvmsg 2928 case TARGET_NR_recvmsg: 2929 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 2930 break; 2931 #endif 2932 #ifdef TARGET_NR_send 2933 case TARGET_NR_send: 2934 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 2935 break; 2936 #endif 2937 #ifdef TARGET_NR_sendmsg 2938 case TARGET_NR_sendmsg: 2939 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 2940 break; 2941 #endif 2942 #ifdef TARGET_NR_sendto 2943 case TARGET_NR_sendto: 2944 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 2945 break; 2946 #endif 2947 #ifdef TARGET_NR_shutdown 2948 case TARGET_NR_shutdown: 2949 ret = get_errno(shutdown(arg1, arg2)); 2950 break; 2951 #endif 2952 #ifdef TARGET_NR_socket 2953 case TARGET_NR_socket: 2954 ret = do_socket(arg1, arg2, arg3); 2955 break; 2956 #endif 2957 #ifdef TARGET_NR_socketpair 2958 case TARGET_NR_socketpair: 2959 ret = do_socketpair(arg1, arg2, arg3, arg4); 2960 break; 2961 #endif 2962 #ifdef TARGET_NR_setsockopt 2963 case TARGET_NR_setsockopt: 2964 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 2965 break; 2966 #endif 2967 2968 case TARGET_NR_syslog: 2969 p = lock_user_string(arg2); 2970 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 2971 unlock_user(p, arg2, 0); 2972 break; 2973 2974 case TARGET_NR_setitimer: 2975 { 2976 struct itimerval value, ovalue, *pvalue; 2977 2978 if (arg2) { 2979 pvalue = &value; 2980 target_to_host_timeval(&pvalue->it_interval, 2981 arg2); 2982 target_to_host_timeval(&pvalue->it_value, 2983 arg2 + sizeof(struct target_timeval)); 2984 } else { 2985 pvalue = NULL; 2986 } 2987 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 2988 if (!is_error(ret) && arg3) { 2989 host_to_target_timeval(arg3, 2990 &ovalue.it_interval); 2991 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 2992 &ovalue.it_value); 2993 } 2994 } 2995 break; 2996 case TARGET_NR_getitimer: 2997 { 2998 struct itimerval value; 2999 3000 ret = get_errno(getitimer(arg1, &value)); 3001 if (!is_error(ret) && arg2) { 3002 host_to_target_timeval(arg2, 3003 &value.it_interval); 3004 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3005 &value.it_value); 3006 } 3007 } 3008 break; 3009 case TARGET_NR_stat: 3010 p = lock_user_string(arg1); 3011 ret = get_errno(stat(path(p), &st)); 3012 unlock_user(p, arg1, 0); 3013 goto do_stat; 3014 case TARGET_NR_lstat: 3015 p = lock_user_string(arg1); 3016 ret = get_errno(lstat(path(p), &st)); 3017 unlock_user(p, arg1, 0); 3018 goto do_stat; 3019 case TARGET_NR_fstat: 3020 { 3021 ret = get_errno(fstat(arg1, &st)); 3022 do_stat: 3023 if (!is_error(ret)) { 3024 struct target_stat *target_st; 3025 3026 lock_user_struct(target_st, arg2, 0); 3027 target_st->st_dev = tswap16(st.st_dev); 3028 target_st->st_ino = tswapl(st.st_ino); 3029 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3030 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3031 target_st->st_uid = tswap32(st.st_uid); 3032 target_st->st_gid = tswap32(st.st_gid); 3033 #else 3034 target_st->st_mode = tswap16(st.st_mode); 3035 target_st->st_uid = tswap16(st.st_uid); 3036 target_st->st_gid = tswap16(st.st_gid); 3037 #endif 3038 target_st->st_nlink = tswap16(st.st_nlink); 3039 target_st->st_rdev = tswap16(st.st_rdev); 3040 target_st->st_size = tswapl(st.st_size); 3041 target_st->st_blksize = tswapl(st.st_blksize); 3042 target_st->st_blocks = tswapl(st.st_blocks); 3043 target_st->target_st_atime = tswapl(st.st_atime); 3044 target_st->target_st_mtime = tswapl(st.st_mtime); 3045 target_st->target_st_ctime = tswapl(st.st_ctime); 3046 unlock_user_struct(target_st, arg2, 1); 3047 } 3048 } 3049 break; 3050 #ifdef TARGET_NR_olduname 3051 case TARGET_NR_olduname: 3052 goto unimplemented; 3053 #endif 3054 #ifdef TARGET_NR_iopl 3055 case TARGET_NR_iopl: 3056 goto unimplemented; 3057 #endif 3058 case TARGET_NR_vhangup: 3059 ret = get_errno(vhangup()); 3060 break; 3061 #ifdef TARGET_NR_idle 3062 case TARGET_NR_idle: 3063 goto unimplemented; 3064 #endif 3065 #ifdef TARGET_NR_syscall 3066 case TARGET_NR_syscall: 3067 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3068 break; 3069 #endif 3070 case TARGET_NR_wait4: 3071 { 3072 int status; 3073 target_long status_ptr = arg2; 3074 struct rusage rusage, *rusage_ptr; 3075 target_ulong target_rusage = arg4; 3076 if (target_rusage) 3077 rusage_ptr = &rusage; 3078 else 3079 rusage_ptr = NULL; 3080 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3081 if (!is_error(ret)) { 3082 if (status_ptr) 3083 tputl(status_ptr, status); 3084 if (target_rusage) { 3085 host_to_target_rusage(target_rusage, &rusage); 3086 } 3087 } 3088 } 3089 break; 3090 case TARGET_NR_swapoff: 3091 p = lock_user_string(arg1); 3092 ret = get_errno(swapoff(p)); 3093 unlock_user(p, arg1, 0); 3094 break; 3095 case TARGET_NR_sysinfo: 3096 { 3097 struct target_sysinfo *target_value; 3098 struct sysinfo value; 3099 ret = get_errno(sysinfo(&value)); 3100 if (!is_error(ret) && arg1) 3101 { 3102 /* ??? __put_user is probably wrong. */ 3103 lock_user_struct(target_value, arg1, 0); 3104 __put_user(value.uptime, &target_value->uptime); 3105 __put_user(value.loads[0], &target_value->loads[0]); 3106 __put_user(value.loads[1], &target_value->loads[1]); 3107 __put_user(value.loads[2], &target_value->loads[2]); 3108 __put_user(value.totalram, &target_value->totalram); 3109 __put_user(value.freeram, &target_value->freeram); 3110 __put_user(value.sharedram, &target_value->sharedram); 3111 __put_user(value.bufferram, &target_value->bufferram); 3112 __put_user(value.totalswap, &target_value->totalswap); 3113 __put_user(value.freeswap, &target_value->freeswap); 3114 __put_user(value.procs, &target_value->procs); 3115 __put_user(value.totalhigh, &target_value->totalhigh); 3116 __put_user(value.freehigh, &target_value->freehigh); 3117 __put_user(value.mem_unit, &target_value->mem_unit); 3118 unlock_user_struct(target_value, arg1, 1); 3119 } 3120 } 3121 break; 3122 case TARGET_NR_ipc: 3123 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3124 break; 3125 case TARGET_NR_fsync: 3126 ret = get_errno(fsync(arg1)); 3127 break; 3128 case TARGET_NR_clone: 3129 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3130 break; 3131 #ifdef __NR_exit_group 3132 /* new thread calls */ 3133 case TARGET_NR_exit_group: 3134 gdb_exit(cpu_env, arg1); 3135 ret = get_errno(exit_group(arg1)); 3136 break; 3137 #endif 3138 case TARGET_NR_setdomainname: 3139 p = lock_user_string(arg1); 3140 ret = get_errno(setdomainname(p, arg2)); 3141 unlock_user(p, arg1, 0); 3142 break; 3143 case TARGET_NR_uname: 3144 /* no need to transcode because we use the linux syscall */ 3145 { 3146 struct new_utsname * buf; 3147 3148 lock_user_struct(buf, arg1, 0); 3149 ret = get_errno(sys_uname(buf)); 3150 if (!is_error(ret)) { 3151 /* Overrite the native machine name with whatever is being 3152 emulated. */ 3153 strcpy (buf->machine, UNAME_MACHINE); 3154 /* Allow the user to override the reported release. */ 3155 if (qemu_uname_release && *qemu_uname_release) 3156 strcpy (buf->release, qemu_uname_release); 3157 } 3158 unlock_user_struct(buf, arg1, 1); 3159 } 3160 break; 3161 #ifdef TARGET_I386 3162 case TARGET_NR_modify_ldt: 3163 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3164 break; 3165 case TARGET_NR_vm86old: 3166 goto unimplemented; 3167 case TARGET_NR_vm86: 3168 ret = do_vm86(cpu_env, arg1, arg2); 3169 break; 3170 #endif 3171 case TARGET_NR_adjtimex: 3172 goto unimplemented; 3173 case TARGET_NR_create_module: 3174 case TARGET_NR_init_module: 3175 case TARGET_NR_delete_module: 3176 case TARGET_NR_get_kernel_syms: 3177 goto unimplemented; 3178 case TARGET_NR_quotactl: 3179 goto unimplemented; 3180 case TARGET_NR_getpgid: 3181 ret = get_errno(getpgid(arg1)); 3182 break; 3183 case TARGET_NR_fchdir: 3184 ret = get_errno(fchdir(arg1)); 3185 break; 3186 case TARGET_NR_bdflush: 3187 goto unimplemented; 3188 case TARGET_NR_sysfs: 3189 goto unimplemented; 3190 case TARGET_NR_personality: 3191 ret = get_errno(personality(arg1)); 3192 break; 3193 case TARGET_NR_afs_syscall: 3194 goto unimplemented; 3195 case TARGET_NR__llseek: 3196 { 3197 #if defined (__x86_64__) 3198 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3199 tput64(arg4, ret); 3200 #else 3201 int64_t res; 3202 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3203 tput64(arg4, res); 3204 #endif 3205 } 3206 break; 3207 case TARGET_NR_getdents: 3208 #if TARGET_LONG_SIZE != 4 3209 goto unimplemented; 3210 #warning not supported 3211 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3212 { 3213 struct target_dirent *target_dirp; 3214 struct dirent *dirp; 3215 long count = arg3; 3216 3217 dirp = malloc(count); 3218 if (!dirp) 3219 return -ENOMEM; 3220 3221 ret = get_errno(sys_getdents(arg1, dirp, count)); 3222 if (!is_error(ret)) { 3223 struct dirent *de; 3224 struct target_dirent *tde; 3225 int len = ret; 3226 int reclen, treclen; 3227 int count1, tnamelen; 3228 3229 count1 = 0; 3230 de = dirp; 3231 target_dirp = lock_user(arg2, count, 0); 3232 tde = target_dirp; 3233 while (len > 0) { 3234 reclen = de->d_reclen; 3235 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3236 tde->d_reclen = tswap16(treclen); 3237 tde->d_ino = tswapl(de->d_ino); 3238 tde->d_off = tswapl(de->d_off); 3239 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3240 if (tnamelen > 256) 3241 tnamelen = 256; 3242 /* XXX: may not be correct */ 3243 strncpy(tde->d_name, de->d_name, tnamelen); 3244 de = (struct dirent *)((char *)de + reclen); 3245 len -= reclen; 3246 tde = (struct dirent *)((char *)tde + treclen); 3247 count1 += treclen; 3248 } 3249 ret = count1; 3250 } 3251 unlock_user(target_dirp, arg2, ret); 3252 free(dirp); 3253 } 3254 #else 3255 { 3256 struct dirent *dirp; 3257 long count = arg3; 3258 3259 dirp = lock_user(arg2, count, 0); 3260 ret = get_errno(sys_getdents(arg1, dirp, count)); 3261 if (!is_error(ret)) { 3262 struct dirent *de; 3263 int len = ret; 3264 int reclen; 3265 de = dirp; 3266 while (len > 0) { 3267 reclen = de->d_reclen; 3268 if (reclen > len) 3269 break; 3270 de->d_reclen = tswap16(reclen); 3271 tswapls(&de->d_ino); 3272 tswapls(&de->d_off); 3273 de = (struct dirent *)((char *)de + reclen); 3274 len -= reclen; 3275 } 3276 } 3277 unlock_user(dirp, arg2, ret); 3278 } 3279 #endif 3280 break; 3281 #ifdef TARGET_NR_getdents64 3282 case TARGET_NR_getdents64: 3283 { 3284 struct dirent64 *dirp; 3285 long count = arg3; 3286 dirp = lock_user(arg2, count, 0); 3287 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3288 if (!is_error(ret)) { 3289 struct dirent64 *de; 3290 int len = ret; 3291 int reclen; 3292 de = dirp; 3293 while (len > 0) { 3294 reclen = de->d_reclen; 3295 if (reclen > len) 3296 break; 3297 de->d_reclen = tswap16(reclen); 3298 tswap64s(&de->d_ino); 3299 tswap64s(&de->d_off); 3300 de = (struct dirent64 *)((char *)de + reclen); 3301 len -= reclen; 3302 } 3303 } 3304 unlock_user(dirp, arg2, ret); 3305 } 3306 break; 3307 #endif /* TARGET_NR_getdents64 */ 3308 case TARGET_NR__newselect: 3309 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3310 break; 3311 case TARGET_NR_poll: 3312 { 3313 struct target_pollfd *target_pfd; 3314 unsigned int nfds = arg2; 3315 int timeout = arg3; 3316 struct pollfd *pfd; 3317 unsigned int i; 3318 3319 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3320 pfd = alloca(sizeof(struct pollfd) * nfds); 3321 for(i = 0; i < nfds; i++) { 3322 pfd[i].fd = tswap32(target_pfd[i].fd); 3323 pfd[i].events = tswap16(target_pfd[i].events); 3324 } 3325 ret = get_errno(poll(pfd, nfds, timeout)); 3326 if (!is_error(ret)) { 3327 for(i = 0; i < nfds; i++) { 3328 target_pfd[i].revents = tswap16(pfd[i].revents); 3329 } 3330 ret += nfds * (sizeof(struct target_pollfd) 3331 - sizeof(struct pollfd)); 3332 } 3333 unlock_user(target_pfd, arg1, ret); 3334 } 3335 break; 3336 case TARGET_NR_flock: 3337 /* NOTE: the flock constant seems to be the same for every 3338 Linux platform */ 3339 ret = get_errno(flock(arg1, arg2)); 3340 break; 3341 case TARGET_NR_readv: 3342 { 3343 int count = arg3; 3344 struct iovec *vec; 3345 3346 vec = alloca(count * sizeof(struct iovec)); 3347 lock_iovec(vec, arg2, count, 0); 3348 ret = get_errno(readv(arg1, vec, count)); 3349 unlock_iovec(vec, arg2, count, 1); 3350 } 3351 break; 3352 case TARGET_NR_writev: 3353 { 3354 int count = arg3; 3355 struct iovec *vec; 3356 3357 vec = alloca(count * sizeof(struct iovec)); 3358 lock_iovec(vec, arg2, count, 1); 3359 ret = get_errno(writev(arg1, vec, count)); 3360 unlock_iovec(vec, arg2, count, 0); 3361 } 3362 break; 3363 case TARGET_NR_getsid: 3364 ret = get_errno(getsid(arg1)); 3365 break; 3366 case TARGET_NR_fdatasync: 3367 ret = get_errno(fdatasync(arg1)); 3368 break; 3369 case TARGET_NR__sysctl: 3370 /* We don't implement this, but ENODIR is always a safe 3371 return value. */ 3372 return -ENOTDIR; 3373 case TARGET_NR_sched_setparam: 3374 { 3375 struct sched_param *target_schp; 3376 struct sched_param schp; 3377 3378 lock_user_struct(target_schp, arg2, 1); 3379 schp.sched_priority = tswap32(target_schp->sched_priority); 3380 unlock_user_struct(target_schp, arg2, 0); 3381 ret = get_errno(sched_setparam(arg1, &schp)); 3382 } 3383 break; 3384 case TARGET_NR_sched_getparam: 3385 { 3386 struct sched_param *target_schp; 3387 struct sched_param schp; 3388 ret = get_errno(sched_getparam(arg1, &schp)); 3389 if (!is_error(ret)) { 3390 lock_user_struct(target_schp, arg2, 0); 3391 target_schp->sched_priority = tswap32(schp.sched_priority); 3392 unlock_user_struct(target_schp, arg2, 1); 3393 } 3394 } 3395 break; 3396 case TARGET_NR_sched_setscheduler: 3397 { 3398 struct sched_param *target_schp; 3399 struct sched_param schp; 3400 lock_user_struct(target_schp, arg3, 1); 3401 schp.sched_priority = tswap32(target_schp->sched_priority); 3402 unlock_user_struct(target_schp, arg3, 0); 3403 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 3404 } 3405 break; 3406 case TARGET_NR_sched_getscheduler: 3407 ret = get_errno(sched_getscheduler(arg1)); 3408 break; 3409 case TARGET_NR_sched_yield: 3410 ret = get_errno(sched_yield()); 3411 break; 3412 case TARGET_NR_sched_get_priority_max: 3413 ret = get_errno(sched_get_priority_max(arg1)); 3414 break; 3415 case TARGET_NR_sched_get_priority_min: 3416 ret = get_errno(sched_get_priority_min(arg1)); 3417 break; 3418 case TARGET_NR_sched_rr_get_interval: 3419 { 3420 struct timespec ts; 3421 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 3422 if (!is_error(ret)) { 3423 host_to_target_timespec(arg2, &ts); 3424 } 3425 } 3426 break; 3427 case TARGET_NR_nanosleep: 3428 { 3429 struct timespec req, rem; 3430 target_to_host_timespec(&req, arg1); 3431 ret = get_errno(nanosleep(&req, &rem)); 3432 if (is_error(ret) && arg2) { 3433 host_to_target_timespec(arg2, &rem); 3434 } 3435 } 3436 break; 3437 case TARGET_NR_query_module: 3438 goto unimplemented; 3439 case TARGET_NR_nfsservctl: 3440 goto unimplemented; 3441 case TARGET_NR_prctl: 3442 switch (arg1) 3443 { 3444 case PR_GET_PDEATHSIG: 3445 { 3446 int deathsig; 3447 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 3448 if (!is_error(ret) && arg2) 3449 tput32(arg2, deathsig); 3450 } 3451 break; 3452 default: 3453 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 3454 break; 3455 } 3456 break; 3457 #ifdef TARGET_NR_pread 3458 case TARGET_NR_pread: 3459 page_unprotect_range(arg2, arg3); 3460 p = lock_user(arg2, arg3, 0); 3461 ret = get_errno(pread(arg1, p, arg3, arg4)); 3462 unlock_user(p, arg2, ret); 3463 break; 3464 case TARGET_NR_pwrite: 3465 p = lock_user(arg2, arg3, 1); 3466 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 3467 unlock_user(p, arg2, 0); 3468 break; 3469 #endif 3470 case TARGET_NR_getcwd: 3471 p = lock_user(arg1, arg2, 0); 3472 ret = get_errno(sys_getcwd1(p, arg2)); 3473 unlock_user(p, arg1, ret); 3474 break; 3475 case TARGET_NR_capget: 3476 goto unimplemented; 3477 case TARGET_NR_capset: 3478 goto unimplemented; 3479 case TARGET_NR_sigaltstack: 3480 goto unimplemented; 3481 case TARGET_NR_sendfile: 3482 goto unimplemented; 3483 #ifdef TARGET_NR_getpmsg 3484 case TARGET_NR_getpmsg: 3485 goto unimplemented; 3486 #endif 3487 #ifdef TARGET_NR_putpmsg 3488 case TARGET_NR_putpmsg: 3489 goto unimplemented; 3490 #endif 3491 #ifdef TARGET_NR_vfork 3492 case TARGET_NR_vfork: 3493 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 3494 break; 3495 #endif 3496 #ifdef TARGET_NR_ugetrlimit 3497 case TARGET_NR_ugetrlimit: 3498 { 3499 struct rlimit rlim; 3500 ret = get_errno(getrlimit(arg1, &rlim)); 3501 if (!is_error(ret)) { 3502 struct target_rlimit *target_rlim; 3503 lock_user_struct(target_rlim, arg2, 0); 3504 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 3505 target_rlim->rlim_max = tswapl(rlim.rlim_max); 3506 unlock_user_struct(target_rlim, arg2, 1); 3507 } 3508 break; 3509 } 3510 #endif 3511 #ifdef TARGET_NR_truncate64 3512 case TARGET_NR_truncate64: 3513 p = lock_user_string(arg1); 3514 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 3515 unlock_user(p, arg1, 0); 3516 break; 3517 #endif 3518 #ifdef TARGET_NR_ftruncate64 3519 case TARGET_NR_ftruncate64: 3520 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 3521 break; 3522 #endif 3523 #ifdef TARGET_NR_stat64 3524 case TARGET_NR_stat64: 3525 p = lock_user_string(arg1); 3526 ret = get_errno(stat(path(p), &st)); 3527 unlock_user(p, arg1, 0); 3528 goto do_stat64; 3529 #endif 3530 #ifdef TARGET_NR_lstat64 3531 case TARGET_NR_lstat64: 3532 p = lock_user_string(arg1); 3533 ret = get_errno(lstat(path(p), &st)); 3534 unlock_user(p, arg1, 0); 3535 goto do_stat64; 3536 #endif 3537 #ifdef TARGET_NR_fstat64 3538 case TARGET_NR_fstat64: 3539 { 3540 ret = get_errno(fstat(arg1, &st)); 3541 do_stat64: 3542 if (!is_error(ret)) { 3543 #ifdef TARGET_ARM 3544 if (((CPUARMState *)cpu_env)->eabi) { 3545 struct target_eabi_stat64 *target_st; 3546 lock_user_struct(target_st, arg2, 1); 3547 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 3548 /* put_user is probably wrong. */ 3549 put_user(st.st_dev, &target_st->st_dev); 3550 put_user(st.st_ino, &target_st->st_ino); 3551 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3552 put_user(st.st_ino, &target_st->__st_ino); 3553 #endif 3554 put_user(st.st_mode, &target_st->st_mode); 3555 put_user(st.st_nlink, &target_st->st_nlink); 3556 put_user(st.st_uid, &target_st->st_uid); 3557 put_user(st.st_gid, &target_st->st_gid); 3558 put_user(st.st_rdev, &target_st->st_rdev); 3559 /* XXX: better use of kernel struct */ 3560 put_user(st.st_size, &target_st->st_size); 3561 put_user(st.st_blksize, &target_st->st_blksize); 3562 put_user(st.st_blocks, &target_st->st_blocks); 3563 put_user(st.st_atime, &target_st->target_st_atime); 3564 put_user(st.st_mtime, &target_st->target_st_mtime); 3565 put_user(st.st_ctime, &target_st->target_st_ctime); 3566 unlock_user_struct(target_st, arg2, 0); 3567 } else 3568 #endif 3569 { 3570 struct target_stat64 *target_st; 3571 lock_user_struct(target_st, arg2, 1); 3572 memset(target_st, 0, sizeof(struct target_stat64)); 3573 /* ??? put_user is probably wrong. */ 3574 put_user(st.st_dev, &target_st->st_dev); 3575 put_user(st.st_ino, &target_st->st_ino); 3576 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3577 put_user(st.st_ino, &target_st->__st_ino); 3578 #endif 3579 put_user(st.st_mode, &target_st->st_mode); 3580 put_user(st.st_nlink, &target_st->st_nlink); 3581 put_user(st.st_uid, &target_st->st_uid); 3582 put_user(st.st_gid, &target_st->st_gid); 3583 put_user(st.st_rdev, &target_st->st_rdev); 3584 /* XXX: better use of kernel struct */ 3585 put_user(st.st_size, &target_st->st_size); 3586 put_user(st.st_blksize, &target_st->st_blksize); 3587 put_user(st.st_blocks, &target_st->st_blocks); 3588 put_user(st.st_atime, &target_st->target_st_atime); 3589 put_user(st.st_mtime, &target_st->target_st_mtime); 3590 put_user(st.st_ctime, &target_st->target_st_ctime); 3591 unlock_user_struct(target_st, arg2, 0); 3592 } 3593 } 3594 } 3595 break; 3596 #endif 3597 #ifdef USE_UID16 3598 case TARGET_NR_lchown: 3599 p = lock_user_string(arg1); 3600 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 3601 unlock_user(p, arg1, 0); 3602 break; 3603 case TARGET_NR_getuid: 3604 ret = get_errno(high2lowuid(getuid())); 3605 break; 3606 case TARGET_NR_getgid: 3607 ret = get_errno(high2lowgid(getgid())); 3608 break; 3609 case TARGET_NR_geteuid: 3610 ret = get_errno(high2lowuid(geteuid())); 3611 break; 3612 case TARGET_NR_getegid: 3613 ret = get_errno(high2lowgid(getegid())); 3614 break; 3615 case TARGET_NR_setreuid: 3616 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 3617 break; 3618 case TARGET_NR_setregid: 3619 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 3620 break; 3621 case TARGET_NR_getgroups: 3622 { 3623 int gidsetsize = arg1; 3624 uint16_t *target_grouplist; 3625 gid_t *grouplist; 3626 int i; 3627 3628 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3629 ret = get_errno(getgroups(gidsetsize, grouplist)); 3630 if (!is_error(ret)) { 3631 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 3632 for(i = 0;i < gidsetsize; i++) 3633 target_grouplist[i] = tswap16(grouplist[i]); 3634 unlock_user(target_grouplist, arg2, gidsetsize * 2); 3635 } 3636 } 3637 break; 3638 case TARGET_NR_setgroups: 3639 { 3640 int gidsetsize = arg1; 3641 uint16_t *target_grouplist; 3642 gid_t *grouplist; 3643 int i; 3644 3645 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3646 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 3647 for(i = 0;i < gidsetsize; i++) 3648 grouplist[i] = tswap16(target_grouplist[i]); 3649 unlock_user(target_grouplist, arg2, 0); 3650 ret = get_errno(setgroups(gidsetsize, grouplist)); 3651 } 3652 break; 3653 case TARGET_NR_fchown: 3654 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 3655 break; 3656 #ifdef TARGET_NR_setresuid 3657 case TARGET_NR_setresuid: 3658 ret = get_errno(setresuid(low2highuid(arg1), 3659 low2highuid(arg2), 3660 low2highuid(arg3))); 3661 break; 3662 #endif 3663 #ifdef TARGET_NR_getresuid 3664 case TARGET_NR_getresuid: 3665 { 3666 uid_t ruid, euid, suid; 3667 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3668 if (!is_error(ret)) { 3669 tput16(arg1, tswap16(high2lowuid(ruid))); 3670 tput16(arg2, tswap16(high2lowuid(euid))); 3671 tput16(arg3, tswap16(high2lowuid(suid))); 3672 } 3673 } 3674 break; 3675 #endif 3676 #ifdef TARGET_NR_getresgid 3677 case TARGET_NR_setresgid: 3678 ret = get_errno(setresgid(low2highgid(arg1), 3679 low2highgid(arg2), 3680 low2highgid(arg3))); 3681 break; 3682 #endif 3683 #ifdef TARGET_NR_getresgid 3684 case TARGET_NR_getresgid: 3685 { 3686 gid_t rgid, egid, sgid; 3687 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3688 if (!is_error(ret)) { 3689 tput16(arg1, tswap16(high2lowgid(rgid))); 3690 tput16(arg2, tswap16(high2lowgid(egid))); 3691 tput16(arg3, tswap16(high2lowgid(sgid))); 3692 } 3693 } 3694 break; 3695 #endif 3696 case TARGET_NR_chown: 3697 p = lock_user_string(arg1); 3698 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 3699 unlock_user(p, arg1, 0); 3700 break; 3701 case TARGET_NR_setuid: 3702 ret = get_errno(setuid(low2highuid(arg1))); 3703 break; 3704 case TARGET_NR_setgid: 3705 ret = get_errno(setgid(low2highgid(arg1))); 3706 break; 3707 case TARGET_NR_setfsuid: 3708 ret = get_errno(setfsuid(arg1)); 3709 break; 3710 case TARGET_NR_setfsgid: 3711 ret = get_errno(setfsgid(arg1)); 3712 break; 3713 #endif /* USE_UID16 */ 3714 3715 #ifdef TARGET_NR_lchown32 3716 case TARGET_NR_lchown32: 3717 p = lock_user_string(arg1); 3718 ret = get_errno(lchown(p, arg2, arg3)); 3719 unlock_user(p, arg1, 0); 3720 break; 3721 #endif 3722 #ifdef TARGET_NR_getuid32 3723 case TARGET_NR_getuid32: 3724 ret = get_errno(getuid()); 3725 break; 3726 #endif 3727 #ifdef TARGET_NR_getgid32 3728 case TARGET_NR_getgid32: 3729 ret = get_errno(getgid()); 3730 break; 3731 #endif 3732 #ifdef TARGET_NR_geteuid32 3733 case TARGET_NR_geteuid32: 3734 ret = get_errno(geteuid()); 3735 break; 3736 #endif 3737 #ifdef TARGET_NR_getegid32 3738 case TARGET_NR_getegid32: 3739 ret = get_errno(getegid()); 3740 break; 3741 #endif 3742 #ifdef TARGET_NR_setreuid32 3743 case TARGET_NR_setreuid32: 3744 ret = get_errno(setreuid(arg1, arg2)); 3745 break; 3746 #endif 3747 #ifdef TARGET_NR_setregid32 3748 case TARGET_NR_setregid32: 3749 ret = get_errno(setregid(arg1, arg2)); 3750 break; 3751 #endif 3752 #ifdef TARGET_NR_getgroups32 3753 case TARGET_NR_getgroups32: 3754 { 3755 int gidsetsize = arg1; 3756 uint32_t *target_grouplist; 3757 gid_t *grouplist; 3758 int i; 3759 3760 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3761 ret = get_errno(getgroups(gidsetsize, grouplist)); 3762 if (!is_error(ret)) { 3763 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 3764 for(i = 0;i < gidsetsize; i++) 3765 target_grouplist[i] = tswap32(grouplist[i]); 3766 unlock_user(target_grouplist, arg2, gidsetsize * 4); 3767 } 3768 } 3769 break; 3770 #endif 3771 #ifdef TARGET_NR_setgroups32 3772 case TARGET_NR_setgroups32: 3773 { 3774 int gidsetsize = arg1; 3775 uint32_t *target_grouplist; 3776 gid_t *grouplist; 3777 int i; 3778 3779 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3780 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 3781 for(i = 0;i < gidsetsize; i++) 3782 grouplist[i] = tswap32(target_grouplist[i]); 3783 unlock_user(target_grouplist, arg2, 0); 3784 ret = get_errno(setgroups(gidsetsize, grouplist)); 3785 } 3786 break; 3787 #endif 3788 #ifdef TARGET_NR_fchown32 3789 case TARGET_NR_fchown32: 3790 ret = get_errno(fchown(arg1, arg2, arg3)); 3791 break; 3792 #endif 3793 #ifdef TARGET_NR_setresuid32 3794 case TARGET_NR_setresuid32: 3795 ret = get_errno(setresuid(arg1, arg2, arg3)); 3796 break; 3797 #endif 3798 #ifdef TARGET_NR_getresuid32 3799 case TARGET_NR_getresuid32: 3800 { 3801 uid_t ruid, euid, suid; 3802 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3803 if (!is_error(ret)) { 3804 tput32(arg1, tswap32(ruid)); 3805 tput32(arg2, tswap32(euid)); 3806 tput32(arg3, tswap32(suid)); 3807 } 3808 } 3809 break; 3810 #endif 3811 #ifdef TARGET_NR_setresgid32 3812 case TARGET_NR_setresgid32: 3813 ret = get_errno(setresgid(arg1, arg2, arg3)); 3814 break; 3815 #endif 3816 #ifdef TARGET_NR_getresgid32 3817 case TARGET_NR_getresgid32: 3818 { 3819 gid_t rgid, egid, sgid; 3820 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3821 if (!is_error(ret)) { 3822 tput32(arg1, tswap32(rgid)); 3823 tput32(arg2, tswap32(egid)); 3824 tput32(arg3, tswap32(sgid)); 3825 } 3826 } 3827 break; 3828 #endif 3829 #ifdef TARGET_NR_chown32 3830 case TARGET_NR_chown32: 3831 p = lock_user_string(arg1); 3832 ret = get_errno(chown(p, arg2, arg3)); 3833 unlock_user(p, arg1, 0); 3834 break; 3835 #endif 3836 #ifdef TARGET_NR_setuid32 3837 case TARGET_NR_setuid32: 3838 ret = get_errno(setuid(arg1)); 3839 break; 3840 #endif 3841 #ifdef TARGET_NR_setgid32 3842 case TARGET_NR_setgid32: 3843 ret = get_errno(setgid(arg1)); 3844 break; 3845 #endif 3846 #ifdef TARGET_NR_setfsuid32 3847 case TARGET_NR_setfsuid32: 3848 ret = get_errno(setfsuid(arg1)); 3849 break; 3850 #endif 3851 #ifdef TARGET_NR_setfsgid32 3852 case TARGET_NR_setfsgid32: 3853 ret = get_errno(setfsgid(arg1)); 3854 break; 3855 #endif 3856 3857 case TARGET_NR_pivot_root: 3858 goto unimplemented; 3859 #ifdef TARGET_NR_mincore 3860 case TARGET_NR_mincore: 3861 goto unimplemented; 3862 #endif 3863 #ifdef TARGET_NR_madvise 3864 case TARGET_NR_madvise: 3865 /* A straight passthrough may not be safe because qemu sometimes 3866 turns private flie-backed mappings into anonymous mappings. 3867 This will break MADV_DONTNEED. 3868 This is a hint, so ignoring and returning success is ok. */ 3869 ret = get_errno(0); 3870 break; 3871 #endif 3872 #if TARGET_LONG_BITS == 32 3873 case TARGET_NR_fcntl64: 3874 { 3875 int cmd; 3876 struct flock64 fl; 3877 struct target_flock64 *target_fl; 3878 #ifdef TARGET_ARM 3879 struct target_eabi_flock64 *target_efl; 3880 #endif 3881 3882 switch(arg2){ 3883 case TARGET_F_GETLK64: 3884 cmd = F_GETLK64; 3885 case TARGET_F_SETLK64: 3886 cmd = F_SETLK64; 3887 case TARGET_F_SETLKW64: 3888 cmd = F_SETLK64; 3889 default: 3890 cmd = arg2; 3891 } 3892 3893 switch(arg2) { 3894 case TARGET_F_GETLK64: 3895 ret = get_errno(fcntl(arg1, cmd, &fl)); 3896 if (ret == 0) { 3897 #ifdef TARGET_ARM 3898 if (((CPUARMState *)cpu_env)->eabi) { 3899 lock_user_struct(target_efl, arg3, 0); 3900 target_efl->l_type = tswap16(fl.l_type); 3901 target_efl->l_whence = tswap16(fl.l_whence); 3902 target_efl->l_start = tswap64(fl.l_start); 3903 target_efl->l_len = tswap64(fl.l_len); 3904 target_efl->l_pid = tswapl(fl.l_pid); 3905 unlock_user_struct(target_efl, arg3, 1); 3906 } else 3907 #endif 3908 { 3909 lock_user_struct(target_fl, arg3, 0); 3910 target_fl->l_type = tswap16(fl.l_type); 3911 target_fl->l_whence = tswap16(fl.l_whence); 3912 target_fl->l_start = tswap64(fl.l_start); 3913 target_fl->l_len = tswap64(fl.l_len); 3914 target_fl->l_pid = tswapl(fl.l_pid); 3915 unlock_user_struct(target_fl, arg3, 1); 3916 } 3917 } 3918 break; 3919 3920 case TARGET_F_SETLK64: 3921 case TARGET_F_SETLKW64: 3922 #ifdef TARGET_ARM 3923 if (((CPUARMState *)cpu_env)->eabi) { 3924 lock_user_struct(target_efl, arg3, 1); 3925 fl.l_type = tswap16(target_efl->l_type); 3926 fl.l_whence = tswap16(target_efl->l_whence); 3927 fl.l_start = tswap64(target_efl->l_start); 3928 fl.l_len = tswap64(target_efl->l_len); 3929 fl.l_pid = tswapl(target_efl->l_pid); 3930 unlock_user_struct(target_efl, arg3, 0); 3931 } else 3932 #endif 3933 { 3934 lock_user_struct(target_fl, arg3, 1); 3935 fl.l_type = tswap16(target_fl->l_type); 3936 fl.l_whence = tswap16(target_fl->l_whence); 3937 fl.l_start = tswap64(target_fl->l_start); 3938 fl.l_len = tswap64(target_fl->l_len); 3939 fl.l_pid = tswapl(target_fl->l_pid); 3940 unlock_user_struct(target_fl, arg3, 0); 3941 } 3942 ret = get_errno(fcntl(arg1, cmd, &fl)); 3943 break; 3944 default: 3945 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 3946 break; 3947 } 3948 break; 3949 } 3950 #endif 3951 #ifdef TARGET_NR_cacheflush 3952 case TARGET_NR_cacheflush: 3953 /* self-modifying code is handled automatically, so nothing needed */ 3954 ret = 0; 3955 break; 3956 #endif 3957 #ifdef TARGET_NR_security 3958 case TARGET_NR_security: 3959 goto unimplemented; 3960 #endif 3961 #ifdef TARGET_NR_getpagesize 3962 case TARGET_NR_getpagesize: 3963 ret = TARGET_PAGE_SIZE; 3964 break; 3965 #endif 3966 case TARGET_NR_gettid: 3967 ret = get_errno(gettid()); 3968 break; 3969 case TARGET_NR_readahead: 3970 goto unimplemented; 3971 #ifdef TARGET_NR_setxattr 3972 case TARGET_NR_setxattr: 3973 case TARGET_NR_lsetxattr: 3974 case TARGET_NR_fsetxattr: 3975 case TARGET_NR_getxattr: 3976 case TARGET_NR_lgetxattr: 3977 case TARGET_NR_fgetxattr: 3978 case TARGET_NR_listxattr: 3979 case TARGET_NR_llistxattr: 3980 case TARGET_NR_flistxattr: 3981 case TARGET_NR_removexattr: 3982 case TARGET_NR_lremovexattr: 3983 case TARGET_NR_fremovexattr: 3984 goto unimplemented_nowarn; 3985 #endif 3986 #ifdef TARGET_NR_set_thread_area 3987 case TARGET_NR_set_thread_area: 3988 #ifdef TARGET_MIPS 3989 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 3990 ret = 0; 3991 break; 3992 #else 3993 goto unimplemented_nowarn; 3994 #endif 3995 #endif 3996 #ifdef TARGET_NR_get_thread_area 3997 case TARGET_NR_get_thread_area: 3998 goto unimplemented_nowarn; 3999 #endif 4000 #ifdef TARGET_NR_getdomainname 4001 case TARGET_NR_getdomainname: 4002 goto unimplemented_nowarn; 4003 #endif 4004 4005 #ifdef TARGET_NR_clock_gettime 4006 case TARGET_NR_clock_gettime: 4007 { 4008 struct timespec ts; 4009 ret = get_errno(clock_gettime(arg1, &ts)); 4010 if (!is_error(ret)) { 4011 host_to_target_timespec(arg2, &ts); 4012 } 4013 break; 4014 } 4015 #endif 4016 #ifdef TARGET_NR_clock_getres 4017 case TARGET_NR_clock_getres: 4018 { 4019 struct timespec ts; 4020 ret = get_errno(clock_getres(arg1, &ts)); 4021 if (!is_error(ret)) { 4022 host_to_target_timespec(arg2, &ts); 4023 } 4024 break; 4025 } 4026 #endif 4027 4028 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 4029 case TARGET_NR_set_tid_address: 4030 ret = get_errno(set_tid_address((int *) arg1)); 4031 break; 4032 #endif 4033 4034 default: 4035 unimplemented: 4036 gemu_log("qemu: Unsupported syscall: %d\n", num); 4037 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) 4038 unimplemented_nowarn: 4039 #endif 4040 ret = -ENOSYS; 4041 break; 4042 } 4043 fail: 4044 #ifdef DEBUG 4045 gemu_log(" = %ld\n", ret); 4046 #endif 4047 return ret; 4048 } 4049 4050