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 lock_user_struct(target_fl, arg, 1); 1797 fl.l_type = tswap16(target_fl->l_type); 1798 fl.l_whence = tswap16(target_fl->l_whence); 1799 fl.l_start = tswapl(target_fl->l_start); 1800 fl.l_len = tswapl(target_fl->l_len); 1801 fl.l_pid = tswapl(target_fl->l_pid); 1802 unlock_user_struct(target_fl, arg, 0); 1803 ret = fcntl(fd, cmd, &fl); 1804 if (ret == 0) { 1805 lock_user_struct(target_fl, arg, 0); 1806 target_fl->l_type = tswap16(fl.l_type); 1807 target_fl->l_whence = tswap16(fl.l_whence); 1808 target_fl->l_start = tswapl(fl.l_start); 1809 target_fl->l_len = tswapl(fl.l_len); 1810 target_fl->l_pid = tswapl(fl.l_pid); 1811 unlock_user_struct(target_fl, arg, 1); 1812 } 1813 break; 1814 1815 case TARGET_F_SETLK: 1816 case TARGET_F_SETLKW: 1817 lock_user_struct(target_fl, arg, 1); 1818 fl.l_type = tswap16(target_fl->l_type); 1819 fl.l_whence = tswap16(target_fl->l_whence); 1820 fl.l_start = tswapl(target_fl->l_start); 1821 fl.l_len = tswapl(target_fl->l_len); 1822 fl.l_pid = tswapl(target_fl->l_pid); 1823 unlock_user_struct(target_fl, arg, 0); 1824 ret = fcntl(fd, cmd, &fl); 1825 break; 1826 1827 case TARGET_F_GETLK64: 1828 lock_user_struct(target_fl64, arg, 1); 1829 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 1830 fl64.l_whence = tswap16(target_fl64->l_whence); 1831 fl64.l_start = tswapl(target_fl64->l_start); 1832 fl64.l_len = tswapl(target_fl64->l_len); 1833 fl64.l_pid = tswap16(target_fl64->l_pid); 1834 unlock_user_struct(target_fl64, arg, 0); 1835 ret = fcntl(fd, cmd >> 1, &fl64); 1836 if (ret == 0) { 1837 lock_user_struct(target_fl64, arg, 0); 1838 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 1839 target_fl64->l_whence = tswap16(fl64.l_whence); 1840 target_fl64->l_start = tswapl(fl64.l_start); 1841 target_fl64->l_len = tswapl(fl64.l_len); 1842 target_fl64->l_pid = tswapl(fl64.l_pid); 1843 unlock_user_struct(target_fl64, arg, 1); 1844 } 1845 break; 1846 case TARGET_F_SETLK64: 1847 case TARGET_F_SETLKW64: 1848 lock_user_struct(target_fl64, arg, 1); 1849 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 1850 fl64.l_whence = tswap16(target_fl64->l_whence); 1851 fl64.l_start = tswapl(target_fl64->l_start); 1852 fl64.l_len = tswapl(target_fl64->l_len); 1853 fl64.l_pid = tswap16(target_fl64->l_pid); 1854 unlock_user_struct(target_fl64, arg, 0); 1855 ret = fcntl(fd, cmd >> 1, &fl64); 1856 break; 1857 1858 case F_GETFL: 1859 ret = fcntl(fd, cmd, arg); 1860 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 1861 break; 1862 1863 case F_SETFL: 1864 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 1865 break; 1866 1867 default: 1868 ret = fcntl(fd, cmd, arg); 1869 break; 1870 } 1871 return ret; 1872 } 1873 1874 #ifdef USE_UID16 1875 1876 static inline int high2lowuid(int uid) 1877 { 1878 if (uid > 65535) 1879 return 65534; 1880 else 1881 return uid; 1882 } 1883 1884 static inline int high2lowgid(int gid) 1885 { 1886 if (gid > 65535) 1887 return 65534; 1888 else 1889 return gid; 1890 } 1891 1892 static inline int low2highuid(int uid) 1893 { 1894 if ((int16_t)uid == -1) 1895 return -1; 1896 else 1897 return uid; 1898 } 1899 1900 static inline int low2highgid(int gid) 1901 { 1902 if ((int16_t)gid == -1) 1903 return -1; 1904 else 1905 return gid; 1906 } 1907 1908 #endif /* USE_UID16 */ 1909 1910 void syscall_init(void) 1911 { 1912 IOCTLEntry *ie; 1913 const argtype *arg_type; 1914 int size; 1915 1916 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1917 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1918 #include "syscall_types.h" 1919 #undef STRUCT 1920 #undef STRUCT_SPECIAL 1921 1922 /* we patch the ioctl size if necessary. We rely on the fact that 1923 no ioctl has all the bits at '1' in the size field */ 1924 ie = ioctl_entries; 1925 while (ie->target_cmd != 0) { 1926 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 1927 TARGET_IOC_SIZEMASK) { 1928 arg_type = ie->arg_type; 1929 if (arg_type[0] != TYPE_PTR) { 1930 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 1931 ie->target_cmd); 1932 exit(1); 1933 } 1934 arg_type++; 1935 size = thunk_type_size(arg_type, 0); 1936 ie->target_cmd = (ie->target_cmd & 1937 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 1938 (size << TARGET_IOC_SIZESHIFT); 1939 } 1940 /* automatic consistency check if same arch */ 1941 #if defined(__i386__) && defined(TARGET_I386) 1942 if (ie->target_cmd != ie->host_cmd) { 1943 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 1944 ie->target_cmd, ie->host_cmd); 1945 } 1946 #endif 1947 ie++; 1948 } 1949 } 1950 1951 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 1952 { 1953 #ifdef TARGET_WORDS_BIG_ENDIAN 1954 return ((uint64_t)word0 << 32) | word1; 1955 #else 1956 return ((uint64_t)word1 << 32) | word0; 1957 #endif 1958 } 1959 1960 #ifdef TARGET_NR_truncate64 1961 static inline long target_truncate64(void *cpu_env, const char *arg1, 1962 long arg2, long arg3, long arg4) 1963 { 1964 #ifdef TARGET_ARM 1965 if (((CPUARMState *)cpu_env)->eabi) 1966 { 1967 arg2 = arg3; 1968 arg3 = arg4; 1969 } 1970 #endif 1971 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 1972 } 1973 #endif 1974 1975 #ifdef TARGET_NR_ftruncate64 1976 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 1977 long arg3, long arg4) 1978 { 1979 #ifdef TARGET_ARM 1980 if (((CPUARMState *)cpu_env)->eabi) 1981 { 1982 arg2 = arg3; 1983 arg3 = arg4; 1984 } 1985 #endif 1986 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 1987 } 1988 #endif 1989 1990 static inline void target_to_host_timespec(struct timespec *host_ts, 1991 target_ulong target_addr) 1992 { 1993 struct target_timespec *target_ts; 1994 1995 lock_user_struct(target_ts, target_addr, 1); 1996 host_ts->tv_sec = tswapl(target_ts->tv_sec); 1997 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 1998 unlock_user_struct(target_ts, target_addr, 0); 1999 } 2000 2001 static inline void host_to_target_timespec(target_ulong target_addr, 2002 struct timespec *host_ts) 2003 { 2004 struct target_timespec *target_ts; 2005 2006 lock_user_struct(target_ts, target_addr, 0); 2007 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2008 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2009 unlock_user_struct(target_ts, target_addr, 1); 2010 } 2011 2012 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 2013 long arg4, long arg5, long arg6) 2014 { 2015 long ret; 2016 struct stat st; 2017 struct statfs stfs; 2018 void *p; 2019 2020 #ifdef DEBUG 2021 gemu_log("syscall %d", num); 2022 #endif 2023 switch(num) { 2024 case TARGET_NR_exit: 2025 #ifdef HAVE_GPROF 2026 _mcleanup(); 2027 #endif 2028 gdb_exit(cpu_env, arg1); 2029 /* XXX: should free thread stack and CPU env */ 2030 _exit(arg1); 2031 ret = 0; /* avoid warning */ 2032 break; 2033 case TARGET_NR_read: 2034 page_unprotect_range(arg2, arg3); 2035 p = lock_user(arg2, arg3, 0); 2036 ret = get_errno(read(arg1, p, arg3)); 2037 unlock_user(p, arg2, ret); 2038 break; 2039 case TARGET_NR_write: 2040 p = lock_user(arg2, arg3, 1); 2041 ret = get_errno(write(arg1, p, arg3)); 2042 unlock_user(p, arg2, 0); 2043 break; 2044 case TARGET_NR_open: 2045 p = lock_user_string(arg1); 2046 ret = get_errno(open(path(p), 2047 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2048 arg3)); 2049 unlock_user(p, arg1, 0); 2050 break; 2051 case TARGET_NR_close: 2052 ret = get_errno(close(arg1)); 2053 break; 2054 case TARGET_NR_brk: 2055 ret = do_brk(arg1); 2056 break; 2057 case TARGET_NR_fork: 2058 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2059 break; 2060 case TARGET_NR_waitpid: 2061 { 2062 int status; 2063 ret = get_errno(waitpid(arg1, &status, arg3)); 2064 if (!is_error(ret) && arg2) 2065 tput32(arg2, status); 2066 } 2067 break; 2068 case TARGET_NR_creat: 2069 p = lock_user_string(arg1); 2070 ret = get_errno(creat(p, arg2)); 2071 unlock_user(p, arg1, 0); 2072 break; 2073 case TARGET_NR_link: 2074 { 2075 void * p2; 2076 p = lock_user_string(arg1); 2077 p2 = lock_user_string(arg2); 2078 ret = get_errno(link(p, p2)); 2079 unlock_user(p2, arg2, 0); 2080 unlock_user(p, arg1, 0); 2081 } 2082 break; 2083 case TARGET_NR_unlink: 2084 p = lock_user_string(arg1); 2085 ret = get_errno(unlink(p)); 2086 unlock_user(p, arg1, 0); 2087 break; 2088 case TARGET_NR_execve: 2089 { 2090 char **argp, **envp; 2091 int argc, envc; 2092 target_ulong gp; 2093 target_ulong guest_argp; 2094 target_ulong guest_envp; 2095 target_ulong addr; 2096 char **q; 2097 2098 argc = 0; 2099 guest_argp = arg2; 2100 for (gp = guest_argp; tgetl(gp); gp++) 2101 argc++; 2102 envc = 0; 2103 guest_envp = arg3; 2104 for (gp = guest_envp; tgetl(gp); gp++) 2105 envc++; 2106 2107 argp = alloca((argc + 1) * sizeof(void *)); 2108 envp = alloca((envc + 1) * sizeof(void *)); 2109 2110 for (gp = guest_argp, q = argp; ; 2111 gp += sizeof(target_ulong), q++) { 2112 addr = tgetl(gp); 2113 if (!addr) 2114 break; 2115 *q = lock_user_string(addr); 2116 } 2117 *q = NULL; 2118 2119 for (gp = guest_envp, q = envp; ; 2120 gp += sizeof(target_ulong), q++) { 2121 addr = tgetl(gp); 2122 if (!addr) 2123 break; 2124 *q = lock_user_string(addr); 2125 } 2126 *q = NULL; 2127 2128 p = lock_user_string(arg1); 2129 ret = get_errno(execve(p, argp, envp)); 2130 unlock_user(p, arg1, 0); 2131 2132 for (gp = guest_argp, q = argp; *q; 2133 gp += sizeof(target_ulong), q++) { 2134 addr = tgetl(gp); 2135 unlock_user(*q, addr, 0); 2136 } 2137 for (gp = guest_envp, q = envp; *q; 2138 gp += sizeof(target_ulong), q++) { 2139 addr = tgetl(gp); 2140 unlock_user(*q, addr, 0); 2141 } 2142 } 2143 break; 2144 case TARGET_NR_chdir: 2145 p = lock_user_string(arg1); 2146 ret = get_errno(chdir(p)); 2147 unlock_user(p, arg1, 0); 2148 break; 2149 #ifdef TARGET_NR_time 2150 case TARGET_NR_time: 2151 { 2152 time_t host_time; 2153 ret = get_errno(time(&host_time)); 2154 if (!is_error(ret) && arg1) 2155 tputl(arg1, host_time); 2156 } 2157 break; 2158 #endif 2159 case TARGET_NR_mknod: 2160 p = lock_user_string(arg1); 2161 ret = get_errno(mknod(p, arg2, arg3)); 2162 unlock_user(p, arg1, 0); 2163 break; 2164 case TARGET_NR_chmod: 2165 p = lock_user_string(arg1); 2166 ret = get_errno(chmod(p, arg2)); 2167 unlock_user(p, arg1, 0); 2168 break; 2169 #ifdef TARGET_NR_break 2170 case TARGET_NR_break: 2171 goto unimplemented; 2172 #endif 2173 #ifdef TARGET_NR_oldstat 2174 case TARGET_NR_oldstat: 2175 goto unimplemented; 2176 #endif 2177 case TARGET_NR_lseek: 2178 ret = get_errno(lseek(arg1, arg2, arg3)); 2179 break; 2180 case TARGET_NR_getpid: 2181 ret = get_errno(getpid()); 2182 break; 2183 case TARGET_NR_mount: 2184 { 2185 /* need to look at the data field */ 2186 void *p2, *p3; 2187 p = lock_user_string(arg1); 2188 p2 = lock_user_string(arg2); 2189 p3 = lock_user_string(arg3); 2190 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2191 unlock_user(p, arg1, 0); 2192 unlock_user(p2, arg2, 0); 2193 unlock_user(p3, arg3, 0); 2194 break; 2195 } 2196 case TARGET_NR_umount: 2197 p = lock_user_string(arg1); 2198 ret = get_errno(umount(p)); 2199 unlock_user(p, arg1, 0); 2200 break; 2201 case TARGET_NR_stime: 2202 { 2203 time_t host_time; 2204 host_time = tgetl(arg1); 2205 ret = get_errno(stime(&host_time)); 2206 } 2207 break; 2208 case TARGET_NR_ptrace: 2209 goto unimplemented; 2210 case TARGET_NR_alarm: 2211 ret = alarm(arg1); 2212 break; 2213 #ifdef TARGET_NR_oldfstat 2214 case TARGET_NR_oldfstat: 2215 goto unimplemented; 2216 #endif 2217 case TARGET_NR_pause: 2218 ret = get_errno(pause()); 2219 break; 2220 case TARGET_NR_utime: 2221 { 2222 struct utimbuf tbuf, *host_tbuf; 2223 struct target_utimbuf *target_tbuf; 2224 if (arg2) { 2225 lock_user_struct(target_tbuf, arg2, 1); 2226 tbuf.actime = tswapl(target_tbuf->actime); 2227 tbuf.modtime = tswapl(target_tbuf->modtime); 2228 unlock_user_struct(target_tbuf, arg2, 0); 2229 host_tbuf = &tbuf; 2230 } else { 2231 host_tbuf = NULL; 2232 } 2233 p = lock_user_string(arg1); 2234 ret = get_errno(utime(p, host_tbuf)); 2235 unlock_user(p, arg1, 0); 2236 } 2237 break; 2238 case TARGET_NR_utimes: 2239 { 2240 struct timeval *tvp, tv[2]; 2241 if (arg2) { 2242 target_to_host_timeval(&tv[0], arg2); 2243 target_to_host_timeval(&tv[1], 2244 arg2 + sizeof (struct target_timeval)); 2245 tvp = tv; 2246 } else { 2247 tvp = NULL; 2248 } 2249 p = lock_user_string(arg1); 2250 ret = get_errno(utimes(p, tvp)); 2251 unlock_user(p, arg1, 0); 2252 } 2253 break; 2254 #ifdef TARGET_NR_stty 2255 case TARGET_NR_stty: 2256 goto unimplemented; 2257 #endif 2258 #ifdef TARGET_NR_gtty 2259 case TARGET_NR_gtty: 2260 goto unimplemented; 2261 #endif 2262 case TARGET_NR_access: 2263 p = lock_user_string(arg1); 2264 ret = get_errno(access(p, arg2)); 2265 unlock_user(p, arg1, 0); 2266 break; 2267 case TARGET_NR_nice: 2268 ret = get_errno(nice(arg1)); 2269 break; 2270 #ifdef TARGET_NR_ftime 2271 case TARGET_NR_ftime: 2272 goto unimplemented; 2273 #endif 2274 case TARGET_NR_sync: 2275 sync(); 2276 ret = 0; 2277 break; 2278 case TARGET_NR_kill: 2279 ret = get_errno(kill(arg1, arg2)); 2280 break; 2281 case TARGET_NR_rename: 2282 { 2283 void *p2; 2284 p = lock_user_string(arg1); 2285 p2 = lock_user_string(arg2); 2286 ret = get_errno(rename(p, p2)); 2287 unlock_user(p2, arg2, 0); 2288 unlock_user(p, arg1, 0); 2289 } 2290 break; 2291 case TARGET_NR_mkdir: 2292 p = lock_user_string(arg1); 2293 ret = get_errno(mkdir(p, arg2)); 2294 unlock_user(p, arg1, 0); 2295 break; 2296 case TARGET_NR_rmdir: 2297 p = lock_user_string(arg1); 2298 ret = get_errno(rmdir(p)); 2299 unlock_user(p, arg1, 0); 2300 break; 2301 case TARGET_NR_dup: 2302 ret = get_errno(dup(arg1)); 2303 break; 2304 case TARGET_NR_pipe: 2305 { 2306 int host_pipe[2]; 2307 ret = get_errno(pipe(host_pipe)); 2308 if (!is_error(ret)) { 2309 tput32(arg1, host_pipe[0]); 2310 tput32(arg1 + 4, host_pipe[1]); 2311 } 2312 } 2313 break; 2314 case TARGET_NR_times: 2315 { 2316 struct target_tms *tmsp; 2317 struct tms tms; 2318 ret = get_errno(times(&tms)); 2319 if (arg1) { 2320 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2321 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2322 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2323 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2324 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2325 } 2326 if (!is_error(ret)) 2327 ret = host_to_target_clock_t(ret); 2328 } 2329 break; 2330 #ifdef TARGET_NR_prof 2331 case TARGET_NR_prof: 2332 goto unimplemented; 2333 #endif 2334 case TARGET_NR_signal: 2335 goto unimplemented; 2336 2337 case TARGET_NR_acct: 2338 p = lock_user_string(arg1); 2339 ret = get_errno(acct(path(p))); 2340 unlock_user(p, arg1, 0); 2341 break; 2342 case TARGET_NR_umount2: 2343 p = lock_user_string(arg1); 2344 ret = get_errno(umount2(p, arg2)); 2345 unlock_user(p, arg1, 0); 2346 break; 2347 #ifdef TARGET_NR_lock 2348 case TARGET_NR_lock: 2349 goto unimplemented; 2350 #endif 2351 case TARGET_NR_ioctl: 2352 ret = do_ioctl(arg1, arg2, arg3); 2353 break; 2354 case TARGET_NR_fcntl: 2355 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2356 break; 2357 #ifdef TARGET_NR_mpx 2358 case TARGET_NR_mpx: 2359 goto unimplemented; 2360 #endif 2361 case TARGET_NR_setpgid: 2362 ret = get_errno(setpgid(arg1, arg2)); 2363 break; 2364 #ifdef TARGET_NR_ulimit 2365 case TARGET_NR_ulimit: 2366 goto unimplemented; 2367 #endif 2368 #ifdef TARGET_NR_oldolduname 2369 case TARGET_NR_oldolduname: 2370 goto unimplemented; 2371 #endif 2372 case TARGET_NR_umask: 2373 ret = get_errno(umask(arg1)); 2374 break; 2375 case TARGET_NR_chroot: 2376 p = lock_user_string(arg1); 2377 ret = get_errno(chroot(p)); 2378 unlock_user(p, arg1, 0); 2379 break; 2380 case TARGET_NR_ustat: 2381 goto unimplemented; 2382 case TARGET_NR_dup2: 2383 ret = get_errno(dup2(arg1, arg2)); 2384 break; 2385 case TARGET_NR_getppid: 2386 ret = get_errno(getppid()); 2387 break; 2388 case TARGET_NR_getpgrp: 2389 ret = get_errno(getpgrp()); 2390 break; 2391 case TARGET_NR_setsid: 2392 ret = get_errno(setsid()); 2393 break; 2394 case TARGET_NR_sigaction: 2395 { 2396 #if !defined(TARGET_MIPS) 2397 struct target_old_sigaction *old_act; 2398 struct target_sigaction act, oact, *pact; 2399 if (arg2) { 2400 lock_user_struct(old_act, arg2, 1); 2401 act._sa_handler = old_act->_sa_handler; 2402 target_siginitset(&act.sa_mask, old_act->sa_mask); 2403 act.sa_flags = old_act->sa_flags; 2404 act.sa_restorer = old_act->sa_restorer; 2405 unlock_user_struct(old_act, arg2, 0); 2406 pact = &act; 2407 } else { 2408 pact = NULL; 2409 } 2410 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2411 if (!is_error(ret) && arg3) { 2412 lock_user_struct(old_act, arg3, 0); 2413 old_act->_sa_handler = oact._sa_handler; 2414 old_act->sa_mask = oact.sa_mask.sig[0]; 2415 old_act->sa_flags = oact.sa_flags; 2416 old_act->sa_restorer = oact.sa_restorer; 2417 unlock_user_struct(old_act, arg3, 1); 2418 } 2419 #else 2420 struct target_sigaction act, oact, *pact, *old_act; 2421 2422 if (arg2) { 2423 lock_user_struct(old_act, arg2, 1); 2424 act._sa_handler = old_act->_sa_handler; 2425 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2426 act.sa_flags = old_act->sa_flags; 2427 unlock_user_struct(old_act, arg2, 0); 2428 pact = &act; 2429 } else { 2430 pact = NULL; 2431 } 2432 2433 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2434 2435 if (!is_error(ret) && arg3) { 2436 lock_user_struct(old_act, arg3, 0); 2437 old_act->_sa_handler = oact._sa_handler; 2438 old_act->sa_flags = oact.sa_flags; 2439 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 2440 old_act->sa_mask.sig[1] = 0; 2441 old_act->sa_mask.sig[2] = 0; 2442 old_act->sa_mask.sig[3] = 0; 2443 unlock_user_struct(old_act, arg3, 1); 2444 } 2445 #endif 2446 } 2447 break; 2448 case TARGET_NR_rt_sigaction: 2449 { 2450 struct target_sigaction *act; 2451 struct target_sigaction *oact; 2452 2453 if (arg2) 2454 lock_user_struct(act, arg2, 1); 2455 else 2456 act = NULL; 2457 if (arg3) 2458 lock_user_struct(oact, arg3, 0); 2459 else 2460 oact = NULL; 2461 ret = get_errno(do_sigaction(arg1, act, oact)); 2462 if (arg2) 2463 unlock_user_struct(act, arg2, 0); 2464 if (arg3) 2465 unlock_user_struct(oact, arg3, 1); 2466 } 2467 break; 2468 case TARGET_NR_sgetmask: 2469 { 2470 sigset_t cur_set; 2471 target_ulong target_set; 2472 sigprocmask(0, NULL, &cur_set); 2473 host_to_target_old_sigset(&target_set, &cur_set); 2474 ret = target_set; 2475 } 2476 break; 2477 case TARGET_NR_ssetmask: 2478 { 2479 sigset_t set, oset, cur_set; 2480 target_ulong target_set = arg1; 2481 sigprocmask(0, NULL, &cur_set); 2482 target_to_host_old_sigset(&set, &target_set); 2483 sigorset(&set, &set, &cur_set); 2484 sigprocmask(SIG_SETMASK, &set, &oset); 2485 host_to_target_old_sigset(&target_set, &oset); 2486 ret = target_set; 2487 } 2488 break; 2489 case TARGET_NR_sigprocmask: 2490 { 2491 int how = arg1; 2492 sigset_t set, oldset, *set_ptr; 2493 2494 if (arg2) { 2495 switch(how) { 2496 case TARGET_SIG_BLOCK: 2497 how = SIG_BLOCK; 2498 break; 2499 case TARGET_SIG_UNBLOCK: 2500 how = SIG_UNBLOCK; 2501 break; 2502 case TARGET_SIG_SETMASK: 2503 how = SIG_SETMASK; 2504 break; 2505 default: 2506 ret = -EINVAL; 2507 goto fail; 2508 } 2509 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2510 target_to_host_old_sigset(&set, p); 2511 unlock_user(p, arg2, 0); 2512 set_ptr = &set; 2513 } else { 2514 how = 0; 2515 set_ptr = NULL; 2516 } 2517 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 2518 if (!is_error(ret) && arg3) { 2519 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2520 host_to_target_old_sigset(p, &oldset); 2521 unlock_user(p, arg3, sizeof(target_sigset_t)); 2522 } 2523 } 2524 break; 2525 case TARGET_NR_rt_sigprocmask: 2526 { 2527 int how = arg1; 2528 sigset_t set, oldset, *set_ptr; 2529 2530 if (arg2) { 2531 switch(how) { 2532 case TARGET_SIG_BLOCK: 2533 how = SIG_BLOCK; 2534 break; 2535 case TARGET_SIG_UNBLOCK: 2536 how = SIG_UNBLOCK; 2537 break; 2538 case TARGET_SIG_SETMASK: 2539 how = SIG_SETMASK; 2540 break; 2541 default: 2542 ret = -EINVAL; 2543 goto fail; 2544 } 2545 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2546 target_to_host_sigset(&set, p); 2547 unlock_user(p, arg2, 0); 2548 set_ptr = &set; 2549 } else { 2550 how = 0; 2551 set_ptr = NULL; 2552 } 2553 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 2554 if (!is_error(ret) && arg3) { 2555 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2556 host_to_target_sigset(p, &oldset); 2557 unlock_user(p, arg3, sizeof(target_sigset_t)); 2558 } 2559 } 2560 break; 2561 case TARGET_NR_sigpending: 2562 { 2563 sigset_t set; 2564 ret = get_errno(sigpending(&set)); 2565 if (!is_error(ret)) { 2566 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2567 host_to_target_old_sigset(p, &set); 2568 unlock_user(p, arg1, sizeof(target_sigset_t)); 2569 } 2570 } 2571 break; 2572 case TARGET_NR_rt_sigpending: 2573 { 2574 sigset_t set; 2575 ret = get_errno(sigpending(&set)); 2576 if (!is_error(ret)) { 2577 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2578 host_to_target_sigset(p, &set); 2579 unlock_user(p, arg1, sizeof(target_sigset_t)); 2580 } 2581 } 2582 break; 2583 case TARGET_NR_sigsuspend: 2584 { 2585 sigset_t set; 2586 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2587 target_to_host_old_sigset(&set, p); 2588 unlock_user(p, arg1, 0); 2589 ret = get_errno(sigsuspend(&set)); 2590 } 2591 break; 2592 case TARGET_NR_rt_sigsuspend: 2593 { 2594 sigset_t set; 2595 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2596 target_to_host_sigset(&set, p); 2597 unlock_user(p, arg1, 0); 2598 ret = get_errno(sigsuspend(&set)); 2599 } 2600 break; 2601 case TARGET_NR_rt_sigtimedwait: 2602 { 2603 sigset_t set; 2604 struct timespec uts, *puts; 2605 siginfo_t uinfo; 2606 2607 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2608 target_to_host_sigset(&set, p); 2609 unlock_user(p, arg1, 0); 2610 if (arg3) { 2611 puts = &uts; 2612 target_to_host_timespec(puts, arg3); 2613 } else { 2614 puts = NULL; 2615 } 2616 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 2617 if (!is_error(ret) && arg2) { 2618 p = lock_user(arg2, sizeof(target_sigset_t), 0); 2619 host_to_target_siginfo(p, &uinfo); 2620 unlock_user(p, arg2, sizeof(target_sigset_t)); 2621 } 2622 } 2623 break; 2624 case TARGET_NR_rt_sigqueueinfo: 2625 { 2626 siginfo_t uinfo; 2627 p = lock_user(arg3, sizeof(target_sigset_t), 1); 2628 target_to_host_siginfo(&uinfo, p); 2629 unlock_user(p, arg1, 0); 2630 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 2631 } 2632 break; 2633 case TARGET_NR_sigreturn: 2634 /* NOTE: ret is eax, so not transcoding must be done */ 2635 ret = do_sigreturn(cpu_env); 2636 break; 2637 case TARGET_NR_rt_sigreturn: 2638 /* NOTE: ret is eax, so not transcoding must be done */ 2639 ret = do_rt_sigreturn(cpu_env); 2640 break; 2641 case TARGET_NR_sethostname: 2642 p = lock_user_string(arg1); 2643 ret = get_errno(sethostname(p, arg2)); 2644 unlock_user(p, arg1, 0); 2645 break; 2646 case TARGET_NR_setrlimit: 2647 { 2648 /* XXX: convert resource ? */ 2649 int resource = arg1; 2650 struct target_rlimit *target_rlim; 2651 struct rlimit rlim; 2652 lock_user_struct(target_rlim, arg2, 1); 2653 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2654 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2655 unlock_user_struct(target_rlim, arg2, 0); 2656 ret = get_errno(setrlimit(resource, &rlim)); 2657 } 2658 break; 2659 case TARGET_NR_getrlimit: 2660 { 2661 /* XXX: convert resource ? */ 2662 int resource = arg1; 2663 struct target_rlimit *target_rlim; 2664 struct rlimit rlim; 2665 2666 ret = get_errno(getrlimit(resource, &rlim)); 2667 if (!is_error(ret)) { 2668 lock_user_struct(target_rlim, arg2, 0); 2669 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2670 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2671 unlock_user_struct(target_rlim, arg2, 1); 2672 } 2673 } 2674 break; 2675 case TARGET_NR_getrusage: 2676 { 2677 struct rusage rusage; 2678 ret = get_errno(getrusage(arg1, &rusage)); 2679 if (!is_error(ret)) { 2680 host_to_target_rusage(arg2, &rusage); 2681 } 2682 } 2683 break; 2684 case TARGET_NR_gettimeofday: 2685 { 2686 struct timeval tv; 2687 ret = get_errno(gettimeofday(&tv, NULL)); 2688 if (!is_error(ret)) { 2689 host_to_target_timeval(arg1, &tv); 2690 } 2691 } 2692 break; 2693 case TARGET_NR_settimeofday: 2694 { 2695 struct timeval tv; 2696 target_to_host_timeval(&tv, arg1); 2697 ret = get_errno(settimeofday(&tv, NULL)); 2698 } 2699 break; 2700 #ifdef TARGET_NR_select 2701 case TARGET_NR_select: 2702 { 2703 struct target_sel_arg_struct *sel; 2704 target_ulong inp, outp, exp, tvp; 2705 long nsel; 2706 2707 lock_user_struct(sel, arg1, 1); 2708 nsel = tswapl(sel->n); 2709 inp = tswapl(sel->inp); 2710 outp = tswapl(sel->outp); 2711 exp = tswapl(sel->exp); 2712 tvp = tswapl(sel->tvp); 2713 unlock_user_struct(sel, arg1, 0); 2714 ret = do_select(nsel, inp, outp, exp, tvp); 2715 } 2716 break; 2717 #endif 2718 case TARGET_NR_symlink: 2719 { 2720 void *p2; 2721 p = lock_user_string(arg1); 2722 p2 = lock_user_string(arg2); 2723 ret = get_errno(symlink(p, p2)); 2724 unlock_user(p2, arg2, 0); 2725 unlock_user(p, arg1, 0); 2726 } 2727 break; 2728 #ifdef TARGET_NR_oldlstat 2729 case TARGET_NR_oldlstat: 2730 goto unimplemented; 2731 #endif 2732 case TARGET_NR_readlink: 2733 { 2734 void *p2; 2735 p = lock_user_string(arg1); 2736 p2 = lock_user(arg2, arg3, 0); 2737 ret = get_errno(readlink(path(p), p2, arg3)); 2738 unlock_user(p2, arg2, ret); 2739 unlock_user(p, arg1, 0); 2740 } 2741 break; 2742 case TARGET_NR_uselib: 2743 goto unimplemented; 2744 case TARGET_NR_swapon: 2745 p = lock_user_string(arg1); 2746 ret = get_errno(swapon(p, arg2)); 2747 unlock_user(p, arg1, 0); 2748 break; 2749 case TARGET_NR_reboot: 2750 goto unimplemented; 2751 case TARGET_NR_readdir: 2752 goto unimplemented; 2753 case TARGET_NR_mmap: 2754 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 2755 { 2756 target_ulong *v; 2757 target_ulong v1, v2, v3, v4, v5, v6; 2758 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 2759 v1 = tswapl(v[0]); 2760 v2 = tswapl(v[1]); 2761 v3 = tswapl(v[2]); 2762 v4 = tswapl(v[3]); 2763 v5 = tswapl(v[4]); 2764 v6 = tswapl(v[5]); 2765 unlock_user(v, arg1, 0); 2766 ret = get_errno(target_mmap(v1, v2, v3, 2767 target_to_host_bitmask(v4, mmap_flags_tbl), 2768 v5, v6)); 2769 } 2770 #else 2771 ret = get_errno(target_mmap(arg1, arg2, arg3, 2772 target_to_host_bitmask(arg4, mmap_flags_tbl), 2773 arg5, 2774 arg6)); 2775 #endif 2776 break; 2777 #ifdef TARGET_NR_mmap2 2778 case TARGET_NR_mmap2: 2779 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 2780 #define MMAP_SHIFT 12 2781 #else 2782 #define MMAP_SHIFT TARGET_PAGE_BITS 2783 #endif 2784 ret = get_errno(target_mmap(arg1, arg2, arg3, 2785 target_to_host_bitmask(arg4, mmap_flags_tbl), 2786 arg5, 2787 arg6 << MMAP_SHIFT)); 2788 break; 2789 #endif 2790 case TARGET_NR_munmap: 2791 ret = get_errno(target_munmap(arg1, arg2)); 2792 break; 2793 case TARGET_NR_mprotect: 2794 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 2795 break; 2796 case TARGET_NR_mremap: 2797 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 2798 break; 2799 /* ??? msync/mlock/munlock are broken for softmmu. */ 2800 case TARGET_NR_msync: 2801 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 2802 break; 2803 case TARGET_NR_mlock: 2804 ret = get_errno(mlock(g2h(arg1), arg2)); 2805 break; 2806 case TARGET_NR_munlock: 2807 ret = get_errno(munlock(g2h(arg1), arg2)); 2808 break; 2809 case TARGET_NR_mlockall: 2810 ret = get_errno(mlockall(arg1)); 2811 break; 2812 case TARGET_NR_munlockall: 2813 ret = get_errno(munlockall()); 2814 break; 2815 case TARGET_NR_truncate: 2816 p = lock_user_string(arg1); 2817 ret = get_errno(truncate(p, arg2)); 2818 unlock_user(p, arg1, 0); 2819 break; 2820 case TARGET_NR_ftruncate: 2821 ret = get_errno(ftruncate(arg1, arg2)); 2822 break; 2823 case TARGET_NR_fchmod: 2824 ret = get_errno(fchmod(arg1, arg2)); 2825 break; 2826 case TARGET_NR_getpriority: 2827 ret = get_errno(getpriority(arg1, arg2)); 2828 break; 2829 case TARGET_NR_setpriority: 2830 ret = get_errno(setpriority(arg1, arg2, arg3)); 2831 break; 2832 #ifdef TARGET_NR_profil 2833 case TARGET_NR_profil: 2834 goto unimplemented; 2835 #endif 2836 case TARGET_NR_statfs: 2837 p = lock_user_string(arg1); 2838 ret = get_errno(statfs(path(p), &stfs)); 2839 unlock_user(p, arg1, 0); 2840 convert_statfs: 2841 if (!is_error(ret)) { 2842 struct target_statfs *target_stfs; 2843 2844 lock_user_struct(target_stfs, arg2, 0); 2845 /* ??? put_user is probably wrong. */ 2846 put_user(stfs.f_type, &target_stfs->f_type); 2847 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2848 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2849 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2850 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2851 put_user(stfs.f_files, &target_stfs->f_files); 2852 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2853 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2854 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2855 unlock_user_struct(target_stfs, arg2, 1); 2856 } 2857 break; 2858 case TARGET_NR_fstatfs: 2859 ret = get_errno(fstatfs(arg1, &stfs)); 2860 goto convert_statfs; 2861 #ifdef TARGET_NR_statfs64 2862 case TARGET_NR_statfs64: 2863 p = lock_user_string(arg1); 2864 ret = get_errno(statfs(path(p), &stfs)); 2865 unlock_user(p, arg1, 0); 2866 convert_statfs64: 2867 if (!is_error(ret)) { 2868 struct target_statfs64 *target_stfs; 2869 2870 lock_user_struct(target_stfs, arg3, 0); 2871 /* ??? put_user is probably wrong. */ 2872 put_user(stfs.f_type, &target_stfs->f_type); 2873 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2874 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2875 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2876 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2877 put_user(stfs.f_files, &target_stfs->f_files); 2878 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2879 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2880 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2881 unlock_user_struct(target_stfs, arg3, 0); 2882 } 2883 break; 2884 case TARGET_NR_fstatfs64: 2885 ret = get_errno(fstatfs(arg1, &stfs)); 2886 goto convert_statfs64; 2887 #endif 2888 #ifdef TARGET_NR_ioperm 2889 case TARGET_NR_ioperm: 2890 goto unimplemented; 2891 #endif 2892 case TARGET_NR_socketcall: 2893 ret = do_socketcall(arg1, arg2); 2894 break; 2895 2896 #ifdef TARGET_NR_accept 2897 case TARGET_NR_accept: 2898 ret = do_accept(arg1, arg2, arg3); 2899 break; 2900 #endif 2901 #ifdef TARGET_NR_bind 2902 case TARGET_NR_bind: 2903 ret = do_bind(arg1, arg2, arg3); 2904 break; 2905 #endif 2906 #ifdef TARGET_NR_connect 2907 case TARGET_NR_connect: 2908 ret = do_connect(arg1, arg2, arg3); 2909 break; 2910 #endif 2911 #ifdef TARGET_NR_getpeername 2912 case TARGET_NR_getpeername: 2913 ret = do_getpeername(arg1, arg2, arg3); 2914 break; 2915 #endif 2916 #ifdef TARGET_NR_getsockname 2917 case TARGET_NR_getsockname: 2918 ret = do_getsockname(arg1, arg2, arg3); 2919 break; 2920 #endif 2921 #ifdef TARGET_NR_getsockopt 2922 case TARGET_NR_getsockopt: 2923 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 2924 break; 2925 #endif 2926 #ifdef TARGET_NR_listen 2927 case TARGET_NR_listen: 2928 ret = get_errno(listen(arg1, arg2)); 2929 break; 2930 #endif 2931 #ifdef TARGET_NR_recv 2932 case TARGET_NR_recv: 2933 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 2934 break; 2935 #endif 2936 #ifdef TARGET_NR_recvfrom 2937 case TARGET_NR_recvfrom: 2938 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 2939 break; 2940 #endif 2941 #ifdef TARGET_NR_recvmsg 2942 case TARGET_NR_recvmsg: 2943 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 2944 break; 2945 #endif 2946 #ifdef TARGET_NR_send 2947 case TARGET_NR_send: 2948 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 2949 break; 2950 #endif 2951 #ifdef TARGET_NR_sendmsg 2952 case TARGET_NR_sendmsg: 2953 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 2954 break; 2955 #endif 2956 #ifdef TARGET_NR_sendto 2957 case TARGET_NR_sendto: 2958 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 2959 break; 2960 #endif 2961 #ifdef TARGET_NR_shutdown 2962 case TARGET_NR_shutdown: 2963 ret = get_errno(shutdown(arg1, arg2)); 2964 break; 2965 #endif 2966 #ifdef TARGET_NR_socket 2967 case TARGET_NR_socket: 2968 ret = do_socket(arg1, arg2, arg3); 2969 break; 2970 #endif 2971 #ifdef TARGET_NR_socketpair 2972 case TARGET_NR_socketpair: 2973 ret = do_socketpair(arg1, arg2, arg3, arg4); 2974 break; 2975 #endif 2976 #ifdef TARGET_NR_setsockopt 2977 case TARGET_NR_setsockopt: 2978 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 2979 break; 2980 #endif 2981 2982 case TARGET_NR_syslog: 2983 p = lock_user_string(arg2); 2984 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 2985 unlock_user(p, arg2, 0); 2986 break; 2987 2988 case TARGET_NR_setitimer: 2989 { 2990 struct itimerval value, ovalue, *pvalue; 2991 2992 if (arg2) { 2993 pvalue = &value; 2994 target_to_host_timeval(&pvalue->it_interval, 2995 arg2); 2996 target_to_host_timeval(&pvalue->it_value, 2997 arg2 + sizeof(struct target_timeval)); 2998 } else { 2999 pvalue = NULL; 3000 } 3001 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3002 if (!is_error(ret) && arg3) { 3003 host_to_target_timeval(arg3, 3004 &ovalue.it_interval); 3005 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3006 &ovalue.it_value); 3007 } 3008 } 3009 break; 3010 case TARGET_NR_getitimer: 3011 { 3012 struct itimerval value; 3013 3014 ret = get_errno(getitimer(arg1, &value)); 3015 if (!is_error(ret) && arg2) { 3016 host_to_target_timeval(arg2, 3017 &value.it_interval); 3018 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3019 &value.it_value); 3020 } 3021 } 3022 break; 3023 case TARGET_NR_stat: 3024 p = lock_user_string(arg1); 3025 ret = get_errno(stat(path(p), &st)); 3026 unlock_user(p, arg1, 0); 3027 goto do_stat; 3028 case TARGET_NR_lstat: 3029 p = lock_user_string(arg1); 3030 ret = get_errno(lstat(path(p), &st)); 3031 unlock_user(p, arg1, 0); 3032 goto do_stat; 3033 case TARGET_NR_fstat: 3034 { 3035 ret = get_errno(fstat(arg1, &st)); 3036 do_stat: 3037 if (!is_error(ret)) { 3038 struct target_stat *target_st; 3039 3040 lock_user_struct(target_st, arg2, 0); 3041 target_st->st_dev = tswap16(st.st_dev); 3042 target_st->st_ino = tswapl(st.st_ino); 3043 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3044 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3045 target_st->st_uid = tswap32(st.st_uid); 3046 target_st->st_gid = tswap32(st.st_gid); 3047 #else 3048 target_st->st_mode = tswap16(st.st_mode); 3049 target_st->st_uid = tswap16(st.st_uid); 3050 target_st->st_gid = tswap16(st.st_gid); 3051 #endif 3052 target_st->st_nlink = tswap16(st.st_nlink); 3053 target_st->st_rdev = tswap16(st.st_rdev); 3054 target_st->st_size = tswapl(st.st_size); 3055 target_st->st_blksize = tswapl(st.st_blksize); 3056 target_st->st_blocks = tswapl(st.st_blocks); 3057 target_st->target_st_atime = tswapl(st.st_atime); 3058 target_st->target_st_mtime = tswapl(st.st_mtime); 3059 target_st->target_st_ctime = tswapl(st.st_ctime); 3060 unlock_user_struct(target_st, arg2, 1); 3061 } 3062 } 3063 break; 3064 #ifdef TARGET_NR_olduname 3065 case TARGET_NR_olduname: 3066 goto unimplemented; 3067 #endif 3068 #ifdef TARGET_NR_iopl 3069 case TARGET_NR_iopl: 3070 goto unimplemented; 3071 #endif 3072 case TARGET_NR_vhangup: 3073 ret = get_errno(vhangup()); 3074 break; 3075 #ifdef TARGET_NR_idle 3076 case TARGET_NR_idle: 3077 goto unimplemented; 3078 #endif 3079 #ifdef TARGET_NR_syscall 3080 case TARGET_NR_syscall: 3081 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3082 break; 3083 #endif 3084 case TARGET_NR_wait4: 3085 { 3086 int status; 3087 target_long status_ptr = arg2; 3088 struct rusage rusage, *rusage_ptr; 3089 target_ulong target_rusage = arg4; 3090 if (target_rusage) 3091 rusage_ptr = &rusage; 3092 else 3093 rusage_ptr = NULL; 3094 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3095 if (!is_error(ret)) { 3096 if (status_ptr) 3097 tputl(status_ptr, status); 3098 if (target_rusage) { 3099 host_to_target_rusage(target_rusage, &rusage); 3100 } 3101 } 3102 } 3103 break; 3104 case TARGET_NR_swapoff: 3105 p = lock_user_string(arg1); 3106 ret = get_errno(swapoff(p)); 3107 unlock_user(p, arg1, 0); 3108 break; 3109 case TARGET_NR_sysinfo: 3110 { 3111 struct target_sysinfo *target_value; 3112 struct sysinfo value; 3113 ret = get_errno(sysinfo(&value)); 3114 if (!is_error(ret) && arg1) 3115 { 3116 /* ??? __put_user is probably wrong. */ 3117 lock_user_struct(target_value, arg1, 0); 3118 __put_user(value.uptime, &target_value->uptime); 3119 __put_user(value.loads[0], &target_value->loads[0]); 3120 __put_user(value.loads[1], &target_value->loads[1]); 3121 __put_user(value.loads[2], &target_value->loads[2]); 3122 __put_user(value.totalram, &target_value->totalram); 3123 __put_user(value.freeram, &target_value->freeram); 3124 __put_user(value.sharedram, &target_value->sharedram); 3125 __put_user(value.bufferram, &target_value->bufferram); 3126 __put_user(value.totalswap, &target_value->totalswap); 3127 __put_user(value.freeswap, &target_value->freeswap); 3128 __put_user(value.procs, &target_value->procs); 3129 __put_user(value.totalhigh, &target_value->totalhigh); 3130 __put_user(value.freehigh, &target_value->freehigh); 3131 __put_user(value.mem_unit, &target_value->mem_unit); 3132 unlock_user_struct(target_value, arg1, 1); 3133 } 3134 } 3135 break; 3136 case TARGET_NR_ipc: 3137 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3138 break; 3139 case TARGET_NR_fsync: 3140 ret = get_errno(fsync(arg1)); 3141 break; 3142 case TARGET_NR_clone: 3143 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3144 break; 3145 #ifdef __NR_exit_group 3146 /* new thread calls */ 3147 case TARGET_NR_exit_group: 3148 gdb_exit(cpu_env, arg1); 3149 ret = get_errno(exit_group(arg1)); 3150 break; 3151 #endif 3152 case TARGET_NR_setdomainname: 3153 p = lock_user_string(arg1); 3154 ret = get_errno(setdomainname(p, arg2)); 3155 unlock_user(p, arg1, 0); 3156 break; 3157 case TARGET_NR_uname: 3158 /* no need to transcode because we use the linux syscall */ 3159 { 3160 struct new_utsname * buf; 3161 3162 lock_user_struct(buf, arg1, 0); 3163 ret = get_errno(sys_uname(buf)); 3164 if (!is_error(ret)) { 3165 /* Overrite the native machine name with whatever is being 3166 emulated. */ 3167 strcpy (buf->machine, UNAME_MACHINE); 3168 /* Allow the user to override the reported release. */ 3169 if (qemu_uname_release && *qemu_uname_release) 3170 strcpy (buf->release, qemu_uname_release); 3171 } 3172 unlock_user_struct(buf, arg1, 1); 3173 } 3174 break; 3175 #ifdef TARGET_I386 3176 case TARGET_NR_modify_ldt: 3177 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3178 break; 3179 case TARGET_NR_vm86old: 3180 goto unimplemented; 3181 case TARGET_NR_vm86: 3182 ret = do_vm86(cpu_env, arg1, arg2); 3183 break; 3184 #endif 3185 case TARGET_NR_adjtimex: 3186 goto unimplemented; 3187 case TARGET_NR_create_module: 3188 case TARGET_NR_init_module: 3189 case TARGET_NR_delete_module: 3190 case TARGET_NR_get_kernel_syms: 3191 goto unimplemented; 3192 case TARGET_NR_quotactl: 3193 goto unimplemented; 3194 case TARGET_NR_getpgid: 3195 ret = get_errno(getpgid(arg1)); 3196 break; 3197 case TARGET_NR_fchdir: 3198 ret = get_errno(fchdir(arg1)); 3199 break; 3200 case TARGET_NR_bdflush: 3201 goto unimplemented; 3202 case TARGET_NR_sysfs: 3203 goto unimplemented; 3204 case TARGET_NR_personality: 3205 ret = get_errno(personality(arg1)); 3206 break; 3207 case TARGET_NR_afs_syscall: 3208 goto unimplemented; 3209 case TARGET_NR__llseek: 3210 { 3211 #if defined (__x86_64__) 3212 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3213 tput64(arg4, ret); 3214 #else 3215 int64_t res; 3216 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3217 tput64(arg4, res); 3218 #endif 3219 } 3220 break; 3221 case TARGET_NR_getdents: 3222 #if TARGET_LONG_SIZE != 4 3223 goto unimplemented; 3224 #warning not supported 3225 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3226 { 3227 struct target_dirent *target_dirp; 3228 struct dirent *dirp; 3229 long count = arg3; 3230 3231 dirp = malloc(count); 3232 if (!dirp) 3233 return -ENOMEM; 3234 3235 ret = get_errno(sys_getdents(arg1, dirp, count)); 3236 if (!is_error(ret)) { 3237 struct dirent *de; 3238 struct target_dirent *tde; 3239 int len = ret; 3240 int reclen, treclen; 3241 int count1, tnamelen; 3242 3243 count1 = 0; 3244 de = dirp; 3245 target_dirp = lock_user(arg2, count, 0); 3246 tde = target_dirp; 3247 while (len > 0) { 3248 reclen = de->d_reclen; 3249 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3250 tde->d_reclen = tswap16(treclen); 3251 tde->d_ino = tswapl(de->d_ino); 3252 tde->d_off = tswapl(de->d_off); 3253 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3254 if (tnamelen > 256) 3255 tnamelen = 256; 3256 /* XXX: may not be correct */ 3257 strncpy(tde->d_name, de->d_name, tnamelen); 3258 de = (struct dirent *)((char *)de + reclen); 3259 len -= reclen; 3260 tde = (struct dirent *)((char *)tde + treclen); 3261 count1 += treclen; 3262 } 3263 ret = count1; 3264 } 3265 unlock_user(target_dirp, arg2, ret); 3266 free(dirp); 3267 } 3268 #else 3269 { 3270 struct dirent *dirp; 3271 long count = arg3; 3272 3273 dirp = lock_user(arg2, count, 0); 3274 ret = get_errno(sys_getdents(arg1, dirp, count)); 3275 if (!is_error(ret)) { 3276 struct dirent *de; 3277 int len = ret; 3278 int reclen; 3279 de = dirp; 3280 while (len > 0) { 3281 reclen = de->d_reclen; 3282 if (reclen > len) 3283 break; 3284 de->d_reclen = tswap16(reclen); 3285 tswapls(&de->d_ino); 3286 tswapls(&de->d_off); 3287 de = (struct dirent *)((char *)de + reclen); 3288 len -= reclen; 3289 } 3290 } 3291 unlock_user(dirp, arg2, ret); 3292 } 3293 #endif 3294 break; 3295 #ifdef TARGET_NR_getdents64 3296 case TARGET_NR_getdents64: 3297 { 3298 struct dirent64 *dirp; 3299 long count = arg3; 3300 dirp = lock_user(arg2, count, 0); 3301 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3302 if (!is_error(ret)) { 3303 struct dirent64 *de; 3304 int len = ret; 3305 int reclen; 3306 de = dirp; 3307 while (len > 0) { 3308 reclen = de->d_reclen; 3309 if (reclen > len) 3310 break; 3311 de->d_reclen = tswap16(reclen); 3312 tswap64s(&de->d_ino); 3313 tswap64s(&de->d_off); 3314 de = (struct dirent64 *)((char *)de + reclen); 3315 len -= reclen; 3316 } 3317 } 3318 unlock_user(dirp, arg2, ret); 3319 } 3320 break; 3321 #endif /* TARGET_NR_getdents64 */ 3322 case TARGET_NR__newselect: 3323 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3324 break; 3325 case TARGET_NR_poll: 3326 { 3327 struct target_pollfd *target_pfd; 3328 unsigned int nfds = arg2; 3329 int timeout = arg3; 3330 struct pollfd *pfd; 3331 unsigned int i; 3332 3333 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3334 pfd = alloca(sizeof(struct pollfd) * nfds); 3335 for(i = 0; i < nfds; i++) { 3336 pfd[i].fd = tswap32(target_pfd[i].fd); 3337 pfd[i].events = tswap16(target_pfd[i].events); 3338 } 3339 ret = get_errno(poll(pfd, nfds, timeout)); 3340 if (!is_error(ret)) { 3341 for(i = 0; i < nfds; i++) { 3342 target_pfd[i].revents = tswap16(pfd[i].revents); 3343 } 3344 ret += nfds * (sizeof(struct target_pollfd) 3345 - sizeof(struct pollfd)); 3346 } 3347 unlock_user(target_pfd, arg1, ret); 3348 } 3349 break; 3350 case TARGET_NR_flock: 3351 /* NOTE: the flock constant seems to be the same for every 3352 Linux platform */ 3353 ret = get_errno(flock(arg1, arg2)); 3354 break; 3355 case TARGET_NR_readv: 3356 { 3357 int count = arg3; 3358 struct iovec *vec; 3359 3360 vec = alloca(count * sizeof(struct iovec)); 3361 lock_iovec(vec, arg2, count, 0); 3362 ret = get_errno(readv(arg1, vec, count)); 3363 unlock_iovec(vec, arg2, count, 1); 3364 } 3365 break; 3366 case TARGET_NR_writev: 3367 { 3368 int count = arg3; 3369 struct iovec *vec; 3370 3371 vec = alloca(count * sizeof(struct iovec)); 3372 lock_iovec(vec, arg2, count, 1); 3373 ret = get_errno(writev(arg1, vec, count)); 3374 unlock_iovec(vec, arg2, count, 0); 3375 } 3376 break; 3377 case TARGET_NR_getsid: 3378 ret = get_errno(getsid(arg1)); 3379 break; 3380 case TARGET_NR_fdatasync: 3381 ret = get_errno(fdatasync(arg1)); 3382 break; 3383 case TARGET_NR__sysctl: 3384 /* We don't implement this, but ENODIR is always a safe 3385 return value. */ 3386 return -ENOTDIR; 3387 case TARGET_NR_sched_setparam: 3388 { 3389 struct sched_param *target_schp; 3390 struct sched_param schp; 3391 3392 lock_user_struct(target_schp, arg2, 1); 3393 schp.sched_priority = tswap32(target_schp->sched_priority); 3394 unlock_user_struct(target_schp, arg2, 0); 3395 ret = get_errno(sched_setparam(arg1, &schp)); 3396 } 3397 break; 3398 case TARGET_NR_sched_getparam: 3399 { 3400 struct sched_param *target_schp; 3401 struct sched_param schp; 3402 ret = get_errno(sched_getparam(arg1, &schp)); 3403 if (!is_error(ret)) { 3404 lock_user_struct(target_schp, arg2, 0); 3405 target_schp->sched_priority = tswap32(schp.sched_priority); 3406 unlock_user_struct(target_schp, arg2, 1); 3407 } 3408 } 3409 break; 3410 case TARGET_NR_sched_setscheduler: 3411 { 3412 struct sched_param *target_schp; 3413 struct sched_param schp; 3414 lock_user_struct(target_schp, arg3, 1); 3415 schp.sched_priority = tswap32(target_schp->sched_priority); 3416 unlock_user_struct(target_schp, arg3, 0); 3417 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 3418 } 3419 break; 3420 case TARGET_NR_sched_getscheduler: 3421 ret = get_errno(sched_getscheduler(arg1)); 3422 break; 3423 case TARGET_NR_sched_yield: 3424 ret = get_errno(sched_yield()); 3425 break; 3426 case TARGET_NR_sched_get_priority_max: 3427 ret = get_errno(sched_get_priority_max(arg1)); 3428 break; 3429 case TARGET_NR_sched_get_priority_min: 3430 ret = get_errno(sched_get_priority_min(arg1)); 3431 break; 3432 case TARGET_NR_sched_rr_get_interval: 3433 { 3434 struct timespec ts; 3435 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 3436 if (!is_error(ret)) { 3437 host_to_target_timespec(arg2, &ts); 3438 } 3439 } 3440 break; 3441 case TARGET_NR_nanosleep: 3442 { 3443 struct timespec req, rem; 3444 target_to_host_timespec(&req, arg1); 3445 ret = get_errno(nanosleep(&req, &rem)); 3446 if (is_error(ret) && arg2) { 3447 host_to_target_timespec(arg2, &rem); 3448 } 3449 } 3450 break; 3451 case TARGET_NR_query_module: 3452 goto unimplemented; 3453 case TARGET_NR_nfsservctl: 3454 goto unimplemented; 3455 case TARGET_NR_prctl: 3456 switch (arg1) 3457 { 3458 case PR_GET_PDEATHSIG: 3459 { 3460 int deathsig; 3461 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 3462 if (!is_error(ret) && arg2) 3463 tput32(arg2, deathsig); 3464 } 3465 break; 3466 default: 3467 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 3468 break; 3469 } 3470 break; 3471 #ifdef TARGET_NR_pread 3472 case TARGET_NR_pread: 3473 page_unprotect_range(arg2, arg3); 3474 p = lock_user(arg2, arg3, 0); 3475 ret = get_errno(pread(arg1, p, arg3, arg4)); 3476 unlock_user(p, arg2, ret); 3477 break; 3478 case TARGET_NR_pwrite: 3479 p = lock_user(arg2, arg3, 1); 3480 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 3481 unlock_user(p, arg2, 0); 3482 break; 3483 #endif 3484 case TARGET_NR_getcwd: 3485 p = lock_user(arg1, arg2, 0); 3486 ret = get_errno(sys_getcwd1(p, arg2)); 3487 unlock_user(p, arg1, ret); 3488 break; 3489 case TARGET_NR_capget: 3490 goto unimplemented; 3491 case TARGET_NR_capset: 3492 goto unimplemented; 3493 case TARGET_NR_sigaltstack: 3494 goto unimplemented; 3495 case TARGET_NR_sendfile: 3496 goto unimplemented; 3497 #ifdef TARGET_NR_getpmsg 3498 case TARGET_NR_getpmsg: 3499 goto unimplemented; 3500 #endif 3501 #ifdef TARGET_NR_putpmsg 3502 case TARGET_NR_putpmsg: 3503 goto unimplemented; 3504 #endif 3505 #ifdef TARGET_NR_vfork 3506 case TARGET_NR_vfork: 3507 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 3508 break; 3509 #endif 3510 #ifdef TARGET_NR_ugetrlimit 3511 case TARGET_NR_ugetrlimit: 3512 { 3513 struct rlimit rlim; 3514 ret = get_errno(getrlimit(arg1, &rlim)); 3515 if (!is_error(ret)) { 3516 struct target_rlimit *target_rlim; 3517 lock_user_struct(target_rlim, arg2, 0); 3518 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 3519 target_rlim->rlim_max = tswapl(rlim.rlim_max); 3520 unlock_user_struct(target_rlim, arg2, 1); 3521 } 3522 break; 3523 } 3524 #endif 3525 #ifdef TARGET_NR_truncate64 3526 case TARGET_NR_truncate64: 3527 p = lock_user_string(arg1); 3528 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 3529 unlock_user(p, arg1, 0); 3530 break; 3531 #endif 3532 #ifdef TARGET_NR_ftruncate64 3533 case TARGET_NR_ftruncate64: 3534 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 3535 break; 3536 #endif 3537 #ifdef TARGET_NR_stat64 3538 case TARGET_NR_stat64: 3539 p = lock_user_string(arg1); 3540 ret = get_errno(stat(path(p), &st)); 3541 unlock_user(p, arg1, 0); 3542 goto do_stat64; 3543 #endif 3544 #ifdef TARGET_NR_lstat64 3545 case TARGET_NR_lstat64: 3546 p = lock_user_string(arg1); 3547 ret = get_errno(lstat(path(p), &st)); 3548 unlock_user(p, arg1, 0); 3549 goto do_stat64; 3550 #endif 3551 #ifdef TARGET_NR_fstat64 3552 case TARGET_NR_fstat64: 3553 { 3554 ret = get_errno(fstat(arg1, &st)); 3555 do_stat64: 3556 if (!is_error(ret)) { 3557 #ifdef TARGET_ARM 3558 if (((CPUARMState *)cpu_env)->eabi) { 3559 struct target_eabi_stat64 *target_st; 3560 lock_user_struct(target_st, arg2, 1); 3561 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 3562 /* put_user is probably wrong. */ 3563 put_user(st.st_dev, &target_st->st_dev); 3564 put_user(st.st_ino, &target_st->st_ino); 3565 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3566 put_user(st.st_ino, &target_st->__st_ino); 3567 #endif 3568 put_user(st.st_mode, &target_st->st_mode); 3569 put_user(st.st_nlink, &target_st->st_nlink); 3570 put_user(st.st_uid, &target_st->st_uid); 3571 put_user(st.st_gid, &target_st->st_gid); 3572 put_user(st.st_rdev, &target_st->st_rdev); 3573 /* XXX: better use of kernel struct */ 3574 put_user(st.st_size, &target_st->st_size); 3575 put_user(st.st_blksize, &target_st->st_blksize); 3576 put_user(st.st_blocks, &target_st->st_blocks); 3577 put_user(st.st_atime, &target_st->target_st_atime); 3578 put_user(st.st_mtime, &target_st->target_st_mtime); 3579 put_user(st.st_ctime, &target_st->target_st_ctime); 3580 unlock_user_struct(target_st, arg2, 0); 3581 } else 3582 #endif 3583 { 3584 struct target_stat64 *target_st; 3585 lock_user_struct(target_st, arg2, 1); 3586 memset(target_st, 0, sizeof(struct target_stat64)); 3587 /* ??? put_user is probably wrong. */ 3588 put_user(st.st_dev, &target_st->st_dev); 3589 put_user(st.st_ino, &target_st->st_ino); 3590 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3591 put_user(st.st_ino, &target_st->__st_ino); 3592 #endif 3593 put_user(st.st_mode, &target_st->st_mode); 3594 put_user(st.st_nlink, &target_st->st_nlink); 3595 put_user(st.st_uid, &target_st->st_uid); 3596 put_user(st.st_gid, &target_st->st_gid); 3597 put_user(st.st_rdev, &target_st->st_rdev); 3598 /* XXX: better use of kernel struct */ 3599 put_user(st.st_size, &target_st->st_size); 3600 put_user(st.st_blksize, &target_st->st_blksize); 3601 put_user(st.st_blocks, &target_st->st_blocks); 3602 put_user(st.st_atime, &target_st->target_st_atime); 3603 put_user(st.st_mtime, &target_st->target_st_mtime); 3604 put_user(st.st_ctime, &target_st->target_st_ctime); 3605 unlock_user_struct(target_st, arg2, 0); 3606 } 3607 } 3608 } 3609 break; 3610 #endif 3611 #ifdef USE_UID16 3612 case TARGET_NR_lchown: 3613 p = lock_user_string(arg1); 3614 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 3615 unlock_user(p, arg1, 0); 3616 break; 3617 case TARGET_NR_getuid: 3618 ret = get_errno(high2lowuid(getuid())); 3619 break; 3620 case TARGET_NR_getgid: 3621 ret = get_errno(high2lowgid(getgid())); 3622 break; 3623 case TARGET_NR_geteuid: 3624 ret = get_errno(high2lowuid(geteuid())); 3625 break; 3626 case TARGET_NR_getegid: 3627 ret = get_errno(high2lowgid(getegid())); 3628 break; 3629 case TARGET_NR_setreuid: 3630 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 3631 break; 3632 case TARGET_NR_setregid: 3633 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 3634 break; 3635 case TARGET_NR_getgroups: 3636 { 3637 int gidsetsize = arg1; 3638 uint16_t *target_grouplist; 3639 gid_t *grouplist; 3640 int i; 3641 3642 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3643 ret = get_errno(getgroups(gidsetsize, grouplist)); 3644 if (!is_error(ret)) { 3645 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 3646 for(i = 0;i < gidsetsize; i++) 3647 target_grouplist[i] = tswap16(grouplist[i]); 3648 unlock_user(target_grouplist, arg2, gidsetsize * 2); 3649 } 3650 } 3651 break; 3652 case TARGET_NR_setgroups: 3653 { 3654 int gidsetsize = arg1; 3655 uint16_t *target_grouplist; 3656 gid_t *grouplist; 3657 int i; 3658 3659 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3660 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 3661 for(i = 0;i < gidsetsize; i++) 3662 grouplist[i] = tswap16(target_grouplist[i]); 3663 unlock_user(target_grouplist, arg2, 0); 3664 ret = get_errno(setgroups(gidsetsize, grouplist)); 3665 } 3666 break; 3667 case TARGET_NR_fchown: 3668 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 3669 break; 3670 #ifdef TARGET_NR_setresuid 3671 case TARGET_NR_setresuid: 3672 ret = get_errno(setresuid(low2highuid(arg1), 3673 low2highuid(arg2), 3674 low2highuid(arg3))); 3675 break; 3676 #endif 3677 #ifdef TARGET_NR_getresuid 3678 case TARGET_NR_getresuid: 3679 { 3680 uid_t ruid, euid, suid; 3681 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3682 if (!is_error(ret)) { 3683 tput16(arg1, tswap16(high2lowuid(ruid))); 3684 tput16(arg2, tswap16(high2lowuid(euid))); 3685 tput16(arg3, tswap16(high2lowuid(suid))); 3686 } 3687 } 3688 break; 3689 #endif 3690 #ifdef TARGET_NR_getresgid 3691 case TARGET_NR_setresgid: 3692 ret = get_errno(setresgid(low2highgid(arg1), 3693 low2highgid(arg2), 3694 low2highgid(arg3))); 3695 break; 3696 #endif 3697 #ifdef TARGET_NR_getresgid 3698 case TARGET_NR_getresgid: 3699 { 3700 gid_t rgid, egid, sgid; 3701 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3702 if (!is_error(ret)) { 3703 tput16(arg1, tswap16(high2lowgid(rgid))); 3704 tput16(arg2, tswap16(high2lowgid(egid))); 3705 tput16(arg3, tswap16(high2lowgid(sgid))); 3706 } 3707 } 3708 break; 3709 #endif 3710 case TARGET_NR_chown: 3711 p = lock_user_string(arg1); 3712 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 3713 unlock_user(p, arg1, 0); 3714 break; 3715 case TARGET_NR_setuid: 3716 ret = get_errno(setuid(low2highuid(arg1))); 3717 break; 3718 case TARGET_NR_setgid: 3719 ret = get_errno(setgid(low2highgid(arg1))); 3720 break; 3721 case TARGET_NR_setfsuid: 3722 ret = get_errno(setfsuid(arg1)); 3723 break; 3724 case TARGET_NR_setfsgid: 3725 ret = get_errno(setfsgid(arg1)); 3726 break; 3727 #endif /* USE_UID16 */ 3728 3729 #ifdef TARGET_NR_lchown32 3730 case TARGET_NR_lchown32: 3731 p = lock_user_string(arg1); 3732 ret = get_errno(lchown(p, arg2, arg3)); 3733 unlock_user(p, arg1, 0); 3734 break; 3735 #endif 3736 #ifdef TARGET_NR_getuid32 3737 case TARGET_NR_getuid32: 3738 ret = get_errno(getuid()); 3739 break; 3740 #endif 3741 #ifdef TARGET_NR_getgid32 3742 case TARGET_NR_getgid32: 3743 ret = get_errno(getgid()); 3744 break; 3745 #endif 3746 #ifdef TARGET_NR_geteuid32 3747 case TARGET_NR_geteuid32: 3748 ret = get_errno(geteuid()); 3749 break; 3750 #endif 3751 #ifdef TARGET_NR_getegid32 3752 case TARGET_NR_getegid32: 3753 ret = get_errno(getegid()); 3754 break; 3755 #endif 3756 #ifdef TARGET_NR_setreuid32 3757 case TARGET_NR_setreuid32: 3758 ret = get_errno(setreuid(arg1, arg2)); 3759 break; 3760 #endif 3761 #ifdef TARGET_NR_setregid32 3762 case TARGET_NR_setregid32: 3763 ret = get_errno(setregid(arg1, arg2)); 3764 break; 3765 #endif 3766 #ifdef TARGET_NR_getgroups32 3767 case TARGET_NR_getgroups32: 3768 { 3769 int gidsetsize = arg1; 3770 uint32_t *target_grouplist; 3771 gid_t *grouplist; 3772 int i; 3773 3774 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3775 ret = get_errno(getgroups(gidsetsize, grouplist)); 3776 if (!is_error(ret)) { 3777 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 3778 for(i = 0;i < gidsetsize; i++) 3779 target_grouplist[i] = tswap32(grouplist[i]); 3780 unlock_user(target_grouplist, arg2, gidsetsize * 4); 3781 } 3782 } 3783 break; 3784 #endif 3785 #ifdef TARGET_NR_setgroups32 3786 case TARGET_NR_setgroups32: 3787 { 3788 int gidsetsize = arg1; 3789 uint32_t *target_grouplist; 3790 gid_t *grouplist; 3791 int i; 3792 3793 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3794 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 3795 for(i = 0;i < gidsetsize; i++) 3796 grouplist[i] = tswap32(target_grouplist[i]); 3797 unlock_user(target_grouplist, arg2, 0); 3798 ret = get_errno(setgroups(gidsetsize, grouplist)); 3799 } 3800 break; 3801 #endif 3802 #ifdef TARGET_NR_fchown32 3803 case TARGET_NR_fchown32: 3804 ret = get_errno(fchown(arg1, arg2, arg3)); 3805 break; 3806 #endif 3807 #ifdef TARGET_NR_setresuid32 3808 case TARGET_NR_setresuid32: 3809 ret = get_errno(setresuid(arg1, arg2, arg3)); 3810 break; 3811 #endif 3812 #ifdef TARGET_NR_getresuid32 3813 case TARGET_NR_getresuid32: 3814 { 3815 uid_t ruid, euid, suid; 3816 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3817 if (!is_error(ret)) { 3818 tput32(arg1, tswap32(ruid)); 3819 tput32(arg2, tswap32(euid)); 3820 tput32(arg3, tswap32(suid)); 3821 } 3822 } 3823 break; 3824 #endif 3825 #ifdef TARGET_NR_setresgid32 3826 case TARGET_NR_setresgid32: 3827 ret = get_errno(setresgid(arg1, arg2, arg3)); 3828 break; 3829 #endif 3830 #ifdef TARGET_NR_getresgid32 3831 case TARGET_NR_getresgid32: 3832 { 3833 gid_t rgid, egid, sgid; 3834 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3835 if (!is_error(ret)) { 3836 tput32(arg1, tswap32(rgid)); 3837 tput32(arg2, tswap32(egid)); 3838 tput32(arg3, tswap32(sgid)); 3839 } 3840 } 3841 break; 3842 #endif 3843 #ifdef TARGET_NR_chown32 3844 case TARGET_NR_chown32: 3845 p = lock_user_string(arg1); 3846 ret = get_errno(chown(p, arg2, arg3)); 3847 unlock_user(p, arg1, 0); 3848 break; 3849 #endif 3850 #ifdef TARGET_NR_setuid32 3851 case TARGET_NR_setuid32: 3852 ret = get_errno(setuid(arg1)); 3853 break; 3854 #endif 3855 #ifdef TARGET_NR_setgid32 3856 case TARGET_NR_setgid32: 3857 ret = get_errno(setgid(arg1)); 3858 break; 3859 #endif 3860 #ifdef TARGET_NR_setfsuid32 3861 case TARGET_NR_setfsuid32: 3862 ret = get_errno(setfsuid(arg1)); 3863 break; 3864 #endif 3865 #ifdef TARGET_NR_setfsgid32 3866 case TARGET_NR_setfsgid32: 3867 ret = get_errno(setfsgid(arg1)); 3868 break; 3869 #endif 3870 3871 case TARGET_NR_pivot_root: 3872 goto unimplemented; 3873 #ifdef TARGET_NR_mincore 3874 case TARGET_NR_mincore: 3875 goto unimplemented; 3876 #endif 3877 #ifdef TARGET_NR_madvise 3878 case TARGET_NR_madvise: 3879 /* A straight passthrough may not be safe because qemu sometimes 3880 turns private flie-backed mappings into anonymous mappings. 3881 This will break MADV_DONTNEED. 3882 This is a hint, so ignoring and returning success is ok. */ 3883 ret = get_errno(0); 3884 break; 3885 #endif 3886 #if TARGET_LONG_BITS == 32 3887 case TARGET_NR_fcntl64: 3888 { 3889 int cmd; 3890 struct flock64 fl; 3891 struct target_flock64 *target_fl; 3892 #ifdef TARGET_ARM 3893 struct target_eabi_flock64 *target_efl; 3894 #endif 3895 3896 switch(arg2){ 3897 case TARGET_F_GETLK64: 3898 cmd = F_GETLK64; 3899 break; 3900 case TARGET_F_SETLK64: 3901 cmd = F_SETLK64; 3902 break; 3903 case TARGET_F_SETLKW64: 3904 cmd = F_SETLK64; 3905 break; 3906 default: 3907 cmd = arg2; 3908 break; 3909 } 3910 3911 switch(arg2) { 3912 case TARGET_F_GETLK64: 3913 #ifdef TARGET_ARM 3914 if (((CPUARMState *)cpu_env)->eabi) { 3915 lock_user_struct(target_efl, arg3, 1); 3916 fl.l_type = tswap16(target_efl->l_type); 3917 fl.l_whence = tswap16(target_efl->l_whence); 3918 fl.l_start = tswap64(target_efl->l_start); 3919 fl.l_len = tswap64(target_efl->l_len); 3920 fl.l_pid = tswapl(target_efl->l_pid); 3921 unlock_user_struct(target_efl, arg3, 0); 3922 } else 3923 #endif 3924 { 3925 lock_user_struct(target_fl, arg3, 1); 3926 fl.l_type = tswap16(target_fl->l_type); 3927 fl.l_whence = tswap16(target_fl->l_whence); 3928 fl.l_start = tswap64(target_fl->l_start); 3929 fl.l_len = tswap64(target_fl->l_len); 3930 fl.l_pid = tswapl(target_fl->l_pid); 3931 unlock_user_struct(target_fl, arg3, 0); 3932 } 3933 ret = get_errno(fcntl(arg1, cmd, &fl)); 3934 if (ret == 0) { 3935 #ifdef TARGET_ARM 3936 if (((CPUARMState *)cpu_env)->eabi) { 3937 lock_user_struct(target_efl, arg3, 0); 3938 target_efl->l_type = tswap16(fl.l_type); 3939 target_efl->l_whence = tswap16(fl.l_whence); 3940 target_efl->l_start = tswap64(fl.l_start); 3941 target_efl->l_len = tswap64(fl.l_len); 3942 target_efl->l_pid = tswapl(fl.l_pid); 3943 unlock_user_struct(target_efl, arg3, 1); 3944 } else 3945 #endif 3946 { 3947 lock_user_struct(target_fl, arg3, 0); 3948 target_fl->l_type = tswap16(fl.l_type); 3949 target_fl->l_whence = tswap16(fl.l_whence); 3950 target_fl->l_start = tswap64(fl.l_start); 3951 target_fl->l_len = tswap64(fl.l_len); 3952 target_fl->l_pid = tswapl(fl.l_pid); 3953 unlock_user_struct(target_fl, arg3, 1); 3954 } 3955 } 3956 break; 3957 3958 case TARGET_F_SETLK64: 3959 case TARGET_F_SETLKW64: 3960 #ifdef TARGET_ARM 3961 if (((CPUARMState *)cpu_env)->eabi) { 3962 lock_user_struct(target_efl, arg3, 1); 3963 fl.l_type = tswap16(target_efl->l_type); 3964 fl.l_whence = tswap16(target_efl->l_whence); 3965 fl.l_start = tswap64(target_efl->l_start); 3966 fl.l_len = tswap64(target_efl->l_len); 3967 fl.l_pid = tswapl(target_efl->l_pid); 3968 unlock_user_struct(target_efl, arg3, 0); 3969 } else 3970 #endif 3971 { 3972 lock_user_struct(target_fl, arg3, 1); 3973 fl.l_type = tswap16(target_fl->l_type); 3974 fl.l_whence = tswap16(target_fl->l_whence); 3975 fl.l_start = tswap64(target_fl->l_start); 3976 fl.l_len = tswap64(target_fl->l_len); 3977 fl.l_pid = tswapl(target_fl->l_pid); 3978 unlock_user_struct(target_fl, arg3, 0); 3979 } 3980 ret = get_errno(fcntl(arg1, cmd, &fl)); 3981 break; 3982 default: 3983 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 3984 break; 3985 } 3986 break; 3987 } 3988 #endif 3989 #ifdef TARGET_NR_cacheflush 3990 case TARGET_NR_cacheflush: 3991 /* self-modifying code is handled automatically, so nothing needed */ 3992 ret = 0; 3993 break; 3994 #endif 3995 #ifdef TARGET_NR_security 3996 case TARGET_NR_security: 3997 goto unimplemented; 3998 #endif 3999 #ifdef TARGET_NR_getpagesize 4000 case TARGET_NR_getpagesize: 4001 ret = TARGET_PAGE_SIZE; 4002 break; 4003 #endif 4004 case TARGET_NR_gettid: 4005 ret = get_errno(gettid()); 4006 break; 4007 case TARGET_NR_readahead: 4008 goto unimplemented; 4009 #ifdef TARGET_NR_setxattr 4010 case TARGET_NR_setxattr: 4011 case TARGET_NR_lsetxattr: 4012 case TARGET_NR_fsetxattr: 4013 case TARGET_NR_getxattr: 4014 case TARGET_NR_lgetxattr: 4015 case TARGET_NR_fgetxattr: 4016 case TARGET_NR_listxattr: 4017 case TARGET_NR_llistxattr: 4018 case TARGET_NR_flistxattr: 4019 case TARGET_NR_removexattr: 4020 case TARGET_NR_lremovexattr: 4021 case TARGET_NR_fremovexattr: 4022 goto unimplemented_nowarn; 4023 #endif 4024 #ifdef TARGET_NR_set_thread_area 4025 case TARGET_NR_set_thread_area: 4026 #ifdef TARGET_MIPS 4027 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 4028 ret = 0; 4029 break; 4030 #else 4031 goto unimplemented_nowarn; 4032 #endif 4033 #endif 4034 #ifdef TARGET_NR_get_thread_area 4035 case TARGET_NR_get_thread_area: 4036 goto unimplemented_nowarn; 4037 #endif 4038 #ifdef TARGET_NR_getdomainname 4039 case TARGET_NR_getdomainname: 4040 goto unimplemented_nowarn; 4041 #endif 4042 4043 #ifdef TARGET_NR_clock_gettime 4044 case TARGET_NR_clock_gettime: 4045 { 4046 struct timespec ts; 4047 ret = get_errno(clock_gettime(arg1, &ts)); 4048 if (!is_error(ret)) { 4049 host_to_target_timespec(arg2, &ts); 4050 } 4051 break; 4052 } 4053 #endif 4054 #ifdef TARGET_NR_clock_getres 4055 case TARGET_NR_clock_getres: 4056 { 4057 struct timespec ts; 4058 ret = get_errno(clock_getres(arg1, &ts)); 4059 if (!is_error(ret)) { 4060 host_to_target_timespec(arg2, &ts); 4061 } 4062 break; 4063 } 4064 #endif 4065 4066 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 4067 case TARGET_NR_set_tid_address: 4068 ret = get_errno(set_tid_address((int *) arg1)); 4069 break; 4070 #endif 4071 4072 default: 4073 unimplemented: 4074 gemu_log("qemu: Unsupported syscall: %d\n", num); 4075 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) 4076 unimplemented_nowarn: 4077 #endif 4078 ret = -ENOSYS; 4079 break; 4080 } 4081 fail: 4082 #ifdef DEBUG 4083 gemu_log(" = %ld\n", ret); 4084 #endif 4085 return ret; 4086 } 4087 4088