1 /* 2 * Linux syscalls 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <stdarg.h> 23 #include <string.h> 24 #include <elf.h> 25 #include <endian.h> 26 #include <errno.h> 27 #include <unistd.h> 28 #include <fcntl.h> 29 #include <time.h> 30 #include <sys/types.h> 31 #include <sys/wait.h> 32 #include <sys/time.h> 33 #include <sys/stat.h> 34 #include <sys/mount.h> 35 #include <sys/prctl.h> 36 #include <sys/resource.h> 37 #include <sys/mman.h> 38 #include <sys/swap.h> 39 #include <signal.h> 40 #include <sched.h> 41 #include <sys/socket.h> 42 #include <sys/uio.h> 43 #include <sys/poll.h> 44 #include <sys/times.h> 45 #include <sys/shm.h> 46 #include <sys/sem.h> 47 #include <sys/statfs.h> 48 #include <utime.h> 49 #include <sys/sysinfo.h> 50 //#include <sys/user.h> 51 #include <netinet/ip.h> 52 #include <netinet/tcp.h> 53 54 #define termios host_termios 55 #define winsize host_winsize 56 #define termio host_termio 57 #define sgttyb host_sgttyb /* same as target */ 58 #define tchars host_tchars /* same as target */ 59 #define ltchars host_ltchars /* same as target */ 60 61 #include <linux/termios.h> 62 #include <linux/unistd.h> 63 #include <linux/utsname.h> 64 #include <linux/cdrom.h> 65 #include <linux/hdreg.h> 66 #include <linux/soundcard.h> 67 #include <linux/dirent.h> 68 #include <linux/kd.h> 69 70 #include "qemu.h" 71 72 //#define DEBUG 73 74 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \ 75 || defined(TARGET_M68K) 76 /* 16 bit uid wrappers emulation */ 77 #define USE_UID16 78 #endif 79 80 //#include <linux/msdos_fs.h> 81 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 82 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 83 84 85 #undef _syscall0 86 #undef _syscall1 87 #undef _syscall2 88 #undef _syscall3 89 #undef _syscall4 90 #undef _syscall5 91 #undef _syscall6 92 93 #define _syscall0(type,name) \ 94 type name (void) \ 95 { \ 96 return syscall(__NR_##name); \ 97 } 98 99 #define _syscall1(type,name,type1,arg1) \ 100 type name (type1 arg1) \ 101 { \ 102 return syscall(__NR_##name, arg1); \ 103 } 104 105 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 106 type name (type1 arg1,type2 arg2) \ 107 { \ 108 return syscall(__NR_##name, arg1, arg2); \ 109 } 110 111 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 112 type name (type1 arg1,type2 arg2,type3 arg3) \ 113 { \ 114 return syscall(__NR_##name, arg1, arg2, arg3); \ 115 } 116 117 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 118 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 119 { \ 120 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 121 } 122 123 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 124 type5,arg5) \ 125 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 126 { \ 127 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 128 } 129 130 131 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 132 type5,arg5,type6,arg6) \ 133 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ 134 { \ 135 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 136 } 137 138 139 #define __NR_sys_uname __NR_uname 140 #define __NR_sys_getcwd1 __NR_getcwd 141 #define __NR_sys_getdents __NR_getdents 142 #define __NR_sys_getdents64 __NR_getdents64 143 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 144 #define __NR_sys_syslog __NR_syslog 145 146 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 147 #define __NR__llseek __NR_lseek 148 #endif 149 150 #ifdef __NR_gettid 151 _syscall0(int, gettid) 152 #else 153 static int gettid(void) { 154 return -ENOSYS; 155 } 156 #endif 157 _syscall1(int,sys_uname,struct new_utsname *,buf) 158 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 159 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 160 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 161 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 162 loff_t *, res, uint, wh); 163 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 164 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 165 #ifdef __NR_exit_group 166 _syscall1(int,exit_group,int,error_code) 167 #endif 168 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 169 _syscall1(int,set_tid_address,int *,tidptr) 170 #endif 171 172 extern int personality(int); 173 extern int flock(int, int); 174 extern int setfsuid(int); 175 extern int setfsgid(int); 176 extern int setresuid(uid_t, uid_t, uid_t); 177 extern int getresuid(uid_t *, uid_t *, uid_t *); 178 extern int setresgid(gid_t, gid_t, gid_t); 179 extern int getresgid(gid_t *, gid_t *, gid_t *); 180 extern int setgroups(int, gid_t *); 181 182 static inline long get_errno(long ret) 183 { 184 if (ret == -1) 185 return -errno; 186 else 187 return ret; 188 } 189 190 static inline int is_error(long ret) 191 { 192 return (unsigned long)ret >= (unsigned long)(-4096); 193 } 194 195 static target_ulong target_brk; 196 static target_ulong target_original_brk; 197 198 void target_set_brk(target_ulong new_brk) 199 { 200 target_original_brk = target_brk = new_brk; 201 } 202 203 long do_brk(target_ulong new_brk) 204 { 205 target_ulong brk_page; 206 long mapped_addr; 207 int new_alloc_size; 208 209 if (!new_brk) 210 return target_brk; 211 if (new_brk < target_original_brk) 212 return -ENOMEM; 213 214 brk_page = HOST_PAGE_ALIGN(target_brk); 215 216 /* If the new brk is less than this, set it and we're done... */ 217 if (new_brk < brk_page) { 218 target_brk = new_brk; 219 return target_brk; 220 } 221 222 /* We need to allocate more memory after the brk... */ 223 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 224 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 225 PROT_READ|PROT_WRITE, 226 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 227 if (is_error(mapped_addr)) { 228 return mapped_addr; 229 } else { 230 target_brk = new_brk; 231 return target_brk; 232 } 233 } 234 235 static inline fd_set *target_to_host_fds(fd_set *fds, 236 target_long *target_fds, int n) 237 { 238 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 239 return (fd_set *)target_fds; 240 #else 241 int i, b; 242 if (target_fds) { 243 FD_ZERO(fds); 244 for(i = 0;i < n; i++) { 245 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 246 (i & (TARGET_LONG_BITS - 1))) & 1; 247 if (b) 248 FD_SET(i, fds); 249 } 250 return fds; 251 } else { 252 return NULL; 253 } 254 #endif 255 } 256 257 static inline void host_to_target_fds(target_long *target_fds, 258 fd_set *fds, int n) 259 { 260 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 261 /* nothing to do */ 262 #else 263 int i, nw, j, k; 264 target_long v; 265 266 if (target_fds) { 267 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS; 268 k = 0; 269 for(i = 0;i < nw; i++) { 270 v = 0; 271 for(j = 0; j < TARGET_LONG_BITS; j++) { 272 v |= ((FD_ISSET(k, fds) != 0) << j); 273 k++; 274 } 275 target_fds[i] = tswapl(v); 276 } 277 } 278 #endif 279 } 280 281 #if defined(__alpha__) 282 #define HOST_HZ 1024 283 #else 284 #define HOST_HZ 100 285 #endif 286 287 static inline long host_to_target_clock_t(long ticks) 288 { 289 #if HOST_HZ == TARGET_HZ 290 return ticks; 291 #else 292 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 293 #endif 294 } 295 296 static inline void host_to_target_rusage(target_ulong target_addr, 297 const struct rusage *rusage) 298 { 299 struct target_rusage *target_rusage; 300 301 lock_user_struct(target_rusage, target_addr, 0); 302 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 303 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 304 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 305 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 306 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 307 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 308 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 309 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 310 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 311 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 312 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 313 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 314 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 315 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 316 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 317 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 318 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 319 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 320 unlock_user_struct(target_rusage, target_addr, 1); 321 } 322 323 static inline void target_to_host_timeval(struct timeval *tv, 324 target_ulong target_addr) 325 { 326 struct target_timeval *target_tv; 327 328 lock_user_struct(target_tv, target_addr, 1); 329 tv->tv_sec = tswapl(target_tv->tv_sec); 330 tv->tv_usec = tswapl(target_tv->tv_usec); 331 unlock_user_struct(target_tv, target_addr, 0); 332 } 333 334 static inline void host_to_target_timeval(target_ulong target_addr, 335 const struct timeval *tv) 336 { 337 struct target_timeval *target_tv; 338 339 lock_user_struct(target_tv, target_addr, 0); 340 target_tv->tv_sec = tswapl(tv->tv_sec); 341 target_tv->tv_usec = tswapl(tv->tv_usec); 342 unlock_user_struct(target_tv, target_addr, 1); 343 } 344 345 346 static long do_select(long n, 347 target_ulong rfd_p, target_ulong wfd_p, 348 target_ulong efd_p, target_ulong target_tv) 349 { 350 fd_set rfds, wfds, efds; 351 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 352 target_long *target_rfds, *target_wfds, *target_efds; 353 struct timeval tv, *tv_ptr; 354 long ret; 355 int ok; 356 357 if (rfd_p) { 358 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1); 359 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 360 } else { 361 target_rfds = NULL; 362 rfds_ptr = NULL; 363 } 364 if (wfd_p) { 365 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1); 366 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 367 } else { 368 target_wfds = NULL; 369 wfds_ptr = NULL; 370 } 371 if (efd_p) { 372 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1); 373 efds_ptr = target_to_host_fds(&efds, target_efds, n); 374 } else { 375 target_efds = NULL; 376 efds_ptr = NULL; 377 } 378 379 if (target_tv) { 380 target_to_host_timeval(&tv, target_tv); 381 tv_ptr = &tv; 382 } else { 383 tv_ptr = NULL; 384 } 385 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 386 ok = !is_error(ret); 387 388 if (ok) { 389 host_to_target_fds(target_rfds, rfds_ptr, n); 390 host_to_target_fds(target_wfds, wfds_ptr, n); 391 host_to_target_fds(target_efds, efds_ptr, n); 392 393 if (target_tv) { 394 host_to_target_timeval(target_tv, &tv); 395 } 396 } 397 if (target_rfds) 398 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0); 399 if (target_wfds) 400 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0); 401 if (target_efds) 402 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0); 403 404 return ret; 405 } 406 407 static inline void target_to_host_sockaddr(struct sockaddr *addr, 408 target_ulong target_addr, 409 socklen_t len) 410 { 411 struct target_sockaddr *target_saddr; 412 413 target_saddr = lock_user(target_addr, len, 1); 414 memcpy(addr, target_saddr, len); 415 addr->sa_family = tswap16(target_saddr->sa_family); 416 unlock_user(target_saddr, target_addr, 0); 417 } 418 419 static inline void host_to_target_sockaddr(target_ulong target_addr, 420 struct sockaddr *addr, 421 socklen_t len) 422 { 423 struct target_sockaddr *target_saddr; 424 425 target_saddr = lock_user(target_addr, len, 0); 426 memcpy(target_saddr, addr, len); 427 target_saddr->sa_family = tswap16(addr->sa_family); 428 unlock_user(target_saddr, target_addr, len); 429 } 430 431 /* ??? Should this also swap msgh->name? */ 432 static inline void target_to_host_cmsg(struct msghdr *msgh, 433 struct target_msghdr *target_msgh) 434 { 435 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 436 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 437 socklen_t space = 0; 438 439 while (cmsg && target_cmsg) { 440 void *data = CMSG_DATA(cmsg); 441 void *target_data = TARGET_CMSG_DATA(target_cmsg); 442 443 int len = tswapl(target_cmsg->cmsg_len) 444 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 445 446 space += CMSG_SPACE(len); 447 if (space > msgh->msg_controllen) { 448 space -= CMSG_SPACE(len); 449 gemu_log("Host cmsg overflow\n"); 450 break; 451 } 452 453 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 454 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 455 cmsg->cmsg_len = CMSG_LEN(len); 456 457 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 458 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 459 memcpy(data, target_data, len); 460 } else { 461 int *fd = (int *)data; 462 int *target_fd = (int *)target_data; 463 int i, numfds = len / sizeof(int); 464 465 for (i = 0; i < numfds; i++) 466 fd[i] = tswap32(target_fd[i]); 467 } 468 469 cmsg = CMSG_NXTHDR(msgh, cmsg); 470 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 471 } 472 473 msgh->msg_controllen = space; 474 } 475 476 /* ??? Should this also swap msgh->name? */ 477 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 478 struct msghdr *msgh) 479 { 480 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 481 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 482 socklen_t space = 0; 483 484 while (cmsg && target_cmsg) { 485 void *data = CMSG_DATA(cmsg); 486 void *target_data = TARGET_CMSG_DATA(target_cmsg); 487 488 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 489 490 space += TARGET_CMSG_SPACE(len); 491 if (space > tswapl(target_msgh->msg_controllen)) { 492 space -= TARGET_CMSG_SPACE(len); 493 gemu_log("Target cmsg overflow\n"); 494 break; 495 } 496 497 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 498 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 499 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 500 501 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 502 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 503 memcpy(target_data, data, len); 504 } else { 505 int *fd = (int *)data; 506 int *target_fd = (int *)target_data; 507 int i, numfds = len / sizeof(int); 508 509 for (i = 0; i < numfds; i++) 510 target_fd[i] = tswap32(fd[i]); 511 } 512 513 cmsg = CMSG_NXTHDR(msgh, cmsg); 514 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 515 } 516 517 msgh->msg_controllen = tswapl(space); 518 } 519 520 static long do_setsockopt(int sockfd, int level, int optname, 521 target_ulong optval, socklen_t optlen) 522 { 523 int val, ret; 524 525 switch(level) { 526 case SOL_TCP: 527 /* TCP options all take an 'int' value. */ 528 if (optlen < sizeof(uint32_t)) 529 return -EINVAL; 530 531 val = tget32(optval); 532 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 533 break; 534 case SOL_IP: 535 switch(optname) { 536 case IP_TOS: 537 case IP_TTL: 538 case IP_HDRINCL: 539 case IP_ROUTER_ALERT: 540 case IP_RECVOPTS: 541 case IP_RETOPTS: 542 case IP_PKTINFO: 543 case IP_MTU_DISCOVER: 544 case IP_RECVERR: 545 case IP_RECVTOS: 546 #ifdef IP_FREEBIND 547 case IP_FREEBIND: 548 #endif 549 case IP_MULTICAST_TTL: 550 case IP_MULTICAST_LOOP: 551 val = 0; 552 if (optlen >= sizeof(uint32_t)) { 553 val = tget32(optval); 554 } else if (optlen >= 1) { 555 val = tget8(optval); 556 } 557 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 558 break; 559 default: 560 goto unimplemented; 561 } 562 break; 563 case TARGET_SOL_SOCKET: 564 switch (optname) { 565 /* Options with 'int' argument. */ 566 case TARGET_SO_DEBUG: 567 optname = SO_DEBUG; 568 break; 569 case TARGET_SO_REUSEADDR: 570 optname = SO_REUSEADDR; 571 break; 572 case TARGET_SO_TYPE: 573 optname = SO_TYPE; 574 break; 575 case TARGET_SO_ERROR: 576 optname = SO_ERROR; 577 break; 578 case TARGET_SO_DONTROUTE: 579 optname = SO_DONTROUTE; 580 break; 581 case TARGET_SO_BROADCAST: 582 optname = SO_BROADCAST; 583 break; 584 case TARGET_SO_SNDBUF: 585 optname = SO_SNDBUF; 586 break; 587 case TARGET_SO_RCVBUF: 588 optname = SO_RCVBUF; 589 break; 590 case TARGET_SO_KEEPALIVE: 591 optname = SO_KEEPALIVE; 592 break; 593 case TARGET_SO_OOBINLINE: 594 optname = SO_OOBINLINE; 595 break; 596 case TARGET_SO_NO_CHECK: 597 optname = SO_NO_CHECK; 598 break; 599 case TARGET_SO_PRIORITY: 600 optname = SO_PRIORITY; 601 break; 602 #ifdef SO_BSDCOMPAT 603 case TARGET_SO_BSDCOMPAT: 604 optname = SO_BSDCOMPAT; 605 break; 606 #endif 607 case TARGET_SO_PASSCRED: 608 optname = SO_PASSCRED; 609 break; 610 case TARGET_SO_TIMESTAMP: 611 optname = SO_TIMESTAMP; 612 break; 613 case TARGET_SO_RCVLOWAT: 614 optname = SO_RCVLOWAT; 615 break; 616 case TARGET_SO_RCVTIMEO: 617 optname = SO_RCVTIMEO; 618 break; 619 case TARGET_SO_SNDTIMEO: 620 optname = SO_SNDTIMEO; 621 break; 622 break; 623 default: 624 goto unimplemented; 625 } 626 if (optlen < sizeof(uint32_t)) 627 return -EINVAL; 628 629 val = tget32(optval); 630 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 631 break; 632 default: 633 unimplemented: 634 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 635 ret = -ENOSYS; 636 } 637 return ret; 638 } 639 640 static long do_getsockopt(int sockfd, int level, int optname, 641 target_ulong optval, target_ulong optlen) 642 { 643 int len, lv, val, ret; 644 645 switch(level) { 646 case TARGET_SOL_SOCKET: 647 level = SOL_SOCKET; 648 switch (optname) { 649 case TARGET_SO_LINGER: 650 case TARGET_SO_RCVTIMEO: 651 case TARGET_SO_SNDTIMEO: 652 case TARGET_SO_PEERCRED: 653 case TARGET_SO_PEERNAME: 654 /* These don't just return a single integer */ 655 goto unimplemented; 656 default: 657 goto int_case; 658 } 659 break; 660 case SOL_TCP: 661 /* TCP options all take an 'int' value. */ 662 int_case: 663 len = tget32(optlen); 664 if (len < 0) 665 return -EINVAL; 666 lv = sizeof(int); 667 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 668 if (ret < 0) 669 return ret; 670 val = tswap32(val); 671 if (len > lv) 672 len = lv; 673 if (len == 4) 674 tput32(optval, val); 675 else 676 tput8(optval, val); 677 tput32(optlen, len); 678 break; 679 case SOL_IP: 680 switch(optname) { 681 case IP_TOS: 682 case IP_TTL: 683 case IP_HDRINCL: 684 case IP_ROUTER_ALERT: 685 case IP_RECVOPTS: 686 case IP_RETOPTS: 687 case IP_PKTINFO: 688 case IP_MTU_DISCOVER: 689 case IP_RECVERR: 690 case IP_RECVTOS: 691 #ifdef IP_FREEBIND 692 case IP_FREEBIND: 693 #endif 694 case IP_MULTICAST_TTL: 695 case IP_MULTICAST_LOOP: 696 len = tget32(optlen); 697 if (len < 0) 698 return -EINVAL; 699 lv = sizeof(int); 700 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 701 if (ret < 0) 702 return ret; 703 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 704 len = 1; 705 tput32(optlen, len); 706 tput8(optval, val); 707 } else { 708 if (len > sizeof(int)) 709 len = sizeof(int); 710 tput32(optlen, len); 711 tput32(optval, val); 712 } 713 break; 714 default: 715 goto unimplemented; 716 } 717 break; 718 default: 719 unimplemented: 720 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 721 level, optname); 722 ret = -ENOSYS; 723 break; 724 } 725 return ret; 726 } 727 728 static void lock_iovec(struct iovec *vec, target_ulong target_addr, 729 int count, int copy) 730 { 731 struct target_iovec *target_vec; 732 target_ulong base; 733 int i; 734 735 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 736 for(i = 0;i < count; i++) { 737 base = tswapl(target_vec[i].iov_base); 738 vec[i].iov_len = tswapl(target_vec[i].iov_len); 739 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 740 } 741 unlock_user (target_vec, target_addr, 0); 742 } 743 744 static void unlock_iovec(struct iovec *vec, target_ulong target_addr, 745 int count, int copy) 746 { 747 struct target_iovec *target_vec; 748 target_ulong base; 749 int i; 750 751 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 752 for(i = 0;i < count; i++) { 753 base = tswapl(target_vec[i].iov_base); 754 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 755 } 756 unlock_user (target_vec, target_addr, 0); 757 } 758 759 static long do_socket(int domain, int type, int protocol) 760 { 761 #if defined(TARGET_MIPS) 762 switch(type) { 763 case TARGET_SOCK_DGRAM: 764 type = SOCK_DGRAM; 765 break; 766 case TARGET_SOCK_STREAM: 767 type = SOCK_STREAM; 768 break; 769 case TARGET_SOCK_RAW: 770 type = SOCK_RAW; 771 break; 772 case TARGET_SOCK_RDM: 773 type = SOCK_RDM; 774 break; 775 case TARGET_SOCK_SEQPACKET: 776 type = SOCK_SEQPACKET; 777 break; 778 case TARGET_SOCK_PACKET: 779 type = SOCK_PACKET; 780 break; 781 } 782 #endif 783 return get_errno(socket(domain, type, protocol)); 784 } 785 786 static long do_bind(int sockfd, target_ulong target_addr, 787 socklen_t addrlen) 788 { 789 void *addr = alloca(addrlen); 790 791 target_to_host_sockaddr(addr, target_addr, addrlen); 792 return get_errno(bind(sockfd, addr, addrlen)); 793 } 794 795 static long do_connect(int sockfd, target_ulong target_addr, 796 socklen_t addrlen) 797 { 798 void *addr = alloca(addrlen); 799 800 target_to_host_sockaddr(addr, target_addr, addrlen); 801 return get_errno(connect(sockfd, addr, addrlen)); 802 } 803 804 static long do_sendrecvmsg(int fd, target_ulong target_msg, 805 int flags, int send) 806 { 807 long ret; 808 struct target_msghdr *msgp; 809 struct msghdr msg; 810 int count; 811 struct iovec *vec; 812 target_ulong target_vec; 813 814 lock_user_struct(msgp, target_msg, 1); 815 if (msgp->msg_name) { 816 msg.msg_namelen = tswap32(msgp->msg_namelen); 817 msg.msg_name = alloca(msg.msg_namelen); 818 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 819 msg.msg_namelen); 820 } else { 821 msg.msg_name = NULL; 822 msg.msg_namelen = 0; 823 } 824 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 825 msg.msg_control = alloca(msg.msg_controllen); 826 msg.msg_flags = tswap32(msgp->msg_flags); 827 828 count = tswapl(msgp->msg_iovlen); 829 vec = alloca(count * sizeof(struct iovec)); 830 target_vec = tswapl(msgp->msg_iov); 831 lock_iovec(vec, target_vec, count, send); 832 msg.msg_iovlen = count; 833 msg.msg_iov = vec; 834 835 if (send) { 836 target_to_host_cmsg(&msg, msgp); 837 ret = get_errno(sendmsg(fd, &msg, flags)); 838 } else { 839 ret = get_errno(recvmsg(fd, &msg, flags)); 840 if (!is_error(ret)) 841 host_to_target_cmsg(msgp, &msg); 842 } 843 unlock_iovec(vec, target_vec, count, !send); 844 return ret; 845 } 846 847 static long do_accept(int fd, target_ulong target_addr, 848 target_ulong target_addrlen) 849 { 850 socklen_t addrlen = tget32(target_addrlen); 851 void *addr = alloca(addrlen); 852 long ret; 853 854 ret = get_errno(accept(fd, addr, &addrlen)); 855 if (!is_error(ret)) { 856 host_to_target_sockaddr(target_addr, addr, addrlen); 857 tput32(target_addrlen, addrlen); 858 } 859 return ret; 860 } 861 862 static long do_getpeername(int fd, target_ulong target_addr, 863 target_ulong target_addrlen) 864 { 865 socklen_t addrlen = tget32(target_addrlen); 866 void *addr = alloca(target_addrlen); 867 long ret; 868 869 ret = get_errno(getpeername(fd, addr, &addrlen)); 870 if (!is_error(ret)) { 871 host_to_target_sockaddr(target_addr, addr, addrlen); 872 tput32(target_addrlen, addrlen); 873 } 874 return ret; 875 } 876 877 static long do_getsockname(int fd, target_ulong target_addr, 878 target_ulong target_addrlen) 879 { 880 socklen_t addrlen = tget32(target_addrlen); 881 void *addr = alloca(target_addrlen); 882 long ret; 883 884 ret = get_errno(getsockname(fd, addr, &addrlen)); 885 if (!is_error(ret)) { 886 host_to_target_sockaddr(target_addr, addr, addrlen); 887 tput32(target_addrlen, addrlen); 888 } 889 return ret; 890 } 891 892 static long do_socketpair(int domain, int type, int protocol, 893 target_ulong target_tab) 894 { 895 int tab[2]; 896 long ret; 897 898 ret = get_errno(socketpair(domain, type, protocol, tab)); 899 if (!is_error(ret)) { 900 tput32(target_tab, tab[0]); 901 tput32(target_tab + 4, tab[1]); 902 } 903 return ret; 904 } 905 906 static long do_sendto(int fd, target_ulong msg, size_t len, int flags, 907 target_ulong target_addr, socklen_t addrlen) 908 { 909 void *addr; 910 void *host_msg; 911 long ret; 912 913 host_msg = lock_user(msg, len, 1); 914 if (target_addr) { 915 addr = alloca(addrlen); 916 target_to_host_sockaddr(addr, target_addr, addrlen); 917 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 918 } else { 919 ret = get_errno(send(fd, host_msg, len, flags)); 920 } 921 unlock_user(host_msg, msg, 0); 922 return ret; 923 } 924 925 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags, 926 target_ulong target_addr, target_ulong target_addrlen) 927 { 928 socklen_t addrlen; 929 void *addr; 930 void *host_msg; 931 long ret; 932 933 host_msg = lock_user(msg, len, 0); 934 if (target_addr) { 935 addrlen = tget32(target_addrlen); 936 addr = alloca(addrlen); 937 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 938 } else { 939 addr = NULL; /* To keep compiler quiet. */ 940 ret = get_errno(recv(fd, host_msg, len, flags)); 941 } 942 if (!is_error(ret)) { 943 if (target_addr) { 944 host_to_target_sockaddr(target_addr, addr, addrlen); 945 tput32(target_addrlen, addrlen); 946 } 947 unlock_user(host_msg, msg, len); 948 } else { 949 unlock_user(host_msg, msg, 0); 950 } 951 return ret; 952 } 953 954 static long do_socketcall(int num, target_ulong vptr) 955 { 956 long ret; 957 const int n = sizeof(target_ulong); 958 959 switch(num) { 960 case SOCKOP_socket: 961 { 962 int domain = tgetl(vptr); 963 int type = tgetl(vptr + n); 964 int protocol = tgetl(vptr + 2 * n); 965 ret = do_socket(domain, type, protocol); 966 } 967 break; 968 case SOCKOP_bind: 969 { 970 int sockfd = tgetl(vptr); 971 target_ulong target_addr = tgetl(vptr + n); 972 socklen_t addrlen = tgetl(vptr + 2 * n); 973 ret = do_bind(sockfd, target_addr, addrlen); 974 } 975 break; 976 case SOCKOP_connect: 977 { 978 int sockfd = tgetl(vptr); 979 target_ulong target_addr = tgetl(vptr + n); 980 socklen_t addrlen = tgetl(vptr + 2 * n); 981 ret = do_connect(sockfd, target_addr, addrlen); 982 } 983 break; 984 case SOCKOP_listen: 985 { 986 int sockfd = tgetl(vptr); 987 int backlog = tgetl(vptr + n); 988 ret = get_errno(listen(sockfd, backlog)); 989 } 990 break; 991 case SOCKOP_accept: 992 { 993 int sockfd = tgetl(vptr); 994 target_ulong target_addr = tgetl(vptr + n); 995 target_ulong target_addrlen = tgetl(vptr + 2 * n); 996 ret = do_accept(sockfd, target_addr, target_addrlen); 997 } 998 break; 999 case SOCKOP_getsockname: 1000 { 1001 int sockfd = tgetl(vptr); 1002 target_ulong target_addr = tgetl(vptr + n); 1003 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1004 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1005 } 1006 break; 1007 case SOCKOP_getpeername: 1008 { 1009 int sockfd = tgetl(vptr); 1010 target_ulong target_addr = tgetl(vptr + n); 1011 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1012 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1013 } 1014 break; 1015 case SOCKOP_socketpair: 1016 { 1017 int domain = tgetl(vptr); 1018 int type = tgetl(vptr + n); 1019 int protocol = tgetl(vptr + 2 * n); 1020 target_ulong tab = tgetl(vptr + 3 * n); 1021 ret = do_socketpair(domain, type, protocol, tab); 1022 } 1023 break; 1024 case SOCKOP_send: 1025 { 1026 int sockfd = tgetl(vptr); 1027 target_ulong msg = tgetl(vptr + n); 1028 size_t len = tgetl(vptr + 2 * n); 1029 int flags = tgetl(vptr + 3 * n); 1030 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1031 } 1032 break; 1033 case SOCKOP_recv: 1034 { 1035 int sockfd = tgetl(vptr); 1036 target_ulong msg = tgetl(vptr + n); 1037 size_t len = tgetl(vptr + 2 * n); 1038 int flags = tgetl(vptr + 3 * n); 1039 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1040 } 1041 break; 1042 case SOCKOP_sendto: 1043 { 1044 int sockfd = tgetl(vptr); 1045 target_ulong msg = tgetl(vptr + n); 1046 size_t len = tgetl(vptr + 2 * n); 1047 int flags = tgetl(vptr + 3 * n); 1048 target_ulong addr = tgetl(vptr + 4 * n); 1049 socklen_t addrlen = tgetl(vptr + 5 * n); 1050 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1051 } 1052 break; 1053 case SOCKOP_recvfrom: 1054 { 1055 int sockfd = tgetl(vptr); 1056 target_ulong msg = tgetl(vptr + n); 1057 size_t len = tgetl(vptr + 2 * n); 1058 int flags = tgetl(vptr + 3 * n); 1059 target_ulong addr = tgetl(vptr + 4 * n); 1060 target_ulong addrlen = tgetl(vptr + 5 * n); 1061 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1062 } 1063 break; 1064 case SOCKOP_shutdown: 1065 { 1066 int sockfd = tgetl(vptr); 1067 int how = tgetl(vptr + n); 1068 1069 ret = get_errno(shutdown(sockfd, how)); 1070 } 1071 break; 1072 case SOCKOP_sendmsg: 1073 case SOCKOP_recvmsg: 1074 { 1075 int fd; 1076 target_ulong target_msg; 1077 int flags; 1078 1079 fd = tgetl(vptr); 1080 target_msg = tgetl(vptr + n); 1081 flags = tgetl(vptr + 2 * n); 1082 1083 ret = do_sendrecvmsg(fd, target_msg, flags, 1084 (num == SOCKOP_sendmsg)); 1085 } 1086 break; 1087 case SOCKOP_setsockopt: 1088 { 1089 int sockfd = tgetl(vptr); 1090 int level = tgetl(vptr + n); 1091 int optname = tgetl(vptr + 2 * n); 1092 target_ulong optval = tgetl(vptr + 3 * n); 1093 socklen_t optlen = tgetl(vptr + 4 * n); 1094 1095 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1096 } 1097 break; 1098 case SOCKOP_getsockopt: 1099 { 1100 int sockfd = tgetl(vptr); 1101 int level = tgetl(vptr + n); 1102 int optname = tgetl(vptr + 2 * n); 1103 target_ulong optval = tgetl(vptr + 3 * n); 1104 target_ulong poptlen = tgetl(vptr + 4 * n); 1105 1106 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1107 } 1108 break; 1109 default: 1110 gemu_log("Unsupported socketcall: %d\n", num); 1111 ret = -ENOSYS; 1112 break; 1113 } 1114 return ret; 1115 } 1116 1117 #define N_SHM_REGIONS 32 1118 1119 static struct shm_region { 1120 uint32_t start; 1121 uint32_t size; 1122 } shm_regions[N_SHM_REGIONS]; 1123 1124 union semun { 1125 int val; 1126 struct senid_ds *buf; 1127 unsigned short *array; 1128 }; 1129 1130 /* ??? This only works with linear mappings. */ 1131 static long do_ipc(long call, long first, long second, long third, 1132 long ptr, long fifth) 1133 { 1134 int version; 1135 long ret = 0; 1136 unsigned long raddr; 1137 struct shmid_ds shm_info; 1138 int i; 1139 1140 version = call >> 16; 1141 call &= 0xffff; 1142 1143 switch (call) { 1144 case IPCOP_semop: 1145 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1146 break; 1147 1148 case IPCOP_semget: 1149 ret = get_errno(semget(first, second, third)); 1150 break; 1151 1152 case IPCOP_semctl: 1153 ret = get_errno(semctl(first, second, third, ((union semun*)ptr)->val)); 1154 1155 break; 1156 1157 case IPCOP_semtimedop: 1158 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1159 ret = -ENOSYS; 1160 break; 1161 1162 case IPCOP_msgget: 1163 ret = get_errno(msgget(first, second)); 1164 break; 1165 1166 case IPCOP_msgsnd: 1167 ret = get_errno(msgsnd(first, (struct msgbuf *) ptr, second, third)); 1168 break; 1169 1170 case IPCOP_msgctl: 1171 ret = get_errno(msgctl(first, second, (struct msqid_ds *) ptr)); 1172 break; 1173 1174 case IPCOP_msgrcv: 1175 { 1176 struct ipc_kludge 1177 { 1178 void *__unbounded msgp; 1179 long int msgtyp; 1180 }; 1181 1182 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1183 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1184 1185 ret = get_errno(msgrcv(first, msgp, second, 0, third)); 1186 1187 } 1188 break; 1189 1190 case IPCOP_shmat: 1191 /* SHM_* flags are the same on all linux platforms */ 1192 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1193 if (is_error(ret)) 1194 break; 1195 raddr = ret; 1196 /* find out the length of the shared memory segment */ 1197 1198 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1199 if (is_error(ret)) { 1200 /* can't get length, bail out */ 1201 shmdt((void *) raddr); 1202 break; 1203 } 1204 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1205 PAGE_VALID | PAGE_READ | 1206 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1207 for (i = 0; i < N_SHM_REGIONS; ++i) { 1208 if (shm_regions[i].start == 0) { 1209 shm_regions[i].start = raddr; 1210 shm_regions[i].size = shm_info.shm_segsz; 1211 break; 1212 } 1213 } 1214 if (put_user(raddr, (uint32_t *)third)) 1215 return -EFAULT; 1216 ret = 0; 1217 break; 1218 case IPCOP_shmdt: 1219 for (i = 0; i < N_SHM_REGIONS; ++i) { 1220 if (shm_regions[i].start == ptr) { 1221 shm_regions[i].start = 0; 1222 page_set_flags(ptr, shm_regions[i].size, 0); 1223 break; 1224 } 1225 } 1226 ret = get_errno(shmdt((void *) ptr)); 1227 break; 1228 1229 case IPCOP_shmget: 1230 /* IPC_* flag values are the same on all linux platforms */ 1231 ret = get_errno(shmget(first, second, third)); 1232 break; 1233 1234 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1235 case IPCOP_shmctl: 1236 switch(second) { 1237 case IPC_RMID: 1238 case SHM_LOCK: 1239 case SHM_UNLOCK: 1240 ret = get_errno(shmctl(first, second, NULL)); 1241 break; 1242 default: 1243 goto unimplemented; 1244 } 1245 break; 1246 default: 1247 unimplemented: 1248 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1249 ret = -ENOSYS; 1250 break; 1251 } 1252 return ret; 1253 } 1254 1255 /* kernel structure types definitions */ 1256 #define IFNAMSIZ 16 1257 1258 #define STRUCT(name, list...) STRUCT_ ## name, 1259 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1260 enum { 1261 #include "syscall_types.h" 1262 }; 1263 #undef STRUCT 1264 #undef STRUCT_SPECIAL 1265 1266 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1267 #define STRUCT_SPECIAL(name) 1268 #include "syscall_types.h" 1269 #undef STRUCT 1270 #undef STRUCT_SPECIAL 1271 1272 typedef struct IOCTLEntry { 1273 unsigned int target_cmd; 1274 unsigned int host_cmd; 1275 const char *name; 1276 int access; 1277 const argtype arg_type[5]; 1278 } IOCTLEntry; 1279 1280 #define IOC_R 0x0001 1281 #define IOC_W 0x0002 1282 #define IOC_RW (IOC_R | IOC_W) 1283 1284 #define MAX_STRUCT_SIZE 4096 1285 1286 IOCTLEntry ioctl_entries[] = { 1287 #define IOCTL(cmd, access, types...) \ 1288 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1289 #include "ioctls.h" 1290 { 0, 0, }, 1291 }; 1292 1293 /* ??? Implement proper locking for ioctls. */ 1294 static long do_ioctl(long fd, long cmd, long arg) 1295 { 1296 const IOCTLEntry *ie; 1297 const argtype *arg_type; 1298 long ret; 1299 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1300 int target_size; 1301 void *argptr; 1302 1303 ie = ioctl_entries; 1304 for(;;) { 1305 if (ie->target_cmd == 0) { 1306 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 1307 return -ENOSYS; 1308 } 1309 if (ie->target_cmd == cmd) 1310 break; 1311 ie++; 1312 } 1313 arg_type = ie->arg_type; 1314 #if defined(DEBUG) 1315 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 1316 #endif 1317 switch(arg_type[0]) { 1318 case TYPE_NULL: 1319 /* no argument */ 1320 ret = get_errno(ioctl(fd, ie->host_cmd)); 1321 break; 1322 case TYPE_PTRVOID: 1323 case TYPE_INT: 1324 /* int argment */ 1325 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1326 break; 1327 case TYPE_PTR: 1328 arg_type++; 1329 target_size = thunk_type_size(arg_type, 0); 1330 switch(ie->access) { 1331 case IOC_R: 1332 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1333 if (!is_error(ret)) { 1334 argptr = lock_user(arg, target_size, 0); 1335 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1336 unlock_user(argptr, arg, target_size); 1337 } 1338 break; 1339 case IOC_W: 1340 argptr = lock_user(arg, target_size, 1); 1341 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1342 unlock_user(argptr, arg, 0); 1343 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1344 break; 1345 default: 1346 case IOC_RW: 1347 argptr = lock_user(arg, target_size, 1); 1348 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1349 unlock_user(argptr, arg, 0); 1350 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1351 if (!is_error(ret)) { 1352 argptr = lock_user(arg, target_size, 0); 1353 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1354 unlock_user(argptr, arg, target_size); 1355 } 1356 break; 1357 } 1358 break; 1359 default: 1360 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 1361 ret = -ENOSYS; 1362 break; 1363 } 1364 return ret; 1365 } 1366 1367 bitmask_transtbl iflag_tbl[] = { 1368 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1369 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1370 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1371 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1372 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1373 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1374 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1375 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1376 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1377 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1378 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1379 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1380 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1381 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1382 { 0, 0, 0, 0 } 1383 }; 1384 1385 bitmask_transtbl oflag_tbl[] = { 1386 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1387 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1388 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1389 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1390 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1391 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1392 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1393 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1394 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1395 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1396 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1397 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1398 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1399 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1400 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1401 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1402 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1403 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1404 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1405 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1406 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1407 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1408 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1409 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1410 { 0, 0, 0, 0 } 1411 }; 1412 1413 bitmask_transtbl cflag_tbl[] = { 1414 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1415 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1416 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1417 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1418 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1419 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1420 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1421 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1422 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1423 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1424 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1425 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1426 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1427 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1428 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1429 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1430 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1431 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1432 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1433 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1434 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1435 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1436 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1437 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1438 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1439 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1440 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1441 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1442 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1443 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1444 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1445 { 0, 0, 0, 0 } 1446 }; 1447 1448 bitmask_transtbl lflag_tbl[] = { 1449 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1450 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1451 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1452 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1453 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1454 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1455 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1456 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1457 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1458 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1459 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1460 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1461 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1462 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1463 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1464 { 0, 0, 0, 0 } 1465 }; 1466 1467 static void target_to_host_termios (void *dst, const void *src) 1468 { 1469 struct host_termios *host = dst; 1470 const struct target_termios *target = src; 1471 1472 host->c_iflag = 1473 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 1474 host->c_oflag = 1475 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 1476 host->c_cflag = 1477 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 1478 host->c_lflag = 1479 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 1480 host->c_line = target->c_line; 1481 1482 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 1483 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 1484 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 1485 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 1486 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 1487 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 1488 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 1489 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 1490 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 1491 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 1492 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 1493 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 1494 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 1495 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 1496 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 1497 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 1498 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 1499 } 1500 1501 static void host_to_target_termios (void *dst, const void *src) 1502 { 1503 struct target_termios *target = dst; 1504 const struct host_termios *host = src; 1505 1506 target->c_iflag = 1507 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 1508 target->c_oflag = 1509 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 1510 target->c_cflag = 1511 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 1512 target->c_lflag = 1513 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 1514 target->c_line = host->c_line; 1515 1516 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 1517 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 1518 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 1519 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 1520 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 1521 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 1522 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 1523 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 1524 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 1525 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 1526 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 1527 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 1528 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 1529 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 1530 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 1531 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 1532 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 1533 } 1534 1535 StructEntry struct_termios_def = { 1536 .convert = { host_to_target_termios, target_to_host_termios }, 1537 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 1538 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 1539 }; 1540 1541 static bitmask_transtbl mmap_flags_tbl[] = { 1542 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 1543 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 1544 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 1545 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 1546 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 1547 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 1548 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 1549 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 1550 { 0, 0, 0, 0 } 1551 }; 1552 1553 static bitmask_transtbl fcntl_flags_tbl[] = { 1554 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 1555 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 1556 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 1557 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 1558 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 1559 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 1560 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 1561 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 1562 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 1563 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 1564 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 1565 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 1566 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 1567 #if defined(O_DIRECT) 1568 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 1569 #endif 1570 { 0, 0, 0, 0 } 1571 }; 1572 1573 #if defined(TARGET_I386) 1574 1575 /* NOTE: there is really one LDT for all the threads */ 1576 uint8_t *ldt_table; 1577 1578 static int read_ldt(target_ulong ptr, unsigned long bytecount) 1579 { 1580 int size; 1581 void *p; 1582 1583 if (!ldt_table) 1584 return 0; 1585 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 1586 if (size > bytecount) 1587 size = bytecount; 1588 p = lock_user(ptr, size, 0); 1589 /* ??? Shoudl this by byteswapped? */ 1590 memcpy(p, ldt_table, size); 1591 unlock_user(p, ptr, size); 1592 return size; 1593 } 1594 1595 /* XXX: add locking support */ 1596 static int write_ldt(CPUX86State *env, 1597 target_ulong ptr, unsigned long bytecount, int oldmode) 1598 { 1599 struct target_modify_ldt_ldt_s ldt_info; 1600 struct target_modify_ldt_ldt_s *target_ldt_info; 1601 int seg_32bit, contents, read_exec_only, limit_in_pages; 1602 int seg_not_present, useable; 1603 uint32_t *lp, entry_1, entry_2; 1604 1605 if (bytecount != sizeof(ldt_info)) 1606 return -EINVAL; 1607 lock_user_struct(target_ldt_info, ptr, 1); 1608 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 1609 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 1610 ldt_info.limit = tswap32(target_ldt_info->limit); 1611 ldt_info.flags = tswap32(target_ldt_info->flags); 1612 unlock_user_struct(target_ldt_info, ptr, 0); 1613 1614 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 1615 return -EINVAL; 1616 seg_32bit = ldt_info.flags & 1; 1617 contents = (ldt_info.flags >> 1) & 3; 1618 read_exec_only = (ldt_info.flags >> 3) & 1; 1619 limit_in_pages = (ldt_info.flags >> 4) & 1; 1620 seg_not_present = (ldt_info.flags >> 5) & 1; 1621 useable = (ldt_info.flags >> 6) & 1; 1622 1623 if (contents == 3) { 1624 if (oldmode) 1625 return -EINVAL; 1626 if (seg_not_present == 0) 1627 return -EINVAL; 1628 } 1629 /* allocate the LDT */ 1630 if (!ldt_table) { 1631 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1632 if (!ldt_table) 1633 return -ENOMEM; 1634 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1635 env->ldt.base = h2g(ldt_table); 1636 env->ldt.limit = 0xffff; 1637 } 1638 1639 /* NOTE: same code as Linux kernel */ 1640 /* Allow LDTs to be cleared by the user. */ 1641 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1642 if (oldmode || 1643 (contents == 0 && 1644 read_exec_only == 1 && 1645 seg_32bit == 0 && 1646 limit_in_pages == 0 && 1647 seg_not_present == 1 && 1648 useable == 0 )) { 1649 entry_1 = 0; 1650 entry_2 = 0; 1651 goto install; 1652 } 1653 } 1654 1655 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1656 (ldt_info.limit & 0x0ffff); 1657 entry_2 = (ldt_info.base_addr & 0xff000000) | 1658 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1659 (ldt_info.limit & 0xf0000) | 1660 ((read_exec_only ^ 1) << 9) | 1661 (contents << 10) | 1662 ((seg_not_present ^ 1) << 15) | 1663 (seg_32bit << 22) | 1664 (limit_in_pages << 23) | 1665 0x7000; 1666 if (!oldmode) 1667 entry_2 |= (useable << 20); 1668 1669 /* Install the new entry ... */ 1670 install: 1671 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1672 lp[0] = tswap32(entry_1); 1673 lp[1] = tswap32(entry_2); 1674 return 0; 1675 } 1676 1677 /* specific and weird i386 syscalls */ 1678 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount) 1679 { 1680 int ret = -ENOSYS; 1681 1682 switch (func) { 1683 case 0: 1684 ret = read_ldt(ptr, bytecount); 1685 break; 1686 case 1: 1687 ret = write_ldt(env, ptr, bytecount, 1); 1688 break; 1689 case 0x11: 1690 ret = write_ldt(env, ptr, bytecount, 0); 1691 break; 1692 } 1693 return ret; 1694 } 1695 1696 #endif /* defined(TARGET_I386) */ 1697 1698 /* this stack is the equivalent of the kernel stack associated with a 1699 thread/process */ 1700 #define NEW_STACK_SIZE 8192 1701 1702 static int clone_func(void *arg) 1703 { 1704 CPUState *env = arg; 1705 cpu_loop(env); 1706 /* never exits */ 1707 return 0; 1708 } 1709 1710 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 1711 { 1712 int ret; 1713 TaskState *ts; 1714 uint8_t *new_stack; 1715 CPUState *new_env; 1716 1717 if (flags & CLONE_VM) { 1718 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 1719 memset(ts, 0, sizeof(TaskState)); 1720 new_stack = ts->stack; 1721 ts->used = 1; 1722 /* add in task state list */ 1723 ts->next = first_task_state; 1724 first_task_state = ts; 1725 /* we create a new CPU instance. */ 1726 new_env = cpu_copy(env); 1727 #if defined(TARGET_I386) 1728 if (!newsp) 1729 newsp = env->regs[R_ESP]; 1730 new_env->regs[R_ESP] = newsp; 1731 new_env->regs[R_EAX] = 0; 1732 #elif defined(TARGET_ARM) 1733 if (!newsp) 1734 newsp = env->regs[13]; 1735 new_env->regs[13] = newsp; 1736 new_env->regs[0] = 0; 1737 #elif defined(TARGET_SPARC) 1738 if (!newsp) 1739 newsp = env->regwptr[22]; 1740 new_env->regwptr[22] = newsp; 1741 new_env->regwptr[0] = 0; 1742 /* XXXXX */ 1743 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 1744 #elif defined(TARGET_M68K) 1745 if (!newsp) 1746 newsp = env->aregs[7]; 1747 new_env->aregs[7] = newsp; 1748 new_env->dregs[0] = 0; 1749 /* ??? is this sufficient? */ 1750 #elif defined(TARGET_MIPS) 1751 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 1752 #elif defined(TARGET_PPC) 1753 if (!newsp) 1754 newsp = env->gpr[1]; 1755 new_env->gpr[1] = newsp; 1756 { 1757 int i; 1758 for (i = 7; i < 32; i++) 1759 new_env->gpr[i] = 0; 1760 } 1761 #elif defined(TARGET_SH4) 1762 if (!newsp) 1763 newsp = env->gregs[15]; 1764 new_env->gregs[15] = newsp; 1765 /* XXXXX */ 1766 #else 1767 #error unsupported target CPU 1768 #endif 1769 new_env->opaque = ts; 1770 #ifdef __ia64__ 1771 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1772 #else 1773 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1774 #endif 1775 } else { 1776 /* if no CLONE_VM, we consider it is a fork */ 1777 if ((flags & ~CSIGNAL) != 0) 1778 return -EINVAL; 1779 ret = fork(); 1780 } 1781 return ret; 1782 } 1783 1784 static long do_fcntl(int fd, int cmd, target_ulong arg) 1785 { 1786 struct flock fl; 1787 struct target_flock *target_fl; 1788 struct flock64 fl64; 1789 struct target_flock64 *target_fl64; 1790 long ret; 1791 1792 switch(cmd) { 1793 case TARGET_F_GETLK: 1794 ret = fcntl(fd, cmd, &fl); 1795 if (ret == 0) { 1796 lock_user_struct(target_fl, arg, 0); 1797 target_fl->l_type = tswap16(fl.l_type); 1798 target_fl->l_whence = tswap16(fl.l_whence); 1799 target_fl->l_start = tswapl(fl.l_start); 1800 target_fl->l_len = tswapl(fl.l_len); 1801 target_fl->l_pid = tswapl(fl.l_pid); 1802 unlock_user_struct(target_fl, arg, 1); 1803 } 1804 break; 1805 1806 case TARGET_F_SETLK: 1807 case TARGET_F_SETLKW: 1808 lock_user_struct(target_fl, arg, 1); 1809 fl.l_type = tswap16(target_fl->l_type); 1810 fl.l_whence = tswap16(target_fl->l_whence); 1811 fl.l_start = tswapl(target_fl->l_start); 1812 fl.l_len = tswapl(target_fl->l_len); 1813 fl.l_pid = tswapl(target_fl->l_pid); 1814 unlock_user_struct(target_fl, arg, 0); 1815 ret = fcntl(fd, cmd, &fl); 1816 break; 1817 1818 case TARGET_F_GETLK64: 1819 ret = fcntl(fd, cmd >> 1, &fl64); 1820 if (ret == 0) { 1821 lock_user_struct(target_fl64, arg, 0); 1822 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 1823 target_fl64->l_whence = tswap16(fl64.l_whence); 1824 target_fl64->l_start = tswapl(fl64.l_start); 1825 target_fl64->l_len = tswapl(fl64.l_len); 1826 target_fl64->l_pid = tswapl(fl64.l_pid); 1827 unlock_user_struct(target_fl64, arg, 1); 1828 } 1829 break; 1830 case TARGET_F_SETLK64: 1831 case TARGET_F_SETLKW64: 1832 lock_user_struct(target_fl64, arg, 1); 1833 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 1834 fl64.l_whence = tswap16(target_fl64->l_whence); 1835 fl64.l_start = tswapl(target_fl64->l_start); 1836 fl64.l_len = tswapl(target_fl64->l_len); 1837 fl64.l_pid = tswap16(target_fl64->l_pid); 1838 unlock_user_struct(target_fl64, arg, 0); 1839 ret = fcntl(fd, cmd >> 1, &fl64); 1840 break; 1841 1842 case F_GETFL: 1843 ret = fcntl(fd, cmd, arg); 1844 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 1845 break; 1846 1847 case F_SETFL: 1848 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 1849 break; 1850 1851 default: 1852 ret = fcntl(fd, cmd, arg); 1853 break; 1854 } 1855 return ret; 1856 } 1857 1858 #ifdef USE_UID16 1859 1860 static inline int high2lowuid(int uid) 1861 { 1862 if (uid > 65535) 1863 return 65534; 1864 else 1865 return uid; 1866 } 1867 1868 static inline int high2lowgid(int gid) 1869 { 1870 if (gid > 65535) 1871 return 65534; 1872 else 1873 return gid; 1874 } 1875 1876 static inline int low2highuid(int uid) 1877 { 1878 if ((int16_t)uid == -1) 1879 return -1; 1880 else 1881 return uid; 1882 } 1883 1884 static inline int low2highgid(int gid) 1885 { 1886 if ((int16_t)gid == -1) 1887 return -1; 1888 else 1889 return gid; 1890 } 1891 1892 #endif /* USE_UID16 */ 1893 1894 void syscall_init(void) 1895 { 1896 IOCTLEntry *ie; 1897 const argtype *arg_type; 1898 int size; 1899 1900 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1901 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1902 #include "syscall_types.h" 1903 #undef STRUCT 1904 #undef STRUCT_SPECIAL 1905 1906 /* we patch the ioctl size if necessary. We rely on the fact that 1907 no ioctl has all the bits at '1' in the size field */ 1908 ie = ioctl_entries; 1909 while (ie->target_cmd != 0) { 1910 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 1911 TARGET_IOC_SIZEMASK) { 1912 arg_type = ie->arg_type; 1913 if (arg_type[0] != TYPE_PTR) { 1914 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 1915 ie->target_cmd); 1916 exit(1); 1917 } 1918 arg_type++; 1919 size = thunk_type_size(arg_type, 0); 1920 ie->target_cmd = (ie->target_cmd & 1921 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 1922 (size << TARGET_IOC_SIZESHIFT); 1923 } 1924 /* automatic consistency check if same arch */ 1925 #if defined(__i386__) && defined(TARGET_I386) 1926 if (ie->target_cmd != ie->host_cmd) { 1927 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 1928 ie->target_cmd, ie->host_cmd); 1929 } 1930 #endif 1931 ie++; 1932 } 1933 } 1934 1935 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 1936 { 1937 #ifdef TARGET_WORDS_BIG_ENDIAN 1938 return ((uint64_t)word0 << 32) | word1; 1939 #else 1940 return ((uint64_t)word1 << 32) | word0; 1941 #endif 1942 } 1943 1944 #ifdef TARGET_NR_truncate64 1945 static inline long target_truncate64(void *cpu_env, const char *arg1, 1946 long arg2, long arg3, long arg4) 1947 { 1948 #ifdef TARGET_ARM 1949 if (((CPUARMState *)cpu_env)->eabi) 1950 { 1951 arg2 = arg3; 1952 arg3 = arg4; 1953 } 1954 #endif 1955 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 1956 } 1957 #endif 1958 1959 #ifdef TARGET_NR_ftruncate64 1960 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 1961 long arg3, long arg4) 1962 { 1963 #ifdef TARGET_ARM 1964 if (((CPUARMState *)cpu_env)->eabi) 1965 { 1966 arg2 = arg3; 1967 arg3 = arg4; 1968 } 1969 #endif 1970 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 1971 } 1972 #endif 1973 1974 static inline void target_to_host_timespec(struct timespec *host_ts, 1975 target_ulong target_addr) 1976 { 1977 struct target_timespec *target_ts; 1978 1979 lock_user_struct(target_ts, target_addr, 1); 1980 host_ts->tv_sec = tswapl(target_ts->tv_sec); 1981 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 1982 unlock_user_struct(target_ts, target_addr, 0); 1983 } 1984 1985 static inline void host_to_target_timespec(target_ulong target_addr, 1986 struct timespec *host_ts) 1987 { 1988 struct target_timespec *target_ts; 1989 1990 lock_user_struct(target_ts, target_addr, 0); 1991 target_ts->tv_sec = tswapl(host_ts->tv_sec); 1992 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 1993 unlock_user_struct(target_ts, target_addr, 1); 1994 } 1995 1996 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 1997 long arg4, long arg5, long arg6) 1998 { 1999 long ret; 2000 struct stat st; 2001 struct statfs stfs; 2002 void *p; 2003 2004 #ifdef DEBUG 2005 gemu_log("syscall %d", num); 2006 #endif 2007 switch(num) { 2008 case TARGET_NR_exit: 2009 #ifdef HAVE_GPROF 2010 _mcleanup(); 2011 #endif 2012 gdb_exit(cpu_env, arg1); 2013 /* XXX: should free thread stack and CPU env */ 2014 _exit(arg1); 2015 ret = 0; /* avoid warning */ 2016 break; 2017 case TARGET_NR_read: 2018 page_unprotect_range(arg2, arg3); 2019 p = lock_user(arg2, arg3, 0); 2020 ret = get_errno(read(arg1, p, arg3)); 2021 unlock_user(p, arg2, ret); 2022 break; 2023 case TARGET_NR_write: 2024 p = lock_user(arg2, arg3, 1); 2025 ret = get_errno(write(arg1, p, arg3)); 2026 unlock_user(p, arg2, 0); 2027 break; 2028 case TARGET_NR_open: 2029 p = lock_user_string(arg1); 2030 ret = get_errno(open(path(p), 2031 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2032 arg3)); 2033 unlock_user(p, arg1, 0); 2034 break; 2035 case TARGET_NR_close: 2036 ret = get_errno(close(arg1)); 2037 break; 2038 case TARGET_NR_brk: 2039 ret = do_brk(arg1); 2040 break; 2041 case TARGET_NR_fork: 2042 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2043 break; 2044 case TARGET_NR_waitpid: 2045 { 2046 int status; 2047 ret = get_errno(waitpid(arg1, &status, arg3)); 2048 if (!is_error(ret) && arg2) 2049 tput32(arg2, status); 2050 } 2051 break; 2052 case TARGET_NR_creat: 2053 p = lock_user_string(arg1); 2054 ret = get_errno(creat(p, arg2)); 2055 unlock_user(p, arg1, 0); 2056 break; 2057 case TARGET_NR_link: 2058 { 2059 void * p2; 2060 p = lock_user_string(arg1); 2061 p2 = lock_user_string(arg2); 2062 ret = get_errno(link(p, p2)); 2063 unlock_user(p2, arg2, 0); 2064 unlock_user(p, arg1, 0); 2065 } 2066 break; 2067 case TARGET_NR_unlink: 2068 p = lock_user_string(arg1); 2069 ret = get_errno(unlink(p)); 2070 unlock_user(p, arg1, 0); 2071 break; 2072 case TARGET_NR_execve: 2073 { 2074 char **argp, **envp; 2075 int argc, envc; 2076 target_ulong gp; 2077 target_ulong guest_argp; 2078 target_ulong guest_envp; 2079 target_ulong addr; 2080 char **q; 2081 2082 argc = 0; 2083 guest_argp = arg2; 2084 for (gp = guest_argp; tgetl(gp); gp++) 2085 argc++; 2086 envc = 0; 2087 guest_envp = arg3; 2088 for (gp = guest_envp; tgetl(gp); gp++) 2089 envc++; 2090 2091 argp = alloca((argc + 1) * sizeof(void *)); 2092 envp = alloca((envc + 1) * sizeof(void *)); 2093 2094 for (gp = guest_argp, q = argp; ; 2095 gp += sizeof(target_ulong), q++) { 2096 addr = tgetl(gp); 2097 if (!addr) 2098 break; 2099 *q = lock_user_string(addr); 2100 } 2101 *q = NULL; 2102 2103 for (gp = guest_envp, q = envp; ; 2104 gp += sizeof(target_ulong), q++) { 2105 addr = tgetl(gp); 2106 if (!addr) 2107 break; 2108 *q = lock_user_string(addr); 2109 } 2110 *q = NULL; 2111 2112 p = lock_user_string(arg1); 2113 ret = get_errno(execve(p, argp, envp)); 2114 unlock_user(p, arg1, 0); 2115 2116 for (gp = guest_argp, q = argp; *q; 2117 gp += sizeof(target_ulong), q++) { 2118 addr = tgetl(gp); 2119 unlock_user(*q, addr, 0); 2120 } 2121 for (gp = guest_envp, q = envp; *q; 2122 gp += sizeof(target_ulong), q++) { 2123 addr = tgetl(gp); 2124 unlock_user(*q, addr, 0); 2125 } 2126 } 2127 break; 2128 case TARGET_NR_chdir: 2129 p = lock_user_string(arg1); 2130 ret = get_errno(chdir(p)); 2131 unlock_user(p, arg1, 0); 2132 break; 2133 #ifdef TARGET_NR_time 2134 case TARGET_NR_time: 2135 { 2136 time_t host_time; 2137 ret = get_errno(time(&host_time)); 2138 if (!is_error(ret) && arg1) 2139 tputl(arg1, host_time); 2140 } 2141 break; 2142 #endif 2143 case TARGET_NR_mknod: 2144 p = lock_user_string(arg1); 2145 ret = get_errno(mknod(p, arg2, arg3)); 2146 unlock_user(p, arg1, 0); 2147 break; 2148 case TARGET_NR_chmod: 2149 p = lock_user_string(arg1); 2150 ret = get_errno(chmod(p, arg2)); 2151 unlock_user(p, arg1, 0); 2152 break; 2153 #ifdef TARGET_NR_break 2154 case TARGET_NR_break: 2155 goto unimplemented; 2156 #endif 2157 #ifdef TARGET_NR_oldstat 2158 case TARGET_NR_oldstat: 2159 goto unimplemented; 2160 #endif 2161 case TARGET_NR_lseek: 2162 ret = get_errno(lseek(arg1, arg2, arg3)); 2163 break; 2164 case TARGET_NR_getpid: 2165 ret = get_errno(getpid()); 2166 break; 2167 case TARGET_NR_mount: 2168 { 2169 /* need to look at the data field */ 2170 void *p2, *p3; 2171 p = lock_user_string(arg1); 2172 p2 = lock_user_string(arg2); 2173 p3 = lock_user_string(arg3); 2174 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2175 unlock_user(p, arg1, 0); 2176 unlock_user(p2, arg2, 0); 2177 unlock_user(p3, arg3, 0); 2178 break; 2179 } 2180 case TARGET_NR_umount: 2181 p = lock_user_string(arg1); 2182 ret = get_errno(umount(p)); 2183 unlock_user(p, arg1, 0); 2184 break; 2185 case TARGET_NR_stime: 2186 { 2187 time_t host_time; 2188 host_time = tgetl(arg1); 2189 ret = get_errno(stime(&host_time)); 2190 } 2191 break; 2192 case TARGET_NR_ptrace: 2193 goto unimplemented; 2194 case TARGET_NR_alarm: 2195 ret = alarm(arg1); 2196 break; 2197 #ifdef TARGET_NR_oldfstat 2198 case TARGET_NR_oldfstat: 2199 goto unimplemented; 2200 #endif 2201 case TARGET_NR_pause: 2202 ret = get_errno(pause()); 2203 break; 2204 case TARGET_NR_utime: 2205 { 2206 struct utimbuf tbuf, *host_tbuf; 2207 struct target_utimbuf *target_tbuf; 2208 if (arg2) { 2209 lock_user_struct(target_tbuf, arg2, 1); 2210 tbuf.actime = tswapl(target_tbuf->actime); 2211 tbuf.modtime = tswapl(target_tbuf->modtime); 2212 unlock_user_struct(target_tbuf, arg2, 0); 2213 host_tbuf = &tbuf; 2214 } else { 2215 host_tbuf = NULL; 2216 } 2217 p = lock_user_string(arg1); 2218 ret = get_errno(utime(p, host_tbuf)); 2219 unlock_user(p, arg1, 0); 2220 } 2221 break; 2222 case TARGET_NR_utimes: 2223 { 2224 struct timeval *tvp, tv[2]; 2225 if (arg2) { 2226 target_to_host_timeval(&tv[0], arg2); 2227 target_to_host_timeval(&tv[1], 2228 arg2 + sizeof (struct target_timeval)); 2229 tvp = tv; 2230 } else { 2231 tvp = NULL; 2232 } 2233 p = lock_user_string(arg1); 2234 ret = get_errno(utimes(p, tvp)); 2235 unlock_user(p, arg1, 0); 2236 } 2237 break; 2238 #ifdef TARGET_NR_stty 2239 case TARGET_NR_stty: 2240 goto unimplemented; 2241 #endif 2242 #ifdef TARGET_NR_gtty 2243 case TARGET_NR_gtty: 2244 goto unimplemented; 2245 #endif 2246 case TARGET_NR_access: 2247 p = lock_user_string(arg1); 2248 ret = get_errno(access(p, arg2)); 2249 unlock_user(p, arg1, 0); 2250 break; 2251 case TARGET_NR_nice: 2252 ret = get_errno(nice(arg1)); 2253 break; 2254 #ifdef TARGET_NR_ftime 2255 case TARGET_NR_ftime: 2256 goto unimplemented; 2257 #endif 2258 case TARGET_NR_sync: 2259 sync(); 2260 ret = 0; 2261 break; 2262 case TARGET_NR_kill: 2263 ret = get_errno(kill(arg1, arg2)); 2264 break; 2265 case TARGET_NR_rename: 2266 { 2267 void *p2; 2268 p = lock_user_string(arg1); 2269 p2 = lock_user_string(arg2); 2270 ret = get_errno(rename(p, p2)); 2271 unlock_user(p2, arg2, 0); 2272 unlock_user(p, arg1, 0); 2273 } 2274 break; 2275 case TARGET_NR_mkdir: 2276 p = lock_user_string(arg1); 2277 ret = get_errno(mkdir(p, arg2)); 2278 unlock_user(p, arg1, 0); 2279 break; 2280 case TARGET_NR_rmdir: 2281 p = lock_user_string(arg1); 2282 ret = get_errno(rmdir(p)); 2283 unlock_user(p, arg1, 0); 2284 break; 2285 case TARGET_NR_dup: 2286 ret = get_errno(dup(arg1)); 2287 break; 2288 case TARGET_NR_pipe: 2289 { 2290 int host_pipe[2]; 2291 ret = get_errno(pipe(host_pipe)); 2292 if (!is_error(ret)) { 2293 tput32(arg1, host_pipe[0]); 2294 tput32(arg1 + 4, host_pipe[1]); 2295 } 2296 } 2297 break; 2298 case TARGET_NR_times: 2299 { 2300 struct target_tms *tmsp; 2301 struct tms tms; 2302 ret = get_errno(times(&tms)); 2303 if (arg1) { 2304 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2305 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2306 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2307 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2308 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2309 } 2310 if (!is_error(ret)) 2311 ret = host_to_target_clock_t(ret); 2312 } 2313 break; 2314 #ifdef TARGET_NR_prof 2315 case TARGET_NR_prof: 2316 goto unimplemented; 2317 #endif 2318 case TARGET_NR_signal: 2319 goto unimplemented; 2320 2321 case TARGET_NR_acct: 2322 p = lock_user_string(arg1); 2323 ret = get_errno(acct(path(p))); 2324 unlock_user(p, arg1, 0); 2325 break; 2326 case TARGET_NR_umount2: 2327 p = lock_user_string(arg1); 2328 ret = get_errno(umount2(p, arg2)); 2329 unlock_user(p, arg1, 0); 2330 break; 2331 #ifdef TARGET_NR_lock 2332 case TARGET_NR_lock: 2333 goto unimplemented; 2334 #endif 2335 case TARGET_NR_ioctl: 2336 ret = do_ioctl(arg1, arg2, arg3); 2337 break; 2338 case TARGET_NR_fcntl: 2339 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2340 break; 2341 #ifdef TARGET_NR_mpx 2342 case TARGET_NR_mpx: 2343 goto unimplemented; 2344 #endif 2345 case TARGET_NR_setpgid: 2346 ret = get_errno(setpgid(arg1, arg2)); 2347 break; 2348 #ifdef TARGET_NR_ulimit 2349 case TARGET_NR_ulimit: 2350 goto unimplemented; 2351 #endif 2352 #ifdef TARGET_NR_oldolduname 2353 case TARGET_NR_oldolduname: 2354 goto unimplemented; 2355 #endif 2356 case TARGET_NR_umask: 2357 ret = get_errno(umask(arg1)); 2358 break; 2359 case TARGET_NR_chroot: 2360 p = lock_user_string(arg1); 2361 ret = get_errno(chroot(p)); 2362 unlock_user(p, arg1, 0); 2363 break; 2364 case TARGET_NR_ustat: 2365 goto unimplemented; 2366 case TARGET_NR_dup2: 2367 ret = get_errno(dup2(arg1, arg2)); 2368 break; 2369 case TARGET_NR_getppid: 2370 ret = get_errno(getppid()); 2371 break; 2372 case TARGET_NR_getpgrp: 2373 ret = get_errno(getpgrp()); 2374 break; 2375 case TARGET_NR_setsid: 2376 ret = get_errno(setsid()); 2377 break; 2378 case TARGET_NR_sigaction: 2379 { 2380 #if !defined(TARGET_MIPS) 2381 struct target_old_sigaction *old_act; 2382 struct target_sigaction act, oact, *pact; 2383 if (arg2) { 2384 lock_user_struct(old_act, arg2, 1); 2385 act._sa_handler = old_act->_sa_handler; 2386 target_siginitset(&act.sa_mask, old_act->sa_mask); 2387 act.sa_flags = old_act->sa_flags; 2388 act.sa_restorer = old_act->sa_restorer; 2389 unlock_user_struct(old_act, arg2, 0); 2390 pact = &act; 2391 } else { 2392 pact = NULL; 2393 } 2394 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2395 if (!is_error(ret) && arg3) { 2396 lock_user_struct(old_act, arg3, 0); 2397 old_act->_sa_handler = oact._sa_handler; 2398 old_act->sa_mask = oact.sa_mask.sig[0]; 2399 old_act->sa_flags = oact.sa_flags; 2400 old_act->sa_restorer = oact.sa_restorer; 2401 unlock_user_struct(old_act, arg3, 1); 2402 } 2403 #else 2404 struct target_sigaction act, oact, *pact, *old_act; 2405 2406 if (arg2) { 2407 lock_user_struct(old_act, arg2, 1); 2408 act._sa_handler = old_act->_sa_handler; 2409 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2410 act.sa_flags = old_act->sa_flags; 2411 unlock_user_struct(old_act, arg2, 0); 2412 pact = &act; 2413 } else { 2414 pact = NULL; 2415 } 2416 2417 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2418 2419 if (!is_error(ret) && arg3) { 2420 lock_user_struct(old_act, arg3, 0); 2421 old_act->_sa_handler = oact._sa_handler; 2422 old_act->sa_flags = oact.sa_flags; 2423 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 2424 old_act->sa_mask.sig[1] = 0; 2425 old_act->sa_mask.sig[2] = 0; 2426 old_act->sa_mask.sig[3] = 0; 2427 unlock_user_struct(old_act, arg3, 1); 2428 } 2429 #endif 2430 } 2431 break; 2432 case TARGET_NR_rt_sigaction: 2433 { 2434 struct target_sigaction *act; 2435 struct target_sigaction *oact; 2436 2437 if (arg2) 2438 lock_user_struct(act, arg2, 1); 2439 else 2440 act = NULL; 2441 if (arg3) 2442 lock_user_struct(oact, arg3, 0); 2443 else 2444 oact = NULL; 2445 ret = get_errno(do_sigaction(arg1, act, oact)); 2446 if (arg2) 2447 unlock_user_struct(act, arg2, 0); 2448 if (arg3) 2449 unlock_user_struct(oact, arg3, 1); 2450 } 2451 break; 2452 case TARGET_NR_sgetmask: 2453 { 2454 sigset_t cur_set; 2455 target_ulong target_set; 2456 sigprocmask(0, NULL, &cur_set); 2457 host_to_target_old_sigset(&target_set, &cur_set); 2458 ret = target_set; 2459 } 2460 break; 2461 case TARGET_NR_ssetmask: 2462 { 2463 sigset_t set, oset, cur_set; 2464 target_ulong target_set = arg1; 2465 sigprocmask(0, NULL, &cur_set); 2466 target_to_host_old_sigset(&set, &target_set); 2467 sigorset(&set, &set, &cur_set); 2468 sigprocmask(SIG_SETMASK, &set, &oset); 2469 host_to_target_old_sigset(&target_set, &oset); 2470 ret = target_set; 2471 } 2472 break; 2473 case TARGET_NR_sigprocmask: 2474 { 2475 int how = arg1; 2476 sigset_t set, oldset, *set_ptr; 2477 2478 if (arg2) { 2479 switch(how) { 2480 case TARGET_SIG_BLOCK: 2481 how = SIG_BLOCK; 2482 break; 2483 case TARGET_SIG_UNBLOCK: 2484 how = SIG_UNBLOCK; 2485 break; 2486 case TARGET_SIG_SETMASK: 2487 how = SIG_SETMASK; 2488 break; 2489 default: 2490 ret = -EINVAL; 2491 goto fail; 2492 } 2493 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2494 target_to_host_old_sigset(&set, p); 2495 unlock_user(p, arg2, 0); 2496 set_ptr = &set; 2497 } else { 2498 how = 0; 2499 set_ptr = NULL; 2500 } 2501 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 2502 if (!is_error(ret) && arg3) { 2503 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2504 host_to_target_old_sigset(p, &oldset); 2505 unlock_user(p, arg3, sizeof(target_sigset_t)); 2506 } 2507 } 2508 break; 2509 case TARGET_NR_rt_sigprocmask: 2510 { 2511 int how = arg1; 2512 sigset_t set, oldset, *set_ptr; 2513 2514 if (arg2) { 2515 switch(how) { 2516 case TARGET_SIG_BLOCK: 2517 how = SIG_BLOCK; 2518 break; 2519 case TARGET_SIG_UNBLOCK: 2520 how = SIG_UNBLOCK; 2521 break; 2522 case TARGET_SIG_SETMASK: 2523 how = SIG_SETMASK; 2524 break; 2525 default: 2526 ret = -EINVAL; 2527 goto fail; 2528 } 2529 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2530 target_to_host_sigset(&set, p); 2531 unlock_user(p, arg2, 0); 2532 set_ptr = &set; 2533 } else { 2534 how = 0; 2535 set_ptr = NULL; 2536 } 2537 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 2538 if (!is_error(ret) && arg3) { 2539 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2540 host_to_target_sigset(p, &oldset); 2541 unlock_user(p, arg3, sizeof(target_sigset_t)); 2542 } 2543 } 2544 break; 2545 case TARGET_NR_sigpending: 2546 { 2547 sigset_t set; 2548 ret = get_errno(sigpending(&set)); 2549 if (!is_error(ret)) { 2550 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2551 host_to_target_old_sigset(p, &set); 2552 unlock_user(p, arg1, sizeof(target_sigset_t)); 2553 } 2554 } 2555 break; 2556 case TARGET_NR_rt_sigpending: 2557 { 2558 sigset_t set; 2559 ret = get_errno(sigpending(&set)); 2560 if (!is_error(ret)) { 2561 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2562 host_to_target_sigset(p, &set); 2563 unlock_user(p, arg1, sizeof(target_sigset_t)); 2564 } 2565 } 2566 break; 2567 case TARGET_NR_sigsuspend: 2568 { 2569 sigset_t set; 2570 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2571 target_to_host_old_sigset(&set, p); 2572 unlock_user(p, arg1, 0); 2573 ret = get_errno(sigsuspend(&set)); 2574 } 2575 break; 2576 case TARGET_NR_rt_sigsuspend: 2577 { 2578 sigset_t set; 2579 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2580 target_to_host_sigset(&set, p); 2581 unlock_user(p, arg1, 0); 2582 ret = get_errno(sigsuspend(&set)); 2583 } 2584 break; 2585 case TARGET_NR_rt_sigtimedwait: 2586 { 2587 sigset_t set; 2588 struct timespec uts, *puts; 2589 siginfo_t uinfo; 2590 2591 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2592 target_to_host_sigset(&set, p); 2593 unlock_user(p, arg1, 0); 2594 if (arg3) { 2595 puts = &uts; 2596 target_to_host_timespec(puts, arg3); 2597 } else { 2598 puts = NULL; 2599 } 2600 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 2601 if (!is_error(ret) && arg2) { 2602 p = lock_user(arg2, sizeof(target_sigset_t), 0); 2603 host_to_target_siginfo(p, &uinfo); 2604 unlock_user(p, arg2, sizeof(target_sigset_t)); 2605 } 2606 } 2607 break; 2608 case TARGET_NR_rt_sigqueueinfo: 2609 { 2610 siginfo_t uinfo; 2611 p = lock_user(arg3, sizeof(target_sigset_t), 1); 2612 target_to_host_siginfo(&uinfo, p); 2613 unlock_user(p, arg1, 0); 2614 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 2615 } 2616 break; 2617 case TARGET_NR_sigreturn: 2618 /* NOTE: ret is eax, so not transcoding must be done */ 2619 ret = do_sigreturn(cpu_env); 2620 break; 2621 case TARGET_NR_rt_sigreturn: 2622 /* NOTE: ret is eax, so not transcoding must be done */ 2623 ret = do_rt_sigreturn(cpu_env); 2624 break; 2625 case TARGET_NR_sethostname: 2626 p = lock_user_string(arg1); 2627 ret = get_errno(sethostname(p, arg2)); 2628 unlock_user(p, arg1, 0); 2629 break; 2630 case TARGET_NR_setrlimit: 2631 { 2632 /* XXX: convert resource ? */ 2633 int resource = arg1; 2634 struct target_rlimit *target_rlim; 2635 struct rlimit rlim; 2636 lock_user_struct(target_rlim, arg2, 1); 2637 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2638 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2639 unlock_user_struct(target_rlim, arg2, 0); 2640 ret = get_errno(setrlimit(resource, &rlim)); 2641 } 2642 break; 2643 case TARGET_NR_getrlimit: 2644 { 2645 /* XXX: convert resource ? */ 2646 int resource = arg1; 2647 struct target_rlimit *target_rlim; 2648 struct rlimit rlim; 2649 2650 ret = get_errno(getrlimit(resource, &rlim)); 2651 if (!is_error(ret)) { 2652 lock_user_struct(target_rlim, arg2, 0); 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, 1); 2656 } 2657 } 2658 break; 2659 case TARGET_NR_getrusage: 2660 { 2661 struct rusage rusage; 2662 ret = get_errno(getrusage(arg1, &rusage)); 2663 if (!is_error(ret)) { 2664 host_to_target_rusage(arg2, &rusage); 2665 } 2666 } 2667 break; 2668 case TARGET_NR_gettimeofday: 2669 { 2670 struct timeval tv; 2671 ret = get_errno(gettimeofday(&tv, NULL)); 2672 if (!is_error(ret)) { 2673 host_to_target_timeval(arg1, &tv); 2674 } 2675 } 2676 break; 2677 case TARGET_NR_settimeofday: 2678 { 2679 struct timeval tv; 2680 target_to_host_timeval(&tv, arg1); 2681 ret = get_errno(settimeofday(&tv, NULL)); 2682 } 2683 break; 2684 #ifdef TARGET_NR_select 2685 case TARGET_NR_select: 2686 { 2687 struct target_sel_arg_struct *sel; 2688 target_ulong inp, outp, exp, tvp; 2689 long nsel; 2690 2691 lock_user_struct(sel, arg1, 1); 2692 nsel = tswapl(sel->n); 2693 inp = tswapl(sel->inp); 2694 outp = tswapl(sel->outp); 2695 exp = tswapl(sel->exp); 2696 tvp = tswapl(sel->tvp); 2697 unlock_user_struct(sel, arg1, 0); 2698 ret = do_select(nsel, inp, outp, exp, tvp); 2699 } 2700 break; 2701 #endif 2702 case TARGET_NR_symlink: 2703 { 2704 void *p2; 2705 p = lock_user_string(arg1); 2706 p2 = lock_user_string(arg2); 2707 ret = get_errno(symlink(p, p2)); 2708 unlock_user(p2, arg2, 0); 2709 unlock_user(p, arg1, 0); 2710 } 2711 break; 2712 #ifdef TARGET_NR_oldlstat 2713 case TARGET_NR_oldlstat: 2714 goto unimplemented; 2715 #endif 2716 case TARGET_NR_readlink: 2717 { 2718 void *p2; 2719 p = lock_user_string(arg1); 2720 p2 = lock_user(arg2, arg3, 0); 2721 ret = get_errno(readlink(path(p), p2, arg3)); 2722 unlock_user(p2, arg2, ret); 2723 unlock_user(p, arg1, 0); 2724 } 2725 break; 2726 case TARGET_NR_uselib: 2727 goto unimplemented; 2728 case TARGET_NR_swapon: 2729 p = lock_user_string(arg1); 2730 ret = get_errno(swapon(p, arg2)); 2731 unlock_user(p, arg1, 0); 2732 break; 2733 case TARGET_NR_reboot: 2734 goto unimplemented; 2735 case TARGET_NR_readdir: 2736 goto unimplemented; 2737 case TARGET_NR_mmap: 2738 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 2739 { 2740 target_ulong *v; 2741 target_ulong v1, v2, v3, v4, v5, v6; 2742 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 2743 v1 = tswapl(v[0]); 2744 v2 = tswapl(v[1]); 2745 v3 = tswapl(v[2]); 2746 v4 = tswapl(v[3]); 2747 v5 = tswapl(v[4]); 2748 v6 = tswapl(v[5]); 2749 unlock_user(v, arg1, 0); 2750 ret = get_errno(target_mmap(v1, v2, v3, 2751 target_to_host_bitmask(v4, mmap_flags_tbl), 2752 v5, v6)); 2753 } 2754 #else 2755 ret = get_errno(target_mmap(arg1, arg2, arg3, 2756 target_to_host_bitmask(arg4, mmap_flags_tbl), 2757 arg5, 2758 arg6)); 2759 #endif 2760 break; 2761 #ifdef TARGET_NR_mmap2 2762 case TARGET_NR_mmap2: 2763 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 2764 #define MMAP_SHIFT 12 2765 #else 2766 #define MMAP_SHIFT TARGET_PAGE_BITS 2767 #endif 2768 ret = get_errno(target_mmap(arg1, arg2, arg3, 2769 target_to_host_bitmask(arg4, mmap_flags_tbl), 2770 arg5, 2771 arg6 << MMAP_SHIFT)); 2772 break; 2773 #endif 2774 case TARGET_NR_munmap: 2775 ret = get_errno(target_munmap(arg1, arg2)); 2776 break; 2777 case TARGET_NR_mprotect: 2778 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 2779 break; 2780 case TARGET_NR_mremap: 2781 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 2782 break; 2783 /* ??? msync/mlock/munlock are broken for softmmu. */ 2784 case TARGET_NR_msync: 2785 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 2786 break; 2787 case TARGET_NR_mlock: 2788 ret = get_errno(mlock(g2h(arg1), arg2)); 2789 break; 2790 case TARGET_NR_munlock: 2791 ret = get_errno(munlock(g2h(arg1), arg2)); 2792 break; 2793 case TARGET_NR_mlockall: 2794 ret = get_errno(mlockall(arg1)); 2795 break; 2796 case TARGET_NR_munlockall: 2797 ret = get_errno(munlockall()); 2798 break; 2799 case TARGET_NR_truncate: 2800 p = lock_user_string(arg1); 2801 ret = get_errno(truncate(p, arg2)); 2802 unlock_user(p, arg1, 0); 2803 break; 2804 case TARGET_NR_ftruncate: 2805 ret = get_errno(ftruncate(arg1, arg2)); 2806 break; 2807 case TARGET_NR_fchmod: 2808 ret = get_errno(fchmod(arg1, arg2)); 2809 break; 2810 case TARGET_NR_getpriority: 2811 ret = get_errno(getpriority(arg1, arg2)); 2812 break; 2813 case TARGET_NR_setpriority: 2814 ret = get_errno(setpriority(arg1, arg2, arg3)); 2815 break; 2816 #ifdef TARGET_NR_profil 2817 case TARGET_NR_profil: 2818 goto unimplemented; 2819 #endif 2820 case TARGET_NR_statfs: 2821 p = lock_user_string(arg1); 2822 ret = get_errno(statfs(path(p), &stfs)); 2823 unlock_user(p, arg1, 0); 2824 convert_statfs: 2825 if (!is_error(ret)) { 2826 struct target_statfs *target_stfs; 2827 2828 lock_user_struct(target_stfs, arg2, 0); 2829 /* ??? put_user is probably wrong. */ 2830 put_user(stfs.f_type, &target_stfs->f_type); 2831 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2832 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2833 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2834 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2835 put_user(stfs.f_files, &target_stfs->f_files); 2836 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2837 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2838 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2839 unlock_user_struct(target_stfs, arg2, 1); 2840 } 2841 break; 2842 case TARGET_NR_fstatfs: 2843 ret = get_errno(fstatfs(arg1, &stfs)); 2844 goto convert_statfs; 2845 #ifdef TARGET_NR_statfs64 2846 case TARGET_NR_statfs64: 2847 p = lock_user_string(arg1); 2848 ret = get_errno(statfs(path(p), &stfs)); 2849 unlock_user(p, arg1, 0); 2850 convert_statfs64: 2851 if (!is_error(ret)) { 2852 struct target_statfs64 *target_stfs; 2853 2854 lock_user_struct(target_stfs, arg3, 0); 2855 /* ??? put_user is probably wrong. */ 2856 put_user(stfs.f_type, &target_stfs->f_type); 2857 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2858 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2859 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2860 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2861 put_user(stfs.f_files, &target_stfs->f_files); 2862 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2863 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2864 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2865 unlock_user_struct(target_stfs, arg3, 0); 2866 } 2867 break; 2868 case TARGET_NR_fstatfs64: 2869 ret = get_errno(fstatfs(arg1, &stfs)); 2870 goto convert_statfs64; 2871 #endif 2872 #ifdef TARGET_NR_ioperm 2873 case TARGET_NR_ioperm: 2874 goto unimplemented; 2875 #endif 2876 case TARGET_NR_socketcall: 2877 ret = do_socketcall(arg1, arg2); 2878 break; 2879 2880 #ifdef TARGET_NR_accept 2881 case TARGET_NR_accept: 2882 ret = do_accept(arg1, arg2, arg3); 2883 break; 2884 #endif 2885 #ifdef TARGET_NR_bind 2886 case TARGET_NR_bind: 2887 ret = do_bind(arg1, arg2, arg3); 2888 break; 2889 #endif 2890 #ifdef TARGET_NR_connect 2891 case TARGET_NR_connect: 2892 ret = do_connect(arg1, arg2, arg3); 2893 break; 2894 #endif 2895 #ifdef TARGET_NR_getpeername 2896 case TARGET_NR_getpeername: 2897 ret = do_getpeername(arg1, arg2, arg3); 2898 break; 2899 #endif 2900 #ifdef TARGET_NR_getsockname 2901 case TARGET_NR_getsockname: 2902 ret = do_getsockname(arg1, arg2, arg3); 2903 break; 2904 #endif 2905 #ifdef TARGET_NR_getsockopt 2906 case TARGET_NR_getsockopt: 2907 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 2908 break; 2909 #endif 2910 #ifdef TARGET_NR_listen 2911 case TARGET_NR_listen: 2912 ret = get_errno(listen(arg1, arg2)); 2913 break; 2914 #endif 2915 #ifdef TARGET_NR_recv 2916 case TARGET_NR_recv: 2917 ret = do_recvfrom(arg1, arg1, arg3, arg4, 0, 0); 2918 break; 2919 #endif 2920 #ifdef TARGET_NR_recvfrom 2921 case TARGET_NR_recvfrom: 2922 ret = do_recvfrom(arg1, arg1, arg3, arg4, arg5, arg6); 2923 break; 2924 #endif 2925 #ifdef TARGET_NR_recvmsg 2926 case TARGET_NR_recvmsg: 2927 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 2928 break; 2929 #endif 2930 #ifdef TARGET_NR_send 2931 case TARGET_NR_send: 2932 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 2933 break; 2934 #endif 2935 #ifdef TARGET_NR_sendmsg 2936 case TARGET_NR_sendmsg: 2937 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 2938 break; 2939 #endif 2940 #ifdef TARGET_NR_sendto 2941 case TARGET_NR_sendto: 2942 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 2943 break; 2944 #endif 2945 #ifdef TARGET_NR_shutdown 2946 case TARGET_NR_shutdown: 2947 ret = get_errno(shutdown(arg1, arg2)); 2948 break; 2949 #endif 2950 #ifdef TARGET_NR_socket 2951 case TARGET_NR_socket: 2952 ret = do_socket(arg1, arg2, arg3); 2953 break; 2954 #endif 2955 #ifdef TARGET_NR_socketpair 2956 case TARGET_NR_socketpair: 2957 ret = do_socketpair(arg1, arg2, arg3, arg4); 2958 break; 2959 #endif 2960 #ifdef TARGET_NR_setsockopt 2961 case TARGET_NR_setsockopt: 2962 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 2963 break; 2964 #endif 2965 2966 case TARGET_NR_syslog: 2967 p = lock_user_string(arg2); 2968 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 2969 unlock_user(p, arg2, 0); 2970 break; 2971 2972 case TARGET_NR_setitimer: 2973 { 2974 struct itimerval value, ovalue, *pvalue; 2975 2976 if (arg2) { 2977 pvalue = &value; 2978 target_to_host_timeval(&pvalue->it_interval, 2979 arg2); 2980 target_to_host_timeval(&pvalue->it_value, 2981 arg2 + sizeof(struct target_timeval)); 2982 } else { 2983 pvalue = NULL; 2984 } 2985 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 2986 if (!is_error(ret) && arg3) { 2987 host_to_target_timeval(arg3, 2988 &ovalue.it_interval); 2989 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 2990 &ovalue.it_value); 2991 } 2992 } 2993 break; 2994 case TARGET_NR_getitimer: 2995 { 2996 struct itimerval value; 2997 2998 ret = get_errno(getitimer(arg1, &value)); 2999 if (!is_error(ret) && arg2) { 3000 host_to_target_timeval(arg2, 3001 &value.it_interval); 3002 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3003 &value.it_value); 3004 } 3005 } 3006 break; 3007 case TARGET_NR_stat: 3008 p = lock_user_string(arg1); 3009 ret = get_errno(stat(path(p), &st)); 3010 unlock_user(p, arg1, 0); 3011 goto do_stat; 3012 case TARGET_NR_lstat: 3013 p = lock_user_string(arg1); 3014 ret = get_errno(lstat(path(p), &st)); 3015 unlock_user(p, arg1, 0); 3016 goto do_stat; 3017 case TARGET_NR_fstat: 3018 { 3019 ret = get_errno(fstat(arg1, &st)); 3020 do_stat: 3021 if (!is_error(ret)) { 3022 struct target_stat *target_st; 3023 3024 lock_user_struct(target_st, arg2, 0); 3025 target_st->st_dev = tswap16(st.st_dev); 3026 target_st->st_ino = tswapl(st.st_ino); 3027 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3028 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3029 target_st->st_uid = tswap32(st.st_uid); 3030 target_st->st_gid = tswap32(st.st_gid); 3031 #else 3032 target_st->st_mode = tswap16(st.st_mode); 3033 target_st->st_uid = tswap16(st.st_uid); 3034 target_st->st_gid = tswap16(st.st_gid); 3035 #endif 3036 target_st->st_nlink = tswap16(st.st_nlink); 3037 target_st->st_rdev = tswap16(st.st_rdev); 3038 target_st->st_size = tswapl(st.st_size); 3039 target_st->st_blksize = tswapl(st.st_blksize); 3040 target_st->st_blocks = tswapl(st.st_blocks); 3041 target_st->target_st_atime = tswapl(st.st_atime); 3042 target_st->target_st_mtime = tswapl(st.st_mtime); 3043 target_st->target_st_ctime = tswapl(st.st_ctime); 3044 unlock_user_struct(target_st, arg2, 1); 3045 } 3046 } 3047 break; 3048 #ifdef TARGET_NR_olduname 3049 case TARGET_NR_olduname: 3050 goto unimplemented; 3051 #endif 3052 #ifdef TARGET_NR_iopl 3053 case TARGET_NR_iopl: 3054 goto unimplemented; 3055 #endif 3056 case TARGET_NR_vhangup: 3057 ret = get_errno(vhangup()); 3058 break; 3059 #ifdef TARGET_NR_idle 3060 case TARGET_NR_idle: 3061 goto unimplemented; 3062 #endif 3063 #ifdef TARGET_NR_syscall 3064 case TARGET_NR_syscall: 3065 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3066 break; 3067 #endif 3068 case TARGET_NR_wait4: 3069 { 3070 int status; 3071 target_long status_ptr = arg2; 3072 struct rusage rusage, *rusage_ptr; 3073 target_ulong target_rusage = arg4; 3074 if (target_rusage) 3075 rusage_ptr = &rusage; 3076 else 3077 rusage_ptr = NULL; 3078 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3079 if (!is_error(ret)) { 3080 if (status_ptr) 3081 tputl(status_ptr, status); 3082 if (target_rusage) { 3083 host_to_target_rusage(target_rusage, &rusage); 3084 } 3085 } 3086 } 3087 break; 3088 case TARGET_NR_swapoff: 3089 p = lock_user_string(arg1); 3090 ret = get_errno(swapoff(p)); 3091 unlock_user(p, arg1, 0); 3092 break; 3093 case TARGET_NR_sysinfo: 3094 { 3095 struct target_sysinfo *target_value; 3096 struct sysinfo value; 3097 ret = get_errno(sysinfo(&value)); 3098 if (!is_error(ret) && arg1) 3099 { 3100 /* ??? __put_user is probably wrong. */ 3101 lock_user_struct(target_value, arg1, 0); 3102 __put_user(value.uptime, &target_value->uptime); 3103 __put_user(value.loads[0], &target_value->loads[0]); 3104 __put_user(value.loads[1], &target_value->loads[1]); 3105 __put_user(value.loads[2], &target_value->loads[2]); 3106 __put_user(value.totalram, &target_value->totalram); 3107 __put_user(value.freeram, &target_value->freeram); 3108 __put_user(value.sharedram, &target_value->sharedram); 3109 __put_user(value.bufferram, &target_value->bufferram); 3110 __put_user(value.totalswap, &target_value->totalswap); 3111 __put_user(value.freeswap, &target_value->freeswap); 3112 __put_user(value.procs, &target_value->procs); 3113 __put_user(value.totalhigh, &target_value->totalhigh); 3114 __put_user(value.freehigh, &target_value->freehigh); 3115 __put_user(value.mem_unit, &target_value->mem_unit); 3116 unlock_user_struct(target_value, arg1, 1); 3117 } 3118 } 3119 break; 3120 case TARGET_NR_ipc: 3121 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3122 break; 3123 case TARGET_NR_fsync: 3124 ret = get_errno(fsync(arg1)); 3125 break; 3126 case TARGET_NR_clone: 3127 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3128 break; 3129 #ifdef __NR_exit_group 3130 /* new thread calls */ 3131 case TARGET_NR_exit_group: 3132 gdb_exit(cpu_env, arg1); 3133 ret = get_errno(exit_group(arg1)); 3134 break; 3135 #endif 3136 case TARGET_NR_setdomainname: 3137 p = lock_user_string(arg1); 3138 ret = get_errno(setdomainname(p, arg2)); 3139 unlock_user(p, arg1, 0); 3140 break; 3141 case TARGET_NR_uname: 3142 /* no need to transcode because we use the linux syscall */ 3143 { 3144 struct new_utsname * buf; 3145 3146 lock_user_struct(buf, arg1, 0); 3147 ret = get_errno(sys_uname(buf)); 3148 if (!is_error(ret)) { 3149 /* Overrite the native machine name with whatever is being 3150 emulated. */ 3151 strcpy (buf->machine, UNAME_MACHINE); 3152 /* Allow the user to override the reported release. */ 3153 if (qemu_uname_release && *qemu_uname_release) 3154 strcpy (buf->release, qemu_uname_release); 3155 } 3156 unlock_user_struct(buf, arg1, 1); 3157 } 3158 break; 3159 #ifdef TARGET_I386 3160 case TARGET_NR_modify_ldt: 3161 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3162 break; 3163 case TARGET_NR_vm86old: 3164 goto unimplemented; 3165 case TARGET_NR_vm86: 3166 ret = do_vm86(cpu_env, arg1, arg2); 3167 break; 3168 #endif 3169 case TARGET_NR_adjtimex: 3170 goto unimplemented; 3171 case TARGET_NR_create_module: 3172 case TARGET_NR_init_module: 3173 case TARGET_NR_delete_module: 3174 case TARGET_NR_get_kernel_syms: 3175 goto unimplemented; 3176 case TARGET_NR_quotactl: 3177 goto unimplemented; 3178 case TARGET_NR_getpgid: 3179 ret = get_errno(getpgid(arg1)); 3180 break; 3181 case TARGET_NR_fchdir: 3182 ret = get_errno(fchdir(arg1)); 3183 break; 3184 case TARGET_NR_bdflush: 3185 goto unimplemented; 3186 case TARGET_NR_sysfs: 3187 goto unimplemented; 3188 case TARGET_NR_personality: 3189 ret = get_errno(personality(arg1)); 3190 break; 3191 case TARGET_NR_afs_syscall: 3192 goto unimplemented; 3193 case TARGET_NR__llseek: 3194 { 3195 #if defined (__x86_64__) 3196 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3197 tput64(arg4, ret); 3198 #else 3199 int64_t res; 3200 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3201 tput64(arg4, res); 3202 #endif 3203 } 3204 break; 3205 case TARGET_NR_getdents: 3206 #if TARGET_LONG_SIZE != 4 3207 goto unimplemented; 3208 #warning not supported 3209 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3210 { 3211 struct target_dirent *target_dirp; 3212 struct dirent *dirp; 3213 long count = arg3; 3214 3215 dirp = malloc(count); 3216 if (!dirp) 3217 return -ENOMEM; 3218 3219 ret = get_errno(sys_getdents(arg1, dirp, count)); 3220 if (!is_error(ret)) { 3221 struct dirent *de; 3222 struct target_dirent *tde; 3223 int len = ret; 3224 int reclen, treclen; 3225 int count1, tnamelen; 3226 3227 count1 = 0; 3228 de = dirp; 3229 target_dirp = lock_user(arg2, count, 0); 3230 tde = target_dirp; 3231 while (len > 0) { 3232 reclen = de->d_reclen; 3233 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3234 tde->d_reclen = tswap16(treclen); 3235 tde->d_ino = tswapl(de->d_ino); 3236 tde->d_off = tswapl(de->d_off); 3237 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3238 if (tnamelen > 256) 3239 tnamelen = 256; 3240 /* XXX: may not be correct */ 3241 strncpy(tde->d_name, de->d_name, tnamelen); 3242 de = (struct dirent *)((char *)de + reclen); 3243 len -= reclen; 3244 tde = (struct dirent *)((char *)tde + treclen); 3245 count1 += treclen; 3246 } 3247 ret = count1; 3248 } 3249 unlock_user(target_dirp, arg2, ret); 3250 free(dirp); 3251 } 3252 #else 3253 { 3254 struct dirent *dirp; 3255 long count = arg3; 3256 3257 dirp = lock_user(arg2, count, 0); 3258 ret = get_errno(sys_getdents(arg1, dirp, count)); 3259 if (!is_error(ret)) { 3260 struct dirent *de; 3261 int len = ret; 3262 int reclen; 3263 de = dirp; 3264 while (len > 0) { 3265 reclen = de->d_reclen; 3266 if (reclen > len) 3267 break; 3268 de->d_reclen = tswap16(reclen); 3269 tswapls(&de->d_ino); 3270 tswapls(&de->d_off); 3271 de = (struct dirent *)((char *)de + reclen); 3272 len -= reclen; 3273 } 3274 } 3275 unlock_user(dirp, arg2, ret); 3276 } 3277 #endif 3278 break; 3279 #ifdef TARGET_NR_getdents64 3280 case TARGET_NR_getdents64: 3281 { 3282 struct dirent64 *dirp; 3283 long count = arg3; 3284 dirp = lock_user(arg2, count, 0); 3285 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3286 if (!is_error(ret)) { 3287 struct dirent64 *de; 3288 int len = ret; 3289 int reclen; 3290 de = dirp; 3291 while (len > 0) { 3292 reclen = de->d_reclen; 3293 if (reclen > len) 3294 break; 3295 de->d_reclen = tswap16(reclen); 3296 tswap64s(&de->d_ino); 3297 tswap64s(&de->d_off); 3298 de = (struct dirent64 *)((char *)de + reclen); 3299 len -= reclen; 3300 } 3301 } 3302 unlock_user(dirp, arg2, ret); 3303 } 3304 break; 3305 #endif /* TARGET_NR_getdents64 */ 3306 case TARGET_NR__newselect: 3307 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3308 break; 3309 case TARGET_NR_poll: 3310 { 3311 struct target_pollfd *target_pfd; 3312 unsigned int nfds = arg2; 3313 int timeout = arg3; 3314 struct pollfd *pfd; 3315 unsigned int i; 3316 3317 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3318 pfd = alloca(sizeof(struct pollfd) * nfds); 3319 for(i = 0; i < nfds; i++) { 3320 pfd[i].fd = tswap32(target_pfd[i].fd); 3321 pfd[i].events = tswap16(target_pfd[i].events); 3322 } 3323 ret = get_errno(poll(pfd, nfds, timeout)); 3324 if (!is_error(ret)) { 3325 for(i = 0; i < nfds; i++) { 3326 target_pfd[i].revents = tswap16(pfd[i].revents); 3327 } 3328 ret += nfds * (sizeof(struct target_pollfd) 3329 - sizeof(struct pollfd)); 3330 } 3331 unlock_user(target_pfd, arg1, ret); 3332 } 3333 break; 3334 case TARGET_NR_flock: 3335 /* NOTE: the flock constant seems to be the same for every 3336 Linux platform */ 3337 ret = get_errno(flock(arg1, arg2)); 3338 break; 3339 case TARGET_NR_readv: 3340 { 3341 int count = arg3; 3342 struct iovec *vec; 3343 3344 vec = alloca(count * sizeof(struct iovec)); 3345 lock_iovec(vec, arg2, count, 0); 3346 ret = get_errno(readv(arg1, vec, count)); 3347 unlock_iovec(vec, arg2, count, 1); 3348 } 3349 break; 3350 case TARGET_NR_writev: 3351 { 3352 int count = arg3; 3353 struct iovec *vec; 3354 3355 vec = alloca(count * sizeof(struct iovec)); 3356 lock_iovec(vec, arg2, count, 1); 3357 ret = get_errno(writev(arg1, vec, count)); 3358 unlock_iovec(vec, arg2, count, 0); 3359 } 3360 break; 3361 case TARGET_NR_getsid: 3362 ret = get_errno(getsid(arg1)); 3363 break; 3364 case TARGET_NR_fdatasync: 3365 ret = get_errno(fdatasync(arg1)); 3366 break; 3367 case TARGET_NR__sysctl: 3368 /* We don't implement this, but ENODIR is always a safe 3369 return value. */ 3370 return -ENOTDIR; 3371 case TARGET_NR_sched_setparam: 3372 { 3373 struct sched_param *target_schp; 3374 struct sched_param schp; 3375 3376 lock_user_struct(target_schp, arg2, 1); 3377 schp.sched_priority = tswap32(target_schp->sched_priority); 3378 unlock_user_struct(target_schp, arg2, 0); 3379 ret = get_errno(sched_setparam(arg1, &schp)); 3380 } 3381 break; 3382 case TARGET_NR_sched_getparam: 3383 { 3384 struct sched_param *target_schp; 3385 struct sched_param schp; 3386 ret = get_errno(sched_getparam(arg1, &schp)); 3387 if (!is_error(ret)) { 3388 lock_user_struct(target_schp, arg2, 0); 3389 target_schp->sched_priority = tswap32(schp.sched_priority); 3390 unlock_user_struct(target_schp, arg2, 1); 3391 } 3392 } 3393 break; 3394 case TARGET_NR_sched_setscheduler: 3395 { 3396 struct sched_param *target_schp; 3397 struct sched_param schp; 3398 lock_user_struct(target_schp, arg3, 1); 3399 schp.sched_priority = tswap32(target_schp->sched_priority); 3400 unlock_user_struct(target_schp, arg3, 0); 3401 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 3402 } 3403 break; 3404 case TARGET_NR_sched_getscheduler: 3405 ret = get_errno(sched_getscheduler(arg1)); 3406 break; 3407 case TARGET_NR_sched_yield: 3408 ret = get_errno(sched_yield()); 3409 break; 3410 case TARGET_NR_sched_get_priority_max: 3411 ret = get_errno(sched_get_priority_max(arg1)); 3412 break; 3413 case TARGET_NR_sched_get_priority_min: 3414 ret = get_errno(sched_get_priority_min(arg1)); 3415 break; 3416 case TARGET_NR_sched_rr_get_interval: 3417 { 3418 struct timespec ts; 3419 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 3420 if (!is_error(ret)) { 3421 host_to_target_timespec(arg2, &ts); 3422 } 3423 } 3424 break; 3425 case TARGET_NR_nanosleep: 3426 { 3427 struct timespec req, rem; 3428 target_to_host_timespec(&req, arg1); 3429 ret = get_errno(nanosleep(&req, &rem)); 3430 if (is_error(ret) && arg2) { 3431 host_to_target_timespec(arg2, &rem); 3432 } 3433 } 3434 break; 3435 case TARGET_NR_query_module: 3436 goto unimplemented; 3437 case TARGET_NR_nfsservctl: 3438 goto unimplemented; 3439 case TARGET_NR_prctl: 3440 switch (arg1) 3441 { 3442 case PR_GET_PDEATHSIG: 3443 { 3444 int deathsig; 3445 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 3446 if (!is_error(ret) && arg2) 3447 tput32(arg2, deathsig); 3448 } 3449 break; 3450 default: 3451 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 3452 break; 3453 } 3454 break; 3455 #ifdef TARGET_NR_pread 3456 case TARGET_NR_pread: 3457 page_unprotect_range(arg2, arg3); 3458 p = lock_user(arg2, arg3, 0); 3459 ret = get_errno(pread(arg1, p, arg3, arg4)); 3460 unlock_user(p, arg2, ret); 3461 break; 3462 case TARGET_NR_pwrite: 3463 p = lock_user(arg2, arg3, 1); 3464 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 3465 unlock_user(p, arg2, 0); 3466 break; 3467 #endif 3468 case TARGET_NR_getcwd: 3469 p = lock_user(arg1, arg2, 0); 3470 ret = get_errno(sys_getcwd1(p, arg2)); 3471 unlock_user(p, arg1, ret); 3472 break; 3473 case TARGET_NR_capget: 3474 goto unimplemented; 3475 case TARGET_NR_capset: 3476 goto unimplemented; 3477 case TARGET_NR_sigaltstack: 3478 goto unimplemented; 3479 case TARGET_NR_sendfile: 3480 goto unimplemented; 3481 #ifdef TARGET_NR_getpmsg 3482 case TARGET_NR_getpmsg: 3483 goto unimplemented; 3484 #endif 3485 #ifdef TARGET_NR_putpmsg 3486 case TARGET_NR_putpmsg: 3487 goto unimplemented; 3488 #endif 3489 #ifdef TARGET_NR_vfork 3490 case TARGET_NR_vfork: 3491 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 3492 break; 3493 #endif 3494 #ifdef TARGET_NR_ugetrlimit 3495 case TARGET_NR_ugetrlimit: 3496 { 3497 struct rlimit rlim; 3498 ret = get_errno(getrlimit(arg1, &rlim)); 3499 if (!is_error(ret)) { 3500 struct target_rlimit *target_rlim; 3501 lock_user_struct(target_rlim, arg2, 0); 3502 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 3503 target_rlim->rlim_max = tswapl(rlim.rlim_max); 3504 unlock_user_struct(target_rlim, arg2, 1); 3505 } 3506 break; 3507 } 3508 #endif 3509 #ifdef TARGET_NR_truncate64 3510 case TARGET_NR_truncate64: 3511 p = lock_user_string(arg1); 3512 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 3513 unlock_user(p, arg1, 0); 3514 break; 3515 #endif 3516 #ifdef TARGET_NR_ftruncate64 3517 case TARGET_NR_ftruncate64: 3518 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 3519 break; 3520 #endif 3521 #ifdef TARGET_NR_stat64 3522 case TARGET_NR_stat64: 3523 p = lock_user_string(arg1); 3524 ret = get_errno(stat(path(p), &st)); 3525 unlock_user(p, arg1, 0); 3526 goto do_stat64; 3527 #endif 3528 #ifdef TARGET_NR_lstat64 3529 case TARGET_NR_lstat64: 3530 p = lock_user_string(arg1); 3531 ret = get_errno(lstat(path(p), &st)); 3532 unlock_user(p, arg1, 0); 3533 goto do_stat64; 3534 #endif 3535 #ifdef TARGET_NR_fstat64 3536 case TARGET_NR_fstat64: 3537 { 3538 ret = get_errno(fstat(arg1, &st)); 3539 do_stat64: 3540 if (!is_error(ret)) { 3541 #ifdef TARGET_ARM 3542 if (((CPUARMState *)cpu_env)->eabi) { 3543 struct target_eabi_stat64 *target_st; 3544 lock_user_struct(target_st, arg2, 1); 3545 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 3546 /* put_user is probably wrong. */ 3547 put_user(st.st_dev, &target_st->st_dev); 3548 put_user(st.st_ino, &target_st->st_ino); 3549 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3550 put_user(st.st_ino, &target_st->__st_ino); 3551 #endif 3552 put_user(st.st_mode, &target_st->st_mode); 3553 put_user(st.st_nlink, &target_st->st_nlink); 3554 put_user(st.st_uid, &target_st->st_uid); 3555 put_user(st.st_gid, &target_st->st_gid); 3556 put_user(st.st_rdev, &target_st->st_rdev); 3557 /* XXX: better use of kernel struct */ 3558 put_user(st.st_size, &target_st->st_size); 3559 put_user(st.st_blksize, &target_st->st_blksize); 3560 put_user(st.st_blocks, &target_st->st_blocks); 3561 put_user(st.st_atime, &target_st->target_st_atime); 3562 put_user(st.st_mtime, &target_st->target_st_mtime); 3563 put_user(st.st_ctime, &target_st->target_st_ctime); 3564 unlock_user_struct(target_st, arg2, 0); 3565 } else 3566 #endif 3567 { 3568 struct target_stat64 *target_st; 3569 lock_user_struct(target_st, arg2, 1); 3570 memset(target_st, 0, sizeof(struct target_stat64)); 3571 /* ??? put_user is probably wrong. */ 3572 put_user(st.st_dev, &target_st->st_dev); 3573 put_user(st.st_ino, &target_st->st_ino); 3574 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3575 put_user(st.st_ino, &target_st->__st_ino); 3576 #endif 3577 put_user(st.st_mode, &target_st->st_mode); 3578 put_user(st.st_nlink, &target_st->st_nlink); 3579 put_user(st.st_uid, &target_st->st_uid); 3580 put_user(st.st_gid, &target_st->st_gid); 3581 put_user(st.st_rdev, &target_st->st_rdev); 3582 /* XXX: better use of kernel struct */ 3583 put_user(st.st_size, &target_st->st_size); 3584 put_user(st.st_blksize, &target_st->st_blksize); 3585 put_user(st.st_blocks, &target_st->st_blocks); 3586 put_user(st.st_atime, &target_st->target_st_atime); 3587 put_user(st.st_mtime, &target_st->target_st_mtime); 3588 put_user(st.st_ctime, &target_st->target_st_ctime); 3589 unlock_user_struct(target_st, arg2, 0); 3590 } 3591 } 3592 } 3593 break; 3594 #endif 3595 #ifdef USE_UID16 3596 case TARGET_NR_lchown: 3597 p = lock_user_string(arg1); 3598 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 3599 unlock_user(p, arg1, 0); 3600 break; 3601 case TARGET_NR_getuid: 3602 ret = get_errno(high2lowuid(getuid())); 3603 break; 3604 case TARGET_NR_getgid: 3605 ret = get_errno(high2lowgid(getgid())); 3606 break; 3607 case TARGET_NR_geteuid: 3608 ret = get_errno(high2lowuid(geteuid())); 3609 break; 3610 case TARGET_NR_getegid: 3611 ret = get_errno(high2lowgid(getegid())); 3612 break; 3613 case TARGET_NR_setreuid: 3614 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 3615 break; 3616 case TARGET_NR_setregid: 3617 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 3618 break; 3619 case TARGET_NR_getgroups: 3620 { 3621 int gidsetsize = arg1; 3622 uint16_t *target_grouplist; 3623 gid_t *grouplist; 3624 int i; 3625 3626 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3627 ret = get_errno(getgroups(gidsetsize, grouplist)); 3628 if (!is_error(ret)) { 3629 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 3630 for(i = 0;i < gidsetsize; i++) 3631 target_grouplist[i] = tswap16(grouplist[i]); 3632 unlock_user(target_grouplist, arg2, gidsetsize * 2); 3633 } 3634 } 3635 break; 3636 case TARGET_NR_setgroups: 3637 { 3638 int gidsetsize = arg1; 3639 uint16_t *target_grouplist; 3640 gid_t *grouplist; 3641 int i; 3642 3643 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3644 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 3645 for(i = 0;i < gidsetsize; i++) 3646 grouplist[i] = tswap16(target_grouplist[i]); 3647 unlock_user(target_grouplist, arg2, 0); 3648 ret = get_errno(setgroups(gidsetsize, grouplist)); 3649 } 3650 break; 3651 case TARGET_NR_fchown: 3652 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 3653 break; 3654 #ifdef TARGET_NR_setresuid 3655 case TARGET_NR_setresuid: 3656 ret = get_errno(setresuid(low2highuid(arg1), 3657 low2highuid(arg2), 3658 low2highuid(arg3))); 3659 break; 3660 #endif 3661 #ifdef TARGET_NR_getresuid 3662 case TARGET_NR_getresuid: 3663 { 3664 uid_t ruid, euid, suid; 3665 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3666 if (!is_error(ret)) { 3667 tput16(arg1, tswap16(high2lowuid(ruid))); 3668 tput16(arg2, tswap16(high2lowuid(euid))); 3669 tput16(arg3, tswap16(high2lowuid(suid))); 3670 } 3671 } 3672 break; 3673 #endif 3674 #ifdef TARGET_NR_getresgid 3675 case TARGET_NR_setresgid: 3676 ret = get_errno(setresgid(low2highgid(arg1), 3677 low2highgid(arg2), 3678 low2highgid(arg3))); 3679 break; 3680 #endif 3681 #ifdef TARGET_NR_getresgid 3682 case TARGET_NR_getresgid: 3683 { 3684 gid_t rgid, egid, sgid; 3685 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3686 if (!is_error(ret)) { 3687 tput16(arg1, tswap16(high2lowgid(rgid))); 3688 tput16(arg2, tswap16(high2lowgid(egid))); 3689 tput16(arg3, tswap16(high2lowgid(sgid))); 3690 } 3691 } 3692 break; 3693 #endif 3694 case TARGET_NR_chown: 3695 p = lock_user_string(arg1); 3696 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 3697 unlock_user(p, arg1, 0); 3698 break; 3699 case TARGET_NR_setuid: 3700 ret = get_errno(setuid(low2highuid(arg1))); 3701 break; 3702 case TARGET_NR_setgid: 3703 ret = get_errno(setgid(low2highgid(arg1))); 3704 break; 3705 case TARGET_NR_setfsuid: 3706 ret = get_errno(setfsuid(arg1)); 3707 break; 3708 case TARGET_NR_setfsgid: 3709 ret = get_errno(setfsgid(arg1)); 3710 break; 3711 #endif /* USE_UID16 */ 3712 3713 #ifdef TARGET_NR_lchown32 3714 case TARGET_NR_lchown32: 3715 p = lock_user_string(arg1); 3716 ret = get_errno(lchown(p, arg2, arg3)); 3717 unlock_user(p, arg1, 0); 3718 break; 3719 #endif 3720 #ifdef TARGET_NR_getuid32 3721 case TARGET_NR_getuid32: 3722 ret = get_errno(getuid()); 3723 break; 3724 #endif 3725 #ifdef TARGET_NR_getgid32 3726 case TARGET_NR_getgid32: 3727 ret = get_errno(getgid()); 3728 break; 3729 #endif 3730 #ifdef TARGET_NR_geteuid32 3731 case TARGET_NR_geteuid32: 3732 ret = get_errno(geteuid()); 3733 break; 3734 #endif 3735 #ifdef TARGET_NR_getegid32 3736 case TARGET_NR_getegid32: 3737 ret = get_errno(getegid()); 3738 break; 3739 #endif 3740 #ifdef TARGET_NR_setreuid32 3741 case TARGET_NR_setreuid32: 3742 ret = get_errno(setreuid(arg1, arg2)); 3743 break; 3744 #endif 3745 #ifdef TARGET_NR_setregid32 3746 case TARGET_NR_setregid32: 3747 ret = get_errno(setregid(arg1, arg2)); 3748 break; 3749 #endif 3750 #ifdef TARGET_NR_getgroups32 3751 case TARGET_NR_getgroups32: 3752 { 3753 int gidsetsize = arg1; 3754 uint32_t *target_grouplist; 3755 gid_t *grouplist; 3756 int i; 3757 3758 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3759 ret = get_errno(getgroups(gidsetsize, grouplist)); 3760 if (!is_error(ret)) { 3761 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 3762 for(i = 0;i < gidsetsize; i++) 3763 target_grouplist[i] = tswap32(grouplist[i]); 3764 unlock_user(target_grouplist, arg2, gidsetsize * 4); 3765 } 3766 } 3767 break; 3768 #endif 3769 #ifdef TARGET_NR_setgroups32 3770 case TARGET_NR_setgroups32: 3771 { 3772 int gidsetsize = arg1; 3773 uint32_t *target_grouplist; 3774 gid_t *grouplist; 3775 int i; 3776 3777 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3778 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 3779 for(i = 0;i < gidsetsize; i++) 3780 grouplist[i] = tswap32(target_grouplist[i]); 3781 unlock_user(target_grouplist, arg2, 0); 3782 ret = get_errno(setgroups(gidsetsize, grouplist)); 3783 } 3784 break; 3785 #endif 3786 #ifdef TARGET_NR_fchown32 3787 case TARGET_NR_fchown32: 3788 ret = get_errno(fchown(arg1, arg2, arg3)); 3789 break; 3790 #endif 3791 #ifdef TARGET_NR_setresuid32 3792 case TARGET_NR_setresuid32: 3793 ret = get_errno(setresuid(arg1, arg2, arg3)); 3794 break; 3795 #endif 3796 #ifdef TARGET_NR_getresuid32 3797 case TARGET_NR_getresuid32: 3798 { 3799 uid_t ruid, euid, suid; 3800 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3801 if (!is_error(ret)) { 3802 tput32(arg1, tswap32(ruid)); 3803 tput32(arg2, tswap32(euid)); 3804 tput32(arg3, tswap32(suid)); 3805 } 3806 } 3807 break; 3808 #endif 3809 #ifdef TARGET_NR_setresgid32 3810 case TARGET_NR_setresgid32: 3811 ret = get_errno(setresgid(arg1, arg2, arg3)); 3812 break; 3813 #endif 3814 #ifdef TARGET_NR_getresgid32 3815 case TARGET_NR_getresgid32: 3816 { 3817 gid_t rgid, egid, sgid; 3818 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3819 if (!is_error(ret)) { 3820 tput32(arg1, tswap32(rgid)); 3821 tput32(arg2, tswap32(egid)); 3822 tput32(arg3, tswap32(sgid)); 3823 } 3824 } 3825 break; 3826 #endif 3827 #ifdef TARGET_NR_chown32 3828 case TARGET_NR_chown32: 3829 p = lock_user_string(arg1); 3830 ret = get_errno(chown(p, arg2, arg3)); 3831 unlock_user(p, arg1, 0); 3832 break; 3833 #endif 3834 #ifdef TARGET_NR_setuid32 3835 case TARGET_NR_setuid32: 3836 ret = get_errno(setuid(arg1)); 3837 break; 3838 #endif 3839 #ifdef TARGET_NR_setgid32 3840 case TARGET_NR_setgid32: 3841 ret = get_errno(setgid(arg1)); 3842 break; 3843 #endif 3844 #ifdef TARGET_NR_setfsuid32 3845 case TARGET_NR_setfsuid32: 3846 ret = get_errno(setfsuid(arg1)); 3847 break; 3848 #endif 3849 #ifdef TARGET_NR_setfsgid32 3850 case TARGET_NR_setfsgid32: 3851 ret = get_errno(setfsgid(arg1)); 3852 break; 3853 #endif 3854 3855 case TARGET_NR_pivot_root: 3856 goto unimplemented; 3857 #ifdef TARGET_NR_mincore 3858 case TARGET_NR_mincore: 3859 goto unimplemented; 3860 #endif 3861 #ifdef TARGET_NR_madvise 3862 case TARGET_NR_madvise: 3863 /* A straight passthrough may not be safe because qemu sometimes 3864 turns private flie-backed mappings into anonymous mappings. 3865 This will break MADV_DONTNEED. 3866 This is a hint, so ignoring and returning success is ok. */ 3867 ret = get_errno(0); 3868 break; 3869 #endif 3870 #if TARGET_LONG_BITS == 32 3871 case TARGET_NR_fcntl64: 3872 { 3873 struct flock64 fl; 3874 struct target_flock64 *target_fl; 3875 #ifdef TARGET_ARM 3876 struct target_eabi_flock64 *target_efl; 3877 #endif 3878 3879 switch(arg2) { 3880 case F_GETLK64: 3881 ret = get_errno(fcntl(arg1, arg2, &fl)); 3882 if (ret == 0) { 3883 #ifdef TARGET_ARM 3884 if (((CPUARMState *)cpu_env)->eabi) { 3885 lock_user_struct(target_efl, arg3, 0); 3886 target_efl->l_type = tswap16(fl.l_type); 3887 target_efl->l_whence = tswap16(fl.l_whence); 3888 target_efl->l_start = tswap64(fl.l_start); 3889 target_efl->l_len = tswap64(fl.l_len); 3890 target_efl->l_pid = tswapl(fl.l_pid); 3891 unlock_user_struct(target_efl, arg3, 1); 3892 } else 3893 #endif 3894 { 3895 lock_user_struct(target_fl, arg3, 0); 3896 target_fl->l_type = tswap16(fl.l_type); 3897 target_fl->l_whence = tswap16(fl.l_whence); 3898 target_fl->l_start = tswap64(fl.l_start); 3899 target_fl->l_len = tswap64(fl.l_len); 3900 target_fl->l_pid = tswapl(fl.l_pid); 3901 unlock_user_struct(target_fl, arg3, 1); 3902 } 3903 } 3904 break; 3905 3906 case F_SETLK64: 3907 case F_SETLKW64: 3908 #ifdef TARGET_ARM 3909 if (((CPUARMState *)cpu_env)->eabi) { 3910 lock_user_struct(target_efl, arg3, 1); 3911 fl.l_type = tswap16(target_efl->l_type); 3912 fl.l_whence = tswap16(target_efl->l_whence); 3913 fl.l_start = tswap64(target_efl->l_start); 3914 fl.l_len = tswap64(target_efl->l_len); 3915 fl.l_pid = tswapl(target_efl->l_pid); 3916 unlock_user_struct(target_efl, arg3, 0); 3917 } else 3918 #endif 3919 { 3920 lock_user_struct(target_fl, arg3, 1); 3921 fl.l_type = tswap16(target_fl->l_type); 3922 fl.l_whence = tswap16(target_fl->l_whence); 3923 fl.l_start = tswap64(target_fl->l_start); 3924 fl.l_len = tswap64(target_fl->l_len); 3925 fl.l_pid = tswapl(target_fl->l_pid); 3926 unlock_user_struct(target_fl, arg3, 0); 3927 } 3928 ret = get_errno(fcntl(arg1, arg2, &fl)); 3929 break; 3930 default: 3931 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 3932 break; 3933 } 3934 break; 3935 } 3936 #endif 3937 #ifdef TARGET_NR_cacheflush 3938 case TARGET_NR_cacheflush: 3939 /* self-modifying code is handled automatically, so nothing needed */ 3940 ret = 0; 3941 break; 3942 #endif 3943 #ifdef TARGET_NR_security 3944 case TARGET_NR_security: 3945 goto unimplemented; 3946 #endif 3947 #ifdef TARGET_NR_getpagesize 3948 case TARGET_NR_getpagesize: 3949 ret = TARGET_PAGE_SIZE; 3950 break; 3951 #endif 3952 case TARGET_NR_gettid: 3953 ret = get_errno(gettid()); 3954 break; 3955 case TARGET_NR_readahead: 3956 goto unimplemented; 3957 #ifdef TARGET_NR_setxattr 3958 case TARGET_NR_setxattr: 3959 case TARGET_NR_lsetxattr: 3960 case TARGET_NR_fsetxattr: 3961 case TARGET_NR_getxattr: 3962 case TARGET_NR_lgetxattr: 3963 case TARGET_NR_fgetxattr: 3964 case TARGET_NR_listxattr: 3965 case TARGET_NR_llistxattr: 3966 case TARGET_NR_flistxattr: 3967 case TARGET_NR_removexattr: 3968 case TARGET_NR_lremovexattr: 3969 case TARGET_NR_fremovexattr: 3970 goto unimplemented_nowarn; 3971 #endif 3972 #ifdef TARGET_NR_set_thread_area 3973 case TARGET_NR_set_thread_area: 3974 #ifdef TARGET_MIPS 3975 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 3976 ret = 0; 3977 break; 3978 #else 3979 goto unimplemented_nowarn; 3980 #endif 3981 #endif 3982 #ifdef TARGET_NR_get_thread_area 3983 case TARGET_NR_get_thread_area: 3984 goto unimplemented_nowarn; 3985 #endif 3986 #ifdef TARGET_NR_getdomainname 3987 case TARGET_NR_getdomainname: 3988 goto unimplemented_nowarn; 3989 #endif 3990 3991 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 3992 case TARGET_NR_set_tid_address: 3993 ret = get_errno(set_tid_address((int *) arg1)); 3994 break; 3995 #endif 3996 3997 default: 3998 unimplemented: 3999 gemu_log("qemu: Unsupported syscall: %d\n", num); 4000 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) 4001 unimplemented_nowarn: 4002 #endif 4003 ret = -ENOSYS; 4004 break; 4005 } 4006 fail: 4007 #ifdef DEBUG 4008 gemu_log(" = %ld\n", ret); 4009 #endif 4010 return ret; 4011 } 4012 4013