1 /* 2 * Linux syscalls 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <stdarg.h> 23 #include <string.h> 24 #include <elf.h> 25 #include <endian.h> 26 #include <errno.h> 27 #include <unistd.h> 28 #include <fcntl.h> 29 #include <time.h> 30 #include <sys/types.h> 31 #include <sys/ipc.h> 32 #include <sys/msg.h> 33 #include <sys/wait.h> 34 #include <sys/time.h> 35 #include <sys/stat.h> 36 #include <sys/mount.h> 37 #include <sys/prctl.h> 38 #include <sys/resource.h> 39 #include <sys/mman.h> 40 #include <sys/swap.h> 41 #include <signal.h> 42 #include <sched.h> 43 #include <sys/socket.h> 44 #include <sys/uio.h> 45 #include <sys/poll.h> 46 #include <sys/times.h> 47 #include <sys/shm.h> 48 #include <sys/sem.h> 49 #include <sys/statfs.h> 50 #include <utime.h> 51 #include <sys/sysinfo.h> 52 //#include <sys/user.h> 53 #include <netinet/ip.h> 54 #include <netinet/tcp.h> 55 56 #define termios host_termios 57 #define winsize host_winsize 58 #define termio host_termio 59 #define sgttyb host_sgttyb /* same as target */ 60 #define tchars host_tchars /* same as target */ 61 #define ltchars host_ltchars /* same as target */ 62 63 #include <linux/termios.h> 64 #include <linux/unistd.h> 65 #include <linux/utsname.h> 66 #include <linux/cdrom.h> 67 #include <linux/hdreg.h> 68 #include <linux/soundcard.h> 69 #include <linux/dirent.h> 70 #include <linux/kd.h> 71 72 #include "qemu.h" 73 74 //#define DEBUG 75 76 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \ 77 || defined(TARGET_M68K) || defined(TARGET_SH4) 78 /* 16 bit uid wrappers emulation */ 79 #define USE_UID16 80 #endif 81 82 //#include <linux/msdos_fs.h> 83 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 84 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 85 86 87 #undef _syscall0 88 #undef _syscall1 89 #undef _syscall2 90 #undef _syscall3 91 #undef _syscall4 92 #undef _syscall5 93 #undef _syscall6 94 95 #define _syscall0(type,name) \ 96 type name (void) \ 97 { \ 98 return syscall(__NR_##name); \ 99 } 100 101 #define _syscall1(type,name,type1,arg1) \ 102 type name (type1 arg1) \ 103 { \ 104 return syscall(__NR_##name, arg1); \ 105 } 106 107 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 108 type name (type1 arg1,type2 arg2) \ 109 { \ 110 return syscall(__NR_##name, arg1, arg2); \ 111 } 112 113 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 114 type name (type1 arg1,type2 arg2,type3 arg3) \ 115 { \ 116 return syscall(__NR_##name, arg1, arg2, arg3); \ 117 } 118 119 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 120 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 121 { \ 122 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 123 } 124 125 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 126 type5,arg5) \ 127 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 128 { \ 129 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 130 } 131 132 133 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 134 type5,arg5,type6,arg6) \ 135 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ 136 { \ 137 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 138 } 139 140 141 #define __NR_sys_uname __NR_uname 142 #define __NR_sys_getcwd1 __NR_getcwd 143 #define __NR_sys_getdents __NR_getdents 144 #define __NR_sys_getdents64 __NR_getdents64 145 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 146 #define __NR_sys_syslog __NR_syslog 147 148 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 149 #define __NR__llseek __NR_lseek 150 #endif 151 152 #ifdef __NR_gettid 153 _syscall0(int, gettid) 154 #else 155 static int gettid(void) { 156 return -ENOSYS; 157 } 158 #endif 159 _syscall1(int,sys_uname,struct new_utsname *,buf) 160 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 161 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 162 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 163 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 164 loff_t *, res, uint, wh); 165 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 166 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 167 #ifdef __NR_exit_group 168 _syscall1(int,exit_group,int,error_code) 169 #endif 170 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 171 _syscall1(int,set_tid_address,int *,tidptr) 172 #endif 173 174 extern int personality(int); 175 extern int flock(int, int); 176 extern int setfsuid(int); 177 extern int setfsgid(int); 178 extern int setresuid(uid_t, uid_t, uid_t); 179 extern int getresuid(uid_t *, uid_t *, uid_t *); 180 extern int setresgid(gid_t, gid_t, gid_t); 181 extern int getresgid(gid_t *, gid_t *, gid_t *); 182 extern int setgroups(int, gid_t *); 183 184 static inline long get_errno(long ret) 185 { 186 if (ret == -1) 187 return -errno; 188 else 189 return ret; 190 } 191 192 static inline int is_error(long ret) 193 { 194 return (unsigned long)ret >= (unsigned long)(-4096); 195 } 196 197 static target_ulong target_brk; 198 static target_ulong target_original_brk; 199 200 void target_set_brk(target_ulong new_brk) 201 { 202 target_original_brk = target_brk = new_brk; 203 } 204 205 long do_brk(target_ulong new_brk) 206 { 207 target_ulong brk_page; 208 long mapped_addr; 209 int new_alloc_size; 210 211 if (!new_brk) 212 return target_brk; 213 if (new_brk < target_original_brk) 214 return -ENOMEM; 215 216 brk_page = HOST_PAGE_ALIGN(target_brk); 217 218 /* If the new brk is less than this, set it and we're done... */ 219 if (new_brk < brk_page) { 220 target_brk = new_brk; 221 return target_brk; 222 } 223 224 /* We need to allocate more memory after the brk... */ 225 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 226 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 227 PROT_READ|PROT_WRITE, 228 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 229 if (is_error(mapped_addr)) { 230 return mapped_addr; 231 } else { 232 target_brk = new_brk; 233 return target_brk; 234 } 235 } 236 237 static inline fd_set *target_to_host_fds(fd_set *fds, 238 target_long *target_fds, int n) 239 { 240 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 241 return (fd_set *)target_fds; 242 #else 243 int i, b; 244 if (target_fds) { 245 FD_ZERO(fds); 246 for(i = 0;i < n; i++) { 247 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 248 (i & (TARGET_LONG_BITS - 1))) & 1; 249 if (b) 250 FD_SET(i, fds); 251 } 252 return fds; 253 } else { 254 return NULL; 255 } 256 #endif 257 } 258 259 static inline void host_to_target_fds(target_long *target_fds, 260 fd_set *fds, int n) 261 { 262 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 263 /* nothing to do */ 264 #else 265 int i, nw, j, k; 266 target_long v; 267 268 if (target_fds) { 269 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS; 270 k = 0; 271 for(i = 0;i < nw; i++) { 272 v = 0; 273 for(j = 0; j < TARGET_LONG_BITS; j++) { 274 v |= ((FD_ISSET(k, fds) != 0) << j); 275 k++; 276 } 277 target_fds[i] = tswapl(v); 278 } 279 } 280 #endif 281 } 282 283 #if defined(__alpha__) 284 #define HOST_HZ 1024 285 #else 286 #define HOST_HZ 100 287 #endif 288 289 static inline long host_to_target_clock_t(long ticks) 290 { 291 #if HOST_HZ == TARGET_HZ 292 return ticks; 293 #else 294 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 295 #endif 296 } 297 298 static inline void host_to_target_rusage(target_ulong target_addr, 299 const struct rusage *rusage) 300 { 301 struct target_rusage *target_rusage; 302 303 lock_user_struct(target_rusage, target_addr, 0); 304 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 305 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 306 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 307 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 308 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 309 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 310 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 311 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 312 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 313 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 314 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 315 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 316 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 317 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 318 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 319 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 320 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 321 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 322 unlock_user_struct(target_rusage, target_addr, 1); 323 } 324 325 static inline void target_to_host_timeval(struct timeval *tv, 326 target_ulong target_addr) 327 { 328 struct target_timeval *target_tv; 329 330 lock_user_struct(target_tv, target_addr, 1); 331 tv->tv_sec = tswapl(target_tv->tv_sec); 332 tv->tv_usec = tswapl(target_tv->tv_usec); 333 unlock_user_struct(target_tv, target_addr, 0); 334 } 335 336 static inline void host_to_target_timeval(target_ulong target_addr, 337 const struct timeval *tv) 338 { 339 struct target_timeval *target_tv; 340 341 lock_user_struct(target_tv, target_addr, 0); 342 target_tv->tv_sec = tswapl(tv->tv_sec); 343 target_tv->tv_usec = tswapl(tv->tv_usec); 344 unlock_user_struct(target_tv, target_addr, 1); 345 } 346 347 348 static long do_select(long n, 349 target_ulong rfd_p, target_ulong wfd_p, 350 target_ulong efd_p, target_ulong target_tv) 351 { 352 fd_set rfds, wfds, efds; 353 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 354 target_long *target_rfds, *target_wfds, *target_efds; 355 struct timeval tv, *tv_ptr; 356 long ret; 357 int ok; 358 359 if (rfd_p) { 360 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1); 361 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 362 } else { 363 target_rfds = NULL; 364 rfds_ptr = NULL; 365 } 366 if (wfd_p) { 367 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1); 368 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 369 } else { 370 target_wfds = NULL; 371 wfds_ptr = NULL; 372 } 373 if (efd_p) { 374 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1); 375 efds_ptr = target_to_host_fds(&efds, target_efds, n); 376 } else { 377 target_efds = NULL; 378 efds_ptr = NULL; 379 } 380 381 if (target_tv) { 382 target_to_host_timeval(&tv, target_tv); 383 tv_ptr = &tv; 384 } else { 385 tv_ptr = NULL; 386 } 387 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 388 ok = !is_error(ret); 389 390 if (ok) { 391 host_to_target_fds(target_rfds, rfds_ptr, n); 392 host_to_target_fds(target_wfds, wfds_ptr, n); 393 host_to_target_fds(target_efds, efds_ptr, n); 394 395 if (target_tv) { 396 host_to_target_timeval(target_tv, &tv); 397 } 398 } 399 if (target_rfds) 400 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0); 401 if (target_wfds) 402 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0); 403 if (target_efds) 404 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0); 405 406 return ret; 407 } 408 409 static inline void target_to_host_sockaddr(struct sockaddr *addr, 410 target_ulong target_addr, 411 socklen_t len) 412 { 413 struct target_sockaddr *target_saddr; 414 415 target_saddr = lock_user(target_addr, len, 1); 416 memcpy(addr, target_saddr, len); 417 addr->sa_family = tswap16(target_saddr->sa_family); 418 unlock_user(target_saddr, target_addr, 0); 419 } 420 421 static inline void host_to_target_sockaddr(target_ulong target_addr, 422 struct sockaddr *addr, 423 socklen_t len) 424 { 425 struct target_sockaddr *target_saddr; 426 427 target_saddr = lock_user(target_addr, len, 0); 428 memcpy(target_saddr, addr, len); 429 target_saddr->sa_family = tswap16(addr->sa_family); 430 unlock_user(target_saddr, target_addr, len); 431 } 432 433 /* ??? Should this also swap msgh->name? */ 434 static inline void target_to_host_cmsg(struct msghdr *msgh, 435 struct target_msghdr *target_msgh) 436 { 437 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 438 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 439 socklen_t space = 0; 440 441 while (cmsg && target_cmsg) { 442 void *data = CMSG_DATA(cmsg); 443 void *target_data = TARGET_CMSG_DATA(target_cmsg); 444 445 int len = tswapl(target_cmsg->cmsg_len) 446 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 447 448 space += CMSG_SPACE(len); 449 if (space > msgh->msg_controllen) { 450 space -= CMSG_SPACE(len); 451 gemu_log("Host cmsg overflow\n"); 452 break; 453 } 454 455 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 456 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 457 cmsg->cmsg_len = CMSG_LEN(len); 458 459 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 460 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 461 memcpy(data, target_data, len); 462 } else { 463 int *fd = (int *)data; 464 int *target_fd = (int *)target_data; 465 int i, numfds = len / sizeof(int); 466 467 for (i = 0; i < numfds; i++) 468 fd[i] = tswap32(target_fd[i]); 469 } 470 471 cmsg = CMSG_NXTHDR(msgh, cmsg); 472 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 473 } 474 475 msgh->msg_controllen = space; 476 } 477 478 /* ??? Should this also swap msgh->name? */ 479 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 480 struct msghdr *msgh) 481 { 482 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 483 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 484 socklen_t space = 0; 485 486 while (cmsg && target_cmsg) { 487 void *data = CMSG_DATA(cmsg); 488 void *target_data = TARGET_CMSG_DATA(target_cmsg); 489 490 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 491 492 space += TARGET_CMSG_SPACE(len); 493 if (space > tswapl(target_msgh->msg_controllen)) { 494 space -= TARGET_CMSG_SPACE(len); 495 gemu_log("Target cmsg overflow\n"); 496 break; 497 } 498 499 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 500 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 501 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 502 503 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 504 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 505 memcpy(target_data, data, len); 506 } else { 507 int *fd = (int *)data; 508 int *target_fd = (int *)target_data; 509 int i, numfds = len / sizeof(int); 510 511 for (i = 0; i < numfds; i++) 512 target_fd[i] = tswap32(fd[i]); 513 } 514 515 cmsg = CMSG_NXTHDR(msgh, cmsg); 516 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 517 } 518 519 msgh->msg_controllen = tswapl(space); 520 } 521 522 static long do_setsockopt(int sockfd, int level, int optname, 523 target_ulong optval, socklen_t optlen) 524 { 525 int val, ret; 526 527 switch(level) { 528 case SOL_TCP: 529 /* TCP options all take an 'int' value. */ 530 if (optlen < sizeof(uint32_t)) 531 return -EINVAL; 532 533 val = tget32(optval); 534 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 535 break; 536 case SOL_IP: 537 switch(optname) { 538 case IP_TOS: 539 case IP_TTL: 540 case IP_HDRINCL: 541 case IP_ROUTER_ALERT: 542 case IP_RECVOPTS: 543 case IP_RETOPTS: 544 case IP_PKTINFO: 545 case IP_MTU_DISCOVER: 546 case IP_RECVERR: 547 case IP_RECVTOS: 548 #ifdef IP_FREEBIND 549 case IP_FREEBIND: 550 #endif 551 case IP_MULTICAST_TTL: 552 case IP_MULTICAST_LOOP: 553 val = 0; 554 if (optlen >= sizeof(uint32_t)) { 555 val = tget32(optval); 556 } else if (optlen >= 1) { 557 val = tget8(optval); 558 } 559 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 560 break; 561 default: 562 goto unimplemented; 563 } 564 break; 565 case TARGET_SOL_SOCKET: 566 switch (optname) { 567 /* Options with 'int' argument. */ 568 case TARGET_SO_DEBUG: 569 optname = SO_DEBUG; 570 break; 571 case TARGET_SO_REUSEADDR: 572 optname = SO_REUSEADDR; 573 break; 574 case TARGET_SO_TYPE: 575 optname = SO_TYPE; 576 break; 577 case TARGET_SO_ERROR: 578 optname = SO_ERROR; 579 break; 580 case TARGET_SO_DONTROUTE: 581 optname = SO_DONTROUTE; 582 break; 583 case TARGET_SO_BROADCAST: 584 optname = SO_BROADCAST; 585 break; 586 case TARGET_SO_SNDBUF: 587 optname = SO_SNDBUF; 588 break; 589 case TARGET_SO_RCVBUF: 590 optname = SO_RCVBUF; 591 break; 592 case TARGET_SO_KEEPALIVE: 593 optname = SO_KEEPALIVE; 594 break; 595 case TARGET_SO_OOBINLINE: 596 optname = SO_OOBINLINE; 597 break; 598 case TARGET_SO_NO_CHECK: 599 optname = SO_NO_CHECK; 600 break; 601 case TARGET_SO_PRIORITY: 602 optname = SO_PRIORITY; 603 break; 604 #ifdef SO_BSDCOMPAT 605 case TARGET_SO_BSDCOMPAT: 606 optname = SO_BSDCOMPAT; 607 break; 608 #endif 609 case TARGET_SO_PASSCRED: 610 optname = SO_PASSCRED; 611 break; 612 case TARGET_SO_TIMESTAMP: 613 optname = SO_TIMESTAMP; 614 break; 615 case TARGET_SO_RCVLOWAT: 616 optname = SO_RCVLOWAT; 617 break; 618 case TARGET_SO_RCVTIMEO: 619 optname = SO_RCVTIMEO; 620 break; 621 case TARGET_SO_SNDTIMEO: 622 optname = SO_SNDTIMEO; 623 break; 624 break; 625 default: 626 goto unimplemented; 627 } 628 if (optlen < sizeof(uint32_t)) 629 return -EINVAL; 630 631 val = tget32(optval); 632 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 633 break; 634 default: 635 unimplemented: 636 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 637 ret = -ENOSYS; 638 } 639 return ret; 640 } 641 642 static long do_getsockopt(int sockfd, int level, int optname, 643 target_ulong optval, target_ulong optlen) 644 { 645 int len, lv, val, ret; 646 647 switch(level) { 648 case TARGET_SOL_SOCKET: 649 level = SOL_SOCKET; 650 switch (optname) { 651 case TARGET_SO_LINGER: 652 case TARGET_SO_RCVTIMEO: 653 case TARGET_SO_SNDTIMEO: 654 case TARGET_SO_PEERCRED: 655 case TARGET_SO_PEERNAME: 656 /* These don't just return a single integer */ 657 goto unimplemented; 658 default: 659 goto int_case; 660 } 661 break; 662 case SOL_TCP: 663 /* TCP options all take an 'int' value. */ 664 int_case: 665 len = tget32(optlen); 666 if (len < 0) 667 return -EINVAL; 668 lv = sizeof(int); 669 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 670 if (ret < 0) 671 return ret; 672 val = tswap32(val); 673 if (len > lv) 674 len = lv; 675 if (len == 4) 676 tput32(optval, val); 677 else 678 tput8(optval, val); 679 tput32(optlen, len); 680 break; 681 case SOL_IP: 682 switch(optname) { 683 case IP_TOS: 684 case IP_TTL: 685 case IP_HDRINCL: 686 case IP_ROUTER_ALERT: 687 case IP_RECVOPTS: 688 case IP_RETOPTS: 689 case IP_PKTINFO: 690 case IP_MTU_DISCOVER: 691 case IP_RECVERR: 692 case IP_RECVTOS: 693 #ifdef IP_FREEBIND 694 case IP_FREEBIND: 695 #endif 696 case IP_MULTICAST_TTL: 697 case IP_MULTICAST_LOOP: 698 len = tget32(optlen); 699 if (len < 0) 700 return -EINVAL; 701 lv = sizeof(int); 702 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 703 if (ret < 0) 704 return ret; 705 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 706 len = 1; 707 tput32(optlen, len); 708 tput8(optval, val); 709 } else { 710 if (len > sizeof(int)) 711 len = sizeof(int); 712 tput32(optlen, len); 713 tput32(optval, val); 714 } 715 break; 716 default: 717 goto unimplemented; 718 } 719 break; 720 default: 721 unimplemented: 722 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 723 level, optname); 724 ret = -ENOSYS; 725 break; 726 } 727 return ret; 728 } 729 730 static void lock_iovec(struct iovec *vec, target_ulong target_addr, 731 int count, int copy) 732 { 733 struct target_iovec *target_vec; 734 target_ulong base; 735 int i; 736 737 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 738 for(i = 0;i < count; i++) { 739 base = tswapl(target_vec[i].iov_base); 740 vec[i].iov_len = tswapl(target_vec[i].iov_len); 741 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 742 } 743 unlock_user (target_vec, target_addr, 0); 744 } 745 746 static void unlock_iovec(struct iovec *vec, target_ulong target_addr, 747 int count, int copy) 748 { 749 struct target_iovec *target_vec; 750 target_ulong base; 751 int i; 752 753 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 754 for(i = 0;i < count; i++) { 755 base = tswapl(target_vec[i].iov_base); 756 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 757 } 758 unlock_user (target_vec, target_addr, 0); 759 } 760 761 static long do_socket(int domain, int type, int protocol) 762 { 763 #if defined(TARGET_MIPS) 764 switch(type) { 765 case TARGET_SOCK_DGRAM: 766 type = SOCK_DGRAM; 767 break; 768 case TARGET_SOCK_STREAM: 769 type = SOCK_STREAM; 770 break; 771 case TARGET_SOCK_RAW: 772 type = SOCK_RAW; 773 break; 774 case TARGET_SOCK_RDM: 775 type = SOCK_RDM; 776 break; 777 case TARGET_SOCK_SEQPACKET: 778 type = SOCK_SEQPACKET; 779 break; 780 case TARGET_SOCK_PACKET: 781 type = SOCK_PACKET; 782 break; 783 } 784 #endif 785 return get_errno(socket(domain, type, protocol)); 786 } 787 788 static long do_bind(int sockfd, target_ulong target_addr, 789 socklen_t addrlen) 790 { 791 void *addr = alloca(addrlen); 792 793 target_to_host_sockaddr(addr, target_addr, addrlen); 794 return get_errno(bind(sockfd, addr, addrlen)); 795 } 796 797 static long do_connect(int sockfd, target_ulong target_addr, 798 socklen_t addrlen) 799 { 800 void *addr = alloca(addrlen); 801 802 target_to_host_sockaddr(addr, target_addr, addrlen); 803 return get_errno(connect(sockfd, addr, addrlen)); 804 } 805 806 static long do_sendrecvmsg(int fd, target_ulong target_msg, 807 int flags, int send) 808 { 809 long ret; 810 struct target_msghdr *msgp; 811 struct msghdr msg; 812 int count; 813 struct iovec *vec; 814 target_ulong target_vec; 815 816 lock_user_struct(msgp, target_msg, 1); 817 if (msgp->msg_name) { 818 msg.msg_namelen = tswap32(msgp->msg_namelen); 819 msg.msg_name = alloca(msg.msg_namelen); 820 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 821 msg.msg_namelen); 822 } else { 823 msg.msg_name = NULL; 824 msg.msg_namelen = 0; 825 } 826 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 827 msg.msg_control = alloca(msg.msg_controllen); 828 msg.msg_flags = tswap32(msgp->msg_flags); 829 830 count = tswapl(msgp->msg_iovlen); 831 vec = alloca(count * sizeof(struct iovec)); 832 target_vec = tswapl(msgp->msg_iov); 833 lock_iovec(vec, target_vec, count, send); 834 msg.msg_iovlen = count; 835 msg.msg_iov = vec; 836 837 if (send) { 838 target_to_host_cmsg(&msg, msgp); 839 ret = get_errno(sendmsg(fd, &msg, flags)); 840 } else { 841 ret = get_errno(recvmsg(fd, &msg, flags)); 842 if (!is_error(ret)) 843 host_to_target_cmsg(msgp, &msg); 844 } 845 unlock_iovec(vec, target_vec, count, !send); 846 return ret; 847 } 848 849 static long do_accept(int fd, target_ulong target_addr, 850 target_ulong target_addrlen) 851 { 852 socklen_t addrlen = tget32(target_addrlen); 853 void *addr = alloca(addrlen); 854 long ret; 855 856 ret = get_errno(accept(fd, addr, &addrlen)); 857 if (!is_error(ret)) { 858 host_to_target_sockaddr(target_addr, addr, addrlen); 859 tput32(target_addrlen, addrlen); 860 } 861 return ret; 862 } 863 864 static long do_getpeername(int fd, target_ulong target_addr, 865 target_ulong target_addrlen) 866 { 867 socklen_t addrlen = tget32(target_addrlen); 868 void *addr = alloca(addrlen); 869 long ret; 870 871 ret = get_errno(getpeername(fd, addr, &addrlen)); 872 if (!is_error(ret)) { 873 host_to_target_sockaddr(target_addr, addr, addrlen); 874 tput32(target_addrlen, addrlen); 875 } 876 return ret; 877 } 878 879 static long do_getsockname(int fd, target_ulong target_addr, 880 target_ulong target_addrlen) 881 { 882 socklen_t addrlen = tget32(target_addrlen); 883 void *addr = alloca(addrlen); 884 long ret; 885 886 ret = get_errno(getsockname(fd, addr, &addrlen)); 887 if (!is_error(ret)) { 888 host_to_target_sockaddr(target_addr, addr, addrlen); 889 tput32(target_addrlen, addrlen); 890 } 891 return ret; 892 } 893 894 static long do_socketpair(int domain, int type, int protocol, 895 target_ulong target_tab) 896 { 897 int tab[2]; 898 long ret; 899 900 ret = get_errno(socketpair(domain, type, protocol, tab)); 901 if (!is_error(ret)) { 902 tput32(target_tab, tab[0]); 903 tput32(target_tab + 4, tab[1]); 904 } 905 return ret; 906 } 907 908 static long do_sendto(int fd, target_ulong msg, size_t len, int flags, 909 target_ulong target_addr, socklen_t addrlen) 910 { 911 void *addr; 912 void *host_msg; 913 long ret; 914 915 host_msg = lock_user(msg, len, 1); 916 if (target_addr) { 917 addr = alloca(addrlen); 918 target_to_host_sockaddr(addr, target_addr, addrlen); 919 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 920 } else { 921 ret = get_errno(send(fd, host_msg, len, flags)); 922 } 923 unlock_user(host_msg, msg, 0); 924 return ret; 925 } 926 927 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags, 928 target_ulong target_addr, target_ulong target_addrlen) 929 { 930 socklen_t addrlen; 931 void *addr; 932 void *host_msg; 933 long ret; 934 935 host_msg = lock_user(msg, len, 0); 936 if (target_addr) { 937 addrlen = tget32(target_addrlen); 938 addr = alloca(addrlen); 939 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 940 } else { 941 addr = NULL; /* To keep compiler quiet. */ 942 ret = get_errno(recv(fd, host_msg, len, flags)); 943 } 944 if (!is_error(ret)) { 945 if (target_addr) { 946 host_to_target_sockaddr(target_addr, addr, addrlen); 947 tput32(target_addrlen, addrlen); 948 } 949 unlock_user(host_msg, msg, len); 950 } else { 951 unlock_user(host_msg, msg, 0); 952 } 953 return ret; 954 } 955 956 static long do_socketcall(int num, target_ulong vptr) 957 { 958 long ret; 959 const int n = sizeof(target_ulong); 960 961 switch(num) { 962 case SOCKOP_socket: 963 { 964 int domain = tgetl(vptr); 965 int type = tgetl(vptr + n); 966 int protocol = tgetl(vptr + 2 * n); 967 ret = do_socket(domain, type, protocol); 968 } 969 break; 970 case SOCKOP_bind: 971 { 972 int sockfd = tgetl(vptr); 973 target_ulong target_addr = tgetl(vptr + n); 974 socklen_t addrlen = tgetl(vptr + 2 * n); 975 ret = do_bind(sockfd, target_addr, addrlen); 976 } 977 break; 978 case SOCKOP_connect: 979 { 980 int sockfd = tgetl(vptr); 981 target_ulong target_addr = tgetl(vptr + n); 982 socklen_t addrlen = tgetl(vptr + 2 * n); 983 ret = do_connect(sockfd, target_addr, addrlen); 984 } 985 break; 986 case SOCKOP_listen: 987 { 988 int sockfd = tgetl(vptr); 989 int backlog = tgetl(vptr + n); 990 ret = get_errno(listen(sockfd, backlog)); 991 } 992 break; 993 case SOCKOP_accept: 994 { 995 int sockfd = tgetl(vptr); 996 target_ulong target_addr = tgetl(vptr + n); 997 target_ulong target_addrlen = tgetl(vptr + 2 * n); 998 ret = do_accept(sockfd, target_addr, target_addrlen); 999 } 1000 break; 1001 case SOCKOP_getsockname: 1002 { 1003 int sockfd = tgetl(vptr); 1004 target_ulong target_addr = tgetl(vptr + n); 1005 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1006 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1007 } 1008 break; 1009 case SOCKOP_getpeername: 1010 { 1011 int sockfd = tgetl(vptr); 1012 target_ulong target_addr = tgetl(vptr + n); 1013 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1014 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1015 } 1016 break; 1017 case SOCKOP_socketpair: 1018 { 1019 int domain = tgetl(vptr); 1020 int type = tgetl(vptr + n); 1021 int protocol = tgetl(vptr + 2 * n); 1022 target_ulong tab = tgetl(vptr + 3 * n); 1023 ret = do_socketpair(domain, type, protocol, tab); 1024 } 1025 break; 1026 case SOCKOP_send: 1027 { 1028 int sockfd = tgetl(vptr); 1029 target_ulong msg = tgetl(vptr + n); 1030 size_t len = tgetl(vptr + 2 * n); 1031 int flags = tgetl(vptr + 3 * n); 1032 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1033 } 1034 break; 1035 case SOCKOP_recv: 1036 { 1037 int sockfd = tgetl(vptr); 1038 target_ulong msg = tgetl(vptr + n); 1039 size_t len = tgetl(vptr + 2 * n); 1040 int flags = tgetl(vptr + 3 * n); 1041 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1042 } 1043 break; 1044 case SOCKOP_sendto: 1045 { 1046 int sockfd = tgetl(vptr); 1047 target_ulong msg = tgetl(vptr + n); 1048 size_t len = tgetl(vptr + 2 * n); 1049 int flags = tgetl(vptr + 3 * n); 1050 target_ulong addr = tgetl(vptr + 4 * n); 1051 socklen_t addrlen = tgetl(vptr + 5 * n); 1052 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1053 } 1054 break; 1055 case SOCKOP_recvfrom: 1056 { 1057 int sockfd = tgetl(vptr); 1058 target_ulong msg = tgetl(vptr + n); 1059 size_t len = tgetl(vptr + 2 * n); 1060 int flags = tgetl(vptr + 3 * n); 1061 target_ulong addr = tgetl(vptr + 4 * n); 1062 target_ulong addrlen = tgetl(vptr + 5 * n); 1063 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1064 } 1065 break; 1066 case SOCKOP_shutdown: 1067 { 1068 int sockfd = tgetl(vptr); 1069 int how = tgetl(vptr + n); 1070 1071 ret = get_errno(shutdown(sockfd, how)); 1072 } 1073 break; 1074 case SOCKOP_sendmsg: 1075 case SOCKOP_recvmsg: 1076 { 1077 int fd; 1078 target_ulong target_msg; 1079 int flags; 1080 1081 fd = tgetl(vptr); 1082 target_msg = tgetl(vptr + n); 1083 flags = tgetl(vptr + 2 * n); 1084 1085 ret = do_sendrecvmsg(fd, target_msg, flags, 1086 (num == SOCKOP_sendmsg)); 1087 } 1088 break; 1089 case SOCKOP_setsockopt: 1090 { 1091 int sockfd = tgetl(vptr); 1092 int level = tgetl(vptr + n); 1093 int optname = tgetl(vptr + 2 * n); 1094 target_ulong optval = tgetl(vptr + 3 * n); 1095 socklen_t optlen = tgetl(vptr + 4 * n); 1096 1097 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1098 } 1099 break; 1100 case SOCKOP_getsockopt: 1101 { 1102 int sockfd = tgetl(vptr); 1103 int level = tgetl(vptr + n); 1104 int optname = tgetl(vptr + 2 * n); 1105 target_ulong optval = tgetl(vptr + 3 * n); 1106 target_ulong poptlen = tgetl(vptr + 4 * n); 1107 1108 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1109 } 1110 break; 1111 default: 1112 gemu_log("Unsupported socketcall: %d\n", num); 1113 ret = -ENOSYS; 1114 break; 1115 } 1116 return ret; 1117 } 1118 1119 #define N_SHM_REGIONS 32 1120 1121 static struct shm_region { 1122 uint32_t start; 1123 uint32_t size; 1124 } shm_regions[N_SHM_REGIONS]; 1125 1126 union semun { 1127 int val; 1128 struct senid_ds *buf; 1129 unsigned short *array; 1130 }; 1131 1132 /* ??? This only works with linear mappings. */ 1133 static long do_ipc(long call, long first, long second, long third, 1134 long ptr, long fifth) 1135 { 1136 int version; 1137 long ret = 0; 1138 unsigned long raddr; 1139 struct shmid_ds shm_info; 1140 int i; 1141 1142 version = call >> 16; 1143 call &= 0xffff; 1144 1145 switch (call) { 1146 case IPCOP_semop: 1147 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1148 break; 1149 1150 case IPCOP_semget: 1151 ret = get_errno(semget(first, second, third)); 1152 break; 1153 1154 case IPCOP_semctl: 1155 ret = get_errno(semctl(first, second, third, ((union semun*)ptr)->val)); 1156 1157 break; 1158 1159 case IPCOP_semtimedop: 1160 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1161 ret = -ENOSYS; 1162 break; 1163 1164 case IPCOP_msgget: 1165 ret = get_errno(msgget(first, second)); 1166 break; 1167 1168 case IPCOP_msgsnd: 1169 ret = get_errno(msgsnd(first, (struct msgbuf *) ptr, second, third)); 1170 break; 1171 1172 case IPCOP_msgctl: 1173 ret = get_errno(msgctl(first, second, (struct msqid_ds *) ptr)); 1174 break; 1175 1176 case IPCOP_msgrcv: 1177 { 1178 struct ipc_kludge 1179 { 1180 void *__unbounded msgp; 1181 long int msgtyp; 1182 }; 1183 1184 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1185 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1186 1187 ret = get_errno(msgrcv(first, msgp, second, 0, third)); 1188 1189 } 1190 break; 1191 1192 case IPCOP_shmat: 1193 /* SHM_* flags are the same on all linux platforms */ 1194 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1195 if (is_error(ret)) 1196 break; 1197 raddr = ret; 1198 /* find out the length of the shared memory segment */ 1199 1200 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1201 if (is_error(ret)) { 1202 /* can't get length, bail out */ 1203 shmdt((void *) raddr); 1204 break; 1205 } 1206 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1207 PAGE_VALID | PAGE_READ | 1208 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1209 for (i = 0; i < N_SHM_REGIONS; ++i) { 1210 if (shm_regions[i].start == 0) { 1211 shm_regions[i].start = raddr; 1212 shm_regions[i].size = shm_info.shm_segsz; 1213 break; 1214 } 1215 } 1216 if (put_user(raddr, (uint32_t *)third)) 1217 return -EFAULT; 1218 ret = 0; 1219 break; 1220 case IPCOP_shmdt: 1221 for (i = 0; i < N_SHM_REGIONS; ++i) { 1222 if (shm_regions[i].start == ptr) { 1223 shm_regions[i].start = 0; 1224 page_set_flags(ptr, shm_regions[i].size, 0); 1225 break; 1226 } 1227 } 1228 ret = get_errno(shmdt((void *) ptr)); 1229 break; 1230 1231 case IPCOP_shmget: 1232 /* IPC_* flag values are the same on all linux platforms */ 1233 ret = get_errno(shmget(first, second, third)); 1234 break; 1235 1236 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1237 case IPCOP_shmctl: 1238 switch(second) { 1239 case IPC_RMID: 1240 case SHM_LOCK: 1241 case SHM_UNLOCK: 1242 ret = get_errno(shmctl(first, second, NULL)); 1243 break; 1244 default: 1245 goto unimplemented; 1246 } 1247 break; 1248 default: 1249 unimplemented: 1250 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1251 ret = -ENOSYS; 1252 break; 1253 } 1254 return ret; 1255 } 1256 1257 /* kernel structure types definitions */ 1258 #define IFNAMSIZ 16 1259 1260 #define STRUCT(name, list...) STRUCT_ ## name, 1261 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1262 enum { 1263 #include "syscall_types.h" 1264 }; 1265 #undef STRUCT 1266 #undef STRUCT_SPECIAL 1267 1268 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1269 #define STRUCT_SPECIAL(name) 1270 #include "syscall_types.h" 1271 #undef STRUCT 1272 #undef STRUCT_SPECIAL 1273 1274 typedef struct IOCTLEntry { 1275 unsigned int target_cmd; 1276 unsigned int host_cmd; 1277 const char *name; 1278 int access; 1279 const argtype arg_type[5]; 1280 } IOCTLEntry; 1281 1282 #define IOC_R 0x0001 1283 #define IOC_W 0x0002 1284 #define IOC_RW (IOC_R | IOC_W) 1285 1286 #define MAX_STRUCT_SIZE 4096 1287 1288 IOCTLEntry ioctl_entries[] = { 1289 #define IOCTL(cmd, access, types...) \ 1290 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1291 #include "ioctls.h" 1292 { 0, 0, }, 1293 }; 1294 1295 /* ??? Implement proper locking for ioctls. */ 1296 static long do_ioctl(long fd, long cmd, long arg) 1297 { 1298 const IOCTLEntry *ie; 1299 const argtype *arg_type; 1300 long ret; 1301 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1302 int target_size; 1303 void *argptr; 1304 1305 ie = ioctl_entries; 1306 for(;;) { 1307 if (ie->target_cmd == 0) { 1308 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 1309 return -ENOSYS; 1310 } 1311 if (ie->target_cmd == cmd) 1312 break; 1313 ie++; 1314 } 1315 arg_type = ie->arg_type; 1316 #if defined(DEBUG) 1317 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 1318 #endif 1319 switch(arg_type[0]) { 1320 case TYPE_NULL: 1321 /* no argument */ 1322 ret = get_errno(ioctl(fd, ie->host_cmd)); 1323 break; 1324 case TYPE_PTRVOID: 1325 case TYPE_INT: 1326 /* int argment */ 1327 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1328 break; 1329 case TYPE_PTR: 1330 arg_type++; 1331 target_size = thunk_type_size(arg_type, 0); 1332 switch(ie->access) { 1333 case IOC_R: 1334 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1335 if (!is_error(ret)) { 1336 argptr = lock_user(arg, target_size, 0); 1337 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1338 unlock_user(argptr, arg, target_size); 1339 } 1340 break; 1341 case IOC_W: 1342 argptr = lock_user(arg, target_size, 1); 1343 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1344 unlock_user(argptr, arg, 0); 1345 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1346 break; 1347 default: 1348 case IOC_RW: 1349 argptr = lock_user(arg, target_size, 1); 1350 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1351 unlock_user(argptr, arg, 0); 1352 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1353 if (!is_error(ret)) { 1354 argptr = lock_user(arg, target_size, 0); 1355 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1356 unlock_user(argptr, arg, target_size); 1357 } 1358 break; 1359 } 1360 break; 1361 default: 1362 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 1363 ret = -ENOSYS; 1364 break; 1365 } 1366 return ret; 1367 } 1368 1369 bitmask_transtbl iflag_tbl[] = { 1370 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1371 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1372 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1373 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1374 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1375 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1376 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1377 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1378 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1379 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1380 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1381 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1382 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1383 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1384 { 0, 0, 0, 0 } 1385 }; 1386 1387 bitmask_transtbl oflag_tbl[] = { 1388 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1389 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1390 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1391 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1392 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1393 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1394 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1395 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1396 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1397 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1398 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1399 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1400 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1401 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1402 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1403 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1404 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1405 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1406 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1407 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1408 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1409 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1410 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1411 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1412 { 0, 0, 0, 0 } 1413 }; 1414 1415 bitmask_transtbl cflag_tbl[] = { 1416 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1417 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1418 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1419 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1420 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1421 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1422 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1423 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1424 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1425 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1426 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1427 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1428 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1429 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1430 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1431 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1432 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1433 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1434 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1435 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1436 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1437 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1438 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1439 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1440 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1441 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1442 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1443 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1444 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1445 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1446 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1447 { 0, 0, 0, 0 } 1448 }; 1449 1450 bitmask_transtbl lflag_tbl[] = { 1451 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1452 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1453 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1454 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1455 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1456 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1457 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1458 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1459 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1460 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1461 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1462 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1463 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1464 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1465 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1466 { 0, 0, 0, 0 } 1467 }; 1468 1469 static void target_to_host_termios (void *dst, const void *src) 1470 { 1471 struct host_termios *host = dst; 1472 const struct target_termios *target = src; 1473 1474 host->c_iflag = 1475 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 1476 host->c_oflag = 1477 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 1478 host->c_cflag = 1479 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 1480 host->c_lflag = 1481 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 1482 host->c_line = target->c_line; 1483 1484 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 1485 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 1486 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 1487 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 1488 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 1489 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 1490 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 1491 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 1492 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 1493 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 1494 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 1495 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 1496 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 1497 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 1498 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 1499 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 1500 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 1501 } 1502 1503 static void host_to_target_termios (void *dst, const void *src) 1504 { 1505 struct target_termios *target = dst; 1506 const struct host_termios *host = src; 1507 1508 target->c_iflag = 1509 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 1510 target->c_oflag = 1511 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 1512 target->c_cflag = 1513 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 1514 target->c_lflag = 1515 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 1516 target->c_line = host->c_line; 1517 1518 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 1519 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 1520 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 1521 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 1522 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 1523 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 1524 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 1525 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 1526 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 1527 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 1528 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 1529 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 1530 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 1531 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 1532 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 1533 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 1534 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 1535 } 1536 1537 StructEntry struct_termios_def = { 1538 .convert = { host_to_target_termios, target_to_host_termios }, 1539 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 1540 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 1541 }; 1542 1543 static bitmask_transtbl mmap_flags_tbl[] = { 1544 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 1545 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 1546 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 1547 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 1548 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 1549 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 1550 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 1551 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 1552 { 0, 0, 0, 0 } 1553 }; 1554 1555 static bitmask_transtbl fcntl_flags_tbl[] = { 1556 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 1557 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 1558 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 1559 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 1560 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 1561 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 1562 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 1563 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 1564 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 1565 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 1566 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 1567 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 1568 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 1569 #if defined(O_DIRECT) 1570 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 1571 #endif 1572 { 0, 0, 0, 0 } 1573 }; 1574 1575 #if defined(TARGET_I386) 1576 1577 /* NOTE: there is really one LDT for all the threads */ 1578 uint8_t *ldt_table; 1579 1580 static int read_ldt(target_ulong ptr, unsigned long bytecount) 1581 { 1582 int size; 1583 void *p; 1584 1585 if (!ldt_table) 1586 return 0; 1587 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 1588 if (size > bytecount) 1589 size = bytecount; 1590 p = lock_user(ptr, size, 0); 1591 /* ??? Shoudl this by byteswapped? */ 1592 memcpy(p, ldt_table, size); 1593 unlock_user(p, ptr, size); 1594 return size; 1595 } 1596 1597 /* XXX: add locking support */ 1598 static int write_ldt(CPUX86State *env, 1599 target_ulong ptr, unsigned long bytecount, int oldmode) 1600 { 1601 struct target_modify_ldt_ldt_s ldt_info; 1602 struct target_modify_ldt_ldt_s *target_ldt_info; 1603 int seg_32bit, contents, read_exec_only, limit_in_pages; 1604 int seg_not_present, useable; 1605 uint32_t *lp, entry_1, entry_2; 1606 1607 if (bytecount != sizeof(ldt_info)) 1608 return -EINVAL; 1609 lock_user_struct(target_ldt_info, ptr, 1); 1610 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 1611 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 1612 ldt_info.limit = tswap32(target_ldt_info->limit); 1613 ldt_info.flags = tswap32(target_ldt_info->flags); 1614 unlock_user_struct(target_ldt_info, ptr, 0); 1615 1616 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 1617 return -EINVAL; 1618 seg_32bit = ldt_info.flags & 1; 1619 contents = (ldt_info.flags >> 1) & 3; 1620 read_exec_only = (ldt_info.flags >> 3) & 1; 1621 limit_in_pages = (ldt_info.flags >> 4) & 1; 1622 seg_not_present = (ldt_info.flags >> 5) & 1; 1623 useable = (ldt_info.flags >> 6) & 1; 1624 1625 if (contents == 3) { 1626 if (oldmode) 1627 return -EINVAL; 1628 if (seg_not_present == 0) 1629 return -EINVAL; 1630 } 1631 /* allocate the LDT */ 1632 if (!ldt_table) { 1633 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1634 if (!ldt_table) 1635 return -ENOMEM; 1636 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1637 env->ldt.base = h2g(ldt_table); 1638 env->ldt.limit = 0xffff; 1639 } 1640 1641 /* NOTE: same code as Linux kernel */ 1642 /* Allow LDTs to be cleared by the user. */ 1643 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1644 if (oldmode || 1645 (contents == 0 && 1646 read_exec_only == 1 && 1647 seg_32bit == 0 && 1648 limit_in_pages == 0 && 1649 seg_not_present == 1 && 1650 useable == 0 )) { 1651 entry_1 = 0; 1652 entry_2 = 0; 1653 goto install; 1654 } 1655 } 1656 1657 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1658 (ldt_info.limit & 0x0ffff); 1659 entry_2 = (ldt_info.base_addr & 0xff000000) | 1660 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1661 (ldt_info.limit & 0xf0000) | 1662 ((read_exec_only ^ 1) << 9) | 1663 (contents << 10) | 1664 ((seg_not_present ^ 1) << 15) | 1665 (seg_32bit << 22) | 1666 (limit_in_pages << 23) | 1667 0x7000; 1668 if (!oldmode) 1669 entry_2 |= (useable << 20); 1670 1671 /* Install the new entry ... */ 1672 install: 1673 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1674 lp[0] = tswap32(entry_1); 1675 lp[1] = tswap32(entry_2); 1676 return 0; 1677 } 1678 1679 /* specific and weird i386 syscalls */ 1680 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount) 1681 { 1682 int ret = -ENOSYS; 1683 1684 switch (func) { 1685 case 0: 1686 ret = read_ldt(ptr, bytecount); 1687 break; 1688 case 1: 1689 ret = write_ldt(env, ptr, bytecount, 1); 1690 break; 1691 case 0x11: 1692 ret = write_ldt(env, ptr, bytecount, 0); 1693 break; 1694 } 1695 return ret; 1696 } 1697 1698 #endif /* defined(TARGET_I386) */ 1699 1700 /* this stack is the equivalent of the kernel stack associated with a 1701 thread/process */ 1702 #define NEW_STACK_SIZE 8192 1703 1704 static int clone_func(void *arg) 1705 { 1706 CPUState *env = arg; 1707 cpu_loop(env); 1708 /* never exits */ 1709 return 0; 1710 } 1711 1712 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 1713 { 1714 int ret; 1715 TaskState *ts; 1716 uint8_t *new_stack; 1717 CPUState *new_env; 1718 1719 if (flags & CLONE_VM) { 1720 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 1721 memset(ts, 0, sizeof(TaskState)); 1722 new_stack = ts->stack; 1723 ts->used = 1; 1724 /* add in task state list */ 1725 ts->next = first_task_state; 1726 first_task_state = ts; 1727 /* we create a new CPU instance. */ 1728 new_env = cpu_copy(env); 1729 #if defined(TARGET_I386) 1730 if (!newsp) 1731 newsp = env->regs[R_ESP]; 1732 new_env->regs[R_ESP] = newsp; 1733 new_env->regs[R_EAX] = 0; 1734 #elif defined(TARGET_ARM) 1735 if (!newsp) 1736 newsp = env->regs[13]; 1737 new_env->regs[13] = newsp; 1738 new_env->regs[0] = 0; 1739 #elif defined(TARGET_SPARC) 1740 if (!newsp) 1741 newsp = env->regwptr[22]; 1742 new_env->regwptr[22] = newsp; 1743 new_env->regwptr[0] = 0; 1744 /* XXXXX */ 1745 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 1746 #elif defined(TARGET_M68K) 1747 if (!newsp) 1748 newsp = env->aregs[7]; 1749 new_env->aregs[7] = newsp; 1750 new_env->dregs[0] = 0; 1751 /* ??? is this sufficient? */ 1752 #elif defined(TARGET_MIPS) 1753 if (!newsp) 1754 newsp = env->gpr[29]; 1755 new_env->gpr[29] = newsp; 1756 #elif defined(TARGET_PPC) 1757 if (!newsp) 1758 newsp = env->gpr[1]; 1759 new_env->gpr[1] = newsp; 1760 { 1761 int i; 1762 for (i = 7; i < 32; i++) 1763 new_env->gpr[i] = 0; 1764 } 1765 #elif defined(TARGET_SH4) 1766 if (!newsp) 1767 newsp = env->gregs[15]; 1768 new_env->gregs[15] = newsp; 1769 /* XXXXX */ 1770 #elif defined(TARGET_ALPHA) 1771 if (!newsp) 1772 newsp = env->ir[30]; 1773 new_env->ir[30] = newsp; 1774 /* ? */ 1775 { 1776 int i; 1777 for (i = 7; i < 30; i++) 1778 new_env->ir[i] = 0; 1779 } 1780 #else 1781 #error unsupported target CPU 1782 #endif 1783 new_env->opaque = ts; 1784 #ifdef __ia64__ 1785 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1786 #else 1787 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1788 #endif 1789 } else { 1790 /* if no CLONE_VM, we consider it is a fork */ 1791 if ((flags & ~CSIGNAL) != 0) 1792 return -EINVAL; 1793 ret = fork(); 1794 } 1795 return ret; 1796 } 1797 1798 static long do_fcntl(int fd, int cmd, target_ulong arg) 1799 { 1800 struct flock fl; 1801 struct target_flock *target_fl; 1802 struct flock64 fl64; 1803 struct target_flock64 *target_fl64; 1804 long ret; 1805 1806 switch(cmd) { 1807 case TARGET_F_GETLK: 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 if (ret == 0) { 1817 lock_user_struct(target_fl, arg, 0); 1818 target_fl->l_type = tswap16(fl.l_type); 1819 target_fl->l_whence = tswap16(fl.l_whence); 1820 target_fl->l_start = tswapl(fl.l_start); 1821 target_fl->l_len = tswapl(fl.l_len); 1822 target_fl->l_pid = tswapl(fl.l_pid); 1823 unlock_user_struct(target_fl, arg, 1); 1824 } 1825 break; 1826 1827 case TARGET_F_SETLK: 1828 case TARGET_F_SETLKW: 1829 lock_user_struct(target_fl, arg, 1); 1830 fl.l_type = tswap16(target_fl->l_type); 1831 fl.l_whence = tswap16(target_fl->l_whence); 1832 fl.l_start = tswapl(target_fl->l_start); 1833 fl.l_len = tswapl(target_fl->l_len); 1834 fl.l_pid = tswapl(target_fl->l_pid); 1835 unlock_user_struct(target_fl, arg, 0); 1836 ret = fcntl(fd, cmd, &fl); 1837 break; 1838 1839 case TARGET_F_GETLK64: 1840 lock_user_struct(target_fl64, arg, 1); 1841 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 1842 fl64.l_whence = tswap16(target_fl64->l_whence); 1843 fl64.l_start = tswapl(target_fl64->l_start); 1844 fl64.l_len = tswapl(target_fl64->l_len); 1845 fl64.l_pid = tswap16(target_fl64->l_pid); 1846 unlock_user_struct(target_fl64, arg, 0); 1847 ret = fcntl(fd, cmd >> 1, &fl64); 1848 if (ret == 0) { 1849 lock_user_struct(target_fl64, arg, 0); 1850 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 1851 target_fl64->l_whence = tswap16(fl64.l_whence); 1852 target_fl64->l_start = tswapl(fl64.l_start); 1853 target_fl64->l_len = tswapl(fl64.l_len); 1854 target_fl64->l_pid = tswapl(fl64.l_pid); 1855 unlock_user_struct(target_fl64, arg, 1); 1856 } 1857 break; 1858 case TARGET_F_SETLK64: 1859 case TARGET_F_SETLKW64: 1860 lock_user_struct(target_fl64, arg, 1); 1861 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 1862 fl64.l_whence = tswap16(target_fl64->l_whence); 1863 fl64.l_start = tswapl(target_fl64->l_start); 1864 fl64.l_len = tswapl(target_fl64->l_len); 1865 fl64.l_pid = tswap16(target_fl64->l_pid); 1866 unlock_user_struct(target_fl64, arg, 0); 1867 ret = fcntl(fd, cmd >> 1, &fl64); 1868 break; 1869 1870 case F_GETFL: 1871 ret = fcntl(fd, cmd, arg); 1872 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 1873 break; 1874 1875 case F_SETFL: 1876 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 1877 break; 1878 1879 default: 1880 ret = fcntl(fd, cmd, arg); 1881 break; 1882 } 1883 return ret; 1884 } 1885 1886 #ifdef USE_UID16 1887 1888 static inline int high2lowuid(int uid) 1889 { 1890 if (uid > 65535) 1891 return 65534; 1892 else 1893 return uid; 1894 } 1895 1896 static inline int high2lowgid(int gid) 1897 { 1898 if (gid > 65535) 1899 return 65534; 1900 else 1901 return gid; 1902 } 1903 1904 static inline int low2highuid(int uid) 1905 { 1906 if ((int16_t)uid == -1) 1907 return -1; 1908 else 1909 return uid; 1910 } 1911 1912 static inline int low2highgid(int gid) 1913 { 1914 if ((int16_t)gid == -1) 1915 return -1; 1916 else 1917 return gid; 1918 } 1919 1920 #endif /* USE_UID16 */ 1921 1922 void syscall_init(void) 1923 { 1924 IOCTLEntry *ie; 1925 const argtype *arg_type; 1926 int size; 1927 1928 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1929 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1930 #include "syscall_types.h" 1931 #undef STRUCT 1932 #undef STRUCT_SPECIAL 1933 1934 /* we patch the ioctl size if necessary. We rely on the fact that 1935 no ioctl has all the bits at '1' in the size field */ 1936 ie = ioctl_entries; 1937 while (ie->target_cmd != 0) { 1938 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 1939 TARGET_IOC_SIZEMASK) { 1940 arg_type = ie->arg_type; 1941 if (arg_type[0] != TYPE_PTR) { 1942 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 1943 ie->target_cmd); 1944 exit(1); 1945 } 1946 arg_type++; 1947 size = thunk_type_size(arg_type, 0); 1948 ie->target_cmd = (ie->target_cmd & 1949 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 1950 (size << TARGET_IOC_SIZESHIFT); 1951 } 1952 /* automatic consistency check if same arch */ 1953 #if defined(__i386__) && defined(TARGET_I386) 1954 if (ie->target_cmd != ie->host_cmd) { 1955 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 1956 ie->target_cmd, ie->host_cmd); 1957 } 1958 #endif 1959 ie++; 1960 } 1961 } 1962 1963 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 1964 { 1965 #ifdef TARGET_WORDS_BIG_ENDIAN 1966 return ((uint64_t)word0 << 32) | word1; 1967 #else 1968 return ((uint64_t)word1 << 32) | word0; 1969 #endif 1970 } 1971 1972 #ifdef TARGET_NR_truncate64 1973 static inline long target_truncate64(void *cpu_env, const char *arg1, 1974 long arg2, long arg3, long arg4) 1975 { 1976 #ifdef TARGET_ARM 1977 if (((CPUARMState *)cpu_env)->eabi) 1978 { 1979 arg2 = arg3; 1980 arg3 = arg4; 1981 } 1982 #endif 1983 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 1984 } 1985 #endif 1986 1987 #ifdef TARGET_NR_ftruncate64 1988 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 1989 long arg3, long arg4) 1990 { 1991 #ifdef TARGET_ARM 1992 if (((CPUARMState *)cpu_env)->eabi) 1993 { 1994 arg2 = arg3; 1995 arg3 = arg4; 1996 } 1997 #endif 1998 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 1999 } 2000 #endif 2001 2002 static inline void target_to_host_timespec(struct timespec *host_ts, 2003 target_ulong target_addr) 2004 { 2005 struct target_timespec *target_ts; 2006 2007 lock_user_struct(target_ts, target_addr, 1); 2008 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2009 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2010 unlock_user_struct(target_ts, target_addr, 0); 2011 } 2012 2013 static inline void host_to_target_timespec(target_ulong target_addr, 2014 struct timespec *host_ts) 2015 { 2016 struct target_timespec *target_ts; 2017 2018 lock_user_struct(target_ts, target_addr, 0); 2019 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2020 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2021 unlock_user_struct(target_ts, target_addr, 1); 2022 } 2023 2024 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 2025 long arg4, long arg5, long arg6) 2026 { 2027 long ret; 2028 struct stat st; 2029 struct statfs stfs; 2030 void *p; 2031 2032 #ifdef DEBUG 2033 gemu_log("syscall %d", num); 2034 #endif 2035 switch(num) { 2036 case TARGET_NR_exit: 2037 #ifdef HAVE_GPROF 2038 _mcleanup(); 2039 #endif 2040 gdb_exit(cpu_env, arg1); 2041 /* XXX: should free thread stack and CPU env */ 2042 _exit(arg1); 2043 ret = 0; /* avoid warning */ 2044 break; 2045 case TARGET_NR_read: 2046 page_unprotect_range(arg2, arg3); 2047 p = lock_user(arg2, arg3, 0); 2048 ret = get_errno(read(arg1, p, arg3)); 2049 unlock_user(p, arg2, ret); 2050 break; 2051 case TARGET_NR_write: 2052 p = lock_user(arg2, arg3, 1); 2053 ret = get_errno(write(arg1, p, arg3)); 2054 unlock_user(p, arg2, 0); 2055 break; 2056 case TARGET_NR_open: 2057 p = lock_user_string(arg1); 2058 ret = get_errno(open(path(p), 2059 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2060 arg3)); 2061 unlock_user(p, arg1, 0); 2062 break; 2063 case TARGET_NR_close: 2064 ret = get_errno(close(arg1)); 2065 break; 2066 case TARGET_NR_brk: 2067 ret = do_brk(arg1); 2068 break; 2069 case TARGET_NR_fork: 2070 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2071 break; 2072 #ifdef TARGET_NR_waitpid 2073 case TARGET_NR_waitpid: 2074 { 2075 int status; 2076 ret = get_errno(waitpid(arg1, &status, arg3)); 2077 if (!is_error(ret) && arg2) 2078 tput32(arg2, status); 2079 } 2080 break; 2081 #endif 2082 #ifdef TARGET_NR_creat /* not on alpha */ 2083 case TARGET_NR_creat: 2084 p = lock_user_string(arg1); 2085 ret = get_errno(creat(p, arg2)); 2086 unlock_user(p, arg1, 0); 2087 break; 2088 #endif 2089 case TARGET_NR_link: 2090 { 2091 void * p2; 2092 p = lock_user_string(arg1); 2093 p2 = lock_user_string(arg2); 2094 ret = get_errno(link(p, p2)); 2095 unlock_user(p2, arg2, 0); 2096 unlock_user(p, arg1, 0); 2097 } 2098 break; 2099 case TARGET_NR_unlink: 2100 p = lock_user_string(arg1); 2101 ret = get_errno(unlink(p)); 2102 unlock_user(p, arg1, 0); 2103 break; 2104 case TARGET_NR_execve: 2105 { 2106 char **argp, **envp; 2107 int argc, envc; 2108 target_ulong gp; 2109 target_ulong guest_argp; 2110 target_ulong guest_envp; 2111 target_ulong addr; 2112 char **q; 2113 2114 argc = 0; 2115 guest_argp = arg2; 2116 for (gp = guest_argp; tgetl(gp); gp++) 2117 argc++; 2118 envc = 0; 2119 guest_envp = arg3; 2120 for (gp = guest_envp; tgetl(gp); gp++) 2121 envc++; 2122 2123 argp = alloca((argc + 1) * sizeof(void *)); 2124 envp = alloca((envc + 1) * sizeof(void *)); 2125 2126 for (gp = guest_argp, q = argp; ; 2127 gp += sizeof(target_ulong), q++) { 2128 addr = tgetl(gp); 2129 if (!addr) 2130 break; 2131 *q = lock_user_string(addr); 2132 } 2133 *q = NULL; 2134 2135 for (gp = guest_envp, q = envp; ; 2136 gp += sizeof(target_ulong), q++) { 2137 addr = tgetl(gp); 2138 if (!addr) 2139 break; 2140 *q = lock_user_string(addr); 2141 } 2142 *q = NULL; 2143 2144 p = lock_user_string(arg1); 2145 ret = get_errno(execve(p, argp, envp)); 2146 unlock_user(p, arg1, 0); 2147 2148 for (gp = guest_argp, q = argp; *q; 2149 gp += sizeof(target_ulong), q++) { 2150 addr = tgetl(gp); 2151 unlock_user(*q, addr, 0); 2152 } 2153 for (gp = guest_envp, q = envp; *q; 2154 gp += sizeof(target_ulong), q++) { 2155 addr = tgetl(gp); 2156 unlock_user(*q, addr, 0); 2157 } 2158 } 2159 break; 2160 case TARGET_NR_chdir: 2161 p = lock_user_string(arg1); 2162 ret = get_errno(chdir(p)); 2163 unlock_user(p, arg1, 0); 2164 break; 2165 #ifdef TARGET_NR_time 2166 case TARGET_NR_time: 2167 { 2168 time_t host_time; 2169 ret = get_errno(time(&host_time)); 2170 if (!is_error(ret) && arg1) 2171 tputl(arg1, host_time); 2172 } 2173 break; 2174 #endif 2175 case TARGET_NR_mknod: 2176 p = lock_user_string(arg1); 2177 ret = get_errno(mknod(p, arg2, arg3)); 2178 unlock_user(p, arg1, 0); 2179 break; 2180 case TARGET_NR_chmod: 2181 p = lock_user_string(arg1); 2182 ret = get_errno(chmod(p, arg2)); 2183 unlock_user(p, arg1, 0); 2184 break; 2185 #ifdef TARGET_NR_break 2186 case TARGET_NR_break: 2187 goto unimplemented; 2188 #endif 2189 #ifdef TARGET_NR_oldstat 2190 case TARGET_NR_oldstat: 2191 goto unimplemented; 2192 #endif 2193 case TARGET_NR_lseek: 2194 ret = get_errno(lseek(arg1, arg2, arg3)); 2195 break; 2196 #ifdef TARGET_NR_getxpid 2197 case TARGET_NR_getxpid: 2198 #else 2199 case TARGET_NR_getpid: 2200 #endif 2201 ret = get_errno(getpid()); 2202 break; 2203 case TARGET_NR_mount: 2204 { 2205 /* need to look at the data field */ 2206 void *p2, *p3; 2207 p = lock_user_string(arg1); 2208 p2 = lock_user_string(arg2); 2209 p3 = lock_user_string(arg3); 2210 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2211 unlock_user(p, arg1, 0); 2212 unlock_user(p2, arg2, 0); 2213 unlock_user(p3, arg3, 0); 2214 break; 2215 } 2216 #ifdef TARGET_NR_umount 2217 case TARGET_NR_umount: 2218 p = lock_user_string(arg1); 2219 ret = get_errno(umount(p)); 2220 unlock_user(p, arg1, 0); 2221 break; 2222 #endif 2223 #ifdef TARGET_NR_stime /* not on alpha */ 2224 case TARGET_NR_stime: 2225 { 2226 time_t host_time; 2227 host_time = tgetl(arg1); 2228 ret = get_errno(stime(&host_time)); 2229 } 2230 break; 2231 #endif 2232 case TARGET_NR_ptrace: 2233 goto unimplemented; 2234 #ifdef TARGET_NR_alarm /* not on alpha */ 2235 case TARGET_NR_alarm: 2236 ret = alarm(arg1); 2237 break; 2238 #endif 2239 #ifdef TARGET_NR_oldfstat 2240 case TARGET_NR_oldfstat: 2241 goto unimplemented; 2242 #endif 2243 #ifdef TARGET_NR_pause /* not on alpha */ 2244 case TARGET_NR_pause: 2245 ret = get_errno(pause()); 2246 break; 2247 #endif 2248 #ifdef TARGET_NR_utime 2249 case TARGET_NR_utime: 2250 { 2251 struct utimbuf tbuf, *host_tbuf; 2252 struct target_utimbuf *target_tbuf; 2253 if (arg2) { 2254 lock_user_struct(target_tbuf, arg2, 1); 2255 tbuf.actime = tswapl(target_tbuf->actime); 2256 tbuf.modtime = tswapl(target_tbuf->modtime); 2257 unlock_user_struct(target_tbuf, arg2, 0); 2258 host_tbuf = &tbuf; 2259 } else { 2260 host_tbuf = NULL; 2261 } 2262 p = lock_user_string(arg1); 2263 ret = get_errno(utime(p, host_tbuf)); 2264 unlock_user(p, arg1, 0); 2265 } 2266 break; 2267 #endif 2268 case TARGET_NR_utimes: 2269 { 2270 struct timeval *tvp, tv[2]; 2271 if (arg2) { 2272 target_to_host_timeval(&tv[0], arg2); 2273 target_to_host_timeval(&tv[1], 2274 arg2 + sizeof (struct target_timeval)); 2275 tvp = tv; 2276 } else { 2277 tvp = NULL; 2278 } 2279 p = lock_user_string(arg1); 2280 ret = get_errno(utimes(p, tvp)); 2281 unlock_user(p, arg1, 0); 2282 } 2283 break; 2284 #ifdef TARGET_NR_stty 2285 case TARGET_NR_stty: 2286 goto unimplemented; 2287 #endif 2288 #ifdef TARGET_NR_gtty 2289 case TARGET_NR_gtty: 2290 goto unimplemented; 2291 #endif 2292 case TARGET_NR_access: 2293 p = lock_user_string(arg1); 2294 ret = get_errno(access(p, arg2)); 2295 unlock_user(p, arg1, 0); 2296 break; 2297 #ifdef TARGET_NR_nice /* not on alpha */ 2298 case TARGET_NR_nice: 2299 ret = get_errno(nice(arg1)); 2300 break; 2301 #endif 2302 #ifdef TARGET_NR_ftime 2303 case TARGET_NR_ftime: 2304 goto unimplemented; 2305 #endif 2306 case TARGET_NR_sync: 2307 sync(); 2308 ret = 0; 2309 break; 2310 case TARGET_NR_kill: 2311 ret = get_errno(kill(arg1, arg2)); 2312 break; 2313 case TARGET_NR_rename: 2314 { 2315 void *p2; 2316 p = lock_user_string(arg1); 2317 p2 = lock_user_string(arg2); 2318 ret = get_errno(rename(p, p2)); 2319 unlock_user(p2, arg2, 0); 2320 unlock_user(p, arg1, 0); 2321 } 2322 break; 2323 case TARGET_NR_mkdir: 2324 p = lock_user_string(arg1); 2325 ret = get_errno(mkdir(p, arg2)); 2326 unlock_user(p, arg1, 0); 2327 break; 2328 case TARGET_NR_rmdir: 2329 p = lock_user_string(arg1); 2330 ret = get_errno(rmdir(p)); 2331 unlock_user(p, arg1, 0); 2332 break; 2333 case TARGET_NR_dup: 2334 ret = get_errno(dup(arg1)); 2335 break; 2336 case TARGET_NR_pipe: 2337 { 2338 int host_pipe[2]; 2339 ret = get_errno(pipe(host_pipe)); 2340 if (!is_error(ret)) { 2341 tput32(arg1, host_pipe[0]); 2342 tput32(arg1 + 4, host_pipe[1]); 2343 } 2344 } 2345 break; 2346 case TARGET_NR_times: 2347 { 2348 struct target_tms *tmsp; 2349 struct tms tms; 2350 ret = get_errno(times(&tms)); 2351 if (arg1) { 2352 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2353 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2354 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2355 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2356 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2357 } 2358 if (!is_error(ret)) 2359 ret = host_to_target_clock_t(ret); 2360 } 2361 break; 2362 #ifdef TARGET_NR_prof 2363 case TARGET_NR_prof: 2364 goto unimplemented; 2365 #endif 2366 #ifdef TARGET_NR_signal 2367 case TARGET_NR_signal: 2368 goto unimplemented; 2369 #endif 2370 case TARGET_NR_acct: 2371 p = lock_user_string(arg1); 2372 ret = get_errno(acct(path(p))); 2373 unlock_user(p, arg1, 0); 2374 break; 2375 #ifdef TARGET_NR_umount2 /* not on alpha */ 2376 case TARGET_NR_umount2: 2377 p = lock_user_string(arg1); 2378 ret = get_errno(umount2(p, arg2)); 2379 unlock_user(p, arg1, 0); 2380 break; 2381 #endif 2382 #ifdef TARGET_NR_lock 2383 case TARGET_NR_lock: 2384 goto unimplemented; 2385 #endif 2386 case TARGET_NR_ioctl: 2387 ret = do_ioctl(arg1, arg2, arg3); 2388 break; 2389 case TARGET_NR_fcntl: 2390 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2391 break; 2392 #ifdef TARGET_NR_mpx 2393 case TARGET_NR_mpx: 2394 goto unimplemented; 2395 #endif 2396 case TARGET_NR_setpgid: 2397 ret = get_errno(setpgid(arg1, arg2)); 2398 break; 2399 #ifdef TARGET_NR_ulimit 2400 case TARGET_NR_ulimit: 2401 goto unimplemented; 2402 #endif 2403 #ifdef TARGET_NR_oldolduname 2404 case TARGET_NR_oldolduname: 2405 goto unimplemented; 2406 #endif 2407 case TARGET_NR_umask: 2408 ret = get_errno(umask(arg1)); 2409 break; 2410 case TARGET_NR_chroot: 2411 p = lock_user_string(arg1); 2412 ret = get_errno(chroot(p)); 2413 unlock_user(p, arg1, 0); 2414 break; 2415 case TARGET_NR_ustat: 2416 goto unimplemented; 2417 case TARGET_NR_dup2: 2418 ret = get_errno(dup2(arg1, arg2)); 2419 break; 2420 #ifdef TARGET_NR_getppid /* not on alpha */ 2421 case TARGET_NR_getppid: 2422 ret = get_errno(getppid()); 2423 break; 2424 #endif 2425 case TARGET_NR_getpgrp: 2426 ret = get_errno(getpgrp()); 2427 break; 2428 case TARGET_NR_setsid: 2429 ret = get_errno(setsid()); 2430 break; 2431 #ifdef TARGET_NR_sigaction 2432 case TARGET_NR_sigaction: 2433 { 2434 #if !defined(TARGET_MIPS) 2435 struct target_old_sigaction *old_act; 2436 struct target_sigaction act, oact, *pact; 2437 if (arg2) { 2438 lock_user_struct(old_act, arg2, 1); 2439 act._sa_handler = old_act->_sa_handler; 2440 target_siginitset(&act.sa_mask, old_act->sa_mask); 2441 act.sa_flags = old_act->sa_flags; 2442 act.sa_restorer = old_act->sa_restorer; 2443 unlock_user_struct(old_act, arg2, 0); 2444 pact = &act; 2445 } else { 2446 pact = NULL; 2447 } 2448 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2449 if (!is_error(ret) && arg3) { 2450 lock_user_struct(old_act, arg3, 0); 2451 old_act->_sa_handler = oact._sa_handler; 2452 old_act->sa_mask = oact.sa_mask.sig[0]; 2453 old_act->sa_flags = oact.sa_flags; 2454 old_act->sa_restorer = oact.sa_restorer; 2455 unlock_user_struct(old_act, arg3, 1); 2456 } 2457 #else 2458 struct target_sigaction act, oact, *pact, *old_act; 2459 2460 if (arg2) { 2461 lock_user_struct(old_act, arg2, 1); 2462 act._sa_handler = old_act->_sa_handler; 2463 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2464 act.sa_flags = old_act->sa_flags; 2465 unlock_user_struct(old_act, arg2, 0); 2466 pact = &act; 2467 } else { 2468 pact = NULL; 2469 } 2470 2471 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2472 2473 if (!is_error(ret) && arg3) { 2474 lock_user_struct(old_act, arg3, 0); 2475 old_act->_sa_handler = oact._sa_handler; 2476 old_act->sa_flags = oact.sa_flags; 2477 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 2478 old_act->sa_mask.sig[1] = 0; 2479 old_act->sa_mask.sig[2] = 0; 2480 old_act->sa_mask.sig[3] = 0; 2481 unlock_user_struct(old_act, arg3, 1); 2482 } 2483 #endif 2484 } 2485 break; 2486 #endif 2487 case TARGET_NR_rt_sigaction: 2488 { 2489 struct target_sigaction *act; 2490 struct target_sigaction *oact; 2491 2492 if (arg2) 2493 lock_user_struct(act, arg2, 1); 2494 else 2495 act = NULL; 2496 if (arg3) 2497 lock_user_struct(oact, arg3, 0); 2498 else 2499 oact = NULL; 2500 ret = get_errno(do_sigaction(arg1, act, oact)); 2501 if (arg2) 2502 unlock_user_struct(act, arg2, 0); 2503 if (arg3) 2504 unlock_user_struct(oact, arg3, 1); 2505 } 2506 break; 2507 #ifdef TARGET_NR_sgetmask /* not on alpha */ 2508 case TARGET_NR_sgetmask: 2509 { 2510 sigset_t cur_set; 2511 target_ulong target_set; 2512 sigprocmask(0, NULL, &cur_set); 2513 host_to_target_old_sigset(&target_set, &cur_set); 2514 ret = target_set; 2515 } 2516 break; 2517 #endif 2518 #ifdef TARGET_NR_ssetmask /* not on alpha */ 2519 case TARGET_NR_ssetmask: 2520 { 2521 sigset_t set, oset, cur_set; 2522 target_ulong target_set = arg1; 2523 sigprocmask(0, NULL, &cur_set); 2524 target_to_host_old_sigset(&set, &target_set); 2525 sigorset(&set, &set, &cur_set); 2526 sigprocmask(SIG_SETMASK, &set, &oset); 2527 host_to_target_old_sigset(&target_set, &oset); 2528 ret = target_set; 2529 } 2530 break; 2531 #endif 2532 #ifdef TARGET_NR_sigprocmask 2533 case TARGET_NR_sigprocmask: 2534 { 2535 int how = arg1; 2536 sigset_t set, oldset, *set_ptr; 2537 2538 if (arg2) { 2539 switch(how) { 2540 case TARGET_SIG_BLOCK: 2541 how = SIG_BLOCK; 2542 break; 2543 case TARGET_SIG_UNBLOCK: 2544 how = SIG_UNBLOCK; 2545 break; 2546 case TARGET_SIG_SETMASK: 2547 how = SIG_SETMASK; 2548 break; 2549 default: 2550 ret = -EINVAL; 2551 goto fail; 2552 } 2553 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2554 target_to_host_old_sigset(&set, p); 2555 unlock_user(p, arg2, 0); 2556 set_ptr = &set; 2557 } else { 2558 how = 0; 2559 set_ptr = NULL; 2560 } 2561 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 2562 if (!is_error(ret) && arg3) { 2563 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2564 host_to_target_old_sigset(p, &oldset); 2565 unlock_user(p, arg3, sizeof(target_sigset_t)); 2566 } 2567 } 2568 break; 2569 #endif 2570 case TARGET_NR_rt_sigprocmask: 2571 { 2572 int how = arg1; 2573 sigset_t set, oldset, *set_ptr; 2574 2575 if (arg2) { 2576 switch(how) { 2577 case TARGET_SIG_BLOCK: 2578 how = SIG_BLOCK; 2579 break; 2580 case TARGET_SIG_UNBLOCK: 2581 how = SIG_UNBLOCK; 2582 break; 2583 case TARGET_SIG_SETMASK: 2584 how = SIG_SETMASK; 2585 break; 2586 default: 2587 ret = -EINVAL; 2588 goto fail; 2589 } 2590 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2591 target_to_host_sigset(&set, p); 2592 unlock_user(p, arg2, 0); 2593 set_ptr = &set; 2594 } else { 2595 how = 0; 2596 set_ptr = NULL; 2597 } 2598 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 2599 if (!is_error(ret) && arg3) { 2600 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2601 host_to_target_sigset(p, &oldset); 2602 unlock_user(p, arg3, sizeof(target_sigset_t)); 2603 } 2604 } 2605 break; 2606 #ifdef TARGET_NR_sigpending 2607 case TARGET_NR_sigpending: 2608 { 2609 sigset_t set; 2610 ret = get_errno(sigpending(&set)); 2611 if (!is_error(ret)) { 2612 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2613 host_to_target_old_sigset(p, &set); 2614 unlock_user(p, arg1, sizeof(target_sigset_t)); 2615 } 2616 } 2617 break; 2618 #endif 2619 case TARGET_NR_rt_sigpending: 2620 { 2621 sigset_t set; 2622 ret = get_errno(sigpending(&set)); 2623 if (!is_error(ret)) { 2624 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2625 host_to_target_sigset(p, &set); 2626 unlock_user(p, arg1, sizeof(target_sigset_t)); 2627 } 2628 } 2629 break; 2630 #ifdef TARGET_NR_sigsuspend 2631 case TARGET_NR_sigsuspend: 2632 { 2633 sigset_t set; 2634 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2635 target_to_host_old_sigset(&set, p); 2636 unlock_user(p, arg1, 0); 2637 ret = get_errno(sigsuspend(&set)); 2638 } 2639 break; 2640 #endif 2641 case TARGET_NR_rt_sigsuspend: 2642 { 2643 sigset_t set; 2644 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2645 target_to_host_sigset(&set, p); 2646 unlock_user(p, arg1, 0); 2647 ret = get_errno(sigsuspend(&set)); 2648 } 2649 break; 2650 case TARGET_NR_rt_sigtimedwait: 2651 { 2652 sigset_t set; 2653 struct timespec uts, *puts; 2654 siginfo_t uinfo; 2655 2656 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2657 target_to_host_sigset(&set, p); 2658 unlock_user(p, arg1, 0); 2659 if (arg3) { 2660 puts = &uts; 2661 target_to_host_timespec(puts, arg3); 2662 } else { 2663 puts = NULL; 2664 } 2665 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 2666 if (!is_error(ret) && arg2) { 2667 p = lock_user(arg2, sizeof(target_sigset_t), 0); 2668 host_to_target_siginfo(p, &uinfo); 2669 unlock_user(p, arg2, sizeof(target_sigset_t)); 2670 } 2671 } 2672 break; 2673 case TARGET_NR_rt_sigqueueinfo: 2674 { 2675 siginfo_t uinfo; 2676 p = lock_user(arg3, sizeof(target_sigset_t), 1); 2677 target_to_host_siginfo(&uinfo, p); 2678 unlock_user(p, arg1, 0); 2679 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 2680 } 2681 break; 2682 #ifdef TARGET_NR_sigreturn 2683 case TARGET_NR_sigreturn: 2684 /* NOTE: ret is eax, so not transcoding must be done */ 2685 ret = do_sigreturn(cpu_env); 2686 break; 2687 #endif 2688 case TARGET_NR_rt_sigreturn: 2689 /* NOTE: ret is eax, so not transcoding must be done */ 2690 ret = do_rt_sigreturn(cpu_env); 2691 break; 2692 case TARGET_NR_sethostname: 2693 p = lock_user_string(arg1); 2694 ret = get_errno(sethostname(p, arg2)); 2695 unlock_user(p, arg1, 0); 2696 break; 2697 case TARGET_NR_setrlimit: 2698 { 2699 /* XXX: convert resource ? */ 2700 int resource = arg1; 2701 struct target_rlimit *target_rlim; 2702 struct rlimit rlim; 2703 lock_user_struct(target_rlim, arg2, 1); 2704 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2705 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2706 unlock_user_struct(target_rlim, arg2, 0); 2707 ret = get_errno(setrlimit(resource, &rlim)); 2708 } 2709 break; 2710 case TARGET_NR_getrlimit: 2711 { 2712 /* XXX: convert resource ? */ 2713 int resource = arg1; 2714 struct target_rlimit *target_rlim; 2715 struct rlimit rlim; 2716 2717 ret = get_errno(getrlimit(resource, &rlim)); 2718 if (!is_error(ret)) { 2719 lock_user_struct(target_rlim, arg2, 0); 2720 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 2721 rlim.rlim_max = tswapl(target_rlim->rlim_max); 2722 unlock_user_struct(target_rlim, arg2, 1); 2723 } 2724 } 2725 break; 2726 case TARGET_NR_getrusage: 2727 { 2728 struct rusage rusage; 2729 ret = get_errno(getrusage(arg1, &rusage)); 2730 if (!is_error(ret)) { 2731 host_to_target_rusage(arg2, &rusage); 2732 } 2733 } 2734 break; 2735 case TARGET_NR_gettimeofday: 2736 { 2737 struct timeval tv; 2738 ret = get_errno(gettimeofday(&tv, NULL)); 2739 if (!is_error(ret)) { 2740 host_to_target_timeval(arg1, &tv); 2741 } 2742 } 2743 break; 2744 case TARGET_NR_settimeofday: 2745 { 2746 struct timeval tv; 2747 target_to_host_timeval(&tv, arg1); 2748 ret = get_errno(settimeofday(&tv, NULL)); 2749 } 2750 break; 2751 #ifdef TARGET_NR_select 2752 case TARGET_NR_select: 2753 { 2754 struct target_sel_arg_struct *sel; 2755 target_ulong inp, outp, exp, tvp; 2756 long nsel; 2757 2758 lock_user_struct(sel, arg1, 1); 2759 nsel = tswapl(sel->n); 2760 inp = tswapl(sel->inp); 2761 outp = tswapl(sel->outp); 2762 exp = tswapl(sel->exp); 2763 tvp = tswapl(sel->tvp); 2764 unlock_user_struct(sel, arg1, 0); 2765 ret = do_select(nsel, inp, outp, exp, tvp); 2766 } 2767 break; 2768 #endif 2769 case TARGET_NR_symlink: 2770 { 2771 void *p2; 2772 p = lock_user_string(arg1); 2773 p2 = lock_user_string(arg2); 2774 ret = get_errno(symlink(p, p2)); 2775 unlock_user(p2, arg2, 0); 2776 unlock_user(p, arg1, 0); 2777 } 2778 break; 2779 #ifdef TARGET_NR_oldlstat 2780 case TARGET_NR_oldlstat: 2781 goto unimplemented; 2782 #endif 2783 case TARGET_NR_readlink: 2784 { 2785 void *p2; 2786 p = lock_user_string(arg1); 2787 p2 = lock_user(arg2, arg3, 0); 2788 ret = get_errno(readlink(path(p), p2, arg3)); 2789 unlock_user(p2, arg2, ret); 2790 unlock_user(p, arg1, 0); 2791 } 2792 break; 2793 #ifdef TARGET_NR_uselib 2794 case TARGET_NR_uselib: 2795 goto unimplemented; 2796 #endif 2797 #ifdef TARGET_NR_swapon 2798 case TARGET_NR_swapon: 2799 p = lock_user_string(arg1); 2800 ret = get_errno(swapon(p, arg2)); 2801 unlock_user(p, arg1, 0); 2802 break; 2803 #endif 2804 case TARGET_NR_reboot: 2805 goto unimplemented; 2806 #ifdef TARGET_NR_readdir 2807 case TARGET_NR_readdir: 2808 goto unimplemented; 2809 #endif 2810 #ifdef TARGET_NR_mmap 2811 case TARGET_NR_mmap: 2812 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 2813 { 2814 target_ulong *v; 2815 target_ulong v1, v2, v3, v4, v5, v6; 2816 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 2817 v1 = tswapl(v[0]); 2818 v2 = tswapl(v[1]); 2819 v3 = tswapl(v[2]); 2820 v4 = tswapl(v[3]); 2821 v5 = tswapl(v[4]); 2822 v6 = tswapl(v[5]); 2823 unlock_user(v, arg1, 0); 2824 ret = get_errno(target_mmap(v1, v2, v3, 2825 target_to_host_bitmask(v4, mmap_flags_tbl), 2826 v5, v6)); 2827 } 2828 #else 2829 ret = get_errno(target_mmap(arg1, arg2, arg3, 2830 target_to_host_bitmask(arg4, mmap_flags_tbl), 2831 arg5, 2832 arg6)); 2833 #endif 2834 break; 2835 #endif 2836 #ifdef TARGET_NR_mmap2 2837 case TARGET_NR_mmap2: 2838 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 2839 #define MMAP_SHIFT 12 2840 #else 2841 #define MMAP_SHIFT TARGET_PAGE_BITS 2842 #endif 2843 ret = get_errno(target_mmap(arg1, arg2, arg3, 2844 target_to_host_bitmask(arg4, mmap_flags_tbl), 2845 arg5, 2846 arg6 << MMAP_SHIFT)); 2847 break; 2848 #endif 2849 case TARGET_NR_munmap: 2850 ret = get_errno(target_munmap(arg1, arg2)); 2851 break; 2852 case TARGET_NR_mprotect: 2853 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 2854 break; 2855 #ifdef TARGET_NR_mremap 2856 case TARGET_NR_mremap: 2857 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 2858 break; 2859 #endif 2860 /* ??? msync/mlock/munlock are broken for softmmu. */ 2861 #ifdef TARGET_NR_msync 2862 case TARGET_NR_msync: 2863 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 2864 break; 2865 #endif 2866 #ifdef TARGET_NR_mlock 2867 case TARGET_NR_mlock: 2868 ret = get_errno(mlock(g2h(arg1), arg2)); 2869 break; 2870 #endif 2871 #ifdef TARGET_NR_munlock 2872 case TARGET_NR_munlock: 2873 ret = get_errno(munlock(g2h(arg1), arg2)); 2874 break; 2875 #endif 2876 #ifdef TARGET_NR_mlockall 2877 case TARGET_NR_mlockall: 2878 ret = get_errno(mlockall(arg1)); 2879 break; 2880 #endif 2881 #ifdef TARGET_NR_munlockall 2882 case TARGET_NR_munlockall: 2883 ret = get_errno(munlockall()); 2884 break; 2885 #endif 2886 case TARGET_NR_truncate: 2887 p = lock_user_string(arg1); 2888 ret = get_errno(truncate(p, arg2)); 2889 unlock_user(p, arg1, 0); 2890 break; 2891 case TARGET_NR_ftruncate: 2892 ret = get_errno(ftruncate(arg1, arg2)); 2893 break; 2894 case TARGET_NR_fchmod: 2895 ret = get_errno(fchmod(arg1, arg2)); 2896 break; 2897 case TARGET_NR_getpriority: 2898 ret = get_errno(getpriority(arg1, arg2)); 2899 break; 2900 case TARGET_NR_setpriority: 2901 ret = get_errno(setpriority(arg1, arg2, arg3)); 2902 break; 2903 #ifdef TARGET_NR_profil 2904 case TARGET_NR_profil: 2905 goto unimplemented; 2906 #endif 2907 case TARGET_NR_statfs: 2908 p = lock_user_string(arg1); 2909 ret = get_errno(statfs(path(p), &stfs)); 2910 unlock_user(p, arg1, 0); 2911 convert_statfs: 2912 if (!is_error(ret)) { 2913 struct target_statfs *target_stfs; 2914 2915 lock_user_struct(target_stfs, arg2, 0); 2916 /* ??? put_user is probably wrong. */ 2917 put_user(stfs.f_type, &target_stfs->f_type); 2918 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2919 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2920 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2921 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2922 put_user(stfs.f_files, &target_stfs->f_files); 2923 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2924 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2925 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2926 unlock_user_struct(target_stfs, arg2, 1); 2927 } 2928 break; 2929 case TARGET_NR_fstatfs: 2930 ret = get_errno(fstatfs(arg1, &stfs)); 2931 goto convert_statfs; 2932 #ifdef TARGET_NR_statfs64 2933 case TARGET_NR_statfs64: 2934 p = lock_user_string(arg1); 2935 ret = get_errno(statfs(path(p), &stfs)); 2936 unlock_user(p, arg1, 0); 2937 convert_statfs64: 2938 if (!is_error(ret)) { 2939 struct target_statfs64 *target_stfs; 2940 2941 lock_user_struct(target_stfs, arg3, 0); 2942 /* ??? put_user is probably wrong. */ 2943 put_user(stfs.f_type, &target_stfs->f_type); 2944 put_user(stfs.f_bsize, &target_stfs->f_bsize); 2945 put_user(stfs.f_blocks, &target_stfs->f_blocks); 2946 put_user(stfs.f_bfree, &target_stfs->f_bfree); 2947 put_user(stfs.f_bavail, &target_stfs->f_bavail); 2948 put_user(stfs.f_files, &target_stfs->f_files); 2949 put_user(stfs.f_ffree, &target_stfs->f_ffree); 2950 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 2951 put_user(stfs.f_namelen, &target_stfs->f_namelen); 2952 unlock_user_struct(target_stfs, arg3, 0); 2953 } 2954 break; 2955 case TARGET_NR_fstatfs64: 2956 ret = get_errno(fstatfs(arg1, &stfs)); 2957 goto convert_statfs64; 2958 #endif 2959 #ifdef TARGET_NR_ioperm 2960 case TARGET_NR_ioperm: 2961 goto unimplemented; 2962 #endif 2963 #ifdef TARGET_NR_socketcall 2964 case TARGET_NR_socketcall: 2965 ret = do_socketcall(arg1, arg2); 2966 break; 2967 #endif 2968 #ifdef TARGET_NR_accept 2969 case TARGET_NR_accept: 2970 ret = do_accept(arg1, arg2, arg3); 2971 break; 2972 #endif 2973 #ifdef TARGET_NR_bind 2974 case TARGET_NR_bind: 2975 ret = do_bind(arg1, arg2, arg3); 2976 break; 2977 #endif 2978 #ifdef TARGET_NR_connect 2979 case TARGET_NR_connect: 2980 ret = do_connect(arg1, arg2, arg3); 2981 break; 2982 #endif 2983 #ifdef TARGET_NR_getpeername 2984 case TARGET_NR_getpeername: 2985 ret = do_getpeername(arg1, arg2, arg3); 2986 break; 2987 #endif 2988 #ifdef TARGET_NR_getsockname 2989 case TARGET_NR_getsockname: 2990 ret = do_getsockname(arg1, arg2, arg3); 2991 break; 2992 #endif 2993 #ifdef TARGET_NR_getsockopt 2994 case TARGET_NR_getsockopt: 2995 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 2996 break; 2997 #endif 2998 #ifdef TARGET_NR_listen 2999 case TARGET_NR_listen: 3000 ret = get_errno(listen(arg1, arg2)); 3001 break; 3002 #endif 3003 #ifdef TARGET_NR_recv 3004 case TARGET_NR_recv: 3005 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3006 break; 3007 #endif 3008 #ifdef TARGET_NR_recvfrom 3009 case TARGET_NR_recvfrom: 3010 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3011 break; 3012 #endif 3013 #ifdef TARGET_NR_recvmsg 3014 case TARGET_NR_recvmsg: 3015 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3016 break; 3017 #endif 3018 #ifdef TARGET_NR_send 3019 case TARGET_NR_send: 3020 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3021 break; 3022 #endif 3023 #ifdef TARGET_NR_sendmsg 3024 case TARGET_NR_sendmsg: 3025 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3026 break; 3027 #endif 3028 #ifdef TARGET_NR_sendto 3029 case TARGET_NR_sendto: 3030 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3031 break; 3032 #endif 3033 #ifdef TARGET_NR_shutdown 3034 case TARGET_NR_shutdown: 3035 ret = get_errno(shutdown(arg1, arg2)); 3036 break; 3037 #endif 3038 #ifdef TARGET_NR_socket 3039 case TARGET_NR_socket: 3040 ret = do_socket(arg1, arg2, arg3); 3041 break; 3042 #endif 3043 #ifdef TARGET_NR_socketpair 3044 case TARGET_NR_socketpair: 3045 ret = do_socketpair(arg1, arg2, arg3, arg4); 3046 break; 3047 #endif 3048 #ifdef TARGET_NR_setsockopt 3049 case TARGET_NR_setsockopt: 3050 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3051 break; 3052 #endif 3053 3054 case TARGET_NR_syslog: 3055 p = lock_user_string(arg2); 3056 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3057 unlock_user(p, arg2, 0); 3058 break; 3059 3060 case TARGET_NR_setitimer: 3061 { 3062 struct itimerval value, ovalue, *pvalue; 3063 3064 if (arg2) { 3065 pvalue = &value; 3066 target_to_host_timeval(&pvalue->it_interval, 3067 arg2); 3068 target_to_host_timeval(&pvalue->it_value, 3069 arg2 + sizeof(struct target_timeval)); 3070 } else { 3071 pvalue = NULL; 3072 } 3073 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3074 if (!is_error(ret) && arg3) { 3075 host_to_target_timeval(arg3, 3076 &ovalue.it_interval); 3077 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3078 &ovalue.it_value); 3079 } 3080 } 3081 break; 3082 case TARGET_NR_getitimer: 3083 { 3084 struct itimerval value; 3085 3086 ret = get_errno(getitimer(arg1, &value)); 3087 if (!is_error(ret) && arg2) { 3088 host_to_target_timeval(arg2, 3089 &value.it_interval); 3090 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3091 &value.it_value); 3092 } 3093 } 3094 break; 3095 case TARGET_NR_stat: 3096 p = lock_user_string(arg1); 3097 ret = get_errno(stat(path(p), &st)); 3098 unlock_user(p, arg1, 0); 3099 goto do_stat; 3100 case TARGET_NR_lstat: 3101 p = lock_user_string(arg1); 3102 ret = get_errno(lstat(path(p), &st)); 3103 unlock_user(p, arg1, 0); 3104 goto do_stat; 3105 case TARGET_NR_fstat: 3106 { 3107 ret = get_errno(fstat(arg1, &st)); 3108 do_stat: 3109 if (!is_error(ret)) { 3110 struct target_stat *target_st; 3111 3112 lock_user_struct(target_st, arg2, 0); 3113 target_st->st_dev = tswap16(st.st_dev); 3114 target_st->st_ino = tswapl(st.st_ino); 3115 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3116 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3117 target_st->st_uid = tswap32(st.st_uid); 3118 target_st->st_gid = tswap32(st.st_gid); 3119 #else 3120 target_st->st_mode = tswap16(st.st_mode); 3121 target_st->st_uid = tswap16(st.st_uid); 3122 target_st->st_gid = tswap16(st.st_gid); 3123 #endif 3124 target_st->st_nlink = tswap16(st.st_nlink); 3125 target_st->st_rdev = tswap16(st.st_rdev); 3126 target_st->st_size = tswapl(st.st_size); 3127 target_st->st_blksize = tswapl(st.st_blksize); 3128 target_st->st_blocks = tswapl(st.st_blocks); 3129 target_st->target_st_atime = tswapl(st.st_atime); 3130 target_st->target_st_mtime = tswapl(st.st_mtime); 3131 target_st->target_st_ctime = tswapl(st.st_ctime); 3132 unlock_user_struct(target_st, arg2, 1); 3133 } 3134 } 3135 break; 3136 #ifdef TARGET_NR_olduname 3137 case TARGET_NR_olduname: 3138 goto unimplemented; 3139 #endif 3140 #ifdef TARGET_NR_iopl 3141 case TARGET_NR_iopl: 3142 goto unimplemented; 3143 #endif 3144 case TARGET_NR_vhangup: 3145 ret = get_errno(vhangup()); 3146 break; 3147 #ifdef TARGET_NR_idle 3148 case TARGET_NR_idle: 3149 goto unimplemented; 3150 #endif 3151 #ifdef TARGET_NR_syscall 3152 case TARGET_NR_syscall: 3153 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3154 break; 3155 #endif 3156 case TARGET_NR_wait4: 3157 { 3158 int status; 3159 target_long status_ptr = arg2; 3160 struct rusage rusage, *rusage_ptr; 3161 target_ulong target_rusage = arg4; 3162 if (target_rusage) 3163 rusage_ptr = &rusage; 3164 else 3165 rusage_ptr = NULL; 3166 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3167 if (!is_error(ret)) { 3168 if (status_ptr) 3169 tputl(status_ptr, status); 3170 if (target_rusage) { 3171 host_to_target_rusage(target_rusage, &rusage); 3172 } 3173 } 3174 } 3175 break; 3176 #ifdef TARGET_NR_swapoff 3177 case TARGET_NR_swapoff: 3178 p = lock_user_string(arg1); 3179 ret = get_errno(swapoff(p)); 3180 unlock_user(p, arg1, 0); 3181 break; 3182 #endif 3183 case TARGET_NR_sysinfo: 3184 { 3185 struct target_sysinfo *target_value; 3186 struct sysinfo value; 3187 ret = get_errno(sysinfo(&value)); 3188 if (!is_error(ret) && arg1) 3189 { 3190 /* ??? __put_user is probably wrong. */ 3191 lock_user_struct(target_value, arg1, 0); 3192 __put_user(value.uptime, &target_value->uptime); 3193 __put_user(value.loads[0], &target_value->loads[0]); 3194 __put_user(value.loads[1], &target_value->loads[1]); 3195 __put_user(value.loads[2], &target_value->loads[2]); 3196 __put_user(value.totalram, &target_value->totalram); 3197 __put_user(value.freeram, &target_value->freeram); 3198 __put_user(value.sharedram, &target_value->sharedram); 3199 __put_user(value.bufferram, &target_value->bufferram); 3200 __put_user(value.totalswap, &target_value->totalswap); 3201 __put_user(value.freeswap, &target_value->freeswap); 3202 __put_user(value.procs, &target_value->procs); 3203 __put_user(value.totalhigh, &target_value->totalhigh); 3204 __put_user(value.freehigh, &target_value->freehigh); 3205 __put_user(value.mem_unit, &target_value->mem_unit); 3206 unlock_user_struct(target_value, arg1, 1); 3207 } 3208 } 3209 break; 3210 #ifdef TARGET_NR_ipc 3211 case TARGET_NR_ipc: 3212 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3213 break; 3214 #endif 3215 case TARGET_NR_fsync: 3216 ret = get_errno(fsync(arg1)); 3217 break; 3218 case TARGET_NR_clone: 3219 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3220 break; 3221 #ifdef __NR_exit_group 3222 /* new thread calls */ 3223 case TARGET_NR_exit_group: 3224 gdb_exit(cpu_env, arg1); 3225 ret = get_errno(exit_group(arg1)); 3226 break; 3227 #endif 3228 case TARGET_NR_setdomainname: 3229 p = lock_user_string(arg1); 3230 ret = get_errno(setdomainname(p, arg2)); 3231 unlock_user(p, arg1, 0); 3232 break; 3233 case TARGET_NR_uname: 3234 /* no need to transcode because we use the linux syscall */ 3235 { 3236 struct new_utsname * buf; 3237 3238 lock_user_struct(buf, arg1, 0); 3239 ret = get_errno(sys_uname(buf)); 3240 if (!is_error(ret)) { 3241 /* Overrite the native machine name with whatever is being 3242 emulated. */ 3243 strcpy (buf->machine, UNAME_MACHINE); 3244 /* Allow the user to override the reported release. */ 3245 if (qemu_uname_release && *qemu_uname_release) 3246 strcpy (buf->release, qemu_uname_release); 3247 } 3248 unlock_user_struct(buf, arg1, 1); 3249 } 3250 break; 3251 #ifdef TARGET_I386 3252 case TARGET_NR_modify_ldt: 3253 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3254 break; 3255 #if !defined(TARGET_X86_64) 3256 case TARGET_NR_vm86old: 3257 goto unimplemented; 3258 case TARGET_NR_vm86: 3259 ret = do_vm86(cpu_env, arg1, arg2); 3260 break; 3261 #endif 3262 #endif 3263 case TARGET_NR_adjtimex: 3264 goto unimplemented; 3265 #ifdef TARGET_NR_create_module 3266 case TARGET_NR_create_module: 3267 #endif 3268 case TARGET_NR_init_module: 3269 case TARGET_NR_delete_module: 3270 #ifdef TARGET_NR_get_kernel_syms 3271 case TARGET_NR_get_kernel_syms: 3272 #endif 3273 goto unimplemented; 3274 case TARGET_NR_quotactl: 3275 goto unimplemented; 3276 case TARGET_NR_getpgid: 3277 ret = get_errno(getpgid(arg1)); 3278 break; 3279 case TARGET_NR_fchdir: 3280 ret = get_errno(fchdir(arg1)); 3281 break; 3282 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 3283 case TARGET_NR_bdflush: 3284 goto unimplemented; 3285 #endif 3286 #ifdef TARGET_NR_sysfs 3287 case TARGET_NR_sysfs: 3288 goto unimplemented; 3289 #endif 3290 case TARGET_NR_personality: 3291 ret = get_errno(personality(arg1)); 3292 break; 3293 #ifdef TARGET_NR_afs_syscall 3294 case TARGET_NR_afs_syscall: 3295 goto unimplemented; 3296 #endif 3297 #ifdef TARGET_NR__llseek /* Not on alpha */ 3298 case TARGET_NR__llseek: 3299 { 3300 #if defined (__x86_64__) 3301 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3302 tput64(arg4, ret); 3303 #else 3304 int64_t res; 3305 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3306 tput64(arg4, res); 3307 #endif 3308 } 3309 break; 3310 #endif 3311 case TARGET_NR_getdents: 3312 #if TARGET_LONG_SIZE != 4 3313 goto unimplemented; 3314 #warning not supported 3315 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3316 { 3317 struct target_dirent *target_dirp; 3318 struct dirent *dirp; 3319 long count = arg3; 3320 3321 dirp = malloc(count); 3322 if (!dirp) 3323 return -ENOMEM; 3324 3325 ret = get_errno(sys_getdents(arg1, dirp, count)); 3326 if (!is_error(ret)) { 3327 struct dirent *de; 3328 struct target_dirent *tde; 3329 int len = ret; 3330 int reclen, treclen; 3331 int count1, tnamelen; 3332 3333 count1 = 0; 3334 de = dirp; 3335 target_dirp = lock_user(arg2, count, 0); 3336 tde = target_dirp; 3337 while (len > 0) { 3338 reclen = de->d_reclen; 3339 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3340 tde->d_reclen = tswap16(treclen); 3341 tde->d_ino = tswapl(de->d_ino); 3342 tde->d_off = tswapl(de->d_off); 3343 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3344 if (tnamelen > 256) 3345 tnamelen = 256; 3346 /* XXX: may not be correct */ 3347 strncpy(tde->d_name, de->d_name, tnamelen); 3348 de = (struct dirent *)((char *)de + reclen); 3349 len -= reclen; 3350 tde = (struct target_dirent *)((char *)tde + treclen); 3351 count1 += treclen; 3352 } 3353 ret = count1; 3354 } 3355 unlock_user(target_dirp, arg2, ret); 3356 free(dirp); 3357 } 3358 #else 3359 { 3360 struct dirent *dirp; 3361 long count = arg3; 3362 3363 dirp = lock_user(arg2, count, 0); 3364 ret = get_errno(sys_getdents(arg1, dirp, count)); 3365 if (!is_error(ret)) { 3366 struct dirent *de; 3367 int len = ret; 3368 int reclen; 3369 de = dirp; 3370 while (len > 0) { 3371 reclen = de->d_reclen; 3372 if (reclen > len) 3373 break; 3374 de->d_reclen = tswap16(reclen); 3375 tswapls(&de->d_ino); 3376 tswapls(&de->d_off); 3377 de = (struct dirent *)((char *)de + reclen); 3378 len -= reclen; 3379 } 3380 } 3381 unlock_user(dirp, arg2, ret); 3382 } 3383 #endif 3384 break; 3385 #ifdef TARGET_NR_getdents64 3386 case TARGET_NR_getdents64: 3387 { 3388 struct dirent64 *dirp; 3389 long count = arg3; 3390 dirp = lock_user(arg2, count, 0); 3391 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3392 if (!is_error(ret)) { 3393 struct dirent64 *de; 3394 int len = ret; 3395 int reclen; 3396 de = dirp; 3397 while (len > 0) { 3398 reclen = de->d_reclen; 3399 if (reclen > len) 3400 break; 3401 de->d_reclen = tswap16(reclen); 3402 tswap64s(&de->d_ino); 3403 tswap64s(&de->d_off); 3404 de = (struct dirent64 *)((char *)de + reclen); 3405 len -= reclen; 3406 } 3407 } 3408 unlock_user(dirp, arg2, ret); 3409 } 3410 break; 3411 #endif /* TARGET_NR_getdents64 */ 3412 #ifdef TARGET_NR__newselect 3413 case TARGET_NR__newselect: 3414 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3415 break; 3416 #endif 3417 #ifdef TARGET_NR_poll 3418 case TARGET_NR_poll: 3419 { 3420 struct target_pollfd *target_pfd; 3421 unsigned int nfds = arg2; 3422 int timeout = arg3; 3423 struct pollfd *pfd; 3424 unsigned int i; 3425 3426 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3427 pfd = alloca(sizeof(struct pollfd) * nfds); 3428 for(i = 0; i < nfds; i++) { 3429 pfd[i].fd = tswap32(target_pfd[i].fd); 3430 pfd[i].events = tswap16(target_pfd[i].events); 3431 } 3432 ret = get_errno(poll(pfd, nfds, timeout)); 3433 if (!is_error(ret)) { 3434 for(i = 0; i < nfds; i++) { 3435 target_pfd[i].revents = tswap16(pfd[i].revents); 3436 } 3437 ret += nfds * (sizeof(struct target_pollfd) 3438 - sizeof(struct pollfd)); 3439 } 3440 unlock_user(target_pfd, arg1, ret); 3441 } 3442 break; 3443 #endif 3444 case TARGET_NR_flock: 3445 /* NOTE: the flock constant seems to be the same for every 3446 Linux platform */ 3447 ret = get_errno(flock(arg1, arg2)); 3448 break; 3449 case TARGET_NR_readv: 3450 { 3451 int count = arg3; 3452 struct iovec *vec; 3453 3454 vec = alloca(count * sizeof(struct iovec)); 3455 lock_iovec(vec, arg2, count, 0); 3456 ret = get_errno(readv(arg1, vec, count)); 3457 unlock_iovec(vec, arg2, count, 1); 3458 } 3459 break; 3460 case TARGET_NR_writev: 3461 { 3462 int count = arg3; 3463 struct iovec *vec; 3464 3465 vec = alloca(count * sizeof(struct iovec)); 3466 lock_iovec(vec, arg2, count, 1); 3467 ret = get_errno(writev(arg1, vec, count)); 3468 unlock_iovec(vec, arg2, count, 0); 3469 } 3470 break; 3471 case TARGET_NR_getsid: 3472 ret = get_errno(getsid(arg1)); 3473 break; 3474 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 3475 case TARGET_NR_fdatasync: 3476 ret = get_errno(fdatasync(arg1)); 3477 break; 3478 #endif 3479 case TARGET_NR__sysctl: 3480 /* We don't implement this, but ENODIR is always a safe 3481 return value. */ 3482 return -ENOTDIR; 3483 case TARGET_NR_sched_setparam: 3484 { 3485 struct sched_param *target_schp; 3486 struct sched_param schp; 3487 3488 lock_user_struct(target_schp, arg2, 1); 3489 schp.sched_priority = tswap32(target_schp->sched_priority); 3490 unlock_user_struct(target_schp, arg2, 0); 3491 ret = get_errno(sched_setparam(arg1, &schp)); 3492 } 3493 break; 3494 case TARGET_NR_sched_getparam: 3495 { 3496 struct sched_param *target_schp; 3497 struct sched_param schp; 3498 ret = get_errno(sched_getparam(arg1, &schp)); 3499 if (!is_error(ret)) { 3500 lock_user_struct(target_schp, arg2, 0); 3501 target_schp->sched_priority = tswap32(schp.sched_priority); 3502 unlock_user_struct(target_schp, arg2, 1); 3503 } 3504 } 3505 break; 3506 case TARGET_NR_sched_setscheduler: 3507 { 3508 struct sched_param *target_schp; 3509 struct sched_param schp; 3510 lock_user_struct(target_schp, arg3, 1); 3511 schp.sched_priority = tswap32(target_schp->sched_priority); 3512 unlock_user_struct(target_schp, arg3, 0); 3513 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 3514 } 3515 break; 3516 case TARGET_NR_sched_getscheduler: 3517 ret = get_errno(sched_getscheduler(arg1)); 3518 break; 3519 case TARGET_NR_sched_yield: 3520 ret = get_errno(sched_yield()); 3521 break; 3522 case TARGET_NR_sched_get_priority_max: 3523 ret = get_errno(sched_get_priority_max(arg1)); 3524 break; 3525 case TARGET_NR_sched_get_priority_min: 3526 ret = get_errno(sched_get_priority_min(arg1)); 3527 break; 3528 case TARGET_NR_sched_rr_get_interval: 3529 { 3530 struct timespec ts; 3531 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 3532 if (!is_error(ret)) { 3533 host_to_target_timespec(arg2, &ts); 3534 } 3535 } 3536 break; 3537 case TARGET_NR_nanosleep: 3538 { 3539 struct timespec req, rem; 3540 target_to_host_timespec(&req, arg1); 3541 ret = get_errno(nanosleep(&req, &rem)); 3542 if (is_error(ret) && arg2) { 3543 host_to_target_timespec(arg2, &rem); 3544 } 3545 } 3546 break; 3547 #ifdef TARGET_NR_query_module 3548 case TARGET_NR_query_module: 3549 goto unimplemented; 3550 #endif 3551 #ifdef TARGET_NR_nfsservctl 3552 case TARGET_NR_nfsservctl: 3553 goto unimplemented; 3554 #endif 3555 case TARGET_NR_prctl: 3556 switch (arg1) 3557 { 3558 case PR_GET_PDEATHSIG: 3559 { 3560 int deathsig; 3561 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 3562 if (!is_error(ret) && arg2) 3563 tput32(arg2, deathsig); 3564 } 3565 break; 3566 default: 3567 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 3568 break; 3569 } 3570 break; 3571 #ifdef TARGET_NR_pread 3572 case TARGET_NR_pread: 3573 page_unprotect_range(arg2, arg3); 3574 p = lock_user(arg2, arg3, 0); 3575 ret = get_errno(pread(arg1, p, arg3, arg4)); 3576 unlock_user(p, arg2, ret); 3577 break; 3578 case TARGET_NR_pwrite: 3579 p = lock_user(arg2, arg3, 1); 3580 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 3581 unlock_user(p, arg2, 0); 3582 break; 3583 #endif 3584 case TARGET_NR_getcwd: 3585 p = lock_user(arg1, arg2, 0); 3586 ret = get_errno(sys_getcwd1(p, arg2)); 3587 unlock_user(p, arg1, ret); 3588 break; 3589 case TARGET_NR_capget: 3590 goto unimplemented; 3591 case TARGET_NR_capset: 3592 goto unimplemented; 3593 case TARGET_NR_sigaltstack: 3594 goto unimplemented; 3595 case TARGET_NR_sendfile: 3596 goto unimplemented; 3597 #ifdef TARGET_NR_getpmsg 3598 case TARGET_NR_getpmsg: 3599 goto unimplemented; 3600 #endif 3601 #ifdef TARGET_NR_putpmsg 3602 case TARGET_NR_putpmsg: 3603 goto unimplemented; 3604 #endif 3605 #ifdef TARGET_NR_vfork 3606 case TARGET_NR_vfork: 3607 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 3608 break; 3609 #endif 3610 #ifdef TARGET_NR_ugetrlimit 3611 case TARGET_NR_ugetrlimit: 3612 { 3613 struct rlimit rlim; 3614 ret = get_errno(getrlimit(arg1, &rlim)); 3615 if (!is_error(ret)) { 3616 struct target_rlimit *target_rlim; 3617 lock_user_struct(target_rlim, arg2, 0); 3618 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 3619 target_rlim->rlim_max = tswapl(rlim.rlim_max); 3620 unlock_user_struct(target_rlim, arg2, 1); 3621 } 3622 break; 3623 } 3624 #endif 3625 #ifdef TARGET_NR_truncate64 3626 case TARGET_NR_truncate64: 3627 p = lock_user_string(arg1); 3628 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 3629 unlock_user(p, arg1, 0); 3630 break; 3631 #endif 3632 #ifdef TARGET_NR_ftruncate64 3633 case TARGET_NR_ftruncate64: 3634 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 3635 break; 3636 #endif 3637 #ifdef TARGET_NR_stat64 3638 case TARGET_NR_stat64: 3639 p = lock_user_string(arg1); 3640 ret = get_errno(stat(path(p), &st)); 3641 unlock_user(p, arg1, 0); 3642 goto do_stat64; 3643 #endif 3644 #ifdef TARGET_NR_lstat64 3645 case TARGET_NR_lstat64: 3646 p = lock_user_string(arg1); 3647 ret = get_errno(lstat(path(p), &st)); 3648 unlock_user(p, arg1, 0); 3649 goto do_stat64; 3650 #endif 3651 #ifdef TARGET_NR_fstat64 3652 case TARGET_NR_fstat64: 3653 { 3654 ret = get_errno(fstat(arg1, &st)); 3655 do_stat64: 3656 if (!is_error(ret)) { 3657 #ifdef TARGET_ARM 3658 if (((CPUARMState *)cpu_env)->eabi) { 3659 struct target_eabi_stat64 *target_st; 3660 lock_user_struct(target_st, arg2, 1); 3661 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 3662 /* put_user is probably wrong. */ 3663 put_user(st.st_dev, &target_st->st_dev); 3664 put_user(st.st_ino, &target_st->st_ino); 3665 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3666 put_user(st.st_ino, &target_st->__st_ino); 3667 #endif 3668 put_user(st.st_mode, &target_st->st_mode); 3669 put_user(st.st_nlink, &target_st->st_nlink); 3670 put_user(st.st_uid, &target_st->st_uid); 3671 put_user(st.st_gid, &target_st->st_gid); 3672 put_user(st.st_rdev, &target_st->st_rdev); 3673 /* XXX: better use of kernel struct */ 3674 put_user(st.st_size, &target_st->st_size); 3675 put_user(st.st_blksize, &target_st->st_blksize); 3676 put_user(st.st_blocks, &target_st->st_blocks); 3677 put_user(st.st_atime, &target_st->target_st_atime); 3678 put_user(st.st_mtime, &target_st->target_st_mtime); 3679 put_user(st.st_ctime, &target_st->target_st_ctime); 3680 unlock_user_struct(target_st, arg2, 0); 3681 } else 3682 #endif 3683 { 3684 struct target_stat64 *target_st; 3685 lock_user_struct(target_st, arg2, 1); 3686 memset(target_st, 0, sizeof(struct target_stat64)); 3687 /* ??? put_user is probably wrong. */ 3688 put_user(st.st_dev, &target_st->st_dev); 3689 put_user(st.st_ino, &target_st->st_ino); 3690 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3691 put_user(st.st_ino, &target_st->__st_ino); 3692 #endif 3693 put_user(st.st_mode, &target_st->st_mode); 3694 put_user(st.st_nlink, &target_st->st_nlink); 3695 put_user(st.st_uid, &target_st->st_uid); 3696 put_user(st.st_gid, &target_st->st_gid); 3697 put_user(st.st_rdev, &target_st->st_rdev); 3698 /* XXX: better use of kernel struct */ 3699 put_user(st.st_size, &target_st->st_size); 3700 put_user(st.st_blksize, &target_st->st_blksize); 3701 put_user(st.st_blocks, &target_st->st_blocks); 3702 put_user(st.st_atime, &target_st->target_st_atime); 3703 put_user(st.st_mtime, &target_st->target_st_mtime); 3704 put_user(st.st_ctime, &target_st->target_st_ctime); 3705 unlock_user_struct(target_st, arg2, 0); 3706 } 3707 } 3708 } 3709 break; 3710 #endif 3711 #ifdef USE_UID16 3712 case TARGET_NR_lchown: 3713 p = lock_user_string(arg1); 3714 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 3715 unlock_user(p, arg1, 0); 3716 break; 3717 case TARGET_NR_getuid: 3718 ret = get_errno(high2lowuid(getuid())); 3719 break; 3720 case TARGET_NR_getgid: 3721 ret = get_errno(high2lowgid(getgid())); 3722 break; 3723 case TARGET_NR_geteuid: 3724 ret = get_errno(high2lowuid(geteuid())); 3725 break; 3726 case TARGET_NR_getegid: 3727 ret = get_errno(high2lowgid(getegid())); 3728 break; 3729 case TARGET_NR_setreuid: 3730 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 3731 break; 3732 case TARGET_NR_setregid: 3733 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 3734 break; 3735 case TARGET_NR_getgroups: 3736 { 3737 int gidsetsize = arg1; 3738 uint16_t *target_grouplist; 3739 gid_t *grouplist; 3740 int i; 3741 3742 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3743 ret = get_errno(getgroups(gidsetsize, grouplist)); 3744 if (!is_error(ret)) { 3745 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 3746 for(i = 0;i < gidsetsize; i++) 3747 target_grouplist[i] = tswap16(grouplist[i]); 3748 unlock_user(target_grouplist, arg2, gidsetsize * 2); 3749 } 3750 } 3751 break; 3752 case TARGET_NR_setgroups: 3753 { 3754 int gidsetsize = arg1; 3755 uint16_t *target_grouplist; 3756 gid_t *grouplist; 3757 int i; 3758 3759 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3760 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 3761 for(i = 0;i < gidsetsize; i++) 3762 grouplist[i] = tswap16(target_grouplist[i]); 3763 unlock_user(target_grouplist, arg2, 0); 3764 ret = get_errno(setgroups(gidsetsize, grouplist)); 3765 } 3766 break; 3767 case TARGET_NR_fchown: 3768 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 3769 break; 3770 #ifdef TARGET_NR_setresuid 3771 case TARGET_NR_setresuid: 3772 ret = get_errno(setresuid(low2highuid(arg1), 3773 low2highuid(arg2), 3774 low2highuid(arg3))); 3775 break; 3776 #endif 3777 #ifdef TARGET_NR_getresuid 3778 case TARGET_NR_getresuid: 3779 { 3780 uid_t ruid, euid, suid; 3781 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3782 if (!is_error(ret)) { 3783 tput16(arg1, tswap16(high2lowuid(ruid))); 3784 tput16(arg2, tswap16(high2lowuid(euid))); 3785 tput16(arg3, tswap16(high2lowuid(suid))); 3786 } 3787 } 3788 break; 3789 #endif 3790 #ifdef TARGET_NR_getresgid 3791 case TARGET_NR_setresgid: 3792 ret = get_errno(setresgid(low2highgid(arg1), 3793 low2highgid(arg2), 3794 low2highgid(arg3))); 3795 break; 3796 #endif 3797 #ifdef TARGET_NR_getresgid 3798 case TARGET_NR_getresgid: 3799 { 3800 gid_t rgid, egid, sgid; 3801 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3802 if (!is_error(ret)) { 3803 tput16(arg1, tswap16(high2lowgid(rgid))); 3804 tput16(arg2, tswap16(high2lowgid(egid))); 3805 tput16(arg3, tswap16(high2lowgid(sgid))); 3806 } 3807 } 3808 break; 3809 #endif 3810 case TARGET_NR_chown: 3811 p = lock_user_string(arg1); 3812 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 3813 unlock_user(p, arg1, 0); 3814 break; 3815 case TARGET_NR_setuid: 3816 ret = get_errno(setuid(low2highuid(arg1))); 3817 break; 3818 case TARGET_NR_setgid: 3819 ret = get_errno(setgid(low2highgid(arg1))); 3820 break; 3821 case TARGET_NR_setfsuid: 3822 ret = get_errno(setfsuid(arg1)); 3823 break; 3824 case TARGET_NR_setfsgid: 3825 ret = get_errno(setfsgid(arg1)); 3826 break; 3827 #endif /* USE_UID16 */ 3828 3829 #ifdef TARGET_NR_lchown32 3830 case TARGET_NR_lchown32: 3831 p = lock_user_string(arg1); 3832 ret = get_errno(lchown(p, arg2, arg3)); 3833 unlock_user(p, arg1, 0); 3834 break; 3835 #endif 3836 #ifdef TARGET_NR_getuid32 3837 case TARGET_NR_getuid32: 3838 ret = get_errno(getuid()); 3839 break; 3840 #endif 3841 #ifdef TARGET_NR_getgid32 3842 case TARGET_NR_getgid32: 3843 ret = get_errno(getgid()); 3844 break; 3845 #endif 3846 #ifdef TARGET_NR_geteuid32 3847 case TARGET_NR_geteuid32: 3848 ret = get_errno(geteuid()); 3849 break; 3850 #endif 3851 #ifdef TARGET_NR_getegid32 3852 case TARGET_NR_getegid32: 3853 ret = get_errno(getegid()); 3854 break; 3855 #endif 3856 #ifdef TARGET_NR_setreuid32 3857 case TARGET_NR_setreuid32: 3858 ret = get_errno(setreuid(arg1, arg2)); 3859 break; 3860 #endif 3861 #ifdef TARGET_NR_setregid32 3862 case TARGET_NR_setregid32: 3863 ret = get_errno(setregid(arg1, arg2)); 3864 break; 3865 #endif 3866 #ifdef TARGET_NR_getgroups32 3867 case TARGET_NR_getgroups32: 3868 { 3869 int gidsetsize = arg1; 3870 uint32_t *target_grouplist; 3871 gid_t *grouplist; 3872 int i; 3873 3874 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3875 ret = get_errno(getgroups(gidsetsize, grouplist)); 3876 if (!is_error(ret)) { 3877 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 3878 for(i = 0;i < gidsetsize; i++) 3879 target_grouplist[i] = tswap32(grouplist[i]); 3880 unlock_user(target_grouplist, arg2, gidsetsize * 4); 3881 } 3882 } 3883 break; 3884 #endif 3885 #ifdef TARGET_NR_setgroups32 3886 case TARGET_NR_setgroups32: 3887 { 3888 int gidsetsize = arg1; 3889 uint32_t *target_grouplist; 3890 gid_t *grouplist; 3891 int i; 3892 3893 grouplist = alloca(gidsetsize * sizeof(gid_t)); 3894 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 3895 for(i = 0;i < gidsetsize; i++) 3896 grouplist[i] = tswap32(target_grouplist[i]); 3897 unlock_user(target_grouplist, arg2, 0); 3898 ret = get_errno(setgroups(gidsetsize, grouplist)); 3899 } 3900 break; 3901 #endif 3902 #ifdef TARGET_NR_fchown32 3903 case TARGET_NR_fchown32: 3904 ret = get_errno(fchown(arg1, arg2, arg3)); 3905 break; 3906 #endif 3907 #ifdef TARGET_NR_setresuid32 3908 case TARGET_NR_setresuid32: 3909 ret = get_errno(setresuid(arg1, arg2, arg3)); 3910 break; 3911 #endif 3912 #ifdef TARGET_NR_getresuid32 3913 case TARGET_NR_getresuid32: 3914 { 3915 uid_t ruid, euid, suid; 3916 ret = get_errno(getresuid(&ruid, &euid, &suid)); 3917 if (!is_error(ret)) { 3918 tput32(arg1, tswap32(ruid)); 3919 tput32(arg2, tswap32(euid)); 3920 tput32(arg3, tswap32(suid)); 3921 } 3922 } 3923 break; 3924 #endif 3925 #ifdef TARGET_NR_setresgid32 3926 case TARGET_NR_setresgid32: 3927 ret = get_errno(setresgid(arg1, arg2, arg3)); 3928 break; 3929 #endif 3930 #ifdef TARGET_NR_getresgid32 3931 case TARGET_NR_getresgid32: 3932 { 3933 gid_t rgid, egid, sgid; 3934 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 3935 if (!is_error(ret)) { 3936 tput32(arg1, tswap32(rgid)); 3937 tput32(arg2, tswap32(egid)); 3938 tput32(arg3, tswap32(sgid)); 3939 } 3940 } 3941 break; 3942 #endif 3943 #ifdef TARGET_NR_chown32 3944 case TARGET_NR_chown32: 3945 p = lock_user_string(arg1); 3946 ret = get_errno(chown(p, arg2, arg3)); 3947 unlock_user(p, arg1, 0); 3948 break; 3949 #endif 3950 #ifdef TARGET_NR_setuid32 3951 case TARGET_NR_setuid32: 3952 ret = get_errno(setuid(arg1)); 3953 break; 3954 #endif 3955 #ifdef TARGET_NR_setgid32 3956 case TARGET_NR_setgid32: 3957 ret = get_errno(setgid(arg1)); 3958 break; 3959 #endif 3960 #ifdef TARGET_NR_setfsuid32 3961 case TARGET_NR_setfsuid32: 3962 ret = get_errno(setfsuid(arg1)); 3963 break; 3964 #endif 3965 #ifdef TARGET_NR_setfsgid32 3966 case TARGET_NR_setfsgid32: 3967 ret = get_errno(setfsgid(arg1)); 3968 break; 3969 #endif 3970 3971 case TARGET_NR_pivot_root: 3972 goto unimplemented; 3973 #ifdef TARGET_NR_mincore 3974 case TARGET_NR_mincore: 3975 goto unimplemented; 3976 #endif 3977 #ifdef TARGET_NR_madvise 3978 case TARGET_NR_madvise: 3979 /* A straight passthrough may not be safe because qemu sometimes 3980 turns private flie-backed mappings into anonymous mappings. 3981 This will break MADV_DONTNEED. 3982 This is a hint, so ignoring and returning success is ok. */ 3983 ret = get_errno(0); 3984 break; 3985 #endif 3986 #if TARGET_LONG_BITS == 32 3987 case TARGET_NR_fcntl64: 3988 { 3989 int cmd; 3990 struct flock64 fl; 3991 struct target_flock64 *target_fl; 3992 #ifdef TARGET_ARM 3993 struct target_eabi_flock64 *target_efl; 3994 #endif 3995 3996 switch(arg2){ 3997 case TARGET_F_GETLK64: 3998 cmd = F_GETLK64; 3999 break; 4000 case TARGET_F_SETLK64: 4001 cmd = F_SETLK64; 4002 break; 4003 case TARGET_F_SETLKW64: 4004 cmd = F_SETLK64; 4005 break; 4006 default: 4007 cmd = arg2; 4008 break; 4009 } 4010 4011 switch(arg2) { 4012 case TARGET_F_GETLK64: 4013 #ifdef TARGET_ARM 4014 if (((CPUARMState *)cpu_env)->eabi) { 4015 lock_user_struct(target_efl, arg3, 1); 4016 fl.l_type = tswap16(target_efl->l_type); 4017 fl.l_whence = tswap16(target_efl->l_whence); 4018 fl.l_start = tswap64(target_efl->l_start); 4019 fl.l_len = tswap64(target_efl->l_len); 4020 fl.l_pid = tswapl(target_efl->l_pid); 4021 unlock_user_struct(target_efl, arg3, 0); 4022 } else 4023 #endif 4024 { 4025 lock_user_struct(target_fl, arg3, 1); 4026 fl.l_type = tswap16(target_fl->l_type); 4027 fl.l_whence = tswap16(target_fl->l_whence); 4028 fl.l_start = tswap64(target_fl->l_start); 4029 fl.l_len = tswap64(target_fl->l_len); 4030 fl.l_pid = tswapl(target_fl->l_pid); 4031 unlock_user_struct(target_fl, arg3, 0); 4032 } 4033 ret = get_errno(fcntl(arg1, cmd, &fl)); 4034 if (ret == 0) { 4035 #ifdef TARGET_ARM 4036 if (((CPUARMState *)cpu_env)->eabi) { 4037 lock_user_struct(target_efl, arg3, 0); 4038 target_efl->l_type = tswap16(fl.l_type); 4039 target_efl->l_whence = tswap16(fl.l_whence); 4040 target_efl->l_start = tswap64(fl.l_start); 4041 target_efl->l_len = tswap64(fl.l_len); 4042 target_efl->l_pid = tswapl(fl.l_pid); 4043 unlock_user_struct(target_efl, arg3, 1); 4044 } else 4045 #endif 4046 { 4047 lock_user_struct(target_fl, arg3, 0); 4048 target_fl->l_type = tswap16(fl.l_type); 4049 target_fl->l_whence = tswap16(fl.l_whence); 4050 target_fl->l_start = tswap64(fl.l_start); 4051 target_fl->l_len = tswap64(fl.l_len); 4052 target_fl->l_pid = tswapl(fl.l_pid); 4053 unlock_user_struct(target_fl, arg3, 1); 4054 } 4055 } 4056 break; 4057 4058 case TARGET_F_SETLK64: 4059 case TARGET_F_SETLKW64: 4060 #ifdef TARGET_ARM 4061 if (((CPUARMState *)cpu_env)->eabi) { 4062 lock_user_struct(target_efl, arg3, 1); 4063 fl.l_type = tswap16(target_efl->l_type); 4064 fl.l_whence = tswap16(target_efl->l_whence); 4065 fl.l_start = tswap64(target_efl->l_start); 4066 fl.l_len = tswap64(target_efl->l_len); 4067 fl.l_pid = tswapl(target_efl->l_pid); 4068 unlock_user_struct(target_efl, arg3, 0); 4069 } else 4070 #endif 4071 { 4072 lock_user_struct(target_fl, arg3, 1); 4073 fl.l_type = tswap16(target_fl->l_type); 4074 fl.l_whence = tswap16(target_fl->l_whence); 4075 fl.l_start = tswap64(target_fl->l_start); 4076 fl.l_len = tswap64(target_fl->l_len); 4077 fl.l_pid = tswapl(target_fl->l_pid); 4078 unlock_user_struct(target_fl, arg3, 0); 4079 } 4080 ret = get_errno(fcntl(arg1, cmd, &fl)); 4081 break; 4082 default: 4083 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 4084 break; 4085 } 4086 break; 4087 } 4088 #endif 4089 #ifdef TARGET_NR_cacheflush 4090 case TARGET_NR_cacheflush: 4091 /* self-modifying code is handled automatically, so nothing needed */ 4092 ret = 0; 4093 break; 4094 #endif 4095 #ifdef TARGET_NR_security 4096 case TARGET_NR_security: 4097 goto unimplemented; 4098 #endif 4099 #ifdef TARGET_NR_getpagesize 4100 case TARGET_NR_getpagesize: 4101 ret = TARGET_PAGE_SIZE; 4102 break; 4103 #endif 4104 case TARGET_NR_gettid: 4105 ret = get_errno(gettid()); 4106 break; 4107 #ifdef TARGET_NR_readahead 4108 case TARGET_NR_readahead: 4109 goto unimplemented; 4110 #endif 4111 #ifdef TARGET_NR_setxattr 4112 case TARGET_NR_setxattr: 4113 case TARGET_NR_lsetxattr: 4114 case TARGET_NR_fsetxattr: 4115 case TARGET_NR_getxattr: 4116 case TARGET_NR_lgetxattr: 4117 case TARGET_NR_fgetxattr: 4118 case TARGET_NR_listxattr: 4119 case TARGET_NR_llistxattr: 4120 case TARGET_NR_flistxattr: 4121 case TARGET_NR_removexattr: 4122 case TARGET_NR_lremovexattr: 4123 case TARGET_NR_fremovexattr: 4124 goto unimplemented_nowarn; 4125 #endif 4126 #ifdef TARGET_NR_set_thread_area 4127 case TARGET_NR_set_thread_area: 4128 #ifdef TARGET_MIPS 4129 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 4130 ret = 0; 4131 break; 4132 #else 4133 goto unimplemented_nowarn; 4134 #endif 4135 #endif 4136 #ifdef TARGET_NR_get_thread_area 4137 case TARGET_NR_get_thread_area: 4138 goto unimplemented_nowarn; 4139 #endif 4140 #ifdef TARGET_NR_getdomainname 4141 case TARGET_NR_getdomainname: 4142 goto unimplemented_nowarn; 4143 #endif 4144 4145 #ifdef TARGET_NR_clock_gettime 4146 case TARGET_NR_clock_gettime: 4147 { 4148 struct timespec ts; 4149 ret = get_errno(clock_gettime(arg1, &ts)); 4150 if (!is_error(ret)) { 4151 host_to_target_timespec(arg2, &ts); 4152 } 4153 break; 4154 } 4155 #endif 4156 #ifdef TARGET_NR_clock_getres 4157 case TARGET_NR_clock_getres: 4158 { 4159 struct timespec ts; 4160 ret = get_errno(clock_getres(arg1, &ts)); 4161 if (!is_error(ret)) { 4162 host_to_target_timespec(arg2, &ts); 4163 } 4164 break; 4165 } 4166 #endif 4167 4168 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 4169 case TARGET_NR_set_tid_address: 4170 ret = get_errno(set_tid_address((int *) arg1)); 4171 break; 4172 #endif 4173 4174 default: 4175 unimplemented: 4176 gemu_log("qemu: Unsupported syscall: %d\n", num); 4177 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) 4178 unimplemented_nowarn: 4179 #endif 4180 ret = -ENOSYS; 4181 break; 4182 } 4183 fail: 4184 #ifdef DEBUG 4185 gemu_log(" = %ld\n", ret); 4186 #endif 4187 return ret; 4188 } 4189 4190