1 /* 2 * Linux syscalls 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <stdarg.h> 23 #include <string.h> 24 #include <elf.h> 25 #include <endian.h> 26 #include <errno.h> 27 #include <unistd.h> 28 #include <fcntl.h> 29 #include <time.h> 30 #include <sys/types.h> 31 #include <sys/wait.h> 32 #include <sys/time.h> 33 #include <sys/stat.h> 34 #include <sys/mount.h> 35 #include <sys/resource.h> 36 #include <sys/mman.h> 37 #include <sys/swap.h> 38 #include <signal.h> 39 #include <sched.h> 40 #include <sys/socket.h> 41 #include <sys/uio.h> 42 #include <sys/poll.h> 43 #include <sys/times.h> 44 //#include <sys/user.h> 45 #include <netinet/tcp.h> 46 47 #define termios host_termios 48 #define winsize host_winsize 49 #define termio host_termio 50 #define sgttyb host_sgttyb /* same as target */ 51 #define tchars host_tchars /* same as target */ 52 #define ltchars host_ltchars /* same as target */ 53 54 #include <linux/termios.h> 55 #include <linux/unistd.h> 56 #include <linux/utsname.h> 57 #include <linux/cdrom.h> 58 #include <linux/hdreg.h> 59 #include <linux/soundcard.h> 60 #include <linux/dirent.h> 61 #include <linux/kd.h> 62 63 #include "qemu.h" 64 65 //#define DEBUG 66 67 //#include <linux/msdos_fs.h> 68 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 69 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 70 71 void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info); 72 void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo); 73 long do_sigreturn(CPUX86State *env); 74 long do_rt_sigreturn(CPUX86State *env); 75 76 #define __NR_sys_uname __NR_uname 77 #define __NR_sys_getcwd1 __NR_getcwd 78 #define __NR_sys_statfs __NR_statfs 79 #define __NR_sys_fstatfs __NR_fstatfs 80 #define __NR_sys_getdents __NR_getdents 81 #define __NR_sys_getdents64 __NR_getdents64 82 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 83 84 #if defined(__alpha__) || defined (__ia64__) 85 #define __NR__llseek __NR_lseek 86 #endif 87 88 #ifdef __NR_gettid 89 _syscall0(int, gettid) 90 #else 91 static int gettid(void) { 92 return -ENOSYS; 93 } 94 #endif 95 _syscall1(int,sys_uname,struct new_utsname *,buf) 96 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 97 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 98 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 99 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 100 loff_t *, res, uint, wh); 101 _syscall2(int,sys_statfs,const char *,path,struct kernel_statfs *,buf) 102 _syscall2(int,sys_fstatfs,int,fd,struct kernel_statfs *,buf) 103 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 104 #ifdef __NR_exit_group 105 _syscall1(int,exit_group,int,error_code) 106 #endif 107 108 extern int personality(int); 109 extern int flock(int, int); 110 extern int setfsuid(int); 111 extern int setfsgid(int); 112 extern int setresuid(uid_t, uid_t, uid_t); 113 extern int getresuid(uid_t *, uid_t *, uid_t *); 114 extern int setresgid(gid_t, gid_t, gid_t); 115 extern int getresgid(gid_t *, gid_t *, gid_t *); 116 extern int setgroups(int, gid_t *); 117 118 static inline long get_errno(long ret) 119 { 120 if (ret == -1) 121 return -errno; 122 else 123 return ret; 124 } 125 126 static inline int is_error(long ret) 127 { 128 return (unsigned long)ret >= (unsigned long)(-4096); 129 } 130 131 static char *target_brk; 132 static char *target_original_brk; 133 134 void target_set_brk(char *new_brk) 135 { 136 target_brk = new_brk; 137 target_original_brk = new_brk; 138 } 139 140 static long do_brk(char *new_brk) 141 { 142 char *brk_page; 143 long mapped_addr; 144 int new_alloc_size; 145 146 if (!new_brk) 147 return (long)target_brk; 148 if (new_brk < target_original_brk) 149 return -ENOMEM; 150 151 brk_page = (char *)HOST_PAGE_ALIGN((unsigned long)target_brk); 152 153 /* If the new brk is less than this, set it and we're done... */ 154 if (new_brk < brk_page) { 155 target_brk = new_brk; 156 return (long)target_brk; 157 } 158 159 /* We need to allocate more memory after the brk... */ 160 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 161 mapped_addr = get_errno(target_mmap((unsigned long)brk_page, new_alloc_size, 162 PROT_READ|PROT_WRITE, 163 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 164 if (is_error(mapped_addr)) { 165 return mapped_addr; 166 } else { 167 target_brk = new_brk; 168 return (long)target_brk; 169 } 170 } 171 172 static inline fd_set *target_to_host_fds(fd_set *fds, 173 target_long *target_fds, int n) 174 { 175 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 176 return (fd_set *)target_fds; 177 #else 178 int i, b; 179 if (target_fds) { 180 FD_ZERO(fds); 181 for(i = 0;i < n; i++) { 182 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 183 (i & (TARGET_LONG_BITS - 1))) & 1; 184 if (b) 185 FD_SET(i, fds); 186 } 187 return fds; 188 } else { 189 return NULL; 190 } 191 #endif 192 } 193 194 static inline void host_to_target_fds(target_long *target_fds, 195 fd_set *fds, int n) 196 { 197 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 198 /* nothing to do */ 199 #else 200 int i, nw, j, k; 201 target_long v; 202 203 if (target_fds) { 204 nw = n / TARGET_LONG_BITS; 205 k = 0; 206 for(i = 0;i < nw; i++) { 207 v = 0; 208 for(j = 0; j < TARGET_LONG_BITS; j++) { 209 v |= ((FD_ISSET(k, fds) != 0) << j); 210 k++; 211 } 212 target_fds[i] = tswapl(v); 213 } 214 } 215 #endif 216 } 217 218 static inline void host_to_target_rusage(struct target_rusage *target_rusage, 219 const struct rusage *rusage) 220 { 221 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 222 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 223 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 224 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 225 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 226 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 227 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 228 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 229 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 230 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 231 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 232 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 233 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 234 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 235 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 236 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 237 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 238 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 239 } 240 241 static inline void target_to_host_timeval(struct timeval *tv, 242 const struct target_timeval *target_tv) 243 { 244 tv->tv_sec = tswapl(target_tv->tv_sec); 245 tv->tv_usec = tswapl(target_tv->tv_usec); 246 } 247 248 static inline void host_to_target_timeval(struct target_timeval *target_tv, 249 const struct timeval *tv) 250 { 251 target_tv->tv_sec = tswapl(tv->tv_sec); 252 target_tv->tv_usec = tswapl(tv->tv_usec); 253 } 254 255 256 static long do_select(long n, 257 target_long *target_rfds, target_long *target_wfds, 258 target_long *target_efds, struct target_timeval *target_tv) 259 { 260 fd_set rfds, wfds, efds; 261 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 262 struct timeval tv, *tv_ptr; 263 long ret; 264 265 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 266 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 267 efds_ptr = target_to_host_fds(&efds, target_efds, n); 268 269 if (target_tv) { 270 target_to_host_timeval(&tv, target_tv); 271 tv_ptr = &tv; 272 } else { 273 tv_ptr = NULL; 274 } 275 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 276 if (!is_error(ret)) { 277 host_to_target_fds(target_rfds, rfds_ptr, n); 278 host_to_target_fds(target_wfds, wfds_ptr, n); 279 host_to_target_fds(target_efds, efds_ptr, n); 280 281 if (target_tv) { 282 host_to_target_timeval(target_tv, &tv); 283 } 284 } 285 return ret; 286 } 287 288 static inline void target_to_host_sockaddr(struct sockaddr *addr, 289 struct target_sockaddr *target_addr, 290 socklen_t len) 291 { 292 memcpy(addr, target_addr, len); 293 addr->sa_family = tswap16(target_addr->sa_family); 294 } 295 296 static inline void host_to_target_sockaddr(struct target_sockaddr *target_addr, 297 struct sockaddr *addr, 298 socklen_t len) 299 { 300 memcpy(target_addr, addr, len); 301 target_addr->sa_family = tswap16(addr->sa_family); 302 } 303 304 static inline void target_to_host_cmsg(struct msghdr *msgh, 305 struct target_msghdr *target_msgh) 306 { 307 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 308 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 309 socklen_t space = 0; 310 311 while (cmsg && target_cmsg) { 312 void *data = CMSG_DATA(cmsg); 313 void *target_data = TARGET_CMSG_DATA(target_cmsg); 314 315 int len = tswapl(target_cmsg->cmsg_len) 316 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 317 318 space += CMSG_SPACE(len); 319 if (space > msgh->msg_controllen) { 320 space -= CMSG_SPACE(len); 321 gemu_log("Host cmsg overflow"); 322 break; 323 } 324 325 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 326 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 327 cmsg->cmsg_len = CMSG_LEN(len); 328 329 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 330 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 331 memcpy(data, target_data, len); 332 } else { 333 int *fd = (int *)data; 334 int *target_fd = (int *)target_data; 335 int i, numfds = len / sizeof(int); 336 337 for (i = 0; i < numfds; i++) 338 fd[i] = tswap32(target_fd[i]); 339 } 340 341 cmsg = CMSG_NXTHDR(msgh, cmsg); 342 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 343 } 344 345 msgh->msg_controllen = space; 346 } 347 348 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 349 struct msghdr *msgh) 350 { 351 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 352 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 353 socklen_t space = 0; 354 355 while (cmsg && target_cmsg) { 356 void *data = CMSG_DATA(cmsg); 357 void *target_data = TARGET_CMSG_DATA(target_cmsg); 358 359 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 360 361 space += TARGET_CMSG_SPACE(len); 362 if (space > tswapl(target_msgh->msg_controllen)) { 363 space -= TARGET_CMSG_SPACE(len); 364 gemu_log("Target cmsg overflow"); 365 break; 366 } 367 368 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 369 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 370 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 371 372 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 373 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 374 memcpy(target_data, data, len); 375 } else { 376 int *fd = (int *)data; 377 int *target_fd = (int *)target_data; 378 int i, numfds = len / sizeof(int); 379 380 for (i = 0; i < numfds; i++) 381 target_fd[i] = tswap32(fd[i]); 382 } 383 384 cmsg = CMSG_NXTHDR(msgh, cmsg); 385 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 386 } 387 388 msgh->msg_controllen = tswapl(space); 389 } 390 391 static long do_setsockopt(int sockfd, int level, int optname, 392 void *optval, socklen_t optlen) 393 { 394 if (level == SOL_TCP) { 395 /* TCP options all take an 'int' value. */ 396 int val; 397 398 if (optlen < sizeof(uint32_t)) 399 return -EINVAL; 400 401 val = tswap32(*(uint32_t *)optval); 402 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 403 } 404 405 else if (level != SOL_SOCKET) { 406 gemu_log("Unsupported setsockopt level: %d\n", level); 407 return -ENOSYS; 408 } 409 410 switch (optname) { 411 /* Options with 'int' argument. */ 412 case SO_DEBUG: 413 case SO_REUSEADDR: 414 case SO_TYPE: 415 case SO_ERROR: 416 case SO_DONTROUTE: 417 case SO_BROADCAST: 418 case SO_SNDBUF: 419 case SO_RCVBUF: 420 case SO_KEEPALIVE: 421 case SO_OOBINLINE: 422 case SO_NO_CHECK: 423 case SO_PRIORITY: 424 case SO_BSDCOMPAT: 425 case SO_PASSCRED: 426 case SO_TIMESTAMP: 427 case SO_RCVLOWAT: 428 case SO_RCVTIMEO: 429 case SO_SNDTIMEO: 430 { 431 int val; 432 if (optlen < sizeof(uint32_t)) 433 return -EINVAL; 434 val = tswap32(*(uint32_t *)optval); 435 return get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 436 } 437 438 default: 439 gemu_log("Unsupported setsockopt SOL_SOCKET option: %d\n", optname); 440 return -ENOSYS; 441 } 442 } 443 444 static long do_getsockopt(int sockfd, int level, int optname, 445 void *optval, socklen_t *optlen) 446 { 447 gemu_log("getsockopt not yet supported\n"); 448 return -ENOSYS; 449 } 450 451 static long do_socketcall(int num, int32_t *vptr) 452 { 453 long ret; 454 455 switch(num) { 456 case SOCKOP_socket: 457 { 458 int domain = tswap32(vptr[0]); 459 int type = tswap32(vptr[1]); 460 int protocol = tswap32(vptr[2]); 461 462 ret = get_errno(socket(domain, type, protocol)); 463 } 464 break; 465 case SOCKOP_bind: 466 { 467 int sockfd = tswap32(vptr[0]); 468 void *target_addr = (void *)tswap32(vptr[1]); 469 socklen_t addrlen = tswap32(vptr[2]); 470 void *addr = alloca(addrlen); 471 472 target_to_host_sockaddr(addr, target_addr, addrlen); 473 ret = get_errno(bind(sockfd, addr, addrlen)); 474 } 475 break; 476 case SOCKOP_connect: 477 { 478 int sockfd = tswap32(vptr[0]); 479 void *target_addr = (void *)tswap32(vptr[1]); 480 socklen_t addrlen = tswap32(vptr[2]); 481 void *addr = alloca(addrlen); 482 483 target_to_host_sockaddr(addr, target_addr, addrlen); 484 ret = get_errno(connect(sockfd, addr, addrlen)); 485 } 486 break; 487 case SOCKOP_listen: 488 { 489 int sockfd = tswap32(vptr[0]); 490 int backlog = tswap32(vptr[1]); 491 492 ret = get_errno(listen(sockfd, backlog)); 493 } 494 break; 495 case SOCKOP_accept: 496 { 497 int sockfd = tswap32(vptr[0]); 498 void *target_addr = (void *)tswap32(vptr[1]); 499 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 500 socklen_t addrlen = tswap32(*target_addrlen); 501 void *addr = alloca(addrlen); 502 503 ret = get_errno(accept(sockfd, addr, &addrlen)); 504 if (!is_error(ret)) { 505 host_to_target_sockaddr(target_addr, addr, addrlen); 506 *target_addrlen = tswap32(addrlen); 507 } 508 } 509 break; 510 case SOCKOP_getsockname: 511 { 512 int sockfd = tswap32(vptr[0]); 513 void *target_addr = (void *)tswap32(vptr[1]); 514 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 515 socklen_t addrlen = tswap32(*target_addrlen); 516 void *addr = alloca(addrlen); 517 518 ret = get_errno(getsockname(sockfd, addr, &addrlen)); 519 if (!is_error(ret)) { 520 host_to_target_sockaddr(target_addr, addr, addrlen); 521 *target_addrlen = tswap32(addrlen); 522 } 523 } 524 break; 525 case SOCKOP_getpeername: 526 { 527 int sockfd = tswap32(vptr[0]); 528 void *target_addr = (void *)tswap32(vptr[1]); 529 uint32_t *target_addrlen = (void *)tswap32(vptr[2]); 530 socklen_t addrlen = tswap32(*target_addrlen); 531 void *addr = alloca(addrlen); 532 533 ret = get_errno(getpeername(sockfd, addr, &addrlen)); 534 if (!is_error(ret)) { 535 host_to_target_sockaddr(target_addr, addr, addrlen); 536 *target_addrlen = tswap32(addrlen); 537 } 538 } 539 break; 540 case SOCKOP_socketpair: 541 { 542 int domain = tswap32(vptr[0]); 543 int type = tswap32(vptr[1]); 544 int protocol = tswap32(vptr[2]); 545 int32_t *target_tab = (void *)tswap32(vptr[3]); 546 int tab[2]; 547 548 ret = get_errno(socketpair(domain, type, protocol, tab)); 549 if (!is_error(ret)) { 550 target_tab[0] = tswap32(tab[0]); 551 target_tab[1] = tswap32(tab[1]); 552 } 553 } 554 break; 555 case SOCKOP_send: 556 { 557 int sockfd = tswap32(vptr[0]); 558 void *msg = (void *)tswap32(vptr[1]); 559 size_t len = tswap32(vptr[2]); 560 int flags = tswap32(vptr[3]); 561 562 ret = get_errno(send(sockfd, msg, len, flags)); 563 } 564 break; 565 case SOCKOP_recv: 566 { 567 int sockfd = tswap32(vptr[0]); 568 void *msg = (void *)tswap32(vptr[1]); 569 size_t len = tswap32(vptr[2]); 570 int flags = tswap32(vptr[3]); 571 572 ret = get_errno(recv(sockfd, msg, len, flags)); 573 } 574 break; 575 case SOCKOP_sendto: 576 { 577 int sockfd = tswap32(vptr[0]); 578 void *msg = (void *)tswap32(vptr[1]); 579 size_t len = tswap32(vptr[2]); 580 int flags = tswap32(vptr[3]); 581 void *target_addr = (void *)tswap32(vptr[4]); 582 socklen_t addrlen = tswap32(vptr[5]); 583 void *addr = alloca(addrlen); 584 585 target_to_host_sockaddr(addr, target_addr, addrlen); 586 ret = get_errno(sendto(sockfd, msg, len, flags, addr, addrlen)); 587 } 588 break; 589 case SOCKOP_recvfrom: 590 { 591 int sockfd = tswap32(vptr[0]); 592 void *msg = (void *)tswap32(vptr[1]); 593 size_t len = tswap32(vptr[2]); 594 int flags = tswap32(vptr[3]); 595 void *target_addr = (void *)tswap32(vptr[4]); 596 uint32_t *target_addrlen = (void *)tswap32(vptr[5]); 597 socklen_t addrlen = tswap32(*target_addrlen); 598 void *addr = alloca(addrlen); 599 600 ret = get_errno(recvfrom(sockfd, msg, len, flags, addr, &addrlen)); 601 if (!is_error(ret)) { 602 host_to_target_sockaddr(target_addr, addr, addrlen); 603 *target_addrlen = tswap32(addrlen); 604 } 605 } 606 break; 607 case SOCKOP_shutdown: 608 { 609 int sockfd = tswap32(vptr[0]); 610 int how = tswap32(vptr[1]); 611 612 ret = get_errno(shutdown(sockfd, how)); 613 } 614 break; 615 case SOCKOP_sendmsg: 616 case SOCKOP_recvmsg: 617 { 618 int fd; 619 struct target_msghdr *msgp; 620 struct msghdr msg; 621 int flags, count, i; 622 struct iovec *vec; 623 struct target_iovec *target_vec; 624 625 msgp = (void *)tswap32(vptr[1]); 626 msg.msg_name = (void *)tswapl(msgp->msg_name); 627 msg.msg_namelen = tswapl(msgp->msg_namelen); 628 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 629 msg.msg_control = alloca(msg.msg_controllen); 630 msg.msg_flags = tswap32(msgp->msg_flags); 631 632 count = tswapl(msgp->msg_iovlen); 633 vec = alloca(count * sizeof(struct iovec)); 634 target_vec = (void *)tswapl(msgp->msg_iov); 635 for(i = 0;i < count; i++) { 636 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 637 vec[i].iov_len = tswapl(target_vec[i].iov_len); 638 } 639 msg.msg_iovlen = count; 640 msg.msg_iov = vec; 641 642 fd = tswap32(vptr[0]); 643 flags = tswap32(vptr[2]); 644 if (num == SOCKOP_sendmsg) { 645 target_to_host_cmsg(&msg, msgp); 646 ret = get_errno(sendmsg(fd, &msg, flags)); 647 } else { 648 ret = get_errno(recvmsg(fd, &msg, flags)); 649 if (!is_error(ret)) 650 host_to_target_cmsg(msgp, &msg); 651 } 652 } 653 break; 654 case SOCKOP_setsockopt: 655 { 656 int sockfd = tswap32(vptr[0]); 657 int level = tswap32(vptr[1]); 658 int optname = tswap32(vptr[2]); 659 void *optval = (void *)tswap32(vptr[3]); 660 socklen_t optlen = tswap32(vptr[4]); 661 662 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 663 } 664 break; 665 case SOCKOP_getsockopt: 666 { 667 int sockfd = tswap32(vptr[0]); 668 int level = tswap32(vptr[1]); 669 int optname = tswap32(vptr[2]); 670 void *optval = (void *)tswap32(vptr[3]); 671 uint32_t *target_len = (void *)tswap32(vptr[4]); 672 socklen_t optlen = tswap32(*target_len); 673 674 ret = do_getsockopt(sockfd, level, optname, optval, &optlen); 675 if (!is_error(ret)) 676 *target_len = tswap32(optlen); 677 } 678 break; 679 default: 680 gemu_log("Unsupported socketcall: %d\n", num); 681 ret = -ENOSYS; 682 break; 683 } 684 return ret; 685 } 686 687 /* kernel structure types definitions */ 688 #define IFNAMSIZ 16 689 690 #define STRUCT(name, list...) STRUCT_ ## name, 691 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 692 enum { 693 #include "syscall_types.h" 694 }; 695 #undef STRUCT 696 #undef STRUCT_SPECIAL 697 698 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 699 #define STRUCT_SPECIAL(name) 700 #include "syscall_types.h" 701 #undef STRUCT 702 #undef STRUCT_SPECIAL 703 704 typedef struct IOCTLEntry { 705 int target_cmd; 706 int host_cmd; 707 const char *name; 708 int access; 709 const argtype arg_type[5]; 710 } IOCTLEntry; 711 712 #define IOC_R 0x0001 713 #define IOC_W 0x0002 714 #define IOC_RW (IOC_R | IOC_W) 715 716 #define MAX_STRUCT_SIZE 4096 717 718 const IOCTLEntry ioctl_entries[] = { 719 #define IOCTL(cmd, access, types...) \ 720 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 721 #include "ioctls.h" 722 { 0, 0, }, 723 }; 724 725 static long do_ioctl(long fd, long cmd, long arg) 726 { 727 const IOCTLEntry *ie; 728 const argtype *arg_type; 729 long ret; 730 uint8_t buf_temp[MAX_STRUCT_SIZE]; 731 732 ie = ioctl_entries; 733 for(;;) { 734 if (ie->target_cmd == 0) { 735 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 736 return -ENOSYS; 737 } 738 if (ie->target_cmd == cmd) 739 break; 740 ie++; 741 } 742 arg_type = ie->arg_type; 743 #if defined(DEBUG) 744 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 745 #endif 746 switch(arg_type[0]) { 747 case TYPE_NULL: 748 /* no argument */ 749 ret = get_errno(ioctl(fd, ie->host_cmd)); 750 break; 751 case TYPE_PTRVOID: 752 case TYPE_INT: 753 /* int argment */ 754 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 755 break; 756 case TYPE_PTR: 757 arg_type++; 758 switch(ie->access) { 759 case IOC_R: 760 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 761 if (!is_error(ret)) { 762 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET); 763 } 764 break; 765 case IOC_W: 766 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST); 767 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 768 break; 769 default: 770 case IOC_RW: 771 thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST); 772 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 773 if (!is_error(ret)) { 774 thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET); 775 } 776 break; 777 } 778 break; 779 default: 780 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 781 ret = -ENOSYS; 782 break; 783 } 784 return ret; 785 } 786 787 bitmask_transtbl iflag_tbl[] = { 788 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 789 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 790 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 791 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 792 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 793 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 794 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 795 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 796 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 797 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 798 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 799 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 800 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 801 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 802 { 0, 0, 0, 0 } 803 }; 804 805 bitmask_transtbl oflag_tbl[] = { 806 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 807 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 808 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 809 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 810 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 811 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 812 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 813 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 814 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 815 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 816 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 817 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 818 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 819 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 820 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 821 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 822 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 823 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 824 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 825 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 826 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 827 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 828 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 829 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 830 { 0, 0, 0, 0 } 831 }; 832 833 bitmask_transtbl cflag_tbl[] = { 834 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 835 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 836 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 837 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 838 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 839 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 840 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 841 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 842 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 843 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 844 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 845 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 846 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 847 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 848 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 849 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 850 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 851 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 852 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 853 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 854 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 855 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 856 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 857 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 858 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 859 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 860 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 861 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 862 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 863 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 864 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 865 { 0, 0, 0, 0 } 866 }; 867 868 bitmask_transtbl lflag_tbl[] = { 869 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 870 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 871 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 872 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 873 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 874 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 875 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 876 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 877 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 878 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 879 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 880 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 881 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 882 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 883 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 884 { 0, 0, 0, 0 } 885 }; 886 887 static void target_to_host_termios (void *dst, const void *src) 888 { 889 struct host_termios *host = dst; 890 const struct target_termios *target = src; 891 892 host->c_iflag = 893 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 894 host->c_oflag = 895 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 896 host->c_cflag = 897 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 898 host->c_lflag = 899 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 900 host->c_line = target->c_line; 901 902 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 903 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 904 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 905 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 906 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 907 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 908 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 909 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 910 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 911 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 912 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 913 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 914 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 915 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 916 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 917 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 918 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 919 } 920 921 static void host_to_target_termios (void *dst, const void *src) 922 { 923 struct target_termios *target = dst; 924 const struct host_termios *host = src; 925 926 target->c_iflag = 927 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 928 target->c_oflag = 929 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 930 target->c_cflag = 931 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 932 target->c_lflag = 933 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 934 target->c_line = host->c_line; 935 936 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 937 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 938 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 939 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 940 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 941 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 942 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 943 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 944 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 945 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 946 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 947 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 948 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 949 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 950 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 951 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 952 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 953 } 954 955 StructEntry struct_termios_def = { 956 .convert = { host_to_target_termios, target_to_host_termios }, 957 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 958 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 959 }; 960 961 #ifdef TARGET_I386 962 963 /* NOTE: there is really one LDT for all the threads */ 964 uint8_t *ldt_table; 965 966 static int read_ldt(void *ptr, unsigned long bytecount) 967 { 968 int size; 969 970 if (!ldt_table) 971 return 0; 972 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 973 if (size > bytecount) 974 size = bytecount; 975 memcpy(ptr, ldt_table, size); 976 return size; 977 } 978 979 /* XXX: add locking support */ 980 static int write_ldt(CPUX86State *env, 981 void *ptr, unsigned long bytecount, int oldmode) 982 { 983 struct target_modify_ldt_ldt_s ldt_info; 984 int seg_32bit, contents, read_exec_only, limit_in_pages; 985 int seg_not_present, useable; 986 uint32_t *lp, entry_1, entry_2; 987 988 if (bytecount != sizeof(ldt_info)) 989 return -EINVAL; 990 memcpy(&ldt_info, ptr, sizeof(ldt_info)); 991 tswap32s(&ldt_info.entry_number); 992 tswapls((long *)&ldt_info.base_addr); 993 tswap32s(&ldt_info.limit); 994 tswap32s(&ldt_info.flags); 995 996 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 997 return -EINVAL; 998 seg_32bit = ldt_info.flags & 1; 999 contents = (ldt_info.flags >> 1) & 3; 1000 read_exec_only = (ldt_info.flags >> 3) & 1; 1001 limit_in_pages = (ldt_info.flags >> 4) & 1; 1002 seg_not_present = (ldt_info.flags >> 5) & 1; 1003 useable = (ldt_info.flags >> 6) & 1; 1004 1005 if (contents == 3) { 1006 if (oldmode) 1007 return -EINVAL; 1008 if (seg_not_present == 0) 1009 return -EINVAL; 1010 } 1011 /* allocate the LDT */ 1012 if (!ldt_table) { 1013 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1014 if (!ldt_table) 1015 return -ENOMEM; 1016 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1017 env->ldt.base = ldt_table; 1018 env->ldt.limit = 0xffff; 1019 } 1020 1021 /* NOTE: same code as Linux kernel */ 1022 /* Allow LDTs to be cleared by the user. */ 1023 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1024 if (oldmode || 1025 (contents == 0 && 1026 read_exec_only == 1 && 1027 seg_32bit == 0 && 1028 limit_in_pages == 0 && 1029 seg_not_present == 1 && 1030 useable == 0 )) { 1031 entry_1 = 0; 1032 entry_2 = 0; 1033 goto install; 1034 } 1035 } 1036 1037 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1038 (ldt_info.limit & 0x0ffff); 1039 entry_2 = (ldt_info.base_addr & 0xff000000) | 1040 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1041 (ldt_info.limit & 0xf0000) | 1042 ((read_exec_only ^ 1) << 9) | 1043 (contents << 10) | 1044 ((seg_not_present ^ 1) << 15) | 1045 (seg_32bit << 22) | 1046 (limit_in_pages << 23) | 1047 0x7000; 1048 if (!oldmode) 1049 entry_2 |= (useable << 20); 1050 1051 /* Install the new entry ... */ 1052 install: 1053 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1054 lp[0] = tswap32(entry_1); 1055 lp[1] = tswap32(entry_2); 1056 return 0; 1057 } 1058 1059 /* specific and weird i386 syscalls */ 1060 int do_modify_ldt(CPUX86State *env, int func, void *ptr, unsigned long bytecount) 1061 { 1062 int ret = -ENOSYS; 1063 1064 switch (func) { 1065 case 0: 1066 ret = read_ldt(ptr, bytecount); 1067 break; 1068 case 1: 1069 ret = write_ldt(env, ptr, bytecount, 1); 1070 break; 1071 case 0x11: 1072 ret = write_ldt(env, ptr, bytecount, 0); 1073 break; 1074 } 1075 return ret; 1076 } 1077 1078 /* this stack is the equivalent of the kernel stack associated with a 1079 thread/process */ 1080 #define NEW_STACK_SIZE 8192 1081 1082 static int clone_func(void *arg) 1083 { 1084 CPUX86State *env = arg; 1085 cpu_loop(env); 1086 /* never exits */ 1087 return 0; 1088 } 1089 1090 int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp) 1091 { 1092 int ret; 1093 TaskState *ts; 1094 uint8_t *new_stack; 1095 CPUX86State *new_env; 1096 1097 if (flags & CLONE_VM) { 1098 if (!newsp) 1099 newsp = env->regs[R_ESP]; 1100 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 1101 memset(ts, 0, sizeof(TaskState)); 1102 new_stack = ts->stack; 1103 ts->used = 1; 1104 /* add in task state list */ 1105 ts->next = first_task_state; 1106 first_task_state = ts; 1107 /* we create a new CPU instance. */ 1108 new_env = cpu_x86_init(); 1109 memcpy(new_env, env, sizeof(CPUX86State)); 1110 new_env->regs[R_ESP] = newsp; 1111 new_env->regs[R_EAX] = 0; 1112 new_env->opaque = ts; 1113 #ifdef __ia64__ 1114 ret = clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1115 #else 1116 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 1117 #endif 1118 } else { 1119 /* if no CLONE_VM, we consider it is a fork */ 1120 if ((flags & ~CSIGNAL) != 0) 1121 return -EINVAL; 1122 ret = fork(); 1123 } 1124 return ret; 1125 } 1126 1127 #endif 1128 1129 static long do_fcntl(int fd, int cmd, unsigned long arg) 1130 { 1131 struct flock fl; 1132 struct target_flock *target_fl = (void *)arg; 1133 long ret; 1134 1135 switch(cmd) { 1136 case TARGET_F_GETLK: 1137 ret = fcntl(fd, cmd, &fl); 1138 if (ret == 0) { 1139 target_fl->l_type = tswap16(fl.l_type); 1140 target_fl->l_whence = tswap16(fl.l_whence); 1141 target_fl->l_start = tswapl(fl.l_start); 1142 target_fl->l_len = tswapl(fl.l_len); 1143 target_fl->l_pid = tswapl(fl.l_pid); 1144 } 1145 break; 1146 1147 case TARGET_F_SETLK: 1148 case TARGET_F_SETLKW: 1149 fl.l_type = tswap16(target_fl->l_type); 1150 fl.l_whence = tswap16(target_fl->l_whence); 1151 fl.l_start = tswapl(target_fl->l_start); 1152 fl.l_len = tswapl(target_fl->l_len); 1153 fl.l_pid = tswapl(target_fl->l_pid); 1154 ret = fcntl(fd, cmd, &fl); 1155 break; 1156 1157 case TARGET_F_GETLK64: 1158 case TARGET_F_SETLK64: 1159 case TARGET_F_SETLKW64: 1160 ret = -1; 1161 errno = EINVAL; 1162 break; 1163 1164 default: 1165 ret = fcntl(fd, cmd, arg); 1166 break; 1167 } 1168 return ret; 1169 } 1170 1171 1172 #define high2lowuid(x) (x) 1173 #define high2lowgid(x) (x) 1174 #define low2highuid(x) (x) 1175 #define low2highgid(x) (x) 1176 1177 void syscall_init(void) 1178 { 1179 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 1180 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 1181 #include "syscall_types.h" 1182 #undef STRUCT 1183 #undef STRUCT_SPECIAL 1184 } 1185 1186 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 1187 long arg4, long arg5, long arg6) 1188 { 1189 long ret; 1190 struct stat st; 1191 struct kernel_statfs *stfs; 1192 1193 #ifdef DEBUG 1194 gemu_log("syscall %d\n", num); 1195 #endif 1196 switch(num) { 1197 case TARGET_NR_exit: 1198 #ifdef HAVE_GPROF 1199 _mcleanup(); 1200 #endif 1201 /* XXX: should free thread stack and CPU env */ 1202 _exit(arg1); 1203 ret = 0; /* avoid warning */ 1204 break; 1205 case TARGET_NR_read: 1206 page_unprotect_range((void *)arg2, arg3); 1207 ret = get_errno(read(arg1, (void *)arg2, arg3)); 1208 break; 1209 case TARGET_NR_write: 1210 ret = get_errno(write(arg1, (void *)arg2, arg3)); 1211 break; 1212 case TARGET_NR_open: 1213 ret = get_errno(open(path((const char *)arg1), arg2, arg3)); 1214 break; 1215 case TARGET_NR_close: 1216 ret = get_errno(close(arg1)); 1217 break; 1218 case TARGET_NR_brk: 1219 ret = do_brk((char *)arg1); 1220 break; 1221 case TARGET_NR_fork: 1222 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 1223 break; 1224 case TARGET_NR_waitpid: 1225 { 1226 int *status = (int *)arg2; 1227 ret = get_errno(waitpid(arg1, status, arg3)); 1228 if (!is_error(ret) && status) 1229 tswapls((long *)&status); 1230 } 1231 break; 1232 case TARGET_NR_creat: 1233 ret = get_errno(creat((const char *)arg1, arg2)); 1234 break; 1235 case TARGET_NR_link: 1236 ret = get_errno(link((const char *)arg1, (const char *)arg2)); 1237 break; 1238 case TARGET_NR_unlink: 1239 ret = get_errno(unlink((const char *)arg1)); 1240 break; 1241 case TARGET_NR_execve: 1242 { 1243 char **argp, **envp; 1244 int argc, envc; 1245 uint32_t *p; 1246 char **q; 1247 1248 argc = 0; 1249 for (p = (void *)arg2; *p; p++) 1250 argc++; 1251 envc = 0; 1252 for (p = (void *)arg3; *p; p++) 1253 envc++; 1254 1255 argp = alloca((argc + 1) * sizeof(void *)); 1256 envp = alloca((envc + 1) * sizeof(void *)); 1257 1258 for (p = (void *)arg2, q = argp; *p; p++, q++) 1259 *q = (void *)tswap32(*p); 1260 *q = NULL; 1261 1262 for (p = (void *)arg3, q = envp; *p; p++, q++) 1263 *q = (void *)tswap32(*p); 1264 *q = NULL; 1265 1266 ret = get_errno(execve((const char *)arg1, argp, envp)); 1267 } 1268 break; 1269 case TARGET_NR_chdir: 1270 ret = get_errno(chdir((const char *)arg1)); 1271 break; 1272 case TARGET_NR_time: 1273 { 1274 int *time_ptr = (int *)arg1; 1275 ret = get_errno(time((time_t *)time_ptr)); 1276 if (!is_error(ret) && time_ptr) 1277 tswap32s(time_ptr); 1278 } 1279 break; 1280 case TARGET_NR_mknod: 1281 ret = get_errno(mknod((const char *)arg1, arg2, arg3)); 1282 break; 1283 case TARGET_NR_chmod: 1284 ret = get_errno(chmod((const char *)arg1, arg2)); 1285 break; 1286 case TARGET_NR_lchown: 1287 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 1288 break; 1289 case TARGET_NR_break: 1290 goto unimplemented; 1291 case TARGET_NR_oldstat: 1292 goto unimplemented; 1293 case TARGET_NR_lseek: 1294 ret = get_errno(lseek(arg1, arg2, arg3)); 1295 break; 1296 case TARGET_NR_getpid: 1297 ret = get_errno(getpid()); 1298 break; 1299 case TARGET_NR_mount: 1300 /* need to look at the data field */ 1301 goto unimplemented; 1302 case TARGET_NR_umount: 1303 ret = get_errno(umount((const char *)arg1)); 1304 break; 1305 case TARGET_NR_setuid: 1306 ret = get_errno(setuid(low2highuid(arg1))); 1307 break; 1308 case TARGET_NR_getuid: 1309 ret = get_errno(getuid()); 1310 break; 1311 case TARGET_NR_stime: 1312 { 1313 int *time_ptr = (int *)arg1; 1314 if (time_ptr) 1315 tswap32s(time_ptr); 1316 ret = get_errno(stime((time_t *)time_ptr)); 1317 } 1318 break; 1319 case TARGET_NR_ptrace: 1320 goto unimplemented; 1321 case TARGET_NR_alarm: 1322 ret = alarm(arg1); 1323 break; 1324 case TARGET_NR_oldfstat: 1325 goto unimplemented; 1326 case TARGET_NR_pause: 1327 ret = get_errno(pause()); 1328 break; 1329 case TARGET_NR_utime: 1330 goto unimplemented; 1331 case TARGET_NR_stty: 1332 goto unimplemented; 1333 case TARGET_NR_gtty: 1334 goto unimplemented; 1335 case TARGET_NR_access: 1336 ret = get_errno(access((const char *)arg1, arg2)); 1337 break; 1338 case TARGET_NR_nice: 1339 ret = get_errno(nice(arg1)); 1340 break; 1341 case TARGET_NR_ftime: 1342 goto unimplemented; 1343 case TARGET_NR_sync: 1344 sync(); 1345 ret = 0; 1346 break; 1347 case TARGET_NR_kill: 1348 ret = get_errno(kill(arg1, arg2)); 1349 break; 1350 case TARGET_NR_rename: 1351 ret = get_errno(rename((const char *)arg1, (const char *)arg2)); 1352 break; 1353 case TARGET_NR_mkdir: 1354 ret = get_errno(mkdir((const char *)arg1, arg2)); 1355 break; 1356 case TARGET_NR_rmdir: 1357 ret = get_errno(rmdir((const char *)arg1)); 1358 break; 1359 case TARGET_NR_dup: 1360 ret = get_errno(dup(arg1)); 1361 break; 1362 case TARGET_NR_pipe: 1363 { 1364 int *pipe_ptr = (int *)arg1; 1365 ret = get_errno(pipe(pipe_ptr)); 1366 if (!is_error(ret)) { 1367 tswap32s(&pipe_ptr[0]); 1368 tswap32s(&pipe_ptr[1]); 1369 } 1370 } 1371 break; 1372 case TARGET_NR_times: 1373 { 1374 struct target_tms *tmsp = (void *)arg1; 1375 struct tms tms; 1376 ret = get_errno(times(&tms)); 1377 if (tmsp) { 1378 tmsp->tms_utime = tswapl(tms.tms_utime); 1379 tmsp->tms_stime = tswapl(tms.tms_stime); 1380 tmsp->tms_cutime = tswapl(tms.tms_cutime); 1381 tmsp->tms_cstime = tswapl(tms.tms_cstime); 1382 } 1383 } 1384 break; 1385 case TARGET_NR_prof: 1386 goto unimplemented; 1387 case TARGET_NR_setgid: 1388 ret = get_errno(setgid(low2highgid(arg1))); 1389 break; 1390 case TARGET_NR_getgid: 1391 ret = get_errno(getgid()); 1392 break; 1393 case TARGET_NR_signal: 1394 goto unimplemented; 1395 case TARGET_NR_geteuid: 1396 ret = get_errno(geteuid()); 1397 break; 1398 case TARGET_NR_getegid: 1399 ret = get_errno(getegid()); 1400 break; 1401 case TARGET_NR_acct: 1402 goto unimplemented; 1403 case TARGET_NR_umount2: 1404 ret = get_errno(umount2((const char *)arg1, arg2)); 1405 break; 1406 case TARGET_NR_lock: 1407 goto unimplemented; 1408 case TARGET_NR_ioctl: 1409 ret = do_ioctl(arg1, arg2, arg3); 1410 break; 1411 case TARGET_NR_fcntl: 1412 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 1413 break; 1414 case TARGET_NR_mpx: 1415 goto unimplemented; 1416 case TARGET_NR_setpgid: 1417 ret = get_errno(setpgid(arg1, arg2)); 1418 break; 1419 case TARGET_NR_ulimit: 1420 goto unimplemented; 1421 case TARGET_NR_oldolduname: 1422 goto unimplemented; 1423 case TARGET_NR_umask: 1424 ret = get_errno(umask(arg1)); 1425 break; 1426 case TARGET_NR_chroot: 1427 ret = get_errno(chroot((const char *)arg1)); 1428 break; 1429 case TARGET_NR_ustat: 1430 goto unimplemented; 1431 case TARGET_NR_dup2: 1432 ret = get_errno(dup2(arg1, arg2)); 1433 break; 1434 case TARGET_NR_getppid: 1435 ret = get_errno(getppid()); 1436 break; 1437 case TARGET_NR_getpgrp: 1438 ret = get_errno(getpgrp()); 1439 break; 1440 case TARGET_NR_setsid: 1441 ret = get_errno(setsid()); 1442 break; 1443 case TARGET_NR_sigaction: 1444 { 1445 struct target_old_sigaction *old_act = (void *)arg2; 1446 struct target_old_sigaction *old_oact = (void *)arg3; 1447 struct target_sigaction act, oact, *pact; 1448 if (old_act) { 1449 act._sa_handler = old_act->_sa_handler; 1450 target_siginitset(&act.sa_mask, old_act->sa_mask); 1451 act.sa_flags = old_act->sa_flags; 1452 act.sa_restorer = old_act->sa_restorer; 1453 pact = &act; 1454 } else { 1455 pact = NULL; 1456 } 1457 ret = get_errno(do_sigaction(arg1, pact, &oact)); 1458 if (!is_error(ret) && old_oact) { 1459 old_oact->_sa_handler = oact._sa_handler; 1460 old_oact->sa_mask = oact.sa_mask.sig[0]; 1461 old_oact->sa_flags = oact.sa_flags; 1462 old_oact->sa_restorer = oact.sa_restorer; 1463 } 1464 } 1465 break; 1466 case TARGET_NR_rt_sigaction: 1467 ret = get_errno(do_sigaction(arg1, (void *)arg2, (void *)arg3)); 1468 break; 1469 case TARGET_NR_sgetmask: 1470 { 1471 sigset_t cur_set; 1472 target_ulong target_set; 1473 sigprocmask(0, NULL, &cur_set); 1474 host_to_target_old_sigset(&target_set, &cur_set); 1475 ret = target_set; 1476 } 1477 break; 1478 case TARGET_NR_ssetmask: 1479 { 1480 sigset_t set, oset, cur_set; 1481 target_ulong target_set = arg1; 1482 sigprocmask(0, NULL, &cur_set); 1483 target_to_host_old_sigset(&set, &target_set); 1484 sigorset(&set, &set, &cur_set); 1485 sigprocmask(SIG_SETMASK, &set, &oset); 1486 host_to_target_old_sigset(&target_set, &oset); 1487 ret = target_set; 1488 } 1489 break; 1490 case TARGET_NR_sigprocmask: 1491 { 1492 int how = arg1; 1493 sigset_t set, oldset, *set_ptr; 1494 target_ulong *pset = (void *)arg2, *poldset = (void *)arg3; 1495 1496 if (pset) { 1497 switch(how) { 1498 case TARGET_SIG_BLOCK: 1499 how = SIG_BLOCK; 1500 break; 1501 case TARGET_SIG_UNBLOCK: 1502 how = SIG_UNBLOCK; 1503 break; 1504 case TARGET_SIG_SETMASK: 1505 how = SIG_SETMASK; 1506 break; 1507 default: 1508 ret = -EINVAL; 1509 goto fail; 1510 } 1511 target_to_host_old_sigset(&set, pset); 1512 set_ptr = &set; 1513 } else { 1514 how = 0; 1515 set_ptr = NULL; 1516 } 1517 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 1518 if (!is_error(ret) && poldset) { 1519 host_to_target_old_sigset(poldset, &oldset); 1520 } 1521 } 1522 break; 1523 case TARGET_NR_rt_sigprocmask: 1524 { 1525 int how = arg1; 1526 sigset_t set, oldset, *set_ptr; 1527 target_sigset_t *pset = (void *)arg2; 1528 target_sigset_t *poldset = (void *)arg3; 1529 1530 if (pset) { 1531 switch(how) { 1532 case TARGET_SIG_BLOCK: 1533 how = SIG_BLOCK; 1534 break; 1535 case TARGET_SIG_UNBLOCK: 1536 how = SIG_UNBLOCK; 1537 break; 1538 case TARGET_SIG_SETMASK: 1539 how = SIG_SETMASK; 1540 break; 1541 default: 1542 ret = -EINVAL; 1543 goto fail; 1544 } 1545 target_to_host_sigset(&set, pset); 1546 set_ptr = &set; 1547 } else { 1548 how = 0; 1549 set_ptr = NULL; 1550 } 1551 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 1552 if (!is_error(ret) && poldset) { 1553 host_to_target_sigset(poldset, &oldset); 1554 } 1555 } 1556 break; 1557 case TARGET_NR_sigpending: 1558 { 1559 sigset_t set; 1560 ret = get_errno(sigpending(&set)); 1561 if (!is_error(ret)) { 1562 host_to_target_old_sigset((target_ulong *)arg1, &set); 1563 } 1564 } 1565 break; 1566 case TARGET_NR_rt_sigpending: 1567 { 1568 sigset_t set; 1569 ret = get_errno(sigpending(&set)); 1570 if (!is_error(ret)) { 1571 host_to_target_sigset((target_sigset_t *)arg1, &set); 1572 } 1573 } 1574 break; 1575 case TARGET_NR_sigsuspend: 1576 { 1577 sigset_t set; 1578 target_to_host_old_sigset(&set, (target_ulong *)arg1); 1579 ret = get_errno(sigsuspend(&set)); 1580 } 1581 break; 1582 case TARGET_NR_rt_sigsuspend: 1583 { 1584 sigset_t set; 1585 target_to_host_sigset(&set, (target_sigset_t *)arg1); 1586 ret = get_errno(sigsuspend(&set)); 1587 } 1588 break; 1589 case TARGET_NR_rt_sigtimedwait: 1590 { 1591 target_sigset_t *target_set = (void *)arg1; 1592 target_siginfo_t *target_uinfo = (void *)arg2; 1593 struct target_timespec *target_uts = (void *)arg3; 1594 sigset_t set; 1595 struct timespec uts, *puts; 1596 siginfo_t uinfo; 1597 1598 target_to_host_sigset(&set, target_set); 1599 if (target_uts) { 1600 puts = &uts; 1601 puts->tv_sec = tswapl(target_uts->tv_sec); 1602 puts->tv_nsec = tswapl(target_uts->tv_nsec); 1603 } else { 1604 puts = NULL; 1605 } 1606 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 1607 if (!is_error(ret) && target_uinfo) { 1608 host_to_target_siginfo(target_uinfo, &uinfo); 1609 } 1610 } 1611 break; 1612 case TARGET_NR_rt_sigqueueinfo: 1613 { 1614 siginfo_t uinfo; 1615 target_to_host_siginfo(&uinfo, (target_siginfo_t *)arg3); 1616 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 1617 } 1618 break; 1619 case TARGET_NR_sigreturn: 1620 /* NOTE: ret is eax, so not transcoding must be done */ 1621 ret = do_sigreturn(cpu_env); 1622 break; 1623 case TARGET_NR_rt_sigreturn: 1624 /* NOTE: ret is eax, so not transcoding must be done */ 1625 ret = do_rt_sigreturn(cpu_env); 1626 break; 1627 case TARGET_NR_setreuid: 1628 ret = get_errno(setreuid(arg1, arg2)); 1629 break; 1630 case TARGET_NR_setregid: 1631 ret = get_errno(setregid(arg1, arg2)); 1632 break; 1633 case TARGET_NR_sethostname: 1634 ret = get_errno(sethostname((const char *)arg1, arg2)); 1635 break; 1636 case TARGET_NR_setrlimit: 1637 { 1638 /* XXX: convert resource ? */ 1639 int resource = arg1; 1640 struct target_rlimit *target_rlim = (void *)arg2; 1641 struct rlimit rlim; 1642 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 1643 rlim.rlim_max = tswapl(target_rlim->rlim_max); 1644 ret = get_errno(setrlimit(resource, &rlim)); 1645 } 1646 break; 1647 case TARGET_NR_getrlimit: 1648 { 1649 /* XXX: convert resource ? */ 1650 int resource = arg1; 1651 struct target_rlimit *target_rlim = (void *)arg2; 1652 struct rlimit rlim; 1653 1654 ret = get_errno(getrlimit(resource, &rlim)); 1655 if (!is_error(ret)) { 1656 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 1657 target_rlim->rlim_max = tswapl(rlim.rlim_max); 1658 } 1659 } 1660 break; 1661 case TARGET_NR_getrusage: 1662 { 1663 struct rusage rusage; 1664 struct target_rusage *target_rusage = (void *)arg2; 1665 ret = get_errno(getrusage(arg1, &rusage)); 1666 if (!is_error(ret)) { 1667 host_to_target_rusage(target_rusage, &rusage); 1668 } 1669 } 1670 break; 1671 case TARGET_NR_gettimeofday: 1672 { 1673 struct target_timeval *target_tv = (void *)arg1; 1674 struct timeval tv; 1675 ret = get_errno(gettimeofday(&tv, NULL)); 1676 if (!is_error(ret)) { 1677 host_to_target_timeval(target_tv, &tv); 1678 } 1679 } 1680 break; 1681 case TARGET_NR_settimeofday: 1682 { 1683 struct target_timeval *target_tv = (void *)arg1; 1684 struct timeval tv; 1685 target_to_host_timeval(&tv, target_tv); 1686 ret = get_errno(settimeofday(&tv, NULL)); 1687 } 1688 break; 1689 case TARGET_NR_getgroups: 1690 { 1691 int gidsetsize = arg1; 1692 uint16_t *target_grouplist = (void *)arg2; 1693 gid_t *grouplist; 1694 int i; 1695 1696 grouplist = alloca(gidsetsize * sizeof(gid_t)); 1697 ret = get_errno(getgroups(gidsetsize, grouplist)); 1698 if (!is_error(ret)) { 1699 for(i = 0;i < gidsetsize; i++) 1700 target_grouplist[i] = tswap16(grouplist[i]); 1701 } 1702 } 1703 break; 1704 case TARGET_NR_setgroups: 1705 { 1706 int gidsetsize = arg1; 1707 uint16_t *target_grouplist = (void *)arg2; 1708 gid_t *grouplist; 1709 int i; 1710 1711 grouplist = alloca(gidsetsize * sizeof(gid_t)); 1712 for(i = 0;i < gidsetsize; i++) 1713 grouplist[i] = tswap16(target_grouplist[i]); 1714 ret = get_errno(setgroups(gidsetsize, grouplist)); 1715 } 1716 break; 1717 case TARGET_NR_select: 1718 goto unimplemented; 1719 case TARGET_NR_symlink: 1720 ret = get_errno(symlink((const char *)arg1, (const char *)arg2)); 1721 break; 1722 case TARGET_NR_oldlstat: 1723 goto unimplemented; 1724 case TARGET_NR_readlink: 1725 ret = get_errno(readlink(path((const char *)arg1), (char *)arg2, arg3)); 1726 break; 1727 case TARGET_NR_uselib: 1728 goto unimplemented; 1729 case TARGET_NR_swapon: 1730 ret = get_errno(swapon((const char *)arg1, arg2)); 1731 break; 1732 case TARGET_NR_reboot: 1733 goto unimplemented; 1734 case TARGET_NR_readdir: 1735 goto unimplemented; 1736 #ifdef TARGET_I386 1737 case TARGET_NR_mmap: 1738 { 1739 uint32_t v1, v2, v3, v4, v5, v6, *vptr; 1740 vptr = (uint32_t *)arg1; 1741 v1 = tswap32(vptr[0]); 1742 v2 = tswap32(vptr[1]); 1743 v3 = tswap32(vptr[2]); 1744 v4 = tswap32(vptr[3]); 1745 v5 = tswap32(vptr[4]); 1746 v6 = tswap32(vptr[5]); 1747 ret = get_errno(target_mmap(v1, v2, v3, v4, v5, v6)); 1748 } 1749 break; 1750 #endif 1751 #ifdef TARGET_I386 1752 case TARGET_NR_mmap2: 1753 #else 1754 case TARGET_NR_mmap: 1755 #endif 1756 ret = get_errno(target_mmap(arg1, arg2, arg3, arg4, arg5, arg6)); 1757 break; 1758 case TARGET_NR_munmap: 1759 ret = get_errno(target_munmap(arg1, arg2)); 1760 break; 1761 case TARGET_NR_mprotect: 1762 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 1763 break; 1764 case TARGET_NR_mremap: 1765 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 1766 break; 1767 case TARGET_NR_msync: 1768 ret = get_errno(msync((void *)arg1, arg2, arg3)); 1769 break; 1770 case TARGET_NR_mlock: 1771 ret = get_errno(mlock((void *)arg1, arg2)); 1772 break; 1773 case TARGET_NR_munlock: 1774 ret = get_errno(munlock((void *)arg1, arg2)); 1775 break; 1776 case TARGET_NR_mlockall: 1777 ret = get_errno(mlockall(arg1)); 1778 break; 1779 case TARGET_NR_munlockall: 1780 ret = get_errno(munlockall()); 1781 break; 1782 case TARGET_NR_truncate: 1783 ret = get_errno(truncate((const char *)arg1, arg2)); 1784 break; 1785 case TARGET_NR_ftruncate: 1786 ret = get_errno(ftruncate(arg1, arg2)); 1787 break; 1788 case TARGET_NR_fchmod: 1789 ret = get_errno(fchmod(arg1, arg2)); 1790 break; 1791 case TARGET_NR_fchown: 1792 ret = get_errno(fchown(arg1, arg2, arg3)); 1793 break; 1794 case TARGET_NR_getpriority: 1795 ret = get_errno(getpriority(arg1, arg2)); 1796 break; 1797 case TARGET_NR_setpriority: 1798 ret = get_errno(setpriority(arg1, arg2, arg3)); 1799 break; 1800 case TARGET_NR_profil: 1801 goto unimplemented; 1802 case TARGET_NR_statfs: 1803 stfs = (void *)arg2; 1804 ret = get_errno(sys_statfs(path((const char *)arg1), stfs)); 1805 convert_statfs: 1806 if (!is_error(ret)) { 1807 tswap32s(&stfs->f_type); 1808 tswap32s(&stfs->f_bsize); 1809 tswap32s(&stfs->f_blocks); 1810 tswap32s(&stfs->f_bfree); 1811 tswap32s(&stfs->f_bavail); 1812 tswap32s(&stfs->f_files); 1813 tswap32s(&stfs->f_ffree); 1814 tswap32s(&stfs->f_fsid.val[0]); 1815 tswap32s(&stfs->f_fsid.val[1]); 1816 tswap32s(&stfs->f_namelen); 1817 } 1818 break; 1819 case TARGET_NR_fstatfs: 1820 stfs = (void *)arg2; 1821 ret = get_errno(sys_fstatfs(arg1, stfs)); 1822 goto convert_statfs; 1823 case TARGET_NR_ioperm: 1824 goto unimplemented; 1825 case TARGET_NR_socketcall: 1826 ret = do_socketcall(arg1, (int32_t *)arg2); 1827 break; 1828 case TARGET_NR_syslog: 1829 goto unimplemented; 1830 case TARGET_NR_setitimer: 1831 { 1832 struct target_itimerval *target_value = (void *)arg2; 1833 struct target_itimerval *target_ovalue = (void *)arg3; 1834 struct itimerval value, ovalue, *pvalue; 1835 1836 if (target_value) { 1837 pvalue = &value; 1838 target_to_host_timeval(&pvalue->it_interval, 1839 &target_value->it_interval); 1840 target_to_host_timeval(&pvalue->it_value, 1841 &target_value->it_value); 1842 } else { 1843 pvalue = NULL; 1844 } 1845 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 1846 if (!is_error(ret) && target_ovalue) { 1847 host_to_target_timeval(&target_ovalue->it_interval, 1848 &ovalue.it_interval); 1849 host_to_target_timeval(&target_ovalue->it_value, 1850 &ovalue.it_value); 1851 } 1852 } 1853 break; 1854 case TARGET_NR_getitimer: 1855 { 1856 struct target_itimerval *target_value = (void *)arg2; 1857 struct itimerval value; 1858 1859 ret = get_errno(getitimer(arg1, &value)); 1860 if (!is_error(ret) && target_value) { 1861 host_to_target_timeval(&target_value->it_interval, 1862 &value.it_interval); 1863 host_to_target_timeval(&target_value->it_value, 1864 &value.it_value); 1865 } 1866 } 1867 break; 1868 case TARGET_NR_stat: 1869 ret = get_errno(stat(path((const char *)arg1), &st)); 1870 goto do_stat; 1871 case TARGET_NR_lstat: 1872 ret = get_errno(lstat(path((const char *)arg1), &st)); 1873 goto do_stat; 1874 case TARGET_NR_fstat: 1875 { 1876 ret = get_errno(fstat(arg1, &st)); 1877 do_stat: 1878 if (!is_error(ret)) { 1879 struct target_stat *target_st = (void *)arg2; 1880 target_st->st_dev = tswap16(st.st_dev); 1881 target_st->st_ino = tswapl(st.st_ino); 1882 target_st->st_mode = tswap16(st.st_mode); 1883 target_st->st_nlink = tswap16(st.st_nlink); 1884 target_st->st_uid = tswap16(st.st_uid); 1885 target_st->st_gid = tswap16(st.st_gid); 1886 target_st->st_rdev = tswap16(st.st_rdev); 1887 target_st->st_size = tswapl(st.st_size); 1888 target_st->st_blksize = tswapl(st.st_blksize); 1889 target_st->st_blocks = tswapl(st.st_blocks); 1890 target_st->target_st_atime = tswapl(st.st_atime); 1891 target_st->target_st_mtime = tswapl(st.st_mtime); 1892 target_st->target_st_ctime = tswapl(st.st_ctime); 1893 } 1894 } 1895 break; 1896 case TARGET_NR_olduname: 1897 goto unimplemented; 1898 case TARGET_NR_iopl: 1899 goto unimplemented; 1900 case TARGET_NR_vhangup: 1901 ret = get_errno(vhangup()); 1902 break; 1903 case TARGET_NR_idle: 1904 goto unimplemented; 1905 case TARGET_NR_wait4: 1906 { 1907 int status; 1908 target_long *status_ptr = (void *)arg2; 1909 struct rusage rusage, *rusage_ptr; 1910 struct target_rusage *target_rusage = (void *)arg4; 1911 if (target_rusage) 1912 rusage_ptr = &rusage; 1913 else 1914 rusage_ptr = NULL; 1915 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 1916 if (!is_error(ret)) { 1917 if (status_ptr) 1918 *status_ptr = tswap32(status); 1919 if (target_rusage) { 1920 host_to_target_rusage(target_rusage, &rusage); 1921 } 1922 } 1923 } 1924 break; 1925 case TARGET_NR_swapoff: 1926 ret = get_errno(swapoff((const char *)arg1)); 1927 break; 1928 case TARGET_NR_sysinfo: 1929 goto unimplemented; 1930 case TARGET_NR_ipc: 1931 goto unimplemented; 1932 case TARGET_NR_fsync: 1933 ret = get_errno(fsync(arg1)); 1934 break; 1935 case TARGET_NR_clone: 1936 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 1937 break; 1938 #ifdef __NR_exit_group 1939 /* new thread calls */ 1940 case TARGET_NR_exit_group: 1941 ret = get_errno(exit_group(arg1)); 1942 break; 1943 #endif 1944 case TARGET_NR_setdomainname: 1945 ret = get_errno(setdomainname((const char *)arg1, arg2)); 1946 break; 1947 case TARGET_NR_uname: 1948 /* no need to transcode because we use the linux syscall */ 1949 ret = get_errno(sys_uname((struct new_utsname *)arg1)); 1950 break; 1951 #ifdef TARGET_I386 1952 case TARGET_NR_modify_ldt: 1953 ret = get_errno(do_modify_ldt(cpu_env, arg1, (void *)arg2, arg3)); 1954 break; 1955 case TARGET_NR_vm86old: 1956 goto unimplemented; 1957 case TARGET_NR_vm86: 1958 ret = do_vm86(cpu_env, arg1, (void *)arg2); 1959 break; 1960 #endif 1961 case TARGET_NR_adjtimex: 1962 goto unimplemented; 1963 case TARGET_NR_create_module: 1964 case TARGET_NR_init_module: 1965 case TARGET_NR_delete_module: 1966 case TARGET_NR_get_kernel_syms: 1967 goto unimplemented; 1968 case TARGET_NR_quotactl: 1969 goto unimplemented; 1970 case TARGET_NR_getpgid: 1971 ret = get_errno(getpgid(arg1)); 1972 break; 1973 case TARGET_NR_fchdir: 1974 ret = get_errno(fchdir(arg1)); 1975 break; 1976 case TARGET_NR_bdflush: 1977 goto unimplemented; 1978 case TARGET_NR_sysfs: 1979 goto unimplemented; 1980 case TARGET_NR_personality: 1981 ret = get_errno(personality(arg1)); 1982 break; 1983 case TARGET_NR_afs_syscall: 1984 goto unimplemented; 1985 case TARGET_NR_setfsuid: 1986 ret = get_errno(setfsuid(arg1)); 1987 break; 1988 case TARGET_NR_setfsgid: 1989 ret = get_errno(setfsgid(arg1)); 1990 break; 1991 case TARGET_NR__llseek: 1992 { 1993 int64_t res; 1994 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 1995 *(int64_t *)arg4 = tswap64(res); 1996 } 1997 break; 1998 case TARGET_NR_getdents: 1999 #if TARGET_LONG_SIZE != 4 2000 #error not supported 2001 #endif 2002 { 2003 struct dirent *dirp = (void *)arg2; 2004 long count = arg3; 2005 2006 ret = get_errno(sys_getdents(arg1, dirp, count)); 2007 if (!is_error(ret)) { 2008 struct dirent *de; 2009 int len = ret; 2010 int reclen; 2011 de = dirp; 2012 while (len > 0) { 2013 reclen = de->d_reclen; 2014 if (reclen > len) 2015 break; 2016 de->d_reclen = tswap16(reclen); 2017 tswapls(&de->d_ino); 2018 tswapls(&de->d_off); 2019 de = (struct dirent *)((char *)de + reclen); 2020 len -= reclen; 2021 } 2022 } 2023 } 2024 break; 2025 case TARGET_NR_getdents64: 2026 { 2027 struct dirent64 *dirp = (void *)arg2; 2028 long count = arg3; 2029 ret = get_errno(sys_getdents64(arg1, dirp, count)); 2030 if (!is_error(ret)) { 2031 struct dirent64 *de; 2032 int len = ret; 2033 int reclen; 2034 de = dirp; 2035 while (len > 0) { 2036 reclen = de->d_reclen; 2037 if (reclen > len) 2038 break; 2039 de->d_reclen = tswap16(reclen); 2040 tswap64s(&de->d_ino); 2041 tswap64s(&de->d_off); 2042 de = (struct dirent64 *)((char *)de + reclen); 2043 len -= reclen; 2044 } 2045 } 2046 } 2047 break; 2048 case TARGET_NR__newselect: 2049 ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 2050 (void *)arg5); 2051 break; 2052 case TARGET_NR_poll: 2053 { 2054 struct target_pollfd *target_pfd = (void *)arg1; 2055 unsigned int nfds = arg2; 2056 int timeout = arg3; 2057 struct pollfd *pfd; 2058 unsigned int i; 2059 2060 pfd = alloca(sizeof(struct pollfd) * nfds); 2061 for(i = 0; i < nfds; i++) { 2062 pfd[i].fd = tswap32(target_pfd[i].fd); 2063 pfd[i].events = tswap16(target_pfd[i].events); 2064 } 2065 ret = get_errno(poll(pfd, nfds, timeout)); 2066 if (!is_error(ret)) { 2067 for(i = 0; i < nfds; i++) { 2068 target_pfd[i].revents = tswap16(pfd[i].revents); 2069 } 2070 } 2071 } 2072 break; 2073 case TARGET_NR_flock: 2074 /* NOTE: the flock constant seems to be the same for every 2075 Linux platform */ 2076 ret = get_errno(flock(arg1, arg2)); 2077 break; 2078 case TARGET_NR_readv: 2079 { 2080 int count = arg3; 2081 int i; 2082 struct iovec *vec; 2083 struct target_iovec *target_vec = (void *)arg2; 2084 2085 vec = alloca(count * sizeof(struct iovec)); 2086 for(i = 0;i < count; i++) { 2087 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 2088 vec[i].iov_len = tswapl(target_vec[i].iov_len); 2089 } 2090 ret = get_errno(readv(arg1, vec, count)); 2091 } 2092 break; 2093 case TARGET_NR_writev: 2094 { 2095 int count = arg3; 2096 int i; 2097 struct iovec *vec; 2098 struct target_iovec *target_vec = (void *)arg2; 2099 2100 vec = alloca(count * sizeof(struct iovec)); 2101 for(i = 0;i < count; i++) { 2102 vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base); 2103 vec[i].iov_len = tswapl(target_vec[i].iov_len); 2104 } 2105 ret = get_errno(writev(arg1, vec, count)); 2106 } 2107 break; 2108 case TARGET_NR_getsid: 2109 ret = get_errno(getsid(arg1)); 2110 break; 2111 case TARGET_NR_fdatasync: 2112 ret = get_errno(fdatasync(arg1)); 2113 break; 2114 case TARGET_NR__sysctl: 2115 goto unimplemented; 2116 case TARGET_NR_sched_setparam: 2117 { 2118 struct sched_param *target_schp = (void *)arg2; 2119 struct sched_param schp; 2120 schp.sched_priority = tswap32(target_schp->sched_priority); 2121 ret = get_errno(sched_setparam(arg1, &schp)); 2122 } 2123 break; 2124 case TARGET_NR_sched_getparam: 2125 { 2126 struct sched_param *target_schp = (void *)arg2; 2127 struct sched_param schp; 2128 ret = get_errno(sched_getparam(arg1, &schp)); 2129 if (!is_error(ret)) { 2130 target_schp->sched_priority = tswap32(schp.sched_priority); 2131 } 2132 } 2133 break; 2134 case TARGET_NR_sched_setscheduler: 2135 { 2136 struct sched_param *target_schp = (void *)arg3; 2137 struct sched_param schp; 2138 schp.sched_priority = tswap32(target_schp->sched_priority); 2139 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 2140 } 2141 break; 2142 case TARGET_NR_sched_getscheduler: 2143 ret = get_errno(sched_getscheduler(arg1)); 2144 break; 2145 case TARGET_NR_sched_yield: 2146 ret = get_errno(sched_yield()); 2147 break; 2148 case TARGET_NR_sched_get_priority_max: 2149 ret = get_errno(sched_get_priority_max(arg1)); 2150 break; 2151 case TARGET_NR_sched_get_priority_min: 2152 ret = get_errno(sched_get_priority_min(arg1)); 2153 break; 2154 case TARGET_NR_sched_rr_get_interval: 2155 { 2156 struct target_timespec *target_ts = (void *)arg2; 2157 struct timespec ts; 2158 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 2159 if (!is_error(ret)) { 2160 target_ts->tv_sec = tswapl(ts.tv_sec); 2161 target_ts->tv_nsec = tswapl(ts.tv_nsec); 2162 } 2163 } 2164 break; 2165 case TARGET_NR_nanosleep: 2166 { 2167 struct target_timespec *target_req = (void *)arg1; 2168 struct target_timespec *target_rem = (void *)arg2; 2169 struct timespec req, rem; 2170 req.tv_sec = tswapl(target_req->tv_sec); 2171 req.tv_nsec = tswapl(target_req->tv_nsec); 2172 ret = get_errno(nanosleep(&req, &rem)); 2173 if (target_rem) { 2174 target_rem->tv_sec = tswapl(rem.tv_sec); 2175 target_rem->tv_nsec = tswapl(rem.tv_nsec); 2176 } 2177 } 2178 break; 2179 case TARGET_NR_setresuid: 2180 ret = get_errno(setresuid(low2highuid(arg1), 2181 low2highuid(arg2), 2182 low2highuid(arg3))); 2183 break; 2184 case TARGET_NR_getresuid: 2185 { 2186 int ruid, euid, suid; 2187 ret = get_errno(getresuid(&ruid, &euid, &suid)); 2188 if (!is_error(ret)) { 2189 *(uint16_t *)arg1 = tswap16(high2lowuid(ruid)); 2190 *(uint16_t *)arg2 = tswap16(high2lowuid(euid)); 2191 *(uint16_t *)arg3 = tswap16(high2lowuid(suid)); 2192 } 2193 } 2194 break; 2195 case TARGET_NR_setresgid: 2196 ret = get_errno(setresgid(low2highgid(arg1), 2197 low2highgid(arg2), 2198 low2highgid(arg3))); 2199 break; 2200 case TARGET_NR_getresgid: 2201 { 2202 int rgid, egid, sgid; 2203 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 2204 if (!is_error(ret)) { 2205 *(uint16_t *)arg1 = high2lowgid(tswap16(rgid)); 2206 *(uint16_t *)arg2 = high2lowgid(tswap16(egid)); 2207 *(uint16_t *)arg3 = high2lowgid(tswap16(sgid)); 2208 } 2209 } 2210 break; 2211 case TARGET_NR_query_module: 2212 goto unimplemented; 2213 case TARGET_NR_nfsservctl: 2214 goto unimplemented; 2215 case TARGET_NR_prctl: 2216 goto unimplemented; 2217 case TARGET_NR_pread: 2218 page_unprotect_range((void *)arg2, arg3); 2219 ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4)); 2220 break; 2221 case TARGET_NR_pwrite: 2222 ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4)); 2223 break; 2224 case TARGET_NR_chown: 2225 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 2226 break; 2227 case TARGET_NR_getcwd: 2228 ret = get_errno(sys_getcwd1((char *)arg1, arg2)); 2229 break; 2230 case TARGET_NR_capget: 2231 goto unimplemented; 2232 case TARGET_NR_capset: 2233 goto unimplemented; 2234 case TARGET_NR_sigaltstack: 2235 goto unimplemented; 2236 case TARGET_NR_sendfile: 2237 goto unimplemented; 2238 case TARGET_NR_getpmsg: 2239 goto unimplemented; 2240 case TARGET_NR_putpmsg: 2241 goto unimplemented; 2242 case TARGET_NR_vfork: 2243 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 2244 break; 2245 case TARGET_NR_ugetrlimit: 2246 { 2247 struct rlimit rlim; 2248 ret = get_errno(getrlimit(arg1, &rlim)); 2249 if (!is_error(ret)) { 2250 struct target_rlimit *target_rlim = (void *)arg2; 2251 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 2252 target_rlim->rlim_max = tswapl(rlim.rlim_max); 2253 } 2254 break; 2255 } 2256 case TARGET_NR_truncate64: 2257 goto unimplemented; 2258 case TARGET_NR_ftruncate64: 2259 goto unimplemented; 2260 case TARGET_NR_stat64: 2261 ret = get_errno(stat(path((const char *)arg1), &st)); 2262 goto do_stat64; 2263 case TARGET_NR_lstat64: 2264 ret = get_errno(lstat(path((const char *)arg1), &st)); 2265 goto do_stat64; 2266 case TARGET_NR_fstat64: 2267 { 2268 ret = get_errno(fstat(arg1, &st)); 2269 do_stat64: 2270 if (!is_error(ret)) { 2271 struct target_stat64 *target_st = (void *)arg2; 2272 memset(target_st, 0, sizeof(struct target_stat64)); 2273 target_st->st_dev = tswap16(st.st_dev); 2274 target_st->st_ino = tswap64(st.st_ino); 2275 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 2276 target_st->__st_ino = tswapl(st.st_ino); 2277 #endif 2278 target_st->st_mode = tswap32(st.st_mode); 2279 target_st->st_nlink = tswap32(st.st_nlink); 2280 target_st->st_uid = tswapl(st.st_uid); 2281 target_st->st_gid = tswapl(st.st_gid); 2282 target_st->st_rdev = tswap16(st.st_rdev); 2283 /* XXX: better use of kernel struct */ 2284 target_st->st_size = tswap64(st.st_size); 2285 target_st->st_blksize = tswapl(st.st_blksize); 2286 target_st->st_blocks = tswapl(st.st_blocks); 2287 target_st->target_st_atime = tswapl(st.st_atime); 2288 target_st->target_st_mtime = tswapl(st.st_mtime); 2289 target_st->target_st_ctime = tswapl(st.st_ctime); 2290 } 2291 } 2292 break; 2293 2294 case TARGET_NR_lchown32: 2295 ret = get_errno(lchown((const char *)arg1, arg2, arg3)); 2296 break; 2297 case TARGET_NR_getuid32: 2298 ret = get_errno(getuid()); 2299 break; 2300 case TARGET_NR_getgid32: 2301 ret = get_errno(getgid()); 2302 break; 2303 case TARGET_NR_geteuid32: 2304 ret = get_errno(geteuid()); 2305 break; 2306 case TARGET_NR_getegid32: 2307 ret = get_errno(getegid()); 2308 break; 2309 case TARGET_NR_setreuid32: 2310 ret = get_errno(setreuid(arg1, arg2)); 2311 break; 2312 case TARGET_NR_setregid32: 2313 ret = get_errno(setregid(arg1, arg2)); 2314 break; 2315 case TARGET_NR_getgroups32: 2316 goto unimplemented; 2317 case TARGET_NR_setgroups32: 2318 goto unimplemented; 2319 case TARGET_NR_fchown32: 2320 ret = get_errno(fchown(arg1, arg2, arg3)); 2321 break; 2322 case TARGET_NR_setresuid32: 2323 ret = get_errno(setresuid(arg1, arg2, arg3)); 2324 break; 2325 case TARGET_NR_getresuid32: 2326 { 2327 int ruid, euid, suid; 2328 ret = get_errno(getresuid(&ruid, &euid, &suid)); 2329 if (!is_error(ret)) { 2330 *(uint32_t *)arg1 = tswap32(ruid); 2331 *(uint32_t *)arg2 = tswap32(euid); 2332 *(uint32_t *)arg3 = tswap32(suid); 2333 } 2334 } 2335 break; 2336 case TARGET_NR_setresgid32: 2337 ret = get_errno(setresgid(arg1, arg2, arg3)); 2338 break; 2339 case TARGET_NR_getresgid32: 2340 { 2341 int rgid, egid, sgid; 2342 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 2343 if (!is_error(ret)) { 2344 *(uint32_t *)arg1 = tswap32(rgid); 2345 *(uint32_t *)arg2 = tswap32(egid); 2346 *(uint32_t *)arg3 = tswap32(sgid); 2347 } 2348 } 2349 break; 2350 case TARGET_NR_chown32: 2351 ret = get_errno(chown((const char *)arg1, arg2, arg3)); 2352 break; 2353 case TARGET_NR_setuid32: 2354 ret = get_errno(setuid(arg1)); 2355 break; 2356 case TARGET_NR_setgid32: 2357 ret = get_errno(setgid(arg1)); 2358 break; 2359 case TARGET_NR_setfsuid32: 2360 ret = get_errno(setfsuid(arg1)); 2361 break; 2362 case TARGET_NR_setfsgid32: 2363 ret = get_errno(setfsgid(arg1)); 2364 break; 2365 case TARGET_NR_pivot_root: 2366 goto unimplemented; 2367 case TARGET_NR_mincore: 2368 goto unimplemented; 2369 case TARGET_NR_madvise: 2370 goto unimplemented; 2371 #if TARGET_LONG_BITS == 32 2372 case TARGET_NR_fcntl64: 2373 { 2374 struct flock64 fl; 2375 struct target_flock64 *target_fl = (void *)arg3; 2376 2377 switch(arg2) { 2378 case F_GETLK64: 2379 ret = get_errno(fcntl(arg1, arg2, &fl)); 2380 if (ret == 0) { 2381 target_fl->l_type = tswap16(fl.l_type); 2382 target_fl->l_whence = tswap16(fl.l_whence); 2383 target_fl->l_start = tswap64(fl.l_start); 2384 target_fl->l_len = tswap64(fl.l_len); 2385 target_fl->l_pid = tswapl(fl.l_pid); 2386 } 2387 break; 2388 2389 case F_SETLK64: 2390 case F_SETLKW64: 2391 fl.l_type = tswap16(target_fl->l_type); 2392 fl.l_whence = tswap16(target_fl->l_whence); 2393 fl.l_start = tswap64(target_fl->l_start); 2394 fl.l_len = tswap64(target_fl->l_len); 2395 fl.l_pid = tswapl(target_fl->l_pid); 2396 ret = get_errno(fcntl(arg1, arg2, &fl)); 2397 break; 2398 default: 2399 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2400 break; 2401 } 2402 break; 2403 } 2404 #endif 2405 case TARGET_NR_security: 2406 goto unimplemented; 2407 case TARGET_NR_gettid: 2408 ret = get_errno(gettid()); 2409 break; 2410 case TARGET_NR_readahead: 2411 goto unimplemented; 2412 case TARGET_NR_setxattr: 2413 case TARGET_NR_lsetxattr: 2414 case TARGET_NR_fsetxattr: 2415 case TARGET_NR_getxattr: 2416 case TARGET_NR_lgetxattr: 2417 case TARGET_NR_fgetxattr: 2418 case TARGET_NR_listxattr: 2419 case TARGET_NR_llistxattr: 2420 case TARGET_NR_flistxattr: 2421 case TARGET_NR_removexattr: 2422 case TARGET_NR_lremovexattr: 2423 case TARGET_NR_fremovexattr: 2424 goto unimplemented_nowarn; 2425 case TARGET_NR_set_thread_area: 2426 case TARGET_NR_get_thread_area: 2427 goto unimplemented_nowarn; 2428 default: 2429 unimplemented: 2430 gemu_log("qemu: Unsupported syscall: %d\n", num); 2431 unimplemented_nowarn: 2432 ret = -ENOSYS; 2433 break; 2434 } 2435 fail: 2436 return ret; 2437 } 2438 2439