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) || defined(TARGET_CRIS) 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_faccessat __NR_faccessat 143 #define __NR_sys_fchmodat __NR_fchmodat 144 #define __NR_sys_fchownat __NR_fchownat 145 #define __NR_sys_getcwd1 __NR_getcwd 146 #define __NR_sys_getdents __NR_getdents 147 #define __NR_sys_getdents64 __NR_getdents64 148 #define __NR_sys_getpriority __NR_getpriority 149 #define __NR_sys_linkat __NR_linkat 150 #define __NR_sys_mkdirat __NR_mkdirat 151 #define __NR_sys_mknodat __NR_mknodat 152 #define __NR_sys_openat __NR_openat 153 #define __NR_sys_readlinkat __NR_readlinkat 154 #define __NR_sys_renameat __NR_renameat 155 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 156 #define __NR_sys_symlinkat __NR_symlinkat 157 #define __NR_sys_syslog __NR_syslog 158 #define __NR_sys_tgkill __NR_tgkill 159 #define __NR_sys_tkill __NR_tkill 160 #define __NR_sys_unlinkat __NR_unlinkat 161 #define __NR_sys_utimensat __NR_utimensat 162 163 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 164 #define __NR__llseek __NR_lseek 165 #endif 166 167 #ifdef __NR_gettid 168 _syscall0(int, gettid) 169 #else 170 /* This is a replacement for the host gettid() and must return a host 171 errno. */ 172 static int gettid(void) { 173 return -ENOSYS; 174 } 175 #endif 176 _syscall1(int,sys_uname,struct new_utsname *,buf) 177 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 178 _syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags) 179 #endif 180 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 181 _syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname, 182 mode_t,mode,int,flags) 183 #endif 184 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 185 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname, 186 uid_t,owner,gid_t,group,int,flags) 187 #endif 188 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 189 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 190 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 191 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 192 #endif 193 _syscall2(int, sys_getpriority, int, which, int, who); 194 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 195 loff_t *, res, uint, wh); 196 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 197 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath, 198 int,newdirfd,const char *,newpath,int,flags) 199 #endif 200 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 201 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 202 #endif 203 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 204 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname, 205 mode_t,mode,dev_t,dev) 206 #endif 207 #if defined(TARGET_NR_openat) && defined(__NR_openat) 208 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 209 #endif 210 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 211 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname, 212 char *,buf,size_t,bufsize) 213 #endif 214 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 215 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath, 216 int,newdirfd,const char *,newpath) 217 #endif 218 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 219 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 220 _syscall3(int,sys_symlinkat,const char *,oldpath, 221 int,newdirfd,const char *,newpath) 222 #endif 223 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 224 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 225 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 226 #endif 227 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 228 _syscall2(int,sys_tkill,int,tid,int,sig) 229 #endif 230 #ifdef __NR_exit_group 231 _syscall1(int,exit_group,int,error_code) 232 #endif 233 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 234 _syscall1(int,set_tid_address,int *,tidptr) 235 #endif 236 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 237 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) 238 #endif 239 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 240 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, 241 const struct timespec *,tsp,int,flags) 242 #endif 243 244 extern int personality(int); 245 extern int flock(int, int); 246 extern int setfsuid(int); 247 extern int setfsgid(int); 248 extern int setresuid(uid_t, uid_t, uid_t); 249 extern int getresuid(uid_t *, uid_t *, uid_t *); 250 extern int setresgid(gid_t, gid_t, gid_t); 251 extern int getresgid(gid_t *, gid_t *, gid_t *); 252 extern int setgroups(int, gid_t *); 253 254 /* 255 * This list is the union of errno values overridden in asm-<arch>/errno.h 256 * minus the errnos that are not actually generic to all archs. 257 */ 258 static uint16_t host_to_target_errno_table[1200] = { 259 [EIDRM] = TARGET_EIDRM, 260 [ECHRNG] = TARGET_ECHRNG, 261 [EL2NSYNC] = TARGET_EL2NSYNC, 262 [EL3HLT] = TARGET_EL3HLT, 263 [EL3RST] = TARGET_EL3RST, 264 [ELNRNG] = TARGET_ELNRNG, 265 [EUNATCH] = TARGET_EUNATCH, 266 [ENOCSI] = TARGET_ENOCSI, 267 [EL2HLT] = TARGET_EL2HLT, 268 [EDEADLK] = TARGET_EDEADLK, 269 [ENOLCK] = TARGET_ENOLCK, 270 [EBADE] = TARGET_EBADE, 271 [EBADR] = TARGET_EBADR, 272 [EXFULL] = TARGET_EXFULL, 273 [ENOANO] = TARGET_ENOANO, 274 [EBADRQC] = TARGET_EBADRQC, 275 [EBADSLT] = TARGET_EBADSLT, 276 [EBFONT] = TARGET_EBFONT, 277 [ENOSTR] = TARGET_ENOSTR, 278 [ENODATA] = TARGET_ENODATA, 279 [ETIME] = TARGET_ETIME, 280 [ENOSR] = TARGET_ENOSR, 281 [ENONET] = TARGET_ENONET, 282 [ENOPKG] = TARGET_ENOPKG, 283 [EREMOTE] = TARGET_EREMOTE, 284 [ENOLINK] = TARGET_ENOLINK, 285 [EADV] = TARGET_EADV, 286 [ESRMNT] = TARGET_ESRMNT, 287 [ECOMM] = TARGET_ECOMM, 288 [EPROTO] = TARGET_EPROTO, 289 [EDOTDOT] = TARGET_EDOTDOT, 290 [EMULTIHOP] = TARGET_EMULTIHOP, 291 [EBADMSG] = TARGET_EBADMSG, 292 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 293 [EOVERFLOW] = TARGET_EOVERFLOW, 294 [ENOTUNIQ] = TARGET_ENOTUNIQ, 295 [EBADFD] = TARGET_EBADFD, 296 [EREMCHG] = TARGET_EREMCHG, 297 [ELIBACC] = TARGET_ELIBACC, 298 [ELIBBAD] = TARGET_ELIBBAD, 299 [ELIBSCN] = TARGET_ELIBSCN, 300 [ELIBMAX] = TARGET_ELIBMAX, 301 [ELIBEXEC] = TARGET_ELIBEXEC, 302 [EILSEQ] = TARGET_EILSEQ, 303 [ENOSYS] = TARGET_ENOSYS, 304 [ELOOP] = TARGET_ELOOP, 305 [ERESTART] = TARGET_ERESTART, 306 [ESTRPIPE] = TARGET_ESTRPIPE, 307 [ENOTEMPTY] = TARGET_ENOTEMPTY, 308 [EUSERS] = TARGET_EUSERS, 309 [ENOTSOCK] = TARGET_ENOTSOCK, 310 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 311 [EMSGSIZE] = TARGET_EMSGSIZE, 312 [EPROTOTYPE] = TARGET_EPROTOTYPE, 313 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 314 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 315 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 316 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 317 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 318 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 319 [EADDRINUSE] = TARGET_EADDRINUSE, 320 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 321 [ENETDOWN] = TARGET_ENETDOWN, 322 [ENETUNREACH] = TARGET_ENETUNREACH, 323 [ENETRESET] = TARGET_ENETRESET, 324 [ECONNABORTED] = TARGET_ECONNABORTED, 325 [ECONNRESET] = TARGET_ECONNRESET, 326 [ENOBUFS] = TARGET_ENOBUFS, 327 [EISCONN] = TARGET_EISCONN, 328 [ENOTCONN] = TARGET_ENOTCONN, 329 [EUCLEAN] = TARGET_EUCLEAN, 330 [ENOTNAM] = TARGET_ENOTNAM, 331 [ENAVAIL] = TARGET_ENAVAIL, 332 [EISNAM] = TARGET_EISNAM, 333 [EREMOTEIO] = TARGET_EREMOTEIO, 334 [ESHUTDOWN] = TARGET_ESHUTDOWN, 335 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 336 [ETIMEDOUT] = TARGET_ETIMEDOUT, 337 [ECONNREFUSED] = TARGET_ECONNREFUSED, 338 [EHOSTDOWN] = TARGET_EHOSTDOWN, 339 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 340 [EALREADY] = TARGET_EALREADY, 341 [EINPROGRESS] = TARGET_EINPROGRESS, 342 [ESTALE] = TARGET_ESTALE, 343 [ECANCELED] = TARGET_ECANCELED, 344 [ENOMEDIUM] = TARGET_ENOMEDIUM, 345 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 346 #ifdef ENOKEY 347 [ENOKEY] = TARGET_ENOKEY, 348 #endif 349 #ifdef EKEYEXPIRED 350 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 351 #endif 352 #ifdef EKEYREVOKED 353 [EKEYREVOKED] = TARGET_EKEYREVOKED, 354 #endif 355 #ifdef EKEYREJECTED 356 [EKEYREJECTED] = TARGET_EKEYREJECTED, 357 #endif 358 #ifdef EOWNERDEAD 359 [EOWNERDEAD] = TARGET_EOWNERDEAD, 360 #endif 361 #ifdef ENOTRECOVERABLE 362 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 363 #endif 364 }; 365 366 static inline int host_to_target_errno(int err) 367 { 368 if(host_to_target_errno_table[err]) 369 return host_to_target_errno_table[err]; 370 return err; 371 } 372 373 static inline abi_long get_errno(abi_long ret) 374 { 375 if (ret == -1) 376 return -host_to_target_errno(errno); 377 else 378 return ret; 379 } 380 381 static inline int is_error(abi_long ret) 382 { 383 return (abi_ulong)ret >= (abi_ulong)(-4096); 384 } 385 386 static abi_ulong target_brk; 387 static abi_ulong target_original_brk; 388 389 void target_set_brk(abi_ulong new_brk) 390 { 391 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 392 } 393 394 /* do_brk() must return target values and target errnos. */ 395 abi_long do_brk(abi_ulong new_brk) 396 { 397 abi_ulong brk_page; 398 abi_long mapped_addr; 399 int new_alloc_size; 400 401 if (!new_brk) 402 return target_brk; 403 if (new_brk < target_original_brk) 404 return -TARGET_ENOMEM; 405 406 brk_page = HOST_PAGE_ALIGN(target_brk); 407 408 /* If the new brk is less than this, set it and we're done... */ 409 if (new_brk < brk_page) { 410 target_brk = new_brk; 411 return target_brk; 412 } 413 414 /* We need to allocate more memory after the brk... */ 415 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 416 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 417 PROT_READ|PROT_WRITE, 418 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 419 if (is_error(mapped_addr)) { 420 return mapped_addr; 421 } else { 422 target_brk = new_brk; 423 return target_brk; 424 } 425 } 426 427 static inline fd_set *target_to_host_fds(fd_set *fds, 428 abi_long *target_fds, int n) 429 { 430 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 431 return (fd_set *)target_fds; 432 #else 433 int i, b; 434 if (target_fds) { 435 FD_ZERO(fds); 436 for(i = 0;i < n; i++) { 437 b = (tswapl(target_fds[i / TARGET_ABI_BITS]) >> 438 (i & (TARGET_ABI_BITS - 1))) & 1; 439 if (b) 440 FD_SET(i, fds); 441 } 442 return fds; 443 } else { 444 return NULL; 445 } 446 #endif 447 } 448 449 static inline void host_to_target_fds(abi_long *target_fds, 450 fd_set *fds, int n) 451 { 452 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 453 /* nothing to do */ 454 #else 455 int i, nw, j, k; 456 abi_long v; 457 458 if (target_fds) { 459 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 460 k = 0; 461 for(i = 0;i < nw; i++) { 462 v = 0; 463 for(j = 0; j < TARGET_ABI_BITS; j++) { 464 v |= ((FD_ISSET(k, fds) != 0) << j); 465 k++; 466 } 467 target_fds[i] = tswapl(v); 468 } 469 } 470 #endif 471 } 472 473 #if defined(__alpha__) 474 #define HOST_HZ 1024 475 #else 476 #define HOST_HZ 100 477 #endif 478 479 static inline abi_long host_to_target_clock_t(long ticks) 480 { 481 #if HOST_HZ == TARGET_HZ 482 return ticks; 483 #else 484 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 485 #endif 486 } 487 488 static inline void host_to_target_rusage(abi_ulong target_addr, 489 const struct rusage *rusage) 490 { 491 struct target_rusage *target_rusage; 492 493 lock_user_struct(target_rusage, target_addr, 0); 494 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 495 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 496 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 497 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 498 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 499 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 500 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 501 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 502 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 503 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 504 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 505 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 506 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 507 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 508 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 509 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 510 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 511 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 512 unlock_user_struct(target_rusage, target_addr, 1); 513 } 514 515 static inline void target_to_host_timeval(struct timeval *tv, 516 abi_ulong target_addr) 517 { 518 struct target_timeval *target_tv; 519 520 lock_user_struct(target_tv, target_addr, 1); 521 tv->tv_sec = tswapl(target_tv->tv_sec); 522 tv->tv_usec = tswapl(target_tv->tv_usec); 523 unlock_user_struct(target_tv, target_addr, 0); 524 } 525 526 static inline void host_to_target_timeval(abi_ulong target_addr, 527 const struct timeval *tv) 528 { 529 struct target_timeval *target_tv; 530 531 lock_user_struct(target_tv, target_addr, 0); 532 target_tv->tv_sec = tswapl(tv->tv_sec); 533 target_tv->tv_usec = tswapl(tv->tv_usec); 534 unlock_user_struct(target_tv, target_addr, 1); 535 } 536 537 538 /* do_select() must return target values and target errnos. */ 539 static abi_long do_select(int n, 540 abi_ulong rfd_p, abi_ulong wfd_p, 541 abi_ulong efd_p, abi_ulong target_tv) 542 { 543 fd_set rfds, wfds, efds; 544 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 545 abi_long *target_rfds, *target_wfds, *target_efds; 546 struct timeval tv, *tv_ptr; 547 abi_long ret; 548 int ok; 549 550 if (rfd_p) { 551 target_rfds = lock_user(rfd_p, sizeof(abi_long) * n, 1); 552 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 553 } else { 554 target_rfds = NULL; 555 rfds_ptr = NULL; 556 } 557 if (wfd_p) { 558 target_wfds = lock_user(wfd_p, sizeof(abi_long) * n, 1); 559 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 560 } else { 561 target_wfds = NULL; 562 wfds_ptr = NULL; 563 } 564 if (efd_p) { 565 target_efds = lock_user(efd_p, sizeof(abi_long) * n, 1); 566 efds_ptr = target_to_host_fds(&efds, target_efds, n); 567 } else { 568 target_efds = NULL; 569 efds_ptr = NULL; 570 } 571 572 if (target_tv) { 573 target_to_host_timeval(&tv, target_tv); 574 tv_ptr = &tv; 575 } else { 576 tv_ptr = NULL; 577 } 578 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 579 ok = !is_error(ret); 580 581 if (ok) { 582 host_to_target_fds(target_rfds, rfds_ptr, n); 583 host_to_target_fds(target_wfds, wfds_ptr, n); 584 host_to_target_fds(target_efds, efds_ptr, n); 585 586 if (target_tv) { 587 host_to_target_timeval(target_tv, &tv); 588 } 589 } 590 if (target_rfds) 591 unlock_user(target_rfds, rfd_p, ok ? sizeof(abi_long) * n : 0); 592 if (target_wfds) 593 unlock_user(target_wfds, wfd_p, ok ? sizeof(abi_long) * n : 0); 594 if (target_efds) 595 unlock_user(target_efds, efd_p, ok ? sizeof(abi_long) * n : 0); 596 597 return ret; 598 } 599 600 static inline void target_to_host_sockaddr(struct sockaddr *addr, 601 abi_ulong target_addr, 602 socklen_t len) 603 { 604 struct target_sockaddr *target_saddr; 605 606 target_saddr = lock_user(target_addr, len, 1); 607 memcpy(addr, target_saddr, len); 608 addr->sa_family = tswap16(target_saddr->sa_family); 609 unlock_user(target_saddr, target_addr, 0); 610 } 611 612 static inline void host_to_target_sockaddr(abi_ulong target_addr, 613 struct sockaddr *addr, 614 socklen_t len) 615 { 616 struct target_sockaddr *target_saddr; 617 618 target_saddr = lock_user(target_addr, len, 0); 619 memcpy(target_saddr, addr, len); 620 target_saddr->sa_family = tswap16(addr->sa_family); 621 unlock_user(target_saddr, target_addr, len); 622 } 623 624 /* ??? Should this also swap msgh->name? */ 625 static inline void target_to_host_cmsg(struct msghdr *msgh, 626 struct target_msghdr *target_msgh) 627 { 628 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 629 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 630 socklen_t space = 0; 631 632 while (cmsg && target_cmsg) { 633 void *data = CMSG_DATA(cmsg); 634 void *target_data = TARGET_CMSG_DATA(target_cmsg); 635 636 int len = tswapl(target_cmsg->cmsg_len) 637 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 638 639 space += CMSG_SPACE(len); 640 if (space > msgh->msg_controllen) { 641 space -= CMSG_SPACE(len); 642 gemu_log("Host cmsg overflow\n"); 643 break; 644 } 645 646 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 647 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 648 cmsg->cmsg_len = CMSG_LEN(len); 649 650 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 651 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 652 memcpy(data, target_data, len); 653 } else { 654 int *fd = (int *)data; 655 int *target_fd = (int *)target_data; 656 int i, numfds = len / sizeof(int); 657 658 for (i = 0; i < numfds; i++) 659 fd[i] = tswap32(target_fd[i]); 660 } 661 662 cmsg = CMSG_NXTHDR(msgh, cmsg); 663 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 664 } 665 666 msgh->msg_controllen = space; 667 } 668 669 /* ??? Should this also swap msgh->name? */ 670 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 671 struct msghdr *msgh) 672 { 673 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 674 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 675 socklen_t space = 0; 676 677 while (cmsg && target_cmsg) { 678 void *data = CMSG_DATA(cmsg); 679 void *target_data = TARGET_CMSG_DATA(target_cmsg); 680 681 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 682 683 space += TARGET_CMSG_SPACE(len); 684 if (space > tswapl(target_msgh->msg_controllen)) { 685 space -= TARGET_CMSG_SPACE(len); 686 gemu_log("Target cmsg overflow\n"); 687 break; 688 } 689 690 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 691 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 692 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 693 694 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 695 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 696 memcpy(target_data, data, len); 697 } else { 698 int *fd = (int *)data; 699 int *target_fd = (int *)target_data; 700 int i, numfds = len / sizeof(int); 701 702 for (i = 0; i < numfds; i++) 703 target_fd[i] = tswap32(fd[i]); 704 } 705 706 cmsg = CMSG_NXTHDR(msgh, cmsg); 707 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 708 } 709 710 msgh->msg_controllen = tswapl(space); 711 } 712 713 /* do_setsockopt() Must return target values and target errnos. */ 714 static abi_long do_setsockopt(int sockfd, int level, int optname, 715 abi_ulong optval, socklen_t optlen) 716 { 717 abi_long ret; 718 int val; 719 720 switch(level) { 721 case SOL_TCP: 722 /* TCP options all take an 'int' value. */ 723 if (optlen < sizeof(uint32_t)) 724 return -TARGET_EINVAL; 725 726 val = tget32(optval); 727 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 728 break; 729 case SOL_IP: 730 switch(optname) { 731 case IP_TOS: 732 case IP_TTL: 733 case IP_HDRINCL: 734 case IP_ROUTER_ALERT: 735 case IP_RECVOPTS: 736 case IP_RETOPTS: 737 case IP_PKTINFO: 738 case IP_MTU_DISCOVER: 739 case IP_RECVERR: 740 case IP_RECVTOS: 741 #ifdef IP_FREEBIND 742 case IP_FREEBIND: 743 #endif 744 case IP_MULTICAST_TTL: 745 case IP_MULTICAST_LOOP: 746 val = 0; 747 if (optlen >= sizeof(uint32_t)) { 748 val = tget32(optval); 749 } else if (optlen >= 1) { 750 val = tget8(optval); 751 } 752 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 753 break; 754 default: 755 goto unimplemented; 756 } 757 break; 758 case TARGET_SOL_SOCKET: 759 switch (optname) { 760 /* Options with 'int' argument. */ 761 case TARGET_SO_DEBUG: 762 optname = SO_DEBUG; 763 break; 764 case TARGET_SO_REUSEADDR: 765 optname = SO_REUSEADDR; 766 break; 767 case TARGET_SO_TYPE: 768 optname = SO_TYPE; 769 break; 770 case TARGET_SO_ERROR: 771 optname = SO_ERROR; 772 break; 773 case TARGET_SO_DONTROUTE: 774 optname = SO_DONTROUTE; 775 break; 776 case TARGET_SO_BROADCAST: 777 optname = SO_BROADCAST; 778 break; 779 case TARGET_SO_SNDBUF: 780 optname = SO_SNDBUF; 781 break; 782 case TARGET_SO_RCVBUF: 783 optname = SO_RCVBUF; 784 break; 785 case TARGET_SO_KEEPALIVE: 786 optname = SO_KEEPALIVE; 787 break; 788 case TARGET_SO_OOBINLINE: 789 optname = SO_OOBINLINE; 790 break; 791 case TARGET_SO_NO_CHECK: 792 optname = SO_NO_CHECK; 793 break; 794 case TARGET_SO_PRIORITY: 795 optname = SO_PRIORITY; 796 break; 797 #ifdef SO_BSDCOMPAT 798 case TARGET_SO_BSDCOMPAT: 799 optname = SO_BSDCOMPAT; 800 break; 801 #endif 802 case TARGET_SO_PASSCRED: 803 optname = SO_PASSCRED; 804 break; 805 case TARGET_SO_TIMESTAMP: 806 optname = SO_TIMESTAMP; 807 break; 808 case TARGET_SO_RCVLOWAT: 809 optname = SO_RCVLOWAT; 810 break; 811 case TARGET_SO_RCVTIMEO: 812 optname = SO_RCVTIMEO; 813 break; 814 case TARGET_SO_SNDTIMEO: 815 optname = SO_SNDTIMEO; 816 break; 817 break; 818 default: 819 goto unimplemented; 820 } 821 if (optlen < sizeof(uint32_t)) 822 return -TARGET_EINVAL; 823 824 val = tget32(optval); 825 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 826 break; 827 default: 828 unimplemented: 829 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 830 ret = -TARGET_ENOSYS; 831 } 832 return ret; 833 } 834 835 /* do_getsockopt() Must return target values and target errnos. */ 836 static abi_long do_getsockopt(int sockfd, int level, int optname, 837 abi_ulong optval, abi_ulong optlen) 838 { 839 abi_long ret; 840 int len, lv, val; 841 842 switch(level) { 843 case TARGET_SOL_SOCKET: 844 level = SOL_SOCKET; 845 switch (optname) { 846 case TARGET_SO_LINGER: 847 case TARGET_SO_RCVTIMEO: 848 case TARGET_SO_SNDTIMEO: 849 case TARGET_SO_PEERCRED: 850 case TARGET_SO_PEERNAME: 851 /* These don't just return a single integer */ 852 goto unimplemented; 853 default: 854 goto int_case; 855 } 856 break; 857 case SOL_TCP: 858 /* TCP options all take an 'int' value. */ 859 int_case: 860 len = tget32(optlen); 861 if (len < 0) 862 return -TARGET_EINVAL; 863 lv = sizeof(int); 864 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 865 if (ret < 0) 866 return ret; 867 val = tswap32(val); 868 if (len > lv) 869 len = lv; 870 if (len == 4) 871 tput32(optval, val); 872 else 873 tput8(optval, val); 874 tput32(optlen, len); 875 break; 876 case SOL_IP: 877 switch(optname) { 878 case IP_TOS: 879 case IP_TTL: 880 case IP_HDRINCL: 881 case IP_ROUTER_ALERT: 882 case IP_RECVOPTS: 883 case IP_RETOPTS: 884 case IP_PKTINFO: 885 case IP_MTU_DISCOVER: 886 case IP_RECVERR: 887 case IP_RECVTOS: 888 #ifdef IP_FREEBIND 889 case IP_FREEBIND: 890 #endif 891 case IP_MULTICAST_TTL: 892 case IP_MULTICAST_LOOP: 893 len = tget32(optlen); 894 if (len < 0) 895 return -TARGET_EINVAL; 896 lv = sizeof(int); 897 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 898 if (ret < 0) 899 return ret; 900 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 901 len = 1; 902 tput32(optlen, len); 903 tput8(optval, val); 904 } else { 905 if (len > sizeof(int)) 906 len = sizeof(int); 907 tput32(optlen, len); 908 tput32(optval, val); 909 } 910 break; 911 default: 912 goto unimplemented; 913 } 914 break; 915 default: 916 unimplemented: 917 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 918 level, optname); 919 ret = -TARGET_ENOSYS; 920 break; 921 } 922 return ret; 923 } 924 925 static void lock_iovec(struct iovec *vec, abi_ulong target_addr, 926 int count, int copy) 927 { 928 struct target_iovec *target_vec; 929 abi_ulong base; 930 int i; 931 932 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 933 for(i = 0;i < count; i++) { 934 base = tswapl(target_vec[i].iov_base); 935 vec[i].iov_len = tswapl(target_vec[i].iov_len); 936 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 937 } 938 unlock_user (target_vec, target_addr, 0); 939 } 940 941 static void unlock_iovec(struct iovec *vec, abi_ulong target_addr, 942 int count, int copy) 943 { 944 struct target_iovec *target_vec; 945 abi_ulong base; 946 int i; 947 948 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 949 for(i = 0;i < count; i++) { 950 base = tswapl(target_vec[i].iov_base); 951 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 952 } 953 unlock_user (target_vec, target_addr, 0); 954 } 955 956 /* do_socket() Must return target values and target errnos. */ 957 static abi_long do_socket(int domain, int type, int protocol) 958 { 959 #if defined(TARGET_MIPS) 960 switch(type) { 961 case TARGET_SOCK_DGRAM: 962 type = SOCK_DGRAM; 963 break; 964 case TARGET_SOCK_STREAM: 965 type = SOCK_STREAM; 966 break; 967 case TARGET_SOCK_RAW: 968 type = SOCK_RAW; 969 break; 970 case TARGET_SOCK_RDM: 971 type = SOCK_RDM; 972 break; 973 case TARGET_SOCK_SEQPACKET: 974 type = SOCK_SEQPACKET; 975 break; 976 case TARGET_SOCK_PACKET: 977 type = SOCK_PACKET; 978 break; 979 } 980 #endif 981 if (domain == PF_NETLINK) 982 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 983 return get_errno(socket(domain, type, protocol)); 984 } 985 986 /* do_bind() Must return target values and target errnos. */ 987 static abi_long do_bind(int sockfd, abi_ulong target_addr, 988 socklen_t addrlen) 989 { 990 void *addr = alloca(addrlen); 991 992 target_to_host_sockaddr(addr, target_addr, addrlen); 993 return get_errno(bind(sockfd, addr, addrlen)); 994 } 995 996 /* do_connect() Must return target values and target errnos. */ 997 static abi_long do_connect(int sockfd, abi_ulong target_addr, 998 socklen_t addrlen) 999 { 1000 void *addr = alloca(addrlen); 1001 1002 target_to_host_sockaddr(addr, target_addr, addrlen); 1003 return get_errno(connect(sockfd, addr, addrlen)); 1004 } 1005 1006 /* do_sendrecvmsg() Must return target values and target errnos. */ 1007 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1008 int flags, int send) 1009 { 1010 abi_long ret; 1011 struct target_msghdr *msgp; 1012 struct msghdr msg; 1013 int count; 1014 struct iovec *vec; 1015 abi_ulong target_vec; 1016 1017 lock_user_struct(msgp, target_msg, 1); 1018 if (msgp->msg_name) { 1019 msg.msg_namelen = tswap32(msgp->msg_namelen); 1020 msg.msg_name = alloca(msg.msg_namelen); 1021 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 1022 msg.msg_namelen); 1023 } else { 1024 msg.msg_name = NULL; 1025 msg.msg_namelen = 0; 1026 } 1027 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 1028 msg.msg_control = alloca(msg.msg_controllen); 1029 msg.msg_flags = tswap32(msgp->msg_flags); 1030 1031 count = tswapl(msgp->msg_iovlen); 1032 vec = alloca(count * sizeof(struct iovec)); 1033 target_vec = tswapl(msgp->msg_iov); 1034 lock_iovec(vec, target_vec, count, send); 1035 msg.msg_iovlen = count; 1036 msg.msg_iov = vec; 1037 1038 if (send) { 1039 target_to_host_cmsg(&msg, msgp); 1040 ret = get_errno(sendmsg(fd, &msg, flags)); 1041 } else { 1042 ret = get_errno(recvmsg(fd, &msg, flags)); 1043 if (!is_error(ret)) 1044 host_to_target_cmsg(msgp, &msg); 1045 } 1046 unlock_iovec(vec, target_vec, count, !send); 1047 return ret; 1048 } 1049 1050 /* do_accept() Must return target values and target errnos. */ 1051 static abi_long do_accept(int fd, abi_ulong target_addr, 1052 abi_ulong target_addrlen) 1053 { 1054 socklen_t addrlen = tget32(target_addrlen); 1055 void *addr = alloca(addrlen); 1056 abi_long ret; 1057 1058 ret = get_errno(accept(fd, addr, &addrlen)); 1059 if (!is_error(ret)) { 1060 host_to_target_sockaddr(target_addr, addr, addrlen); 1061 tput32(target_addrlen, addrlen); 1062 } 1063 return ret; 1064 } 1065 1066 /* do_getpeername() Must return target values and target errnos. */ 1067 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1068 abi_ulong target_addrlen) 1069 { 1070 socklen_t addrlen = tget32(target_addrlen); 1071 void *addr = alloca(addrlen); 1072 abi_long ret; 1073 1074 ret = get_errno(getpeername(fd, addr, &addrlen)); 1075 if (!is_error(ret)) { 1076 host_to_target_sockaddr(target_addr, addr, addrlen); 1077 tput32(target_addrlen, addrlen); 1078 } 1079 return ret; 1080 } 1081 1082 /* do_getsockname() Must return target values and target errnos. */ 1083 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1084 abi_ulong target_addrlen) 1085 { 1086 socklen_t addrlen = tget32(target_addrlen); 1087 void *addr = alloca(addrlen); 1088 abi_long ret; 1089 1090 ret = get_errno(getsockname(fd, addr, &addrlen)); 1091 if (!is_error(ret)) { 1092 host_to_target_sockaddr(target_addr, addr, addrlen); 1093 tput32(target_addrlen, addrlen); 1094 } 1095 return ret; 1096 } 1097 1098 /* do_socketpair() Must return target values and target errnos. */ 1099 static abi_long do_socketpair(int domain, int type, int protocol, 1100 abi_ulong target_tab) 1101 { 1102 int tab[2]; 1103 abi_long ret; 1104 1105 ret = get_errno(socketpair(domain, type, protocol, tab)); 1106 if (!is_error(ret)) { 1107 tput32(target_tab, tab[0]); 1108 tput32(target_tab + 4, tab[1]); 1109 } 1110 return ret; 1111 } 1112 1113 /* do_sendto() Must return target values and target errnos. */ 1114 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1115 abi_ulong target_addr, socklen_t addrlen) 1116 { 1117 void *addr; 1118 void *host_msg; 1119 abi_long ret; 1120 1121 host_msg = lock_user(msg, len, 1); 1122 if (target_addr) { 1123 addr = alloca(addrlen); 1124 target_to_host_sockaddr(addr, target_addr, addrlen); 1125 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1126 } else { 1127 ret = get_errno(send(fd, host_msg, len, flags)); 1128 } 1129 unlock_user(host_msg, msg, 0); 1130 return ret; 1131 } 1132 1133 /* do_recvfrom() Must return target values and target errnos. */ 1134 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 1135 abi_ulong target_addr, 1136 abi_ulong target_addrlen) 1137 { 1138 socklen_t addrlen; 1139 void *addr; 1140 void *host_msg; 1141 abi_long ret; 1142 1143 host_msg = lock_user(msg, len, 0); 1144 if (target_addr) { 1145 addrlen = tget32(target_addrlen); 1146 addr = alloca(addrlen); 1147 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1148 } else { 1149 addr = NULL; /* To keep compiler quiet. */ 1150 ret = get_errno(recv(fd, host_msg, len, flags)); 1151 } 1152 if (!is_error(ret)) { 1153 if (target_addr) { 1154 host_to_target_sockaddr(target_addr, addr, addrlen); 1155 tput32(target_addrlen, addrlen); 1156 } 1157 unlock_user(host_msg, msg, len); 1158 } else { 1159 unlock_user(host_msg, msg, 0); 1160 } 1161 return ret; 1162 } 1163 1164 #ifdef TARGET_NR_socketcall 1165 /* do_socketcall() Must return target values and target errnos. */ 1166 static abi_long do_socketcall(int num, abi_ulong vptr) 1167 { 1168 abi_long ret; 1169 const int n = sizeof(abi_ulong); 1170 1171 switch(num) { 1172 case SOCKOP_socket: 1173 { 1174 int domain = tgetl(vptr); 1175 int type = tgetl(vptr + n); 1176 int protocol = tgetl(vptr + 2 * n); 1177 ret = do_socket(domain, type, protocol); 1178 } 1179 break; 1180 case SOCKOP_bind: 1181 { 1182 int sockfd = tgetl(vptr); 1183 abi_ulong target_addr = tgetl(vptr + n); 1184 socklen_t addrlen = tgetl(vptr + 2 * n); 1185 ret = do_bind(sockfd, target_addr, addrlen); 1186 } 1187 break; 1188 case SOCKOP_connect: 1189 { 1190 int sockfd = tgetl(vptr); 1191 abi_ulong target_addr = tgetl(vptr + n); 1192 socklen_t addrlen = tgetl(vptr + 2 * n); 1193 ret = do_connect(sockfd, target_addr, addrlen); 1194 } 1195 break; 1196 case SOCKOP_listen: 1197 { 1198 int sockfd = tgetl(vptr); 1199 int backlog = tgetl(vptr + n); 1200 ret = get_errno(listen(sockfd, backlog)); 1201 } 1202 break; 1203 case SOCKOP_accept: 1204 { 1205 int sockfd = tgetl(vptr); 1206 abi_ulong target_addr = tgetl(vptr + n); 1207 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1208 ret = do_accept(sockfd, target_addr, target_addrlen); 1209 } 1210 break; 1211 case SOCKOP_getsockname: 1212 { 1213 int sockfd = tgetl(vptr); 1214 abi_ulong target_addr = tgetl(vptr + n); 1215 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1216 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1217 } 1218 break; 1219 case SOCKOP_getpeername: 1220 { 1221 int sockfd = tgetl(vptr); 1222 abi_ulong target_addr = tgetl(vptr + n); 1223 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1224 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1225 } 1226 break; 1227 case SOCKOP_socketpair: 1228 { 1229 int domain = tgetl(vptr); 1230 int type = tgetl(vptr + n); 1231 int protocol = tgetl(vptr + 2 * n); 1232 abi_ulong tab = tgetl(vptr + 3 * n); 1233 ret = do_socketpair(domain, type, protocol, tab); 1234 } 1235 break; 1236 case SOCKOP_send: 1237 { 1238 int sockfd = tgetl(vptr); 1239 abi_ulong msg = tgetl(vptr + n); 1240 size_t len = tgetl(vptr + 2 * n); 1241 int flags = tgetl(vptr + 3 * n); 1242 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1243 } 1244 break; 1245 case SOCKOP_recv: 1246 { 1247 int sockfd = tgetl(vptr); 1248 abi_ulong msg = tgetl(vptr + n); 1249 size_t len = tgetl(vptr + 2 * n); 1250 int flags = tgetl(vptr + 3 * n); 1251 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1252 } 1253 break; 1254 case SOCKOP_sendto: 1255 { 1256 int sockfd = tgetl(vptr); 1257 abi_ulong msg = tgetl(vptr + n); 1258 size_t len = tgetl(vptr + 2 * n); 1259 int flags = tgetl(vptr + 3 * n); 1260 abi_ulong addr = tgetl(vptr + 4 * n); 1261 socklen_t addrlen = tgetl(vptr + 5 * n); 1262 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1263 } 1264 break; 1265 case SOCKOP_recvfrom: 1266 { 1267 int sockfd = tgetl(vptr); 1268 abi_ulong msg = tgetl(vptr + n); 1269 size_t len = tgetl(vptr + 2 * n); 1270 int flags = tgetl(vptr + 3 * n); 1271 abi_ulong addr = tgetl(vptr + 4 * n); 1272 abi_ulong addrlen = tgetl(vptr + 5 * n); 1273 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1274 } 1275 break; 1276 case SOCKOP_shutdown: 1277 { 1278 int sockfd = tgetl(vptr); 1279 int how = tgetl(vptr + n); 1280 1281 ret = get_errno(shutdown(sockfd, how)); 1282 } 1283 break; 1284 case SOCKOP_sendmsg: 1285 case SOCKOP_recvmsg: 1286 { 1287 int fd; 1288 abi_ulong target_msg; 1289 int flags; 1290 1291 fd = tgetl(vptr); 1292 target_msg = tgetl(vptr + n); 1293 flags = tgetl(vptr + 2 * n); 1294 1295 ret = do_sendrecvmsg(fd, target_msg, flags, 1296 (num == SOCKOP_sendmsg)); 1297 } 1298 break; 1299 case SOCKOP_setsockopt: 1300 { 1301 int sockfd = tgetl(vptr); 1302 int level = tgetl(vptr + n); 1303 int optname = tgetl(vptr + 2 * n); 1304 abi_ulong optval = tgetl(vptr + 3 * n); 1305 socklen_t optlen = tgetl(vptr + 4 * n); 1306 1307 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1308 } 1309 break; 1310 case SOCKOP_getsockopt: 1311 { 1312 int sockfd = tgetl(vptr); 1313 int level = tgetl(vptr + n); 1314 int optname = tgetl(vptr + 2 * n); 1315 abi_ulong optval = tgetl(vptr + 3 * n); 1316 abi_ulong poptlen = tgetl(vptr + 4 * n); 1317 1318 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1319 } 1320 break; 1321 default: 1322 gemu_log("Unsupported socketcall: %d\n", num); 1323 ret = -TARGET_ENOSYS; 1324 break; 1325 } 1326 return ret; 1327 } 1328 #endif 1329 1330 #ifdef TARGET_NR_ipc 1331 #define N_SHM_REGIONS 32 1332 1333 static struct shm_region { 1334 uint32_t start; 1335 uint32_t size; 1336 } shm_regions[N_SHM_REGIONS]; 1337 1338 struct target_ipc_perm 1339 { 1340 abi_long __key; 1341 abi_ulong uid; 1342 abi_ulong gid; 1343 abi_ulong cuid; 1344 abi_ulong cgid; 1345 unsigned short int mode; 1346 unsigned short int __pad1; 1347 unsigned short int __seq; 1348 unsigned short int __pad2; 1349 abi_ulong __unused1; 1350 abi_ulong __unused2; 1351 }; 1352 1353 struct target_semid_ds 1354 { 1355 struct target_ipc_perm sem_perm; 1356 abi_ulong sem_otime; 1357 abi_ulong __unused1; 1358 abi_ulong sem_ctime; 1359 abi_ulong __unused2; 1360 abi_ulong sem_nsems; 1361 abi_ulong __unused3; 1362 abi_ulong __unused4; 1363 }; 1364 1365 static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip, 1366 abi_ulong target_addr) 1367 { 1368 struct target_ipc_perm *target_ip; 1369 struct target_semid_ds *target_sd; 1370 1371 lock_user_struct(target_sd, target_addr, 1); 1372 target_ip=&(target_sd->sem_perm); 1373 host_ip->__key = tswapl(target_ip->__key); 1374 host_ip->uid = tswapl(target_ip->uid); 1375 host_ip->gid = tswapl(target_ip->gid); 1376 host_ip->cuid = tswapl(target_ip->cuid); 1377 host_ip->cgid = tswapl(target_ip->cgid); 1378 host_ip->mode = tswapl(target_ip->mode); 1379 unlock_user_struct(target_sd, target_addr, 0); 1380 } 1381 1382 static inline void host_to_target_ipc_perm(abi_ulong target_addr, 1383 struct ipc_perm *host_ip) 1384 { 1385 struct target_ipc_perm *target_ip; 1386 struct target_semid_ds *target_sd; 1387 1388 lock_user_struct(target_sd, target_addr, 0); 1389 target_ip = &(target_sd->sem_perm); 1390 target_ip->__key = tswapl(host_ip->__key); 1391 target_ip->uid = tswapl(host_ip->uid); 1392 target_ip->gid = tswapl(host_ip->gid); 1393 target_ip->cuid = tswapl(host_ip->cuid); 1394 target_ip->cgid = tswapl(host_ip->cgid); 1395 target_ip->mode = tswapl(host_ip->mode); 1396 unlock_user_struct(target_sd, target_addr, 1); 1397 } 1398 1399 static inline void target_to_host_semid_ds(struct semid_ds *host_sd, 1400 abi_ulong target_addr) 1401 { 1402 struct target_semid_ds *target_sd; 1403 1404 lock_user_struct(target_sd, target_addr, 1); 1405 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1406 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1407 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1408 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1409 unlock_user_struct(target_sd, target_addr, 0); 1410 } 1411 1412 static inline void host_to_target_semid_ds(abi_ulong target_addr, 1413 struct semid_ds *host_sd) 1414 { 1415 struct target_semid_ds *target_sd; 1416 1417 lock_user_struct(target_sd, target_addr, 0); 1418 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1419 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1420 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1421 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1422 unlock_user_struct(target_sd, target_addr, 1); 1423 } 1424 1425 union semun { 1426 int val; 1427 struct semid_ds *buf; 1428 unsigned short *array; 1429 }; 1430 1431 union target_semun { 1432 int val; 1433 abi_long buf; 1434 unsigned short int *array; 1435 }; 1436 1437 static inline void target_to_host_semun(int cmd, 1438 union semun *host_su, 1439 abi_ulong target_addr, 1440 struct semid_ds *ds) 1441 { 1442 union target_semun *target_su; 1443 1444 switch( cmd ) { 1445 case IPC_STAT: 1446 case IPC_SET: 1447 lock_user_struct(target_su, target_addr, 1); 1448 target_to_host_semid_ds(ds,target_su->buf); 1449 host_su->buf = ds; 1450 unlock_user_struct(target_su, target_addr, 0); 1451 break; 1452 case GETVAL: 1453 case SETVAL: 1454 lock_user_struct(target_su, target_addr, 1); 1455 host_su->val = tswapl(target_su->val); 1456 unlock_user_struct(target_su, target_addr, 0); 1457 break; 1458 case GETALL: 1459 case SETALL: 1460 lock_user_struct(target_su, target_addr, 1); 1461 *host_su->array = tswap16(*target_su->array); 1462 unlock_user_struct(target_su, target_addr, 0); 1463 break; 1464 default: 1465 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1466 } 1467 } 1468 1469 static inline void host_to_target_semun(int cmd, 1470 abi_ulong target_addr, 1471 union semun *host_su, 1472 struct semid_ds *ds) 1473 { 1474 union target_semun *target_su; 1475 1476 switch( cmd ) { 1477 case IPC_STAT: 1478 case IPC_SET: 1479 lock_user_struct(target_su, target_addr, 0); 1480 host_to_target_semid_ds(target_su->buf,ds); 1481 unlock_user_struct(target_su, target_addr, 1); 1482 break; 1483 case GETVAL: 1484 case SETVAL: 1485 lock_user_struct(target_su, target_addr, 0); 1486 target_su->val = tswapl(host_su->val); 1487 unlock_user_struct(target_su, target_addr, 1); 1488 break; 1489 case GETALL: 1490 case SETALL: 1491 lock_user_struct(target_su, target_addr, 0); 1492 *target_su->array = tswap16(*host_su->array); 1493 unlock_user_struct(target_su, target_addr, 1); 1494 break; 1495 default: 1496 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1497 } 1498 } 1499 1500 static inline abi_long do_semctl(int first, int second, int third, 1501 abi_long ptr) 1502 { 1503 union semun arg; 1504 struct semid_ds dsarg; 1505 int cmd = third&0xff; 1506 abi_long ret = 0; 1507 1508 switch( cmd ) { 1509 case GETVAL: 1510 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1511 ret = get_errno(semctl(first, second, cmd, arg)); 1512 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1513 break; 1514 case SETVAL: 1515 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1516 ret = get_errno(semctl(first, second, cmd, arg)); 1517 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1518 break; 1519 case GETALL: 1520 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1521 ret = get_errno(semctl(first, second, cmd, arg)); 1522 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1523 break; 1524 case SETALL: 1525 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1526 ret = get_errno(semctl(first, second, cmd, arg)); 1527 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1528 break; 1529 case IPC_STAT: 1530 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1531 ret = get_errno(semctl(first, second, cmd, arg)); 1532 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1533 break; 1534 case IPC_SET: 1535 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1536 ret = get_errno(semctl(first, second, cmd, arg)); 1537 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1538 break; 1539 default: 1540 ret = get_errno(semctl(first, second, cmd, arg)); 1541 } 1542 1543 return ret; 1544 } 1545 1546 struct target_msqid_ds 1547 { 1548 struct target_ipc_perm msg_perm; 1549 abi_ulong msg_stime; 1550 abi_ulong __unused1; 1551 abi_ulong msg_rtime; 1552 abi_ulong __unused2; 1553 abi_ulong msg_ctime; 1554 abi_ulong __unused3; 1555 abi_ulong __msg_cbytes; 1556 abi_ulong msg_qnum; 1557 abi_ulong msg_qbytes; 1558 abi_ulong msg_lspid; 1559 abi_ulong msg_lrpid; 1560 abi_ulong __unused4; 1561 abi_ulong __unused5; 1562 }; 1563 1564 static inline void target_to_host_msqid_ds(struct msqid_ds *host_md, 1565 abi_ulong target_addr) 1566 { 1567 struct target_msqid_ds *target_md; 1568 1569 lock_user_struct(target_md, target_addr, 1); 1570 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr); 1571 host_md->msg_stime = tswapl(target_md->msg_stime); 1572 host_md->msg_rtime = tswapl(target_md->msg_rtime); 1573 host_md->msg_ctime = tswapl(target_md->msg_ctime); 1574 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 1575 host_md->msg_qnum = tswapl(target_md->msg_qnum); 1576 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 1577 host_md->msg_lspid = tswapl(target_md->msg_lspid); 1578 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 1579 unlock_user_struct(target_md, target_addr, 0); 1580 } 1581 1582 static inline void host_to_target_msqid_ds(abi_ulong target_addr, 1583 struct msqid_ds *host_md) 1584 { 1585 struct target_msqid_ds *target_md; 1586 1587 lock_user_struct(target_md, target_addr, 0); 1588 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)); 1589 target_md->msg_stime = tswapl(host_md->msg_stime); 1590 target_md->msg_rtime = tswapl(host_md->msg_rtime); 1591 target_md->msg_ctime = tswapl(host_md->msg_ctime); 1592 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 1593 target_md->msg_qnum = tswapl(host_md->msg_qnum); 1594 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 1595 target_md->msg_lspid = tswapl(host_md->msg_lspid); 1596 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 1597 unlock_user_struct(target_md, target_addr, 1); 1598 } 1599 1600 static inline abi_long do_msgctl(int first, int second, abi_long ptr) 1601 { 1602 struct msqid_ds dsarg; 1603 int cmd = second&0xff; 1604 abi_long ret = 0; 1605 switch( cmd ) { 1606 case IPC_STAT: 1607 case IPC_SET: 1608 target_to_host_msqid_ds(&dsarg,ptr); 1609 ret = get_errno(msgctl(first, cmd, &dsarg)); 1610 host_to_target_msqid_ds(ptr,&dsarg); 1611 default: 1612 ret = get_errno(msgctl(first, cmd, &dsarg)); 1613 } 1614 return ret; 1615 } 1616 1617 struct target_msgbuf { 1618 abi_ulong mtype; 1619 char mtext[1]; 1620 }; 1621 1622 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 1623 unsigned int msgsz, int msgflg) 1624 { 1625 struct target_msgbuf *target_mb; 1626 struct msgbuf *host_mb; 1627 abi_long ret = 0; 1628 1629 lock_user_struct(target_mb,msgp,0); 1630 host_mb = malloc(msgsz+sizeof(long)); 1631 host_mb->mtype = tswapl(target_mb->mtype); 1632 memcpy(host_mb->mtext,target_mb->mtext,msgsz); 1633 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 1634 free(host_mb); 1635 unlock_user_struct(target_mb, msgp, 0); 1636 1637 return ret; 1638 } 1639 1640 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 1641 unsigned int msgsz, int msgtype, 1642 int msgflg) 1643 { 1644 struct target_msgbuf *target_mb; 1645 struct msgbuf *host_mb; 1646 abi_long ret = 0; 1647 1648 lock_user_struct(target_mb, msgp, 0); 1649 host_mb = malloc(msgsz+sizeof(long)); 1650 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg)); 1651 if (ret > 0) 1652 memcpy(target_mb->mtext, host_mb->mtext, ret); 1653 target_mb->mtype = tswapl(host_mb->mtype); 1654 free(host_mb); 1655 unlock_user_struct(target_mb, msgp, 0); 1656 1657 return ret; 1658 } 1659 1660 /* ??? This only works with linear mappings. */ 1661 /* do_ipc() must return target values and target errnos. */ 1662 static abi_long do_ipc(unsigned int call, int first, 1663 int second, int third, 1664 abi_long ptr, abi_long fifth) 1665 { 1666 int version; 1667 abi_long ret = 0; 1668 unsigned long raddr; 1669 struct shmid_ds shm_info; 1670 int i; 1671 1672 version = call >> 16; 1673 call &= 0xffff; 1674 1675 switch (call) { 1676 case IPCOP_semop: 1677 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1678 break; 1679 1680 case IPCOP_semget: 1681 ret = get_errno(semget(first, second, third)); 1682 break; 1683 1684 case IPCOP_semctl: 1685 ret = do_semctl(first, second, third, ptr); 1686 break; 1687 1688 case IPCOP_semtimedop: 1689 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1690 ret = -TARGET_ENOSYS; 1691 break; 1692 1693 case IPCOP_msgget: 1694 ret = get_errno(msgget(first, second)); 1695 break; 1696 1697 case IPCOP_msgsnd: 1698 ret = do_msgsnd(first, ptr, second, third); 1699 break; 1700 1701 case IPCOP_msgctl: 1702 ret = do_msgctl(first, second, ptr); 1703 break; 1704 1705 case IPCOP_msgrcv: 1706 { 1707 struct ipc_kludge 1708 { 1709 void *__unbounded msgp; 1710 long int msgtyp; 1711 }; 1712 1713 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1714 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1715 1716 ret = do_msgrcv(first, (long)msgp, second, 0, third); 1717 1718 } 1719 break; 1720 1721 case IPCOP_shmat: 1722 /* SHM_* flags are the same on all linux platforms */ 1723 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1724 if (is_error(ret)) 1725 break; 1726 raddr = ret; 1727 /* find out the length of the shared memory segment */ 1728 1729 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1730 if (is_error(ret)) { 1731 /* can't get length, bail out */ 1732 shmdt((void *) raddr); 1733 break; 1734 } 1735 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1736 PAGE_VALID | PAGE_READ | 1737 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1738 for (i = 0; i < N_SHM_REGIONS; ++i) { 1739 if (shm_regions[i].start == 0) { 1740 shm_regions[i].start = raddr; 1741 shm_regions[i].size = shm_info.shm_segsz; 1742 break; 1743 } 1744 } 1745 if (put_user(raddr, (abi_ulong *)third)) 1746 return -TARGET_EFAULT; 1747 ret = 0; 1748 break; 1749 case IPCOP_shmdt: 1750 for (i = 0; i < N_SHM_REGIONS; ++i) { 1751 if (shm_regions[i].start == ptr) { 1752 shm_regions[i].start = 0; 1753 page_set_flags(ptr, shm_regions[i].size, 0); 1754 break; 1755 } 1756 } 1757 ret = get_errno(shmdt((void *) ptr)); 1758 break; 1759 1760 case IPCOP_shmget: 1761 /* IPC_* flag values are the same on all linux platforms */ 1762 ret = get_errno(shmget(first, second, third)); 1763 break; 1764 1765 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1766 case IPCOP_shmctl: 1767 switch(second) { 1768 case IPC_RMID: 1769 case SHM_LOCK: 1770 case SHM_UNLOCK: 1771 ret = get_errno(shmctl(first, second, NULL)); 1772 break; 1773 default: 1774 goto unimplemented; 1775 } 1776 break; 1777 default: 1778 unimplemented: 1779 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1780 ret = -TARGET_ENOSYS; 1781 break; 1782 } 1783 return ret; 1784 } 1785 #endif 1786 1787 /* kernel structure types definitions */ 1788 #define IFNAMSIZ 16 1789 1790 #define STRUCT(name, list...) STRUCT_ ## name, 1791 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1792 enum { 1793 #include "syscall_types.h" 1794 }; 1795 #undef STRUCT 1796 #undef STRUCT_SPECIAL 1797 1798 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1799 #define STRUCT_SPECIAL(name) 1800 #include "syscall_types.h" 1801 #undef STRUCT 1802 #undef STRUCT_SPECIAL 1803 1804 typedef struct IOCTLEntry { 1805 unsigned int target_cmd; 1806 unsigned int host_cmd; 1807 const char *name; 1808 int access; 1809 const argtype arg_type[5]; 1810 } IOCTLEntry; 1811 1812 #define IOC_R 0x0001 1813 #define IOC_W 0x0002 1814 #define IOC_RW (IOC_R | IOC_W) 1815 1816 #define MAX_STRUCT_SIZE 4096 1817 1818 IOCTLEntry ioctl_entries[] = { 1819 #define IOCTL(cmd, access, types...) \ 1820 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1821 #include "ioctls.h" 1822 { 0, 0, }, 1823 }; 1824 1825 /* ??? Implement proper locking for ioctls. */ 1826 /* do_ioctl() Must return target values and target errnos. */ 1827 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 1828 { 1829 const IOCTLEntry *ie; 1830 const argtype *arg_type; 1831 abi_long ret; 1832 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1833 int target_size; 1834 void *argptr; 1835 1836 ie = ioctl_entries; 1837 for(;;) { 1838 if (ie->target_cmd == 0) { 1839 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 1840 return -TARGET_ENOSYS; 1841 } 1842 if (ie->target_cmd == cmd) 1843 break; 1844 ie++; 1845 } 1846 arg_type = ie->arg_type; 1847 #if defined(DEBUG) 1848 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 1849 #endif 1850 switch(arg_type[0]) { 1851 case TYPE_NULL: 1852 /* no argument */ 1853 ret = get_errno(ioctl(fd, ie->host_cmd)); 1854 break; 1855 case TYPE_PTRVOID: 1856 case TYPE_INT: 1857 /* int argment */ 1858 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1859 break; 1860 case TYPE_PTR: 1861 arg_type++; 1862 target_size = thunk_type_size(arg_type, 0); 1863 switch(ie->access) { 1864 case IOC_R: 1865 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1866 if (!is_error(ret)) { 1867 argptr = lock_user(arg, target_size, 0); 1868 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1869 unlock_user(argptr, arg, target_size); 1870 } 1871 break; 1872 case IOC_W: 1873 argptr = lock_user(arg, target_size, 1); 1874 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1875 unlock_user(argptr, arg, 0); 1876 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1877 break; 1878 default: 1879 case IOC_RW: 1880 argptr = lock_user(arg, target_size, 1); 1881 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1882 unlock_user(argptr, arg, 0); 1883 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1884 if (!is_error(ret)) { 1885 argptr = lock_user(arg, target_size, 0); 1886 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1887 unlock_user(argptr, arg, target_size); 1888 } 1889 break; 1890 } 1891 break; 1892 default: 1893 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 1894 (long)cmd, arg_type[0]); 1895 ret = -TARGET_ENOSYS; 1896 break; 1897 } 1898 return ret; 1899 } 1900 1901 bitmask_transtbl iflag_tbl[] = { 1902 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1903 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1904 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1905 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1906 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1907 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1908 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1909 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1910 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1911 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1912 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1913 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1914 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1915 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1916 { 0, 0, 0, 0 } 1917 }; 1918 1919 bitmask_transtbl oflag_tbl[] = { 1920 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1921 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1922 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1923 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1924 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1925 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1926 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1927 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1928 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1929 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1930 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1931 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1932 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1933 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1934 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1935 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1936 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1937 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1938 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1939 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1940 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1941 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1942 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1943 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1944 { 0, 0, 0, 0 } 1945 }; 1946 1947 bitmask_transtbl cflag_tbl[] = { 1948 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1949 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1950 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1951 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1952 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1953 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1954 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1955 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1956 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1957 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1958 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1959 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1960 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1961 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1962 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1963 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1964 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1965 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1966 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1967 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1968 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1969 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1970 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1971 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1972 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1973 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1974 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1975 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1976 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1977 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1978 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1979 { 0, 0, 0, 0 } 1980 }; 1981 1982 bitmask_transtbl lflag_tbl[] = { 1983 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1984 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1985 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1986 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1987 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1988 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1989 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1990 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1991 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1992 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1993 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1994 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1995 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1996 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1997 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1998 { 0, 0, 0, 0 } 1999 }; 2000 2001 static void target_to_host_termios (void *dst, const void *src) 2002 { 2003 struct host_termios *host = dst; 2004 const struct target_termios *target = src; 2005 2006 host->c_iflag = 2007 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 2008 host->c_oflag = 2009 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 2010 host->c_cflag = 2011 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 2012 host->c_lflag = 2013 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 2014 host->c_line = target->c_line; 2015 2016 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 2017 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 2018 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 2019 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 2020 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 2021 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 2022 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 2023 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 2024 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 2025 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 2026 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 2027 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 2028 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 2029 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 2030 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 2031 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 2032 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 2033 } 2034 2035 static void host_to_target_termios (void *dst, const void *src) 2036 { 2037 struct target_termios *target = dst; 2038 const struct host_termios *host = src; 2039 2040 target->c_iflag = 2041 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 2042 target->c_oflag = 2043 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 2044 target->c_cflag = 2045 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 2046 target->c_lflag = 2047 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 2048 target->c_line = host->c_line; 2049 2050 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 2051 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 2052 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 2053 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 2054 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 2055 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 2056 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 2057 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 2058 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 2059 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 2060 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 2061 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 2062 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 2063 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 2064 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 2065 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 2066 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 2067 } 2068 2069 StructEntry struct_termios_def = { 2070 .convert = { host_to_target_termios, target_to_host_termios }, 2071 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 2072 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 2073 }; 2074 2075 static bitmask_transtbl mmap_flags_tbl[] = { 2076 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 2077 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 2078 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 2079 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 2080 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 2081 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 2082 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 2083 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 2084 { 0, 0, 0, 0 } 2085 }; 2086 2087 static bitmask_transtbl fcntl_flags_tbl[] = { 2088 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 2089 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 2090 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 2091 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 2092 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 2093 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 2094 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 2095 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 2096 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 2097 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 2098 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 2099 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 2100 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 2101 #if defined(O_DIRECT) 2102 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 2103 #endif 2104 { 0, 0, 0, 0 } 2105 }; 2106 2107 #if defined(TARGET_I386) 2108 2109 /* NOTE: there is really one LDT for all the threads */ 2110 uint8_t *ldt_table; 2111 2112 static int read_ldt(abi_ulong ptr, unsigned long bytecount) 2113 { 2114 int size; 2115 void *p; 2116 2117 if (!ldt_table) 2118 return 0; 2119 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 2120 if (size > bytecount) 2121 size = bytecount; 2122 p = lock_user(ptr, size, 0); 2123 /* ??? Shoudl this by byteswapped? */ 2124 memcpy(p, ldt_table, size); 2125 unlock_user(p, ptr, size); 2126 return size; 2127 } 2128 2129 /* XXX: add locking support */ 2130 /* write_ldt() returns host errnos */ 2131 static int write_ldt(CPUX86State *env, 2132 abi_ulong ptr, unsigned long bytecount, int oldmode) 2133 { 2134 struct target_modify_ldt_ldt_s ldt_info; 2135 struct target_modify_ldt_ldt_s *target_ldt_info; 2136 int seg_32bit, contents, read_exec_only, limit_in_pages; 2137 int seg_not_present, useable; 2138 uint32_t *lp, entry_1, entry_2; 2139 2140 if (bytecount != sizeof(ldt_info)) 2141 return -EINVAL; 2142 lock_user_struct(target_ldt_info, ptr, 1); 2143 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2144 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2145 ldt_info.limit = tswap32(target_ldt_info->limit); 2146 ldt_info.flags = tswap32(target_ldt_info->flags); 2147 unlock_user_struct(target_ldt_info, ptr, 0); 2148 2149 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2150 return -EINVAL; 2151 seg_32bit = ldt_info.flags & 1; 2152 contents = (ldt_info.flags >> 1) & 3; 2153 read_exec_only = (ldt_info.flags >> 3) & 1; 2154 limit_in_pages = (ldt_info.flags >> 4) & 1; 2155 seg_not_present = (ldt_info.flags >> 5) & 1; 2156 useable = (ldt_info.flags >> 6) & 1; 2157 2158 if (contents == 3) { 2159 if (oldmode) 2160 return -EINVAL; 2161 if (seg_not_present == 0) 2162 return -EINVAL; 2163 } 2164 /* allocate the LDT */ 2165 if (!ldt_table) { 2166 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2167 if (!ldt_table) 2168 return -ENOMEM; 2169 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2170 env->ldt.base = h2g(ldt_table); 2171 env->ldt.limit = 0xffff; 2172 } 2173 2174 /* NOTE: same code as Linux kernel */ 2175 /* Allow LDTs to be cleared by the user. */ 2176 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2177 if (oldmode || 2178 (contents == 0 && 2179 read_exec_only == 1 && 2180 seg_32bit == 0 && 2181 limit_in_pages == 0 && 2182 seg_not_present == 1 && 2183 useable == 0 )) { 2184 entry_1 = 0; 2185 entry_2 = 0; 2186 goto install; 2187 } 2188 } 2189 2190 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2191 (ldt_info.limit & 0x0ffff); 2192 entry_2 = (ldt_info.base_addr & 0xff000000) | 2193 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2194 (ldt_info.limit & 0xf0000) | 2195 ((read_exec_only ^ 1) << 9) | 2196 (contents << 10) | 2197 ((seg_not_present ^ 1) << 15) | 2198 (seg_32bit << 22) | 2199 (limit_in_pages << 23) | 2200 0x7000; 2201 if (!oldmode) 2202 entry_2 |= (useable << 20); 2203 2204 /* Install the new entry ... */ 2205 install: 2206 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2207 lp[0] = tswap32(entry_1); 2208 lp[1] = tswap32(entry_2); 2209 return 0; 2210 } 2211 2212 /* specific and weird i386 syscalls */ 2213 /* do_modify_ldt() returns host errnos (it is inconsistent with the 2214 other do_*() functions which return target errnos). */ 2215 int do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, unsigned long bytecount) 2216 { 2217 int ret = -ENOSYS; 2218 2219 switch (func) { 2220 case 0: 2221 ret = read_ldt(ptr, bytecount); 2222 break; 2223 case 1: 2224 ret = write_ldt(env, ptr, bytecount, 1); 2225 break; 2226 case 0x11: 2227 ret = write_ldt(env, ptr, bytecount, 0); 2228 break; 2229 } 2230 return ret; 2231 } 2232 2233 #endif /* defined(TARGET_I386) */ 2234 2235 /* this stack is the equivalent of the kernel stack associated with a 2236 thread/process */ 2237 #define NEW_STACK_SIZE 8192 2238 2239 static int clone_func(void *arg) 2240 { 2241 CPUState *env = arg; 2242 cpu_loop(env); 2243 /* never exits */ 2244 return 0; 2245 } 2246 2247 /* do_fork() Must return host values and target errnos (unlike most 2248 do_*() functions). */ 2249 int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp) 2250 { 2251 int ret; 2252 TaskState *ts; 2253 uint8_t *new_stack; 2254 CPUState *new_env; 2255 2256 if (flags & CLONE_VM) { 2257 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2258 memset(ts, 0, sizeof(TaskState)); 2259 new_stack = ts->stack; 2260 ts->used = 1; 2261 /* add in task state list */ 2262 ts->next = first_task_state; 2263 first_task_state = ts; 2264 /* we create a new CPU instance. */ 2265 new_env = cpu_copy(env); 2266 #if defined(TARGET_I386) 2267 if (!newsp) 2268 newsp = env->regs[R_ESP]; 2269 new_env->regs[R_ESP] = newsp; 2270 new_env->regs[R_EAX] = 0; 2271 #elif defined(TARGET_ARM) 2272 if (!newsp) 2273 newsp = env->regs[13]; 2274 new_env->regs[13] = newsp; 2275 new_env->regs[0] = 0; 2276 #elif defined(TARGET_SPARC) 2277 if (!newsp) 2278 newsp = env->regwptr[22]; 2279 new_env->regwptr[22] = newsp; 2280 new_env->regwptr[0] = 0; 2281 /* XXXXX */ 2282 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2283 #elif defined(TARGET_M68K) 2284 if (!newsp) 2285 newsp = env->aregs[7]; 2286 new_env->aregs[7] = newsp; 2287 new_env->dregs[0] = 0; 2288 /* ??? is this sufficient? */ 2289 #elif defined(TARGET_MIPS) 2290 if (!newsp) 2291 newsp = env->gpr[29][env->current_tc]; 2292 new_env->gpr[29][env->current_tc] = newsp; 2293 #elif defined(TARGET_PPC) 2294 if (!newsp) 2295 newsp = env->gpr[1]; 2296 new_env->gpr[1] = newsp; 2297 { 2298 int i; 2299 for (i = 7; i < 32; i++) 2300 new_env->gpr[i] = 0; 2301 } 2302 #elif defined(TARGET_SH4) 2303 if (!newsp) 2304 newsp = env->gregs[15]; 2305 new_env->gregs[15] = newsp; 2306 /* XXXXX */ 2307 #elif defined(TARGET_ALPHA) 2308 if (!newsp) 2309 newsp = env->ir[30]; 2310 new_env->ir[30] = newsp; 2311 /* ? */ 2312 { 2313 int i; 2314 for (i = 7; i < 30; i++) 2315 new_env->ir[i] = 0; 2316 } 2317 #elif defined(TARGET_CRIS) 2318 if (!newsp) 2319 newsp = env->regs[14]; 2320 new_env->regs[14] = newsp; 2321 #else 2322 #error unsupported target CPU 2323 #endif 2324 new_env->opaque = ts; 2325 #ifdef __ia64__ 2326 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2327 #else 2328 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2329 #endif 2330 } else { 2331 /* if no CLONE_VM, we consider it is a fork */ 2332 if ((flags & ~CSIGNAL) != 0) 2333 return -EINVAL; 2334 ret = fork(); 2335 } 2336 return ret; 2337 } 2338 2339 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 2340 { 2341 struct flock fl; 2342 struct target_flock *target_fl; 2343 struct flock64 fl64; 2344 struct target_flock64 *target_fl64; 2345 abi_long ret; 2346 2347 switch(cmd) { 2348 case TARGET_F_GETLK: 2349 lock_user_struct(target_fl, arg, 1); 2350 fl.l_type = tswap16(target_fl->l_type); 2351 fl.l_whence = tswap16(target_fl->l_whence); 2352 fl.l_start = tswapl(target_fl->l_start); 2353 fl.l_len = tswapl(target_fl->l_len); 2354 fl.l_pid = tswapl(target_fl->l_pid); 2355 unlock_user_struct(target_fl, arg, 0); 2356 ret = fcntl(fd, cmd, &fl); 2357 if (ret == 0) { 2358 lock_user_struct(target_fl, arg, 0); 2359 target_fl->l_type = tswap16(fl.l_type); 2360 target_fl->l_whence = tswap16(fl.l_whence); 2361 target_fl->l_start = tswapl(fl.l_start); 2362 target_fl->l_len = tswapl(fl.l_len); 2363 target_fl->l_pid = tswapl(fl.l_pid); 2364 unlock_user_struct(target_fl, arg, 1); 2365 } 2366 break; 2367 2368 case TARGET_F_SETLK: 2369 case TARGET_F_SETLKW: 2370 lock_user_struct(target_fl, arg, 1); 2371 fl.l_type = tswap16(target_fl->l_type); 2372 fl.l_whence = tswap16(target_fl->l_whence); 2373 fl.l_start = tswapl(target_fl->l_start); 2374 fl.l_len = tswapl(target_fl->l_len); 2375 fl.l_pid = tswapl(target_fl->l_pid); 2376 unlock_user_struct(target_fl, arg, 0); 2377 ret = fcntl(fd, cmd, &fl); 2378 break; 2379 2380 case TARGET_F_GETLK64: 2381 lock_user_struct(target_fl64, arg, 1); 2382 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2383 fl64.l_whence = tswap16(target_fl64->l_whence); 2384 fl64.l_start = tswapl(target_fl64->l_start); 2385 fl64.l_len = tswapl(target_fl64->l_len); 2386 fl64.l_pid = tswap16(target_fl64->l_pid); 2387 unlock_user_struct(target_fl64, arg, 0); 2388 ret = fcntl(fd, cmd >> 1, &fl64); 2389 if (ret == 0) { 2390 lock_user_struct(target_fl64, arg, 0); 2391 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2392 target_fl64->l_whence = tswap16(fl64.l_whence); 2393 target_fl64->l_start = tswapl(fl64.l_start); 2394 target_fl64->l_len = tswapl(fl64.l_len); 2395 target_fl64->l_pid = tswapl(fl64.l_pid); 2396 unlock_user_struct(target_fl64, arg, 1); 2397 } 2398 break; 2399 case TARGET_F_SETLK64: 2400 case TARGET_F_SETLKW64: 2401 lock_user_struct(target_fl64, arg, 1); 2402 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2403 fl64.l_whence = tswap16(target_fl64->l_whence); 2404 fl64.l_start = tswapl(target_fl64->l_start); 2405 fl64.l_len = tswapl(target_fl64->l_len); 2406 fl64.l_pid = tswap16(target_fl64->l_pid); 2407 unlock_user_struct(target_fl64, arg, 0); 2408 ret = fcntl(fd, cmd >> 1, &fl64); 2409 break; 2410 2411 case F_GETFL: 2412 ret = fcntl(fd, cmd, arg); 2413 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2414 break; 2415 2416 case F_SETFL: 2417 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 2418 break; 2419 2420 default: 2421 ret = fcntl(fd, cmd, arg); 2422 break; 2423 } 2424 return ret; 2425 } 2426 2427 #ifdef USE_UID16 2428 2429 static inline int high2lowuid(int uid) 2430 { 2431 if (uid > 65535) 2432 return 65534; 2433 else 2434 return uid; 2435 } 2436 2437 static inline int high2lowgid(int gid) 2438 { 2439 if (gid > 65535) 2440 return 65534; 2441 else 2442 return gid; 2443 } 2444 2445 static inline int low2highuid(int uid) 2446 { 2447 if ((int16_t)uid == -1) 2448 return -1; 2449 else 2450 return uid; 2451 } 2452 2453 static inline int low2highgid(int gid) 2454 { 2455 if ((int16_t)gid == -1) 2456 return -1; 2457 else 2458 return gid; 2459 } 2460 2461 #endif /* USE_UID16 */ 2462 2463 void syscall_init(void) 2464 { 2465 IOCTLEntry *ie; 2466 const argtype *arg_type; 2467 int size; 2468 2469 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2470 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2471 #include "syscall_types.h" 2472 #undef STRUCT 2473 #undef STRUCT_SPECIAL 2474 2475 /* we patch the ioctl size if necessary. We rely on the fact that 2476 no ioctl has all the bits at '1' in the size field */ 2477 ie = ioctl_entries; 2478 while (ie->target_cmd != 0) { 2479 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2480 TARGET_IOC_SIZEMASK) { 2481 arg_type = ie->arg_type; 2482 if (arg_type[0] != TYPE_PTR) { 2483 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2484 ie->target_cmd); 2485 exit(1); 2486 } 2487 arg_type++; 2488 size = thunk_type_size(arg_type, 0); 2489 ie->target_cmd = (ie->target_cmd & 2490 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2491 (size << TARGET_IOC_SIZESHIFT); 2492 } 2493 /* automatic consistency check if same arch */ 2494 #if defined(__i386__) && defined(TARGET_I386) 2495 if (ie->target_cmd != ie->host_cmd) { 2496 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2497 ie->target_cmd, ie->host_cmd); 2498 } 2499 #endif 2500 ie++; 2501 } 2502 } 2503 2504 #if TARGET_ABI_BITS == 32 2505 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2506 { 2507 #ifdef TARGET_WORDS_BIG_ENDIAN 2508 return ((uint64_t)word0 << 32) | word1; 2509 #else 2510 return ((uint64_t)word1 << 32) | word0; 2511 #endif 2512 } 2513 #else /* TARGET_ABI_BITS == 32 */ 2514 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 2515 { 2516 return word0; 2517 } 2518 #endif /* TARGET_ABI_BITS != 32 */ 2519 2520 #ifdef TARGET_NR_truncate64 2521 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 2522 abi_long arg2, 2523 abi_long arg3, 2524 abi_long arg4) 2525 { 2526 #ifdef TARGET_ARM 2527 if (((CPUARMState *)cpu_env)->eabi) 2528 { 2529 arg2 = arg3; 2530 arg3 = arg4; 2531 } 2532 #endif 2533 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 2534 } 2535 #endif 2536 2537 #ifdef TARGET_NR_ftruncate64 2538 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 2539 abi_long arg2, 2540 abi_long arg3, 2541 abi_long arg4) 2542 { 2543 #ifdef TARGET_ARM 2544 if (((CPUARMState *)cpu_env)->eabi) 2545 { 2546 arg2 = arg3; 2547 arg3 = arg4; 2548 } 2549 #endif 2550 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 2551 } 2552 #endif 2553 2554 static inline void target_to_host_timespec(struct timespec *host_ts, 2555 abi_ulong target_addr) 2556 { 2557 struct target_timespec *target_ts; 2558 2559 lock_user_struct(target_ts, target_addr, 1); 2560 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2561 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2562 unlock_user_struct(target_ts, target_addr, 0); 2563 } 2564 2565 static inline void host_to_target_timespec(abi_ulong target_addr, 2566 struct timespec *host_ts) 2567 { 2568 struct target_timespec *target_ts; 2569 2570 lock_user_struct(target_ts, target_addr, 0); 2571 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2572 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2573 unlock_user_struct(target_ts, target_addr, 1); 2574 } 2575 2576 /* do_syscall() should always have a single exit point at the end so 2577 that actions, such as logging of syscall results, can be performed. 2578 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 2579 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 2580 abi_long arg2, abi_long arg3, abi_long arg4, 2581 abi_long arg5, abi_long arg6) 2582 { 2583 abi_long ret; 2584 struct stat st; 2585 struct statfs stfs; 2586 void *p; 2587 2588 #ifdef DEBUG 2589 gemu_log("syscall %d", num); 2590 #endif 2591 switch(num) { 2592 case TARGET_NR_exit: 2593 #ifdef HAVE_GPROF 2594 _mcleanup(); 2595 #endif 2596 gdb_exit(cpu_env, arg1); 2597 /* XXX: should free thread stack and CPU env */ 2598 _exit(arg1); 2599 ret = 0; /* avoid warning */ 2600 break; 2601 case TARGET_NR_read: 2602 page_unprotect_range(arg2, arg3); 2603 p = lock_user(arg2, arg3, 0); 2604 ret = get_errno(read(arg1, p, arg3)); 2605 unlock_user(p, arg2, ret); 2606 break; 2607 case TARGET_NR_write: 2608 p = lock_user(arg2, arg3, 1); 2609 ret = get_errno(write(arg1, p, arg3)); 2610 unlock_user(p, arg2, 0); 2611 break; 2612 case TARGET_NR_open: 2613 p = lock_user_string(arg1); 2614 ret = get_errno(open(path(p), 2615 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2616 arg3)); 2617 unlock_user(p, arg1, 0); 2618 break; 2619 #if defined(TARGET_NR_openat) && defined(__NR_openat) 2620 case TARGET_NR_openat: 2621 if (!arg2) { 2622 ret = -TARGET_EFAULT; 2623 goto fail; 2624 } 2625 p = lock_user_string(arg2); 2626 if (!access_ok(VERIFY_READ, p, 1)) 2627 /* Don't "goto fail" so that cleanup can happen. */ 2628 ret = -TARGET_EFAULT; 2629 else 2630 ret = get_errno(sys_openat(arg1, 2631 path(p), 2632 target_to_host_bitmask(arg3, fcntl_flags_tbl), 2633 arg4)); 2634 if (p) 2635 unlock_user(p, arg2, 0); 2636 break; 2637 #endif 2638 case TARGET_NR_close: 2639 ret = get_errno(close(arg1)); 2640 break; 2641 case TARGET_NR_brk: 2642 ret = do_brk(arg1); 2643 break; 2644 case TARGET_NR_fork: 2645 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2646 break; 2647 #ifdef TARGET_NR_waitpid 2648 case TARGET_NR_waitpid: 2649 { 2650 int status; 2651 ret = get_errno(waitpid(arg1, &status, arg3)); 2652 if (!is_error(ret) && arg2) 2653 tput32(arg2, status); 2654 } 2655 break; 2656 #endif 2657 #ifdef TARGET_NR_creat /* not on alpha */ 2658 case TARGET_NR_creat: 2659 p = lock_user_string(arg1); 2660 ret = get_errno(creat(p, arg2)); 2661 unlock_user(p, arg1, 0); 2662 break; 2663 #endif 2664 case TARGET_NR_link: 2665 { 2666 void * p2; 2667 p = lock_user_string(arg1); 2668 p2 = lock_user_string(arg2); 2669 ret = get_errno(link(p, p2)); 2670 unlock_user(p2, arg2, 0); 2671 unlock_user(p, arg1, 0); 2672 } 2673 break; 2674 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 2675 case TARGET_NR_linkat: 2676 if (!arg2 || !arg4) { 2677 ret = -TARGET_EFAULT; 2678 goto fail; 2679 } 2680 { 2681 void * p2 = NULL; 2682 p = lock_user_string(arg2); 2683 p2 = lock_user_string(arg4); 2684 if (!access_ok(VERIFY_READ, p, 1) 2685 || !access_ok(VERIFY_READ, p2, 1)) 2686 /* Don't "goto fail" so that cleanup can happen. */ 2687 ret = -TARGET_EFAULT; 2688 else 2689 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 2690 if (p2) 2691 unlock_user(p, arg2, 0); 2692 if (p) 2693 unlock_user(p2, arg4, 0); 2694 } 2695 break; 2696 #endif 2697 case TARGET_NR_unlink: 2698 p = lock_user_string(arg1); 2699 ret = get_errno(unlink(p)); 2700 unlock_user(p, arg1, 0); 2701 break; 2702 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 2703 case TARGET_NR_unlinkat: 2704 if (!arg2) { 2705 ret = -TARGET_EFAULT; 2706 goto fail; 2707 } 2708 p = lock_user_string(arg2); 2709 if (!access_ok(VERIFY_READ, p, 1)) 2710 /* Don't "goto fail" so that cleanup can happen. */ 2711 ret = -TARGET_EFAULT; 2712 else 2713 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 2714 if (p) 2715 unlock_user(p, arg2, 0); 2716 break; 2717 #endif 2718 case TARGET_NR_execve: 2719 { 2720 char **argp, **envp; 2721 int argc, envc; 2722 abi_ulong gp; 2723 abi_ulong guest_argp; 2724 abi_ulong guest_envp; 2725 abi_ulong addr; 2726 char **q; 2727 2728 argc = 0; 2729 guest_argp = arg2; 2730 for (gp = guest_argp; tgetl(gp); gp++) 2731 argc++; 2732 envc = 0; 2733 guest_envp = arg3; 2734 for (gp = guest_envp; tgetl(gp); gp++) 2735 envc++; 2736 2737 argp = alloca((argc + 1) * sizeof(void *)); 2738 envp = alloca((envc + 1) * sizeof(void *)); 2739 2740 for (gp = guest_argp, q = argp; ; 2741 gp += sizeof(abi_ulong), q++) { 2742 addr = tgetl(gp); 2743 if (!addr) 2744 break; 2745 *q = lock_user_string(addr); 2746 } 2747 *q = NULL; 2748 2749 for (gp = guest_envp, q = envp; ; 2750 gp += sizeof(abi_ulong), q++) { 2751 addr = tgetl(gp); 2752 if (!addr) 2753 break; 2754 *q = lock_user_string(addr); 2755 } 2756 *q = NULL; 2757 2758 p = lock_user_string(arg1); 2759 ret = get_errno(execve(p, argp, envp)); 2760 unlock_user(p, arg1, 0); 2761 2762 for (gp = guest_argp, q = argp; *q; 2763 gp += sizeof(abi_ulong), q++) { 2764 addr = tgetl(gp); 2765 unlock_user(*q, addr, 0); 2766 } 2767 for (gp = guest_envp, q = envp; *q; 2768 gp += sizeof(abi_ulong), q++) { 2769 addr = tgetl(gp); 2770 unlock_user(*q, addr, 0); 2771 } 2772 } 2773 break; 2774 case TARGET_NR_chdir: 2775 p = lock_user_string(arg1); 2776 ret = get_errno(chdir(p)); 2777 unlock_user(p, arg1, 0); 2778 break; 2779 #ifdef TARGET_NR_time 2780 case TARGET_NR_time: 2781 { 2782 time_t host_time; 2783 ret = get_errno(time(&host_time)); 2784 if (!is_error(ret) && arg1) 2785 tputl(arg1, host_time); 2786 } 2787 break; 2788 #endif 2789 case TARGET_NR_mknod: 2790 p = lock_user_string(arg1); 2791 ret = get_errno(mknod(p, arg2, arg3)); 2792 unlock_user(p, arg1, 0); 2793 break; 2794 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 2795 case TARGET_NR_mknodat: 2796 if (!arg2) { 2797 ret = -TARGET_EFAULT; 2798 goto fail; 2799 } 2800 p = lock_user_string(arg2); 2801 if (!access_ok(VERIFY_READ, p, 1)) 2802 /* Don't "goto fail" so that cleanup can happen. */ 2803 ret = -TARGET_EFAULT; 2804 else 2805 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 2806 if (p) 2807 unlock_user(p, arg2, 0); 2808 break; 2809 #endif 2810 case TARGET_NR_chmod: 2811 p = lock_user_string(arg1); 2812 ret = get_errno(chmod(p, arg2)); 2813 unlock_user(p, arg1, 0); 2814 break; 2815 #ifdef TARGET_NR_break 2816 case TARGET_NR_break: 2817 goto unimplemented; 2818 #endif 2819 #ifdef TARGET_NR_oldstat 2820 case TARGET_NR_oldstat: 2821 goto unimplemented; 2822 #endif 2823 case TARGET_NR_lseek: 2824 ret = get_errno(lseek(arg1, arg2, arg3)); 2825 break; 2826 #ifdef TARGET_NR_getxpid 2827 case TARGET_NR_getxpid: 2828 #else 2829 case TARGET_NR_getpid: 2830 #endif 2831 ret = get_errno(getpid()); 2832 break; 2833 case TARGET_NR_mount: 2834 { 2835 /* need to look at the data field */ 2836 void *p2, *p3; 2837 p = lock_user_string(arg1); 2838 p2 = lock_user_string(arg2); 2839 p3 = lock_user_string(arg3); 2840 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2841 unlock_user(p, arg1, 0); 2842 unlock_user(p2, arg2, 0); 2843 unlock_user(p3, arg3, 0); 2844 break; 2845 } 2846 #ifdef TARGET_NR_umount 2847 case TARGET_NR_umount: 2848 p = lock_user_string(arg1); 2849 ret = get_errno(umount(p)); 2850 unlock_user(p, arg1, 0); 2851 break; 2852 #endif 2853 #ifdef TARGET_NR_stime /* not on alpha */ 2854 case TARGET_NR_stime: 2855 { 2856 time_t host_time; 2857 host_time = tgetl(arg1); 2858 ret = get_errno(stime(&host_time)); 2859 } 2860 break; 2861 #endif 2862 case TARGET_NR_ptrace: 2863 goto unimplemented; 2864 #ifdef TARGET_NR_alarm /* not on alpha */ 2865 case TARGET_NR_alarm: 2866 ret = alarm(arg1); 2867 break; 2868 #endif 2869 #ifdef TARGET_NR_oldfstat 2870 case TARGET_NR_oldfstat: 2871 goto unimplemented; 2872 #endif 2873 #ifdef TARGET_NR_pause /* not on alpha */ 2874 case TARGET_NR_pause: 2875 ret = get_errno(pause()); 2876 break; 2877 #endif 2878 #ifdef TARGET_NR_utime 2879 case TARGET_NR_utime: 2880 { 2881 struct utimbuf tbuf, *host_tbuf; 2882 struct target_utimbuf *target_tbuf; 2883 if (arg2) { 2884 lock_user_struct(target_tbuf, arg2, 1); 2885 tbuf.actime = tswapl(target_tbuf->actime); 2886 tbuf.modtime = tswapl(target_tbuf->modtime); 2887 unlock_user_struct(target_tbuf, arg2, 0); 2888 host_tbuf = &tbuf; 2889 } else { 2890 host_tbuf = NULL; 2891 } 2892 p = lock_user_string(arg1); 2893 ret = get_errno(utime(p, host_tbuf)); 2894 unlock_user(p, arg1, 0); 2895 } 2896 break; 2897 #endif 2898 case TARGET_NR_utimes: 2899 { 2900 struct timeval *tvp, tv[2]; 2901 if (arg2) { 2902 target_to_host_timeval(&tv[0], arg2); 2903 target_to_host_timeval(&tv[1], 2904 arg2 + sizeof (struct target_timeval)); 2905 tvp = tv; 2906 } else { 2907 tvp = NULL; 2908 } 2909 p = lock_user_string(arg1); 2910 ret = get_errno(utimes(p, tvp)); 2911 unlock_user(p, arg1, 0); 2912 } 2913 break; 2914 #ifdef TARGET_NR_stty 2915 case TARGET_NR_stty: 2916 goto unimplemented; 2917 #endif 2918 #ifdef TARGET_NR_gtty 2919 case TARGET_NR_gtty: 2920 goto unimplemented; 2921 #endif 2922 case TARGET_NR_access: 2923 p = lock_user_string(arg1); 2924 ret = get_errno(access(p, arg2)); 2925 unlock_user(p, arg1, 0); 2926 break; 2927 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 2928 case TARGET_NR_faccessat: 2929 if (!arg2) { 2930 ret = -TARGET_EFAULT; 2931 goto fail; 2932 } 2933 p = lock_user_string(arg2); 2934 if (!access_ok(VERIFY_READ, p, 1)) 2935 /* Don't "goto fail" so that cleanup can happen. */ 2936 ret = -TARGET_EFAULT; 2937 else 2938 ret = get_errno(sys_faccessat(arg1, p, arg3, arg4)); 2939 if (p) 2940 unlock_user(p, arg2, 0); 2941 break; 2942 #endif 2943 #ifdef TARGET_NR_nice /* not on alpha */ 2944 case TARGET_NR_nice: 2945 ret = get_errno(nice(arg1)); 2946 break; 2947 #endif 2948 #ifdef TARGET_NR_ftime 2949 case TARGET_NR_ftime: 2950 goto unimplemented; 2951 #endif 2952 case TARGET_NR_sync: 2953 sync(); 2954 ret = 0; 2955 break; 2956 case TARGET_NR_kill: 2957 ret = get_errno(kill(arg1, arg2)); 2958 break; 2959 case TARGET_NR_rename: 2960 { 2961 void *p2; 2962 p = lock_user_string(arg1); 2963 p2 = lock_user_string(arg2); 2964 ret = get_errno(rename(p, p2)); 2965 unlock_user(p2, arg2, 0); 2966 unlock_user(p, arg1, 0); 2967 } 2968 break; 2969 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 2970 case TARGET_NR_renameat: 2971 if (!arg2 || !arg4) { 2972 ret = -TARGET_EFAULT; 2973 goto fail; 2974 } 2975 { 2976 void *p2 = NULL; 2977 p = lock_user_string(arg2); 2978 p2 = lock_user_string(arg4); 2979 if (!access_ok(VERIFY_READ, p, 1) 2980 || !access_ok(VERIFY_READ, p2, 1)) 2981 /* Don't "goto fail" so that cleanup can happen. */ 2982 ret = -TARGET_EFAULT; 2983 else 2984 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 2985 if (p2) 2986 unlock_user(p2, arg4, 0); 2987 if (p) 2988 unlock_user(p, arg2, 0); 2989 } 2990 break; 2991 #endif 2992 case TARGET_NR_mkdir: 2993 p = lock_user_string(arg1); 2994 ret = get_errno(mkdir(p, arg2)); 2995 unlock_user(p, arg1, 0); 2996 break; 2997 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 2998 case TARGET_NR_mkdirat: 2999 if (!arg2) { 3000 ret = -TARGET_EFAULT; 3001 goto fail; 3002 } 3003 p = lock_user_string(arg2); 3004 if (!access_ok(VERIFY_READ, p, 1)) 3005 /* Don't "goto fail" so that cleanup can happen. */ 3006 ret = -TARGET_EFAULT; 3007 else 3008 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 3009 if (p) 3010 unlock_user(p, arg2, 0); 3011 break; 3012 #endif 3013 case TARGET_NR_rmdir: 3014 p = lock_user_string(arg1); 3015 ret = get_errno(rmdir(p)); 3016 unlock_user(p, arg1, 0); 3017 break; 3018 case TARGET_NR_dup: 3019 ret = get_errno(dup(arg1)); 3020 break; 3021 case TARGET_NR_pipe: 3022 { 3023 int host_pipe[2]; 3024 ret = get_errno(pipe(host_pipe)); 3025 if (!is_error(ret)) { 3026 #if defined(TARGET_MIPS) 3027 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 3028 env->gpr[3][env->current_tc] = host_pipe[1]; 3029 ret = host_pipe[0]; 3030 #else 3031 tput32(arg1, host_pipe[0]); 3032 tput32(arg1 + 4, host_pipe[1]); 3033 #endif 3034 } 3035 } 3036 break; 3037 case TARGET_NR_times: 3038 { 3039 struct target_tms *tmsp; 3040 struct tms tms; 3041 ret = get_errno(times(&tms)); 3042 if (arg1) { 3043 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 3044 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 3045 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 3046 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 3047 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 3048 } 3049 if (!is_error(ret)) 3050 ret = host_to_target_clock_t(ret); 3051 } 3052 break; 3053 #ifdef TARGET_NR_prof 3054 case TARGET_NR_prof: 3055 goto unimplemented; 3056 #endif 3057 #ifdef TARGET_NR_signal 3058 case TARGET_NR_signal: 3059 goto unimplemented; 3060 #endif 3061 case TARGET_NR_acct: 3062 p = lock_user_string(arg1); 3063 ret = get_errno(acct(path(p))); 3064 unlock_user(p, arg1, 0); 3065 break; 3066 #ifdef TARGET_NR_umount2 /* not on alpha */ 3067 case TARGET_NR_umount2: 3068 p = lock_user_string(arg1); 3069 ret = get_errno(umount2(p, arg2)); 3070 unlock_user(p, arg1, 0); 3071 break; 3072 #endif 3073 #ifdef TARGET_NR_lock 3074 case TARGET_NR_lock: 3075 goto unimplemented; 3076 #endif 3077 case TARGET_NR_ioctl: 3078 ret = do_ioctl(arg1, arg2, arg3); 3079 break; 3080 case TARGET_NR_fcntl: 3081 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 3082 break; 3083 #ifdef TARGET_NR_mpx 3084 case TARGET_NR_mpx: 3085 goto unimplemented; 3086 #endif 3087 case TARGET_NR_setpgid: 3088 ret = get_errno(setpgid(arg1, arg2)); 3089 break; 3090 #ifdef TARGET_NR_ulimit 3091 case TARGET_NR_ulimit: 3092 goto unimplemented; 3093 #endif 3094 #ifdef TARGET_NR_oldolduname 3095 case TARGET_NR_oldolduname: 3096 goto unimplemented; 3097 #endif 3098 case TARGET_NR_umask: 3099 ret = get_errno(umask(arg1)); 3100 break; 3101 case TARGET_NR_chroot: 3102 p = lock_user_string(arg1); 3103 ret = get_errno(chroot(p)); 3104 unlock_user(p, arg1, 0); 3105 break; 3106 case TARGET_NR_ustat: 3107 goto unimplemented; 3108 case TARGET_NR_dup2: 3109 ret = get_errno(dup2(arg1, arg2)); 3110 break; 3111 #ifdef TARGET_NR_getppid /* not on alpha */ 3112 case TARGET_NR_getppid: 3113 ret = get_errno(getppid()); 3114 break; 3115 #endif 3116 case TARGET_NR_getpgrp: 3117 ret = get_errno(getpgrp()); 3118 break; 3119 case TARGET_NR_setsid: 3120 ret = get_errno(setsid()); 3121 break; 3122 #ifdef TARGET_NR_sigaction 3123 case TARGET_NR_sigaction: 3124 { 3125 #if !defined(TARGET_MIPS) 3126 struct target_old_sigaction *old_act; 3127 struct target_sigaction act, oact, *pact; 3128 if (arg2) { 3129 lock_user_struct(old_act, arg2, 1); 3130 act._sa_handler = old_act->_sa_handler; 3131 target_siginitset(&act.sa_mask, old_act->sa_mask); 3132 act.sa_flags = old_act->sa_flags; 3133 act.sa_restorer = old_act->sa_restorer; 3134 unlock_user_struct(old_act, arg2, 0); 3135 pact = &act; 3136 } else { 3137 pact = NULL; 3138 } 3139 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3140 if (!is_error(ret) && arg3) { 3141 lock_user_struct(old_act, arg3, 0); 3142 old_act->_sa_handler = oact._sa_handler; 3143 old_act->sa_mask = oact.sa_mask.sig[0]; 3144 old_act->sa_flags = oact.sa_flags; 3145 old_act->sa_restorer = oact.sa_restorer; 3146 unlock_user_struct(old_act, arg3, 1); 3147 } 3148 #else 3149 struct target_sigaction act, oact, *pact, *old_act; 3150 3151 if (arg2) { 3152 lock_user_struct(old_act, arg2, 1); 3153 act._sa_handler = old_act->_sa_handler; 3154 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 3155 act.sa_flags = old_act->sa_flags; 3156 unlock_user_struct(old_act, arg2, 0); 3157 pact = &act; 3158 } else { 3159 pact = NULL; 3160 } 3161 3162 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3163 3164 if (!is_error(ret) && arg3) { 3165 lock_user_struct(old_act, arg3, 0); 3166 old_act->_sa_handler = oact._sa_handler; 3167 old_act->sa_flags = oact.sa_flags; 3168 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 3169 old_act->sa_mask.sig[1] = 0; 3170 old_act->sa_mask.sig[2] = 0; 3171 old_act->sa_mask.sig[3] = 0; 3172 unlock_user_struct(old_act, arg3, 1); 3173 } 3174 #endif 3175 } 3176 break; 3177 #endif 3178 case TARGET_NR_rt_sigaction: 3179 { 3180 struct target_sigaction *act; 3181 struct target_sigaction *oact; 3182 3183 if (arg2) 3184 lock_user_struct(act, arg2, 1); 3185 else 3186 act = NULL; 3187 if (arg3) 3188 lock_user_struct(oact, arg3, 0); 3189 else 3190 oact = NULL; 3191 ret = get_errno(do_sigaction(arg1, act, oact)); 3192 if (arg2) 3193 unlock_user_struct(act, arg2, 0); 3194 if (arg3) 3195 unlock_user_struct(oact, arg3, 1); 3196 } 3197 break; 3198 #ifdef TARGET_NR_sgetmask /* not on alpha */ 3199 case TARGET_NR_sgetmask: 3200 { 3201 sigset_t cur_set; 3202 abi_ulong target_set; 3203 sigprocmask(0, NULL, &cur_set); 3204 host_to_target_old_sigset(&target_set, &cur_set); 3205 ret = target_set; 3206 } 3207 break; 3208 #endif 3209 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3210 case TARGET_NR_ssetmask: 3211 { 3212 sigset_t set, oset, cur_set; 3213 abi_ulong target_set = arg1; 3214 sigprocmask(0, NULL, &cur_set); 3215 target_to_host_old_sigset(&set, &target_set); 3216 sigorset(&set, &set, &cur_set); 3217 sigprocmask(SIG_SETMASK, &set, &oset); 3218 host_to_target_old_sigset(&target_set, &oset); 3219 ret = target_set; 3220 } 3221 break; 3222 #endif 3223 #ifdef TARGET_NR_sigprocmask 3224 case TARGET_NR_sigprocmask: 3225 { 3226 int how = arg1; 3227 sigset_t set, oldset, *set_ptr; 3228 3229 if (arg2) { 3230 switch(how) { 3231 case TARGET_SIG_BLOCK: 3232 how = SIG_BLOCK; 3233 break; 3234 case TARGET_SIG_UNBLOCK: 3235 how = SIG_UNBLOCK; 3236 break; 3237 case TARGET_SIG_SETMASK: 3238 how = SIG_SETMASK; 3239 break; 3240 default: 3241 ret = -TARGET_EINVAL; 3242 goto fail; 3243 } 3244 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3245 target_to_host_old_sigset(&set, p); 3246 unlock_user(p, arg2, 0); 3247 set_ptr = &set; 3248 } else { 3249 how = 0; 3250 set_ptr = NULL; 3251 } 3252 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3253 if (!is_error(ret) && arg3) { 3254 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3255 host_to_target_old_sigset(p, &oldset); 3256 unlock_user(p, arg3, sizeof(target_sigset_t)); 3257 } 3258 } 3259 break; 3260 #endif 3261 case TARGET_NR_rt_sigprocmask: 3262 { 3263 int how = arg1; 3264 sigset_t set, oldset, *set_ptr; 3265 3266 if (arg2) { 3267 switch(how) { 3268 case TARGET_SIG_BLOCK: 3269 how = SIG_BLOCK; 3270 break; 3271 case TARGET_SIG_UNBLOCK: 3272 how = SIG_UNBLOCK; 3273 break; 3274 case TARGET_SIG_SETMASK: 3275 how = SIG_SETMASK; 3276 break; 3277 default: 3278 ret = -TARGET_EINVAL; 3279 goto fail; 3280 } 3281 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3282 target_to_host_sigset(&set, p); 3283 unlock_user(p, arg2, 0); 3284 set_ptr = &set; 3285 } else { 3286 how = 0; 3287 set_ptr = NULL; 3288 } 3289 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3290 if (!is_error(ret) && arg3) { 3291 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3292 host_to_target_sigset(p, &oldset); 3293 unlock_user(p, arg3, sizeof(target_sigset_t)); 3294 } 3295 } 3296 break; 3297 #ifdef TARGET_NR_sigpending 3298 case TARGET_NR_sigpending: 3299 { 3300 sigset_t set; 3301 ret = get_errno(sigpending(&set)); 3302 if (!is_error(ret)) { 3303 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3304 host_to_target_old_sigset(p, &set); 3305 unlock_user(p, arg1, sizeof(target_sigset_t)); 3306 } 3307 } 3308 break; 3309 #endif 3310 case TARGET_NR_rt_sigpending: 3311 { 3312 sigset_t set; 3313 ret = get_errno(sigpending(&set)); 3314 if (!is_error(ret)) { 3315 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3316 host_to_target_sigset(p, &set); 3317 unlock_user(p, arg1, sizeof(target_sigset_t)); 3318 } 3319 } 3320 break; 3321 #ifdef TARGET_NR_sigsuspend 3322 case TARGET_NR_sigsuspend: 3323 { 3324 sigset_t set; 3325 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3326 target_to_host_old_sigset(&set, p); 3327 unlock_user(p, arg1, 0); 3328 ret = get_errno(sigsuspend(&set)); 3329 } 3330 break; 3331 #endif 3332 case TARGET_NR_rt_sigsuspend: 3333 { 3334 sigset_t set; 3335 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3336 target_to_host_sigset(&set, p); 3337 unlock_user(p, arg1, 0); 3338 ret = get_errno(sigsuspend(&set)); 3339 } 3340 break; 3341 case TARGET_NR_rt_sigtimedwait: 3342 { 3343 sigset_t set; 3344 struct timespec uts, *puts; 3345 siginfo_t uinfo; 3346 3347 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3348 target_to_host_sigset(&set, p); 3349 unlock_user(p, arg1, 0); 3350 if (arg3) { 3351 puts = &uts; 3352 target_to_host_timespec(puts, arg3); 3353 } else { 3354 puts = NULL; 3355 } 3356 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3357 if (!is_error(ret) && arg2) { 3358 p = lock_user(arg2, sizeof(target_sigset_t), 0); 3359 host_to_target_siginfo(p, &uinfo); 3360 unlock_user(p, arg2, sizeof(target_sigset_t)); 3361 } 3362 } 3363 break; 3364 case TARGET_NR_rt_sigqueueinfo: 3365 { 3366 siginfo_t uinfo; 3367 p = lock_user(arg3, sizeof(target_sigset_t), 1); 3368 target_to_host_siginfo(&uinfo, p); 3369 unlock_user(p, arg1, 0); 3370 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3371 } 3372 break; 3373 #ifdef TARGET_NR_sigreturn 3374 case TARGET_NR_sigreturn: 3375 /* NOTE: ret is eax, so not transcoding must be done */ 3376 ret = do_sigreturn(cpu_env); 3377 break; 3378 #endif 3379 case TARGET_NR_rt_sigreturn: 3380 /* NOTE: ret is eax, so not transcoding must be done */ 3381 ret = do_rt_sigreturn(cpu_env); 3382 break; 3383 case TARGET_NR_sethostname: 3384 p = lock_user_string(arg1); 3385 ret = get_errno(sethostname(p, arg2)); 3386 unlock_user(p, arg1, 0); 3387 break; 3388 case TARGET_NR_setrlimit: 3389 { 3390 /* XXX: convert resource ? */ 3391 int resource = arg1; 3392 struct target_rlimit *target_rlim; 3393 struct rlimit rlim; 3394 lock_user_struct(target_rlim, arg2, 1); 3395 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3396 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3397 unlock_user_struct(target_rlim, arg2, 0); 3398 ret = get_errno(setrlimit(resource, &rlim)); 3399 } 3400 break; 3401 case TARGET_NR_getrlimit: 3402 { 3403 /* XXX: convert resource ? */ 3404 int resource = arg1; 3405 struct target_rlimit *target_rlim; 3406 struct rlimit rlim; 3407 3408 ret = get_errno(getrlimit(resource, &rlim)); 3409 if (!is_error(ret)) { 3410 lock_user_struct(target_rlim, arg2, 0); 3411 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3412 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3413 unlock_user_struct(target_rlim, arg2, 1); 3414 } 3415 } 3416 break; 3417 case TARGET_NR_getrusage: 3418 { 3419 struct rusage rusage; 3420 ret = get_errno(getrusage(arg1, &rusage)); 3421 if (!is_error(ret)) { 3422 host_to_target_rusage(arg2, &rusage); 3423 } 3424 } 3425 break; 3426 case TARGET_NR_gettimeofday: 3427 { 3428 struct timeval tv; 3429 ret = get_errno(gettimeofday(&tv, NULL)); 3430 if (!is_error(ret)) { 3431 host_to_target_timeval(arg1, &tv); 3432 } 3433 } 3434 break; 3435 case TARGET_NR_settimeofday: 3436 { 3437 struct timeval tv; 3438 target_to_host_timeval(&tv, arg1); 3439 ret = get_errno(settimeofday(&tv, NULL)); 3440 } 3441 break; 3442 #ifdef TARGET_NR_select 3443 case TARGET_NR_select: 3444 { 3445 struct target_sel_arg_struct *sel; 3446 abi_ulong inp, outp, exp, tvp; 3447 long nsel; 3448 3449 lock_user_struct(sel, arg1, 1); 3450 nsel = tswapl(sel->n); 3451 inp = tswapl(sel->inp); 3452 outp = tswapl(sel->outp); 3453 exp = tswapl(sel->exp); 3454 tvp = tswapl(sel->tvp); 3455 unlock_user_struct(sel, arg1, 0); 3456 ret = do_select(nsel, inp, outp, exp, tvp); 3457 } 3458 break; 3459 #endif 3460 case TARGET_NR_symlink: 3461 { 3462 void *p2; 3463 p = lock_user_string(arg1); 3464 p2 = lock_user_string(arg2); 3465 ret = get_errno(symlink(p, p2)); 3466 unlock_user(p2, arg2, 0); 3467 unlock_user(p, arg1, 0); 3468 } 3469 break; 3470 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 3471 case TARGET_NR_symlinkat: 3472 if (!arg1 || !arg3) { 3473 ret = -TARGET_EFAULT; 3474 goto fail; 3475 } 3476 { 3477 void *p2 = NULL; 3478 p = lock_user_string(arg1); 3479 p2 = lock_user_string(arg3); 3480 if (!access_ok(VERIFY_READ, p, 1) 3481 || !access_ok(VERIFY_READ, p2, 1)) 3482 /* Don't "goto fail" so that cleanup can happen. */ 3483 ret = -TARGET_EFAULT; 3484 else 3485 ret = get_errno(sys_symlinkat(p, arg2, p2)); 3486 if (p2) 3487 unlock_user(p2, arg3, 0); 3488 if (p) 3489 unlock_user(p, arg1, 0); 3490 } 3491 break; 3492 #endif 3493 #ifdef TARGET_NR_oldlstat 3494 case TARGET_NR_oldlstat: 3495 goto unimplemented; 3496 #endif 3497 case TARGET_NR_readlink: 3498 { 3499 void *p2; 3500 p = lock_user_string(arg1); 3501 p2 = lock_user(arg2, arg3, 0); 3502 ret = get_errno(readlink(path(p), p2, arg3)); 3503 unlock_user(p2, arg2, ret); 3504 unlock_user(p, arg1, 0); 3505 } 3506 break; 3507 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 3508 case TARGET_NR_readlinkat: 3509 if (!arg2 || !arg3) { 3510 ret = -TARGET_EFAULT; 3511 goto fail; 3512 } 3513 { 3514 void *p2 = NULL; 3515 p = lock_user_string(arg2); 3516 p2 = lock_user(arg3, arg4, 0); 3517 if (!access_ok(VERIFY_READ, p, 1) 3518 || !access_ok(VERIFY_READ, p2, 1)) 3519 /* Don't "goto fail" so that cleanup can happen. */ 3520 ret = -TARGET_EFAULT; 3521 else 3522 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 3523 if (p2) 3524 unlock_user(p2, arg3, ret); 3525 if (p) 3526 unlock_user(p, arg2, 0); 3527 } 3528 break; 3529 #endif 3530 #ifdef TARGET_NR_uselib 3531 case TARGET_NR_uselib: 3532 goto unimplemented; 3533 #endif 3534 #ifdef TARGET_NR_swapon 3535 case TARGET_NR_swapon: 3536 p = lock_user_string(arg1); 3537 ret = get_errno(swapon(p, arg2)); 3538 unlock_user(p, arg1, 0); 3539 break; 3540 #endif 3541 case TARGET_NR_reboot: 3542 goto unimplemented; 3543 #ifdef TARGET_NR_readdir 3544 case TARGET_NR_readdir: 3545 goto unimplemented; 3546 #endif 3547 #ifdef TARGET_NR_mmap 3548 case TARGET_NR_mmap: 3549 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) 3550 { 3551 abi_ulong *v; 3552 abi_ulong v1, v2, v3, v4, v5, v6; 3553 v = lock_user(arg1, 6 * sizeof(abi_ulong), 1); 3554 v1 = tswapl(v[0]); 3555 v2 = tswapl(v[1]); 3556 v3 = tswapl(v[2]); 3557 v4 = tswapl(v[3]); 3558 v5 = tswapl(v[4]); 3559 v6 = tswapl(v[5]); 3560 unlock_user(v, arg1, 0); 3561 ret = get_errno(target_mmap(v1, v2, v3, 3562 target_to_host_bitmask(v4, mmap_flags_tbl), 3563 v5, v6)); 3564 } 3565 #else 3566 ret = get_errno(target_mmap(arg1, arg2, arg3, 3567 target_to_host_bitmask(arg4, mmap_flags_tbl), 3568 arg5, 3569 arg6)); 3570 #endif 3571 break; 3572 #endif 3573 #ifdef TARGET_NR_mmap2 3574 case TARGET_NR_mmap2: 3575 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 3576 #define MMAP_SHIFT 12 3577 #else 3578 #define MMAP_SHIFT TARGET_PAGE_BITS 3579 #endif 3580 ret = get_errno(target_mmap(arg1, arg2, arg3, 3581 target_to_host_bitmask(arg4, mmap_flags_tbl), 3582 arg5, 3583 arg6 << MMAP_SHIFT)); 3584 break; 3585 #endif 3586 case TARGET_NR_munmap: 3587 ret = get_errno(target_munmap(arg1, arg2)); 3588 break; 3589 case TARGET_NR_mprotect: 3590 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 3591 break; 3592 #ifdef TARGET_NR_mremap 3593 case TARGET_NR_mremap: 3594 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 3595 break; 3596 #endif 3597 /* ??? msync/mlock/munlock are broken for softmmu. */ 3598 #ifdef TARGET_NR_msync 3599 case TARGET_NR_msync: 3600 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 3601 break; 3602 #endif 3603 #ifdef TARGET_NR_mlock 3604 case TARGET_NR_mlock: 3605 ret = get_errno(mlock(g2h(arg1), arg2)); 3606 break; 3607 #endif 3608 #ifdef TARGET_NR_munlock 3609 case TARGET_NR_munlock: 3610 ret = get_errno(munlock(g2h(arg1), arg2)); 3611 break; 3612 #endif 3613 #ifdef TARGET_NR_mlockall 3614 case TARGET_NR_mlockall: 3615 ret = get_errno(mlockall(arg1)); 3616 break; 3617 #endif 3618 #ifdef TARGET_NR_munlockall 3619 case TARGET_NR_munlockall: 3620 ret = get_errno(munlockall()); 3621 break; 3622 #endif 3623 case TARGET_NR_truncate: 3624 p = lock_user_string(arg1); 3625 ret = get_errno(truncate(p, arg2)); 3626 unlock_user(p, arg1, 0); 3627 break; 3628 case TARGET_NR_ftruncate: 3629 ret = get_errno(ftruncate(arg1, arg2)); 3630 break; 3631 case TARGET_NR_fchmod: 3632 ret = get_errno(fchmod(arg1, arg2)); 3633 break; 3634 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 3635 case TARGET_NR_fchmodat: 3636 if (!arg2) { 3637 ret = -TARGET_EFAULT; 3638 goto fail; 3639 } 3640 p = lock_user_string(arg2); 3641 if (!access_ok(VERIFY_READ, p, 1)) 3642 /* Don't "goto fail" so that cleanup can happen. */ 3643 ret = -TARGET_EFAULT; 3644 else 3645 ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4)); 3646 if (p) 3647 unlock_user(p, arg2, 0); 3648 break; 3649 #endif 3650 case TARGET_NR_getpriority: 3651 /* libc does special remapping of the return value of 3652 * sys_getpriority() so it's just easiest to call 3653 * sys_getpriority() directly rather than through libc. */ 3654 ret = sys_getpriority(arg1, arg2); 3655 break; 3656 case TARGET_NR_setpriority: 3657 ret = get_errno(setpriority(arg1, arg2, arg3)); 3658 break; 3659 #ifdef TARGET_NR_profil 3660 case TARGET_NR_profil: 3661 goto unimplemented; 3662 #endif 3663 case TARGET_NR_statfs: 3664 p = lock_user_string(arg1); 3665 ret = get_errno(statfs(path(p), &stfs)); 3666 unlock_user(p, arg1, 0); 3667 convert_statfs: 3668 if (!is_error(ret)) { 3669 struct target_statfs *target_stfs; 3670 3671 lock_user_struct(target_stfs, arg2, 0); 3672 /* ??? put_user is probably wrong. */ 3673 put_user(stfs.f_type, &target_stfs->f_type); 3674 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3675 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3676 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3677 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3678 put_user(stfs.f_files, &target_stfs->f_files); 3679 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3680 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3681 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3682 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3683 unlock_user_struct(target_stfs, arg2, 1); 3684 } 3685 break; 3686 case TARGET_NR_fstatfs: 3687 ret = get_errno(fstatfs(arg1, &stfs)); 3688 goto convert_statfs; 3689 #ifdef TARGET_NR_statfs64 3690 case TARGET_NR_statfs64: 3691 p = lock_user_string(arg1); 3692 ret = get_errno(statfs(path(p), &stfs)); 3693 unlock_user(p, arg1, 0); 3694 convert_statfs64: 3695 if (!is_error(ret)) { 3696 struct target_statfs64 *target_stfs; 3697 3698 lock_user_struct(target_stfs, arg3, 0); 3699 /* ??? put_user is probably wrong. */ 3700 put_user(stfs.f_type, &target_stfs->f_type); 3701 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3702 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3703 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3704 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3705 put_user(stfs.f_files, &target_stfs->f_files); 3706 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3707 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3708 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3709 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3710 unlock_user_struct(target_stfs, arg3, 0); 3711 } 3712 break; 3713 case TARGET_NR_fstatfs64: 3714 ret = get_errno(fstatfs(arg1, &stfs)); 3715 goto convert_statfs64; 3716 #endif 3717 #ifdef TARGET_NR_ioperm 3718 case TARGET_NR_ioperm: 3719 goto unimplemented; 3720 #endif 3721 #ifdef TARGET_NR_socketcall 3722 case TARGET_NR_socketcall: 3723 ret = do_socketcall(arg1, arg2); 3724 break; 3725 #endif 3726 #ifdef TARGET_NR_accept 3727 case TARGET_NR_accept: 3728 ret = do_accept(arg1, arg2, arg3); 3729 break; 3730 #endif 3731 #ifdef TARGET_NR_bind 3732 case TARGET_NR_bind: 3733 ret = do_bind(arg1, arg2, arg3); 3734 break; 3735 #endif 3736 #ifdef TARGET_NR_connect 3737 case TARGET_NR_connect: 3738 ret = do_connect(arg1, arg2, arg3); 3739 break; 3740 #endif 3741 #ifdef TARGET_NR_getpeername 3742 case TARGET_NR_getpeername: 3743 ret = do_getpeername(arg1, arg2, arg3); 3744 break; 3745 #endif 3746 #ifdef TARGET_NR_getsockname 3747 case TARGET_NR_getsockname: 3748 ret = do_getsockname(arg1, arg2, arg3); 3749 break; 3750 #endif 3751 #ifdef TARGET_NR_getsockopt 3752 case TARGET_NR_getsockopt: 3753 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 3754 break; 3755 #endif 3756 #ifdef TARGET_NR_listen 3757 case TARGET_NR_listen: 3758 ret = get_errno(listen(arg1, arg2)); 3759 break; 3760 #endif 3761 #ifdef TARGET_NR_recv 3762 case TARGET_NR_recv: 3763 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3764 break; 3765 #endif 3766 #ifdef TARGET_NR_recvfrom 3767 case TARGET_NR_recvfrom: 3768 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3769 break; 3770 #endif 3771 #ifdef TARGET_NR_recvmsg 3772 case TARGET_NR_recvmsg: 3773 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3774 break; 3775 #endif 3776 #ifdef TARGET_NR_send 3777 case TARGET_NR_send: 3778 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3779 break; 3780 #endif 3781 #ifdef TARGET_NR_sendmsg 3782 case TARGET_NR_sendmsg: 3783 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3784 break; 3785 #endif 3786 #ifdef TARGET_NR_sendto 3787 case TARGET_NR_sendto: 3788 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3789 break; 3790 #endif 3791 #ifdef TARGET_NR_shutdown 3792 case TARGET_NR_shutdown: 3793 ret = get_errno(shutdown(arg1, arg2)); 3794 break; 3795 #endif 3796 #ifdef TARGET_NR_socket 3797 case TARGET_NR_socket: 3798 ret = do_socket(arg1, arg2, arg3); 3799 break; 3800 #endif 3801 #ifdef TARGET_NR_socketpair 3802 case TARGET_NR_socketpair: 3803 ret = do_socketpair(arg1, arg2, arg3, arg4); 3804 break; 3805 #endif 3806 #ifdef TARGET_NR_setsockopt 3807 case TARGET_NR_setsockopt: 3808 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3809 break; 3810 #endif 3811 3812 case TARGET_NR_syslog: 3813 p = lock_user_string(arg2); 3814 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3815 unlock_user(p, arg2, 0); 3816 break; 3817 3818 case TARGET_NR_setitimer: 3819 { 3820 struct itimerval value, ovalue, *pvalue; 3821 3822 if (arg2) { 3823 pvalue = &value; 3824 target_to_host_timeval(&pvalue->it_interval, 3825 arg2); 3826 target_to_host_timeval(&pvalue->it_value, 3827 arg2 + sizeof(struct target_timeval)); 3828 } else { 3829 pvalue = NULL; 3830 } 3831 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3832 if (!is_error(ret) && arg3) { 3833 host_to_target_timeval(arg3, 3834 &ovalue.it_interval); 3835 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3836 &ovalue.it_value); 3837 } 3838 } 3839 break; 3840 case TARGET_NR_getitimer: 3841 { 3842 struct itimerval value; 3843 3844 ret = get_errno(getitimer(arg1, &value)); 3845 if (!is_error(ret) && arg2) { 3846 host_to_target_timeval(arg2, 3847 &value.it_interval); 3848 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3849 &value.it_value); 3850 } 3851 } 3852 break; 3853 case TARGET_NR_stat: 3854 p = lock_user_string(arg1); 3855 ret = get_errno(stat(path(p), &st)); 3856 unlock_user(p, arg1, 0); 3857 goto do_stat; 3858 case TARGET_NR_lstat: 3859 p = lock_user_string(arg1); 3860 ret = get_errno(lstat(path(p), &st)); 3861 unlock_user(p, arg1, 0); 3862 goto do_stat; 3863 case TARGET_NR_fstat: 3864 { 3865 ret = get_errno(fstat(arg1, &st)); 3866 do_stat: 3867 if (!is_error(ret)) { 3868 struct target_stat *target_st; 3869 3870 lock_user_struct(target_st, arg2, 0); 3871 #if defined(TARGET_MIPS) || (defined(TARGET_SPARC64) && !defined(TARGET_ABI32)) 3872 target_st->st_dev = tswap32(st.st_dev); 3873 #else 3874 target_st->st_dev = tswap16(st.st_dev); 3875 #endif 3876 target_st->st_ino = tswapl(st.st_ino); 3877 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3878 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3879 target_st->st_uid = tswap32(st.st_uid); 3880 target_st->st_gid = tswap32(st.st_gid); 3881 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 3882 target_st->st_mode = tswap32(st.st_mode); 3883 target_st->st_uid = tswap32(st.st_uid); 3884 target_st->st_gid = tswap32(st.st_gid); 3885 #else 3886 target_st->st_mode = tswap16(st.st_mode); 3887 target_st->st_uid = tswap16(st.st_uid); 3888 target_st->st_gid = tswap16(st.st_gid); 3889 #endif 3890 #if defined(TARGET_MIPS) 3891 /* If this is the same on PPC, then just merge w/ the above ifdef */ 3892 target_st->st_nlink = tswapl(st.st_nlink); 3893 target_st->st_rdev = tswapl(st.st_rdev); 3894 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 3895 target_st->st_nlink = tswap32(st.st_nlink); 3896 target_st->st_rdev = tswap32(st.st_rdev); 3897 #else 3898 target_st->st_nlink = tswap16(st.st_nlink); 3899 target_st->st_rdev = tswap16(st.st_rdev); 3900 #endif 3901 target_st->st_size = tswapl(st.st_size); 3902 target_st->st_blksize = tswapl(st.st_blksize); 3903 target_st->st_blocks = tswapl(st.st_blocks); 3904 target_st->target_st_atime = tswapl(st.st_atime); 3905 target_st->target_st_mtime = tswapl(st.st_mtime); 3906 target_st->target_st_ctime = tswapl(st.st_ctime); 3907 unlock_user_struct(target_st, arg2, 1); 3908 } 3909 } 3910 break; 3911 #ifdef TARGET_NR_olduname 3912 case TARGET_NR_olduname: 3913 goto unimplemented; 3914 #endif 3915 #ifdef TARGET_NR_iopl 3916 case TARGET_NR_iopl: 3917 goto unimplemented; 3918 #endif 3919 case TARGET_NR_vhangup: 3920 ret = get_errno(vhangup()); 3921 break; 3922 #ifdef TARGET_NR_idle 3923 case TARGET_NR_idle: 3924 goto unimplemented; 3925 #endif 3926 #ifdef TARGET_NR_syscall 3927 case TARGET_NR_syscall: 3928 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3929 break; 3930 #endif 3931 case TARGET_NR_wait4: 3932 { 3933 int status; 3934 abi_long status_ptr = arg2; 3935 struct rusage rusage, *rusage_ptr; 3936 abi_ulong target_rusage = arg4; 3937 if (target_rusage) 3938 rusage_ptr = &rusage; 3939 else 3940 rusage_ptr = NULL; 3941 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3942 if (!is_error(ret)) { 3943 if (status_ptr) 3944 tputl(status_ptr, status); 3945 if (target_rusage) { 3946 host_to_target_rusage(target_rusage, &rusage); 3947 } 3948 } 3949 } 3950 break; 3951 #ifdef TARGET_NR_swapoff 3952 case TARGET_NR_swapoff: 3953 p = lock_user_string(arg1); 3954 ret = get_errno(swapoff(p)); 3955 unlock_user(p, arg1, 0); 3956 break; 3957 #endif 3958 case TARGET_NR_sysinfo: 3959 { 3960 struct target_sysinfo *target_value; 3961 struct sysinfo value; 3962 ret = get_errno(sysinfo(&value)); 3963 if (!is_error(ret) && arg1) 3964 { 3965 /* ??? __put_user is probably wrong. */ 3966 lock_user_struct(target_value, arg1, 0); 3967 __put_user(value.uptime, &target_value->uptime); 3968 __put_user(value.loads[0], &target_value->loads[0]); 3969 __put_user(value.loads[1], &target_value->loads[1]); 3970 __put_user(value.loads[2], &target_value->loads[2]); 3971 __put_user(value.totalram, &target_value->totalram); 3972 __put_user(value.freeram, &target_value->freeram); 3973 __put_user(value.sharedram, &target_value->sharedram); 3974 __put_user(value.bufferram, &target_value->bufferram); 3975 __put_user(value.totalswap, &target_value->totalswap); 3976 __put_user(value.freeswap, &target_value->freeswap); 3977 __put_user(value.procs, &target_value->procs); 3978 __put_user(value.totalhigh, &target_value->totalhigh); 3979 __put_user(value.freehigh, &target_value->freehigh); 3980 __put_user(value.mem_unit, &target_value->mem_unit); 3981 unlock_user_struct(target_value, arg1, 1); 3982 } 3983 } 3984 break; 3985 #ifdef TARGET_NR_ipc 3986 case TARGET_NR_ipc: 3987 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3988 break; 3989 #endif 3990 case TARGET_NR_fsync: 3991 ret = get_errno(fsync(arg1)); 3992 break; 3993 case TARGET_NR_clone: 3994 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3995 break; 3996 #ifdef __NR_exit_group 3997 /* new thread calls */ 3998 case TARGET_NR_exit_group: 3999 gdb_exit(cpu_env, arg1); 4000 ret = get_errno(exit_group(arg1)); 4001 break; 4002 #endif 4003 case TARGET_NR_setdomainname: 4004 p = lock_user_string(arg1); 4005 ret = get_errno(setdomainname(p, arg2)); 4006 unlock_user(p, arg1, 0); 4007 break; 4008 case TARGET_NR_uname: 4009 /* no need to transcode because we use the linux syscall */ 4010 { 4011 struct new_utsname * buf; 4012 4013 lock_user_struct(buf, arg1, 0); 4014 ret = get_errno(sys_uname(buf)); 4015 if (!is_error(ret)) { 4016 /* Overrite the native machine name with whatever is being 4017 emulated. */ 4018 strcpy (buf->machine, UNAME_MACHINE); 4019 /* Allow the user to override the reported release. */ 4020 if (qemu_uname_release && *qemu_uname_release) 4021 strcpy (buf->release, qemu_uname_release); 4022 } 4023 unlock_user_struct(buf, arg1, 1); 4024 } 4025 break; 4026 #ifdef TARGET_I386 4027 case TARGET_NR_modify_ldt: 4028 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 4029 break; 4030 #if !defined(TARGET_X86_64) 4031 case TARGET_NR_vm86old: 4032 goto unimplemented; 4033 case TARGET_NR_vm86: 4034 ret = do_vm86(cpu_env, arg1, arg2); 4035 break; 4036 #endif 4037 #endif 4038 case TARGET_NR_adjtimex: 4039 goto unimplemented; 4040 #ifdef TARGET_NR_create_module 4041 case TARGET_NR_create_module: 4042 #endif 4043 case TARGET_NR_init_module: 4044 case TARGET_NR_delete_module: 4045 #ifdef TARGET_NR_get_kernel_syms 4046 case TARGET_NR_get_kernel_syms: 4047 #endif 4048 goto unimplemented; 4049 case TARGET_NR_quotactl: 4050 goto unimplemented; 4051 case TARGET_NR_getpgid: 4052 ret = get_errno(getpgid(arg1)); 4053 break; 4054 case TARGET_NR_fchdir: 4055 ret = get_errno(fchdir(arg1)); 4056 break; 4057 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 4058 case TARGET_NR_bdflush: 4059 goto unimplemented; 4060 #endif 4061 #ifdef TARGET_NR_sysfs 4062 case TARGET_NR_sysfs: 4063 goto unimplemented; 4064 #endif 4065 case TARGET_NR_personality: 4066 ret = get_errno(personality(arg1)); 4067 break; 4068 #ifdef TARGET_NR_afs_syscall 4069 case TARGET_NR_afs_syscall: 4070 goto unimplemented; 4071 #endif 4072 #ifdef TARGET_NR__llseek /* Not on alpha */ 4073 case TARGET_NR__llseek: 4074 { 4075 #if defined (__x86_64__) 4076 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 4077 tput64(arg4, ret); 4078 #else 4079 int64_t res; 4080 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 4081 tput64(arg4, res); 4082 #endif 4083 } 4084 break; 4085 #endif 4086 case TARGET_NR_getdents: 4087 #if TARGET_ABI_BITS != 32 4088 goto unimplemented; 4089 #warning not supported 4090 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 4091 { 4092 struct target_dirent *target_dirp; 4093 struct dirent *dirp; 4094 abi_long count = arg3; 4095 4096 dirp = malloc(count); 4097 if (!dirp) { 4098 ret = -TARGET_EFAULT; 4099 goto fail; 4100 } 4101 4102 ret = get_errno(sys_getdents(arg1, dirp, count)); 4103 if (!is_error(ret)) { 4104 struct dirent *de; 4105 struct target_dirent *tde; 4106 int len = ret; 4107 int reclen, treclen; 4108 int count1, tnamelen; 4109 4110 count1 = 0; 4111 de = dirp; 4112 target_dirp = lock_user(arg2, count, 0); 4113 tde = target_dirp; 4114 while (len > 0) { 4115 reclen = de->d_reclen; 4116 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 4117 tde->d_reclen = tswap16(treclen); 4118 tde->d_ino = tswapl(de->d_ino); 4119 tde->d_off = tswapl(de->d_off); 4120 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 4121 if (tnamelen > 256) 4122 tnamelen = 256; 4123 /* XXX: may not be correct */ 4124 strncpy(tde->d_name, de->d_name, tnamelen); 4125 de = (struct dirent *)((char *)de + reclen); 4126 len -= reclen; 4127 tde = (struct target_dirent *)((char *)tde + treclen); 4128 count1 += treclen; 4129 } 4130 ret = count1; 4131 } 4132 unlock_user(target_dirp, arg2, ret); 4133 free(dirp); 4134 } 4135 #else 4136 { 4137 struct dirent *dirp; 4138 abi_long count = arg3; 4139 4140 dirp = lock_user(arg2, count, 0); 4141 ret = get_errno(sys_getdents(arg1, dirp, count)); 4142 if (!is_error(ret)) { 4143 struct dirent *de; 4144 int len = ret; 4145 int reclen; 4146 de = dirp; 4147 while (len > 0) { 4148 reclen = de->d_reclen; 4149 if (reclen > len) 4150 break; 4151 de->d_reclen = tswap16(reclen); 4152 tswapls(&de->d_ino); 4153 tswapls(&de->d_off); 4154 de = (struct dirent *)((char *)de + reclen); 4155 len -= reclen; 4156 } 4157 } 4158 unlock_user(dirp, arg2, ret); 4159 } 4160 #endif 4161 break; 4162 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 4163 case TARGET_NR_getdents64: 4164 { 4165 struct dirent64 *dirp; 4166 abi_long count = arg3; 4167 dirp = lock_user(arg2, count, 0); 4168 ret = get_errno(sys_getdents64(arg1, dirp, count)); 4169 if (!is_error(ret)) { 4170 struct dirent64 *de; 4171 int len = ret; 4172 int reclen; 4173 de = dirp; 4174 while (len > 0) { 4175 reclen = de->d_reclen; 4176 if (reclen > len) 4177 break; 4178 de->d_reclen = tswap16(reclen); 4179 tswap64s(&de->d_ino); 4180 tswap64s(&de->d_off); 4181 de = (struct dirent64 *)((char *)de + reclen); 4182 len -= reclen; 4183 } 4184 } 4185 unlock_user(dirp, arg2, ret); 4186 } 4187 break; 4188 #endif /* TARGET_NR_getdents64 */ 4189 #ifdef TARGET_NR__newselect 4190 case TARGET_NR__newselect: 4191 ret = do_select(arg1, arg2, arg3, arg4, arg5); 4192 break; 4193 #endif 4194 #ifdef TARGET_NR_poll 4195 case TARGET_NR_poll: 4196 { 4197 struct target_pollfd *target_pfd; 4198 unsigned int nfds = arg2; 4199 int timeout = arg3; 4200 struct pollfd *pfd; 4201 unsigned int i; 4202 4203 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 4204 pfd = alloca(sizeof(struct pollfd) * nfds); 4205 for(i = 0; i < nfds; i++) { 4206 pfd[i].fd = tswap32(target_pfd[i].fd); 4207 pfd[i].events = tswap16(target_pfd[i].events); 4208 } 4209 ret = get_errno(poll(pfd, nfds, timeout)); 4210 if (!is_error(ret)) { 4211 for(i = 0; i < nfds; i++) { 4212 target_pfd[i].revents = tswap16(pfd[i].revents); 4213 } 4214 ret += nfds * (sizeof(struct target_pollfd) 4215 - sizeof(struct pollfd)); 4216 } 4217 unlock_user(target_pfd, arg1, ret); 4218 } 4219 break; 4220 #endif 4221 case TARGET_NR_flock: 4222 /* NOTE: the flock constant seems to be the same for every 4223 Linux platform */ 4224 ret = get_errno(flock(arg1, arg2)); 4225 break; 4226 case TARGET_NR_readv: 4227 { 4228 int count = arg3; 4229 struct iovec *vec; 4230 4231 vec = alloca(count * sizeof(struct iovec)); 4232 lock_iovec(vec, arg2, count, 0); 4233 ret = get_errno(readv(arg1, vec, count)); 4234 unlock_iovec(vec, arg2, count, 1); 4235 } 4236 break; 4237 case TARGET_NR_writev: 4238 { 4239 int count = arg3; 4240 struct iovec *vec; 4241 4242 vec = alloca(count * sizeof(struct iovec)); 4243 lock_iovec(vec, arg2, count, 1); 4244 ret = get_errno(writev(arg1, vec, count)); 4245 unlock_iovec(vec, arg2, count, 0); 4246 } 4247 break; 4248 case TARGET_NR_getsid: 4249 ret = get_errno(getsid(arg1)); 4250 break; 4251 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 4252 case TARGET_NR_fdatasync: 4253 ret = get_errno(fdatasync(arg1)); 4254 break; 4255 #endif 4256 case TARGET_NR__sysctl: 4257 /* We don't implement this, but ENOTDIR is always a safe 4258 return value. */ 4259 ret = -TARGET_ENOTDIR; 4260 break; 4261 case TARGET_NR_sched_setparam: 4262 { 4263 struct sched_param *target_schp; 4264 struct sched_param schp; 4265 4266 lock_user_struct(target_schp, arg2, 1); 4267 schp.sched_priority = tswap32(target_schp->sched_priority); 4268 unlock_user_struct(target_schp, arg2, 0); 4269 ret = get_errno(sched_setparam(arg1, &schp)); 4270 } 4271 break; 4272 case TARGET_NR_sched_getparam: 4273 { 4274 struct sched_param *target_schp; 4275 struct sched_param schp; 4276 ret = get_errno(sched_getparam(arg1, &schp)); 4277 if (!is_error(ret)) { 4278 lock_user_struct(target_schp, arg2, 0); 4279 target_schp->sched_priority = tswap32(schp.sched_priority); 4280 unlock_user_struct(target_schp, arg2, 1); 4281 } 4282 } 4283 break; 4284 case TARGET_NR_sched_setscheduler: 4285 { 4286 struct sched_param *target_schp; 4287 struct sched_param schp; 4288 lock_user_struct(target_schp, arg3, 1); 4289 schp.sched_priority = tswap32(target_schp->sched_priority); 4290 unlock_user_struct(target_schp, arg3, 0); 4291 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4292 } 4293 break; 4294 case TARGET_NR_sched_getscheduler: 4295 ret = get_errno(sched_getscheduler(arg1)); 4296 break; 4297 case TARGET_NR_sched_yield: 4298 ret = get_errno(sched_yield()); 4299 break; 4300 case TARGET_NR_sched_get_priority_max: 4301 ret = get_errno(sched_get_priority_max(arg1)); 4302 break; 4303 case TARGET_NR_sched_get_priority_min: 4304 ret = get_errno(sched_get_priority_min(arg1)); 4305 break; 4306 case TARGET_NR_sched_rr_get_interval: 4307 { 4308 struct timespec ts; 4309 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4310 if (!is_error(ret)) { 4311 host_to_target_timespec(arg2, &ts); 4312 } 4313 } 4314 break; 4315 case TARGET_NR_nanosleep: 4316 { 4317 struct timespec req, rem; 4318 target_to_host_timespec(&req, arg1); 4319 ret = get_errno(nanosleep(&req, &rem)); 4320 if (is_error(ret) && arg2) { 4321 host_to_target_timespec(arg2, &rem); 4322 } 4323 } 4324 break; 4325 #ifdef TARGET_NR_query_module 4326 case TARGET_NR_query_module: 4327 goto unimplemented; 4328 #endif 4329 #ifdef TARGET_NR_nfsservctl 4330 case TARGET_NR_nfsservctl: 4331 goto unimplemented; 4332 #endif 4333 case TARGET_NR_prctl: 4334 switch (arg1) 4335 { 4336 case PR_GET_PDEATHSIG: 4337 { 4338 int deathsig; 4339 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4340 if (!is_error(ret) && arg2) 4341 tput32(arg2, deathsig); 4342 } 4343 break; 4344 default: 4345 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4346 break; 4347 } 4348 break; 4349 #ifdef TARGET_NR_pread 4350 case TARGET_NR_pread: 4351 page_unprotect_range(arg2, arg3); 4352 p = lock_user(arg2, arg3, 0); 4353 ret = get_errno(pread(arg1, p, arg3, arg4)); 4354 unlock_user(p, arg2, ret); 4355 break; 4356 case TARGET_NR_pwrite: 4357 p = lock_user(arg2, arg3, 1); 4358 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4359 unlock_user(p, arg2, 0); 4360 break; 4361 #endif 4362 case TARGET_NR_getcwd: 4363 p = lock_user(arg1, arg2, 0); 4364 ret = get_errno(sys_getcwd1(p, arg2)); 4365 unlock_user(p, arg1, ret); 4366 break; 4367 case TARGET_NR_capget: 4368 goto unimplemented; 4369 case TARGET_NR_capset: 4370 goto unimplemented; 4371 case TARGET_NR_sigaltstack: 4372 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 4373 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) 4374 ret = do_sigaltstack((struct target_sigaltstack *)arg1, 4375 (struct target_sigaltstack *)arg2, 4376 get_sp_from_cpustate((CPUState *)cpu_env)); 4377 break; 4378 #else 4379 goto unimplemented; 4380 #endif 4381 case TARGET_NR_sendfile: 4382 goto unimplemented; 4383 #ifdef TARGET_NR_getpmsg 4384 case TARGET_NR_getpmsg: 4385 goto unimplemented; 4386 #endif 4387 #ifdef TARGET_NR_putpmsg 4388 case TARGET_NR_putpmsg: 4389 goto unimplemented; 4390 #endif 4391 #ifdef TARGET_NR_vfork 4392 case TARGET_NR_vfork: 4393 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4394 break; 4395 #endif 4396 #ifdef TARGET_NR_ugetrlimit 4397 case TARGET_NR_ugetrlimit: 4398 { 4399 struct rlimit rlim; 4400 ret = get_errno(getrlimit(arg1, &rlim)); 4401 if (!is_error(ret)) { 4402 struct target_rlimit *target_rlim; 4403 lock_user_struct(target_rlim, arg2, 0); 4404 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4405 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4406 unlock_user_struct(target_rlim, arg2, 1); 4407 } 4408 break; 4409 } 4410 #endif 4411 #ifdef TARGET_NR_truncate64 4412 case TARGET_NR_truncate64: 4413 p = lock_user_string(arg1); 4414 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4415 unlock_user(p, arg1, 0); 4416 break; 4417 #endif 4418 #ifdef TARGET_NR_ftruncate64 4419 case TARGET_NR_ftruncate64: 4420 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4421 break; 4422 #endif 4423 #ifdef TARGET_NR_stat64 4424 case TARGET_NR_stat64: 4425 p = lock_user_string(arg1); 4426 ret = get_errno(stat(path(p), &st)); 4427 unlock_user(p, arg1, 0); 4428 goto do_stat64; 4429 #endif 4430 #ifdef TARGET_NR_lstat64 4431 case TARGET_NR_lstat64: 4432 p = lock_user_string(arg1); 4433 ret = get_errno(lstat(path(p), &st)); 4434 unlock_user(p, arg1, 0); 4435 goto do_stat64; 4436 #endif 4437 #ifdef TARGET_NR_fstat64 4438 case TARGET_NR_fstat64: 4439 { 4440 ret = get_errno(fstat(arg1, &st)); 4441 do_stat64: 4442 if (!is_error(ret)) { 4443 #ifdef TARGET_ARM 4444 if (((CPUARMState *)cpu_env)->eabi) { 4445 struct target_eabi_stat64 *target_st; 4446 lock_user_struct(target_st, arg2, 1); 4447 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4448 /* put_user is probably wrong. */ 4449 put_user(st.st_dev, &target_st->st_dev); 4450 put_user(st.st_ino, &target_st->st_ino); 4451 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4452 put_user(st.st_ino, &target_st->__st_ino); 4453 #endif 4454 put_user(st.st_mode, &target_st->st_mode); 4455 put_user(st.st_nlink, &target_st->st_nlink); 4456 put_user(st.st_uid, &target_st->st_uid); 4457 put_user(st.st_gid, &target_st->st_gid); 4458 put_user(st.st_rdev, &target_st->st_rdev); 4459 /* XXX: better use of kernel struct */ 4460 put_user(st.st_size, &target_st->st_size); 4461 put_user(st.st_blksize, &target_st->st_blksize); 4462 put_user(st.st_blocks, &target_st->st_blocks); 4463 put_user(st.st_atime, &target_st->target_st_atime); 4464 put_user(st.st_mtime, &target_st->target_st_mtime); 4465 put_user(st.st_ctime, &target_st->target_st_ctime); 4466 unlock_user_struct(target_st, arg2, 0); 4467 } else 4468 #endif 4469 { 4470 struct target_stat64 *target_st; 4471 lock_user_struct(target_st, arg2, 1); 4472 memset(target_st, 0, sizeof(struct target_stat64)); 4473 /* ??? put_user is probably wrong. */ 4474 put_user(st.st_dev, &target_st->st_dev); 4475 put_user(st.st_ino, &target_st->st_ino); 4476 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4477 put_user(st.st_ino, &target_st->__st_ino); 4478 #endif 4479 put_user(st.st_mode, &target_st->st_mode); 4480 put_user(st.st_nlink, &target_st->st_nlink); 4481 put_user(st.st_uid, &target_st->st_uid); 4482 put_user(st.st_gid, &target_st->st_gid); 4483 put_user(st.st_rdev, &target_st->st_rdev); 4484 /* XXX: better use of kernel struct */ 4485 put_user(st.st_size, &target_st->st_size); 4486 put_user(st.st_blksize, &target_st->st_blksize); 4487 put_user(st.st_blocks, &target_st->st_blocks); 4488 put_user(st.st_atime, &target_st->target_st_atime); 4489 put_user(st.st_mtime, &target_st->target_st_mtime); 4490 put_user(st.st_ctime, &target_st->target_st_ctime); 4491 unlock_user_struct(target_st, arg2, 0); 4492 } 4493 } 4494 } 4495 break; 4496 #endif 4497 #ifdef USE_UID16 4498 case TARGET_NR_lchown: 4499 p = lock_user_string(arg1); 4500 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 4501 unlock_user(p, arg1, 0); 4502 break; 4503 case TARGET_NR_getuid: 4504 ret = get_errno(high2lowuid(getuid())); 4505 break; 4506 case TARGET_NR_getgid: 4507 ret = get_errno(high2lowgid(getgid())); 4508 break; 4509 case TARGET_NR_geteuid: 4510 ret = get_errno(high2lowuid(geteuid())); 4511 break; 4512 case TARGET_NR_getegid: 4513 ret = get_errno(high2lowgid(getegid())); 4514 break; 4515 case TARGET_NR_setreuid: 4516 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 4517 break; 4518 case TARGET_NR_setregid: 4519 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 4520 break; 4521 case TARGET_NR_getgroups: 4522 { 4523 int gidsetsize = arg1; 4524 uint16_t *target_grouplist; 4525 gid_t *grouplist; 4526 int i; 4527 4528 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4529 ret = get_errno(getgroups(gidsetsize, grouplist)); 4530 if (!is_error(ret)) { 4531 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 4532 for(i = 0;i < gidsetsize; i++) 4533 target_grouplist[i] = tswap16(grouplist[i]); 4534 unlock_user(target_grouplist, arg2, gidsetsize * 2); 4535 } 4536 } 4537 break; 4538 case TARGET_NR_setgroups: 4539 { 4540 int gidsetsize = arg1; 4541 uint16_t *target_grouplist; 4542 gid_t *grouplist; 4543 int i; 4544 4545 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4546 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 4547 for(i = 0;i < gidsetsize; i++) 4548 grouplist[i] = tswap16(target_grouplist[i]); 4549 unlock_user(target_grouplist, arg2, 0); 4550 ret = get_errno(setgroups(gidsetsize, grouplist)); 4551 } 4552 break; 4553 case TARGET_NR_fchown: 4554 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 4555 break; 4556 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 4557 case TARGET_NR_fchownat: 4558 if (!arg2) { 4559 ret = -TARGET_EFAULT; 4560 goto fail; 4561 } 4562 p = lock_user_string(arg2); 4563 if (!access_ok(VERIFY_READ, p, 1)) 4564 /* Don't "goto fail" so that cleanup can happen. */ 4565 ret = -TARGET_EFAULT; 4566 else 4567 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 4568 if (p) 4569 unlock_user(p, arg2, 0); 4570 break; 4571 #endif 4572 #ifdef TARGET_NR_setresuid 4573 case TARGET_NR_setresuid: 4574 ret = get_errno(setresuid(low2highuid(arg1), 4575 low2highuid(arg2), 4576 low2highuid(arg3))); 4577 break; 4578 #endif 4579 #ifdef TARGET_NR_getresuid 4580 case TARGET_NR_getresuid: 4581 { 4582 uid_t ruid, euid, suid; 4583 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4584 if (!is_error(ret)) { 4585 tput16(arg1, tswap16(high2lowuid(ruid))); 4586 tput16(arg2, tswap16(high2lowuid(euid))); 4587 tput16(arg3, tswap16(high2lowuid(suid))); 4588 } 4589 } 4590 break; 4591 #endif 4592 #ifdef TARGET_NR_getresgid 4593 case TARGET_NR_setresgid: 4594 ret = get_errno(setresgid(low2highgid(arg1), 4595 low2highgid(arg2), 4596 low2highgid(arg3))); 4597 break; 4598 #endif 4599 #ifdef TARGET_NR_getresgid 4600 case TARGET_NR_getresgid: 4601 { 4602 gid_t rgid, egid, sgid; 4603 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4604 if (!is_error(ret)) { 4605 tput16(arg1, tswap16(high2lowgid(rgid))); 4606 tput16(arg2, tswap16(high2lowgid(egid))); 4607 tput16(arg3, tswap16(high2lowgid(sgid))); 4608 } 4609 } 4610 break; 4611 #endif 4612 case TARGET_NR_chown: 4613 p = lock_user_string(arg1); 4614 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 4615 unlock_user(p, arg1, 0); 4616 break; 4617 case TARGET_NR_setuid: 4618 ret = get_errno(setuid(low2highuid(arg1))); 4619 break; 4620 case TARGET_NR_setgid: 4621 ret = get_errno(setgid(low2highgid(arg1))); 4622 break; 4623 case TARGET_NR_setfsuid: 4624 ret = get_errno(setfsuid(arg1)); 4625 break; 4626 case TARGET_NR_setfsgid: 4627 ret = get_errno(setfsgid(arg1)); 4628 break; 4629 #endif /* USE_UID16 */ 4630 4631 #ifdef TARGET_NR_lchown32 4632 case TARGET_NR_lchown32: 4633 p = lock_user_string(arg1); 4634 ret = get_errno(lchown(p, arg2, arg3)); 4635 unlock_user(p, arg1, 0); 4636 break; 4637 #endif 4638 #ifdef TARGET_NR_getuid32 4639 case TARGET_NR_getuid32: 4640 ret = get_errno(getuid()); 4641 break; 4642 #endif 4643 #ifdef TARGET_NR_getgid32 4644 case TARGET_NR_getgid32: 4645 ret = get_errno(getgid()); 4646 break; 4647 #endif 4648 #ifdef TARGET_NR_geteuid32 4649 case TARGET_NR_geteuid32: 4650 ret = get_errno(geteuid()); 4651 break; 4652 #endif 4653 #ifdef TARGET_NR_getegid32 4654 case TARGET_NR_getegid32: 4655 ret = get_errno(getegid()); 4656 break; 4657 #endif 4658 #ifdef TARGET_NR_setreuid32 4659 case TARGET_NR_setreuid32: 4660 ret = get_errno(setreuid(arg1, arg2)); 4661 break; 4662 #endif 4663 #ifdef TARGET_NR_setregid32 4664 case TARGET_NR_setregid32: 4665 ret = get_errno(setregid(arg1, arg2)); 4666 break; 4667 #endif 4668 #ifdef TARGET_NR_getgroups32 4669 case TARGET_NR_getgroups32: 4670 { 4671 int gidsetsize = arg1; 4672 uint32_t *target_grouplist; 4673 gid_t *grouplist; 4674 int i; 4675 4676 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4677 ret = get_errno(getgroups(gidsetsize, grouplist)); 4678 if (!is_error(ret)) { 4679 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 4680 for(i = 0;i < gidsetsize; i++) 4681 target_grouplist[i] = tswap32(grouplist[i]); 4682 unlock_user(target_grouplist, arg2, gidsetsize * 4); 4683 } 4684 } 4685 break; 4686 #endif 4687 #ifdef TARGET_NR_setgroups32 4688 case TARGET_NR_setgroups32: 4689 { 4690 int gidsetsize = arg1; 4691 uint32_t *target_grouplist; 4692 gid_t *grouplist; 4693 int i; 4694 4695 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4696 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 4697 for(i = 0;i < gidsetsize; i++) 4698 grouplist[i] = tswap32(target_grouplist[i]); 4699 unlock_user(target_grouplist, arg2, 0); 4700 ret = get_errno(setgroups(gidsetsize, grouplist)); 4701 } 4702 break; 4703 #endif 4704 #ifdef TARGET_NR_fchown32 4705 case TARGET_NR_fchown32: 4706 ret = get_errno(fchown(arg1, arg2, arg3)); 4707 break; 4708 #endif 4709 #ifdef TARGET_NR_setresuid32 4710 case TARGET_NR_setresuid32: 4711 ret = get_errno(setresuid(arg1, arg2, arg3)); 4712 break; 4713 #endif 4714 #ifdef TARGET_NR_getresuid32 4715 case TARGET_NR_getresuid32: 4716 { 4717 uid_t ruid, euid, suid; 4718 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4719 if (!is_error(ret)) { 4720 tput32(arg1, tswap32(ruid)); 4721 tput32(arg2, tswap32(euid)); 4722 tput32(arg3, tswap32(suid)); 4723 } 4724 } 4725 break; 4726 #endif 4727 #ifdef TARGET_NR_setresgid32 4728 case TARGET_NR_setresgid32: 4729 ret = get_errno(setresgid(arg1, arg2, arg3)); 4730 break; 4731 #endif 4732 #ifdef TARGET_NR_getresgid32 4733 case TARGET_NR_getresgid32: 4734 { 4735 gid_t rgid, egid, sgid; 4736 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4737 if (!is_error(ret)) { 4738 tput32(arg1, tswap32(rgid)); 4739 tput32(arg2, tswap32(egid)); 4740 tput32(arg3, tswap32(sgid)); 4741 } 4742 } 4743 break; 4744 #endif 4745 #ifdef TARGET_NR_chown32 4746 case TARGET_NR_chown32: 4747 p = lock_user_string(arg1); 4748 ret = get_errno(chown(p, arg2, arg3)); 4749 unlock_user(p, arg1, 0); 4750 break; 4751 #endif 4752 #ifdef TARGET_NR_setuid32 4753 case TARGET_NR_setuid32: 4754 ret = get_errno(setuid(arg1)); 4755 break; 4756 #endif 4757 #ifdef TARGET_NR_setgid32 4758 case TARGET_NR_setgid32: 4759 ret = get_errno(setgid(arg1)); 4760 break; 4761 #endif 4762 #ifdef TARGET_NR_setfsuid32 4763 case TARGET_NR_setfsuid32: 4764 ret = get_errno(setfsuid(arg1)); 4765 break; 4766 #endif 4767 #ifdef TARGET_NR_setfsgid32 4768 case TARGET_NR_setfsgid32: 4769 ret = get_errno(setfsgid(arg1)); 4770 break; 4771 #endif 4772 4773 case TARGET_NR_pivot_root: 4774 goto unimplemented; 4775 #ifdef TARGET_NR_mincore 4776 case TARGET_NR_mincore: 4777 goto unimplemented; 4778 #endif 4779 #ifdef TARGET_NR_madvise 4780 case TARGET_NR_madvise: 4781 /* A straight passthrough may not be safe because qemu sometimes 4782 turns private flie-backed mappings into anonymous mappings. 4783 This will break MADV_DONTNEED. 4784 This is a hint, so ignoring and returning success is ok. */ 4785 ret = get_errno(0); 4786 break; 4787 #endif 4788 #if TARGET_ABI_BITS == 32 4789 case TARGET_NR_fcntl64: 4790 { 4791 int cmd; 4792 struct flock64 fl; 4793 struct target_flock64 *target_fl; 4794 #ifdef TARGET_ARM 4795 struct target_eabi_flock64 *target_efl; 4796 #endif 4797 4798 switch(arg2){ 4799 case TARGET_F_GETLK64: 4800 cmd = F_GETLK64; 4801 break; 4802 case TARGET_F_SETLK64: 4803 cmd = F_SETLK64; 4804 break; 4805 case TARGET_F_SETLKW64: 4806 cmd = F_SETLK64; 4807 break; 4808 default: 4809 cmd = arg2; 4810 break; 4811 } 4812 4813 switch(arg2) { 4814 case TARGET_F_GETLK64: 4815 #ifdef TARGET_ARM 4816 if (((CPUARMState *)cpu_env)->eabi) { 4817 lock_user_struct(target_efl, arg3, 1); 4818 fl.l_type = tswap16(target_efl->l_type); 4819 fl.l_whence = tswap16(target_efl->l_whence); 4820 fl.l_start = tswap64(target_efl->l_start); 4821 fl.l_len = tswap64(target_efl->l_len); 4822 fl.l_pid = tswapl(target_efl->l_pid); 4823 unlock_user_struct(target_efl, arg3, 0); 4824 } else 4825 #endif 4826 { 4827 lock_user_struct(target_fl, arg3, 1); 4828 fl.l_type = tswap16(target_fl->l_type); 4829 fl.l_whence = tswap16(target_fl->l_whence); 4830 fl.l_start = tswap64(target_fl->l_start); 4831 fl.l_len = tswap64(target_fl->l_len); 4832 fl.l_pid = tswapl(target_fl->l_pid); 4833 unlock_user_struct(target_fl, arg3, 0); 4834 } 4835 ret = get_errno(fcntl(arg1, cmd, &fl)); 4836 if (ret == 0) { 4837 #ifdef TARGET_ARM 4838 if (((CPUARMState *)cpu_env)->eabi) { 4839 lock_user_struct(target_efl, arg3, 0); 4840 target_efl->l_type = tswap16(fl.l_type); 4841 target_efl->l_whence = tswap16(fl.l_whence); 4842 target_efl->l_start = tswap64(fl.l_start); 4843 target_efl->l_len = tswap64(fl.l_len); 4844 target_efl->l_pid = tswapl(fl.l_pid); 4845 unlock_user_struct(target_efl, arg3, 1); 4846 } else 4847 #endif 4848 { 4849 lock_user_struct(target_fl, arg3, 0); 4850 target_fl->l_type = tswap16(fl.l_type); 4851 target_fl->l_whence = tswap16(fl.l_whence); 4852 target_fl->l_start = tswap64(fl.l_start); 4853 target_fl->l_len = tswap64(fl.l_len); 4854 target_fl->l_pid = tswapl(fl.l_pid); 4855 unlock_user_struct(target_fl, arg3, 1); 4856 } 4857 } 4858 break; 4859 4860 case TARGET_F_SETLK64: 4861 case TARGET_F_SETLKW64: 4862 #ifdef TARGET_ARM 4863 if (((CPUARMState *)cpu_env)->eabi) { 4864 lock_user_struct(target_efl, arg3, 1); 4865 fl.l_type = tswap16(target_efl->l_type); 4866 fl.l_whence = tswap16(target_efl->l_whence); 4867 fl.l_start = tswap64(target_efl->l_start); 4868 fl.l_len = tswap64(target_efl->l_len); 4869 fl.l_pid = tswapl(target_efl->l_pid); 4870 unlock_user_struct(target_efl, arg3, 0); 4871 } else 4872 #endif 4873 { 4874 lock_user_struct(target_fl, arg3, 1); 4875 fl.l_type = tswap16(target_fl->l_type); 4876 fl.l_whence = tswap16(target_fl->l_whence); 4877 fl.l_start = tswap64(target_fl->l_start); 4878 fl.l_len = tswap64(target_fl->l_len); 4879 fl.l_pid = tswapl(target_fl->l_pid); 4880 unlock_user_struct(target_fl, arg3, 0); 4881 } 4882 ret = get_errno(fcntl(arg1, cmd, &fl)); 4883 break; 4884 default: 4885 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 4886 break; 4887 } 4888 break; 4889 } 4890 #endif 4891 #ifdef TARGET_NR_cacheflush 4892 case TARGET_NR_cacheflush: 4893 /* self-modifying code is handled automatically, so nothing needed */ 4894 ret = 0; 4895 break; 4896 #endif 4897 #ifdef TARGET_NR_security 4898 case TARGET_NR_security: 4899 goto unimplemented; 4900 #endif 4901 #ifdef TARGET_NR_getpagesize 4902 case TARGET_NR_getpagesize: 4903 ret = TARGET_PAGE_SIZE; 4904 break; 4905 #endif 4906 case TARGET_NR_gettid: 4907 ret = get_errno(gettid()); 4908 break; 4909 #ifdef TARGET_NR_readahead 4910 case TARGET_NR_readahead: 4911 goto unimplemented; 4912 #endif 4913 #ifdef TARGET_NR_setxattr 4914 case TARGET_NR_setxattr: 4915 case TARGET_NR_lsetxattr: 4916 case TARGET_NR_fsetxattr: 4917 case TARGET_NR_getxattr: 4918 case TARGET_NR_lgetxattr: 4919 case TARGET_NR_fgetxattr: 4920 case TARGET_NR_listxattr: 4921 case TARGET_NR_llistxattr: 4922 case TARGET_NR_flistxattr: 4923 case TARGET_NR_removexattr: 4924 case TARGET_NR_lremovexattr: 4925 case TARGET_NR_fremovexattr: 4926 goto unimplemented_nowarn; 4927 #endif 4928 #ifdef TARGET_NR_set_thread_area 4929 case TARGET_NR_set_thread_area: 4930 #ifdef TARGET_MIPS 4931 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 4932 ret = 0; 4933 break; 4934 #else 4935 goto unimplemented_nowarn; 4936 #endif 4937 #endif 4938 #ifdef TARGET_NR_get_thread_area 4939 case TARGET_NR_get_thread_area: 4940 goto unimplemented_nowarn; 4941 #endif 4942 #ifdef TARGET_NR_getdomainname 4943 case TARGET_NR_getdomainname: 4944 goto unimplemented_nowarn; 4945 #endif 4946 4947 #ifdef TARGET_NR_clock_gettime 4948 case TARGET_NR_clock_gettime: 4949 { 4950 struct timespec ts; 4951 ret = get_errno(clock_gettime(arg1, &ts)); 4952 if (!is_error(ret)) { 4953 host_to_target_timespec(arg2, &ts); 4954 } 4955 break; 4956 } 4957 #endif 4958 #ifdef TARGET_NR_clock_getres 4959 case TARGET_NR_clock_getres: 4960 { 4961 struct timespec ts; 4962 ret = get_errno(clock_getres(arg1, &ts)); 4963 if (!is_error(ret)) { 4964 host_to_target_timespec(arg2, &ts); 4965 } 4966 break; 4967 } 4968 #endif 4969 4970 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 4971 case TARGET_NR_set_tid_address: 4972 ret = get_errno(set_tid_address((int *) arg1)); 4973 break; 4974 #endif 4975 4976 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 4977 case TARGET_NR_tkill: 4978 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 4979 break; 4980 #endif 4981 4982 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 4983 case TARGET_NR_tgkill: 4984 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 4985 break; 4986 #endif 4987 4988 #ifdef TARGET_NR_set_robust_list 4989 case TARGET_NR_set_robust_list: 4990 goto unimplemented_nowarn; 4991 #endif 4992 4993 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 4994 case TARGET_NR_utimensat: 4995 { 4996 struct timespec ts[2]; 4997 target_to_host_timespec(ts, arg3); 4998 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 4999 if (!arg2) 5000 ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4)); 5001 else { 5002 p = lock_user_string(arg2); 5003 if (!access_ok(VERIFY_READ, p, 1)) 5004 /* Don't "goto fail" so that cleanup can happen. */ 5005 ret = -TARGET_EFAULT; 5006 else 5007 ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4)); 5008 if (p) 5009 unlock_user(p, arg2, 0); 5010 } 5011 } 5012 break; 5013 #endif 5014 5015 default: 5016 unimplemented: 5017 gemu_log("qemu: Unsupported syscall: %d\n", num); 5018 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 5019 unimplemented_nowarn: 5020 #endif 5021 ret = -TARGET_ENOSYS; 5022 break; 5023 } 5024 fail: 5025 #ifdef DEBUG 5026 gemu_log(" = %ld\n", ret); 5027 #endif 5028 return ret; 5029 } 5030