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 #define ERRNO_TABLE_SIZE 1200 255 256 /* target_to_host_errno_table[] is initialized from 257 * host_to_target_errno_table[] in syscall_init(). */ 258 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { 259 }; 260 261 /* 262 * This list is the union of errno values overridden in asm-<arch>/errno.h 263 * minus the errnos that are not actually generic to all archs. 264 */ 265 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { 266 [EIDRM] = TARGET_EIDRM, 267 [ECHRNG] = TARGET_ECHRNG, 268 [EL2NSYNC] = TARGET_EL2NSYNC, 269 [EL3HLT] = TARGET_EL3HLT, 270 [EL3RST] = TARGET_EL3RST, 271 [ELNRNG] = TARGET_ELNRNG, 272 [EUNATCH] = TARGET_EUNATCH, 273 [ENOCSI] = TARGET_ENOCSI, 274 [EL2HLT] = TARGET_EL2HLT, 275 [EDEADLK] = TARGET_EDEADLK, 276 [ENOLCK] = TARGET_ENOLCK, 277 [EBADE] = TARGET_EBADE, 278 [EBADR] = TARGET_EBADR, 279 [EXFULL] = TARGET_EXFULL, 280 [ENOANO] = TARGET_ENOANO, 281 [EBADRQC] = TARGET_EBADRQC, 282 [EBADSLT] = TARGET_EBADSLT, 283 [EBFONT] = TARGET_EBFONT, 284 [ENOSTR] = TARGET_ENOSTR, 285 [ENODATA] = TARGET_ENODATA, 286 [ETIME] = TARGET_ETIME, 287 [ENOSR] = TARGET_ENOSR, 288 [ENONET] = TARGET_ENONET, 289 [ENOPKG] = TARGET_ENOPKG, 290 [EREMOTE] = TARGET_EREMOTE, 291 [ENOLINK] = TARGET_ENOLINK, 292 [EADV] = TARGET_EADV, 293 [ESRMNT] = TARGET_ESRMNT, 294 [ECOMM] = TARGET_ECOMM, 295 [EPROTO] = TARGET_EPROTO, 296 [EDOTDOT] = TARGET_EDOTDOT, 297 [EMULTIHOP] = TARGET_EMULTIHOP, 298 [EBADMSG] = TARGET_EBADMSG, 299 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 300 [EOVERFLOW] = TARGET_EOVERFLOW, 301 [ENOTUNIQ] = TARGET_ENOTUNIQ, 302 [EBADFD] = TARGET_EBADFD, 303 [EREMCHG] = TARGET_EREMCHG, 304 [ELIBACC] = TARGET_ELIBACC, 305 [ELIBBAD] = TARGET_ELIBBAD, 306 [ELIBSCN] = TARGET_ELIBSCN, 307 [ELIBMAX] = TARGET_ELIBMAX, 308 [ELIBEXEC] = TARGET_ELIBEXEC, 309 [EILSEQ] = TARGET_EILSEQ, 310 [ENOSYS] = TARGET_ENOSYS, 311 [ELOOP] = TARGET_ELOOP, 312 [ERESTART] = TARGET_ERESTART, 313 [ESTRPIPE] = TARGET_ESTRPIPE, 314 [ENOTEMPTY] = TARGET_ENOTEMPTY, 315 [EUSERS] = TARGET_EUSERS, 316 [ENOTSOCK] = TARGET_ENOTSOCK, 317 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 318 [EMSGSIZE] = TARGET_EMSGSIZE, 319 [EPROTOTYPE] = TARGET_EPROTOTYPE, 320 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 321 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 322 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 323 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 324 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 325 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 326 [EADDRINUSE] = TARGET_EADDRINUSE, 327 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 328 [ENETDOWN] = TARGET_ENETDOWN, 329 [ENETUNREACH] = TARGET_ENETUNREACH, 330 [ENETRESET] = TARGET_ENETRESET, 331 [ECONNABORTED] = TARGET_ECONNABORTED, 332 [ECONNRESET] = TARGET_ECONNRESET, 333 [ENOBUFS] = TARGET_ENOBUFS, 334 [EISCONN] = TARGET_EISCONN, 335 [ENOTCONN] = TARGET_ENOTCONN, 336 [EUCLEAN] = TARGET_EUCLEAN, 337 [ENOTNAM] = TARGET_ENOTNAM, 338 [ENAVAIL] = TARGET_ENAVAIL, 339 [EISNAM] = TARGET_EISNAM, 340 [EREMOTEIO] = TARGET_EREMOTEIO, 341 [ESHUTDOWN] = TARGET_ESHUTDOWN, 342 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 343 [ETIMEDOUT] = TARGET_ETIMEDOUT, 344 [ECONNREFUSED] = TARGET_ECONNREFUSED, 345 [EHOSTDOWN] = TARGET_EHOSTDOWN, 346 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 347 [EALREADY] = TARGET_EALREADY, 348 [EINPROGRESS] = TARGET_EINPROGRESS, 349 [ESTALE] = TARGET_ESTALE, 350 [ECANCELED] = TARGET_ECANCELED, 351 [ENOMEDIUM] = TARGET_ENOMEDIUM, 352 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 353 #ifdef ENOKEY 354 [ENOKEY] = TARGET_ENOKEY, 355 #endif 356 #ifdef EKEYEXPIRED 357 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 358 #endif 359 #ifdef EKEYREVOKED 360 [EKEYREVOKED] = TARGET_EKEYREVOKED, 361 #endif 362 #ifdef EKEYREJECTED 363 [EKEYREJECTED] = TARGET_EKEYREJECTED, 364 #endif 365 #ifdef EOWNERDEAD 366 [EOWNERDEAD] = TARGET_EOWNERDEAD, 367 #endif 368 #ifdef ENOTRECOVERABLE 369 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 370 #endif 371 }; 372 373 static inline int host_to_target_errno(int err) 374 { 375 if(host_to_target_errno_table[err]) 376 return host_to_target_errno_table[err]; 377 return err; 378 } 379 380 static inline int target_to_host_errno(int err) 381 { 382 if (target_to_host_errno_table[err]) 383 return target_to_host_errno_table[err]; 384 return err; 385 } 386 387 static inline abi_long get_errno(abi_long ret) 388 { 389 if (ret == -1) 390 return -host_to_target_errno(errno); 391 else 392 return ret; 393 } 394 395 static inline int is_error(abi_long ret) 396 { 397 return (abi_ulong)ret >= (abi_ulong)(-4096); 398 } 399 400 char *target_strerror(int err) 401 { 402 return strerror(target_to_host_errno(err)); 403 } 404 405 static abi_ulong target_brk; 406 static abi_ulong target_original_brk; 407 408 void target_set_brk(abi_ulong new_brk) 409 { 410 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 411 } 412 413 /* do_brk() must return target values and target errnos. */ 414 abi_long do_brk(abi_ulong new_brk) 415 { 416 abi_ulong brk_page; 417 abi_long mapped_addr; 418 int new_alloc_size; 419 420 if (!new_brk) 421 return target_brk; 422 if (new_brk < target_original_brk) 423 return -TARGET_ENOMEM; 424 425 brk_page = HOST_PAGE_ALIGN(target_brk); 426 427 /* If the new brk is less than this, set it and we're done... */ 428 if (new_brk < brk_page) { 429 target_brk = new_brk; 430 return target_brk; 431 } 432 433 /* We need to allocate more memory after the brk... */ 434 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 435 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 436 PROT_READ|PROT_WRITE, 437 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 438 if (is_error(mapped_addr)) { 439 return mapped_addr; 440 } else { 441 target_brk = new_brk; 442 return target_brk; 443 } 444 } 445 446 static inline fd_set *target_to_host_fds(fd_set *fds, 447 abi_long *target_fds, int n) 448 { 449 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 450 return (fd_set *)target_fds; 451 #else 452 int i, b; 453 if (target_fds) { 454 FD_ZERO(fds); 455 for(i = 0;i < n; i++) { 456 b = (tswapl(target_fds[i / TARGET_ABI_BITS]) >> 457 (i & (TARGET_ABI_BITS - 1))) & 1; 458 if (b) 459 FD_SET(i, fds); 460 } 461 return fds; 462 } else { 463 return NULL; 464 } 465 #endif 466 } 467 468 static inline void host_to_target_fds(abi_long *target_fds, 469 fd_set *fds, int n) 470 { 471 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 472 /* nothing to do */ 473 #else 474 int i, nw, j, k; 475 abi_long v; 476 477 if (target_fds) { 478 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 479 k = 0; 480 for(i = 0;i < nw; i++) { 481 v = 0; 482 for(j = 0; j < TARGET_ABI_BITS; j++) { 483 v |= ((FD_ISSET(k, fds) != 0) << j); 484 k++; 485 } 486 target_fds[i] = tswapl(v); 487 } 488 } 489 #endif 490 } 491 492 #if defined(__alpha__) 493 #define HOST_HZ 1024 494 #else 495 #define HOST_HZ 100 496 #endif 497 498 static inline abi_long host_to_target_clock_t(long ticks) 499 { 500 #if HOST_HZ == TARGET_HZ 501 return ticks; 502 #else 503 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 504 #endif 505 } 506 507 static inline void host_to_target_rusage(abi_ulong target_addr, 508 const struct rusage *rusage) 509 { 510 struct target_rusage *target_rusage; 511 512 lock_user_struct(target_rusage, target_addr, 0); 513 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 514 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 515 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 516 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 517 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 518 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 519 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 520 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 521 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 522 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 523 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 524 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 525 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 526 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 527 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 528 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 529 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 530 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 531 unlock_user_struct(target_rusage, target_addr, 1); 532 } 533 534 static inline void target_to_host_timeval(struct timeval *tv, 535 abi_ulong target_addr) 536 { 537 struct target_timeval *target_tv; 538 539 lock_user_struct(target_tv, target_addr, 1); 540 tv->tv_sec = tswapl(target_tv->tv_sec); 541 tv->tv_usec = tswapl(target_tv->tv_usec); 542 unlock_user_struct(target_tv, target_addr, 0); 543 } 544 545 static inline void host_to_target_timeval(abi_ulong target_addr, 546 const struct timeval *tv) 547 { 548 struct target_timeval *target_tv; 549 550 lock_user_struct(target_tv, target_addr, 0); 551 target_tv->tv_sec = tswapl(tv->tv_sec); 552 target_tv->tv_usec = tswapl(tv->tv_usec); 553 unlock_user_struct(target_tv, target_addr, 1); 554 } 555 556 557 /* do_select() must return target values and target errnos. */ 558 static abi_long do_select(int n, 559 abi_ulong rfd_p, abi_ulong wfd_p, 560 abi_ulong efd_p, abi_ulong target_tv) 561 { 562 fd_set rfds, wfds, efds; 563 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 564 abi_long *target_rfds, *target_wfds, *target_efds; 565 struct timeval tv, *tv_ptr; 566 abi_long ret; 567 int ok; 568 569 if (rfd_p) { 570 target_rfds = lock_user(rfd_p, sizeof(abi_long) * n, 1); 571 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 572 } else { 573 target_rfds = NULL; 574 rfds_ptr = NULL; 575 } 576 if (wfd_p) { 577 target_wfds = lock_user(wfd_p, sizeof(abi_long) * n, 1); 578 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 579 } else { 580 target_wfds = NULL; 581 wfds_ptr = NULL; 582 } 583 if (efd_p) { 584 target_efds = lock_user(efd_p, sizeof(abi_long) * n, 1); 585 efds_ptr = target_to_host_fds(&efds, target_efds, n); 586 } else { 587 target_efds = NULL; 588 efds_ptr = NULL; 589 } 590 591 if (target_tv) { 592 target_to_host_timeval(&tv, target_tv); 593 tv_ptr = &tv; 594 } else { 595 tv_ptr = NULL; 596 } 597 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 598 ok = !is_error(ret); 599 600 if (ok) { 601 host_to_target_fds(target_rfds, rfds_ptr, n); 602 host_to_target_fds(target_wfds, wfds_ptr, n); 603 host_to_target_fds(target_efds, efds_ptr, n); 604 605 if (target_tv) { 606 host_to_target_timeval(target_tv, &tv); 607 } 608 } 609 if (target_rfds) 610 unlock_user(target_rfds, rfd_p, ok ? sizeof(abi_long) * n : 0); 611 if (target_wfds) 612 unlock_user(target_wfds, wfd_p, ok ? sizeof(abi_long) * n : 0); 613 if (target_efds) 614 unlock_user(target_efds, efd_p, ok ? sizeof(abi_long) * n : 0); 615 616 return ret; 617 } 618 619 static inline void target_to_host_sockaddr(struct sockaddr *addr, 620 abi_ulong target_addr, 621 socklen_t len) 622 { 623 struct target_sockaddr *target_saddr; 624 625 target_saddr = lock_user(target_addr, len, 1); 626 memcpy(addr, target_saddr, len); 627 addr->sa_family = tswap16(target_saddr->sa_family); 628 unlock_user(target_saddr, target_addr, 0); 629 } 630 631 static inline void host_to_target_sockaddr(abi_ulong target_addr, 632 struct sockaddr *addr, 633 socklen_t len) 634 { 635 struct target_sockaddr *target_saddr; 636 637 target_saddr = lock_user(target_addr, len, 0); 638 memcpy(target_saddr, addr, len); 639 target_saddr->sa_family = tswap16(addr->sa_family); 640 unlock_user(target_saddr, target_addr, len); 641 } 642 643 /* ??? Should this also swap msgh->name? */ 644 static inline void target_to_host_cmsg(struct msghdr *msgh, 645 struct target_msghdr *target_msgh) 646 { 647 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 648 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 649 socklen_t space = 0; 650 651 while (cmsg && target_cmsg) { 652 void *data = CMSG_DATA(cmsg); 653 void *target_data = TARGET_CMSG_DATA(target_cmsg); 654 655 int len = tswapl(target_cmsg->cmsg_len) 656 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 657 658 space += CMSG_SPACE(len); 659 if (space > msgh->msg_controllen) { 660 space -= CMSG_SPACE(len); 661 gemu_log("Host cmsg overflow\n"); 662 break; 663 } 664 665 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 666 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 667 cmsg->cmsg_len = CMSG_LEN(len); 668 669 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 670 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 671 memcpy(data, target_data, len); 672 } else { 673 int *fd = (int *)data; 674 int *target_fd = (int *)target_data; 675 int i, numfds = len / sizeof(int); 676 677 for (i = 0; i < numfds; i++) 678 fd[i] = tswap32(target_fd[i]); 679 } 680 681 cmsg = CMSG_NXTHDR(msgh, cmsg); 682 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 683 } 684 685 msgh->msg_controllen = space; 686 } 687 688 /* ??? Should this also swap msgh->name? */ 689 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 690 struct msghdr *msgh) 691 { 692 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 693 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 694 socklen_t space = 0; 695 696 while (cmsg && target_cmsg) { 697 void *data = CMSG_DATA(cmsg); 698 void *target_data = TARGET_CMSG_DATA(target_cmsg); 699 700 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 701 702 space += TARGET_CMSG_SPACE(len); 703 if (space > tswapl(target_msgh->msg_controllen)) { 704 space -= TARGET_CMSG_SPACE(len); 705 gemu_log("Target cmsg overflow\n"); 706 break; 707 } 708 709 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 710 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 711 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 712 713 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 714 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 715 memcpy(target_data, data, len); 716 } else { 717 int *fd = (int *)data; 718 int *target_fd = (int *)target_data; 719 int i, numfds = len / sizeof(int); 720 721 for (i = 0; i < numfds; i++) 722 target_fd[i] = tswap32(fd[i]); 723 } 724 725 cmsg = CMSG_NXTHDR(msgh, cmsg); 726 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 727 } 728 729 msgh->msg_controllen = tswapl(space); 730 } 731 732 /* do_setsockopt() Must return target values and target errnos. */ 733 static abi_long do_setsockopt(int sockfd, int level, int optname, 734 abi_ulong optval, socklen_t optlen) 735 { 736 abi_long ret; 737 int val; 738 739 switch(level) { 740 case SOL_TCP: 741 /* TCP options all take an 'int' value. */ 742 if (optlen < sizeof(uint32_t)) 743 return -TARGET_EINVAL; 744 745 val = tget32(optval); 746 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 747 break; 748 case SOL_IP: 749 switch(optname) { 750 case IP_TOS: 751 case IP_TTL: 752 case IP_HDRINCL: 753 case IP_ROUTER_ALERT: 754 case IP_RECVOPTS: 755 case IP_RETOPTS: 756 case IP_PKTINFO: 757 case IP_MTU_DISCOVER: 758 case IP_RECVERR: 759 case IP_RECVTOS: 760 #ifdef IP_FREEBIND 761 case IP_FREEBIND: 762 #endif 763 case IP_MULTICAST_TTL: 764 case IP_MULTICAST_LOOP: 765 val = 0; 766 if (optlen >= sizeof(uint32_t)) { 767 val = tget32(optval); 768 } else if (optlen >= 1) { 769 val = tget8(optval); 770 } 771 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 772 break; 773 default: 774 goto unimplemented; 775 } 776 break; 777 case TARGET_SOL_SOCKET: 778 switch (optname) { 779 /* Options with 'int' argument. */ 780 case TARGET_SO_DEBUG: 781 optname = SO_DEBUG; 782 break; 783 case TARGET_SO_REUSEADDR: 784 optname = SO_REUSEADDR; 785 break; 786 case TARGET_SO_TYPE: 787 optname = SO_TYPE; 788 break; 789 case TARGET_SO_ERROR: 790 optname = SO_ERROR; 791 break; 792 case TARGET_SO_DONTROUTE: 793 optname = SO_DONTROUTE; 794 break; 795 case TARGET_SO_BROADCAST: 796 optname = SO_BROADCAST; 797 break; 798 case TARGET_SO_SNDBUF: 799 optname = SO_SNDBUF; 800 break; 801 case TARGET_SO_RCVBUF: 802 optname = SO_RCVBUF; 803 break; 804 case TARGET_SO_KEEPALIVE: 805 optname = SO_KEEPALIVE; 806 break; 807 case TARGET_SO_OOBINLINE: 808 optname = SO_OOBINLINE; 809 break; 810 case TARGET_SO_NO_CHECK: 811 optname = SO_NO_CHECK; 812 break; 813 case TARGET_SO_PRIORITY: 814 optname = SO_PRIORITY; 815 break; 816 #ifdef SO_BSDCOMPAT 817 case TARGET_SO_BSDCOMPAT: 818 optname = SO_BSDCOMPAT; 819 break; 820 #endif 821 case TARGET_SO_PASSCRED: 822 optname = SO_PASSCRED; 823 break; 824 case TARGET_SO_TIMESTAMP: 825 optname = SO_TIMESTAMP; 826 break; 827 case TARGET_SO_RCVLOWAT: 828 optname = SO_RCVLOWAT; 829 break; 830 case TARGET_SO_RCVTIMEO: 831 optname = SO_RCVTIMEO; 832 break; 833 case TARGET_SO_SNDTIMEO: 834 optname = SO_SNDTIMEO; 835 break; 836 break; 837 default: 838 goto unimplemented; 839 } 840 if (optlen < sizeof(uint32_t)) 841 return -TARGET_EINVAL; 842 843 val = tget32(optval); 844 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 845 break; 846 default: 847 unimplemented: 848 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 849 ret = -TARGET_ENOSYS; 850 } 851 return ret; 852 } 853 854 /* do_getsockopt() Must return target values and target errnos. */ 855 static abi_long do_getsockopt(int sockfd, int level, int optname, 856 abi_ulong optval, abi_ulong optlen) 857 { 858 abi_long ret; 859 int len, lv, val; 860 861 switch(level) { 862 case TARGET_SOL_SOCKET: 863 level = SOL_SOCKET; 864 switch (optname) { 865 case TARGET_SO_LINGER: 866 case TARGET_SO_RCVTIMEO: 867 case TARGET_SO_SNDTIMEO: 868 case TARGET_SO_PEERCRED: 869 case TARGET_SO_PEERNAME: 870 /* These don't just return a single integer */ 871 goto unimplemented; 872 default: 873 goto int_case; 874 } 875 break; 876 case SOL_TCP: 877 /* TCP options all take an 'int' value. */ 878 int_case: 879 len = tget32(optlen); 880 if (len < 0) 881 return -TARGET_EINVAL; 882 lv = sizeof(int); 883 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 884 if (ret < 0) 885 return ret; 886 val = tswap32(val); 887 if (len > lv) 888 len = lv; 889 if (len == 4) 890 tput32(optval, val); 891 else 892 tput8(optval, val); 893 tput32(optlen, len); 894 break; 895 case SOL_IP: 896 switch(optname) { 897 case IP_TOS: 898 case IP_TTL: 899 case IP_HDRINCL: 900 case IP_ROUTER_ALERT: 901 case IP_RECVOPTS: 902 case IP_RETOPTS: 903 case IP_PKTINFO: 904 case IP_MTU_DISCOVER: 905 case IP_RECVERR: 906 case IP_RECVTOS: 907 #ifdef IP_FREEBIND 908 case IP_FREEBIND: 909 #endif 910 case IP_MULTICAST_TTL: 911 case IP_MULTICAST_LOOP: 912 len = tget32(optlen); 913 if (len < 0) 914 return -TARGET_EINVAL; 915 lv = sizeof(int); 916 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 917 if (ret < 0) 918 return ret; 919 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 920 len = 1; 921 tput32(optlen, len); 922 tput8(optval, val); 923 } else { 924 if (len > sizeof(int)) 925 len = sizeof(int); 926 tput32(optlen, len); 927 tput32(optval, val); 928 } 929 break; 930 default: 931 goto unimplemented; 932 } 933 break; 934 default: 935 unimplemented: 936 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 937 level, optname); 938 ret = -TARGET_ENOSYS; 939 break; 940 } 941 return ret; 942 } 943 944 static void lock_iovec(struct iovec *vec, abi_ulong target_addr, 945 int count, int copy) 946 { 947 struct target_iovec *target_vec; 948 abi_ulong base; 949 int i; 950 951 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 952 for(i = 0;i < count; i++) { 953 base = tswapl(target_vec[i].iov_base); 954 vec[i].iov_len = tswapl(target_vec[i].iov_len); 955 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 956 } 957 unlock_user (target_vec, target_addr, 0); 958 } 959 960 static void unlock_iovec(struct iovec *vec, abi_ulong target_addr, 961 int count, int copy) 962 { 963 struct target_iovec *target_vec; 964 abi_ulong base; 965 int i; 966 967 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 968 for(i = 0;i < count; i++) { 969 base = tswapl(target_vec[i].iov_base); 970 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 971 } 972 unlock_user (target_vec, target_addr, 0); 973 } 974 975 /* do_socket() Must return target values and target errnos. */ 976 static abi_long do_socket(int domain, int type, int protocol) 977 { 978 #if defined(TARGET_MIPS) 979 switch(type) { 980 case TARGET_SOCK_DGRAM: 981 type = SOCK_DGRAM; 982 break; 983 case TARGET_SOCK_STREAM: 984 type = SOCK_STREAM; 985 break; 986 case TARGET_SOCK_RAW: 987 type = SOCK_RAW; 988 break; 989 case TARGET_SOCK_RDM: 990 type = SOCK_RDM; 991 break; 992 case TARGET_SOCK_SEQPACKET: 993 type = SOCK_SEQPACKET; 994 break; 995 case TARGET_SOCK_PACKET: 996 type = SOCK_PACKET; 997 break; 998 } 999 #endif 1000 if (domain == PF_NETLINK) 1001 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 1002 return get_errno(socket(domain, type, protocol)); 1003 } 1004 1005 /* do_bind() Must return target values and target errnos. */ 1006 static abi_long do_bind(int sockfd, abi_ulong target_addr, 1007 socklen_t addrlen) 1008 { 1009 void *addr = alloca(addrlen); 1010 1011 target_to_host_sockaddr(addr, target_addr, addrlen); 1012 return get_errno(bind(sockfd, addr, addrlen)); 1013 } 1014 1015 /* do_connect() Must return target values and target errnos. */ 1016 static abi_long do_connect(int sockfd, abi_ulong target_addr, 1017 socklen_t addrlen) 1018 { 1019 void *addr = alloca(addrlen); 1020 1021 target_to_host_sockaddr(addr, target_addr, addrlen); 1022 return get_errno(connect(sockfd, addr, addrlen)); 1023 } 1024 1025 /* do_sendrecvmsg() Must return target values and target errnos. */ 1026 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1027 int flags, int send) 1028 { 1029 abi_long ret; 1030 struct target_msghdr *msgp; 1031 struct msghdr msg; 1032 int count; 1033 struct iovec *vec; 1034 abi_ulong target_vec; 1035 1036 lock_user_struct(msgp, target_msg, 1); 1037 if (msgp->msg_name) { 1038 msg.msg_namelen = tswap32(msgp->msg_namelen); 1039 msg.msg_name = alloca(msg.msg_namelen); 1040 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 1041 msg.msg_namelen); 1042 } else { 1043 msg.msg_name = NULL; 1044 msg.msg_namelen = 0; 1045 } 1046 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 1047 msg.msg_control = alloca(msg.msg_controllen); 1048 msg.msg_flags = tswap32(msgp->msg_flags); 1049 1050 count = tswapl(msgp->msg_iovlen); 1051 vec = alloca(count * sizeof(struct iovec)); 1052 target_vec = tswapl(msgp->msg_iov); 1053 lock_iovec(vec, target_vec, count, send); 1054 msg.msg_iovlen = count; 1055 msg.msg_iov = vec; 1056 1057 if (send) { 1058 target_to_host_cmsg(&msg, msgp); 1059 ret = get_errno(sendmsg(fd, &msg, flags)); 1060 } else { 1061 ret = get_errno(recvmsg(fd, &msg, flags)); 1062 if (!is_error(ret)) 1063 host_to_target_cmsg(msgp, &msg); 1064 } 1065 unlock_iovec(vec, target_vec, count, !send); 1066 return ret; 1067 } 1068 1069 /* do_accept() Must return target values and target errnos. */ 1070 static abi_long do_accept(int fd, abi_ulong target_addr, 1071 abi_ulong target_addrlen) 1072 { 1073 socklen_t addrlen = tget32(target_addrlen); 1074 void *addr = alloca(addrlen); 1075 abi_long ret; 1076 1077 ret = get_errno(accept(fd, addr, &addrlen)); 1078 if (!is_error(ret)) { 1079 host_to_target_sockaddr(target_addr, addr, addrlen); 1080 tput32(target_addrlen, addrlen); 1081 } 1082 return ret; 1083 } 1084 1085 /* do_getpeername() Must return target values and target errnos. */ 1086 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1087 abi_ulong target_addrlen) 1088 { 1089 socklen_t addrlen = tget32(target_addrlen); 1090 void *addr = alloca(addrlen); 1091 abi_long ret; 1092 1093 ret = get_errno(getpeername(fd, addr, &addrlen)); 1094 if (!is_error(ret)) { 1095 host_to_target_sockaddr(target_addr, addr, addrlen); 1096 tput32(target_addrlen, addrlen); 1097 } 1098 return ret; 1099 } 1100 1101 /* do_getsockname() Must return target values and target errnos. */ 1102 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1103 abi_ulong target_addrlen) 1104 { 1105 socklen_t addrlen = tget32(target_addrlen); 1106 void *addr = alloca(addrlen); 1107 abi_long ret; 1108 1109 ret = get_errno(getsockname(fd, addr, &addrlen)); 1110 if (!is_error(ret)) { 1111 host_to_target_sockaddr(target_addr, addr, addrlen); 1112 tput32(target_addrlen, addrlen); 1113 } 1114 return ret; 1115 } 1116 1117 /* do_socketpair() Must return target values and target errnos. */ 1118 static abi_long do_socketpair(int domain, int type, int protocol, 1119 abi_ulong target_tab) 1120 { 1121 int tab[2]; 1122 abi_long ret; 1123 1124 ret = get_errno(socketpair(domain, type, protocol, tab)); 1125 if (!is_error(ret)) { 1126 tput32(target_tab, tab[0]); 1127 tput32(target_tab + 4, tab[1]); 1128 } 1129 return ret; 1130 } 1131 1132 /* do_sendto() Must return target values and target errnos. */ 1133 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1134 abi_ulong target_addr, socklen_t addrlen) 1135 { 1136 void *addr; 1137 void *host_msg; 1138 abi_long ret; 1139 1140 host_msg = lock_user(msg, len, 1); 1141 if (target_addr) { 1142 addr = alloca(addrlen); 1143 target_to_host_sockaddr(addr, target_addr, addrlen); 1144 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1145 } else { 1146 ret = get_errno(send(fd, host_msg, len, flags)); 1147 } 1148 unlock_user(host_msg, msg, 0); 1149 return ret; 1150 } 1151 1152 /* do_recvfrom() Must return target values and target errnos. */ 1153 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 1154 abi_ulong target_addr, 1155 abi_ulong target_addrlen) 1156 { 1157 socklen_t addrlen; 1158 void *addr; 1159 void *host_msg; 1160 abi_long ret; 1161 1162 host_msg = lock_user(msg, len, 0); 1163 if (target_addr) { 1164 addrlen = tget32(target_addrlen); 1165 addr = alloca(addrlen); 1166 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1167 } else { 1168 addr = NULL; /* To keep compiler quiet. */ 1169 ret = get_errno(recv(fd, host_msg, len, flags)); 1170 } 1171 if (!is_error(ret)) { 1172 if (target_addr) { 1173 host_to_target_sockaddr(target_addr, addr, addrlen); 1174 tput32(target_addrlen, addrlen); 1175 } 1176 unlock_user(host_msg, msg, len); 1177 } else { 1178 unlock_user(host_msg, msg, 0); 1179 } 1180 return ret; 1181 } 1182 1183 #ifdef TARGET_NR_socketcall 1184 /* do_socketcall() Must return target values and target errnos. */ 1185 static abi_long do_socketcall(int num, abi_ulong vptr) 1186 { 1187 abi_long ret; 1188 const int n = sizeof(abi_ulong); 1189 1190 switch(num) { 1191 case SOCKOP_socket: 1192 { 1193 int domain = tgetl(vptr); 1194 int type = tgetl(vptr + n); 1195 int protocol = tgetl(vptr + 2 * n); 1196 ret = do_socket(domain, type, protocol); 1197 } 1198 break; 1199 case SOCKOP_bind: 1200 { 1201 int sockfd = tgetl(vptr); 1202 abi_ulong target_addr = tgetl(vptr + n); 1203 socklen_t addrlen = tgetl(vptr + 2 * n); 1204 ret = do_bind(sockfd, target_addr, addrlen); 1205 } 1206 break; 1207 case SOCKOP_connect: 1208 { 1209 int sockfd = tgetl(vptr); 1210 abi_ulong target_addr = tgetl(vptr + n); 1211 socklen_t addrlen = tgetl(vptr + 2 * n); 1212 ret = do_connect(sockfd, target_addr, addrlen); 1213 } 1214 break; 1215 case SOCKOP_listen: 1216 { 1217 int sockfd = tgetl(vptr); 1218 int backlog = tgetl(vptr + n); 1219 ret = get_errno(listen(sockfd, backlog)); 1220 } 1221 break; 1222 case SOCKOP_accept: 1223 { 1224 int sockfd = tgetl(vptr); 1225 abi_ulong target_addr = tgetl(vptr + n); 1226 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1227 ret = do_accept(sockfd, target_addr, target_addrlen); 1228 } 1229 break; 1230 case SOCKOP_getsockname: 1231 { 1232 int sockfd = tgetl(vptr); 1233 abi_ulong target_addr = tgetl(vptr + n); 1234 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1235 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1236 } 1237 break; 1238 case SOCKOP_getpeername: 1239 { 1240 int sockfd = tgetl(vptr); 1241 abi_ulong target_addr = tgetl(vptr + n); 1242 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1243 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1244 } 1245 break; 1246 case SOCKOP_socketpair: 1247 { 1248 int domain = tgetl(vptr); 1249 int type = tgetl(vptr + n); 1250 int protocol = tgetl(vptr + 2 * n); 1251 abi_ulong tab = tgetl(vptr + 3 * n); 1252 ret = do_socketpair(domain, type, protocol, tab); 1253 } 1254 break; 1255 case SOCKOP_send: 1256 { 1257 int sockfd = tgetl(vptr); 1258 abi_ulong msg = tgetl(vptr + n); 1259 size_t len = tgetl(vptr + 2 * n); 1260 int flags = tgetl(vptr + 3 * n); 1261 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1262 } 1263 break; 1264 case SOCKOP_recv: 1265 { 1266 int sockfd = tgetl(vptr); 1267 abi_ulong msg = tgetl(vptr + n); 1268 size_t len = tgetl(vptr + 2 * n); 1269 int flags = tgetl(vptr + 3 * n); 1270 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1271 } 1272 break; 1273 case SOCKOP_sendto: 1274 { 1275 int sockfd = tgetl(vptr); 1276 abi_ulong msg = tgetl(vptr + n); 1277 size_t len = tgetl(vptr + 2 * n); 1278 int flags = tgetl(vptr + 3 * n); 1279 abi_ulong addr = tgetl(vptr + 4 * n); 1280 socklen_t addrlen = tgetl(vptr + 5 * n); 1281 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1282 } 1283 break; 1284 case SOCKOP_recvfrom: 1285 { 1286 int sockfd = tgetl(vptr); 1287 abi_ulong msg = tgetl(vptr + n); 1288 size_t len = tgetl(vptr + 2 * n); 1289 int flags = tgetl(vptr + 3 * n); 1290 abi_ulong addr = tgetl(vptr + 4 * n); 1291 abi_ulong addrlen = tgetl(vptr + 5 * n); 1292 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1293 } 1294 break; 1295 case SOCKOP_shutdown: 1296 { 1297 int sockfd = tgetl(vptr); 1298 int how = tgetl(vptr + n); 1299 1300 ret = get_errno(shutdown(sockfd, how)); 1301 } 1302 break; 1303 case SOCKOP_sendmsg: 1304 case SOCKOP_recvmsg: 1305 { 1306 int fd; 1307 abi_ulong target_msg; 1308 int flags; 1309 1310 fd = tgetl(vptr); 1311 target_msg = tgetl(vptr + n); 1312 flags = tgetl(vptr + 2 * n); 1313 1314 ret = do_sendrecvmsg(fd, target_msg, flags, 1315 (num == SOCKOP_sendmsg)); 1316 } 1317 break; 1318 case SOCKOP_setsockopt: 1319 { 1320 int sockfd = tgetl(vptr); 1321 int level = tgetl(vptr + n); 1322 int optname = tgetl(vptr + 2 * n); 1323 abi_ulong optval = tgetl(vptr + 3 * n); 1324 socklen_t optlen = tgetl(vptr + 4 * n); 1325 1326 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1327 } 1328 break; 1329 case SOCKOP_getsockopt: 1330 { 1331 int sockfd = tgetl(vptr); 1332 int level = tgetl(vptr + n); 1333 int optname = tgetl(vptr + 2 * n); 1334 abi_ulong optval = tgetl(vptr + 3 * n); 1335 abi_ulong poptlen = tgetl(vptr + 4 * n); 1336 1337 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1338 } 1339 break; 1340 default: 1341 gemu_log("Unsupported socketcall: %d\n", num); 1342 ret = -TARGET_ENOSYS; 1343 break; 1344 } 1345 return ret; 1346 } 1347 #endif 1348 1349 #ifdef TARGET_NR_ipc 1350 #define N_SHM_REGIONS 32 1351 1352 static struct shm_region { 1353 uint32_t start; 1354 uint32_t size; 1355 } shm_regions[N_SHM_REGIONS]; 1356 1357 struct target_ipc_perm 1358 { 1359 abi_long __key; 1360 abi_ulong uid; 1361 abi_ulong gid; 1362 abi_ulong cuid; 1363 abi_ulong cgid; 1364 unsigned short int mode; 1365 unsigned short int __pad1; 1366 unsigned short int __seq; 1367 unsigned short int __pad2; 1368 abi_ulong __unused1; 1369 abi_ulong __unused2; 1370 }; 1371 1372 struct target_semid_ds 1373 { 1374 struct target_ipc_perm sem_perm; 1375 abi_ulong sem_otime; 1376 abi_ulong __unused1; 1377 abi_ulong sem_ctime; 1378 abi_ulong __unused2; 1379 abi_ulong sem_nsems; 1380 abi_ulong __unused3; 1381 abi_ulong __unused4; 1382 }; 1383 1384 static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip, 1385 abi_ulong target_addr) 1386 { 1387 struct target_ipc_perm *target_ip; 1388 struct target_semid_ds *target_sd; 1389 1390 lock_user_struct(target_sd, target_addr, 1); 1391 target_ip=&(target_sd->sem_perm); 1392 host_ip->__key = tswapl(target_ip->__key); 1393 host_ip->uid = tswapl(target_ip->uid); 1394 host_ip->gid = tswapl(target_ip->gid); 1395 host_ip->cuid = tswapl(target_ip->cuid); 1396 host_ip->cgid = tswapl(target_ip->cgid); 1397 host_ip->mode = tswapl(target_ip->mode); 1398 unlock_user_struct(target_sd, target_addr, 0); 1399 } 1400 1401 static inline void host_to_target_ipc_perm(abi_ulong target_addr, 1402 struct ipc_perm *host_ip) 1403 { 1404 struct target_ipc_perm *target_ip; 1405 struct target_semid_ds *target_sd; 1406 1407 lock_user_struct(target_sd, target_addr, 0); 1408 target_ip = &(target_sd->sem_perm); 1409 target_ip->__key = tswapl(host_ip->__key); 1410 target_ip->uid = tswapl(host_ip->uid); 1411 target_ip->gid = tswapl(host_ip->gid); 1412 target_ip->cuid = tswapl(host_ip->cuid); 1413 target_ip->cgid = tswapl(host_ip->cgid); 1414 target_ip->mode = tswapl(host_ip->mode); 1415 unlock_user_struct(target_sd, target_addr, 1); 1416 } 1417 1418 static inline void target_to_host_semid_ds(struct semid_ds *host_sd, 1419 abi_ulong target_addr) 1420 { 1421 struct target_semid_ds *target_sd; 1422 1423 lock_user_struct(target_sd, target_addr, 1); 1424 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1425 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1426 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1427 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1428 unlock_user_struct(target_sd, target_addr, 0); 1429 } 1430 1431 static inline void host_to_target_semid_ds(abi_ulong target_addr, 1432 struct semid_ds *host_sd) 1433 { 1434 struct target_semid_ds *target_sd; 1435 1436 lock_user_struct(target_sd, target_addr, 0); 1437 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1438 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1439 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1440 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1441 unlock_user_struct(target_sd, target_addr, 1); 1442 } 1443 1444 union semun { 1445 int val; 1446 struct semid_ds *buf; 1447 unsigned short *array; 1448 }; 1449 1450 union target_semun { 1451 int val; 1452 abi_long buf; 1453 unsigned short int *array; 1454 }; 1455 1456 static inline void target_to_host_semun(int cmd, 1457 union semun *host_su, 1458 abi_ulong target_addr, 1459 struct semid_ds *ds) 1460 { 1461 union target_semun *target_su; 1462 1463 switch( cmd ) { 1464 case IPC_STAT: 1465 case IPC_SET: 1466 lock_user_struct(target_su, target_addr, 1); 1467 target_to_host_semid_ds(ds,target_su->buf); 1468 host_su->buf = ds; 1469 unlock_user_struct(target_su, target_addr, 0); 1470 break; 1471 case GETVAL: 1472 case SETVAL: 1473 lock_user_struct(target_su, target_addr, 1); 1474 host_su->val = tswapl(target_su->val); 1475 unlock_user_struct(target_su, target_addr, 0); 1476 break; 1477 case GETALL: 1478 case SETALL: 1479 lock_user_struct(target_su, target_addr, 1); 1480 *host_su->array = tswap16(*target_su->array); 1481 unlock_user_struct(target_su, target_addr, 0); 1482 break; 1483 default: 1484 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1485 } 1486 } 1487 1488 static inline void host_to_target_semun(int cmd, 1489 abi_ulong target_addr, 1490 union semun *host_su, 1491 struct semid_ds *ds) 1492 { 1493 union target_semun *target_su; 1494 1495 switch( cmd ) { 1496 case IPC_STAT: 1497 case IPC_SET: 1498 lock_user_struct(target_su, target_addr, 0); 1499 host_to_target_semid_ds(target_su->buf,ds); 1500 unlock_user_struct(target_su, target_addr, 1); 1501 break; 1502 case GETVAL: 1503 case SETVAL: 1504 lock_user_struct(target_su, target_addr, 0); 1505 target_su->val = tswapl(host_su->val); 1506 unlock_user_struct(target_su, target_addr, 1); 1507 break; 1508 case GETALL: 1509 case SETALL: 1510 lock_user_struct(target_su, target_addr, 0); 1511 *target_su->array = tswap16(*host_su->array); 1512 unlock_user_struct(target_su, target_addr, 1); 1513 break; 1514 default: 1515 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1516 } 1517 } 1518 1519 static inline abi_long do_semctl(int first, int second, int third, 1520 abi_long ptr) 1521 { 1522 union semun arg; 1523 struct semid_ds dsarg; 1524 int cmd = third&0xff; 1525 abi_long ret = 0; 1526 1527 switch( cmd ) { 1528 case GETVAL: 1529 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1530 ret = get_errno(semctl(first, second, cmd, arg)); 1531 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1532 break; 1533 case SETVAL: 1534 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1535 ret = get_errno(semctl(first, second, cmd, arg)); 1536 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1537 break; 1538 case GETALL: 1539 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1540 ret = get_errno(semctl(first, second, cmd, arg)); 1541 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1542 break; 1543 case SETALL: 1544 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1545 ret = get_errno(semctl(first, second, cmd, arg)); 1546 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1547 break; 1548 case IPC_STAT: 1549 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1550 ret = get_errno(semctl(first, second, cmd, arg)); 1551 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1552 break; 1553 case IPC_SET: 1554 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1555 ret = get_errno(semctl(first, second, cmd, arg)); 1556 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1557 break; 1558 default: 1559 ret = get_errno(semctl(first, second, cmd, arg)); 1560 } 1561 1562 return ret; 1563 } 1564 1565 struct target_msqid_ds 1566 { 1567 struct target_ipc_perm msg_perm; 1568 abi_ulong msg_stime; 1569 abi_ulong __unused1; 1570 abi_ulong msg_rtime; 1571 abi_ulong __unused2; 1572 abi_ulong msg_ctime; 1573 abi_ulong __unused3; 1574 abi_ulong __msg_cbytes; 1575 abi_ulong msg_qnum; 1576 abi_ulong msg_qbytes; 1577 abi_ulong msg_lspid; 1578 abi_ulong msg_lrpid; 1579 abi_ulong __unused4; 1580 abi_ulong __unused5; 1581 }; 1582 1583 static inline void target_to_host_msqid_ds(struct msqid_ds *host_md, 1584 abi_ulong target_addr) 1585 { 1586 struct target_msqid_ds *target_md; 1587 1588 lock_user_struct(target_md, target_addr, 1); 1589 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr); 1590 host_md->msg_stime = tswapl(target_md->msg_stime); 1591 host_md->msg_rtime = tswapl(target_md->msg_rtime); 1592 host_md->msg_ctime = tswapl(target_md->msg_ctime); 1593 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 1594 host_md->msg_qnum = tswapl(target_md->msg_qnum); 1595 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 1596 host_md->msg_lspid = tswapl(target_md->msg_lspid); 1597 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 1598 unlock_user_struct(target_md, target_addr, 0); 1599 } 1600 1601 static inline void host_to_target_msqid_ds(abi_ulong target_addr, 1602 struct msqid_ds *host_md) 1603 { 1604 struct target_msqid_ds *target_md; 1605 1606 lock_user_struct(target_md, target_addr, 0); 1607 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)); 1608 target_md->msg_stime = tswapl(host_md->msg_stime); 1609 target_md->msg_rtime = tswapl(host_md->msg_rtime); 1610 target_md->msg_ctime = tswapl(host_md->msg_ctime); 1611 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 1612 target_md->msg_qnum = tswapl(host_md->msg_qnum); 1613 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 1614 target_md->msg_lspid = tswapl(host_md->msg_lspid); 1615 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 1616 unlock_user_struct(target_md, target_addr, 1); 1617 } 1618 1619 static inline abi_long do_msgctl(int first, int second, abi_long ptr) 1620 { 1621 struct msqid_ds dsarg; 1622 int cmd = second&0xff; 1623 abi_long ret = 0; 1624 switch( cmd ) { 1625 case IPC_STAT: 1626 case IPC_SET: 1627 target_to_host_msqid_ds(&dsarg,ptr); 1628 ret = get_errno(msgctl(first, cmd, &dsarg)); 1629 host_to_target_msqid_ds(ptr,&dsarg); 1630 default: 1631 ret = get_errno(msgctl(first, cmd, &dsarg)); 1632 } 1633 return ret; 1634 } 1635 1636 struct target_msgbuf { 1637 abi_ulong mtype; 1638 char mtext[1]; 1639 }; 1640 1641 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 1642 unsigned int msgsz, 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 host_mb->mtype = tswapl(target_mb->mtype); 1651 memcpy(host_mb->mtext,target_mb->mtext,msgsz); 1652 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 1653 free(host_mb); 1654 unlock_user_struct(target_mb, msgp, 0); 1655 1656 return ret; 1657 } 1658 1659 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 1660 unsigned int msgsz, int msgtype, 1661 int msgflg) 1662 { 1663 struct target_msgbuf *target_mb; 1664 struct msgbuf *host_mb; 1665 abi_long ret = 0; 1666 1667 lock_user_struct(target_mb, msgp, 0); 1668 host_mb = malloc(msgsz+sizeof(long)); 1669 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg)); 1670 if (ret > 0) 1671 memcpy(target_mb->mtext, host_mb->mtext, ret); 1672 target_mb->mtype = tswapl(host_mb->mtype); 1673 free(host_mb); 1674 unlock_user_struct(target_mb, msgp, 0); 1675 1676 return ret; 1677 } 1678 1679 /* ??? This only works with linear mappings. */ 1680 /* do_ipc() must return target values and target errnos. */ 1681 static abi_long do_ipc(unsigned int call, int first, 1682 int second, int third, 1683 abi_long ptr, abi_long fifth) 1684 { 1685 int version; 1686 abi_long ret = 0; 1687 unsigned long raddr; 1688 struct shmid_ds shm_info; 1689 int i; 1690 1691 version = call >> 16; 1692 call &= 0xffff; 1693 1694 switch (call) { 1695 case IPCOP_semop: 1696 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1697 break; 1698 1699 case IPCOP_semget: 1700 ret = get_errno(semget(first, second, third)); 1701 break; 1702 1703 case IPCOP_semctl: 1704 ret = do_semctl(first, second, third, ptr); 1705 break; 1706 1707 case IPCOP_semtimedop: 1708 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1709 ret = -TARGET_ENOSYS; 1710 break; 1711 1712 case IPCOP_msgget: 1713 ret = get_errno(msgget(first, second)); 1714 break; 1715 1716 case IPCOP_msgsnd: 1717 ret = do_msgsnd(first, ptr, second, third); 1718 break; 1719 1720 case IPCOP_msgctl: 1721 ret = do_msgctl(first, second, ptr); 1722 break; 1723 1724 case IPCOP_msgrcv: 1725 { 1726 struct ipc_kludge 1727 { 1728 void *__unbounded msgp; 1729 long int msgtyp; 1730 }; 1731 1732 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1733 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1734 1735 ret = do_msgrcv(first, (long)msgp, second, 0, third); 1736 1737 } 1738 break; 1739 1740 case IPCOP_shmat: 1741 /* SHM_* flags are the same on all linux platforms */ 1742 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1743 if (is_error(ret)) 1744 break; 1745 raddr = ret; 1746 /* find out the length of the shared memory segment */ 1747 1748 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1749 if (is_error(ret)) { 1750 /* can't get length, bail out */ 1751 shmdt((void *) raddr); 1752 break; 1753 } 1754 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1755 PAGE_VALID | PAGE_READ | 1756 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1757 for (i = 0; i < N_SHM_REGIONS; ++i) { 1758 if (shm_regions[i].start == 0) { 1759 shm_regions[i].start = raddr; 1760 shm_regions[i].size = shm_info.shm_segsz; 1761 break; 1762 } 1763 } 1764 if (put_user(raddr, (abi_ulong *)third)) 1765 return -TARGET_EFAULT; 1766 ret = 0; 1767 break; 1768 case IPCOP_shmdt: 1769 for (i = 0; i < N_SHM_REGIONS; ++i) { 1770 if (shm_regions[i].start == ptr) { 1771 shm_regions[i].start = 0; 1772 page_set_flags(ptr, shm_regions[i].size, 0); 1773 break; 1774 } 1775 } 1776 ret = get_errno(shmdt((void *) ptr)); 1777 break; 1778 1779 case IPCOP_shmget: 1780 /* IPC_* flag values are the same on all linux platforms */ 1781 ret = get_errno(shmget(first, second, third)); 1782 break; 1783 1784 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1785 case IPCOP_shmctl: 1786 switch(second) { 1787 case IPC_RMID: 1788 case SHM_LOCK: 1789 case SHM_UNLOCK: 1790 ret = get_errno(shmctl(first, second, NULL)); 1791 break; 1792 default: 1793 goto unimplemented; 1794 } 1795 break; 1796 default: 1797 unimplemented: 1798 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1799 ret = -TARGET_ENOSYS; 1800 break; 1801 } 1802 return ret; 1803 } 1804 #endif 1805 1806 /* kernel structure types definitions */ 1807 #define IFNAMSIZ 16 1808 1809 #define STRUCT(name, list...) STRUCT_ ## name, 1810 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1811 enum { 1812 #include "syscall_types.h" 1813 }; 1814 #undef STRUCT 1815 #undef STRUCT_SPECIAL 1816 1817 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1818 #define STRUCT_SPECIAL(name) 1819 #include "syscall_types.h" 1820 #undef STRUCT 1821 #undef STRUCT_SPECIAL 1822 1823 typedef struct IOCTLEntry { 1824 unsigned int target_cmd; 1825 unsigned int host_cmd; 1826 const char *name; 1827 int access; 1828 const argtype arg_type[5]; 1829 } IOCTLEntry; 1830 1831 #define IOC_R 0x0001 1832 #define IOC_W 0x0002 1833 #define IOC_RW (IOC_R | IOC_W) 1834 1835 #define MAX_STRUCT_SIZE 4096 1836 1837 IOCTLEntry ioctl_entries[] = { 1838 #define IOCTL(cmd, access, types...) \ 1839 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1840 #include "ioctls.h" 1841 { 0, 0, }, 1842 }; 1843 1844 /* ??? Implement proper locking for ioctls. */ 1845 /* do_ioctl() Must return target values and target errnos. */ 1846 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 1847 { 1848 const IOCTLEntry *ie; 1849 const argtype *arg_type; 1850 abi_long ret; 1851 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1852 int target_size; 1853 void *argptr; 1854 1855 ie = ioctl_entries; 1856 for(;;) { 1857 if (ie->target_cmd == 0) { 1858 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 1859 return -TARGET_ENOSYS; 1860 } 1861 if (ie->target_cmd == cmd) 1862 break; 1863 ie++; 1864 } 1865 arg_type = ie->arg_type; 1866 #if defined(DEBUG) 1867 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 1868 #endif 1869 switch(arg_type[0]) { 1870 case TYPE_NULL: 1871 /* no argument */ 1872 ret = get_errno(ioctl(fd, ie->host_cmd)); 1873 break; 1874 case TYPE_PTRVOID: 1875 case TYPE_INT: 1876 /* int argment */ 1877 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1878 break; 1879 case TYPE_PTR: 1880 arg_type++; 1881 target_size = thunk_type_size(arg_type, 0); 1882 switch(ie->access) { 1883 case IOC_R: 1884 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1885 if (!is_error(ret)) { 1886 argptr = lock_user(arg, target_size, 0); 1887 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1888 unlock_user(argptr, arg, target_size); 1889 } 1890 break; 1891 case IOC_W: 1892 argptr = lock_user(arg, target_size, 1); 1893 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1894 unlock_user(argptr, arg, 0); 1895 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1896 break; 1897 default: 1898 case IOC_RW: 1899 argptr = lock_user(arg, target_size, 1); 1900 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1901 unlock_user(argptr, arg, 0); 1902 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1903 if (!is_error(ret)) { 1904 argptr = lock_user(arg, target_size, 0); 1905 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1906 unlock_user(argptr, arg, target_size); 1907 } 1908 break; 1909 } 1910 break; 1911 default: 1912 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 1913 (long)cmd, arg_type[0]); 1914 ret = -TARGET_ENOSYS; 1915 break; 1916 } 1917 return ret; 1918 } 1919 1920 bitmask_transtbl iflag_tbl[] = { 1921 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1922 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1923 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1924 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1925 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1926 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1927 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1928 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1929 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1930 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1931 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1932 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1933 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1934 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1935 { 0, 0, 0, 0 } 1936 }; 1937 1938 bitmask_transtbl oflag_tbl[] = { 1939 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1940 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1941 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1942 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1943 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1944 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1945 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1946 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1947 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1948 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1949 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1950 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1951 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1952 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1953 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1954 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1955 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1956 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1957 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1958 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1959 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1960 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1961 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1962 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1963 { 0, 0, 0, 0 } 1964 }; 1965 1966 bitmask_transtbl cflag_tbl[] = { 1967 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1968 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1969 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1970 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1971 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1972 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1973 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1974 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1975 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1976 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1977 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1978 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1979 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1980 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1981 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1982 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1983 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1984 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1985 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1986 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1987 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1988 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1989 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1990 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1991 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1992 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1993 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1994 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1995 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1996 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1997 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1998 { 0, 0, 0, 0 } 1999 }; 2000 2001 bitmask_transtbl lflag_tbl[] = { 2002 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 2003 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 2004 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 2005 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 2006 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 2007 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 2008 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 2009 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 2010 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 2011 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 2012 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 2013 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 2014 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 2015 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 2016 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 2017 { 0, 0, 0, 0 } 2018 }; 2019 2020 static void target_to_host_termios (void *dst, const void *src) 2021 { 2022 struct host_termios *host = dst; 2023 const struct target_termios *target = src; 2024 2025 host->c_iflag = 2026 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 2027 host->c_oflag = 2028 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 2029 host->c_cflag = 2030 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 2031 host->c_lflag = 2032 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 2033 host->c_line = target->c_line; 2034 2035 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 2036 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 2037 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 2038 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 2039 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 2040 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 2041 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 2042 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 2043 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 2044 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 2045 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 2046 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 2047 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 2048 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 2049 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 2050 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 2051 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 2052 } 2053 2054 static void host_to_target_termios (void *dst, const void *src) 2055 { 2056 struct target_termios *target = dst; 2057 const struct host_termios *host = src; 2058 2059 target->c_iflag = 2060 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 2061 target->c_oflag = 2062 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 2063 target->c_cflag = 2064 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 2065 target->c_lflag = 2066 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 2067 target->c_line = host->c_line; 2068 2069 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 2070 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 2071 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 2072 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 2073 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 2074 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 2075 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 2076 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 2077 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 2078 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 2079 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 2080 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 2081 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 2082 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 2083 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 2084 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 2085 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 2086 } 2087 2088 StructEntry struct_termios_def = { 2089 .convert = { host_to_target_termios, target_to_host_termios }, 2090 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 2091 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 2092 }; 2093 2094 static bitmask_transtbl mmap_flags_tbl[] = { 2095 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 2096 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 2097 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 2098 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 2099 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 2100 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 2101 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 2102 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 2103 { 0, 0, 0, 0 } 2104 }; 2105 2106 static bitmask_transtbl fcntl_flags_tbl[] = { 2107 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 2108 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 2109 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 2110 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 2111 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 2112 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 2113 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 2114 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 2115 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 2116 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 2117 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 2118 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 2119 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 2120 #if defined(O_DIRECT) 2121 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 2122 #endif 2123 { 0, 0, 0, 0 } 2124 }; 2125 2126 #if defined(TARGET_I386) 2127 2128 /* NOTE: there is really one LDT for all the threads */ 2129 uint8_t *ldt_table; 2130 2131 static int read_ldt(abi_ulong ptr, unsigned long bytecount) 2132 { 2133 int size; 2134 void *p; 2135 2136 if (!ldt_table) 2137 return 0; 2138 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 2139 if (size > bytecount) 2140 size = bytecount; 2141 p = lock_user(ptr, size, 0); 2142 /* ??? Shoudl this by byteswapped? */ 2143 memcpy(p, ldt_table, size); 2144 unlock_user(p, ptr, size); 2145 return size; 2146 } 2147 2148 /* XXX: add locking support */ 2149 /* write_ldt() returns host errnos */ 2150 static int write_ldt(CPUX86State *env, 2151 abi_ulong ptr, unsigned long bytecount, int oldmode) 2152 { 2153 struct target_modify_ldt_ldt_s ldt_info; 2154 struct target_modify_ldt_ldt_s *target_ldt_info; 2155 int seg_32bit, contents, read_exec_only, limit_in_pages; 2156 int seg_not_present, useable; 2157 uint32_t *lp, entry_1, entry_2; 2158 2159 if (bytecount != sizeof(ldt_info)) 2160 return -EINVAL; 2161 lock_user_struct(target_ldt_info, ptr, 1); 2162 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2163 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2164 ldt_info.limit = tswap32(target_ldt_info->limit); 2165 ldt_info.flags = tswap32(target_ldt_info->flags); 2166 unlock_user_struct(target_ldt_info, ptr, 0); 2167 2168 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2169 return -EINVAL; 2170 seg_32bit = ldt_info.flags & 1; 2171 contents = (ldt_info.flags >> 1) & 3; 2172 read_exec_only = (ldt_info.flags >> 3) & 1; 2173 limit_in_pages = (ldt_info.flags >> 4) & 1; 2174 seg_not_present = (ldt_info.flags >> 5) & 1; 2175 useable = (ldt_info.flags >> 6) & 1; 2176 2177 if (contents == 3) { 2178 if (oldmode) 2179 return -EINVAL; 2180 if (seg_not_present == 0) 2181 return -EINVAL; 2182 } 2183 /* allocate the LDT */ 2184 if (!ldt_table) { 2185 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2186 if (!ldt_table) 2187 return -ENOMEM; 2188 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2189 env->ldt.base = h2g(ldt_table); 2190 env->ldt.limit = 0xffff; 2191 } 2192 2193 /* NOTE: same code as Linux kernel */ 2194 /* Allow LDTs to be cleared by the user. */ 2195 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2196 if (oldmode || 2197 (contents == 0 && 2198 read_exec_only == 1 && 2199 seg_32bit == 0 && 2200 limit_in_pages == 0 && 2201 seg_not_present == 1 && 2202 useable == 0 )) { 2203 entry_1 = 0; 2204 entry_2 = 0; 2205 goto install; 2206 } 2207 } 2208 2209 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2210 (ldt_info.limit & 0x0ffff); 2211 entry_2 = (ldt_info.base_addr & 0xff000000) | 2212 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2213 (ldt_info.limit & 0xf0000) | 2214 ((read_exec_only ^ 1) << 9) | 2215 (contents << 10) | 2216 ((seg_not_present ^ 1) << 15) | 2217 (seg_32bit << 22) | 2218 (limit_in_pages << 23) | 2219 0x7000; 2220 if (!oldmode) 2221 entry_2 |= (useable << 20); 2222 2223 /* Install the new entry ... */ 2224 install: 2225 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2226 lp[0] = tswap32(entry_1); 2227 lp[1] = tswap32(entry_2); 2228 return 0; 2229 } 2230 2231 /* specific and weird i386 syscalls */ 2232 /* do_modify_ldt() returns host errnos (it is inconsistent with the 2233 other do_*() functions which return target errnos). */ 2234 int do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, unsigned long bytecount) 2235 { 2236 int ret = -ENOSYS; 2237 2238 switch (func) { 2239 case 0: 2240 ret = read_ldt(ptr, bytecount); 2241 break; 2242 case 1: 2243 ret = write_ldt(env, ptr, bytecount, 1); 2244 break; 2245 case 0x11: 2246 ret = write_ldt(env, ptr, bytecount, 0); 2247 break; 2248 } 2249 return ret; 2250 } 2251 2252 #endif /* defined(TARGET_I386) */ 2253 2254 /* this stack is the equivalent of the kernel stack associated with a 2255 thread/process */ 2256 #define NEW_STACK_SIZE 8192 2257 2258 static int clone_func(void *arg) 2259 { 2260 CPUState *env = arg; 2261 cpu_loop(env); 2262 /* never exits */ 2263 return 0; 2264 } 2265 2266 /* do_fork() Must return host values and target errnos (unlike most 2267 do_*() functions). */ 2268 int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp) 2269 { 2270 int ret; 2271 TaskState *ts; 2272 uint8_t *new_stack; 2273 CPUState *new_env; 2274 2275 if (flags & CLONE_VM) { 2276 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2277 memset(ts, 0, sizeof(TaskState)); 2278 new_stack = ts->stack; 2279 ts->used = 1; 2280 /* add in task state list */ 2281 ts->next = first_task_state; 2282 first_task_state = ts; 2283 /* we create a new CPU instance. */ 2284 new_env = cpu_copy(env); 2285 #if defined(TARGET_I386) 2286 if (!newsp) 2287 newsp = env->regs[R_ESP]; 2288 new_env->regs[R_ESP] = newsp; 2289 new_env->regs[R_EAX] = 0; 2290 #elif defined(TARGET_ARM) 2291 if (!newsp) 2292 newsp = env->regs[13]; 2293 new_env->regs[13] = newsp; 2294 new_env->regs[0] = 0; 2295 #elif defined(TARGET_SPARC) 2296 if (!newsp) 2297 newsp = env->regwptr[22]; 2298 new_env->regwptr[22] = newsp; 2299 new_env->regwptr[0] = 0; 2300 /* XXXXX */ 2301 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2302 #elif defined(TARGET_M68K) 2303 if (!newsp) 2304 newsp = env->aregs[7]; 2305 new_env->aregs[7] = newsp; 2306 new_env->dregs[0] = 0; 2307 /* ??? is this sufficient? */ 2308 #elif defined(TARGET_MIPS) 2309 if (!newsp) 2310 newsp = env->gpr[29][env->current_tc]; 2311 new_env->gpr[29][env->current_tc] = newsp; 2312 #elif defined(TARGET_PPC) 2313 if (!newsp) 2314 newsp = env->gpr[1]; 2315 new_env->gpr[1] = newsp; 2316 { 2317 int i; 2318 for (i = 7; i < 32; i++) 2319 new_env->gpr[i] = 0; 2320 } 2321 #elif defined(TARGET_SH4) 2322 if (!newsp) 2323 newsp = env->gregs[15]; 2324 new_env->gregs[15] = newsp; 2325 /* XXXXX */ 2326 #elif defined(TARGET_ALPHA) 2327 if (!newsp) 2328 newsp = env->ir[30]; 2329 new_env->ir[30] = newsp; 2330 /* ? */ 2331 { 2332 int i; 2333 for (i = 7; i < 30; i++) 2334 new_env->ir[i] = 0; 2335 } 2336 #elif defined(TARGET_CRIS) 2337 if (!newsp) 2338 newsp = env->regs[14]; 2339 new_env->regs[14] = newsp; 2340 #else 2341 #error unsupported target CPU 2342 #endif 2343 new_env->opaque = ts; 2344 #ifdef __ia64__ 2345 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2346 #else 2347 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2348 #endif 2349 } else { 2350 /* if no CLONE_VM, we consider it is a fork */ 2351 if ((flags & ~CSIGNAL) != 0) 2352 return -EINVAL; 2353 ret = fork(); 2354 } 2355 return ret; 2356 } 2357 2358 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 2359 { 2360 struct flock fl; 2361 struct target_flock *target_fl; 2362 struct flock64 fl64; 2363 struct target_flock64 *target_fl64; 2364 abi_long ret; 2365 2366 switch(cmd) { 2367 case TARGET_F_GETLK: 2368 lock_user_struct(target_fl, arg, 1); 2369 fl.l_type = tswap16(target_fl->l_type); 2370 fl.l_whence = tswap16(target_fl->l_whence); 2371 fl.l_start = tswapl(target_fl->l_start); 2372 fl.l_len = tswapl(target_fl->l_len); 2373 fl.l_pid = tswapl(target_fl->l_pid); 2374 unlock_user_struct(target_fl, arg, 0); 2375 ret = fcntl(fd, cmd, &fl); 2376 if (ret == 0) { 2377 lock_user_struct(target_fl, arg, 0); 2378 target_fl->l_type = tswap16(fl.l_type); 2379 target_fl->l_whence = tswap16(fl.l_whence); 2380 target_fl->l_start = tswapl(fl.l_start); 2381 target_fl->l_len = tswapl(fl.l_len); 2382 target_fl->l_pid = tswapl(fl.l_pid); 2383 unlock_user_struct(target_fl, arg, 1); 2384 } 2385 break; 2386 2387 case TARGET_F_SETLK: 2388 case TARGET_F_SETLKW: 2389 lock_user_struct(target_fl, arg, 1); 2390 fl.l_type = tswap16(target_fl->l_type); 2391 fl.l_whence = tswap16(target_fl->l_whence); 2392 fl.l_start = tswapl(target_fl->l_start); 2393 fl.l_len = tswapl(target_fl->l_len); 2394 fl.l_pid = tswapl(target_fl->l_pid); 2395 unlock_user_struct(target_fl, arg, 0); 2396 ret = fcntl(fd, cmd, &fl); 2397 break; 2398 2399 case TARGET_F_GETLK64: 2400 lock_user_struct(target_fl64, arg, 1); 2401 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2402 fl64.l_whence = tswap16(target_fl64->l_whence); 2403 fl64.l_start = tswapl(target_fl64->l_start); 2404 fl64.l_len = tswapl(target_fl64->l_len); 2405 fl64.l_pid = tswap16(target_fl64->l_pid); 2406 unlock_user_struct(target_fl64, arg, 0); 2407 ret = fcntl(fd, cmd >> 1, &fl64); 2408 if (ret == 0) { 2409 lock_user_struct(target_fl64, arg, 0); 2410 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2411 target_fl64->l_whence = tswap16(fl64.l_whence); 2412 target_fl64->l_start = tswapl(fl64.l_start); 2413 target_fl64->l_len = tswapl(fl64.l_len); 2414 target_fl64->l_pid = tswapl(fl64.l_pid); 2415 unlock_user_struct(target_fl64, arg, 1); 2416 } 2417 break; 2418 case TARGET_F_SETLK64: 2419 case TARGET_F_SETLKW64: 2420 lock_user_struct(target_fl64, arg, 1); 2421 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2422 fl64.l_whence = tswap16(target_fl64->l_whence); 2423 fl64.l_start = tswapl(target_fl64->l_start); 2424 fl64.l_len = tswapl(target_fl64->l_len); 2425 fl64.l_pid = tswap16(target_fl64->l_pid); 2426 unlock_user_struct(target_fl64, arg, 0); 2427 ret = fcntl(fd, cmd >> 1, &fl64); 2428 break; 2429 2430 case F_GETFL: 2431 ret = fcntl(fd, cmd, arg); 2432 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2433 break; 2434 2435 case F_SETFL: 2436 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 2437 break; 2438 2439 default: 2440 ret = fcntl(fd, cmd, arg); 2441 break; 2442 } 2443 return ret; 2444 } 2445 2446 #ifdef USE_UID16 2447 2448 static inline int high2lowuid(int uid) 2449 { 2450 if (uid > 65535) 2451 return 65534; 2452 else 2453 return uid; 2454 } 2455 2456 static inline int high2lowgid(int gid) 2457 { 2458 if (gid > 65535) 2459 return 65534; 2460 else 2461 return gid; 2462 } 2463 2464 static inline int low2highuid(int uid) 2465 { 2466 if ((int16_t)uid == -1) 2467 return -1; 2468 else 2469 return uid; 2470 } 2471 2472 static inline int low2highgid(int gid) 2473 { 2474 if ((int16_t)gid == -1) 2475 return -1; 2476 else 2477 return gid; 2478 } 2479 2480 #endif /* USE_UID16 */ 2481 2482 void syscall_init(void) 2483 { 2484 IOCTLEntry *ie; 2485 const argtype *arg_type; 2486 int size; 2487 int i; 2488 2489 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2490 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2491 #include "syscall_types.h" 2492 #undef STRUCT 2493 #undef STRUCT_SPECIAL 2494 2495 /* we patch the ioctl size if necessary. We rely on the fact that 2496 no ioctl has all the bits at '1' in the size field */ 2497 ie = ioctl_entries; 2498 while (ie->target_cmd != 0) { 2499 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2500 TARGET_IOC_SIZEMASK) { 2501 arg_type = ie->arg_type; 2502 if (arg_type[0] != TYPE_PTR) { 2503 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2504 ie->target_cmd); 2505 exit(1); 2506 } 2507 arg_type++; 2508 size = thunk_type_size(arg_type, 0); 2509 ie->target_cmd = (ie->target_cmd & 2510 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2511 (size << TARGET_IOC_SIZESHIFT); 2512 } 2513 2514 /* Build target_to_host_errno_table[] table from 2515 * host_to_target_errno_table[]. */ 2516 for (i=0; i < ERRNO_TABLE_SIZE; i++) 2517 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 2518 2519 /* automatic consistency check if same arch */ 2520 #if defined(__i386__) && defined(TARGET_I386) 2521 if (ie->target_cmd != ie->host_cmd) { 2522 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2523 ie->target_cmd, ie->host_cmd); 2524 } 2525 #endif 2526 ie++; 2527 } 2528 } 2529 2530 #if TARGET_ABI_BITS == 32 2531 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2532 { 2533 #ifdef TARGET_WORDS_BIG_ENDIAN 2534 return ((uint64_t)word0 << 32) | word1; 2535 #else 2536 return ((uint64_t)word1 << 32) | word0; 2537 #endif 2538 } 2539 #else /* TARGET_ABI_BITS == 32 */ 2540 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 2541 { 2542 return word0; 2543 } 2544 #endif /* TARGET_ABI_BITS != 32 */ 2545 2546 #ifdef TARGET_NR_truncate64 2547 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 2548 abi_long arg2, 2549 abi_long arg3, 2550 abi_long arg4) 2551 { 2552 #ifdef TARGET_ARM 2553 if (((CPUARMState *)cpu_env)->eabi) 2554 { 2555 arg2 = arg3; 2556 arg3 = arg4; 2557 } 2558 #endif 2559 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 2560 } 2561 #endif 2562 2563 #ifdef TARGET_NR_ftruncate64 2564 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 2565 abi_long arg2, 2566 abi_long arg3, 2567 abi_long arg4) 2568 { 2569 #ifdef TARGET_ARM 2570 if (((CPUARMState *)cpu_env)->eabi) 2571 { 2572 arg2 = arg3; 2573 arg3 = arg4; 2574 } 2575 #endif 2576 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 2577 } 2578 #endif 2579 2580 static inline void target_to_host_timespec(struct timespec *host_ts, 2581 abi_ulong target_addr) 2582 { 2583 struct target_timespec *target_ts; 2584 2585 lock_user_struct(target_ts, target_addr, 1); 2586 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2587 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2588 unlock_user_struct(target_ts, target_addr, 0); 2589 } 2590 2591 static inline void host_to_target_timespec(abi_ulong target_addr, 2592 struct timespec *host_ts) 2593 { 2594 struct target_timespec *target_ts; 2595 2596 lock_user_struct(target_ts, target_addr, 0); 2597 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2598 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2599 unlock_user_struct(target_ts, target_addr, 1); 2600 } 2601 2602 /* do_syscall() should always have a single exit point at the end so 2603 that actions, such as logging of syscall results, can be performed. 2604 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 2605 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 2606 abi_long arg2, abi_long arg3, abi_long arg4, 2607 abi_long arg5, abi_long arg6) 2608 { 2609 abi_long ret; 2610 struct stat st; 2611 struct statfs stfs; 2612 void *p; 2613 2614 #ifdef DEBUG 2615 gemu_log("syscall %d", num); 2616 #endif 2617 if(do_strace) 2618 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 2619 2620 switch(num) { 2621 case TARGET_NR_exit: 2622 #ifdef HAVE_GPROF 2623 _mcleanup(); 2624 #endif 2625 gdb_exit(cpu_env, arg1); 2626 /* XXX: should free thread stack and CPU env */ 2627 _exit(arg1); 2628 ret = 0; /* avoid warning */ 2629 break; 2630 case TARGET_NR_read: 2631 page_unprotect_range(arg2, arg3); 2632 p = lock_user(arg2, arg3, 0); 2633 ret = get_errno(read(arg1, p, arg3)); 2634 unlock_user(p, arg2, ret); 2635 break; 2636 case TARGET_NR_write: 2637 p = lock_user(arg2, arg3, 1); 2638 ret = get_errno(write(arg1, p, arg3)); 2639 unlock_user(p, arg2, 0); 2640 break; 2641 case TARGET_NR_open: 2642 p = lock_user_string(arg1); 2643 ret = get_errno(open(path(p), 2644 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2645 arg3)); 2646 unlock_user(p, arg1, 0); 2647 break; 2648 #if defined(TARGET_NR_openat) && defined(__NR_openat) 2649 case TARGET_NR_openat: 2650 if (!arg2) { 2651 ret = -TARGET_EFAULT; 2652 goto fail; 2653 } 2654 p = lock_user_string(arg2); 2655 if (!access_ok(VERIFY_READ, p, 1)) 2656 /* Don't "goto fail" so that cleanup can happen. */ 2657 ret = -TARGET_EFAULT; 2658 else 2659 ret = get_errno(sys_openat(arg1, 2660 path(p), 2661 target_to_host_bitmask(arg3, fcntl_flags_tbl), 2662 arg4)); 2663 if (p) 2664 unlock_user(p, arg2, 0); 2665 break; 2666 #endif 2667 case TARGET_NR_close: 2668 ret = get_errno(close(arg1)); 2669 break; 2670 case TARGET_NR_brk: 2671 ret = do_brk(arg1); 2672 break; 2673 case TARGET_NR_fork: 2674 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2675 break; 2676 #ifdef TARGET_NR_waitpid 2677 case TARGET_NR_waitpid: 2678 { 2679 int status; 2680 ret = get_errno(waitpid(arg1, &status, arg3)); 2681 if (!is_error(ret) && arg2) 2682 tput32(arg2, status); 2683 } 2684 break; 2685 #endif 2686 #ifdef TARGET_NR_creat /* not on alpha */ 2687 case TARGET_NR_creat: 2688 p = lock_user_string(arg1); 2689 ret = get_errno(creat(p, arg2)); 2690 unlock_user(p, arg1, 0); 2691 break; 2692 #endif 2693 case TARGET_NR_link: 2694 { 2695 void * p2; 2696 p = lock_user_string(arg1); 2697 p2 = lock_user_string(arg2); 2698 ret = get_errno(link(p, p2)); 2699 unlock_user(p2, arg2, 0); 2700 unlock_user(p, arg1, 0); 2701 } 2702 break; 2703 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 2704 case TARGET_NR_linkat: 2705 if (!arg2 || !arg4) { 2706 ret = -TARGET_EFAULT; 2707 goto fail; 2708 } 2709 { 2710 void * p2 = NULL; 2711 p = lock_user_string(arg2); 2712 p2 = lock_user_string(arg4); 2713 if (!access_ok(VERIFY_READ, p, 1) 2714 || !access_ok(VERIFY_READ, p2, 1)) 2715 /* Don't "goto fail" so that cleanup can happen. */ 2716 ret = -TARGET_EFAULT; 2717 else 2718 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 2719 if (p2) 2720 unlock_user(p, arg2, 0); 2721 if (p) 2722 unlock_user(p2, arg4, 0); 2723 } 2724 break; 2725 #endif 2726 case TARGET_NR_unlink: 2727 p = lock_user_string(arg1); 2728 ret = get_errno(unlink(p)); 2729 unlock_user(p, arg1, 0); 2730 break; 2731 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 2732 case TARGET_NR_unlinkat: 2733 if (!arg2) { 2734 ret = -TARGET_EFAULT; 2735 goto fail; 2736 } 2737 p = lock_user_string(arg2); 2738 if (!access_ok(VERIFY_READ, p, 1)) 2739 /* Don't "goto fail" so that cleanup can happen. */ 2740 ret = -TARGET_EFAULT; 2741 else 2742 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 2743 if (p) 2744 unlock_user(p, arg2, 0); 2745 break; 2746 #endif 2747 case TARGET_NR_execve: 2748 { 2749 char **argp, **envp; 2750 int argc, envc; 2751 abi_ulong gp; 2752 abi_ulong guest_argp; 2753 abi_ulong guest_envp; 2754 abi_ulong addr; 2755 char **q; 2756 2757 argc = 0; 2758 guest_argp = arg2; 2759 for (gp = guest_argp; tgetl(gp); gp++) 2760 argc++; 2761 envc = 0; 2762 guest_envp = arg3; 2763 for (gp = guest_envp; tgetl(gp); gp++) 2764 envc++; 2765 2766 argp = alloca((argc + 1) * sizeof(void *)); 2767 envp = alloca((envc + 1) * sizeof(void *)); 2768 2769 for (gp = guest_argp, q = argp; ; 2770 gp += sizeof(abi_ulong), q++) { 2771 addr = tgetl(gp); 2772 if (!addr) 2773 break; 2774 *q = lock_user_string(addr); 2775 } 2776 *q = NULL; 2777 2778 for (gp = guest_envp, q = envp; ; 2779 gp += sizeof(abi_ulong), q++) { 2780 addr = tgetl(gp); 2781 if (!addr) 2782 break; 2783 *q = lock_user_string(addr); 2784 } 2785 *q = NULL; 2786 2787 p = lock_user_string(arg1); 2788 ret = get_errno(execve(p, argp, envp)); 2789 unlock_user(p, arg1, 0); 2790 2791 for (gp = guest_argp, q = argp; *q; 2792 gp += sizeof(abi_ulong), q++) { 2793 addr = tgetl(gp); 2794 unlock_user(*q, addr, 0); 2795 } 2796 for (gp = guest_envp, q = envp; *q; 2797 gp += sizeof(abi_ulong), q++) { 2798 addr = tgetl(gp); 2799 unlock_user(*q, addr, 0); 2800 } 2801 } 2802 break; 2803 case TARGET_NR_chdir: 2804 p = lock_user_string(arg1); 2805 ret = get_errno(chdir(p)); 2806 unlock_user(p, arg1, 0); 2807 break; 2808 #ifdef TARGET_NR_time 2809 case TARGET_NR_time: 2810 { 2811 time_t host_time; 2812 ret = get_errno(time(&host_time)); 2813 if (!is_error(ret) && arg1) 2814 tputl(arg1, host_time); 2815 } 2816 break; 2817 #endif 2818 case TARGET_NR_mknod: 2819 p = lock_user_string(arg1); 2820 ret = get_errno(mknod(p, arg2, arg3)); 2821 unlock_user(p, arg1, 0); 2822 break; 2823 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 2824 case TARGET_NR_mknodat: 2825 if (!arg2) { 2826 ret = -TARGET_EFAULT; 2827 goto fail; 2828 } 2829 p = lock_user_string(arg2); 2830 if (!access_ok(VERIFY_READ, p, 1)) 2831 /* Don't "goto fail" so that cleanup can happen. */ 2832 ret = -TARGET_EFAULT; 2833 else 2834 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 2835 if (p) 2836 unlock_user(p, arg2, 0); 2837 break; 2838 #endif 2839 case TARGET_NR_chmod: 2840 p = lock_user_string(arg1); 2841 ret = get_errno(chmod(p, arg2)); 2842 unlock_user(p, arg1, 0); 2843 break; 2844 #ifdef TARGET_NR_break 2845 case TARGET_NR_break: 2846 goto unimplemented; 2847 #endif 2848 #ifdef TARGET_NR_oldstat 2849 case TARGET_NR_oldstat: 2850 goto unimplemented; 2851 #endif 2852 case TARGET_NR_lseek: 2853 ret = get_errno(lseek(arg1, arg2, arg3)); 2854 break; 2855 #ifdef TARGET_NR_getxpid 2856 case TARGET_NR_getxpid: 2857 #else 2858 case TARGET_NR_getpid: 2859 #endif 2860 ret = get_errno(getpid()); 2861 break; 2862 case TARGET_NR_mount: 2863 { 2864 /* need to look at the data field */ 2865 void *p2, *p3; 2866 p = lock_user_string(arg1); 2867 p2 = lock_user_string(arg2); 2868 p3 = lock_user_string(arg3); 2869 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2870 unlock_user(p, arg1, 0); 2871 unlock_user(p2, arg2, 0); 2872 unlock_user(p3, arg3, 0); 2873 break; 2874 } 2875 #ifdef TARGET_NR_umount 2876 case TARGET_NR_umount: 2877 p = lock_user_string(arg1); 2878 ret = get_errno(umount(p)); 2879 unlock_user(p, arg1, 0); 2880 break; 2881 #endif 2882 #ifdef TARGET_NR_stime /* not on alpha */ 2883 case TARGET_NR_stime: 2884 { 2885 time_t host_time; 2886 host_time = tgetl(arg1); 2887 ret = get_errno(stime(&host_time)); 2888 } 2889 break; 2890 #endif 2891 case TARGET_NR_ptrace: 2892 goto unimplemented; 2893 #ifdef TARGET_NR_alarm /* not on alpha */ 2894 case TARGET_NR_alarm: 2895 ret = alarm(arg1); 2896 break; 2897 #endif 2898 #ifdef TARGET_NR_oldfstat 2899 case TARGET_NR_oldfstat: 2900 goto unimplemented; 2901 #endif 2902 #ifdef TARGET_NR_pause /* not on alpha */ 2903 case TARGET_NR_pause: 2904 ret = get_errno(pause()); 2905 break; 2906 #endif 2907 #ifdef TARGET_NR_utime 2908 case TARGET_NR_utime: 2909 { 2910 struct utimbuf tbuf, *host_tbuf; 2911 struct target_utimbuf *target_tbuf; 2912 if (arg2) { 2913 lock_user_struct(target_tbuf, arg2, 1); 2914 tbuf.actime = tswapl(target_tbuf->actime); 2915 tbuf.modtime = tswapl(target_tbuf->modtime); 2916 unlock_user_struct(target_tbuf, arg2, 0); 2917 host_tbuf = &tbuf; 2918 } else { 2919 host_tbuf = NULL; 2920 } 2921 p = lock_user_string(arg1); 2922 ret = get_errno(utime(p, host_tbuf)); 2923 unlock_user(p, arg1, 0); 2924 } 2925 break; 2926 #endif 2927 case TARGET_NR_utimes: 2928 { 2929 struct timeval *tvp, tv[2]; 2930 if (arg2) { 2931 target_to_host_timeval(&tv[0], arg2); 2932 target_to_host_timeval(&tv[1], 2933 arg2 + sizeof (struct target_timeval)); 2934 tvp = tv; 2935 } else { 2936 tvp = NULL; 2937 } 2938 p = lock_user_string(arg1); 2939 ret = get_errno(utimes(p, tvp)); 2940 unlock_user(p, arg1, 0); 2941 } 2942 break; 2943 #ifdef TARGET_NR_stty 2944 case TARGET_NR_stty: 2945 goto unimplemented; 2946 #endif 2947 #ifdef TARGET_NR_gtty 2948 case TARGET_NR_gtty: 2949 goto unimplemented; 2950 #endif 2951 case TARGET_NR_access: 2952 p = lock_user_string(arg1); 2953 ret = get_errno(access(p, arg2)); 2954 unlock_user(p, arg1, 0); 2955 break; 2956 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 2957 case TARGET_NR_faccessat: 2958 if (!arg2) { 2959 ret = -TARGET_EFAULT; 2960 goto fail; 2961 } 2962 p = lock_user_string(arg2); 2963 if (!access_ok(VERIFY_READ, p, 1)) 2964 /* Don't "goto fail" so that cleanup can happen. */ 2965 ret = -TARGET_EFAULT; 2966 else 2967 ret = get_errno(sys_faccessat(arg1, p, arg3, arg4)); 2968 if (p) 2969 unlock_user(p, arg2, 0); 2970 break; 2971 #endif 2972 #ifdef TARGET_NR_nice /* not on alpha */ 2973 case TARGET_NR_nice: 2974 ret = get_errno(nice(arg1)); 2975 break; 2976 #endif 2977 #ifdef TARGET_NR_ftime 2978 case TARGET_NR_ftime: 2979 goto unimplemented; 2980 #endif 2981 case TARGET_NR_sync: 2982 sync(); 2983 ret = 0; 2984 break; 2985 case TARGET_NR_kill: 2986 ret = get_errno(kill(arg1, arg2)); 2987 break; 2988 case TARGET_NR_rename: 2989 { 2990 void *p2; 2991 p = lock_user_string(arg1); 2992 p2 = lock_user_string(arg2); 2993 ret = get_errno(rename(p, p2)); 2994 unlock_user(p2, arg2, 0); 2995 unlock_user(p, arg1, 0); 2996 } 2997 break; 2998 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 2999 case TARGET_NR_renameat: 3000 if (!arg2 || !arg4) { 3001 ret = -TARGET_EFAULT; 3002 goto fail; 3003 } 3004 { 3005 void *p2 = NULL; 3006 p = lock_user_string(arg2); 3007 p2 = lock_user_string(arg4); 3008 if (!access_ok(VERIFY_READ, p, 1) 3009 || !access_ok(VERIFY_READ, p2, 1)) 3010 /* Don't "goto fail" so that cleanup can happen. */ 3011 ret = -TARGET_EFAULT; 3012 else 3013 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 3014 if (p2) 3015 unlock_user(p2, arg4, 0); 3016 if (p) 3017 unlock_user(p, arg2, 0); 3018 } 3019 break; 3020 #endif 3021 case TARGET_NR_mkdir: 3022 p = lock_user_string(arg1); 3023 ret = get_errno(mkdir(p, arg2)); 3024 unlock_user(p, arg1, 0); 3025 break; 3026 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 3027 case TARGET_NR_mkdirat: 3028 if (!arg2) { 3029 ret = -TARGET_EFAULT; 3030 goto fail; 3031 } 3032 p = lock_user_string(arg2); 3033 if (!access_ok(VERIFY_READ, p, 1)) 3034 /* Don't "goto fail" so that cleanup can happen. */ 3035 ret = -TARGET_EFAULT; 3036 else 3037 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 3038 if (p) 3039 unlock_user(p, arg2, 0); 3040 break; 3041 #endif 3042 case TARGET_NR_rmdir: 3043 p = lock_user_string(arg1); 3044 ret = get_errno(rmdir(p)); 3045 unlock_user(p, arg1, 0); 3046 break; 3047 case TARGET_NR_dup: 3048 ret = get_errno(dup(arg1)); 3049 break; 3050 case TARGET_NR_pipe: 3051 { 3052 int host_pipe[2]; 3053 ret = get_errno(pipe(host_pipe)); 3054 if (!is_error(ret)) { 3055 #if defined(TARGET_MIPS) 3056 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 3057 env->gpr[3][env->current_tc] = host_pipe[1]; 3058 ret = host_pipe[0]; 3059 #else 3060 tput32(arg1, host_pipe[0]); 3061 tput32(arg1 + 4, host_pipe[1]); 3062 #endif 3063 } 3064 } 3065 break; 3066 case TARGET_NR_times: 3067 { 3068 struct target_tms *tmsp; 3069 struct tms tms; 3070 ret = get_errno(times(&tms)); 3071 if (arg1) { 3072 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 3073 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 3074 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 3075 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 3076 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 3077 } 3078 if (!is_error(ret)) 3079 ret = host_to_target_clock_t(ret); 3080 } 3081 break; 3082 #ifdef TARGET_NR_prof 3083 case TARGET_NR_prof: 3084 goto unimplemented; 3085 #endif 3086 #ifdef TARGET_NR_signal 3087 case TARGET_NR_signal: 3088 goto unimplemented; 3089 #endif 3090 case TARGET_NR_acct: 3091 p = lock_user_string(arg1); 3092 ret = get_errno(acct(path(p))); 3093 unlock_user(p, arg1, 0); 3094 break; 3095 #ifdef TARGET_NR_umount2 /* not on alpha */ 3096 case TARGET_NR_umount2: 3097 p = lock_user_string(arg1); 3098 ret = get_errno(umount2(p, arg2)); 3099 unlock_user(p, arg1, 0); 3100 break; 3101 #endif 3102 #ifdef TARGET_NR_lock 3103 case TARGET_NR_lock: 3104 goto unimplemented; 3105 #endif 3106 case TARGET_NR_ioctl: 3107 ret = do_ioctl(arg1, arg2, arg3); 3108 break; 3109 case TARGET_NR_fcntl: 3110 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 3111 break; 3112 #ifdef TARGET_NR_mpx 3113 case TARGET_NR_mpx: 3114 goto unimplemented; 3115 #endif 3116 case TARGET_NR_setpgid: 3117 ret = get_errno(setpgid(arg1, arg2)); 3118 break; 3119 #ifdef TARGET_NR_ulimit 3120 case TARGET_NR_ulimit: 3121 goto unimplemented; 3122 #endif 3123 #ifdef TARGET_NR_oldolduname 3124 case TARGET_NR_oldolduname: 3125 goto unimplemented; 3126 #endif 3127 case TARGET_NR_umask: 3128 ret = get_errno(umask(arg1)); 3129 break; 3130 case TARGET_NR_chroot: 3131 p = lock_user_string(arg1); 3132 ret = get_errno(chroot(p)); 3133 unlock_user(p, arg1, 0); 3134 break; 3135 case TARGET_NR_ustat: 3136 goto unimplemented; 3137 case TARGET_NR_dup2: 3138 ret = get_errno(dup2(arg1, arg2)); 3139 break; 3140 #ifdef TARGET_NR_getppid /* not on alpha */ 3141 case TARGET_NR_getppid: 3142 ret = get_errno(getppid()); 3143 break; 3144 #endif 3145 case TARGET_NR_getpgrp: 3146 ret = get_errno(getpgrp()); 3147 break; 3148 case TARGET_NR_setsid: 3149 ret = get_errno(setsid()); 3150 break; 3151 #ifdef TARGET_NR_sigaction 3152 case TARGET_NR_sigaction: 3153 { 3154 #if !defined(TARGET_MIPS) 3155 struct target_old_sigaction *old_act; 3156 struct target_sigaction act, oact, *pact; 3157 if (arg2) { 3158 lock_user_struct(old_act, arg2, 1); 3159 act._sa_handler = old_act->_sa_handler; 3160 target_siginitset(&act.sa_mask, old_act->sa_mask); 3161 act.sa_flags = old_act->sa_flags; 3162 act.sa_restorer = old_act->sa_restorer; 3163 unlock_user_struct(old_act, arg2, 0); 3164 pact = &act; 3165 } else { 3166 pact = NULL; 3167 } 3168 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3169 if (!is_error(ret) && arg3) { 3170 lock_user_struct(old_act, arg3, 0); 3171 old_act->_sa_handler = oact._sa_handler; 3172 old_act->sa_mask = oact.sa_mask.sig[0]; 3173 old_act->sa_flags = oact.sa_flags; 3174 old_act->sa_restorer = oact.sa_restorer; 3175 unlock_user_struct(old_act, arg3, 1); 3176 } 3177 #else 3178 struct target_sigaction act, oact, *pact, *old_act; 3179 3180 if (arg2) { 3181 lock_user_struct(old_act, arg2, 1); 3182 act._sa_handler = old_act->_sa_handler; 3183 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 3184 act.sa_flags = old_act->sa_flags; 3185 unlock_user_struct(old_act, arg2, 0); 3186 pact = &act; 3187 } else { 3188 pact = NULL; 3189 } 3190 3191 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3192 3193 if (!is_error(ret) && arg3) { 3194 lock_user_struct(old_act, arg3, 0); 3195 old_act->_sa_handler = oact._sa_handler; 3196 old_act->sa_flags = oact.sa_flags; 3197 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 3198 old_act->sa_mask.sig[1] = 0; 3199 old_act->sa_mask.sig[2] = 0; 3200 old_act->sa_mask.sig[3] = 0; 3201 unlock_user_struct(old_act, arg3, 1); 3202 } 3203 #endif 3204 } 3205 break; 3206 #endif 3207 case TARGET_NR_rt_sigaction: 3208 { 3209 struct target_sigaction *act; 3210 struct target_sigaction *oact; 3211 3212 if (arg2) 3213 lock_user_struct(act, arg2, 1); 3214 else 3215 act = NULL; 3216 if (arg3) 3217 lock_user_struct(oact, arg3, 0); 3218 else 3219 oact = NULL; 3220 ret = get_errno(do_sigaction(arg1, act, oact)); 3221 if (arg2) 3222 unlock_user_struct(act, arg2, 0); 3223 if (arg3) 3224 unlock_user_struct(oact, arg3, 1); 3225 } 3226 break; 3227 #ifdef TARGET_NR_sgetmask /* not on alpha */ 3228 case TARGET_NR_sgetmask: 3229 { 3230 sigset_t cur_set; 3231 abi_ulong target_set; 3232 sigprocmask(0, NULL, &cur_set); 3233 host_to_target_old_sigset(&target_set, &cur_set); 3234 ret = target_set; 3235 } 3236 break; 3237 #endif 3238 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3239 case TARGET_NR_ssetmask: 3240 { 3241 sigset_t set, oset, cur_set; 3242 abi_ulong target_set = arg1; 3243 sigprocmask(0, NULL, &cur_set); 3244 target_to_host_old_sigset(&set, &target_set); 3245 sigorset(&set, &set, &cur_set); 3246 sigprocmask(SIG_SETMASK, &set, &oset); 3247 host_to_target_old_sigset(&target_set, &oset); 3248 ret = target_set; 3249 } 3250 break; 3251 #endif 3252 #ifdef TARGET_NR_sigprocmask 3253 case TARGET_NR_sigprocmask: 3254 { 3255 int how = arg1; 3256 sigset_t set, oldset, *set_ptr; 3257 3258 if (arg2) { 3259 switch(how) { 3260 case TARGET_SIG_BLOCK: 3261 how = SIG_BLOCK; 3262 break; 3263 case TARGET_SIG_UNBLOCK: 3264 how = SIG_UNBLOCK; 3265 break; 3266 case TARGET_SIG_SETMASK: 3267 how = SIG_SETMASK; 3268 break; 3269 default: 3270 ret = -TARGET_EINVAL; 3271 goto fail; 3272 } 3273 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3274 target_to_host_old_sigset(&set, p); 3275 unlock_user(p, arg2, 0); 3276 set_ptr = &set; 3277 } else { 3278 how = 0; 3279 set_ptr = NULL; 3280 } 3281 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3282 if (!is_error(ret) && arg3) { 3283 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3284 host_to_target_old_sigset(p, &oldset); 3285 unlock_user(p, arg3, sizeof(target_sigset_t)); 3286 } 3287 } 3288 break; 3289 #endif 3290 case TARGET_NR_rt_sigprocmask: 3291 { 3292 int how = arg1; 3293 sigset_t set, oldset, *set_ptr; 3294 3295 if (arg2) { 3296 switch(how) { 3297 case TARGET_SIG_BLOCK: 3298 how = SIG_BLOCK; 3299 break; 3300 case TARGET_SIG_UNBLOCK: 3301 how = SIG_UNBLOCK; 3302 break; 3303 case TARGET_SIG_SETMASK: 3304 how = SIG_SETMASK; 3305 break; 3306 default: 3307 ret = -TARGET_EINVAL; 3308 goto fail; 3309 } 3310 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3311 target_to_host_sigset(&set, p); 3312 unlock_user(p, arg2, 0); 3313 set_ptr = &set; 3314 } else { 3315 how = 0; 3316 set_ptr = NULL; 3317 } 3318 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3319 if (!is_error(ret) && arg3) { 3320 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3321 host_to_target_sigset(p, &oldset); 3322 unlock_user(p, arg3, sizeof(target_sigset_t)); 3323 } 3324 } 3325 break; 3326 #ifdef TARGET_NR_sigpending 3327 case TARGET_NR_sigpending: 3328 { 3329 sigset_t set; 3330 ret = get_errno(sigpending(&set)); 3331 if (!is_error(ret)) { 3332 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3333 host_to_target_old_sigset(p, &set); 3334 unlock_user(p, arg1, sizeof(target_sigset_t)); 3335 } 3336 } 3337 break; 3338 #endif 3339 case TARGET_NR_rt_sigpending: 3340 { 3341 sigset_t set; 3342 ret = get_errno(sigpending(&set)); 3343 if (!is_error(ret)) { 3344 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3345 host_to_target_sigset(p, &set); 3346 unlock_user(p, arg1, sizeof(target_sigset_t)); 3347 } 3348 } 3349 break; 3350 #ifdef TARGET_NR_sigsuspend 3351 case TARGET_NR_sigsuspend: 3352 { 3353 sigset_t set; 3354 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3355 target_to_host_old_sigset(&set, p); 3356 unlock_user(p, arg1, 0); 3357 ret = get_errno(sigsuspend(&set)); 3358 } 3359 break; 3360 #endif 3361 case TARGET_NR_rt_sigsuspend: 3362 { 3363 sigset_t set; 3364 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3365 target_to_host_sigset(&set, p); 3366 unlock_user(p, arg1, 0); 3367 ret = get_errno(sigsuspend(&set)); 3368 } 3369 break; 3370 case TARGET_NR_rt_sigtimedwait: 3371 { 3372 sigset_t set; 3373 struct timespec uts, *puts; 3374 siginfo_t uinfo; 3375 3376 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3377 target_to_host_sigset(&set, p); 3378 unlock_user(p, arg1, 0); 3379 if (arg3) { 3380 puts = &uts; 3381 target_to_host_timespec(puts, arg3); 3382 } else { 3383 puts = NULL; 3384 } 3385 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3386 if (!is_error(ret) && arg2) { 3387 p = lock_user(arg2, sizeof(target_sigset_t), 0); 3388 host_to_target_siginfo(p, &uinfo); 3389 unlock_user(p, arg2, sizeof(target_sigset_t)); 3390 } 3391 } 3392 break; 3393 case TARGET_NR_rt_sigqueueinfo: 3394 { 3395 siginfo_t uinfo; 3396 p = lock_user(arg3, sizeof(target_sigset_t), 1); 3397 target_to_host_siginfo(&uinfo, p); 3398 unlock_user(p, arg1, 0); 3399 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3400 } 3401 break; 3402 #ifdef TARGET_NR_sigreturn 3403 case TARGET_NR_sigreturn: 3404 /* NOTE: ret is eax, so not transcoding must be done */ 3405 ret = do_sigreturn(cpu_env); 3406 break; 3407 #endif 3408 case TARGET_NR_rt_sigreturn: 3409 /* NOTE: ret is eax, so not transcoding must be done */ 3410 ret = do_rt_sigreturn(cpu_env); 3411 break; 3412 case TARGET_NR_sethostname: 3413 p = lock_user_string(arg1); 3414 ret = get_errno(sethostname(p, arg2)); 3415 unlock_user(p, arg1, 0); 3416 break; 3417 case TARGET_NR_setrlimit: 3418 { 3419 /* XXX: convert resource ? */ 3420 int resource = arg1; 3421 struct target_rlimit *target_rlim; 3422 struct rlimit rlim; 3423 lock_user_struct(target_rlim, arg2, 1); 3424 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3425 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3426 unlock_user_struct(target_rlim, arg2, 0); 3427 ret = get_errno(setrlimit(resource, &rlim)); 3428 } 3429 break; 3430 case TARGET_NR_getrlimit: 3431 { 3432 /* XXX: convert resource ? */ 3433 int resource = arg1; 3434 struct target_rlimit *target_rlim; 3435 struct rlimit rlim; 3436 3437 ret = get_errno(getrlimit(resource, &rlim)); 3438 if (!is_error(ret)) { 3439 lock_user_struct(target_rlim, arg2, 0); 3440 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3441 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3442 unlock_user_struct(target_rlim, arg2, 1); 3443 } 3444 } 3445 break; 3446 case TARGET_NR_getrusage: 3447 { 3448 struct rusage rusage; 3449 ret = get_errno(getrusage(arg1, &rusage)); 3450 if (!is_error(ret)) { 3451 host_to_target_rusage(arg2, &rusage); 3452 } 3453 } 3454 break; 3455 case TARGET_NR_gettimeofday: 3456 { 3457 struct timeval tv; 3458 ret = get_errno(gettimeofday(&tv, NULL)); 3459 if (!is_error(ret)) { 3460 host_to_target_timeval(arg1, &tv); 3461 } 3462 } 3463 break; 3464 case TARGET_NR_settimeofday: 3465 { 3466 struct timeval tv; 3467 target_to_host_timeval(&tv, arg1); 3468 ret = get_errno(settimeofday(&tv, NULL)); 3469 } 3470 break; 3471 #ifdef TARGET_NR_select 3472 case TARGET_NR_select: 3473 { 3474 struct target_sel_arg_struct *sel; 3475 abi_ulong inp, outp, exp, tvp; 3476 long nsel; 3477 3478 lock_user_struct(sel, arg1, 1); 3479 nsel = tswapl(sel->n); 3480 inp = tswapl(sel->inp); 3481 outp = tswapl(sel->outp); 3482 exp = tswapl(sel->exp); 3483 tvp = tswapl(sel->tvp); 3484 unlock_user_struct(sel, arg1, 0); 3485 ret = do_select(nsel, inp, outp, exp, tvp); 3486 } 3487 break; 3488 #endif 3489 case TARGET_NR_symlink: 3490 { 3491 void *p2; 3492 p = lock_user_string(arg1); 3493 p2 = lock_user_string(arg2); 3494 ret = get_errno(symlink(p, p2)); 3495 unlock_user(p2, arg2, 0); 3496 unlock_user(p, arg1, 0); 3497 } 3498 break; 3499 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 3500 case TARGET_NR_symlinkat: 3501 if (!arg1 || !arg3) { 3502 ret = -TARGET_EFAULT; 3503 goto fail; 3504 } 3505 { 3506 void *p2 = NULL; 3507 p = lock_user_string(arg1); 3508 p2 = lock_user_string(arg3); 3509 if (!access_ok(VERIFY_READ, p, 1) 3510 || !access_ok(VERIFY_READ, p2, 1)) 3511 /* Don't "goto fail" so that cleanup can happen. */ 3512 ret = -TARGET_EFAULT; 3513 else 3514 ret = get_errno(sys_symlinkat(p, arg2, p2)); 3515 if (p2) 3516 unlock_user(p2, arg3, 0); 3517 if (p) 3518 unlock_user(p, arg1, 0); 3519 } 3520 break; 3521 #endif 3522 #ifdef TARGET_NR_oldlstat 3523 case TARGET_NR_oldlstat: 3524 goto unimplemented; 3525 #endif 3526 case TARGET_NR_readlink: 3527 { 3528 void *p2; 3529 p = lock_user_string(arg1); 3530 p2 = lock_user(arg2, arg3, 0); 3531 ret = get_errno(readlink(path(p), p2, arg3)); 3532 unlock_user(p2, arg2, ret); 3533 unlock_user(p, arg1, 0); 3534 } 3535 break; 3536 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 3537 case TARGET_NR_readlinkat: 3538 if (!arg2 || !arg3) { 3539 ret = -TARGET_EFAULT; 3540 goto fail; 3541 } 3542 { 3543 void *p2 = NULL; 3544 p = lock_user_string(arg2); 3545 p2 = lock_user(arg3, arg4, 0); 3546 if (!access_ok(VERIFY_READ, p, 1) 3547 || !access_ok(VERIFY_READ, p2, 1)) 3548 /* Don't "goto fail" so that cleanup can happen. */ 3549 ret = -TARGET_EFAULT; 3550 else 3551 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 3552 if (p2) 3553 unlock_user(p2, arg3, ret); 3554 if (p) 3555 unlock_user(p, arg2, 0); 3556 } 3557 break; 3558 #endif 3559 #ifdef TARGET_NR_uselib 3560 case TARGET_NR_uselib: 3561 goto unimplemented; 3562 #endif 3563 #ifdef TARGET_NR_swapon 3564 case TARGET_NR_swapon: 3565 p = lock_user_string(arg1); 3566 ret = get_errno(swapon(p, arg2)); 3567 unlock_user(p, arg1, 0); 3568 break; 3569 #endif 3570 case TARGET_NR_reboot: 3571 goto unimplemented; 3572 #ifdef TARGET_NR_readdir 3573 case TARGET_NR_readdir: 3574 goto unimplemented; 3575 #endif 3576 #ifdef TARGET_NR_mmap 3577 case TARGET_NR_mmap: 3578 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) 3579 { 3580 abi_ulong *v; 3581 abi_ulong v1, v2, v3, v4, v5, v6; 3582 v = lock_user(arg1, 6 * sizeof(abi_ulong), 1); 3583 v1 = tswapl(v[0]); 3584 v2 = tswapl(v[1]); 3585 v3 = tswapl(v[2]); 3586 v4 = tswapl(v[3]); 3587 v5 = tswapl(v[4]); 3588 v6 = tswapl(v[5]); 3589 unlock_user(v, arg1, 0); 3590 ret = get_errno(target_mmap(v1, v2, v3, 3591 target_to_host_bitmask(v4, mmap_flags_tbl), 3592 v5, v6)); 3593 } 3594 #else 3595 ret = get_errno(target_mmap(arg1, arg2, arg3, 3596 target_to_host_bitmask(arg4, mmap_flags_tbl), 3597 arg5, 3598 arg6)); 3599 #endif 3600 break; 3601 #endif 3602 #ifdef TARGET_NR_mmap2 3603 case TARGET_NR_mmap2: 3604 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 3605 #define MMAP_SHIFT 12 3606 #else 3607 #define MMAP_SHIFT TARGET_PAGE_BITS 3608 #endif 3609 ret = get_errno(target_mmap(arg1, arg2, arg3, 3610 target_to_host_bitmask(arg4, mmap_flags_tbl), 3611 arg5, 3612 arg6 << MMAP_SHIFT)); 3613 break; 3614 #endif 3615 case TARGET_NR_munmap: 3616 ret = get_errno(target_munmap(arg1, arg2)); 3617 break; 3618 case TARGET_NR_mprotect: 3619 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 3620 break; 3621 #ifdef TARGET_NR_mremap 3622 case TARGET_NR_mremap: 3623 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 3624 break; 3625 #endif 3626 /* ??? msync/mlock/munlock are broken for softmmu. */ 3627 #ifdef TARGET_NR_msync 3628 case TARGET_NR_msync: 3629 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 3630 break; 3631 #endif 3632 #ifdef TARGET_NR_mlock 3633 case TARGET_NR_mlock: 3634 ret = get_errno(mlock(g2h(arg1), arg2)); 3635 break; 3636 #endif 3637 #ifdef TARGET_NR_munlock 3638 case TARGET_NR_munlock: 3639 ret = get_errno(munlock(g2h(arg1), arg2)); 3640 break; 3641 #endif 3642 #ifdef TARGET_NR_mlockall 3643 case TARGET_NR_mlockall: 3644 ret = get_errno(mlockall(arg1)); 3645 break; 3646 #endif 3647 #ifdef TARGET_NR_munlockall 3648 case TARGET_NR_munlockall: 3649 ret = get_errno(munlockall()); 3650 break; 3651 #endif 3652 case TARGET_NR_truncate: 3653 p = lock_user_string(arg1); 3654 ret = get_errno(truncate(p, arg2)); 3655 unlock_user(p, arg1, 0); 3656 break; 3657 case TARGET_NR_ftruncate: 3658 ret = get_errno(ftruncate(arg1, arg2)); 3659 break; 3660 case TARGET_NR_fchmod: 3661 ret = get_errno(fchmod(arg1, arg2)); 3662 break; 3663 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 3664 case TARGET_NR_fchmodat: 3665 if (!arg2) { 3666 ret = -TARGET_EFAULT; 3667 goto fail; 3668 } 3669 p = lock_user_string(arg2); 3670 if (!access_ok(VERIFY_READ, p, 1)) 3671 /* Don't "goto fail" so that cleanup can happen. */ 3672 ret = -TARGET_EFAULT; 3673 else 3674 ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4)); 3675 if (p) 3676 unlock_user(p, arg2, 0); 3677 break; 3678 #endif 3679 case TARGET_NR_getpriority: 3680 /* libc does special remapping of the return value of 3681 * sys_getpriority() so it's just easiest to call 3682 * sys_getpriority() directly rather than through libc. */ 3683 ret = sys_getpriority(arg1, arg2); 3684 break; 3685 case TARGET_NR_setpriority: 3686 ret = get_errno(setpriority(arg1, arg2, arg3)); 3687 break; 3688 #ifdef TARGET_NR_profil 3689 case TARGET_NR_profil: 3690 goto unimplemented; 3691 #endif 3692 case TARGET_NR_statfs: 3693 p = lock_user_string(arg1); 3694 ret = get_errno(statfs(path(p), &stfs)); 3695 unlock_user(p, arg1, 0); 3696 convert_statfs: 3697 if (!is_error(ret)) { 3698 struct target_statfs *target_stfs; 3699 3700 lock_user_struct(target_stfs, arg2, 0); 3701 /* ??? put_user is probably wrong. */ 3702 put_user(stfs.f_type, &target_stfs->f_type); 3703 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3704 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3705 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3706 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3707 put_user(stfs.f_files, &target_stfs->f_files); 3708 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3709 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3710 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3711 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3712 unlock_user_struct(target_stfs, arg2, 1); 3713 } 3714 break; 3715 case TARGET_NR_fstatfs: 3716 ret = get_errno(fstatfs(arg1, &stfs)); 3717 goto convert_statfs; 3718 #ifdef TARGET_NR_statfs64 3719 case TARGET_NR_statfs64: 3720 p = lock_user_string(arg1); 3721 ret = get_errno(statfs(path(p), &stfs)); 3722 unlock_user(p, arg1, 0); 3723 convert_statfs64: 3724 if (!is_error(ret)) { 3725 struct target_statfs64 *target_stfs; 3726 3727 lock_user_struct(target_stfs, arg3, 0); 3728 /* ??? put_user is probably wrong. */ 3729 put_user(stfs.f_type, &target_stfs->f_type); 3730 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3731 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3732 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3733 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3734 put_user(stfs.f_files, &target_stfs->f_files); 3735 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3736 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3737 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3738 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3739 unlock_user_struct(target_stfs, arg3, 0); 3740 } 3741 break; 3742 case TARGET_NR_fstatfs64: 3743 ret = get_errno(fstatfs(arg1, &stfs)); 3744 goto convert_statfs64; 3745 #endif 3746 #ifdef TARGET_NR_ioperm 3747 case TARGET_NR_ioperm: 3748 goto unimplemented; 3749 #endif 3750 #ifdef TARGET_NR_socketcall 3751 case TARGET_NR_socketcall: 3752 ret = do_socketcall(arg1, arg2); 3753 break; 3754 #endif 3755 #ifdef TARGET_NR_accept 3756 case TARGET_NR_accept: 3757 ret = do_accept(arg1, arg2, arg3); 3758 break; 3759 #endif 3760 #ifdef TARGET_NR_bind 3761 case TARGET_NR_bind: 3762 ret = do_bind(arg1, arg2, arg3); 3763 break; 3764 #endif 3765 #ifdef TARGET_NR_connect 3766 case TARGET_NR_connect: 3767 ret = do_connect(arg1, arg2, arg3); 3768 break; 3769 #endif 3770 #ifdef TARGET_NR_getpeername 3771 case TARGET_NR_getpeername: 3772 ret = do_getpeername(arg1, arg2, arg3); 3773 break; 3774 #endif 3775 #ifdef TARGET_NR_getsockname 3776 case TARGET_NR_getsockname: 3777 ret = do_getsockname(arg1, arg2, arg3); 3778 break; 3779 #endif 3780 #ifdef TARGET_NR_getsockopt 3781 case TARGET_NR_getsockopt: 3782 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 3783 break; 3784 #endif 3785 #ifdef TARGET_NR_listen 3786 case TARGET_NR_listen: 3787 ret = get_errno(listen(arg1, arg2)); 3788 break; 3789 #endif 3790 #ifdef TARGET_NR_recv 3791 case TARGET_NR_recv: 3792 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3793 break; 3794 #endif 3795 #ifdef TARGET_NR_recvfrom 3796 case TARGET_NR_recvfrom: 3797 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3798 break; 3799 #endif 3800 #ifdef TARGET_NR_recvmsg 3801 case TARGET_NR_recvmsg: 3802 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3803 break; 3804 #endif 3805 #ifdef TARGET_NR_send 3806 case TARGET_NR_send: 3807 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3808 break; 3809 #endif 3810 #ifdef TARGET_NR_sendmsg 3811 case TARGET_NR_sendmsg: 3812 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3813 break; 3814 #endif 3815 #ifdef TARGET_NR_sendto 3816 case TARGET_NR_sendto: 3817 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3818 break; 3819 #endif 3820 #ifdef TARGET_NR_shutdown 3821 case TARGET_NR_shutdown: 3822 ret = get_errno(shutdown(arg1, arg2)); 3823 break; 3824 #endif 3825 #ifdef TARGET_NR_socket 3826 case TARGET_NR_socket: 3827 ret = do_socket(arg1, arg2, arg3); 3828 break; 3829 #endif 3830 #ifdef TARGET_NR_socketpair 3831 case TARGET_NR_socketpair: 3832 ret = do_socketpair(arg1, arg2, arg3, arg4); 3833 break; 3834 #endif 3835 #ifdef TARGET_NR_setsockopt 3836 case TARGET_NR_setsockopt: 3837 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3838 break; 3839 #endif 3840 3841 case TARGET_NR_syslog: 3842 p = lock_user_string(arg2); 3843 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3844 unlock_user(p, arg2, 0); 3845 break; 3846 3847 case TARGET_NR_setitimer: 3848 { 3849 struct itimerval value, ovalue, *pvalue; 3850 3851 if (arg2) { 3852 pvalue = &value; 3853 target_to_host_timeval(&pvalue->it_interval, 3854 arg2); 3855 target_to_host_timeval(&pvalue->it_value, 3856 arg2 + sizeof(struct target_timeval)); 3857 } else { 3858 pvalue = NULL; 3859 } 3860 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3861 if (!is_error(ret) && arg3) { 3862 host_to_target_timeval(arg3, 3863 &ovalue.it_interval); 3864 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3865 &ovalue.it_value); 3866 } 3867 } 3868 break; 3869 case TARGET_NR_getitimer: 3870 { 3871 struct itimerval value; 3872 3873 ret = get_errno(getitimer(arg1, &value)); 3874 if (!is_error(ret) && arg2) { 3875 host_to_target_timeval(arg2, 3876 &value.it_interval); 3877 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3878 &value.it_value); 3879 } 3880 } 3881 break; 3882 case TARGET_NR_stat: 3883 p = lock_user_string(arg1); 3884 ret = get_errno(stat(path(p), &st)); 3885 unlock_user(p, arg1, 0); 3886 goto do_stat; 3887 case TARGET_NR_lstat: 3888 p = lock_user_string(arg1); 3889 ret = get_errno(lstat(path(p), &st)); 3890 unlock_user(p, arg1, 0); 3891 goto do_stat; 3892 case TARGET_NR_fstat: 3893 { 3894 ret = get_errno(fstat(arg1, &st)); 3895 do_stat: 3896 if (!is_error(ret)) { 3897 struct target_stat *target_st; 3898 3899 lock_user_struct(target_st, arg2, 0); 3900 #if defined(TARGET_MIPS) || (defined(TARGET_SPARC64) && !defined(TARGET_ABI32)) 3901 target_st->st_dev = tswap32(st.st_dev); 3902 #else 3903 target_st->st_dev = tswap16(st.st_dev); 3904 #endif 3905 target_st->st_ino = tswapl(st.st_ino); 3906 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3907 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3908 target_st->st_uid = tswap32(st.st_uid); 3909 target_st->st_gid = tswap32(st.st_gid); 3910 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 3911 target_st->st_mode = tswap32(st.st_mode); 3912 target_st->st_uid = tswap32(st.st_uid); 3913 target_st->st_gid = tswap32(st.st_gid); 3914 #else 3915 target_st->st_mode = tswap16(st.st_mode); 3916 target_st->st_uid = tswap16(st.st_uid); 3917 target_st->st_gid = tswap16(st.st_gid); 3918 #endif 3919 #if defined(TARGET_MIPS) 3920 /* If this is the same on PPC, then just merge w/ the above ifdef */ 3921 target_st->st_nlink = tswapl(st.st_nlink); 3922 target_st->st_rdev = tswapl(st.st_rdev); 3923 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 3924 target_st->st_nlink = tswap32(st.st_nlink); 3925 target_st->st_rdev = tswap32(st.st_rdev); 3926 #else 3927 target_st->st_nlink = tswap16(st.st_nlink); 3928 target_st->st_rdev = tswap16(st.st_rdev); 3929 #endif 3930 target_st->st_size = tswapl(st.st_size); 3931 target_st->st_blksize = tswapl(st.st_blksize); 3932 target_st->st_blocks = tswapl(st.st_blocks); 3933 target_st->target_st_atime = tswapl(st.st_atime); 3934 target_st->target_st_mtime = tswapl(st.st_mtime); 3935 target_st->target_st_ctime = tswapl(st.st_ctime); 3936 unlock_user_struct(target_st, arg2, 1); 3937 } 3938 } 3939 break; 3940 #ifdef TARGET_NR_olduname 3941 case TARGET_NR_olduname: 3942 goto unimplemented; 3943 #endif 3944 #ifdef TARGET_NR_iopl 3945 case TARGET_NR_iopl: 3946 goto unimplemented; 3947 #endif 3948 case TARGET_NR_vhangup: 3949 ret = get_errno(vhangup()); 3950 break; 3951 #ifdef TARGET_NR_idle 3952 case TARGET_NR_idle: 3953 goto unimplemented; 3954 #endif 3955 #ifdef TARGET_NR_syscall 3956 case TARGET_NR_syscall: 3957 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3958 break; 3959 #endif 3960 case TARGET_NR_wait4: 3961 { 3962 int status; 3963 abi_long status_ptr = arg2; 3964 struct rusage rusage, *rusage_ptr; 3965 abi_ulong target_rusage = arg4; 3966 if (target_rusage) 3967 rusage_ptr = &rusage; 3968 else 3969 rusage_ptr = NULL; 3970 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3971 if (!is_error(ret)) { 3972 if (status_ptr) 3973 tputl(status_ptr, status); 3974 if (target_rusage) { 3975 host_to_target_rusage(target_rusage, &rusage); 3976 } 3977 } 3978 } 3979 break; 3980 #ifdef TARGET_NR_swapoff 3981 case TARGET_NR_swapoff: 3982 p = lock_user_string(arg1); 3983 ret = get_errno(swapoff(p)); 3984 unlock_user(p, arg1, 0); 3985 break; 3986 #endif 3987 case TARGET_NR_sysinfo: 3988 { 3989 struct target_sysinfo *target_value; 3990 struct sysinfo value; 3991 ret = get_errno(sysinfo(&value)); 3992 if (!is_error(ret) && arg1) 3993 { 3994 /* ??? __put_user is probably wrong. */ 3995 lock_user_struct(target_value, arg1, 0); 3996 __put_user(value.uptime, &target_value->uptime); 3997 __put_user(value.loads[0], &target_value->loads[0]); 3998 __put_user(value.loads[1], &target_value->loads[1]); 3999 __put_user(value.loads[2], &target_value->loads[2]); 4000 __put_user(value.totalram, &target_value->totalram); 4001 __put_user(value.freeram, &target_value->freeram); 4002 __put_user(value.sharedram, &target_value->sharedram); 4003 __put_user(value.bufferram, &target_value->bufferram); 4004 __put_user(value.totalswap, &target_value->totalswap); 4005 __put_user(value.freeswap, &target_value->freeswap); 4006 __put_user(value.procs, &target_value->procs); 4007 __put_user(value.totalhigh, &target_value->totalhigh); 4008 __put_user(value.freehigh, &target_value->freehigh); 4009 __put_user(value.mem_unit, &target_value->mem_unit); 4010 unlock_user_struct(target_value, arg1, 1); 4011 } 4012 } 4013 break; 4014 #ifdef TARGET_NR_ipc 4015 case TARGET_NR_ipc: 4016 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 4017 break; 4018 #endif 4019 case TARGET_NR_fsync: 4020 ret = get_errno(fsync(arg1)); 4021 break; 4022 case TARGET_NR_clone: 4023 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 4024 break; 4025 #ifdef __NR_exit_group 4026 /* new thread calls */ 4027 case TARGET_NR_exit_group: 4028 gdb_exit(cpu_env, arg1); 4029 ret = get_errno(exit_group(arg1)); 4030 break; 4031 #endif 4032 case TARGET_NR_setdomainname: 4033 p = lock_user_string(arg1); 4034 ret = get_errno(setdomainname(p, arg2)); 4035 unlock_user(p, arg1, 0); 4036 break; 4037 case TARGET_NR_uname: 4038 /* no need to transcode because we use the linux syscall */ 4039 { 4040 struct new_utsname * buf; 4041 4042 lock_user_struct(buf, arg1, 0); 4043 ret = get_errno(sys_uname(buf)); 4044 if (!is_error(ret)) { 4045 /* Overrite the native machine name with whatever is being 4046 emulated. */ 4047 strcpy (buf->machine, UNAME_MACHINE); 4048 /* Allow the user to override the reported release. */ 4049 if (qemu_uname_release && *qemu_uname_release) 4050 strcpy (buf->release, qemu_uname_release); 4051 } 4052 unlock_user_struct(buf, arg1, 1); 4053 } 4054 break; 4055 #ifdef TARGET_I386 4056 case TARGET_NR_modify_ldt: 4057 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 4058 break; 4059 #if !defined(TARGET_X86_64) 4060 case TARGET_NR_vm86old: 4061 goto unimplemented; 4062 case TARGET_NR_vm86: 4063 ret = do_vm86(cpu_env, arg1, arg2); 4064 break; 4065 #endif 4066 #endif 4067 case TARGET_NR_adjtimex: 4068 goto unimplemented; 4069 #ifdef TARGET_NR_create_module 4070 case TARGET_NR_create_module: 4071 #endif 4072 case TARGET_NR_init_module: 4073 case TARGET_NR_delete_module: 4074 #ifdef TARGET_NR_get_kernel_syms 4075 case TARGET_NR_get_kernel_syms: 4076 #endif 4077 goto unimplemented; 4078 case TARGET_NR_quotactl: 4079 goto unimplemented; 4080 case TARGET_NR_getpgid: 4081 ret = get_errno(getpgid(arg1)); 4082 break; 4083 case TARGET_NR_fchdir: 4084 ret = get_errno(fchdir(arg1)); 4085 break; 4086 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 4087 case TARGET_NR_bdflush: 4088 goto unimplemented; 4089 #endif 4090 #ifdef TARGET_NR_sysfs 4091 case TARGET_NR_sysfs: 4092 goto unimplemented; 4093 #endif 4094 case TARGET_NR_personality: 4095 ret = get_errno(personality(arg1)); 4096 break; 4097 #ifdef TARGET_NR_afs_syscall 4098 case TARGET_NR_afs_syscall: 4099 goto unimplemented; 4100 #endif 4101 #ifdef TARGET_NR__llseek /* Not on alpha */ 4102 case TARGET_NR__llseek: 4103 { 4104 #if defined (__x86_64__) 4105 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 4106 tput64(arg4, ret); 4107 #else 4108 int64_t res; 4109 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 4110 tput64(arg4, res); 4111 #endif 4112 } 4113 break; 4114 #endif 4115 case TARGET_NR_getdents: 4116 #if TARGET_ABI_BITS != 32 4117 goto unimplemented; 4118 #warning not supported 4119 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 4120 { 4121 struct target_dirent *target_dirp; 4122 struct dirent *dirp; 4123 abi_long count = arg3; 4124 4125 dirp = malloc(count); 4126 if (!dirp) { 4127 ret = -TARGET_EFAULT; 4128 goto fail; 4129 } 4130 4131 ret = get_errno(sys_getdents(arg1, dirp, count)); 4132 if (!is_error(ret)) { 4133 struct dirent *de; 4134 struct target_dirent *tde; 4135 int len = ret; 4136 int reclen, treclen; 4137 int count1, tnamelen; 4138 4139 count1 = 0; 4140 de = dirp; 4141 target_dirp = lock_user(arg2, count, 0); 4142 tde = target_dirp; 4143 while (len > 0) { 4144 reclen = de->d_reclen; 4145 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 4146 tde->d_reclen = tswap16(treclen); 4147 tde->d_ino = tswapl(de->d_ino); 4148 tde->d_off = tswapl(de->d_off); 4149 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 4150 if (tnamelen > 256) 4151 tnamelen = 256; 4152 /* XXX: may not be correct */ 4153 strncpy(tde->d_name, de->d_name, tnamelen); 4154 de = (struct dirent *)((char *)de + reclen); 4155 len -= reclen; 4156 tde = (struct target_dirent *)((char *)tde + treclen); 4157 count1 += treclen; 4158 } 4159 ret = count1; 4160 } 4161 unlock_user(target_dirp, arg2, ret); 4162 free(dirp); 4163 } 4164 #else 4165 { 4166 struct dirent *dirp; 4167 abi_long count = arg3; 4168 4169 dirp = lock_user(arg2, count, 0); 4170 ret = get_errno(sys_getdents(arg1, dirp, count)); 4171 if (!is_error(ret)) { 4172 struct dirent *de; 4173 int len = ret; 4174 int reclen; 4175 de = dirp; 4176 while (len > 0) { 4177 reclen = de->d_reclen; 4178 if (reclen > len) 4179 break; 4180 de->d_reclen = tswap16(reclen); 4181 tswapls(&de->d_ino); 4182 tswapls(&de->d_off); 4183 de = (struct dirent *)((char *)de + reclen); 4184 len -= reclen; 4185 } 4186 } 4187 unlock_user(dirp, arg2, ret); 4188 } 4189 #endif 4190 break; 4191 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 4192 case TARGET_NR_getdents64: 4193 { 4194 struct dirent64 *dirp; 4195 abi_long count = arg3; 4196 dirp = lock_user(arg2, count, 0); 4197 ret = get_errno(sys_getdents64(arg1, dirp, count)); 4198 if (!is_error(ret)) { 4199 struct dirent64 *de; 4200 int len = ret; 4201 int reclen; 4202 de = dirp; 4203 while (len > 0) { 4204 reclen = de->d_reclen; 4205 if (reclen > len) 4206 break; 4207 de->d_reclen = tswap16(reclen); 4208 tswap64s(&de->d_ino); 4209 tswap64s(&de->d_off); 4210 de = (struct dirent64 *)((char *)de + reclen); 4211 len -= reclen; 4212 } 4213 } 4214 unlock_user(dirp, arg2, ret); 4215 } 4216 break; 4217 #endif /* TARGET_NR_getdents64 */ 4218 #ifdef TARGET_NR__newselect 4219 case TARGET_NR__newselect: 4220 ret = do_select(arg1, arg2, arg3, arg4, arg5); 4221 break; 4222 #endif 4223 #ifdef TARGET_NR_poll 4224 case TARGET_NR_poll: 4225 { 4226 struct target_pollfd *target_pfd; 4227 unsigned int nfds = arg2; 4228 int timeout = arg3; 4229 struct pollfd *pfd; 4230 unsigned int i; 4231 4232 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 4233 pfd = alloca(sizeof(struct pollfd) * nfds); 4234 for(i = 0; i < nfds; i++) { 4235 pfd[i].fd = tswap32(target_pfd[i].fd); 4236 pfd[i].events = tswap16(target_pfd[i].events); 4237 } 4238 ret = get_errno(poll(pfd, nfds, timeout)); 4239 if (!is_error(ret)) { 4240 for(i = 0; i < nfds; i++) { 4241 target_pfd[i].revents = tswap16(pfd[i].revents); 4242 } 4243 ret += nfds * (sizeof(struct target_pollfd) 4244 - sizeof(struct pollfd)); 4245 } 4246 unlock_user(target_pfd, arg1, ret); 4247 } 4248 break; 4249 #endif 4250 case TARGET_NR_flock: 4251 /* NOTE: the flock constant seems to be the same for every 4252 Linux platform */ 4253 ret = get_errno(flock(arg1, arg2)); 4254 break; 4255 case TARGET_NR_readv: 4256 { 4257 int count = arg3; 4258 struct iovec *vec; 4259 4260 vec = alloca(count * sizeof(struct iovec)); 4261 lock_iovec(vec, arg2, count, 0); 4262 ret = get_errno(readv(arg1, vec, count)); 4263 unlock_iovec(vec, arg2, count, 1); 4264 } 4265 break; 4266 case TARGET_NR_writev: 4267 { 4268 int count = arg3; 4269 struct iovec *vec; 4270 4271 vec = alloca(count * sizeof(struct iovec)); 4272 lock_iovec(vec, arg2, count, 1); 4273 ret = get_errno(writev(arg1, vec, count)); 4274 unlock_iovec(vec, arg2, count, 0); 4275 } 4276 break; 4277 case TARGET_NR_getsid: 4278 ret = get_errno(getsid(arg1)); 4279 break; 4280 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 4281 case TARGET_NR_fdatasync: 4282 ret = get_errno(fdatasync(arg1)); 4283 break; 4284 #endif 4285 case TARGET_NR__sysctl: 4286 /* We don't implement this, but ENOTDIR is always a safe 4287 return value. */ 4288 ret = -TARGET_ENOTDIR; 4289 break; 4290 case TARGET_NR_sched_setparam: 4291 { 4292 struct sched_param *target_schp; 4293 struct sched_param schp; 4294 4295 lock_user_struct(target_schp, arg2, 1); 4296 schp.sched_priority = tswap32(target_schp->sched_priority); 4297 unlock_user_struct(target_schp, arg2, 0); 4298 ret = get_errno(sched_setparam(arg1, &schp)); 4299 } 4300 break; 4301 case TARGET_NR_sched_getparam: 4302 { 4303 struct sched_param *target_schp; 4304 struct sched_param schp; 4305 ret = get_errno(sched_getparam(arg1, &schp)); 4306 if (!is_error(ret)) { 4307 lock_user_struct(target_schp, arg2, 0); 4308 target_schp->sched_priority = tswap32(schp.sched_priority); 4309 unlock_user_struct(target_schp, arg2, 1); 4310 } 4311 } 4312 break; 4313 case TARGET_NR_sched_setscheduler: 4314 { 4315 struct sched_param *target_schp; 4316 struct sched_param schp; 4317 lock_user_struct(target_schp, arg3, 1); 4318 schp.sched_priority = tswap32(target_schp->sched_priority); 4319 unlock_user_struct(target_schp, arg3, 0); 4320 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4321 } 4322 break; 4323 case TARGET_NR_sched_getscheduler: 4324 ret = get_errno(sched_getscheduler(arg1)); 4325 break; 4326 case TARGET_NR_sched_yield: 4327 ret = get_errno(sched_yield()); 4328 break; 4329 case TARGET_NR_sched_get_priority_max: 4330 ret = get_errno(sched_get_priority_max(arg1)); 4331 break; 4332 case TARGET_NR_sched_get_priority_min: 4333 ret = get_errno(sched_get_priority_min(arg1)); 4334 break; 4335 case TARGET_NR_sched_rr_get_interval: 4336 { 4337 struct timespec ts; 4338 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4339 if (!is_error(ret)) { 4340 host_to_target_timespec(arg2, &ts); 4341 } 4342 } 4343 break; 4344 case TARGET_NR_nanosleep: 4345 { 4346 struct timespec req, rem; 4347 target_to_host_timespec(&req, arg1); 4348 ret = get_errno(nanosleep(&req, &rem)); 4349 if (is_error(ret) && arg2) { 4350 host_to_target_timespec(arg2, &rem); 4351 } 4352 } 4353 break; 4354 #ifdef TARGET_NR_query_module 4355 case TARGET_NR_query_module: 4356 goto unimplemented; 4357 #endif 4358 #ifdef TARGET_NR_nfsservctl 4359 case TARGET_NR_nfsservctl: 4360 goto unimplemented; 4361 #endif 4362 case TARGET_NR_prctl: 4363 switch (arg1) 4364 { 4365 case PR_GET_PDEATHSIG: 4366 { 4367 int deathsig; 4368 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4369 if (!is_error(ret) && arg2) 4370 tput32(arg2, deathsig); 4371 } 4372 break; 4373 default: 4374 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4375 break; 4376 } 4377 break; 4378 #ifdef TARGET_NR_pread 4379 case TARGET_NR_pread: 4380 page_unprotect_range(arg2, arg3); 4381 p = lock_user(arg2, arg3, 0); 4382 ret = get_errno(pread(arg1, p, arg3, arg4)); 4383 unlock_user(p, arg2, ret); 4384 break; 4385 case TARGET_NR_pwrite: 4386 p = lock_user(arg2, arg3, 1); 4387 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4388 unlock_user(p, arg2, 0); 4389 break; 4390 #endif 4391 case TARGET_NR_getcwd: 4392 p = lock_user(arg1, arg2, 0); 4393 ret = get_errno(sys_getcwd1(p, arg2)); 4394 unlock_user(p, arg1, ret); 4395 break; 4396 case TARGET_NR_capget: 4397 goto unimplemented; 4398 case TARGET_NR_capset: 4399 goto unimplemented; 4400 case TARGET_NR_sigaltstack: 4401 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 4402 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) 4403 ret = do_sigaltstack((struct target_sigaltstack *)arg1, 4404 (struct target_sigaltstack *)arg2, 4405 get_sp_from_cpustate((CPUState *)cpu_env)); 4406 break; 4407 #else 4408 goto unimplemented; 4409 #endif 4410 case TARGET_NR_sendfile: 4411 goto unimplemented; 4412 #ifdef TARGET_NR_getpmsg 4413 case TARGET_NR_getpmsg: 4414 goto unimplemented; 4415 #endif 4416 #ifdef TARGET_NR_putpmsg 4417 case TARGET_NR_putpmsg: 4418 goto unimplemented; 4419 #endif 4420 #ifdef TARGET_NR_vfork 4421 case TARGET_NR_vfork: 4422 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4423 break; 4424 #endif 4425 #ifdef TARGET_NR_ugetrlimit 4426 case TARGET_NR_ugetrlimit: 4427 { 4428 struct rlimit rlim; 4429 ret = get_errno(getrlimit(arg1, &rlim)); 4430 if (!is_error(ret)) { 4431 struct target_rlimit *target_rlim; 4432 lock_user_struct(target_rlim, arg2, 0); 4433 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4434 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4435 unlock_user_struct(target_rlim, arg2, 1); 4436 } 4437 break; 4438 } 4439 #endif 4440 #ifdef TARGET_NR_truncate64 4441 case TARGET_NR_truncate64: 4442 p = lock_user_string(arg1); 4443 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4444 unlock_user(p, arg1, 0); 4445 break; 4446 #endif 4447 #ifdef TARGET_NR_ftruncate64 4448 case TARGET_NR_ftruncate64: 4449 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4450 break; 4451 #endif 4452 #ifdef TARGET_NR_stat64 4453 case TARGET_NR_stat64: 4454 p = lock_user_string(arg1); 4455 ret = get_errno(stat(path(p), &st)); 4456 unlock_user(p, arg1, 0); 4457 goto do_stat64; 4458 #endif 4459 #ifdef TARGET_NR_lstat64 4460 case TARGET_NR_lstat64: 4461 p = lock_user_string(arg1); 4462 ret = get_errno(lstat(path(p), &st)); 4463 unlock_user(p, arg1, 0); 4464 goto do_stat64; 4465 #endif 4466 #ifdef TARGET_NR_fstat64 4467 case TARGET_NR_fstat64: 4468 { 4469 ret = get_errno(fstat(arg1, &st)); 4470 do_stat64: 4471 if (!is_error(ret)) { 4472 #ifdef TARGET_ARM 4473 if (((CPUARMState *)cpu_env)->eabi) { 4474 struct target_eabi_stat64 *target_st; 4475 lock_user_struct(target_st, arg2, 1); 4476 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4477 /* put_user is probably wrong. */ 4478 put_user(st.st_dev, &target_st->st_dev); 4479 put_user(st.st_ino, &target_st->st_ino); 4480 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4481 put_user(st.st_ino, &target_st->__st_ino); 4482 #endif 4483 put_user(st.st_mode, &target_st->st_mode); 4484 put_user(st.st_nlink, &target_st->st_nlink); 4485 put_user(st.st_uid, &target_st->st_uid); 4486 put_user(st.st_gid, &target_st->st_gid); 4487 put_user(st.st_rdev, &target_st->st_rdev); 4488 /* XXX: better use of kernel struct */ 4489 put_user(st.st_size, &target_st->st_size); 4490 put_user(st.st_blksize, &target_st->st_blksize); 4491 put_user(st.st_blocks, &target_st->st_blocks); 4492 put_user(st.st_atime, &target_st->target_st_atime); 4493 put_user(st.st_mtime, &target_st->target_st_mtime); 4494 put_user(st.st_ctime, &target_st->target_st_ctime); 4495 unlock_user_struct(target_st, arg2, 0); 4496 } else 4497 #endif 4498 { 4499 struct target_stat64 *target_st; 4500 lock_user_struct(target_st, arg2, 1); 4501 memset(target_st, 0, sizeof(struct target_stat64)); 4502 /* ??? put_user is probably wrong. */ 4503 put_user(st.st_dev, &target_st->st_dev); 4504 put_user(st.st_ino, &target_st->st_ino); 4505 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4506 put_user(st.st_ino, &target_st->__st_ino); 4507 #endif 4508 put_user(st.st_mode, &target_st->st_mode); 4509 put_user(st.st_nlink, &target_st->st_nlink); 4510 put_user(st.st_uid, &target_st->st_uid); 4511 put_user(st.st_gid, &target_st->st_gid); 4512 put_user(st.st_rdev, &target_st->st_rdev); 4513 /* XXX: better use of kernel struct */ 4514 put_user(st.st_size, &target_st->st_size); 4515 put_user(st.st_blksize, &target_st->st_blksize); 4516 put_user(st.st_blocks, &target_st->st_blocks); 4517 put_user(st.st_atime, &target_st->target_st_atime); 4518 put_user(st.st_mtime, &target_st->target_st_mtime); 4519 put_user(st.st_ctime, &target_st->target_st_ctime); 4520 unlock_user_struct(target_st, arg2, 0); 4521 } 4522 } 4523 } 4524 break; 4525 #endif 4526 #ifdef USE_UID16 4527 case TARGET_NR_lchown: 4528 p = lock_user_string(arg1); 4529 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 4530 unlock_user(p, arg1, 0); 4531 break; 4532 case TARGET_NR_getuid: 4533 ret = get_errno(high2lowuid(getuid())); 4534 break; 4535 case TARGET_NR_getgid: 4536 ret = get_errno(high2lowgid(getgid())); 4537 break; 4538 case TARGET_NR_geteuid: 4539 ret = get_errno(high2lowuid(geteuid())); 4540 break; 4541 case TARGET_NR_getegid: 4542 ret = get_errno(high2lowgid(getegid())); 4543 break; 4544 case TARGET_NR_setreuid: 4545 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 4546 break; 4547 case TARGET_NR_setregid: 4548 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 4549 break; 4550 case TARGET_NR_getgroups: 4551 { 4552 int gidsetsize = arg1; 4553 uint16_t *target_grouplist; 4554 gid_t *grouplist; 4555 int i; 4556 4557 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4558 ret = get_errno(getgroups(gidsetsize, grouplist)); 4559 if (!is_error(ret)) { 4560 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 4561 for(i = 0;i < gidsetsize; i++) 4562 target_grouplist[i] = tswap16(grouplist[i]); 4563 unlock_user(target_grouplist, arg2, gidsetsize * 2); 4564 } 4565 } 4566 break; 4567 case TARGET_NR_setgroups: 4568 { 4569 int gidsetsize = arg1; 4570 uint16_t *target_grouplist; 4571 gid_t *grouplist; 4572 int i; 4573 4574 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4575 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 4576 for(i = 0;i < gidsetsize; i++) 4577 grouplist[i] = tswap16(target_grouplist[i]); 4578 unlock_user(target_grouplist, arg2, 0); 4579 ret = get_errno(setgroups(gidsetsize, grouplist)); 4580 } 4581 break; 4582 case TARGET_NR_fchown: 4583 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 4584 break; 4585 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 4586 case TARGET_NR_fchownat: 4587 if (!arg2) { 4588 ret = -TARGET_EFAULT; 4589 goto fail; 4590 } 4591 p = lock_user_string(arg2); 4592 if (!access_ok(VERIFY_READ, p, 1)) 4593 /* Don't "goto fail" so that cleanup can happen. */ 4594 ret = -TARGET_EFAULT; 4595 else 4596 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 4597 if (p) 4598 unlock_user(p, arg2, 0); 4599 break; 4600 #endif 4601 #ifdef TARGET_NR_setresuid 4602 case TARGET_NR_setresuid: 4603 ret = get_errno(setresuid(low2highuid(arg1), 4604 low2highuid(arg2), 4605 low2highuid(arg3))); 4606 break; 4607 #endif 4608 #ifdef TARGET_NR_getresuid 4609 case TARGET_NR_getresuid: 4610 { 4611 uid_t ruid, euid, suid; 4612 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4613 if (!is_error(ret)) { 4614 tput16(arg1, tswap16(high2lowuid(ruid))); 4615 tput16(arg2, tswap16(high2lowuid(euid))); 4616 tput16(arg3, tswap16(high2lowuid(suid))); 4617 } 4618 } 4619 break; 4620 #endif 4621 #ifdef TARGET_NR_getresgid 4622 case TARGET_NR_setresgid: 4623 ret = get_errno(setresgid(low2highgid(arg1), 4624 low2highgid(arg2), 4625 low2highgid(arg3))); 4626 break; 4627 #endif 4628 #ifdef TARGET_NR_getresgid 4629 case TARGET_NR_getresgid: 4630 { 4631 gid_t rgid, egid, sgid; 4632 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4633 if (!is_error(ret)) { 4634 tput16(arg1, tswap16(high2lowgid(rgid))); 4635 tput16(arg2, tswap16(high2lowgid(egid))); 4636 tput16(arg3, tswap16(high2lowgid(sgid))); 4637 } 4638 } 4639 break; 4640 #endif 4641 case TARGET_NR_chown: 4642 p = lock_user_string(arg1); 4643 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 4644 unlock_user(p, arg1, 0); 4645 break; 4646 case TARGET_NR_setuid: 4647 ret = get_errno(setuid(low2highuid(arg1))); 4648 break; 4649 case TARGET_NR_setgid: 4650 ret = get_errno(setgid(low2highgid(arg1))); 4651 break; 4652 case TARGET_NR_setfsuid: 4653 ret = get_errno(setfsuid(arg1)); 4654 break; 4655 case TARGET_NR_setfsgid: 4656 ret = get_errno(setfsgid(arg1)); 4657 break; 4658 #endif /* USE_UID16 */ 4659 4660 #ifdef TARGET_NR_lchown32 4661 case TARGET_NR_lchown32: 4662 p = lock_user_string(arg1); 4663 ret = get_errno(lchown(p, arg2, arg3)); 4664 unlock_user(p, arg1, 0); 4665 break; 4666 #endif 4667 #ifdef TARGET_NR_getuid32 4668 case TARGET_NR_getuid32: 4669 ret = get_errno(getuid()); 4670 break; 4671 #endif 4672 #ifdef TARGET_NR_getgid32 4673 case TARGET_NR_getgid32: 4674 ret = get_errno(getgid()); 4675 break; 4676 #endif 4677 #ifdef TARGET_NR_geteuid32 4678 case TARGET_NR_geteuid32: 4679 ret = get_errno(geteuid()); 4680 break; 4681 #endif 4682 #ifdef TARGET_NR_getegid32 4683 case TARGET_NR_getegid32: 4684 ret = get_errno(getegid()); 4685 break; 4686 #endif 4687 #ifdef TARGET_NR_setreuid32 4688 case TARGET_NR_setreuid32: 4689 ret = get_errno(setreuid(arg1, arg2)); 4690 break; 4691 #endif 4692 #ifdef TARGET_NR_setregid32 4693 case TARGET_NR_setregid32: 4694 ret = get_errno(setregid(arg1, arg2)); 4695 break; 4696 #endif 4697 #ifdef TARGET_NR_getgroups32 4698 case TARGET_NR_getgroups32: 4699 { 4700 int gidsetsize = arg1; 4701 uint32_t *target_grouplist; 4702 gid_t *grouplist; 4703 int i; 4704 4705 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4706 ret = get_errno(getgroups(gidsetsize, grouplist)); 4707 if (!is_error(ret)) { 4708 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 4709 for(i = 0;i < gidsetsize; i++) 4710 target_grouplist[i] = tswap32(grouplist[i]); 4711 unlock_user(target_grouplist, arg2, gidsetsize * 4); 4712 } 4713 } 4714 break; 4715 #endif 4716 #ifdef TARGET_NR_setgroups32 4717 case TARGET_NR_setgroups32: 4718 { 4719 int gidsetsize = arg1; 4720 uint32_t *target_grouplist; 4721 gid_t *grouplist; 4722 int i; 4723 4724 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4725 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 4726 for(i = 0;i < gidsetsize; i++) 4727 grouplist[i] = tswap32(target_grouplist[i]); 4728 unlock_user(target_grouplist, arg2, 0); 4729 ret = get_errno(setgroups(gidsetsize, grouplist)); 4730 } 4731 break; 4732 #endif 4733 #ifdef TARGET_NR_fchown32 4734 case TARGET_NR_fchown32: 4735 ret = get_errno(fchown(arg1, arg2, arg3)); 4736 break; 4737 #endif 4738 #ifdef TARGET_NR_setresuid32 4739 case TARGET_NR_setresuid32: 4740 ret = get_errno(setresuid(arg1, arg2, arg3)); 4741 break; 4742 #endif 4743 #ifdef TARGET_NR_getresuid32 4744 case TARGET_NR_getresuid32: 4745 { 4746 uid_t ruid, euid, suid; 4747 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4748 if (!is_error(ret)) { 4749 tput32(arg1, tswap32(ruid)); 4750 tput32(arg2, tswap32(euid)); 4751 tput32(arg3, tswap32(suid)); 4752 } 4753 } 4754 break; 4755 #endif 4756 #ifdef TARGET_NR_setresgid32 4757 case TARGET_NR_setresgid32: 4758 ret = get_errno(setresgid(arg1, arg2, arg3)); 4759 break; 4760 #endif 4761 #ifdef TARGET_NR_getresgid32 4762 case TARGET_NR_getresgid32: 4763 { 4764 gid_t rgid, egid, sgid; 4765 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4766 if (!is_error(ret)) { 4767 tput32(arg1, tswap32(rgid)); 4768 tput32(arg2, tswap32(egid)); 4769 tput32(arg3, tswap32(sgid)); 4770 } 4771 } 4772 break; 4773 #endif 4774 #ifdef TARGET_NR_chown32 4775 case TARGET_NR_chown32: 4776 p = lock_user_string(arg1); 4777 ret = get_errno(chown(p, arg2, arg3)); 4778 unlock_user(p, arg1, 0); 4779 break; 4780 #endif 4781 #ifdef TARGET_NR_setuid32 4782 case TARGET_NR_setuid32: 4783 ret = get_errno(setuid(arg1)); 4784 break; 4785 #endif 4786 #ifdef TARGET_NR_setgid32 4787 case TARGET_NR_setgid32: 4788 ret = get_errno(setgid(arg1)); 4789 break; 4790 #endif 4791 #ifdef TARGET_NR_setfsuid32 4792 case TARGET_NR_setfsuid32: 4793 ret = get_errno(setfsuid(arg1)); 4794 break; 4795 #endif 4796 #ifdef TARGET_NR_setfsgid32 4797 case TARGET_NR_setfsgid32: 4798 ret = get_errno(setfsgid(arg1)); 4799 break; 4800 #endif 4801 4802 case TARGET_NR_pivot_root: 4803 goto unimplemented; 4804 #ifdef TARGET_NR_mincore 4805 case TARGET_NR_mincore: 4806 goto unimplemented; 4807 #endif 4808 #ifdef TARGET_NR_madvise 4809 case TARGET_NR_madvise: 4810 /* A straight passthrough may not be safe because qemu sometimes 4811 turns private flie-backed mappings into anonymous mappings. 4812 This will break MADV_DONTNEED. 4813 This is a hint, so ignoring and returning success is ok. */ 4814 ret = get_errno(0); 4815 break; 4816 #endif 4817 #if TARGET_ABI_BITS == 32 4818 case TARGET_NR_fcntl64: 4819 { 4820 int cmd; 4821 struct flock64 fl; 4822 struct target_flock64 *target_fl; 4823 #ifdef TARGET_ARM 4824 struct target_eabi_flock64 *target_efl; 4825 #endif 4826 4827 switch(arg2){ 4828 case TARGET_F_GETLK64: 4829 cmd = F_GETLK64; 4830 break; 4831 case TARGET_F_SETLK64: 4832 cmd = F_SETLK64; 4833 break; 4834 case TARGET_F_SETLKW64: 4835 cmd = F_SETLK64; 4836 break; 4837 default: 4838 cmd = arg2; 4839 break; 4840 } 4841 4842 switch(arg2) { 4843 case TARGET_F_GETLK64: 4844 #ifdef TARGET_ARM 4845 if (((CPUARMState *)cpu_env)->eabi) { 4846 lock_user_struct(target_efl, arg3, 1); 4847 fl.l_type = tswap16(target_efl->l_type); 4848 fl.l_whence = tswap16(target_efl->l_whence); 4849 fl.l_start = tswap64(target_efl->l_start); 4850 fl.l_len = tswap64(target_efl->l_len); 4851 fl.l_pid = tswapl(target_efl->l_pid); 4852 unlock_user_struct(target_efl, arg3, 0); 4853 } else 4854 #endif 4855 { 4856 lock_user_struct(target_fl, arg3, 1); 4857 fl.l_type = tswap16(target_fl->l_type); 4858 fl.l_whence = tswap16(target_fl->l_whence); 4859 fl.l_start = tswap64(target_fl->l_start); 4860 fl.l_len = tswap64(target_fl->l_len); 4861 fl.l_pid = tswapl(target_fl->l_pid); 4862 unlock_user_struct(target_fl, arg3, 0); 4863 } 4864 ret = get_errno(fcntl(arg1, cmd, &fl)); 4865 if (ret == 0) { 4866 #ifdef TARGET_ARM 4867 if (((CPUARMState *)cpu_env)->eabi) { 4868 lock_user_struct(target_efl, arg3, 0); 4869 target_efl->l_type = tswap16(fl.l_type); 4870 target_efl->l_whence = tswap16(fl.l_whence); 4871 target_efl->l_start = tswap64(fl.l_start); 4872 target_efl->l_len = tswap64(fl.l_len); 4873 target_efl->l_pid = tswapl(fl.l_pid); 4874 unlock_user_struct(target_efl, arg3, 1); 4875 } else 4876 #endif 4877 { 4878 lock_user_struct(target_fl, arg3, 0); 4879 target_fl->l_type = tswap16(fl.l_type); 4880 target_fl->l_whence = tswap16(fl.l_whence); 4881 target_fl->l_start = tswap64(fl.l_start); 4882 target_fl->l_len = tswap64(fl.l_len); 4883 target_fl->l_pid = tswapl(fl.l_pid); 4884 unlock_user_struct(target_fl, arg3, 1); 4885 } 4886 } 4887 break; 4888 4889 case TARGET_F_SETLK64: 4890 case TARGET_F_SETLKW64: 4891 #ifdef TARGET_ARM 4892 if (((CPUARMState *)cpu_env)->eabi) { 4893 lock_user_struct(target_efl, arg3, 1); 4894 fl.l_type = tswap16(target_efl->l_type); 4895 fl.l_whence = tswap16(target_efl->l_whence); 4896 fl.l_start = tswap64(target_efl->l_start); 4897 fl.l_len = tswap64(target_efl->l_len); 4898 fl.l_pid = tswapl(target_efl->l_pid); 4899 unlock_user_struct(target_efl, arg3, 0); 4900 } else 4901 #endif 4902 { 4903 lock_user_struct(target_fl, arg3, 1); 4904 fl.l_type = tswap16(target_fl->l_type); 4905 fl.l_whence = tswap16(target_fl->l_whence); 4906 fl.l_start = tswap64(target_fl->l_start); 4907 fl.l_len = tswap64(target_fl->l_len); 4908 fl.l_pid = tswapl(target_fl->l_pid); 4909 unlock_user_struct(target_fl, arg3, 0); 4910 } 4911 ret = get_errno(fcntl(arg1, cmd, &fl)); 4912 break; 4913 default: 4914 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 4915 break; 4916 } 4917 break; 4918 } 4919 #endif 4920 #ifdef TARGET_NR_cacheflush 4921 case TARGET_NR_cacheflush: 4922 /* self-modifying code is handled automatically, so nothing needed */ 4923 ret = 0; 4924 break; 4925 #endif 4926 #ifdef TARGET_NR_security 4927 case TARGET_NR_security: 4928 goto unimplemented; 4929 #endif 4930 #ifdef TARGET_NR_getpagesize 4931 case TARGET_NR_getpagesize: 4932 ret = TARGET_PAGE_SIZE; 4933 break; 4934 #endif 4935 case TARGET_NR_gettid: 4936 ret = get_errno(gettid()); 4937 break; 4938 #ifdef TARGET_NR_readahead 4939 case TARGET_NR_readahead: 4940 goto unimplemented; 4941 #endif 4942 #ifdef TARGET_NR_setxattr 4943 case TARGET_NR_setxattr: 4944 case TARGET_NR_lsetxattr: 4945 case TARGET_NR_fsetxattr: 4946 case TARGET_NR_getxattr: 4947 case TARGET_NR_lgetxattr: 4948 case TARGET_NR_fgetxattr: 4949 case TARGET_NR_listxattr: 4950 case TARGET_NR_llistxattr: 4951 case TARGET_NR_flistxattr: 4952 case TARGET_NR_removexattr: 4953 case TARGET_NR_lremovexattr: 4954 case TARGET_NR_fremovexattr: 4955 goto unimplemented_nowarn; 4956 #endif 4957 #ifdef TARGET_NR_set_thread_area 4958 case TARGET_NR_set_thread_area: 4959 #ifdef TARGET_MIPS 4960 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 4961 ret = 0; 4962 break; 4963 #else 4964 goto unimplemented_nowarn; 4965 #endif 4966 #endif 4967 #ifdef TARGET_NR_get_thread_area 4968 case TARGET_NR_get_thread_area: 4969 goto unimplemented_nowarn; 4970 #endif 4971 #ifdef TARGET_NR_getdomainname 4972 case TARGET_NR_getdomainname: 4973 goto unimplemented_nowarn; 4974 #endif 4975 4976 #ifdef TARGET_NR_clock_gettime 4977 case TARGET_NR_clock_gettime: 4978 { 4979 struct timespec ts; 4980 ret = get_errno(clock_gettime(arg1, &ts)); 4981 if (!is_error(ret)) { 4982 host_to_target_timespec(arg2, &ts); 4983 } 4984 break; 4985 } 4986 #endif 4987 #ifdef TARGET_NR_clock_getres 4988 case TARGET_NR_clock_getres: 4989 { 4990 struct timespec ts; 4991 ret = get_errno(clock_getres(arg1, &ts)); 4992 if (!is_error(ret)) { 4993 host_to_target_timespec(arg2, &ts); 4994 } 4995 break; 4996 } 4997 #endif 4998 4999 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 5000 case TARGET_NR_set_tid_address: 5001 ret = get_errno(set_tid_address((int *) arg1)); 5002 break; 5003 #endif 5004 5005 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 5006 case TARGET_NR_tkill: 5007 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 5008 break; 5009 #endif 5010 5011 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 5012 case TARGET_NR_tgkill: 5013 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 5014 break; 5015 #endif 5016 5017 #ifdef TARGET_NR_set_robust_list 5018 case TARGET_NR_set_robust_list: 5019 goto unimplemented_nowarn; 5020 #endif 5021 5022 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 5023 case TARGET_NR_utimensat: 5024 { 5025 struct timespec ts[2]; 5026 target_to_host_timespec(ts, arg3); 5027 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 5028 if (!arg2) 5029 ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4)); 5030 else { 5031 p = lock_user_string(arg2); 5032 if (!access_ok(VERIFY_READ, p, 1)) 5033 /* Don't "goto fail" so that cleanup can happen. */ 5034 ret = -TARGET_EFAULT; 5035 else 5036 ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4)); 5037 if (p) 5038 unlock_user(p, arg2, 0); 5039 } 5040 } 5041 break; 5042 #endif 5043 5044 default: 5045 unimplemented: 5046 gemu_log("qemu: Unsupported syscall: %d\n", num); 5047 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 5048 unimplemented_nowarn: 5049 #endif 5050 ret = -TARGET_ENOSYS; 5051 break; 5052 } 5053 fail: 5054 #ifdef DEBUG 5055 gemu_log(" = %ld\n", ret); 5056 #endif 5057 if(do_strace) 5058 print_syscall_ret(num, ret); 5059 return ret; 5060 } 5061