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, see <http://www.gnu.org/licenses/>. 18 */ 19 #define _ATFILE_SOURCE 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 <limits.h> 31 #include <sys/types.h> 32 #include <sys/ipc.h> 33 #include <sys/msg.h> 34 #include <sys/wait.h> 35 #include <sys/time.h> 36 #include <sys/stat.h> 37 #include <sys/mount.h> 38 #include <sys/prctl.h> 39 #include <sys/resource.h> 40 #include <sys/mman.h> 41 #include <sys/swap.h> 42 #include <signal.h> 43 #include <sched.h> 44 #ifdef __ia64__ 45 int __clone2(int (*fn)(void *), void *child_stack_base, 46 size_t stack_size, int flags, void *arg, ...); 47 #endif 48 #include <sys/socket.h> 49 #include <sys/un.h> 50 #include <sys/uio.h> 51 #include <sys/poll.h> 52 #include <sys/times.h> 53 #include <sys/shm.h> 54 #include <sys/sem.h> 55 #include <sys/statfs.h> 56 #include <utime.h> 57 #include <sys/sysinfo.h> 58 #include <sys/utsname.h> 59 //#include <sys/user.h> 60 #include <netinet/ip.h> 61 #include <netinet/tcp.h> 62 #include <qemu-common.h> 63 #ifdef TARGET_GPROF 64 #include <sys/gmon.h> 65 #endif 66 #ifdef CONFIG_EVENTFD 67 #include <sys/eventfd.h> 68 #endif 69 70 #define termios host_termios 71 #define winsize host_winsize 72 #define termio host_termio 73 #define sgttyb host_sgttyb /* same as target */ 74 #define tchars host_tchars /* same as target */ 75 #define ltchars host_ltchars /* same as target */ 76 77 #include <linux/termios.h> 78 #include <linux/unistd.h> 79 #include <linux/utsname.h> 80 #include <linux/cdrom.h> 81 #include <linux/hdreg.h> 82 #include <linux/soundcard.h> 83 #include <linux/kd.h> 84 #include <linux/mtio.h> 85 #include <linux/fs.h> 86 #include <linux/fb.h> 87 #include <linux/vt.h> 88 #include "linux_loop.h" 89 #include "cpu-uname.h" 90 91 #include "qemu.h" 92 #include "qemu-common.h" 93 94 #if defined(CONFIG_USE_NPTL) 95 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \ 96 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID) 97 #else 98 /* XXX: Hardcode the above values. */ 99 #define CLONE_NPTL_FLAGS2 0 100 #endif 101 102 //#define DEBUG 103 104 //#include <linux/msdos_fs.h> 105 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2]) 106 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2]) 107 108 109 #undef _syscall0 110 #undef _syscall1 111 #undef _syscall2 112 #undef _syscall3 113 #undef _syscall4 114 #undef _syscall5 115 #undef _syscall6 116 117 #define _syscall0(type,name) \ 118 static type name (void) \ 119 { \ 120 return syscall(__NR_##name); \ 121 } 122 123 #define _syscall1(type,name,type1,arg1) \ 124 static type name (type1 arg1) \ 125 { \ 126 return syscall(__NR_##name, arg1); \ 127 } 128 129 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 130 static type name (type1 arg1,type2 arg2) \ 131 { \ 132 return syscall(__NR_##name, arg1, arg2); \ 133 } 134 135 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 136 static type name (type1 arg1,type2 arg2,type3 arg3) \ 137 { \ 138 return syscall(__NR_##name, arg1, arg2, arg3); \ 139 } 140 141 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 142 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 143 { \ 144 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 145 } 146 147 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 148 type5,arg5) \ 149 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 150 { \ 151 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 152 } 153 154 155 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 156 type5,arg5,type6,arg6) \ 157 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ 158 type6 arg6) \ 159 { \ 160 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 161 } 162 163 164 #define __NR_sys_uname __NR_uname 165 #define __NR_sys_faccessat __NR_faccessat 166 #define __NR_sys_fchmodat __NR_fchmodat 167 #define __NR_sys_fchownat __NR_fchownat 168 #define __NR_sys_fstatat64 __NR_fstatat64 169 #define __NR_sys_futimesat __NR_futimesat 170 #define __NR_sys_getcwd1 __NR_getcwd 171 #define __NR_sys_getdents __NR_getdents 172 #define __NR_sys_getdents64 __NR_getdents64 173 #define __NR_sys_getpriority __NR_getpriority 174 #define __NR_sys_linkat __NR_linkat 175 #define __NR_sys_mkdirat __NR_mkdirat 176 #define __NR_sys_mknodat __NR_mknodat 177 #define __NR_sys_newfstatat __NR_newfstatat 178 #define __NR_sys_openat __NR_openat 179 #define __NR_sys_readlinkat __NR_readlinkat 180 #define __NR_sys_renameat __NR_renameat 181 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 182 #define __NR_sys_symlinkat __NR_symlinkat 183 #define __NR_sys_syslog __NR_syslog 184 #define __NR_sys_tgkill __NR_tgkill 185 #define __NR_sys_tkill __NR_tkill 186 #define __NR_sys_unlinkat __NR_unlinkat 187 #define __NR_sys_utimensat __NR_utimensat 188 #define __NR_sys_futex __NR_futex 189 #define __NR_sys_inotify_init __NR_inotify_init 190 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch 191 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch 192 193 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 194 #define __NR__llseek __NR_lseek 195 #endif 196 197 #ifdef __NR_gettid 198 _syscall0(int, gettid) 199 #else 200 /* This is a replacement for the host gettid() and must return a host 201 errno. */ 202 static int gettid(void) { 203 return -ENOSYS; 204 } 205 #endif 206 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count); 207 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 208 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count); 209 #endif 210 _syscall2(int, sys_getpriority, int, which, int, who); 211 #if defined(TARGET_NR__llseek) && defined(__NR_llseek) 212 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 213 loff_t *, res, uint, wh); 214 #endif 215 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 216 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 217 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 218 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 219 #endif 220 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 221 _syscall2(int,sys_tkill,int,tid,int,sig) 222 #endif 223 #ifdef __NR_exit_group 224 _syscall1(int,exit_group,int,error_code) 225 #endif 226 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 227 _syscall1(int,set_tid_address,int *,tidptr) 228 #endif 229 #if defined(CONFIG_USE_NPTL) 230 #if defined(TARGET_NR_futex) && defined(__NR_futex) 231 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val, 232 const struct timespec *,timeout,int *,uaddr2,int,val3) 233 #endif 234 #endif 235 236 static bitmask_transtbl fcntl_flags_tbl[] = { 237 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 238 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 239 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 240 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 241 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 242 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 243 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 244 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 245 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 246 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 247 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 248 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 249 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 250 #if defined(O_DIRECT) 251 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 252 #endif 253 { 0, 0, 0, 0 } 254 }; 255 256 #define COPY_UTSNAME_FIELD(dest, src) \ 257 do { \ 258 /* __NEW_UTS_LEN doesn't include terminating null */ \ 259 (void) strncpy((dest), (src), __NEW_UTS_LEN); \ 260 (dest)[__NEW_UTS_LEN] = '\0'; \ 261 } while (0) 262 263 static int sys_uname(struct new_utsname *buf) 264 { 265 struct utsname uts_buf; 266 267 if (uname(&uts_buf) < 0) 268 return (-1); 269 270 /* 271 * Just in case these have some differences, we 272 * translate utsname to new_utsname (which is the 273 * struct linux kernel uses). 274 */ 275 276 bzero(buf, sizeof (*buf)); 277 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname); 278 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename); 279 COPY_UTSNAME_FIELD(buf->release, uts_buf.release); 280 COPY_UTSNAME_FIELD(buf->version, uts_buf.version); 281 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine); 282 #ifdef _GNU_SOURCE 283 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname); 284 #endif 285 return (0); 286 287 #undef COPY_UTSNAME_FIELD 288 } 289 290 static int sys_getcwd1(char *buf, size_t size) 291 { 292 if (getcwd(buf, size) == NULL) { 293 /* getcwd() sets errno */ 294 return (-1); 295 } 296 return strlen(buf)+1; 297 } 298 299 #ifdef CONFIG_ATFILE 300 /* 301 * Host system seems to have atfile syscall stubs available. We 302 * now enable them one by one as specified by target syscall_nr.h. 303 */ 304 305 #ifdef TARGET_NR_faccessat 306 static int sys_faccessat(int dirfd, const char *pathname, int mode) 307 { 308 return (faccessat(dirfd, pathname, mode, 0)); 309 } 310 #endif 311 #ifdef TARGET_NR_fchmodat 312 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode) 313 { 314 return (fchmodat(dirfd, pathname, mode, 0)); 315 } 316 #endif 317 #if defined(TARGET_NR_fchownat) && defined(USE_UID16) 318 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner, 319 gid_t group, int flags) 320 { 321 return (fchownat(dirfd, pathname, owner, group, flags)); 322 } 323 #endif 324 #ifdef __NR_fstatat64 325 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf, 326 int flags) 327 { 328 return (fstatat(dirfd, pathname, buf, flags)); 329 } 330 #endif 331 #ifdef __NR_newfstatat 332 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf, 333 int flags) 334 { 335 return (fstatat(dirfd, pathname, buf, flags)); 336 } 337 #endif 338 #ifdef TARGET_NR_futimesat 339 static int sys_futimesat(int dirfd, const char *pathname, 340 const struct timeval times[2]) 341 { 342 return (futimesat(dirfd, pathname, times)); 343 } 344 #endif 345 #ifdef TARGET_NR_linkat 346 static int sys_linkat(int olddirfd, const char *oldpath, 347 int newdirfd, const char *newpath, int flags) 348 { 349 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags)); 350 } 351 #endif 352 #ifdef TARGET_NR_mkdirat 353 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode) 354 { 355 return (mkdirat(dirfd, pathname, mode)); 356 } 357 #endif 358 #ifdef TARGET_NR_mknodat 359 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode, 360 dev_t dev) 361 { 362 return (mknodat(dirfd, pathname, mode, dev)); 363 } 364 #endif 365 #ifdef TARGET_NR_openat 366 static int sys_openat(int dirfd, const char *pathname, int flags, ...) 367 { 368 /* 369 * open(2) has extra parameter 'mode' when called with 370 * flag O_CREAT. 371 */ 372 if ((flags & O_CREAT) != 0) { 373 va_list ap; 374 mode_t mode; 375 376 /* 377 * Get the 'mode' parameter and translate it to 378 * host bits. 379 */ 380 va_start(ap, flags); 381 mode = va_arg(ap, mode_t); 382 mode = target_to_host_bitmask(mode, fcntl_flags_tbl); 383 va_end(ap); 384 385 return (openat(dirfd, pathname, flags, mode)); 386 } 387 return (openat(dirfd, pathname, flags)); 388 } 389 #endif 390 #ifdef TARGET_NR_readlinkat 391 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) 392 { 393 return (readlinkat(dirfd, pathname, buf, bufsiz)); 394 } 395 #endif 396 #ifdef TARGET_NR_renameat 397 static int sys_renameat(int olddirfd, const char *oldpath, 398 int newdirfd, const char *newpath) 399 { 400 return (renameat(olddirfd, oldpath, newdirfd, newpath)); 401 } 402 #endif 403 #ifdef TARGET_NR_symlinkat 404 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath) 405 { 406 return (symlinkat(oldpath, newdirfd, newpath)); 407 } 408 #endif 409 #ifdef TARGET_NR_unlinkat 410 static int sys_unlinkat(int dirfd, const char *pathname, int flags) 411 { 412 return (unlinkat(dirfd, pathname, flags)); 413 } 414 #endif 415 #else /* !CONFIG_ATFILE */ 416 417 /* 418 * Try direct syscalls instead 419 */ 420 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 421 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode) 422 #endif 423 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 424 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode) 425 #endif 426 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16) 427 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname, 428 uid_t,owner,gid_t,group,int,flags) 429 #endif 430 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \ 431 defined(__NR_fstatat64) 432 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname, 433 struct stat *,buf,int,flags) 434 #endif 435 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat) 436 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname, 437 const struct timeval *,times) 438 #endif 439 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \ 440 defined(__NR_newfstatat) 441 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname, 442 struct stat *,buf,int,flags) 443 #endif 444 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 445 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath, 446 int,newdirfd,const char *,newpath,int,flags) 447 #endif 448 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 449 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 450 #endif 451 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 452 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname, 453 mode_t,mode,dev_t,dev) 454 #endif 455 #if defined(TARGET_NR_openat) && defined(__NR_openat) 456 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 457 #endif 458 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 459 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname, 460 char *,buf,size_t,bufsize) 461 #endif 462 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 463 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath, 464 int,newdirfd,const char *,newpath) 465 #endif 466 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 467 _syscall3(int,sys_symlinkat,const char *,oldpath, 468 int,newdirfd,const char *,newpath) 469 #endif 470 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 471 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) 472 #endif 473 474 #endif /* CONFIG_ATFILE */ 475 476 #ifdef CONFIG_UTIMENSAT 477 static int sys_utimensat(int dirfd, const char *pathname, 478 const struct timespec times[2], int flags) 479 { 480 if (pathname == NULL) 481 return futimens(dirfd, times); 482 else 483 return utimensat(dirfd, pathname, times, flags); 484 } 485 #else 486 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 487 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, 488 const struct timespec *,tsp,int,flags) 489 #endif 490 #endif /* CONFIG_UTIMENSAT */ 491 492 #ifdef CONFIG_INOTIFY 493 #include <sys/inotify.h> 494 495 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) 496 static int sys_inotify_init(void) 497 { 498 return (inotify_init()); 499 } 500 #endif 501 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) 502 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask) 503 { 504 return (inotify_add_watch(fd, pathname, mask)); 505 } 506 #endif 507 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) 508 static int sys_inotify_rm_watch(int fd, int32_t wd) 509 { 510 return (inotify_rm_watch(fd, wd)); 511 } 512 #endif 513 #ifdef CONFIG_INOTIFY1 514 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) 515 static int sys_inotify_init1(int flags) 516 { 517 return (inotify_init1(flags)); 518 } 519 #endif 520 #endif 521 #else 522 /* Userspace can usually survive runtime without inotify */ 523 #undef TARGET_NR_inotify_init 524 #undef TARGET_NR_inotify_init1 525 #undef TARGET_NR_inotify_add_watch 526 #undef TARGET_NR_inotify_rm_watch 527 #endif /* CONFIG_INOTIFY */ 528 529 530 extern int personality(int); 531 extern int flock(int, int); 532 extern int setfsuid(int); 533 extern int setfsgid(int); 534 extern int setgroups(int, gid_t *); 535 536 #define ERRNO_TABLE_SIZE 1200 537 538 /* target_to_host_errno_table[] is initialized from 539 * host_to_target_errno_table[] in syscall_init(). */ 540 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { 541 }; 542 543 /* 544 * This list is the union of errno values overridden in asm-<arch>/errno.h 545 * minus the errnos that are not actually generic to all archs. 546 */ 547 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { 548 [EIDRM] = TARGET_EIDRM, 549 [ECHRNG] = TARGET_ECHRNG, 550 [EL2NSYNC] = TARGET_EL2NSYNC, 551 [EL3HLT] = TARGET_EL3HLT, 552 [EL3RST] = TARGET_EL3RST, 553 [ELNRNG] = TARGET_ELNRNG, 554 [EUNATCH] = TARGET_EUNATCH, 555 [ENOCSI] = TARGET_ENOCSI, 556 [EL2HLT] = TARGET_EL2HLT, 557 [EDEADLK] = TARGET_EDEADLK, 558 [ENOLCK] = TARGET_ENOLCK, 559 [EBADE] = TARGET_EBADE, 560 [EBADR] = TARGET_EBADR, 561 [EXFULL] = TARGET_EXFULL, 562 [ENOANO] = TARGET_ENOANO, 563 [EBADRQC] = TARGET_EBADRQC, 564 [EBADSLT] = TARGET_EBADSLT, 565 [EBFONT] = TARGET_EBFONT, 566 [ENOSTR] = TARGET_ENOSTR, 567 [ENODATA] = TARGET_ENODATA, 568 [ETIME] = TARGET_ETIME, 569 [ENOSR] = TARGET_ENOSR, 570 [ENONET] = TARGET_ENONET, 571 [ENOPKG] = TARGET_ENOPKG, 572 [EREMOTE] = TARGET_EREMOTE, 573 [ENOLINK] = TARGET_ENOLINK, 574 [EADV] = TARGET_EADV, 575 [ESRMNT] = TARGET_ESRMNT, 576 [ECOMM] = TARGET_ECOMM, 577 [EPROTO] = TARGET_EPROTO, 578 [EDOTDOT] = TARGET_EDOTDOT, 579 [EMULTIHOP] = TARGET_EMULTIHOP, 580 [EBADMSG] = TARGET_EBADMSG, 581 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 582 [EOVERFLOW] = TARGET_EOVERFLOW, 583 [ENOTUNIQ] = TARGET_ENOTUNIQ, 584 [EBADFD] = TARGET_EBADFD, 585 [EREMCHG] = TARGET_EREMCHG, 586 [ELIBACC] = TARGET_ELIBACC, 587 [ELIBBAD] = TARGET_ELIBBAD, 588 [ELIBSCN] = TARGET_ELIBSCN, 589 [ELIBMAX] = TARGET_ELIBMAX, 590 [ELIBEXEC] = TARGET_ELIBEXEC, 591 [EILSEQ] = TARGET_EILSEQ, 592 [ENOSYS] = TARGET_ENOSYS, 593 [ELOOP] = TARGET_ELOOP, 594 [ERESTART] = TARGET_ERESTART, 595 [ESTRPIPE] = TARGET_ESTRPIPE, 596 [ENOTEMPTY] = TARGET_ENOTEMPTY, 597 [EUSERS] = TARGET_EUSERS, 598 [ENOTSOCK] = TARGET_ENOTSOCK, 599 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 600 [EMSGSIZE] = TARGET_EMSGSIZE, 601 [EPROTOTYPE] = TARGET_EPROTOTYPE, 602 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 603 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 604 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 605 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 606 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 607 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 608 [EADDRINUSE] = TARGET_EADDRINUSE, 609 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 610 [ENETDOWN] = TARGET_ENETDOWN, 611 [ENETUNREACH] = TARGET_ENETUNREACH, 612 [ENETRESET] = TARGET_ENETRESET, 613 [ECONNABORTED] = TARGET_ECONNABORTED, 614 [ECONNRESET] = TARGET_ECONNRESET, 615 [ENOBUFS] = TARGET_ENOBUFS, 616 [EISCONN] = TARGET_EISCONN, 617 [ENOTCONN] = TARGET_ENOTCONN, 618 [EUCLEAN] = TARGET_EUCLEAN, 619 [ENOTNAM] = TARGET_ENOTNAM, 620 [ENAVAIL] = TARGET_ENAVAIL, 621 [EISNAM] = TARGET_EISNAM, 622 [EREMOTEIO] = TARGET_EREMOTEIO, 623 [ESHUTDOWN] = TARGET_ESHUTDOWN, 624 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 625 [ETIMEDOUT] = TARGET_ETIMEDOUT, 626 [ECONNREFUSED] = TARGET_ECONNREFUSED, 627 [EHOSTDOWN] = TARGET_EHOSTDOWN, 628 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 629 [EALREADY] = TARGET_EALREADY, 630 [EINPROGRESS] = TARGET_EINPROGRESS, 631 [ESTALE] = TARGET_ESTALE, 632 [ECANCELED] = TARGET_ECANCELED, 633 [ENOMEDIUM] = TARGET_ENOMEDIUM, 634 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 635 #ifdef ENOKEY 636 [ENOKEY] = TARGET_ENOKEY, 637 #endif 638 #ifdef EKEYEXPIRED 639 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 640 #endif 641 #ifdef EKEYREVOKED 642 [EKEYREVOKED] = TARGET_EKEYREVOKED, 643 #endif 644 #ifdef EKEYREJECTED 645 [EKEYREJECTED] = TARGET_EKEYREJECTED, 646 #endif 647 #ifdef EOWNERDEAD 648 [EOWNERDEAD] = TARGET_EOWNERDEAD, 649 #endif 650 #ifdef ENOTRECOVERABLE 651 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 652 #endif 653 }; 654 655 static inline int host_to_target_errno(int err) 656 { 657 if(host_to_target_errno_table[err]) 658 return host_to_target_errno_table[err]; 659 return err; 660 } 661 662 static inline int target_to_host_errno(int err) 663 { 664 if (target_to_host_errno_table[err]) 665 return target_to_host_errno_table[err]; 666 return err; 667 } 668 669 static inline abi_long get_errno(abi_long ret) 670 { 671 if (ret == -1) 672 return -host_to_target_errno(errno); 673 else 674 return ret; 675 } 676 677 static inline int is_error(abi_long ret) 678 { 679 return (abi_ulong)ret >= (abi_ulong)(-4096); 680 } 681 682 char *target_strerror(int err) 683 { 684 return strerror(target_to_host_errno(err)); 685 } 686 687 static abi_ulong target_brk; 688 static abi_ulong target_original_brk; 689 690 void target_set_brk(abi_ulong new_brk) 691 { 692 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 693 } 694 695 /* do_brk() must return target values and target errnos. */ 696 abi_long do_brk(abi_ulong new_brk) 697 { 698 abi_ulong brk_page; 699 abi_long mapped_addr; 700 int new_alloc_size; 701 702 if (!new_brk) 703 return target_brk; 704 if (new_brk < target_original_brk) 705 return target_brk; 706 707 brk_page = HOST_PAGE_ALIGN(target_brk); 708 709 /* If the new brk is less than this, set it and we're done... */ 710 if (new_brk < brk_page) { 711 target_brk = new_brk; 712 return target_brk; 713 } 714 715 /* We need to allocate more memory after the brk... */ 716 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 717 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 718 PROT_READ|PROT_WRITE, 719 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 720 721 #if defined(TARGET_ALPHA) 722 /* We (partially) emulate OSF/1 on Alpha, which requires we 723 return a proper errno, not an unchanged brk value. */ 724 if (is_error(mapped_addr)) { 725 return -TARGET_ENOMEM; 726 } 727 #endif 728 729 if (!is_error(mapped_addr)) { 730 target_brk = new_brk; 731 } 732 return target_brk; 733 } 734 735 static inline abi_long copy_from_user_fdset(fd_set *fds, 736 abi_ulong target_fds_addr, 737 int n) 738 { 739 int i, nw, j, k; 740 abi_ulong b, *target_fds; 741 742 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 743 if (!(target_fds = lock_user(VERIFY_READ, 744 target_fds_addr, 745 sizeof(abi_ulong) * nw, 746 1))) 747 return -TARGET_EFAULT; 748 749 FD_ZERO(fds); 750 k = 0; 751 for (i = 0; i < nw; i++) { 752 /* grab the abi_ulong */ 753 __get_user(b, &target_fds[i]); 754 for (j = 0; j < TARGET_ABI_BITS; j++) { 755 /* check the bit inside the abi_ulong */ 756 if ((b >> j) & 1) 757 FD_SET(k, fds); 758 k++; 759 } 760 } 761 762 unlock_user(target_fds, target_fds_addr, 0); 763 764 return 0; 765 } 766 767 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr, 768 const fd_set *fds, 769 int n) 770 { 771 int i, nw, j, k; 772 abi_long v; 773 abi_ulong *target_fds; 774 775 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 776 if (!(target_fds = lock_user(VERIFY_WRITE, 777 target_fds_addr, 778 sizeof(abi_ulong) * nw, 779 0))) 780 return -TARGET_EFAULT; 781 782 k = 0; 783 for (i = 0; i < nw; i++) { 784 v = 0; 785 for (j = 0; j < TARGET_ABI_BITS; j++) { 786 v |= ((FD_ISSET(k, fds) != 0) << j); 787 k++; 788 } 789 __put_user(v, &target_fds[i]); 790 } 791 792 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw); 793 794 return 0; 795 } 796 797 #if defined(__alpha__) 798 #define HOST_HZ 1024 799 #else 800 #define HOST_HZ 100 801 #endif 802 803 static inline abi_long host_to_target_clock_t(long ticks) 804 { 805 #if HOST_HZ == TARGET_HZ 806 return ticks; 807 #else 808 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 809 #endif 810 } 811 812 static inline abi_long host_to_target_rusage(abi_ulong target_addr, 813 const struct rusage *rusage) 814 { 815 struct target_rusage *target_rusage; 816 817 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) 818 return -TARGET_EFAULT; 819 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 820 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 821 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 822 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 823 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 824 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 825 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 826 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 827 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 828 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 829 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 830 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 831 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 832 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 833 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 834 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 835 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 836 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 837 unlock_user_struct(target_rusage, target_addr, 1); 838 839 return 0; 840 } 841 842 static inline rlim_t target_to_host_rlim(target_ulong target_rlim) 843 { 844 if (target_rlim == TARGET_RLIM_INFINITY) 845 return RLIM_INFINITY; 846 else 847 return tswapl(target_rlim); 848 } 849 850 static inline target_ulong host_to_target_rlim(rlim_t rlim) 851 { 852 if (rlim == RLIM_INFINITY || rlim != (target_long)rlim) 853 return TARGET_RLIM_INFINITY; 854 else 855 return tswapl(rlim); 856 } 857 858 static inline abi_long copy_from_user_timeval(struct timeval *tv, 859 abi_ulong target_tv_addr) 860 { 861 struct target_timeval *target_tv; 862 863 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) 864 return -TARGET_EFAULT; 865 866 __get_user(tv->tv_sec, &target_tv->tv_sec); 867 __get_user(tv->tv_usec, &target_tv->tv_usec); 868 869 unlock_user_struct(target_tv, target_tv_addr, 0); 870 871 return 0; 872 } 873 874 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr, 875 const struct timeval *tv) 876 { 877 struct target_timeval *target_tv; 878 879 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) 880 return -TARGET_EFAULT; 881 882 __put_user(tv->tv_sec, &target_tv->tv_sec); 883 __put_user(tv->tv_usec, &target_tv->tv_usec); 884 885 unlock_user_struct(target_tv, target_tv_addr, 1); 886 887 return 0; 888 } 889 890 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) 891 #include <mqueue.h> 892 893 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr, 894 abi_ulong target_mq_attr_addr) 895 { 896 struct target_mq_attr *target_mq_attr; 897 898 if (!lock_user_struct(VERIFY_READ, target_mq_attr, 899 target_mq_attr_addr, 1)) 900 return -TARGET_EFAULT; 901 902 __get_user(attr->mq_flags, &target_mq_attr->mq_flags); 903 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); 904 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); 905 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); 906 907 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0); 908 909 return 0; 910 } 911 912 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr, 913 const struct mq_attr *attr) 914 { 915 struct target_mq_attr *target_mq_attr; 916 917 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr, 918 target_mq_attr_addr, 0)) 919 return -TARGET_EFAULT; 920 921 __put_user(attr->mq_flags, &target_mq_attr->mq_flags); 922 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); 923 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); 924 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); 925 926 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1); 927 928 return 0; 929 } 930 #endif 931 932 /* do_select() must return target values and target errnos. */ 933 static abi_long do_select(int n, 934 abi_ulong rfd_addr, abi_ulong wfd_addr, 935 abi_ulong efd_addr, abi_ulong target_tv_addr) 936 { 937 fd_set rfds, wfds, efds; 938 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 939 struct timeval tv, *tv_ptr; 940 abi_long ret; 941 942 if (rfd_addr) { 943 if (copy_from_user_fdset(&rfds, rfd_addr, n)) 944 return -TARGET_EFAULT; 945 rfds_ptr = &rfds; 946 } else { 947 rfds_ptr = NULL; 948 } 949 if (wfd_addr) { 950 if (copy_from_user_fdset(&wfds, wfd_addr, n)) 951 return -TARGET_EFAULT; 952 wfds_ptr = &wfds; 953 } else { 954 wfds_ptr = NULL; 955 } 956 if (efd_addr) { 957 if (copy_from_user_fdset(&efds, efd_addr, n)) 958 return -TARGET_EFAULT; 959 efds_ptr = &efds; 960 } else { 961 efds_ptr = NULL; 962 } 963 964 if (target_tv_addr) { 965 if (copy_from_user_timeval(&tv, target_tv_addr)) 966 return -TARGET_EFAULT; 967 tv_ptr = &tv; 968 } else { 969 tv_ptr = NULL; 970 } 971 972 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 973 974 if (!is_error(ret)) { 975 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) 976 return -TARGET_EFAULT; 977 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) 978 return -TARGET_EFAULT; 979 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) 980 return -TARGET_EFAULT; 981 982 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv)) 983 return -TARGET_EFAULT; 984 } 985 986 return ret; 987 } 988 989 static abi_long do_pipe2(int host_pipe[], int flags) 990 { 991 #ifdef CONFIG_PIPE2 992 return pipe2(host_pipe, flags); 993 #else 994 return -ENOSYS; 995 #endif 996 } 997 998 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes, 999 int flags, int is_pipe2) 1000 { 1001 int host_pipe[2]; 1002 abi_long ret; 1003 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe); 1004 1005 if (is_error(ret)) 1006 return get_errno(ret); 1007 1008 /* Several targets have special calling conventions for the original 1009 pipe syscall, but didn't replicate this into the pipe2 syscall. */ 1010 if (!is_pipe2) { 1011 #if defined(TARGET_ALPHA) 1012 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1]; 1013 return host_pipe[0]; 1014 #elif defined(TARGET_MIPS) 1015 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1]; 1016 return host_pipe[0]; 1017 #elif defined(TARGET_SH4) 1018 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1]; 1019 return host_pipe[0]; 1020 #endif 1021 } 1022 1023 if (put_user_s32(host_pipe[0], pipedes) 1024 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0]))) 1025 return -TARGET_EFAULT; 1026 return get_errno(ret); 1027 } 1028 1029 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn, 1030 abi_ulong target_addr, 1031 socklen_t len) 1032 { 1033 struct target_ip_mreqn *target_smreqn; 1034 1035 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1); 1036 if (!target_smreqn) 1037 return -TARGET_EFAULT; 1038 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr; 1039 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr; 1040 if (len == sizeof(struct target_ip_mreqn)) 1041 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex); 1042 unlock_user(target_smreqn, target_addr, 0); 1043 1044 return 0; 1045 } 1046 1047 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr, 1048 abi_ulong target_addr, 1049 socklen_t len) 1050 { 1051 const socklen_t unix_maxlen = sizeof (struct sockaddr_un); 1052 sa_family_t sa_family; 1053 struct target_sockaddr *target_saddr; 1054 1055 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); 1056 if (!target_saddr) 1057 return -TARGET_EFAULT; 1058 1059 sa_family = tswap16(target_saddr->sa_family); 1060 1061 /* Oops. The caller might send a incomplete sun_path; sun_path 1062 * must be terminated by \0 (see the manual page), but 1063 * unfortunately it is quite common to specify sockaddr_un 1064 * length as "strlen(x->sun_path)" while it should be 1065 * "strlen(...) + 1". We'll fix that here if needed. 1066 * Linux kernel has a similar feature. 1067 */ 1068 1069 if (sa_family == AF_UNIX) { 1070 if (len < unix_maxlen && len > 0) { 1071 char *cp = (char*)target_saddr; 1072 1073 if ( cp[len-1] && !cp[len] ) 1074 len++; 1075 } 1076 if (len > unix_maxlen) 1077 len = unix_maxlen; 1078 } 1079 1080 memcpy(addr, target_saddr, len); 1081 addr->sa_family = sa_family; 1082 unlock_user(target_saddr, target_addr, 0); 1083 1084 return 0; 1085 } 1086 1087 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, 1088 struct sockaddr *addr, 1089 socklen_t len) 1090 { 1091 struct target_sockaddr *target_saddr; 1092 1093 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); 1094 if (!target_saddr) 1095 return -TARGET_EFAULT; 1096 memcpy(target_saddr, addr, len); 1097 target_saddr->sa_family = tswap16(addr->sa_family); 1098 unlock_user(target_saddr, target_addr, len); 1099 1100 return 0; 1101 } 1102 1103 /* ??? Should this also swap msgh->name? */ 1104 static inline abi_long target_to_host_cmsg(struct msghdr *msgh, 1105 struct target_msghdr *target_msgh) 1106 { 1107 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 1108 abi_long msg_controllen; 1109 abi_ulong target_cmsg_addr; 1110 struct target_cmsghdr *target_cmsg; 1111 socklen_t space = 0; 1112 1113 msg_controllen = tswapl(target_msgh->msg_controllen); 1114 if (msg_controllen < sizeof (struct target_cmsghdr)) 1115 goto the_end; 1116 target_cmsg_addr = tswapl(target_msgh->msg_control); 1117 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); 1118 if (!target_cmsg) 1119 return -TARGET_EFAULT; 1120 1121 while (cmsg && target_cmsg) { 1122 void *data = CMSG_DATA(cmsg); 1123 void *target_data = TARGET_CMSG_DATA(target_cmsg); 1124 1125 int len = tswapl(target_cmsg->cmsg_len) 1126 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 1127 1128 space += CMSG_SPACE(len); 1129 if (space > msgh->msg_controllen) { 1130 space -= CMSG_SPACE(len); 1131 gemu_log("Host cmsg overflow\n"); 1132 break; 1133 } 1134 1135 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 1136 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 1137 cmsg->cmsg_len = CMSG_LEN(len); 1138 1139 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 1140 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 1141 memcpy(data, target_data, len); 1142 } else { 1143 int *fd = (int *)data; 1144 int *target_fd = (int *)target_data; 1145 int i, numfds = len / sizeof(int); 1146 1147 for (i = 0; i < numfds; i++) 1148 fd[i] = tswap32(target_fd[i]); 1149 } 1150 1151 cmsg = CMSG_NXTHDR(msgh, cmsg); 1152 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 1153 } 1154 unlock_user(target_cmsg, target_cmsg_addr, 0); 1155 the_end: 1156 msgh->msg_controllen = space; 1157 return 0; 1158 } 1159 1160 /* ??? Should this also swap msgh->name? */ 1161 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, 1162 struct msghdr *msgh) 1163 { 1164 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 1165 abi_long msg_controllen; 1166 abi_ulong target_cmsg_addr; 1167 struct target_cmsghdr *target_cmsg; 1168 socklen_t space = 0; 1169 1170 msg_controllen = tswapl(target_msgh->msg_controllen); 1171 if (msg_controllen < sizeof (struct target_cmsghdr)) 1172 goto the_end; 1173 target_cmsg_addr = tswapl(target_msgh->msg_control); 1174 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); 1175 if (!target_cmsg) 1176 return -TARGET_EFAULT; 1177 1178 while (cmsg && target_cmsg) { 1179 void *data = CMSG_DATA(cmsg); 1180 void *target_data = TARGET_CMSG_DATA(target_cmsg); 1181 1182 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 1183 1184 space += TARGET_CMSG_SPACE(len); 1185 if (space > msg_controllen) { 1186 space -= TARGET_CMSG_SPACE(len); 1187 gemu_log("Target cmsg overflow\n"); 1188 break; 1189 } 1190 1191 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 1192 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 1193 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 1194 1195 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 1196 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 1197 memcpy(target_data, data, len); 1198 } else { 1199 int *fd = (int *)data; 1200 int *target_fd = (int *)target_data; 1201 int i, numfds = len / sizeof(int); 1202 1203 for (i = 0; i < numfds; i++) 1204 target_fd[i] = tswap32(fd[i]); 1205 } 1206 1207 cmsg = CMSG_NXTHDR(msgh, cmsg); 1208 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 1209 } 1210 unlock_user(target_cmsg, target_cmsg_addr, space); 1211 the_end: 1212 target_msgh->msg_controllen = tswapl(space); 1213 return 0; 1214 } 1215 1216 /* do_setsockopt() Must return target values and target errnos. */ 1217 static abi_long do_setsockopt(int sockfd, int level, int optname, 1218 abi_ulong optval_addr, socklen_t optlen) 1219 { 1220 abi_long ret; 1221 int val; 1222 struct ip_mreqn *ip_mreq; 1223 struct ip_mreq_source *ip_mreq_source; 1224 1225 switch(level) { 1226 case SOL_TCP: 1227 /* TCP options all take an 'int' value. */ 1228 if (optlen < sizeof(uint32_t)) 1229 return -TARGET_EINVAL; 1230 1231 if (get_user_u32(val, optval_addr)) 1232 return -TARGET_EFAULT; 1233 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 1234 break; 1235 case SOL_IP: 1236 switch(optname) { 1237 case IP_TOS: 1238 case IP_TTL: 1239 case IP_HDRINCL: 1240 case IP_ROUTER_ALERT: 1241 case IP_RECVOPTS: 1242 case IP_RETOPTS: 1243 case IP_PKTINFO: 1244 case IP_MTU_DISCOVER: 1245 case IP_RECVERR: 1246 case IP_RECVTOS: 1247 #ifdef IP_FREEBIND 1248 case IP_FREEBIND: 1249 #endif 1250 case IP_MULTICAST_TTL: 1251 case IP_MULTICAST_LOOP: 1252 val = 0; 1253 if (optlen >= sizeof(uint32_t)) { 1254 if (get_user_u32(val, optval_addr)) 1255 return -TARGET_EFAULT; 1256 } else if (optlen >= 1) { 1257 if (get_user_u8(val, optval_addr)) 1258 return -TARGET_EFAULT; 1259 } 1260 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 1261 break; 1262 case IP_ADD_MEMBERSHIP: 1263 case IP_DROP_MEMBERSHIP: 1264 if (optlen < sizeof (struct target_ip_mreq) || 1265 optlen > sizeof (struct target_ip_mreqn)) 1266 return -TARGET_EINVAL; 1267 1268 ip_mreq = (struct ip_mreqn *) alloca(optlen); 1269 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen); 1270 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen)); 1271 break; 1272 1273 case IP_BLOCK_SOURCE: 1274 case IP_UNBLOCK_SOURCE: 1275 case IP_ADD_SOURCE_MEMBERSHIP: 1276 case IP_DROP_SOURCE_MEMBERSHIP: 1277 if (optlen != sizeof (struct target_ip_mreq_source)) 1278 return -TARGET_EINVAL; 1279 1280 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1); 1281 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen)); 1282 unlock_user (ip_mreq_source, optval_addr, 0); 1283 break; 1284 1285 default: 1286 goto unimplemented; 1287 } 1288 break; 1289 case TARGET_SOL_SOCKET: 1290 switch (optname) { 1291 /* Options with 'int' argument. */ 1292 case TARGET_SO_DEBUG: 1293 optname = SO_DEBUG; 1294 break; 1295 case TARGET_SO_REUSEADDR: 1296 optname = SO_REUSEADDR; 1297 break; 1298 case TARGET_SO_TYPE: 1299 optname = SO_TYPE; 1300 break; 1301 case TARGET_SO_ERROR: 1302 optname = SO_ERROR; 1303 break; 1304 case TARGET_SO_DONTROUTE: 1305 optname = SO_DONTROUTE; 1306 break; 1307 case TARGET_SO_BROADCAST: 1308 optname = SO_BROADCAST; 1309 break; 1310 case TARGET_SO_SNDBUF: 1311 optname = SO_SNDBUF; 1312 break; 1313 case TARGET_SO_RCVBUF: 1314 optname = SO_RCVBUF; 1315 break; 1316 case TARGET_SO_KEEPALIVE: 1317 optname = SO_KEEPALIVE; 1318 break; 1319 case TARGET_SO_OOBINLINE: 1320 optname = SO_OOBINLINE; 1321 break; 1322 case TARGET_SO_NO_CHECK: 1323 optname = SO_NO_CHECK; 1324 break; 1325 case TARGET_SO_PRIORITY: 1326 optname = SO_PRIORITY; 1327 break; 1328 #ifdef SO_BSDCOMPAT 1329 case TARGET_SO_BSDCOMPAT: 1330 optname = SO_BSDCOMPAT; 1331 break; 1332 #endif 1333 case TARGET_SO_PASSCRED: 1334 optname = SO_PASSCRED; 1335 break; 1336 case TARGET_SO_TIMESTAMP: 1337 optname = SO_TIMESTAMP; 1338 break; 1339 case TARGET_SO_RCVLOWAT: 1340 optname = SO_RCVLOWAT; 1341 break; 1342 case TARGET_SO_RCVTIMEO: 1343 optname = SO_RCVTIMEO; 1344 break; 1345 case TARGET_SO_SNDTIMEO: 1346 optname = SO_SNDTIMEO; 1347 break; 1348 break; 1349 default: 1350 goto unimplemented; 1351 } 1352 if (optlen < sizeof(uint32_t)) 1353 return -TARGET_EINVAL; 1354 1355 if (get_user_u32(val, optval_addr)) 1356 return -TARGET_EFAULT; 1357 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 1358 break; 1359 default: 1360 unimplemented: 1361 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 1362 ret = -TARGET_ENOPROTOOPT; 1363 } 1364 return ret; 1365 } 1366 1367 /* do_getsockopt() Must return target values and target errnos. */ 1368 static abi_long do_getsockopt(int sockfd, int level, int optname, 1369 abi_ulong optval_addr, abi_ulong optlen) 1370 { 1371 abi_long ret; 1372 int len, val; 1373 socklen_t lv; 1374 1375 switch(level) { 1376 case TARGET_SOL_SOCKET: 1377 level = SOL_SOCKET; 1378 switch (optname) { 1379 case TARGET_SO_LINGER: 1380 case TARGET_SO_RCVTIMEO: 1381 case TARGET_SO_SNDTIMEO: 1382 case TARGET_SO_PEERCRED: 1383 case TARGET_SO_PEERNAME: 1384 /* These don't just return a single integer */ 1385 goto unimplemented; 1386 default: 1387 goto int_case; 1388 } 1389 break; 1390 case SOL_TCP: 1391 /* TCP options all take an 'int' value. */ 1392 int_case: 1393 if (get_user_u32(len, optlen)) 1394 return -TARGET_EFAULT; 1395 if (len < 0) 1396 return -TARGET_EINVAL; 1397 lv = sizeof(int); 1398 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 1399 if (ret < 0) 1400 return ret; 1401 if (len > lv) 1402 len = lv; 1403 if (len == 4) { 1404 if (put_user_u32(val, optval_addr)) 1405 return -TARGET_EFAULT; 1406 } else { 1407 if (put_user_u8(val, optval_addr)) 1408 return -TARGET_EFAULT; 1409 } 1410 if (put_user_u32(len, optlen)) 1411 return -TARGET_EFAULT; 1412 break; 1413 case SOL_IP: 1414 switch(optname) { 1415 case IP_TOS: 1416 case IP_TTL: 1417 case IP_HDRINCL: 1418 case IP_ROUTER_ALERT: 1419 case IP_RECVOPTS: 1420 case IP_RETOPTS: 1421 case IP_PKTINFO: 1422 case IP_MTU_DISCOVER: 1423 case IP_RECVERR: 1424 case IP_RECVTOS: 1425 #ifdef IP_FREEBIND 1426 case IP_FREEBIND: 1427 #endif 1428 case IP_MULTICAST_TTL: 1429 case IP_MULTICAST_LOOP: 1430 if (get_user_u32(len, optlen)) 1431 return -TARGET_EFAULT; 1432 if (len < 0) 1433 return -TARGET_EINVAL; 1434 lv = sizeof(int); 1435 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 1436 if (ret < 0) 1437 return ret; 1438 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 1439 len = 1; 1440 if (put_user_u32(len, optlen) 1441 || put_user_u8(val, optval_addr)) 1442 return -TARGET_EFAULT; 1443 } else { 1444 if (len > sizeof(int)) 1445 len = sizeof(int); 1446 if (put_user_u32(len, optlen) 1447 || put_user_u32(val, optval_addr)) 1448 return -TARGET_EFAULT; 1449 } 1450 break; 1451 default: 1452 ret = -TARGET_ENOPROTOOPT; 1453 break; 1454 } 1455 break; 1456 default: 1457 unimplemented: 1458 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 1459 level, optname); 1460 ret = -TARGET_EOPNOTSUPP; 1461 break; 1462 } 1463 return ret; 1464 } 1465 1466 /* FIXME 1467 * lock_iovec()/unlock_iovec() have a return code of 0 for success where 1468 * other lock functions have a return code of 0 for failure. 1469 */ 1470 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr, 1471 int count, int copy) 1472 { 1473 struct target_iovec *target_vec; 1474 abi_ulong base; 1475 int i; 1476 1477 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1478 if (!target_vec) 1479 return -TARGET_EFAULT; 1480 for(i = 0;i < count; i++) { 1481 base = tswapl(target_vec[i].iov_base); 1482 vec[i].iov_len = tswapl(target_vec[i].iov_len); 1483 if (vec[i].iov_len != 0) { 1484 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy); 1485 /* Don't check lock_user return value. We must call writev even 1486 if a element has invalid base address. */ 1487 } else { 1488 /* zero length pointer is ignored */ 1489 vec[i].iov_base = NULL; 1490 } 1491 } 1492 unlock_user (target_vec, target_addr, 0); 1493 return 0; 1494 } 1495 1496 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr, 1497 int count, int copy) 1498 { 1499 struct target_iovec *target_vec; 1500 abi_ulong base; 1501 int i; 1502 1503 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1504 if (!target_vec) 1505 return -TARGET_EFAULT; 1506 for(i = 0;i < count; i++) { 1507 if (target_vec[i].iov_base) { 1508 base = tswapl(target_vec[i].iov_base); 1509 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 1510 } 1511 } 1512 unlock_user (target_vec, target_addr, 0); 1513 1514 return 0; 1515 } 1516 1517 /* do_socket() Must return target values and target errnos. */ 1518 static abi_long do_socket(int domain, int type, int protocol) 1519 { 1520 #if defined(TARGET_MIPS) 1521 switch(type) { 1522 case TARGET_SOCK_DGRAM: 1523 type = SOCK_DGRAM; 1524 break; 1525 case TARGET_SOCK_STREAM: 1526 type = SOCK_STREAM; 1527 break; 1528 case TARGET_SOCK_RAW: 1529 type = SOCK_RAW; 1530 break; 1531 case TARGET_SOCK_RDM: 1532 type = SOCK_RDM; 1533 break; 1534 case TARGET_SOCK_SEQPACKET: 1535 type = SOCK_SEQPACKET; 1536 break; 1537 case TARGET_SOCK_PACKET: 1538 type = SOCK_PACKET; 1539 break; 1540 } 1541 #endif 1542 if (domain == PF_NETLINK) 1543 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 1544 return get_errno(socket(domain, type, protocol)); 1545 } 1546 1547 /* do_bind() Must return target values and target errnos. */ 1548 static abi_long do_bind(int sockfd, abi_ulong target_addr, 1549 socklen_t addrlen) 1550 { 1551 void *addr; 1552 abi_long ret; 1553 1554 if (addrlen < 0) 1555 return -TARGET_EINVAL; 1556 1557 addr = alloca(addrlen+1); 1558 1559 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1560 if (ret) 1561 return ret; 1562 1563 return get_errno(bind(sockfd, addr, addrlen)); 1564 } 1565 1566 /* do_connect() Must return target values and target errnos. */ 1567 static abi_long do_connect(int sockfd, abi_ulong target_addr, 1568 socklen_t addrlen) 1569 { 1570 void *addr; 1571 abi_long ret; 1572 1573 if (addrlen < 0) 1574 return -TARGET_EINVAL; 1575 1576 addr = alloca(addrlen); 1577 1578 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1579 if (ret) 1580 return ret; 1581 1582 return get_errno(connect(sockfd, addr, addrlen)); 1583 } 1584 1585 /* do_sendrecvmsg() Must return target values and target errnos. */ 1586 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1587 int flags, int send) 1588 { 1589 abi_long ret, len; 1590 struct target_msghdr *msgp; 1591 struct msghdr msg; 1592 int count; 1593 struct iovec *vec; 1594 abi_ulong target_vec; 1595 1596 /* FIXME */ 1597 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, 1598 msgp, 1599 target_msg, 1600 send ? 1 : 0)) 1601 return -TARGET_EFAULT; 1602 if (msgp->msg_name) { 1603 msg.msg_namelen = tswap32(msgp->msg_namelen); 1604 msg.msg_name = alloca(msg.msg_namelen); 1605 ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 1606 msg.msg_namelen); 1607 if (ret) { 1608 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1609 return ret; 1610 } 1611 } else { 1612 msg.msg_name = NULL; 1613 msg.msg_namelen = 0; 1614 } 1615 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 1616 msg.msg_control = alloca(msg.msg_controllen); 1617 msg.msg_flags = tswap32(msgp->msg_flags); 1618 1619 count = tswapl(msgp->msg_iovlen); 1620 vec = alloca(count * sizeof(struct iovec)); 1621 target_vec = tswapl(msgp->msg_iov); 1622 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send); 1623 msg.msg_iovlen = count; 1624 msg.msg_iov = vec; 1625 1626 if (send) { 1627 ret = target_to_host_cmsg(&msg, msgp); 1628 if (ret == 0) 1629 ret = get_errno(sendmsg(fd, &msg, flags)); 1630 } else { 1631 ret = get_errno(recvmsg(fd, &msg, flags)); 1632 if (!is_error(ret)) { 1633 len = ret; 1634 ret = host_to_target_cmsg(msgp, &msg); 1635 if (!is_error(ret)) 1636 ret = len; 1637 } 1638 } 1639 unlock_iovec(vec, target_vec, count, !send); 1640 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1641 return ret; 1642 } 1643 1644 /* do_accept() Must return target values and target errnos. */ 1645 static abi_long do_accept(int fd, abi_ulong target_addr, 1646 abi_ulong target_addrlen_addr) 1647 { 1648 socklen_t addrlen; 1649 void *addr; 1650 abi_long ret; 1651 1652 if (target_addr == 0) 1653 return get_errno(accept(fd, NULL, NULL)); 1654 1655 /* linux returns EINVAL if addrlen pointer is invalid */ 1656 if (get_user_u32(addrlen, target_addrlen_addr)) 1657 return -TARGET_EINVAL; 1658 1659 if (addrlen < 0) 1660 return -TARGET_EINVAL; 1661 1662 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1663 return -TARGET_EINVAL; 1664 1665 addr = alloca(addrlen); 1666 1667 ret = get_errno(accept(fd, addr, &addrlen)); 1668 if (!is_error(ret)) { 1669 host_to_target_sockaddr(target_addr, addr, addrlen); 1670 if (put_user_u32(addrlen, target_addrlen_addr)) 1671 ret = -TARGET_EFAULT; 1672 } 1673 return ret; 1674 } 1675 1676 /* do_getpeername() Must return target values and target errnos. */ 1677 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1678 abi_ulong target_addrlen_addr) 1679 { 1680 socklen_t addrlen; 1681 void *addr; 1682 abi_long ret; 1683 1684 if (get_user_u32(addrlen, target_addrlen_addr)) 1685 return -TARGET_EFAULT; 1686 1687 if (addrlen < 0) 1688 return -TARGET_EINVAL; 1689 1690 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1691 return -TARGET_EFAULT; 1692 1693 addr = alloca(addrlen); 1694 1695 ret = get_errno(getpeername(fd, addr, &addrlen)); 1696 if (!is_error(ret)) { 1697 host_to_target_sockaddr(target_addr, addr, addrlen); 1698 if (put_user_u32(addrlen, target_addrlen_addr)) 1699 ret = -TARGET_EFAULT; 1700 } 1701 return ret; 1702 } 1703 1704 /* do_getsockname() Must return target values and target errnos. */ 1705 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1706 abi_ulong target_addrlen_addr) 1707 { 1708 socklen_t addrlen; 1709 void *addr; 1710 abi_long ret; 1711 1712 if (get_user_u32(addrlen, target_addrlen_addr)) 1713 return -TARGET_EFAULT; 1714 1715 if (addrlen < 0) 1716 return -TARGET_EINVAL; 1717 1718 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1719 return -TARGET_EFAULT; 1720 1721 addr = alloca(addrlen); 1722 1723 ret = get_errno(getsockname(fd, addr, &addrlen)); 1724 if (!is_error(ret)) { 1725 host_to_target_sockaddr(target_addr, addr, addrlen); 1726 if (put_user_u32(addrlen, target_addrlen_addr)) 1727 ret = -TARGET_EFAULT; 1728 } 1729 return ret; 1730 } 1731 1732 /* do_socketpair() Must return target values and target errnos. */ 1733 static abi_long do_socketpair(int domain, int type, int protocol, 1734 abi_ulong target_tab_addr) 1735 { 1736 int tab[2]; 1737 abi_long ret; 1738 1739 ret = get_errno(socketpair(domain, type, protocol, tab)); 1740 if (!is_error(ret)) { 1741 if (put_user_s32(tab[0], target_tab_addr) 1742 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) 1743 ret = -TARGET_EFAULT; 1744 } 1745 return ret; 1746 } 1747 1748 /* do_sendto() Must return target values and target errnos. */ 1749 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1750 abi_ulong target_addr, socklen_t addrlen) 1751 { 1752 void *addr; 1753 void *host_msg; 1754 abi_long ret; 1755 1756 if (addrlen < 0) 1757 return -TARGET_EINVAL; 1758 1759 host_msg = lock_user(VERIFY_READ, msg, len, 1); 1760 if (!host_msg) 1761 return -TARGET_EFAULT; 1762 if (target_addr) { 1763 addr = alloca(addrlen); 1764 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1765 if (ret) { 1766 unlock_user(host_msg, msg, 0); 1767 return ret; 1768 } 1769 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1770 } else { 1771 ret = get_errno(send(fd, host_msg, len, flags)); 1772 } 1773 unlock_user(host_msg, msg, 0); 1774 return ret; 1775 } 1776 1777 /* do_recvfrom() Must return target values and target errnos. */ 1778 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 1779 abi_ulong target_addr, 1780 abi_ulong target_addrlen) 1781 { 1782 socklen_t addrlen; 1783 void *addr; 1784 void *host_msg; 1785 abi_long ret; 1786 1787 host_msg = lock_user(VERIFY_WRITE, msg, len, 0); 1788 if (!host_msg) 1789 return -TARGET_EFAULT; 1790 if (target_addr) { 1791 if (get_user_u32(addrlen, target_addrlen)) { 1792 ret = -TARGET_EFAULT; 1793 goto fail; 1794 } 1795 if (addrlen < 0) { 1796 ret = -TARGET_EINVAL; 1797 goto fail; 1798 } 1799 addr = alloca(addrlen); 1800 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1801 } else { 1802 addr = NULL; /* To keep compiler quiet. */ 1803 ret = get_errno(recv(fd, host_msg, len, flags)); 1804 } 1805 if (!is_error(ret)) { 1806 if (target_addr) { 1807 host_to_target_sockaddr(target_addr, addr, addrlen); 1808 if (put_user_u32(addrlen, target_addrlen)) { 1809 ret = -TARGET_EFAULT; 1810 goto fail; 1811 } 1812 } 1813 unlock_user(host_msg, msg, len); 1814 } else { 1815 fail: 1816 unlock_user(host_msg, msg, 0); 1817 } 1818 return ret; 1819 } 1820 1821 #ifdef TARGET_NR_socketcall 1822 /* do_socketcall() Must return target values and target errnos. */ 1823 static abi_long do_socketcall(int num, abi_ulong vptr) 1824 { 1825 abi_long ret; 1826 const int n = sizeof(abi_ulong); 1827 1828 switch(num) { 1829 case SOCKOP_socket: 1830 { 1831 abi_ulong domain, type, protocol; 1832 1833 if (get_user_ual(domain, vptr) 1834 || get_user_ual(type, vptr + n) 1835 || get_user_ual(protocol, vptr + 2 * n)) 1836 return -TARGET_EFAULT; 1837 1838 ret = do_socket(domain, type, protocol); 1839 } 1840 break; 1841 case SOCKOP_bind: 1842 { 1843 abi_ulong sockfd; 1844 abi_ulong target_addr; 1845 socklen_t addrlen; 1846 1847 if (get_user_ual(sockfd, vptr) 1848 || get_user_ual(target_addr, vptr + n) 1849 || get_user_ual(addrlen, vptr + 2 * n)) 1850 return -TARGET_EFAULT; 1851 1852 ret = do_bind(sockfd, target_addr, addrlen); 1853 } 1854 break; 1855 case SOCKOP_connect: 1856 { 1857 abi_ulong sockfd; 1858 abi_ulong target_addr; 1859 socklen_t addrlen; 1860 1861 if (get_user_ual(sockfd, vptr) 1862 || get_user_ual(target_addr, vptr + n) 1863 || get_user_ual(addrlen, vptr + 2 * n)) 1864 return -TARGET_EFAULT; 1865 1866 ret = do_connect(sockfd, target_addr, addrlen); 1867 } 1868 break; 1869 case SOCKOP_listen: 1870 { 1871 abi_ulong sockfd, backlog; 1872 1873 if (get_user_ual(sockfd, vptr) 1874 || get_user_ual(backlog, vptr + n)) 1875 return -TARGET_EFAULT; 1876 1877 ret = get_errno(listen(sockfd, backlog)); 1878 } 1879 break; 1880 case SOCKOP_accept: 1881 { 1882 abi_ulong sockfd; 1883 abi_ulong target_addr, target_addrlen; 1884 1885 if (get_user_ual(sockfd, vptr) 1886 || get_user_ual(target_addr, vptr + n) 1887 || get_user_ual(target_addrlen, vptr + 2 * n)) 1888 return -TARGET_EFAULT; 1889 1890 ret = do_accept(sockfd, target_addr, target_addrlen); 1891 } 1892 break; 1893 case SOCKOP_getsockname: 1894 { 1895 abi_ulong sockfd; 1896 abi_ulong target_addr, target_addrlen; 1897 1898 if (get_user_ual(sockfd, vptr) 1899 || get_user_ual(target_addr, vptr + n) 1900 || get_user_ual(target_addrlen, vptr + 2 * n)) 1901 return -TARGET_EFAULT; 1902 1903 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1904 } 1905 break; 1906 case SOCKOP_getpeername: 1907 { 1908 abi_ulong sockfd; 1909 abi_ulong target_addr, target_addrlen; 1910 1911 if (get_user_ual(sockfd, vptr) 1912 || get_user_ual(target_addr, vptr + n) 1913 || get_user_ual(target_addrlen, vptr + 2 * n)) 1914 return -TARGET_EFAULT; 1915 1916 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1917 } 1918 break; 1919 case SOCKOP_socketpair: 1920 { 1921 abi_ulong domain, type, protocol; 1922 abi_ulong tab; 1923 1924 if (get_user_ual(domain, vptr) 1925 || get_user_ual(type, vptr + n) 1926 || get_user_ual(protocol, vptr + 2 * n) 1927 || get_user_ual(tab, vptr + 3 * n)) 1928 return -TARGET_EFAULT; 1929 1930 ret = do_socketpair(domain, type, protocol, tab); 1931 } 1932 break; 1933 case SOCKOP_send: 1934 { 1935 abi_ulong sockfd; 1936 abi_ulong msg; 1937 size_t len; 1938 abi_ulong flags; 1939 1940 if (get_user_ual(sockfd, vptr) 1941 || get_user_ual(msg, vptr + n) 1942 || get_user_ual(len, vptr + 2 * n) 1943 || get_user_ual(flags, vptr + 3 * n)) 1944 return -TARGET_EFAULT; 1945 1946 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1947 } 1948 break; 1949 case SOCKOP_recv: 1950 { 1951 abi_ulong sockfd; 1952 abi_ulong msg; 1953 size_t len; 1954 abi_ulong flags; 1955 1956 if (get_user_ual(sockfd, vptr) 1957 || get_user_ual(msg, vptr + n) 1958 || get_user_ual(len, vptr + 2 * n) 1959 || get_user_ual(flags, vptr + 3 * n)) 1960 return -TARGET_EFAULT; 1961 1962 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1963 } 1964 break; 1965 case SOCKOP_sendto: 1966 { 1967 abi_ulong sockfd; 1968 abi_ulong msg; 1969 size_t len; 1970 abi_ulong flags; 1971 abi_ulong addr; 1972 socklen_t addrlen; 1973 1974 if (get_user_ual(sockfd, vptr) 1975 || get_user_ual(msg, vptr + n) 1976 || get_user_ual(len, vptr + 2 * n) 1977 || get_user_ual(flags, vptr + 3 * n) 1978 || get_user_ual(addr, vptr + 4 * n) 1979 || get_user_ual(addrlen, vptr + 5 * n)) 1980 return -TARGET_EFAULT; 1981 1982 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1983 } 1984 break; 1985 case SOCKOP_recvfrom: 1986 { 1987 abi_ulong sockfd; 1988 abi_ulong msg; 1989 size_t len; 1990 abi_ulong flags; 1991 abi_ulong addr; 1992 socklen_t addrlen; 1993 1994 if (get_user_ual(sockfd, vptr) 1995 || get_user_ual(msg, vptr + n) 1996 || get_user_ual(len, vptr + 2 * n) 1997 || get_user_ual(flags, vptr + 3 * n) 1998 || get_user_ual(addr, vptr + 4 * n) 1999 || get_user_ual(addrlen, vptr + 5 * n)) 2000 return -TARGET_EFAULT; 2001 2002 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 2003 } 2004 break; 2005 case SOCKOP_shutdown: 2006 { 2007 abi_ulong sockfd, how; 2008 2009 if (get_user_ual(sockfd, vptr) 2010 || get_user_ual(how, vptr + n)) 2011 return -TARGET_EFAULT; 2012 2013 ret = get_errno(shutdown(sockfd, how)); 2014 } 2015 break; 2016 case SOCKOP_sendmsg: 2017 case SOCKOP_recvmsg: 2018 { 2019 abi_ulong fd; 2020 abi_ulong target_msg; 2021 abi_ulong flags; 2022 2023 if (get_user_ual(fd, vptr) 2024 || get_user_ual(target_msg, vptr + n) 2025 || get_user_ual(flags, vptr + 2 * n)) 2026 return -TARGET_EFAULT; 2027 2028 ret = do_sendrecvmsg(fd, target_msg, flags, 2029 (num == SOCKOP_sendmsg)); 2030 } 2031 break; 2032 case SOCKOP_setsockopt: 2033 { 2034 abi_ulong sockfd; 2035 abi_ulong level; 2036 abi_ulong optname; 2037 abi_ulong optval; 2038 socklen_t optlen; 2039 2040 if (get_user_ual(sockfd, vptr) 2041 || get_user_ual(level, vptr + n) 2042 || get_user_ual(optname, vptr + 2 * n) 2043 || get_user_ual(optval, vptr + 3 * n) 2044 || get_user_ual(optlen, vptr + 4 * n)) 2045 return -TARGET_EFAULT; 2046 2047 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 2048 } 2049 break; 2050 case SOCKOP_getsockopt: 2051 { 2052 abi_ulong sockfd; 2053 abi_ulong level; 2054 abi_ulong optname; 2055 abi_ulong optval; 2056 socklen_t optlen; 2057 2058 if (get_user_ual(sockfd, vptr) 2059 || get_user_ual(level, vptr + n) 2060 || get_user_ual(optname, vptr + 2 * n) 2061 || get_user_ual(optval, vptr + 3 * n) 2062 || get_user_ual(optlen, vptr + 4 * n)) 2063 return -TARGET_EFAULT; 2064 2065 ret = do_getsockopt(sockfd, level, optname, optval, optlen); 2066 } 2067 break; 2068 default: 2069 gemu_log("Unsupported socketcall: %d\n", num); 2070 ret = -TARGET_ENOSYS; 2071 break; 2072 } 2073 return ret; 2074 } 2075 #endif 2076 2077 #define N_SHM_REGIONS 32 2078 2079 static struct shm_region { 2080 abi_ulong start; 2081 abi_ulong size; 2082 } shm_regions[N_SHM_REGIONS]; 2083 2084 struct target_ipc_perm 2085 { 2086 abi_long __key; 2087 abi_ulong uid; 2088 abi_ulong gid; 2089 abi_ulong cuid; 2090 abi_ulong cgid; 2091 unsigned short int mode; 2092 unsigned short int __pad1; 2093 unsigned short int __seq; 2094 unsigned short int __pad2; 2095 abi_ulong __unused1; 2096 abi_ulong __unused2; 2097 }; 2098 2099 struct target_semid_ds 2100 { 2101 struct target_ipc_perm sem_perm; 2102 abi_ulong sem_otime; 2103 abi_ulong __unused1; 2104 abi_ulong sem_ctime; 2105 abi_ulong __unused2; 2106 abi_ulong sem_nsems; 2107 abi_ulong __unused3; 2108 abi_ulong __unused4; 2109 }; 2110 2111 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, 2112 abi_ulong target_addr) 2113 { 2114 struct target_ipc_perm *target_ip; 2115 struct target_semid_ds *target_sd; 2116 2117 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2118 return -TARGET_EFAULT; 2119 target_ip = &(target_sd->sem_perm); 2120 host_ip->__key = tswapl(target_ip->__key); 2121 host_ip->uid = tswapl(target_ip->uid); 2122 host_ip->gid = tswapl(target_ip->gid); 2123 host_ip->cuid = tswapl(target_ip->cuid); 2124 host_ip->cgid = tswapl(target_ip->cgid); 2125 host_ip->mode = tswapl(target_ip->mode); 2126 unlock_user_struct(target_sd, target_addr, 0); 2127 return 0; 2128 } 2129 2130 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, 2131 struct ipc_perm *host_ip) 2132 { 2133 struct target_ipc_perm *target_ip; 2134 struct target_semid_ds *target_sd; 2135 2136 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2137 return -TARGET_EFAULT; 2138 target_ip = &(target_sd->sem_perm); 2139 target_ip->__key = tswapl(host_ip->__key); 2140 target_ip->uid = tswapl(host_ip->uid); 2141 target_ip->gid = tswapl(host_ip->gid); 2142 target_ip->cuid = tswapl(host_ip->cuid); 2143 target_ip->cgid = tswapl(host_ip->cgid); 2144 target_ip->mode = tswapl(host_ip->mode); 2145 unlock_user_struct(target_sd, target_addr, 1); 2146 return 0; 2147 } 2148 2149 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, 2150 abi_ulong target_addr) 2151 { 2152 struct target_semid_ds *target_sd; 2153 2154 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2155 return -TARGET_EFAULT; 2156 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr)) 2157 return -TARGET_EFAULT; 2158 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 2159 host_sd->sem_otime = tswapl(target_sd->sem_otime); 2160 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 2161 unlock_user_struct(target_sd, target_addr, 0); 2162 return 0; 2163 } 2164 2165 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, 2166 struct semid_ds *host_sd) 2167 { 2168 struct target_semid_ds *target_sd; 2169 2170 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2171 return -TARGET_EFAULT; 2172 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm))) 2173 return -TARGET_EFAULT;; 2174 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 2175 target_sd->sem_otime = tswapl(host_sd->sem_otime); 2176 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 2177 unlock_user_struct(target_sd, target_addr, 1); 2178 return 0; 2179 } 2180 2181 struct target_seminfo { 2182 int semmap; 2183 int semmni; 2184 int semmns; 2185 int semmnu; 2186 int semmsl; 2187 int semopm; 2188 int semume; 2189 int semusz; 2190 int semvmx; 2191 int semaem; 2192 }; 2193 2194 static inline abi_long host_to_target_seminfo(abi_ulong target_addr, 2195 struct seminfo *host_seminfo) 2196 { 2197 struct target_seminfo *target_seminfo; 2198 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0)) 2199 return -TARGET_EFAULT; 2200 __put_user(host_seminfo->semmap, &target_seminfo->semmap); 2201 __put_user(host_seminfo->semmni, &target_seminfo->semmni); 2202 __put_user(host_seminfo->semmns, &target_seminfo->semmns); 2203 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu); 2204 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl); 2205 __put_user(host_seminfo->semopm, &target_seminfo->semopm); 2206 __put_user(host_seminfo->semume, &target_seminfo->semume); 2207 __put_user(host_seminfo->semusz, &target_seminfo->semusz); 2208 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx); 2209 __put_user(host_seminfo->semaem, &target_seminfo->semaem); 2210 unlock_user_struct(target_seminfo, target_addr, 1); 2211 return 0; 2212 } 2213 2214 union semun { 2215 int val; 2216 struct semid_ds *buf; 2217 unsigned short *array; 2218 struct seminfo *__buf; 2219 }; 2220 2221 union target_semun { 2222 int val; 2223 abi_ulong buf; 2224 abi_ulong array; 2225 abi_ulong __buf; 2226 }; 2227 2228 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array, 2229 abi_ulong target_addr) 2230 { 2231 int nsems; 2232 unsigned short *array; 2233 union semun semun; 2234 struct semid_ds semid_ds; 2235 int i, ret; 2236 2237 semun.buf = &semid_ds; 2238 2239 ret = semctl(semid, 0, IPC_STAT, semun); 2240 if (ret == -1) 2241 return get_errno(ret); 2242 2243 nsems = semid_ds.sem_nsems; 2244 2245 *host_array = malloc(nsems*sizeof(unsigned short)); 2246 array = lock_user(VERIFY_READ, target_addr, 2247 nsems*sizeof(unsigned short), 1); 2248 if (!array) 2249 return -TARGET_EFAULT; 2250 2251 for(i=0; i<nsems; i++) { 2252 __get_user((*host_array)[i], &array[i]); 2253 } 2254 unlock_user(array, target_addr, 0); 2255 2256 return 0; 2257 } 2258 2259 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr, 2260 unsigned short **host_array) 2261 { 2262 int nsems; 2263 unsigned short *array; 2264 union semun semun; 2265 struct semid_ds semid_ds; 2266 int i, ret; 2267 2268 semun.buf = &semid_ds; 2269 2270 ret = semctl(semid, 0, IPC_STAT, semun); 2271 if (ret == -1) 2272 return get_errno(ret); 2273 2274 nsems = semid_ds.sem_nsems; 2275 2276 array = lock_user(VERIFY_WRITE, target_addr, 2277 nsems*sizeof(unsigned short), 0); 2278 if (!array) 2279 return -TARGET_EFAULT; 2280 2281 for(i=0; i<nsems; i++) { 2282 __put_user((*host_array)[i], &array[i]); 2283 } 2284 free(*host_array); 2285 unlock_user(array, target_addr, 1); 2286 2287 return 0; 2288 } 2289 2290 static inline abi_long do_semctl(int semid, int semnum, int cmd, 2291 union target_semun target_su) 2292 { 2293 union semun arg; 2294 struct semid_ds dsarg; 2295 unsigned short *array = NULL; 2296 struct seminfo seminfo; 2297 abi_long ret = -TARGET_EINVAL; 2298 abi_long err; 2299 cmd &= 0xff; 2300 2301 switch( cmd ) { 2302 case GETVAL: 2303 case SETVAL: 2304 arg.val = tswapl(target_su.val); 2305 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2306 target_su.val = tswapl(arg.val); 2307 break; 2308 case GETALL: 2309 case SETALL: 2310 err = target_to_host_semarray(semid, &array, target_su.array); 2311 if (err) 2312 return err; 2313 arg.array = array; 2314 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2315 err = host_to_target_semarray(semid, target_su.array, &array); 2316 if (err) 2317 return err; 2318 break; 2319 case IPC_STAT: 2320 case IPC_SET: 2321 case SEM_STAT: 2322 err = target_to_host_semid_ds(&dsarg, target_su.buf); 2323 if (err) 2324 return err; 2325 arg.buf = &dsarg; 2326 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2327 err = host_to_target_semid_ds(target_su.buf, &dsarg); 2328 if (err) 2329 return err; 2330 break; 2331 case IPC_INFO: 2332 case SEM_INFO: 2333 arg.__buf = &seminfo; 2334 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2335 err = host_to_target_seminfo(target_su.__buf, &seminfo); 2336 if (err) 2337 return err; 2338 break; 2339 case IPC_RMID: 2340 case GETPID: 2341 case GETNCNT: 2342 case GETZCNT: 2343 ret = get_errno(semctl(semid, semnum, cmd, NULL)); 2344 break; 2345 } 2346 2347 return ret; 2348 } 2349 2350 struct target_sembuf { 2351 unsigned short sem_num; 2352 short sem_op; 2353 short sem_flg; 2354 }; 2355 2356 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf, 2357 abi_ulong target_addr, 2358 unsigned nsops) 2359 { 2360 struct target_sembuf *target_sembuf; 2361 int i; 2362 2363 target_sembuf = lock_user(VERIFY_READ, target_addr, 2364 nsops*sizeof(struct target_sembuf), 1); 2365 if (!target_sembuf) 2366 return -TARGET_EFAULT; 2367 2368 for(i=0; i<nsops; i++) { 2369 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num); 2370 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op); 2371 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg); 2372 } 2373 2374 unlock_user(target_sembuf, target_addr, 0); 2375 2376 return 0; 2377 } 2378 2379 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops) 2380 { 2381 struct sembuf sops[nsops]; 2382 2383 if (target_to_host_sembuf(sops, ptr, nsops)) 2384 return -TARGET_EFAULT; 2385 2386 return semop(semid, sops, nsops); 2387 } 2388 2389 struct target_msqid_ds 2390 { 2391 struct target_ipc_perm msg_perm; 2392 abi_ulong msg_stime; 2393 #if TARGET_ABI_BITS == 32 2394 abi_ulong __unused1; 2395 #endif 2396 abi_ulong msg_rtime; 2397 #if TARGET_ABI_BITS == 32 2398 abi_ulong __unused2; 2399 #endif 2400 abi_ulong msg_ctime; 2401 #if TARGET_ABI_BITS == 32 2402 abi_ulong __unused3; 2403 #endif 2404 abi_ulong __msg_cbytes; 2405 abi_ulong msg_qnum; 2406 abi_ulong msg_qbytes; 2407 abi_ulong msg_lspid; 2408 abi_ulong msg_lrpid; 2409 abi_ulong __unused4; 2410 abi_ulong __unused5; 2411 }; 2412 2413 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, 2414 abi_ulong target_addr) 2415 { 2416 struct target_msqid_ds *target_md; 2417 2418 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) 2419 return -TARGET_EFAULT; 2420 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr)) 2421 return -TARGET_EFAULT; 2422 host_md->msg_stime = tswapl(target_md->msg_stime); 2423 host_md->msg_rtime = tswapl(target_md->msg_rtime); 2424 host_md->msg_ctime = tswapl(target_md->msg_ctime); 2425 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 2426 host_md->msg_qnum = tswapl(target_md->msg_qnum); 2427 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 2428 host_md->msg_lspid = tswapl(target_md->msg_lspid); 2429 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 2430 unlock_user_struct(target_md, target_addr, 0); 2431 return 0; 2432 } 2433 2434 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, 2435 struct msqid_ds *host_md) 2436 { 2437 struct target_msqid_ds *target_md; 2438 2439 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) 2440 return -TARGET_EFAULT; 2441 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm))) 2442 return -TARGET_EFAULT; 2443 target_md->msg_stime = tswapl(host_md->msg_stime); 2444 target_md->msg_rtime = tswapl(host_md->msg_rtime); 2445 target_md->msg_ctime = tswapl(host_md->msg_ctime); 2446 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 2447 target_md->msg_qnum = tswapl(host_md->msg_qnum); 2448 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 2449 target_md->msg_lspid = tswapl(host_md->msg_lspid); 2450 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 2451 unlock_user_struct(target_md, target_addr, 1); 2452 return 0; 2453 } 2454 2455 struct target_msginfo { 2456 int msgpool; 2457 int msgmap; 2458 int msgmax; 2459 int msgmnb; 2460 int msgmni; 2461 int msgssz; 2462 int msgtql; 2463 unsigned short int msgseg; 2464 }; 2465 2466 static inline abi_long host_to_target_msginfo(abi_ulong target_addr, 2467 struct msginfo *host_msginfo) 2468 { 2469 struct target_msginfo *target_msginfo; 2470 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0)) 2471 return -TARGET_EFAULT; 2472 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool); 2473 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap); 2474 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax); 2475 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb); 2476 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni); 2477 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz); 2478 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql); 2479 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg); 2480 unlock_user_struct(target_msginfo, target_addr, 1); 2481 return 0; 2482 } 2483 2484 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr) 2485 { 2486 struct msqid_ds dsarg; 2487 struct msginfo msginfo; 2488 abi_long ret = -TARGET_EINVAL; 2489 2490 cmd &= 0xff; 2491 2492 switch (cmd) { 2493 case IPC_STAT: 2494 case IPC_SET: 2495 case MSG_STAT: 2496 if (target_to_host_msqid_ds(&dsarg,ptr)) 2497 return -TARGET_EFAULT; 2498 ret = get_errno(msgctl(msgid, cmd, &dsarg)); 2499 if (host_to_target_msqid_ds(ptr,&dsarg)) 2500 return -TARGET_EFAULT; 2501 break; 2502 case IPC_RMID: 2503 ret = get_errno(msgctl(msgid, cmd, NULL)); 2504 break; 2505 case IPC_INFO: 2506 case MSG_INFO: 2507 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo)); 2508 if (host_to_target_msginfo(ptr, &msginfo)) 2509 return -TARGET_EFAULT; 2510 break; 2511 } 2512 2513 return ret; 2514 } 2515 2516 struct target_msgbuf { 2517 abi_long mtype; 2518 char mtext[1]; 2519 }; 2520 2521 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 2522 unsigned int msgsz, int msgflg) 2523 { 2524 struct target_msgbuf *target_mb; 2525 struct msgbuf *host_mb; 2526 abi_long ret = 0; 2527 2528 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) 2529 return -TARGET_EFAULT; 2530 host_mb = malloc(msgsz+sizeof(long)); 2531 host_mb->mtype = (abi_long) tswapl(target_mb->mtype); 2532 memcpy(host_mb->mtext, target_mb->mtext, msgsz); 2533 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 2534 free(host_mb); 2535 unlock_user_struct(target_mb, msgp, 0); 2536 2537 return ret; 2538 } 2539 2540 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 2541 unsigned int msgsz, abi_long msgtyp, 2542 int msgflg) 2543 { 2544 struct target_msgbuf *target_mb; 2545 char *target_mtext; 2546 struct msgbuf *host_mb; 2547 abi_long ret = 0; 2548 2549 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) 2550 return -TARGET_EFAULT; 2551 2552 host_mb = malloc(msgsz+sizeof(long)); 2553 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg)); 2554 2555 if (ret > 0) { 2556 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); 2557 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); 2558 if (!target_mtext) { 2559 ret = -TARGET_EFAULT; 2560 goto end; 2561 } 2562 memcpy(target_mb->mtext, host_mb->mtext, ret); 2563 unlock_user(target_mtext, target_mtext_addr, ret); 2564 } 2565 2566 target_mb->mtype = tswapl(host_mb->mtype); 2567 free(host_mb); 2568 2569 end: 2570 if (target_mb) 2571 unlock_user_struct(target_mb, msgp, 1); 2572 return ret; 2573 } 2574 2575 struct target_shmid_ds 2576 { 2577 struct target_ipc_perm shm_perm; 2578 abi_ulong shm_segsz; 2579 abi_ulong shm_atime; 2580 #if TARGET_ABI_BITS == 32 2581 abi_ulong __unused1; 2582 #endif 2583 abi_ulong shm_dtime; 2584 #if TARGET_ABI_BITS == 32 2585 abi_ulong __unused2; 2586 #endif 2587 abi_ulong shm_ctime; 2588 #if TARGET_ABI_BITS == 32 2589 abi_ulong __unused3; 2590 #endif 2591 int shm_cpid; 2592 int shm_lpid; 2593 abi_ulong shm_nattch; 2594 unsigned long int __unused4; 2595 unsigned long int __unused5; 2596 }; 2597 2598 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd, 2599 abi_ulong target_addr) 2600 { 2601 struct target_shmid_ds *target_sd; 2602 2603 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2604 return -TARGET_EFAULT; 2605 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr)) 2606 return -TARGET_EFAULT; 2607 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz); 2608 __get_user(host_sd->shm_atime, &target_sd->shm_atime); 2609 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime); 2610 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime); 2611 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid); 2612 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid); 2613 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch); 2614 unlock_user_struct(target_sd, target_addr, 0); 2615 return 0; 2616 } 2617 2618 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr, 2619 struct shmid_ds *host_sd) 2620 { 2621 struct target_shmid_ds *target_sd; 2622 2623 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2624 return -TARGET_EFAULT; 2625 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm))) 2626 return -TARGET_EFAULT; 2627 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz); 2628 __put_user(host_sd->shm_atime, &target_sd->shm_atime); 2629 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime); 2630 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime); 2631 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid); 2632 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid); 2633 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch); 2634 unlock_user_struct(target_sd, target_addr, 1); 2635 return 0; 2636 } 2637 2638 struct target_shminfo { 2639 abi_ulong shmmax; 2640 abi_ulong shmmin; 2641 abi_ulong shmmni; 2642 abi_ulong shmseg; 2643 abi_ulong shmall; 2644 }; 2645 2646 static inline abi_long host_to_target_shminfo(abi_ulong target_addr, 2647 struct shminfo *host_shminfo) 2648 { 2649 struct target_shminfo *target_shminfo; 2650 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0)) 2651 return -TARGET_EFAULT; 2652 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax); 2653 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin); 2654 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni); 2655 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg); 2656 __put_user(host_shminfo->shmall, &target_shminfo->shmall); 2657 unlock_user_struct(target_shminfo, target_addr, 1); 2658 return 0; 2659 } 2660 2661 struct target_shm_info { 2662 int used_ids; 2663 abi_ulong shm_tot; 2664 abi_ulong shm_rss; 2665 abi_ulong shm_swp; 2666 abi_ulong swap_attempts; 2667 abi_ulong swap_successes; 2668 }; 2669 2670 static inline abi_long host_to_target_shm_info(abi_ulong target_addr, 2671 struct shm_info *host_shm_info) 2672 { 2673 struct target_shm_info *target_shm_info; 2674 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0)) 2675 return -TARGET_EFAULT; 2676 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids); 2677 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot); 2678 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss); 2679 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp); 2680 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts); 2681 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes); 2682 unlock_user_struct(target_shm_info, target_addr, 1); 2683 return 0; 2684 } 2685 2686 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf) 2687 { 2688 struct shmid_ds dsarg; 2689 struct shminfo shminfo; 2690 struct shm_info shm_info; 2691 abi_long ret = -TARGET_EINVAL; 2692 2693 cmd &= 0xff; 2694 2695 switch(cmd) { 2696 case IPC_STAT: 2697 case IPC_SET: 2698 case SHM_STAT: 2699 if (target_to_host_shmid_ds(&dsarg, buf)) 2700 return -TARGET_EFAULT; 2701 ret = get_errno(shmctl(shmid, cmd, &dsarg)); 2702 if (host_to_target_shmid_ds(buf, &dsarg)) 2703 return -TARGET_EFAULT; 2704 break; 2705 case IPC_INFO: 2706 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo)); 2707 if (host_to_target_shminfo(buf, &shminfo)) 2708 return -TARGET_EFAULT; 2709 break; 2710 case SHM_INFO: 2711 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info)); 2712 if (host_to_target_shm_info(buf, &shm_info)) 2713 return -TARGET_EFAULT; 2714 break; 2715 case IPC_RMID: 2716 case SHM_LOCK: 2717 case SHM_UNLOCK: 2718 ret = get_errno(shmctl(shmid, cmd, NULL)); 2719 break; 2720 } 2721 2722 return ret; 2723 } 2724 2725 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg) 2726 { 2727 abi_long raddr; 2728 void *host_raddr; 2729 struct shmid_ds shm_info; 2730 int i,ret; 2731 2732 /* find out the length of the shared memory segment */ 2733 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info)); 2734 if (is_error(ret)) { 2735 /* can't get length, bail out */ 2736 return ret; 2737 } 2738 2739 mmap_lock(); 2740 2741 if (shmaddr) 2742 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); 2743 else { 2744 abi_ulong mmap_start; 2745 2746 mmap_start = mmap_find_vma(0, shm_info.shm_segsz); 2747 2748 if (mmap_start == -1) { 2749 errno = ENOMEM; 2750 host_raddr = (void *)-1; 2751 } else 2752 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP); 2753 } 2754 2755 if (host_raddr == (void *)-1) { 2756 mmap_unlock(); 2757 return get_errno((long)host_raddr); 2758 } 2759 raddr=h2g((unsigned long)host_raddr); 2760 2761 page_set_flags(raddr, raddr + shm_info.shm_segsz, 2762 PAGE_VALID | PAGE_READ | 2763 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE)); 2764 2765 for (i = 0; i < N_SHM_REGIONS; i++) { 2766 if (shm_regions[i].start == 0) { 2767 shm_regions[i].start = raddr; 2768 shm_regions[i].size = shm_info.shm_segsz; 2769 break; 2770 } 2771 } 2772 2773 mmap_unlock(); 2774 return raddr; 2775 2776 } 2777 2778 static inline abi_long do_shmdt(abi_ulong shmaddr) 2779 { 2780 int i; 2781 2782 for (i = 0; i < N_SHM_REGIONS; ++i) { 2783 if (shm_regions[i].start == shmaddr) { 2784 shm_regions[i].start = 0; 2785 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0); 2786 break; 2787 } 2788 } 2789 2790 return get_errno(shmdt(g2h(shmaddr))); 2791 } 2792 2793 #ifdef TARGET_NR_ipc 2794 /* ??? This only works with linear mappings. */ 2795 /* do_ipc() must return target values and target errnos. */ 2796 static abi_long do_ipc(unsigned int call, int first, 2797 int second, int third, 2798 abi_long ptr, abi_long fifth) 2799 { 2800 int version; 2801 abi_long ret = 0; 2802 2803 version = call >> 16; 2804 call &= 0xffff; 2805 2806 switch (call) { 2807 case IPCOP_semop: 2808 ret = do_semop(first, ptr, second); 2809 break; 2810 2811 case IPCOP_semget: 2812 ret = get_errno(semget(first, second, third)); 2813 break; 2814 2815 case IPCOP_semctl: 2816 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr); 2817 break; 2818 2819 case IPCOP_msgget: 2820 ret = get_errno(msgget(first, second)); 2821 break; 2822 2823 case IPCOP_msgsnd: 2824 ret = do_msgsnd(first, ptr, second, third); 2825 break; 2826 2827 case IPCOP_msgctl: 2828 ret = do_msgctl(first, second, ptr); 2829 break; 2830 2831 case IPCOP_msgrcv: 2832 switch (version) { 2833 case 0: 2834 { 2835 struct target_ipc_kludge { 2836 abi_long msgp; 2837 abi_long msgtyp; 2838 } *tmp; 2839 2840 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) { 2841 ret = -TARGET_EFAULT; 2842 break; 2843 } 2844 2845 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third); 2846 2847 unlock_user_struct(tmp, ptr, 0); 2848 break; 2849 } 2850 default: 2851 ret = do_msgrcv(first, ptr, second, fifth, third); 2852 } 2853 break; 2854 2855 case IPCOP_shmat: 2856 switch (version) { 2857 default: 2858 { 2859 abi_ulong raddr; 2860 raddr = do_shmat(first, ptr, second); 2861 if (is_error(raddr)) 2862 return get_errno(raddr); 2863 if (put_user_ual(raddr, third)) 2864 return -TARGET_EFAULT; 2865 break; 2866 } 2867 case 1: 2868 ret = -TARGET_EINVAL; 2869 break; 2870 } 2871 break; 2872 case IPCOP_shmdt: 2873 ret = do_shmdt(ptr); 2874 break; 2875 2876 case IPCOP_shmget: 2877 /* IPC_* flag values are the same on all linux platforms */ 2878 ret = get_errno(shmget(first, second, third)); 2879 break; 2880 2881 /* IPC_* and SHM_* command values are the same on all linux platforms */ 2882 case IPCOP_shmctl: 2883 ret = do_shmctl(first, second, third); 2884 break; 2885 default: 2886 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 2887 ret = -TARGET_ENOSYS; 2888 break; 2889 } 2890 return ret; 2891 } 2892 #endif 2893 2894 /* kernel structure types definitions */ 2895 #define IFNAMSIZ 16 2896 2897 #define STRUCT(name, ...) STRUCT_ ## name, 2898 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 2899 enum { 2900 #include "syscall_types.h" 2901 }; 2902 #undef STRUCT 2903 #undef STRUCT_SPECIAL 2904 2905 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL }; 2906 #define STRUCT_SPECIAL(name) 2907 #include "syscall_types.h" 2908 #undef STRUCT 2909 #undef STRUCT_SPECIAL 2910 2911 typedef struct IOCTLEntry { 2912 unsigned int target_cmd; 2913 unsigned int host_cmd; 2914 const char *name; 2915 int access; 2916 const argtype arg_type[5]; 2917 } IOCTLEntry; 2918 2919 #define IOC_R 0x0001 2920 #define IOC_W 0x0002 2921 #define IOC_RW (IOC_R | IOC_W) 2922 2923 #define MAX_STRUCT_SIZE 4096 2924 2925 static IOCTLEntry ioctl_entries[] = { 2926 #define IOCTL(cmd, access, ...) \ 2927 { TARGET_ ## cmd, cmd, #cmd, access, { __VA_ARGS__ } }, 2928 #include "ioctls.h" 2929 { 0, 0, }, 2930 }; 2931 2932 /* ??? Implement proper locking for ioctls. */ 2933 /* do_ioctl() Must return target values and target errnos. */ 2934 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 2935 { 2936 const IOCTLEntry *ie; 2937 const argtype *arg_type; 2938 abi_long ret; 2939 uint8_t buf_temp[MAX_STRUCT_SIZE]; 2940 int target_size; 2941 void *argptr; 2942 2943 ie = ioctl_entries; 2944 for(;;) { 2945 if (ie->target_cmd == 0) { 2946 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 2947 return -TARGET_ENOSYS; 2948 } 2949 if (ie->target_cmd == cmd) 2950 break; 2951 ie++; 2952 } 2953 arg_type = ie->arg_type; 2954 #if defined(DEBUG) 2955 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 2956 #endif 2957 switch(arg_type[0]) { 2958 case TYPE_NULL: 2959 /* no argument */ 2960 ret = get_errno(ioctl(fd, ie->host_cmd)); 2961 break; 2962 case TYPE_PTRVOID: 2963 case TYPE_INT: 2964 /* int argment */ 2965 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 2966 break; 2967 case TYPE_PTR: 2968 arg_type++; 2969 target_size = thunk_type_size(arg_type, 0); 2970 switch(ie->access) { 2971 case IOC_R: 2972 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2973 if (!is_error(ret)) { 2974 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2975 if (!argptr) 2976 return -TARGET_EFAULT; 2977 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2978 unlock_user(argptr, arg, target_size); 2979 } 2980 break; 2981 case IOC_W: 2982 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2983 if (!argptr) 2984 return -TARGET_EFAULT; 2985 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2986 unlock_user(argptr, arg, 0); 2987 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2988 break; 2989 default: 2990 case IOC_RW: 2991 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2992 if (!argptr) 2993 return -TARGET_EFAULT; 2994 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2995 unlock_user(argptr, arg, 0); 2996 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2997 if (!is_error(ret)) { 2998 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2999 if (!argptr) 3000 return -TARGET_EFAULT; 3001 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 3002 unlock_user(argptr, arg, target_size); 3003 } 3004 break; 3005 } 3006 break; 3007 default: 3008 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 3009 (long)cmd, arg_type[0]); 3010 ret = -TARGET_ENOSYS; 3011 break; 3012 } 3013 return ret; 3014 } 3015 3016 static const bitmask_transtbl iflag_tbl[] = { 3017 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 3018 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 3019 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 3020 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 3021 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 3022 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 3023 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 3024 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 3025 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 3026 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 3027 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 3028 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 3029 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 3030 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 3031 { 0, 0, 0, 0 } 3032 }; 3033 3034 static const bitmask_transtbl oflag_tbl[] = { 3035 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 3036 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 3037 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 3038 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 3039 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 3040 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 3041 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 3042 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 3043 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 3044 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 3045 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 3046 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 3047 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 3048 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 3049 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 3050 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 3051 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 3052 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 3053 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 3054 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 3055 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 3056 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 3057 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 3058 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 3059 { 0, 0, 0, 0 } 3060 }; 3061 3062 static const bitmask_transtbl cflag_tbl[] = { 3063 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 3064 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 3065 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 3066 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 3067 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 3068 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 3069 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 3070 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 3071 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 3072 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 3073 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 3074 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 3075 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 3076 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 3077 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 3078 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 3079 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 3080 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 3081 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 3082 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 3083 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 3084 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 3085 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 3086 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 3087 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 3088 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 3089 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 3090 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 3091 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 3092 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 3093 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 3094 { 0, 0, 0, 0 } 3095 }; 3096 3097 static const bitmask_transtbl lflag_tbl[] = { 3098 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 3099 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 3100 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 3101 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 3102 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 3103 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 3104 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 3105 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 3106 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 3107 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 3108 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 3109 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 3110 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 3111 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 3112 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 3113 { 0, 0, 0, 0 } 3114 }; 3115 3116 static void target_to_host_termios (void *dst, const void *src) 3117 { 3118 struct host_termios *host = dst; 3119 const struct target_termios *target = src; 3120 3121 host->c_iflag = 3122 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 3123 host->c_oflag = 3124 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 3125 host->c_cflag = 3126 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 3127 host->c_lflag = 3128 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 3129 host->c_line = target->c_line; 3130 3131 memset(host->c_cc, 0, sizeof(host->c_cc)); 3132 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 3133 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 3134 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 3135 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 3136 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 3137 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 3138 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 3139 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 3140 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 3141 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 3142 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 3143 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 3144 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 3145 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 3146 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 3147 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 3148 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 3149 } 3150 3151 static void host_to_target_termios (void *dst, const void *src) 3152 { 3153 struct target_termios *target = dst; 3154 const struct host_termios *host = src; 3155 3156 target->c_iflag = 3157 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 3158 target->c_oflag = 3159 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 3160 target->c_cflag = 3161 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 3162 target->c_lflag = 3163 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 3164 target->c_line = host->c_line; 3165 3166 memset(target->c_cc, 0, sizeof(target->c_cc)); 3167 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 3168 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 3169 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 3170 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 3171 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 3172 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 3173 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 3174 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 3175 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 3176 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 3177 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 3178 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 3179 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 3180 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 3181 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 3182 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 3183 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 3184 } 3185 3186 static const StructEntry struct_termios_def = { 3187 .convert = { host_to_target_termios, target_to_host_termios }, 3188 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 3189 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 3190 }; 3191 3192 static bitmask_transtbl mmap_flags_tbl[] = { 3193 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 3194 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 3195 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 3196 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 3197 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 3198 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 3199 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 3200 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 3201 { 0, 0, 0, 0 } 3202 }; 3203 3204 #if defined(TARGET_I386) 3205 3206 /* NOTE: there is really one LDT for all the threads */ 3207 static uint8_t *ldt_table; 3208 3209 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) 3210 { 3211 int size; 3212 void *p; 3213 3214 if (!ldt_table) 3215 return 0; 3216 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 3217 if (size > bytecount) 3218 size = bytecount; 3219 p = lock_user(VERIFY_WRITE, ptr, size, 0); 3220 if (!p) 3221 return -TARGET_EFAULT; 3222 /* ??? Should this by byteswapped? */ 3223 memcpy(p, ldt_table, size); 3224 unlock_user(p, ptr, size); 3225 return size; 3226 } 3227 3228 /* XXX: add locking support */ 3229 static abi_long write_ldt(CPUX86State *env, 3230 abi_ulong ptr, unsigned long bytecount, int oldmode) 3231 { 3232 struct target_modify_ldt_ldt_s ldt_info; 3233 struct target_modify_ldt_ldt_s *target_ldt_info; 3234 int seg_32bit, contents, read_exec_only, limit_in_pages; 3235 int seg_not_present, useable, lm; 3236 uint32_t *lp, entry_1, entry_2; 3237 3238 if (bytecount != sizeof(ldt_info)) 3239 return -TARGET_EINVAL; 3240 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) 3241 return -TARGET_EFAULT; 3242 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 3243 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 3244 ldt_info.limit = tswap32(target_ldt_info->limit); 3245 ldt_info.flags = tswap32(target_ldt_info->flags); 3246 unlock_user_struct(target_ldt_info, ptr, 0); 3247 3248 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 3249 return -TARGET_EINVAL; 3250 seg_32bit = ldt_info.flags & 1; 3251 contents = (ldt_info.flags >> 1) & 3; 3252 read_exec_only = (ldt_info.flags >> 3) & 1; 3253 limit_in_pages = (ldt_info.flags >> 4) & 1; 3254 seg_not_present = (ldt_info.flags >> 5) & 1; 3255 useable = (ldt_info.flags >> 6) & 1; 3256 #ifdef TARGET_ABI32 3257 lm = 0; 3258 #else 3259 lm = (ldt_info.flags >> 7) & 1; 3260 #endif 3261 if (contents == 3) { 3262 if (oldmode) 3263 return -TARGET_EINVAL; 3264 if (seg_not_present == 0) 3265 return -TARGET_EINVAL; 3266 } 3267 /* allocate the LDT */ 3268 if (!ldt_table) { 3269 env->ldt.base = target_mmap(0, 3270 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE, 3271 PROT_READ|PROT_WRITE, 3272 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); 3273 if (env->ldt.base == -1) 3274 return -TARGET_ENOMEM; 3275 memset(g2h(env->ldt.base), 0, 3276 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 3277 env->ldt.limit = 0xffff; 3278 ldt_table = g2h(env->ldt.base); 3279 } 3280 3281 /* NOTE: same code as Linux kernel */ 3282 /* Allow LDTs to be cleared by the user. */ 3283 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 3284 if (oldmode || 3285 (contents == 0 && 3286 read_exec_only == 1 && 3287 seg_32bit == 0 && 3288 limit_in_pages == 0 && 3289 seg_not_present == 1 && 3290 useable == 0 )) { 3291 entry_1 = 0; 3292 entry_2 = 0; 3293 goto install; 3294 } 3295 } 3296 3297 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 3298 (ldt_info.limit & 0x0ffff); 3299 entry_2 = (ldt_info.base_addr & 0xff000000) | 3300 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 3301 (ldt_info.limit & 0xf0000) | 3302 ((read_exec_only ^ 1) << 9) | 3303 (contents << 10) | 3304 ((seg_not_present ^ 1) << 15) | 3305 (seg_32bit << 22) | 3306 (limit_in_pages << 23) | 3307 (lm << 21) | 3308 0x7000; 3309 if (!oldmode) 3310 entry_2 |= (useable << 20); 3311 3312 /* Install the new entry ... */ 3313 install: 3314 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 3315 lp[0] = tswap32(entry_1); 3316 lp[1] = tswap32(entry_2); 3317 return 0; 3318 } 3319 3320 /* specific and weird i386 syscalls */ 3321 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, 3322 unsigned long bytecount) 3323 { 3324 abi_long ret; 3325 3326 switch (func) { 3327 case 0: 3328 ret = read_ldt(ptr, bytecount); 3329 break; 3330 case 1: 3331 ret = write_ldt(env, ptr, bytecount, 1); 3332 break; 3333 case 0x11: 3334 ret = write_ldt(env, ptr, bytecount, 0); 3335 break; 3336 default: 3337 ret = -TARGET_ENOSYS; 3338 break; 3339 } 3340 return ret; 3341 } 3342 3343 #if defined(TARGET_I386) && defined(TARGET_ABI32) 3344 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr) 3345 { 3346 uint64_t *gdt_table = g2h(env->gdt.base); 3347 struct target_modify_ldt_ldt_s ldt_info; 3348 struct target_modify_ldt_ldt_s *target_ldt_info; 3349 int seg_32bit, contents, read_exec_only, limit_in_pages; 3350 int seg_not_present, useable, lm; 3351 uint32_t *lp, entry_1, entry_2; 3352 int i; 3353 3354 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 3355 if (!target_ldt_info) 3356 return -TARGET_EFAULT; 3357 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 3358 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 3359 ldt_info.limit = tswap32(target_ldt_info->limit); 3360 ldt_info.flags = tswap32(target_ldt_info->flags); 3361 if (ldt_info.entry_number == -1) { 3362 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) { 3363 if (gdt_table[i] == 0) { 3364 ldt_info.entry_number = i; 3365 target_ldt_info->entry_number = tswap32(i); 3366 break; 3367 } 3368 } 3369 } 3370 unlock_user_struct(target_ldt_info, ptr, 1); 3371 3372 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || 3373 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX) 3374 return -TARGET_EINVAL; 3375 seg_32bit = ldt_info.flags & 1; 3376 contents = (ldt_info.flags >> 1) & 3; 3377 read_exec_only = (ldt_info.flags >> 3) & 1; 3378 limit_in_pages = (ldt_info.flags >> 4) & 1; 3379 seg_not_present = (ldt_info.flags >> 5) & 1; 3380 useable = (ldt_info.flags >> 6) & 1; 3381 #ifdef TARGET_ABI32 3382 lm = 0; 3383 #else 3384 lm = (ldt_info.flags >> 7) & 1; 3385 #endif 3386 3387 if (contents == 3) { 3388 if (seg_not_present == 0) 3389 return -TARGET_EINVAL; 3390 } 3391 3392 /* NOTE: same code as Linux kernel */ 3393 /* Allow LDTs to be cleared by the user. */ 3394 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 3395 if ((contents == 0 && 3396 read_exec_only == 1 && 3397 seg_32bit == 0 && 3398 limit_in_pages == 0 && 3399 seg_not_present == 1 && 3400 useable == 0 )) { 3401 entry_1 = 0; 3402 entry_2 = 0; 3403 goto install; 3404 } 3405 } 3406 3407 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 3408 (ldt_info.limit & 0x0ffff); 3409 entry_2 = (ldt_info.base_addr & 0xff000000) | 3410 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 3411 (ldt_info.limit & 0xf0000) | 3412 ((read_exec_only ^ 1) << 9) | 3413 (contents << 10) | 3414 ((seg_not_present ^ 1) << 15) | 3415 (seg_32bit << 22) | 3416 (limit_in_pages << 23) | 3417 (useable << 20) | 3418 (lm << 21) | 3419 0x7000; 3420 3421 /* Install the new entry ... */ 3422 install: 3423 lp = (uint32_t *)(gdt_table + ldt_info.entry_number); 3424 lp[0] = tswap32(entry_1); 3425 lp[1] = tswap32(entry_2); 3426 return 0; 3427 } 3428 3429 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr) 3430 { 3431 struct target_modify_ldt_ldt_s *target_ldt_info; 3432 uint64_t *gdt_table = g2h(env->gdt.base); 3433 uint32_t base_addr, limit, flags; 3434 int seg_32bit, contents, read_exec_only, limit_in_pages, idx; 3435 int seg_not_present, useable, lm; 3436 uint32_t *lp, entry_1, entry_2; 3437 3438 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 3439 if (!target_ldt_info) 3440 return -TARGET_EFAULT; 3441 idx = tswap32(target_ldt_info->entry_number); 3442 if (idx < TARGET_GDT_ENTRY_TLS_MIN || 3443 idx > TARGET_GDT_ENTRY_TLS_MAX) { 3444 unlock_user_struct(target_ldt_info, ptr, 1); 3445 return -TARGET_EINVAL; 3446 } 3447 lp = (uint32_t *)(gdt_table + idx); 3448 entry_1 = tswap32(lp[0]); 3449 entry_2 = tswap32(lp[1]); 3450 3451 read_exec_only = ((entry_2 >> 9) & 1) ^ 1; 3452 contents = (entry_2 >> 10) & 3; 3453 seg_not_present = ((entry_2 >> 15) & 1) ^ 1; 3454 seg_32bit = (entry_2 >> 22) & 1; 3455 limit_in_pages = (entry_2 >> 23) & 1; 3456 useable = (entry_2 >> 20) & 1; 3457 #ifdef TARGET_ABI32 3458 lm = 0; 3459 #else 3460 lm = (entry_2 >> 21) & 1; 3461 #endif 3462 flags = (seg_32bit << 0) | (contents << 1) | 3463 (read_exec_only << 3) | (limit_in_pages << 4) | 3464 (seg_not_present << 5) | (useable << 6) | (lm << 7); 3465 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000); 3466 base_addr = (entry_1 >> 16) | 3467 (entry_2 & 0xff000000) | 3468 ((entry_2 & 0xff) << 16); 3469 target_ldt_info->base_addr = tswapl(base_addr); 3470 target_ldt_info->limit = tswap32(limit); 3471 target_ldt_info->flags = tswap32(flags); 3472 unlock_user_struct(target_ldt_info, ptr, 1); 3473 return 0; 3474 } 3475 #endif /* TARGET_I386 && TARGET_ABI32 */ 3476 3477 #ifndef TARGET_ABI32 3478 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) 3479 { 3480 abi_long ret; 3481 abi_ulong val; 3482 int idx; 3483 3484 switch(code) { 3485 case TARGET_ARCH_SET_GS: 3486 case TARGET_ARCH_SET_FS: 3487 if (code == TARGET_ARCH_SET_GS) 3488 idx = R_GS; 3489 else 3490 idx = R_FS; 3491 cpu_x86_load_seg(env, idx, 0); 3492 env->segs[idx].base = addr; 3493 break; 3494 case TARGET_ARCH_GET_GS: 3495 case TARGET_ARCH_GET_FS: 3496 if (code == TARGET_ARCH_GET_GS) 3497 idx = R_GS; 3498 else 3499 idx = R_FS; 3500 val = env->segs[idx].base; 3501 if (put_user(val, addr, abi_ulong)) 3502 return -TARGET_EFAULT; 3503 break; 3504 default: 3505 ret = -TARGET_EINVAL; 3506 break; 3507 } 3508 return 0; 3509 } 3510 #endif 3511 3512 #endif /* defined(TARGET_I386) */ 3513 3514 #if defined(CONFIG_USE_NPTL) 3515 3516 #define NEW_STACK_SIZE PTHREAD_STACK_MIN 3517 3518 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER; 3519 typedef struct { 3520 CPUState *env; 3521 pthread_mutex_t mutex; 3522 pthread_cond_t cond; 3523 pthread_t thread; 3524 uint32_t tid; 3525 abi_ulong child_tidptr; 3526 abi_ulong parent_tidptr; 3527 sigset_t sigmask; 3528 } new_thread_info; 3529 3530 static void *clone_func(void *arg) 3531 { 3532 new_thread_info *info = arg; 3533 CPUState *env; 3534 TaskState *ts; 3535 3536 env = info->env; 3537 thread_env = env; 3538 ts = (TaskState *)thread_env->opaque; 3539 info->tid = gettid(); 3540 env->host_tid = info->tid; 3541 task_settid(ts); 3542 if (info->child_tidptr) 3543 put_user_u32(info->tid, info->child_tidptr); 3544 if (info->parent_tidptr) 3545 put_user_u32(info->tid, info->parent_tidptr); 3546 /* Enable signals. */ 3547 sigprocmask(SIG_SETMASK, &info->sigmask, NULL); 3548 /* Signal to the parent that we're ready. */ 3549 pthread_mutex_lock(&info->mutex); 3550 pthread_cond_broadcast(&info->cond); 3551 pthread_mutex_unlock(&info->mutex); 3552 /* Wait until the parent has finshed initializing the tls state. */ 3553 pthread_mutex_lock(&clone_lock); 3554 pthread_mutex_unlock(&clone_lock); 3555 cpu_loop(env); 3556 /* never exits */ 3557 return NULL; 3558 } 3559 #else 3560 /* this stack is the equivalent of the kernel stack associated with a 3561 thread/process */ 3562 #define NEW_STACK_SIZE 8192 3563 3564 static int clone_func(void *arg) 3565 { 3566 CPUState *env = arg; 3567 cpu_loop(env); 3568 /* never exits */ 3569 return 0; 3570 } 3571 #endif 3572 3573 /* do_fork() Must return host values and target errnos (unlike most 3574 do_*() functions). */ 3575 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp, 3576 abi_ulong parent_tidptr, target_ulong newtls, 3577 abi_ulong child_tidptr) 3578 { 3579 int ret; 3580 TaskState *ts; 3581 uint8_t *new_stack; 3582 CPUState *new_env; 3583 #if defined(CONFIG_USE_NPTL) 3584 unsigned int nptl_flags; 3585 sigset_t sigmask; 3586 #endif 3587 3588 /* Emulate vfork() with fork() */ 3589 if (flags & CLONE_VFORK) 3590 flags &= ~(CLONE_VFORK | CLONE_VM); 3591 3592 if (flags & CLONE_VM) { 3593 TaskState *parent_ts = (TaskState *)env->opaque; 3594 #if defined(CONFIG_USE_NPTL) 3595 new_thread_info info; 3596 pthread_attr_t attr; 3597 #endif 3598 ts = qemu_mallocz(sizeof(TaskState) + NEW_STACK_SIZE); 3599 init_task_state(ts); 3600 new_stack = ts->stack; 3601 /* we create a new CPU instance. */ 3602 new_env = cpu_copy(env); 3603 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC) 3604 cpu_reset(new_env); 3605 #endif 3606 /* Init regs that differ from the parent. */ 3607 cpu_clone_regs(new_env, newsp); 3608 new_env->opaque = ts; 3609 ts->bprm = parent_ts->bprm; 3610 ts->info = parent_ts->info; 3611 #if defined(CONFIG_USE_NPTL) 3612 nptl_flags = flags; 3613 flags &= ~CLONE_NPTL_FLAGS2; 3614 3615 if (nptl_flags & CLONE_CHILD_CLEARTID) { 3616 ts->child_tidptr = child_tidptr; 3617 } 3618 3619 if (nptl_flags & CLONE_SETTLS) 3620 cpu_set_tls (new_env, newtls); 3621 3622 /* Grab a mutex so that thread setup appears atomic. */ 3623 pthread_mutex_lock(&clone_lock); 3624 3625 memset(&info, 0, sizeof(info)); 3626 pthread_mutex_init(&info.mutex, NULL); 3627 pthread_mutex_lock(&info.mutex); 3628 pthread_cond_init(&info.cond, NULL); 3629 info.env = new_env; 3630 if (nptl_flags & CLONE_CHILD_SETTID) 3631 info.child_tidptr = child_tidptr; 3632 if (nptl_flags & CLONE_PARENT_SETTID) 3633 info.parent_tidptr = parent_tidptr; 3634 3635 ret = pthread_attr_init(&attr); 3636 ret = pthread_attr_setstack(&attr, new_stack, NEW_STACK_SIZE); 3637 /* It is not safe to deliver signals until the child has finished 3638 initializing, so temporarily block all signals. */ 3639 sigfillset(&sigmask); 3640 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask); 3641 3642 ret = pthread_create(&info.thread, &attr, clone_func, &info); 3643 /* TODO: Free new CPU state if thread creation failed. */ 3644 3645 sigprocmask(SIG_SETMASK, &info.sigmask, NULL); 3646 pthread_attr_destroy(&attr); 3647 if (ret == 0) { 3648 /* Wait for the child to initialize. */ 3649 pthread_cond_wait(&info.cond, &info.mutex); 3650 ret = info.tid; 3651 if (flags & CLONE_PARENT_SETTID) 3652 put_user_u32(ret, parent_tidptr); 3653 } else { 3654 ret = -1; 3655 } 3656 pthread_mutex_unlock(&info.mutex); 3657 pthread_cond_destroy(&info.cond); 3658 pthread_mutex_destroy(&info.mutex); 3659 pthread_mutex_unlock(&clone_lock); 3660 #else 3661 if (flags & CLONE_NPTL_FLAGS2) 3662 return -EINVAL; 3663 /* This is probably going to die very quickly, but do it anyway. */ 3664 #ifdef __ia64__ 3665 ret = __clone2(clone_func, new_stack, NEW_STACK_SIZE, flags, new_env); 3666 #else 3667 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 3668 #endif 3669 #endif 3670 } else { 3671 /* if no CLONE_VM, we consider it is a fork */ 3672 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) 3673 return -EINVAL; 3674 fork_start(); 3675 ret = fork(); 3676 if (ret == 0) { 3677 /* Child Process. */ 3678 cpu_clone_regs(env, newsp); 3679 fork_end(1); 3680 #if defined(CONFIG_USE_NPTL) 3681 /* There is a race condition here. The parent process could 3682 theoretically read the TID in the child process before the child 3683 tid is set. This would require using either ptrace 3684 (not implemented) or having *_tidptr to point at a shared memory 3685 mapping. We can't repeat the spinlock hack used above because 3686 the child process gets its own copy of the lock. */ 3687 if (flags & CLONE_CHILD_SETTID) 3688 put_user_u32(gettid(), child_tidptr); 3689 if (flags & CLONE_PARENT_SETTID) 3690 put_user_u32(gettid(), parent_tidptr); 3691 ts = (TaskState *)env->opaque; 3692 if (flags & CLONE_SETTLS) 3693 cpu_set_tls (env, newtls); 3694 if (flags & CLONE_CHILD_CLEARTID) 3695 ts->child_tidptr = child_tidptr; 3696 #endif 3697 } else { 3698 fork_end(0); 3699 } 3700 } 3701 return ret; 3702 } 3703 3704 /* warning : doesn't handle linux specific flags... */ 3705 static int target_to_host_fcntl_cmd(int cmd) 3706 { 3707 switch(cmd) { 3708 case TARGET_F_DUPFD: 3709 case TARGET_F_GETFD: 3710 case TARGET_F_SETFD: 3711 case TARGET_F_GETFL: 3712 case TARGET_F_SETFL: 3713 return cmd; 3714 case TARGET_F_GETLK: 3715 return F_GETLK; 3716 case TARGET_F_SETLK: 3717 return F_SETLK; 3718 case TARGET_F_SETLKW: 3719 return F_SETLKW; 3720 case TARGET_F_GETOWN: 3721 return F_GETOWN; 3722 case TARGET_F_SETOWN: 3723 return F_SETOWN; 3724 case TARGET_F_GETSIG: 3725 return F_GETSIG; 3726 case TARGET_F_SETSIG: 3727 return F_SETSIG; 3728 #if TARGET_ABI_BITS == 32 3729 case TARGET_F_GETLK64: 3730 return F_GETLK64; 3731 case TARGET_F_SETLK64: 3732 return F_SETLK64; 3733 case TARGET_F_SETLKW64: 3734 return F_SETLKW64; 3735 #endif 3736 case TARGET_F_SETLEASE: 3737 return F_SETLEASE; 3738 case TARGET_F_GETLEASE: 3739 return F_GETLEASE; 3740 #ifdef F_DUPFD_CLOEXEC 3741 case TARGET_F_DUPFD_CLOEXEC: 3742 return F_DUPFD_CLOEXEC; 3743 #endif 3744 case TARGET_F_NOTIFY: 3745 return F_NOTIFY; 3746 default: 3747 return -TARGET_EINVAL; 3748 } 3749 return -TARGET_EINVAL; 3750 } 3751 3752 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 3753 { 3754 struct flock fl; 3755 struct target_flock *target_fl; 3756 struct flock64 fl64; 3757 struct target_flock64 *target_fl64; 3758 abi_long ret; 3759 int host_cmd = target_to_host_fcntl_cmd(cmd); 3760 3761 if (host_cmd == -TARGET_EINVAL) 3762 return host_cmd; 3763 3764 switch(cmd) { 3765 case TARGET_F_GETLK: 3766 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 3767 return -TARGET_EFAULT; 3768 fl.l_type = tswap16(target_fl->l_type); 3769 fl.l_whence = tswap16(target_fl->l_whence); 3770 fl.l_start = tswapl(target_fl->l_start); 3771 fl.l_len = tswapl(target_fl->l_len); 3772 fl.l_pid = tswap32(target_fl->l_pid); 3773 unlock_user_struct(target_fl, arg, 0); 3774 ret = get_errno(fcntl(fd, host_cmd, &fl)); 3775 if (ret == 0) { 3776 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) 3777 return -TARGET_EFAULT; 3778 target_fl->l_type = tswap16(fl.l_type); 3779 target_fl->l_whence = tswap16(fl.l_whence); 3780 target_fl->l_start = tswapl(fl.l_start); 3781 target_fl->l_len = tswapl(fl.l_len); 3782 target_fl->l_pid = tswap32(fl.l_pid); 3783 unlock_user_struct(target_fl, arg, 1); 3784 } 3785 break; 3786 3787 case TARGET_F_SETLK: 3788 case TARGET_F_SETLKW: 3789 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 3790 return -TARGET_EFAULT; 3791 fl.l_type = tswap16(target_fl->l_type); 3792 fl.l_whence = tswap16(target_fl->l_whence); 3793 fl.l_start = tswapl(target_fl->l_start); 3794 fl.l_len = tswapl(target_fl->l_len); 3795 fl.l_pid = tswap32(target_fl->l_pid); 3796 unlock_user_struct(target_fl, arg, 0); 3797 ret = get_errno(fcntl(fd, host_cmd, &fl)); 3798 break; 3799 3800 case TARGET_F_GETLK64: 3801 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 3802 return -TARGET_EFAULT; 3803 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 3804 fl64.l_whence = tswap16(target_fl64->l_whence); 3805 fl64.l_start = tswapl(target_fl64->l_start); 3806 fl64.l_len = tswapl(target_fl64->l_len); 3807 fl64.l_pid = tswap32(target_fl64->l_pid); 3808 unlock_user_struct(target_fl64, arg, 0); 3809 ret = get_errno(fcntl(fd, host_cmd, &fl64)); 3810 if (ret == 0) { 3811 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) 3812 return -TARGET_EFAULT; 3813 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 3814 target_fl64->l_whence = tswap16(fl64.l_whence); 3815 target_fl64->l_start = tswapl(fl64.l_start); 3816 target_fl64->l_len = tswapl(fl64.l_len); 3817 target_fl64->l_pid = tswap32(fl64.l_pid); 3818 unlock_user_struct(target_fl64, arg, 1); 3819 } 3820 break; 3821 case TARGET_F_SETLK64: 3822 case TARGET_F_SETLKW64: 3823 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 3824 return -TARGET_EFAULT; 3825 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 3826 fl64.l_whence = tswap16(target_fl64->l_whence); 3827 fl64.l_start = tswapl(target_fl64->l_start); 3828 fl64.l_len = tswapl(target_fl64->l_len); 3829 fl64.l_pid = tswap32(target_fl64->l_pid); 3830 unlock_user_struct(target_fl64, arg, 0); 3831 ret = get_errno(fcntl(fd, host_cmd, &fl64)); 3832 break; 3833 3834 case TARGET_F_GETFL: 3835 ret = get_errno(fcntl(fd, host_cmd, arg)); 3836 if (ret >= 0) { 3837 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 3838 } 3839 break; 3840 3841 case TARGET_F_SETFL: 3842 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl))); 3843 break; 3844 3845 case TARGET_F_SETOWN: 3846 case TARGET_F_GETOWN: 3847 case TARGET_F_SETSIG: 3848 case TARGET_F_GETSIG: 3849 case TARGET_F_SETLEASE: 3850 case TARGET_F_GETLEASE: 3851 ret = get_errno(fcntl(fd, host_cmd, arg)); 3852 break; 3853 3854 default: 3855 ret = get_errno(fcntl(fd, cmd, arg)); 3856 break; 3857 } 3858 return ret; 3859 } 3860 3861 #ifdef USE_UID16 3862 3863 static inline int high2lowuid(int uid) 3864 { 3865 if (uid > 65535) 3866 return 65534; 3867 else 3868 return uid; 3869 } 3870 3871 static inline int high2lowgid(int gid) 3872 { 3873 if (gid > 65535) 3874 return 65534; 3875 else 3876 return gid; 3877 } 3878 3879 static inline int low2highuid(int uid) 3880 { 3881 if ((int16_t)uid == -1) 3882 return -1; 3883 else 3884 return uid; 3885 } 3886 3887 static inline int low2highgid(int gid) 3888 { 3889 if ((int16_t)gid == -1) 3890 return -1; 3891 else 3892 return gid; 3893 } 3894 3895 #endif /* USE_UID16 */ 3896 3897 void syscall_init(void) 3898 { 3899 IOCTLEntry *ie; 3900 const argtype *arg_type; 3901 int size; 3902 int i; 3903 3904 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 3905 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 3906 #include "syscall_types.h" 3907 #undef STRUCT 3908 #undef STRUCT_SPECIAL 3909 3910 /* we patch the ioctl size if necessary. We rely on the fact that 3911 no ioctl has all the bits at '1' in the size field */ 3912 ie = ioctl_entries; 3913 while (ie->target_cmd != 0) { 3914 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 3915 TARGET_IOC_SIZEMASK) { 3916 arg_type = ie->arg_type; 3917 if (arg_type[0] != TYPE_PTR) { 3918 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 3919 ie->target_cmd); 3920 exit(1); 3921 } 3922 arg_type++; 3923 size = thunk_type_size(arg_type, 0); 3924 ie->target_cmd = (ie->target_cmd & 3925 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 3926 (size << TARGET_IOC_SIZESHIFT); 3927 } 3928 3929 /* Build target_to_host_errno_table[] table from 3930 * host_to_target_errno_table[]. */ 3931 for (i=0; i < ERRNO_TABLE_SIZE; i++) 3932 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 3933 3934 /* automatic consistency check if same arch */ 3935 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \ 3936 (defined(__x86_64__) && defined(TARGET_X86_64)) 3937 if (unlikely(ie->target_cmd != ie->host_cmd)) { 3938 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n", 3939 ie->name, ie->target_cmd, ie->host_cmd); 3940 } 3941 #endif 3942 ie++; 3943 } 3944 } 3945 3946 #if TARGET_ABI_BITS == 32 3947 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 3948 { 3949 #ifdef TARGET_WORDS_BIGENDIAN 3950 return ((uint64_t)word0 << 32) | word1; 3951 #else 3952 return ((uint64_t)word1 << 32) | word0; 3953 #endif 3954 } 3955 #else /* TARGET_ABI_BITS == 32 */ 3956 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 3957 { 3958 return word0; 3959 } 3960 #endif /* TARGET_ABI_BITS != 32 */ 3961 3962 #ifdef TARGET_NR_truncate64 3963 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 3964 abi_long arg2, 3965 abi_long arg3, 3966 abi_long arg4) 3967 { 3968 #ifdef TARGET_ARM 3969 if (((CPUARMState *)cpu_env)->eabi) 3970 { 3971 arg2 = arg3; 3972 arg3 = arg4; 3973 } 3974 #endif 3975 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 3976 } 3977 #endif 3978 3979 #ifdef TARGET_NR_ftruncate64 3980 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 3981 abi_long arg2, 3982 abi_long arg3, 3983 abi_long arg4) 3984 { 3985 #ifdef TARGET_ARM 3986 if (((CPUARMState *)cpu_env)->eabi) 3987 { 3988 arg2 = arg3; 3989 arg3 = arg4; 3990 } 3991 #endif 3992 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 3993 } 3994 #endif 3995 3996 static inline abi_long target_to_host_timespec(struct timespec *host_ts, 3997 abi_ulong target_addr) 3998 { 3999 struct target_timespec *target_ts; 4000 4001 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) 4002 return -TARGET_EFAULT; 4003 host_ts->tv_sec = tswapl(target_ts->tv_sec); 4004 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 4005 unlock_user_struct(target_ts, target_addr, 0); 4006 return 0; 4007 } 4008 4009 static inline abi_long host_to_target_timespec(abi_ulong target_addr, 4010 struct timespec *host_ts) 4011 { 4012 struct target_timespec *target_ts; 4013 4014 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) 4015 return -TARGET_EFAULT; 4016 target_ts->tv_sec = tswapl(host_ts->tv_sec); 4017 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 4018 unlock_user_struct(target_ts, target_addr, 1); 4019 return 0; 4020 } 4021 4022 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat) 4023 static inline abi_long host_to_target_stat64(void *cpu_env, 4024 abi_ulong target_addr, 4025 struct stat *host_st) 4026 { 4027 #ifdef TARGET_ARM 4028 if (((CPUARMState *)cpu_env)->eabi) { 4029 struct target_eabi_stat64 *target_st; 4030 4031 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) 4032 return -TARGET_EFAULT; 4033 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4034 __put_user(host_st->st_dev, &target_st->st_dev); 4035 __put_user(host_st->st_ino, &target_st->st_ino); 4036 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4037 __put_user(host_st->st_ino, &target_st->__st_ino); 4038 #endif 4039 __put_user(host_st->st_mode, &target_st->st_mode); 4040 __put_user(host_st->st_nlink, &target_st->st_nlink); 4041 __put_user(host_st->st_uid, &target_st->st_uid); 4042 __put_user(host_st->st_gid, &target_st->st_gid); 4043 __put_user(host_st->st_rdev, &target_st->st_rdev); 4044 __put_user(host_st->st_size, &target_st->st_size); 4045 __put_user(host_st->st_blksize, &target_st->st_blksize); 4046 __put_user(host_st->st_blocks, &target_st->st_blocks); 4047 __put_user(host_st->st_atime, &target_st->target_st_atime); 4048 __put_user(host_st->st_mtime, &target_st->target_st_mtime); 4049 __put_user(host_st->st_ctime, &target_st->target_st_ctime); 4050 unlock_user_struct(target_st, target_addr, 1); 4051 } else 4052 #endif 4053 { 4054 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA) 4055 struct target_stat *target_st; 4056 #else 4057 struct target_stat64 *target_st; 4058 #endif 4059 4060 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) 4061 return -TARGET_EFAULT; 4062 memset(target_st, 0, sizeof(*target_st)); 4063 __put_user(host_st->st_dev, &target_st->st_dev); 4064 __put_user(host_st->st_ino, &target_st->st_ino); 4065 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4066 __put_user(host_st->st_ino, &target_st->__st_ino); 4067 #endif 4068 __put_user(host_st->st_mode, &target_st->st_mode); 4069 __put_user(host_st->st_nlink, &target_st->st_nlink); 4070 __put_user(host_st->st_uid, &target_st->st_uid); 4071 __put_user(host_st->st_gid, &target_st->st_gid); 4072 __put_user(host_st->st_rdev, &target_st->st_rdev); 4073 /* XXX: better use of kernel struct */ 4074 __put_user(host_st->st_size, &target_st->st_size); 4075 __put_user(host_st->st_blksize, &target_st->st_blksize); 4076 __put_user(host_st->st_blocks, &target_st->st_blocks); 4077 __put_user(host_st->st_atime, &target_st->target_st_atime); 4078 __put_user(host_st->st_mtime, &target_st->target_st_mtime); 4079 __put_user(host_st->st_ctime, &target_st->target_st_ctime); 4080 unlock_user_struct(target_st, target_addr, 1); 4081 } 4082 4083 return 0; 4084 } 4085 #endif 4086 4087 #if defined(CONFIG_USE_NPTL) 4088 /* ??? Using host futex calls even when target atomic operations 4089 are not really atomic probably breaks things. However implementing 4090 futexes locally would make futexes shared between multiple processes 4091 tricky. However they're probably useless because guest atomic 4092 operations won't work either. */ 4093 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout, 4094 target_ulong uaddr2, int val3) 4095 { 4096 struct timespec ts, *pts; 4097 int base_op; 4098 4099 /* ??? We assume FUTEX_* constants are the same on both host 4100 and target. */ 4101 #ifdef FUTEX_CMD_MASK 4102 base_op = op & FUTEX_CMD_MASK; 4103 #else 4104 base_op = op; 4105 #endif 4106 switch (base_op) { 4107 case FUTEX_WAIT: 4108 if (timeout) { 4109 pts = &ts; 4110 target_to_host_timespec(pts, timeout); 4111 } else { 4112 pts = NULL; 4113 } 4114 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val), 4115 pts, NULL, 0)); 4116 case FUTEX_WAKE: 4117 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0)); 4118 case FUTEX_FD: 4119 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0)); 4120 case FUTEX_REQUEUE: 4121 case FUTEX_CMP_REQUEUE: 4122 case FUTEX_WAKE_OP: 4123 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the 4124 TIMEOUT parameter is interpreted as a uint32_t by the kernel. 4125 But the prototype takes a `struct timespec *'; insert casts 4126 to satisfy the compiler. We do not need to tswap TIMEOUT 4127 since it's not compared to guest memory. */ 4128 pts = (struct timespec *)(uintptr_t) timeout; 4129 return get_errno(sys_futex(g2h(uaddr), op, val, pts, 4130 g2h(uaddr2), 4131 (base_op == FUTEX_CMP_REQUEUE 4132 ? tswap32(val3) 4133 : val3))); 4134 default: 4135 return -TARGET_ENOSYS; 4136 } 4137 } 4138 #endif 4139 4140 /* Map host to target signal numbers for the wait family of syscalls. 4141 Assume all other status bits are the same. */ 4142 static int host_to_target_waitstatus(int status) 4143 { 4144 if (WIFSIGNALED(status)) { 4145 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f); 4146 } 4147 if (WIFSTOPPED(status)) { 4148 return (host_to_target_signal(WSTOPSIG(status)) << 8) 4149 | (status & 0xff); 4150 } 4151 return status; 4152 } 4153 4154 int get_osversion(void) 4155 { 4156 static int osversion; 4157 struct new_utsname buf; 4158 const char *s; 4159 int i, n, tmp; 4160 if (osversion) 4161 return osversion; 4162 if (qemu_uname_release && *qemu_uname_release) { 4163 s = qemu_uname_release; 4164 } else { 4165 if (sys_uname(&buf)) 4166 return 0; 4167 s = buf.release; 4168 } 4169 tmp = 0; 4170 for (i = 0; i < 3; i++) { 4171 n = 0; 4172 while (*s >= '0' && *s <= '9') { 4173 n *= 10; 4174 n += *s - '0'; 4175 s++; 4176 } 4177 tmp = (tmp << 8) + n; 4178 if (*s == '.') 4179 s++; 4180 } 4181 osversion = tmp; 4182 return osversion; 4183 } 4184 4185 /* do_syscall() should always have a single exit point at the end so 4186 that actions, such as logging of syscall results, can be performed. 4187 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 4188 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 4189 abi_long arg2, abi_long arg3, abi_long arg4, 4190 abi_long arg5, abi_long arg6) 4191 { 4192 abi_long ret; 4193 struct stat st; 4194 struct statfs stfs; 4195 void *p; 4196 4197 #ifdef DEBUG 4198 gemu_log("syscall %d", num); 4199 #endif 4200 if(do_strace) 4201 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 4202 4203 switch(num) { 4204 case TARGET_NR_exit: 4205 #ifdef CONFIG_USE_NPTL 4206 /* In old applications this may be used to implement _exit(2). 4207 However in threaded applictions it is used for thread termination, 4208 and _exit_group is used for application termination. 4209 Do thread termination if we have more then one thread. */ 4210 /* FIXME: This probably breaks if a signal arrives. We should probably 4211 be disabling signals. */ 4212 if (first_cpu->next_cpu) { 4213 TaskState *ts; 4214 CPUState **lastp; 4215 CPUState *p; 4216 4217 cpu_list_lock(); 4218 lastp = &first_cpu; 4219 p = first_cpu; 4220 while (p && p != (CPUState *)cpu_env) { 4221 lastp = &p->next_cpu; 4222 p = p->next_cpu; 4223 } 4224 /* If we didn't find the CPU for this thread then something is 4225 horribly wrong. */ 4226 if (!p) 4227 abort(); 4228 /* Remove the CPU from the list. */ 4229 *lastp = p->next_cpu; 4230 cpu_list_unlock(); 4231 ts = ((CPUState *)cpu_env)->opaque; 4232 if (ts->child_tidptr) { 4233 put_user_u32(0, ts->child_tidptr); 4234 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX, 4235 NULL, NULL, 0); 4236 } 4237 /* TODO: Free CPU state. */ 4238 pthread_exit(NULL); 4239 } 4240 #endif 4241 #ifdef TARGET_GPROF 4242 _mcleanup(); 4243 #endif 4244 gdb_exit(cpu_env, arg1); 4245 _exit(arg1); 4246 ret = 0; /* avoid warning */ 4247 break; 4248 case TARGET_NR_read: 4249 if (arg3 == 0) 4250 ret = 0; 4251 else { 4252 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4253 goto efault; 4254 ret = get_errno(read(arg1, p, arg3)); 4255 unlock_user(p, arg2, ret); 4256 } 4257 break; 4258 case TARGET_NR_write: 4259 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4260 goto efault; 4261 ret = get_errno(write(arg1, p, arg3)); 4262 unlock_user(p, arg2, 0); 4263 break; 4264 case TARGET_NR_open: 4265 if (!(p = lock_user_string(arg1))) 4266 goto efault; 4267 ret = get_errno(open(path(p), 4268 target_to_host_bitmask(arg2, fcntl_flags_tbl), 4269 arg3)); 4270 unlock_user(p, arg1, 0); 4271 break; 4272 #if defined(TARGET_NR_openat) && defined(__NR_openat) 4273 case TARGET_NR_openat: 4274 if (!(p = lock_user_string(arg2))) 4275 goto efault; 4276 ret = get_errno(sys_openat(arg1, 4277 path(p), 4278 target_to_host_bitmask(arg3, fcntl_flags_tbl), 4279 arg4)); 4280 unlock_user(p, arg2, 0); 4281 break; 4282 #endif 4283 case TARGET_NR_close: 4284 ret = get_errno(close(arg1)); 4285 break; 4286 case TARGET_NR_brk: 4287 ret = do_brk(arg1); 4288 break; 4289 case TARGET_NR_fork: 4290 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0)); 4291 break; 4292 #ifdef TARGET_NR_waitpid 4293 case TARGET_NR_waitpid: 4294 { 4295 int status; 4296 ret = get_errno(waitpid(arg1, &status, arg3)); 4297 if (!is_error(ret) && arg2 4298 && put_user_s32(host_to_target_waitstatus(status), arg2)) 4299 goto efault; 4300 } 4301 break; 4302 #endif 4303 #ifdef TARGET_NR_waitid 4304 case TARGET_NR_waitid: 4305 { 4306 siginfo_t info; 4307 info.si_pid = 0; 4308 ret = get_errno(waitid(arg1, arg2, &info, arg4)); 4309 if (!is_error(ret) && arg3 && info.si_pid != 0) { 4310 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) 4311 goto efault; 4312 host_to_target_siginfo(p, &info); 4313 unlock_user(p, arg3, sizeof(target_siginfo_t)); 4314 } 4315 } 4316 break; 4317 #endif 4318 #ifdef TARGET_NR_creat /* not on alpha */ 4319 case TARGET_NR_creat: 4320 if (!(p = lock_user_string(arg1))) 4321 goto efault; 4322 ret = get_errno(creat(p, arg2)); 4323 unlock_user(p, arg1, 0); 4324 break; 4325 #endif 4326 case TARGET_NR_link: 4327 { 4328 void * p2; 4329 p = lock_user_string(arg1); 4330 p2 = lock_user_string(arg2); 4331 if (!p || !p2) 4332 ret = -TARGET_EFAULT; 4333 else 4334 ret = get_errno(link(p, p2)); 4335 unlock_user(p2, arg2, 0); 4336 unlock_user(p, arg1, 0); 4337 } 4338 break; 4339 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 4340 case TARGET_NR_linkat: 4341 { 4342 void * p2 = NULL; 4343 if (!arg2 || !arg4) 4344 goto efault; 4345 p = lock_user_string(arg2); 4346 p2 = lock_user_string(arg4); 4347 if (!p || !p2) 4348 ret = -TARGET_EFAULT; 4349 else 4350 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 4351 unlock_user(p, arg2, 0); 4352 unlock_user(p2, arg4, 0); 4353 } 4354 break; 4355 #endif 4356 case TARGET_NR_unlink: 4357 if (!(p = lock_user_string(arg1))) 4358 goto efault; 4359 ret = get_errno(unlink(p)); 4360 unlock_user(p, arg1, 0); 4361 break; 4362 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 4363 case TARGET_NR_unlinkat: 4364 if (!(p = lock_user_string(arg2))) 4365 goto efault; 4366 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 4367 unlock_user(p, arg2, 0); 4368 break; 4369 #endif 4370 case TARGET_NR_execve: 4371 { 4372 char **argp, **envp; 4373 int argc, envc; 4374 abi_ulong gp; 4375 abi_ulong guest_argp; 4376 abi_ulong guest_envp; 4377 abi_ulong addr; 4378 char **q; 4379 4380 argc = 0; 4381 guest_argp = arg2; 4382 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) { 4383 if (get_user_ual(addr, gp)) 4384 goto efault; 4385 if (!addr) 4386 break; 4387 argc++; 4388 } 4389 envc = 0; 4390 guest_envp = arg3; 4391 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) { 4392 if (get_user_ual(addr, gp)) 4393 goto efault; 4394 if (!addr) 4395 break; 4396 envc++; 4397 } 4398 4399 argp = alloca((argc + 1) * sizeof(void *)); 4400 envp = alloca((envc + 1) * sizeof(void *)); 4401 4402 for (gp = guest_argp, q = argp; gp; 4403 gp += sizeof(abi_ulong), q++) { 4404 if (get_user_ual(addr, gp)) 4405 goto execve_efault; 4406 if (!addr) 4407 break; 4408 if (!(*q = lock_user_string(addr))) 4409 goto execve_efault; 4410 } 4411 *q = NULL; 4412 4413 for (gp = guest_envp, q = envp; gp; 4414 gp += sizeof(abi_ulong), q++) { 4415 if (get_user_ual(addr, gp)) 4416 goto execve_efault; 4417 if (!addr) 4418 break; 4419 if (!(*q = lock_user_string(addr))) 4420 goto execve_efault; 4421 } 4422 *q = NULL; 4423 4424 if (!(p = lock_user_string(arg1))) 4425 goto execve_efault; 4426 ret = get_errno(execve(p, argp, envp)); 4427 unlock_user(p, arg1, 0); 4428 4429 goto execve_end; 4430 4431 execve_efault: 4432 ret = -TARGET_EFAULT; 4433 4434 execve_end: 4435 for (gp = guest_argp, q = argp; *q; 4436 gp += sizeof(abi_ulong), q++) { 4437 if (get_user_ual(addr, gp) 4438 || !addr) 4439 break; 4440 unlock_user(*q, addr, 0); 4441 } 4442 for (gp = guest_envp, q = envp; *q; 4443 gp += sizeof(abi_ulong), q++) { 4444 if (get_user_ual(addr, gp) 4445 || !addr) 4446 break; 4447 unlock_user(*q, addr, 0); 4448 } 4449 } 4450 break; 4451 case TARGET_NR_chdir: 4452 if (!(p = lock_user_string(arg1))) 4453 goto efault; 4454 ret = get_errno(chdir(p)); 4455 unlock_user(p, arg1, 0); 4456 break; 4457 #ifdef TARGET_NR_time 4458 case TARGET_NR_time: 4459 { 4460 time_t host_time; 4461 ret = get_errno(time(&host_time)); 4462 if (!is_error(ret) 4463 && arg1 4464 && put_user_sal(host_time, arg1)) 4465 goto efault; 4466 } 4467 break; 4468 #endif 4469 case TARGET_NR_mknod: 4470 if (!(p = lock_user_string(arg1))) 4471 goto efault; 4472 ret = get_errno(mknod(p, arg2, arg3)); 4473 unlock_user(p, arg1, 0); 4474 break; 4475 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 4476 case TARGET_NR_mknodat: 4477 if (!(p = lock_user_string(arg2))) 4478 goto efault; 4479 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 4480 unlock_user(p, arg2, 0); 4481 break; 4482 #endif 4483 case TARGET_NR_chmod: 4484 if (!(p = lock_user_string(arg1))) 4485 goto efault; 4486 ret = get_errno(chmod(p, arg2)); 4487 unlock_user(p, arg1, 0); 4488 break; 4489 #ifdef TARGET_NR_break 4490 case TARGET_NR_break: 4491 goto unimplemented; 4492 #endif 4493 #ifdef TARGET_NR_oldstat 4494 case TARGET_NR_oldstat: 4495 goto unimplemented; 4496 #endif 4497 case TARGET_NR_lseek: 4498 ret = get_errno(lseek(arg1, arg2, arg3)); 4499 break; 4500 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA) 4501 /* Alpha specific */ 4502 case TARGET_NR_getxpid: 4503 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid(); 4504 ret = get_errno(getpid()); 4505 break; 4506 #endif 4507 #ifdef TARGET_NR_getpid 4508 case TARGET_NR_getpid: 4509 ret = get_errno(getpid()); 4510 break; 4511 #endif 4512 case TARGET_NR_mount: 4513 { 4514 /* need to look at the data field */ 4515 void *p2, *p3; 4516 p = lock_user_string(arg1); 4517 p2 = lock_user_string(arg2); 4518 p3 = lock_user_string(arg3); 4519 if (!p || !p2 || !p3) 4520 ret = -TARGET_EFAULT; 4521 else { 4522 /* FIXME - arg5 should be locked, but it isn't clear how to 4523 * do that since it's not guaranteed to be a NULL-terminated 4524 * string. 4525 */ 4526 if ( ! arg5 ) 4527 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL)); 4528 else 4529 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); 4530 } 4531 unlock_user(p, arg1, 0); 4532 unlock_user(p2, arg2, 0); 4533 unlock_user(p3, arg3, 0); 4534 break; 4535 } 4536 #ifdef TARGET_NR_umount 4537 case TARGET_NR_umount: 4538 if (!(p = lock_user_string(arg1))) 4539 goto efault; 4540 ret = get_errno(umount(p)); 4541 unlock_user(p, arg1, 0); 4542 break; 4543 #endif 4544 #ifdef TARGET_NR_stime /* not on alpha */ 4545 case TARGET_NR_stime: 4546 { 4547 time_t host_time; 4548 if (get_user_sal(host_time, arg1)) 4549 goto efault; 4550 ret = get_errno(stime(&host_time)); 4551 } 4552 break; 4553 #endif 4554 case TARGET_NR_ptrace: 4555 goto unimplemented; 4556 #ifdef TARGET_NR_alarm /* not on alpha */ 4557 case TARGET_NR_alarm: 4558 ret = alarm(arg1); 4559 break; 4560 #endif 4561 #ifdef TARGET_NR_oldfstat 4562 case TARGET_NR_oldfstat: 4563 goto unimplemented; 4564 #endif 4565 #ifdef TARGET_NR_pause /* not on alpha */ 4566 case TARGET_NR_pause: 4567 ret = get_errno(pause()); 4568 break; 4569 #endif 4570 #ifdef TARGET_NR_utime 4571 case TARGET_NR_utime: 4572 { 4573 struct utimbuf tbuf, *host_tbuf; 4574 struct target_utimbuf *target_tbuf; 4575 if (arg2) { 4576 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) 4577 goto efault; 4578 tbuf.actime = tswapl(target_tbuf->actime); 4579 tbuf.modtime = tswapl(target_tbuf->modtime); 4580 unlock_user_struct(target_tbuf, arg2, 0); 4581 host_tbuf = &tbuf; 4582 } else { 4583 host_tbuf = NULL; 4584 } 4585 if (!(p = lock_user_string(arg1))) 4586 goto efault; 4587 ret = get_errno(utime(p, host_tbuf)); 4588 unlock_user(p, arg1, 0); 4589 } 4590 break; 4591 #endif 4592 case TARGET_NR_utimes: 4593 { 4594 struct timeval *tvp, tv[2]; 4595 if (arg2) { 4596 if (copy_from_user_timeval(&tv[0], arg2) 4597 || copy_from_user_timeval(&tv[1], 4598 arg2 + sizeof(struct target_timeval))) 4599 goto efault; 4600 tvp = tv; 4601 } else { 4602 tvp = NULL; 4603 } 4604 if (!(p = lock_user_string(arg1))) 4605 goto efault; 4606 ret = get_errno(utimes(p, tvp)); 4607 unlock_user(p, arg1, 0); 4608 } 4609 break; 4610 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat) 4611 case TARGET_NR_futimesat: 4612 { 4613 struct timeval *tvp, tv[2]; 4614 if (arg3) { 4615 if (copy_from_user_timeval(&tv[0], arg3) 4616 || copy_from_user_timeval(&tv[1], 4617 arg3 + sizeof(struct target_timeval))) 4618 goto efault; 4619 tvp = tv; 4620 } else { 4621 tvp = NULL; 4622 } 4623 if (!(p = lock_user_string(arg2))) 4624 goto efault; 4625 ret = get_errno(sys_futimesat(arg1, path(p), tvp)); 4626 unlock_user(p, arg2, 0); 4627 } 4628 break; 4629 #endif 4630 #ifdef TARGET_NR_stty 4631 case TARGET_NR_stty: 4632 goto unimplemented; 4633 #endif 4634 #ifdef TARGET_NR_gtty 4635 case TARGET_NR_gtty: 4636 goto unimplemented; 4637 #endif 4638 case TARGET_NR_access: 4639 if (!(p = lock_user_string(arg1))) 4640 goto efault; 4641 ret = get_errno(access(path(p), arg2)); 4642 unlock_user(p, arg1, 0); 4643 break; 4644 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 4645 case TARGET_NR_faccessat: 4646 if (!(p = lock_user_string(arg2))) 4647 goto efault; 4648 ret = get_errno(sys_faccessat(arg1, p, arg3)); 4649 unlock_user(p, arg2, 0); 4650 break; 4651 #endif 4652 #ifdef TARGET_NR_nice /* not on alpha */ 4653 case TARGET_NR_nice: 4654 ret = get_errno(nice(arg1)); 4655 break; 4656 #endif 4657 #ifdef TARGET_NR_ftime 4658 case TARGET_NR_ftime: 4659 goto unimplemented; 4660 #endif 4661 case TARGET_NR_sync: 4662 sync(); 4663 ret = 0; 4664 break; 4665 case TARGET_NR_kill: 4666 ret = get_errno(kill(arg1, target_to_host_signal(arg2))); 4667 break; 4668 case TARGET_NR_rename: 4669 { 4670 void *p2; 4671 p = lock_user_string(arg1); 4672 p2 = lock_user_string(arg2); 4673 if (!p || !p2) 4674 ret = -TARGET_EFAULT; 4675 else 4676 ret = get_errno(rename(p, p2)); 4677 unlock_user(p2, arg2, 0); 4678 unlock_user(p, arg1, 0); 4679 } 4680 break; 4681 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 4682 case TARGET_NR_renameat: 4683 { 4684 void *p2; 4685 p = lock_user_string(arg2); 4686 p2 = lock_user_string(arg4); 4687 if (!p || !p2) 4688 ret = -TARGET_EFAULT; 4689 else 4690 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 4691 unlock_user(p2, arg4, 0); 4692 unlock_user(p, arg2, 0); 4693 } 4694 break; 4695 #endif 4696 case TARGET_NR_mkdir: 4697 if (!(p = lock_user_string(arg1))) 4698 goto efault; 4699 ret = get_errno(mkdir(p, arg2)); 4700 unlock_user(p, arg1, 0); 4701 break; 4702 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 4703 case TARGET_NR_mkdirat: 4704 if (!(p = lock_user_string(arg2))) 4705 goto efault; 4706 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 4707 unlock_user(p, arg2, 0); 4708 break; 4709 #endif 4710 case TARGET_NR_rmdir: 4711 if (!(p = lock_user_string(arg1))) 4712 goto efault; 4713 ret = get_errno(rmdir(p)); 4714 unlock_user(p, arg1, 0); 4715 break; 4716 case TARGET_NR_dup: 4717 ret = get_errno(dup(arg1)); 4718 break; 4719 case TARGET_NR_pipe: 4720 ret = do_pipe(cpu_env, arg1, 0, 0); 4721 break; 4722 #ifdef TARGET_NR_pipe2 4723 case TARGET_NR_pipe2: 4724 ret = do_pipe(cpu_env, arg1, arg2, 1); 4725 break; 4726 #endif 4727 case TARGET_NR_times: 4728 { 4729 struct target_tms *tmsp; 4730 struct tms tms; 4731 ret = get_errno(times(&tms)); 4732 if (arg1) { 4733 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); 4734 if (!tmsp) 4735 goto efault; 4736 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 4737 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 4738 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 4739 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 4740 } 4741 if (!is_error(ret)) 4742 ret = host_to_target_clock_t(ret); 4743 } 4744 break; 4745 #ifdef TARGET_NR_prof 4746 case TARGET_NR_prof: 4747 goto unimplemented; 4748 #endif 4749 #ifdef TARGET_NR_signal 4750 case TARGET_NR_signal: 4751 goto unimplemented; 4752 #endif 4753 case TARGET_NR_acct: 4754 if (arg1 == 0) { 4755 ret = get_errno(acct(NULL)); 4756 } else { 4757 if (!(p = lock_user_string(arg1))) 4758 goto efault; 4759 ret = get_errno(acct(path(p))); 4760 unlock_user(p, arg1, 0); 4761 } 4762 break; 4763 #ifdef TARGET_NR_umount2 /* not on alpha */ 4764 case TARGET_NR_umount2: 4765 if (!(p = lock_user_string(arg1))) 4766 goto efault; 4767 ret = get_errno(umount2(p, arg2)); 4768 unlock_user(p, arg1, 0); 4769 break; 4770 #endif 4771 #ifdef TARGET_NR_lock 4772 case TARGET_NR_lock: 4773 goto unimplemented; 4774 #endif 4775 case TARGET_NR_ioctl: 4776 ret = do_ioctl(arg1, arg2, arg3); 4777 break; 4778 case TARGET_NR_fcntl: 4779 ret = do_fcntl(arg1, arg2, arg3); 4780 break; 4781 #ifdef TARGET_NR_mpx 4782 case TARGET_NR_mpx: 4783 goto unimplemented; 4784 #endif 4785 case TARGET_NR_setpgid: 4786 ret = get_errno(setpgid(arg1, arg2)); 4787 break; 4788 #ifdef TARGET_NR_ulimit 4789 case TARGET_NR_ulimit: 4790 goto unimplemented; 4791 #endif 4792 #ifdef TARGET_NR_oldolduname 4793 case TARGET_NR_oldolduname: 4794 goto unimplemented; 4795 #endif 4796 case TARGET_NR_umask: 4797 ret = get_errno(umask(arg1)); 4798 break; 4799 case TARGET_NR_chroot: 4800 if (!(p = lock_user_string(arg1))) 4801 goto efault; 4802 ret = get_errno(chroot(p)); 4803 unlock_user(p, arg1, 0); 4804 break; 4805 case TARGET_NR_ustat: 4806 goto unimplemented; 4807 case TARGET_NR_dup2: 4808 ret = get_errno(dup2(arg1, arg2)); 4809 break; 4810 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) 4811 case TARGET_NR_dup3: 4812 ret = get_errno(dup3(arg1, arg2, arg3)); 4813 break; 4814 #endif 4815 #ifdef TARGET_NR_getppid /* not on alpha */ 4816 case TARGET_NR_getppid: 4817 ret = get_errno(getppid()); 4818 break; 4819 #endif 4820 case TARGET_NR_getpgrp: 4821 ret = get_errno(getpgrp()); 4822 break; 4823 case TARGET_NR_setsid: 4824 ret = get_errno(setsid()); 4825 break; 4826 #ifdef TARGET_NR_sigaction 4827 case TARGET_NR_sigaction: 4828 { 4829 #if defined(TARGET_ALPHA) 4830 struct target_sigaction act, oact, *pact = 0; 4831 struct target_old_sigaction *old_act; 4832 if (arg2) { 4833 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 4834 goto efault; 4835 act._sa_handler = old_act->_sa_handler; 4836 target_siginitset(&act.sa_mask, old_act->sa_mask); 4837 act.sa_flags = old_act->sa_flags; 4838 act.sa_restorer = 0; 4839 unlock_user_struct(old_act, arg2, 0); 4840 pact = &act; 4841 } 4842 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4843 if (!is_error(ret) && arg3) { 4844 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 4845 goto efault; 4846 old_act->_sa_handler = oact._sa_handler; 4847 old_act->sa_mask = oact.sa_mask.sig[0]; 4848 old_act->sa_flags = oact.sa_flags; 4849 unlock_user_struct(old_act, arg3, 1); 4850 } 4851 #elif defined(TARGET_MIPS) 4852 struct target_sigaction act, oact, *pact, *old_act; 4853 4854 if (arg2) { 4855 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 4856 goto efault; 4857 act._sa_handler = old_act->_sa_handler; 4858 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 4859 act.sa_flags = old_act->sa_flags; 4860 unlock_user_struct(old_act, arg2, 0); 4861 pact = &act; 4862 } else { 4863 pact = NULL; 4864 } 4865 4866 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4867 4868 if (!is_error(ret) && arg3) { 4869 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 4870 goto efault; 4871 old_act->_sa_handler = oact._sa_handler; 4872 old_act->sa_flags = oact.sa_flags; 4873 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 4874 old_act->sa_mask.sig[1] = 0; 4875 old_act->sa_mask.sig[2] = 0; 4876 old_act->sa_mask.sig[3] = 0; 4877 unlock_user_struct(old_act, arg3, 1); 4878 } 4879 #else 4880 struct target_old_sigaction *old_act; 4881 struct target_sigaction act, oact, *pact; 4882 if (arg2) { 4883 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 4884 goto efault; 4885 act._sa_handler = old_act->_sa_handler; 4886 target_siginitset(&act.sa_mask, old_act->sa_mask); 4887 act.sa_flags = old_act->sa_flags; 4888 act.sa_restorer = old_act->sa_restorer; 4889 unlock_user_struct(old_act, arg2, 0); 4890 pact = &act; 4891 } else { 4892 pact = NULL; 4893 } 4894 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4895 if (!is_error(ret) && arg3) { 4896 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 4897 goto efault; 4898 old_act->_sa_handler = oact._sa_handler; 4899 old_act->sa_mask = oact.sa_mask.sig[0]; 4900 old_act->sa_flags = oact.sa_flags; 4901 old_act->sa_restorer = oact.sa_restorer; 4902 unlock_user_struct(old_act, arg3, 1); 4903 } 4904 #endif 4905 } 4906 break; 4907 #endif 4908 case TARGET_NR_rt_sigaction: 4909 { 4910 #if defined(TARGET_ALPHA) 4911 struct target_sigaction act, oact, *pact = 0; 4912 struct target_rt_sigaction *rt_act; 4913 /* ??? arg4 == sizeof(sigset_t). */ 4914 if (arg2) { 4915 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) 4916 goto efault; 4917 act._sa_handler = rt_act->_sa_handler; 4918 act.sa_mask = rt_act->sa_mask; 4919 act.sa_flags = rt_act->sa_flags; 4920 act.sa_restorer = arg5; 4921 unlock_user_struct(rt_act, arg2, 0); 4922 pact = &act; 4923 } 4924 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4925 if (!is_error(ret) && arg3) { 4926 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0)) 4927 goto efault; 4928 rt_act->_sa_handler = oact._sa_handler; 4929 rt_act->sa_mask = oact.sa_mask; 4930 rt_act->sa_flags = oact.sa_flags; 4931 unlock_user_struct(rt_act, arg3, 1); 4932 } 4933 #else 4934 struct target_sigaction *act; 4935 struct target_sigaction *oact; 4936 4937 if (arg2) { 4938 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) 4939 goto efault; 4940 } else 4941 act = NULL; 4942 if (arg3) { 4943 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { 4944 ret = -TARGET_EFAULT; 4945 goto rt_sigaction_fail; 4946 } 4947 } else 4948 oact = NULL; 4949 ret = get_errno(do_sigaction(arg1, act, oact)); 4950 rt_sigaction_fail: 4951 if (act) 4952 unlock_user_struct(act, arg2, 0); 4953 if (oact) 4954 unlock_user_struct(oact, arg3, 1); 4955 #endif 4956 } 4957 break; 4958 #ifdef TARGET_NR_sgetmask /* not on alpha */ 4959 case TARGET_NR_sgetmask: 4960 { 4961 sigset_t cur_set; 4962 abi_ulong target_set; 4963 sigprocmask(0, NULL, &cur_set); 4964 host_to_target_old_sigset(&target_set, &cur_set); 4965 ret = target_set; 4966 } 4967 break; 4968 #endif 4969 #ifdef TARGET_NR_ssetmask /* not on alpha */ 4970 case TARGET_NR_ssetmask: 4971 { 4972 sigset_t set, oset, cur_set; 4973 abi_ulong target_set = arg1; 4974 sigprocmask(0, NULL, &cur_set); 4975 target_to_host_old_sigset(&set, &target_set); 4976 sigorset(&set, &set, &cur_set); 4977 sigprocmask(SIG_SETMASK, &set, &oset); 4978 host_to_target_old_sigset(&target_set, &oset); 4979 ret = target_set; 4980 } 4981 break; 4982 #endif 4983 #ifdef TARGET_NR_sigprocmask 4984 case TARGET_NR_sigprocmask: 4985 { 4986 #if defined(TARGET_ALPHA) 4987 sigset_t set, oldset; 4988 abi_ulong mask; 4989 int how; 4990 4991 switch (arg1) { 4992 case TARGET_SIG_BLOCK: 4993 how = SIG_BLOCK; 4994 break; 4995 case TARGET_SIG_UNBLOCK: 4996 how = SIG_UNBLOCK; 4997 break; 4998 case TARGET_SIG_SETMASK: 4999 how = SIG_SETMASK; 5000 break; 5001 default: 5002 ret = -TARGET_EINVAL; 5003 goto fail; 5004 } 5005 mask = arg2; 5006 target_to_host_old_sigset(&set, &mask); 5007 5008 ret = get_errno(sigprocmask(how, &set, &oldset)); 5009 5010 if (!is_error(ret)) { 5011 host_to_target_old_sigset(&mask, &oldset); 5012 ret = mask; 5013 ((CPUAlphaState *)cpu_env)->[IR_V0] = 0; /* force no error */ 5014 } 5015 #else 5016 sigset_t set, oldset, *set_ptr; 5017 int how; 5018 5019 if (arg2) { 5020 switch (arg1) { 5021 case TARGET_SIG_BLOCK: 5022 how = SIG_BLOCK; 5023 break; 5024 case TARGET_SIG_UNBLOCK: 5025 how = SIG_UNBLOCK; 5026 break; 5027 case TARGET_SIG_SETMASK: 5028 how = SIG_SETMASK; 5029 break; 5030 default: 5031 ret = -TARGET_EINVAL; 5032 goto fail; 5033 } 5034 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 5035 goto efault; 5036 target_to_host_old_sigset(&set, p); 5037 unlock_user(p, arg2, 0); 5038 set_ptr = &set; 5039 } else { 5040 how = 0; 5041 set_ptr = NULL; 5042 } 5043 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 5044 if (!is_error(ret) && arg3) { 5045 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 5046 goto efault; 5047 host_to_target_old_sigset(p, &oldset); 5048 unlock_user(p, arg3, sizeof(target_sigset_t)); 5049 } 5050 #endif 5051 } 5052 break; 5053 #endif 5054 case TARGET_NR_rt_sigprocmask: 5055 { 5056 int how = arg1; 5057 sigset_t set, oldset, *set_ptr; 5058 5059 if (arg2) { 5060 switch(how) { 5061 case TARGET_SIG_BLOCK: 5062 how = SIG_BLOCK; 5063 break; 5064 case TARGET_SIG_UNBLOCK: 5065 how = SIG_UNBLOCK; 5066 break; 5067 case TARGET_SIG_SETMASK: 5068 how = SIG_SETMASK; 5069 break; 5070 default: 5071 ret = -TARGET_EINVAL; 5072 goto fail; 5073 } 5074 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 5075 goto efault; 5076 target_to_host_sigset(&set, p); 5077 unlock_user(p, arg2, 0); 5078 set_ptr = &set; 5079 } else { 5080 how = 0; 5081 set_ptr = NULL; 5082 } 5083 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 5084 if (!is_error(ret) && arg3) { 5085 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 5086 goto efault; 5087 host_to_target_sigset(p, &oldset); 5088 unlock_user(p, arg3, sizeof(target_sigset_t)); 5089 } 5090 } 5091 break; 5092 #ifdef TARGET_NR_sigpending 5093 case TARGET_NR_sigpending: 5094 { 5095 sigset_t set; 5096 ret = get_errno(sigpending(&set)); 5097 if (!is_error(ret)) { 5098 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 5099 goto efault; 5100 host_to_target_old_sigset(p, &set); 5101 unlock_user(p, arg1, sizeof(target_sigset_t)); 5102 } 5103 } 5104 break; 5105 #endif 5106 case TARGET_NR_rt_sigpending: 5107 { 5108 sigset_t set; 5109 ret = get_errno(sigpending(&set)); 5110 if (!is_error(ret)) { 5111 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 5112 goto efault; 5113 host_to_target_sigset(p, &set); 5114 unlock_user(p, arg1, sizeof(target_sigset_t)); 5115 } 5116 } 5117 break; 5118 #ifdef TARGET_NR_sigsuspend 5119 case TARGET_NR_sigsuspend: 5120 { 5121 sigset_t set; 5122 #if defined(TARGET_ALPHA) 5123 abi_ulong mask = arg1; 5124 target_to_host_old_sigset(&set, &mask); 5125 #else 5126 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 5127 goto efault; 5128 target_to_host_old_sigset(&set, p); 5129 unlock_user(p, arg1, 0); 5130 #endif 5131 ret = get_errno(sigsuspend(&set)); 5132 } 5133 break; 5134 #endif 5135 case TARGET_NR_rt_sigsuspend: 5136 { 5137 sigset_t set; 5138 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 5139 goto efault; 5140 target_to_host_sigset(&set, p); 5141 unlock_user(p, arg1, 0); 5142 ret = get_errno(sigsuspend(&set)); 5143 } 5144 break; 5145 case TARGET_NR_rt_sigtimedwait: 5146 { 5147 sigset_t set; 5148 struct timespec uts, *puts; 5149 siginfo_t uinfo; 5150 5151 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 5152 goto efault; 5153 target_to_host_sigset(&set, p); 5154 unlock_user(p, arg1, 0); 5155 if (arg3) { 5156 puts = &uts; 5157 target_to_host_timespec(puts, arg3); 5158 } else { 5159 puts = NULL; 5160 } 5161 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 5162 if (!is_error(ret) && arg2) { 5163 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0))) 5164 goto efault; 5165 host_to_target_siginfo(p, &uinfo); 5166 unlock_user(p, arg2, sizeof(target_siginfo_t)); 5167 } 5168 } 5169 break; 5170 case TARGET_NR_rt_sigqueueinfo: 5171 { 5172 siginfo_t uinfo; 5173 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) 5174 goto efault; 5175 target_to_host_siginfo(&uinfo, p); 5176 unlock_user(p, arg1, 0); 5177 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 5178 } 5179 break; 5180 #ifdef TARGET_NR_sigreturn 5181 case TARGET_NR_sigreturn: 5182 /* NOTE: ret is eax, so not transcoding must be done */ 5183 ret = do_sigreturn(cpu_env); 5184 break; 5185 #endif 5186 case TARGET_NR_rt_sigreturn: 5187 /* NOTE: ret is eax, so not transcoding must be done */ 5188 ret = do_rt_sigreturn(cpu_env); 5189 break; 5190 case TARGET_NR_sethostname: 5191 if (!(p = lock_user_string(arg1))) 5192 goto efault; 5193 ret = get_errno(sethostname(p, arg2)); 5194 unlock_user(p, arg1, 0); 5195 break; 5196 case TARGET_NR_setrlimit: 5197 { 5198 int resource = arg1; 5199 struct target_rlimit *target_rlim; 5200 struct rlimit rlim; 5201 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) 5202 goto efault; 5203 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur); 5204 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max); 5205 unlock_user_struct(target_rlim, arg2, 0); 5206 ret = get_errno(setrlimit(resource, &rlim)); 5207 } 5208 break; 5209 case TARGET_NR_getrlimit: 5210 { 5211 int resource = arg1; 5212 struct target_rlimit *target_rlim; 5213 struct rlimit rlim; 5214 5215 ret = get_errno(getrlimit(resource, &rlim)); 5216 if (!is_error(ret)) { 5217 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 5218 goto efault; 5219 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); 5220 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); 5221 unlock_user_struct(target_rlim, arg2, 1); 5222 } 5223 } 5224 break; 5225 case TARGET_NR_getrusage: 5226 { 5227 struct rusage rusage; 5228 ret = get_errno(getrusage(arg1, &rusage)); 5229 if (!is_error(ret)) { 5230 host_to_target_rusage(arg2, &rusage); 5231 } 5232 } 5233 break; 5234 case TARGET_NR_gettimeofday: 5235 { 5236 struct timeval tv; 5237 ret = get_errno(gettimeofday(&tv, NULL)); 5238 if (!is_error(ret)) { 5239 if (copy_to_user_timeval(arg1, &tv)) 5240 goto efault; 5241 } 5242 } 5243 break; 5244 case TARGET_NR_settimeofday: 5245 { 5246 struct timeval tv; 5247 if (copy_from_user_timeval(&tv, arg1)) 5248 goto efault; 5249 ret = get_errno(settimeofday(&tv, NULL)); 5250 } 5251 break; 5252 #ifdef TARGET_NR_select 5253 case TARGET_NR_select: 5254 { 5255 struct target_sel_arg_struct *sel; 5256 abi_ulong inp, outp, exp, tvp; 5257 long nsel; 5258 5259 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) 5260 goto efault; 5261 nsel = tswapl(sel->n); 5262 inp = tswapl(sel->inp); 5263 outp = tswapl(sel->outp); 5264 exp = tswapl(sel->exp); 5265 tvp = tswapl(sel->tvp); 5266 unlock_user_struct(sel, arg1, 0); 5267 ret = do_select(nsel, inp, outp, exp, tvp); 5268 } 5269 break; 5270 #endif 5271 #ifdef TARGET_NR_pselect6 5272 case TARGET_NR_pselect6: 5273 goto unimplemented_nowarn; 5274 #endif 5275 case TARGET_NR_symlink: 5276 { 5277 void *p2; 5278 p = lock_user_string(arg1); 5279 p2 = lock_user_string(arg2); 5280 if (!p || !p2) 5281 ret = -TARGET_EFAULT; 5282 else 5283 ret = get_errno(symlink(p, p2)); 5284 unlock_user(p2, arg2, 0); 5285 unlock_user(p, arg1, 0); 5286 } 5287 break; 5288 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 5289 case TARGET_NR_symlinkat: 5290 { 5291 void *p2; 5292 p = lock_user_string(arg1); 5293 p2 = lock_user_string(arg3); 5294 if (!p || !p2) 5295 ret = -TARGET_EFAULT; 5296 else 5297 ret = get_errno(sys_symlinkat(p, arg2, p2)); 5298 unlock_user(p2, arg3, 0); 5299 unlock_user(p, arg1, 0); 5300 } 5301 break; 5302 #endif 5303 #ifdef TARGET_NR_oldlstat 5304 case TARGET_NR_oldlstat: 5305 goto unimplemented; 5306 #endif 5307 case TARGET_NR_readlink: 5308 { 5309 void *p2, *temp; 5310 p = lock_user_string(arg1); 5311 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); 5312 if (!p || !p2) 5313 ret = -TARGET_EFAULT; 5314 else { 5315 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) { 5316 char real[PATH_MAX]; 5317 temp = realpath(exec_path,real); 5318 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ; 5319 snprintf((char *)p2, arg3, "%s", real); 5320 } 5321 else 5322 ret = get_errno(readlink(path(p), p2, arg3)); 5323 } 5324 unlock_user(p2, arg2, ret); 5325 unlock_user(p, arg1, 0); 5326 } 5327 break; 5328 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 5329 case TARGET_NR_readlinkat: 5330 { 5331 void *p2; 5332 p = lock_user_string(arg2); 5333 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); 5334 if (!p || !p2) 5335 ret = -TARGET_EFAULT; 5336 else 5337 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 5338 unlock_user(p2, arg3, ret); 5339 unlock_user(p, arg2, 0); 5340 } 5341 break; 5342 #endif 5343 #ifdef TARGET_NR_uselib 5344 case TARGET_NR_uselib: 5345 goto unimplemented; 5346 #endif 5347 #ifdef TARGET_NR_swapon 5348 case TARGET_NR_swapon: 5349 if (!(p = lock_user_string(arg1))) 5350 goto efault; 5351 ret = get_errno(swapon(p, arg2)); 5352 unlock_user(p, arg1, 0); 5353 break; 5354 #endif 5355 case TARGET_NR_reboot: 5356 goto unimplemented; 5357 #ifdef TARGET_NR_readdir 5358 case TARGET_NR_readdir: 5359 goto unimplemented; 5360 #endif 5361 #ifdef TARGET_NR_mmap 5362 case TARGET_NR_mmap: 5363 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) 5364 { 5365 abi_ulong *v; 5366 abi_ulong v1, v2, v3, v4, v5, v6; 5367 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) 5368 goto efault; 5369 v1 = tswapl(v[0]); 5370 v2 = tswapl(v[1]); 5371 v3 = tswapl(v[2]); 5372 v4 = tswapl(v[3]); 5373 v5 = tswapl(v[4]); 5374 v6 = tswapl(v[5]); 5375 unlock_user(v, arg1, 0); 5376 ret = get_errno(target_mmap(v1, v2, v3, 5377 target_to_host_bitmask(v4, mmap_flags_tbl), 5378 v5, v6)); 5379 } 5380 #else 5381 ret = get_errno(target_mmap(arg1, arg2, arg3, 5382 target_to_host_bitmask(arg4, mmap_flags_tbl), 5383 arg5, 5384 arg6)); 5385 #endif 5386 break; 5387 #endif 5388 #ifdef TARGET_NR_mmap2 5389 case TARGET_NR_mmap2: 5390 #ifndef MMAP_SHIFT 5391 #define MMAP_SHIFT 12 5392 #endif 5393 ret = get_errno(target_mmap(arg1, arg2, arg3, 5394 target_to_host_bitmask(arg4, mmap_flags_tbl), 5395 arg5, 5396 arg6 << MMAP_SHIFT)); 5397 break; 5398 #endif 5399 case TARGET_NR_munmap: 5400 ret = get_errno(target_munmap(arg1, arg2)); 5401 break; 5402 case TARGET_NR_mprotect: 5403 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 5404 break; 5405 #ifdef TARGET_NR_mremap 5406 case TARGET_NR_mremap: 5407 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 5408 break; 5409 #endif 5410 /* ??? msync/mlock/munlock are broken for softmmu. */ 5411 #ifdef TARGET_NR_msync 5412 case TARGET_NR_msync: 5413 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 5414 break; 5415 #endif 5416 #ifdef TARGET_NR_mlock 5417 case TARGET_NR_mlock: 5418 ret = get_errno(mlock(g2h(arg1), arg2)); 5419 break; 5420 #endif 5421 #ifdef TARGET_NR_munlock 5422 case TARGET_NR_munlock: 5423 ret = get_errno(munlock(g2h(arg1), arg2)); 5424 break; 5425 #endif 5426 #ifdef TARGET_NR_mlockall 5427 case TARGET_NR_mlockall: 5428 ret = get_errno(mlockall(arg1)); 5429 break; 5430 #endif 5431 #ifdef TARGET_NR_munlockall 5432 case TARGET_NR_munlockall: 5433 ret = get_errno(munlockall()); 5434 break; 5435 #endif 5436 case TARGET_NR_truncate: 5437 if (!(p = lock_user_string(arg1))) 5438 goto efault; 5439 ret = get_errno(truncate(p, arg2)); 5440 unlock_user(p, arg1, 0); 5441 break; 5442 case TARGET_NR_ftruncate: 5443 ret = get_errno(ftruncate(arg1, arg2)); 5444 break; 5445 case TARGET_NR_fchmod: 5446 ret = get_errno(fchmod(arg1, arg2)); 5447 break; 5448 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 5449 case TARGET_NR_fchmodat: 5450 if (!(p = lock_user_string(arg2))) 5451 goto efault; 5452 ret = get_errno(sys_fchmodat(arg1, p, arg3)); 5453 unlock_user(p, arg2, 0); 5454 break; 5455 #endif 5456 case TARGET_NR_getpriority: 5457 /* libc does special remapping of the return value of 5458 * sys_getpriority() so it's just easiest to call 5459 * sys_getpriority() directly rather than through libc. */ 5460 ret = get_errno(sys_getpriority(arg1, arg2)); 5461 break; 5462 case TARGET_NR_setpriority: 5463 ret = get_errno(setpriority(arg1, arg2, arg3)); 5464 break; 5465 #ifdef TARGET_NR_profil 5466 case TARGET_NR_profil: 5467 goto unimplemented; 5468 #endif 5469 case TARGET_NR_statfs: 5470 if (!(p = lock_user_string(arg1))) 5471 goto efault; 5472 ret = get_errno(statfs(path(p), &stfs)); 5473 unlock_user(p, arg1, 0); 5474 convert_statfs: 5475 if (!is_error(ret)) { 5476 struct target_statfs *target_stfs; 5477 5478 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) 5479 goto efault; 5480 __put_user(stfs.f_type, &target_stfs->f_type); 5481 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 5482 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 5483 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 5484 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 5485 __put_user(stfs.f_files, &target_stfs->f_files); 5486 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 5487 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 5488 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 5489 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 5490 unlock_user_struct(target_stfs, arg2, 1); 5491 } 5492 break; 5493 case TARGET_NR_fstatfs: 5494 ret = get_errno(fstatfs(arg1, &stfs)); 5495 goto convert_statfs; 5496 #ifdef TARGET_NR_statfs64 5497 case TARGET_NR_statfs64: 5498 if (!(p = lock_user_string(arg1))) 5499 goto efault; 5500 ret = get_errno(statfs(path(p), &stfs)); 5501 unlock_user(p, arg1, 0); 5502 convert_statfs64: 5503 if (!is_error(ret)) { 5504 struct target_statfs64 *target_stfs; 5505 5506 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) 5507 goto efault; 5508 __put_user(stfs.f_type, &target_stfs->f_type); 5509 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 5510 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 5511 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 5512 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 5513 __put_user(stfs.f_files, &target_stfs->f_files); 5514 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 5515 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 5516 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 5517 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 5518 unlock_user_struct(target_stfs, arg3, 1); 5519 } 5520 break; 5521 case TARGET_NR_fstatfs64: 5522 ret = get_errno(fstatfs(arg1, &stfs)); 5523 goto convert_statfs64; 5524 #endif 5525 #ifdef TARGET_NR_ioperm 5526 case TARGET_NR_ioperm: 5527 goto unimplemented; 5528 #endif 5529 #ifdef TARGET_NR_socketcall 5530 case TARGET_NR_socketcall: 5531 ret = do_socketcall(arg1, arg2); 5532 break; 5533 #endif 5534 #ifdef TARGET_NR_accept 5535 case TARGET_NR_accept: 5536 ret = do_accept(arg1, arg2, arg3); 5537 break; 5538 #endif 5539 #ifdef TARGET_NR_bind 5540 case TARGET_NR_bind: 5541 ret = do_bind(arg1, arg2, arg3); 5542 break; 5543 #endif 5544 #ifdef TARGET_NR_connect 5545 case TARGET_NR_connect: 5546 ret = do_connect(arg1, arg2, arg3); 5547 break; 5548 #endif 5549 #ifdef TARGET_NR_getpeername 5550 case TARGET_NR_getpeername: 5551 ret = do_getpeername(arg1, arg2, arg3); 5552 break; 5553 #endif 5554 #ifdef TARGET_NR_getsockname 5555 case TARGET_NR_getsockname: 5556 ret = do_getsockname(arg1, arg2, arg3); 5557 break; 5558 #endif 5559 #ifdef TARGET_NR_getsockopt 5560 case TARGET_NR_getsockopt: 5561 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 5562 break; 5563 #endif 5564 #ifdef TARGET_NR_listen 5565 case TARGET_NR_listen: 5566 ret = get_errno(listen(arg1, arg2)); 5567 break; 5568 #endif 5569 #ifdef TARGET_NR_recv 5570 case TARGET_NR_recv: 5571 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 5572 break; 5573 #endif 5574 #ifdef TARGET_NR_recvfrom 5575 case TARGET_NR_recvfrom: 5576 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 5577 break; 5578 #endif 5579 #ifdef TARGET_NR_recvmsg 5580 case TARGET_NR_recvmsg: 5581 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 5582 break; 5583 #endif 5584 #ifdef TARGET_NR_send 5585 case TARGET_NR_send: 5586 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 5587 break; 5588 #endif 5589 #ifdef TARGET_NR_sendmsg 5590 case TARGET_NR_sendmsg: 5591 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 5592 break; 5593 #endif 5594 #ifdef TARGET_NR_sendto 5595 case TARGET_NR_sendto: 5596 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 5597 break; 5598 #endif 5599 #ifdef TARGET_NR_shutdown 5600 case TARGET_NR_shutdown: 5601 ret = get_errno(shutdown(arg1, arg2)); 5602 break; 5603 #endif 5604 #ifdef TARGET_NR_socket 5605 case TARGET_NR_socket: 5606 ret = do_socket(arg1, arg2, arg3); 5607 break; 5608 #endif 5609 #ifdef TARGET_NR_socketpair 5610 case TARGET_NR_socketpair: 5611 ret = do_socketpair(arg1, arg2, arg3, arg4); 5612 break; 5613 #endif 5614 #ifdef TARGET_NR_setsockopt 5615 case TARGET_NR_setsockopt: 5616 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 5617 break; 5618 #endif 5619 5620 case TARGET_NR_syslog: 5621 if (!(p = lock_user_string(arg2))) 5622 goto efault; 5623 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 5624 unlock_user(p, arg2, 0); 5625 break; 5626 5627 case TARGET_NR_setitimer: 5628 { 5629 struct itimerval value, ovalue, *pvalue; 5630 5631 if (arg2) { 5632 pvalue = &value; 5633 if (copy_from_user_timeval(&pvalue->it_interval, arg2) 5634 || copy_from_user_timeval(&pvalue->it_value, 5635 arg2 + sizeof(struct target_timeval))) 5636 goto efault; 5637 } else { 5638 pvalue = NULL; 5639 } 5640 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 5641 if (!is_error(ret) && arg3) { 5642 if (copy_to_user_timeval(arg3, 5643 &ovalue.it_interval) 5644 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), 5645 &ovalue.it_value)) 5646 goto efault; 5647 } 5648 } 5649 break; 5650 case TARGET_NR_getitimer: 5651 { 5652 struct itimerval value; 5653 5654 ret = get_errno(getitimer(arg1, &value)); 5655 if (!is_error(ret) && arg2) { 5656 if (copy_to_user_timeval(arg2, 5657 &value.it_interval) 5658 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), 5659 &value.it_value)) 5660 goto efault; 5661 } 5662 } 5663 break; 5664 case TARGET_NR_stat: 5665 if (!(p = lock_user_string(arg1))) 5666 goto efault; 5667 ret = get_errno(stat(path(p), &st)); 5668 unlock_user(p, arg1, 0); 5669 goto do_stat; 5670 case TARGET_NR_lstat: 5671 if (!(p = lock_user_string(arg1))) 5672 goto efault; 5673 ret = get_errno(lstat(path(p), &st)); 5674 unlock_user(p, arg1, 0); 5675 goto do_stat; 5676 case TARGET_NR_fstat: 5677 { 5678 ret = get_errno(fstat(arg1, &st)); 5679 do_stat: 5680 if (!is_error(ret)) { 5681 struct target_stat *target_st; 5682 5683 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 5684 goto efault; 5685 memset(target_st, 0, sizeof(*target_st)); 5686 __put_user(st.st_dev, &target_st->st_dev); 5687 __put_user(st.st_ino, &target_st->st_ino); 5688 __put_user(st.st_mode, &target_st->st_mode); 5689 __put_user(st.st_uid, &target_st->st_uid); 5690 __put_user(st.st_gid, &target_st->st_gid); 5691 __put_user(st.st_nlink, &target_st->st_nlink); 5692 __put_user(st.st_rdev, &target_st->st_rdev); 5693 __put_user(st.st_size, &target_st->st_size); 5694 __put_user(st.st_blksize, &target_st->st_blksize); 5695 __put_user(st.st_blocks, &target_st->st_blocks); 5696 __put_user(st.st_atime, &target_st->target_st_atime); 5697 __put_user(st.st_mtime, &target_st->target_st_mtime); 5698 __put_user(st.st_ctime, &target_st->target_st_ctime); 5699 unlock_user_struct(target_st, arg2, 1); 5700 } 5701 } 5702 break; 5703 #ifdef TARGET_NR_olduname 5704 case TARGET_NR_olduname: 5705 goto unimplemented; 5706 #endif 5707 #ifdef TARGET_NR_iopl 5708 case TARGET_NR_iopl: 5709 goto unimplemented; 5710 #endif 5711 case TARGET_NR_vhangup: 5712 ret = get_errno(vhangup()); 5713 break; 5714 #ifdef TARGET_NR_idle 5715 case TARGET_NR_idle: 5716 goto unimplemented; 5717 #endif 5718 #ifdef TARGET_NR_syscall 5719 case TARGET_NR_syscall: 5720 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 5721 break; 5722 #endif 5723 case TARGET_NR_wait4: 5724 { 5725 int status; 5726 abi_long status_ptr = arg2; 5727 struct rusage rusage, *rusage_ptr; 5728 abi_ulong target_rusage = arg4; 5729 if (target_rusage) 5730 rusage_ptr = &rusage; 5731 else 5732 rusage_ptr = NULL; 5733 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 5734 if (!is_error(ret)) { 5735 if (status_ptr) { 5736 status = host_to_target_waitstatus(status); 5737 if (put_user_s32(status, status_ptr)) 5738 goto efault; 5739 } 5740 if (target_rusage) 5741 host_to_target_rusage(target_rusage, &rusage); 5742 } 5743 } 5744 break; 5745 #ifdef TARGET_NR_swapoff 5746 case TARGET_NR_swapoff: 5747 if (!(p = lock_user_string(arg1))) 5748 goto efault; 5749 ret = get_errno(swapoff(p)); 5750 unlock_user(p, arg1, 0); 5751 break; 5752 #endif 5753 case TARGET_NR_sysinfo: 5754 { 5755 struct target_sysinfo *target_value; 5756 struct sysinfo value; 5757 ret = get_errno(sysinfo(&value)); 5758 if (!is_error(ret) && arg1) 5759 { 5760 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) 5761 goto efault; 5762 __put_user(value.uptime, &target_value->uptime); 5763 __put_user(value.loads[0], &target_value->loads[0]); 5764 __put_user(value.loads[1], &target_value->loads[1]); 5765 __put_user(value.loads[2], &target_value->loads[2]); 5766 __put_user(value.totalram, &target_value->totalram); 5767 __put_user(value.freeram, &target_value->freeram); 5768 __put_user(value.sharedram, &target_value->sharedram); 5769 __put_user(value.bufferram, &target_value->bufferram); 5770 __put_user(value.totalswap, &target_value->totalswap); 5771 __put_user(value.freeswap, &target_value->freeswap); 5772 __put_user(value.procs, &target_value->procs); 5773 __put_user(value.totalhigh, &target_value->totalhigh); 5774 __put_user(value.freehigh, &target_value->freehigh); 5775 __put_user(value.mem_unit, &target_value->mem_unit); 5776 unlock_user_struct(target_value, arg1, 1); 5777 } 5778 } 5779 break; 5780 #ifdef TARGET_NR_ipc 5781 case TARGET_NR_ipc: 5782 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 5783 break; 5784 #endif 5785 #ifdef TARGET_NR_semget 5786 case TARGET_NR_semget: 5787 ret = get_errno(semget(arg1, arg2, arg3)); 5788 break; 5789 #endif 5790 #ifdef TARGET_NR_semop 5791 case TARGET_NR_semop: 5792 ret = get_errno(do_semop(arg1, arg2, arg3)); 5793 break; 5794 #endif 5795 #ifdef TARGET_NR_semctl 5796 case TARGET_NR_semctl: 5797 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4); 5798 break; 5799 #endif 5800 #ifdef TARGET_NR_msgctl 5801 case TARGET_NR_msgctl: 5802 ret = do_msgctl(arg1, arg2, arg3); 5803 break; 5804 #endif 5805 #ifdef TARGET_NR_msgget 5806 case TARGET_NR_msgget: 5807 ret = get_errno(msgget(arg1, arg2)); 5808 break; 5809 #endif 5810 #ifdef TARGET_NR_msgrcv 5811 case TARGET_NR_msgrcv: 5812 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5); 5813 break; 5814 #endif 5815 #ifdef TARGET_NR_msgsnd 5816 case TARGET_NR_msgsnd: 5817 ret = do_msgsnd(arg1, arg2, arg3, arg4); 5818 break; 5819 #endif 5820 #ifdef TARGET_NR_shmget 5821 case TARGET_NR_shmget: 5822 ret = get_errno(shmget(arg1, arg2, arg3)); 5823 break; 5824 #endif 5825 #ifdef TARGET_NR_shmctl 5826 case TARGET_NR_shmctl: 5827 ret = do_shmctl(arg1, arg2, arg3); 5828 break; 5829 #endif 5830 #ifdef TARGET_NR_shmat 5831 case TARGET_NR_shmat: 5832 ret = do_shmat(arg1, arg2, arg3); 5833 break; 5834 #endif 5835 #ifdef TARGET_NR_shmdt 5836 case TARGET_NR_shmdt: 5837 ret = do_shmdt(arg1); 5838 break; 5839 #endif 5840 case TARGET_NR_fsync: 5841 ret = get_errno(fsync(arg1)); 5842 break; 5843 case TARGET_NR_clone: 5844 #if defined(TARGET_SH4) || defined(TARGET_ALPHA) 5845 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4)); 5846 #elif defined(TARGET_CRIS) 5847 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5)); 5848 #else 5849 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5)); 5850 #endif 5851 break; 5852 #ifdef __NR_exit_group 5853 /* new thread calls */ 5854 case TARGET_NR_exit_group: 5855 #ifdef TARGET_GPROF 5856 _mcleanup(); 5857 #endif 5858 gdb_exit(cpu_env, arg1); 5859 ret = get_errno(exit_group(arg1)); 5860 break; 5861 #endif 5862 case TARGET_NR_setdomainname: 5863 if (!(p = lock_user_string(arg1))) 5864 goto efault; 5865 ret = get_errno(setdomainname(p, arg2)); 5866 unlock_user(p, arg1, 0); 5867 break; 5868 case TARGET_NR_uname: 5869 /* no need to transcode because we use the linux syscall */ 5870 { 5871 struct new_utsname * buf; 5872 5873 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) 5874 goto efault; 5875 ret = get_errno(sys_uname(buf)); 5876 if (!is_error(ret)) { 5877 /* Overrite the native machine name with whatever is being 5878 emulated. */ 5879 strcpy (buf->machine, cpu_to_uname_machine(cpu_env)); 5880 /* Allow the user to override the reported release. */ 5881 if (qemu_uname_release && *qemu_uname_release) 5882 strcpy (buf->release, qemu_uname_release); 5883 } 5884 unlock_user_struct(buf, arg1, 1); 5885 } 5886 break; 5887 #ifdef TARGET_I386 5888 case TARGET_NR_modify_ldt: 5889 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); 5890 break; 5891 #if !defined(TARGET_X86_64) 5892 case TARGET_NR_vm86old: 5893 goto unimplemented; 5894 case TARGET_NR_vm86: 5895 ret = do_vm86(cpu_env, arg1, arg2); 5896 break; 5897 #endif 5898 #endif 5899 case TARGET_NR_adjtimex: 5900 goto unimplemented; 5901 #ifdef TARGET_NR_create_module 5902 case TARGET_NR_create_module: 5903 #endif 5904 case TARGET_NR_init_module: 5905 case TARGET_NR_delete_module: 5906 #ifdef TARGET_NR_get_kernel_syms 5907 case TARGET_NR_get_kernel_syms: 5908 #endif 5909 goto unimplemented; 5910 case TARGET_NR_quotactl: 5911 goto unimplemented; 5912 case TARGET_NR_getpgid: 5913 ret = get_errno(getpgid(arg1)); 5914 break; 5915 case TARGET_NR_fchdir: 5916 ret = get_errno(fchdir(arg1)); 5917 break; 5918 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 5919 case TARGET_NR_bdflush: 5920 goto unimplemented; 5921 #endif 5922 #ifdef TARGET_NR_sysfs 5923 case TARGET_NR_sysfs: 5924 goto unimplemented; 5925 #endif 5926 case TARGET_NR_personality: 5927 ret = get_errno(personality(arg1)); 5928 break; 5929 #ifdef TARGET_NR_afs_syscall 5930 case TARGET_NR_afs_syscall: 5931 goto unimplemented; 5932 #endif 5933 #ifdef TARGET_NR__llseek /* Not on alpha */ 5934 case TARGET_NR__llseek: 5935 { 5936 #if !defined(__NR_llseek) 5937 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 5938 if (put_user_s64(ret, arg4)) 5939 goto efault; 5940 #else 5941 int64_t res; 5942 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 5943 if (put_user_s64(res, arg4)) 5944 goto efault; 5945 #endif 5946 } 5947 break; 5948 #endif 5949 case TARGET_NR_getdents: 5950 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 5951 { 5952 struct target_dirent *target_dirp; 5953 struct linux_dirent *dirp; 5954 abi_long count = arg3; 5955 5956 dirp = malloc(count); 5957 if (!dirp) { 5958 ret = -TARGET_ENOMEM; 5959 goto fail; 5960 } 5961 5962 ret = get_errno(sys_getdents(arg1, dirp, count)); 5963 if (!is_error(ret)) { 5964 struct linux_dirent *de; 5965 struct target_dirent *tde; 5966 int len = ret; 5967 int reclen, treclen; 5968 int count1, tnamelen; 5969 5970 count1 = 0; 5971 de = dirp; 5972 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 5973 goto efault; 5974 tde = target_dirp; 5975 while (len > 0) { 5976 reclen = de->d_reclen; 5977 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 5978 tde->d_reclen = tswap16(treclen); 5979 tde->d_ino = tswapl(de->d_ino); 5980 tde->d_off = tswapl(de->d_off); 5981 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 5982 if (tnamelen > 256) 5983 tnamelen = 256; 5984 /* XXX: may not be correct */ 5985 pstrcpy(tde->d_name, tnamelen, de->d_name); 5986 de = (struct linux_dirent *)((char *)de + reclen); 5987 len -= reclen; 5988 tde = (struct target_dirent *)((char *)tde + treclen); 5989 count1 += treclen; 5990 } 5991 ret = count1; 5992 unlock_user(target_dirp, arg2, ret); 5993 } 5994 free(dirp); 5995 } 5996 #else 5997 { 5998 struct linux_dirent *dirp; 5999 abi_long count = arg3; 6000 6001 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 6002 goto efault; 6003 ret = get_errno(sys_getdents(arg1, dirp, count)); 6004 if (!is_error(ret)) { 6005 struct linux_dirent *de; 6006 int len = ret; 6007 int reclen; 6008 de = dirp; 6009 while (len > 0) { 6010 reclen = de->d_reclen; 6011 if (reclen > len) 6012 break; 6013 de->d_reclen = tswap16(reclen); 6014 tswapls(&de->d_ino); 6015 tswapls(&de->d_off); 6016 de = (struct linux_dirent *)((char *)de + reclen); 6017 len -= reclen; 6018 } 6019 } 6020 unlock_user(dirp, arg2, ret); 6021 } 6022 #endif 6023 break; 6024 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 6025 case TARGET_NR_getdents64: 6026 { 6027 struct linux_dirent64 *dirp; 6028 abi_long count = arg3; 6029 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 6030 goto efault; 6031 ret = get_errno(sys_getdents64(arg1, dirp, count)); 6032 if (!is_error(ret)) { 6033 struct linux_dirent64 *de; 6034 int len = ret; 6035 int reclen; 6036 de = dirp; 6037 while (len > 0) { 6038 reclen = de->d_reclen; 6039 if (reclen > len) 6040 break; 6041 de->d_reclen = tswap16(reclen); 6042 tswap64s((uint64_t *)&de->d_ino); 6043 tswap64s((uint64_t *)&de->d_off); 6044 de = (struct linux_dirent64 *)((char *)de + reclen); 6045 len -= reclen; 6046 } 6047 } 6048 unlock_user(dirp, arg2, ret); 6049 } 6050 break; 6051 #endif /* TARGET_NR_getdents64 */ 6052 #ifdef TARGET_NR__newselect 6053 case TARGET_NR__newselect: 6054 ret = do_select(arg1, arg2, arg3, arg4, arg5); 6055 break; 6056 #endif 6057 #ifdef TARGET_NR_poll 6058 case TARGET_NR_poll: 6059 { 6060 struct target_pollfd *target_pfd; 6061 unsigned int nfds = arg2; 6062 int timeout = arg3; 6063 struct pollfd *pfd; 6064 unsigned int i; 6065 6066 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); 6067 if (!target_pfd) 6068 goto efault; 6069 pfd = alloca(sizeof(struct pollfd) * nfds); 6070 for(i = 0; i < nfds; i++) { 6071 pfd[i].fd = tswap32(target_pfd[i].fd); 6072 pfd[i].events = tswap16(target_pfd[i].events); 6073 } 6074 ret = get_errno(poll(pfd, nfds, timeout)); 6075 if (!is_error(ret)) { 6076 for(i = 0; i < nfds; i++) { 6077 target_pfd[i].revents = tswap16(pfd[i].revents); 6078 } 6079 ret += nfds * (sizeof(struct target_pollfd) 6080 - sizeof(struct pollfd)); 6081 } 6082 unlock_user(target_pfd, arg1, ret); 6083 } 6084 break; 6085 #endif 6086 case TARGET_NR_flock: 6087 /* NOTE: the flock constant seems to be the same for every 6088 Linux platform */ 6089 ret = get_errno(flock(arg1, arg2)); 6090 break; 6091 case TARGET_NR_readv: 6092 { 6093 int count = arg3; 6094 struct iovec *vec; 6095 6096 vec = alloca(count * sizeof(struct iovec)); 6097 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0) 6098 goto efault; 6099 ret = get_errno(readv(arg1, vec, count)); 6100 unlock_iovec(vec, arg2, count, 1); 6101 } 6102 break; 6103 case TARGET_NR_writev: 6104 { 6105 int count = arg3; 6106 struct iovec *vec; 6107 6108 vec = alloca(count * sizeof(struct iovec)); 6109 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) 6110 goto efault; 6111 ret = get_errno(writev(arg1, vec, count)); 6112 unlock_iovec(vec, arg2, count, 0); 6113 } 6114 break; 6115 case TARGET_NR_getsid: 6116 ret = get_errno(getsid(arg1)); 6117 break; 6118 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 6119 case TARGET_NR_fdatasync: 6120 ret = get_errno(fdatasync(arg1)); 6121 break; 6122 #endif 6123 case TARGET_NR__sysctl: 6124 /* We don't implement this, but ENOTDIR is always a safe 6125 return value. */ 6126 ret = -TARGET_ENOTDIR; 6127 break; 6128 case TARGET_NR_sched_setparam: 6129 { 6130 struct sched_param *target_schp; 6131 struct sched_param schp; 6132 6133 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) 6134 goto efault; 6135 schp.sched_priority = tswap32(target_schp->sched_priority); 6136 unlock_user_struct(target_schp, arg2, 0); 6137 ret = get_errno(sched_setparam(arg1, &schp)); 6138 } 6139 break; 6140 case TARGET_NR_sched_getparam: 6141 { 6142 struct sched_param *target_schp; 6143 struct sched_param schp; 6144 ret = get_errno(sched_getparam(arg1, &schp)); 6145 if (!is_error(ret)) { 6146 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) 6147 goto efault; 6148 target_schp->sched_priority = tswap32(schp.sched_priority); 6149 unlock_user_struct(target_schp, arg2, 1); 6150 } 6151 } 6152 break; 6153 case TARGET_NR_sched_setscheduler: 6154 { 6155 struct sched_param *target_schp; 6156 struct sched_param schp; 6157 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) 6158 goto efault; 6159 schp.sched_priority = tswap32(target_schp->sched_priority); 6160 unlock_user_struct(target_schp, arg3, 0); 6161 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 6162 } 6163 break; 6164 case TARGET_NR_sched_getscheduler: 6165 ret = get_errno(sched_getscheduler(arg1)); 6166 break; 6167 case TARGET_NR_sched_yield: 6168 ret = get_errno(sched_yield()); 6169 break; 6170 case TARGET_NR_sched_get_priority_max: 6171 ret = get_errno(sched_get_priority_max(arg1)); 6172 break; 6173 case TARGET_NR_sched_get_priority_min: 6174 ret = get_errno(sched_get_priority_min(arg1)); 6175 break; 6176 case TARGET_NR_sched_rr_get_interval: 6177 { 6178 struct timespec ts; 6179 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 6180 if (!is_error(ret)) { 6181 host_to_target_timespec(arg2, &ts); 6182 } 6183 } 6184 break; 6185 case TARGET_NR_nanosleep: 6186 { 6187 struct timespec req, rem; 6188 target_to_host_timespec(&req, arg1); 6189 ret = get_errno(nanosleep(&req, &rem)); 6190 if (is_error(ret) && arg2) { 6191 host_to_target_timespec(arg2, &rem); 6192 } 6193 } 6194 break; 6195 #ifdef TARGET_NR_query_module 6196 case TARGET_NR_query_module: 6197 goto unimplemented; 6198 #endif 6199 #ifdef TARGET_NR_nfsservctl 6200 case TARGET_NR_nfsservctl: 6201 goto unimplemented; 6202 #endif 6203 case TARGET_NR_prctl: 6204 switch (arg1) 6205 { 6206 case PR_GET_PDEATHSIG: 6207 { 6208 int deathsig; 6209 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 6210 if (!is_error(ret) && arg2 6211 && put_user_ual(deathsig, arg2)) 6212 goto efault; 6213 } 6214 break; 6215 default: 6216 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 6217 break; 6218 } 6219 break; 6220 #ifdef TARGET_NR_arch_prctl 6221 case TARGET_NR_arch_prctl: 6222 #if defined(TARGET_I386) && !defined(TARGET_ABI32) 6223 ret = do_arch_prctl(cpu_env, arg1, arg2); 6224 break; 6225 #else 6226 goto unimplemented; 6227 #endif 6228 #endif 6229 #ifdef TARGET_NR_pread 6230 case TARGET_NR_pread: 6231 #ifdef TARGET_ARM 6232 if (((CPUARMState *)cpu_env)->eabi) 6233 arg4 = arg5; 6234 #endif 6235 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 6236 goto efault; 6237 ret = get_errno(pread(arg1, p, arg3, arg4)); 6238 unlock_user(p, arg2, ret); 6239 break; 6240 case TARGET_NR_pwrite: 6241 #ifdef TARGET_ARM 6242 if (((CPUARMState *)cpu_env)->eabi) 6243 arg4 = arg5; 6244 #endif 6245 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 6246 goto efault; 6247 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 6248 unlock_user(p, arg2, 0); 6249 break; 6250 #endif 6251 #ifdef TARGET_NR_pread64 6252 case TARGET_NR_pread64: 6253 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 6254 goto efault; 6255 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); 6256 unlock_user(p, arg2, ret); 6257 break; 6258 case TARGET_NR_pwrite64: 6259 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 6260 goto efault; 6261 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); 6262 unlock_user(p, arg2, 0); 6263 break; 6264 #endif 6265 case TARGET_NR_getcwd: 6266 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) 6267 goto efault; 6268 ret = get_errno(sys_getcwd1(p, arg2)); 6269 unlock_user(p, arg1, ret); 6270 break; 6271 case TARGET_NR_capget: 6272 goto unimplemented; 6273 case TARGET_NR_capset: 6274 goto unimplemented; 6275 case TARGET_NR_sigaltstack: 6276 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 6277 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \ 6278 defined(TARGET_M68K) 6279 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env)); 6280 break; 6281 #else 6282 goto unimplemented; 6283 #endif 6284 case TARGET_NR_sendfile: 6285 goto unimplemented; 6286 #ifdef TARGET_NR_getpmsg 6287 case TARGET_NR_getpmsg: 6288 goto unimplemented; 6289 #endif 6290 #ifdef TARGET_NR_putpmsg 6291 case TARGET_NR_putpmsg: 6292 goto unimplemented; 6293 #endif 6294 #ifdef TARGET_NR_vfork 6295 case TARGET_NR_vfork: 6296 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 6297 0, 0, 0, 0)); 6298 break; 6299 #endif 6300 #ifdef TARGET_NR_ugetrlimit 6301 case TARGET_NR_ugetrlimit: 6302 { 6303 struct rlimit rlim; 6304 ret = get_errno(getrlimit(arg1, &rlim)); 6305 if (!is_error(ret)) { 6306 struct target_rlimit *target_rlim; 6307 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 6308 goto efault; 6309 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); 6310 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); 6311 unlock_user_struct(target_rlim, arg2, 1); 6312 } 6313 break; 6314 } 6315 #endif 6316 #ifdef TARGET_NR_truncate64 6317 case TARGET_NR_truncate64: 6318 if (!(p = lock_user_string(arg1))) 6319 goto efault; 6320 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 6321 unlock_user(p, arg1, 0); 6322 break; 6323 #endif 6324 #ifdef TARGET_NR_ftruncate64 6325 case TARGET_NR_ftruncate64: 6326 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 6327 break; 6328 #endif 6329 #ifdef TARGET_NR_stat64 6330 case TARGET_NR_stat64: 6331 if (!(p = lock_user_string(arg1))) 6332 goto efault; 6333 ret = get_errno(stat(path(p), &st)); 6334 unlock_user(p, arg1, 0); 6335 if (!is_error(ret)) 6336 ret = host_to_target_stat64(cpu_env, arg2, &st); 6337 break; 6338 #endif 6339 #ifdef TARGET_NR_lstat64 6340 case TARGET_NR_lstat64: 6341 if (!(p = lock_user_string(arg1))) 6342 goto efault; 6343 ret = get_errno(lstat(path(p), &st)); 6344 unlock_user(p, arg1, 0); 6345 if (!is_error(ret)) 6346 ret = host_to_target_stat64(cpu_env, arg2, &st); 6347 break; 6348 #endif 6349 #ifdef TARGET_NR_fstat64 6350 case TARGET_NR_fstat64: 6351 ret = get_errno(fstat(arg1, &st)); 6352 if (!is_error(ret)) 6353 ret = host_to_target_stat64(cpu_env, arg2, &st); 6354 break; 6355 #endif 6356 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \ 6357 (defined(__NR_fstatat64) || defined(__NR_newfstatat)) 6358 #ifdef TARGET_NR_fstatat64 6359 case TARGET_NR_fstatat64: 6360 #endif 6361 #ifdef TARGET_NR_newfstatat 6362 case TARGET_NR_newfstatat: 6363 #endif 6364 if (!(p = lock_user_string(arg2))) 6365 goto efault; 6366 #ifdef __NR_fstatat64 6367 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4)); 6368 #else 6369 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4)); 6370 #endif 6371 if (!is_error(ret)) 6372 ret = host_to_target_stat64(cpu_env, arg3, &st); 6373 break; 6374 #endif 6375 #ifdef USE_UID16 6376 case TARGET_NR_lchown: 6377 if (!(p = lock_user_string(arg1))) 6378 goto efault; 6379 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 6380 unlock_user(p, arg1, 0); 6381 break; 6382 case TARGET_NR_getuid: 6383 ret = get_errno(high2lowuid(getuid())); 6384 break; 6385 case TARGET_NR_getgid: 6386 ret = get_errno(high2lowgid(getgid())); 6387 break; 6388 case TARGET_NR_geteuid: 6389 ret = get_errno(high2lowuid(geteuid())); 6390 break; 6391 case TARGET_NR_getegid: 6392 ret = get_errno(high2lowgid(getegid())); 6393 break; 6394 case TARGET_NR_setreuid: 6395 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 6396 break; 6397 case TARGET_NR_setregid: 6398 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 6399 break; 6400 case TARGET_NR_getgroups: 6401 { 6402 int gidsetsize = arg1; 6403 uint16_t *target_grouplist; 6404 gid_t *grouplist; 6405 int i; 6406 6407 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6408 ret = get_errno(getgroups(gidsetsize, grouplist)); 6409 if (gidsetsize == 0) 6410 break; 6411 if (!is_error(ret)) { 6412 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0); 6413 if (!target_grouplist) 6414 goto efault; 6415 for(i = 0;i < ret; i++) 6416 target_grouplist[i] = tswap16(grouplist[i]); 6417 unlock_user(target_grouplist, arg2, gidsetsize * 2); 6418 } 6419 } 6420 break; 6421 case TARGET_NR_setgroups: 6422 { 6423 int gidsetsize = arg1; 6424 uint16_t *target_grouplist; 6425 gid_t *grouplist; 6426 int i; 6427 6428 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6429 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1); 6430 if (!target_grouplist) { 6431 ret = -TARGET_EFAULT; 6432 goto fail; 6433 } 6434 for(i = 0;i < gidsetsize; i++) 6435 grouplist[i] = tswap16(target_grouplist[i]); 6436 unlock_user(target_grouplist, arg2, 0); 6437 ret = get_errno(setgroups(gidsetsize, grouplist)); 6438 } 6439 break; 6440 case TARGET_NR_fchown: 6441 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 6442 break; 6443 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 6444 case TARGET_NR_fchownat: 6445 if (!(p = lock_user_string(arg2))) 6446 goto efault; 6447 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 6448 unlock_user(p, arg2, 0); 6449 break; 6450 #endif 6451 #ifdef TARGET_NR_setresuid 6452 case TARGET_NR_setresuid: 6453 ret = get_errno(setresuid(low2highuid(arg1), 6454 low2highuid(arg2), 6455 low2highuid(arg3))); 6456 break; 6457 #endif 6458 #ifdef TARGET_NR_getresuid 6459 case TARGET_NR_getresuid: 6460 { 6461 uid_t ruid, euid, suid; 6462 ret = get_errno(getresuid(&ruid, &euid, &suid)); 6463 if (!is_error(ret)) { 6464 if (put_user_u16(high2lowuid(ruid), arg1) 6465 || put_user_u16(high2lowuid(euid), arg2) 6466 || put_user_u16(high2lowuid(suid), arg3)) 6467 goto efault; 6468 } 6469 } 6470 break; 6471 #endif 6472 #ifdef TARGET_NR_getresgid 6473 case TARGET_NR_setresgid: 6474 ret = get_errno(setresgid(low2highgid(arg1), 6475 low2highgid(arg2), 6476 low2highgid(arg3))); 6477 break; 6478 #endif 6479 #ifdef TARGET_NR_getresgid 6480 case TARGET_NR_getresgid: 6481 { 6482 gid_t rgid, egid, sgid; 6483 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 6484 if (!is_error(ret)) { 6485 if (put_user_u16(high2lowgid(rgid), arg1) 6486 || put_user_u16(high2lowgid(egid), arg2) 6487 || put_user_u16(high2lowgid(sgid), arg3)) 6488 goto efault; 6489 } 6490 } 6491 break; 6492 #endif 6493 case TARGET_NR_chown: 6494 if (!(p = lock_user_string(arg1))) 6495 goto efault; 6496 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 6497 unlock_user(p, arg1, 0); 6498 break; 6499 case TARGET_NR_setuid: 6500 ret = get_errno(setuid(low2highuid(arg1))); 6501 break; 6502 case TARGET_NR_setgid: 6503 ret = get_errno(setgid(low2highgid(arg1))); 6504 break; 6505 case TARGET_NR_setfsuid: 6506 ret = get_errno(setfsuid(arg1)); 6507 break; 6508 case TARGET_NR_setfsgid: 6509 ret = get_errno(setfsgid(arg1)); 6510 break; 6511 #endif /* USE_UID16 */ 6512 6513 #ifdef TARGET_NR_lchown32 6514 case TARGET_NR_lchown32: 6515 if (!(p = lock_user_string(arg1))) 6516 goto efault; 6517 ret = get_errno(lchown(p, arg2, arg3)); 6518 unlock_user(p, arg1, 0); 6519 break; 6520 #endif 6521 #ifdef TARGET_NR_getuid32 6522 case TARGET_NR_getuid32: 6523 ret = get_errno(getuid()); 6524 break; 6525 #endif 6526 6527 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA) 6528 /* Alpha specific */ 6529 case TARGET_NR_getxuid: 6530 { 6531 uid_t euid; 6532 euid=geteuid(); 6533 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; 6534 } 6535 ret = get_errno(getuid()); 6536 break; 6537 #endif 6538 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA) 6539 /* Alpha specific */ 6540 case TARGET_NR_getxgid: 6541 { 6542 uid_t egid; 6543 egid=getegid(); 6544 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; 6545 } 6546 ret = get_errno(getgid()); 6547 break; 6548 #endif 6549 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA) 6550 /* Alpha specific */ 6551 case TARGET_NR_osf_getsysinfo: 6552 ret = -TARGET_EOPNOTSUPP; 6553 switch (arg1) { 6554 case TARGET_GSI_IEEE_FP_CONTROL: 6555 { 6556 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env); 6557 6558 /* Copied from linux ieee_fpcr_to_swcr. */ 6559 swcr = (fpcr >> 35) & SWCR_STATUS_MASK; 6560 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ; 6561 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV 6562 | SWCR_TRAP_ENABLE_DZE 6563 | SWCR_TRAP_ENABLE_OVF); 6564 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF 6565 | SWCR_TRAP_ENABLE_INE); 6566 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ; 6567 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO; 6568 6569 if (put_user_u64 (swcr, arg2)) 6570 goto efault; 6571 ret = 0; 6572 } 6573 break; 6574 6575 /* case GSI_IEEE_STATE_AT_SIGNAL: 6576 -- Not implemented in linux kernel. 6577 case GSI_UACPROC: 6578 -- Retrieves current unaligned access state; not much used. 6579 case GSI_PROC_TYPE: 6580 -- Retrieves implver information; surely not used. 6581 case GSI_GET_HWRPB: 6582 -- Grabs a copy of the HWRPB; surely not used. 6583 */ 6584 } 6585 break; 6586 #endif 6587 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA) 6588 /* Alpha specific */ 6589 case TARGET_NR_osf_setsysinfo: 6590 ret = -TARGET_EOPNOTSUPP; 6591 switch (arg1) { 6592 case TARGET_SSI_IEEE_FP_CONTROL: 6593 case TARGET_SSI_IEEE_RAISE_EXCEPTION: 6594 { 6595 uint64_t swcr, fpcr, orig_fpcr; 6596 6597 if (get_user_u64 (swcr, arg2)) 6598 goto efault; 6599 orig_fpcr = cpu_alpha_load_fpcr (cpu_env); 6600 fpcr = orig_fpcr & FPCR_DYN_MASK; 6601 6602 /* Copied from linux ieee_swcr_to_fpcr. */ 6603 fpcr |= (swcr & SWCR_STATUS_MASK) << 35; 6604 fpcr |= (swcr & SWCR_MAP_DMZ) << 36; 6605 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV 6606 | SWCR_TRAP_ENABLE_DZE 6607 | SWCR_TRAP_ENABLE_OVF)) << 48; 6608 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF 6609 | SWCR_TRAP_ENABLE_INE)) << 57; 6610 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0); 6611 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41; 6612 6613 cpu_alpha_store_fpcr (cpu_env, fpcr); 6614 ret = 0; 6615 6616 if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) { 6617 /* Old exceptions are not signaled. */ 6618 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK); 6619 6620 /* If any exceptions set by this call, and are unmasked, 6621 send a signal. */ 6622 /* ??? FIXME */ 6623 } 6624 } 6625 break; 6626 6627 /* case SSI_NVPAIRS: 6628 -- Used with SSIN_UACPROC to enable unaligned accesses. 6629 case SSI_IEEE_STATE_AT_SIGNAL: 6630 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: 6631 -- Not implemented in linux kernel 6632 */ 6633 } 6634 break; 6635 #endif 6636 #ifdef TARGET_NR_osf_sigprocmask 6637 /* Alpha specific. */ 6638 case TARGET_NR_osf_sigprocmask: 6639 { 6640 abi_ulong mask; 6641 int how = arg1; 6642 sigset_t set, oldset; 6643 6644 switch(arg1) { 6645 case TARGET_SIG_BLOCK: 6646 how = SIG_BLOCK; 6647 break; 6648 case TARGET_SIG_UNBLOCK: 6649 how = SIG_UNBLOCK; 6650 break; 6651 case TARGET_SIG_SETMASK: 6652 how = SIG_SETMASK; 6653 break; 6654 default: 6655 ret = -TARGET_EINVAL; 6656 goto fail; 6657 } 6658 mask = arg2; 6659 target_to_host_old_sigset(&set, &mask); 6660 sigprocmask(arg1, &set, &oldset); 6661 host_to_target_old_sigset(&mask, &oldset); 6662 ret = mask; 6663 } 6664 break; 6665 #endif 6666 6667 #ifdef TARGET_NR_getgid32 6668 case TARGET_NR_getgid32: 6669 ret = get_errno(getgid()); 6670 break; 6671 #endif 6672 #ifdef TARGET_NR_geteuid32 6673 case TARGET_NR_geteuid32: 6674 ret = get_errno(geteuid()); 6675 break; 6676 #endif 6677 #ifdef TARGET_NR_getegid32 6678 case TARGET_NR_getegid32: 6679 ret = get_errno(getegid()); 6680 break; 6681 #endif 6682 #ifdef TARGET_NR_setreuid32 6683 case TARGET_NR_setreuid32: 6684 ret = get_errno(setreuid(arg1, arg2)); 6685 break; 6686 #endif 6687 #ifdef TARGET_NR_setregid32 6688 case TARGET_NR_setregid32: 6689 ret = get_errno(setregid(arg1, arg2)); 6690 break; 6691 #endif 6692 #ifdef TARGET_NR_getgroups32 6693 case TARGET_NR_getgroups32: 6694 { 6695 int gidsetsize = arg1; 6696 uint32_t *target_grouplist; 6697 gid_t *grouplist; 6698 int i; 6699 6700 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6701 ret = get_errno(getgroups(gidsetsize, grouplist)); 6702 if (gidsetsize == 0) 6703 break; 6704 if (!is_error(ret)) { 6705 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); 6706 if (!target_grouplist) { 6707 ret = -TARGET_EFAULT; 6708 goto fail; 6709 } 6710 for(i = 0;i < ret; i++) 6711 target_grouplist[i] = tswap32(grouplist[i]); 6712 unlock_user(target_grouplist, arg2, gidsetsize * 4); 6713 } 6714 } 6715 break; 6716 #endif 6717 #ifdef TARGET_NR_setgroups32 6718 case TARGET_NR_setgroups32: 6719 { 6720 int gidsetsize = arg1; 6721 uint32_t *target_grouplist; 6722 gid_t *grouplist; 6723 int i; 6724 6725 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6726 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); 6727 if (!target_grouplist) { 6728 ret = -TARGET_EFAULT; 6729 goto fail; 6730 } 6731 for(i = 0;i < gidsetsize; i++) 6732 grouplist[i] = tswap32(target_grouplist[i]); 6733 unlock_user(target_grouplist, arg2, 0); 6734 ret = get_errno(setgroups(gidsetsize, grouplist)); 6735 } 6736 break; 6737 #endif 6738 #ifdef TARGET_NR_fchown32 6739 case TARGET_NR_fchown32: 6740 ret = get_errno(fchown(arg1, arg2, arg3)); 6741 break; 6742 #endif 6743 #ifdef TARGET_NR_setresuid32 6744 case TARGET_NR_setresuid32: 6745 ret = get_errno(setresuid(arg1, arg2, arg3)); 6746 break; 6747 #endif 6748 #ifdef TARGET_NR_getresuid32 6749 case TARGET_NR_getresuid32: 6750 { 6751 uid_t ruid, euid, suid; 6752 ret = get_errno(getresuid(&ruid, &euid, &suid)); 6753 if (!is_error(ret)) { 6754 if (put_user_u32(ruid, arg1) 6755 || put_user_u32(euid, arg2) 6756 || put_user_u32(suid, arg3)) 6757 goto efault; 6758 } 6759 } 6760 break; 6761 #endif 6762 #ifdef TARGET_NR_setresgid32 6763 case TARGET_NR_setresgid32: 6764 ret = get_errno(setresgid(arg1, arg2, arg3)); 6765 break; 6766 #endif 6767 #ifdef TARGET_NR_getresgid32 6768 case TARGET_NR_getresgid32: 6769 { 6770 gid_t rgid, egid, sgid; 6771 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 6772 if (!is_error(ret)) { 6773 if (put_user_u32(rgid, arg1) 6774 || put_user_u32(egid, arg2) 6775 || put_user_u32(sgid, arg3)) 6776 goto efault; 6777 } 6778 } 6779 break; 6780 #endif 6781 #ifdef TARGET_NR_chown32 6782 case TARGET_NR_chown32: 6783 if (!(p = lock_user_string(arg1))) 6784 goto efault; 6785 ret = get_errno(chown(p, arg2, arg3)); 6786 unlock_user(p, arg1, 0); 6787 break; 6788 #endif 6789 #ifdef TARGET_NR_setuid32 6790 case TARGET_NR_setuid32: 6791 ret = get_errno(setuid(arg1)); 6792 break; 6793 #endif 6794 #ifdef TARGET_NR_setgid32 6795 case TARGET_NR_setgid32: 6796 ret = get_errno(setgid(arg1)); 6797 break; 6798 #endif 6799 #ifdef TARGET_NR_setfsuid32 6800 case TARGET_NR_setfsuid32: 6801 ret = get_errno(setfsuid(arg1)); 6802 break; 6803 #endif 6804 #ifdef TARGET_NR_setfsgid32 6805 case TARGET_NR_setfsgid32: 6806 ret = get_errno(setfsgid(arg1)); 6807 break; 6808 #endif 6809 6810 case TARGET_NR_pivot_root: 6811 goto unimplemented; 6812 #ifdef TARGET_NR_mincore 6813 case TARGET_NR_mincore: 6814 { 6815 void *a; 6816 ret = -TARGET_EFAULT; 6817 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0))) 6818 goto efault; 6819 if (!(p = lock_user_string(arg3))) 6820 goto mincore_fail; 6821 ret = get_errno(mincore(a, arg2, p)); 6822 unlock_user(p, arg3, ret); 6823 mincore_fail: 6824 unlock_user(a, arg1, 0); 6825 } 6826 break; 6827 #endif 6828 #ifdef TARGET_NR_arm_fadvise64_64 6829 case TARGET_NR_arm_fadvise64_64: 6830 { 6831 /* 6832 * arm_fadvise64_64 looks like fadvise64_64 but 6833 * with different argument order 6834 */ 6835 abi_long temp; 6836 temp = arg3; 6837 arg3 = arg4; 6838 arg4 = temp; 6839 } 6840 #endif 6841 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64) 6842 #ifdef TARGET_NR_fadvise64_64 6843 case TARGET_NR_fadvise64_64: 6844 #endif 6845 #ifdef TARGET_NR_fadvise64 6846 case TARGET_NR_fadvise64: 6847 #endif 6848 #ifdef TARGET_S390X 6849 switch (arg4) { 6850 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */ 6851 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */ 6852 case 6: arg4 = POSIX_FADV_DONTNEED; break; 6853 case 7: arg4 = POSIX_FADV_NOREUSE; break; 6854 default: break; 6855 } 6856 #endif 6857 ret = -posix_fadvise(arg1, arg2, arg3, arg4); 6858 break; 6859 #endif 6860 #ifdef TARGET_NR_madvise 6861 case TARGET_NR_madvise: 6862 /* A straight passthrough may not be safe because qemu sometimes 6863 turns private flie-backed mappings into anonymous mappings. 6864 This will break MADV_DONTNEED. 6865 This is a hint, so ignoring and returning success is ok. */ 6866 ret = get_errno(0); 6867 break; 6868 #endif 6869 #if TARGET_ABI_BITS == 32 6870 case TARGET_NR_fcntl64: 6871 { 6872 int cmd; 6873 struct flock64 fl; 6874 struct target_flock64 *target_fl; 6875 #ifdef TARGET_ARM 6876 struct target_eabi_flock64 *target_efl; 6877 #endif 6878 6879 cmd = target_to_host_fcntl_cmd(arg2); 6880 if (cmd == -TARGET_EINVAL) 6881 return cmd; 6882 6883 switch(arg2) { 6884 case TARGET_F_GETLK64: 6885 #ifdef TARGET_ARM 6886 if (((CPUARMState *)cpu_env)->eabi) { 6887 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 6888 goto efault; 6889 fl.l_type = tswap16(target_efl->l_type); 6890 fl.l_whence = tswap16(target_efl->l_whence); 6891 fl.l_start = tswap64(target_efl->l_start); 6892 fl.l_len = tswap64(target_efl->l_len); 6893 fl.l_pid = tswap32(target_efl->l_pid); 6894 unlock_user_struct(target_efl, arg3, 0); 6895 } else 6896 #endif 6897 { 6898 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 6899 goto efault; 6900 fl.l_type = tswap16(target_fl->l_type); 6901 fl.l_whence = tswap16(target_fl->l_whence); 6902 fl.l_start = tswap64(target_fl->l_start); 6903 fl.l_len = tswap64(target_fl->l_len); 6904 fl.l_pid = tswap32(target_fl->l_pid); 6905 unlock_user_struct(target_fl, arg3, 0); 6906 } 6907 ret = get_errno(fcntl(arg1, cmd, &fl)); 6908 if (ret == 0) { 6909 #ifdef TARGET_ARM 6910 if (((CPUARMState *)cpu_env)->eabi) { 6911 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 6912 goto efault; 6913 target_efl->l_type = tswap16(fl.l_type); 6914 target_efl->l_whence = tswap16(fl.l_whence); 6915 target_efl->l_start = tswap64(fl.l_start); 6916 target_efl->l_len = tswap64(fl.l_len); 6917 target_efl->l_pid = tswap32(fl.l_pid); 6918 unlock_user_struct(target_efl, arg3, 1); 6919 } else 6920 #endif 6921 { 6922 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 6923 goto efault; 6924 target_fl->l_type = tswap16(fl.l_type); 6925 target_fl->l_whence = tswap16(fl.l_whence); 6926 target_fl->l_start = tswap64(fl.l_start); 6927 target_fl->l_len = tswap64(fl.l_len); 6928 target_fl->l_pid = tswap32(fl.l_pid); 6929 unlock_user_struct(target_fl, arg3, 1); 6930 } 6931 } 6932 break; 6933 6934 case TARGET_F_SETLK64: 6935 case TARGET_F_SETLKW64: 6936 #ifdef TARGET_ARM 6937 if (((CPUARMState *)cpu_env)->eabi) { 6938 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 6939 goto efault; 6940 fl.l_type = tswap16(target_efl->l_type); 6941 fl.l_whence = tswap16(target_efl->l_whence); 6942 fl.l_start = tswap64(target_efl->l_start); 6943 fl.l_len = tswap64(target_efl->l_len); 6944 fl.l_pid = tswap32(target_efl->l_pid); 6945 unlock_user_struct(target_efl, arg3, 0); 6946 } else 6947 #endif 6948 { 6949 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 6950 goto efault; 6951 fl.l_type = tswap16(target_fl->l_type); 6952 fl.l_whence = tswap16(target_fl->l_whence); 6953 fl.l_start = tswap64(target_fl->l_start); 6954 fl.l_len = tswap64(target_fl->l_len); 6955 fl.l_pid = tswap32(target_fl->l_pid); 6956 unlock_user_struct(target_fl, arg3, 0); 6957 } 6958 ret = get_errno(fcntl(arg1, cmd, &fl)); 6959 break; 6960 default: 6961 ret = do_fcntl(arg1, arg2, arg3); 6962 break; 6963 } 6964 break; 6965 } 6966 #endif 6967 #ifdef TARGET_NR_cacheflush 6968 case TARGET_NR_cacheflush: 6969 /* self-modifying code is handled automatically, so nothing needed */ 6970 ret = 0; 6971 break; 6972 #endif 6973 #ifdef TARGET_NR_security 6974 case TARGET_NR_security: 6975 goto unimplemented; 6976 #endif 6977 #ifdef TARGET_NR_getpagesize 6978 case TARGET_NR_getpagesize: 6979 ret = TARGET_PAGE_SIZE; 6980 break; 6981 #endif 6982 case TARGET_NR_gettid: 6983 ret = get_errno(gettid()); 6984 break; 6985 #ifdef TARGET_NR_readahead 6986 case TARGET_NR_readahead: 6987 #if TARGET_ABI_BITS == 32 6988 #ifdef TARGET_ARM 6989 if (((CPUARMState *)cpu_env)->eabi) 6990 { 6991 arg2 = arg3; 6992 arg3 = arg4; 6993 arg4 = arg5; 6994 } 6995 #endif 6996 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4)); 6997 #else 6998 ret = get_errno(readahead(arg1, arg2, arg3)); 6999 #endif 7000 break; 7001 #endif 7002 #ifdef TARGET_NR_setxattr 7003 case TARGET_NR_setxattr: 7004 case TARGET_NR_lsetxattr: 7005 case TARGET_NR_fsetxattr: 7006 case TARGET_NR_getxattr: 7007 case TARGET_NR_lgetxattr: 7008 case TARGET_NR_fgetxattr: 7009 case TARGET_NR_listxattr: 7010 case TARGET_NR_llistxattr: 7011 case TARGET_NR_flistxattr: 7012 case TARGET_NR_removexattr: 7013 case TARGET_NR_lremovexattr: 7014 case TARGET_NR_fremovexattr: 7015 ret = -TARGET_EOPNOTSUPP; 7016 break; 7017 #endif 7018 #ifdef TARGET_NR_set_thread_area 7019 case TARGET_NR_set_thread_area: 7020 #if defined(TARGET_MIPS) 7021 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 7022 ret = 0; 7023 break; 7024 #elif defined(TARGET_CRIS) 7025 if (arg1 & 0xff) 7026 ret = -TARGET_EINVAL; 7027 else { 7028 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1; 7029 ret = 0; 7030 } 7031 break; 7032 #elif defined(TARGET_I386) && defined(TARGET_ABI32) 7033 ret = do_set_thread_area(cpu_env, arg1); 7034 break; 7035 #else 7036 goto unimplemented_nowarn; 7037 #endif 7038 #endif 7039 #ifdef TARGET_NR_get_thread_area 7040 case TARGET_NR_get_thread_area: 7041 #if defined(TARGET_I386) && defined(TARGET_ABI32) 7042 ret = do_get_thread_area(cpu_env, arg1); 7043 #else 7044 goto unimplemented_nowarn; 7045 #endif 7046 #endif 7047 #ifdef TARGET_NR_getdomainname 7048 case TARGET_NR_getdomainname: 7049 goto unimplemented_nowarn; 7050 #endif 7051 7052 #ifdef TARGET_NR_clock_gettime 7053 case TARGET_NR_clock_gettime: 7054 { 7055 struct timespec ts; 7056 ret = get_errno(clock_gettime(arg1, &ts)); 7057 if (!is_error(ret)) { 7058 host_to_target_timespec(arg2, &ts); 7059 } 7060 break; 7061 } 7062 #endif 7063 #ifdef TARGET_NR_clock_getres 7064 case TARGET_NR_clock_getres: 7065 { 7066 struct timespec ts; 7067 ret = get_errno(clock_getres(arg1, &ts)); 7068 if (!is_error(ret)) { 7069 host_to_target_timespec(arg2, &ts); 7070 } 7071 break; 7072 } 7073 #endif 7074 #ifdef TARGET_NR_clock_nanosleep 7075 case TARGET_NR_clock_nanosleep: 7076 { 7077 struct timespec ts; 7078 target_to_host_timespec(&ts, arg3); 7079 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL)); 7080 if (arg4) 7081 host_to_target_timespec(arg4, &ts); 7082 break; 7083 } 7084 #endif 7085 7086 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 7087 case TARGET_NR_set_tid_address: 7088 ret = get_errno(set_tid_address((int *)g2h(arg1))); 7089 break; 7090 #endif 7091 7092 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 7093 case TARGET_NR_tkill: 7094 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2))); 7095 break; 7096 #endif 7097 7098 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 7099 case TARGET_NR_tgkill: 7100 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, 7101 target_to_host_signal(arg3))); 7102 break; 7103 #endif 7104 7105 #ifdef TARGET_NR_set_robust_list 7106 case TARGET_NR_set_robust_list: 7107 goto unimplemented_nowarn; 7108 #endif 7109 7110 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 7111 case TARGET_NR_utimensat: 7112 { 7113 struct timespec *tsp, ts[2]; 7114 if (!arg3) { 7115 tsp = NULL; 7116 } else { 7117 target_to_host_timespec(ts, arg3); 7118 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 7119 tsp = ts; 7120 } 7121 if (!arg2) 7122 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4)); 7123 else { 7124 if (!(p = lock_user_string(arg2))) { 7125 ret = -TARGET_EFAULT; 7126 goto fail; 7127 } 7128 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); 7129 unlock_user(p, arg2, 0); 7130 } 7131 } 7132 break; 7133 #endif 7134 #if defined(CONFIG_USE_NPTL) 7135 case TARGET_NR_futex: 7136 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6); 7137 break; 7138 #endif 7139 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) 7140 case TARGET_NR_inotify_init: 7141 ret = get_errno(sys_inotify_init()); 7142 break; 7143 #endif 7144 #ifdef CONFIG_INOTIFY1 7145 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) 7146 case TARGET_NR_inotify_init1: 7147 ret = get_errno(sys_inotify_init1(arg1)); 7148 break; 7149 #endif 7150 #endif 7151 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) 7152 case TARGET_NR_inotify_add_watch: 7153 p = lock_user_string(arg2); 7154 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3)); 7155 unlock_user(p, arg2, 0); 7156 break; 7157 #endif 7158 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) 7159 case TARGET_NR_inotify_rm_watch: 7160 ret = get_errno(sys_inotify_rm_watch(arg1, arg2)); 7161 break; 7162 #endif 7163 7164 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) 7165 case TARGET_NR_mq_open: 7166 { 7167 struct mq_attr posix_mq_attr; 7168 7169 p = lock_user_string(arg1 - 1); 7170 if (arg4 != 0) 7171 copy_from_user_mq_attr (&posix_mq_attr, arg4); 7172 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr)); 7173 unlock_user (p, arg1, 0); 7174 } 7175 break; 7176 7177 case TARGET_NR_mq_unlink: 7178 p = lock_user_string(arg1 - 1); 7179 ret = get_errno(mq_unlink(p)); 7180 unlock_user (p, arg1, 0); 7181 break; 7182 7183 case TARGET_NR_mq_timedsend: 7184 { 7185 struct timespec ts; 7186 7187 p = lock_user (VERIFY_READ, arg2, arg3, 1); 7188 if (arg5 != 0) { 7189 target_to_host_timespec(&ts, arg5); 7190 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts)); 7191 host_to_target_timespec(arg5, &ts); 7192 } 7193 else 7194 ret = get_errno(mq_send(arg1, p, arg3, arg4)); 7195 unlock_user (p, arg2, arg3); 7196 } 7197 break; 7198 7199 case TARGET_NR_mq_timedreceive: 7200 { 7201 struct timespec ts; 7202 unsigned int prio; 7203 7204 p = lock_user (VERIFY_READ, arg2, arg3, 1); 7205 if (arg5 != 0) { 7206 target_to_host_timespec(&ts, arg5); 7207 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts)); 7208 host_to_target_timespec(arg5, &ts); 7209 } 7210 else 7211 ret = get_errno(mq_receive(arg1, p, arg3, &prio)); 7212 unlock_user (p, arg2, arg3); 7213 if (arg4 != 0) 7214 put_user_u32(prio, arg4); 7215 } 7216 break; 7217 7218 /* Not implemented for now... */ 7219 /* case TARGET_NR_mq_notify: */ 7220 /* break; */ 7221 7222 case TARGET_NR_mq_getsetattr: 7223 { 7224 struct mq_attr posix_mq_attr_in, posix_mq_attr_out; 7225 ret = 0; 7226 if (arg3 != 0) { 7227 ret = mq_getattr(arg1, &posix_mq_attr_out); 7228 copy_to_user_mq_attr(arg3, &posix_mq_attr_out); 7229 } 7230 if (arg2 != 0) { 7231 copy_from_user_mq_attr(&posix_mq_attr_in, arg2); 7232 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out); 7233 } 7234 7235 } 7236 break; 7237 #endif 7238 7239 #ifdef CONFIG_SPLICE 7240 #ifdef TARGET_NR_tee 7241 case TARGET_NR_tee: 7242 { 7243 ret = get_errno(tee(arg1,arg2,arg3,arg4)); 7244 } 7245 break; 7246 #endif 7247 #ifdef TARGET_NR_splice 7248 case TARGET_NR_splice: 7249 { 7250 loff_t loff_in, loff_out; 7251 loff_t *ploff_in = NULL, *ploff_out = NULL; 7252 if(arg2) { 7253 get_user_u64(loff_in, arg2); 7254 ploff_in = &loff_in; 7255 } 7256 if(arg4) { 7257 get_user_u64(loff_out, arg2); 7258 ploff_out = &loff_out; 7259 } 7260 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); 7261 } 7262 break; 7263 #endif 7264 #ifdef TARGET_NR_vmsplice 7265 case TARGET_NR_vmsplice: 7266 { 7267 int count = arg3; 7268 struct iovec *vec; 7269 7270 vec = alloca(count * sizeof(struct iovec)); 7271 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) 7272 goto efault; 7273 ret = get_errno(vmsplice(arg1, vec, count, arg4)); 7274 unlock_iovec(vec, arg2, count, 0); 7275 } 7276 break; 7277 #endif 7278 #endif /* CONFIG_SPLICE */ 7279 #ifdef CONFIG_EVENTFD 7280 #if defined(TARGET_NR_eventfd) 7281 case TARGET_NR_eventfd: 7282 ret = get_errno(eventfd(arg1, 0)); 7283 break; 7284 #endif 7285 #if defined(TARGET_NR_eventfd2) 7286 case TARGET_NR_eventfd2: 7287 ret = get_errno(eventfd(arg1, arg2)); 7288 break; 7289 #endif 7290 #endif /* CONFIG_EVENTFD */ 7291 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) 7292 case TARGET_NR_fallocate: 7293 ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); 7294 break; 7295 #endif 7296 default: 7297 unimplemented: 7298 gemu_log("qemu: Unsupported syscall: %d\n", num); 7299 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 7300 unimplemented_nowarn: 7301 #endif 7302 ret = -TARGET_ENOSYS; 7303 break; 7304 } 7305 fail: 7306 #ifdef DEBUG 7307 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret); 7308 #endif 7309 if(do_strace) 7310 print_syscall_ret(num, ret); 7311 return ret; 7312 efault: 7313 ret = -TARGET_EFAULT; 7314 goto fail; 7315 } 7316