1 /*- 2 * Copyright (c) 1994-1996 Søren Schmidt 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _I386_LINUX_H_ 32 #define _I386_LINUX_H_ 33 34 #include <sys/signal.h> /* for sigval union */ 35 36 #include <i386/linux/linux_syscall.h> 37 38 /* 39 * debugging support 40 */ 41 extern u_char linux_debug_map[]; 42 #define ldebug(name) isclr(linux_debug_map, LINUX_SYS_linux_ ## name) 43 #define ARGS(nm, fmt) "linux(%ld/%ld): "#nm"("fmt")\n", \ 44 (long)td->td_proc->p_pid, (long)td->td_tid 45 #define LMSG(fmt) "linux(%ld/%ld): "fmt"\n", \ 46 (long)td->td_proc->p_pid, (long)td->td_tid 47 #define LINUX_DTRACE linuxulator 48 49 #define LINUX_SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) 50 #define LINUX_USRSTACK LINUX_SHAREDPAGE 51 52 #define PTRIN(v) (void *)(v) 53 #define PTROUT(v) (l_uintptr_t)(v) 54 55 #define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0) 56 #define CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0) 57 #define PTRIN_CP(src,dst,fld) \ 58 do { (dst).fld = PTRIN((src).fld); } while (0) 59 60 /* 61 * Provide a separate set of types for the Linux types. 62 */ 63 typedef int l_int; 64 typedef int32_t l_long; 65 typedef int64_t l_longlong; 66 typedef short l_short; 67 typedef unsigned int l_uint; 68 typedef uint32_t l_ulong; 69 typedef uint64_t l_ulonglong; 70 typedef unsigned short l_ushort; 71 72 typedef char *l_caddr_t; 73 typedef l_ulong l_uintptr_t; 74 typedef l_long l_clock_t; 75 typedef l_int l_daddr_t; 76 typedef l_ushort l_dev_t; 77 typedef l_uint l_gid_t; 78 typedef l_ushort l_gid16_t; 79 typedef l_ulong l_ino_t; 80 typedef l_int l_key_t; 81 typedef l_longlong l_loff_t; 82 typedef l_ushort l_mode_t; 83 typedef l_long l_off_t; 84 typedef l_int l_pid_t; 85 typedef l_uint l_size_t; 86 typedef l_long l_suseconds_t; 87 typedef l_long l_time_t; 88 typedef l_uint l_uid_t; 89 typedef l_ushort l_uid16_t; 90 typedef l_int l_timer_t; 91 typedef l_int l_mqd_t; 92 typedef l_ulong l_fd_mask; 93 94 typedef struct { 95 l_int val[2]; 96 } l_fsid_t; 97 98 typedef struct { 99 l_time_t tv_sec; 100 l_suseconds_t tv_usec; 101 } l_timeval; 102 103 #define l_fd_set fd_set 104 105 /* 106 * Miscellaneous 107 */ 108 #define LINUX_AT_COUNT 20 /* Count of used aux entry types. 109 * Keep this synchronized with 110 * elf_linux_fixup() code. 111 */ 112 struct l___sysctl_args 113 { 114 l_int *name; 115 l_int nlen; 116 void *oldval; 117 l_size_t *oldlenp; 118 void *newval; 119 l_size_t newlen; 120 l_ulong __spare[4]; 121 }; 122 123 /* Resource limits */ 124 #define LINUX_RLIMIT_CPU 0 125 #define LINUX_RLIMIT_FSIZE 1 126 #define LINUX_RLIMIT_DATA 2 127 #define LINUX_RLIMIT_STACK 3 128 #define LINUX_RLIMIT_CORE 4 129 #define LINUX_RLIMIT_RSS 5 130 #define LINUX_RLIMIT_NPROC 6 131 #define LINUX_RLIMIT_NOFILE 7 132 #define LINUX_RLIMIT_MEMLOCK 8 133 #define LINUX_RLIMIT_AS 9 /* Address space limit */ 134 135 #define LINUX_RLIM_NLIMITS 10 136 137 struct l_rlimit { 138 l_ulong rlim_cur; 139 l_ulong rlim_max; 140 }; 141 142 /* mmap options */ 143 #define LINUX_MAP_SHARED 0x0001 144 #define LINUX_MAP_PRIVATE 0x0002 145 #define LINUX_MAP_FIXED 0x0010 146 #define LINUX_MAP_ANON 0x0020 147 #define LINUX_MAP_GROWSDOWN 0x0100 148 149 struct l_mmap_argv { 150 l_uintptr_t addr; 151 l_size_t len; 152 l_int prot; 153 l_int flags; 154 l_int fd; 155 l_off_t pgoff; 156 } __packed; 157 158 /* 159 * stat family of syscalls 160 */ 161 struct l_timespec { 162 l_time_t tv_sec; 163 l_long tv_nsec; 164 }; 165 166 struct l_newstat { 167 l_ushort st_dev; 168 l_ushort __pad1; 169 l_ulong st_ino; 170 l_ushort st_mode; 171 l_ushort st_nlink; 172 l_ushort st_uid; 173 l_ushort st_gid; 174 l_ushort st_rdev; 175 l_ushort __pad2; 176 l_ulong st_size; 177 l_ulong st_blksize; 178 l_ulong st_blocks; 179 struct l_timespec st_atim; 180 struct l_timespec st_mtim; 181 struct l_timespec st_ctim; 182 l_ulong __unused4; 183 l_ulong __unused5; 184 }; 185 186 struct l_stat { 187 l_ushort st_dev; 188 l_ulong st_ino; 189 l_ushort st_mode; 190 l_ushort st_nlink; 191 l_ushort st_uid; 192 l_ushort st_gid; 193 l_ushort st_rdev; 194 l_long st_size; 195 struct l_timespec st_atim; 196 struct l_timespec st_mtim; 197 struct l_timespec st_ctim; 198 l_long st_blksize; 199 l_long st_blocks; 200 l_ulong st_flags; 201 l_ulong st_gen; 202 }; 203 204 struct l_stat64 { 205 l_ushort st_dev; 206 u_char __pad0[10]; 207 l_ulong __st_ino; 208 l_uint st_mode; 209 l_uint st_nlink; 210 l_ulong st_uid; 211 l_ulong st_gid; 212 l_ushort st_rdev; 213 u_char __pad3[10]; 214 l_longlong st_size; 215 l_ulong st_blksize; 216 l_ulong st_blocks; 217 l_ulong __pad4; 218 struct l_timespec st_atim; 219 struct l_timespec st_mtim; 220 struct l_timespec st_ctim; 221 l_ulonglong st_ino; 222 }; 223 224 struct l_statfs64 { 225 l_int f_type; 226 l_int f_bsize; 227 uint64_t f_blocks; 228 uint64_t f_bfree; 229 uint64_t f_bavail; 230 uint64_t f_files; 231 uint64_t f_ffree; 232 l_fsid_t f_fsid; 233 l_int f_namelen; 234 l_int f_spare[6]; 235 }; 236 237 /* 238 * Signalling 239 */ 240 #define LINUX_SIGHUP 1 241 #define LINUX_SIGINT 2 242 #define LINUX_SIGQUIT 3 243 #define LINUX_SIGILL 4 244 #define LINUX_SIGTRAP 5 245 #define LINUX_SIGABRT 6 246 #define LINUX_SIGIOT LINUX_SIGABRT 247 #define LINUX_SIGBUS 7 248 #define LINUX_SIGFPE 8 249 #define LINUX_SIGKILL 9 250 #define LINUX_SIGUSR1 10 251 #define LINUX_SIGSEGV 11 252 #define LINUX_SIGUSR2 12 253 #define LINUX_SIGPIPE 13 254 #define LINUX_SIGALRM 14 255 #define LINUX_SIGTERM 15 256 #define LINUX_SIGSTKFLT 16 257 #define LINUX_SIGCHLD 17 258 #define LINUX_SIGCONT 18 259 #define LINUX_SIGSTOP 19 260 #define LINUX_SIGTSTP 20 261 #define LINUX_SIGTTIN 21 262 #define LINUX_SIGTTOU 22 263 #define LINUX_SIGURG 23 264 #define LINUX_SIGXCPU 24 265 #define LINUX_SIGXFSZ 25 266 #define LINUX_SIGVTALRM 26 267 #define LINUX_SIGPROF 27 268 #define LINUX_SIGWINCH 28 269 #define LINUX_SIGIO 29 270 #define LINUX_SIGPOLL LINUX_SIGIO 271 #define LINUX_SIGPWR 30 272 #define LINUX_SIGSYS 31 273 #define LINUX_SIGRTMIN 32 274 275 #define LINUX_SIGTBLSZ 31 276 #define LINUX_NSIG_WORDS 2 277 #define LINUX_NBPW 32 278 #define LINUX_NSIG (LINUX_NBPW * LINUX_NSIG_WORDS) 279 280 /* sigaction flags */ 281 #define LINUX_SA_NOCLDSTOP 0x00000001 282 #define LINUX_SA_NOCLDWAIT 0x00000002 283 #define LINUX_SA_SIGINFO 0x00000004 284 #define LINUX_SA_RESTORER 0x04000000 285 #define LINUX_SA_ONSTACK 0x08000000 286 #define LINUX_SA_RESTART 0x10000000 287 #define LINUX_SA_INTERRUPT 0x20000000 288 #define LINUX_SA_NOMASK 0x40000000 289 #define LINUX_SA_ONESHOT 0x80000000 290 291 /* sigprocmask actions */ 292 #define LINUX_SIG_BLOCK 0 293 #define LINUX_SIG_UNBLOCK 1 294 #define LINUX_SIG_SETMASK 2 295 296 /* sigset_t macros */ 297 #define LINUX_SIGEMPTYSET(set) (set).__bits[0] = (set).__bits[1] = 0 298 #define LINUX_SIGISMEMBER(set, sig) SIGISMEMBER(set, sig) 299 #define LINUX_SIGADDSET(set, sig) SIGADDSET(set, sig) 300 301 /* sigaltstack */ 302 #define LINUX_MINSIGSTKSZ 2048 303 #define LINUX_SS_ONSTACK 1 304 #define LINUX_SS_DISABLE 2 305 306 int linux_to_bsd_sigaltstack(int lsa); 307 int bsd_to_linux_sigaltstack(int bsa); 308 309 typedef void (*l_handler_t)(l_int); 310 typedef l_ulong l_osigset_t; 311 312 typedef struct { 313 l_uint __bits[LINUX_NSIG_WORDS]; 314 } l_sigset_t; 315 316 typedef struct { 317 l_handler_t lsa_handler; 318 l_osigset_t lsa_mask; 319 l_ulong lsa_flags; 320 void (*lsa_restorer)(void); 321 } l_osigaction_t; 322 323 typedef struct { 324 l_handler_t lsa_handler; 325 l_ulong lsa_flags; 326 void (*lsa_restorer)(void); 327 l_sigset_t lsa_mask; 328 } l_sigaction_t; 329 330 typedef struct { 331 void *ss_sp; 332 l_int ss_flags; 333 l_size_t ss_size; 334 } l_stack_t; 335 336 /* The Linux sigcontext, pretty much a standard 386 trapframe. */ 337 struct l_sigcontext { 338 l_int sc_gs; 339 l_int sc_fs; 340 l_int sc_es; 341 l_int sc_ds; 342 l_int sc_edi; 343 l_int sc_esi; 344 l_int sc_ebp; 345 l_int sc_esp; 346 l_int sc_ebx; 347 l_int sc_edx; 348 l_int sc_ecx; 349 l_int sc_eax; 350 l_int sc_trapno; 351 l_int sc_err; 352 l_int sc_eip; 353 l_int sc_cs; 354 l_int sc_eflags; 355 l_int sc_esp_at_signal; 356 l_int sc_ss; 357 l_int sc_387; 358 l_int sc_mask; 359 l_int sc_cr2; 360 }; 361 362 struct l_ucontext { 363 l_ulong uc_flags; 364 void *uc_link; 365 l_stack_t uc_stack; 366 struct l_sigcontext uc_mcontext; 367 l_sigset_t uc_sigmask; 368 }; 369 370 #define LINUX_SI_MAX_SIZE 128 371 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 372 373 typedef union l_sigval { 374 l_int sival_int; 375 l_uintptr_t sival_ptr; 376 } l_sigval_t; 377 378 typedef struct l_siginfo { 379 l_int lsi_signo; 380 l_int lsi_errno; 381 l_int lsi_code; 382 union { 383 l_int _pad[LINUX_SI_PAD_SIZE]; 384 385 struct { 386 l_pid_t _pid; 387 l_uid_t _uid; 388 } _kill; 389 390 struct { 391 l_timer_t _tid; 392 l_int _overrun; 393 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 394 l_sigval_t _sigval; 395 l_int _sys_private; 396 } _timer; 397 398 struct { 399 l_pid_t _pid; /* sender's pid */ 400 l_uid_t _uid; /* sender's uid */ 401 l_sigval_t _sigval; 402 } _rt; 403 404 struct { 405 l_pid_t _pid; /* which child */ 406 l_uid_t _uid; /* sender's uid */ 407 l_int _status; /* exit code */ 408 l_clock_t _utime; 409 l_clock_t _stime; 410 } _sigchld; 411 412 struct { 413 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 414 } _sigfault; 415 416 struct { 417 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 418 l_int _fd; 419 } _sigpoll; 420 } _sifields; 421 } l_siginfo_t; 422 423 #define lsi_pid _sifields._kill._pid 424 #define lsi_uid _sifields._kill._uid 425 #define lsi_tid _sifields._timer._tid 426 #define lsi_overrun _sifields._timer._overrun 427 #define lsi_sys_private _sifields._timer._sys_private 428 #define lsi_status _sifields._sigchld._status 429 #define lsi_utime _sifields._sigchld._utime 430 #define lsi_stime _sifields._sigchld._stime 431 #define lsi_value _sifields._rt._sigval 432 #define lsi_int _sifields._rt._sigval.sival_int 433 #define lsi_ptr _sifields._rt._sigval.sival_ptr 434 #define lsi_addr _sifields._sigfault._addr 435 #define lsi_band _sifields._sigpoll._band 436 #define lsi_fd _sifields._sigpoll._fd 437 438 struct l_fpreg { 439 u_int16_t significand[4]; 440 u_int16_t exponent; 441 }; 442 443 struct l_fpxreg { 444 u_int16_t significand[4]; 445 u_int16_t exponent; 446 u_int16_t padding[3]; 447 }; 448 449 struct l_xmmreg { 450 u_int32_t element[4]; 451 }; 452 453 struct l_fpstate { 454 /* Regular FPU environment */ 455 u_int32_t cw; 456 u_int32_t sw; 457 u_int32_t tag; 458 u_int32_t ipoff; 459 u_int32_t cssel; 460 u_int32_t dataoff; 461 u_int32_t datasel; 462 struct l_fpreg _st[8]; 463 u_int16_t status; 464 u_int16_t magic; /* 0xffff = regular FPU data */ 465 466 /* FXSR FPU environment */ 467 u_int32_t _fxsr_env[6]; /* env is ignored. */ 468 u_int32_t mxcsr; 469 u_int32_t reserved; 470 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 471 struct l_xmmreg _xmm[8]; 472 u_int32_t padding[56]; 473 }; 474 475 /* 476 * We make the stack look like Linux expects it when calling a signal 477 * handler, but use the BSD way of calling the handler and sigreturn(). 478 * This means that we need to pass the pointer to the handler too. 479 * It is appended to the frame to not interfere with the rest of it. 480 */ 481 struct l_sigframe { 482 l_int sf_sig; 483 struct l_sigcontext sf_sc; 484 struct l_fpstate sf_fpstate; 485 l_uint sf_extramask[LINUX_NSIG_WORDS-1]; 486 l_handler_t sf_handler; 487 }; 488 489 struct l_rt_sigframe { 490 l_int sf_sig; 491 l_siginfo_t *sf_siginfo; 492 struct l_ucontext *sf_ucontext; 493 l_siginfo_t sf_si; 494 struct l_ucontext sf_sc; 495 l_handler_t sf_handler; 496 }; 497 498 extern struct sysentvec linux_sysvec; 499 500 /* 501 * arch specific open/fcntl flags 502 */ 503 #define LINUX_F_GETLK64 12 504 #define LINUX_F_SETLK64 13 505 #define LINUX_F_SETLKW64 14 506 507 union l_semun { 508 l_int val; 509 struct l_semid_ds *buf; 510 l_ushort *array; 511 struct l_seminfo *__buf; 512 void *__pad; 513 }; 514 515 struct l_ipc_perm { 516 l_key_t key; 517 l_uid16_t uid; 518 l_gid16_t gid; 519 l_uid16_t cuid; 520 l_gid16_t cgid; 521 l_ushort mode; 522 l_ushort seq; 523 }; 524 525 /* 526 * Socket defines 527 */ 528 #define LINUX_SOL_SOCKET 1 529 #define LINUX_SOL_IP 0 530 #define LINUX_SOL_IPX 256 531 #define LINUX_SOL_AX25 257 532 #define LINUX_SOL_TCP 6 533 #define LINUX_SOL_UDP 17 534 535 #define LINUX_SO_DEBUG 1 536 #define LINUX_SO_REUSEADDR 2 537 #define LINUX_SO_TYPE 3 538 #define LINUX_SO_ERROR 4 539 #define LINUX_SO_DONTROUTE 5 540 #define LINUX_SO_BROADCAST 6 541 #define LINUX_SO_SNDBUF 7 542 #define LINUX_SO_RCVBUF 8 543 #define LINUX_SO_KEEPALIVE 9 544 #define LINUX_SO_OOBINLINE 10 545 #define LINUX_SO_NO_CHECK 11 546 #define LINUX_SO_PRIORITY 12 547 #define LINUX_SO_LINGER 13 548 #define LINUX_SO_PEERCRED 17 549 #define LINUX_SO_RCVLOWAT 18 550 #define LINUX_SO_SNDLOWAT 19 551 #define LINUX_SO_RCVTIMEO 20 552 #define LINUX_SO_SNDTIMEO 21 553 #define LINUX_SO_TIMESTAMP 29 554 #define LINUX_SO_ACCEPTCONN 30 555 556 struct l_sockaddr { 557 l_ushort sa_family; 558 char sa_data[14]; 559 }; 560 561 struct l_msghdr { 562 l_uintptr_t msg_name; 563 l_int msg_namelen; 564 l_uintptr_t msg_iov; 565 l_size_t msg_iovlen; 566 l_uintptr_t msg_control; 567 l_size_t msg_controllen; 568 l_uint msg_flags; 569 }; 570 571 struct l_cmsghdr { 572 l_size_t cmsg_len; 573 l_int cmsg_level; 574 l_int cmsg_type; 575 }; 576 577 struct l_ifmap { 578 l_ulong mem_start; 579 l_ulong mem_end; 580 l_ushort base_addr; 581 u_char irq; 582 u_char dma; 583 u_char port; 584 }; 585 586 #define LINUX_IFHWADDRLEN 6 587 #define LINUX_IFNAMSIZ 16 588 589 struct l_ifreq { 590 union { 591 char ifrn_name[LINUX_IFNAMSIZ]; 592 } ifr_ifrn; 593 594 union { 595 struct l_sockaddr ifru_addr; 596 struct l_sockaddr ifru_dstaddr; 597 struct l_sockaddr ifru_broadaddr; 598 struct l_sockaddr ifru_netmask; 599 struct l_sockaddr ifru_hwaddr; 600 l_short ifru_flags[1]; 601 l_int ifru_metric; 602 l_int ifru_mtu; 603 struct l_ifmap ifru_map; 604 char ifru_slave[LINUX_IFNAMSIZ]; 605 l_caddr_t ifru_data; 606 } ifr_ifru; 607 }; 608 609 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 610 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 611 612 /* 613 * poll() 614 */ 615 #define LINUX_POLLIN 0x0001 616 #define LINUX_POLLPRI 0x0002 617 #define LINUX_POLLOUT 0x0004 618 #define LINUX_POLLERR 0x0008 619 #define LINUX_POLLHUP 0x0010 620 #define LINUX_POLLNVAL 0x0020 621 #define LINUX_POLLRDNORM 0x0040 622 #define LINUX_POLLRDBAND 0x0080 623 #define LINUX_POLLWRNORM 0x0100 624 #define LINUX_POLLWRBAND 0x0200 625 #define LINUX_POLLMSG 0x0400 626 627 struct l_pollfd { 628 l_int fd; 629 l_short events; 630 l_short revents; 631 }; 632 633 struct l_user_desc { 634 l_uint entry_number; 635 l_uint base_addr; 636 l_uint limit; 637 l_uint seg_32bit:1; 638 l_uint contents:2; 639 l_uint read_exec_only:1; 640 l_uint limit_in_pages:1; 641 l_uint seg_not_present:1; 642 l_uint useable:1; 643 }; 644 645 struct l_desc_struct { 646 unsigned long a, b; 647 }; 648 649 650 #define LINUX_LOWERWORD 0x0000ffff 651 652 /* 653 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 654 * These convert Linux user space descriptor to machine one. 655 */ 656 #define LINUX_LDT_entry_a(info) \ 657 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 658 ((info)->limit & LINUX_LOWERWORD)) 659 660 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 661 #define LINUX_ENTRY_B_CONTENTS 10 662 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 663 #define LINUX_ENTRY_B_BASE_ADDR 16 664 #define LINUX_ENTRY_B_USEABLE 20 665 #define LINUX_ENTRY_B_SEG32BIT 22 666 #define LINUX_ENTRY_B_LIMIT 23 667 668 #define LINUX_LDT_entry_b(info) \ 669 (((info)->base_addr & 0xff000000) | \ 670 ((info)->limit & 0xf0000) | \ 671 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 672 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 673 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 674 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 675 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 676 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 677 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 678 679 #define LINUX_LDT_empty(info) \ 680 ((info)->base_addr == 0 && \ 681 (info)->limit == 0 && \ 682 (info)->contents == 0 && \ 683 (info)->seg_not_present == 1 && \ 684 (info)->read_exec_only == 1 && \ 685 (info)->seg_32bit == 0 && \ 686 (info)->limit_in_pages == 0 && \ 687 (info)->useable == 0) 688 689 /* 690 * Macros for converting segments. 691 * They do the same as those in arch/i386/kernel/process.c in Linux. 692 */ 693 #define LINUX_GET_BASE(desc) \ 694 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 695 (((desc)->b << 16) & 0x00ff0000) | \ 696 ((desc)->b & 0xff000000)) 697 698 #define LINUX_GET_LIMIT(desc) \ 699 (((desc)->a & LINUX_LOWERWORD) | \ 700 ((desc)->b & 0xf0000)) 701 702 #define LINUX_GET_32BIT(desc) \ 703 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 704 #define LINUX_GET_CONTENTS(desc) \ 705 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 706 #define LINUX_GET_WRITABLE(desc) \ 707 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 708 #define LINUX_GET_LIMIT_PAGES(desc) \ 709 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 710 #define LINUX_GET_PRESENT(desc) \ 711 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 712 #define LINUX_GET_USEABLE(desc) \ 713 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 714 715 #define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r)) 716 717 /* robust futexes */ 718 struct linux_robust_list { 719 struct linux_robust_list *next; 720 }; 721 722 struct linux_robust_list_head { 723 struct linux_robust_list list; 724 l_long futex_offset; 725 struct linux_robust_list *pending_list; 726 }; 727 728 #endif /* !_I386_LINUX_H_ */ 729