linux.h revision 293541
1200442Sjh/*- 2200442Sjh * Copyright (c) 1994-1996 S��ren Schmidt 3200442Sjh * All rights reserved. 4200442Sjh * 5200442Sjh * 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: stable/10/sys/i386/linux/linux.h 293541 2016-01-09 16:31:10Z dchagin $ 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 */ 41extern 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 */ 63typedef int l_int; 64typedef int32_t l_long; 65typedef int64_t l_longlong; 66typedef short l_short; 67typedef unsigned int l_uint; 68typedef uint32_t l_ulong; 69typedef uint64_t l_ulonglong; 70typedef unsigned short l_ushort; 71 72typedef char *l_caddr_t; 73typedef l_ulong l_uintptr_t; 74typedef l_long l_clock_t; 75typedef l_int l_daddr_t; 76typedef l_ushort l_dev_t; 77typedef l_uint l_gid_t; 78typedef l_ushort l_gid16_t; 79typedef l_ulong l_ino_t; 80typedef l_int l_key_t; 81typedef l_longlong l_loff_t; 82typedef l_ushort l_mode_t; 83typedef l_long l_off_t; 84typedef l_int l_pid_t; 85typedef l_uint l_size_t; 86typedef l_long l_suseconds_t; 87typedef l_long l_time_t; 88typedef l_uint l_uid_t; 89typedef l_ushort l_uid16_t; 90typedef l_int l_timer_t; 91typedef l_int l_mqd_t; 92 93typedef struct { 94 l_int val[2]; 95} l_fsid_t; 96 97typedef struct { 98 l_time_t tv_sec; 99 l_suseconds_t tv_usec; 100} l_timeval; 101 102#define l_fd_set fd_set 103 104/* 105 * Miscellaneous 106 */ 107#define LINUX_AT_COUNT 20 /* Count of used aux entry types. 108 * Keep this synchronized with 109 * elf_linux_fixup() code. 110 */ 111struct l___sysctl_args 112{ 113 l_int *name; 114 l_int nlen; 115 void *oldval; 116 l_size_t *oldlenp; 117 void *newval; 118 l_size_t newlen; 119 l_ulong __spare[4]; 120}; 121 122/* Resource limits */ 123#define LINUX_RLIMIT_CPU 0 124#define LINUX_RLIMIT_FSIZE 1 125#define LINUX_RLIMIT_DATA 2 126#define LINUX_RLIMIT_STACK 3 127#define LINUX_RLIMIT_CORE 4 128#define LINUX_RLIMIT_RSS 5 129#define LINUX_RLIMIT_NPROC 6 130#define LINUX_RLIMIT_NOFILE 7 131#define LINUX_RLIMIT_MEMLOCK 8 132#define LINUX_RLIMIT_AS 9 /* Address space limit */ 133 134#define LINUX_RLIM_NLIMITS 10 135 136struct l_rlimit { 137 l_ulong rlim_cur; 138 l_ulong rlim_max; 139}; 140 141/* mmap options */ 142#define LINUX_MAP_SHARED 0x0001 143#define LINUX_MAP_PRIVATE 0x0002 144#define LINUX_MAP_FIXED 0x0010 145#define LINUX_MAP_ANON 0x0020 146#define LINUX_MAP_GROWSDOWN 0x0100 147 148struct l_mmap_argv { 149 l_uintptr_t addr; 150 l_size_t len; 151 l_int prot; 152 l_int flags; 153 l_int fd; 154 l_off_t pgoff; 155} __packed; 156 157/* 158 * stat family of syscalls 159 */ 160struct l_timespec { 161 l_time_t tv_sec; 162 l_long tv_nsec; 163}; 164 165struct l_newstat { 166 l_ushort st_dev; 167 l_ushort __pad1; 168 l_ulong st_ino; 169 l_ushort st_mode; 170 l_ushort st_nlink; 171 l_ushort st_uid; 172 l_ushort st_gid; 173 l_ushort st_rdev; 174 l_ushort __pad2; 175 l_ulong st_size; 176 l_ulong st_blksize; 177 l_ulong st_blocks; 178 struct l_timespec st_atim; 179 struct l_timespec st_mtim; 180 struct l_timespec st_ctim; 181 l_ulong __unused4; 182 l_ulong __unused5; 183}; 184 185struct l_stat { 186 l_ushort st_dev; 187 l_ulong st_ino; 188 l_ushort st_mode; 189 l_ushort st_nlink; 190 l_ushort st_uid; 191 l_ushort st_gid; 192 l_ushort st_rdev; 193 l_long st_size; 194 struct l_timespec st_atim; 195 struct l_timespec st_mtim; 196 struct l_timespec st_ctim; 197 l_long st_blksize; 198 l_long st_blocks; 199 l_ulong st_flags; 200 l_ulong st_gen; 201}; 202 203struct l_stat64 { 204 l_ushort st_dev; 205 u_char __pad0[10]; 206 l_ulong __st_ino; 207 l_uint st_mode; 208 l_uint st_nlink; 209 l_ulong st_uid; 210 l_ulong st_gid; 211 l_ushort st_rdev; 212 u_char __pad3[10]; 213 l_longlong st_size; 214 l_ulong st_blksize; 215 l_ulong st_blocks; 216 l_ulong __pad4; 217 struct l_timespec st_atim; 218 struct l_timespec st_mtim; 219 struct l_timespec st_ctim; 220 l_ulonglong st_ino; 221}; 222 223struct l_statfs64 { 224 l_int f_type; 225 l_int f_bsize; 226 uint64_t f_blocks; 227 uint64_t f_bfree; 228 uint64_t f_bavail; 229 uint64_t f_files; 230 uint64_t f_ffree; 231 l_fsid_t f_fsid; 232 l_int f_namelen; 233 l_int f_spare[6]; 234}; 235 236/* 237 * Signalling 238 */ 239#define LINUX_SIGHUP 1 240#define LINUX_SIGINT 2 241#define LINUX_SIGQUIT 3 242#define LINUX_SIGILL 4 243#define LINUX_SIGTRAP 5 244#define LINUX_SIGABRT 6 245#define LINUX_SIGIOT LINUX_SIGABRT 246#define LINUX_SIGBUS 7 247#define LINUX_SIGFPE 8 248#define LINUX_SIGKILL 9 249#define LINUX_SIGUSR1 10 250#define LINUX_SIGSEGV 11 251#define LINUX_SIGUSR2 12 252#define LINUX_SIGPIPE 13 253#define LINUX_SIGALRM 14 254#define LINUX_SIGTERM 15 255#define LINUX_SIGSTKFLT 16 256#define LINUX_SIGCHLD 17 257#define LINUX_SIGCONT 18 258#define LINUX_SIGSTOP 19 259#define LINUX_SIGTSTP 20 260#define LINUX_SIGTTIN 21 261#define LINUX_SIGTTOU 22 262#define LINUX_SIGURG 23 263#define LINUX_SIGXCPU 24 264#define LINUX_SIGXFSZ 25 265#define LINUX_SIGVTALRM 26 266#define LINUX_SIGPROF 27 267#define LINUX_SIGWINCH 28 268#define LINUX_SIGIO 29 269#define LINUX_SIGPOLL LINUX_SIGIO 270#define LINUX_SIGPWR 30 271#define LINUX_SIGSYS 31 272#define LINUX_SIGRTMIN 32 273 274#define LINUX_SIGTBLSZ 31 275#define LINUX_NSIG_WORDS 2 276#define LINUX_NBPW 32 277#define LINUX_NSIG (LINUX_NBPW * LINUX_NSIG_WORDS) 278 279/* sigaction flags */ 280#define LINUX_SA_NOCLDSTOP 0x00000001 281#define LINUX_SA_NOCLDWAIT 0x00000002 282#define LINUX_SA_SIGINFO 0x00000004 283#define LINUX_SA_RESTORER 0x04000000 284#define LINUX_SA_ONSTACK 0x08000000 285#define LINUX_SA_RESTART 0x10000000 286#define LINUX_SA_INTERRUPT 0x20000000 287#define LINUX_SA_NOMASK 0x40000000 288#define LINUX_SA_ONESHOT 0x80000000 289 290/* sigprocmask actions */ 291#define LINUX_SIG_BLOCK 0 292#define LINUX_SIG_UNBLOCK 1 293#define LINUX_SIG_SETMASK 2 294 295/* sigset_t macros */ 296#define LINUX_SIGEMPTYSET(set) (set).__bits[0] = (set).__bits[1] = 0 297#define LINUX_SIGISMEMBER(set, sig) SIGISMEMBER(set, sig) 298#define LINUX_SIGADDSET(set, sig) SIGADDSET(set, sig) 299 300/* sigaltstack */ 301#define LINUX_MINSIGSTKSZ 2048 302#define LINUX_SS_ONSTACK 1 303#define LINUX_SS_DISABLE 2 304 305int linux_to_bsd_sigaltstack(int lsa); 306int bsd_to_linux_sigaltstack(int bsa); 307 308typedef void (*l_handler_t)(l_int); 309typedef l_ulong l_osigset_t; 310 311typedef struct { 312 l_uint __bits[LINUX_NSIG_WORDS]; 313} l_sigset_t; 314 315typedef struct { 316 l_handler_t lsa_handler; 317 l_osigset_t lsa_mask; 318 l_ulong lsa_flags; 319 void (*lsa_restorer)(void); 320} l_osigaction_t; 321 322typedef struct { 323 l_handler_t lsa_handler; 324 l_ulong lsa_flags; 325 void (*lsa_restorer)(void); 326 l_sigset_t lsa_mask; 327} l_sigaction_t; 328 329typedef struct { 330 void *ss_sp; 331 l_int ss_flags; 332 l_size_t ss_size; 333} l_stack_t; 334 335/* The Linux sigcontext, pretty much a standard 386 trapframe. */ 336struct l_sigcontext { 337 l_int sc_gs; 338 l_int sc_fs; 339 l_int sc_es; 340 l_int sc_ds; 341 l_int sc_edi; 342 l_int sc_esi; 343 l_int sc_ebp; 344 l_int sc_esp; 345 l_int sc_ebx; 346 l_int sc_edx; 347 l_int sc_ecx; 348 l_int sc_eax; 349 l_int sc_trapno; 350 l_int sc_err; 351 l_int sc_eip; 352 l_int sc_cs; 353 l_int sc_eflags; 354 l_int sc_esp_at_signal; 355 l_int sc_ss; 356 l_int sc_387; 357 l_int sc_mask; 358 l_int sc_cr2; 359}; 360 361struct l_ucontext { 362 l_ulong uc_flags; 363 void *uc_link; 364 l_stack_t uc_stack; 365 struct l_sigcontext uc_mcontext; 366 l_sigset_t uc_sigmask; 367}; 368 369#define LINUX_SI_MAX_SIZE 128 370#define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 371 372typedef union l_sigval { 373 l_int sival_int; 374 l_uintptr_t sival_ptr; 375} l_sigval_t; 376 377typedef struct l_siginfo { 378 l_int lsi_signo; 379 l_int lsi_errno; 380 l_int lsi_code; 381 union { 382 l_int _pad[LINUX_SI_PAD_SIZE]; 383 384 struct { 385 l_pid_t _pid; 386 l_uid_t _uid; 387 } _kill; 388 389 struct { 390 l_timer_t _tid; 391 l_int _overrun; 392 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 393 l_sigval_t _sigval; 394 l_int _sys_private; 395 } _timer; 396 397 struct { 398 l_pid_t _pid; /* sender's pid */ 399 l_uid_t _uid; /* sender's uid */ 400 l_sigval_t _sigval; 401 } _rt; 402 403 struct { 404 l_pid_t _pid; /* which child */ 405 l_uid_t _uid; /* sender's uid */ 406 l_int _status; /* exit code */ 407 l_clock_t _utime; 408 l_clock_t _stime; 409 } _sigchld; 410 411 struct { 412 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 413 } _sigfault; 414 415 struct { 416 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 417 l_int _fd; 418 } _sigpoll; 419 } _sifields; 420} l_siginfo_t; 421 422#define lsi_pid _sifields._kill._pid 423#define lsi_uid _sifields._kill._uid 424#define lsi_tid _sifields._timer._tid 425#define lsi_overrun _sifields._timer._overrun 426#define lsi_sys_private _sifields._timer._sys_private 427#define lsi_status _sifields._sigchld._status 428#define lsi_utime _sifields._sigchld._utime 429#define lsi_stime _sifields._sigchld._stime 430#define lsi_value _sifields._rt._sigval 431#define lsi_int _sifields._rt._sigval.sival_int 432#define lsi_ptr _sifields._rt._sigval.sival_ptr 433#define lsi_addr _sifields._sigfault._addr 434#define lsi_band _sifields._sigpoll._band 435#define lsi_fd _sifields._sigpoll._fd 436 437struct l_fpreg { 438 u_int16_t significand[4]; 439 u_int16_t exponent; 440}; 441 442struct l_fpxreg { 443 u_int16_t significand[4]; 444 u_int16_t exponent; 445 u_int16_t padding[3]; 446}; 447 448struct l_xmmreg { 449 u_int32_t element[4]; 450}; 451 452struct l_fpstate { 453 /* Regular FPU environment */ 454 u_int32_t cw; 455 u_int32_t sw; 456 u_int32_t tag; 457 u_int32_t ipoff; 458 u_int32_t cssel; 459 u_int32_t dataoff; 460 u_int32_t datasel; 461 struct l_fpreg _st[8]; 462 u_int16_t status; 463 u_int16_t magic; /* 0xffff = regular FPU data */ 464 465 /* FXSR FPU environment */ 466 u_int32_t _fxsr_env[6]; /* env is ignored. */ 467 u_int32_t mxcsr; 468 u_int32_t reserved; 469 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 470 struct l_xmmreg _xmm[8]; 471 u_int32_t padding[56]; 472}; 473 474/* 475 * We make the stack look like Linux expects it when calling a signal 476 * handler, but use the BSD way of calling the handler and sigreturn(). 477 * This means that we need to pass the pointer to the handler too. 478 * It is appended to the frame to not interfere with the rest of it. 479 */ 480struct l_sigframe { 481 l_int sf_sig; 482 struct l_sigcontext sf_sc; 483 struct l_fpstate sf_fpstate; 484 l_uint sf_extramask[LINUX_NSIG_WORDS-1]; 485 l_handler_t sf_handler; 486}; 487 488struct l_rt_sigframe { 489 l_int sf_sig; 490 l_siginfo_t *sf_siginfo; 491 struct l_ucontext *sf_ucontext; 492 l_siginfo_t sf_si; 493 struct l_ucontext sf_sc; 494 l_handler_t sf_handler; 495}; 496 497extern struct sysentvec linux_sysvec; 498 499/* 500 * arch specific open/fcntl flags 501 */ 502#define LINUX_F_GETLK64 12 503#define LINUX_F_SETLK64 13 504#define LINUX_F_SETLKW64 14 505 506union l_semun { 507 l_int val; 508 struct l_semid_ds *buf; 509 l_ushort *array; 510 struct l_seminfo *__buf; 511 void *__pad; 512}; 513 514struct l_ipc_perm { 515 l_key_t key; 516 l_uid16_t uid; 517 l_gid16_t gid; 518 l_uid16_t cuid; 519 l_gid16_t cgid; 520 l_ushort mode; 521 l_ushort seq; 522}; 523 524/* 525 * Socket defines 526 */ 527#define LINUX_SOL_SOCKET 1 528#define LINUX_SOL_IP 0 529#define LINUX_SOL_IPX 256 530#define LINUX_SOL_AX25 257 531#define LINUX_SOL_TCP 6 532#define LINUX_SOL_UDP 17 533 534#define LINUX_SO_DEBUG 1 535#define LINUX_SO_REUSEADDR 2 536#define LINUX_SO_TYPE 3 537#define LINUX_SO_ERROR 4 538#define LINUX_SO_DONTROUTE 5 539#define LINUX_SO_BROADCAST 6 540#define LINUX_SO_SNDBUF 7 541#define LINUX_SO_RCVBUF 8 542#define LINUX_SO_KEEPALIVE 9 543#define LINUX_SO_OOBINLINE 10 544#define LINUX_SO_NO_CHECK 11 545#define LINUX_SO_PRIORITY 12 546#define LINUX_SO_LINGER 13 547#define LINUX_SO_PEERCRED 17 548#define LINUX_SO_RCVLOWAT 18 549#define LINUX_SO_SNDLOWAT 19 550#define LINUX_SO_RCVTIMEO 20 551#define LINUX_SO_SNDTIMEO 21 552#define LINUX_SO_TIMESTAMP 29 553#define LINUX_SO_ACCEPTCONN 30 554 555struct l_sockaddr { 556 l_ushort sa_family; 557 char sa_data[14]; 558}; 559 560struct l_msghdr { 561 l_uintptr_t msg_name; 562 l_int msg_namelen; 563 l_uintptr_t msg_iov; 564 l_size_t msg_iovlen; 565 l_uintptr_t msg_control; 566 l_size_t msg_controllen; 567 l_uint msg_flags; 568}; 569 570struct l_cmsghdr { 571 l_size_t cmsg_len; 572 l_int cmsg_level; 573 l_int cmsg_type; 574}; 575 576struct l_ifmap { 577 l_ulong mem_start; 578 l_ulong mem_end; 579 l_ushort base_addr; 580 u_char irq; 581 u_char dma; 582 u_char port; 583}; 584 585#define LINUX_IFHWADDRLEN 6 586#define LINUX_IFNAMSIZ 16 587 588struct l_ifreq { 589 union { 590 char ifrn_name[LINUX_IFNAMSIZ]; 591 } ifr_ifrn; 592 593 union { 594 struct l_sockaddr ifru_addr; 595 struct l_sockaddr ifru_dstaddr; 596 struct l_sockaddr ifru_broadaddr; 597 struct l_sockaddr ifru_netmask; 598 struct l_sockaddr ifru_hwaddr; 599 l_short ifru_flags[1]; 600 l_int ifru_metric; 601 l_int ifru_mtu; 602 struct l_ifmap ifru_map; 603 char ifru_slave[LINUX_IFNAMSIZ]; 604 l_caddr_t ifru_data; 605 } ifr_ifru; 606}; 607 608#define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 609#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 610 611/* 612 * poll() 613 */ 614#define LINUX_POLLIN 0x0001 615#define LINUX_POLLPRI 0x0002 616#define LINUX_POLLOUT 0x0004 617#define LINUX_POLLERR 0x0008 618#define LINUX_POLLHUP 0x0010 619#define LINUX_POLLNVAL 0x0020 620#define LINUX_POLLRDNORM 0x0040 621#define LINUX_POLLRDBAND 0x0080 622#define LINUX_POLLWRNORM 0x0100 623#define LINUX_POLLWRBAND 0x0200 624#define LINUX_POLLMSG 0x0400 625 626struct l_pollfd { 627 l_int fd; 628 l_short events; 629 l_short revents; 630}; 631 632struct l_user_desc { 633 l_uint entry_number; 634 l_uint base_addr; 635 l_uint limit; 636 l_uint seg_32bit:1; 637 l_uint contents:2; 638 l_uint read_exec_only:1; 639 l_uint limit_in_pages:1; 640 l_uint seg_not_present:1; 641 l_uint useable:1; 642}; 643 644struct l_desc_struct { 645 unsigned long a, b; 646}; 647 648 649#define LINUX_LOWERWORD 0x0000ffff 650 651/* 652 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 653 * These convert Linux user space descriptor to machine one. 654 */ 655#define LINUX_LDT_entry_a(info) \ 656 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 657 ((info)->limit & LINUX_LOWERWORD)) 658 659#define LINUX_ENTRY_B_READ_EXEC_ONLY 9 660#define LINUX_ENTRY_B_CONTENTS 10 661#define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 662#define LINUX_ENTRY_B_BASE_ADDR 16 663#define LINUX_ENTRY_B_USEABLE 20 664#define LINUX_ENTRY_B_SEG32BIT 22 665#define LINUX_ENTRY_B_LIMIT 23 666 667#define LINUX_LDT_entry_b(info) \ 668 (((info)->base_addr & 0xff000000) | \ 669 ((info)->limit & 0xf0000) | \ 670 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 671 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 672 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 673 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 674 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 675 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 676 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 677 678#define LINUX_LDT_empty(info) \ 679 ((info)->base_addr == 0 && \ 680 (info)->limit == 0 && \ 681 (info)->contents == 0 && \ 682 (info)->seg_not_present == 1 && \ 683 (info)->read_exec_only == 1 && \ 684 (info)->seg_32bit == 0 && \ 685 (info)->limit_in_pages == 0 && \ 686 (info)->useable == 0) 687 688/* 689 * Macros for converting segments. 690 * They do the same as those in arch/i386/kernel/process.c in Linux. 691 */ 692#define LINUX_GET_BASE(desc) \ 693 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 694 (((desc)->b << 16) & 0x00ff0000) | \ 695 ((desc)->b & 0xff000000)) 696 697#define LINUX_GET_LIMIT(desc) \ 698 (((desc)->a & LINUX_LOWERWORD) | \ 699 ((desc)->b & 0xf0000)) 700 701#define LINUX_GET_32BIT(desc) \ 702 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 703#define LINUX_GET_CONTENTS(desc) \ 704 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 705#define LINUX_GET_WRITABLE(desc) \ 706 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 707#define LINUX_GET_LIMIT_PAGES(desc) \ 708 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 709#define LINUX_GET_PRESENT(desc) \ 710 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 711#define LINUX_GET_USEABLE(desc) \ 712 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 713 714#define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r)) 715 716/* robust futexes */ 717struct linux_robust_list { 718 struct linux_robust_list *next; 719}; 720 721struct linux_robust_list_head { 722 struct linux_robust_list list; 723 l_long futex_offset; 724 struct linux_robust_list *pending_list; 725}; 726 727#endif /* !_I386_LINUX_H_ */ 728