linux.h revision 293572
1/*- 2 * Copyright (c) 1994-1996 S��ren 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: stable/10/sys/i386/linux/linux.h 293572 2016-01-09 17:22:51Z 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; 92typedef l_ulong l_fd_mask; 93 94typedef struct { 95 l_int val[2]; 96} l_fsid_t; 97 98typedef 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 */ 112struct 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 137struct 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 149struct 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 */ 161struct l_timespec { 162 l_time_t tv_sec; 163 l_long tv_nsec; 164}; 165 166struct 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 186struct 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 204struct 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 224struct 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 306typedef void (*l_handler_t)(l_int); 307typedef l_ulong l_osigset_t; 308 309typedef struct { 310 l_uint __bits[LINUX_NSIG_WORDS]; 311} l_sigset_t; 312 313typedef struct { 314 l_handler_t lsa_handler; 315 l_osigset_t lsa_mask; 316 l_ulong lsa_flags; 317 void (*lsa_restorer)(void); 318} l_osigaction_t; 319 320typedef struct { 321 l_handler_t lsa_handler; 322 l_ulong lsa_flags; 323 void (*lsa_restorer)(void); 324 l_sigset_t lsa_mask; 325} l_sigaction_t; 326 327typedef struct { 328 void *ss_sp; 329 l_int ss_flags; 330 l_size_t ss_size; 331} l_stack_t; 332 333/* The Linux sigcontext, pretty much a standard 386 trapframe. */ 334struct l_sigcontext { 335 l_int sc_gs; 336 l_int sc_fs; 337 l_int sc_es; 338 l_int sc_ds; 339 l_int sc_edi; 340 l_int sc_esi; 341 l_int sc_ebp; 342 l_int sc_esp; 343 l_int sc_ebx; 344 l_int sc_edx; 345 l_int sc_ecx; 346 l_int sc_eax; 347 l_int sc_trapno; 348 l_int sc_err; 349 l_int sc_eip; 350 l_int sc_cs; 351 l_int sc_eflags; 352 l_int sc_esp_at_signal; 353 l_int sc_ss; 354 l_int sc_387; 355 l_int sc_mask; 356 l_int sc_cr2; 357}; 358 359struct l_ucontext { 360 l_ulong uc_flags; 361 void *uc_link; 362 l_stack_t uc_stack; 363 struct l_sigcontext uc_mcontext; 364 l_sigset_t uc_sigmask; 365}; 366 367#define LINUX_SI_MAX_SIZE 128 368#define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 369 370typedef union l_sigval { 371 l_int sival_int; 372 l_uintptr_t sival_ptr; 373} l_sigval_t; 374 375typedef struct l_siginfo { 376 l_int lsi_signo; 377 l_int lsi_errno; 378 l_int lsi_code; 379 union { 380 l_int _pad[LINUX_SI_PAD_SIZE]; 381 382 struct { 383 l_pid_t _pid; 384 l_uid_t _uid; 385 } _kill; 386 387 struct { 388 l_timer_t _tid; 389 l_int _overrun; 390 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 391 l_sigval_t _sigval; 392 l_int _sys_private; 393 } _timer; 394 395 struct { 396 l_pid_t _pid; /* sender's pid */ 397 l_uid_t _uid; /* sender's uid */ 398 l_sigval_t _sigval; 399 } _rt; 400 401 struct { 402 l_pid_t _pid; /* which child */ 403 l_uid_t _uid; /* sender's uid */ 404 l_int _status; /* exit code */ 405 l_clock_t _utime; 406 l_clock_t _stime; 407 } _sigchld; 408 409 struct { 410 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 411 } _sigfault; 412 413 struct { 414 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 415 l_int _fd; 416 } _sigpoll; 417 } _sifields; 418} l_siginfo_t; 419 420#define lsi_pid _sifields._kill._pid 421#define lsi_uid _sifields._kill._uid 422#define lsi_tid _sifields._timer._tid 423#define lsi_overrun _sifields._timer._overrun 424#define lsi_sys_private _sifields._timer._sys_private 425#define lsi_status _sifields._sigchld._status 426#define lsi_utime _sifields._sigchld._utime 427#define lsi_stime _sifields._sigchld._stime 428#define lsi_value _sifields._rt._sigval 429#define lsi_int _sifields._rt._sigval.sival_int 430#define lsi_ptr _sifields._rt._sigval.sival_ptr 431#define lsi_addr _sifields._sigfault._addr 432#define lsi_band _sifields._sigpoll._band 433#define lsi_fd _sifields._sigpoll._fd 434 435struct l_fpreg { 436 u_int16_t significand[4]; 437 u_int16_t exponent; 438}; 439 440struct l_fpxreg { 441 u_int16_t significand[4]; 442 u_int16_t exponent; 443 u_int16_t padding[3]; 444}; 445 446struct l_xmmreg { 447 u_int32_t element[4]; 448}; 449 450struct l_fpstate { 451 /* Regular FPU environment */ 452 u_int32_t cw; 453 u_int32_t sw; 454 u_int32_t tag; 455 u_int32_t ipoff; 456 u_int32_t cssel; 457 u_int32_t dataoff; 458 u_int32_t datasel; 459 struct l_fpreg _st[8]; 460 u_int16_t status; 461 u_int16_t magic; /* 0xffff = regular FPU data */ 462 463 /* FXSR FPU environment */ 464 u_int32_t _fxsr_env[6]; /* env is ignored. */ 465 u_int32_t mxcsr; 466 u_int32_t reserved; 467 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 468 struct l_xmmreg _xmm[8]; 469 u_int32_t padding[56]; 470}; 471 472/* 473 * We make the stack look like Linux expects it when calling a signal 474 * handler, but use the BSD way of calling the handler and sigreturn(). 475 * This means that we need to pass the pointer to the handler too. 476 * It is appended to the frame to not interfere with the rest of it. 477 */ 478struct l_sigframe { 479 l_int sf_sig; 480 struct l_sigcontext sf_sc; 481 struct l_fpstate sf_fpstate; 482 l_uint sf_extramask[LINUX_NSIG_WORDS-1]; 483 l_handler_t sf_handler; 484}; 485 486struct l_rt_sigframe { 487 l_int sf_sig; 488 l_siginfo_t *sf_siginfo; 489 struct l_ucontext *sf_ucontext; 490 l_siginfo_t sf_si; 491 struct l_ucontext sf_sc; 492 l_handler_t sf_handler; 493}; 494 495extern struct sysentvec linux_sysvec; 496 497/* 498 * arch specific open/fcntl flags 499 */ 500#define LINUX_F_GETLK64 12 501#define LINUX_F_SETLK64 13 502#define LINUX_F_SETLKW64 14 503 504union l_semun { 505 l_int val; 506 struct l_semid_ds *buf; 507 l_ushort *array; 508 struct l_seminfo *__buf; 509 void *__pad; 510}; 511 512struct l_ipc_perm { 513 l_key_t key; 514 l_uid16_t uid; 515 l_gid16_t gid; 516 l_uid16_t cuid; 517 l_gid16_t cgid; 518 l_ushort mode; 519 l_ushort seq; 520}; 521 522/* 523 * Socket defines 524 */ 525#define LINUX_SOL_SOCKET 1 526#define LINUX_SOL_IP 0 527#define LINUX_SOL_IPX 256 528#define LINUX_SOL_AX25 257 529#define LINUX_SOL_TCP 6 530#define LINUX_SOL_UDP 17 531 532#define LINUX_SO_DEBUG 1 533#define LINUX_SO_REUSEADDR 2 534#define LINUX_SO_TYPE 3 535#define LINUX_SO_ERROR 4 536#define LINUX_SO_DONTROUTE 5 537#define LINUX_SO_BROADCAST 6 538#define LINUX_SO_SNDBUF 7 539#define LINUX_SO_RCVBUF 8 540#define LINUX_SO_KEEPALIVE 9 541#define LINUX_SO_OOBINLINE 10 542#define LINUX_SO_NO_CHECK 11 543#define LINUX_SO_PRIORITY 12 544#define LINUX_SO_LINGER 13 545#define LINUX_SO_PEERCRED 17 546#define LINUX_SO_RCVLOWAT 18 547#define LINUX_SO_SNDLOWAT 19 548#define LINUX_SO_RCVTIMEO 20 549#define LINUX_SO_SNDTIMEO 21 550#define LINUX_SO_TIMESTAMP 29 551#define LINUX_SO_ACCEPTCONN 30 552 553struct l_sockaddr { 554 l_ushort sa_family; 555 char sa_data[14]; 556}; 557 558struct l_msghdr { 559 l_uintptr_t msg_name; 560 l_int msg_namelen; 561 l_uintptr_t msg_iov; 562 l_size_t msg_iovlen; 563 l_uintptr_t msg_control; 564 l_size_t msg_controllen; 565 l_uint msg_flags; 566}; 567 568struct l_cmsghdr { 569 l_size_t cmsg_len; 570 l_int cmsg_level; 571 l_int cmsg_type; 572}; 573 574struct l_ifmap { 575 l_ulong mem_start; 576 l_ulong mem_end; 577 l_ushort base_addr; 578 u_char irq; 579 u_char dma; 580 u_char port; 581}; 582 583#define LINUX_IFHWADDRLEN 6 584#define LINUX_IFNAMSIZ 16 585 586struct l_ifreq { 587 union { 588 char ifrn_name[LINUX_IFNAMSIZ]; 589 } ifr_ifrn; 590 591 union { 592 struct l_sockaddr ifru_addr; 593 struct l_sockaddr ifru_dstaddr; 594 struct l_sockaddr ifru_broadaddr; 595 struct l_sockaddr ifru_netmask; 596 struct l_sockaddr ifru_hwaddr; 597 l_short ifru_flags[1]; 598 l_int ifru_metric; 599 l_int ifru_mtu; 600 struct l_ifmap ifru_map; 601 char ifru_slave[LINUX_IFNAMSIZ]; 602 l_caddr_t ifru_data; 603 } ifr_ifru; 604}; 605 606#define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 607#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 608 609/* 610 * poll() 611 */ 612#define LINUX_POLLIN 0x0001 613#define LINUX_POLLPRI 0x0002 614#define LINUX_POLLOUT 0x0004 615#define LINUX_POLLERR 0x0008 616#define LINUX_POLLHUP 0x0010 617#define LINUX_POLLNVAL 0x0020 618#define LINUX_POLLRDNORM 0x0040 619#define LINUX_POLLRDBAND 0x0080 620#define LINUX_POLLWRNORM 0x0100 621#define LINUX_POLLWRBAND 0x0200 622#define LINUX_POLLMSG 0x0400 623 624struct l_pollfd { 625 l_int fd; 626 l_short events; 627 l_short revents; 628}; 629 630struct l_user_desc { 631 l_uint entry_number; 632 l_uint base_addr; 633 l_uint limit; 634 l_uint seg_32bit:1; 635 l_uint contents:2; 636 l_uint read_exec_only:1; 637 l_uint limit_in_pages:1; 638 l_uint seg_not_present:1; 639 l_uint useable:1; 640}; 641 642struct l_desc_struct { 643 unsigned long a, b; 644}; 645 646 647#define LINUX_LOWERWORD 0x0000ffff 648 649/* 650 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 651 * These convert Linux user space descriptor to machine one. 652 */ 653#define LINUX_LDT_entry_a(info) \ 654 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 655 ((info)->limit & LINUX_LOWERWORD)) 656 657#define LINUX_ENTRY_B_READ_EXEC_ONLY 9 658#define LINUX_ENTRY_B_CONTENTS 10 659#define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 660#define LINUX_ENTRY_B_BASE_ADDR 16 661#define LINUX_ENTRY_B_USEABLE 20 662#define LINUX_ENTRY_B_SEG32BIT 22 663#define LINUX_ENTRY_B_LIMIT 23 664 665#define LINUX_LDT_entry_b(info) \ 666 (((info)->base_addr & 0xff000000) | \ 667 ((info)->limit & 0xf0000) | \ 668 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 669 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 670 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 671 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 672 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 673 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 674 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 675 676#define LINUX_LDT_empty(info) \ 677 ((info)->base_addr == 0 && \ 678 (info)->limit == 0 && \ 679 (info)->contents == 0 && \ 680 (info)->seg_not_present == 1 && \ 681 (info)->read_exec_only == 1 && \ 682 (info)->seg_32bit == 0 && \ 683 (info)->limit_in_pages == 0 && \ 684 (info)->useable == 0) 685 686/* 687 * Macros for converting segments. 688 * They do the same as those in arch/i386/kernel/process.c in Linux. 689 */ 690#define LINUX_GET_BASE(desc) \ 691 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 692 (((desc)->b << 16) & 0x00ff0000) | \ 693 ((desc)->b & 0xff000000)) 694 695#define LINUX_GET_LIMIT(desc) \ 696 (((desc)->a & LINUX_LOWERWORD) | \ 697 ((desc)->b & 0xf0000)) 698 699#define LINUX_GET_32BIT(desc) \ 700 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 701#define LINUX_GET_CONTENTS(desc) \ 702 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 703#define LINUX_GET_WRITABLE(desc) \ 704 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 705#define LINUX_GET_LIMIT_PAGES(desc) \ 706 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 707#define LINUX_GET_PRESENT(desc) \ 708 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 709#define LINUX_GET_USEABLE(desc) \ 710 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 711 712#define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r)) 713 714/* robust futexes */ 715struct linux_robust_list { 716 struct linux_robust_list *next; 717}; 718 719struct linux_robust_list_head { 720 struct linux_robust_list list; 721 l_long futex_offset; 722 struct linux_robust_list *pending_list; 723}; 724 725#endif /* !_I386_LINUX_H_ */ 726