linux.h revision 293500
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 293500 2016-01-09 15:23:54Z 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#ifdef MALLOC_DECLARE 50MALLOC_DECLARE(M_LINUX); 51#endif 52 53#define LINUX_SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) 54#define LINUX_USRSTACK LINUX_SHAREDPAGE 55 56#define PTRIN(v) (void *)(v) 57#define PTROUT(v) (l_uintptr_t)(v) 58 59#define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0) 60#define CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0) 61#define PTRIN_CP(src,dst,fld) \ 62 do { (dst).fld = PTRIN((src).fld); } while (0) 63 64/* 65 * Provide a separate set of types for the Linux types. 66 */ 67typedef int l_int; 68typedef int32_t l_long; 69typedef int64_t l_longlong; 70typedef short l_short; 71typedef unsigned int l_uint; 72typedef uint32_t l_ulong; 73typedef uint64_t l_ulonglong; 74typedef unsigned short l_ushort; 75 76typedef char *l_caddr_t; 77typedef l_ulong l_uintptr_t; 78typedef l_long l_clock_t; 79typedef l_int l_daddr_t; 80typedef l_ushort l_dev_t; 81typedef l_uint l_gid_t; 82typedef l_ushort l_gid16_t; 83typedef l_ulong l_ino_t; 84typedef l_int l_key_t; 85typedef l_longlong l_loff_t; 86typedef l_ushort l_mode_t; 87typedef l_long l_off_t; 88typedef l_int l_pid_t; 89typedef l_uint l_size_t; 90typedef l_long l_suseconds_t; 91typedef l_long l_time_t; 92typedef l_uint l_uid_t; 93typedef l_ushort l_uid16_t; 94typedef l_int l_timer_t; 95typedef l_int l_mqd_t; 96 97typedef struct { 98 l_int val[2]; 99} l_fsid_t; 100 101typedef struct { 102 l_time_t tv_sec; 103 l_suseconds_t tv_usec; 104} l_timeval; 105 106#define l_fd_set fd_set 107 108/* 109 * Miscellaneous 110 */ 111#define LINUX_AT_COUNT 16 /* Count of used aux entry types. 112 * Keep this synchronized with 113 * elf_linux_fixup() code. 114 */ 115struct l___sysctl_args 116{ 117 l_int *name; 118 l_int nlen; 119 void *oldval; 120 l_size_t *oldlenp; 121 void *newval; 122 l_size_t newlen; 123 l_ulong __spare[4]; 124}; 125 126/* Resource limits */ 127#define LINUX_RLIMIT_CPU 0 128#define LINUX_RLIMIT_FSIZE 1 129#define LINUX_RLIMIT_DATA 2 130#define LINUX_RLIMIT_STACK 3 131#define LINUX_RLIMIT_CORE 4 132#define LINUX_RLIMIT_RSS 5 133#define LINUX_RLIMIT_NPROC 6 134#define LINUX_RLIMIT_NOFILE 7 135#define LINUX_RLIMIT_MEMLOCK 8 136#define LINUX_RLIMIT_AS 9 /* Address space limit */ 137 138#define LINUX_RLIM_NLIMITS 10 139 140struct l_rlimit { 141 l_ulong rlim_cur; 142 l_ulong rlim_max; 143}; 144 145/* mmap options */ 146#define LINUX_MAP_SHARED 0x0001 147#define LINUX_MAP_PRIVATE 0x0002 148#define LINUX_MAP_FIXED 0x0010 149#define LINUX_MAP_ANON 0x0020 150#define LINUX_MAP_GROWSDOWN 0x0100 151 152struct l_mmap_argv { 153 l_uintptr_t addr; 154 l_size_t len; 155 l_int prot; 156 l_int flags; 157 l_int fd; 158 l_off_t pgoff; 159} __packed; 160 161/* 162 * stat family of syscalls 163 */ 164struct l_timespec { 165 l_time_t tv_sec; 166 l_long tv_nsec; 167}; 168 169struct l_newstat { 170 l_ushort st_dev; 171 l_ushort __pad1; 172 l_ulong st_ino; 173 l_ushort st_mode; 174 l_ushort st_nlink; 175 l_ushort st_uid; 176 l_ushort st_gid; 177 l_ushort st_rdev; 178 l_ushort __pad2; 179 l_ulong st_size; 180 l_ulong st_blksize; 181 l_ulong st_blocks; 182 struct l_timespec st_atim; 183 struct l_timespec st_mtim; 184 struct l_timespec st_ctim; 185 l_ulong __unused4; 186 l_ulong __unused5; 187}; 188 189struct l_stat { 190 l_ushort st_dev; 191 l_ulong st_ino; 192 l_ushort st_mode; 193 l_ushort st_nlink; 194 l_ushort st_uid; 195 l_ushort st_gid; 196 l_ushort st_rdev; 197 l_long st_size; 198 struct l_timespec st_atim; 199 struct l_timespec st_mtim; 200 struct l_timespec st_ctim; 201 l_long st_blksize; 202 l_long st_blocks; 203 l_ulong st_flags; 204 l_ulong st_gen; 205}; 206 207struct l_stat64 { 208 l_ushort st_dev; 209 u_char __pad0[10]; 210 l_ulong __st_ino; 211 l_uint st_mode; 212 l_uint st_nlink; 213 l_ulong st_uid; 214 l_ulong st_gid; 215 l_ushort st_rdev; 216 u_char __pad3[10]; 217 l_longlong st_size; 218 l_ulong st_blksize; 219 l_ulong st_blocks; 220 l_ulong __pad4; 221 struct l_timespec st_atim; 222 struct l_timespec st_mtim; 223 struct l_timespec st_ctim; 224 l_ulonglong st_ino; 225}; 226 227struct l_statfs64 { 228 l_int f_type; 229 l_int f_bsize; 230 uint64_t f_blocks; 231 uint64_t f_bfree; 232 uint64_t f_bavail; 233 uint64_t f_files; 234 uint64_t f_ffree; 235 l_fsid_t f_fsid; 236 l_int f_namelen; 237 l_int f_spare[6]; 238}; 239 240/* 241 * Signalling 242 */ 243#define LINUX_SIGHUP 1 244#define LINUX_SIGINT 2 245#define LINUX_SIGQUIT 3 246#define LINUX_SIGILL 4 247#define LINUX_SIGTRAP 5 248#define LINUX_SIGABRT 6 249#define LINUX_SIGIOT LINUX_SIGABRT 250#define LINUX_SIGBUS 7 251#define LINUX_SIGFPE 8 252#define LINUX_SIGKILL 9 253#define LINUX_SIGUSR1 10 254#define LINUX_SIGSEGV 11 255#define LINUX_SIGUSR2 12 256#define LINUX_SIGPIPE 13 257#define LINUX_SIGALRM 14 258#define LINUX_SIGTERM 15 259#define LINUX_SIGSTKFLT 16 260#define LINUX_SIGCHLD 17 261#define LINUX_SIGCONT 18 262#define LINUX_SIGSTOP 19 263#define LINUX_SIGTSTP 20 264#define LINUX_SIGTTIN 21 265#define LINUX_SIGTTOU 22 266#define LINUX_SIGURG 23 267#define LINUX_SIGXCPU 24 268#define LINUX_SIGXFSZ 25 269#define LINUX_SIGVTALRM 26 270#define LINUX_SIGPROF 27 271#define LINUX_SIGWINCH 28 272#define LINUX_SIGIO 29 273#define LINUX_SIGPOLL LINUX_SIGIO 274#define LINUX_SIGPWR 30 275#define LINUX_SIGSYS 31 276#define LINUX_SIGRTMIN 32 277 278#define LINUX_SIGTBLSZ 31 279#define LINUX_NSIG_WORDS 2 280#define LINUX_NBPW 32 281#define LINUX_NSIG (LINUX_NBPW * LINUX_NSIG_WORDS) 282 283/* sigaction flags */ 284#define LINUX_SA_NOCLDSTOP 0x00000001 285#define LINUX_SA_NOCLDWAIT 0x00000002 286#define LINUX_SA_SIGINFO 0x00000004 287#define LINUX_SA_RESTORER 0x04000000 288#define LINUX_SA_ONSTACK 0x08000000 289#define LINUX_SA_RESTART 0x10000000 290#define LINUX_SA_INTERRUPT 0x20000000 291#define LINUX_SA_NOMASK 0x40000000 292#define LINUX_SA_ONESHOT 0x80000000 293 294/* sigprocmask actions */ 295#define LINUX_SIG_BLOCK 0 296#define LINUX_SIG_UNBLOCK 1 297#define LINUX_SIG_SETMASK 2 298 299/* sigset_t macros */ 300#define LINUX_SIGEMPTYSET(set) (set).__bits[0] = (set).__bits[1] = 0 301#define LINUX_SIGISMEMBER(set, sig) SIGISMEMBER(set, sig) 302#define LINUX_SIGADDSET(set, sig) SIGADDSET(set, sig) 303 304/* sigaltstack */ 305#define LINUX_MINSIGSTKSZ 2048 306#define LINUX_SS_ONSTACK 1 307#define LINUX_SS_DISABLE 2 308 309int linux_to_bsd_sigaltstack(int lsa); 310int bsd_to_linux_sigaltstack(int bsa); 311 312typedef void (*l_handler_t)(l_int); 313typedef l_ulong l_osigset_t; 314 315typedef struct { 316 l_uint __bits[LINUX_NSIG_WORDS]; 317} l_sigset_t; 318 319typedef struct { 320 l_handler_t lsa_handler; 321 l_osigset_t lsa_mask; 322 l_ulong lsa_flags; 323 void (*lsa_restorer)(void); 324} l_osigaction_t; 325 326typedef struct { 327 l_handler_t lsa_handler; 328 l_ulong lsa_flags; 329 void (*lsa_restorer)(void); 330 l_sigset_t lsa_mask; 331} l_sigaction_t; 332 333typedef struct { 334 void *ss_sp; 335 l_int ss_flags; 336 l_size_t ss_size; 337} l_stack_t; 338 339/* The Linux sigcontext, pretty much a standard 386 trapframe. */ 340struct l_sigcontext { 341 l_int sc_gs; 342 l_int sc_fs; 343 l_int sc_es; 344 l_int sc_ds; 345 l_int sc_edi; 346 l_int sc_esi; 347 l_int sc_ebp; 348 l_int sc_esp; 349 l_int sc_ebx; 350 l_int sc_edx; 351 l_int sc_ecx; 352 l_int sc_eax; 353 l_int sc_trapno; 354 l_int sc_err; 355 l_int sc_eip; 356 l_int sc_cs; 357 l_int sc_eflags; 358 l_int sc_esp_at_signal; 359 l_int sc_ss; 360 l_int sc_387; 361 l_int sc_mask; 362 l_int sc_cr2; 363}; 364 365struct l_ucontext { 366 l_ulong uc_flags; 367 void *uc_link; 368 l_stack_t uc_stack; 369 struct l_sigcontext uc_mcontext; 370 l_sigset_t uc_sigmask; 371}; 372 373#define LINUX_SI_MAX_SIZE 128 374#define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 375 376typedef union l_sigval { 377 l_int sival_int; 378 l_uintptr_t sival_ptr; 379} l_sigval_t; 380 381typedef struct l_siginfo { 382 l_int lsi_signo; 383 l_int lsi_errno; 384 l_int lsi_code; 385 union { 386 l_int _pad[LINUX_SI_PAD_SIZE]; 387 388 struct { 389 l_pid_t _pid; 390 l_uid_t _uid; 391 } _kill; 392 393 struct { 394 l_timer_t _tid; 395 l_int _overrun; 396 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 397 l_sigval_t _sigval; 398 l_int _sys_private; 399 } _timer; 400 401 struct { 402 l_pid_t _pid; /* sender's pid */ 403 l_uid_t _uid; /* sender's uid */ 404 l_sigval_t _sigval; 405 } _rt; 406 407 struct { 408 l_pid_t _pid; /* which child */ 409 l_uid_t _uid; /* sender's uid */ 410 l_int _status; /* exit code */ 411 l_clock_t _utime; 412 l_clock_t _stime; 413 } _sigchld; 414 415 struct { 416 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 417 } _sigfault; 418 419 struct { 420 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 421 l_int _fd; 422 } _sigpoll; 423 } _sifields; 424} l_siginfo_t; 425 426#define lsi_pid _sifields._kill._pid 427#define lsi_uid _sifields._kill._uid 428#define lsi_tid _sifields._timer._tid 429#define lsi_overrun _sifields._timer._overrun 430#define lsi_sys_private _sifields._timer._sys_private 431#define lsi_status _sifields._sigchld._status 432#define lsi_utime _sifields._sigchld._utime 433#define lsi_stime _sifields._sigchld._stime 434#define lsi_value _sifields._rt._sigval 435#define lsi_int _sifields._rt._sigval.sival_int 436#define lsi_ptr _sifields._rt._sigval.sival_ptr 437#define lsi_addr _sifields._sigfault._addr 438#define lsi_band _sifields._sigpoll._band 439#define lsi_fd _sifields._sigpoll._fd 440 441struct l_fpreg { 442 u_int16_t significand[4]; 443 u_int16_t exponent; 444}; 445 446struct l_fpxreg { 447 u_int16_t significand[4]; 448 u_int16_t exponent; 449 u_int16_t padding[3]; 450}; 451 452struct l_xmmreg { 453 u_int32_t element[4]; 454}; 455 456struct l_fpstate { 457 /* Regular FPU environment */ 458 u_int32_t cw; 459 u_int32_t sw; 460 u_int32_t tag; 461 u_int32_t ipoff; 462 u_int32_t cssel; 463 u_int32_t dataoff; 464 u_int32_t datasel; 465 struct l_fpreg _st[8]; 466 u_int16_t status; 467 u_int16_t magic; /* 0xffff = regular FPU data */ 468 469 /* FXSR FPU environment */ 470 u_int32_t _fxsr_env[6]; /* env is ignored. */ 471 u_int32_t mxcsr; 472 u_int32_t reserved; 473 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 474 struct l_xmmreg _xmm[8]; 475 u_int32_t padding[56]; 476}; 477 478/* 479 * We make the stack look like Linux expects it when calling a signal 480 * handler, but use the BSD way of calling the handler and sigreturn(). 481 * This means that we need to pass the pointer to the handler too. 482 * It is appended to the frame to not interfere with the rest of it. 483 */ 484struct l_sigframe { 485 l_int sf_sig; 486 struct l_sigcontext sf_sc; 487 struct l_fpstate sf_fpstate; 488 l_uint sf_extramask[LINUX_NSIG_WORDS-1]; 489 l_handler_t sf_handler; 490}; 491 492struct l_rt_sigframe { 493 l_int sf_sig; 494 l_siginfo_t *sf_siginfo; 495 struct l_ucontext *sf_ucontext; 496 l_siginfo_t sf_si; 497 struct l_ucontext sf_sc; 498 l_handler_t sf_handler; 499}; 500 501extern struct sysentvec linux_sysvec; 502extern struct sysentvec elf_linux_sysvec; 503 504/* 505 * open/fcntl flags 506 */ 507#define LINUX_O_RDONLY 00000000 508#define LINUX_O_WRONLY 00000001 509#define LINUX_O_RDWR 00000002 510#define LINUX_O_ACCMODE 00000003 511#define LINUX_O_CREAT 00000100 512#define LINUX_O_EXCL 00000200 513#define LINUX_O_NOCTTY 00000400 514#define LINUX_O_TRUNC 00001000 515#define LINUX_O_APPEND 00002000 516#define LINUX_O_NONBLOCK 00004000 517#define LINUX_O_NDELAY LINUX_O_NONBLOCK 518#define LINUX_O_SYNC 00010000 519#define LINUX_FASYNC 00020000 520#define LINUX_O_DIRECT 00040000 /* Direct disk access hint */ 521#define LINUX_O_LARGEFILE 00100000 522#define LINUX_O_DIRECTORY 00200000 /* Must be a directory */ 523#define LINUX_O_NOFOLLOW 00400000 /* Do not follow links */ 524#define LINUX_O_NOATIME 01000000 525#define LINUX_O_CLOEXEC 02000000 526 527#define LINUX_F_DUPFD 0 528#define LINUX_F_GETFD 1 529#define LINUX_F_SETFD 2 530#define LINUX_F_GETFL 3 531#define LINUX_F_SETFL 4 532#define LINUX_F_GETLK 5 533#define LINUX_F_SETLK 6 534#define LINUX_F_SETLKW 7 535#define LINUX_F_SETOWN 8 536#define LINUX_F_GETOWN 9 537 538#define LINUX_F_GETLK64 12 539#define LINUX_F_SETLK64 13 540#define LINUX_F_SETLKW64 14 541 542#define LINUX_F_RDLCK 0 543#define LINUX_F_WRLCK 1 544#define LINUX_F_UNLCK 2 545 546union l_semun { 547 l_int val; 548 struct l_semid_ds *buf; 549 l_ushort *array; 550 struct l_seminfo *__buf; 551 void *__pad; 552}; 553 554/* 555 * Socket defines 556 */ 557#define LINUX_SOL_SOCKET 1 558#define LINUX_SOL_IP 0 559#define LINUX_SOL_IPX 256 560#define LINUX_SOL_AX25 257 561#define LINUX_SOL_TCP 6 562#define LINUX_SOL_UDP 17 563 564#define LINUX_SO_DEBUG 1 565#define LINUX_SO_REUSEADDR 2 566#define LINUX_SO_TYPE 3 567#define LINUX_SO_ERROR 4 568#define LINUX_SO_DONTROUTE 5 569#define LINUX_SO_BROADCAST 6 570#define LINUX_SO_SNDBUF 7 571#define LINUX_SO_RCVBUF 8 572#define LINUX_SO_KEEPALIVE 9 573#define LINUX_SO_OOBINLINE 10 574#define LINUX_SO_NO_CHECK 11 575#define LINUX_SO_PRIORITY 12 576#define LINUX_SO_LINGER 13 577#define LINUX_SO_PEERCRED 17 578#define LINUX_SO_RCVLOWAT 18 579#define LINUX_SO_SNDLOWAT 19 580#define LINUX_SO_RCVTIMEO 20 581#define LINUX_SO_SNDTIMEO 21 582#define LINUX_SO_TIMESTAMP 29 583#define LINUX_SO_ACCEPTCONN 30 584 585struct l_sockaddr { 586 l_ushort sa_family; 587 char sa_data[14]; 588}; 589 590struct l_msghdr { 591 l_uintptr_t msg_name; 592 l_int msg_namelen; 593 l_uintptr_t msg_iov; 594 l_size_t msg_iovlen; 595 l_uintptr_t msg_control; 596 l_size_t msg_controllen; 597 l_uint msg_flags; 598}; 599 600struct l_cmsghdr { 601 l_size_t cmsg_len; 602 l_int cmsg_level; 603 l_int cmsg_type; 604}; 605 606struct l_ifmap { 607 l_ulong mem_start; 608 l_ulong mem_end; 609 l_ushort base_addr; 610 u_char irq; 611 u_char dma; 612 u_char port; 613}; 614 615#define LINUX_IFHWADDRLEN 6 616#define LINUX_IFNAMSIZ 16 617 618struct l_ifreq { 619 union { 620 char ifrn_name[LINUX_IFNAMSIZ]; 621 } ifr_ifrn; 622 623 union { 624 struct l_sockaddr ifru_addr; 625 struct l_sockaddr ifru_dstaddr; 626 struct l_sockaddr ifru_broadaddr; 627 struct l_sockaddr ifru_netmask; 628 struct l_sockaddr ifru_hwaddr; 629 l_short ifru_flags[1]; 630 l_int ifru_metric; 631 l_int ifru_mtu; 632 struct l_ifmap ifru_map; 633 char ifru_slave[LINUX_IFNAMSIZ]; 634 l_caddr_t ifru_data; 635 } ifr_ifru; 636}; 637 638#define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 639#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 640 641/* 642 * poll() 643 */ 644#define LINUX_POLLIN 0x0001 645#define LINUX_POLLPRI 0x0002 646#define LINUX_POLLOUT 0x0004 647#define LINUX_POLLERR 0x0008 648#define LINUX_POLLHUP 0x0010 649#define LINUX_POLLNVAL 0x0020 650#define LINUX_POLLRDNORM 0x0040 651#define LINUX_POLLRDBAND 0x0080 652#define LINUX_POLLWRNORM 0x0100 653#define LINUX_POLLWRBAND 0x0200 654#define LINUX_POLLMSG 0x0400 655 656struct l_pollfd { 657 l_int fd; 658 l_short events; 659 l_short revents; 660}; 661 662struct l_user_desc { 663 l_uint entry_number; 664 l_uint base_addr; 665 l_uint limit; 666 l_uint seg_32bit:1; 667 l_uint contents:2; 668 l_uint read_exec_only:1; 669 l_uint limit_in_pages:1; 670 l_uint seg_not_present:1; 671 l_uint useable:1; 672}; 673 674struct l_desc_struct { 675 unsigned long a, b; 676}; 677 678 679#define LINUX_LOWERWORD 0x0000ffff 680 681/* 682 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 683 * These convert Linux user space descriptor to machine one. 684 */ 685#define LINUX_LDT_entry_a(info) \ 686 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 687 ((info)->limit & LINUX_LOWERWORD)) 688 689#define LINUX_ENTRY_B_READ_EXEC_ONLY 9 690#define LINUX_ENTRY_B_CONTENTS 10 691#define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 692#define LINUX_ENTRY_B_BASE_ADDR 16 693#define LINUX_ENTRY_B_USEABLE 20 694#define LINUX_ENTRY_B_SEG32BIT 22 695#define LINUX_ENTRY_B_LIMIT 23 696 697#define LINUX_LDT_entry_b(info) \ 698 (((info)->base_addr & 0xff000000) | \ 699 ((info)->limit & 0xf0000) | \ 700 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 701 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 702 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 703 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 704 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 705 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 706 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 707 708#define LINUX_LDT_empty(info) \ 709 ((info)->base_addr == 0 && \ 710 (info)->limit == 0 && \ 711 (info)->contents == 0 && \ 712 (info)->seg_not_present == 1 && \ 713 (info)->read_exec_only == 1 && \ 714 (info)->seg_32bit == 0 && \ 715 (info)->limit_in_pages == 0 && \ 716 (info)->useable == 0) 717 718/* 719 * Macros for converting segments. 720 * They do the same as those in arch/i386/kernel/process.c in Linux. 721 */ 722#define LINUX_GET_BASE(desc) \ 723 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 724 (((desc)->b << 16) & 0x00ff0000) | \ 725 ((desc)->b & 0xff000000)) 726 727#define LINUX_GET_LIMIT(desc) \ 728 (((desc)->a & LINUX_LOWERWORD) | \ 729 ((desc)->b & 0xf0000)) 730 731#define LINUX_GET_32BIT(desc) \ 732 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 733#define LINUX_GET_CONTENTS(desc) \ 734 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 735#define LINUX_GET_WRITABLE(desc) \ 736 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 737#define LINUX_GET_LIMIT_PAGES(desc) \ 738 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 739#define LINUX_GET_PRESENT(desc) \ 740 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 741#define LINUX_GET_USEABLE(desc) \ 742 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 743 744#define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r)) 745 746/* robust futexes */ 747struct linux_robust_list { 748 struct linux_robust_list *next; 749}; 750 751struct linux_robust_list_head { 752 struct linux_robust_list list; 753 l_long futex_offset; 754 struct linux_robust_list *pending_list; 755}; 756 757#endif /* !_I386_LINUX_H_ */ 758