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): "#nm"("fmt")\n", (long)td->td_proc->p_pid 44 #define LMSG(fmt) "linux(%ld): "fmt"\n", (long)td->td_proc->p_pid 45 #define LINUX_DTRACE linuxulator 46 47 #ifdef MALLOC_DECLARE 48 MALLOC_DECLARE(M_LINUX); 49 #endif 50 51 #define LINUX_SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) 52 #define LINUX_USRSTACK LINUX_SHAREDPAGE 53 54 #define PTRIN(v) (void *)(v) 55 #define PTROUT(v) (l_uintptr_t)(v) 56 57 /* 58 * Provide a separate set of types for the Linux types. 59 */ 60 typedef int l_int; 61 typedef int32_t l_long; 62 typedef int64_t l_longlong; 63 typedef short l_short; 64 typedef unsigned int l_uint; 65 typedef uint32_t l_ulong; 66 typedef uint64_t l_ulonglong; 67 typedef unsigned short l_ushort; 68 69 typedef char *l_caddr_t; 70 typedef l_ulong l_uintptr_t; 71 typedef l_long l_clock_t; 72 typedef l_int l_daddr_t; 73 typedef l_ushort l_dev_t; 74 typedef l_uint l_gid_t; 75 typedef l_ushort l_gid16_t; 76 typedef l_ulong l_ino_t; 77 typedef l_int l_key_t; 78 typedef l_longlong l_loff_t; 79 typedef l_ushort l_mode_t; 80 typedef l_long l_off_t; 81 typedef l_int l_pid_t; 82 typedef l_uint l_size_t; 83 typedef l_long l_suseconds_t; 84 typedef l_long l_time_t; 85 typedef l_uint l_uid_t; 86 typedef l_ushort l_uid16_t; 87 typedef l_int l_timer_t; 88 typedef l_int l_mqd_t; 89 90 typedef struct { 91 l_int val[2]; 92 } l_fsid_t; 93 94 typedef struct { 95 l_time_t tv_sec; 96 l_suseconds_t tv_usec; 97 } l_timeval; 98 99 #define l_fd_set fd_set 100 101 /* 102 * Miscellaneous 103 */ 104 #define LINUX_AT_COUNT 16 /* Count of used aux entry types. 105 * Keep this synchronized with 106 * elf_linux_fixup() code. 107 */ 108 struct l___sysctl_args 109 { 110 l_int *name; 111 l_int nlen; 112 void *oldval; 113 l_size_t *oldlenp; 114 void *newval; 115 l_size_t newlen; 116 l_ulong __spare[4]; 117 }; 118 119 /* Resource limits */ 120 #define LINUX_RLIMIT_CPU 0 121 #define LINUX_RLIMIT_FSIZE 1 122 #define LINUX_RLIMIT_DATA 2 123 #define LINUX_RLIMIT_STACK 3 124 #define LINUX_RLIMIT_CORE 4 125 #define LINUX_RLIMIT_RSS 5 126 #define LINUX_RLIMIT_NPROC 6 127 #define LINUX_RLIMIT_NOFILE 7 128 #define LINUX_RLIMIT_MEMLOCK 8 129 #define LINUX_RLIMIT_AS 9 /* Address space limit */ 130 131 #define LINUX_RLIM_NLIMITS 10 132 133 struct l_rlimit { 134 l_ulong rlim_cur; 135 l_ulong rlim_max; 136 }; 137 138 /* mmap options */ 139 #define LINUX_MAP_SHARED 0x0001 140 #define LINUX_MAP_PRIVATE 0x0002 141 #define LINUX_MAP_FIXED 0x0010 142 #define LINUX_MAP_ANON 0x0020 143 #define LINUX_MAP_GROWSDOWN 0x0100 144 145 struct l_mmap_argv { 146 l_uintptr_t addr; 147 l_size_t len; 148 l_int prot; 149 l_int flags; 150 l_int fd; 151 l_off_t pgoff; 152 } __packed; 153 154 /* 155 * stat family of syscalls 156 */ 157 struct l_timespec { 158 l_time_t tv_sec; 159 l_long tv_nsec; 160 }; 161 162 struct l_newstat { 163 l_ushort st_dev; 164 l_ushort __pad1; 165 l_ulong st_ino; 166 l_ushort st_mode; 167 l_ushort st_nlink; 168 l_ushort st_uid; 169 l_ushort st_gid; 170 l_ushort st_rdev; 171 l_ushort __pad2; 172 l_ulong st_size; 173 l_ulong st_blksize; 174 l_ulong st_blocks; 175 struct l_timespec st_atim; 176 struct l_timespec st_mtim; 177 struct l_timespec st_ctim; 178 l_ulong __unused4; 179 l_ulong __unused5; 180 }; 181 182 struct l_stat { 183 l_ushort st_dev; 184 l_ulong st_ino; 185 l_ushort st_mode; 186 l_ushort st_nlink; 187 l_ushort st_uid; 188 l_ushort st_gid; 189 l_ushort st_rdev; 190 l_long st_size; 191 struct l_timespec st_atim; 192 struct l_timespec st_mtim; 193 struct l_timespec st_ctim; 194 l_long st_blksize; 195 l_long st_blocks; 196 l_ulong st_flags; 197 l_ulong st_gen; 198 }; 199 200 struct l_stat64 { 201 l_ushort st_dev; 202 u_char __pad0[10]; 203 l_ulong __st_ino; 204 l_uint st_mode; 205 l_uint st_nlink; 206 l_ulong st_uid; 207 l_ulong st_gid; 208 l_ushort st_rdev; 209 u_char __pad3[10]; 210 l_longlong st_size; 211 l_ulong st_blksize; 212 l_ulong st_blocks; 213 l_ulong __pad4; 214 struct l_timespec st_atim; 215 struct l_timespec st_mtim; 216 struct l_timespec st_ctim; 217 l_ulonglong st_ino; 218 }; 219 220 struct l_statfs64 { 221 l_int f_type; 222 l_int f_bsize; 223 uint64_t f_blocks; 224 uint64_t f_bfree; 225 uint64_t f_bavail; 226 uint64_t f_files; 227 uint64_t f_ffree; 228 l_fsid_t f_fsid; 229 l_int f_namelen; 230 l_int f_spare[6]; 231 }; 232 233 /* 234 * Signalling 235 */ 236 #define LINUX_SIGHUP 1 237 #define LINUX_SIGINT 2 238 #define LINUX_SIGQUIT 3 239 #define LINUX_SIGILL 4 240 #define LINUX_SIGTRAP 5 241 #define LINUX_SIGABRT 6 242 #define LINUX_SIGIOT LINUX_SIGABRT 243 #define LINUX_SIGBUS 7 244 #define LINUX_SIGFPE 8 245 #define LINUX_SIGKILL 9 246 #define LINUX_SIGUSR1 10 247 #define LINUX_SIGSEGV 11 248 #define LINUX_SIGUSR2 12 249 #define LINUX_SIGPIPE 13 250 #define LINUX_SIGALRM 14 251 #define LINUX_SIGTERM 15 252 #define LINUX_SIGSTKFLT 16 253 #define LINUX_SIGCHLD 17 254 #define LINUX_SIGCONT 18 255 #define LINUX_SIGSTOP 19 256 #define LINUX_SIGTSTP 20 257 #define LINUX_SIGTTIN 21 258 #define LINUX_SIGTTOU 22 259 #define LINUX_SIGURG 23 260 #define LINUX_SIGXCPU 24 261 #define LINUX_SIGXFSZ 25 262 #define LINUX_SIGVTALRM 26 263 #define LINUX_SIGPROF 27 264 #define LINUX_SIGWINCH 28 265 #define LINUX_SIGIO 29 266 #define LINUX_SIGPOLL LINUX_SIGIO 267 #define LINUX_SIGPWR 30 268 #define LINUX_SIGSYS 31 269 #define LINUX_SIGRTMIN 32 270 271 #define LINUX_SIGTBLSZ 31 272 #define LINUX_NSIG_WORDS 2 273 #define LINUX_NBPW 32 274 #define LINUX_NSIG (LINUX_NBPW * LINUX_NSIG_WORDS) 275 276 /* sigaction flags */ 277 #define LINUX_SA_NOCLDSTOP 0x00000001 278 #define LINUX_SA_NOCLDWAIT 0x00000002 279 #define LINUX_SA_SIGINFO 0x00000004 280 #define LINUX_SA_RESTORER 0x04000000 281 #define LINUX_SA_ONSTACK 0x08000000 282 #define LINUX_SA_RESTART 0x10000000 283 #define LINUX_SA_INTERRUPT 0x20000000 284 #define LINUX_SA_NOMASK 0x40000000 285 #define LINUX_SA_ONESHOT 0x80000000 286 287 /* sigprocmask actions */ 288 #define LINUX_SIG_BLOCK 0 289 #define LINUX_SIG_UNBLOCK 1 290 #define LINUX_SIG_SETMASK 2 291 292 /* sigset_t macros */ 293 #define LINUX_SIGEMPTYSET(set) (set).__bits[0] = (set).__bits[1] = 0 294 #define LINUX_SIGISMEMBER(set, sig) SIGISMEMBER(set, sig) 295 #define LINUX_SIGADDSET(set, sig) SIGADDSET(set, sig) 296 297 /* sigaltstack */ 298 #define LINUX_MINSIGSTKSZ 2048 299 #define LINUX_SS_ONSTACK 1 300 #define LINUX_SS_DISABLE 2 301 302 int linux_to_bsd_sigaltstack(int lsa); 303 int bsd_to_linux_sigaltstack(int bsa); 304 305 typedef void (*l_handler_t)(l_int); 306 typedef l_ulong l_osigset_t; 307 308 typedef struct { 309 l_uint __bits[LINUX_NSIG_WORDS]; 310 } l_sigset_t; 311 312 typedef struct { 313 l_handler_t lsa_handler; 314 l_osigset_t lsa_mask; 315 l_ulong lsa_flags; 316 void (*lsa_restorer)(void); 317 } l_osigaction_t; 318 319 typedef struct { 320 l_handler_t lsa_handler; 321 l_ulong lsa_flags; 322 void (*lsa_restorer)(void); 323 l_sigset_t lsa_mask; 324 } l_sigaction_t; 325 326 typedef struct { 327 void *ss_sp; 328 l_int ss_flags; 329 l_size_t ss_size; 330 } l_stack_t; 331 332 /* The Linux sigcontext, pretty much a standard 386 trapframe. */ 333 struct l_sigcontext { 334 l_int sc_gs; 335 l_int sc_fs; 336 l_int sc_es; 337 l_int sc_ds; 338 l_int sc_edi; 339 l_int sc_esi; 340 l_int sc_ebp; 341 l_int sc_esp; 342 l_int sc_ebx; 343 l_int sc_edx; 344 l_int sc_ecx; 345 l_int sc_eax; 346 l_int sc_trapno; 347 l_int sc_err; 348 l_int sc_eip; 349 l_int sc_cs; 350 l_int sc_eflags; 351 l_int sc_esp_at_signal; 352 l_int sc_ss; 353 l_int sc_387; 354 l_int sc_mask; 355 l_int sc_cr2; 356 }; 357 358 struct l_ucontext { 359 l_ulong uc_flags; 360 void *uc_link; 361 l_stack_t uc_stack; 362 struct l_sigcontext uc_mcontext; 363 l_sigset_t uc_sigmask; 364 }; 365 366 #define LINUX_SI_MAX_SIZE 128 367 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 368 369 typedef union l_sigval { 370 l_int sival_int; 371 l_uintptr_t sival_ptr; 372 } l_sigval_t; 373 374 typedef struct l_siginfo { 375 l_int lsi_signo; 376 l_int lsi_errno; 377 l_int lsi_code; 378 union { 379 l_int _pad[LINUX_SI_PAD_SIZE]; 380 381 struct { 382 l_pid_t _pid; 383 l_uid_t _uid; 384 } _kill; 385 386 struct { 387 l_timer_t _tid; 388 l_int _overrun; 389 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 390 l_sigval_t _sigval; 391 l_int _sys_private; 392 } _timer; 393 394 struct { 395 l_pid_t _pid; /* sender's pid */ 396 l_uid_t _uid; /* sender's uid */ 397 l_sigval_t _sigval; 398 } _rt; 399 400 struct { 401 l_pid_t _pid; /* which child */ 402 l_uid_t _uid; /* sender's uid */ 403 l_int _status; /* exit code */ 404 l_clock_t _utime; 405 l_clock_t _stime; 406 } _sigchld; 407 408 struct { 409 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 410 } _sigfault; 411 412 struct { 413 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 414 l_int _fd; 415 } _sigpoll; 416 } _sifields; 417 } l_siginfo_t; 418 419 #define lsi_pid _sifields._kill._pid 420 #define lsi_uid _sifields._kill._uid 421 #define lsi_tid _sifields._timer._tid 422 #define lsi_overrun _sifields._timer._overrun 423 #define lsi_sys_private _sifields._timer._sys_private 424 #define lsi_status _sifields._sigchld._status 425 #define lsi_utime _sifields._sigchld._utime 426 #define lsi_stime _sifields._sigchld._stime 427 #define lsi_value _sifields._rt._sigval 428 #define lsi_int _sifields._rt._sigval.sival_int 429 #define lsi_ptr _sifields._rt._sigval.sival_ptr 430 #define lsi_addr _sifields._sigfault._addr 431 #define lsi_band _sifields._sigpoll._band 432 #define lsi_fd _sifields._sigpoll._fd 433 434 struct l_fpreg { 435 u_int16_t significand[4]; 436 u_int16_t exponent; 437 }; 438 439 struct l_fpxreg { 440 u_int16_t significand[4]; 441 u_int16_t exponent; 442 u_int16_t padding[3]; 443 }; 444 445 struct l_xmmreg { 446 u_int32_t element[4]; 447 }; 448 449 struct l_fpstate { 450 /* Regular FPU environment */ 451 u_int32_t cw; 452 u_int32_t sw; 453 u_int32_t tag; 454 u_int32_t ipoff; 455 u_int32_t cssel; 456 u_int32_t dataoff; 457 u_int32_t datasel; 458 struct l_fpreg _st[8]; 459 u_int16_t status; 460 u_int16_t magic; /* 0xffff = regular FPU data */ 461 462 /* FXSR FPU environment */ 463 u_int32_t _fxsr_env[6]; /* env is ignored. */ 464 u_int32_t mxcsr; 465 u_int32_t reserved; 466 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 467 struct l_xmmreg _xmm[8]; 468 u_int32_t padding[56]; 469 }; 470 471 /* 472 * We make the stack look like Linux expects it when calling a signal 473 * handler, but use the BSD way of calling the handler and sigreturn(). 474 * This means that we need to pass the pointer to the handler too. 475 * It is appended to the frame to not interfere with the rest of it. 476 */ 477 struct l_sigframe { 478 l_int sf_sig; 479 struct l_sigcontext sf_sc; 480 struct l_fpstate sf_fpstate; 481 l_uint sf_extramask[LINUX_NSIG_WORDS-1]; 482 l_handler_t sf_handler; 483 }; 484 485 struct l_rt_sigframe { 486 l_int sf_sig; 487 l_siginfo_t *sf_siginfo; 488 struct l_ucontext *sf_ucontext; 489 l_siginfo_t sf_si; 490 struct l_ucontext sf_sc; 491 l_handler_t sf_handler; 492 }; 493 494 extern struct sysentvec linux_sysvec; 495 extern struct sysentvec elf_linux_sysvec; 496 497 /* 498 * open/fcntl flags 499 */ 500 #define LINUX_O_RDONLY 00000000 501 #define LINUX_O_WRONLY 00000001 502 #define LINUX_O_RDWR 00000002 503 #define LINUX_O_ACCMODE 00000003 504 #define LINUX_O_CREAT 00000100 505 #define LINUX_O_EXCL 00000200 506 #define LINUX_O_NOCTTY 00000400 507 #define LINUX_O_TRUNC 00001000 508 #define LINUX_O_APPEND 00002000 509 #define LINUX_O_NONBLOCK 00004000 510 #define LINUX_O_NDELAY LINUX_O_NONBLOCK 511 #define LINUX_O_SYNC 00010000 512 #define LINUX_FASYNC 00020000 513 #define LINUX_O_DIRECT 00040000 /* Direct disk access hint */ 514 #define LINUX_O_LARGEFILE 00100000 515 #define LINUX_O_DIRECTORY 00200000 /* Must be a directory */ 516 #define LINUX_O_NOFOLLOW 00400000 /* Do not follow links */ 517 #define LINUX_O_NOATIME 01000000 518 #define LINUX_O_CLOEXEC 02000000 519 520 #define LINUX_F_DUPFD 0 521 #define LINUX_F_GETFD 1 522 #define LINUX_F_SETFD 2 523 #define LINUX_F_GETFL 3 524 #define LINUX_F_SETFL 4 525 #define LINUX_F_GETLK 5 526 #define LINUX_F_SETLK 6 527 #define LINUX_F_SETLKW 7 528 #define LINUX_F_SETOWN 8 529 #define LINUX_F_GETOWN 9 530 531 #define LINUX_F_GETLK64 12 532 #define LINUX_F_SETLK64 13 533 #define LINUX_F_SETLKW64 14 534 535 #define LINUX_F_RDLCK 0 536 #define LINUX_F_WRLCK 1 537 #define LINUX_F_UNLCK 2 538 539 union l_semun { 540 l_int val; 541 struct l_semid_ds *buf; 542 l_ushort *array; 543 struct l_seminfo *__buf; 544 void *__pad; 545 }; 546 547 /* 548 * Socket defines 549 */ 550 #define LINUX_SOL_SOCKET 1 551 #define LINUX_SOL_IP 0 552 #define LINUX_SOL_IPX 256 553 #define LINUX_SOL_AX25 257 554 #define LINUX_SOL_TCP 6 555 #define LINUX_SOL_UDP 17 556 557 #define LINUX_SO_DEBUG 1 558 #define LINUX_SO_REUSEADDR 2 559 #define LINUX_SO_TYPE 3 560 #define LINUX_SO_ERROR 4 561 #define LINUX_SO_DONTROUTE 5 562 #define LINUX_SO_BROADCAST 6 563 #define LINUX_SO_SNDBUF 7 564 #define LINUX_SO_RCVBUF 8 565 #define LINUX_SO_KEEPALIVE 9 566 #define LINUX_SO_OOBINLINE 10 567 #define LINUX_SO_NO_CHECK 11 568 #define LINUX_SO_PRIORITY 12 569 #define LINUX_SO_LINGER 13 570 #define LINUX_SO_PEERCRED 17 571 #define LINUX_SO_RCVLOWAT 18 572 #define LINUX_SO_SNDLOWAT 19 573 #define LINUX_SO_RCVTIMEO 20 574 #define LINUX_SO_SNDTIMEO 21 575 #define LINUX_SO_TIMESTAMP 29 576 #define LINUX_SO_ACCEPTCONN 30 577 578 struct l_sockaddr { 579 l_ushort sa_family; 580 char sa_data[14]; 581 }; 582 583 struct l_msghdr { 584 l_uintptr_t msg_name; 585 l_int msg_namelen; 586 l_uintptr_t msg_iov; 587 l_size_t msg_iovlen; 588 l_uintptr_t msg_control; 589 l_size_t msg_controllen; 590 l_uint msg_flags; 591 }; 592 593 struct l_cmsghdr { 594 l_size_t cmsg_len; 595 l_int cmsg_level; 596 l_int cmsg_type; 597 }; 598 599 struct l_ifmap { 600 l_ulong mem_start; 601 l_ulong mem_end; 602 l_ushort base_addr; 603 u_char irq; 604 u_char dma; 605 u_char port; 606 }; 607 608 #define LINUX_IFHWADDRLEN 6 609 #define LINUX_IFNAMSIZ 16 610 611 struct l_ifreq { 612 union { 613 char ifrn_name[LINUX_IFNAMSIZ]; 614 } ifr_ifrn; 615 616 union { 617 struct l_sockaddr ifru_addr; 618 struct l_sockaddr ifru_dstaddr; 619 struct l_sockaddr ifru_broadaddr; 620 struct l_sockaddr ifru_netmask; 621 struct l_sockaddr ifru_hwaddr; 622 l_short ifru_flags[1]; 623 l_int ifru_metric; 624 l_int ifru_mtu; 625 struct l_ifmap ifru_map; 626 char ifru_slave[LINUX_IFNAMSIZ]; 627 l_caddr_t ifru_data; 628 } ifr_ifru; 629 }; 630 631 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 632 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 633 634 /* 635 * poll() 636 */ 637 #define LINUX_POLLIN 0x0001 638 #define LINUX_POLLPRI 0x0002 639 #define LINUX_POLLOUT 0x0004 640 #define LINUX_POLLERR 0x0008 641 #define LINUX_POLLHUP 0x0010 642 #define LINUX_POLLNVAL 0x0020 643 #define LINUX_POLLRDNORM 0x0040 644 #define LINUX_POLLRDBAND 0x0080 645 #define LINUX_POLLWRNORM 0x0100 646 #define LINUX_POLLWRBAND 0x0200 647 #define LINUX_POLLMSG 0x0400 648 649 struct l_pollfd { 650 l_int fd; 651 l_short events; 652 l_short revents; 653 }; 654 655 struct l_user_desc { 656 l_uint entry_number; 657 l_uint base_addr; 658 l_uint limit; 659 l_uint seg_32bit:1; 660 l_uint contents:2; 661 l_uint read_exec_only:1; 662 l_uint limit_in_pages:1; 663 l_uint seg_not_present:1; 664 l_uint useable:1; 665 }; 666 667 struct l_desc_struct { 668 unsigned long a, b; 669 }; 670 671 672 #define LINUX_LOWERWORD 0x0000ffff 673 674 /* 675 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 676 * These convert Linux user space descriptor to machine one. 677 */ 678 #define LINUX_LDT_entry_a(info) \ 679 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 680 ((info)->limit & LINUX_LOWERWORD)) 681 682 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 683 #define LINUX_ENTRY_B_CONTENTS 10 684 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 685 #define LINUX_ENTRY_B_BASE_ADDR 16 686 #define LINUX_ENTRY_B_USEABLE 20 687 #define LINUX_ENTRY_B_SEG32BIT 22 688 #define LINUX_ENTRY_B_LIMIT 23 689 690 #define LINUX_LDT_entry_b(info) \ 691 (((info)->base_addr & 0xff000000) | \ 692 ((info)->limit & 0xf0000) | \ 693 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 694 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 695 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 696 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 697 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 698 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 699 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 700 701 #define LINUX_LDT_empty(info) \ 702 ((info)->base_addr == 0 && \ 703 (info)->limit == 0 && \ 704 (info)->contents == 0 && \ 705 (info)->seg_not_present == 1 && \ 706 (info)->read_exec_only == 1 && \ 707 (info)->seg_32bit == 0 && \ 708 (info)->limit_in_pages == 0 && \ 709 (info)->useable == 0) 710 711 /* 712 * Macros for converting segments. 713 * They do the same as those in arch/i386/kernel/process.c in Linux. 714 */ 715 #define LINUX_GET_BASE(desc) \ 716 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 717 (((desc)->b << 16) & 0x00ff0000) | \ 718 ((desc)->b & 0xff000000)) 719 720 #define LINUX_GET_LIMIT(desc) \ 721 (((desc)->a & LINUX_LOWERWORD) | \ 722 ((desc)->b & 0xf0000)) 723 724 #define LINUX_GET_32BIT(desc) \ 725 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 726 #define LINUX_GET_CONTENTS(desc) \ 727 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 728 #define LINUX_GET_WRITABLE(desc) \ 729 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 730 #define LINUX_GET_LIMIT_PAGES(desc) \ 731 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 732 #define LINUX_GET_PRESENT(desc) \ 733 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 734 #define LINUX_GET_USEABLE(desc) \ 735 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 736 737 /* robust futexes */ 738 struct linux_robust_list { 739 struct linux_robust_list *next; 740 }; 741 742 struct linux_robust_list_head { 743 struct linux_robust_list list; 744 l_long futex_offset; 745 struct linux_robust_list *pending_list; 746 }; 747 748 #endif /* !_I386_LINUX_H_ */ 749