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