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 struct l_mmap_argv { 144 l_uintptr_t addr; 145 l_size_t len; 146 l_int prot; 147 l_int flags; 148 l_int fd; 149 l_off_t pgoff; 150 } __packed; 151 152 /* 153 * stat family of syscalls 154 */ 155 struct l_timespec { 156 l_time_t tv_sec; 157 l_long tv_nsec; 158 }; 159 160 struct l_newstat { 161 l_ushort st_dev; 162 l_ushort __pad1; 163 l_ulong st_ino; 164 l_ushort st_mode; 165 l_ushort st_nlink; 166 l_ushort st_uid; 167 l_ushort st_gid; 168 l_ushort st_rdev; 169 l_ushort __pad2; 170 l_ulong st_size; 171 l_ulong st_blksize; 172 l_ulong st_blocks; 173 struct l_timespec st_atim; 174 struct l_timespec st_mtim; 175 struct l_timespec st_ctim; 176 l_ulong __unused4; 177 l_ulong __unused5; 178 }; 179 180 struct l_stat { 181 l_ushort st_dev; 182 l_ulong st_ino; 183 l_ushort st_mode; 184 l_ushort st_nlink; 185 l_ushort st_uid; 186 l_ushort st_gid; 187 l_ushort st_rdev; 188 l_long st_size; 189 struct l_timespec st_atim; 190 struct l_timespec st_mtim; 191 struct l_timespec st_ctim; 192 l_long st_blksize; 193 l_long st_blocks; 194 l_ulong st_flags; 195 l_ulong st_gen; 196 }; 197 198 struct l_stat64 { 199 l_ushort st_dev; 200 u_char __pad0[10]; 201 l_ulong __st_ino; 202 l_uint st_mode; 203 l_uint st_nlink; 204 l_ulong st_uid; 205 l_ulong st_gid; 206 l_ushort st_rdev; 207 u_char __pad3[10]; 208 l_longlong st_size; 209 l_ulong st_blksize; 210 l_ulong st_blocks; 211 l_ulong __pad4; 212 struct l_timespec st_atim; 213 struct l_timespec st_mtim; 214 struct l_timespec st_ctim; 215 l_ulonglong st_ino; 216 }; 217 218 struct l_statfs64 { 219 l_int f_type; 220 l_int f_bsize; 221 uint64_t f_blocks; 222 uint64_t f_bfree; 223 uint64_t f_bavail; 224 uint64_t f_files; 225 uint64_t f_ffree; 226 l_fsid_t f_fsid; 227 l_int f_namelen; 228 l_int f_frsize; 229 l_int f_flags; 230 l_int f_spare[4]; 231 }; 232 233 #define LINUX_NSIG_WORDS 2 234 235 /* sigaction flags */ 236 #define LINUX_SA_NOCLDSTOP 0x00000001 237 #define LINUX_SA_NOCLDWAIT 0x00000002 238 #define LINUX_SA_SIGINFO 0x00000004 239 #define LINUX_SA_RESTORER 0x04000000 240 #define LINUX_SA_ONSTACK 0x08000000 241 #define LINUX_SA_RESTART 0x10000000 242 #define LINUX_SA_INTERRUPT 0x20000000 243 #define LINUX_SA_NOMASK 0x40000000 244 #define LINUX_SA_ONESHOT 0x80000000 245 246 /* sigprocmask actions */ 247 #define LINUX_SIG_BLOCK 0 248 #define LINUX_SIG_UNBLOCK 1 249 #define LINUX_SIG_SETMASK 2 250 251 /* sigaltstack */ 252 #define LINUX_MINSIGSTKSZ 2048 253 254 typedef void (*l_handler_t)(l_int); 255 typedef l_ulong l_osigset_t; 256 257 typedef struct { 258 l_handler_t lsa_handler; 259 l_osigset_t lsa_mask; 260 l_ulong lsa_flags; 261 void (*lsa_restorer)(void); 262 } l_osigaction_t; 263 264 typedef struct { 265 l_handler_t lsa_handler; 266 l_ulong lsa_flags; 267 void (*lsa_restorer)(void); 268 l_sigset_t lsa_mask; 269 } l_sigaction_t; 270 271 typedef struct { 272 void *ss_sp; 273 l_int ss_flags; 274 l_size_t ss_size; 275 } l_stack_t; 276 277 /* The Linux sigcontext, pretty much a standard 386 trapframe. */ 278 struct l_sigcontext { 279 l_int sc_gs; 280 l_int sc_fs; 281 l_int sc_es; 282 l_int sc_ds; 283 l_int sc_edi; 284 l_int sc_esi; 285 l_int sc_ebp; 286 l_int sc_esp; 287 l_int sc_ebx; 288 l_int sc_edx; 289 l_int sc_ecx; 290 l_int sc_eax; 291 l_int sc_trapno; 292 l_int sc_err; 293 l_int sc_eip; 294 l_int sc_cs; 295 l_int sc_eflags; 296 l_int sc_esp_at_signal; 297 l_int sc_ss; 298 l_int sc_387; 299 l_int sc_mask; 300 l_int sc_cr2; 301 }; 302 303 struct l_ucontext { 304 l_ulong uc_flags; 305 void *uc_link; 306 l_stack_t uc_stack; 307 struct l_sigcontext uc_mcontext; 308 l_sigset_t uc_sigmask; 309 }; 310 311 #define LINUX_SI_MAX_SIZE 128 312 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 313 314 typedef union l_sigval { 315 l_int sival_int; 316 l_uintptr_t sival_ptr; 317 } l_sigval_t; 318 319 typedef struct l_siginfo { 320 l_int lsi_signo; 321 l_int lsi_errno; 322 l_int lsi_code; 323 union { 324 l_int _pad[LINUX_SI_PAD_SIZE]; 325 326 struct { 327 l_pid_t _pid; 328 l_uid_t _uid; 329 } _kill; 330 331 struct { 332 l_timer_t _tid; 333 l_int _overrun; 334 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 335 l_sigval_t _sigval; 336 l_int _sys_private; 337 } _timer; 338 339 struct { 340 l_pid_t _pid; /* sender's pid */ 341 l_uid_t _uid; /* sender's uid */ 342 l_sigval_t _sigval; 343 } _rt; 344 345 struct { 346 l_pid_t _pid; /* which child */ 347 l_uid_t _uid; /* sender's uid */ 348 l_int _status; /* exit code */ 349 l_clock_t _utime; 350 l_clock_t _stime; 351 } _sigchld; 352 353 struct { 354 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 355 } _sigfault; 356 357 struct { 358 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 359 l_int _fd; 360 } _sigpoll; 361 } _sifields; 362 } l_siginfo_t; 363 364 #define lsi_pid _sifields._kill._pid 365 #define lsi_uid _sifields._kill._uid 366 #define lsi_tid _sifields._timer._tid 367 #define lsi_overrun _sifields._timer._overrun 368 #define lsi_sys_private _sifields._timer._sys_private 369 #define lsi_status _sifields._sigchld._status 370 #define lsi_utime _sifields._sigchld._utime 371 #define lsi_stime _sifields._sigchld._stime 372 #define lsi_value _sifields._rt._sigval 373 #define lsi_int _sifields._rt._sigval.sival_int 374 #define lsi_ptr _sifields._rt._sigval.sival_ptr 375 #define lsi_addr _sifields._sigfault._addr 376 #define lsi_band _sifields._sigpoll._band 377 #define lsi_fd _sifields._sigpoll._fd 378 379 struct l_fpreg { 380 u_int16_t significand[4]; 381 u_int16_t exponent; 382 }; 383 384 struct l_fpxreg { 385 u_int16_t significand[4]; 386 u_int16_t exponent; 387 u_int16_t padding[3]; 388 }; 389 390 struct l_xmmreg { 391 u_int32_t element[4]; 392 }; 393 394 struct l_fpstate { 395 /* Regular FPU environment */ 396 u_int32_t cw; 397 u_int32_t sw; 398 u_int32_t tag; 399 u_int32_t ipoff; 400 u_int32_t cssel; 401 u_int32_t dataoff; 402 u_int32_t datasel; 403 struct l_fpreg _st[8]; 404 u_int16_t status; 405 u_int16_t magic; /* 0xffff = regular FPU data */ 406 407 /* FXSR FPU environment */ 408 u_int32_t _fxsr_env[6]; /* env is ignored. */ 409 u_int32_t mxcsr; 410 u_int32_t reserved; 411 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 412 struct l_xmmreg _xmm[8]; 413 u_int32_t padding[56]; 414 }; 415 416 /* 417 * We make the stack look like Linux expects it when calling a signal 418 * handler, but use the BSD way of calling the handler and sigreturn(). 419 * This means that we need to pass the pointer to the handler too. 420 * It is appended to the frame to not interfere with the rest of it. 421 */ 422 struct l_sigframe { 423 l_int sf_sig; 424 struct l_sigcontext sf_sc; 425 struct l_fpstate sf_fpstate; 426 l_uint sf_extramask[LINUX_NSIG_WORDS-1]; 427 l_handler_t sf_handler; 428 }; 429 430 struct l_rt_sigframe { 431 l_int sf_sig; 432 l_siginfo_t *sf_siginfo; 433 struct l_ucontext *sf_ucontext; 434 l_siginfo_t sf_si; 435 struct l_ucontext sf_sc; 436 l_handler_t sf_handler; 437 }; 438 439 extern struct sysentvec linux_sysvec; 440 441 /* 442 * arch specific open/fcntl flags 443 */ 444 #define LINUX_F_GETLK64 12 445 #define LINUX_F_SETLK64 13 446 #define LINUX_F_SETLKW64 14 447 448 union l_semun { 449 l_int val; 450 struct l_semid_ds *buf; 451 l_ushort *array; 452 struct l_seminfo *__buf; 453 void *__pad; 454 }; 455 456 struct l_sockaddr { 457 l_ushort sa_family; 458 char sa_data[14]; 459 }; 460 461 struct l_ifmap { 462 l_ulong mem_start; 463 l_ulong mem_end; 464 l_ushort base_addr; 465 u_char irq; 466 u_char dma; 467 u_char port; 468 }; 469 470 #define LINUX_IFHWADDRLEN 6 471 #define LINUX_IFNAMSIZ 16 472 473 struct l_ifreq { 474 union { 475 char ifrn_name[LINUX_IFNAMSIZ]; 476 } ifr_ifrn; 477 478 union { 479 struct l_sockaddr ifru_addr; 480 struct l_sockaddr ifru_dstaddr; 481 struct l_sockaddr ifru_broadaddr; 482 struct l_sockaddr ifru_netmask; 483 struct l_sockaddr ifru_hwaddr; 484 l_short ifru_flags[1]; 485 l_int ifru_ivalue; 486 l_int ifru_mtu; 487 struct l_ifmap ifru_map; 488 char ifru_slave[LINUX_IFNAMSIZ]; 489 l_caddr_t ifru_data; 490 } ifr_ifru; 491 }; 492 493 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 494 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 495 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */ 496 497 /* 498 * poll() 499 */ 500 #define LINUX_POLLIN 0x0001 501 #define LINUX_POLLPRI 0x0002 502 #define LINUX_POLLOUT 0x0004 503 #define LINUX_POLLERR 0x0008 504 #define LINUX_POLLHUP 0x0010 505 #define LINUX_POLLNVAL 0x0020 506 #define LINUX_POLLRDNORM 0x0040 507 #define LINUX_POLLRDBAND 0x0080 508 #define LINUX_POLLWRNORM 0x0100 509 #define LINUX_POLLWRBAND 0x0200 510 #define LINUX_POLLMSG 0x0400 511 512 struct l_pollfd { 513 l_int fd; 514 l_short events; 515 l_short revents; 516 }; 517 518 struct l_user_desc { 519 l_uint entry_number; 520 l_uint base_addr; 521 l_uint limit; 522 l_uint seg_32bit:1; 523 l_uint contents:2; 524 l_uint read_exec_only:1; 525 l_uint limit_in_pages:1; 526 l_uint seg_not_present:1; 527 l_uint useable:1; 528 }; 529 530 struct l_desc_struct { 531 unsigned long a, b; 532 }; 533 534 535 #define LINUX_LOWERWORD 0x0000ffff 536 537 /* 538 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 539 * These convert Linux user space descriptor to machine one. 540 */ 541 #define LINUX_LDT_entry_a(info) \ 542 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 543 ((info)->limit & LINUX_LOWERWORD)) 544 545 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 546 #define LINUX_ENTRY_B_CONTENTS 10 547 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 548 #define LINUX_ENTRY_B_BASE_ADDR 16 549 #define LINUX_ENTRY_B_USEABLE 20 550 #define LINUX_ENTRY_B_SEG32BIT 22 551 #define LINUX_ENTRY_B_LIMIT 23 552 553 #define LINUX_LDT_entry_b(info) \ 554 (((info)->base_addr & 0xff000000) | \ 555 ((info)->limit & 0xf0000) | \ 556 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 557 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 558 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 559 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 560 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 561 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 562 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 563 564 #define LINUX_LDT_empty(info) \ 565 ((info)->base_addr == 0 && \ 566 (info)->limit == 0 && \ 567 (info)->contents == 0 && \ 568 (info)->seg_not_present == 1 && \ 569 (info)->read_exec_only == 1 && \ 570 (info)->seg_32bit == 0 && \ 571 (info)->limit_in_pages == 0 && \ 572 (info)->useable == 0) 573 574 /* 575 * Macros for converting segments. 576 * They do the same as those in arch/i386/kernel/process.c in Linux. 577 */ 578 #define LINUX_GET_BASE(desc) \ 579 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 580 (((desc)->b << 16) & 0x00ff0000) | \ 581 ((desc)->b & 0xff000000)) 582 583 #define LINUX_GET_LIMIT(desc) \ 584 (((desc)->a & LINUX_LOWERWORD) | \ 585 ((desc)->b & 0xf0000)) 586 587 #define LINUX_GET_32BIT(desc) \ 588 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 589 #define LINUX_GET_CONTENTS(desc) \ 590 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 591 #define LINUX_GET_WRITABLE(desc) \ 592 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 593 #define LINUX_GET_LIMIT_PAGES(desc) \ 594 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 595 #define LINUX_GET_PRESENT(desc) \ 596 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 597 #define LINUX_GET_USEABLE(desc) \ 598 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 599 600 #define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r)) 601 602 /* robust futexes */ 603 struct linux_robust_list { 604 struct linux_robust_list *next; 605 }; 606 607 struct linux_robust_list_head { 608 struct linux_robust_list list; 609 l_long futex_offset; 610 struct linux_robust_list *pending_list; 611 }; 612 613 #endif /* !_I386_LINUX_H_ */ 614