1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2004 Tim J. Robbins 5 * Copyright (c) 2001 Doug Rabson 6 * Copyright (c) 1994-1996 Søren Schmidt 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer 14 * in this position and unchanged. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 35 #ifndef _AMD64_LINUX_H_ 36 #define _AMD64_LINUX_H_ 37 38 #include <compat/linux/linux.h> 39 #include <amd64/linux32/linux32_syscall.h> 40 41 #define LINUX_LEGACY_SYSCALLS 42 43 #define LINUX_DTRACE linuxulator32 44 45 #define LINUX32_MAXUSER ((1ul << 32) - PAGE_SIZE) 46 #define LINUX32_SHAREDPAGE (LINUX32_MAXUSER - PAGE_SIZE) 47 #define LINUX32_USRSTACK LINUX32_SHAREDPAGE 48 49 /* XXX 16 = sizeof(linux32_ps_strings) */ 50 #define LINUX32_PS_STRINGS (LINUX32_USRSTACK - 16) 51 #define LINUX32_MAXDSIZ (512 * 1024 * 1024) /* 512MB */ 52 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */ 53 #define LINUX32_MAXVMEM 0 /* Unlimited */ 54 55 #define PTRIN(v) (void *)(uintptr_t)(v) 56 #define PTROUT(v) (l_uintptr_t)(uintptr_t)(v) 57 58 #define CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0) 59 #define CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0) 60 #define PTRIN_CP(src,dst,fld) \ 61 do { (dst).fld = PTRIN((src).fld); } while (0) 62 63 /* 64 * Provide a separate set of types for the Linux types. 65 */ 66 typedef int l_int; 67 typedef int32_t l_long; 68 typedef int64_t l_longlong; 69 typedef short l_short; 70 typedef unsigned int l_uint; 71 typedef uint32_t l_ulong; 72 typedef uint64_t l_ulonglong; 73 typedef unsigned short l_ushort; 74 75 typedef l_ulong l_uintptr_t; 76 typedef l_long l_clock_t; 77 typedef l_int l_daddr_t; 78 typedef l_ushort l_dev_t; 79 typedef l_uint l_gid_t; 80 typedef l_ushort l_gid16_t; 81 typedef l_ulong l_ino_t; 82 typedef l_int l_key_t; 83 typedef l_longlong l_loff_t; 84 typedef l_ushort l_mode_t; 85 typedef l_long l_off_t; 86 typedef l_int l_pid_t; 87 typedef l_uint l_size_t; 88 typedef l_long l_suseconds_t; 89 typedef l_long l_time_t; 90 typedef l_uint l_uid_t; 91 typedef l_ushort l_uid16_t; 92 typedef l_int l_timer_t; 93 typedef l_int l_mqd_t; 94 typedef l_ulong l_fd_mask; 95 96 typedef struct { 97 l_int val[2]; 98 } __packed l_fsid_t; 99 100 typedef struct { 101 l_time_t tv_sec; 102 l_suseconds_t tv_usec; 103 } l_timeval; 104 105 #define l_fd_set fd_set 106 107 /* 108 * Miscellaneous 109 */ 110 #define LINUX_AT_COUNT 20 /* Count of used aux entry types. 111 * Keep this synchronized with 112 * linux_fixup_elf() code. 113 */ 114 struct l___sysctl_args 115 { 116 l_uintptr_t name; 117 l_int nlen; 118 l_uintptr_t oldval; 119 l_uintptr_t oldlenp; 120 l_uintptr_t newval; 121 l_size_t newlen; 122 l_ulong __spare[4]; 123 } __packed; 124 125 /* Resource limits */ 126 #define LINUX_RLIMIT_CPU 0 127 #define LINUX_RLIMIT_FSIZE 1 128 #define LINUX_RLIMIT_DATA 2 129 #define LINUX_RLIMIT_STACK 3 130 #define LINUX_RLIMIT_CORE 4 131 #define LINUX_RLIMIT_RSS 5 132 #define LINUX_RLIMIT_NPROC 6 133 #define LINUX_RLIMIT_NOFILE 7 134 #define LINUX_RLIMIT_MEMLOCK 8 135 #define LINUX_RLIMIT_AS 9 /* Address space limit */ 136 137 #define LINUX_RLIM_NLIMITS 10 138 139 struct l_rlimit { 140 l_ulong rlim_cur; 141 l_ulong rlim_max; 142 } __packed; 143 144 struct l_rusage { 145 l_timeval ru_utime; 146 l_timeval ru_stime; 147 l_long ru_maxrss; 148 l_long ru_ixrss; 149 l_long ru_idrss; 150 l_long ru_isrss; 151 l_long ru_minflt; 152 l_long ru_majflt; 153 l_long ru_nswap; 154 l_long ru_inblock; 155 l_long ru_oublock; 156 l_long ru_msgsnd; 157 l_long ru_msgrcv; 158 l_long ru_nsignals; 159 l_long ru_nvcsw; 160 l_long ru_nivcsw; 161 } __packed; 162 163 struct l_mmap_argv { 164 l_uintptr_t addr; 165 l_size_t len; 166 l_int prot; 167 l_int flags; 168 l_int fd; 169 l_ulong pgoff; 170 }; 171 172 /* 173 * stat family of syscalls 174 */ 175 struct l_timespec { 176 l_time_t tv_sec; 177 l_long tv_nsec; 178 } __packed; 179 180 struct l_newstat { 181 l_ushort st_dev; 182 l_ushort __pad1; 183 l_ulong st_ino; 184 l_ushort st_mode; 185 l_ushort st_nlink; 186 l_ushort st_uid; 187 l_ushort st_gid; 188 l_ushort st_rdev; 189 l_ushort __pad2; 190 l_ulong st_size; 191 l_ulong st_blksize; 192 l_ulong st_blocks; 193 struct l_timespec st_atim; 194 struct l_timespec st_mtim; 195 struct l_timespec st_ctim; 196 l_ulong __unused4; 197 l_ulong __unused5; 198 } __packed; 199 200 struct l_stat { 201 l_ushort st_dev; 202 l_ulong st_ino; 203 l_ushort st_mode; 204 l_ushort st_nlink; 205 l_ushort st_uid; 206 l_ushort st_gid; 207 l_ushort st_rdev; 208 l_long st_size; 209 struct l_timespec st_atim; 210 struct l_timespec st_mtim; 211 struct l_timespec st_ctim; 212 l_long st_blksize; 213 l_long st_blocks; 214 l_ulong st_flags; 215 l_ulong st_gen; 216 }; 217 218 struct l_stat64 { 219 l_ushort st_dev; 220 u_char __pad0[10]; 221 l_ulong __st_ino; 222 l_uint st_mode; 223 l_uint st_nlink; 224 l_ulong st_uid; 225 l_ulong st_gid; 226 l_ushort st_rdev; 227 u_char __pad3[10]; 228 l_longlong st_size; 229 l_ulong st_blksize; 230 l_ulong st_blocks; 231 l_ulong __pad4; 232 struct l_timespec st_atim; 233 struct l_timespec st_mtim; 234 struct l_timespec st_ctim; 235 l_ulonglong st_ino; 236 } __packed; 237 238 struct l_statfs64 { 239 l_int f_type; 240 l_int f_bsize; 241 uint64_t f_blocks; 242 uint64_t f_bfree; 243 uint64_t f_bavail; 244 uint64_t f_files; 245 uint64_t f_ffree; 246 l_fsid_t f_fsid; 247 l_int f_namelen; 248 l_int f_frsize; 249 l_int f_flags; 250 l_int f_spare[4]; 251 } __packed; 252 253 /* sigaction flags */ 254 #define LINUX_SA_NOCLDSTOP 0x00000001 255 #define LINUX_SA_NOCLDWAIT 0x00000002 256 #define LINUX_SA_SIGINFO 0x00000004 257 #define LINUX_SA_RESTORER 0x04000000 258 #define LINUX_SA_ONSTACK 0x08000000 259 #define LINUX_SA_RESTART 0x10000000 260 #define LINUX_SA_INTERRUPT 0x20000000 261 #define LINUX_SA_NOMASK 0x40000000 262 #define LINUX_SA_ONESHOT 0x80000000 263 264 /* sigprocmask actions */ 265 #define LINUX_SIG_BLOCK 0 266 #define LINUX_SIG_UNBLOCK 1 267 #define LINUX_SIG_SETMASK 2 268 269 /* sigaltstack */ 270 #define LINUX_MINSIGSTKSZ 2048 271 272 typedef l_uintptr_t l_handler_t; 273 typedef l_ulong l_osigset_t; 274 275 typedef struct { 276 l_handler_t lsa_handler; 277 l_osigset_t lsa_mask; 278 l_ulong lsa_flags; 279 l_uintptr_t lsa_restorer; 280 } __packed l_osigaction_t; 281 282 typedef struct { 283 l_handler_t lsa_handler; 284 l_ulong lsa_flags; 285 l_uintptr_t lsa_restorer; 286 l_sigset_t lsa_mask; 287 } __packed l_sigaction_t; 288 289 typedef struct { 290 l_uintptr_t ss_sp; 291 l_int ss_flags; 292 l_size_t ss_size; 293 } __packed l_stack_t; 294 295 /* The Linux sigcontext, pretty much a standard 386 trapframe. */ 296 struct l_sigcontext { 297 l_uint sc_gs; 298 l_uint sc_fs; 299 l_uint sc_es; 300 l_uint sc_ds; 301 l_uint sc_edi; 302 l_uint sc_esi; 303 l_uint sc_ebp; 304 l_uint sc_esp; 305 l_uint sc_ebx; 306 l_uint sc_edx; 307 l_uint sc_ecx; 308 l_uint sc_eax; 309 l_uint sc_trapno; 310 l_uint sc_err; 311 l_uint sc_eip; 312 l_uint sc_cs; 313 l_uint sc_eflags; 314 l_uint sc_esp_at_signal; 315 l_uint sc_ss; 316 l_uint sc_387; 317 l_uint sc_mask; 318 l_uint sc_cr2; 319 } __packed; 320 321 struct l_ucontext { 322 l_ulong uc_flags; 323 l_uintptr_t uc_link; 324 l_stack_t uc_stack; 325 struct l_sigcontext uc_mcontext; 326 l_sigset_t uc_sigmask; 327 } __packed; 328 329 #define LINUX_SI_MAX_SIZE 128 330 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 331 332 typedef union l_sigval { 333 l_int sival_int; 334 l_uintptr_t sival_ptr; 335 } l_sigval_t; 336 337 typedef struct l_siginfo { 338 l_int lsi_signo; 339 l_int lsi_errno; 340 l_int lsi_code; 341 union { 342 l_int _pad[LINUX_SI_PAD_SIZE]; 343 344 struct { 345 l_pid_t _pid; 346 l_uid_t _uid; 347 } __packed _kill; 348 349 struct { 350 l_timer_t _tid; 351 l_int _overrun; 352 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 353 l_sigval_t _sigval; 354 l_int _sys_private; 355 } __packed _timer; 356 357 struct { 358 l_pid_t _pid; /* sender's pid */ 359 l_uid_t _uid; /* sender's uid */ 360 l_sigval_t _sigval; 361 } __packed _rt; 362 363 struct { 364 l_pid_t _pid; /* which child */ 365 l_uid_t _uid; /* sender's uid */ 366 l_int _status; /* exit code */ 367 l_clock_t _utime; 368 l_clock_t _stime; 369 } __packed _sigchld; 370 371 struct { 372 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 373 } __packed _sigfault; 374 375 struct { 376 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 377 l_int _fd; 378 } __packed _sigpoll; 379 } _sifields; 380 } __packed l_siginfo_t; 381 382 #define lsi_pid _sifields._kill._pid 383 #define lsi_uid _sifields._kill._uid 384 #define lsi_tid _sifields._timer._tid 385 #define lsi_overrun _sifields._timer._overrun 386 #define lsi_sys_private _sifields._timer._sys_private 387 #define lsi_status _sifields._sigchld._status 388 #define lsi_utime _sifields._sigchld._utime 389 #define lsi_stime _sifields._sigchld._stime 390 #define lsi_value _sifields._rt._sigval 391 #define lsi_int _sifields._rt._sigval.sival_int 392 #define lsi_ptr _sifields._rt._sigval.sival_ptr 393 #define lsi_addr _sifields._sigfault._addr 394 #define lsi_band _sifields._sigpoll._band 395 #define lsi_fd _sifields._sigpoll._fd 396 397 struct l_fpreg { 398 u_int16_t significand[4]; 399 u_int16_t exponent; 400 } __packed; 401 402 struct l_fpxreg { 403 u_int16_t significand[4]; 404 u_int16_t exponent; 405 u_int16_t padding[3]; 406 } __packed; 407 408 struct l_xmmreg { 409 u_int32_t element[4]; 410 } __packed; 411 412 struct l_fpstate { 413 /* Regular FPU environment */ 414 u_int32_t cw; 415 u_int32_t sw; 416 u_int32_t tag; 417 u_int32_t ipoff; 418 u_int32_t cssel; 419 u_int32_t dataoff; 420 u_int32_t datasel; 421 struct l_fpreg _st[8]; 422 u_int16_t status; 423 u_int16_t magic; /* 0xffff = regular FPU data */ 424 425 /* FXSR FPU environment */ 426 u_int32_t _fxsr_env[6]; /* env is ignored. */ 427 u_int32_t mxcsr; 428 u_int32_t reserved; 429 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 430 struct l_xmmreg _xmm[8]; 431 u_int32_t padding[56]; 432 } __packed; 433 434 /* 435 * We make the stack look like Linux expects it when calling a signal 436 * handler, but use the BSD way of calling the handler and sigreturn(). 437 * This means that we need to pass the pointer to the handler too. 438 * It is appended to the frame to not interfere with the rest of it. 439 */ 440 struct l_sigframe { 441 l_int sf_sig; 442 struct l_sigcontext sf_sc; 443 struct l_fpstate sf_fpstate; 444 l_uint sf_extramask[1]; 445 l_handler_t sf_handler; 446 } __packed; 447 448 struct l_rt_sigframe { 449 l_int sf_sig; 450 l_uintptr_t sf_siginfo; 451 l_uintptr_t sf_ucontext; 452 l_siginfo_t sf_si; 453 struct l_ucontext sf_sc; 454 l_handler_t sf_handler; 455 } __packed; 456 457 /* 458 * arch specific open/fcntl flags 459 */ 460 #define LINUX_F_GETLK64 12 461 #define LINUX_F_SETLK64 13 462 #define LINUX_F_SETLKW64 14 463 464 union l_semun { 465 l_int val; 466 l_uintptr_t buf; 467 l_uintptr_t array; 468 l_uintptr_t __buf; 469 l_uintptr_t __pad; 470 } __packed; 471 472 struct l_ifmap { 473 l_ulong mem_start; 474 l_ulong mem_end; 475 l_ushort base_addr; 476 u_char irq; 477 u_char dma; 478 u_char port; 479 } __packed; 480 481 struct l_ifreq { 482 union { 483 char ifrn_name[LINUX_IFNAMSIZ]; 484 } ifr_ifrn; 485 486 union { 487 struct l_sockaddr ifru_addr; 488 struct l_sockaddr ifru_dstaddr; 489 struct l_sockaddr ifru_broadaddr; 490 struct l_sockaddr ifru_netmask; 491 struct l_sockaddr ifru_hwaddr; 492 l_short ifru_flags[1]; 493 l_int ifru_ivalue; 494 l_int ifru_mtu; 495 struct l_ifmap ifru_map; 496 char ifru_slave[LINUX_IFNAMSIZ]; 497 l_uintptr_t ifru_data; 498 } ifr_ifru; 499 } __packed; 500 501 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 502 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 503 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */ 504 505 struct l_ifconf { 506 int ifc_len; 507 union { 508 l_uintptr_t ifcu_buf; 509 l_uintptr_t ifcu_req; 510 } ifc_ifcu; 511 } __packed; 512 513 #define ifc_buf ifc_ifcu.ifcu_buf 514 #define ifc_req ifc_ifcu.ifcu_req 515 516 /* 517 * poll() 518 */ 519 #define LINUX_POLLIN 0x0001 520 #define LINUX_POLLPRI 0x0002 521 #define LINUX_POLLOUT 0x0004 522 #define LINUX_POLLERR 0x0008 523 #define LINUX_POLLHUP 0x0010 524 #define LINUX_POLLNVAL 0x0020 525 #define LINUX_POLLRDNORM 0x0040 526 #define LINUX_POLLRDBAND 0x0080 527 #define LINUX_POLLWRNORM 0x0100 528 #define LINUX_POLLWRBAND 0x0200 529 #define LINUX_POLLMSG 0x0400 530 531 struct l_pollfd { 532 l_int fd; 533 l_short events; 534 l_short revents; 535 } __packed; 536 537 struct l_user_desc { 538 l_uint entry_number; 539 l_uint base_addr; 540 l_uint limit; 541 l_uint seg_32bit:1; 542 l_uint contents:2; 543 l_uint read_exec_only:1; 544 l_uint limit_in_pages:1; 545 l_uint seg_not_present:1; 546 l_uint useable:1; 547 }; 548 549 #define LINUX_LOWERWORD 0x0000ffff 550 551 /* 552 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 553 * These convert Linux user space descriptor to machine one. 554 */ 555 #define LINUX_LDT_entry_a(info) \ 556 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 557 ((info)->limit & LINUX_LOWERWORD)) 558 559 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 560 #define LINUX_ENTRY_B_CONTENTS 10 561 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 562 #define LINUX_ENTRY_B_BASE_ADDR 16 563 #define LINUX_ENTRY_B_USEABLE 20 564 #define LINUX_ENTRY_B_SEG32BIT 22 565 #define LINUX_ENTRY_B_LIMIT 23 566 567 #define LINUX_LDT_entry_b(info) \ 568 (((info)->base_addr & 0xff000000) | \ 569 ((info)->limit & 0xf0000) | \ 570 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 571 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 572 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 573 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 574 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 575 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 576 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 577 578 #define LINUX_LDT_empty(info) \ 579 ((info)->base_addr == 0 && \ 580 (info)->limit == 0 && \ 581 (info)->contents == 0 && \ 582 (info)->seg_not_present == 1 && \ 583 (info)->read_exec_only == 1 && \ 584 (info)->seg_32bit == 0 && \ 585 (info)->limit_in_pages == 0 && \ 586 (info)->useable == 0) 587 588 /* 589 * Macros for converting segments. 590 * They do the same as those in arch/i386/kernel/process.c in Linux. 591 */ 592 #define LINUX_GET_BASE(desc) \ 593 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 594 (((desc)->b << 16) & 0x00ff0000) | \ 595 ((desc)->b & 0xff000000)) 596 597 #define LINUX_GET_LIMIT(desc) \ 598 (((desc)->a & LINUX_LOWERWORD) | \ 599 ((desc)->b & 0xf0000)) 600 601 #define LINUX_GET_32BIT(desc) \ 602 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 603 #define LINUX_GET_CONTENTS(desc) \ 604 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 605 #define LINUX_GET_WRITABLE(desc) \ 606 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 607 #define LINUX_GET_LIMIT_PAGES(desc) \ 608 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 609 #define LINUX_GET_PRESENT(desc) \ 610 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 611 #define LINUX_GET_USEABLE(desc) \ 612 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 613 614 struct iovec; 615 struct uio; 616 617 struct l_iovec32 { 618 uint32_t iov_base; 619 l_size_t iov_len; 620 }; 621 622 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt, 623 struct iovec **iovp, int error); 624 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt, 625 struct uio **uiop); 626 int linux_copyout_rusage(struct rusage *ru, void *uaddr); 627 628 /* robust futexes */ 629 struct linux_robust_list { 630 l_uintptr_t next; 631 }; 632 633 struct linux_robust_list_head { 634 struct linux_robust_list list; 635 l_long futex_offset; 636 l_uintptr_t pending_list; 637 }; 638 639 #endif /* !_AMD64_LINUX_H_ */ 640