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 <sys/abi_compat.h> 39 40 #include <compat/linux/linux.h> 41 #include <amd64/linux32/linux32_syscall.h> 42 43 #define LINUX_LEGACY_SYSCALLS 44 45 #define LINUX_DTRACE linuxulator32 46 47 #define LINUX32_MAXUSER ((1ul << 32) - PAGE_SIZE) 48 #define LINUX32_SHAREDPAGE (LINUX32_MAXUSER - PAGE_SIZE) 49 #define LINUX32_USRSTACK LINUX32_SHAREDPAGE 50 51 /* XXX 16 = sizeof(linux32_ps_strings) */ 52 #define LINUX32_PS_STRINGS (LINUX32_USRSTACK - 16) 53 #define LINUX32_MAXDSIZ (512 * 1024 * 1024) /* 512MB */ 54 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */ 55 #define LINUX32_MAXVMEM 0 /* Unlimited */ 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 l_ulong l_uintptr_t; 70 typedef l_long l_clock_t; 71 typedef l_int l_daddr_t; 72 typedef l_ushort l_dev_t; 73 typedef l_uint l_gid_t; 74 typedef l_ushort l_gid16_t; 75 typedef l_ulong l_ino_t; 76 typedef l_int l_key_t; 77 typedef l_longlong l_loff_t; 78 typedef l_ushort l_mode_t; 79 typedef l_long l_off_t; 80 typedef l_int l_pid_t; 81 typedef l_uint l_size_t; 82 typedef l_long l_suseconds_t; 83 typedef l_long l_time_t; 84 typedef l_uint l_uid_t; 85 typedef l_ushort l_uid16_t; 86 typedef l_int l_timer_t; 87 typedef l_int l_mqd_t; 88 typedef l_ulong l_fd_mask; 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 21 /* Count of used aux entry types. 105 * Keep this synchronized with 106 * linux_fixup_elf() code. 107 */ 108 struct l___sysctl_args 109 { 110 l_uintptr_t name; 111 l_int nlen; 112 l_uintptr_t oldval; 113 l_uintptr_t oldlenp; 114 l_uintptr_t 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 struct l_rusage { 139 l_timeval ru_utime; 140 l_timeval ru_stime; 141 l_long ru_maxrss; 142 l_long ru_ixrss; 143 l_long ru_idrss; 144 l_long ru_isrss; 145 l_long ru_minflt; 146 l_long ru_majflt; 147 l_long ru_nswap; 148 l_long ru_inblock; 149 l_long ru_oublock; 150 l_long ru_msgsnd; 151 l_long ru_msgrcv; 152 l_long ru_nsignals; 153 l_long ru_nvcsw; 154 l_long ru_nivcsw; 155 }; 156 157 struct l_mmap_argv { 158 l_uintptr_t addr; 159 l_size_t len; 160 l_int prot; 161 l_int flags; 162 l_int fd; 163 l_ulong pgoff; 164 }; 165 166 /* 167 * stat family of syscalls 168 */ 169 struct l_timespec { 170 l_time_t tv_sec; 171 l_long tv_nsec; 172 }; 173 174 struct l_newstat { 175 l_ushort st_dev; 176 l_ushort __pad1; 177 l_ulong st_ino; 178 l_ushort st_mode; 179 l_ushort st_nlink; 180 l_ushort st_uid; 181 l_ushort st_gid; 182 l_ushort st_rdev; 183 l_ushort __pad2; 184 l_ulong st_size; 185 l_ulong st_blksize; 186 l_ulong st_blocks; 187 struct l_timespec st_atim; 188 struct l_timespec st_mtim; 189 struct l_timespec st_ctim; 190 l_ulong __unused4; 191 l_ulong __unused5; 192 }; 193 194 struct l_stat { 195 l_ushort st_dev; 196 l_ulong st_ino; 197 l_ushort st_mode; 198 l_ushort st_nlink; 199 l_ushort st_uid; 200 l_ushort st_gid; 201 l_ushort st_rdev; 202 l_long st_size; 203 struct l_timespec st_atim; 204 struct l_timespec st_mtim; 205 struct l_timespec st_ctim; 206 l_long st_blksize; 207 l_long st_blocks; 208 l_ulong st_flags; 209 l_ulong st_gen; 210 }; 211 212 struct l_stat64 { 213 l_ushort st_dev; 214 u_char __pad0[10]; 215 l_ulong __st_ino; 216 l_uint st_mode; 217 l_uint st_nlink; 218 l_ulong st_uid; 219 l_ulong st_gid; 220 l_ushort st_rdev; 221 u_char __pad3[10]; 222 l_longlong st_size; 223 l_ulong st_blksize; 224 l_ulong st_blocks; 225 l_ulong __pad4; 226 struct l_timespec st_atim; 227 struct l_timespec st_mtim; 228 struct l_timespec st_ctim; 229 l_ulonglong st_ino; 230 } __packed; 231 232 struct l_statfs64 { 233 l_int f_type; 234 l_int f_bsize; 235 uint64_t f_blocks; 236 uint64_t f_bfree; 237 uint64_t f_bavail; 238 uint64_t f_files; 239 uint64_t f_ffree; 240 l_fsid_t f_fsid; 241 l_int f_namelen; 242 l_int f_frsize; 243 l_int f_flags; 244 l_int f_spare[4]; 245 } __packed; 246 247 /* sigaction flags */ 248 #define LINUX_SA_NOCLDSTOP 0x00000001 249 #define LINUX_SA_NOCLDWAIT 0x00000002 250 #define LINUX_SA_SIGINFO 0x00000004 251 #define LINUX_SA_RESTORER 0x04000000 252 #define LINUX_SA_ONSTACK 0x08000000 253 #define LINUX_SA_RESTART 0x10000000 254 #define LINUX_SA_INTERRUPT 0x20000000 255 #define LINUX_SA_NOMASK 0x40000000 256 #define LINUX_SA_ONESHOT 0x80000000 257 258 /* sigprocmask actions */ 259 #define LINUX_SIG_BLOCK 0 260 #define LINUX_SIG_UNBLOCK 1 261 #define LINUX_SIG_SETMASK 2 262 263 /* sigaltstack */ 264 #define LINUX_MINSIGSTKSZ 2048 265 266 typedef l_uintptr_t l_handler_t; 267 typedef l_ulong l_osigset_t; 268 269 typedef struct { 270 l_handler_t lsa_handler; 271 l_osigset_t lsa_mask; 272 l_ulong lsa_flags; 273 l_uintptr_t lsa_restorer; 274 } l_osigaction_t; 275 276 typedef struct { 277 l_handler_t lsa_handler; 278 l_ulong lsa_flags; 279 l_uintptr_t lsa_restorer; 280 l_sigset_t lsa_mask; 281 } __packed l_sigaction_t; 282 283 typedef struct { 284 l_uintptr_t ss_sp; 285 l_int ss_flags; 286 l_size_t ss_size; 287 } l_stack_t; 288 289 /* The Linux sigcontext, pretty much a standard 386 trapframe. */ 290 struct l_sigcontext { 291 l_uint sc_gs; 292 l_uint sc_fs; 293 l_uint sc_es; 294 l_uint sc_ds; 295 l_uint sc_edi; 296 l_uint sc_esi; 297 l_uint sc_ebp; 298 l_uint sc_esp; 299 l_uint sc_ebx; 300 l_uint sc_edx; 301 l_uint sc_ecx; 302 l_uint sc_eax; 303 l_uint sc_trapno; 304 l_uint sc_err; 305 l_uint sc_eip; 306 l_uint sc_cs; 307 l_uint sc_eflags; 308 l_uint sc_esp_at_signal; 309 l_uint sc_ss; 310 l_uint sc_387; 311 l_uint sc_mask; 312 l_uint sc_cr2; 313 }; 314 315 struct l_ucontext { 316 l_ulong uc_flags; 317 l_uintptr_t uc_link; 318 l_stack_t uc_stack; 319 struct l_sigcontext uc_mcontext; 320 l_sigset_t uc_sigmask; 321 } __packed; 322 323 #define LINUX_SI_MAX_SIZE 128 324 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 325 326 typedef union l_sigval { 327 l_int sival_int; 328 l_uintptr_t sival_ptr; 329 } l_sigval_t; 330 331 typedef struct l_siginfo { 332 l_int lsi_signo; 333 l_int lsi_errno; 334 l_int lsi_code; 335 union { 336 l_int _pad[LINUX_SI_PAD_SIZE]; 337 338 struct { 339 l_pid_t _pid; 340 l_uid_t _uid; 341 } _kill; 342 343 struct { 344 l_timer_t _tid; 345 l_int _overrun; 346 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 347 l_sigval_t _sigval; 348 l_int _sys_private; 349 } _timer; 350 351 struct { 352 l_pid_t _pid; /* sender's pid */ 353 l_uid_t _uid; /* sender's uid */ 354 l_sigval_t _sigval; 355 } _rt; 356 357 struct { 358 l_pid_t _pid; /* which child */ 359 l_uid_t _uid; /* sender's uid */ 360 l_int _status; /* exit code */ 361 l_clock_t _utime; 362 l_clock_t _stime; 363 } _sigchld; 364 365 struct { 366 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 367 } _sigfault; 368 369 struct { 370 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 371 l_int _fd; 372 } _sigpoll; 373 } _sifields; 374 } l_siginfo_t; 375 376 #define lsi_pid _sifields._kill._pid 377 #define lsi_uid _sifields._kill._uid 378 #define lsi_tid _sifields._timer._tid 379 #define lsi_overrun _sifields._timer._overrun 380 #define lsi_sys_private _sifields._timer._sys_private 381 #define lsi_status _sifields._sigchld._status 382 #define lsi_utime _sifields._sigchld._utime 383 #define lsi_stime _sifields._sigchld._stime 384 #define lsi_value _sifields._rt._sigval 385 #define lsi_int _sifields._rt._sigval.sival_int 386 #define lsi_ptr _sifields._rt._sigval.sival_ptr 387 #define lsi_addr _sifields._sigfault._addr 388 #define lsi_band _sifields._sigpoll._band 389 #define lsi_fd _sifields._sigpoll._fd 390 391 struct l_fpreg { 392 u_int16_t significand[4]; 393 u_int16_t exponent; 394 }; 395 396 struct l_fpxreg { 397 u_int16_t significand[4]; 398 u_int16_t exponent; 399 u_int16_t padding[3]; 400 }; 401 402 struct l_xmmreg { 403 u_int32_t element[4]; 404 }; 405 406 struct l_fpstate { 407 /* Regular FPU environment */ 408 u_int32_t cw; 409 u_int32_t sw; 410 u_int32_t tag; 411 u_int32_t ipoff; 412 u_int32_t cssel; 413 u_int32_t dataoff; 414 u_int32_t datasel; 415 struct l_fpreg _st[8]; 416 u_int16_t status; 417 u_int16_t magic; /* 0xffff = regular FPU data */ 418 419 /* FXSR FPU environment */ 420 u_int32_t _fxsr_env[6]; /* env is ignored. */ 421 u_int32_t mxcsr; 422 u_int32_t reserved; 423 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 424 struct l_xmmreg _xmm[8]; 425 u_int32_t padding[56]; 426 }; 427 428 /* 429 * We make the stack look like Linux expects it when calling a signal 430 * handler, but use the BSD way of calling the handler and sigreturn(). 431 * This means that we need to pass the pointer to the handler too. 432 * It is appended to the frame to not interfere with the rest of it. 433 */ 434 struct l_sigframe { 435 l_int sf_sig; 436 struct l_sigcontext sf_sc; 437 struct l_fpstate sf_fpstate; 438 l_uint sf_extramask[1]; 439 l_handler_t sf_handler; 440 }; 441 442 struct l_rt_sigframe { 443 l_int sf_sig; 444 l_uintptr_t sf_siginfo; 445 l_uintptr_t sf_ucontext; 446 l_siginfo_t sf_si; 447 struct l_ucontext sf_sc; 448 l_handler_t sf_handler; 449 } __packed; 450 451 /* 452 * arch specific open/fcntl flags 453 */ 454 #define LINUX_F_GETLK64 12 455 #define LINUX_F_SETLK64 13 456 #define LINUX_F_SETLKW64 14 457 458 union l_semun { 459 l_int val; 460 l_uintptr_t buf; 461 l_uintptr_t array; 462 l_uintptr_t __buf; 463 l_uintptr_t __pad; 464 }; 465 466 struct l_ifmap { 467 l_ulong mem_start; 468 l_ulong mem_end; 469 l_ushort base_addr; 470 u_char irq; 471 u_char dma; 472 u_char port; 473 /* 3 bytes spare */ 474 }; 475 476 struct l_ifreq { 477 union { 478 char ifrn_name[LINUX_IFNAMSIZ]; 479 } ifr_ifrn; 480 481 union { 482 struct l_sockaddr ifru_addr; 483 struct l_sockaddr ifru_dstaddr; 484 struct l_sockaddr ifru_broadaddr; 485 struct l_sockaddr ifru_netmask; 486 struct l_sockaddr ifru_hwaddr; 487 l_short ifru_flags[1]; 488 l_int ifru_ivalue; 489 l_int ifru_mtu; 490 struct l_ifmap ifru_map; 491 char ifru_slave[LINUX_IFNAMSIZ]; 492 l_uintptr_t ifru_data; 493 } ifr_ifru; 494 }; 495 496 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 497 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 498 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */ 499 500 struct l_ifconf { 501 int ifc_len; 502 union { 503 l_uintptr_t ifcu_buf; 504 l_uintptr_t ifcu_req; 505 } ifc_ifcu; 506 }; 507 508 #define ifc_buf ifc_ifcu.ifcu_buf 509 #define ifc_req ifc_ifcu.ifcu_req 510 511 /* 512 * poll() 513 */ 514 #define LINUX_POLLIN 0x0001 515 #define LINUX_POLLPRI 0x0002 516 #define LINUX_POLLOUT 0x0004 517 #define LINUX_POLLERR 0x0008 518 #define LINUX_POLLHUP 0x0010 519 #define LINUX_POLLNVAL 0x0020 520 #define LINUX_POLLRDNORM 0x0040 521 #define LINUX_POLLRDBAND 0x0080 522 #define LINUX_POLLWRNORM 0x0100 523 #define LINUX_POLLWRBAND 0x0200 524 #define LINUX_POLLMSG 0x0400 525 526 struct l_pollfd { 527 l_int fd; 528 l_short events; 529 l_short revents; 530 }; 531 532 struct l_user_desc { 533 l_uint entry_number; 534 l_uint base_addr; 535 l_uint limit; 536 l_uint seg_32bit:1; 537 l_uint contents:2; 538 l_uint read_exec_only:1; 539 l_uint limit_in_pages:1; 540 l_uint seg_not_present:1; 541 l_uint useable:1; 542 }; 543 544 #define LINUX_LOWERWORD 0x0000ffff 545 546 /* 547 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 548 * These convert Linux user space descriptor to machine one. 549 */ 550 #define LINUX_LDT_entry_a(info) \ 551 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 552 ((info)->limit & LINUX_LOWERWORD)) 553 554 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 555 #define LINUX_ENTRY_B_CONTENTS 10 556 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 557 #define LINUX_ENTRY_B_BASE_ADDR 16 558 #define LINUX_ENTRY_B_USEABLE 20 559 #define LINUX_ENTRY_B_SEG32BIT 22 560 #define LINUX_ENTRY_B_LIMIT 23 561 562 #define LINUX_LDT_entry_b(info) \ 563 (((info)->base_addr & 0xff000000) | \ 564 ((info)->limit & 0xf0000) | \ 565 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 566 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 567 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 568 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 569 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 570 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 571 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 572 573 #define LINUX_LDT_empty(info) \ 574 ((info)->base_addr == 0 && \ 575 (info)->limit == 0 && \ 576 (info)->contents == 0 && \ 577 (info)->seg_not_present == 1 && \ 578 (info)->read_exec_only == 1 && \ 579 (info)->seg_32bit == 0 && \ 580 (info)->limit_in_pages == 0 && \ 581 (info)->useable == 0) 582 583 /* 584 * Macros for converting segments. 585 * They do the same as those in arch/i386/kernel/process.c in Linux. 586 */ 587 #define LINUX_GET_BASE(desc) \ 588 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 589 (((desc)->b << 16) & 0x00ff0000) | \ 590 ((desc)->b & 0xff000000)) 591 592 #define LINUX_GET_LIMIT(desc) \ 593 (((desc)->a & LINUX_LOWERWORD) | \ 594 ((desc)->b & 0xf0000)) 595 596 #define LINUX_GET_32BIT(desc) \ 597 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 598 #define LINUX_GET_CONTENTS(desc) \ 599 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 600 #define LINUX_GET_WRITABLE(desc) \ 601 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 602 #define LINUX_GET_LIMIT_PAGES(desc) \ 603 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 604 #define LINUX_GET_PRESENT(desc) \ 605 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 606 #define LINUX_GET_USEABLE(desc) \ 607 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 608 609 struct iovec; 610 struct uio; 611 612 struct l_iovec32 { 613 uint32_t iov_base; 614 l_size_t iov_len; 615 }; 616 617 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt, 618 struct iovec **iovp, int error); 619 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt, 620 struct uio **uiop); 621 int linux_copyout_rusage(struct rusage *ru, void *uaddr); 622 623 /* robust futexes */ 624 struct linux_robust_list { 625 l_uintptr_t next; 626 }; 627 628 struct linux_robust_list_head { 629 struct linux_robust_list list; 630 l_long futex_offset; 631 l_uintptr_t pending_list; 632 }; 633 634 /* This corresponds to 'struct user_regs_struct32' in Linux. */ 635 struct linux_pt_regset32 { 636 l_uint ebx; 637 l_uint ecx; 638 l_uint edx; 639 l_uint esi; 640 l_uint edi; 641 l_uint ebp; 642 l_uint eax; 643 l_uint ds; 644 l_uint es; 645 l_uint fs; 646 l_uint gs; 647 l_uint orig_eax; 648 l_uint eip; 649 l_uint cs; 650 l_uint eflags; 651 l_uint esp; 652 l_uint ss; 653 }; 654 655 struct reg32; 656 657 void bsd_to_linux_regset32(struct reg32 *b_reg, 658 struct linux_pt_regset32 *l_regset); 659 660 #endif /* !_AMD64_LINUX_H_ */ 661