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_longlong l_time64_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 typedef l_ulong l_fd_mask; 90 91 typedef struct { 92 l_int val[2]; 93 } l_fsid_t; 94 95 typedef struct { 96 l_time_t tv_sec; 97 l_suseconds_t tv_usec; 98 } l_timeval; 99 100 #define l_fd_set fd_set 101 102 /* 103 * Miscellaneous 104 */ 105 #define LINUX_AT_COUNT 21 /* Count of used aux entry types. 106 * Keep this synchronized with 107 * linux_fixup_elf() code. 108 */ 109 struct l___sysctl_args 110 { 111 l_uintptr_t name; 112 l_int nlen; 113 l_uintptr_t oldval; 114 l_uintptr_t oldlenp; 115 l_uintptr_t newval; 116 l_size_t newlen; 117 l_ulong __spare[4]; 118 }; 119 120 /* Resource limits */ 121 #define LINUX_RLIMIT_CPU 0 122 #define LINUX_RLIMIT_FSIZE 1 123 #define LINUX_RLIMIT_DATA 2 124 #define LINUX_RLIMIT_STACK 3 125 #define LINUX_RLIMIT_CORE 4 126 #define LINUX_RLIMIT_RSS 5 127 #define LINUX_RLIMIT_NPROC 6 128 #define LINUX_RLIMIT_NOFILE 7 129 #define LINUX_RLIMIT_MEMLOCK 8 130 #define LINUX_RLIMIT_AS 9 /* Address space limit */ 131 132 #define LINUX_RLIM_NLIMITS 10 133 134 struct l_rlimit { 135 l_ulong rlim_cur; 136 l_ulong rlim_max; 137 }; 138 139 struct l_rusage { 140 l_timeval ru_utime; 141 l_timeval ru_stime; 142 l_long ru_maxrss; 143 l_long ru_ixrss; 144 l_long ru_idrss; 145 l_long ru_isrss; 146 l_long ru_minflt; 147 l_long ru_majflt; 148 l_long ru_nswap; 149 l_long ru_inblock; 150 l_long ru_oublock; 151 l_long ru_msgsnd; 152 l_long ru_msgrcv; 153 l_long ru_nsignals; 154 l_long ru_nvcsw; 155 l_long ru_nivcsw; 156 }; 157 158 struct l_mmap_argv { 159 l_uintptr_t addr; 160 l_size_t len; 161 l_int prot; 162 l_int flags; 163 l_int fd; 164 l_ulong pgoff; 165 }; 166 167 /* 168 * stat family of syscalls 169 */ 170 struct l_timespec { 171 l_time_t tv_sec; 172 l_long tv_nsec; 173 }; 174 175 /* __kernel_timespec */ 176 struct l_timespec64 { 177 l_time64_t tv_sec; 178 l_longlong tv_nsec; 179 }; 180 181 struct l_newstat { 182 l_ushort st_dev; 183 l_ushort __pad1; 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_ushort __pad2; 191 l_ulong st_size; 192 l_ulong st_blksize; 193 l_ulong st_blocks; 194 struct l_timespec st_atim; 195 struct l_timespec st_mtim; 196 struct l_timespec st_ctim; 197 l_ulong __unused4; 198 l_ulong __unused5; 199 }; 200 201 struct l_stat { 202 l_ushort st_dev; 203 l_ulong st_ino; 204 l_ushort st_mode; 205 l_ushort st_nlink; 206 l_ushort st_uid; 207 l_ushort st_gid; 208 l_ushort st_rdev; 209 l_long st_size; 210 struct l_timespec st_atim; 211 struct l_timespec st_mtim; 212 struct l_timespec st_ctim; 213 l_long st_blksize; 214 l_long st_blocks; 215 l_ulong st_flags; 216 l_ulong st_gen; 217 }; 218 219 struct l_stat64 { 220 l_ushort st_dev; 221 u_char __pad0[10]; 222 l_ulong __st_ino; 223 l_uint st_mode; 224 l_uint st_nlink; 225 l_ulong st_uid; 226 l_ulong st_gid; 227 l_ushort st_rdev; 228 u_char __pad3[10]; 229 l_longlong st_size; 230 l_ulong st_blksize; 231 l_ulong st_blocks; 232 l_ulong __pad4; 233 struct l_timespec st_atim; 234 struct l_timespec st_mtim; 235 struct l_timespec st_ctim; 236 l_ulonglong st_ino; 237 } __packed; 238 239 struct l_statfs64 { 240 l_int f_type; 241 l_int f_bsize; 242 uint64_t f_blocks; 243 uint64_t f_bfree; 244 uint64_t f_bavail; 245 uint64_t f_files; 246 uint64_t f_ffree; 247 l_fsid_t f_fsid; 248 l_int f_namelen; 249 l_int f_frsize; 250 l_int f_flags; 251 l_int f_spare[4]; 252 } __packed; 253 254 /* sigaction flags */ 255 #define LINUX_SA_NOCLDSTOP 0x00000001 256 #define LINUX_SA_NOCLDWAIT 0x00000002 257 #define LINUX_SA_SIGINFO 0x00000004 258 #define LINUX_SA_RESTORER 0x04000000 259 #define LINUX_SA_ONSTACK 0x08000000 260 #define LINUX_SA_RESTART 0x10000000 261 #define LINUX_SA_INTERRUPT 0x20000000 262 #define LINUX_SA_NOMASK 0x40000000 263 #define LINUX_SA_ONESHOT 0x80000000 264 265 /* sigprocmask actions */ 266 #define LINUX_SIG_BLOCK 0 267 #define LINUX_SIG_UNBLOCK 1 268 #define LINUX_SIG_SETMASK 2 269 270 /* sigaltstack */ 271 #define LINUX_MINSIGSTKSZ 2048 272 273 typedef l_uintptr_t l_handler_t; 274 typedef l_ulong l_osigset_t; 275 276 typedef struct { 277 l_handler_t lsa_handler; 278 l_osigset_t lsa_mask; 279 l_ulong lsa_flags; 280 l_uintptr_t lsa_restorer; 281 } l_osigaction_t; 282 283 typedef struct { 284 l_handler_t lsa_handler; 285 l_ulong lsa_flags; 286 l_uintptr_t lsa_restorer; 287 l_sigset_t lsa_mask; 288 } __packed l_sigaction_t; 289 290 typedef struct { 291 l_uintptr_t ss_sp; 292 l_int ss_flags; 293 l_size_t ss_size; 294 } l_stack_t; 295 296 /* The Linux sigcontext, pretty much a standard 386 trapframe. */ 297 struct l_sigcontext { 298 l_uint sc_gs; 299 l_uint sc_fs; 300 l_uint sc_es; 301 l_uint sc_ds; 302 l_uint sc_edi; 303 l_uint sc_esi; 304 l_uint sc_ebp; 305 l_uint sc_esp; 306 l_uint sc_ebx; 307 l_uint sc_edx; 308 l_uint sc_ecx; 309 l_uint sc_eax; 310 l_uint sc_trapno; 311 l_uint sc_err; 312 l_uint sc_eip; 313 l_uint sc_cs; 314 l_uint sc_eflags; 315 l_uint sc_esp_at_signal; 316 l_uint sc_ss; 317 l_uint sc_387; 318 l_uint sc_mask; 319 l_uint sc_cr2; 320 }; 321 322 struct l_ucontext { 323 l_ulong uc_flags; 324 l_uintptr_t uc_link; 325 l_stack_t uc_stack; 326 struct l_sigcontext uc_mcontext; 327 l_sigset_t uc_sigmask; 328 } __packed; 329 330 #define LINUX_SI_MAX_SIZE 128 331 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3) 332 333 typedef union l_sigval { 334 l_int sival_int; 335 l_uintptr_t sival_ptr; 336 } l_sigval_t; 337 338 typedef struct l_siginfo { 339 l_int lsi_signo; 340 l_int lsi_errno; 341 l_int lsi_code; 342 union { 343 l_int _pad[LINUX_SI_PAD_SIZE]; 344 345 struct { 346 l_pid_t _pid; 347 l_uid_t _uid; 348 } _kill; 349 350 struct { 351 l_timer_t _tid; 352 l_int _overrun; 353 char _pad[sizeof(l_uid_t) - sizeof(l_int)]; 354 l_sigval_t _sigval; 355 l_int _sys_private; 356 } _timer; 357 358 struct { 359 l_pid_t _pid; /* sender's pid */ 360 l_uid_t _uid; /* sender's uid */ 361 l_sigval_t _sigval; 362 } _rt; 363 364 struct { 365 l_pid_t _pid; /* which child */ 366 l_uid_t _uid; /* sender's uid */ 367 l_int _status; /* exit code */ 368 l_clock_t _utime; 369 l_clock_t _stime; 370 } _sigchld; 371 372 struct { 373 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 374 } _sigfault; 375 376 struct { 377 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 378 l_int _fd; 379 } _sigpoll; 380 } _sifields; 381 } l_siginfo_t; 382 383 #define lsi_pid _sifields._kill._pid 384 #define lsi_uid _sifields._kill._uid 385 #define lsi_tid _sifields._timer._tid 386 #define lsi_overrun _sifields._timer._overrun 387 #define lsi_sys_private _sifields._timer._sys_private 388 #define lsi_status _sifields._sigchld._status 389 #define lsi_utime _sifields._sigchld._utime 390 #define lsi_stime _sifields._sigchld._stime 391 #define lsi_value _sifields._rt._sigval 392 #define lsi_int _sifields._rt._sigval.sival_int 393 #define lsi_ptr _sifields._rt._sigval.sival_ptr 394 #define lsi_addr _sifields._sigfault._addr 395 #define lsi_band _sifields._sigpoll._band 396 #define lsi_fd _sifields._sigpoll._fd 397 398 struct l_fpreg { 399 u_int16_t significand[4]; 400 u_int16_t exponent; 401 }; 402 403 struct l_fpxreg { 404 u_int16_t significand[4]; 405 u_int16_t exponent; 406 u_int16_t padding[3]; 407 }; 408 409 struct l_xmmreg { 410 u_int32_t element[4]; 411 }; 412 413 struct l_fpstate { 414 /* Regular FPU environment */ 415 u_int32_t cw; 416 u_int32_t sw; 417 u_int32_t tag; 418 u_int32_t ipoff; 419 u_int32_t cssel; 420 u_int32_t dataoff; 421 u_int32_t datasel; 422 struct l_fpreg _st[8]; 423 u_int16_t status; 424 u_int16_t magic; /* 0xffff = regular FPU data */ 425 426 /* FXSR FPU environment */ 427 u_int32_t _fxsr_env[6]; /* env is ignored. */ 428 u_int32_t mxcsr; 429 u_int32_t reserved; 430 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */ 431 struct l_xmmreg _xmm[8]; 432 u_int32_t padding[56]; 433 }; 434 435 /* 436 * We make the stack look like Linux expects it when calling a signal 437 * handler, but use the BSD way of calling the handler and sigreturn(). 438 * This means that we need to pass the pointer to the handler too. 439 * It is appended to the frame to not interfere with the rest of it. 440 */ 441 struct l_sigframe { 442 l_int sf_sig; 443 struct l_sigcontext sf_sc; 444 struct l_fpstate sf_fpstate; 445 l_uint sf_extramask[1]; 446 l_handler_t sf_handler; 447 }; 448 449 struct l_rt_sigframe { 450 l_int sf_sig; 451 l_uintptr_t sf_siginfo; 452 l_uintptr_t sf_ucontext; 453 l_siginfo_t sf_si; 454 struct l_ucontext sf_sc; 455 l_handler_t sf_handler; 456 } __packed; 457 458 /* 459 * arch specific open/fcntl flags 460 */ 461 #define LINUX_F_GETLK64 12 462 #define LINUX_F_SETLK64 13 463 #define LINUX_F_SETLKW64 14 464 465 union l_semun { 466 l_int val; 467 l_uintptr_t buf; 468 l_uintptr_t array; 469 l_uintptr_t __buf; 470 l_uintptr_t __pad; 471 }; 472 473 struct l_ifmap { 474 l_ulong mem_start; 475 l_ulong mem_end; 476 l_ushort base_addr; 477 u_char irq; 478 u_char dma; 479 u_char port; 480 /* 3 bytes spare */ 481 }; 482 483 struct l_ifreq { 484 union { 485 char ifrn_name[LINUX_IFNAMSIZ]; 486 } ifr_ifrn; 487 488 union { 489 struct l_sockaddr ifru_addr; 490 struct l_sockaddr ifru_dstaddr; 491 struct l_sockaddr ifru_broadaddr; 492 struct l_sockaddr ifru_netmask; 493 struct l_sockaddr ifru_hwaddr; 494 l_short ifru_flags[1]; 495 l_int ifru_ivalue; 496 l_int ifru_mtu; 497 struct l_ifmap ifru_map; 498 char ifru_slave[LINUX_IFNAMSIZ]; 499 l_uintptr_t ifru_data; 500 } ifr_ifru; 501 }; 502 503 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */ 504 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */ 505 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */ 506 507 struct l_ifconf { 508 int ifc_len; 509 union { 510 l_uintptr_t ifcu_buf; 511 l_uintptr_t ifcu_req; 512 } ifc_ifcu; 513 }; 514 515 #define ifc_buf ifc_ifcu.ifcu_buf 516 #define ifc_req ifc_ifcu.ifcu_req 517 518 /* 519 * poll() 520 */ 521 #define LINUX_POLLIN 0x0001 522 #define LINUX_POLLPRI 0x0002 523 #define LINUX_POLLOUT 0x0004 524 #define LINUX_POLLERR 0x0008 525 #define LINUX_POLLHUP 0x0010 526 #define LINUX_POLLNVAL 0x0020 527 #define LINUX_POLLRDNORM 0x0040 528 #define LINUX_POLLRDBAND 0x0080 529 #define LINUX_POLLWRNORM 0x0100 530 #define LINUX_POLLWRBAND 0x0200 531 #define LINUX_POLLMSG 0x0400 532 533 struct l_pollfd { 534 l_int fd; 535 l_short events; 536 l_short revents; 537 }; 538 539 struct l_user_desc { 540 l_uint entry_number; 541 l_uint base_addr; 542 l_uint limit; 543 l_uint seg_32bit:1; 544 l_uint contents:2; 545 l_uint read_exec_only:1; 546 l_uint limit_in_pages:1; 547 l_uint seg_not_present:1; 548 l_uint useable:1; 549 }; 550 551 #define LINUX_LOWERWORD 0x0000ffff 552 553 /* 554 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 555 * These convert Linux user space descriptor to machine one. 556 */ 557 #define LINUX_LDT_entry_a(info) \ 558 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 559 ((info)->limit & LINUX_LOWERWORD)) 560 561 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 562 #define LINUX_ENTRY_B_CONTENTS 10 563 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 564 #define LINUX_ENTRY_B_BASE_ADDR 16 565 #define LINUX_ENTRY_B_USEABLE 20 566 #define LINUX_ENTRY_B_SEG32BIT 22 567 #define LINUX_ENTRY_B_LIMIT 23 568 569 #define LINUX_LDT_entry_b(info) \ 570 (((info)->base_addr & 0xff000000) | \ 571 ((info)->limit & 0xf0000) | \ 572 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 573 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 574 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 575 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 576 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 577 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 578 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 579 580 #define LINUX_LDT_empty(info) \ 581 ((info)->base_addr == 0 && \ 582 (info)->limit == 0 && \ 583 (info)->contents == 0 && \ 584 (info)->seg_not_present == 1 && \ 585 (info)->read_exec_only == 1 && \ 586 (info)->seg_32bit == 0 && \ 587 (info)->limit_in_pages == 0 && \ 588 (info)->useable == 0) 589 590 /* 591 * Macros for converting segments. 592 * They do the same as those in arch/i386/kernel/process.c in Linux. 593 */ 594 #define LINUX_GET_BASE(desc) \ 595 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 596 (((desc)->b << 16) & 0x00ff0000) | \ 597 ((desc)->b & 0xff000000)) 598 599 #define LINUX_GET_LIMIT(desc) \ 600 (((desc)->a & LINUX_LOWERWORD) | \ 601 ((desc)->b & 0xf0000)) 602 603 #define LINUX_GET_32BIT(desc) \ 604 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 605 #define LINUX_GET_CONTENTS(desc) \ 606 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 607 #define LINUX_GET_WRITABLE(desc) \ 608 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 609 #define LINUX_GET_LIMIT_PAGES(desc) \ 610 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 611 #define LINUX_GET_PRESENT(desc) \ 612 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 613 #define LINUX_GET_USEABLE(desc) \ 614 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 615 616 struct iovec; 617 struct uio; 618 619 struct l_iovec32 { 620 uint32_t iov_base; 621 l_size_t iov_len; 622 }; 623 624 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt, 625 struct iovec **iovp, int error); 626 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt, 627 struct uio **uiop); 628 int linux_copyout_rusage(struct rusage *ru, void *uaddr); 629 630 /* robust futexes */ 631 struct linux_robust_list { 632 l_uintptr_t next; 633 }; 634 635 struct linux_robust_list_head { 636 struct linux_robust_list list; 637 l_long futex_offset; 638 l_uintptr_t pending_list; 639 }; 640 641 /* This corresponds to 'struct user_regs_struct32' in Linux. */ 642 struct linux_pt_regset32 { 643 l_uint ebx; 644 l_uint ecx; 645 l_uint edx; 646 l_uint esi; 647 l_uint edi; 648 l_uint ebp; 649 l_uint eax; 650 l_uint ds; 651 l_uint es; 652 l_uint fs; 653 l_uint gs; 654 l_uint orig_eax; 655 l_uint eip; 656 l_uint cs; 657 l_uint eflags; 658 l_uint esp; 659 l_uint ss; 660 }; 661 662 struct reg32; 663 664 void bsd_to_linux_regset32(struct reg32 *b_reg, 665 struct linux_pt_regset32 *l_regset); 666 667 #endif /* !_AMD64_LINUX_H_ */ 668