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_MAXDSIZ (512 * 1024 * 1024) /* 512MB */ 48 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */ 49 #define LINUX32_MAXVMEM 0 /* Unlimited */ 50 51 /* 52 * Provide a separate set of types for the Linux types. 53 */ 54 typedef int l_int; 55 typedef int32_t l_long; 56 typedef int64_t l_longlong; 57 typedef short l_short; 58 typedef unsigned int l_uint; 59 typedef uint32_t l_ulong; 60 typedef uint64_t l_ulonglong; 61 typedef unsigned short l_ushort; 62 63 typedef l_ulong l_uintptr_t; 64 typedef l_long l_clock_t; 65 typedef l_int l_daddr_t; 66 typedef l_ushort l_dev_t; 67 typedef l_uint l_gid_t; 68 typedef l_ushort l_gid16_t; 69 typedef l_ulong l_ino_t; 70 typedef l_int l_key_t; 71 typedef l_longlong l_loff_t; 72 typedef l_ushort l_mode_t; 73 typedef l_long l_off_t; 74 typedef l_int l_pid_t; 75 typedef l_uint l_size_t; 76 typedef l_long l_suseconds_t; 77 typedef l_long l_time_t; 78 typedef l_longlong l_time64_t; 79 typedef l_uint l_uid_t; 80 typedef l_ushort l_uid16_t; 81 typedef l_int l_timer_t; 82 typedef l_int l_mqd_t; 83 typedef l_ulong l_fd_mask; 84 85 #include <compat/linux/linux_siginfo.h> 86 87 typedef struct { 88 l_int val[2]; 89 } l_fsid_t; 90 91 typedef struct { 92 l_time_t tv_sec; 93 l_suseconds_t tv_usec; 94 } l_timeval; 95 96 typedef struct { 97 l_time64_t tv_sec; 98 l_time64_t tv_usec; 99 } l_sock_timeval; 100 101 #define l_fd_set fd_set 102 103 /* 104 * Miscellaneous 105 */ 106 #define LINUX_AT_COUNT 21 /* Count of used aux entry types. 107 * Keep this synchronized with 108 * linux_fixup_elf() code. 109 */ 110 struct l___sysctl_args 111 { 112 l_uintptr_t name; 113 l_int nlen; 114 l_uintptr_t oldval; 115 l_uintptr_t oldlenp; 116 l_uintptr_t newval; 117 l_size_t newlen; 118 l_ulong __spare[4]; 119 }; 120 121 /* Resource limits */ 122 #define LINUX_RLIMIT_CPU 0 123 #define LINUX_RLIMIT_FSIZE 1 124 #define LINUX_RLIMIT_DATA 2 125 #define LINUX_RLIMIT_STACK 3 126 #define LINUX_RLIMIT_CORE 4 127 #define LINUX_RLIMIT_RSS 5 128 #define LINUX_RLIMIT_NPROC 6 129 #define LINUX_RLIMIT_NOFILE 7 130 #define LINUX_RLIMIT_MEMLOCK 8 131 #define LINUX_RLIMIT_AS 9 /* Address space limit */ 132 133 #define LINUX_RLIM_NLIMITS 10 134 135 struct l_rlimit { 136 l_ulong rlim_cur; 137 l_ulong rlim_max; 138 }; 139 140 struct l_rusage { 141 l_timeval ru_utime; 142 l_timeval ru_stime; 143 l_long ru_maxrss; 144 l_long ru_ixrss; 145 l_long ru_idrss; 146 l_long ru_isrss; 147 l_long ru_minflt; 148 l_long ru_majflt; 149 l_long ru_nswap; 150 l_long ru_inblock; 151 l_long ru_oublock; 152 l_long ru_msgsnd; 153 l_long ru_msgrcv; 154 l_long ru_nsignals; 155 l_long ru_nvcsw; 156 l_long ru_nivcsw; 157 }; 158 159 struct l_mmap_argv { 160 l_uintptr_t addr; 161 l_size_t len; 162 l_int prot; 163 l_int flags; 164 l_int fd; 165 l_ulong pgoff; 166 }; 167 168 /* 169 * stat family of syscalls 170 */ 171 struct l_timespec { 172 l_time_t tv_sec; 173 l_long tv_nsec; 174 }; 175 176 /* __kernel_timespec */ 177 struct l_timespec64 { 178 l_time64_t tv_sec; 179 l_longlong tv_nsec; 180 }; 181 182 struct l_newstat { 183 l_ushort st_dev; 184 l_ushort __pad1; 185 l_ulong st_ino; 186 l_ushort st_mode; 187 l_ushort st_nlink; 188 l_ushort st_uid; 189 l_ushort st_gid; 190 l_ushort st_rdev; 191 l_ushort __pad2; 192 l_ulong st_size; 193 l_ulong st_blksize; 194 l_ulong st_blocks; 195 struct l_timespec st_atim; 196 struct l_timespec st_mtim; 197 struct l_timespec st_ctim; 198 l_ulong __unused4; 199 l_ulong __unused5; 200 }; 201 202 struct l_stat { 203 l_ushort st_dev; 204 l_ulong st_ino; 205 l_ushort st_mode; 206 l_ushort st_nlink; 207 l_ushort st_uid; 208 l_ushort st_gid; 209 l_ushort st_rdev; 210 l_long st_size; 211 struct l_timespec st_atim; 212 struct l_timespec st_mtim; 213 struct l_timespec st_ctim; 214 l_long st_blksize; 215 l_long st_blocks; 216 l_ulong st_flags; 217 l_ulong st_gen; 218 }; 219 220 struct l_stat64 { 221 l_ushort st_dev; 222 u_char __pad0[10]; 223 l_ulong __st_ino; 224 l_uint st_mode; 225 l_uint st_nlink; 226 l_ulong st_uid; 227 l_ulong st_gid; 228 l_ushort st_rdev; 229 u_char __pad3[10]; 230 l_longlong st_size; 231 l_ulong st_blksize; 232 l_ulong st_blocks; 233 l_ulong __pad4; 234 struct l_timespec st_atim; 235 struct l_timespec st_mtim; 236 struct l_timespec st_ctim; 237 l_ulonglong st_ino; 238 } __packed; 239 240 struct l_statfs64 { 241 l_int f_type; 242 l_int f_bsize; 243 uint64_t f_blocks; 244 uint64_t f_bfree; 245 uint64_t f_bavail; 246 uint64_t f_files; 247 uint64_t f_ffree; 248 l_fsid_t f_fsid; 249 l_int f_namelen; 250 l_int f_frsize; 251 l_int f_flags; 252 l_int f_spare[4]; 253 } __packed; 254 255 /* sigaction flags */ 256 #define LINUX_SA_NOCLDSTOP 0x00000001 257 #define LINUX_SA_NOCLDWAIT 0x00000002 258 #define LINUX_SA_SIGINFO 0x00000004 259 #define LINUX_SA_RESTORER 0x04000000 260 #define LINUX_SA_ONSTACK 0x08000000 261 #define LINUX_SA_RESTART 0x10000000 262 #define LINUX_SA_INTERRUPT 0x20000000 263 #define LINUX_SA_NOMASK 0x40000000 264 #define LINUX_SA_ONESHOT 0x80000000 265 266 /* sigaltstack */ 267 #define LINUX_MINSIGSTKSZ 2048 268 269 typedef l_uintptr_t l_handler_t; 270 typedef l_ulong l_osigset_t; 271 272 typedef struct { 273 l_handler_t lsa_handler; 274 l_osigset_t lsa_mask; 275 l_ulong lsa_flags; 276 l_uintptr_t lsa_restorer; 277 } l_osigaction_t; 278 279 typedef struct { 280 l_handler_t lsa_handler; 281 l_ulong lsa_flags; 282 l_uintptr_t lsa_restorer; 283 l_sigset_t lsa_mask; 284 } __packed l_sigaction_t; 285 286 typedef struct { 287 l_uintptr_t ss_sp; 288 l_int ss_flags; 289 l_size_t ss_size; 290 } l_stack_t; 291 292 /* 293 * arch specific open/fcntl flags 294 */ 295 #define LINUX_F_GETLK64 12 296 #define LINUX_F_SETLK64 13 297 #define LINUX_F_SETLKW64 14 298 299 union l_semun { 300 l_int val; 301 l_uintptr_t buf; 302 l_uintptr_t array; 303 l_uintptr_t __buf; 304 l_uintptr_t __pad; 305 }; 306 307 struct l_ifconf { 308 int ifc_len; 309 union { 310 l_uintptr_t ifcu_buf; 311 l_uintptr_t ifcu_req; 312 } ifc_ifcu; 313 }; 314 315 #define ifc_buf ifc_ifcu.ifcu_buf 316 #define ifc_req ifc_ifcu.ifcu_req 317 318 struct l_user_desc { 319 l_uint entry_number; 320 l_uint base_addr; 321 l_uint limit; 322 l_uint seg_32bit:1; 323 l_uint contents:2; 324 l_uint read_exec_only:1; 325 l_uint limit_in_pages:1; 326 l_uint seg_not_present:1; 327 l_uint useable:1; 328 }; 329 330 #define LINUX_LOWERWORD 0x0000ffff 331 332 /* 333 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 334 * These convert Linux user space descriptor to machine one. 335 */ 336 #define LINUX_LDT_entry_a(info) \ 337 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 338 ((info)->limit & LINUX_LOWERWORD)) 339 340 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 341 #define LINUX_ENTRY_B_CONTENTS 10 342 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 343 #define LINUX_ENTRY_B_BASE_ADDR 16 344 #define LINUX_ENTRY_B_USEABLE 20 345 #define LINUX_ENTRY_B_SEG32BIT 22 346 #define LINUX_ENTRY_B_LIMIT 23 347 348 #define LINUX_LDT_entry_b(info) \ 349 (((info)->base_addr & 0xff000000) | \ 350 ((info)->limit & 0xf0000) | \ 351 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 352 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 353 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 354 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 355 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 356 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 357 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 358 359 #define LINUX_LDT_empty(info) \ 360 ((info)->base_addr == 0 && \ 361 (info)->limit == 0 && \ 362 (info)->contents == 0 && \ 363 (info)->seg_not_present == 1 && \ 364 (info)->read_exec_only == 1 && \ 365 (info)->seg_32bit == 0 && \ 366 (info)->limit_in_pages == 0 && \ 367 (info)->useable == 0) 368 369 /* 370 * Macros for converting segments. 371 * They do the same as those in arch/i386/kernel/process.c in Linux. 372 */ 373 #define LINUX_GET_BASE(desc) \ 374 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 375 (((desc)->b << 16) & 0x00ff0000) | \ 376 ((desc)->b & 0xff000000)) 377 378 #define LINUX_GET_LIMIT(desc) \ 379 (((desc)->a & LINUX_LOWERWORD) | \ 380 ((desc)->b & 0xf0000)) 381 382 #define LINUX_GET_32BIT(desc) \ 383 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 384 #define LINUX_GET_CONTENTS(desc) \ 385 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 386 #define LINUX_GET_WRITABLE(desc) \ 387 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 388 #define LINUX_GET_LIMIT_PAGES(desc) \ 389 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 390 #define LINUX_GET_PRESENT(desc) \ 391 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 392 #define LINUX_GET_USEABLE(desc) \ 393 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 394 395 #ifdef _KERNEL 396 struct iovec; 397 struct uio; 398 399 struct l_iovec32 { 400 uint32_t iov_base; 401 l_size_t iov_len; 402 }; 403 404 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt, 405 struct iovec **iovp, int error); 406 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt, 407 struct uio **uiop); 408 int linux_copyout_rusage(struct rusage *ru, void *uaddr); 409 #endif /* _KERNEL */ 410 411 /* This corresponds to 'struct user_regs_struct32' in Linux. */ 412 struct linux_pt_regset32 { 413 l_uint ebx; 414 l_uint ecx; 415 l_uint edx; 416 l_uint esi; 417 l_uint edi; 418 l_uint ebp; 419 l_uint eax; 420 l_uint ds; 421 l_uint es; 422 l_uint fs; 423 l_uint gs; 424 l_uint orig_eax; 425 l_uint eip; 426 l_uint cs; 427 l_uint eflags; 428 l_uint esp; 429 l_uint ss; 430 }; 431 432 #ifdef _KERNEL 433 struct reg32; 434 435 void bsd_to_linux_regset32(const struct reg32 *b_reg, 436 struct linux_pt_regset32 *l_regset); 437 438 extern bool linux32_emulate_i386; 439 #endif /* _KERNEL */ 440 441 #endif /* !_AMD64_LINUX_H_ */ 442