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 33 #ifndef _AMD64_LINUX_H_ 34 #define _AMD64_LINUX_H_ 35 36 #include <sys/abi_compat.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_MAXDSIZ (512 * 1024 * 1024) /* 512MB */ 46 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */ 47 #define LINUX32_MAXVMEM 0 /* Unlimited */ 48 49 #define LINUX_ARCHWANT_MMAP2PGOFF 1 /* 32-bit off_t want offset 50 * represented in multiples 51 * of page size. */ 52 53 /* 54 * Provide a separate set of types for the Linux types. 55 */ 56 typedef int l_int; 57 typedef int32_t l_long; 58 typedef int64_t l_longlong; 59 typedef short l_short; 60 typedef unsigned int l_uint; 61 typedef uint32_t l_ulong; 62 typedef uint64_t l_ulonglong; 63 typedef unsigned short l_ushort; 64 65 typedef l_ulong l_uintptr_t; 66 typedef l_long l_clock_t; 67 typedef l_int l_daddr_t; 68 typedef l_uint l_gid_t; 69 typedef l_ushort l_gid16_t; 70 typedef l_ulong l_ino_t; 71 typedef l_int l_key_t; 72 typedef l_longlong l_loff_t; 73 typedef l_ushort l_mode_t; 74 typedef l_long l_off_t; 75 typedef l_int l_pid_t; 76 typedef l_uint l_size_t; 77 typedef l_long l_suseconds_t; 78 typedef l_long l_time_t; 79 typedef l_longlong l_time64_t; 80 typedef l_uint l_uid_t; 81 typedef l_ushort l_uid16_t; 82 typedef l_int l_timer_t; 83 typedef l_int l_mqd_t; 84 typedef l_ulong l_fd_mask; 85 86 #include <compat/linux/linux_siginfo.h> 87 88 typedef struct { 89 l_int val[2]; 90 } l_fsid_t; 91 92 typedef struct { 93 l_time_t tv_sec; 94 l_suseconds_t tv_usec; 95 } l_timeval; 96 97 typedef struct { 98 l_time64_t tv_sec; 99 l_time64_t tv_usec; 100 } l_sock_timeval; 101 102 #define l_fd_set fd_set 103 104 /* 105 * Miscellaneous 106 */ 107 #define LINUX_AT_COUNT 22 /* Count of used aux entry types. 108 * Keep this synchronized with 109 * linux_copyout_auxargs() code. 110 */ 111 struct l___sysctl_args 112 { 113 l_uintptr_t name; 114 l_int nlen; 115 l_uintptr_t oldval; 116 l_uintptr_t oldlenp; 117 l_uintptr_t newval; 118 l_size_t newlen; 119 l_ulong __spare[4]; 120 }; 121 122 /* Resource limits */ 123 #define LINUX_RLIMIT_CPU 0 124 #define LINUX_RLIMIT_FSIZE 1 125 #define LINUX_RLIMIT_DATA 2 126 #define LINUX_RLIMIT_STACK 3 127 #define LINUX_RLIMIT_CORE 4 128 #define LINUX_RLIMIT_RSS 5 129 #define LINUX_RLIMIT_NPROC 6 130 #define LINUX_RLIMIT_NOFILE 7 131 #define LINUX_RLIMIT_MEMLOCK 8 132 #define LINUX_RLIMIT_AS 9 /* Address space limit */ 133 134 #define LINUX_RLIM_NLIMITS 10 135 136 struct l_rlimit { 137 l_ulong rlim_cur; 138 l_ulong rlim_max; 139 }; 140 141 struct l_rusage { 142 l_timeval ru_utime; 143 l_timeval ru_stime; 144 l_long ru_maxrss; 145 l_long ru_ixrss; 146 l_long ru_idrss; 147 l_long ru_isrss; 148 l_long ru_minflt; 149 l_long ru_majflt; 150 l_long ru_nswap; 151 l_long ru_inblock; 152 l_long ru_oublock; 153 l_long ru_msgsnd; 154 l_long ru_msgrcv; 155 l_long ru_nsignals; 156 l_long ru_nvcsw; 157 l_long ru_nivcsw; 158 }; 159 160 struct l_mmap_argv { 161 l_uintptr_t addr; 162 l_size_t len; 163 l_int prot; 164 l_int flags; 165 l_int fd; 166 l_ulong pgoff; 167 }; 168 169 /* 170 * stat family of syscalls 171 */ 172 struct l_timespec { 173 l_time_t tv_sec; 174 l_long tv_nsec; 175 }; 176 177 /* __kernel_timespec */ 178 struct l_timespec64 { 179 l_time64_t tv_sec; 180 l_longlong tv_nsec; 181 }; 182 183 struct l_newstat { 184 l_ulong st_dev; 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_ulong st_rdev; 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 /* __old_kernel_stat now */ 202 struct l_old_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_ulonglong st_dev; 222 u_char __pad0[4]; 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_ulonglong st_rdev; 229 u_char __pad3[4]; 230 l_longlong st_size; 231 l_ulong st_blksize; 232 l_ulonglong st_blocks; 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 /* sigaltstack */ 266 #define LINUX_MINSIGSTKSZ 2048 267 268 typedef l_uintptr_t l_handler_t; 269 typedef l_ulong l_osigset_t; 270 271 typedef struct { 272 l_handler_t lsa_handler; 273 l_osigset_t lsa_mask; 274 l_ulong lsa_flags; 275 l_uintptr_t lsa_restorer; 276 } l_osigaction_t; 277 278 typedef struct { 279 l_handler_t lsa_handler; 280 l_ulong lsa_flags; 281 l_uintptr_t lsa_restorer; 282 l_sigset_t lsa_mask; 283 } __packed l_sigaction_t; 284 285 typedef struct { 286 l_uintptr_t ss_sp; 287 l_int ss_flags; 288 l_size_t ss_size; 289 } l_stack_t; 290 291 /* 292 * arch specific open/fcntl flags 293 */ 294 #define LINUX_F_GETLK64 12 295 #define LINUX_F_SETLK64 13 296 #define LINUX_F_SETLKW64 14 297 298 union l_semun { 299 l_int val; 300 l_uintptr_t buf; 301 l_uintptr_t array; 302 l_uintptr_t __buf; 303 l_uintptr_t __pad; 304 }; 305 306 struct l_ifconf { 307 int ifc_len; 308 union { 309 l_uintptr_t ifcu_buf; 310 l_uintptr_t ifcu_req; 311 } ifc_ifcu; 312 }; 313 314 #define ifc_buf ifc_ifcu.ifcu_buf 315 #define ifc_req ifc_ifcu.ifcu_req 316 317 struct l_user_desc { 318 l_uint entry_number; 319 l_uint base_addr; 320 l_uint limit; 321 l_uint seg_32bit:1; 322 l_uint contents:2; 323 l_uint read_exec_only:1; 324 l_uint limit_in_pages:1; 325 l_uint seg_not_present:1; 326 l_uint useable:1; 327 }; 328 329 #define LINUX_LOWERWORD 0x0000ffff 330 331 /* 332 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 333 * These convert Linux user space descriptor to machine one. 334 */ 335 #define LINUX_LDT_entry_a(info) \ 336 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 337 ((info)->limit & LINUX_LOWERWORD)) 338 339 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 340 #define LINUX_ENTRY_B_CONTENTS 10 341 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 342 #define LINUX_ENTRY_B_BASE_ADDR 16 343 #define LINUX_ENTRY_B_USEABLE 20 344 #define LINUX_ENTRY_B_SEG32BIT 22 345 #define LINUX_ENTRY_B_LIMIT 23 346 347 #define LINUX_LDT_entry_b(info) \ 348 (((info)->base_addr & 0xff000000) | \ 349 ((info)->limit & 0xf0000) | \ 350 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 351 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 352 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 353 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 354 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 355 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 356 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 357 358 #define LINUX_LDT_empty(info) \ 359 ((info)->base_addr == 0 && \ 360 (info)->limit == 0 && \ 361 (info)->contents == 0 && \ 362 (info)->seg_not_present == 1 && \ 363 (info)->read_exec_only == 1 && \ 364 (info)->seg_32bit == 0 && \ 365 (info)->limit_in_pages == 0 && \ 366 (info)->useable == 0) 367 368 /* 369 * Macros for converting segments. 370 * They do the same as those in arch/i386/kernel/process.c in Linux. 371 */ 372 #define LINUX_GET_BASE(desc) \ 373 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 374 (((desc)->b << 16) & 0x00ff0000) | \ 375 ((desc)->b & 0xff000000)) 376 377 #define LINUX_GET_LIMIT(desc) \ 378 (((desc)->a & LINUX_LOWERWORD) | \ 379 ((desc)->b & 0xf0000)) 380 381 #define LINUX_GET_32BIT(desc) \ 382 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 383 #define LINUX_GET_CONTENTS(desc) \ 384 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 385 #define LINUX_GET_WRITABLE(desc) \ 386 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 387 #define LINUX_GET_LIMIT_PAGES(desc) \ 388 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 389 #define LINUX_GET_PRESENT(desc) \ 390 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 391 #define LINUX_GET_USEABLE(desc) \ 392 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 393 394 #ifdef _KERNEL 395 int linux_copyout_rusage(struct rusage *ru, void *uaddr); 396 #endif /* _KERNEL */ 397 398 /* This corresponds to 'struct user_regs_struct32' in Linux. */ 399 struct linux_pt_regset32 { 400 l_uint ebx; 401 l_uint ecx; 402 l_uint edx; 403 l_uint esi; 404 l_uint edi; 405 l_uint ebp; 406 l_uint eax; 407 l_uint ds; 408 l_uint es; 409 l_uint fs; 410 l_uint gs; 411 l_uint orig_eax; 412 l_uint eip; 413 l_uint cs; 414 l_uint eflags; 415 l_uint esp; 416 l_uint ss; 417 }; 418 419 #ifdef _KERNEL 420 struct reg32; 421 422 void bsd_to_linux_regset32(const struct reg32 *b_reg, 423 struct linux_pt_regset32 *l_regset); 424 int linux_ptrace_peekuser(struct thread *td, pid_t pid, 425 void *addr, void *data); 426 int linux_ptrace_pokeuser(struct thread *td, pid_t pid, 427 void *addr, void *data); 428 429 extern bool linux32_emulate_i386; 430 #endif /* _KERNEL */ 431 432 #endif /* !_AMD64_LINUX_H_ */ 433