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_uint l_gid_t; 67 typedef l_ushort l_gid16_t; 68 typedef l_ulong l_ino_t; 69 typedef l_int l_key_t; 70 typedef l_longlong l_loff_t; 71 typedef l_ushort l_mode_t; 72 typedef l_long l_off_t; 73 typedef l_int l_pid_t; 74 typedef l_uint l_size_t; 75 typedef l_long l_suseconds_t; 76 typedef l_long l_time_t; 77 typedef l_longlong l_time64_t; 78 typedef l_uint l_uid_t; 79 typedef l_ushort l_uid16_t; 80 typedef l_int l_timer_t; 81 typedef l_int l_mqd_t; 82 typedef l_ulong l_fd_mask; 83 84 #include <compat/linux/linux_siginfo.h> 85 86 typedef struct { 87 l_int val[2]; 88 } l_fsid_t; 89 90 typedef struct { 91 l_time_t tv_sec; 92 l_suseconds_t tv_usec; 93 } l_timeval; 94 95 typedef struct { 96 l_time64_t tv_sec; 97 l_time64_t tv_usec; 98 } l_sock_timeval; 99 100 #define l_fd_set fd_set 101 102 /* 103 * Miscellaneous 104 */ 105 #define LINUX_AT_COUNT 22 /* Count of used aux entry types. 106 * Keep this synchronized with 107 * linux_copyout_auxargs() 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_ulong st_dev; 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_ulong st_rdev; 189 l_ulong st_size; 190 l_ulong st_blksize; 191 l_ulong st_blocks; 192 struct l_timespec st_atim; 193 struct l_timespec st_mtim; 194 struct l_timespec st_ctim; 195 l_ulong __unused4; 196 l_ulong __unused5; 197 }; 198 199 /* __old_kernel_stat now */ 200 struct l_old_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_ulonglong st_dev; 220 u_char __pad0[4]; 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_ulonglong st_rdev; 227 u_char __pad3[4]; 228 l_longlong st_size; 229 l_ulong st_blksize; 230 l_ulonglong st_blocks; 231 struct l_timespec st_atim; 232 struct l_timespec st_mtim; 233 struct l_timespec st_ctim; 234 l_ulonglong st_ino; 235 } __packed; 236 237 struct l_statfs64 { 238 l_int f_type; 239 l_int f_bsize; 240 uint64_t f_blocks; 241 uint64_t f_bfree; 242 uint64_t f_bavail; 243 uint64_t f_files; 244 uint64_t f_ffree; 245 l_fsid_t f_fsid; 246 l_int f_namelen; 247 l_int f_frsize; 248 l_int f_flags; 249 l_int f_spare[4]; 250 } __packed; 251 252 /* sigaction flags */ 253 #define LINUX_SA_NOCLDSTOP 0x00000001 254 #define LINUX_SA_NOCLDWAIT 0x00000002 255 #define LINUX_SA_SIGINFO 0x00000004 256 #define LINUX_SA_RESTORER 0x04000000 257 #define LINUX_SA_ONSTACK 0x08000000 258 #define LINUX_SA_RESTART 0x10000000 259 #define LINUX_SA_INTERRUPT 0x20000000 260 #define LINUX_SA_NOMASK 0x40000000 261 #define LINUX_SA_ONESHOT 0x80000000 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 /* 290 * arch specific open/fcntl flags 291 */ 292 #define LINUX_F_GETLK64 12 293 #define LINUX_F_SETLK64 13 294 #define LINUX_F_SETLKW64 14 295 296 union l_semun { 297 l_int val; 298 l_uintptr_t buf; 299 l_uintptr_t array; 300 l_uintptr_t __buf; 301 l_uintptr_t __pad; 302 }; 303 304 struct l_ifconf { 305 int ifc_len; 306 union { 307 l_uintptr_t ifcu_buf; 308 l_uintptr_t ifcu_req; 309 } ifc_ifcu; 310 }; 311 312 #define ifc_buf ifc_ifcu.ifcu_buf 313 #define ifc_req ifc_ifcu.ifcu_req 314 315 struct l_user_desc { 316 l_uint entry_number; 317 l_uint base_addr; 318 l_uint limit; 319 l_uint seg_32bit:1; 320 l_uint contents:2; 321 l_uint read_exec_only:1; 322 l_uint limit_in_pages:1; 323 l_uint seg_not_present:1; 324 l_uint useable:1; 325 }; 326 327 #define LINUX_LOWERWORD 0x0000ffff 328 329 /* 330 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 331 * These convert Linux user space descriptor to machine one. 332 */ 333 #define LINUX_LDT_entry_a(info) \ 334 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 335 ((info)->limit & LINUX_LOWERWORD)) 336 337 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 338 #define LINUX_ENTRY_B_CONTENTS 10 339 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 340 #define LINUX_ENTRY_B_BASE_ADDR 16 341 #define LINUX_ENTRY_B_USEABLE 20 342 #define LINUX_ENTRY_B_SEG32BIT 22 343 #define LINUX_ENTRY_B_LIMIT 23 344 345 #define LINUX_LDT_entry_b(info) \ 346 (((info)->base_addr & 0xff000000) | \ 347 ((info)->limit & 0xf0000) | \ 348 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 349 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 350 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 351 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 352 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 353 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 354 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 355 356 #define LINUX_LDT_empty(info) \ 357 ((info)->base_addr == 0 && \ 358 (info)->limit == 0 && \ 359 (info)->contents == 0 && \ 360 (info)->seg_not_present == 1 && \ 361 (info)->read_exec_only == 1 && \ 362 (info)->seg_32bit == 0 && \ 363 (info)->limit_in_pages == 0 && \ 364 (info)->useable == 0) 365 366 /* 367 * Macros for converting segments. 368 * They do the same as those in arch/i386/kernel/process.c in Linux. 369 */ 370 #define LINUX_GET_BASE(desc) \ 371 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 372 (((desc)->b << 16) & 0x00ff0000) | \ 373 ((desc)->b & 0xff000000)) 374 375 #define LINUX_GET_LIMIT(desc) \ 376 (((desc)->a & LINUX_LOWERWORD) | \ 377 ((desc)->b & 0xf0000)) 378 379 #define LINUX_GET_32BIT(desc) \ 380 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 381 #define LINUX_GET_CONTENTS(desc) \ 382 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 383 #define LINUX_GET_WRITABLE(desc) \ 384 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 385 #define LINUX_GET_LIMIT_PAGES(desc) \ 386 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 387 #define LINUX_GET_PRESENT(desc) \ 388 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 389 #define LINUX_GET_USEABLE(desc) \ 390 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 391 392 #ifdef _KERNEL 393 struct iovec; 394 struct uio; 395 396 struct l_iovec32 { 397 uint32_t iov_base; 398 l_size_t iov_len; 399 }; 400 401 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt, 402 struct iovec **iovp, int error); 403 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt, 404 struct uio **uiop); 405 int linux_copyout_rusage(struct rusage *ru, void *uaddr); 406 #endif /* _KERNEL */ 407 408 /* This corresponds to 'struct user_regs_struct32' in Linux. */ 409 struct linux_pt_regset32 { 410 l_uint ebx; 411 l_uint ecx; 412 l_uint edx; 413 l_uint esi; 414 l_uint edi; 415 l_uint ebp; 416 l_uint eax; 417 l_uint ds; 418 l_uint es; 419 l_uint fs; 420 l_uint gs; 421 l_uint orig_eax; 422 l_uint eip; 423 l_uint cs; 424 l_uint eflags; 425 l_uint esp; 426 l_uint ss; 427 }; 428 429 #ifdef _KERNEL 430 struct reg32; 431 432 void bsd_to_linux_regset32(const struct reg32 *b_reg, 433 struct linux_pt_regset32 *l_regset); 434 int linux_ptrace_peekuser(struct thread *td, pid_t pid, 435 void *addr, void *data); 436 int linux_ptrace_pokeuser(struct thread *td, pid_t pid, 437 void *addr, void *data); 438 439 extern bool linux32_emulate_i386; 440 #endif /* _KERNEL */ 441 442 #endif /* !_AMD64_LINUX_H_ */ 443