1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1994-1996 Søren Schmidt 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _I386_LINUX_H_ 30 #define _I386_LINUX_H_ 31 32 #include <sys/abi_compat.h> 33 34 #include <compat/linux/linux.h> 35 #include <i386/linux/linux_syscall.h> 36 37 #define LINUX_LEGACY_SYSCALLS 38 39 #define LINUX_DTRACE linuxulator 40 41 /* 42 * Provide a separate set of types for the Linux types. 43 */ 44 typedef int l_int; 45 typedef int32_t l_long; 46 typedef int64_t l_longlong; 47 typedef short l_short; 48 typedef unsigned int l_uint; 49 typedef uint32_t l_ulong; 50 typedef uint64_t l_ulonglong; 51 typedef unsigned short l_ushort; 52 53 typedef char *l_caddr_t; 54 typedef l_ulong l_uintptr_t; 55 typedef l_long l_clock_t; 56 typedef l_int l_daddr_t; 57 typedef l_uint l_gid_t; 58 typedef l_ushort l_gid16_t; 59 typedef l_ulong l_ino_t; 60 typedef l_int l_key_t; 61 typedef l_longlong l_loff_t; 62 typedef l_ushort l_mode_t; 63 typedef l_long l_off_t; 64 typedef l_int l_pid_t; 65 typedef l_uint l_size_t; 66 typedef l_long l_suseconds_t; 67 typedef l_long l_time_t; 68 typedef l_longlong l_time64_t; 69 typedef l_uint l_uid_t; 70 typedef l_ushort l_uid16_t; 71 typedef l_int l_timer_t; 72 typedef l_int l_mqd_t; 73 typedef l_ulong l_fd_mask; 74 75 #include <compat/linux/linux_siginfo.h> 76 77 typedef struct { 78 l_int val[2]; 79 } l_fsid_t; 80 81 typedef struct { 82 l_time_t tv_sec; 83 l_suseconds_t tv_usec; 84 } l_timeval; 85 86 typedef struct { 87 l_time64_t tv_sec; 88 l_time64_t tv_usec; 89 } l_sock_timeval; 90 91 #define l_fd_set fd_set 92 93 /* 94 * Miscellaneous 95 */ 96 #define LINUX_AT_COUNT 22 /* Count of used aux entry types. 97 * Keep this synchronized with 98 * linux_copyout_auxargs() code. 99 */ 100 struct l___sysctl_args 101 { 102 l_int *name; 103 l_int nlen; 104 void *oldval; 105 l_size_t *oldlenp; 106 void *newval; 107 l_size_t newlen; 108 l_ulong __spare[4]; 109 }; 110 111 /* Resource limits */ 112 #define LINUX_RLIMIT_CPU 0 113 #define LINUX_RLIMIT_FSIZE 1 114 #define LINUX_RLIMIT_DATA 2 115 #define LINUX_RLIMIT_STACK 3 116 #define LINUX_RLIMIT_CORE 4 117 #define LINUX_RLIMIT_RSS 5 118 #define LINUX_RLIMIT_NPROC 6 119 #define LINUX_RLIMIT_NOFILE 7 120 #define LINUX_RLIMIT_MEMLOCK 8 121 #define LINUX_RLIMIT_AS 9 /* Address space limit */ 122 123 #define LINUX_RLIM_NLIMITS 10 124 125 struct l_rlimit { 126 l_ulong rlim_cur; 127 l_ulong rlim_max; 128 }; 129 130 struct l_mmap_argv { 131 l_uintptr_t addr; 132 l_size_t len; 133 l_int prot; 134 l_int flags; 135 l_int fd; 136 l_off_t pgoff; 137 }; 138 139 /* 140 * stat family of syscalls 141 */ 142 struct l_timespec { 143 l_time_t tv_sec; 144 l_long tv_nsec; 145 }; 146 147 /* __kernel_timespec */ 148 struct l_timespec64 { 149 l_time64_t tv_sec; 150 l_longlong tv_nsec; 151 }; 152 153 struct l_newstat { 154 l_ulong st_dev; 155 l_ulong st_ino; 156 l_ushort st_mode; 157 l_ushort st_nlink; 158 l_ushort st_uid; 159 l_ushort st_gid; 160 l_ulong st_rdev; 161 l_ulong st_size; 162 l_ulong st_blksize; 163 l_ulong st_blocks; 164 struct l_timespec st_atim; 165 struct l_timespec st_mtim; 166 struct l_timespec st_ctim; 167 l_ulong __unused4; 168 l_ulong __unused5; 169 }; 170 171 /* __old_kernel_stat now */ 172 struct l_old_stat { 173 l_ushort st_dev; 174 l_ulong st_ino; 175 l_ushort st_mode; 176 l_ushort st_nlink; 177 l_ushort st_uid; 178 l_ushort st_gid; 179 l_ushort st_rdev; 180 l_long st_size; 181 struct l_timespec st_atim; 182 struct l_timespec st_mtim; 183 struct l_timespec st_ctim; 184 l_long st_blksize; 185 l_long st_blocks; 186 l_ulong st_flags; 187 l_ulong st_gen; 188 }; 189 190 struct l_stat64 { 191 l_ulonglong st_dev; 192 u_char __pad0[4]; 193 l_ulong __st_ino; 194 l_uint st_mode; 195 l_uint st_nlink; 196 l_ulong st_uid; 197 l_ulong st_gid; 198 l_ulonglong st_rdev; 199 u_char __pad3[4]; 200 l_longlong st_size; 201 l_ulong st_blksize; 202 l_ulonglong st_blocks; 203 struct l_timespec st_atim; 204 struct l_timespec st_mtim; 205 struct l_timespec st_ctim; 206 l_ulonglong st_ino; 207 }; 208 209 struct l_statfs64 { 210 l_int f_type; 211 l_int f_bsize; 212 uint64_t f_blocks; 213 uint64_t f_bfree; 214 uint64_t f_bavail; 215 uint64_t f_files; 216 uint64_t f_ffree; 217 l_fsid_t f_fsid; 218 l_int f_namelen; 219 l_int f_frsize; 220 l_int f_flags; 221 l_int f_spare[4]; 222 }; 223 224 /* sigaction flags */ 225 #define LINUX_SA_NOCLDSTOP 0x00000001 226 #define LINUX_SA_NOCLDWAIT 0x00000002 227 #define LINUX_SA_SIGINFO 0x00000004 228 #define LINUX_SA_RESTORER 0x04000000 229 #define LINUX_SA_ONSTACK 0x08000000 230 #define LINUX_SA_RESTART 0x10000000 231 #define LINUX_SA_INTERRUPT 0x20000000 232 #define LINUX_SA_NOMASK 0x40000000 233 #define LINUX_SA_ONESHOT 0x80000000 234 235 /* sigaltstack */ 236 #define LINUX_MINSIGSTKSZ 2048 237 238 typedef void (*l_handler_t)(l_int); 239 typedef l_ulong l_osigset_t; 240 241 typedef struct { 242 l_handler_t lsa_handler; 243 l_osigset_t lsa_mask; 244 l_ulong lsa_flags; 245 void (*lsa_restorer)(void); 246 } l_osigaction_t; 247 248 typedef struct { 249 l_handler_t lsa_handler; 250 l_ulong lsa_flags; 251 void (*lsa_restorer)(void); 252 l_sigset_t lsa_mask; 253 } l_sigaction_t; 254 255 typedef struct { 256 l_uintptr_t ss_sp; 257 l_int ss_flags; 258 l_size_t ss_size; 259 } l_stack_t; 260 261 extern struct sysentvec linux_sysvec; 262 263 /* 264 * arch specific open/fcntl flags 265 */ 266 #define LINUX_F_GETLK64 12 267 #define LINUX_F_SETLK64 13 268 #define LINUX_F_SETLKW64 14 269 270 union l_semun { 271 l_int val; 272 l_uintptr_t buf; 273 l_ushort *array; 274 l_uintptr_t __buf; 275 l_uintptr_t __pad; 276 }; 277 278 struct l_user_desc { 279 l_uint entry_number; 280 l_uint base_addr; 281 l_uint limit; 282 l_uint seg_32bit:1; 283 l_uint contents:2; 284 l_uint read_exec_only:1; 285 l_uint limit_in_pages:1; 286 l_uint seg_not_present:1; 287 l_uint useable:1; 288 }; 289 290 struct l_desc_struct { 291 unsigned long a, b; 292 }; 293 294 #define LINUX_LOWERWORD 0x0000ffff 295 296 /* 297 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 298 * These convert Linux user space descriptor to machine one. 299 */ 300 #define LINUX_LDT_entry_a(info) \ 301 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 302 ((info)->limit & LINUX_LOWERWORD)) 303 304 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 305 #define LINUX_ENTRY_B_CONTENTS 10 306 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 307 #define LINUX_ENTRY_B_BASE_ADDR 16 308 #define LINUX_ENTRY_B_USEABLE 20 309 #define LINUX_ENTRY_B_SEG32BIT 22 310 #define LINUX_ENTRY_B_LIMIT 23 311 312 #define LINUX_LDT_entry_b(info) \ 313 (((info)->base_addr & 0xff000000) | \ 314 ((info)->limit & 0xf0000) | \ 315 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 316 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \ 317 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 318 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \ 319 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 320 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 321 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 322 323 #define LINUX_LDT_empty(info) \ 324 ((info)->base_addr == 0 && \ 325 (info)->limit == 0 && \ 326 (info)->contents == 0 && \ 327 (info)->seg_not_present == 1 && \ 328 (info)->read_exec_only == 1 && \ 329 (info)->seg_32bit == 0 && \ 330 (info)->limit_in_pages == 0 && \ 331 (info)->useable == 0) 332 333 /* 334 * Macros for converting segments. 335 * They do the same as those in arch/i386/kernel/process.c in Linux. 336 */ 337 #define LINUX_GET_BASE(desc) \ 338 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 339 (((desc)->b << 16) & 0x00ff0000) | \ 340 ((desc)->b & 0xff000000)) 341 342 #define LINUX_GET_LIMIT(desc) \ 343 (((desc)->a & LINUX_LOWERWORD) | \ 344 ((desc)->b & 0xf0000)) 345 346 #define LINUX_GET_32BIT(desc) \ 347 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 348 #define LINUX_GET_CONTENTS(desc) \ 349 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 350 #define LINUX_GET_WRITABLE(desc) \ 351 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 352 #define LINUX_GET_LIMIT_PAGES(desc) \ 353 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 354 #define LINUX_GET_PRESENT(desc) \ 355 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 356 #define LINUX_GET_USEABLE(desc) \ 357 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 358 359 #define linux_copyout_rusage(r, u) copyout(r, u, sizeof(*r)) 360 361 /* This corresponds to 'struct user_regs_struct' in Linux. */ 362 struct linux_pt_regset { 363 l_uint ebx; 364 l_uint ecx; 365 l_uint edx; 366 l_uint esi; 367 l_uint edi; 368 l_uint ebp; 369 l_uint eax; 370 l_uint ds; 371 l_uint es; 372 l_uint fs; 373 l_uint gs; 374 l_uint orig_eax; 375 l_uint eip; 376 l_uint cs; 377 l_uint eflags; 378 l_uint esp; 379 l_uint ss; 380 }; 381 382 #ifdef _KERNEL 383 struct reg; 384 385 void bsd_to_linux_regset(const struct reg *b_reg, 386 struct linux_pt_regset *l_regset); 387 #endif /* _KERNEL */ 388 389 #endif /* !_I386_LINUX_H_ */ 390