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_ifmap {
308 l_ulong mem_start;
309 l_ulong mem_end;
310 l_ushort base_addr;
311 u_char irq;
312 u_char dma;
313 u_char port;
314 /* 3 bytes spare */
315 };
316
317 struct l_ifreq {
318 union {
319 char ifrn_name[LINUX_IFNAMSIZ];
320 } ifr_ifrn;
321
322 union {
323 struct l_sockaddr ifru_addr;
324 struct l_sockaddr ifru_dstaddr;
325 struct l_sockaddr ifru_broadaddr;
326 struct l_sockaddr ifru_netmask;
327 struct l_sockaddr ifru_hwaddr;
328 l_short ifru_flags[1];
329 l_int ifru_ivalue;
330 l_int ifru_mtu;
331 struct l_ifmap ifru_map;
332 char ifru_slave[LINUX_IFNAMSIZ];
333 l_uintptr_t ifru_data;
334 } ifr_ifru;
335 };
336
337 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */
338 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
339 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */
340
341 struct l_ifconf {
342 int ifc_len;
343 union {
344 l_uintptr_t ifcu_buf;
345 l_uintptr_t ifcu_req;
346 } ifc_ifcu;
347 };
348
349 #define ifc_buf ifc_ifcu.ifcu_buf
350 #define ifc_req ifc_ifcu.ifcu_req
351
352 struct l_user_desc {
353 l_uint entry_number;
354 l_uint base_addr;
355 l_uint limit;
356 l_uint seg_32bit:1;
357 l_uint contents:2;
358 l_uint read_exec_only:1;
359 l_uint limit_in_pages:1;
360 l_uint seg_not_present:1;
361 l_uint useable:1;
362 };
363
364 #define LINUX_LOWERWORD 0x0000ffff
365
366 /*
367 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
368 * These convert Linux user space descriptor to machine one.
369 */
370 #define LINUX_LDT_entry_a(info) \
371 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \
372 ((info)->limit & LINUX_LOWERWORD))
373
374 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9
375 #define LINUX_ENTRY_B_CONTENTS 10
376 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15
377 #define LINUX_ENTRY_B_BASE_ADDR 16
378 #define LINUX_ENTRY_B_USEABLE 20
379 #define LINUX_ENTRY_B_SEG32BIT 22
380 #define LINUX_ENTRY_B_LIMIT 23
381
382 #define LINUX_LDT_entry_b(info) \
383 (((info)->base_addr & 0xff000000) | \
384 ((info)->limit & 0xf0000) | \
385 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \
386 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \
387 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \
388 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \
389 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \
390 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \
391 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
392
393 #define LINUX_LDT_empty(info) \
394 ((info)->base_addr == 0 && \
395 (info)->limit == 0 && \
396 (info)->contents == 0 && \
397 (info)->seg_not_present == 1 && \
398 (info)->read_exec_only == 1 && \
399 (info)->seg_32bit == 0 && \
400 (info)->limit_in_pages == 0 && \
401 (info)->useable == 0)
402
403 /*
404 * Macros for converting segments.
405 * They do the same as those in arch/i386/kernel/process.c in Linux.
406 */
407 #define LINUX_GET_BASE(desc) \
408 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \
409 (((desc)->b << 16) & 0x00ff0000) | \
410 ((desc)->b & 0xff000000))
411
412 #define LINUX_GET_LIMIT(desc) \
413 (((desc)->a & LINUX_LOWERWORD) | \
414 ((desc)->b & 0xf0000))
415
416 #define LINUX_GET_32BIT(desc) \
417 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
418 #define LINUX_GET_CONTENTS(desc) \
419 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
420 #define LINUX_GET_WRITABLE(desc) \
421 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
422 #define LINUX_GET_LIMIT_PAGES(desc) \
423 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
424 #define LINUX_GET_PRESENT(desc) \
425 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
426 #define LINUX_GET_USEABLE(desc) \
427 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
428
429 #ifdef _KERNEL
430 struct iovec;
431 struct uio;
432
433 struct l_iovec32 {
434 uint32_t iov_base;
435 l_size_t iov_len;
436 };
437
438 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
439 struct iovec **iovp, int error);
440 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt,
441 struct uio **uiop);
442 int linux_copyout_rusage(struct rusage *ru, void *uaddr);
443 #endif /* _KERNEL */
444
445 /* robust futexes */
446 struct linux_robust_list {
447 l_uintptr_t next;
448 };
449
450 struct linux_robust_list_head {
451 struct linux_robust_list list;
452 l_long futex_offset;
453 l_uintptr_t pending_list;
454 };
455
456 /* This corresponds to 'struct user_regs_struct32' in Linux. */
457 struct linux_pt_regset32 {
458 l_uint ebx;
459 l_uint ecx;
460 l_uint edx;
461 l_uint esi;
462 l_uint edi;
463 l_uint ebp;
464 l_uint eax;
465 l_uint ds;
466 l_uint es;
467 l_uint fs;
468 l_uint gs;
469 l_uint orig_eax;
470 l_uint eip;
471 l_uint cs;
472 l_uint eflags;
473 l_uint esp;
474 l_uint ss;
475 };
476
477 #ifdef _KERNEL
478 struct reg32;
479
480 void bsd_to_linux_regset32(const struct reg32 *b_reg,
481 struct linux_pt_regset32 *l_regset);
482
483 extern bool linux32_emulate_i386;
484 #endif /* _KERNEL */
485
486 #endif /* !_AMD64_LINUX_H_ */
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