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_MAXUSER ((1ul << 32) - PAGE_SIZE)
48 #define LINUX32_SHAREDPAGE (LINUX32_MAXUSER - PAGE_SIZE)
49 #define LINUX32_USRSTACK LINUX32_SHAREDPAGE
50
51 /* XXX 16 = sizeof(linux32_ps_strings) */
52 #define LINUX32_PS_STRINGS (LINUX32_USRSTACK - 16)
53 #define LINUX32_MAXDSIZ (512 * 1024 * 1024) /* 512MB */
54 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */
55 #define LINUX32_MAXVMEM 0 /* Unlimited */
56
57 /*
58 * Provide a separate set of types for the Linux types.
59 */
60 typedef int l_int;
61 typedef int32_t l_long;
62 typedef int64_t l_longlong;
63 typedef short l_short;
64 typedef unsigned int l_uint;
65 typedef uint32_t l_ulong;
66 typedef uint64_t l_ulonglong;
67 typedef unsigned short l_ushort;
68
69 typedef l_ulong l_uintptr_t;
70 typedef l_long l_clock_t;
71 typedef l_int l_daddr_t;
72 typedef l_ushort l_dev_t;
73 typedef l_uint l_gid_t;
74 typedef l_ushort l_gid16_t;
75 typedef l_ulong l_ino_t;
76 typedef l_int l_key_t;
77 typedef l_longlong l_loff_t;
78 typedef l_ushort l_mode_t;
79 typedef l_long l_off_t;
80 typedef l_int l_pid_t;
81 typedef l_uint l_size_t;
82 typedef l_long l_suseconds_t;
83 typedef l_long l_time_t;
84 typedef l_uint l_uid_t;
85 typedef l_ushort l_uid16_t;
86 typedef l_int l_timer_t;
87 typedef l_int l_mqd_t;
88 typedef l_ulong l_fd_mask;
89
90 typedef struct {
91 l_int val[2];
92 } __packed l_fsid_t;
93
94 typedef struct {
95 l_time_t tv_sec;
96 l_suseconds_t tv_usec;
97 } l_timeval;
98
99 #define l_fd_set fd_set
100
101 /*
102 * Miscellaneous
103 */
104 #define LINUX_AT_COUNT 20 /* Count of used aux entry types.
105 * Keep this synchronized with
106 * linux_fixup_elf() code.
107 */
108 struct l___sysctl_args
109 {
110 l_uintptr_t name;
111 l_int nlen;
112 l_uintptr_t oldval;
113 l_uintptr_t oldlenp;
114 l_uintptr_t newval;
115 l_size_t newlen;
116 l_ulong __spare[4];
117 } __packed;
118
119 /* Resource limits */
120 #define LINUX_RLIMIT_CPU 0
121 #define LINUX_RLIMIT_FSIZE 1
122 #define LINUX_RLIMIT_DATA 2
123 #define LINUX_RLIMIT_STACK 3
124 #define LINUX_RLIMIT_CORE 4
125 #define LINUX_RLIMIT_RSS 5
126 #define LINUX_RLIMIT_NPROC 6
127 #define LINUX_RLIMIT_NOFILE 7
128 #define LINUX_RLIMIT_MEMLOCK 8
129 #define LINUX_RLIMIT_AS 9 /* Address space limit */
130
131 #define LINUX_RLIM_NLIMITS 10
132
133 struct l_rlimit {
134 l_ulong rlim_cur;
135 l_ulong rlim_max;
136 } __packed;
137
138 struct l_rusage {
139 l_timeval ru_utime;
140 l_timeval ru_stime;
141 l_long ru_maxrss;
142 l_long ru_ixrss;
143 l_long ru_idrss;
144 l_long ru_isrss;
145 l_long ru_minflt;
146 l_long ru_majflt;
147 l_long ru_nswap;
148 l_long ru_inblock;
149 l_long ru_oublock;
150 l_long ru_msgsnd;
151 l_long ru_msgrcv;
152 l_long ru_nsignals;
153 l_long ru_nvcsw;
154 l_long ru_nivcsw;
155 } __packed;
156
157 struct l_mmap_argv {
158 l_uintptr_t addr;
159 l_size_t len;
160 l_int prot;
161 l_int flags;
162 l_int fd;
163 l_ulong pgoff;
164 };
165
166 /*
167 * stat family of syscalls
168 */
169 struct l_timespec {
170 l_time_t tv_sec;
171 l_long tv_nsec;
172 } __packed;
173
174 struct l_newstat {
175 l_ushort st_dev;
176 l_ushort __pad1;
177 l_ulong st_ino;
178 l_ushort st_mode;
179 l_ushort st_nlink;
180 l_ushort st_uid;
181 l_ushort st_gid;
182 l_ushort st_rdev;
183 l_ushort __pad2;
184 l_ulong st_size;
185 l_ulong st_blksize;
186 l_ulong st_blocks;
187 struct l_timespec st_atim;
188 struct l_timespec st_mtim;
189 struct l_timespec st_ctim;
190 l_ulong __unused4;
191 l_ulong __unused5;
192 } __packed;
193
194 struct l_stat {
195 l_ushort st_dev;
196 l_ulong st_ino;
197 l_ushort st_mode;
198 l_ushort st_nlink;
199 l_ushort st_uid;
200 l_ushort st_gid;
201 l_ushort st_rdev;
202 l_long st_size;
203 struct l_timespec st_atim;
204 struct l_timespec st_mtim;
205 struct l_timespec st_ctim;
206 l_long st_blksize;
207 l_long st_blocks;
208 l_ulong st_flags;
209 l_ulong st_gen;
210 };
211
212 struct l_stat64 {
213 l_ushort st_dev;
214 u_char __pad0[10];
215 l_ulong __st_ino;
216 l_uint st_mode;
217 l_uint st_nlink;
218 l_ulong st_uid;
219 l_ulong st_gid;
220 l_ushort st_rdev;
221 u_char __pad3[10];
222 l_longlong st_size;
223 l_ulong st_blksize;
224 l_ulong st_blocks;
225 l_ulong __pad4;
226 struct l_timespec st_atim;
227 struct l_timespec st_mtim;
228 struct l_timespec st_ctim;
229 l_ulonglong st_ino;
230 } __packed;
231
232 struct l_statfs64 {
233 l_int f_type;
234 l_int f_bsize;
235 uint64_t f_blocks;
236 uint64_t f_bfree;
237 uint64_t f_bavail;
238 uint64_t f_files;
239 uint64_t f_ffree;
240 l_fsid_t f_fsid;
241 l_int f_namelen;
242 l_int f_frsize;
243 l_int f_flags;
244 l_int f_spare[4];
245 } __packed;
246
247 /* sigaction flags */
248 #define LINUX_SA_NOCLDSTOP 0x00000001
249 #define LINUX_SA_NOCLDWAIT 0x00000002
250 #define LINUX_SA_SIGINFO 0x00000004
251 #define LINUX_SA_RESTORER 0x04000000
252 #define LINUX_SA_ONSTACK 0x08000000
253 #define LINUX_SA_RESTART 0x10000000
254 #define LINUX_SA_INTERRUPT 0x20000000
255 #define LINUX_SA_NOMASK 0x40000000
256 #define LINUX_SA_ONESHOT 0x80000000
257
258 /* sigprocmask actions */
259 #define LINUX_SIG_BLOCK 0
260 #define LINUX_SIG_UNBLOCK 1
261 #define LINUX_SIG_SETMASK 2
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 } __packed 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 } __packed l_stack_t;
288
289 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
290 struct l_sigcontext {
291 l_uint sc_gs;
292 l_uint sc_fs;
293 l_uint sc_es;
294 l_uint sc_ds;
295 l_uint sc_edi;
296 l_uint sc_esi;
297 l_uint sc_ebp;
298 l_uint sc_esp;
299 l_uint sc_ebx;
300 l_uint sc_edx;
301 l_uint sc_ecx;
302 l_uint sc_eax;
303 l_uint sc_trapno;
304 l_uint sc_err;
305 l_uint sc_eip;
306 l_uint sc_cs;
307 l_uint sc_eflags;
308 l_uint sc_esp_at_signal;
309 l_uint sc_ss;
310 l_uint sc_387;
311 l_uint sc_mask;
312 l_uint sc_cr2;
313 } __packed;
314
315 struct l_ucontext {
316 l_ulong uc_flags;
317 l_uintptr_t uc_link;
318 l_stack_t uc_stack;
319 struct l_sigcontext uc_mcontext;
320 l_sigset_t uc_sigmask;
321 } __packed;
322
323 #define LINUX_SI_MAX_SIZE 128
324 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
325
326 typedef union l_sigval {
327 l_int sival_int;
328 l_uintptr_t sival_ptr;
329 } l_sigval_t;
330
331 typedef struct l_siginfo {
332 l_int lsi_signo;
333 l_int lsi_errno;
334 l_int lsi_code;
335 union {
336 l_int _pad[LINUX_SI_PAD_SIZE];
337
338 struct {
339 l_pid_t _pid;
340 l_uid_t _uid;
341 } __packed _kill;
342
343 struct {
344 l_timer_t _tid;
345 l_int _overrun;
346 char _pad[sizeof(l_uid_t) - sizeof(l_int)];
347 l_sigval_t _sigval;
348 l_int _sys_private;
349 } __packed _timer;
350
351 struct {
352 l_pid_t _pid; /* sender's pid */
353 l_uid_t _uid; /* sender's uid */
354 l_sigval_t _sigval;
355 } __packed _rt;
356
357 struct {
358 l_pid_t _pid; /* which child */
359 l_uid_t _uid; /* sender's uid */
360 l_int _status; /* exit code */
361 l_clock_t _utime;
362 l_clock_t _stime;
363 } __packed _sigchld;
364
365 struct {
366 l_uintptr_t _addr; /* Faulting insn/memory ref. */
367 } __packed _sigfault;
368
369 struct {
370 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */
371 l_int _fd;
372 } __packed _sigpoll;
373 } _sifields;
374 } __packed l_siginfo_t;
375
376 #define lsi_pid _sifields._kill._pid
377 #define lsi_uid _sifields._kill._uid
378 #define lsi_tid _sifields._timer._tid
379 #define lsi_overrun _sifields._timer._overrun
380 #define lsi_sys_private _sifields._timer._sys_private
381 #define lsi_status _sifields._sigchld._status
382 #define lsi_utime _sifields._sigchld._utime
383 #define lsi_stime _sifields._sigchld._stime
384 #define lsi_value _sifields._rt._sigval
385 #define lsi_int _sifields._rt._sigval.sival_int
386 #define lsi_ptr _sifields._rt._sigval.sival_ptr
387 #define lsi_addr _sifields._sigfault._addr
388 #define lsi_band _sifields._sigpoll._band
389 #define lsi_fd _sifields._sigpoll._fd
390
391 struct l_fpreg {
392 u_int16_t significand[4];
393 u_int16_t exponent;
394 } __packed;
395
396 struct l_fpxreg {
397 u_int16_t significand[4];
398 u_int16_t exponent;
399 u_int16_t padding[3];
400 } __packed;
401
402 struct l_xmmreg {
403 u_int32_t element[4];
404 } __packed;
405
406 struct l_fpstate {
407 /* Regular FPU environment */
408 u_int32_t cw;
409 u_int32_t sw;
410 u_int32_t tag;
411 u_int32_t ipoff;
412 u_int32_t cssel;
413 u_int32_t dataoff;
414 u_int32_t datasel;
415 struct l_fpreg _st[8];
416 u_int16_t status;
417 u_int16_t magic; /* 0xffff = regular FPU data */
418
419 /* FXSR FPU environment */
420 u_int32_t _fxsr_env[6]; /* env is ignored. */
421 u_int32_t mxcsr;
422 u_int32_t reserved;
423 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */
424 struct l_xmmreg _xmm[8];
425 u_int32_t padding[56];
426 } __packed;
427
428 /*
429 * We make the stack look like Linux expects it when calling a signal
430 * handler, but use the BSD way of calling the handler and sigreturn().
431 * This means that we need to pass the pointer to the handler too.
432 * It is appended to the frame to not interfere with the rest of it.
433 */
434 struct l_sigframe {
435 l_int sf_sig;
436 struct l_sigcontext sf_sc;
437 struct l_fpstate sf_fpstate;
438 l_uint sf_extramask[1];
439 l_handler_t sf_handler;
440 } __packed;
441
442 struct l_rt_sigframe {
443 l_int sf_sig;
444 l_uintptr_t sf_siginfo;
445 l_uintptr_t sf_ucontext;
446 l_siginfo_t sf_si;
447 struct l_ucontext sf_sc;
448 l_handler_t sf_handler;
449 } __packed;
450
451 /*
452 * arch specific open/fcntl flags
453 */
454 #define LINUX_F_GETLK64 12
455 #define LINUX_F_SETLK64 13
456 #define LINUX_F_SETLKW64 14
457
458 union l_semun {
459 l_int val;
460 l_uintptr_t buf;
461 l_uintptr_t array;
462 l_uintptr_t __buf;
463 l_uintptr_t __pad;
464 } __packed;
465
466 struct l_ifmap {
467 l_ulong mem_start;
468 l_ulong mem_end;
469 l_ushort base_addr;
470 u_char irq;
471 u_char dma;
472 u_char port;
473 } __packed;
474
475 struct l_ifreq {
476 union {
477 char ifrn_name[LINUX_IFNAMSIZ];
478 } ifr_ifrn;
479
480 union {
481 struct l_sockaddr ifru_addr;
482 struct l_sockaddr ifru_dstaddr;
483 struct l_sockaddr ifru_broadaddr;
484 struct l_sockaddr ifru_netmask;
485 struct l_sockaddr ifru_hwaddr;
486 l_short ifru_flags[1];
487 l_int ifru_ivalue;
488 l_int ifru_mtu;
489 struct l_ifmap ifru_map;
490 char ifru_slave[LINUX_IFNAMSIZ];
491 l_uintptr_t ifru_data;
492 } ifr_ifru;
493 } __packed;
494
495 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */
496 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
497 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */
498
499 struct l_ifconf {
500 int ifc_len;
501 union {
502 l_uintptr_t ifcu_buf;
503 l_uintptr_t ifcu_req;
504 } ifc_ifcu;
505 } __packed;
506
507 #define ifc_buf ifc_ifcu.ifcu_buf
508 #define ifc_req ifc_ifcu.ifcu_req
509
510 /*
511 * poll()
512 */
513 #define LINUX_POLLIN 0x0001
514 #define LINUX_POLLPRI 0x0002
515 #define LINUX_POLLOUT 0x0004
516 #define LINUX_POLLERR 0x0008
517 #define LINUX_POLLHUP 0x0010
518 #define LINUX_POLLNVAL 0x0020
519 #define LINUX_POLLRDNORM 0x0040
520 #define LINUX_POLLRDBAND 0x0080
521 #define LINUX_POLLWRNORM 0x0100
522 #define LINUX_POLLWRBAND 0x0200
523 #define LINUX_POLLMSG 0x0400
524
525 struct l_pollfd {
526 l_int fd;
527 l_short events;
528 l_short revents;
529 } __packed;
530
531 struct l_user_desc {
532 l_uint entry_number;
533 l_uint base_addr;
534 l_uint limit;
535 l_uint seg_32bit:1;
536 l_uint contents:2;
537 l_uint read_exec_only:1;
538 l_uint limit_in_pages:1;
539 l_uint seg_not_present:1;
540 l_uint useable:1;
541 };
542
543 #define LINUX_LOWERWORD 0x0000ffff
544
545 /*
546 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
547 * These convert Linux user space descriptor to machine one.
548 */
549 #define LINUX_LDT_entry_a(info) \
550 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \
551 ((info)->limit & LINUX_LOWERWORD))
552
553 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9
554 #define LINUX_ENTRY_B_CONTENTS 10
555 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15
556 #define LINUX_ENTRY_B_BASE_ADDR 16
557 #define LINUX_ENTRY_B_USEABLE 20
558 #define LINUX_ENTRY_B_SEG32BIT 22
559 #define LINUX_ENTRY_B_LIMIT 23
560
561 #define LINUX_LDT_entry_b(info) \
562 (((info)->base_addr & 0xff000000) | \
563 ((info)->limit & 0xf0000) | \
564 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \
565 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \
566 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \
567 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \
568 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \
569 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \
570 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
571
572 #define LINUX_LDT_empty(info) \
573 ((info)->base_addr == 0 && \
574 (info)->limit == 0 && \
575 (info)->contents == 0 && \
576 (info)->seg_not_present == 1 && \
577 (info)->read_exec_only == 1 && \
578 (info)->seg_32bit == 0 && \
579 (info)->limit_in_pages == 0 && \
580 (info)->useable == 0)
581
582 /*
583 * Macros for converting segments.
584 * They do the same as those in arch/i386/kernel/process.c in Linux.
585 */
586 #define LINUX_GET_BASE(desc) \
587 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \
588 (((desc)->b << 16) & 0x00ff0000) | \
589 ((desc)->b & 0xff000000))
590
591 #define LINUX_GET_LIMIT(desc) \
592 (((desc)->a & LINUX_LOWERWORD) | \
593 ((desc)->b & 0xf0000))
594
595 #define LINUX_GET_32BIT(desc) \
596 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
597 #define LINUX_GET_CONTENTS(desc) \
598 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
599 #define LINUX_GET_WRITABLE(desc) \
600 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
601 #define LINUX_GET_LIMIT_PAGES(desc) \
602 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
603 #define LINUX_GET_PRESENT(desc) \
604 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
605 #define LINUX_GET_USEABLE(desc) \
606 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
607
608 struct iovec;
609 struct uio;
610
611 struct l_iovec32 {
612 uint32_t iov_base;
613 l_size_t iov_len;
614 };
615
616 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
617 struct iovec **iovp, int error);
618 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt,
619 struct uio **uiop);
620 int linux_copyout_rusage(struct rusage *ru, void *uaddr);
621
622 /* robust futexes */
623 struct linux_robust_list {
624 l_uintptr_t next;
625 };
626
627 struct linux_robust_list_head {
628 struct linux_robust_list list;
629 l_long futex_offset;
630 l_uintptr_t pending_list;
631 };
632
633 #endif /* !_AMD64_LINUX_H_ */
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