1 /*-
2 * Copyright (c) 2004 Tim J. Robbins
3 * Copyright (c) 2001 Doug Rabson
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 * in this position and unchanged.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $FreeBSD$
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 /*
44 * debugging support
45 */
46 extern u_char linux_debug_map[];
47 #define ldebug(name) isclr(linux_debug_map, LINUX32_SYS_linux_ ## name)
48 #define ARGS(nm, fmt) "linux(%ld/%ld): "#nm"("fmt")\n", \
49 (long)td->td_proc->p_pid, (long)td->td_tid
50 #define LMSG(fmt) "linux(%ld/%ld): "fmt"\n", \
51 (long)td->td_proc->p_pid, (long)td->td_tid
52 #define LINUX_DTRACE linuxulator32
53
54 #define LINUX32_MAXUSER ((1ul << 32) - PAGE_SIZE)
55 #define LINUX32_SHAREDPAGE (LINUX32_MAXUSER - PAGE_SIZE)
56 #define LINUX32_USRSTACK LINUX32_SHAREDPAGE
57
58 /* XXX 16 = sizeof(linux32_ps_strings) */
59 #define LINUX32_PS_STRINGS (LINUX32_USRSTACK - 16)
60 #define LINUX32_MAXDSIZ (512 * 1024 * 1024) /* 512MB */
61 #define LINUX32_MAXSSIZ (64 * 1024 * 1024) /* 64MB */
62 #define LINUX32_MAXVMEM 0 /* Unlimited */
63
64 /*
65 * Provide a separate set of types for the Linux types.
66 */
67 typedef int l_int;
68 typedef int32_t l_long;
69 typedef int64_t l_longlong;
70 typedef short l_short;
71 typedef unsigned int l_uint;
72 typedef uint32_t l_ulong;
73 typedef uint64_t l_ulonglong;
74 typedef unsigned short l_ushort;
75
76 typedef l_ulong l_uintptr_t;
77 typedef l_long l_clock_t;
78 typedef l_int l_daddr_t;
79 typedef l_ushort l_dev_t;
80 typedef l_uint l_gid_t;
81 typedef l_ushort l_gid16_t;
82 typedef l_ulong l_ino_t;
83 typedef l_int l_key_t;
84 typedef l_longlong l_loff_t;
85 typedef l_ushort l_mode_t;
86 typedef l_long l_off_t;
87 typedef l_int l_pid_t;
88 typedef l_uint l_size_t;
89 typedef l_long l_suseconds_t;
90 typedef l_long l_time_t;
91 typedef l_uint l_uid_t;
92 typedef l_ushort l_uid16_t;
93 typedef l_int l_timer_t;
94 typedef l_int l_mqd_t;
95 typedef l_ulong l_fd_mask;
96
97 typedef struct {
98 l_int val[2];
99 } __packed l_fsid_t;
100
101 typedef struct {
102 l_time_t tv_sec;
103 l_suseconds_t tv_usec;
104 } l_timeval;
105
106 #define l_fd_set fd_set
107
108 /*
109 * Miscellaneous
110 */
111 #define LINUX_AT_COUNT 20 /* Count of used aux entry types.
112 * Keep this synchronized with
113 * linux_fixup_elf() code.
114 */
115 struct l___sysctl_args
116 {
117 l_uintptr_t name;
118 l_int nlen;
119 l_uintptr_t oldval;
120 l_uintptr_t oldlenp;
121 l_uintptr_t newval;
122 l_size_t newlen;
123 l_ulong __spare[4];
124 } __packed;
125
126 /* Resource limits */
127 #define LINUX_RLIMIT_CPU 0
128 #define LINUX_RLIMIT_FSIZE 1
129 #define LINUX_RLIMIT_DATA 2
130 #define LINUX_RLIMIT_STACK 3
131 #define LINUX_RLIMIT_CORE 4
132 #define LINUX_RLIMIT_RSS 5
133 #define LINUX_RLIMIT_NPROC 6
134 #define LINUX_RLIMIT_NOFILE 7
135 #define LINUX_RLIMIT_MEMLOCK 8
136 #define LINUX_RLIMIT_AS 9 /* Address space limit */
137
138 #define LINUX_RLIM_NLIMITS 10
139
140 struct l_rlimit {
141 l_ulong rlim_cur;
142 l_ulong rlim_max;
143 } __packed;
144
145 struct l_rusage {
146 l_timeval ru_utime;
147 l_timeval ru_stime;
148 l_long ru_maxrss;
149 l_long ru_ixrss;
150 l_long ru_idrss;
151 l_long ru_isrss;
152 l_long ru_minflt;
153 l_long ru_majflt;
154 l_long ru_nswap;
155 l_long ru_inblock;
156 l_long ru_oublock;
157 l_long ru_msgsnd;
158 l_long ru_msgrcv;
159 l_long ru_nsignals;
160 l_long ru_nvcsw;
161 l_long ru_nivcsw;
162 } __packed;
163
164 struct l_mmap_argv {
165 l_uintptr_t addr;
166 l_size_t len;
167 l_int prot;
168 l_int flags;
169 l_int fd;
170 l_ulong pgoff;
171 };
172
173 /*
174 * stat family of syscalls
175 */
176 struct l_timespec {
177 l_time_t tv_sec;
178 l_long tv_nsec;
179 } __packed;
180
181 struct l_newstat {
182 l_ushort st_dev;
183 l_ushort __pad1;
184 l_ulong st_ino;
185 l_ushort st_mode;
186 l_ushort st_nlink;
187 l_ushort st_uid;
188 l_ushort st_gid;
189 l_ushort st_rdev;
190 l_ushort __pad2;
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 } __packed;
200
201 struct l_stat {
202 l_ushort st_dev;
203 l_ulong st_ino;
204 l_ushort st_mode;
205 l_ushort st_nlink;
206 l_ushort st_uid;
207 l_ushort st_gid;
208 l_ushort st_rdev;
209 l_long st_size;
210 struct l_timespec st_atim;
211 struct l_timespec st_mtim;
212 struct l_timespec st_ctim;
213 l_long st_blksize;
214 l_long st_blocks;
215 l_ulong st_flags;
216 l_ulong st_gen;
217 };
218
219 struct l_stat64 {
220 l_ushort st_dev;
221 u_char __pad0[10];
222 l_ulong __st_ino;
223 l_uint st_mode;
224 l_uint st_nlink;
225 l_ulong st_uid;
226 l_ulong st_gid;
227 l_ushort st_rdev;
228 u_char __pad3[10];
229 l_longlong st_size;
230 l_ulong st_blksize;
231 l_ulong st_blocks;
232 l_ulong __pad4;
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 /* sigprocmask actions */
266 #define LINUX_SIG_BLOCK 0
267 #define LINUX_SIG_UNBLOCK 1
268 #define LINUX_SIG_SETMASK 2
269
270 /* sigaltstack */
271 #define LINUX_MINSIGSTKSZ 2048
272
273 typedef l_uintptr_t l_handler_t;
274 typedef l_ulong l_osigset_t;
275
276 typedef struct {
277 l_handler_t lsa_handler;
278 l_osigset_t lsa_mask;
279 l_ulong lsa_flags;
280 l_uintptr_t lsa_restorer;
281 } __packed l_osigaction_t;
282
283 typedef struct {
284 l_handler_t lsa_handler;
285 l_ulong lsa_flags;
286 l_uintptr_t lsa_restorer;
287 l_sigset_t lsa_mask;
288 } __packed l_sigaction_t;
289
290 typedef struct {
291 l_uintptr_t ss_sp;
292 l_int ss_flags;
293 l_size_t ss_size;
294 } __packed l_stack_t;
295
296 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
297 struct l_sigcontext {
298 l_uint sc_gs;
299 l_uint sc_fs;
300 l_uint sc_es;
301 l_uint sc_ds;
302 l_uint sc_edi;
303 l_uint sc_esi;
304 l_uint sc_ebp;
305 l_uint sc_esp;
306 l_uint sc_ebx;
307 l_uint sc_edx;
308 l_uint sc_ecx;
309 l_uint sc_eax;
310 l_uint sc_trapno;
311 l_uint sc_err;
312 l_uint sc_eip;
313 l_uint sc_cs;
314 l_uint sc_eflags;
315 l_uint sc_esp_at_signal;
316 l_uint sc_ss;
317 l_uint sc_387;
318 l_uint sc_mask;
319 l_uint sc_cr2;
320 } __packed;
321
322 struct l_ucontext {
323 l_ulong uc_flags;
324 l_uintptr_t uc_link;
325 l_stack_t uc_stack;
326 struct l_sigcontext uc_mcontext;
327 l_sigset_t uc_sigmask;
328 } __packed;
329
330 #define LINUX_SI_MAX_SIZE 128
331 #define LINUX_SI_PAD_SIZE ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
332
333 typedef union l_sigval {
334 l_int sival_int;
335 l_uintptr_t sival_ptr;
336 } l_sigval_t;
337
338 typedef struct l_siginfo {
339 l_int lsi_signo;
340 l_int lsi_errno;
341 l_int lsi_code;
342 union {
343 l_int _pad[LINUX_SI_PAD_SIZE];
344
345 struct {
346 l_pid_t _pid;
347 l_uid_t _uid;
348 } __packed _kill;
349
350 struct {
351 l_timer_t _tid;
352 l_int _overrun;
353 char _pad[sizeof(l_uid_t) - sizeof(l_int)];
354 l_sigval_t _sigval;
355 l_int _sys_private;
356 } __packed _timer;
357
358 struct {
359 l_pid_t _pid; /* sender's pid */
360 l_uid_t _uid; /* sender's uid */
361 l_sigval_t _sigval;
362 } __packed _rt;
363
364 struct {
365 l_pid_t _pid; /* which child */
366 l_uid_t _uid; /* sender's uid */
367 l_int _status; /* exit code */
368 l_clock_t _utime;
369 l_clock_t _stime;
370 } __packed _sigchld;
371
372 struct {
373 l_uintptr_t _addr; /* Faulting insn/memory ref. */
374 } __packed _sigfault;
375
376 struct {
377 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */
378 l_int _fd;
379 } __packed _sigpoll;
380 } _sifields;
381 } __packed l_siginfo_t;
382
383 #define lsi_pid _sifields._kill._pid
384 #define lsi_uid _sifields._kill._uid
385 #define lsi_tid _sifields._timer._tid
386 #define lsi_overrun _sifields._timer._overrun
387 #define lsi_sys_private _sifields._timer._sys_private
388 #define lsi_status _sifields._sigchld._status
389 #define lsi_utime _sifields._sigchld._utime
390 #define lsi_stime _sifields._sigchld._stime
391 #define lsi_value _sifields._rt._sigval
392 #define lsi_int _sifields._rt._sigval.sival_int
393 #define lsi_ptr _sifields._rt._sigval.sival_ptr
394 #define lsi_addr _sifields._sigfault._addr
395 #define lsi_band _sifields._sigpoll._band
396 #define lsi_fd _sifields._sigpoll._fd
397
398 struct l_fpreg {
399 u_int16_t significand[4];
400 u_int16_t exponent;
401 } __packed;
402
403 struct l_fpxreg {
404 u_int16_t significand[4];
405 u_int16_t exponent;
406 u_int16_t padding[3];
407 } __packed;
408
409 struct l_xmmreg {
410 u_int32_t element[4];
411 } __packed;
412
413 struct l_fpstate {
414 /* Regular FPU environment */
415 u_int32_t cw;
416 u_int32_t sw;
417 u_int32_t tag;
418 u_int32_t ipoff;
419 u_int32_t cssel;
420 u_int32_t dataoff;
421 u_int32_t datasel;
422 struct l_fpreg _st[8];
423 u_int16_t status;
424 u_int16_t magic; /* 0xffff = regular FPU data */
425
426 /* FXSR FPU environment */
427 u_int32_t _fxsr_env[6]; /* env is ignored. */
428 u_int32_t mxcsr;
429 u_int32_t reserved;
430 struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */
431 struct l_xmmreg _xmm[8];
432 u_int32_t padding[56];
433 } __packed;
434
435 /*
436 * We make the stack look like Linux expects it when calling a signal
437 * handler, but use the BSD way of calling the handler and sigreturn().
438 * This means that we need to pass the pointer to the handler too.
439 * It is appended to the frame to not interfere with the rest of it.
440 */
441 struct l_sigframe {
442 l_int sf_sig;
443 struct l_sigcontext sf_sc;
444 struct l_fpstate sf_fpstate;
445 l_uint sf_extramask[1];
446 l_handler_t sf_handler;
447 } __packed;
448
449 struct l_rt_sigframe {
450 l_int sf_sig;
451 l_uintptr_t sf_siginfo;
452 l_uintptr_t sf_ucontext;
453 l_siginfo_t sf_si;
454 struct l_ucontext sf_sc;
455 l_handler_t sf_handler;
456 } __packed;
457
458 /*
459 * arch specific open/fcntl flags
460 */
461 #define LINUX_F_GETLK64 12
462 #define LINUX_F_SETLK64 13
463 #define LINUX_F_SETLKW64 14
464
465 union l_semun {
466 l_int val;
467 l_uintptr_t buf;
468 l_uintptr_t array;
469 l_uintptr_t __buf;
470 l_uintptr_t __pad;
471 } __packed;
472
473 struct l_sockaddr {
474 l_ushort sa_family;
475 char sa_data[14];
476 } __packed;
477
478 struct l_ifmap {
479 l_ulong mem_start;
480 l_ulong mem_end;
481 l_ushort base_addr;
482 u_char irq;
483 u_char dma;
484 u_char port;
485 } __packed;
486
487 #define LINUX_IFHWADDRLEN 6
488 #define LINUX_IFNAMSIZ 16
489
490 struct l_ifreq {
491 union {
492 char ifrn_name[LINUX_IFNAMSIZ];
493 } ifr_ifrn;
494
495 union {
496 struct l_sockaddr ifru_addr;
497 struct l_sockaddr ifru_dstaddr;
498 struct l_sockaddr ifru_broadaddr;
499 struct l_sockaddr ifru_netmask;
500 struct l_sockaddr ifru_hwaddr;
501 l_short ifru_flags[1];
502 l_int ifru_ivalue;
503 l_int ifru_mtu;
504 struct l_ifmap ifru_map;
505 char ifru_slave[LINUX_IFNAMSIZ];
506 l_uintptr_t ifru_data;
507 } ifr_ifru;
508 } __packed;
509
510 #define ifr_name ifr_ifrn.ifrn_name /* Interface name */
511 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
512 #define ifr_ifindex ifr_ifru.ifru_ivalue /* Interface index */
513
514 struct l_ifconf {
515 int ifc_len;
516 union {
517 l_uintptr_t ifcu_buf;
518 l_uintptr_t ifcu_req;
519 } ifc_ifcu;
520 } __packed;
521
522 #define ifc_buf ifc_ifcu.ifcu_buf
523 #define ifc_req ifc_ifcu.ifcu_req
524
525 /*
526 * poll()
527 */
528 #define LINUX_POLLIN 0x0001
529 #define LINUX_POLLPRI 0x0002
530 #define LINUX_POLLOUT 0x0004
531 #define LINUX_POLLERR 0x0008
532 #define LINUX_POLLHUP 0x0010
533 #define LINUX_POLLNVAL 0x0020
534 #define LINUX_POLLRDNORM 0x0040
535 #define LINUX_POLLRDBAND 0x0080
536 #define LINUX_POLLWRNORM 0x0100
537 #define LINUX_POLLWRBAND 0x0200
538 #define LINUX_POLLMSG 0x0400
539
540 struct l_pollfd {
541 l_int fd;
542 l_short events;
543 l_short revents;
544 } __packed;
545
546 struct l_user_desc {
547 l_uint entry_number;
548 l_uint base_addr;
549 l_uint limit;
550 l_uint seg_32bit:1;
551 l_uint contents:2;
552 l_uint read_exec_only:1;
553 l_uint limit_in_pages:1;
554 l_uint seg_not_present:1;
555 l_uint useable:1;
556 };
557
558 #define LINUX_LOWERWORD 0x0000ffff
559
560 /*
561 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
562 * These convert Linux user space descriptor to machine one.
563 */
564 #define LINUX_LDT_entry_a(info) \
565 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \
566 ((info)->limit & LINUX_LOWERWORD))
567
568 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9
569 #define LINUX_ENTRY_B_CONTENTS 10
570 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15
571 #define LINUX_ENTRY_B_BASE_ADDR 16
572 #define LINUX_ENTRY_B_USEABLE 20
573 #define LINUX_ENTRY_B_SEG32BIT 22
574 #define LINUX_ENTRY_B_LIMIT 23
575
576 #define LINUX_LDT_entry_b(info) \
577 (((info)->base_addr & 0xff000000) | \
578 ((info)->limit & 0xf0000) | \
579 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \
580 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) | \
581 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \
582 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) | \
583 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \
584 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \
585 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
586
587 #define LINUX_LDT_empty(info) \
588 ((info)->base_addr == 0 && \
589 (info)->limit == 0 && \
590 (info)->contents == 0 && \
591 (info)->seg_not_present == 1 && \
592 (info)->read_exec_only == 1 && \
593 (info)->seg_32bit == 0 && \
594 (info)->limit_in_pages == 0 && \
595 (info)->useable == 0)
596
597 /*
598 * Macros for converting segments.
599 * They do the same as those in arch/i386/kernel/process.c in Linux.
600 */
601 #define LINUX_GET_BASE(desc) \
602 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \
603 (((desc)->b << 16) & 0x00ff0000) | \
604 ((desc)->b & 0xff000000))
605
606 #define LINUX_GET_LIMIT(desc) \
607 (((desc)->a & LINUX_LOWERWORD) | \
608 ((desc)->b & 0xf0000))
609
610 #define LINUX_GET_32BIT(desc) \
611 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
612 #define LINUX_GET_CONTENTS(desc) \
613 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
614 #define LINUX_GET_WRITABLE(desc) \
615 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
616 #define LINUX_GET_LIMIT_PAGES(desc) \
617 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
618 #define LINUX_GET_PRESENT(desc) \
619 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
620 #define LINUX_GET_USEABLE(desc) \
621 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
622
623 struct iovec;
624 struct uio;
625
626 struct l_iovec32 {
627 uint32_t iov_base;
628 l_size_t iov_len;
629 };
630
631 int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
632 struct iovec **iovp, int error);
633 int linux32_copyinuio(struct l_iovec32 *iovp, l_ulong iovcnt,
634 struct uio **uiop);
635 int linux_copyout_rusage(struct rusage *ru, void *uaddr);
636
637 /* robust futexes */
638 struct linux_robust_list {
639 l_uintptr_t next;
640 };
641
642 struct linux_robust_list_head {
643 struct linux_robust_list list;
644 l_long futex_offset;
645 l_uintptr_t pending_list;
646 };
647
648 #endif /* !_AMD64_LINUX_H_ */
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