aboutsummaryrefslogtreecommitdiff
path: root/sys/amd64/linux32/linux.h
blob: 1c9cb0c624a64efc0e55c16132b75b55e2b5f3c4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
/*-
 * Copyright (c) 2004 Tim J. Robbins
 * Copyright (c) 2001 Doug Rabson
 * Copyright (c) 1994-1996 Søren Schmidt
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer
 *    in this position and unchanged.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#ifndef _AMD64_LINUX_H_
#define	_AMD64_LINUX_H_

#include <amd64/linux32/linux32_syscall.h>

/*
 * debugging support
 */
extern u_char linux_debug_map[];
#define	ldebug(name)	isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
#define	ARGS(nm, fmt)	"linux(%ld/%ld): "#nm"("fmt")\n",			\
			(long)td->td_proc->p_pid, (long)td->td_tid
#define	LMSG(fmt)	"linux(%ld/%ld): "fmt"\n",				\
			(long)td->td_proc->p_pid, (long)td->td_tid
#define	LINUX_DTRACE	linuxulator32

#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_LINUX);
#endif

#define	LINUX32_MAXUSER		((1ul << 32) - PAGE_SIZE)
#define	LINUX32_SHAREDPAGE	(LINUX32_MAXUSER - PAGE_SIZE)
#define	LINUX32_USRSTACK	LINUX32_SHAREDPAGE

/* XXX 16 = sizeof(linux32_ps_strings) */
#define	LINUX32_PS_STRINGS	(LINUX32_USRSTACK - 16)
#define	LINUX32_MAXDSIZ		(512 * 1024 * 1024)	/* 512MB */
#define	LINUX32_MAXSSIZ		(64 * 1024 * 1024)	/* 64MB */
#define	LINUX32_MAXVMEM		0			/* Unlimited */

#define	PTRIN(v)	(void *)(uintptr_t)(v)
#define	PTROUT(v)	(l_uintptr_t)(uintptr_t)(v)

#define	CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
#define	CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
#define	PTRIN_CP(src,dst,fld) \
	do { (dst).fld = PTRIN((src).fld); } while (0)

/*
 * Provide a separate set of types for the Linux types.
 */
typedef int		l_int;
typedef int32_t		l_long;
typedef int64_t		l_longlong;
typedef short		l_short;
typedef unsigned int	l_uint;
typedef uint32_t	l_ulong;
typedef uint64_t	l_ulonglong;
typedef unsigned short	l_ushort;

typedef l_ulong		l_uintptr_t;
typedef l_long		l_clock_t;
typedef l_int		l_daddr_t;
typedef l_ushort	l_dev_t;
typedef l_uint		l_gid_t;
typedef l_ushort	l_gid16_t;
typedef l_ulong		l_ino_t;
typedef l_int		l_key_t;
typedef l_longlong	l_loff_t;
typedef l_ushort	l_mode_t;
typedef l_long		l_off_t;
typedef l_int		l_pid_t;
typedef l_uint		l_size_t;
typedef l_long		l_suseconds_t;
typedef l_long		l_time_t;
typedef l_uint		l_uid_t;
typedef l_ushort	l_uid16_t;
typedef l_int		l_timer_t;
typedef l_int		l_mqd_t;

typedef struct {
	l_int		val[2];
} __packed l_fsid_t;

typedef struct {
	l_time_t	tv_sec;
	l_suseconds_t	tv_usec;
} l_timeval;

#define	l_fd_set	fd_set

/*
 * Miscellaneous
 */
#define	LINUX_AT_COUNT		16	/* Count of used aux entry types.
					 * Keep this synchronized with
					 * elf_linux_fixup() code.
					 */
struct l___sysctl_args
{
	l_uintptr_t	name;
	l_int		nlen;
	l_uintptr_t	oldval;
	l_uintptr_t	oldlenp;
	l_uintptr_t	newval;
	l_size_t	newlen;
	l_ulong		__spare[4];
} __packed;

/* Resource limits */
#define	LINUX_RLIMIT_CPU	0
#define	LINUX_RLIMIT_FSIZE	1
#define	LINUX_RLIMIT_DATA	2
#define	LINUX_RLIMIT_STACK	3
#define	LINUX_RLIMIT_CORE	4
#define	LINUX_RLIMIT_RSS	5
#define	LINUX_RLIMIT_NPROC	6
#define	LINUX_RLIMIT_NOFILE	7
#define	LINUX_RLIMIT_MEMLOCK	8
#define	LINUX_RLIMIT_AS		9	/* Address space limit */

#define	LINUX_RLIM_NLIMITS	10

struct l_rlimit {
	l_ulong rlim_cur;
	l_ulong rlim_max;
} __packed;

struct l_rusage {
	l_timeval ru_utime;
	l_timeval ru_stime;
	l_long	ru_maxrss;
	l_long	ru_ixrss;
	l_long	ru_idrss;
	l_long	ru_isrss;
	l_long	ru_minflt;
	l_long	ru_majflt;
	l_long	ru_nswap;
	l_long	ru_inblock;
	l_long	ru_oublock;
	l_long	ru_msgsnd;
	l_long	ru_msgrcv;
	l_long	ru_nsignals;
	l_long	ru_nvcsw;
	l_long	ru_nivcsw;
} __packed;

/* mmap options */
#define	LINUX_MAP_SHARED	0x0001
#define	LINUX_MAP_PRIVATE	0x0002
#define	LINUX_MAP_FIXED		0x0010
#define	LINUX_MAP_ANON		0x0020
#define	LINUX_MAP_GROWSDOWN	0x0100

struct l_mmap_argv {
	l_uintptr_t	addr;
	l_size_t	len;
	l_int		prot;
	l_int		flags;
	l_int		fd;
	l_ulong		pgoff;
};

/*
 * stat family of syscalls
 */
struct l_timespec {
	l_time_t	tv_sec;
	l_long		tv_nsec;
} __packed;

struct l_newstat {
	l_ushort	st_dev;
	l_ushort	__pad1;
	l_ulong		st_ino;
	l_ushort	st_mode;
	l_ushort	st_nlink;
	l_ushort	st_uid;
	l_ushort	st_gid;
	l_ushort	st_rdev;
	l_ushort	__pad2;
	l_ulong		st_size;
	l_ulong		st_blksize;
	l_ulong		st_blocks;
	struct l_timespec	st_atim;
	struct l_timespec	st_mtim;
	struct l_timespec	st_ctim;
	l_ulong		__unused4;
	l_ulong		__unused5;
} __packed;

struct l_stat {
	l_ushort	st_dev;
	l_ulong		st_ino;
	l_ushort	st_mode;
	l_ushort	st_nlink;
	l_ushort	st_uid;
	l_ushort	st_gid;
	l_ushort	st_rdev;
	l_long		st_size;
	struct l_timespec	st_atim;
	struct l_timespec	st_mtim;
	struct l_timespec	st_ctim;
	l_long		st_blksize;
	l_long		st_blocks;
	l_ulong		st_flags;
	l_ulong		st_gen;
};

struct l_stat64 {
	l_ushort	st_dev;
	u_char		__pad0[10];
	l_ulong		__st_ino;
	l_uint		st_mode;
	l_uint		st_nlink;
	l_ulong		st_uid;
	l_ulong		st_gid;
	l_ushort	st_rdev;
	u_char		__pad3[10];
	l_longlong	st_size;
	l_ulong		st_blksize;
	l_ulong		st_blocks;
	l_ulong		__pad4;
	struct l_timespec	st_atim;
	struct l_timespec	st_mtim;
	struct l_timespec	st_ctim;
	l_ulonglong	st_ino;
} __packed;

struct l_statfs64 { 
        l_int           f_type; 
        l_int           f_bsize; 
        uint64_t        f_blocks; 
        uint64_t        f_bfree; 
        uint64_t        f_bavail; 
        uint64_t        f_files; 
        uint64_t        f_ffree; 
        l_fsid_t        f_fsid;
        l_int           f_namelen;
        l_int           f_spare[6];
} __packed;

/*
 * Signalling
 */
#define	LINUX_SIGHUP		1
#define	LINUX_SIGINT		2
#define	LINUX_SIGQUIT		3
#define	LINUX_SIGILL		4
#define	LINUX_SIGTRAP		5
#define	LINUX_SIGABRT		6
#define	LINUX_SIGIOT		LINUX_SIGABRT
#define	LINUX_SIGBUS		7
#define	LINUX_SIGFPE		8
#define	LINUX_SIGKILL		9
#define	LINUX_SIGUSR1		10
#define	LINUX_SIGSEGV		11
#define	LINUX_SIGUSR2		12
#define	LINUX_SIGPIPE		13
#define	LINUX_SIGALRM		14
#define	LINUX_SIGTERM		15
#define	LINUX_SIGSTKFLT		16
#define	LINUX_SIGCHLD		17
#define	LINUX_SIGCONT		18
#define	LINUX_SIGSTOP		19
#define	LINUX_SIGTSTP		20
#define	LINUX_SIGTTIN		21
#define	LINUX_SIGTTOU		22
#define	LINUX_SIGURG		23
#define	LINUX_SIGXCPU		24
#define	LINUX_SIGXFSZ		25
#define	LINUX_SIGVTALRM		26
#define	LINUX_SIGPROF		27
#define	LINUX_SIGWINCH		28
#define	LINUX_SIGIO		29
#define	LINUX_SIGPOLL		LINUX_SIGIO
#define	LINUX_SIGPWR		30
#define	LINUX_SIGSYS		31
#define	LINUX_SIGRTMIN		32

#define	LINUX_SIGTBLSZ		31
#define	LINUX_NSIG_WORDS	2
#define	LINUX_NBPW		32
#define	LINUX_NSIG		(LINUX_NBPW * LINUX_NSIG_WORDS)

/* sigaction flags */
#define	LINUX_SA_NOCLDSTOP	0x00000001
#define	LINUX_SA_NOCLDWAIT	0x00000002
#define	LINUX_SA_SIGINFO	0x00000004
#define	LINUX_SA_RESTORER	0x04000000
#define	LINUX_SA_ONSTACK	0x08000000
#define	LINUX_SA_RESTART	0x10000000
#define	LINUX_SA_INTERRUPT	0x20000000
#define	LINUX_SA_NOMASK		0x40000000
#define	LINUX_SA_ONESHOT	0x80000000

/* sigprocmask actions */
#define	LINUX_SIG_BLOCK		0
#define	LINUX_SIG_UNBLOCK	1
#define	LINUX_SIG_SETMASK	2

/* sigset_t macros */
#define	LINUX_SIGEMPTYSET(set)		(set).__bits[0] = (set).__bits[1] = 0
#define	LINUX_SIGISMEMBER(set, sig)	SIGISMEMBER(set, sig)
#define	LINUX_SIGADDSET(set, sig)	SIGADDSET(set, sig)

/* sigaltstack */
#define	LINUX_MINSIGSTKSZ	2048
#define	LINUX_SS_ONSTACK	1
#define	LINUX_SS_DISABLE	2

int linux_to_bsd_sigaltstack(int lsa);
int bsd_to_linux_sigaltstack(int bsa);

typedef l_uintptr_t l_handler_t;
typedef l_ulong	l_osigset_t;

typedef struct {
	l_uint	__bits[LINUX_NSIG_WORDS];
} __packed l_sigset_t;

typedef struct {
	l_handler_t	lsa_handler;
	l_osigset_t	lsa_mask;
	l_ulong		lsa_flags;
	l_uintptr_t	lsa_restorer;
} __packed l_osigaction_t;

typedef struct {
	l_handler_t	lsa_handler;
	l_ulong		lsa_flags;
	l_uintptr_t	lsa_restorer;
	l_sigset_t	lsa_mask;
} __packed l_sigaction_t;

typedef struct {
	l_uintptr_t	ss_sp;
	l_int		ss_flags;
	l_size_t	ss_size;
} __packed l_stack_t;

/* The Linux sigcontext, pretty much a standard 386 trapframe. */
struct l_sigcontext {
	l_uint		sc_gs;
	l_uint		sc_fs;
	l_uint		sc_es;
	l_uint		sc_ds;
	l_uint		sc_edi;
	l_uint		sc_esi;
	l_uint		sc_ebp;
	l_uint		sc_esp;
	l_uint		sc_ebx;
	l_uint		sc_edx;
	l_uint		sc_ecx;
	l_uint		sc_eax;
	l_uint		sc_trapno;
	l_uint		sc_err;
	l_uint		sc_eip;
	l_uint		sc_cs;
	l_uint		sc_eflags;
	l_uint		sc_esp_at_signal;
	l_uint		sc_ss;
	l_uint		sc_387;
	l_uint		sc_mask;
	l_uint		sc_cr2;
} __packed;

struct l_ucontext {
	l_ulong		uc_flags;
	l_uintptr_t	uc_link;
	l_stack_t	uc_stack;
	struct l_sigcontext	uc_mcontext;
	l_sigset_t	uc_sigmask;
} __packed;

#define	LINUX_SI_MAX_SIZE	128
#define	LINUX_SI_PAD_SIZE	((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)

typedef union l_sigval {
	l_int		sival_int;
	l_uintptr_t	sival_ptr;
} l_sigval_t;

typedef struct l_siginfo {
	l_int		lsi_signo;
	l_int		lsi_errno;
	l_int		lsi_code;
	union {
		l_int	_pad[LINUX_SI_PAD_SIZE];

		struct {
			l_pid_t		_pid;
			l_uid_t		_uid;
		} __packed _kill;

		struct {
			l_timer_t	_tid;
			l_int		_overrun;
			char		_pad[sizeof(l_uid_t) - sizeof(l_int)];
			l_sigval_t	_sigval;
			l_int		_sys_private;
		} __packed _timer;

		struct {
			l_pid_t		_pid;		/* sender's pid */
			l_uid_t		_uid;		/* sender's uid */
			l_sigval_t	_sigval;
		} __packed _rt;

		struct {
			l_pid_t		_pid;		/* which child */
			l_uid_t		_uid;		/* sender's uid */
			l_int		_status;	/* exit code */
			l_clock_t	_utime;
			l_clock_t	_stime;
		} __packed _sigchld;

		struct {
			l_uintptr_t	_addr;	/* Faulting insn/memory ref. */
		} __packed _sigfault;

		struct {
			l_long		_band;	/* POLL_IN,POLL_OUT,POLL_MSG */
			l_int		_fd;
		} __packed _sigpoll;
	} _sifields;
} __packed l_siginfo_t;

#define	lsi_pid		_sifields._kill._pid
#define	lsi_uid		_sifields._kill._uid
#define	lsi_tid		_sifields._timer._tid
#define	lsi_overrun	_sifields._timer._overrun
#define	lsi_sys_private	_sifields._timer._sys_private
#define	lsi_status	_sifields._sigchld._status
#define	lsi_utime	_sifields._sigchld._utime
#define	lsi_stime	_sifields._sigchld._stime
#define	lsi_value	_sifields._rt._sigval
#define	lsi_int		_sifields._rt._sigval.sival_int
#define	lsi_ptr		_sifields._rt._sigval.sival_ptr
#define	lsi_addr	_sifields._sigfault._addr
#define	lsi_band	_sifields._sigpoll._band
#define	lsi_fd		_sifields._sigpoll._fd

struct l_fpreg {
	u_int16_t	significand[4];
	u_int16_t	exponent;
} __packed;

struct l_fpxreg {
	u_int16_t	significand[4];
	u_int16_t	exponent;
	u_int16_t	padding[3];
} __packed;

struct l_xmmreg {
	u_int32_t	element[4];
} __packed;

struct l_fpstate {
	/* Regular FPU environment */
	u_int32_t		cw;
	u_int32_t		sw;
	u_int32_t		tag;
	u_int32_t		ipoff;
	u_int32_t		cssel;
	u_int32_t		dataoff;
	u_int32_t		datasel;
	struct l_fpreg		_st[8];
	u_int16_t		status;
	u_int16_t		magic;		/* 0xffff = regular FPU data */

	/* FXSR FPU environment */
	u_int32_t		_fxsr_env[6];	/* env is ignored. */
	u_int32_t		mxcsr;
	u_int32_t		reserved;
	struct l_fpxreg		_fxsr_st[8];	/* reg data is ignored. */
	struct l_xmmreg		_xmm[8];
	u_int32_t		padding[56];
} __packed;

/*
 * We make the stack look like Linux expects it when calling a signal
 * handler, but use the BSD way of calling the handler and sigreturn().
 * This means that we need to pass the pointer to the handler too.
 * It is appended to the frame to not interfere with the rest of it.
 */
struct l_sigframe {
	l_int			sf_sig;
	struct l_sigcontext	sf_sc;
	struct l_fpstate	sf_fpstate;
	l_uint			sf_extramask[LINUX_NSIG_WORDS-1];
	l_handler_t		sf_handler;
} __packed;

struct l_rt_sigframe {
	l_int			sf_sig;
	l_uintptr_t 		sf_siginfo;
	l_uintptr_t		sf_ucontext;
	l_siginfo_t		sf_si;
	struct l_ucontext 	sf_sc;
	l_handler_t 		sf_handler;
} __packed;

extern struct sysentvec elf_linux_sysvec;

/*
 * open/fcntl flags
 */
#define	LINUX_O_RDONLY		00000000
#define	LINUX_O_WRONLY		00000001
#define	LINUX_O_RDWR		00000002
#define	LINUX_O_ACCMODE		00000003
#define	LINUX_O_CREAT		00000100
#define	LINUX_O_EXCL		00000200
#define	LINUX_O_NOCTTY		00000400
#define	LINUX_O_TRUNC		00001000
#define	LINUX_O_APPEND		00002000
#define	LINUX_O_NONBLOCK	00004000
#define	LINUX_O_NDELAY		LINUX_O_NONBLOCK
#define	LINUX_O_SYNC		00010000
#define	LINUX_FASYNC		00020000
#define	LINUX_O_DIRECT		00040000	/* Direct disk access hint */
#define	LINUX_O_LARGEFILE	00100000
#define	LINUX_O_DIRECTORY	00200000	/* Must be a directory */
#define	LINUX_O_NOFOLLOW	00400000	/* Do not follow links */
#define	LINUX_O_NOATIME		01000000
#define	LINUX_O_CLOEXEC		02000000

#define	LINUX_F_DUPFD		0
#define	LINUX_F_GETFD		1
#define	LINUX_F_SETFD		2
#define	LINUX_F_GETFL		3
#define	LINUX_F_SETFL		4
#define	LINUX_F_GETLK		5
#define	LINUX_F_SETLK		6
#define	LINUX_F_SETLKW		7
#define	LINUX_F_SETOWN		8
#define	LINUX_F_GETOWN		9

#define	LINUX_F_GETLK64		12
#define	LINUX_F_SETLK64		13
#define	LINUX_F_SETLKW64	14

#define	LINUX_F_RDLCK		0
#define	LINUX_F_WRLCK		1
#define	LINUX_F_UNLCK		2

union l_semun {
	l_int		val;
	l_uintptr_t	buf;
	l_uintptr_t	array;
	l_uintptr_t	__buf;
	l_uintptr_t	__pad;
} __packed;

/*
 * Socket defines
 */
#define	LINUX_SOL_SOCKET	1
#define	LINUX_SOL_IP		0
#define	LINUX_SOL_IPX		256
#define	LINUX_SOL_AX25		257
#define	LINUX_SOL_TCP		6
#define	LINUX_SOL_UDP		17

#define	LINUX_SO_DEBUG		1
#define	LINUX_SO_REUSEADDR	2
#define	LINUX_SO_TYPE		3
#define	LINUX_SO_ERROR		4
#define	LINUX_SO_DONTROUTE	5
#define	LINUX_SO_BROADCAST	6
#define	LINUX_SO_SNDBUF		7
#define	LINUX_SO_RCVBUF		8
#define	LINUX_SO_KEEPALIVE	9
#define	LINUX_SO_OOBINLINE	10
#define	LINUX_SO_NO_CHECK	11
#define	LINUX_SO_PRIORITY	12
#define	LINUX_SO_LINGER		13
#define	LINUX_SO_PEERCRED	17
#define	LINUX_SO_RCVLOWAT	18
#define	LINUX_SO_SNDLOWAT	19
#define	LINUX_SO_RCVTIMEO	20
#define	LINUX_SO_SNDTIMEO	21
#define	LINUX_SO_TIMESTAMP	29
#define	LINUX_SO_ACCEPTCONN	30

struct l_sockaddr {
	l_ushort	sa_family;
	char		sa_data[14];
} __packed;

struct l_msghdr {
	l_uintptr_t	msg_name;
	l_int		msg_namelen;
	l_uintptr_t	msg_iov;
	l_size_t	msg_iovlen;
	l_uintptr_t	msg_control;
	l_size_t	msg_controllen;
	l_uint		msg_flags;
};

struct l_cmsghdr {
	l_size_t	cmsg_len;
	l_int		cmsg_level;
	l_int		cmsg_type;
};

struct l_ifmap {
	l_ulong		mem_start;
	l_ulong		mem_end;
	l_ushort	base_addr;
	u_char		irq;
	u_char		dma;
	u_char		port;
} __packed;

#define	LINUX_IFHWADDRLEN	6
#define	LINUX_IFNAMSIZ		16

struct l_ifreq {
	union {
		char	ifrn_name[LINUX_IFNAMSIZ];
	} ifr_ifrn;

	union {
		struct l_sockaddr	ifru_addr;
		struct l_sockaddr	ifru_dstaddr;
		struct l_sockaddr	ifru_broadaddr;
		struct l_sockaddr	ifru_netmask;
		struct l_sockaddr	ifru_hwaddr;
		l_short		ifru_flags[1];
		l_int		ifru_metric;
		l_int		ifru_mtu;
		struct l_ifmap	ifru_map;
		char		ifru_slave[LINUX_IFNAMSIZ];
		l_uintptr_t	ifru_data;
	} ifr_ifru;
} __packed;

#define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
#define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */

struct l_ifconf {
	int	ifc_len;
	union {
		l_uintptr_t	ifcu_buf;
		l_uintptr_t	ifcu_req;
	} ifc_ifcu;
} __packed;

#define	ifc_buf		ifc_ifcu.ifcu_buf
#define	ifc_req		ifc_ifcu.ifcu_req

/*
 * poll()
 */
#define	LINUX_POLLIN		0x0001
#define	LINUX_POLLPRI		0x0002
#define	LINUX_POLLOUT		0x0004
#define	LINUX_POLLERR		0x0008
#define	LINUX_POLLHUP		0x0010
#define	LINUX_POLLNVAL		0x0020
#define	LINUX_POLLRDNORM	0x0040
#define	LINUX_POLLRDBAND	0x0080
#define	LINUX_POLLWRNORM	0x0100
#define	LINUX_POLLWRBAND	0x0200
#define	LINUX_POLLMSG		0x0400

struct l_pollfd {
	l_int		fd;
	l_short		events;
	l_short		revents;
} __packed;

struct l_user_desc {
	l_uint		entry_number;
	l_uint		base_addr;
	l_uint		limit;
	l_uint		seg_32bit:1;
	l_uint		contents:2;
	l_uint		read_exec_only:1;
	l_uint		limit_in_pages:1;
	l_uint		seg_not_present:1;
	l_uint		useable:1;
};

#define	LINUX_LOWERWORD	0x0000ffff

/*
 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
 * These convert Linux user space descriptor to machine one.
 */
#define	LINUX_LDT_entry_a(info)					\
	((((info)->base_addr & LINUX_LOWERWORD) << 16) |	\
	((info)->limit & LINUX_LOWERWORD))

#define	LINUX_ENTRY_B_READ_EXEC_ONLY	9
#define	LINUX_ENTRY_B_CONTENTS		10
#define	LINUX_ENTRY_B_SEG_NOT_PRESENT	15
#define	LINUX_ENTRY_B_BASE_ADDR		16
#define	LINUX_ENTRY_B_USEABLE		20
#define	LINUX_ENTRY_B_SEG32BIT		22
#define	LINUX_ENTRY_B_LIMIT		23

#define	LINUX_LDT_entry_b(info)							\
	(((info)->base_addr & 0xff000000) |					\
	((info)->limit & 0xf0000) |						\
	((info)->contents << LINUX_ENTRY_B_CONTENTS) |				\
	(((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) |	\
	(((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) |		\
	(((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) |	\
	((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) |				\
	((info)->useable << LINUX_ENTRY_B_USEABLE) |				\
	((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)

#define	LINUX_LDT_empty(info)		\
	((info)->base_addr == 0 &&	\
	(info)->limit == 0 &&		\
	(info)->contents == 0 &&	\
	(info)->seg_not_present == 1 &&	\
	(info)->read_exec_only == 1 &&	\
	(info)->seg_32bit == 0 &&	\
	(info)->limit_in_pages == 0 &&	\
	(info)->useable == 0)

/*
 * Macros for converting segments.
 * They do the same as those in arch/i386/kernel/process.c in Linux.
 */
#define	LINUX_GET_BASE(desc)				\
	((((desc)->a >> 16) & LINUX_LOWERWORD) |	\
	(((desc)->b << 16) & 0x00ff0000) |		\
	((desc)->b & 0xff000000))

#define	LINUX_GET_LIMIT(desc)			\
	(((desc)->a & LINUX_LOWERWORD) |	\
	((desc)->b & 0xf0000))

#define	LINUX_GET_32BIT(desc)		\
	(((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
#define	LINUX_GET_CONTENTS(desc)	\
	(((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
#define	LINUX_GET_WRITABLE(desc)	\
	(((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
#define	LINUX_GET_LIMIT_PAGES(desc)	\
	(((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
#define	LINUX_GET_PRESENT(desc)		\
	(((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
#define	LINUX_GET_USEABLE(desc)		\
	(((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)

struct iovec;

struct l_iovec32 {
	uint32_t	iov_base;
	l_size_t	iov_len;
};

int linux32_copyiniov(struct l_iovec32 *iovp32, l_ulong iovcnt,
			    struct iovec **iovp, int error);
int linux_copyout_rusage(struct rusage *ru, void *uaddr);

/* robust futexes */
struct linux_robust_list {
	l_uintptr_t			next;
};

struct linux_robust_list_head {
	struct linux_robust_list	list;
	l_long				futex_offset;
	l_uintptr_t			pending_list;
};

#endif /* !_AMD64_LINUX_H_ */