Bootlin logo

Elixir Cross Referencer

  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
/* $Id: misc.c,v 1.36 2002/02/09 19:49:31 davem Exp $
 * misc.c: Miscellaneous syscall emulation for Solaris
 *
 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 */

#include <linux/module.h> 
#include <linux/types.h>
#include <linux/utsname.h>
#include <linux/limits.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/tty.h>
#include <linux/mman.h>
#include <linux/file.h>
#include <linux/timex.h>
#include <linux/major.h>
#include <linux/compat.h>

#include <asm/uaccess.h>
#include <asm/string.h>
#include <asm/oplib.h>
#include <asm/idprom.h>
#include <asm/smp.h>
#include <asm/prom.h>

#include "conv.h"

/* Conversion from Linux to Solaris errnos. 0-34 are identity mapped.
   Some Linux errnos (EPROCLIM, EDOTDOT, ERREMOTE, EUCLEAN, ENOTNAM, 
   ENAVAIL, EISNAM, EREMOTEIO, ENOMEDIUM, EMEDIUMTYPE) have no Solaris
   equivalents. I return EINVAL in that case, which is very wrong. If
   someone suggest a better value for them, you're welcomed.
   On the other side, Solaris ECANCELED and ENOTSUP have no Linux equivalents,
   but that doesn't matter here. --jj */
int solaris_err_table[] = {
/* 0 */  0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
/* 10 */  10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
/* 20 */  20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
/* 30 */  30, 31, 32, 33, 34, 22, 150, 149, 95, 96,
/* 40 */  97, 98, 99, 120, 121, 122, 123, 124, 125, 126, 
/* 50 */ 127, 128, 129, 130, 131, 132, 133, 134, 143, 144,
/* 60 */ 145, 146, 90, 78, 147, 148, 93, 22, 94, 49,
/* 70 */ 151, 66, 60, 62, 63, 35, 77, 36, 45, 46, 
/* 80 */ 64, 22, 67, 68, 69, 70, 71, 74, 22, 82, 
/* 90 */ 89, 92, 79, 81, 37, 38, 39, 40, 41, 42,
/* 100 */ 43, 44, 50, 51, 52, 53, 54, 55, 56, 57,
/* 110 */ 87, 61, 84, 65, 83, 80, 91, 22, 22, 22,
/* 120 */ 22, 22, 88, 86, 85, 22, 22,
};

#define SOLARIS_NR_OPEN	256

static u32 do_solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u64 off)
{
	struct file *file = NULL;
	unsigned long retval, ret_type;

	/* Do we need it here? */
	set_personality(PER_SVR4);
	if (flags & MAP_NORESERVE) {
		static int cnt;
		
		if (cnt < 5) {
			printk("%s:  unimplemented Solaris MAP_NORESERVE mmap() flag\n",
			       current->comm);
			cnt++;
		}
		flags &= ~MAP_NORESERVE;
	}
	retval = -EBADF;
	if(!(flags & MAP_ANONYMOUS)) {
		if(fd >= SOLARIS_NR_OPEN)
			goto out;
 		file = fget(fd);
		if (!file)
			goto out;
		else {
			struct inode * inode = file->f_path.dentry->d_inode;
			if(imajor(inode) == MEM_MAJOR &&
			   iminor(inode) == 5) {
				flags |= MAP_ANONYMOUS;
				fput(file);
				file = NULL;
			}
		}
	}

	retval = -EINVAL;
	len = PAGE_ALIGN(len);
	if(!(flags & MAP_FIXED))
		addr = 0;
	else if (len > STACK_TOP32 || addr > STACK_TOP32 - len)
		goto out_putf;
	ret_type = flags & _MAP_NEW;
	flags &= ~_MAP_NEW;

	down_write(&current->mm->mmap_sem);
	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
	retval = do_mmap(file,
			 (unsigned long) addr, (unsigned long) len,
			 (unsigned long) prot, (unsigned long) flags, off);
	up_write(&current->mm->mmap_sem);
	if(!ret_type)
		retval = ((retval < STACK_TOP32) ? 0 : retval);
	                        
out_putf:
	if (file)
		fput(file);
out:
	return (u32) retval;
}

asmlinkage u32 solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 off)
{
	return do_solaris_mmap(addr, len, prot, flags, fd, (u64) off);
}

asmlinkage u32 solaris_mmap64(struct pt_regs *regs, u32 len, u32 prot, u32 flags, u32 fd, u32 offhi)
{
	u32 offlo;
	
	if (regs->u_regs[UREG_G1]) {
		if (get_user (offlo, (u32 __user *)(long)((u32)regs->u_regs[UREG_I6] + 0x5c)))
			return -EFAULT;
	} else {
		if (get_user (offlo, (u32 __user *)(long)((u32)regs->u_regs[UREG_I6] + 0x60)))
			return -EFAULT;
	}
	return do_solaris_mmap((u32)regs->u_regs[UREG_I0], len, prot, flags, fd, (((u64)offhi)<<32)|offlo);
}

asmlinkage int solaris_brk(u32 brk)
{
	int (*sunos_brk)(u32) = (int (*)(u32))SUNOS(17);
	
	return sunos_brk(brk);
}

static int __set_utsfield(char __user *to, int to_size,
			  const char *from, int from_size,
			  int dotchop, int countfrom)
{
	int len = countfrom ? (to_size > from_size ?
			       from_size : to_size) : to_size;
	int off;

	if (copy_to_user(to, from, len))
		return -EFAULT;

	off = len < to_size? len: len - 1;
	if (dotchop) {
		const char *p = strnchr(from, len, '.');
		if (p) off = p - from;
	}

	if (__put_user('\0', to + off))
		return -EFAULT;

	return 0;
}

#define set_utsfield(to, from, dotchop, countfrom) \
	__set_utsfield((to), sizeof(to), \
		       (from), sizeof(from), \
		       (dotchop), (countfrom))

struct sol_uname {
	char sysname[9];
	char nodename[9];
	char release[9];
	char version[9];
	char machine[9];
};

struct sol_utsname {
	char sysname[257];
	char nodename[257];
	char release[257];
	char version[257];
	char machine[257];
};

static char *machine(void)
{
	switch (sparc_cpu_model) {
	case sun4: return "sun4";
	case sun4c: return "sun4c";
	case sun4e: return "sun4e";
	case sun4m: return "sun4m";
	case sun4d: return "sun4d";
	case sun4u: return "sun4u";
	default: return "sparc";
	}
}

static char *platform(char *buffer, int sz)
{
	struct device_node *dp = of_find_node_by_path("/");
	int len;

	*buffer = 0;
	len = strlen(dp->name);
	if (len > sz)
		len = sz;
	memcpy(buffer, dp->name, len);
	buffer[len] = 0;
	if (*buffer) {
		char *p;

		for (p = buffer; *p; p++)
			if (*p == '/' || *p == ' ') *p = '_';
		return buffer;
	}

	return "sun4u";
}

static char *serial(char *buffer, int sz)
{
	struct device_node *dp = of_find_node_by_path("/options");
	int len;

	*buffer = 0;
	if (dp) {
		const char *val =
			of_get_property(dp, "system-board-serial#", &len);

		if (val && len > 0) {
			if (len > sz)
				len = sz;
			memcpy(buffer, val, len);
			buffer[len] = 0;
		}
	}
	if (!*buffer)
		return "4512348717234";
	else
		return buffer;
}

asmlinkage int solaris_utssys(u32 buf, u32 flags, int which, u32 buf2)
{
	struct sol_uname __user *v = A(buf);
	int err;

	switch (which) {
	case 0:	/* old uname */
		/* Let's cheat */
		err  = set_utsfield(v->sysname, "SunOS", 1, 0);
		down_read(&uts_sem);
		err |= set_utsfield(v->nodename, utsname()->nodename,
				    1, 1);
		up_read(&uts_sem);
		err |= set_utsfield(v->release, "2.6", 0, 0);
		err |= set_utsfield(v->version, "Generic", 0, 0);
		err |= set_utsfield(v->machine, machine(), 0, 0);
		return (err ? -EFAULT : 0);
	case 2: /* ustat */
		return -ENOSYS;
	case 3: /* fusers */
		return -ENOSYS;
	default:
		return -ENOSYS;
	}
}

asmlinkage int solaris_utsname(u32 buf)
{
	struct sol_utsname __user *v = A(buf);
	int err;

	/* Why should we not lie a bit? */
	down_read(&uts_sem);
	err  = set_utsfield(v->sysname, "SunOS", 0, 0);
	err |= set_utsfield(v->nodename, utsname()->nodename, 1, 1);
	err |= set_utsfield(v->release, "5.6", 0, 0);
	err |= set_utsfield(v->version, "Generic", 0, 0);
	err |= set_utsfield(v->machine, machine(), 0, 0);
	up_read(&uts_sem);

	return (err ? -EFAULT : 0);
}

#define SI_SYSNAME		1       /* return name of operating system */
#define SI_HOSTNAME		2       /* return name of node */
#define SI_RELEASE		3       /* return release of operating system */
#define SI_VERSION		4       /* return version field of utsname */
#define SI_MACHINE		5       /* return kind of machine */
#define SI_ARCHITECTURE		6       /* return instruction set arch */
#define SI_HW_SERIAL		7       /* return hardware serial number */
#define SI_HW_PROVIDER		8       /* return hardware manufacturer */
#define SI_SRPC_DOMAIN		9       /* return secure RPC domain */
#define SI_PLATFORM		513     /* return platform identifier */

asmlinkage int solaris_sysinfo(int cmd, u32 buf, s32 count)
{
	char *p, *q, *r;
	char buffer[256];
	int len;
	
	/* Again, we cheat :)) */
	switch (cmd) {
	case SI_SYSNAME: r = "SunOS"; break;
	case SI_HOSTNAME:
		r = buffer + 256;
		down_read(&uts_sem);
		for (p = utsname()->nodename, q = buffer;
		     q < r && *p && *p != '.'; *q++ = *p++);
		up_read(&uts_sem);
		*q = 0;
		r = buffer;
		break;
	case SI_RELEASE: r = "5.6"; break;
	case SI_MACHINE: r = machine(); break;
	case SI_ARCHITECTURE: r = "sparc"; break;
	case SI_HW_PROVIDER: r = "Sun_Microsystems"; break;
	case SI_HW_SERIAL: r = serial(buffer, sizeof(buffer)); break;
	case SI_PLATFORM: r = platform(buffer, sizeof(buffer)); break;
	case SI_SRPC_DOMAIN: r = ""; break;
	case SI_VERSION: r = "Generic"; break;
	default: return -EINVAL;
	}
	len = strlen(r) + 1;
	if (count < len) {
		if (copy_to_user(A(buf), r, count - 1) ||
		    __put_user(0, (char __user *)A(buf) + count - 1))
			return -EFAULT;
	} else {
		if (copy_to_user(A(buf), r, len))
			return -EFAULT;
	}
	return len;
}

#define	SOLARIS_CONFIG_NGROUPS			2
#define	SOLARIS_CONFIG_CHILD_MAX		3
#define	SOLARIS_CONFIG_OPEN_FILES		4
#define	SOLARIS_CONFIG_POSIX_VER		5
#define	SOLARIS_CONFIG_PAGESIZE			6
#define	SOLARIS_CONFIG_CLK_TCK			7
#define	SOLARIS_CONFIG_XOPEN_VER		8
#define	SOLARIS_CONFIG_PROF_TCK			10
#define	SOLARIS_CONFIG_NPROC_CONF		11
#define	SOLARIS_CONFIG_NPROC_ONLN		12
#define	SOLARIS_CONFIG_AIO_LISTIO_MAX		13
#define	SOLARIS_CONFIG_AIO_MAX			14
#define	SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX	15
#define	SOLARIS_CONFIG_DELAYTIMER_MAX		16
#define	SOLARIS_CONFIG_MQ_OPEN_MAX		17
#define	SOLARIS_CONFIG_MQ_PRIO_MAX		18
#define	SOLARIS_CONFIG_RTSIG_MAX		19
#define	SOLARIS_CONFIG_SEM_NSEMS_MAX		20
#define	SOLARIS_CONFIG_SEM_VALUE_MAX		21
#define	SOLARIS_CONFIG_SIGQUEUE_MAX		22
#define	SOLARIS_CONFIG_SIGRT_MIN		23
#define	SOLARIS_CONFIG_SIGRT_MAX		24
#define	SOLARIS_CONFIG_TIMER_MAX		25
#define	SOLARIS_CONFIG_PHYS_PAGES		26
#define	SOLARIS_CONFIG_AVPHYS_PAGES		27

asmlinkage int solaris_sysconf(int id)
{
	switch (id) {
	case SOLARIS_CONFIG_NGROUPS:	return NGROUPS_MAX;
	case SOLARIS_CONFIG_CHILD_MAX:
		return current->signal->rlim[RLIMIT_NPROC].rlim_cur;
	case SOLARIS_CONFIG_OPEN_FILES:
		return current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
	case SOLARIS_CONFIG_POSIX_VER:	return 199309;
	case SOLARIS_CONFIG_PAGESIZE:	return PAGE_SIZE;
	case SOLARIS_CONFIG_XOPEN_VER:	return 3;
	case SOLARIS_CONFIG_CLK_TCK:
	case SOLARIS_CONFIG_PROF_TCK:
		return sparc64_get_clock_tick(smp_processor_id());
#ifdef CONFIG_SMP	
	case SOLARIS_CONFIG_NPROC_CONF:	return NR_CPUS;
	case SOLARIS_CONFIG_NPROC_ONLN:	return num_online_cpus();
#else
	case SOLARIS_CONFIG_NPROC_CONF:	return 1;
	case SOLARIS_CONFIG_NPROC_ONLN:	return 1;
#endif
	case SOLARIS_CONFIG_SIGRT_MIN:		return 37;
	case SOLARIS_CONFIG_SIGRT_MAX:		return 44;
	case SOLARIS_CONFIG_PHYS_PAGES:
	case SOLARIS_CONFIG_AVPHYS_PAGES:
		{
			struct sysinfo s;
			
			si_meminfo(&s);
			if (id == SOLARIS_CONFIG_PHYS_PAGES)
				return s.totalram >>= PAGE_SHIFT;
			else
				return s.freeram >>= PAGE_SHIFT;
		}
	/* XXX support these as well -jj */
	case SOLARIS_CONFIG_AIO_LISTIO_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_AIO_MAX:		return -EINVAL;
	case SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_DELAYTIMER_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_MQ_OPEN_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_MQ_PRIO_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_RTSIG_MAX:		return -EINVAL;
	case SOLARIS_CONFIG_SEM_NSEMS_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_SEM_VALUE_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_SIGQUEUE_MAX:	return -EINVAL;
	case SOLARIS_CONFIG_TIMER_MAX:		return -EINVAL;
	default: return -EINVAL;
	}
}

asmlinkage int solaris_procids(int cmd, s32 pid, s32 pgid)
{
	int ret;
	
	switch (cmd) {
	case 0: /* getpgrp */
		return process_group(current);
	case 1: /* setpgrp */
		{
			int (*sys_setpgid)(pid_t,pid_t) =
				(int (*)(pid_t,pid_t))SYS(setpgid);
				
			/* can anyone explain me the difference between
			   Solaris setpgrp and setsid? */
			ret = sys_setpgid(0, 0);
			if (ret) return ret;
			proc_clear_tty(current);
			return process_group(current);
		}
	case 2: /* getsid */
		{
			int (*sys_getsid)(pid_t) = (int (*)(pid_t))SYS(getsid);
			return sys_getsid(pid);
		}
	case 3: /* setsid */
		{
			int (*sys_setsid)(void) = (int (*)(void))SYS(setsid);
			return sys_setsid();
		}
	case 4: /* getpgid */
		{
			int (*sys_getpgid)(pid_t) = (int (*)(pid_t))SYS(getpgid);
			return sys_getpgid(pid);
		}
	case 5: /* setpgid */
		{
			int (*sys_setpgid)(pid_t,pid_t) = 
				(int (*)(pid_t,pid_t))SYS(setpgid);
			return sys_setpgid(pid,pgid);
		}
	}
	return -EINVAL;
}

asmlinkage int solaris_gettimeofday(u32 tim)
{
	int (*sys_gettimeofday)(struct timeval *, struct timezone *) =
		(int (*)(struct timeval *, struct timezone *))SYS(gettimeofday);
		
	return sys_gettimeofday((struct timeval *)(u64)tim, NULL);
}

#define RLIM_SOL_INFINITY32	0x7fffffff
#define RLIM_SOL_SAVED_MAX32	0x7ffffffe
#define RLIM_SOL_SAVED_CUR32	0x7ffffffd
#define RLIM_SOL_INFINITY	((u64)-3)
#define RLIM_SOL_SAVED_MAX	((u64)-2)
#define RLIM_SOL_SAVED_CUR	((u64)-1)
#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
#define RLIMIT_SOL_NOFILE	5
#define RLIMIT_SOL_VMEM		6

struct rlimit32 {
	u32	rlim_cur;
	u32	rlim_max;
};

asmlinkage int solaris_getrlimit(unsigned int resource, struct rlimit32 __user *rlim)
{
	struct rlimit r;
	int ret;
	mm_segment_t old_fs = get_fs ();
	int (*sys_getrlimit)(unsigned int, struct rlimit *) =
		(int (*)(unsigned int, struct rlimit *))SYS(getrlimit);

	if (resource > RLIMIT_SOL_VMEM)
		return -EINVAL;	
	switch (resource) {
	case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
	case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
	default: break;
	}
	set_fs (KERNEL_DS);
	ret = sys_getrlimit(resource, &r);
	set_fs (old_fs);
	if (!ret) {
		if (r.rlim_cur == RLIM_INFINITY)
			r.rlim_cur = RLIM_SOL_INFINITY32;
		else if ((u64)r.rlim_cur > RLIM_SOL_INFINITY32)
			r.rlim_cur = RLIM_SOL_SAVED_CUR32;
		if (r.rlim_max == RLIM_INFINITY)
			r.rlim_max = RLIM_SOL_INFINITY32;
		else if ((u64)r.rlim_max > RLIM_SOL_INFINITY32)
			r.rlim_max = RLIM_SOL_SAVED_MAX32;
		ret = put_user (r.rlim_cur, &rlim->rlim_cur);
		ret |= __put_user (r.rlim_max, &rlim->rlim_max);
	}
	return ret;
}

asmlinkage int solaris_setrlimit(unsigned int resource, struct rlimit32 __user *rlim)
{
	struct rlimit r, rold;
	int ret;
	mm_segment_t old_fs = get_fs ();
	int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
		(int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
	int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
		(int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);

	if (resource > RLIMIT_SOL_VMEM)
		return -EINVAL;	
	switch (resource) {
	case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
	case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
	default: break;
	}
	if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
	    __get_user (r.rlim_max, &rlim->rlim_max))
		return -EFAULT;
	set_fs (KERNEL_DS);
	ret = sys_getrlimit(resource, &rold);
	if (!ret) {
		if (r.rlim_cur == RLIM_SOL_INFINITY32)
			r.rlim_cur = RLIM_INFINITY;
		else if (r.rlim_cur == RLIM_SOL_SAVED_CUR32)
			r.rlim_cur = rold.rlim_cur;
		else if (r.rlim_cur == RLIM_SOL_SAVED_MAX32)
			r.rlim_cur = rold.rlim_max;
		if (r.rlim_max == RLIM_SOL_INFINITY32)
			r.rlim_max = RLIM_INFINITY;
		else if (r.rlim_max == RLIM_SOL_SAVED_CUR32)
			r.rlim_max = rold.rlim_cur;
		else if (r.rlim_max == RLIM_SOL_SAVED_MAX32)
			r.rlim_max = rold.rlim_max;
		ret = sys_setrlimit(resource, &r);
	}
	set_fs (old_fs);
	return ret;
}

asmlinkage int solaris_getrlimit64(unsigned int resource, struct rlimit __user *rlim)
{
	struct rlimit r;
	int ret;
	mm_segment_t old_fs = get_fs ();
	int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
		(int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);

	if (resource > RLIMIT_SOL_VMEM)
		return -EINVAL;	
	switch (resource) {
	case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
	case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
	default: break;
	}
	set_fs (KERNEL_DS);
	ret = sys_getrlimit(resource, &r);
	set_fs (old_fs);
	if (!ret) {
		if (r.rlim_cur == RLIM_INFINITY)
			r.rlim_cur = RLIM_SOL_INFINITY;
		if (r.rlim_max == RLIM_INFINITY)
			r.rlim_max = RLIM_SOL_INFINITY;
		ret = put_user (r.rlim_cur, &rlim->rlim_cur);
		ret |= __put_user (r.rlim_max, &rlim->rlim_max);
	}
	return ret;
}

asmlinkage int solaris_setrlimit64(unsigned int resource, struct rlimit __user *rlim)
{
	struct rlimit r, rold;
	int ret;
	mm_segment_t old_fs = get_fs ();
	int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
		(int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
	int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
		(int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);

	if (resource > RLIMIT_SOL_VMEM)
		return -EINVAL;	
	switch (resource) {
	case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
	case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
	default: break;
	}
	if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
	    __get_user (r.rlim_max, &rlim->rlim_max))
		return -EFAULT;
	set_fs (KERNEL_DS);
	ret = sys_getrlimit(resource, &rold);
	if (!ret) {
		if (r.rlim_cur == RLIM_SOL_INFINITY)
			r.rlim_cur = RLIM_INFINITY;
		else if (r.rlim_cur == RLIM_SOL_SAVED_CUR)
			r.rlim_cur = rold.rlim_cur;
		else if (r.rlim_cur == RLIM_SOL_SAVED_MAX)
			r.rlim_cur = rold.rlim_max;
		if (r.rlim_max == RLIM_SOL_INFINITY)
			r.rlim_max = RLIM_INFINITY;
		else if (r.rlim_max == RLIM_SOL_SAVED_CUR)
			r.rlim_max = rold.rlim_cur;
		else if (r.rlim_max == RLIM_SOL_SAVED_MAX)
			r.rlim_max = rold.rlim_max;
		ret = sys_setrlimit(resource, &r);
	}
	set_fs (old_fs);
	return ret;
}

struct sol_ntptimeval {
	struct compat_timeval time;
	s32 maxerror;
	s32 esterror;
};

struct sol_timex {
	u32 modes;
	s32 offset;
	s32 freq;
	s32 maxerror;
	s32 esterror;
	s32 status;
	s32 constant;
	s32 precision;
	s32 tolerance;
	s32 ppsfreq;
	s32 jitter;
	s32 shift;
	s32 stabil;
	s32 jitcnt;
	s32 calcnt;
	s32 errcnt;
	s32 stbcnt;
};

asmlinkage int solaris_ntp_gettime(struct sol_ntptimeval __user *ntp)
{
	int (*sys_adjtimex)(struct timex __user *) =
		(int (*)(struct timex __user *))SYS(adjtimex);
	struct timex t;
	int ret;
	mm_segment_t old_fs = get_fs();
	
	set_fs(KERNEL_DS);
	t.modes = 0;
	ret = sys_adjtimex(&t);
	set_fs(old_fs);
	if (ret < 0)
		return ret;
	ret = put_user (t.time.tv_sec, &ntp->time.tv_sec);
	ret |= __put_user (t.time.tv_usec, &ntp->time.tv_usec);
	ret |= __put_user (t.maxerror, &ntp->maxerror);
	ret |= __put_user (t.esterror, &ntp->esterror);
	return ret;	                        
}

asmlinkage int solaris_ntp_adjtime(struct sol_timex __user *txp)
{
	int (*sys_adjtimex)(struct timex __user *) =
		(int (*)(struct timex __user *))SYS(adjtimex);
	struct timex t;
	int ret, err;
	mm_segment_t old_fs = get_fs();

	ret = get_user (t.modes, &txp->modes);
	ret |= __get_user (t.offset, &txp->offset);
	ret |= __get_user (t.freq, &txp->freq);
	ret |= __get_user (t.maxerror, &txp->maxerror);
	ret |= __get_user (t.esterror, &txp->esterror);
	ret |= __get_user (t.status, &txp->status);
	ret |= __get_user (t.constant, &txp->constant);
	set_fs(KERNEL_DS);
	ret = sys_adjtimex(&t);
	set_fs(old_fs);
	if (ret < 0)
		return ret;
	err = put_user (t.offset, &txp->offset);
	err |= __put_user (t.freq, &txp->freq);
	err |= __put_user (t.maxerror, &txp->maxerror);
	err |= __put_user (t.esterror, &txp->esterror);
	err |= __put_user (t.status, &txp->status);
	err |= __put_user (t.constant, &txp->constant);
	err |= __put_user (t.precision, &txp->precision);
	err |= __put_user (t.tolerance, &txp->tolerance);
	err |= __put_user (t.ppsfreq, &txp->ppsfreq);
	err |= __put_user (t.jitter, &txp->jitter);
	err |= __put_user (t.shift, &txp->shift);
	err |= __put_user (t.stabil, &txp->stabil);
	err |= __put_user (t.jitcnt, &txp->jitcnt);
	err |= __put_user (t.calcnt, &txp->calcnt);
	err |= __put_user (t.errcnt, &txp->errcnt);
	err |= __put_user (t.stbcnt, &txp->stbcnt);
	if (err)
		return -EFAULT;
	return ret;
}

asmlinkage int do_sol_unimplemented(struct pt_regs *regs)
{
	printk ("Unimplemented Solaris syscall %d %08x %08x %08x %08x\n", 
			(int)regs->u_regs[UREG_G1], 
			(int)regs->u_regs[UREG_I0],
			(int)regs->u_regs[UREG_I1],
			(int)regs->u_regs[UREG_I2],
			(int)regs->u_regs[UREG_I3]);
	return -ENOSYS;
}

asmlinkage void solaris_register(void)
{
	set_personality(PER_SVR4);
}

extern long solaris_to_linux_signals[], linux_to_solaris_signals[];

struct exec_domain solaris_exec_domain = {
	.name =		"Solaris",
	.handler =	NULL,
	.pers_low =	1,		/* PER_SVR4 personality */
	.pers_high =	1,
	.signal_map =	solaris_to_linux_signals,
	.signal_invmap =linux_to_solaris_signals,
	.module =	THIS_MODULE,
	.next =		NULL
};

extern int init_socksys(void);

MODULE_AUTHOR("Jakub Jelinek (jj@ultra.linux.cz), Patrik Rak (prak3264@ss1000.ms.mff.cuni.cz)");
MODULE_DESCRIPTION("Solaris binary emulation module");
MODULE_LICENSE("GPL");

extern u32 tl0_solaris[8];
#define update_ttable(x) 										\
	tl0_solaris[3] = (((long)(x) - (long)tl0_solaris - 3) >> 2) | 0x40000000;			\
	wmb();		\
	__asm__ __volatile__ ("flush %0" : : "r" (&tl0_solaris[3]))

extern u32 solaris_sparc_syscall[];
extern u32 solaris_syscall[];
extern void cleanup_socksys(void);

extern u32 entry64_personality_patch;

static int __init solaris_init(void)
{
	int ret;

	SOLDD(("Solaris module at %p\n", solaris_sparc_syscall));
	register_exec_domain(&solaris_exec_domain);
	if ((ret = init_socksys())) {
		unregister_exec_domain(&solaris_exec_domain);
		return ret;
	}
	update_ttable(solaris_sparc_syscall);
	entry64_personality_patch |=
		(offsetof(struct task_struct, personality) +
		 (sizeof(unsigned long) - 1));
	wmb();
	__asm__ __volatile__("flush %0"
			     : : "r" (&entry64_personality_patch));
	return 0;
}

static void __exit solaris_exit(void)
{
	update_ttable(solaris_syscall);
	cleanup_socksys();
	unregister_exec_domain(&solaris_exec_domain);
}

module_init(solaris_init);
module_exit(solaris_exit);