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[PATCH] i386: fix-up schedule_timeout() usage
[deliverable/linux.git] / arch / mips / kernel / sysirix.c
CommitLineData
1da177e4
LT		 1/*
2 * sysirix.c: IRIX system call emulation.
3 *
4 * Copyright (C) 1996 David S. Miller
5 * Copyright (C) 1997 Miguel de Icaza
6 * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
7 */
8#include <linux/kernel.h>
9#include <linux/sched.h>
10#include <linux/binfmts.h>
11#include <linux/highuid.h>
12#include <linux/pagemap.h>
13#include <linux/mm.h>
14#include <linux/mman.h>
15#include <linux/slab.h>
16#include <linux/swap.h>
17#include <linux/errno.h>
18#include <linux/time.h>
19#include <linux/timex.h>
20#include <linux/times.h>
21#include <linux/elf.h>
22#include <linux/msg.h>
23#include <linux/shm.h>
24#include <linux/smp.h>
25#include <linux/smp_lock.h>
26#include <linux/utsname.h>
27#include <linux/file.h>
28#include <linux/vfs.h>
29#include <linux/namei.h>
30#include <linux/socket.h>
31#include <linux/security.h>
32#include <linux/syscalls.h>
33
34#include <asm/ptrace.h>
35#include <asm/page.h>
36#include <asm/uaccess.h>
37#include <asm/inventory.h>
38
39/* 2,191 lines of complete and utter shit coming up... */
40
41extern int max_threads;
42
43/* The sysmp commands supported thus far. */
44#define MP_NPROCS 1 /* # processor in complex */
45#define MP_NAPROCS 2 /* # active processors in complex */
46#define MP_PGSIZE 14 /* Return system page size in v1. */
47
48asmlinkage int irix_sysmp(struct pt_regs *regs)
49{
50 unsigned long cmd;
51 int base = 0;
52 int error = 0;
53
54 if(regs->regs[2] == 1000)
55 base = 1;
56 cmd = regs->regs[base + 4];
57 switch(cmd) {
58 case MP_PGSIZE:
59 error = PAGE_SIZE;
60 break;
61 case MP_NPROCS:
62 case MP_NAPROCS:
63 error = num_online_cpus();
64 break;
65 default:
66 printk("SYSMP[%s:%d]: Unsupported opcode %d\n",
67 current->comm, current->pid, (int)cmd);
68 error = -EINVAL;
69 break;
70 }
71
72 return error;
73}
74
75/* The prctl commands. */
76#define PR_MAXPROCS 1 /* Tasks/user. */
77#define PR_ISBLOCKED 2 /* If blocked, return 1. */
78#define PR_SETSTACKSIZE 3 /* Set largest task stack size. */
79#define PR_GETSTACKSIZE 4 /* Get largest task stack size. */
80#define PR_MAXPPROCS 5 /* Num parallel tasks. */
81#define PR_UNBLKONEXEC 6 /* When task exec/exit's, unblock. */
82#define PR_SETEXITSIG 8 /* When task exit's, set signal. */
83#define PR_RESIDENT 9 /* Make task unswappable. */
84#define PR_ATTACHADDR 10 /* (Re-)Connect a vma to a task. */
85#define PR_DETACHADDR 11 /* Disconnect a vma from a task. */
86#define PR_TERMCHILD 12 /* When parent sleeps with fishes, kill child. */
87#define PR_GETSHMASK 13 /* Get the sproc() share mask. */
88#define PR_GETNSHARE 14 /* Number of share group members. */
89#define PR_COREPID 15 /* Add task pid to name when it core. */
90#define PR_ATTACHADDRPERM 16 /* (Re-)Connect vma, with specified prot. */
91#define PR_PTHREADEXIT 17 /* Kill a pthread without prejudice. */
92
93asmlinkage int irix_prctl(struct pt_regs *regs)
94{
95 unsigned long cmd;
96 int error = 0, base = 0;
97
98 if (regs->regs[2] == 1000)
99 base = 1;
100 cmd = regs->regs[base + 4];
101 switch (cmd) {
102 case PR_MAXPROCS:
103 printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
104 current->comm, current->pid);
105 error = max_threads;
106 break;
107
108 case PR_ISBLOCKED: {
109 struct task_struct *task;
110
111 printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
112 current->comm, current->pid);
113 read_lock(&tasklist_lock);
114 task = find_task_by_pid(regs->regs[base + 5]);
115 error = -ESRCH;
116 if (error)
117 error = (task->run_list.next != NULL);
118 read_unlock(&tasklist_lock);
119 /* Can _your_ OS find this out that fast? */
120 break;
121 }
122
123 case PR_SETSTACKSIZE: {
124 long value = regs->regs[base + 5];
125
126 printk("irix_prctl[%s:%d]: Wants PR_SETSTACKSIZE<%08lx>\n",
127 current->comm, current->pid, (unsigned long) value);
128 if (value > RLIM_INFINITY)
129 value = RLIM_INFINITY;
130 if (capable(CAP_SYS_ADMIN)) {
131 task_lock(current->group_leader);
132 current->signal->rlim[RLIMIT_STACK].rlim_max =
133 current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
134 task_unlock(current->group_leader);
135 error = value;
136 break;
137 }
138 task_lock(current->group_leader);
139 if (value > current->signal->rlim[RLIMIT_STACK].rlim_max) {
140 error = -EINVAL;
141 task_unlock(current->group_leader);
142 break;
143 }
144 current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
145 task_unlock(current->group_leader);
146 error = value;
147 break;
148 }
149
150 case PR_GETSTACKSIZE:
151 printk("irix_prctl[%s:%d]: Wants PR_GETSTACKSIZE\n",
152 current->comm, current->pid);
153 error = current->signal->rlim[RLIMIT_STACK].rlim_cur;
154 break;
155
156 case PR_MAXPPROCS:
157 printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
158 current->comm, current->pid);
159 error = 1;
160 break;
161
162 case PR_UNBLKONEXEC:
163 printk("irix_prctl[%s:%d]: Wants PR_UNBLKONEXEC\n",
164 current->comm, current->pid);
165 error = -EINVAL;
166 break;
167
168 case PR_SETEXITSIG:
169 printk("irix_prctl[%s:%d]: Wants PR_SETEXITSIG\n",
170 current->comm, current->pid);
171
172 /* We can probably play some game where we set the task
173 * exit_code to some non-zero value when this is requested,
174 * and check whether exit_code is already set in do_exit().
175 */
176 error = -EINVAL;
177 break;
178
179 case PR_RESIDENT:
180 printk("irix_prctl[%s:%d]: Wants PR_RESIDENT\n",
181 current->comm, current->pid);
182 error = 0; /* Compatibility indeed. */
183 break;
184
185 case PR_ATTACHADDR:
186 printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDR\n",
187 current->comm, current->pid);
188 error = -EINVAL;
189 break;
190
191 case PR_DETACHADDR:
192 printk("irix_prctl[%s:%d]: Wants PR_DETACHADDR\n",
193 current->comm, current->pid);
194 error = -EINVAL;
195 break;
196
197 case PR_TERMCHILD:
198 printk("irix_prctl[%s:%d]: Wants PR_TERMCHILD\n",
199 current->comm, current->pid);
200 error = -EINVAL;
201 break;
202
203 case PR_GETSHMASK:
204 printk("irix_prctl[%s:%d]: Wants PR_GETSHMASK\n",
205 current->comm, current->pid);
206 error = -EINVAL; /* Until I have the sproc() stuff in. */
207 break;
208
209 case PR_GETNSHARE:
210 error = 0; /* Until I have the sproc() stuff in. */
211 break;
212
213 case PR_COREPID:
214 printk("irix_prctl[%s:%d]: Wants PR_COREPID\n",
215 current->comm, current->pid);
216 error = -EINVAL;
217 break;
218
219 case PR_ATTACHADDRPERM:
220 printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDRPERM\n",
221 current->comm, current->pid);
222 error = -EINVAL;
223 break;
224
225 case PR_PTHREADEXIT:
226 printk("irix_prctl[%s:%d]: Wants PR_PTHREADEXIT\n",
227 current->comm, current->pid);
228 do_exit(regs->regs[base + 5]);
229
230 default:
231 printk("irix_prctl[%s:%d]: Non-existant opcode %d\n",
232 current->comm, current->pid, (int)cmd);
233 error = -EINVAL;
234 break;
235 }
236
237 return error;
238}
239
240#undef DEBUG_PROCGRPS
241
242extern unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt);
243extern int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
244extern char *prom_getenv(char *name);
245extern long prom_setenv(char *name, char *value);
246
247/* The syssgi commands supported thus far. */
248#define SGI_SYSID 1 /* Return unique per-machine identifier. */
249#define SGI_INVENT 5 /* Fetch inventory */
250# define SGI_INV_SIZEOF 1
251# define SGI_INV_READ 2
252#define SGI_RDNAME 6 /* Return string name of a process. */
253#define SGI_SETNVRAM 8 /* Set PROM variable. */
254#define SGI_GETNVRAM 9 /* Get PROM variable. */
255#define SGI_SETPGID 21 /* Set process group id. */
256#define SGI_SYSCONF 22 /* POSIX sysconf garbage. */
257#define SGI_PATHCONF 24 /* POSIX sysconf garbage. */
258#define SGI_SETGROUPS 40 /* POSIX sysconf garbage. */
259#define SGI_GETGROUPS 41 /* POSIX sysconf garbage. */
260#define SGI_RUSAGE 56 /* BSD style rusage(). */
261#define SGI_SSYNC 62 /* Synchronous fs sync. */
262#define SGI_GETSID 65 /* SysVr4 get session id. */
263#define SGI_ELFMAP 68 /* Map an elf image. */
264#define SGI_TOSSTSAVE 108 /* Toss saved vma's. */
265#define SGI_FP_BCOPY 129 /* Should FPU bcopy be used on this machine? */
266#define SGI_PHYSP 1011 /* Translate virtual into physical page. */
267
268asmlinkage int irix_syssgi(struct pt_regs *regs)
269{
270 unsigned long cmd;
271 int retval, base = 0;
272
273 if (regs->regs[2] == 1000)
274 base = 1;
275
276 cmd = regs->regs[base + 4];
277 switch(cmd) {
278 case SGI_SYSID: {
279 char *buf = (char *) regs->regs[base + 5];
280
281 /* XXX Use ethernet addr.... */
282 retval = clear_user(buf, 64);
283 break;
284 }
285#if 0
286 case SGI_RDNAME: {
287 int pid = (int) regs->regs[base + 5];
288 char *buf = (char *) regs->regs[base + 6];
289 struct task_struct *p;
290 char tcomm[sizeof(current->comm)];
291
292 if (!access_ok(VERIFY_WRITE, buf, sizeof(tcomm))) {
293 retval = -EFAULT;
294 break;
295 }
296 read_lock(&tasklist_lock);
297 p = find_task_by_pid(pid);
298 if (!p) {
299 read_unlock(&tasklist_lock);
300 retval = -ESRCH;
301 break;
302 }
303 get_task_comm(tcomm, p);
304 read_unlock(&tasklist_lock);
305
306 /* XXX Need to check sizes. */
307 copy_to_user(buf, tcomm, sizeof(tcomm));
308 retval = 0;
309 break;
310 }
311
312 case SGI_GETNVRAM: {
313 char *name = (char *) regs->regs[base+5];
314 char *buf = (char *) regs->regs[base+6];
315 char *value;
316 return -EINVAL; /* til I fix it */
317 if (!access_ok(VERIFY_WRITE, buf, 128)) {
318 retval = -EFAULT;
319 break;
320 }
321 value = prom_getenv(name); /* PROM lock? */
322 if (!value) {
323 retval = -EINVAL;
324 break;
325 }
326 /* Do I strlen() for the length? */
327 copy_to_user(buf, value, 128);
328 retval = 0;
329 break;
330 }
331
332 case SGI_SETNVRAM: {
333 char *name = (char *) regs->regs[base+5];
334 char *value = (char *) regs->regs[base+6];
335 return -EINVAL; /* til I fix it */
336 retval = prom_setenv(name, value);
337 /* XXX make sure retval conforms to syssgi(2) */
338 printk("[%s:%d] setnvram(\"%s\", \"%s\"): retval %d",
339 current->comm, current->pid, name, value, retval);
340/* if (retval == PROM_ENOENT)
341 retval = -ENOENT; */
342 break;
343 }
344#endif
345
346 case SGI_SETPGID: {
347#ifdef DEBUG_PROCGRPS
348 printk("[%s:%d] setpgid(%d, %d) ",
349 current->comm, current->pid,
350 (int) regs->regs[base + 5], (int)regs->regs[base + 6]);
351#endif
352 retval = sys_setpgid(regs->regs[base + 5], regs->regs[base + 6]);
353
354#ifdef DEBUG_PROCGRPS
355 printk("retval=%d\n", retval);
356#endif
357 }
358
359 case SGI_SYSCONF: {
360 switch(regs->regs[base + 5]) {
361 case 1:
362 retval = (MAX_ARG_PAGES >> 4); /* XXX estimate... */
363 goto out;
364 case 2:
365 retval = max_threads;
366 goto out;
367 case 3:
368 retval = HZ;
369 goto out;
370 case 4:
371 retval = NGROUPS_MAX;
372 goto out;
373 case 5:
374 retval = NR_OPEN;
375 goto out;
376 case 6:
377 retval = 1;
378 goto out;
379 case 7:
380 retval = 1;
381 goto out;
382 case 8:
383 retval = 199009;
384 goto out;
385 case 11:
386 retval = PAGE_SIZE;
387 goto out;
388 case 12:
389 retval = 4;
390 goto out;
391 case 25:
392 case 26:
393 case 27:
394 case 28:
395 case 29:
396 case 30:
397 retval = 0;
398 goto out;
399 case 31:
400 retval = 32;
401 goto out;
402 default:
403 retval = -EINVAL;
404 goto out;
405 };
406 }
407
408 case SGI_SETGROUPS:
409 retval = sys_setgroups((int) regs->regs[base + 5],
410 (gid_t *) regs->regs[base + 6]);
411 break;
412
413 case SGI_GETGROUPS:
414 retval = sys_getgroups((int) regs->regs[base + 5],
415 (gid_t *) regs->regs[base + 6]);
416 break;
417
418 case SGI_RUSAGE: {
419 struct rusage *ru = (struct rusage *) regs->regs[base + 6];
420
421 switch((int) regs->regs[base + 5]) {
422 case 0:
423 /* rusage self */
424 retval = getrusage(current, RUSAGE_SELF, ru);
425 goto out;
426
427 case -1:
428 /* rusage children */
429 retval = getrusage(current, RUSAGE_CHILDREN, ru);
430 goto out;
431
432 default:
433 retval = -EINVAL;
434 goto out;
435 };
436 }
437
438 case SGI_SSYNC:
439 sys_sync();
440 retval = 0;
441 break;
442
443 case SGI_GETSID:
444#ifdef DEBUG_PROCGRPS
445 printk("[%s:%d] getsid(%d) ", current->comm, current->pid,
446 (int) regs->regs[base + 5]);
447#endif
448 retval = sys_getsid(regs->regs[base + 5]);
449#ifdef DEBUG_PROCGRPS
450 printk("retval=%d\n", retval);
451#endif
452 break;
453
454 case SGI_ELFMAP:
455 retval = irix_mapelf((int) regs->regs[base + 5],
456 (struct elf_phdr *) regs->regs[base + 6],
457 (int) regs->regs[base + 7]);
458 break;
459
460 case SGI_TOSSTSAVE:
461 /* XXX We don't need to do anything? */
462 retval = 0;
463 break;
464
465 case SGI_FP_BCOPY:
466 retval = 0;
467 break;
468
469 case SGI_PHYSP: {
470 unsigned long addr = regs->regs[base + 5];
471 int *pageno = (int *) (regs->regs[base + 6]);
472 struct mm_struct *mm = current->mm;
473 pgd_t *pgdp;
474 pmd_t *pmdp;
475 pte_t *ptep;
476
477 if (!access_ok(VERIFY_WRITE, pageno, sizeof(int)))
478 return -EFAULT;
479
480 down_read(&mm->mmap_sem);
481 pgdp = pgd_offset(mm, addr);
482 pmdp = pmd_offset(pgdp, addr);
483 ptep = pte_offset(pmdp, addr);
484 retval = -EINVAL;
485 if (ptep) {
486 pte_t pte = *ptep;
487
488 if (pte_val(pte) & (_PAGE_VALID | _PAGE_PRESENT)) {
489 retval = put_user((pte_val(pte) & PAGE_MASK) >>
490 PAGE_SHIFT, pageno);
491 }
492 }
493 up_read(&mm->mmap_sem);
494 break;
495 }
496
497 case SGI_INVENT: {
498 int arg1 = (int) regs->regs [base + 5];
499 void *buffer = (void *) regs->regs [base + 6];
500 int count = (int) regs->regs [base + 7];
501
502 switch (arg1) {
503 case SGI_INV_SIZEOF:
504 retval = sizeof (inventory_t);
505 break;
506 case SGI_INV_READ:
507 retval = dump_inventory_to_user (buffer, count);
508 break;
509 default:
510 retval = -EINVAL;
511 }
512 break;
513 }
514
515 default:
516 printk("irix_syssgi: Unsupported command %d\n", (int)cmd);
517 retval = -EINVAL;
518 break;
519 };
520
521out:
522 return retval;
523}
524
525asmlinkage int irix_gtime(struct pt_regs *regs)
526{
527 return get_seconds();
528}
529
530/*
531 * IRIX is completely broken... it returns 0 on success, otherwise
532 * ENOMEM.
533 */
534asmlinkage int irix_brk(unsigned long brk)
535{
536 unsigned long rlim;
537 unsigned long newbrk, oldbrk;
538 struct mm_struct *mm = current->mm;
539 int ret;
540
541 down_write(&mm->mmap_sem);
542 if (brk < mm->end_code) {
543 ret = -ENOMEM;
544 goto out;
545 }
546
547 newbrk = PAGE_ALIGN(brk);
548 oldbrk = PAGE_ALIGN(mm->brk);
549 if (oldbrk == newbrk) {
550 mm->brk = brk;
551 ret = 0;
552 goto out;
553 }
554
555 /*
556 * Always allow shrinking brk
557 */
558 if (brk <= mm->brk) {
559 mm->brk = brk;
560 do_munmap(mm, newbrk, oldbrk-newbrk);
561 ret = 0;
562 goto out;
563 }
564 /*
565 * Check against rlimit and stack..
566 */
567 rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
568 if (rlim >= RLIM_INFINITY)
569 rlim = ~0;
570 if (brk - mm->end_code > rlim) {
571 ret = -ENOMEM;
572 goto out;
573 }
574
575 /*
576 * Check against existing mmap mappings.
577 */
578 if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) {
579 ret = -ENOMEM;
580 goto out;
581 }
582
583 /*
584 * Check if we have enough memory..
585 */
586 if (security_vm_enough_memory((newbrk-oldbrk) >> PAGE_SHIFT)) {
587 ret = -ENOMEM;
588 goto out;
589 }
590
591 /*
592 * Ok, looks good - let it rip.
593 */
594 mm->brk = brk;
595 do_brk(oldbrk, newbrk-oldbrk);
596 ret = 0;
597
598out:
599 up_write(&mm->mmap_sem);
600 return ret;
601}
602
603asmlinkage int irix_getpid(struct pt_regs *regs)
604{
605 regs->regs[3] = current->real_parent->pid;
606 return current->pid;
607}
608
609asmlinkage int irix_getuid(struct pt_regs *regs)
610{
611 regs->regs[3] = current->euid;
612 return current->uid;
613}
614
615asmlinkage int irix_getgid(struct pt_regs *regs)
616{
617 regs->regs[3] = current->egid;
618 return current->gid;
619}
620
621asmlinkage int irix_stime(int value)
622{
623 int err;
624 struct timespec tv;
625
626 tv.tv_sec = value;
627 tv.tv_nsec = 0;
628 err = security_settime(&tv, NULL);
629 if (err)
630 return err;
631
632 write_seqlock_irq(&xtime_lock);
633 xtime.tv_sec = value;
634 xtime.tv_nsec = 0;
b149ee22 635 ntp_clear();
1da177e4
LT		 636 write_sequnlock_irq(&xtime_lock);
637
638 return 0;
639}
640
641static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
642{
643 value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
644 value->tv_sec = jiffies / HZ;
645}
646
647static inline void getitimer_real(struct itimerval *value)
648{
649 register unsigned long val, interval;
650
651 interval = current->it_real_incr;
652 val = 0;
653 if (del_timer(&current->real_timer)) {
654 unsigned long now = jiffies;
655 val = current->real_timer.expires;
656 add_timer(&current->real_timer);
657 /* look out for negative/zero itimer.. */
658 if (val <= now)
659 val = now+1;
660 val -= now;
661 }
662 jiffiestotv(val, &value->it_value);
663 jiffiestotv(interval, &value->it_interval);
664}
665
666asmlinkage unsigned int irix_alarm(unsigned int seconds)
667{
668 struct itimerval it_new, it_old;
669 unsigned int oldalarm;
670
671 if (!seconds) {
672 getitimer_real(&it_old);
673 del_timer(&current->real_timer);
674 } else {
675 it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
676 it_new.it_value.tv_sec = seconds;
677 it_new.it_value.tv_usec = 0;
678 do_setitimer(ITIMER_REAL, &it_new, &it_old);
679 }
680 oldalarm = it_old.it_value.tv_sec;
681 /*
682 * ehhh.. We can't return 0 if we have an alarm pending ...
683 * And we'd better return too much than too little anyway
684 */
685 if (it_old.it_value.tv_usec)
686 oldalarm++;
687
688 return oldalarm;
689}
690
691asmlinkage int irix_pause(void)
692{
693 current->state = TASK_INTERRUPTIBLE;
694 schedule();
695
696 return -EINTR;
697}
698
699/* XXX need more than this... */
700asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
701 char *type, void *data, int datalen)
702{
703 printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
704 current->comm, current->pid,
705 dev_name, dir_name, flags, type, data, datalen);
706
707 return sys_mount(dev_name, dir_name, type, flags, data);
708}
709
710struct irix_statfs {
711 short f_type;
712 long f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
713 char f_fname[6], f_fpack[6];
714};
715
716asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
717 int len, int fs_type)
718{
719 struct nameidata nd;
720 struct kstatfs kbuf;
721 int error, i;
722
723 /* We don't support this feature yet. */
724 if (fs_type) {
725 error = -EINVAL;
726 goto out;
727 }
728 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
729 error = -EFAULT;
730 goto out;
731 }
732 error = user_path_walk(path, &nd);
733 if (error)
734 goto out;
735
736 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
737 if (error)
738 goto dput_and_out;
739
740 __put_user(kbuf.f_type, &buf->f_type);
741 __put_user(kbuf.f_bsize, &buf->f_bsize);
742 __put_user(kbuf.f_frsize, &buf->f_frsize);
743 __put_user(kbuf.f_blocks, &buf->f_blocks);
744 __put_user(kbuf.f_bfree, &buf->f_bfree);
745 __put_user(kbuf.f_files, &buf->f_files);
746 __put_user(kbuf.f_ffree, &buf->f_ffree);
747 for (i = 0; i < 6; i++) {
748 __put_user(0, &buf->f_fname[i]);
749 __put_user(0, &buf->f_fpack[i]);
750 }
751 error = 0;
752
753dput_and_out:
754 path_release(&nd);
755out:
756 return error;
757}
758
759asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
760{
761 struct kstatfs kbuf;
762 struct file *file;
763 int error, i;
764
765 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
766 error = -EFAULT;
767 goto out;
768 }
769 if (!(file = fget(fd))) {
770 error = -EBADF;
771 goto out;
772 }
773
774 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
775 if (error)
776 goto out_f;
777
778 __put_user(kbuf.f_type, &buf->f_type);
779 __put_user(kbuf.f_bsize, &buf->f_bsize);
780 __put_user(kbuf.f_frsize, &buf->f_frsize);
781 __put_user(kbuf.f_blocks, &buf->f_blocks);
782 __put_user(kbuf.f_bfree, &buf->f_bfree);
783 __put_user(kbuf.f_files, &buf->f_files);
784 __put_user(kbuf.f_ffree, &buf->f_ffree);
785 for(i = 0; i < 6; i++) {
786 __put_user(0, &buf->f_fname[i]);
787 __put_user(0, &buf->f_fpack[i]);
788 }
789
790out_f:
791 fput(file);
792out:
793 return error;
794}
795
796asmlinkage int irix_setpgrp(int flags)
797{
798 int error;
799
800#ifdef DEBUG_PROCGRPS
801 printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
802#endif
803 if(!flags)
804 error = process_group(current);
805 else
806 error = sys_setsid();
807#ifdef DEBUG_PROCGRPS
808 printk("returning %d\n", process_group(current));
809#endif
810
811 return error;
812}
813
814asmlinkage int irix_times(struct tms * tbuf)
815{
816 int err = 0;
817
818 if (tbuf) {
819 if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
820 return -EFAULT;
821 err |= __put_user(current->utime, &tbuf->tms_utime);
822 err |= __put_user(current->stime, &tbuf->tms_stime);
823 err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
824 err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
825 }
826
827 return err;
828}
829
830asmlinkage int irix_exec(struct pt_regs *regs)
831{
832 int error, base = 0;
833 char *filename;
834
835 if(regs->regs[2] == 1000)
836 base = 1;
837 filename = getname((char *) (long)regs->regs[base + 4]);
838 error = PTR_ERR(filename);
839 if (IS_ERR(filename))
840 return error;
841
842 error = do_execve(filename, (char **) (long)regs->regs[base + 5],
843 (char **) 0, regs);
844 putname(filename);
845
846 return error;
847}
848
849asmlinkage int irix_exece(struct pt_regs *regs)
850{
851 int error, base = 0;
852 char *filename;
853
854 if (regs->regs[2] == 1000)
855 base = 1;
856 filename = getname((char *) (long)regs->regs[base + 4]);
857 error = PTR_ERR(filename);
858 if (IS_ERR(filename))
859 return error;
860 error = do_execve(filename, (char **) (long)regs->regs[base + 5],
861 (char **) (long)regs->regs[base + 6], regs);
862 putname(filename);
863
864 return error;
865}
866
867asmlinkage unsigned long irix_gethostid(void)
868{
869 printk("[%s:%d]: irix_gethostid() called...\n",
870 current->comm, current->pid);
871
872 return -EINVAL;
873}
874
875asmlinkage unsigned long irix_sethostid(unsigned long val)
876{
877 printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
878 current->comm, current->pid, val);
879
880 return -EINVAL;
881}
882
883asmlinkage int irix_socket(int family, int type, int protocol)
884{
885 switch(type) {
886 case 1:
887 type = SOCK_DGRAM;
888 break;
889
890 case 2:
891 type = SOCK_STREAM;
892 break;
893
894 case 3:
895 type = 9; /* Invalid... */
896 break;
897
898 case 4:
899 type = SOCK_RAW;
900 break;
901
902 case 5:
903 type = SOCK_RDM;
904 break;
905
906 case 6:
907 type = SOCK_SEQPACKET;
908 break;
909
910 default:
911 break;
912 }
913
914 return sys_socket(family, type, protocol);
915}
916
917asmlinkage int irix_getdomainname(char *name, int len)
918{
919 int error;
920
921 if (!access_ok(VERIFY_WRITE, name, len))
922 return -EFAULT;
923
924 down_read(&uts_sem);
925 if (len > __NEW_UTS_LEN)
926 len = __NEW_UTS_LEN;
927 error = 0;
928 if (copy_to_user(name, system_utsname.domainname, len))
929 error = -EFAULT;
930 up_read(&uts_sem);
931
932 return error;
933}
934
935asmlinkage unsigned long irix_getpagesize(void)
936{
937 return PAGE_SIZE;
938}
939
940asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
941 unsigned long arg2, unsigned long arg3,
942 unsigned long arg4)
943{
944 switch (opcode) {
945 case 0:
946 return sys_msgget((key_t) arg0, (int) arg1);
947 case 1:
948 return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
949 case 2:
950 return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
951 (size_t) arg2, (long) arg3, (int) arg4);
952 case 3:
953 return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
954 (size_t) arg2, (int) arg3);
955 default:
956 return -EINVAL;
957 }
958}
959
960asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
961 unsigned long arg2, unsigned long arg3)
962{
963 switch (opcode) {
964 case 0:
965 return do_shmat((int) arg0, (char *)arg1, (int) arg2,
966 (unsigned long *) arg3);
967 case 1:
968 return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
969 case 2:
970 return sys_shmdt((char *)arg0);
971 case 3:
972 return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
973 default:
974 return -EINVAL;
975 }
976}
977
978asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
979 unsigned long arg2, int arg3)
980{
981 switch (opcode) {
982 case 0:
983 return sys_semctl((int) arg0, (int) arg1, (int) arg2,
984 (union semun) arg3);
985 case 1:
986 return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
987 case 2:
988 return sys_semop((int) arg0, (struct sembuf *)arg1,
989 (unsigned int) arg2);
990 default:
991 return -EINVAL;
992 }
993}
994
995static inline loff_t llseek(struct file *file, loff_t offset, int origin)
996{
997 loff_t (*fn)(struct file *, loff_t, int);
998 loff_t retval;
999
1000 fn = default_llseek;
1001 if (file->f_op && file->f_op->llseek)
1002 fn = file->f_op->llseek;
1003 lock_kernel();
1004 retval = fn(file, offset, origin);
1005 unlock_kernel();
1006 return retval;
1007}
1008
1009asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
1010 int origin)
1011{
1012 int retval;
1013 struct file * file;
1014 loff_t offset;
1015
1016 retval = -EBADF;
1017 file = fget(fd);
1018 if (!file)
1019 goto bad;
1020 retval = -EINVAL;
1021 if (origin > 2)
1022 goto out_putf;
1023
1024 offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
1025 retval = (int) offset;
1026
1027out_putf:
1028 fput(file);
1029bad:
1030 return retval;
1031}
1032
1033asmlinkage int irix_sginap(int ticks)
1034{
1035 current->state = TASK_INTERRUPTIBLE;
1036 schedule_timeout(ticks);
1037 return 0;
1038}
1039
1040asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
1041{
1042 return -EINVAL;
1043}
1044
1045asmlinkage int irix_gettimeofday(struct timeval *tv)
1046{
1047 time_t sec;
1048 long nsec, seq;
1049 int err;
1050
1051 if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
1052 return -EFAULT;
1053
1054 do {
1055 seq = read_seqbegin(&xtime_lock);
1056 sec = xtime.tv_sec;
1057 nsec = xtime.tv_nsec;
1058 } while (read_seqretry(&xtime_lock, seq));
1059
1060 err = __put_user(sec, &tv->tv_sec);
1061 err |= __put_user((nsec / 1000), &tv->tv_usec);
1062
1063 return err;
1064}
1065
1066#define IRIX_MAP_AUTOGROW 0x40
1067
1068asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
1069 int flags, int fd, off_t offset)
1070{
1071 struct file *file = NULL;
1072 unsigned long retval;
1073
1074 if (!(flags & MAP_ANONYMOUS)) {
1075 if (!(file = fget(fd)))
1076 return -EBADF;
1077
1078 /* Ok, bad taste hack follows, try to think in something else
1079 * when reading this. */
1080 if (flags & IRIX_MAP_AUTOGROW) {
1081 unsigned long old_pos;
1082 long max_size = offset + len;
1083
1084 if (max_size > file->f_dentry->d_inode->i_size) {
1085 old_pos = sys_lseek (fd, max_size - 1, 0);
1086 sys_write (fd, "", 1);
1087 sys_lseek (fd, old_pos, 0);
1088 }
1089 }
1090 }
1091
1092 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1093
1094 down_write(&current->mm->mmap_sem);
1095 retval = do_mmap(file, addr, len, prot, flags, offset);
1096 up_write(&current->mm->mmap_sem);
1097 if (file)
1098 fput(file);
1099
1100 return retval;
1101}
1102
1103asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
1104{
1105 printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
1106 current->comm, current->pid, addr, len, behavior);
1107
1108 return -EINVAL;
1109}
1110
1111asmlinkage int irix_pagelock(char *addr, int len, int op)
1112{
1113 printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
1114 current->comm, current->pid, addr, len, op);
1115
1116 return -EINVAL;
1117}
1118
1119asmlinkage int irix_quotactl(struct pt_regs *regs)
1120{
1121 printk("[%s:%d] Wheee.. irix_quotactl()\n",
1122 current->comm, current->pid);
1123
1124 return -EINVAL;
1125}
1126
1127asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
1128{
1129 int error;
1130
1131#ifdef DEBUG_PROCGRPS
1132 printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
1133 pid, pgrp);
1134#endif
1135 if(!pid)
1136 pid = current->pid;
1137
1138 /* Wheee, weird sysv thing... */
1139 if ((pgrp == 0) && (pid == current->pid))
1140 error = sys_setsid();
1141 else
1142 error = sys_setpgid(pid, pgrp);
1143
1144#ifdef DEBUG_PROCGRPS
1145 printk("error = %d\n", error);
1146#endif
1147
1148 return error;
1149}
1150
1151asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
1152{
1153 printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
1154 current->comm, current->pid, cmd, buf, cnt);
1155
1156 return -EINVAL;
1157}
1158
1159struct iuname {
1160 char sysname[257], nodename[257], release[257];
1161 char version[257], machine[257];
1162 char m_type[257], base_rel[257];
1163 char _unused0[257], _unused1[257], _unused2[257];
1164 char _unused3[257], _unused4[257], _unused5[257];
1165};
1166
1167asmlinkage int irix_uname(struct iuname *buf)
1168{
1169 down_read(&uts_sem);
1170 if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
1171 || copy_to_user(system_utsname.nodename, buf->nodename, 65)
1172 || copy_to_user(system_utsname.release, buf->release, 65)
1173 || copy_to_user(system_utsname.version, buf->version, 65)
1174 || copy_to_user(system_utsname.machine, buf->machine, 65)) {
1175 return -EFAULT;
1176 }
1177 up_read(&uts_sem);
1178
1179 return 1;
1180}
1181
1182#undef DEBUG_XSTAT
1183
1184static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
1185{
1186 struct xstat32 {
1187 u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
1188 u32 st_rdev, st_pad2[2], st_size, st_pad3;
1189 u32 st_atime0, st_atime1;
1190 u32 st_mtime0, st_mtime1;
1191 u32 st_ctime0, st_ctime1;
1192 u32 st_blksize, st_blocks;
1193 char st_fstype[16];
1194 u32 st_pad4[8];
1195 } ub;
1196
1197 if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1198 return -EOVERFLOW;
1199 ub.st_dev = sysv_encode_dev(stat->dev);
1200 ub.st_ino = stat->ino;
1201 ub.st_mode = stat->mode;
1202 ub.st_nlink = stat->nlink;
1203 SET_UID(ub.st_uid, stat->uid);
1204 SET_GID(ub.st_gid, stat->gid);
1205 ub.st_rdev = sysv_encode_dev(stat->rdev);
1206#if BITS_PER_LONG == 32
1207 if (stat->size > MAX_NON_LFS)
1208 return -EOVERFLOW;
1209#endif
1210 ub.st_size = stat->size;
1211 ub.st_atime0 = stat->atime.tv_sec;
1212 ub.st_atime1 = stat->atime.tv_nsec;
1213 ub.st_mtime0 = stat->mtime.tv_sec;
1214 ub.st_mtime1 = stat->atime.tv_nsec;
1215 ub.st_ctime0 = stat->ctime.tv_sec;
1216 ub.st_ctime1 = stat->atime.tv_nsec;
1217 ub.st_blksize = stat->blksize;
1218 ub.st_blocks = stat->blocks;
1219 strcpy (ub.st_fstype, "efs");
1220
1221 return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
1222}
1223
1224static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
1225{
1226 struct xstat64 {
1227 u32 st_dev; s32 st_pad1[3];
1228 unsigned long long st_ino;
1229 u32 st_mode;
1230 u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
1231 s32 st_pad2[2];
1232 long long st_size;
1233 s32 st_pad3;
1234 struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
1235 s32 st_blksize;
1236 long long st_blocks;
1237 char st_fstype[16];
1238 s32 st_pad4[8];
1239 } ks;
1240
1241 if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1242 return -EOVERFLOW;
1243
1244 ks.st_dev = sysv_encode_dev(stat->dev);
1245 ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
1246 ks.st_ino = (unsigned long long) stat->ino;
1247 ks.st_mode = (u32) stat->mode;
1248 ks.st_nlink = (u32) stat->nlink;
1249 ks.st_uid = (s32) stat->uid;
1250 ks.st_gid = (s32) stat->gid;
1251 ks.st_rdev = sysv_encode_dev (stat->rdev);
1252 ks.st_pad2[0] = ks.st_pad2[1] = 0;
1253 ks.st_size = (long long) stat->size;
1254 ks.st_pad3 = 0;
1255
1256 /* XXX hackety hack... */
1257 ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
1258 ks.st_atime.tv_nsec = stat->atime.tv_nsec;
1259 ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
1260 ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
1261 ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
1262 ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
1263
1264 ks.st_blksize = (s32) stat->blksize;
1265 ks.st_blocks = (long long) stat->blocks;
1266 memset(ks.st_fstype, 0, 16);
1267 ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
1268 ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
1269
1270 /* Now write it all back. */
1271 return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
1272}
1273
1274asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
1275{
1276 int retval;
1277 struct kstat stat;
1278
1279#ifdef DEBUG_XSTAT
1280 printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
1281 current->comm, current->pid, version, filename, statbuf);
1282#endif
1283
1284 retval = vfs_stat(filename, &stat);
1285 if (!retval) {
1286 switch(version) {
1287 case 2:
1288 retval = irix_xstat32_xlate(&stat, statbuf);
1289 break;
1290 case 3:
1291 retval = irix_xstat64_xlate(&stat, statbuf);
1292 break;
1293 default:
1294 retval = -EINVAL;
1295 }
1296 }
1297 return retval;
1298}
1299
1300asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
1301{
1302 int error;
1303 struct kstat stat;
1304
1305#ifdef DEBUG_XSTAT
1306 printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
1307 current->comm, current->pid, version, filename, statbuf);
1308#endif
1309
1310 error = vfs_lstat(filename, &stat);
1311
1312 if (!error) {
1313 switch (version) {
1314 case 2:
1315 error = irix_xstat32_xlate(&stat, statbuf);
1316 break;
1317 case 3:
1318 error = irix_xstat64_xlate(&stat, statbuf);
1319 break;
1320 default:
1321 error = -EINVAL;
1322 }
1323 }
1324 return error;
1325}
1326
1327asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
1328{
1329 int error;
1330 struct kstat stat;
1331
1332#ifdef DEBUG_XSTAT
1333 printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
1334 current->comm, current->pid, version, fd, statbuf);
1335#endif
1336
1337 error = vfs_fstat(fd, &stat);
1338 if (!error) {
1339 switch (version) {
1340 case 2:
1341 error = irix_xstat32_xlate(&stat, statbuf);
1342 break;
1343 case 3:
1344 error = irix_xstat64_xlate(&stat, statbuf);
1345 break;
1346 default:
1347 error = -EINVAL;
1348 }
1349 }
1350 return error;
1351}
1352
1353asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
1354{
1355 int retval;
1356 printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
1357 current->comm, current->pid, ver, filename, mode, dev);
1358
1359 switch(ver) {
1360 case 2:
1361 /* shouldn't we convert here as well as on stat()? */
1362 retval = sys_mknod(filename, mode, dev);
1363 break;
1364
1365 default:
1366 retval = -EINVAL;
1367 break;
1368 };
1369
1370 return retval;
1371}
1372
1373asmlinkage int irix_swapctl(int cmd, char *arg)
1374{
1375 printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
1376 current->comm, current->pid, cmd, arg);
1377
1378 return -EINVAL;
1379}
1380
1381struct irix_statvfs {
1382 u32 f_bsize; u32 f_frsize; u32 f_blocks;
1383 u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
1384 u32 f_fsid; char f_basetype[16];
1385 u32 f_flag; u32 f_namemax;
1386 char f_fstr[32]; u32 f_filler[16];
1387};
1388
1389asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
1390{
1391 struct nameidata nd;
1392 struct kstatfs kbuf;
1393 int error, i;
1394
1395 printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
1396 current->comm, current->pid, fname, buf);
1397 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1398 error = -EFAULT;
1399 goto out;
1400 }
1401 error = user_path_walk(fname, &nd);
1402 if (error)
1403 goto out;
1404 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1405 if (error)
1406 goto dput_and_out;
1407
1408 __put_user(kbuf.f_bsize, &buf->f_bsize);
1409 __put_user(kbuf.f_frsize, &buf->f_frsize);
1410 __put_user(kbuf.f_blocks, &buf->f_blocks);
1411 __put_user(kbuf.f_bfree, &buf->f_bfree);
1412 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1413 __put_user(kbuf.f_files, &buf->f_files);
1414 __put_user(kbuf.f_ffree, &buf->f_ffree);
1415 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1416#ifdef __MIPSEB__
1417 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1418#else
1419 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1420#endif
1421 for (i = 0; i < 16; i++)
1422 __put_user(0, &buf->f_basetype[i]);
1423 __put_user(0, &buf->f_flag);
1424 __put_user(kbuf.f_namelen, &buf->f_namemax);
1425 for (i = 0; i < 32; i++)
1426 __put_user(0, &buf->f_fstr[i]);
1427
1428 error = 0;
1429
1430dput_and_out:
1431 path_release(&nd);
1432out:
1433 return error;
1434}
1435
1436asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
1437{
1438 struct kstatfs kbuf;
1439 struct file *file;
1440 int error, i;
1441
1442 printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
1443 current->comm, current->pid, fd, buf);
1444
1445 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1446 error = -EFAULT;
1447 goto out;
1448 }
1449 if (!(file = fget(fd))) {
1450 error = -EBADF;
1451 goto out;
1452 }
1453 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1454 if (error)
1455 goto out_f;
1456
1457 __put_user(kbuf.f_bsize, &buf->f_bsize);
1458 __put_user(kbuf.f_frsize, &buf->f_frsize);
1459 __put_user(kbuf.f_blocks, &buf->f_blocks);
1460 __put_user(kbuf.f_bfree, &buf->f_bfree);
1461 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1462 __put_user(kbuf.f_files, &buf->f_files);
1463 __put_user(kbuf.f_ffree, &buf->f_ffree);
1464 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1465#ifdef __MIPSEB__
1466 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1467#else
1468 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1469#endif
1470 for(i = 0; i < 16; i++)
1471 __put_user(0, &buf->f_basetype[i]);
1472 __put_user(0, &buf->f_flag);
1473 __put_user(kbuf.f_namelen, &buf->f_namemax);
1474 __clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
1475
1476out_f:
1477 fput(file);
1478out:
1479 return error;
1480}
1481
1482asmlinkage int irix_priocntl(struct pt_regs *regs)
1483{
1484 printk("[%s:%d] Wheee.. irix_priocntl()\n",
1485 current->comm, current->pid);
1486
1487 return -EINVAL;
1488}
1489
1490asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
1491{
1492 printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
1493 current->comm, current->pid, pid, sig, code, val);
1494
1495 return -EINVAL;
1496}
1497
1498asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
1499{
1500 int retval;
1501
1502 if (size1) {
1503 retval = -EINVAL;
1504 goto out;
1505 }
1506 retval = sys_truncate(name, size2);
1507
1508out:
1509 return retval;
1510}
1511
1512asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
1513{
1514 int retval;
1515
1516 if (size1) {
1517 retval = -EINVAL;
1518 goto out;
1519 }
1520 retval = sys_ftruncate(fd, size2);
1521
1522out:
1523 return retval;
1524}
1525
1526asmlinkage int irix_mmap64(struct pt_regs *regs)
1527{
1528 int len, prot, flags, fd, off1, off2, error, base = 0;
1529 unsigned long addr, pgoff, *sp;
1530 struct file *file = NULL;
1531
1532 if (regs->regs[2] == 1000)
1533 base = 1;
1534 sp = (unsigned long *) (regs->regs[29] + 16);
1535 addr = regs->regs[base + 4];
1536 len = regs->regs[base + 5];
1537 prot = regs->regs[base + 6];
1538 if (!base) {
1539 flags = regs->regs[base + 7];
1540 if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
1541 error = -EFAULT;
1542 goto out;
1543 }
1544 fd = sp[0];
1545 __get_user(off1, &sp[1]);
1546 __get_user(off2, &sp[2]);
1547 } else {
1548 if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
1549 error = -EFAULT;
1550 goto out;
1551 }
1552 __get_user(flags, &sp[0]);
1553 __get_user(fd, &sp[1]);
1554 __get_user(off1, &sp[2]);
1555 __get_user(off2, &sp[3]);
1556 }
1557
1558 if (off1 & PAGE_MASK) {
1559 error = -EOVERFLOW;
1560 goto out;
1561 }
1562
1563 pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
1564
1565 if (!(flags & MAP_ANONYMOUS)) {
1566 if (!(file = fget(fd))) {
1567 error = -EBADF;
1568 goto out;
1569 }
1570
1571 /* Ok, bad taste hack follows, try to think in something else
1572 when reading this */
1573 if (flags & IRIX_MAP_AUTOGROW) {
1574 unsigned long old_pos;
1575 long max_size = off2 + len;
1576
1577 if (max_size > file->f_dentry->d_inode->i_size) {
1578 old_pos = sys_lseek (fd, max_size - 1, 0);
1579 sys_write (fd, "", 1);
1580 sys_lseek (fd, old_pos, 0);
1581 }
1582 }
1583 }
1584
1585 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1586
1587 down_write(&current->mm->mmap_sem);
1588 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1589 up_write(&current->mm->mmap_sem);
1590
1591 if (file)
1592 fput(file);
1593
1594out:
1595 return error;
1596}
1597
1598asmlinkage int irix_dmi(struct pt_regs *regs)
1599{
1600 printk("[%s:%d] Wheee.. irix_dmi()\n",
1601 current->comm, current->pid);
1602
1603 return -EINVAL;
1604}
1605
1606asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
1607 int off1, int off2)
1608{
1609 printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
1610 current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1611
1612 return -EINVAL;
1613}
1614
1615asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
1616 int off1, int off2)
1617{
1618 printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
1619 current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1620
1621 return -EINVAL;
1622}
1623
1624asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
1625 unsigned long arg2, unsigned long arg3,
1626 unsigned long arg4, unsigned long arg5)
1627{
1628 printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
1629 "%08lx,%08lx)\n",
1630 current->comm, current->pid, cmd, arg0, arg1, arg2,
1631 arg3, arg4, arg5);
1632
1633 return -EINVAL;
1634}
1635
1636struct irix_statvfs64 {
1637 u32 f_bsize; u32 f_frsize;
1638 u64 f_blocks; u64 f_bfree; u64 f_bavail;
1639 u64 f_files; u64 f_ffree; u64 f_favail;
1640 u32 f_fsid;
1641 char f_basetype[16];
1642 u32 f_flag; u32 f_namemax;
1643 char f_fstr[32];
1644 u32 f_filler[16];
1645};
1646
1647asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
1648{
1649 struct nameidata nd;
1650 struct kstatfs kbuf;
1651 int error, i;
1652
1653 printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
1654 current->comm, current->pid, fname, buf);
1655 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
1656 error = -EFAULT;
1657 goto out;
1658 }
1659 error = user_path_walk(fname, &nd);
1660 if (error)
1661 goto out;
1662 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1663 if (error)
1664 goto dput_and_out;
1665
1666 __put_user(kbuf.f_bsize, &buf->f_bsize);
1667 __put_user(kbuf.f_frsize, &buf->f_frsize);
1668 __put_user(kbuf.f_blocks, &buf->f_blocks);
1669 __put_user(kbuf.f_bfree, &buf->f_bfree);
1670 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1671 __put_user(kbuf.f_files, &buf->f_files);
1672 __put_user(kbuf.f_ffree, &buf->f_ffree);
1673 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1674#ifdef __MIPSEB__
1675 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1676#else
1677 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1678#endif
1679 for(i = 0; i < 16; i++)
1680 __put_user(0, &buf->f_basetype[i]);
1681 __put_user(0, &buf->f_flag);
1682 __put_user(kbuf.f_namelen, &buf->f_namemax);
1683 for(i = 0; i < 32; i++)
1684 __put_user(0, &buf->f_fstr[i]);
1685
1686 error = 0;
1687
1688dput_and_out:
1689 path_release(&nd);
1690out:
1691 return error;
1692}
1693
1694asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
1695{
1696 struct kstatfs kbuf;
1697 struct file *file;
1698 int error, i;
1699
1700 printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
1701 current->comm, current->pid, fd, buf);
1702
1703 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1704 error = -EFAULT;
1705 goto out;
1706 }
1707 if (!(file = fget(fd))) {
1708 error = -EBADF;
1709 goto out;
1710 }
1711 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1712 if (error)
1713 goto out_f;
1714
1715 __put_user(kbuf.f_bsize, &buf->f_bsize);
1716 __put_user(kbuf.f_frsize, &buf->f_frsize);
1717 __put_user(kbuf.f_blocks, &buf->f_blocks);
1718 __put_user(kbuf.f_bfree, &buf->f_bfree);
1719 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1720 __put_user(kbuf.f_files, &buf->f_files);
1721 __put_user(kbuf.f_ffree, &buf->f_ffree);
1722 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1723#ifdef __MIPSEB__
1724 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1725#else
1726 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1727#endif
1728 for(i = 0; i < 16; i++)
1729 __put_user(0, &buf->f_basetype[i]);
1730 __put_user(0, &buf->f_flag);
1731 __put_user(kbuf.f_namelen, &buf->f_namemax);
1732 __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
1733
1734out_f:
1735 fput(file);
1736out:
1737 return error;
1738}
1739
1740asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
1741{
1742 int err = 0;
1743
1744 printk("[%s:%d] irix_getmountid(%s, %p)\n",
1745 current->comm, current->pid, fname, midbuf);
1746 if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
1747 return -EFAULT;
1748
1749 /*
1750 * The idea with this system call is that when trying to determine
1751 * 'pwd' and it's a toss-up for some reason, userland can use the
1752 * fsid of the filesystem to try and make the right decision, but
1753 * we don't have this so for now. XXX
1754 */
1755 err |= __put_user(0, &midbuf[0]);
1756 err |= __put_user(0, &midbuf[1]);
1757 err |= __put_user(0, &midbuf[2]);
1758 err |= __put_user(0, &midbuf[3]);
1759
1760 return err;
1761}
1762
1763asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
1764 unsigned long arg, unsigned long sp, int slen)
1765{
1766 printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
1767 current->comm, current->pid, entry, mask, arg, sp, slen);
1768
1769 return -EINVAL;
1770}
1771
1772#undef DEBUG_GETDENTS
1773
1774struct irix_dirent32 {
1775 u32 d_ino;
1776 u32 d_off;
1777 unsigned short d_reclen;
1778 char d_name[1];
1779};
1780
1781struct irix_dirent32_callback {
1782 struct irix_dirent32 *current_dir;
1783 struct irix_dirent32 *previous;
1784 int count;
1785 int error;
1786};
1787
1788#define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
1789#define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
1790
1791static int irix_filldir32(void *__buf, const char *name, int namlen,
1792 loff_t offset, ino_t ino, unsigned int d_type)
1793{
1794 struct irix_dirent32 *dirent;
1795 struct irix_dirent32_callback *buf =
1796 (struct irix_dirent32_callback *)__buf;
1797 unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
1798
1799#ifdef DEBUG_GETDENTS
1800 printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
1801 reclen, namlen, buf->count);
1802#endif
1803 buf->error = -EINVAL; /* only used if we fail.. */
1804 if (reclen > buf->count)
1805 return -EINVAL;
1806 dirent = buf->previous;
1807 if (dirent)
1808 __put_user(offset, &dirent->d_off);
1809 dirent = buf->current_dir;
1810 buf->previous = dirent;
1811 __put_user(ino, &dirent->d_ino);
1812 __put_user(reclen, &dirent->d_reclen);
1813 copy_to_user(dirent->d_name, name, namlen);
1814 __put_user(0, &dirent->d_name[namlen]);
1815 ((char *) dirent) += reclen;
1816 buf->current_dir = dirent;
1817 buf->count -= reclen;
1818
1819 return 0;
1820}
1821
1822asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
1823 unsigned int count, int *eob)
1824{
1825 struct file *file;
1826 struct irix_dirent32 *lastdirent;
1827 struct irix_dirent32_callback buf;
1828 int error;
1829
1830#ifdef DEBUG_GETDENTS
1831 printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
1832 current->pid, fd, dirent, count, eob);
1833#endif
1834 error = -EBADF;
1835 file = fget(fd);
1836 if (!file)
1837 goto out;
1838
1839 buf.current_dir = (struct irix_dirent32 *) dirent;
1840 buf.previous = NULL;
1841 buf.count = count;
1842 buf.error = 0;
1843
1844 error = vfs_readdir(file, irix_filldir32, &buf);
1845 if (error < 0)
1846 goto out_putf;
1847
1848 error = buf.error;
1849 lastdirent = buf.previous;
1850 if (lastdirent) {
1851 put_user(file->f_pos, &lastdirent->d_off);
1852 error = count - buf.count;
1853 }
1854
1855 if (put_user(0, eob) < 0) {
1856 error = -EFAULT;
1857 goto out_putf;
1858 }
1859
1860#ifdef DEBUG_GETDENTS
1861 printk("eob=%d returning %d\n", *eob, count - buf.count);
1862#endif
1863 error = count - buf.count;
1864
1865out_putf:
1866 fput(file);
1867out:
1868 return error;
1869}
1870
1871struct irix_dirent64 {
1872 u64 d_ino;
1873 u64 d_off;
1874 unsigned short d_reclen;
1875 char d_name[1];
1876};
1877
1878struct irix_dirent64_callback {
1879 struct irix_dirent64 *curr;
1880 struct irix_dirent64 *previous;
1881 int count;
1882 int error;
1883};
1884
1885#define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
1886#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
1887
1888static int irix_filldir64(void * __buf, const char * name, int namlen,
1889 loff_t offset, ino_t ino, unsigned int d_type)
1890{
1891 struct irix_dirent64 *dirent;
1892 struct irix_dirent64_callback * buf =
1893 (struct irix_dirent64_callback *) __buf;
1894 unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
1895
1896 buf->error = -EINVAL; /* only used if we fail.. */
1897 if (reclen > buf->count)
1898 return -EINVAL;
1899 dirent = buf->previous;
1900 if (dirent)
1901 __put_user(offset, &dirent->d_off);
1902 dirent = buf->curr;
1903 buf->previous = dirent;
1904 __put_user(ino, &dirent->d_ino);
1905 __put_user(reclen, &dirent->d_reclen);
1906 __copy_to_user(dirent->d_name, name, namlen);
1907 __put_user(0, &dirent->d_name[namlen]);
1908 ((char *) dirent) += reclen;
1909 buf->curr = dirent;
1910 buf->count -= reclen;
1911
1912 return 0;
1913}
1914
1915asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
1916{
1917 struct file *file;
1918 struct irix_dirent64 *lastdirent;
1919 struct irix_dirent64_callback buf;
1920 int error;
1921
1922#ifdef DEBUG_GETDENTS
1923 printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
1924 current->pid, fd, dirent, cnt);
1925#endif
1926 error = -EBADF;
1927 if (!(file = fget(fd)))
1928 goto out;
1929
1930 error = -EFAULT;
1931 if (!access_ok(VERIFY_WRITE, dirent, cnt))
1932 goto out_f;
1933
1934 error = -EINVAL;
1935 if (cnt < (sizeof(struct irix_dirent64) + 255))
1936 goto out_f;
1937
1938 buf.curr = (struct irix_dirent64 *) dirent;
1939 buf.previous = NULL;
1940 buf.count = cnt;
1941 buf.error = 0;
1942 error = vfs_readdir(file, irix_filldir64, &buf);
1943 if (error < 0)
1944 goto out_f;
1945 lastdirent = buf.previous;
1946 if (!lastdirent) {
1947 error = buf.error;
1948 goto out_f;
1949 }
1950 lastdirent->d_off = (u64) file->f_pos;
1951#ifdef DEBUG_GETDENTS
1952 printk("returning %d\n", cnt - buf.count);
1953#endif
1954 error = cnt - buf.count;
1955
1956out_f:
1957 fput(file);
1958out:
1959 return error;
1960}
1961
1962asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
1963{
1964 struct file *file;
1965 struct irix_dirent64 *lastdirent;
1966 struct irix_dirent64_callback buf;
1967 int error;
1968
1969#ifdef DEBUG_GETDENTS
1970 printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
1971 current->pid, fd, dirent, cnt);
1972#endif
1973 error = -EBADF;
1974 if (!(file = fget(fd)))
1975 goto out;
1976
1977 error = -EFAULT;
1978 if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
1979 !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
1980 goto out_f;
1981
1982 error = -EINVAL;
1983 if (cnt < (sizeof(struct irix_dirent64) + 255))
1984 goto out_f;
1985
1986 *eob = 0;
1987 buf.curr = (struct irix_dirent64 *) dirent;
1988 buf.previous = NULL;
1989 buf.count = cnt;
1990 buf.error = 0;
1991 error = vfs_readdir(file, irix_filldir64, &buf);
1992 if (error < 0)
1993 goto out_f;
1994 lastdirent = buf.previous;
1995 if (!lastdirent) {
1996 error = buf.error;
1997 goto out_f;
1998 }
1999 lastdirent->d_off = (u64) file->f_pos;
2000#ifdef DEBUG_GETDENTS
2001 printk("eob=%d returning %d\n", *eob, cnt - buf.count);
2002#endif
2003 error = cnt - buf.count;
2004
2005out_f:
2006 fput(file);
2007out:
2008 return error;
2009}
2010
2011asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
2012{
2013 int retval;
2014
2015 switch (op) {
2016 case 1:
2017 /* Reboot */
2018 printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
2019 current->comm, current->pid);
2020 retval = -EINVAL;
2021 goto out;
2022
2023 case 2:
2024 /* Shutdown */
2025 printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
2026 current->comm, current->pid);
2027 retval = -EINVAL;
2028 goto out;
2029
2030 case 4:
2031 /* Remount-root */
2032 printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
2033 current->comm, current->pid);
2034 retval = -EINVAL;
2035 goto out;
2036
2037 case 8:
2038 /* Kill all tasks. */
2039 printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
2040 current->comm, current->pid);
2041 retval = -EINVAL;
2042 goto out;
2043
2044 case 256:
2045 /* Set magic mushrooms... */
2046 printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
2047 current->comm, current->pid, (int) func);
2048 retval = -EINVAL;
2049 goto out;
2050
2051 default:
2052 printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
2053 current->comm, current->pid, (int) op);
2054 retval = -EINVAL;
2055 goto out;
2056 };
2057
2058out:
2059 return retval;
2060}
2061
2062asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
2063{
2064 int retval;
2065
2066 switch(type) {
2067 case 0:
2068 /* uname() */
2069 retval = irix_uname((struct iuname *)inbuf);
2070 goto out;
2071
2072 case 2:
2073 /* ustat() */
2074 printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
2075 current->comm, current->pid);
2076 retval = -EINVAL;
2077 goto out;
2078
2079 case 3:
2080 /* fusers() */
2081 printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
2082 current->comm, current->pid);
2083 retval = -EINVAL;
2084 goto out;
2085
2086 default:
2087 printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
2088 current->comm, current->pid, (int) type);
2089 retval = -EINVAL;
2090 goto out;
2091 }
2092
2093out:
2094 return retval;
2095}
2096
2097#undef DEBUG_FCNTL
2098
2099#define IRIX_F_ALLOCSP 10
2100
2101asmlinkage int irix_fcntl(int fd, int cmd, int arg)
2102{
2103 int retval;
2104
2105#ifdef DEBUG_FCNTL
2106 printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
2107 current->pid, fd, cmd, arg);
2108#endif
2109 if (cmd == IRIX_F_ALLOCSP){
2110 return 0;
2111 }
2112 retval = sys_fcntl(fd, cmd, arg);
2113#ifdef DEBUG_FCNTL
2114 printk("%d\n", retval);
2115#endif
2116 return retval;
2117}
2118
2119asmlinkage int irix_ulimit(int cmd, int arg)
2120{
2121 int retval;
2122
2123 switch(cmd) {
2124 case 1:
2125 printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
2126 current->comm, current->pid);
2127 retval = -EINVAL;
2128 goto out;
2129
2130 case 2:
2131 printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
2132 current->comm, current->pid);
2133 retval = -EINVAL;
2134 goto out;
2135
2136 case 3:
2137 printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
2138 current->comm, current->pid);
2139 retval = -EINVAL;
2140 goto out;
2141
2142 case 4:
2143#if 0
2144 printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
2145 current->comm, current->pid);
2146 retval = -EINVAL;
2147 goto out;
2148#endif
2149 retval = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
2150 goto out;
2151
2152 case 5:
2153 printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
2154 current->comm, current->pid);
2155 retval = -EINVAL;
2156 goto out;
2157
2158 default:
2159 printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
2160 current->comm, current->pid, cmd);
2161 retval = -EINVAL;
2162 goto out;
2163 }
2164out:
2165 return retval;
2166}
2167
2168asmlinkage int irix_unimp(struct pt_regs *regs)
2169{
2170 printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
2171 "a3=%08lx\n", current->comm, current->pid,
2172 (int) regs->regs[2], (int) regs->regs[3],
2173 regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
2174
2175 return -ENOSYS;
2176}
Linux kernel - Deliverables
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