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1/* sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
2 *
3 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
4 * Copyright (C) 1997, 2007 David S. Miller (davem@davemloft.net)
5 *
6 * These routines maintain argument size conversion between 32bit and 64bit
7 * environment.
8 */
9
10#include <linux/kernel.h>
11#include <linux/sched.h>
12#include <linux/capability.h>
13#include <linux/fs.h>
14#include <linux/mm.h>
15#include <linux/file.h>
16#include <linux/signal.h>
17#include <linux/resource.h>
18#include <linux/times.h>
19#include <linux/smp.h>
20#include <linux/sem.h>
21#include <linux/msg.h>
22#include <linux/shm.h>
23#include <linux/uio.h>
24#include <linux/nfs_fs.h>
25#include <linux/quota.h>
26#include <linux/module.h>
27#include <linux/poll.h>
28#include <linux/personality.h>
29#include <linux/stat.h>
30#include <linux/filter.h>
31#include <linux/highmem.h>
32#include <linux/highuid.h>
33#include <linux/mman.h>
34#include <linux/ipv6.h>
35#include <linux/in.h>
36#include <linux/icmpv6.h>
37#include <linux/syscalls.h>
38#include <linux/sysctl.h>
39#include <linux/binfmts.h>
40#include <linux/dnotify.h>
41#include <linux/security.h>
42#include <linux/compat.h>
43#include <linux/vfs.h>
44#include <linux/ptrace.h>
45#include <linux/slab.h>
46
47#include <asm/types.h>
48#include <asm/uaccess.h>
49#include <asm/fpumacro.h>
50#include <asm/mmu_context.h>
51#include <asm/compat_signal.h>
52
53#ifdef CONFIG_SYSVIPC
54asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
55{
56 int version;
57
58 version = call >> 16; /* hack for backward compatibility */
59 call &= 0xffff;
60
61 switch (call) {
62 case SEMTIMEDOP:
63 if (fifth)
64 /* sign extend semid */
65 return compat_sys_semtimedop((int)first,
66 compat_ptr(ptr), second,
67 compat_ptr(fifth));
68 /* else fall through for normal semop() */
69 case SEMOP:
70 /* struct sembuf is the same on 32 and 64bit :)) */
71 /* sign extend semid */
72 return sys_semtimedop((int)first, compat_ptr(ptr), second,
73 NULL);
74 case SEMGET:
75 /* sign extend key, nsems */
76 return sys_semget((int)first, (int)second, third);
77 case SEMCTL:
78 /* sign extend semid, semnum */
79 return compat_sys_semctl((int)first, (int)second, third,
80 compat_ptr(ptr));
81
82 case MSGSND:
83 /* sign extend msqid */
84 return compat_sys_msgsnd((int)first, (int)second, third,
85 compat_ptr(ptr));
86 case MSGRCV:
87 /* sign extend msqid, msgtyp */
88 return compat_sys_msgrcv((int)first, second, (int)fifth,
89 third, version, compat_ptr(ptr));
90 case MSGGET:
91 /* sign extend key */
92 return sys_msgget((int)first, second);
93 case MSGCTL:
94 /* sign extend msqid */
95 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
96
97 case SHMAT:
98 /* sign extend shmid */
99 return compat_sys_shmat((int)first, second, third, version,
100 compat_ptr(ptr));
101 case SHMDT:
102 return sys_shmdt(compat_ptr(ptr));
103 case SHMGET:
104 /* sign extend key_t */
105 return sys_shmget((int)first, second, third);
106 case SHMCTL:
107 /* sign extend shmid */
108 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
109
110 default:
111 return -ENOSYS;
112 }
113
114 return -ENOSYS;
115}
116#endif
117
118asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
119{
120 if ((int)high < 0)
121 return -EINVAL;
122 else
123 return sys_truncate(path, (high << 32) | low);
124}
125
126asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
127{
128 if ((int)high < 0)
129 return -EINVAL;
130 else
131 return sys_ftruncate(fd, (high << 32) | low);
132}
133
134static int cp_compat_stat64(struct kstat *stat,
135 struct compat_stat64 __user *statbuf)
136{
137 int err;
138
139 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
140 err |= put_user(stat->ino, &statbuf->st_ino);
141 err |= put_user(stat->mode, &statbuf->st_mode);
142 err |= put_user(stat->nlink, &statbuf->st_nlink);
143 err |= put_user(stat->uid, &statbuf->st_uid);
144 err |= put_user(stat->gid, &statbuf->st_gid);
145 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
146 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
147 err |= put_user(stat->size, &statbuf->st_size);
148 err |= put_user(stat->blksize, &statbuf->st_blksize);
149 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
150 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
151 err |= put_user(stat->blocks, &statbuf->st_blocks);
152 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
153 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
154 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
155 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
156 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
157 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
158 err |= put_user(0, &statbuf->__unused4);
159 err |= put_user(0, &statbuf->__unused5);
160
161 return err;
162}
163
164asmlinkage long compat_sys_stat64(const char __user * filename,
165 struct compat_stat64 __user *statbuf)
166{
167 struct kstat stat;
168 int error = vfs_stat(filename, &stat);
169
170 if (!error)
171 error = cp_compat_stat64(&stat, statbuf);
172 return error;
173}
174
175asmlinkage long compat_sys_lstat64(const char __user * filename,
176 struct compat_stat64 __user *statbuf)
177{
178 struct kstat stat;
179 int error = vfs_lstat(filename, &stat);
180
181 if (!error)
182 error = cp_compat_stat64(&stat, statbuf);
183 return error;
184}
185
186asmlinkage long compat_sys_fstat64(unsigned int fd,
187 struct compat_stat64 __user * statbuf)
188{
189 struct kstat stat;
190 int error = vfs_fstat(fd, &stat);
191
192 if (!error)
193 error = cp_compat_stat64(&stat, statbuf);
194 return error;
195}
196
197asmlinkage long compat_sys_fstatat64(unsigned int dfd,
198 const char __user *filename,
199 struct compat_stat64 __user * statbuf, int flag)
200{
201 struct kstat stat;
202 int error;
203
204 error = vfs_fstatat(dfd, filename, &stat, flag);
205 if (error)
206 return error;
207 return cp_compat_stat64(&stat, statbuf);
208}
209
210asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
211{
212 return sys_sysfs(option, arg1, arg2);
213}
214
215asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
216{
217 struct timespec t;
218 int ret;
219 mm_segment_t old_fs = get_fs ();
220
221 set_fs (KERNEL_DS);
222 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
223 set_fs (old_fs);
224 if (put_compat_timespec(&t, interval))
225 return -EFAULT;
226 return ret;
227}
228
229asmlinkage long compat_sys_rt_sigprocmask(int how,
230 compat_sigset_t __user *set,
231 compat_sigset_t __user *oset,
232 compat_size_t sigsetsize)
233{
234 sigset_t s;
235 compat_sigset_t s32;
236 int ret;
237 mm_segment_t old_fs = get_fs();
238
239 if (set) {
240 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
241 return -EFAULT;
242 switch (_NSIG_WORDS) {
243 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
244 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
245 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
246 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
247 }
248 }
249 set_fs (KERNEL_DS);
250 ret = sys_rt_sigprocmask(how,
251 set ? (sigset_t __user *) &s : NULL,
252 oset ? (sigset_t __user *) &s : NULL,
253 sigsetsize);
254 set_fs (old_fs);
255 if (ret) return ret;
256 if (oset) {
257 switch (_NSIG_WORDS) {
258 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
259 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
260 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
261 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
262 }
263 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
264 return -EFAULT;
265 }
266 return 0;
267}
268
269asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
270 compat_size_t sigsetsize)
271{
272 sigset_t s;
273 compat_sigset_t s32;
274 int ret;
275 mm_segment_t old_fs = get_fs();
276
277 set_fs (KERNEL_DS);
278 ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
279 set_fs (old_fs);
280 if (!ret) {
281 switch (_NSIG_WORDS) {
282 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
283 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
284 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
285 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
286 }
287 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
288 return -EFAULT;
289 }
290 return ret;
291}
292
293asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
294 struct compat_siginfo __user *uinfo)
295{
296 siginfo_t info;
297 int ret;
298 mm_segment_t old_fs = get_fs();
299
300 if (copy_siginfo_from_user32(&info, uinfo))
301 return -EFAULT;
302
303 set_fs (KERNEL_DS);
304 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
305 set_fs (old_fs);
306 return ret;
307}
308
309asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
310 struct old_sigaction32 __user *oact)
311{
312 struct k_sigaction new_ka, old_ka;
313 int ret;
314
315 WARN_ON_ONCE(sig >= 0);
316 sig = -sig;
317
318 if (act) {
319 compat_old_sigset_t mask;
320 u32 u_handler, u_restorer;
321
322 ret = get_user(u_handler, &act->sa_handler);
323 new_ka.sa.sa_handler = compat_ptr(u_handler);
324 ret |= __get_user(u_restorer, &act->sa_restorer);
325 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
326 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
327 ret |= __get_user(mask, &act->sa_mask);
328 if (ret)
329 return ret;
330 new_ka.ka_restorer = NULL;
331 siginitset(&new_ka.sa.sa_mask, mask);
332 }
333
334 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
335
336 if (!ret && oact) {
337 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
338 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
339 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
340 ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
341 }
342
343 return ret;
344}
345
346asmlinkage long compat_sys_rt_sigaction(int sig,
347 struct sigaction32 __user *act,
348 struct sigaction32 __user *oact,
349 void __user *restorer,
350 compat_size_t sigsetsize)
351{
352 struct k_sigaction new_ka, old_ka;
353 int ret;
354 compat_sigset_t set32;
355
356 /* XXX: Don't preclude handling different sized sigset_t's. */
357 if (sigsetsize != sizeof(compat_sigset_t))
358 return -EINVAL;
359
360 if (act) {
361 u32 u_handler, u_restorer;
362
363 new_ka.ka_restorer = restorer;
364 ret = get_user(u_handler, &act->sa_handler);
365 new_ka.sa.sa_handler = compat_ptr(u_handler);
366 ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
367 switch (_NSIG_WORDS) {
368 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
369 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
370 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
371 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
372 }
373 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
374 ret |= __get_user(u_restorer, &act->sa_restorer);
375 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
376 if (ret)
377 return -EFAULT;
378 }
379
380 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
381
382 if (!ret && oact) {
383 switch (_NSIG_WORDS) {
384 case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
385 case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
386 case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
387 case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
388 }
389 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
390 ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
391 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
392 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
393 if (ret)
394 ret = -EFAULT;
395 }
396
397 return ret;
398}
399
400/*
401 * sparc32_execve() executes a new program after the asm stub has set
402 * things up for us. This should basically do what I want it to.
403 */
404asmlinkage long sparc32_execve(struct pt_regs *regs)
405{
406 int error, base = 0;
407 char *filename;
408
409 /* User register window flush is done by entry.S */
410
411 /* Check for indirect call. */
412 if ((u32)regs->u_regs[UREG_G1] == 0)
413 base = 1;
414
415 filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
416 error = PTR_ERR(filename);
417 if (IS_ERR(filename))
418 goto out;
419
420 error = compat_do_execve(filename,
421 compat_ptr(regs->u_regs[base + UREG_I1]),
422 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
423
424 putname(filename);
425
426 if (!error) {
427 fprs_write(0);
428 current_thread_info()->xfsr[0] = 0;
429 current_thread_info()->fpsaved[0] = 0;
430 regs->tstate &= ~TSTATE_PEF;
431 }
432out:
433 return error;
434}
435
436#ifdef CONFIG_MODULES
437
438asmlinkage long sys32_init_module(void __user *umod, u32 len,
439 const char __user *uargs)
440{
441 return sys_init_module(umod, len, uargs);
442}
443
444asmlinkage long sys32_delete_module(const char __user *name_user,
445 unsigned int flags)
446{
447 return sys_delete_module(name_user, flags);
448}
449
450#else /* CONFIG_MODULES */
451
452asmlinkage long sys32_init_module(const char __user *name_user,
453 struct module __user *mod_user)
454{
455 return -ENOSYS;
456}
457
458asmlinkage long sys32_delete_module(const char __user *name_user)
459{
460 return -ENOSYS;
461}
462
463#endif /* CONFIG_MODULES */
464
465asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
466 char __user *ubuf,
467 compat_size_t count,
468 unsigned long poshi,
469 unsigned long poslo)
470{
471 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
472}
473
474asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
475 char __user *ubuf,
476 compat_size_t count,
477 unsigned long poshi,
478 unsigned long poslo)
479{
480 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
481}
482
483asmlinkage long compat_sys_readahead(int fd,
484 unsigned long offhi,
485 unsigned long offlo,
486 compat_size_t count)
487{
488 return sys_readahead(fd, (offhi << 32) | offlo, count);
489}
490
491long compat_sys_fadvise64(int fd,
492 unsigned long offhi,
493 unsigned long offlo,
494 compat_size_t len, int advice)
495{
496 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
497}
498
499long compat_sys_fadvise64_64(int fd,
500 unsigned long offhi, unsigned long offlo,
501 unsigned long lenhi, unsigned long lenlo,
502 int advice)
503{
504 return sys_fadvise64_64(fd,
505 (offhi << 32) | offlo,
506 (lenhi << 32) | lenlo,
507 advice);
508}
509
510asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
511 compat_off_t __user *offset,
512 compat_size_t count)
513{
514 mm_segment_t old_fs = get_fs();
515 int ret;
516 off_t of;
517
518 if (offset && get_user(of, offset))
519 return -EFAULT;
520
521 set_fs(KERNEL_DS);
522 ret = sys_sendfile(out_fd, in_fd,
523 offset ? (off_t __user *) &of : NULL,
524 count);
525 set_fs(old_fs);
526
527 if (offset && put_user(of, offset))
528 return -EFAULT;
529
530 return ret;
531}
532
533asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
534 compat_loff_t __user *offset,
535 compat_size_t count)
536{
537 mm_segment_t old_fs = get_fs();
538 int ret;
539 loff_t lof;
540
541 if (offset && get_user(lof, offset))
542 return -EFAULT;
543
544 set_fs(KERNEL_DS);
545 ret = sys_sendfile64(out_fd, in_fd,
546 offset ? (loff_t __user *) &lof : NULL,
547 count);
548 set_fs(old_fs);
549
550 if (offset && put_user(lof, offset))
551 return -EFAULT;
552
553 return ret;
554}
555
556/* This is just a version for 32-bit applications which does
557 * not force O_LARGEFILE on.
558 */
559
560asmlinkage long sparc32_open(const char __user *filename,
561 int flags, int mode)
562{
563 return do_sys_open(AT_FDCWD, filename, flags, mode);
564}
565
566long sys32_lookup_dcookie(unsigned long cookie_high,
567 unsigned long cookie_low,
568 char __user *buf, size_t len)
569{
570 return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
571 buf, len);
572}
573
574long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
575{
576 return sys_sync_file_range(fd,
577 (off_high << 32) | off_low,
578 (nb_high << 32) | nb_low,
579 flags);
580}
581
582asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
583 u32 lenhi, u32 lenlo)
584{
585 return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
586 ((loff_t)lenhi << 32) | lenlo);
587}
1/* sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
2 *
3 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
4 * Copyright (C) 1997, 2007 David S. Miller (davem@davemloft.net)
5 *
6 * These routines maintain argument size conversion between 32bit and 64bit
7 * environment.
8 */
9
10#include <linux/kernel.h>
11#include <linux/sched.h>
12#include <linux/capability.h>
13#include <linux/fs.h>
14#include <linux/mm.h>
15#include <linux/file.h>
16#include <linux/signal.h>
17#include <linux/resource.h>
18#include <linux/times.h>
19#include <linux/smp.h>
20#include <linux/sem.h>
21#include <linux/msg.h>
22#include <linux/shm.h>
23#include <linux/uio.h>
24#include <linux/nfs_fs.h>
25#include <linux/quota.h>
26#include <linux/poll.h>
27#include <linux/personality.h>
28#include <linux/stat.h>
29#include <linux/filter.h>
30#include <linux/highmem.h>
31#include <linux/highuid.h>
32#include <linux/mman.h>
33#include <linux/ipv6.h>
34#include <linux/in.h>
35#include <linux/icmpv6.h>
36#include <linux/syscalls.h>
37#include <linux/sysctl.h>
38#include <linux/binfmts.h>
39#include <linux/dnotify.h>
40#include <linux/security.h>
41#include <linux/compat.h>
42#include <linux/vfs.h>
43#include <linux/ptrace.h>
44#include <linux/slab.h>
45
46#include <asm/types.h>
47#include <asm/uaccess.h>
48#include <asm/fpumacro.h>
49#include <asm/mmu_context.h>
50#include <asm/compat_signal.h>
51
52#include "systbls.h"
53
54asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
55{
56 if ((int)high < 0)
57 return -EINVAL;
58 else
59 return sys_truncate(path, (high << 32) | low);
60}
61
62asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
63{
64 if ((int)high < 0)
65 return -EINVAL;
66 else
67 return sys_ftruncate(fd, (high << 32) | low);
68}
69
70static int cp_compat_stat64(struct kstat *stat,
71 struct compat_stat64 __user *statbuf)
72{
73 int err;
74
75 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
76 err |= put_user(stat->ino, &statbuf->st_ino);
77 err |= put_user(stat->mode, &statbuf->st_mode);
78 err |= put_user(stat->nlink, &statbuf->st_nlink);
79 err |= put_user(from_kuid_munged(current_user_ns(), stat->uid), &statbuf->st_uid);
80 err |= put_user(from_kgid_munged(current_user_ns(), stat->gid), &statbuf->st_gid);
81 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
82 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
83 err |= put_user(stat->size, &statbuf->st_size);
84 err |= put_user(stat->blksize, &statbuf->st_blksize);
85 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
86 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
87 err |= put_user(stat->blocks, &statbuf->st_blocks);
88 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
89 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
90 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
91 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
92 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
93 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
94 err |= put_user(0, &statbuf->__unused4);
95 err |= put_user(0, &statbuf->__unused5);
96
97 return err;
98}
99
100asmlinkage long compat_sys_stat64(const char __user * filename,
101 struct compat_stat64 __user *statbuf)
102{
103 struct kstat stat;
104 int error = vfs_stat(filename, &stat);
105
106 if (!error)
107 error = cp_compat_stat64(&stat, statbuf);
108 return error;
109}
110
111asmlinkage long compat_sys_lstat64(const char __user * filename,
112 struct compat_stat64 __user *statbuf)
113{
114 struct kstat stat;
115 int error = vfs_lstat(filename, &stat);
116
117 if (!error)
118 error = cp_compat_stat64(&stat, statbuf);
119 return error;
120}
121
122asmlinkage long compat_sys_fstat64(unsigned int fd,
123 struct compat_stat64 __user * statbuf)
124{
125 struct kstat stat;
126 int error = vfs_fstat(fd, &stat);
127
128 if (!error)
129 error = cp_compat_stat64(&stat, statbuf);
130 return error;
131}
132
133asmlinkage long compat_sys_fstatat64(unsigned int dfd,
134 const char __user *filename,
135 struct compat_stat64 __user * statbuf, int flag)
136{
137 struct kstat stat;
138 int error;
139
140 error = vfs_fstatat(dfd, filename, &stat, flag);
141 if (error)
142 return error;
143 return cp_compat_stat64(&stat, statbuf);
144}
145
146COMPAT_SYSCALL_DEFINE3(sparc_sigaction, int, sig,
147 struct compat_old_sigaction __user *,act,
148 struct compat_old_sigaction __user *,oact)
149{
150 WARN_ON_ONCE(sig >= 0);
151 return compat_sys_sigaction(-sig, act, oact);
152}
153
154COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig,
155 struct compat_sigaction __user *,act,
156 struct compat_sigaction __user *,oact,
157 void __user *,restorer,
158 compat_size_t,sigsetsize)
159{
160 struct k_sigaction new_ka, old_ka;
161 int ret;
162 compat_sigset_t set32;
163
164 /* XXX: Don't preclude handling different sized sigset_t's. */
165 if (sigsetsize != sizeof(compat_sigset_t))
166 return -EINVAL;
167
168 if (act) {
169 u32 u_handler, u_restorer;
170
171 new_ka.ka_restorer = restorer;
172 ret = get_user(u_handler, &act->sa_handler);
173 new_ka.sa.sa_handler = compat_ptr(u_handler);
174 ret |= copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
175 sigset_from_compat(&new_ka.sa.sa_mask, &set32);
176 ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags);
177 ret |= get_user(u_restorer, &act->sa_restorer);
178 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
179 if (ret)
180 return -EFAULT;
181 }
182
183 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
184
185 if (!ret && oact) {
186 sigset_to_compat(&set32, &old_ka.sa.sa_mask);
187 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
188 ret |= copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
189 ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags);
190 ret |= put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
191 if (ret)
192 ret = -EFAULT;
193 }
194
195 return ret;
196}
197
198asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
199 char __user *ubuf,
200 compat_size_t count,
201 unsigned long poshi,
202 unsigned long poslo)
203{
204 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
205}
206
207asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
208 char __user *ubuf,
209 compat_size_t count,
210 unsigned long poshi,
211 unsigned long poslo)
212{
213 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
214}
215
216asmlinkage long compat_sys_readahead(int fd,
217 unsigned long offhi,
218 unsigned long offlo,
219 compat_size_t count)
220{
221 return sys_readahead(fd, (offhi << 32) | offlo, count);
222}
223
224long compat_sys_fadvise64(int fd,
225 unsigned long offhi,
226 unsigned long offlo,
227 compat_size_t len, int advice)
228{
229 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
230}
231
232long compat_sys_fadvise64_64(int fd,
233 unsigned long offhi, unsigned long offlo,
234 unsigned long lenhi, unsigned long lenlo,
235 int advice)
236{
237 return sys_fadvise64_64(fd,
238 (offhi << 32) | offlo,
239 (lenhi << 32) | lenlo,
240 advice);
241}
242
243long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, unsigned int flags)
244{
245 return sys_sync_file_range(fd,
246 (off_high << 32) | off_low,
247 (nb_high << 32) | nb_low,
248 flags);
249}
250
251asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
252 u32 lenhi, u32 lenlo)
253{
254 return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
255 ((loff_t)lenhi << 32) | lenlo);
256}