Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls. | |
3 | * | |
4 | * Copyright (C) 2001 IBM | |
5 | * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | |
6 | * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) | |
7 | * | |
8 | * These routines maintain argument size conversion between 32bit and 64bit | |
9 | * environment. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | */ | |
16 | ||
1da177e4 LT |
17 | #include <linux/kernel.h> |
18 | #include <linux/sched.h> | |
19 | #include <linux/fs.h> | |
20 | #include <linux/mm.h> | |
21 | #include <linux/file.h> | |
22 | #include <linux/signal.h> | |
23 | #include <linux/resource.h> | |
24 | #include <linux/times.h> | |
1da177e4 | 25 | #include <linux/smp.h> |
1da177e4 LT |
26 | #include <linux/sem.h> |
27 | #include <linux/msg.h> | |
28 | #include <linux/shm.h> | |
1da177e4 LT |
29 | #include <linux/poll.h> |
30 | #include <linux/personality.h> | |
31 | #include <linux/stat.h> | |
1da177e4 | 32 | #include <linux/mman.h> |
1da177e4 | 33 | #include <linux/in.h> |
1da177e4 LT |
34 | #include <linux/syscalls.h> |
35 | #include <linux/unistd.h> | |
36 | #include <linux/sysctl.h> | |
37 | #include <linux/binfmts.h> | |
1da177e4 LT |
38 | #include <linux/security.h> |
39 | #include <linux/compat.h> | |
40 | #include <linux/ptrace.h> | |
1da177e4 | 41 | #include <linux/elf.h> |
cba4fbbf | 42 | #include <linux/ipc.h> |
5a0e3ad6 | 43 | #include <linux/slab.h> |
1da177e4 | 44 | |
1da177e4 LT |
45 | #include <asm/ptrace.h> |
46 | #include <asm/types.h> | |
1da177e4 LT |
47 | #include <asm/uaccess.h> |
48 | #include <asm/unistd.h> | |
1da177e4 LT |
49 | #include <asm/time.h> |
50 | #include <asm/mmu_context.h> | |
d387899f | 51 | #include <asm/ppc-pci.h> |
369cf4b9 | 52 | #include <asm/syscalls.h> |
1da177e4 | 53 | |
1da177e4 | 54 | |
1da177e4 LT |
55 | asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, |
56 | compat_ulong_t __user *outp, compat_ulong_t __user *exp, | |
57 | compat_uptr_t tvp_x) | |
58 | { | |
59 | /* sign extend n */ | |
60 | return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x)); | |
61 | } | |
62 | ||
1da177e4 LT |
63 | /* Note: it is necessary to treat option as an unsigned int, |
64 | * with the corresponding cast to a signed int to insure that the | |
65 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
66 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
67 | */ | |
b09a4913 | 68 | asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2) |
1da177e4 LT |
69 | { |
70 | return sys_sysfs((int)option, arg1, arg2); | |
71 | } | |
72 | ||
1da177e4 | 73 | #ifdef CONFIG_SYSVIPC |
b09a4913 | 74 | long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, |
1da177e4 LT |
75 | u32 fifth) |
76 | { | |
77 | int version; | |
78 | ||
79 | version = call >> 16; /* hack for backward compatibility */ | |
80 | call &= 0xffff; | |
81 | ||
82 | switch (call) { | |
83 | ||
84 | case SEMTIMEDOP: | |
85 | if (fifth) | |
86 | /* sign extend semid */ | |
87 | return compat_sys_semtimedop((int)first, | |
88 | compat_ptr(ptr), second, | |
89 | compat_ptr(fifth)); | |
90 | /* else fall through for normal semop() */ | |
91 | case SEMOP: | |
92 | /* struct sembuf is the same on 32 and 64bit :)) */ | |
93 | /* sign extend semid */ | |
94 | return sys_semtimedop((int)first, compat_ptr(ptr), second, | |
95 | NULL); | |
96 | case SEMGET: | |
97 | /* sign extend key, nsems */ | |
98 | return sys_semget((int)first, (int)second, third); | |
99 | case SEMCTL: | |
100 | /* sign extend semid, semnum */ | |
101 | return compat_sys_semctl((int)first, (int)second, third, | |
102 | compat_ptr(ptr)); | |
103 | ||
104 | case MSGSND: | |
105 | /* sign extend msqid */ | |
106 | return compat_sys_msgsnd((int)first, (int)second, third, | |
107 | compat_ptr(ptr)); | |
108 | case MSGRCV: | |
109 | /* sign extend msqid, msgtyp */ | |
110 | return compat_sys_msgrcv((int)first, second, (int)fifth, | |
111 | third, version, compat_ptr(ptr)); | |
112 | case MSGGET: | |
113 | /* sign extend key */ | |
114 | return sys_msgget((int)first, second); | |
115 | case MSGCTL: | |
116 | /* sign extend msqid */ | |
117 | return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); | |
118 | ||
119 | case SHMAT: | |
120 | /* sign extend shmid */ | |
121 | return compat_sys_shmat((int)first, second, third, version, | |
122 | compat_ptr(ptr)); | |
123 | case SHMDT: | |
124 | return sys_shmdt(compat_ptr(ptr)); | |
125 | case SHMGET: | |
126 | /* sign extend key_t */ | |
127 | return sys_shmget((int)first, second, third); | |
128 | case SHMCTL: | |
129 | /* sign extend shmid */ | |
130 | return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); | |
131 | ||
132 | default: | |
133 | return -ENOSYS; | |
134 | } | |
135 | ||
136 | return -ENOSYS; | |
137 | } | |
138 | #endif | |
139 | ||
140 | /* Note: it is necessary to treat out_fd and in_fd as unsigned ints, | |
141 | * with the corresponding cast to a signed int to insure that the | |
142 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
143 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
144 | */ | |
b09a4913 | 145 | asmlinkage long compat_sys_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count) |
1da177e4 LT |
146 | { |
147 | mm_segment_t old_fs = get_fs(); | |
148 | int ret; | |
149 | off_t of; | |
150 | off_t __user *up; | |
151 | ||
152 | if (offset && get_user(of, offset)) | |
153 | return -EFAULT; | |
154 | ||
155 | /* The __user pointer cast is valid because of the set_fs() */ | |
156 | set_fs(KERNEL_DS); | |
157 | up = offset ? (off_t __user *) &of : NULL; | |
158 | ret = sys_sendfile((int)out_fd, (int)in_fd, up, count); | |
159 | set_fs(old_fs); | |
160 | ||
161 | if (offset && put_user(of, offset)) | |
162 | return -EFAULT; | |
163 | ||
164 | return ret; | |
165 | } | |
166 | ||
b09a4913 | 167 | asmlinkage int compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count) |
1da177e4 LT |
168 | { |
169 | mm_segment_t old_fs = get_fs(); | |
170 | int ret; | |
171 | loff_t lof; | |
172 | loff_t __user *up; | |
173 | ||
174 | if (offset && get_user(lof, offset)) | |
175 | return -EFAULT; | |
176 | ||
177 | /* The __user pointer cast is valid because of the set_fs() */ | |
178 | set_fs(KERNEL_DS); | |
179 | up = offset ? (loff_t __user *) &lof : NULL; | |
180 | ret = sys_sendfile64(out_fd, in_fd, up, count); | |
181 | set_fs(old_fs); | |
182 | ||
183 | if (offset && put_user(lof, offset)) | |
184 | return -EFAULT; | |
185 | ||
186 | return ret; | |
187 | } | |
188 | ||
b09a4913 | 189 | long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2, |
1da177e4 LT |
190 | unsigned long a3, unsigned long a4, unsigned long a5, |
191 | struct pt_regs *regs) | |
192 | { | |
193 | int error; | |
194 | char * filename; | |
195 | ||
196 | filename = getname((char __user *) a0); | |
197 | error = PTR_ERR(filename); | |
198 | if (IS_ERR(filename)) | |
199 | goto out; | |
200 | flush_fp_to_thread(current); | |
201 | flush_altivec_to_thread(current); | |
202 | ||
203 | error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs); | |
204 | ||
1da177e4 LT |
205 | putname(filename); |
206 | ||
207 | out: | |
208 | return error; | |
209 | } | |
210 | ||
1da177e4 LT |
211 | /* Note: it is necessary to treat option as an unsigned int, |
212 | * with the corresponding cast to a signed int to insure that the | |
213 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
214 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
215 | */ | |
b09a4913 | 216 | asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5) |
1da177e4 LT |
217 | { |
218 | return sys_prctl((int)option, | |
219 | (unsigned long) arg2, | |
220 | (unsigned long) arg3, | |
221 | (unsigned long) arg4, | |
222 | (unsigned long) arg5); | |
223 | } | |
224 | ||
225 | /* Note: it is necessary to treat pid as an unsigned int, | |
226 | * with the corresponding cast to a signed int to insure that the | |
227 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
228 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
229 | */ | |
b09a4913 | 230 | asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval) |
1da177e4 LT |
231 | { |
232 | struct timespec t; | |
233 | int ret; | |
234 | mm_segment_t old_fs = get_fs (); | |
235 | ||
236 | /* The __user pointer cast is valid because of the set_fs() */ | |
237 | set_fs (KERNEL_DS); | |
238 | ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t); | |
239 | set_fs (old_fs); | |
240 | if (put_compat_timespec(&t, interval)) | |
241 | return -EFAULT; | |
242 | return ret; | |
243 | } | |
244 | ||
1da177e4 LT |
245 | /* Note: it is necessary to treat mode as an unsigned int, |
246 | * with the corresponding cast to a signed int to insure that the | |
247 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
248 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
249 | */ | |
b09a4913 | 250 | asmlinkage long compat_sys_access(const char __user * filename, u32 mode) |
1da177e4 LT |
251 | { |
252 | return sys_access(filename, (int)mode); | |
253 | } | |
254 | ||
255 | ||
256 | /* Note: it is necessary to treat mode as an unsigned int, | |
257 | * with the corresponding cast to a signed int to insure that the | |
258 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
259 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
260 | */ | |
b09a4913 | 261 | asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode) |
1da177e4 LT |
262 | { |
263 | return sys_creat(pathname, (int)mode); | |
264 | } | |
265 | ||
266 | ||
267 | /* Note: it is necessary to treat pid and options as unsigned ints, | |
268 | * with the corresponding cast to a signed int to insure that the | |
269 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
270 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
271 | */ | |
b09a4913 | 272 | asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options) |
1da177e4 LT |
273 | { |
274 | return sys_waitpid((int)pid, stat_addr, (int)options); | |
275 | } | |
276 | ||
277 | ||
278 | /* Note: it is necessary to treat gidsetsize as an unsigned int, | |
279 | * with the corresponding cast to a signed int to insure that the | |
280 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
281 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
282 | */ | |
b09a4913 | 283 | asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist) |
1da177e4 LT |
284 | { |
285 | return sys_getgroups((int)gidsetsize, grouplist); | |
286 | } | |
287 | ||
288 | ||
289 | /* Note: it is necessary to treat pid as an unsigned int, | |
290 | * with the corresponding cast to a signed int to insure that the | |
291 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
292 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
293 | */ | |
b09a4913 | 294 | asmlinkage long compat_sys_getpgid(u32 pid) |
1da177e4 LT |
295 | { |
296 | return sys_getpgid((int)pid); | |
297 | } | |
298 | ||
299 | ||
1da177e4 LT |
300 | |
301 | /* Note: it is necessary to treat pid as an unsigned int, | |
302 | * with the corresponding cast to a signed int to insure that the | |
303 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
304 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
305 | */ | |
b09a4913 | 306 | asmlinkage long compat_sys_getsid(u32 pid) |
1da177e4 LT |
307 | { |
308 | return sys_getsid((int)pid); | |
309 | } | |
310 | ||
311 | ||
312 | /* Note: it is necessary to treat pid and sig as unsigned ints, | |
313 | * with the corresponding cast to a signed int to insure that the | |
314 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
315 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
316 | */ | |
b09a4913 | 317 | asmlinkage long compat_sys_kill(u32 pid, u32 sig) |
1da177e4 LT |
318 | { |
319 | return sys_kill((int)pid, (int)sig); | |
320 | } | |
321 | ||
322 | ||
323 | /* Note: it is necessary to treat mode as an unsigned int, | |
324 | * with the corresponding cast to a signed int to insure that the | |
325 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
326 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
327 | */ | |
b09a4913 | 328 | asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode) |
1da177e4 LT |
329 | { |
330 | return sys_mkdir(pathname, (int)mode); | |
331 | } | |
332 | ||
b09a4913 | 333 | long compat_sys_nice(u32 increment) |
1da177e4 LT |
334 | { |
335 | /* sign extend increment */ | |
336 | return sys_nice((int)increment); | |
337 | } | |
338 | ||
339 | off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin) | |
340 | { | |
341 | /* sign extend n */ | |
342 | return sys_lseek(fd, (int)offset, origin); | |
343 | } | |
344 | ||
dd90bbd5 BH |
345 | long compat_sys_truncate(const char __user * path, u32 length) |
346 | { | |
347 | /* sign extend length */ | |
348 | return sys_truncate(path, (int)length); | |
349 | } | |
350 | ||
351 | long compat_sys_ftruncate(int fd, u32 length) | |
352 | { | |
353 | /* sign extend length */ | |
354 | return sys_ftruncate(fd, (int)length); | |
355 | } | |
356 | ||
1da177e4 LT |
357 | /* Note: it is necessary to treat bufsiz as an unsigned int, |
358 | * with the corresponding cast to a signed int to insure that the | |
359 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
360 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
361 | */ | |
b09a4913 | 362 | asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz) |
1da177e4 LT |
363 | { |
364 | return sys_readlink(path, buf, (int)bufsiz); | |
365 | } | |
366 | ||
367 | /* Note: it is necessary to treat option as an unsigned int, | |
368 | * with the corresponding cast to a signed int to insure that the | |
369 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
370 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
371 | */ | |
b09a4913 | 372 | asmlinkage long compat_sys_sched_get_priority_max(u32 policy) |
1da177e4 LT |
373 | { |
374 | return sys_sched_get_priority_max((int)policy); | |
375 | } | |
376 | ||
377 | ||
378 | /* Note: it is necessary to treat policy as an unsigned int, | |
379 | * with the corresponding cast to a signed int to insure that the | |
380 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
381 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
382 | */ | |
b09a4913 | 383 | asmlinkage long compat_sys_sched_get_priority_min(u32 policy) |
1da177e4 LT |
384 | { |
385 | return sys_sched_get_priority_min((int)policy); | |
386 | } | |
387 | ||
388 | ||
389 | /* Note: it is necessary to treat pid as an unsigned int, | |
390 | * with the corresponding cast to a signed int to insure that the | |
391 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
392 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
393 | */ | |
b09a4913 | 394 | asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param) |
1da177e4 LT |
395 | { |
396 | return sys_sched_getparam((int)pid, param); | |
397 | } | |
398 | ||
399 | ||
400 | /* Note: it is necessary to treat pid as an unsigned int, | |
401 | * with the corresponding cast to a signed int to insure that the | |
402 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
403 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
404 | */ | |
b09a4913 | 405 | asmlinkage long compat_sys_sched_getscheduler(u32 pid) |
1da177e4 LT |
406 | { |
407 | return sys_sched_getscheduler((int)pid); | |
408 | } | |
409 | ||
410 | ||
411 | /* Note: it is necessary to treat pid as an unsigned int, | |
412 | * with the corresponding cast to a signed int to insure that the | |
413 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
414 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
415 | */ | |
b09a4913 | 416 | asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param) |
1da177e4 LT |
417 | { |
418 | return sys_sched_setparam((int)pid, param); | |
419 | } | |
420 | ||
421 | ||
422 | /* Note: it is necessary to treat pid and policy as unsigned ints, | |
423 | * with the corresponding cast to a signed int to insure that the | |
424 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
425 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
426 | */ | |
b09a4913 | 427 | asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param) |
1da177e4 LT |
428 | { |
429 | return sys_sched_setscheduler((int)pid, (int)policy, param); | |
430 | } | |
431 | ||
432 | ||
433 | /* Note: it is necessary to treat len as an unsigned int, | |
434 | * with the corresponding cast to a signed int to insure that the | |
435 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
436 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
437 | */ | |
b09a4913 | 438 | asmlinkage long compat_sys_setdomainname(char __user *name, u32 len) |
1da177e4 LT |
439 | { |
440 | return sys_setdomainname(name, (int)len); | |
441 | } | |
442 | ||
443 | ||
444 | /* Note: it is necessary to treat gidsetsize as an unsigned int, | |
445 | * with the corresponding cast to a signed int to insure that the | |
446 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
447 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
448 | */ | |
b09a4913 | 449 | asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist) |
1da177e4 LT |
450 | { |
451 | return sys_setgroups((int)gidsetsize, grouplist); | |
452 | } | |
453 | ||
454 | ||
b09a4913 | 455 | asmlinkage long compat_sys_sethostname(char __user *name, u32 len) |
1da177e4 LT |
456 | { |
457 | /* sign extend len */ | |
458 | return sys_sethostname(name, (int)len); | |
459 | } | |
460 | ||
461 | ||
462 | /* Note: it is necessary to treat pid and pgid as unsigned ints, | |
463 | * with the corresponding cast to a signed int to insure that the | |
464 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
465 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
466 | */ | |
b09a4913 | 467 | asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid) |
1da177e4 LT |
468 | { |
469 | return sys_setpgid((int)pid, (int)pgid); | |
470 | } | |
471 | ||
b09a4913 | 472 | long compat_sys_getpriority(u32 which, u32 who) |
79c2cc7b AB |
473 | { |
474 | /* sign extend which and who */ | |
475 | return sys_getpriority((int)which, (int)who); | |
476 | } | |
1da177e4 | 477 | |
b09a4913 | 478 | long compat_sys_setpriority(u32 which, u32 who, u32 niceval) |
1da177e4 LT |
479 | { |
480 | /* sign extend which, who and niceval */ | |
481 | return sys_setpriority((int)which, (int)who, (int)niceval); | |
482 | } | |
483 | ||
b09a4913 | 484 | long compat_sys_ioprio_get(u32 which, u32 who) |
79c2cc7b AB |
485 | { |
486 | /* sign extend which and who */ | |
487 | return sys_ioprio_get((int)which, (int)who); | |
488 | } | |
489 | ||
b09a4913 | 490 | long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio) |
79c2cc7b AB |
491 | { |
492 | /* sign extend which, who and ioprio */ | |
493 | return sys_ioprio_set((int)which, (int)who, (int)ioprio); | |
494 | } | |
495 | ||
1da177e4 LT |
496 | /* Note: it is necessary to treat newmask as an unsigned int, |
497 | * with the corresponding cast to a signed int to insure that the | |
498 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
499 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
500 | */ | |
b09a4913 | 501 | asmlinkage long compat_sys_ssetmask(u32 newmask) |
1da177e4 LT |
502 | { |
503 | return sys_ssetmask((int) newmask); | |
504 | } | |
505 | ||
b09a4913 | 506 | asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len) |
1da177e4 LT |
507 | { |
508 | /* sign extend len */ | |
509 | return sys_syslog(type, buf, (int)len); | |
510 | } | |
511 | ||
512 | ||
513 | /* Note: it is necessary to treat mask as an unsigned int, | |
514 | * with the corresponding cast to a signed int to insure that the | |
515 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
516 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
517 | */ | |
b09a4913 | 518 | asmlinkage long compat_sys_umask(u32 mask) |
1da177e4 LT |
519 | { |
520 | return sys_umask((int)mask); | |
521 | } | |
522 | ||
b09a4913 | 523 | unsigned long compat_sys_mmap2(unsigned long addr, size_t len, |
1da177e4 LT |
524 | unsigned long prot, unsigned long flags, |
525 | unsigned long fd, unsigned long pgoff) | |
526 | { | |
527 | /* This should remain 12 even if PAGE_SIZE changes */ | |
528 | return sys_mmap(addr, len, prot, flags, fd, pgoff << 12); | |
529 | } | |
530 | ||
b09a4913 | 531 | long compat_sys_tgkill(u32 tgid, u32 pid, int sig) |
1da177e4 LT |
532 | { |
533 | /* sign extend tgid, pid */ | |
534 | return sys_tgkill((int)tgid, (int)pid, sig); | |
535 | } | |
536 | ||
537 | /* | |
538 | * long long munging: | |
539 | * The 32 bit ABI passes long longs in an odd even register pair. | |
540 | */ | |
541 | ||
b09a4913 | 542 | compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, |
1da177e4 LT |
543 | u32 reg6, u32 poshi, u32 poslo) |
544 | { | |
545 | return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
546 | } | |
547 | ||
c7887325 | 548 | compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, |
1da177e4 LT |
549 | u32 reg6, u32 poshi, u32 poslo) |
550 | { | |
551 | return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
552 | } | |
553 | ||
b09a4913 | 554 | compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) |
1da177e4 LT |
555 | { |
556 | return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count); | |
557 | } | |
558 | ||
b09a4913 | 559 | asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4, |
1da177e4 LT |
560 | unsigned long high, unsigned long low) |
561 | { | |
562 | return sys_truncate(path, (high << 32) | low); | |
563 | } | |
564 | ||
97ac7350 AA |
565 | asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo, |
566 | u32 lenhi, u32 lenlo) | |
567 | { | |
568 | return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo, | |
569 | ((loff_t)lenhi << 32) | lenlo); | |
570 | } | |
571 | ||
b09a4913 | 572 | asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, |
1da177e4 LT |
573 | unsigned long low) |
574 | { | |
575 | return sys_ftruncate(fd, (high << 32) | low); | |
576 | } | |
577 | ||
578 | long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf, | |
579 | size_t len) | |
580 | { | |
581 | return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low, | |
582 | buf, len); | |
583 | } | |
584 | ||
585 | long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, | |
586 | size_t len, int advice) | |
587 | { | |
588 | return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len, | |
589 | advice); | |
590 | } | |
591 | ||
b09a4913 | 592 | asmlinkage long compat_sys_add_key(const char __user *_type, |
1da177e4 LT |
593 | const char __user *_description, |
594 | const void __user *_payload, | |
595 | u32 plen, | |
596 | u32 ringid) | |
597 | { | |
598 | return sys_add_key(_type, _description, _payload, plen, ringid); | |
599 | } | |
600 | ||
b09a4913 | 601 | asmlinkage long compat_sys_request_key(const char __user *_type, |
1da177e4 LT |
602 | const char __user *_description, |
603 | const char __user *_callout_info, | |
604 | u32 destringid) | |
605 | { | |
606 | return sys_request_key(_type, _description, _callout_info, destringid); | |
607 | } | |
608 | ||
edd5cd4a DW |
609 | asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags, |
610 | unsigned offset_hi, unsigned offset_lo, | |
611 | unsigned nbytes_hi, unsigned nbytes_lo) | |
612 | { | |
613 | loff_t offset = ((loff_t)offset_hi << 32) | offset_lo; | |
614 | loff_t nbytes = ((loff_t)nbytes_hi << 32) | nbytes_lo; | |
615 | ||
616 | return sys_sync_file_range(fd, offset, nbytes, flags); | |
617 | } | |
bcc30d37 AS |
618 | |
619 | asmlinkage long compat_sys_fanotify_mark(int fanotify_fd, unsigned int flags, | |
620 | unsigned mask_hi, unsigned mask_lo, | |
621 | int dfd, const char __user *pathname) | |
622 | { | |
623 | u64 mask = ((u64)mask_hi << 32) | mask_lo; | |
624 | return sys_fanotify_mark(fanotify_fd, flags, mask, dfd, pathname); | |
625 | } |