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