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[PATCH] docbook: fix segfault in docproc.c
[mirror_ubuntu-zesty-kernel.git] / arch / sparc64 / solaris / misc.c
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1da177e4
LT		 1/* $Id: misc.c,v 1.36 2002/02/09 19:49:31 davem Exp $
2 * misc.c: Miscellaneous syscall emulation for Solaris
3 *
4 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
5 */
6
1da177e4
LT		 7#include <linux/module.h>
8#include <linux/types.h>
9#include <linux/smp_lock.h>
10#include <linux/utsname.h>
11#include <linux/limits.h>
12#include <linux/mm.h>
13#include <linux/smp.h>
14#include <linux/mman.h>
15#include <linux/file.h>
16#include <linux/timex.h>
17#include <linux/major.h>
18#include <linux/compat.h>
19
20#include <asm/uaccess.h>
21#include <asm/string.h>
22#include <asm/oplib.h>
23#include <asm/idprom.h>
24#include <asm/smp.h>
25c7581b 25#include <asm/prom.h>
1da177e4
LT		 26
27#include "conv.h"
28
29/* Conversion from Linux to Solaris errnos. 0-34 are identity mapped.
30 Some Linux errnos (EPROCLIM, EDOTDOT, ERREMOTE, EUCLEAN, ENOTNAM,
31 ENAVAIL, EISNAM, EREMOTEIO, ENOMEDIUM, EMEDIUMTYPE) have no Solaris
32 equivalents. I return EINVAL in that case, which is very wrong. If
33 someone suggest a better value for them, you're welcomed.
34 On the other side, Solaris ECANCELED and ENOTSUP have no Linux equivalents,
35 but that doesn't matter here. --jj */
36int solaris_err_table[] = {
37/* 0 */ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
38/* 10 */ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
39/* 20 */ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
40/* 30 */ 30, 31, 32, 33, 34, 22, 150, 149, 95, 96,
41/* 40 */ 97, 98, 99, 120, 121, 122, 123, 124, 125, 126,
42/* 50 */ 127, 128, 129, 130, 131, 132, 133, 134, 143, 144,
43/* 60 */ 145, 146, 90, 78, 147, 148, 93, 22, 94, 49,
44/* 70 */ 151, 66, 60, 62, 63, 35, 77, 36, 45, 46,
45/* 80 */ 64, 22, 67, 68, 69, 70, 71, 74, 22, 82,
46/* 90 */ 89, 92, 79, 81, 37, 38, 39, 40, 41, 42,
47/* 100 */ 43, 44, 50, 51, 52, 53, 54, 55, 56, 57,
48/* 110 */ 87, 61, 84, 65, 83, 80, 91, 22, 22, 22,
49/* 120 */ 22, 22, 88, 86, 85, 22, 22,
50};
51
52#define SOLARIS_NR_OPEN 256
53
54static u32 do_solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u64 off)
55{
56 struct file *file = NULL;
57 unsigned long retval, ret_type;
58
59 /* Do we need it here? */
60 set_personality(PER_SVR4);
61 if (flags & MAP_NORESERVE) {
62 static int cnt;
63
64 if (cnt < 5) {
65 printk("%s: unimplemented Solaris MAP_NORESERVE mmap() flag\n",
66 current->comm);
67 cnt++;
68 }
69 flags &= ~MAP_NORESERVE;
70 }
71 retval = -EBADF;
72 if(!(flags & MAP_ANONYMOUS)) {
73 if(fd >= SOLARIS_NR_OPEN)
74 goto out;
75 file = fget(fd);
76 if (!file)
77 goto out;
78 else {
79 struct inode * inode = file->f_dentry->d_inode;
80 if(imajor(inode) == MEM_MAJOR &&
81 iminor(inode) == 5) {
82 flags |= MAP_ANONYMOUS;
83 fput(file);
84 file = NULL;
85 }
86 }
87 }
88
89 retval = -EINVAL;
90 len = PAGE_ALIGN(len);
91 if(!(flags & MAP_FIXED))
92 addr = 0;
d61e16df 93 else if (len > STACK_TOP32 || addr > STACK_TOP32 - len)
1da177e4
LT		 94 goto out_putf;
95 ret_type = flags & _MAP_NEW;
96 flags &= ~_MAP_NEW;
97
98 down_write(&current->mm->mmap_sem);
99 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
100 retval = do_mmap(file,
101 (unsigned long) addr, (unsigned long) len,
102 (unsigned long) prot, (unsigned long) flags, off);
103 up_write(&current->mm->mmap_sem);
104 if(!ret_type)
d61e16df 105 retval = ((retval < STACK_TOP32) ? 0 : retval);
1da177e4
LT		 106
107out_putf:
108 if (file)
109 fput(file);
110out:
111 return (u32) retval;
112}
113
114asmlinkage u32 solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 off)
115{
116 return do_solaris_mmap(addr, len, prot, flags, fd, (u64) off);
117}
118
119asmlinkage u32 solaris_mmap64(struct pt_regs *regs, u32 len, u32 prot, u32 flags, u32 fd, u32 offhi)
120{
121 u32 offlo;
122
123 if (regs->u_regs[UREG_G1]) {
124 if (get_user (offlo, (u32 __user *)(long)((u32)regs->u_regs[UREG_I6] + 0x5c)))
125 return -EFAULT;
126 } else {
127 if (get_user (offlo, (u32 __user *)(long)((u32)regs->u_regs[UREG_I6] + 0x60)))
128 return -EFAULT;
129 }
130 return do_solaris_mmap((u32)regs->u_regs[UREG_I0], len, prot, flags, fd, (((u64)offhi)<<32)|offlo);
131}
132
133asmlinkage int solaris_brk(u32 brk)
134{
135 int (*sunos_brk)(u32) = (int (*)(u32))SUNOS(17);
136
137 return sunos_brk(brk);
138}
139
140static int __set_utsfield(char __user *to, int to_size,
141 const char *from, int from_size,
142 int dotchop, int countfrom)
143{
144 int len = countfrom ? (to_size > from_size ?
145 from_size : to_size) : to_size;
146 int off;
147
148 if (copy_to_user(to, from, len))
149 return -EFAULT;
150
151 off = len < to_size? len: len - 1;
152 if (dotchop) {
153 const char *p = strnchr(from, len, '.');
154 if (p) off = p - from;
155 }
156
157 if (__put_user('\0', to + off))
158 return -EFAULT;
159
160 return 0;
161}
162
163#define set_utsfield(to, from, dotchop, countfrom) \
164 __set_utsfield((to), sizeof(to), \
165 (from), sizeof(from), \
166 (dotchop), (countfrom))
167
168struct sol_uname {
169 char sysname[9];
170 char nodename[9];
171 char release[9];
172 char version[9];
173 char machine[9];
174};
175
176struct sol_utsname {
177 char sysname[257];
178 char nodename[257];
179 char release[257];
180 char version[257];
181 char machine[257];
182};
183
184static char *machine(void)
185{
186 switch (sparc_cpu_model) {
187 case sun4: return "sun4";
188 case sun4c: return "sun4c";
189 case sun4e: return "sun4e";
190 case sun4m: return "sun4m";
191 case sun4d: return "sun4d";
192 case sun4u: return "sun4u";
193 default: return "sparc";
194 }
195}
196
25c7581b 197static char *platform(char *buffer, int sz)
1da177e4 198{
25c7581b 199 struct device_node *dp = of_find_node_by_path("/");
1da177e4
LT		 200 int len;
201
202 *buffer = 0;
25c7581b
DM		 203 len = strlen(dp->name);
204 if (len > sz)
205 len = sz;
206 memcpy(buffer, dp->name, len);
207 buffer[len] = 0;
1da177e4
LT		 208 if (*buffer) {
209 char *p;
210
211 for (p = buffer; *p; p++)
212 if (*p == '/' || *p == ' ') *p = '_';
213 return buffer;
214 }
215
216 return "sun4u";
217}
218
25c7581b 219static char *serial(char *buffer, int sz)
1da177e4 220{
25c7581b 221 struct device_node *dp = of_find_node_by_path("/options");
1da177e4
LT		 222 int len;
223
1da177e4 224 *buffer = 0;
25c7581b
DM		 225 if (dp) {
226 char *val = of_get_property(dp, "system-board-serial#", &len);
227
228 if (val && len > 0) {
229 if (len > sz)
230 len = sz;
231 memcpy(buffer, val, len);
232 buffer[len] = 0;
233 }
234 }
1da177e4
LT		 235 if (!*buffer)
236 return "4512348717234";
237 else
238 return buffer;
239}
240
241asmlinkage int solaris_utssys(u32 buf, u32 flags, int which, u32 buf2)
242{
243 struct sol_uname __user *v = A(buf);
244 int err;
245
246 switch (which) {
247 case 0: /* old uname */
248 /* Let's cheat */
249 err = set_utsfield(v->sysname, "SunOS", 1, 0);
250 down_read(&uts_sem);
251 err |= set_utsfield(v->nodename, system_utsname.nodename,
252 1, 1);
253 up_read(&uts_sem);
254 err |= set_utsfield(v->release, "2.6", 0, 0);
255 err |= set_utsfield(v->version, "Generic", 0, 0);
256 err |= set_utsfield(v->machine, machine(), 0, 0);
257 return (err ? -EFAULT : 0);
258 case 2: /* ustat */
259 return -ENOSYS;
260 case 3: /* fusers */
261 return -ENOSYS;
262 default:
263 return -ENOSYS;
264 }
265}
266
267asmlinkage int solaris_utsname(u32 buf)
268{
269 struct sol_utsname __user *v = A(buf);
270 int err;
271
272 /* Why should we not lie a bit? */
273 down_read(&uts_sem);
274 err = set_utsfield(v->sysname, "SunOS", 0, 0);
275 err |= set_utsfield(v->nodename, system_utsname.nodename, 1, 1);
276 err |= set_utsfield(v->release, "5.6", 0, 0);
277 err |= set_utsfield(v->version, "Generic", 0, 0);
278 err |= set_utsfield(v->machine, machine(), 0, 0);
279 up_read(&uts_sem);
280
281 return (err ? -EFAULT : 0);
282}
283
284#define SI_SYSNAME 1 /* return name of operating system */
285#define SI_HOSTNAME 2 /* return name of node */
286#define SI_RELEASE 3 /* return release of operating system */
287#define SI_VERSION 4 /* return version field of utsname */
288#define SI_MACHINE 5 /* return kind of machine */
289#define SI_ARCHITECTURE 6 /* return instruction set arch */
290#define SI_HW_SERIAL 7 /* return hardware serial number */
291#define SI_HW_PROVIDER 8 /* return hardware manufacturer */
292#define SI_SRPC_DOMAIN 9 /* return secure RPC domain */
293#define SI_PLATFORM 513 /* return platform identifier */
294
295asmlinkage int solaris_sysinfo(int cmd, u32 buf, s32 count)
296{
297 char *p, *q, *r;
298 char buffer[256];
299 int len;
300
301 /* Again, we cheat :)) */
302 switch (cmd) {
303 case SI_SYSNAME: r = "SunOS"; break;
304 case SI_HOSTNAME:
305 r = buffer + 256;
306 down_read(&uts_sem);
307 for (p = system_utsname.nodename, q = buffer;
308 q < r && *p && *p != '.'; *q++ = *p++);
309 up_read(&uts_sem);
310 *q = 0;
311 r = buffer;
312 break;
313 case SI_RELEASE: r = "5.6"; break;
314 case SI_MACHINE: r = machine(); break;
315 case SI_ARCHITECTURE: r = "sparc"; break;
316 case SI_HW_PROVIDER: r = "Sun_Microsystems"; break;
25c7581b
DM		 317 case SI_HW_SERIAL: r = serial(buffer, sizeof(buffer)); break;
318 case SI_PLATFORM: r = platform(buffer, sizeof(buffer)); break;
1da177e4
LT		 319 case SI_SRPC_DOMAIN: r = ""; break;
320 case SI_VERSION: r = "Generic"; break;
321 default: return -EINVAL;
322 }
323 len = strlen(r) + 1;
324 if (count < len) {
325 if (copy_to_user(A(buf), r, count - 1) ||
326 __put_user(0, (char __user *)A(buf) + count - 1))
327 return -EFAULT;
328 } else {
329 if (copy_to_user(A(buf), r, len))
330 return -EFAULT;
331 }
332 return len;
333}
334
335#define SOLARIS_CONFIG_NGROUPS 2
336#define SOLARIS_CONFIG_CHILD_MAX 3
337#define SOLARIS_CONFIG_OPEN_FILES 4
338#define SOLARIS_CONFIG_POSIX_VER 5
339#define SOLARIS_CONFIG_PAGESIZE 6
340#define SOLARIS_CONFIG_CLK_TCK 7
341#define SOLARIS_CONFIG_XOPEN_VER 8
342#define SOLARIS_CONFIG_PROF_TCK 10
343#define SOLARIS_CONFIG_NPROC_CONF 11
344#define SOLARIS_CONFIG_NPROC_ONLN 12
345#define SOLARIS_CONFIG_AIO_LISTIO_MAX 13
346#define SOLARIS_CONFIG_AIO_MAX 14
347#define SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX 15
348#define SOLARIS_CONFIG_DELAYTIMER_MAX 16
349#define SOLARIS_CONFIG_MQ_OPEN_MAX 17
350#define SOLARIS_CONFIG_MQ_PRIO_MAX 18
351#define SOLARIS_CONFIG_RTSIG_MAX 19
352#define SOLARIS_CONFIG_SEM_NSEMS_MAX 20
353#define SOLARIS_CONFIG_SEM_VALUE_MAX 21
354#define SOLARIS_CONFIG_SIGQUEUE_MAX 22
355#define SOLARIS_CONFIG_SIGRT_MIN 23
356#define SOLARIS_CONFIG_SIGRT_MAX 24
357#define SOLARIS_CONFIG_TIMER_MAX 25
358#define SOLARIS_CONFIG_PHYS_PAGES 26
359#define SOLARIS_CONFIG_AVPHYS_PAGES 27
360
361asmlinkage int solaris_sysconf(int id)
362{
363 switch (id) {
364 case SOLARIS_CONFIG_NGROUPS: return NGROUPS_MAX;
597d1f06 365 case SOLARIS_CONFIG_CHILD_MAX: return -1; /* no limit */
1da177e4
LT		 366 case SOLARIS_CONFIG_OPEN_FILES: return OPEN_MAX;
367 case SOLARIS_CONFIG_POSIX_VER: return 199309;
368 case SOLARIS_CONFIG_PAGESIZE: return PAGE_SIZE;
369 case SOLARIS_CONFIG_XOPEN_VER: return 3;
370 case SOLARIS_CONFIG_CLK_TCK:
371 case SOLARIS_CONFIG_PROF_TCK:
372 return sparc64_get_clock_tick(smp_processor_id());
373#ifdef CONFIG_SMP
374 case SOLARIS_CONFIG_NPROC_CONF: return NR_CPUS;
375 case SOLARIS_CONFIG_NPROC_ONLN: return num_online_cpus();
376#else
377 case SOLARIS_CONFIG_NPROC_CONF: return 1;
378 case SOLARIS_CONFIG_NPROC_ONLN: return 1;
379#endif
380 case SOLARIS_CONFIG_SIGRT_MIN: return 37;
381 case SOLARIS_CONFIG_SIGRT_MAX: return 44;
382 case SOLARIS_CONFIG_PHYS_PAGES:
383 case SOLARIS_CONFIG_AVPHYS_PAGES:
384 {
385 struct sysinfo s;
386
387 si_meminfo(&s);
388 if (id == SOLARIS_CONFIG_PHYS_PAGES)
389 return s.totalram >>= PAGE_SHIFT;
390 else
391 return s.freeram >>= PAGE_SHIFT;
392 }
393 /* XXX support these as well -jj */
394 case SOLARIS_CONFIG_AIO_LISTIO_MAX: return -EINVAL;
395 case SOLARIS_CONFIG_AIO_MAX: return -EINVAL;
396 case SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX: return -EINVAL;
397 case SOLARIS_CONFIG_DELAYTIMER_MAX: return -EINVAL;
398 case SOLARIS_CONFIG_MQ_OPEN_MAX: return -EINVAL;
399 case SOLARIS_CONFIG_MQ_PRIO_MAX: return -EINVAL;
400 case SOLARIS_CONFIG_RTSIG_MAX: return -EINVAL;
401 case SOLARIS_CONFIG_SEM_NSEMS_MAX: return -EINVAL;
402 case SOLARIS_CONFIG_SEM_VALUE_MAX: return -EINVAL;
403 case SOLARIS_CONFIG_SIGQUEUE_MAX: return -EINVAL;
404 case SOLARIS_CONFIG_TIMER_MAX: return -EINVAL;
405 default: return -EINVAL;
406 }
407}
408
409asmlinkage int solaris_procids(int cmd, s32 pid, s32 pgid)
410{
411 int ret;
412
413 switch (cmd) {
414 case 0: /* getpgrp */
415 return process_group(current);
416 case 1: /* setpgrp */
417 {
418 int (*sys_setpgid)(pid_t,pid_t) =
419 (int (*)(pid_t,pid_t))SYS(setpgid);
420
421 /* can anyone explain me the difference between
422 Solaris setpgrp and setsid? */
423 ret = sys_setpgid(0, 0);
424 if (ret) return ret;
425 current->signal->tty = NULL;
426 return process_group(current);
427 }
428 case 2: /* getsid */
429 {
430 int (*sys_getsid)(pid_t) = (int (*)(pid_t))SYS(getsid);
431 return sys_getsid(pid);
432 }
433 case 3: /* setsid */
434 {
435 int (*sys_setsid)(void) = (int (*)(void))SYS(setsid);
436 return sys_setsid();
437 }
438 case 4: /* getpgid */
439 {
440 int (*sys_getpgid)(pid_t) = (int (*)(pid_t))SYS(getpgid);
441 return sys_getpgid(pid);
442 }
443 case 5: /* setpgid */
444 {
445 int (*sys_setpgid)(pid_t,pid_t) =
446 (int (*)(pid_t,pid_t))SYS(setpgid);
447 return sys_setpgid(pid,pgid);
448 }
449 }
450 return -EINVAL;
451}
452
453asmlinkage int solaris_gettimeofday(u32 tim)
454{
455 int (*sys_gettimeofday)(struct timeval *, struct timezone *) =
456 (int (*)(struct timeval *, struct timezone *))SYS(gettimeofday);
457
458 return sys_gettimeofday((struct timeval *)(u64)tim, NULL);
459}
460
461#define RLIM_SOL_INFINITY32 0x7fffffff
462#define RLIM_SOL_SAVED_MAX32 0x7ffffffe
463#define RLIM_SOL_SAVED_CUR32 0x7ffffffd
464#define RLIM_SOL_INFINITY ((u64)-3)
465#define RLIM_SOL_SAVED_MAX ((u64)-2)
466#define RLIM_SOL_SAVED_CUR ((u64)-1)
467#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
468#define RLIMIT_SOL_NOFILE 5
469#define RLIMIT_SOL_VMEM 6
470
471struct rlimit32 {
472 u32 rlim_cur;
473 u32 rlim_max;
474};
475
476asmlinkage int solaris_getrlimit(unsigned int resource, struct rlimit32 __user *rlim)
477{
478 struct rlimit r;
479 int ret;
480 mm_segment_t old_fs = get_fs ();
481 int (*sys_getrlimit)(unsigned int, struct rlimit *) =
482 (int (*)(unsigned int, struct rlimit *))SYS(getrlimit);
483
484 if (resource > RLIMIT_SOL_VMEM)
485 return -EINVAL;
486 switch (resource) {
487 case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
488 case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
489 default: break;
490 }
491 set_fs (KERNEL_DS);
492 ret = sys_getrlimit(resource, &r);
493 set_fs (old_fs);
494 if (!ret) {
495 if (r.rlim_cur == RLIM_INFINITY)
496 r.rlim_cur = RLIM_SOL_INFINITY32;
497 else if ((u64)r.rlim_cur > RLIM_SOL_INFINITY32)
498 r.rlim_cur = RLIM_SOL_SAVED_CUR32;
499 if (r.rlim_max == RLIM_INFINITY)
500 r.rlim_max = RLIM_SOL_INFINITY32;
501 else if ((u64)r.rlim_max > RLIM_SOL_INFINITY32)
502 r.rlim_max = RLIM_SOL_SAVED_MAX32;
503 ret = put_user (r.rlim_cur, &rlim->rlim_cur);
504 ret |= __put_user (r.rlim_max, &rlim->rlim_max);
505 }
506 return ret;
507}
508
509asmlinkage int solaris_setrlimit(unsigned int resource, struct rlimit32 __user *rlim)
510{
511 struct rlimit r, rold;
512 int ret;
513 mm_segment_t old_fs = get_fs ();
514 int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
515 (int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
516 int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
517 (int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);
518
519 if (resource > RLIMIT_SOL_VMEM)
520 return -EINVAL;
521 switch (resource) {
522 case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
523 case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
524 default: break;
525 }
526 if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
527 __get_user (r.rlim_max, &rlim->rlim_max))
528 return -EFAULT;
529 set_fs (KERNEL_DS);
530 ret = sys_getrlimit(resource, &rold);
531 if (!ret) {
532 if (r.rlim_cur == RLIM_SOL_INFINITY32)
533 r.rlim_cur = RLIM_INFINITY;
534 else if (r.rlim_cur == RLIM_SOL_SAVED_CUR32)
535 r.rlim_cur = rold.rlim_cur;
536 else if (r.rlim_cur == RLIM_SOL_SAVED_MAX32)
537 r.rlim_cur = rold.rlim_max;
538 if (r.rlim_max == RLIM_SOL_INFINITY32)
539 r.rlim_max = RLIM_INFINITY;
540 else if (r.rlim_max == RLIM_SOL_SAVED_CUR32)
541 r.rlim_max = rold.rlim_cur;
542 else if (r.rlim_max == RLIM_SOL_SAVED_MAX32)
543 r.rlim_max = rold.rlim_max;
544 ret = sys_setrlimit(resource, &r);
545 }
546 set_fs (old_fs);
547 return ret;
548}
549
550asmlinkage int solaris_getrlimit64(unsigned int resource, struct rlimit __user *rlim)
551{
552 struct rlimit r;
553 int ret;
554 mm_segment_t old_fs = get_fs ();
555 int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
556 (int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
557
558 if (resource > RLIMIT_SOL_VMEM)
559 return -EINVAL;
560 switch (resource) {
561 case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
562 case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
563 default: break;
564 }
565 set_fs (KERNEL_DS);
566 ret = sys_getrlimit(resource, &r);
567 set_fs (old_fs);
568 if (!ret) {
569 if (r.rlim_cur == RLIM_INFINITY)
570 r.rlim_cur = RLIM_SOL_INFINITY;
571 if (r.rlim_max == RLIM_INFINITY)
572 r.rlim_max = RLIM_SOL_INFINITY;
573 ret = put_user (r.rlim_cur, &rlim->rlim_cur);
574 ret |= __put_user (r.rlim_max, &rlim->rlim_max);
575 }
576 return ret;
577}
578
579asmlinkage int solaris_setrlimit64(unsigned int resource, struct rlimit __user *rlim)
580{
581 struct rlimit r, rold;
582 int ret;
583 mm_segment_t old_fs = get_fs ();
584 int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
585 (int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
586 int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
587 (int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);
588
589 if (resource > RLIMIT_SOL_VMEM)
590 return -EINVAL;
591 switch (resource) {
592 case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
593 case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
594 default: break;
595 }
596 if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
597 __get_user (r.rlim_max, &rlim->rlim_max))
598 return -EFAULT;
599 set_fs (KERNEL_DS);
600 ret = sys_getrlimit(resource, &rold);
601 if (!ret) {
602 if (r.rlim_cur == RLIM_SOL_INFINITY)
603 r.rlim_cur = RLIM_INFINITY;
604 else if (r.rlim_cur == RLIM_SOL_SAVED_CUR)
605 r.rlim_cur = rold.rlim_cur;
606 else if (r.rlim_cur == RLIM_SOL_SAVED_MAX)
607 r.rlim_cur = rold.rlim_max;
608 if (r.rlim_max == RLIM_SOL_INFINITY)
609 r.rlim_max = RLIM_INFINITY;
610 else if (r.rlim_max == RLIM_SOL_SAVED_CUR)
611 r.rlim_max = rold.rlim_cur;
612 else if (r.rlim_max == RLIM_SOL_SAVED_MAX)
613 r.rlim_max = rold.rlim_max;
614 ret = sys_setrlimit(resource, &r);
615 }
616 set_fs (old_fs);
617 return ret;
618}
619
620struct sol_ntptimeval {
621 struct compat_timeval time;
622 s32 maxerror;
623 s32 esterror;
624};
625
626struct sol_timex {
627 u32 modes;
628 s32 offset;
629 s32 freq;
630 s32 maxerror;
631 s32 esterror;
632 s32 status;
633 s32 constant;
634 s32 precision;
635 s32 tolerance;
636 s32 ppsfreq;
637 s32 jitter;
638 s32 shift;
639 s32 stabil;
640 s32 jitcnt;
641 s32 calcnt;
642 s32 errcnt;
643 s32 stbcnt;
644};
645
646asmlinkage int solaris_ntp_gettime(struct sol_ntptimeval __user *ntp)
647{
648 int (*sys_adjtimex)(struct timex __user *) =
649 (int (*)(struct timex __user *))SYS(adjtimex);
650 struct timex t;
651 int ret;
652 mm_segment_t old_fs = get_fs();
653
654 set_fs(KERNEL_DS);
655 t.modes = 0;
656 ret = sys_adjtimex(&t);
657 set_fs(old_fs);
658 if (ret < 0)
659 return ret;
660 ret = put_user (t.time.tv_sec, &ntp->time.tv_sec);
661 ret |= __put_user (t.time.tv_usec, &ntp->time.tv_usec);
662 ret |= __put_user (t.maxerror, &ntp->maxerror);
663 ret |= __put_user (t.esterror, &ntp->esterror);
664 return ret;
665}
666
667asmlinkage int solaris_ntp_adjtime(struct sol_timex __user *txp)
668{
669 int (*sys_adjtimex)(struct timex __user *) =
670 (int (*)(struct timex __user *))SYS(adjtimex);
671 struct timex t;
672 int ret, err;
673 mm_segment_t old_fs = get_fs();
674
675 ret = get_user (t.modes, &txp->modes);
676 ret |= __get_user (t.offset, &txp->offset);
677 ret |= __get_user (t.freq, &txp->freq);
678 ret |= __get_user (t.maxerror, &txp->maxerror);
679 ret |= __get_user (t.esterror, &txp->esterror);
680 ret |= __get_user (t.status, &txp->status);
681 ret |= __get_user (t.constant, &txp->constant);
682 set_fs(KERNEL_DS);
683 ret = sys_adjtimex(&t);
684 set_fs(old_fs);
685 if (ret < 0)
686 return ret;
687 err = put_user (t.offset, &txp->offset);
688 err |= __put_user (t.freq, &txp->freq);
689 err |= __put_user (t.maxerror, &txp->maxerror);
690 err |= __put_user (t.esterror, &txp->esterror);
691 err |= __put_user (t.status, &txp->status);
692 err |= __put_user (t.constant, &txp->constant);
693 err |= __put_user (t.precision, &txp->precision);
694 err |= __put_user (t.tolerance, &txp->tolerance);
695 err |= __put_user (t.ppsfreq, &txp->ppsfreq);
696 err |= __put_user (t.jitter, &txp->jitter);
697 err |= __put_user (t.shift, &txp->shift);
698 err |= __put_user (t.stabil, &txp->stabil);
699 err |= __put_user (t.jitcnt, &txp->jitcnt);
700 err |= __put_user (t.calcnt, &txp->calcnt);
701 err |= __put_user (t.errcnt, &txp->errcnt);
702 err |= __put_user (t.stbcnt, &txp->stbcnt);
703 if (err)
704 return -EFAULT;
705 return ret;
706}
707
708asmlinkage int do_sol_unimplemented(struct pt_regs *regs)
709{
710 printk ("Unimplemented Solaris syscall %d %08x %08x %08x %08x\n",
711 (int)regs->u_regs[UREG_G1],
712 (int)regs->u_regs[UREG_I0],
713 (int)regs->u_regs[UREG_I1],
714 (int)regs->u_regs[UREG_I2],
715 (int)regs->u_regs[UREG_I3]);
716 return -ENOSYS;
717}
718
719asmlinkage void solaris_register(void)
720{
721 set_personality(PER_SVR4);
722}
723
724extern long solaris_to_linux_signals[], linux_to_solaris_signals[];
725
726struct exec_domain solaris_exec_domain = {
727 .name = "Solaris",
728 .handler = NULL,
729 .pers_low = 1, /* PER_SVR4 personality */
730 .pers_high = 1,
731 .signal_map = solaris_to_linux_signals,
732 .signal_invmap =linux_to_solaris_signals,
733 .module = THIS_MODULE,
734 .next = NULL
735};
736
737extern int init_socksys(void);
738
1da177e4
LT		 739MODULE_AUTHOR("Jakub Jelinek (jj@ultra.linux.cz), Patrik Rak (prak3264@ss1000.ms.mff.cuni.cz)");
740MODULE_DESCRIPTION("Solaris binary emulation module");
741MODULE_LICENSE("GPL");
742
1da177e4
LT		 743extern u32 tl0_solaris[8];
744#define update_ttable(x) \
745 tl0_solaris[3] = (((long)(x) - (long)tl0_solaris - 3) >> 2) | 0x40000000; \
4f07118f
DM		 746 wmb(); \
747 __asm__ __volatile__ ("flush %0" : : "r" (&tl0_solaris[3]))
1da177e4
LT		 748
749extern u32 solaris_sparc_syscall[];
750extern u32 solaris_syscall[];
751extern void cleanup_socksys(void);
752
753extern u32 entry64_personality_patch;
754
a4c0291a 755static int __init solaris_init(void)
1da177e4
LT		 756{
757 int ret;
758
759 SOLDD(("Solaris module at %p\n", solaris_sparc_syscall));
760 register_exec_domain(&solaris_exec_domain);
761 if ((ret = init_socksys())) {
762 unregister_exec_domain(&solaris_exec_domain);
763 return ret;
764 }
765 update_ttable(solaris_sparc_syscall);
766 entry64_personality_patch |=
767 (offsetof(struct task_struct, personality) +
768 (sizeof(unsigned long) - 1));
4f07118f
DM		 769 wmb();
770 __asm__ __volatile__("flush %0"
1da177e4
LT		 771 : : "r" (&entry64_personality_patch));
772 return 0;
773}
774
a4c0291a 775static void __exit solaris_exit(void)
1da177e4
LT		 776{
777 update_ttable(solaris_syscall);
778 cleanup_socksys();
779 unregister_exec_domain(&solaris_exec_domain);
780}
781
a4c0291a
DM		 782module_init(solaris_init);
783module_exit(solaris_exit);
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