arch/sparc64/solaris/misc.c

   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
   7 #include <linux/module.h>
   8 #include <linux/types.h>
   9 #include <linux/utsname.h>
  10 #include <linux/limits.h>
  11 #include <linux/mm.h>
  12 #include <linux/smp.h>
  13 #include <linux/tty.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>
  25 #include <asm/prom.h>
  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 */
  36 int 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
  54 static 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_path.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;
  93         else if (len > STACK_TOP32 || addr > STACK_TOP32 - len)
  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)
 105                 retval = ((retval < STACK_TOP32) ? 0 : retval);
 106
 107 out_putf:
 108         if (file)
 109                 fput(file);
 110 out:
 111         return (u32) retval;
 112 }
 113
 114 asmlinkage 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
 119 asmlinkage 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
 133 asmlinkage int solaris_brk(u32 brk)
 134 {
 135         int (*sunos_brk)(u32) = (int (*)(u32))SUNOS(17);
 136
 137         return sunos_brk(brk);
 138 }
 139
 140 static 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
 168 struct sol_uname {
 169         char sysname[9];
 170         char nodename[9];
 171         char release[9];
 172         char version[9];
 173         char machine[9];
 174 };
 175
 176 struct sol_utsname {
 177         char sysname[257];
 178         char nodename[257];
 179         char release[257];
 180         char version[257];
 181         char machine[257];
 182 };
 183
 184 static 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
 197 static char *platform(char *buffer, int sz)
 198 {
 199         struct device_node *dp = of_find_node_by_path("/");
 200         int len;
 201
 202         *buffer = 0;
 203         len = strlen(dp->name);
 204         if (len > sz)
 205                 len = sz;
 206         memcpy(buffer, dp->name, len);
 207         buffer[len] = 0;
 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
 219 static char *serial(char *buffer, int sz)
 220 {
 221         struct device_node *dp = of_find_node_by_path("/options");
 222         int len;
 223
 224         *buffer = 0;
 225         if (dp) {
 226                 const char *val =
 227                         of_get_property(dp, "system-board-serial#", &len);
 228
 229                 if (val && len > 0) {
 230                         if (len > sz)
 231                                 len = sz;
 232                         memcpy(buffer, val, len);
 233                         buffer[len] = 0;
 234                 }
 235         }
 236         if (!*buffer)
 237                 return "4512348717234";
 238         else
 239                 return buffer;
 240 }
 241
 242 asmlinkage int solaris_utssys(u32 buf, u32 flags, int which, u32 buf2)
 243 {
 244         struct sol_uname __user *v = A(buf);
 245         int err;
 246
 247         switch (which) {
 248         case 0: /* old uname */
 249                 /* Let's cheat */
 250                 err  = set_utsfield(v->sysname, "SunOS", 1, 0);
 251                 down_read(&uts_sem);
 252                 err |= set_utsfield(v->nodename, utsname()->nodename,
 253                                     1, 1);
 254                 up_read(&uts_sem);
 255                 err |= set_utsfield(v->release, "2.6", 0, 0);
 256                 err |= set_utsfield(v->version, "Generic", 0, 0);
 257                 err |= set_utsfield(v->machine, machine(), 0, 0);
 258                 return (err ? -EFAULT : 0);
 259         case 2: /* ustat */
 260                 return -ENOSYS;
 261         case 3: /* fusers */
 262                 return -ENOSYS;
 263         default:
 264                 return -ENOSYS;
 265         }
 266 }
 267
 268 asmlinkage int solaris_utsname(u32 buf)
 269 {
 270         struct sol_utsname __user *v = A(buf);
 271         int err;
 272
 273         /* Why should we not lie a bit? */
 274         down_read(&uts_sem);
 275         err  = set_utsfield(v->sysname, "SunOS", 0, 0);
 276         err |= set_utsfield(v->nodename, utsname()->nodename, 1, 1);
 277         err |= set_utsfield(v->release, "5.6", 0, 0);
 278         err |= set_utsfield(v->version, "Generic", 0, 0);
 279         err |= set_utsfield(v->machine, machine(), 0, 0);
 280         up_read(&uts_sem);
 281
 282         return (err ? -EFAULT : 0);
 283 }
 284
 285 #define SI_SYSNAME              1       /* return name of operating system */
 286 #define SI_HOSTNAME             2       /* return name of node */
 287 #define SI_RELEASE              3       /* return release of operating system */
 288 #define SI_VERSION              4       /* return version field of utsname */
 289 #define SI_MACHINE              5       /* return kind of machine */
 290 #define SI_ARCHITECTURE         6       /* return instruction set arch */
 291 #define SI_HW_SERIAL            7       /* return hardware serial number */
 292 #define SI_HW_PROVIDER          8       /* return hardware manufacturer */
 293 #define SI_SRPC_DOMAIN          9       /* return secure RPC domain */
 294 #define SI_PLATFORM             513     /* return platform identifier */
 295
 296 asmlinkage int solaris_sysinfo(int cmd, u32 buf, s32 count)
 297 {
 298         char *p, *q, *r;
 299         char buffer[256];
 300         int len;
 301
 302         /* Again, we cheat :)) */
 303         switch (cmd) {
 304         case SI_SYSNAME: r = "SunOS"; break;
 305         case SI_HOSTNAME:
 306                 r = buffer + 256;
 307                 down_read(&uts_sem);
 308                 for (p = utsname()->nodename, q = buffer;
 309                      q < r && *p && *p != '.'; *q++ = *p++);
 310                 up_read(&uts_sem);
 311                 *q = 0;
 312                 r = buffer;
 313                 break;
 314         case SI_RELEASE: r = "5.6"; break;
 315         case SI_MACHINE: r = machine(); break;
 316         case SI_ARCHITECTURE: r = "sparc"; break;
 317         case SI_HW_PROVIDER: r = "Sun_Microsystems"; break;
 318         case SI_HW_SERIAL: r = serial(buffer, sizeof(buffer)); break;
 319         case SI_PLATFORM: r = platform(buffer, sizeof(buffer)); break;
 320         case SI_SRPC_DOMAIN: r = ""; break;
 321         case SI_VERSION: r = "Generic"; break;
 322         default: return -EINVAL;
 323         }
 324         len = strlen(r) + 1;
 325         if (count < len) {
 326                 if (copy_to_user(A(buf), r, count - 1) ||
 327                     __put_user(0, (char __user *)A(buf) + count - 1))
 328                         return -EFAULT;
 329         } else {
 330                 if (copy_to_user(A(buf), r, len))
 331                         return -EFAULT;
 332         }
 333         return len;
 334 }
 335
 336 #define SOLARIS_CONFIG_NGROUPS                  2
 337 #define SOLARIS_CONFIG_CHILD_MAX                3
 338 #define SOLARIS_CONFIG_OPEN_FILES               4
 339 #define SOLARIS_CONFIG_POSIX_VER                5
 340 #define SOLARIS_CONFIG_PAGESIZE                 6
 341 #define SOLARIS_CONFIG_CLK_TCK                  7
 342 #define SOLARIS_CONFIG_XOPEN_VER                8
 343 #define SOLARIS_CONFIG_PROF_TCK                 10
 344 #define SOLARIS_CONFIG_NPROC_CONF               11
 345 #define SOLARIS_CONFIG_NPROC_ONLN               12
 346 #define SOLARIS_CONFIG_AIO_LISTIO_MAX           13
 347 #define SOLARIS_CONFIG_AIO_MAX                  14
 348 #define SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX       15
 349 #define SOLARIS_CONFIG_DELAYTIMER_MAX           16
 350 #define SOLARIS_CONFIG_MQ_OPEN_MAX              17
 351 #define SOLARIS_CONFIG_MQ_PRIO_MAX              18
 352 #define SOLARIS_CONFIG_RTSIG_MAX                19
 353 #define SOLARIS_CONFIG_SEM_NSEMS_MAX            20
 354 #define SOLARIS_CONFIG_SEM_VALUE_MAX            21
 355 #define SOLARIS_CONFIG_SIGQUEUE_MAX             22
 356 #define SOLARIS_CONFIG_SIGRT_MIN                23
 357 #define SOLARIS_CONFIG_SIGRT_MAX                24
 358 #define SOLARIS_CONFIG_TIMER_MAX                25
 359 #define SOLARIS_CONFIG_PHYS_PAGES               26
 360 #define SOLARIS_CONFIG_AVPHYS_PAGES             27
 361
 362 asmlinkage int solaris_sysconf(int id)
 363 {
 364         switch (id) {
 365         case SOLARIS_CONFIG_NGROUPS:    return NGROUPS_MAX;
 366         case SOLARIS_CONFIG_CHILD_MAX:
 367                 return current->signal->rlim[RLIMIT_NPROC].rlim_cur;
 368         case SOLARIS_CONFIG_OPEN_FILES:
 369                 return current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
 370         case SOLARIS_CONFIG_POSIX_VER:  return 199309;
 371         case SOLARIS_CONFIG_PAGESIZE:   return PAGE_SIZE;
 372         case SOLARIS_CONFIG_XOPEN_VER:  return 3;
 373         case SOLARIS_CONFIG_CLK_TCK:
 374         case SOLARIS_CONFIG_PROF_TCK:
 375                 return sparc64_get_clock_tick(smp_processor_id());
 376 #ifdef CONFIG_SMP
 377         case SOLARIS_CONFIG_NPROC_CONF: return NR_CPUS;
 378         case SOLARIS_CONFIG_NPROC_ONLN: return num_online_cpus();
 379 #else
 380         case SOLARIS_CONFIG_NPROC_CONF: return 1;
 381         case SOLARIS_CONFIG_NPROC_ONLN: return 1;
 382 #endif
 383         case SOLARIS_CONFIG_SIGRT_MIN:          return 37;
 384         case SOLARIS_CONFIG_SIGRT_MAX:          return 44;
 385         case SOLARIS_CONFIG_PHYS_PAGES:
 386         case SOLARIS_CONFIG_AVPHYS_PAGES:
 387                 {
 388                         struct sysinfo s;
 389
 390                         si_meminfo(&s);
 391                         if (id == SOLARIS_CONFIG_PHYS_PAGES)
 392                                 return s.totalram >>= PAGE_SHIFT;
 393                         else
 394                                 return s.freeram >>= PAGE_SHIFT;
 395                 }
 396         /* XXX support these as well -jj */
 397         case SOLARIS_CONFIG_AIO_LISTIO_MAX:     return -EINVAL;
 398         case SOLARIS_CONFIG_AIO_MAX:            return -EINVAL;
 399         case SOLARIS_CONFIG_AIO_PRIO_DELTA_MAX: return -EINVAL;
 400         case SOLARIS_CONFIG_DELAYTIMER_MAX:     return -EINVAL;
 401         case SOLARIS_CONFIG_MQ_OPEN_MAX:        return -EINVAL;
 402         case SOLARIS_CONFIG_MQ_PRIO_MAX:        return -EINVAL;
 403         case SOLARIS_CONFIG_RTSIG_MAX:          return -EINVAL;
 404         case SOLARIS_CONFIG_SEM_NSEMS_MAX:      return -EINVAL;
 405         case SOLARIS_CONFIG_SEM_VALUE_MAX:      return -EINVAL;
 406         case SOLARIS_CONFIG_SIGQUEUE_MAX:       return -EINVAL;
 407         case SOLARIS_CONFIG_TIMER_MAX:          return -EINVAL;
 408         default: return -EINVAL;
 409         }
 410 }
 411
 412 asmlinkage int solaris_procids(int cmd, s32 pid, s32 pgid)
 413 {
 414         int ret;
 415
 416         switch (cmd) {
 417         case 0: /* getpgrp */
 418                 return task_pgrp_nr(current);
 419         case 1: /* setpgrp */
 420                 {
 421                         int (*sys_setpgid)(pid_t,pid_t) =
 422                                 (int (*)(pid_t,pid_t))SYS(setpgid);
 423
 424                         /* can anyone explain me the difference between
 425                            Solaris setpgrp and setsid? */
 426                         ret = sys_setpgid(0, 0);
 427                         if (ret) return ret;
 428                         proc_clear_tty(current);
 429                         return task_pgrp_nr(current);
 430                 }
 431         case 2: /* getsid */
 432                 {
 433                         int (*sys_getsid)(pid_t) = (int (*)(pid_t))SYS(getsid);
 434                         return sys_getsid(pid);
 435                 }
 436         case 3: /* setsid */
 437                 {
 438                         int (*sys_setsid)(void) = (int (*)(void))SYS(setsid);
 439                         return sys_setsid();
 440                 }
 441         case 4: /* getpgid */
 442                 {
 443                         int (*sys_getpgid)(pid_t) = (int (*)(pid_t))SYS(getpgid);
 444                         return sys_getpgid(pid);
 445                 }
 446         case 5: /* setpgid */
 447                 {
 448                         int (*sys_setpgid)(pid_t,pid_t) =
 449                                 (int (*)(pid_t,pid_t))SYS(setpgid);
 450                         return sys_setpgid(pid,pgid);
 451                 }
 452         }
 453         return -EINVAL;
 454 }
 455
 456 asmlinkage int solaris_gettimeofday(u32 tim)
 457 {
 458         int (*sys_gettimeofday)(struct timeval *, struct timezone *) =
 459                 (int (*)(struct timeval *, struct timezone *))SYS(gettimeofday);
 460
 461         return sys_gettimeofday((struct timeval *)(u64)tim, NULL);
 462 }
 463
 464 #define RLIM_SOL_INFINITY32     0x7fffffff
 465 #define RLIM_SOL_SAVED_MAX32    0x7ffffffe
 466 #define RLIM_SOL_SAVED_CUR32    0x7ffffffd
 467 #define RLIM_SOL_INFINITY       ((u64)-3)
 468 #define RLIM_SOL_SAVED_MAX      ((u64)-2)
 469 #define RLIM_SOL_SAVED_CUR      ((u64)-1)
 470 #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
 471 #define RLIMIT_SOL_NOFILE       5
 472 #define RLIMIT_SOL_VMEM         6
 473
 474 struct rlimit32 {
 475         u32     rlim_cur;
 476         u32     rlim_max;
 477 };
 478
 479 asmlinkage int solaris_getrlimit(unsigned int resource, struct rlimit32 __user *rlim)
 480 {
 481         struct rlimit r;
 482         int ret;
 483         mm_segment_t old_fs = get_fs ();
 484         int (*sys_getrlimit)(unsigned int, struct rlimit *) =
 485                 (int (*)(unsigned int, struct rlimit *))SYS(getrlimit);
 486
 487         if (resource > RLIMIT_SOL_VMEM)
 488                 return -EINVAL;
 489         switch (resource) {
 490         case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
 491         case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
 492         default: break;
 493         }
 494         set_fs (KERNEL_DS);
 495         ret = sys_getrlimit(resource, &r);
 496         set_fs (old_fs);
 497         if (!ret) {
 498                 if (r.rlim_cur == RLIM_INFINITY)
 499                         r.rlim_cur = RLIM_SOL_INFINITY32;
 500                 else if ((u64)r.rlim_cur > RLIM_SOL_INFINITY32)
 501                         r.rlim_cur = RLIM_SOL_SAVED_CUR32;
 502                 if (r.rlim_max == RLIM_INFINITY)
 503                         r.rlim_max = RLIM_SOL_INFINITY32;
 504                 else if ((u64)r.rlim_max > RLIM_SOL_INFINITY32)
 505                         r.rlim_max = RLIM_SOL_SAVED_MAX32;
 506                 ret = put_user (r.rlim_cur, &rlim->rlim_cur);
 507                 ret |= __put_user (r.rlim_max, &rlim->rlim_max);
 508         }
 509         return ret;
 510 }
 511
 512 asmlinkage int solaris_setrlimit(unsigned int resource, struct rlimit32 __user *rlim)
 513 {
 514         struct rlimit r, rold;
 515         int ret;
 516         mm_segment_t old_fs = get_fs ();
 517         int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
 518                 (int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
 519         int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
 520                 (int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);
 521
 522         if (resource > RLIMIT_SOL_VMEM)
 523                 return -EINVAL;
 524         switch (resource) {
 525         case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
 526         case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
 527         default: break;
 528         }
 529         if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
 530             __get_user (r.rlim_max, &rlim->rlim_max))
 531                 return -EFAULT;
 532         set_fs (KERNEL_DS);
 533         ret = sys_getrlimit(resource, &rold);
 534         if (!ret) {
 535                 if (r.rlim_cur == RLIM_SOL_INFINITY32)
 536                         r.rlim_cur = RLIM_INFINITY;
 537                 else if (r.rlim_cur == RLIM_SOL_SAVED_CUR32)
 538                         r.rlim_cur = rold.rlim_cur;
 539                 else if (r.rlim_cur == RLIM_SOL_SAVED_MAX32)
 540                         r.rlim_cur = rold.rlim_max;
 541                 if (r.rlim_max == RLIM_SOL_INFINITY32)
 542                         r.rlim_max = RLIM_INFINITY;
 543                 else if (r.rlim_max == RLIM_SOL_SAVED_CUR32)
 544                         r.rlim_max = rold.rlim_cur;
 545                 else if (r.rlim_max == RLIM_SOL_SAVED_MAX32)
 546                         r.rlim_max = rold.rlim_max;
 547                 ret = sys_setrlimit(resource, &r);
 548         }
 549         set_fs (old_fs);
 550         return ret;
 551 }
 552
 553 asmlinkage int solaris_getrlimit64(unsigned int resource, struct rlimit __user *rlim)
 554 {
 555         struct rlimit r;
 556         int ret;
 557         mm_segment_t old_fs = get_fs ();
 558         int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
 559                 (int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
 560
 561         if (resource > RLIMIT_SOL_VMEM)
 562                 return -EINVAL;
 563         switch (resource) {
 564         case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
 565         case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
 566         default: break;
 567         }
 568         set_fs (KERNEL_DS);
 569         ret = sys_getrlimit(resource, &r);
 570         set_fs (old_fs);
 571         if (!ret) {
 572                 if (r.rlim_cur == RLIM_INFINITY)
 573                         r.rlim_cur = RLIM_SOL_INFINITY;
 574                 if (r.rlim_max == RLIM_INFINITY)
 575                         r.rlim_max = RLIM_SOL_INFINITY;
 576                 ret = put_user (r.rlim_cur, &rlim->rlim_cur);
 577                 ret |= __put_user (r.rlim_max, &rlim->rlim_max);
 578         }
 579         return ret;
 580 }
 581
 582 asmlinkage int solaris_setrlimit64(unsigned int resource, struct rlimit __user *rlim)
 583 {
 584         struct rlimit r, rold;
 585         int ret;
 586         mm_segment_t old_fs = get_fs ();
 587         int (*sys_getrlimit)(unsigned int, struct rlimit __user *) =
 588                 (int (*)(unsigned int, struct rlimit __user *))SYS(getrlimit);
 589         int (*sys_setrlimit)(unsigned int, struct rlimit __user *) =
 590                 (int (*)(unsigned int, struct rlimit __user *))SYS(setrlimit);
 591
 592         if (resource > RLIMIT_SOL_VMEM)
 593                 return -EINVAL;
 594         switch (resource) {
 595         case RLIMIT_SOL_NOFILE: resource = RLIMIT_NOFILE; break;
 596         case RLIMIT_SOL_VMEM: resource = RLIMIT_AS; break;
 597         default: break;
 598         }
 599         if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
 600             __get_user (r.rlim_max, &rlim->rlim_max))
 601                 return -EFAULT;
 602         set_fs (KERNEL_DS);
 603         ret = sys_getrlimit(resource, &rold);
 604         if (!ret) {
 605                 if (r.rlim_cur == RLIM_SOL_INFINITY)
 606                         r.rlim_cur = RLIM_INFINITY;
 607                 else if (r.rlim_cur == RLIM_SOL_SAVED_CUR)
 608                         r.rlim_cur = rold.rlim_cur;
 609                 else if (r.rlim_cur == RLIM_SOL_SAVED_MAX)
 610                         r.rlim_cur = rold.rlim_max;
 611                 if (r.rlim_max == RLIM_SOL_INFINITY)
 612                         r.rlim_max = RLIM_INFINITY;
 613                 else if (r.rlim_max == RLIM_SOL_SAVED_CUR)
 614                         r.rlim_max = rold.rlim_cur;
 615                 else if (r.rlim_max == RLIM_SOL_SAVED_MAX)
 616                         r.rlim_max = rold.rlim_max;
 617                 ret = sys_setrlimit(resource, &r);
 618         }
 619         set_fs (old_fs);
 620         return ret;
 621 }
 622
 623 struct sol_ntptimeval {
 624         struct compat_timeval time;
 625         s32 maxerror;
 626         s32 esterror;
 627 };
 628
 629 struct sol_timex {
 630         u32 modes;
 631         s32 offset;
 632         s32 freq;
 633         s32 maxerror;
 634         s32 esterror;
 635         s32 status;
 636         s32 constant;
 637         s32 precision;
 638         s32 tolerance;
 639         s32 ppsfreq;
 640         s32 jitter;
 641         s32 shift;
 642         s32 stabil;
 643         s32 jitcnt;
 644         s32 calcnt;
 645         s32 errcnt;
 646         s32 stbcnt;
 647 };
 648
 649 asmlinkage int solaris_ntp_gettime(struct sol_ntptimeval __user *ntp)
 650 {
 651         int (*sys_adjtimex)(struct timex __user *) =
 652                 (int (*)(struct timex __user *))SYS(adjtimex);
 653         struct timex t;
 654         int ret;
 655         mm_segment_t old_fs = get_fs();
 656
 657         set_fs(KERNEL_DS);
 658         t.modes = 0;
 659         ret = sys_adjtimex(&t);
 660         set_fs(old_fs);
 661         if (ret < 0)
 662                 return ret;
 663         ret = put_user (t.time.tv_sec, &ntp->time.tv_sec);
 664         ret |= __put_user (t.time.tv_usec, &ntp->time.tv_usec);
 665         ret |= __put_user (t.maxerror, &ntp->maxerror);
 666         ret |= __put_user (t.esterror, &ntp->esterror);
 667         return ret;
 668 }
 669
 670 asmlinkage int solaris_ntp_adjtime(struct sol_timex __user *txp)
 671 {
 672         int (*sys_adjtimex)(struct timex __user *) =
 673                 (int (*)(struct timex __user *))SYS(adjtimex);
 674         struct timex t;
 675         int ret, err;
 676         mm_segment_t old_fs = get_fs();
 677
 678         ret = get_user (t.modes, &txp->modes);
 679         ret |= __get_user (t.offset, &txp->offset);
 680         ret |= __get_user (t.freq, &txp->freq);
 681         ret |= __get_user (t.maxerror, &txp->maxerror);
 682         ret |= __get_user (t.esterror, &txp->esterror);
 683         ret |= __get_user (t.status, &txp->status);
 684         ret |= __get_user (t.constant, &txp->constant);
 685         set_fs(KERNEL_DS);
 686         ret = sys_adjtimex(&t);
 687         set_fs(old_fs);
 688         if (ret < 0)
 689                 return ret;
 690         err = put_user (t.offset, &txp->offset);
 691         err |= __put_user (t.freq, &txp->freq);
 692         err |= __put_user (t.maxerror, &txp->maxerror);
 693         err |= __put_user (t.esterror, &txp->esterror);
 694         err |= __put_user (t.status, &txp->status);
 695         err |= __put_user (t.constant, &txp->constant);
 696         err |= __put_user (t.precision, &txp->precision);
 697         err |= __put_user (t.tolerance, &txp->tolerance);
 698         err |= __put_user (t.ppsfreq, &txp->ppsfreq);
 699         err |= __put_user (t.jitter, &txp->jitter);
 700         err |= __put_user (t.shift, &txp->shift);
 701         err |= __put_user (t.stabil, &txp->stabil);
 702         err |= __put_user (t.jitcnt, &txp->jitcnt);
 703         err |= __put_user (t.calcnt, &txp->calcnt);
 704         err |= __put_user (t.errcnt, &txp->errcnt);
 705         err |= __put_user (t.stbcnt, &txp->stbcnt);
 706         if (err)
 707                 return -EFAULT;
 708         return ret;
 709 }
 710
 711 asmlinkage int do_sol_unimplemented(struct pt_regs *regs)
 712 {
 713         printk ("Unimplemented Solaris syscall %d %08x %08x %08x %08x\n",
 714                         (int)regs->u_regs[UREG_G1],
 715                         (int)regs->u_regs[UREG_I0],
 716                         (int)regs->u_regs[UREG_I1],
 717                         (int)regs->u_regs[UREG_I2],
 718                         (int)regs->u_regs[UREG_I3]);
 719         return -ENOSYS;
 720 }
 721
 722 asmlinkage void solaris_register(void)
 723 {
 724         set_personality(PER_SVR4);
 725 }
 726
 727 extern long solaris_to_linux_signals[], linux_to_solaris_signals[];
 728
 729 struct exec_domain solaris_exec_domain = {
 730         .name =         "Solaris",
 731         .handler =      NULL,
 732         .pers_low =     1,              /* PER_SVR4 personality */
 733         .pers_high =    1,
 734         .signal_map =   solaris_to_linux_signals,
 735         .signal_invmap =linux_to_solaris_signals,
 736         .module =       THIS_MODULE,
 737         .next =         NULL
 738 };
 739
 740 extern int init_socksys(void);
 741
 742 MODULE_AUTHOR("Jakub Jelinek (jj@ultra.linux.cz), Patrik Rak (prak3264@ss1000.ms.mff.cuni.cz)");
 743 MODULE_DESCRIPTION("Solaris binary emulation module");
 744 MODULE_LICENSE("GPL");
 745
 746 extern u32 tl0_solaris[8];
 747 #define update_ttable(x)                                                                                \
 748         tl0_solaris[3] = (((long)(x) - (long)tl0_solaris - 3) >> 2) | 0x40000000;                       \
 749         wmb();          \
 750         __asm__ __volatile__ ("flush %0" : : "r" (&tl0_solaris[3]))
 751
 752 extern u32 solaris_sparc_syscall[];
 753 extern u32 solaris_syscall[];
 754 extern void cleanup_socksys(void);
 755
 756 extern u32 entry64_personality_patch;
 757
 758 static int __init solaris_init(void)
 759 {
 760         int ret;
 761
 762         SOLDD(("Solaris module at %p\n", solaris_sparc_syscall));
 763         register_exec_domain(&solaris_exec_domain);
 764         if ((ret = init_socksys())) {
 765                 unregister_exec_domain(&solaris_exec_domain);
 766                 return ret;
 767         }
 768         update_ttable(solaris_sparc_syscall);
 769         entry64_personality_patch |=
 770                 (offsetof(struct task_struct, personality) +
 771                  (sizeof(unsigned long) - 1));
 772         wmb();
 773         __asm__ __volatile__("flush %0"
 774                              : : "r" (&entry64_personality_patch));
 775         return 0;
 776 }
 777
 778 static void __exit solaris_exit(void)
 779 {
 780         update_ttable(solaris_syscall);
 781         cleanup_socksys();
 782         unregister_exec_domain(&solaris_exec_domain);
 783 }
 784
 785 module_init(solaris_init);
 786 module_exit(solaris_exit);