sim/ppc/emul_netbsd.c

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19     */
  20
  21
  22 #ifndef _EMUL_NETBSD_C_
  23 #define _EMUL_NETBSD_C_
  24
  25
  26 /* Note: this module is called via a table.  There is no benefit in
  27    making it inline */
  28
  29 #include "emul_generic.h"
  30 #include "emul_netbsd.h"
  31
  32 #ifdef HAVE_STRING_H
  33 #include <string.h>
  34 #else
  35 #ifdef HAVE_STRINGS_H
  36 #include <strings.h>
  37 #endif
  38 #endif
  39
  40 #include <sys/types.h>
  41 #include <sys/stat.h>
  42 #include <stdio.h>
  43 #include <signal.h>
  44 #include <fcntl.h>
  45 #include <sys/errno.h>
  46 #include <sys/param.h>
  47 #include <sys/time.h>
  48 #include <sys/resource.h>
  49 int getrusage();
  50
  51 #include <sys/ioctl.h>
  52 #include <sys/mount.h>
  53
  54 #if HAVE_DIRENT_H
  55 # include <dirent.h>
  56 # define NAMLEN(dirent) strlen((dirent)->d_name)
  57 #else
  58 # define dirent direct
  59 # define NAMLEN(dirent) (dirent)->d_namlen
  60 # if HAVE_SYS_NDIR_H
  61 #  include <sys/ndir.h>
  62 # endif
  63 # if HAVE_SYS_DIR_H
  64 #  include <sys/dir.h>
  65 # endif
  66 # if HAVE_NDIR_H
  67 #  include <ndir.h>
  68 # endif
  69 #endif
  70
  71 #ifdef HAVE_UNISTD_H
  72 #include <unistd.h>
  73 #endif
  74
  75 #ifdef HAVE_STDLIB_H
  76 #include <stdlib.h>
  77 #endif
  78
  79 #define WITH_NetBSD_HOST (NetBSD >= 199306)
  80 #if WITH_NetBSD_HOST /* here NetBSD as that is what we're emulating */
  81 #include <sys/syscall.h> /* FIXME - should not be including this one */
  82 #include <sys/sysctl.h>
  83 extern int getdirentries(int fd, char *buf, int nbytes, long *basep);
  84 #endif
  85
  86 #if (BSD < 199306) /* here BSD as just a bug */
  87 extern int errno;
  88 #endif
  89
  90 #ifndef STATIC_INLINE_EMUL_NETBSD
  91 #define STATIC_INLINE_EMUL_NETBSD STATIC_INLINE
  92 #endif
  93
  94
  95 #if WITH_NetBSD_HOST
  96 #define SYS(X) ASSERT(call == (SYS_##X))
  97 #else
  98 #define SYS(X)
  99 #endif
 100
 101 #if WITH_NetBSD_HOST && (PATH_MAX != 1024)
 102 #error "PATH_MAX not 1024"
 103 #elif !defined(PATH_MAX)
 104 #define PATH_MAX 1024
 105 #endif
 106
 107
 108 /* NetBSD's idea of what is needed to implement emulations */
 109
 110 struct _os_emul_data {
 111   device *vm;
 112   emul_syscall *syscalls;
 113 };
 114
 115
 116
 117 STATIC_INLINE_EMUL_NETBSD void
 118 write_stat(unsigned_word addr,
 119            struct stat buf,
 120            cpu *processor,
 121            unsigned_word cia)
 122 {
 123   H2T(buf.st_dev);
 124   H2T(buf.st_ino);
 125   H2T(buf.st_mode);
 126   H2T(buf.st_nlink);
 127   H2T(buf.st_uid);
 128   H2T(buf.st_gid);
 129   H2T(buf.st_rdev);
 130   H2T(buf.st_size);
 131   H2T(buf.st_atime);
 132   /* H2T(buf.st_spare1); */
 133   H2T(buf.st_mtime);
 134   /* H2T(buf.st_spare2); */
 135   H2T(buf.st_ctime);
 136   /* H2T(buf.st_spare3); */
 137   H2T(buf.st_blksize);
 138   H2T(buf.st_blocks);
 139 #if WITH_NetBSD_HOST
 140   H2T(buf.st_flags);
 141   H2T(buf.st_gen);
 142 #endif
 143   emul_write_buffer(&buf, addr, sizeof(buf), processor, cia);
 144 }
 145
 146
 147 #if NetBSD
 148 STATIC_INLINE_EMUL_NETBSD void
 149 write_statfs(unsigned_word addr,
 150              struct statfs buf,
 151              cpu *processor,
 152              unsigned_word cia)
 153 {
 154   H2T(buf.f_type);
 155   H2T(buf.f_flags);
 156   H2T(buf.f_bsize);
 157   H2T(buf.f_iosize);
 158   H2T(buf.f_blocks);
 159   H2T(buf.f_bfree);
 160   H2T(buf.f_bavail);
 161   H2T(buf.f_files);
 162   H2T(buf.f_ffree);
 163   H2T(buf.f_fsid.val[0]);
 164   H2T(buf.f_fsid.val[1]);
 165   H2T(buf.f_owner);
 166   /* f_spare[4]; */
 167   /* f_fstypename[MFSNAMELEN]; */
 168   /* f_mntonname[MNAMELEN]; */
 169   /* f_mntfromname[MNAMELEN]; */
 170   emul_write_buffer(&buf, addr, sizeof(buf), processor, cia);
 171 }
 172 #endif
 173
 174
 175 STATIC_INLINE_EMUL_NETBSD void
 176 write_timeval(unsigned_word addr,
 177               struct timeval t,
 178               cpu *processor,
 179               unsigned_word cia)
 180 {
 181   H2T(t.tv_sec);
 182   H2T(t.tv_usec);
 183   emul_write_buffer(&t, addr, sizeof(t), processor, cia);
 184 }
 185
 186
 187 STATIC_INLINE_EMUL_NETBSD void
 188 write_timezone(unsigned_word addr,
 189                struct timezone tz,
 190                cpu *processor,
 191                unsigned_word cia)
 192 {
 193   H2T(tz.tz_minuteswest);
 194   H2T(tz.tz_dsttime);
 195   emul_write_buffer(&tz, addr, sizeof(tz), processor, cia);
 196 }
 197
 198
 199 #if WITH_NetBSD_HOST
 200 STATIC_INLINE_EMUL_NETBSD void
 201 write_direntries(unsigned_word addr,
 202                  char *buf,
 203                  int nbytes,
 204                  cpu *processor,
 205                  unsigned_word cia)
 206 {
 207   while (nbytes > 0) {
 208     struct dirent *out;
 209     struct dirent *in = (struct dirent*)buf;
 210     ASSERT(in->d_reclen <= nbytes);
 211     out = (struct dirent*)zalloc(in->d_reclen);
 212     memcpy(out/*dest*/, in/*src*/, in->d_reclen);
 213     H2T(out->d_fileno);
 214     H2T(out->d_reclen);
 215     H2T(out->d_type);
 216     H2T(out->d_namlen);
 217     emul_write_buffer(out, addr, in->d_reclen, processor, cia);
 218     nbytes -= in->d_reclen;
 219     addr += in->d_reclen;
 220     buf += in->d_reclen;
 221     zfree(out);
 222   }
 223 }
 224 #endif
 225
 226
 227 STATIC_INLINE_EMUL_NETBSD void
 228 write_rusage(unsigned_word addr,
 229              struct rusage rusage,
 230              cpu *processor,
 231              unsigned_word cia)
 232 {
 233   H2T(rusage.ru_utime.tv_sec); /* user time used */
 234   H2T(rusage.ru_utime.tv_usec);
 235   H2T(rusage.ru_stime.tv_sec); /* system time used */
 236   H2T(rusage.ru_stime.tv_usec);
 237   H2T(rusage.ru_maxrss);          /* integral max resident set size */
 238   H2T(rusage.ru_ixrss);           /* integral shared text memory size */
 239   H2T(rusage.ru_idrss);           /* integral unshared data size */
 240   H2T(rusage.ru_isrss);           /* integral unshared stack size */
 241   H2T(rusage.ru_minflt);          /* page reclaims */
 242   H2T(rusage.ru_majflt);          /* page faults */
 243   H2T(rusage.ru_nswap);           /* swaps */
 244   H2T(rusage.ru_inblock);         /* block input operations */
 245   H2T(rusage.ru_oublock);         /* block output operations */
 246   H2T(rusage.ru_msgsnd);          /* messages sent */
 247   H2T(rusage.ru_msgrcv);          /* messages received */
 248   H2T(rusage.ru_nsignals);        /* signals received */
 249   H2T(rusage.ru_nvcsw);           /* voluntary context switches */
 250   H2T(rusage.ru_nivcsw);          /* involuntary context switches */
 251   emul_write_buffer(&rusage, addr, sizeof(rusage), processor, cia);
 252 }
 253
 254
 255 static void
 256 do_exit(os_emul_data *emul,
 257         unsigned call,
 258         const int arg0,
 259         cpu *processor,
 260         unsigned_word cia)
 261 {
 262   int status = (int)cpu_registers(processor)->gpr[arg0];
 263   SYS(exit);
 264   if (WITH_TRACE && ppc_trace[trace_os_emul])
 265     printf_filtered ("%d)\n", status);
 266
 267   cpu_halt(processor, cia, was_exited, status);
 268 }
 269
 270
 271 static void
 272 do_read(os_emul_data *emul,
 273         unsigned call,
 274         const int arg0,
 275         cpu *processor,
 276         unsigned_word cia)
 277 {
 278   void *scratch_buffer;
 279   int d = (int)cpu_registers(processor)->gpr[arg0];
 280   unsigned_word buf = cpu_registers(processor)->gpr[arg0+1];
 281   int nbytes = cpu_registers(processor)->gpr[arg0+2];
 282   int status;
 283   SYS(read);
 284
 285   if (WITH_TRACE && ppc_trace[trace_os_emul])
 286     printf_filtered ("%d, 0x%lx, %d", d, (long)buf, nbytes);
 287
 288   /* get a tempoary bufer */
 289   scratch_buffer = zalloc(nbytes);
 290
 291   /* check if buffer exists by reading it */
 292   emul_read_buffer(scratch_buffer, buf, nbytes, processor, cia);
 293
 294   /* read */
 295 #if 0
 296   if (d == 0) {
 297     status = fread (scratch_buffer, 1, nbytes, stdin);
 298     if (status == 0 && ferror (stdin))
 299       status = -1;
 300   }
 301 #endif
 302   status = read (d, scratch_buffer, nbytes);
 303
 304   if (status == -1) {
 305     cpu_registers(processor)->gpr[0] = errno;
 306   } else {
 307     cpu_registers(processor)->gpr[3] = status;
 308
 309     if (status > 0)
 310       emul_write_buffer(scratch_buffer, buf, status, processor, cia);
 311   }
 312
 313   zfree(scratch_buffer);
 314 }
 315
 316
 317 static void
 318 do_write(os_emul_data *emul,
 319          unsigned call,
 320          const int arg0,
 321          cpu *processor,
 322          unsigned_word cia)
 323 {
 324   void *scratch_buffer = NULL;
 325   int nr_moved;
 326   int d = (int)cpu_registers(processor)->gpr[arg0];
 327   unsigned_word buf = cpu_registers(processor)->gpr[arg0+1];
 328   int nbytes = cpu_registers(processor)->gpr[arg0+2];
 329   int status;
 330   SYS(write);
 331
 332   if (WITH_TRACE && ppc_trace[trace_os_emul])
 333     printf_filtered ("%d, 0x%lx, %d", d, (long)buf, nbytes);
 334
 335   /* get a tempoary bufer */
 336   scratch_buffer = zalloc(nbytes); /* FIXME - nbytes == 0 */
 337
 338   /* copy in */
 339   nr_moved = vm_data_map_read_buffer(cpu_data_map(processor),
 340                                      scratch_buffer,
 341                                      buf,
 342                                      nbytes);
 343   if (nr_moved != nbytes) {
 344     /* FIXME - should handle better */
 345     error("system_call()write copy failed (nr_moved=%d != nbytes=%d)\n",
 346           nr_moved, nbytes);
 347   }
 348
 349   /* write */
 350   status = write(d, scratch_buffer, nbytes);
 351   emul_write_status(processor, status, errno);
 352   zfree(scratch_buffer);
 353 }
 354
 355
 356 static void
 357 do_open(os_emul_data *emul,
 358         unsigned call,
 359         const int arg0,
 360         cpu *processor,
 361         unsigned_word cia)
 362 {
 363   unsigned_word path_addr = cpu_registers(processor)->gpr[arg0];
 364   char path_buf[PATH_MAX];
 365   char *path = emul_read_string(path_buf, path_addr, PATH_MAX, processor, cia);
 366   int flags = (int)cpu_registers(processor)->gpr[arg0+1];
 367   int mode = (int)cpu_registers(processor)->gpr[arg0+2];
 368
 369   if (WITH_TRACE && ppc_trace[trace_os_emul])
 370     printf_filtered ("0x%lx [%s], 0x%x, 0x%x", (long)path_addr, path, flags, mode);
 371
 372   SYS(open);
 373   emul_write_status(processor, open(path, flags, mode), errno);
 374 }
 375
 376
 377 static void
 378 do_close(os_emul_data *emul,
 379          unsigned call,
 380          const int arg0,
 381          cpu *processor,
 382          unsigned_word cia)
 383 {
 384   int d = (int)cpu_registers(processor)->gpr[arg0];
 385
 386   if (WITH_TRACE && ppc_trace[trace_os_emul])
 387     printf_filtered ("%d", d);
 388
 389   SYS(close);
 390   emul_write_status(processor, close(d), errno);
 391 }
 392
 393
 394 static void
 395 do_break(os_emul_data *emul,
 396          unsigned call,
 397          const int arg0,
 398          cpu *processor,
 399          unsigned_word cia)
 400 {
 401   /* just pass this onto the `vm' device */
 402   psim *system = cpu_system(processor);
 403
 404   if (WITH_TRACE && ppc_trace[trace_os_emul])
 405     printf_filtered ("0x%lx", (long)cpu_registers(processor)->gpr[arg0]);
 406
 407   SYS(break);
 408   device_ioctl(emul->vm,
 409                system,
 410                processor,
 411                cia,
 412                0, /*ioctl*/
 413                NULL); /*ioctl-data*/
 414 }
 415
 416
 417 static void
 418 do_getpid(os_emul_data *emul,
 419           unsigned call,
 420           const int arg0,
 421           cpu *processor,
 422           unsigned_word cia)
 423 {
 424   SYS(getpid);
 425   cpu_registers(processor)->gpr[3] = (int)getpid();
 426 }
 427
 428
 429 static void
 430 do_getuid(os_emul_data *emul,
 431           unsigned call,
 432           const int arg0,
 433           cpu *processor,
 434           unsigned_word cia)
 435 {
 436   SYS(getuid);
 437   cpu_registers(processor)->gpr[3] = (int)getuid();
 438 }
 439
 440
 441 static void
 442 do_geteuid(os_emul_data *emul,
 443            unsigned call,
 444            const int arg0,
 445            cpu *processor,
 446            unsigned_word cia)
 447 {
 448   SYS(geteuid);
 449   cpu_registers(processor)->gpr[3] = (int)geteuid();
 450 }
 451
 452
 453 static void
 454 do_kill(os_emul_data *emul,
 455         unsigned call,
 456         const int arg0,
 457         cpu *processor,
 458         unsigned_word cia)
 459 {
 460   pid_t pid = cpu_registers(processor)->gpr[arg0];
 461   int sig = cpu_registers(processor)->gpr[arg0+1];
 462
 463   if (WITH_TRACE && ppc_trace[trace_os_emul])
 464     printf_filtered ("%d, %d", (int)pid, sig);
 465
 466   SYS(kill);
 467   printf_filtered("SYS_kill at 0x%lx - more to this than just being killed\n",
 468                   (long)cia);
 469   cpu_halt(processor, cia, was_signalled, sig);
 470 }
 471
 472
 473 static void
 474 do_dup(os_emul_data *emul,
 475        unsigned call,
 476        const int arg0,
 477        cpu *processor,
 478        unsigned_word cia)
 479 {
 480   int oldd = cpu_registers(processor)->gpr[arg0];
 481   int status = dup(oldd);
 482
 483   if (WITH_TRACE && ppc_trace[trace_os_emul])
 484     printf_filtered ("%d", oldd);
 485
 486   SYS(dup);
 487   emul_write_status(processor, status, errno);
 488 }
 489
 490
 491 static void
 492 do_getegid(os_emul_data *emul,
 493            unsigned call,
 494            const int arg0,
 495            cpu *processor,
 496            unsigned_word cia)
 497 {
 498   SYS(getegid);
 499   cpu_registers(processor)->gpr[3] = (int)getegid();
 500 }
 501
 502
 503 static void
 504 do_getgid(os_emul_data *emul,
 505           unsigned call,
 506           const int arg0,
 507           cpu *processor,
 508           unsigned_word cia)
 509 {
 510   SYS(getgid);
 511   cpu_registers(processor)->gpr[3] = (int)getgid();
 512 }
 513
 514
 515 static void
 516 do_sigprocmask(os_emul_data *emul,
 517                unsigned call,
 518                const int arg0,
 519                cpu *processor,
 520                unsigned_word cia)
 521 {
 522   natural_word how = cpu_registers(processor)->gpr[arg0];
 523   unsigned_word set = cpu_registers(processor)->gpr[arg0+1];
 524   unsigned_word oset = cpu_registers(processor)->gpr[arg0+2];
 525   SYS(sigprocmask);
 526
 527   if (WITH_TRACE && ppc_trace[trace_os_emul])
 528     printf_filtered ("%ld, 0x%ld, 0x%ld", (long)how, (long)set, (long)oset);
 529
 530   cpu_registers(processor)->gpr[3] = 0;
 531   cpu_registers(processor)->gpr[4] = set;
 532 }
 533
 534
 535 static void
 536 do_ioctl(os_emul_data *emul,
 537          unsigned call,
 538          const int arg0,
 539          cpu *processor,
 540          unsigned_word cia)
 541 {
 542   int d = cpu_registers(processor)->gpr[arg0];
 543   unsigned request = cpu_registers(processor)->gpr[arg0+1];
 544   unsigned_word argp_addr = cpu_registers(processor)->gpr[arg0+2];
 545
 546 #if !WITH_NetBSD_HOST
 547   cpu_registers(processor)->gpr[arg0] = 0; /* just succeed */
 548 #else
 549   unsigned dir = request & IOC_DIRMASK;
 550   int status;
 551   SYS(ioctl);
 552   /* what we haven't done */
 553   if (dir & IOC_IN /* write into the io device */
 554       || dir & IOC_OUT
 555       || !(dir & IOC_VOID))
 556     error("do_ioctl() read or write of parameter not implemented\n");
 557   status = ioctl(d, request, NULL);
 558   emul_write_status(processor, status, errno);
 559 #endif
 560
 561   if (WITH_TRACE && ppc_trace[trace_os_emul])
 562     printf_filtered ("%d, 0x%x, 0x%lx", d, request, (long)argp_addr);
 563 }
 564
 565
 566 static void
 567 do_umask(os_emul_data *emul,
 568          unsigned call,
 569          const int arg0,
 570          cpu *processor,
 571          unsigned_word cia)
 572 {
 573   int mask = cpu_registers(processor)->gpr[arg0];
 574
 575   if (WITH_TRACE && ppc_trace[trace_os_emul])
 576     printf_filtered ("0%o", mask);
 577
 578   SYS(umask);
 579   cpu_registers(processor)->gpr[3] = umask(mask);
 580 }
 581
 582
 583 static void
 584 do_dup2(os_emul_data *emul,
 585         unsigned call,
 586         const int arg0,
 587         cpu *processor,
 588         unsigned_word cia)
 589 {
 590   int oldd = cpu_registers(processor)->gpr[arg0];
 591   int newd = cpu_registers(processor)->gpr[arg0+1];
 592   int status = dup2(oldd, newd);
 593
 594   if (WITH_TRACE && ppc_trace[trace_os_emul])
 595     printf_filtered ("%d, %d", oldd, newd);
 596
 597   SYS(dup2);
 598   emul_write_status(processor, status, errno);
 599 }
 600
 601
 602 static void
 603 do_fcntl(os_emul_data *emul,
 604          unsigned call,
 605          const int arg0,
 606          cpu *processor,
 607          unsigned_word cia)
 608 {
 609   int fd = cpu_registers(processor)->gpr[arg0];
 610   int cmd = cpu_registers(processor)->gpr[arg0+1];
 611   int arg = cpu_registers(processor)->gpr[arg0+2];
 612   int status;
 613
 614   if (WITH_TRACE && ppc_trace[trace_os_emul])
 615     printf_filtered ("%d, %d, %d", fd, cmd, arg);
 616
 617   SYS(fcntl);
 618   status = fcntl(fd, cmd, arg);
 619   emul_write_status(processor, status, errno);
 620 }
 621
 622
 623 static void
 624 do_gettimeofday(os_emul_data *emul,
 625                 unsigned call,
 626                 const int arg0,
 627                 cpu *processor,
 628                 unsigned_word cia)
 629 {
 630   unsigned_word t_addr = cpu_registers(processor)->gpr[arg0];
 631   unsigned_word tz_addr = cpu_registers(processor)->gpr[arg0+1];
 632   struct timeval t;
 633   struct timezone tz;
 634   int status = gettimeofday((t_addr != 0 ? &t : NULL),
 635                             (tz_addr != 0 ? &tz : NULL));
 636
 637   if (WITH_TRACE && ppc_trace[trace_os_emul])
 638     printf_filtered ("0x%lx, 0x%lx", (long)t_addr, (long)tz_addr);
 639
 640   SYS(gettimeofday);
 641   emul_write_status(processor, status, errno);
 642   if (status == 0) {
 643     if (t_addr != 0)
 644       write_timeval(t_addr, t, processor, cia);
 645     if (tz_addr != 0)
 646       write_timezone(tz_addr, tz, processor, cia);
 647   }
 648 }
 649
 650
 651 static void
 652 do_getrusage(os_emul_data *emul,
 653              unsigned call,
 654              const int arg0,
 655              cpu *processor,
 656              unsigned_word cia)
 657 {
 658   int who = cpu_registers(processor)->gpr[arg0];
 659   unsigned_word rusage_addr = cpu_registers(processor)->gpr[arg0+1];
 660   struct rusage rusage;
 661   int status = getrusage(who, (rusage_addr != 0 ? &rusage : NULL));
 662
 663   if (WITH_TRACE && ppc_trace[trace_os_emul])
 664     printf_filtered ("%d, 0x%lx", who, (long)rusage_addr);
 665
 666   SYS(getrusage);
 667   emul_write_status(processor, status, errno);
 668   if (status == 0) {
 669     if (rusage_addr != 0)
 670       write_rusage(rusage_addr, rusage, processor, cia);
 671   }
 672 }
 673
 674
 675 #if !WITH_NetBSD_HOST
 676 #define do_fstatfs 0
 677 #else
 678 static void
 679 do_fstatfs(os_emul_data *emul,
 680            unsigned call,
 681            const int arg0,
 682            cpu *processor,
 683            unsigned_word cia)
 684 {
 685   int fd = cpu_registers(processor)->gpr[arg0];
 686   unsigned_word buf_addr = cpu_registers(processor)->gpr[arg0+1];
 687   struct statfs buf;
 688   int status;
 689
 690   if (WITH_TRACE && ppc_trace[trace_os_emul])
 691     printf_filtered ("%d, 0x%lx", fd, (long)buf_addr);
 692
 693   SYS(fstatfs);
 694   status = fstatfs(fd, (buf_addr == 0 ? NULL : &buf));
 695   emul_write_status(processor, status, errno);
 696   if (status == 0) {
 697     if (buf_addr != 0)
 698       write_statfs(buf_addr, buf, processor, cia);
 699   }
 700 }
 701 #endif
 702
 703
 704 static void
 705 do_stat(os_emul_data *emul,
 706         unsigned call,
 707         const int arg0,
 708         cpu *processor,
 709         unsigned_word cia)
 710 {
 711   char path_buf[PATH_MAX];
 712   unsigned_word path_addr = cpu_registers(processor)->gpr[arg0];
 713   unsigned_word stat_buf_addr = cpu_registers(processor)->gpr[arg0+1];
 714   char *path = emul_read_string(path_buf, path_addr, PATH_MAX, processor, cia);
 715   struct stat buf;
 716   int status;
 717   SYS(stat);
 718   status = stat(path, &buf);
 719   emul_write_status(processor, status, errno);
 720   if (status == 0)
 721     write_stat(stat_buf_addr, buf, processor, cia);
 722 }
 723
 724
 725 static void
 726 do_fstat(os_emul_data *emul,
 727          unsigned call,
 728          const int arg0,
 729          cpu *processor,
 730          unsigned_word cia)
 731 {
 732   int fd = cpu_registers(processor)->gpr[arg0];
 733   unsigned_word stat_buf_addr = cpu_registers(processor)->gpr[arg0+1];
 734   struct stat buf;
 735   SYS(fstat);
 736   emul_write_status(processor, fstat(fd, &buf), errno);
 737   write_stat(stat_buf_addr, buf, processor, cia);
 738 }
 739
 740
 741 static void
 742 do_lstat(os_emul_data *emul,
 743          unsigned call,
 744          const int arg0,
 745          cpu *processor,
 746          unsigned_word cia)
 747 {
 748   char path_buf[PATH_MAX];
 749   unsigned_word path_addr = cpu_registers(processor)->gpr[arg0];
 750   char *path = emul_read_string(path_buf, path_addr, PATH_MAX, processor, cia);
 751   unsigned_word stat_buf_addr = cpu_registers(processor)->gpr[arg0+1];
 752   struct stat buf;
 753   SYS(lstat);
 754   emul_write_status(processor, stat(path, &buf), errno);
 755   write_stat(stat_buf_addr, buf, processor, cia);
 756 }
 757
 758
 759 #if !WITH_NetBSD_HOST
 760 #define do_getdirentries 0
 761 #else
 762 static void
 763 do_getdirentries(os_emul_data *emul,
 764                  unsigned call,
 765                  const int arg0,
 766                  cpu *processor,
 767                  unsigned_word cia)
 768 {
 769   int fd = cpu_registers(processor)->gpr[arg0];
 770   unsigned_word buf_addr = cpu_registers(processor)->gpr[arg0+1];
 771   char *buf;
 772   int nbytes = cpu_registers(processor)->gpr[arg0+2];
 773   unsigned_word basep_addr = cpu_registers(processor)->gpr[arg0+3];
 774   long basep;
 775   int status;
 776   SYS(getdirentries);
 777   if (buf_addr != 0 && nbytes >= 0)
 778     buf = zalloc(nbytes);
 779   else
 780     buf = NULL;
 781   status = getdirentries(fd,
 782                          (buf_addr == 0 ? NULL : buf),
 783                          nbytes,
 784                          (basep_addr == 0 ? NULL : &basep));
 785   emul_write_status(processor, status, errno);
 786   if (basep_addr != 0)
 787     emul_write_word(basep_addr, basep, processor, cia);
 788   if (status > 0)
 789     write_direntries(buf_addr, buf, status, processor, cia);
 790   if (buf != NULL)
 791     zfree(buf);
 792 }
 793 #endif
 794
 795
 796 static void
 797 do___syscall(os_emul_data *emul,
 798              unsigned call,
 799              const int arg0,
 800              cpu *processor,
 801              unsigned_word cia)
 802 {
 803   SYS(__syscall);
 804   emul_do_system_call(emul,
 805                       emul->syscalls,
 806                       cpu_registers(processor)->gpr[arg0],
 807                       arg0 + 1,
 808                       processor,
 809                       cia);
 810 }
 811
 812
 813 static void
 814 do_lseek(os_emul_data *emul,
 815          unsigned call,
 816          const int arg0,
 817          cpu *processor,
 818          unsigned_word cia)
 819 {
 820   int fildes = cpu_registers(processor)->gpr[arg0];
 821   off_t offset = emul_read_gpr64(processor, arg0+2);
 822   int whence = cpu_registers(processor)->gpr[arg0+4];
 823   off_t status;
 824   SYS(lseek);
 825   status = lseek(fildes, offset, whence);
 826   if (status == -1)
 827     emul_write_status(processor, -1, errno);
 828   else {
 829     emul_write_gpr64(processor, 3, status);
 830   }
 831 }
 832
 833
 834 static void
 835 do___sysctl(os_emul_data *emul,
 836             unsigned call,
 837             const int arg0,
 838             cpu *processor,
 839             unsigned_word cia)
 840 {
 841   /* call the arguments by their real name */
 842   unsigned_word name = cpu_registers(processor)->gpr[arg0];
 843   natural_word namelen = cpu_registers(processor)->gpr[arg0+1];
 844   unsigned_word oldp = cpu_registers(processor)->gpr[arg0+2];
 845   unsigned_word oldlenp = cpu_registers(processor)->gpr[arg0+3];
 846   natural_word oldlen;
 847   natural_word mib;
 848   natural_word int_val;
 849   SYS(__sysctl);
 850
 851   /* pluck out the management information base id */
 852   if (namelen < 1)
 853     error("system_call()SYS___sysctl bad name[0]\n");
 854   mib = vm_data_map_read_word(cpu_data_map(processor),
 855                               name,
 856                               processor,
 857                               cia);
 858   name += sizeof(mib);
 859
 860   /* see what to do with it ... */
 861   switch ((int)mib) {
 862   case 6/*CTL_HW*/:
 863 #if WITH_NetBSD_HOST && (CTL_HW != 6)
 864 #  error "CTL_HW"
 865 #endif
 866     if (namelen < 2)
 867       error("system_call()SYS___sysctl - CTL_HW - bad name[1]\n");
 868     mib = vm_data_map_read_word(cpu_data_map(processor),
 869                                 name,
 870                                 processor,
 871                                 cia);
 872     name += sizeof(mib);
 873     switch ((int)mib) {
 874     case 7/*HW_PAGESIZE*/:
 875 #if WITH_NetBSD_HOST && (HW_PAGESIZE != 7)
 876 #  error "HW_PAGESIZE"
 877 #endif
 878       oldlen = vm_data_map_read_word(cpu_data_map(processor),
 879                                      oldlenp,
 880                                      processor,
 881                                      cia);
 882       if (sizeof(natural_word) > oldlen)
 883         error("system_call()sysctl - CTL_HW.HW_PAGESIZE - to small\n");
 884       int_val = 8192;
 885       oldlen = sizeof(int_val);
 886       emul_write_word(oldp, int_val, processor, cia);
 887       emul_write_word(oldlenp, oldlen, processor, cia);
 888       break;
 889     default:
 890       error("sysctl() CTL_HW.%d unknown\n", mib);
 891       break;
 892     }
 893     break;
 894   default:
 895     error("sysctl() name[0]=%d unknown\n", (int)mib);
 896     break;
 897   }
 898   cpu_registers(processor)->gpr[3] = 0;
 899 }
 900
 901
 902
 903 static emul_syscall_descriptor netbsd_descriptors[] = {
 904   /* 0 */ { 0, "syscall" },
 905   /* 1 */ { do_exit, "exit" },
 906   /* 2 */ { 0, "fork" },
 907   /* 3 */ { do_read, "read" },
 908   /* 4 */ { do_write, "write" },
 909   /* 5 */ { do_open, "open" },
 910   /* 6 */ { do_close, "close" },
 911   /* 7 */ { 0, "wait4" },
 912   { 0, }, /* 8 is old creat */
 913   /* 9 */ { 0, "link" },
 914   /* 10 */ { 0, "unlink" },
 915   { 0, }, /* 11 is obsolete execv */
 916   /* 12 */ { 0, "chdir" },
 917   /* 13 */ { 0, "fchdir" },
 918   /* 14 */ { 0, "mknod" },
 919   /* 15 */ { 0, "chmod" },
 920   /* 16 */ { 0, "chown" },
 921   /* 17 */ { do_break, "break" },
 922   /* 18 */ { 0, "getfsstat" },
 923   { 0, }, /* 19 is old lseek */
 924   /* 20 */ { do_getpid, "getpid" },
 925   /* 21 */ { 0, "mount" },
 926   /* 22 */ { 0, "unmount" },
 927   /* 23 */ { 0, "setuid" },
 928   /* 24 */ { do_getuid, "getuid" },
 929   /* 25 */ { do_geteuid, "geteuid" },
 930   /* 26 */ { 0, "ptrace" },
 931   /* 27 */ { 0, "recvmsg" },
 932   /* 28 */ { 0, "sendmsg" },
 933   /* 29 */ { 0, "recvfrom" },
 934   /* 30 */ { 0, "accept" },
 935   /* 31 */ { 0, "getpeername" },
 936   /* 32 */ { 0, "getsockname" },
 937   /* 33 */ { 0, "access" },
 938   /* 34 */ { 0, "chflags" },
 939   /* 35 */ { 0, "fchflags" },
 940   /* 36 */ { 0, "sync" },
 941   /* 37 */ { do_kill, "kill" },
 942   { 0, }, /* 38 is old stat */
 943   /* 39 */ { 0, "getppid" },
 944   { 0, }, /* 40 is old lstat */
 945   /* 41 */ { do_dup, "dup" },
 946   /* 42 */ { 0, "pipe" },
 947   /* 43 */ { do_getegid, "getegid" },
 948   /* 44 */ { 0, "profil" },
 949   /* 45 */ { 0, "ktrace" },
 950   /* 46 */ { 0, "sigaction" },
 951   /* 47 */ { do_getgid, "getgid" },
 952   /* 48 */ { do_sigprocmask, "sigprocmask" },
 953   /* 49 */ { 0, "getlogin" },
 954   /* 50 */ { 0, "setlogin" },
 955   /* 51 */ { 0, "acct" },
 956   /* 52 */ { 0, "sigpending" },
 957   /* 53 */ { 0, "sigaltstack" },
 958   /* 54 */ { do_ioctl, "ioctl" },
 959   /* 55 */ { 0, "reboot" },
 960   /* 56 */ { 0, "revoke" },
 961   /* 57 */ { 0, "symlink" },
 962   /* 58 */ { 0, "readlink" },
 963   /* 59 */ { 0, "execve" },
 964   /* 60 */ { do_umask, "umask" },
 965   /* 61 */ { 0, "chroot" },
 966   { 0, }, /* 62 is old fstat */
 967   { 0, }, /* 63 is old getkerninfo */
 968   { 0, }, /* 64 is old getpagesize */
 969   /* 65 */ { 0, "msync" },
 970   /* 66 */ { 0, "vfork" },
 971   { 0, }, /* 67 is obsolete vread */
 972   { 0, }, /* 68 is obsolete vwrite */
 973   /* 69 */ { 0, "sbrk" },
 974   /* 70 */ { 0, "sstk" },
 975   { 0, }, /* 71 is old mmap */
 976   /* 72 */ { 0, "vadvise" },
 977   /* 73 */ { 0, "munmap" },
 978   /* 74 */ { 0, "mprotect" },
 979   /* 75 */ { 0, "madvise" },
 980   { 0, }, /* 76 is obsolete vhangup */
 981   { 0, }, /* 77 is obsolete vlimit */
 982   /* 78 */ { 0, "mincore" },
 983   /* 79 */ { 0, "getgroups" },
 984   /* 80 */ { 0, "setgroups" },
 985   /* 81 */ { 0, "getpgrp" },
 986   /* 82 */ { 0, "setpgid" },
 987   /* 83 */ { 0, "setitimer" },
 988   { 0, }, /* 84 is old wait */
 989   /* 85 */ { 0, "swapon" },
 990   /* 86 */ { 0, "getitimer" },
 991   { 0, }, /* 87 is old gethostname */
 992   { 0, }, /* 88 is old sethostname */
 993   { 0, }, /* 89 is old getdtablesize */
 994   { do_dup2, "dup2" },
 995   { 0, }, /* 91 */
 996   /* 92 */ { do_fcntl, "fcntl" },
 997   /* 93 */ { 0, "select" },
 998   { 0, }, /* 94 */
 999   /* 95 */ { 0, "fsync" },
1000   /* 96 */ { 0, "setpriority" },
1001   /* 97 */ { 0, "socket" },
1002   /* 98 */ { 0, "connect" },
1003   { 0, }, /* 99 is old accept */
1004   /* 100 */ { 0, "getpriority" },
1005   { 0, }, /* 101 is old send */
1006   { 0, }, /* 102 is old recv */
1007   /* 103 */ { 0, "sigreturn" },
1008   /* 104 */ { 0, "bind" },
1009   /* 105 */ { 0, "setsockopt" },
1010   /* 106 */ { 0, "listen" },
1011   { 0, }, /* 107 is obsolete vtimes */
1012   { 0, }, /* 108 is old sigvec */
1013   { 0, }, /* 109 is old sigblock */
1014   { 0, }, /* 110 is old sigsetmask */
1015   /* 111 */ { 0, "sigsuspend" },
1016   { 0, }, /* 112 is old sigstack */
1017   { 0, }, /* 113 is old recvmsg */
1018   { 0, }, /* 114 is old sendmsg */
1019   /* - is obsolete vtrace */ { 0, "vtrace       115" },
1020   /* 116 */ { do_gettimeofday, "gettimeofday" },
1021   /* 117 */ { do_getrusage, "getrusage" },
1022   /* 118 */ { 0, "getsockopt" },
1023   /* 119 */ { 0, "resuba" },
1024   /* 120 */ { 0, "readv" },
1025   /* 121 */ { 0, "writev" },
1026   /* 122 */ { 0, "settimeofday" },
1027   /* 123 */ { 0, "fchown" },
1028   /* 124 */ { 0, "fchmod" },
1029   { 0, }, /* 125 is old recvfrom */
1030   { 0, }, /* 126 is old setreuid */
1031   { 0, }, /* 127 is old setregid */
1032   /* 128 */ { 0, "rename" },
1033   { 0, }, /* 129 is old truncate */
1034   { 0, }, /* 130 is old ftruncate */
1035   /* 131 */ { 0, "flock" },
1036   /* 132 */ { 0, "mkfifo" },
1037   /* 133 */ { 0, "sendto" },
1038   /* 134 */ { 0, "shutdown" },
1039   /* 135 */ { 0, "socketpair" },
1040   /* 136 */ { 0, "mkdir" },
1041   /* 137 */ { 0, "rmdir" },
1042   /* 138 */ { 0, "utimes" },
1043   { 0, }, /* 139 is obsolete 4.2 sigreturn */
1044   /* 140 */ { 0, "adjtime" },
1045   { 0, }, /* 141 is old getpeername */
1046   { 0, }, /* 142 is old gethostid */
1047   { 0, }, /* 143 is old sethostid */
1048   { 0, }, /* 144 is old getrlimit */
1049   { 0, }, /* 145 is old setrlimit */
1050   { 0, }, /* 146 is old killpg */
1051   /* 147 */ { 0, "setsid" },
1052   /* 148 */ { 0, "quotactl" },
1053   { 0, }, /* 149 is old quota */
1054   { 0, }, /* 150 is old getsockname */
1055   { 0, }, /* 151 */
1056   { 0, }, /* 152 */
1057   { 0, }, /* 153 */
1058   { 0, }, /* 154 */
1059   /* 155 */ { 0, "nfssvc" },
1060   { 0, }, /* 156 is old getdirentries */
1061   /* 157 */ { 0, "statfs" },
1062   /* 158 */ { do_fstatfs, "fstatfs" },
1063   { 0, }, /* 159 */
1064   { 0, }, /* 160 */
1065   /* 161 */ { 0, "getfh" },
1066   { 0, }, /* 162 is old getdomainname */
1067   { 0, }, /* 163 is old setdomainname */
1068   { 0, }, /* 164 is old uname */
1069   /* 165 */ { 0, "sysarch" },
1070   { 0, }, /* 166 */
1071   { 0, }, /* 167 */
1072   { 0, }, /* 168 */
1073   /* 169 */ { 0, "semsys" },
1074   /* 170 */ { 0, "msgsys" },
1075   /* 171 */ { 0, "shmsys" },
1076   { 0, }, /* 172 */
1077   { 0, }, /* 173 */
1078   { 0, }, /* 174 */
1079   { 0, }, /* 175 */
1080   { 0, }, /* 176 */
1081   { 0, }, /* 177 */
1082   { 0, }, /* 178 */
1083   { 0, }, /* 179 */
1084   { 0, }, /* 180 */
1085   /* 181 */ { 0, "setgid" },
1086   /* 182 */ { 0, "setegid" },
1087   /* 183 */ { 0, "seteuid" },
1088   /* 184 */ { 0, "lfs_bmapv" },
1089   /* 185 */ { 0, "lfs_markv" },
1090   /* 186 */ { 0, "lfs_segclean" },
1091   /* 187 */ { 0, "lfs_segwait" },
1092   /* 188 */ { do_stat, "stat" },
1093   /* 189 */ { do_fstat, "fstat" },
1094   /* 190 */ { do_lstat, "lstat" },
1095   /* 191 */ { 0, "pathconf" },
1096   /* 192 */ { 0, "fpathconf" },
1097   { 0, }, /* 193 */
1098   /* 194 */ { 0, "getrlimit" },
1099   /* 195 */ { 0, "setrlimit" },
1100   /* 196 */ { do_getdirentries, "getdirentries" },
1101   /* 197 */ { 0, "mmap" },
1102   /* 198 */ { do___syscall, "__syscall" },
1103   /* 199 */ { do_lseek, "lseek" },
1104   /* 200 */ { 0, "truncate" },
1105   /* 201 */ { 0, "ftruncate" },
1106   /* 202 */ { do___sysctl, "__sysctl" },
1107   /* 203 */ { 0, "mlock" },
1108   /* 204 */ { 0, "munlock" },
1109 };
1110
1111 static char *(netbsd_error_names[]) = {
1112   /* 0 */ "ESUCCESS",
1113   /* 1 */ "EPERM",
1114   /* 2 */ "ENOENT",
1115   /* 3 */ "ESRCH",
1116   /* 4 */ "EINTR",
1117   /* 5 */ "EIO",
1118   /* 6 */ "ENXIO",
1119   /* 7 */ "E2BIG",
1120   /* 8 */ "ENOEXEC",
1121   /* 9 */ "EBADF",
1122   /* 10 */ "ECHILD",
1123   /* 11 */ "EDEADLK",
1124   /* 12 */ "ENOMEM",
1125   /* 13 */ "EACCES",
1126   /* 14 */ "EFAULT",
1127   /* 15 */ "ENOTBLK",
1128   /* 16 */ "EBUSY",
1129   /* 17 */ "EEXIST",
1130   /* 18 */ "EXDEV",
1131   /* 19 */ "ENODEV",
1132   /* 20 */ "ENOTDIR",
1133   /* 21 */ "EISDIR",
1134   /* 22 */ "EINVAL",
1135   /* 23 */ "ENFILE",
1136   /* 24 */ "EMFILE",
1137   /* 25 */ "ENOTTY",
1138   /* 26 */ "ETXTBSY",
1139   /* 27 */ "EFBIG",
1140   /* 28 */ "ENOSPC",
1141   /* 29 */ "ESPIPE",
1142   /* 30 */ "EROFS",
1143   /* 31 */ "EMLINK",
1144   /* 32 */ "EPIPE",
1145   /* 33 */ "EDOM",
1146   /* 34 */ "ERANGE",
1147   /* 35 */ "EAGAIN",
1148   /* 36 */ "EINPROGRESS",
1149   /* 37 */ "EALREADY",
1150   /* 38 */ "ENOTSOCK",
1151   /* 39 */ "EDESTADDRREQ",
1152   /* 40 */ "EMSGSIZE",
1153   /* 41 */ "EPROTOTYPE",
1154   /* 42 */ "ENOPROTOOPT",
1155   /* 43 */ "EPROTONOSUPPORT",
1156   /* 44 */ "ESOCKTNOSUPPORT",
1157   /* 45 */ "EOPNOTSUPP",
1158   /* 46 */ "EPFNOSUPPORT",
1159   /* 47 */ "EAFNOSUPPORT",
1160   /* 48 */ "EADDRINUSE",
1161   /* 49 */ "EADDRNOTAVAIL",
1162   /* 50 */ "ENETDOWN",
1163   /* 51 */ "ENETUNREACH",
1164   /* 52 */ "ENETRESET",
1165   /* 53 */ "ECONNABORTED",
1166   /* 54 */ "ECONNRESET",
1167   /* 55 */ "ENOBUFS",
1168   /* 56 */ "EISCONN",
1169   /* 57 */ "ENOTCONN",
1170   /* 58 */ "ESHUTDOWN",
1171   /* 59 */ "ETOOMANYREFS",
1172   /* 60 */ "ETIMEDOUT",
1173   /* 61 */ "ECONNREFUSED",
1174   /* 62 */ "ELOOP",
1175   /* 63 */ "ENAMETOOLONG",
1176   /* 64 */ "EHOSTDOWN",
1177   /* 65 */ "EHOSTUNREACH",
1178   /* 66 */ "ENOTEMPTY",
1179   /* 67 */ "EPROCLIM",
1180   /* 68 */ "EUSERS",
1181   /* 69 */ "EDQUOT",
1182   /* 70 */ "ESTALE",
1183   /* 71 */ "EREMOTE",
1184   /* 72 */ "EBADRPC",
1185   /* 73 */ "ERPCMISMATCH",
1186   /* 74 */ "EPROGUNAVAIL",
1187   /* 75 */ "EPROGMISMATCH",
1188   /* 76 */ "EPROCUNAVAIL",
1189   /* 77 */ "ENOLCK",
1190   /* 78 */ "ENOSYS",
1191   /* 79 */ "EFTYPE",
1192   /* 80 */ "EAUTH",
1193   /* 81 */ "ENEEDAUTH",
1194   /* 81 */ "ELAST",
1195 };
1196
1197 static char *(netbsd_signal_names[]) = {
1198   /* 0 */ 0,
1199   /* 1 */ "SIGHUP",
1200   /* 2 */ "SIGINT",
1201   /* 3 */ "SIGQUIT",
1202   /* 4 */ "SIGILL",
1203   /* 5 */ "SIGTRAP",
1204   /* 6 */ "SIGABRT",
1205   /* 7 */ "SIGEMT",
1206   /* 8 */ "SIGFPE",
1207   /* 9 */ "SIGKILL",
1208   /* 10 */ "SIGBUS",
1209   /* 11 */ "SIGSEGV",
1210   /* 12 */ "SIGSYS",
1211   /* 13 */ "SIGPIPE",
1212   /* 14 */ "SIGALRM",
1213   /* 15 */ "SIGTERM",
1214   /* 16 */ "SIGURG",
1215   /* 17 */ "SIGSTOP",
1216   /* 18 */ "SIGTSTP",
1217   /* 19 */ "SIGCONT",
1218   /* 20 */ "SIGCHLD",
1219   /* 21 */ "SIGTTIN",
1220   /* 22 */ "SIGTTOU",
1221   /* 23 */ "SIGIO",
1222   /* 24 */ "SIGXCPU",
1223   /* 25 */ "SIGXFSZ",
1224   /* 26 */ "SIGVTALRM",
1225   /* 27 */ "SIGPROF",
1226   /* 28 */ "SIGWINCH",
1227   /* 29 */ "SIGINFO",
1228   /* 30 */ "SIGUSR1",
1229   /* 31 */ "SIGUSR2",
1230 };
1231
1232 static emul_syscall emul_netbsd_syscalls = {
1233   netbsd_descriptors,
1234   sizeof(netbsd_descriptors) / sizeof(netbsd_descriptors[0]),
1235   netbsd_error_names,
1236   sizeof(netbsd_error_names) / sizeof(netbsd_error_names[0]),
1237   netbsd_signal_names,
1238   sizeof(netbsd_signal_names) / sizeof(netbsd_signal_names[0]),
1239 };
1240
1241
1242 /* NetBSD's os_emul interface, most are just passed on to the generic
1243    syscall stuff */
1244
1245 static os_emul_data *
1246 emul_netbsd_create(device *root,
1247                    bfd *image,
1248                    const char *name)
1249 {
1250   unsigned_word top_of_stack;
1251   unsigned stack_size;
1252   int elf_binary;
1253   os_emul_data *bsd_data;
1254   device *vm;
1255
1256   /* check that this emulation is really for us */
1257   if (name != NULL && strcmp(name, "netbsd") != 0)
1258     return NULL;
1259   if (image == NULL)
1260     return NULL;
1261
1262
1263   /* merge any emulation specific entries into the device tree */
1264
1265   /* establish a few defaults */
1266   if (image->xvec->flavour == bfd_target_elf_flavour) {
1267     elf_binary = 1;
1268     top_of_stack = 0xe0000000;
1269     stack_size =   0x00100000;
1270   }
1271   else {
1272     elf_binary = 0;
1273     top_of_stack = 0x20000000;
1274     stack_size =   0x00100000;
1275   }
1276
1277   /* options */
1278   emul_add_tree_options(root, image, "netbsd",
1279                         (WITH_ENVIRONMENT == USER_ENVIRONMENT
1280                          ? "user" : "virtual"));
1281
1282   /* virtual memory - handles growth of stack/heap */
1283   vm = device_tree_add_parsed(root, "/openprom/vm@0x%lx",
1284                               (unsigned long)(top_of_stack - stack_size));
1285   device_tree_add_parsed(vm, "./stack-base 0x%lx",
1286                          (unsigned long)(top_of_stack - stack_size));
1287   device_tree_add_parsed(vm, "./nr-bytes 0x%x", stack_size);
1288
1289   device_tree_add_parsed(root, "/openprom/vm/map-binary/file-name %s",
1290                          bfd_get_filename(image));
1291
1292   /* finish the init */
1293   device_tree_add_parsed(root, "/openprom/init/register/pc 0x%lx",
1294                          (unsigned long)bfd_get_start_address(image));
1295   device_tree_add_parsed(root, "/openprom/init/register/sp 0x%lx",
1296                          (unsigned long)top_of_stack);
1297   device_tree_add_parsed(root, "/openprom/init/register/msr 0x%x",
1298                          (device_find_boolean_property(root, "/options/little-endian?")
1299                           ? msr_little_endian_mode
1300                           : 0));
1301   device_tree_add_parsed(root, "/openprom/init/stack/stack-type %s",
1302                          (elf_binary ? "elf" : "xcoff"));
1303
1304   /* finally our emulation data */
1305   bsd_data = ZALLOC(os_emul_data);
1306   bsd_data->vm = vm;
1307   bsd_data->syscalls = &emul_netbsd_syscalls;
1308   return bsd_data;
1309 }
1310
1311 static void
1312 emul_netbsd_init(os_emul_data *emul_data,
1313                  int nr_cpus)
1314 {
1315   /* nothing yet */
1316 }
1317
1318 static void
1319 emul_netbsd_system_call(cpu *processor,
1320                         unsigned_word cia,
1321                         os_emul_data *emul_data)
1322 {
1323   emul_do_system_call(emul_data,
1324                       emul_data->syscalls,
1325                       cpu_registers(processor)->gpr[0],
1326                       3, /*r3 contains arg0*/
1327                       processor,
1328                       cia);
1329 }
1330
1331 const os_emul emul_netbsd = {
1332   "netbsd",
1333   emul_netbsd_create,
1334   emul_netbsd_init,
1335   emul_netbsd_system_call,
1336   0, /*instruction_call*/
1337   0 /*data*/
1338 };
1339
1340 #endif _EMUL_NETBSD_C_