binutils/sysdump.c

   1 /* Sysroff object format dumper.
   2    Copyright 1994, 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GNU Binutils.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  20    02110-1301, USA.  */
  21
  22
  23 /* Written by Steve Chamberlain <sac@cygnus.com>.
  24
  25  This program reads a SYSROFF object file and prints it in an
  26  almost human readable form to stdout.  */
  27
  28 #include "sysdep.h"
  29 #include "bfd.h"
  30 #include "safe-ctype.h"
  31 #include "libiberty.h"
  32 #include "getopt.h"
  33 #include "bucomm.h"
  34 #include "sysroff.h"
  35
  36 static int dump = 1;
  37 static int segmented_p;
  38 static int code;
  39 static int addrsize = 4;
  40 static FILE *file;
  41
  42 static void dh (unsigned char *, int);
  43 static void itheader (char *, int);
  44 static void p (void);
  45 static void tabout (void);
  46 static void pbarray (barray *);
  47 static int getone (int);
  48 static int opt (int);
  49 static void must (int);
  50 static void tab (int, char *);
  51 static void dump_symbol_info (void);
  52 static void derived_type (void);
  53 static void module (void);
  54 static void show_usage (FILE *, int);
  55
  56 extern int main (int, char **);
  57
  58 static char *
  59 getCHARS (unsigned char *ptr, int *idx, int size, int max)
  60 {
  61   int oc = *idx / 8;
  62   char *r;
  63   int b = size;
  64
  65   if (b >= max)
  66     return "*undefined*";
  67
  68   if (b == 0)
  69     {
  70       /* Got to work out the length of the string from self.  */
  71       b = ptr[oc++];
  72       (*idx) += 8;
  73     }
  74
  75   *idx += b * 8;
  76   r = xcalloc (b + 1, 1);
  77   memcpy (r, ptr + oc, b);
  78   r[b] = 0;
  79
  80   return r;
  81 }
  82
  83 static void
  84 dh (unsigned char *ptr, int size)
  85 {
  86   int i;
  87   int j;
  88   int span = 16;
  89
  90   printf ("\n************************************************************\n");
  91
  92   for (i = 0; i < size; i += span)
  93     {
  94       for (j = 0; j < span; j++)
  95         {
  96           if (j + i < size)
  97             printf ("%02x ", ptr[i + j]);
  98           else
  99             printf ("   ");
 100         }
 101
 102       for (j = 0; j < span && j + i < size; j++)
 103         {
 104           int c = ptr[i + j];
 105
 106           if (c < 32 || c > 127)
 107             c = '.';
 108           printf ("%c", c);
 109         }
 110
 111       printf ("\n");
 112     }
 113 }
 114
 115 static int
 116 fillup (unsigned char *ptr)
 117 {
 118   int size;
 119   int sum;
 120   int i;
 121
 122   size = getc (file) - 2;
 123   fread (ptr, 1, size, file);
 124   sum = code + size + 2;
 125
 126   for (i = 0; i < size; i++)
 127     sum += ptr[i];
 128
 129   if ((sum & 0xff) != 0xff)
 130     printf ("SUM IS %x\n", sum);
 131
 132   if (dump)
 133     dh (ptr, size);
 134
 135   return size - 1;
 136 }
 137
 138 static barray
 139 getBARRAY (unsigned char *ptr, int *idx, int dsize ATTRIBUTE_UNUSED,
 140            int max ATTRIBUTE_UNUSED)
 141 {
 142   barray res;
 143   int i;
 144   int byte = *idx / 8;
 145   int size = ptr[byte++];
 146
 147   res.len = size;
 148   res.data = (unsigned char *) xmalloc (size);
 149
 150   for (i = 0; i < size; i++)
 151     res.data[i] = ptr[byte++];
 152
 153   return res;
 154 }
 155
 156 static int
 157 getINT (unsigned char *ptr, int *idx, int size, int max)
 158 {
 159   int n = 0;
 160   int byte = *idx / 8;
 161
 162   if (byte >= max)
 163     return 0;
 164
 165   if (size == -2)
 166     size = addrsize;
 167
 168   if (size == -1)
 169     size = 0;
 170
 171   switch (size)
 172     {
 173     case 0:
 174       return 0;
 175     case 1:
 176       n = (ptr[byte]);
 177       break;
 178     case 2:
 179       n = (ptr[byte + 0] << 8) + ptr[byte + 1];
 180       break;
 181     case 4:
 182       n = (ptr[byte + 0] << 24) + (ptr[byte + 1] << 16) + (ptr[byte + 2] << 8) + (ptr[byte + 3]);
 183       break;
 184     default:
 185       abort ();
 186     }
 187
 188   *idx += size * 8;
 189   return n;
 190 }
 191
 192 static int
 193 getBITS (unsigned char *ptr, int *idx, int size, int max)
 194 {
 195   int byte = *idx / 8;
 196   int bit = *idx % 8;
 197
 198   if (byte >= max)
 199     return 0;
 200
 201   *idx += size;
 202
 203   return (ptr[byte] >> (8 - bit - size)) & ((1 << size) - 1);
 204 }
 205
 206 static void
 207 itheader (char *name, int code)
 208 {
 209   printf ("\n%s 0x%02x\n", name, code);
 210 }
 211
 212 static int indent;
 213
 214 static void
 215 p (void)
 216 {
 217   int i;
 218
 219   for (i = 0; i < indent; i++)
 220     printf ("| ");
 221
 222   printf ("> ");
 223 }
 224
 225 static void
 226 tabout (void)
 227 {
 228   p ();
 229 }
 230
 231 static void
 232 pbarray (barray *y)
 233 {
 234   int x;
 235
 236   printf ("%d (", y->len);
 237
 238   for (x = 0; x < y->len; x++)
 239     printf ("(%02x %c)", y->data[x],
 240             ISPRINT (y->data[x]) ? y->data[x] : '.');
 241
 242   printf (")\n");
 243 }
 244
 245 #define SYSROFF_PRINT
 246 #define SYSROFF_SWAP_IN
 247
 248 #include "sysroff.c"
 249
 250 /* FIXME: sysinfo, which generates sysroff.[ch] from sysroff.info, can't
 251    hack the special case of the tr block, which has no contents.  So we
 252    implement our own functions for reading in and printing out the tr
 253    block.  */
 254
 255 #define IT_tr_CODE      0x7f
 256
 257 static void
 258 sysroff_swap_tr_in (void)
 259 {
 260   unsigned char raw[255];
 261
 262   memset (raw, 0, 255);
 263   fillup (raw);
 264 }
 265
 266 static void
 267 sysroff_print_tr_out (void)
 268 {
 269   itheader ("tr", IT_tr_CODE);
 270 }
 271
 272 static int
 273 getone (int type)
 274 {
 275   int c = getc (file);
 276
 277   code = c;
 278
 279   if ((c & 0x7f) != type)
 280     {
 281       ungetc (c, file);
 282       return 0;
 283     }
 284
 285   switch (c & 0x7f)
 286     {
 287     case IT_cs_CODE:
 288       {
 289         struct IT_cs dummy;
 290         sysroff_swap_cs_in (&dummy);
 291         sysroff_print_cs_out (&dummy);
 292       }
 293       break;
 294
 295     case IT_dln_CODE:
 296       {
 297         struct IT_dln dummy;
 298         sysroff_swap_dln_in (&dummy);
 299         sysroff_print_dln_out (&dummy);
 300       }
 301       break;
 302
 303     case IT_hd_CODE:
 304       {
 305         struct IT_hd dummy;
 306         sysroff_swap_hd_in (&dummy);
 307         addrsize = dummy.afl;
 308         sysroff_print_hd_out (&dummy);
 309       }
 310       break;
 311
 312     case IT_dar_CODE:
 313       {
 314         struct IT_dar dummy;
 315         sysroff_swap_dar_in (&dummy);
 316         sysroff_print_dar_out (&dummy);
 317       }
 318       break;
 319
 320     case IT_dsy_CODE:
 321       {
 322         struct IT_dsy dummy;
 323         sysroff_swap_dsy_in (&dummy);
 324         sysroff_print_dsy_out (&dummy);
 325       }
 326       break;
 327
 328     case IT_dfp_CODE:
 329       {
 330         struct IT_dfp dummy;
 331         sysroff_swap_dfp_in (&dummy);
 332         sysroff_print_dfp_out (&dummy);
 333       }
 334       break;
 335
 336     case IT_dso_CODE:
 337       {
 338         struct IT_dso dummy;
 339         sysroff_swap_dso_in (&dummy);
 340         sysroff_print_dso_out (&dummy);
 341       }
 342       break;
 343
 344     case IT_dpt_CODE:
 345       {
 346         struct IT_dpt dummy;
 347         sysroff_swap_dpt_in (&dummy);
 348         sysroff_print_dpt_out (&dummy);
 349       }
 350       break;
 351
 352     case IT_den_CODE:
 353       {
 354         struct IT_den dummy;
 355         sysroff_swap_den_in (&dummy);
 356         sysroff_print_den_out (&dummy);
 357       }
 358       break;
 359
 360     case IT_dbt_CODE:
 361       {
 362         struct IT_dbt dummy;
 363         sysroff_swap_dbt_in (&dummy);
 364         sysroff_print_dbt_out (&dummy);
 365       }
 366       break;
 367
 368     case IT_dty_CODE:
 369       {
 370         struct IT_dty dummy;
 371         sysroff_swap_dty_in (&dummy);
 372         sysroff_print_dty_out (&dummy);
 373       }
 374       break;
 375
 376     case IT_un_CODE:
 377       {
 378         struct IT_un dummy;
 379         sysroff_swap_un_in (&dummy);
 380         sysroff_print_un_out (&dummy);
 381       }
 382       break;
 383
 384     case IT_sc_CODE:
 385       {
 386         struct IT_sc dummy;
 387         sysroff_swap_sc_in (&dummy);
 388         sysroff_print_sc_out (&dummy);
 389       }
 390       break;
 391
 392     case IT_er_CODE:
 393       {
 394         struct IT_er dummy;
 395         sysroff_swap_er_in (&dummy);
 396         sysroff_print_er_out (&dummy);
 397       }
 398       break;
 399
 400     case IT_ed_CODE:
 401       {
 402         struct IT_ed dummy;
 403         sysroff_swap_ed_in (&dummy);
 404         sysroff_print_ed_out (&dummy);
 405       }
 406       break;
 407
 408     case IT_sh_CODE:
 409       {
 410         struct IT_sh dummy;
 411         sysroff_swap_sh_in (&dummy);
 412         sysroff_print_sh_out (&dummy);
 413       }
 414       break;
 415
 416     case IT_ob_CODE:
 417       {
 418         struct IT_ob dummy;
 419         sysroff_swap_ob_in (&dummy);
 420         sysroff_print_ob_out (&dummy);
 421       }
 422       break;
 423
 424     case IT_rl_CODE:
 425       {
 426         struct IT_rl dummy;
 427         sysroff_swap_rl_in (&dummy);
 428         sysroff_print_rl_out (&dummy);
 429       }
 430       break;
 431
 432     case IT_du_CODE:
 433       {
 434         struct IT_du dummy;
 435         sysroff_swap_du_in (&dummy);
 436
 437         sysroff_print_du_out (&dummy);
 438       }
 439       break;
 440
 441     case IT_dus_CODE:
 442       {
 443         struct IT_dus dummy;
 444         sysroff_swap_dus_in (&dummy);
 445         sysroff_print_dus_out (&dummy);
 446       }
 447       break;
 448
 449     case IT_dul_CODE:
 450       {
 451         struct IT_dul dummy;
 452         sysroff_swap_dul_in (&dummy);
 453         sysroff_print_dul_out (&dummy);
 454       }
 455       break;
 456
 457     case IT_dss_CODE:
 458       {
 459         struct IT_dss dummy;
 460         sysroff_swap_dss_in (&dummy);
 461         sysroff_print_dss_out (&dummy);
 462       }
 463       break;
 464
 465     case IT_hs_CODE:
 466       {
 467         struct IT_hs dummy;
 468         sysroff_swap_hs_in (&dummy);
 469         sysroff_print_hs_out (&dummy);
 470       }
 471       break;
 472
 473     case IT_dps_CODE:
 474       {
 475         struct IT_dps dummy;
 476         sysroff_swap_dps_in (&dummy);
 477         sysroff_print_dps_out (&dummy);
 478       }
 479       break;
 480
 481     case IT_tr_CODE:
 482       sysroff_swap_tr_in ();
 483       sysroff_print_tr_out ();
 484       break;
 485
 486     case IT_dds_CODE:
 487       {
 488         struct IT_dds dummy;
 489
 490         sysroff_swap_dds_in (&dummy);
 491         sysroff_print_dds_out (&dummy);
 492       }
 493       break;
 494
 495     default:
 496       printf ("GOT A %x\n", c);
 497       return 0;
 498       break;
 499     }
 500
 501   return 1;
 502 }
 503
 504 static int
 505 opt (int x)
 506 {
 507   return getone (x);
 508 }
 509
 510 static void
 511 must (int x)
 512 {
 513   if (!getone (x))
 514     printf ("WANTED %x!!\n", x);
 515 }
 516
 517 static void
 518 tab (int i, char *s)
 519 {
 520   indent += i;
 521
 522   if (s)
 523     {
 524       p ();
 525       printf (s);
 526       printf ("\n");
 527     }
 528 }
 529
 530 static void
 531 dump_symbol_info (void)
 532 {
 533   tab (1, "SYMBOL INFO");
 534
 535   while (opt (IT_dsy_CODE))
 536     {
 537       if (opt (IT_dty_CODE))
 538         {
 539           must (IT_dbt_CODE);
 540           derived_type ();
 541           must (IT_dty_CODE);
 542         }
 543     }
 544
 545   tab (-1, "");
 546 }
 547
 548 static void
 549 derived_type (void)
 550 {
 551   tab (1, "DERIVED TYPE");
 552
 553   while (1)
 554     {
 555       if (opt (IT_dpp_CODE))
 556         {
 557           dump_symbol_info ();
 558           must (IT_dpp_CODE);
 559         }
 560       else if (opt (IT_dfp_CODE))
 561         {
 562           dump_symbol_info ();
 563           must (IT_dfp_CODE);
 564         }
 565       else if (opt (IT_den_CODE))
 566         {
 567           dump_symbol_info ();
 568           must (IT_den_CODE);
 569         }
 570       else if (opt (IT_den_CODE))
 571         {
 572           dump_symbol_info ();
 573           must (IT_den_CODE);
 574         }
 575       else if (opt (IT_dds_CODE))
 576         {
 577           dump_symbol_info ();
 578           must (IT_dds_CODE);
 579         }
 580       else if (opt (IT_dar_CODE))
 581         {
 582         }
 583       else if (opt (IT_dpt_CODE))
 584         {
 585         }
 586       else if (opt (IT_dul_CODE))
 587         {
 588         }
 589       else if (opt (IT_dse_CODE))
 590         {
 591         }
 592       else if (opt (IT_dot_CODE))
 593         {
 594         }
 595       else
 596         break;
 597     }
 598
 599   tab (-1, "");
 600 }
 601
 602 static void
 603 module (void)
 604 {
 605   int c = 0;
 606   int l = 0;
 607
 608   tab (1, "MODULE***\n");
 609
 610   do
 611     {
 612       c = getc (file);
 613       ungetc (c, file);
 614
 615       c &= 0x7f;
 616     }
 617   while (getone (c) && c != IT_tr_CODE);
 618
 619   tab (-1, "");
 620
 621   c = getc (file);
 622   while (c != EOF)
 623     {
 624       printf ("%02x ", c);
 625       l++;
 626       if (l == 32)
 627         {
 628           printf ("\n");
 629           l = 0;
 630         }
 631       c = getc (file);
 632     }
 633 }
 634
 635 char *program_name;
 636
 637 static void
 638 show_usage (FILE *file, int status)
 639 {
 640   fprintf (file, _("Usage: %s [option(s)] in-file\n"), program_name);
 641   fprintf (file, _("Print a human readable interpretation of a SYSROFF object file\n"));
 642   fprintf (file, _(" The options are:\n\
 643   -h --help        Display this information\n\
 644   -v --version     Print the program's version number\n"));
 645
 646   if (REPORT_BUGS_TO[0] && status == 0)
 647     fprintf (file, _("Report bugs to %s\n"), REPORT_BUGS_TO);
 648   exit (status);
 649 }
 650
 651 int
 652 main (int ac, char **av)
 653 {
 654   char *input_file = NULL;
 655   int opt;
 656   static struct option long_options[] =
 657   {
 658     {"help", no_argument, 0, 'h'},
 659     {"version", no_argument, 0, 'V'},
 660     {NULL, no_argument, 0, 0}
 661   };
 662
 663 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
 664   setlocale (LC_MESSAGES, "");
 665 #endif
 666 #if defined (HAVE_SETLOCALE)
 667   setlocale (LC_CTYPE, "");
 668 #endif
 669   bindtextdomain (PACKAGE, LOCALEDIR);
 670   textdomain (PACKAGE);
 671
 672   program_name = av[0];
 673   xmalloc_set_program_name (program_name);
 674
 675   expandargv (&ac, &av);
 676
 677   while ((opt = getopt_long (ac, av, "HhVv", long_options, (int *) NULL)) != EOF)
 678     {
 679       switch (opt)
 680         {
 681         case 'H':
 682         case 'h':
 683           show_usage (stdout, 0);
 684           /*NOTREACHED*/
 685         case 'v':
 686         case 'V':
 687           print_version ("sysdump");
 688           exit (0);
 689           /*NOTREACHED*/
 690         case 0:
 691           break;
 692         default:
 693           show_usage (stderr, 1);
 694           /*NOTREACHED*/
 695         }
 696     }
 697
 698   /* The input and output files may be named on the command line.  */
 699
 700   if (optind < ac)
 701     input_file = av[optind];
 702
 703   if (!input_file)
 704     fatal (_("no input file specified"));
 705
 706   file = fopen (input_file, FOPEN_RB);
 707
 708   if (!file)
 709     fatal (_("cannot open input file %s"), input_file);
 710
 711   module ();
 712   return 0;
 713 }