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 3 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);
 123   if (size == EOF
 124       || size <= 2)
 125     return 0;
 126
 127   size -= 2;
 128   if (fread (ptr, size, 1, file) != 1)
 129     return 0;
 130
 131   sum = code + size + 2;
 132
 133   for (i = 0; i < size; i++)
 134     sum += ptr[i];
 135
 136   if ((sum & 0xff) != 0xff)
 137     printf ("SUM IS %x\n", sum);
 138
 139   if (dump)
 140     dh (ptr, size);
 141
 142   return size;
 143 }
 144
 145 static barray
 146 getBARRAY (unsigned char *ptr, int *idx, int dsize ATTRIBUTE_UNUSED,
 147            int max ATTRIBUTE_UNUSED)
 148 {
 149   barray res;
 150   int i;
 151   int byte = *idx / 8;
 152   int size = ptr[byte++];
 153
 154   res.len = size;
 155   res.data = (unsigned char *) xmalloc (size);
 156
 157   for (i = 0; i < size; i++)
 158     res.data[i] = ptr[byte++];
 159
 160   return res;
 161 }
 162
 163 static int
 164 getINT (unsigned char *ptr, int *idx, int size, int max)
 165 {
 166   int n = 0;
 167   int byte = *idx / 8;
 168
 169   if (byte >= max)
 170     return 0;
 171
 172   if (size == -2)
 173     size = addrsize;
 174
 175   if (size == -1)
 176     size = 0;
 177
 178   switch (size)
 179     {
 180     case 0:
 181       return 0;
 182     case 1:
 183       n = (ptr[byte]);
 184       break;
 185     case 2:
 186       n = (ptr[byte + 0] << 8) + ptr[byte + 1];
 187       break;
 188     case 4:
 189       n = (ptr[byte + 0] << 24) + (ptr[byte + 1] << 16) + (ptr[byte + 2] << 8) + (ptr[byte + 3]);
 190       break;
 191     default:
 192       abort ();
 193     }
 194
 195   *idx += size * 8;
 196   return n;
 197 }
 198
 199 static int
 200 getBITS (unsigned char *ptr, int *idx, int size, int max)
 201 {
 202   int byte = *idx / 8;
 203   int bit = *idx % 8;
 204
 205   if (byte >= max)
 206     return 0;
 207
 208   *idx += size;
 209
 210   return (ptr[byte] >> (8 - bit - size)) & ((1 << size) - 1);
 211 }
 212
 213 static void
 214 itheader (char *name, int code)
 215 {
 216   printf ("\n%s 0x%02x\n", name, code);
 217 }
 218
 219 static int indent;
 220
 221 static void
 222 p (void)
 223 {
 224   int i;
 225
 226   for (i = 0; i < indent; i++)
 227     printf ("| ");
 228
 229   printf ("> ");
 230 }
 231
 232 static void
 233 tabout (void)
 234 {
 235   p ();
 236 }
 237
 238 static void
 239 pbarray (barray *y)
 240 {
 241   int x;
 242
 243   printf ("%d (", y->len);
 244
 245   for (x = 0; x < y->len; x++)
 246     printf ("(%02x %c)", y->data[x],
 247             ISPRINT (y->data[x]) ? y->data[x] : '.');
 248
 249   printf (")\n");
 250 }
 251
 252 #define SYSROFF_PRINT
 253 #define SYSROFF_SWAP_IN
 254
 255 #include "sysroff.c"
 256
 257 /* FIXME: sysinfo, which generates sysroff.[ch] from sysroff.info, can't
 258    hack the special case of the tr block, which has no contents.  So we
 259    implement our own functions for reading in and printing out the tr
 260    block.  */
 261
 262 #define IT_tr_CODE      0x7f
 263
 264 static void
 265 sysroff_swap_tr_in (void)
 266 {
 267   unsigned char raw[255];
 268
 269   memset (raw, 0, 255);
 270   fillup (raw);
 271 }
 272
 273 static void
 274 sysroff_print_tr_out (void)
 275 {
 276   itheader ("tr", IT_tr_CODE);
 277 }
 278
 279 static int
 280 getone (int type)
 281 {
 282   int c = getc (file);
 283
 284   code = c;
 285
 286   if ((c & 0x7f) != type)
 287     {
 288       ungetc (c, file);
 289       return 0;
 290     }
 291
 292   switch (c & 0x7f)
 293     {
 294     case IT_cs_CODE:
 295       {
 296         struct IT_cs dummy;
 297         sysroff_swap_cs_in (&dummy);
 298         sysroff_print_cs_out (&dummy);
 299       }
 300       break;
 301
 302     case IT_dln_CODE:
 303       {
 304         struct IT_dln dummy;
 305         sysroff_swap_dln_in (&dummy);
 306         sysroff_print_dln_out (&dummy);
 307       }
 308       break;
 309
 310     case IT_hd_CODE:
 311       {
 312         struct IT_hd dummy;
 313         sysroff_swap_hd_in (&dummy);
 314         addrsize = dummy.afl;
 315         sysroff_print_hd_out (&dummy);
 316       }
 317       break;
 318
 319     case IT_dar_CODE:
 320       {
 321         struct IT_dar dummy;
 322         sysroff_swap_dar_in (&dummy);
 323         sysroff_print_dar_out (&dummy);
 324       }
 325       break;
 326
 327     case IT_dsy_CODE:
 328       {
 329         struct IT_dsy dummy;
 330         sysroff_swap_dsy_in (&dummy);
 331         sysroff_print_dsy_out (&dummy);
 332       }
 333       break;
 334
 335     case IT_dfp_CODE:
 336       {
 337         struct IT_dfp dummy;
 338         sysroff_swap_dfp_in (&dummy);
 339         sysroff_print_dfp_out (&dummy);
 340       }
 341       break;
 342
 343     case IT_dso_CODE:
 344       {
 345         struct IT_dso dummy;
 346         sysroff_swap_dso_in (&dummy);
 347         sysroff_print_dso_out (&dummy);
 348       }
 349       break;
 350
 351     case IT_dpt_CODE:
 352       {
 353         struct IT_dpt dummy;
 354         sysroff_swap_dpt_in (&dummy);
 355         sysroff_print_dpt_out (&dummy);
 356       }
 357       break;
 358
 359     case IT_den_CODE:
 360       {
 361         struct IT_den dummy;
 362         sysroff_swap_den_in (&dummy);
 363         sysroff_print_den_out (&dummy);
 364       }
 365       break;
 366
 367     case IT_dbt_CODE:
 368       {
 369         struct IT_dbt dummy;
 370         sysroff_swap_dbt_in (&dummy);
 371         sysroff_print_dbt_out (&dummy);
 372       }
 373       break;
 374
 375     case IT_dty_CODE:
 376       {
 377         struct IT_dty dummy;
 378         sysroff_swap_dty_in (&dummy);
 379         sysroff_print_dty_out (&dummy);
 380       }
 381       break;
 382
 383     case IT_un_CODE:
 384       {
 385         struct IT_un dummy;
 386         sysroff_swap_un_in (&dummy);
 387         sysroff_print_un_out (&dummy);
 388       }
 389       break;
 390
 391     case IT_sc_CODE:
 392       {
 393         struct IT_sc dummy;
 394         sysroff_swap_sc_in (&dummy);
 395         sysroff_print_sc_out (&dummy);
 396       }
 397       break;
 398
 399     case IT_er_CODE:
 400       {
 401         struct IT_er dummy;
 402         sysroff_swap_er_in (&dummy);
 403         sysroff_print_er_out (&dummy);
 404       }
 405       break;
 406
 407     case IT_ed_CODE:
 408       {
 409         struct IT_ed dummy;
 410         sysroff_swap_ed_in (&dummy);
 411         sysroff_print_ed_out (&dummy);
 412       }
 413       break;
 414
 415     case IT_sh_CODE:
 416       {
 417         struct IT_sh dummy;
 418         sysroff_swap_sh_in (&dummy);
 419         sysroff_print_sh_out (&dummy);
 420       }
 421       break;
 422
 423     case IT_ob_CODE:
 424       {
 425         struct IT_ob dummy;
 426         sysroff_swap_ob_in (&dummy);
 427         sysroff_print_ob_out (&dummy);
 428       }
 429       break;
 430
 431     case IT_rl_CODE:
 432       {
 433         struct IT_rl dummy;
 434         sysroff_swap_rl_in (&dummy);
 435         sysroff_print_rl_out (&dummy);
 436       }
 437       break;
 438
 439     case IT_du_CODE:
 440       {
 441         struct IT_du dummy;
 442         sysroff_swap_du_in (&dummy);
 443
 444         sysroff_print_du_out (&dummy);
 445       }
 446       break;
 447
 448     case IT_dus_CODE:
 449       {
 450         struct IT_dus dummy;
 451         sysroff_swap_dus_in (&dummy);
 452         sysroff_print_dus_out (&dummy);
 453       }
 454       break;
 455
 456     case IT_dul_CODE:
 457       {
 458         struct IT_dul dummy;
 459         sysroff_swap_dul_in (&dummy);
 460         sysroff_print_dul_out (&dummy);
 461       }
 462       break;
 463
 464     case IT_dss_CODE:
 465       {
 466         struct IT_dss dummy;
 467         sysroff_swap_dss_in (&dummy);
 468         sysroff_print_dss_out (&dummy);
 469       }
 470       break;
 471
 472     case IT_hs_CODE:
 473       {
 474         struct IT_hs dummy;
 475         sysroff_swap_hs_in (&dummy);
 476         sysroff_print_hs_out (&dummy);
 477       }
 478       break;
 479
 480     case IT_dps_CODE:
 481       {
 482         struct IT_dps dummy;
 483         sysroff_swap_dps_in (&dummy);
 484         sysroff_print_dps_out (&dummy);
 485       }
 486       break;
 487
 488     case IT_tr_CODE:
 489       sysroff_swap_tr_in ();
 490       sysroff_print_tr_out ();
 491       break;
 492
 493     case IT_dds_CODE:
 494       {
 495         struct IT_dds dummy;
 496
 497         sysroff_swap_dds_in (&dummy);
 498         sysroff_print_dds_out (&dummy);
 499       }
 500       break;
 501
 502     default:
 503       printf ("GOT A %x\n", c);
 504       return 0;
 505       break;
 506     }
 507
 508   return 1;
 509 }
 510
 511 static int
 512 opt (int x)
 513 {
 514   return getone (x);
 515 }
 516
 517 static void
 518 must (int x)
 519 {
 520   if (!getone (x))
 521     printf ("WANTED %x!!\n", x);
 522 }
 523
 524 static void
 525 tab (int i, char *s)
 526 {
 527   indent += i;
 528
 529   if (s)
 530     {
 531       p ();
 532       puts (s);
 533     }
 534 }
 535
 536 static void
 537 dump_symbol_info (void)
 538 {
 539   tab (1, "SYMBOL INFO");
 540
 541   while (opt (IT_dsy_CODE))
 542     {
 543       if (opt (IT_dty_CODE))
 544         {
 545           must (IT_dbt_CODE);
 546           derived_type ();
 547           must (IT_dty_CODE);
 548         }
 549     }
 550
 551   tab (-1, "");
 552 }
 553
 554 static void
 555 derived_type (void)
 556 {
 557   tab (1, "DERIVED TYPE");
 558
 559   while (1)
 560     {
 561       if (opt (IT_dpp_CODE))
 562         {
 563           dump_symbol_info ();
 564           must (IT_dpp_CODE);
 565         }
 566       else if (opt (IT_dfp_CODE))
 567         {
 568           dump_symbol_info ();
 569           must (IT_dfp_CODE);
 570         }
 571       else if (opt (IT_den_CODE))
 572         {
 573           dump_symbol_info ();
 574           must (IT_den_CODE);
 575         }
 576       else if (opt (IT_den_CODE))
 577         {
 578           dump_symbol_info ();
 579           must (IT_den_CODE);
 580         }
 581       else if (opt (IT_dds_CODE))
 582         {
 583           dump_symbol_info ();
 584           must (IT_dds_CODE);
 585         }
 586       else if (opt (IT_dar_CODE))
 587         {
 588         }
 589       else if (opt (IT_dpt_CODE))
 590         {
 591         }
 592       else if (opt (IT_dul_CODE))
 593         {
 594         }
 595       else if (opt (IT_dse_CODE))
 596         {
 597         }
 598       else if (opt (IT_dot_CODE))
 599         {
 600         }
 601       else
 602         break;
 603     }
 604
 605   tab (-1, "");
 606 }
 607
 608 static void
 609 module (void)
 610 {
 611   int c = 0;
 612   int l = 0;
 613
 614   tab (1, "MODULE***\n");
 615
 616   do
 617     {
 618       c = getc (file);
 619       ungetc (c, file);
 620
 621       c &= 0x7f;
 622     }
 623   while (getone (c) && c != IT_tr_CODE);
 624
 625   tab (-1, "");
 626
 627   c = getc (file);
 628   while (c != EOF)
 629     {
 630       printf ("%02x ", c);
 631       l++;
 632       if (l == 32)
 633         {
 634           printf ("\n");
 635           l = 0;
 636         }
 637       c = getc (file);
 638     }
 639 }
 640
 641 char *program_name;
 642
 643 static void
 644 show_usage (FILE *file, int status)
 645 {
 646   fprintf (file, _("Usage: %s [option(s)] in-file\n"), program_name);
 647   fprintf (file, _("Print a human readable interpretation of a SYSROFF object file\n"));
 648   fprintf (file, _(" The options are:\n\
 649   -h --help        Display this information\n\
 650   -v --version     Print the program's version number\n"));
 651
 652   if (REPORT_BUGS_TO[0] && status == 0)
 653     fprintf (file, _("Report bugs to %s\n"), REPORT_BUGS_TO);
 654   exit (status);
 655 }
 656
 657 int
 658 main (int ac, char **av)
 659 {
 660   char *input_file = NULL;
 661   int opt;
 662   static struct option long_options[] =
 663   {
 664     {"help", no_argument, 0, 'h'},
 665     {"version", no_argument, 0, 'V'},
 666     {NULL, no_argument, 0, 0}
 667   };
 668
 669 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
 670   setlocale (LC_MESSAGES, "");
 671 #endif
 672 #if defined (HAVE_SETLOCALE)
 673   setlocale (LC_CTYPE, "");
 674 #endif
 675   bindtextdomain (PACKAGE, LOCALEDIR);
 676   textdomain (PACKAGE);
 677
 678   program_name = av[0];
 679   xmalloc_set_program_name (program_name);
 680
 681   expandargv (&ac, &av);
 682
 683   while ((opt = getopt_long (ac, av, "HhVv", long_options, (int *) NULL)) != EOF)
 684     {
 685       switch (opt)
 686         {
 687         case 'H':
 688         case 'h':
 689           show_usage (stdout, 0);
 690           /*NOTREACHED*/
 691         case 'v':
 692         case 'V':
 693           print_version ("sysdump");
 694           exit (0);
 695           /*NOTREACHED*/
 696         case 0:
 697           break;
 698         default:
 699           show_usage (stderr, 1);
 700           /*NOTREACHED*/
 701         }
 702     }
 703
 704   /* The input and output files may be named on the command line.  */
 705
 706   if (optind < ac)
 707     input_file = av[optind];
 708
 709   if (!input_file)
 710     fatal (_("no input file specified"));
 711
 712   file = fopen (input_file, FOPEN_RB);
 713
 714   if (!file)
 715     fatal (_("cannot open input file %s"), input_file);
 716
 717   module ();
 718   return 0;
 719 }