binutils/size.c

   1 /* size.c -- report size of various sections of an executable file.
   2    Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   3    2001, 2002, 2003, 2004, 2005, 2006, 2007 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 02110-1301, USA.  */
  20 \f
  21 /* Extensions/incompatibilities:
  22    o - BSD output has filenames at the end.
  23    o - BSD output can appear in different radicies.
  24    o - SysV output has less redundant whitespace.  Filename comes at end.
  25    o - SysV output doesn't show VMA which is always the same as the PMA.
  26    o - We also handle core files.
  27    o - We also handle archives.
  28    If you write shell scripts which manipulate this info then you may be
  29    out of luck; there's no --compatibility or --pedantic option.  */
  30
  31 #include "bfd.h"
  32 #include "bucomm.h"
  33 #include "libiberty.h"
  34 #include "getopt.h"
  35
  36 #ifndef BSD_DEFAULT
  37 #define BSD_DEFAULT 1
  38 #endif
  39
  40 /* Program options.  */
  41
  42 enum
  43   {
  44     decimal, octal, hex
  45   }
  46 radix = decimal;
  47
  48 /* 0 means use AT&T-style output.  */
  49 static int berkeley_format = BSD_DEFAULT;
  50
  51 int show_version = 0;
  52 int show_help = 0;
  53 int show_totals = 0;
  54
  55 static bfd_size_type total_bsssize;
  56 static bfd_size_type total_datasize;
  57 static bfd_size_type total_textsize;
  58
  59 /* Program exit status.  */
  60 int return_code = 0;
  61
  62 static char *target = NULL;
  63
  64 /* Static declarations.  */
  65
  66 static void usage (FILE *, int);
  67 static void display_file (char *);
  68 static void display_bfd (bfd *);
  69 static void display_archive (bfd *);
  70 static int size_number (bfd_size_type);
  71 static void rprint_number (int, bfd_size_type);
  72 static void print_berkeley_format (bfd *);
  73 static void sysv_internal_sizer (bfd *, asection *, void *);
  74 static void sysv_internal_printer (bfd *, asection *, void *);
  75 static void print_sysv_format (bfd *);
  76 static void print_sizes (bfd * file);
  77 static void berkeley_sum (bfd *, sec_ptr, void *);
  78 \f
  79 static void
  80 usage (FILE *stream, int status)
  81 {
  82   fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
  83   fprintf (stream, _(" Displays the sizes of sections inside binary files\n"));
  84   fprintf (stream, _(" If no input file(s) are specified, a.out is assumed\n"));
  85   fprintf (stream, _(" The options are:\n\
  86   -A|-B     --format={sysv|berkeley}  Select output style (default is %s)\n\
  87   -o|-d|-x  --radix={8|10|16}         Display numbers in octal, decimal or hex\n\
  88   -t        --totals                  Display the total sizes (Berkeley only)\n\
  89             --target=<bfdname>        Set the binary file format\n\
  90             @<file>                   Read options from <file>\n\
  91   -h        --help                    Display this information\n\
  92   -v        --version                 Display the program's version\n\
  93 \n"),
  94 #if BSD_DEFAULT
  95   "berkeley"
  96 #else
  97   "sysv"
  98 #endif
  99 );
 100   list_supported_targets (program_name, stream);
 101   if (REPORT_BUGS_TO[0] && status == 0)
 102     fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
 103   exit (status);
 104 }
 105
 106 static struct option long_options[] =
 107 {
 108   {"format", required_argument, 0, 200},
 109   {"radix", required_argument, 0, 201},
 110   {"target", required_argument, 0, 202},
 111   {"totals", no_argument, &show_totals, 1},
 112   {"version", no_argument, &show_version, 1},
 113   {"help", no_argument, &show_help, 1},
 114   {0, no_argument, 0, 0}
 115 };
 116
 117 int main (int, char **);
 118
 119 int
 120 main (int argc, char **argv)
 121 {
 122   int temp;
 123   int c;
 124
 125 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
 126   setlocale (LC_MESSAGES, "");
 127 #endif
 128 #if defined (HAVE_SETLOCALE)
 129   setlocale (LC_CTYPE, "");
 130 #endif
 131   bindtextdomain (PACKAGE, LOCALEDIR);
 132   textdomain (PACKAGE);
 133
 134   program_name = *argv;
 135   xmalloc_set_program_name (program_name);
 136
 137   expandargv (&argc, &argv);
 138
 139   bfd_init ();
 140   set_default_bfd_target ();
 141
 142   while ((c = getopt_long (argc, argv, "ABHhVvdfotx", long_options,
 143                            (int *) 0)) != EOF)
 144     switch (c)
 145       {
 146       case 200:         /* --format */
 147         switch (*optarg)
 148           {
 149           case 'B':
 150           case 'b':
 151             berkeley_format = 1;
 152             break;
 153           case 'S':
 154           case 's':
 155             berkeley_format = 0;
 156             break;
 157           default:
 158             non_fatal (_("invalid argument to --format: %s"), optarg);
 159             usage (stderr, 1);
 160           }
 161         break;
 162
 163       case 202:         /* --target */
 164         target = optarg;
 165         break;
 166
 167       case 201:         /* --radix */
 168 #ifdef ANSI_LIBRARIES
 169         temp = strtol (optarg, NULL, 10);
 170 #else
 171         temp = atol (optarg);
 172 #endif
 173         switch (temp)
 174           {
 175           case 10:
 176             radix = decimal;
 177             break;
 178           case 8:
 179             radix = octal;
 180             break;
 181           case 16:
 182             radix = hex;
 183             break;
 184           default:
 185             non_fatal (_("Invalid radix: %s\n"), optarg);
 186             usage (stderr, 1);
 187           }
 188         break;
 189
 190       case 'A':
 191         berkeley_format = 0;
 192         break;
 193       case 'B':
 194         berkeley_format = 1;
 195         break;
 196       case 'v':
 197       case 'V':
 198         show_version = 1;
 199         break;
 200       case 'd':
 201         radix = decimal;
 202         break;
 203       case 'x':
 204         radix = hex;
 205         break;
 206       case 'o':
 207         radix = octal;
 208         break;
 209       case 't':
 210         show_totals = 1;
 211         break;
 212       case 'f': /* FIXME : For sysv68, `-f' means `full format', i.e.
 213                    `[fname:] M(.text) + N(.data) + O(.bss) + P(.comment) = Q'
 214                    where `fname: ' appears only if there are >= 2 input files,
 215                    and M, N, O, P, Q are expressed in decimal by default,
 216                    hexa or octal if requested by `-x' or `-o'.
 217                    Just to make things interesting, Solaris also accepts -f,
 218                    which prints out the size of each allocatable section, the
 219                    name of the section, and the total of the section sizes.  */
 220                 /* For the moment, accept `-f' silently, and ignore it.  */
 221         break;
 222       case 0:
 223         break;
 224       case 'h':
 225       case 'H':
 226       case '?':
 227         usage (stderr, 1);
 228       }
 229
 230   if (show_version)
 231     print_version ("size");
 232   if (show_help)
 233     usage (stdout, 0);
 234
 235   if (optind == argc)
 236     display_file ("a.out");
 237   else
 238     for (; optind < argc;)
 239       display_file (argv[optind++]);
 240
 241   if (show_totals && berkeley_format)
 242     {
 243       bfd_size_type total = total_textsize + total_datasize + total_bsssize;
 244
 245       rprint_number (7, total_textsize);
 246       putchar('\t');
 247       rprint_number (7, total_datasize);
 248       putchar('\t');
 249       rprint_number (7, total_bsssize);
 250       printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 251               (unsigned long) total, (unsigned long) total);
 252       fputs ("(TOTALS)\n", stdout);
 253     }
 254
 255   return return_code;
 256 }
 257 \f
 258 /* Display stats on file or archive member ABFD.  */
 259
 260 static void
 261 display_bfd (bfd *abfd)
 262 {
 263   char **matching;
 264
 265   if (bfd_check_format (abfd, bfd_archive))
 266     /* An archive within an archive.  */
 267     return;
 268
 269   if (bfd_check_format_matches (abfd, bfd_object, &matching))
 270     {
 271       print_sizes (abfd);
 272       printf ("\n");
 273       return;
 274     }
 275
 276   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 277     {
 278       bfd_nonfatal (bfd_get_filename (abfd));
 279       list_matching_formats (matching);
 280       free (matching);
 281       return_code = 3;
 282       return;
 283     }
 284
 285   if (bfd_check_format_matches (abfd, bfd_core, &matching))
 286     {
 287       const char *core_cmd;
 288
 289       print_sizes (abfd);
 290       fputs (" (core file", stdout);
 291
 292       core_cmd = bfd_core_file_failing_command (abfd);
 293       if (core_cmd)
 294         printf (" invoked as %s", core_cmd);
 295
 296       puts (")\n");
 297       return;
 298     }
 299
 300   bfd_nonfatal (bfd_get_filename (abfd));
 301
 302   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 303     {
 304       list_matching_formats (matching);
 305       free (matching);
 306     }
 307
 308   return_code = 3;
 309 }
 310
 311 static void
 312 display_archive (bfd *file)
 313 {
 314   bfd *arfile = (bfd *) NULL;
 315   bfd *last_arfile = (bfd *) NULL;
 316
 317   for (;;)
 318     {
 319       bfd_set_error (bfd_error_no_error);
 320
 321       arfile = bfd_openr_next_archived_file (file, arfile);
 322       if (arfile == NULL)
 323         {
 324           if (bfd_get_error () != bfd_error_no_more_archived_files)
 325             {
 326               bfd_nonfatal (bfd_get_filename (file));
 327               return_code = 2;
 328             }
 329           break;
 330         }
 331
 332       display_bfd (arfile);
 333
 334       if (last_arfile != NULL)
 335         bfd_close (last_arfile);
 336       last_arfile = arfile;
 337     }
 338
 339   if (last_arfile != NULL)
 340     bfd_close (last_arfile);
 341 }
 342
 343 static void
 344 display_file (char *filename)
 345 {
 346   bfd *file;
 347
 348   if (get_file_size (filename) < 1)
 349     {
 350       return_code = 1;
 351       return;
 352     }
 353
 354   file = bfd_openr (filename, target);
 355   if (file == NULL)
 356     {
 357       bfd_nonfatal (filename);
 358       return_code = 1;
 359       return;
 360     }
 361
 362   if (bfd_check_format (file, bfd_archive))
 363     display_archive (file);
 364   else
 365     display_bfd (file);
 366
 367   if (!bfd_close (file))
 368     {
 369       bfd_nonfatal (filename);
 370       return_code = 1;
 371       return;
 372     }
 373 }
 374 \f
 375 /* This is what lexical functions are for.  */
 376
 377 static int
 378 size_number (bfd_size_type num)
 379 {
 380   char buffer[40];
 381
 382   sprintf (buffer,
 383            (radix == decimal ? "%lu" :
 384            ((radix == octal) ? "0%lo" : "0x%lx")),
 385            (unsigned long) num);
 386
 387   return strlen (buffer);
 388 }
 389
 390 static void
 391 rprint_number (int width, bfd_size_type num)
 392 {
 393   char buffer[40];
 394
 395   sprintf (buffer,
 396            (radix == decimal ? "%lu" :
 397            ((radix == octal) ? "0%lo" : "0x%lx")),
 398            (unsigned long) num);
 399
 400   printf ("%*s", width, buffer);
 401 }
 402
 403 static bfd_size_type bsssize;
 404 static bfd_size_type datasize;
 405 static bfd_size_type textsize;
 406
 407 static void
 408 berkeley_sum (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec,
 409               void *ignore ATTRIBUTE_UNUSED)
 410 {
 411   flagword flags;
 412   bfd_size_type size;
 413
 414   flags = bfd_get_section_flags (abfd, sec);
 415   if ((flags & SEC_ALLOC) == 0)
 416     return;
 417
 418   size = bfd_get_section_size (sec);
 419   if ((flags & SEC_CODE) != 0 || (flags & SEC_READONLY) != 0)
 420     textsize += size;
 421   else if ((flags & SEC_HAS_CONTENTS) != 0)
 422     datasize += size;
 423   else
 424     bsssize += size;
 425 }
 426
 427 static void
 428 print_berkeley_format (bfd *abfd)
 429 {
 430   static int files_seen = 0;
 431   bfd_size_type total;
 432
 433   bsssize = 0;
 434   datasize = 0;
 435   textsize = 0;
 436
 437   bfd_map_over_sections (abfd, berkeley_sum, NULL);
 438
 439   if (files_seen++ == 0)
 440     puts ((radix == octal) ? "   text\t   data\t    bss\t    oct\t    hex\tfilename" :
 441           "   text\t   data\t    bss\t    dec\t    hex\tfilename");
 442
 443   total = textsize + datasize + bsssize;
 444
 445   if (show_totals)
 446     {
 447       total_textsize += textsize;
 448       total_datasize += datasize;
 449       total_bsssize  += bsssize;
 450     }
 451
 452   rprint_number (7, textsize);
 453   putchar ('\t');
 454   rprint_number (7, datasize);
 455   putchar ('\t');
 456   rprint_number (7, bsssize);
 457   printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 458           (unsigned long) total, (unsigned long) total);
 459
 460   fputs (bfd_get_filename (abfd), stdout);
 461
 462   if (bfd_my_archive (abfd))
 463     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (abfd)));
 464 }
 465
 466 /* I REALLY miss lexical functions! */
 467 bfd_size_type svi_total = 0;
 468 bfd_vma svi_maxvma = 0;
 469 int svi_namelen = 0;
 470 int svi_vmalen = 0;
 471 int svi_sizelen = 0;
 472
 473 static void
 474 sysv_internal_sizer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 475                      void *ignore ATTRIBUTE_UNUSED)
 476 {
 477   bfd_size_type size = bfd_section_size (file, sec);
 478
 479   if (   ! bfd_is_abs_section (sec)
 480       && ! bfd_is_com_section (sec)
 481       && ! bfd_is_und_section (sec))
 482     {
 483       int namelen = strlen (bfd_section_name (file, sec));
 484
 485       if (namelen > svi_namelen)
 486         svi_namelen = namelen;
 487
 488       svi_total += size;
 489
 490       if (bfd_section_vma (file, sec) > svi_maxvma)
 491         svi_maxvma = bfd_section_vma (file, sec);
 492     }
 493 }
 494
 495 static void
 496 sysv_internal_printer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 497                        void *ignore ATTRIBUTE_UNUSED)
 498 {
 499   bfd_size_type size = bfd_section_size (file, sec);
 500
 501   if (   ! bfd_is_abs_section (sec)
 502       && ! bfd_is_com_section (sec)
 503       && ! bfd_is_und_section (sec))
 504     {
 505       svi_total += size;
 506
 507       printf ("%-*s   ", svi_namelen, bfd_section_name (file, sec));
 508       rprint_number (svi_sizelen, size);
 509       printf ("   ");
 510       rprint_number (svi_vmalen, bfd_section_vma (file, sec));
 511       printf ("\n");
 512     }
 513 }
 514
 515 static void
 516 print_sysv_format (bfd *file)
 517 {
 518   /* Size all of the columns.  */
 519   svi_total = 0;
 520   svi_maxvma = 0;
 521   svi_namelen = 0;
 522   bfd_map_over_sections (file, sysv_internal_sizer, NULL);
 523   svi_vmalen = size_number ((bfd_size_type)svi_maxvma);
 524
 525   if ((size_t) svi_vmalen < sizeof ("addr") - 1)
 526     svi_vmalen = sizeof ("addr")-1;
 527
 528   svi_sizelen = size_number (svi_total);
 529   if ((size_t) svi_sizelen < sizeof ("size") - 1)
 530     svi_sizelen = sizeof ("size")-1;
 531
 532   svi_total = 0;
 533   printf ("%s  ", bfd_get_filename (file));
 534
 535   if (bfd_my_archive (file))
 536     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (file)));
 537
 538   printf (":\n%-*s   %*s   %*s\n", svi_namelen, "section",
 539           svi_sizelen, "size", svi_vmalen, "addr");
 540
 541   bfd_map_over_sections (file, sysv_internal_printer, NULL);
 542
 543   printf ("%-*s   ", svi_namelen, "Total");
 544   rprint_number (svi_sizelen, svi_total);
 545   printf ("\n\n");
 546 }
 547
 548 static void
 549 print_sizes (bfd *file)
 550 {
 551   if (berkeley_format)
 552     print_berkeley_format (file);
 553   else
 554     print_sysv_format (file);
 555 }