binutils/size.c

   1 /* size.c -- report size of various sections of an executable file.
   2    Copyright (C) 1991-2014 Free Software Foundation, Inc.
   3
   4    This file is part of GNU Binutils.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    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 "sysdep.h"
  32 #include "bfd.h"
  33 #include "libiberty.h"
  34 #include "getopt.h"
  35 #include "bucomm.h"
  36
  37 #ifndef BSD_DEFAULT
  38 #define BSD_DEFAULT 1
  39 #endif
  40
  41 /* Program options.  */
  42
  43 static enum
  44   {
  45     decimal, octal, hex
  46   }
  47 radix = decimal;
  48
  49 /* 0 means use AT&T-style output.  */
  50 static int berkeley_format = BSD_DEFAULT;
  51
  52 static int show_version = 0;
  53 static int show_help = 0;
  54 static int show_totals = 0;
  55 static int show_common = 0;
  56
  57 static bfd_size_type common_size;
  58 static bfd_size_type total_bsssize;
  59 static bfd_size_type total_datasize;
  60 static bfd_size_type total_textsize;
  61
  62 /* Program exit status.  */
  63 static int return_code = 0;
  64
  65 static char *target = NULL;
  66
  67 /* Forward declarations.  */
  68
  69 static void display_file (char *);
  70 static void rprint_number (int, bfd_size_type);
  71 static void print_sizes (bfd * file);
  72 \f
  73 static void
  74 usage (FILE *stream, int status)
  75 {
  76   fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
  77   fprintf (stream, _(" Displays the sizes of sections inside binary files\n"));
  78   fprintf (stream, _(" If no input file(s) are specified, a.out is assumed\n"));
  79   fprintf (stream, _(" The options are:\n\
  80   -A|-B     --format={sysv|berkeley}  Select output style (default is %s)\n\
  81   -o|-d|-x  --radix={8|10|16}         Display numbers in octal, decimal or hex\n\
  82   -t        --totals                  Display the total sizes (Berkeley only)\n\
  83             --common                  Display total size for *COM* syms\n\
  84             --target=<bfdname>        Set the binary file format\n\
  85             @<file>                   Read options from <file>\n\
  86   -h        --help                    Display this information\n\
  87   -v        --version                 Display the program's version\n\
  88 \n"),
  89 #if BSD_DEFAULT
  90   "berkeley"
  91 #else
  92   "sysv"
  93 #endif
  94 );
  95   list_supported_targets (program_name, stream);
  96   if (REPORT_BUGS_TO[0] && status == 0)
  97     fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
  98   exit (status);
  99 }
 100
 101 #define OPTION_FORMAT (200)
 102 #define OPTION_RADIX (OPTION_FORMAT + 1)
 103 #define OPTION_TARGET (OPTION_RADIX + 1)
 104
 105 static struct option long_options[] =
 106 {
 107   {"common", no_argument, &show_common, 1},
 108   {"format", required_argument, 0, OPTION_FORMAT},
 109   {"radix", required_argument, 0, OPTION_RADIX},
 110   {"target", required_argument, 0, OPTION_TARGET},
 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 OPTION_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 OPTION_TARGET:
 164         target = optarg;
 165         break;
 166
 167       case OPTION_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 /* Total size required for common symbols in ABFD.  */
 259
 260 static void
 261 calculate_common_size (bfd *abfd)
 262 {
 263   asymbol **syms = NULL;
 264   long storage, symcount;
 265
 266   common_size = 0;
 267   if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC | HAS_SYMS)) != HAS_SYMS)
 268     return;
 269
 270   storage = bfd_get_symtab_upper_bound (abfd);
 271   if (storage < 0)
 272     bfd_fatal (bfd_get_filename (abfd));
 273   if (storage)
 274     syms = (asymbol **) xmalloc (storage);
 275
 276   symcount = bfd_canonicalize_symtab (abfd, syms);
 277   if (symcount < 0)
 278     bfd_fatal (bfd_get_filename (abfd));
 279
 280   while (--symcount >= 0)
 281     {
 282       asymbol *sym = syms[symcount];
 283
 284       if (bfd_is_com_section (sym->section)
 285           && (sym->flags & BSF_SECTION_SYM) == 0)
 286         common_size += sym->value;
 287     }
 288   free (syms);
 289 }
 290
 291 /* Display stats on file or archive member ABFD.  */
 292
 293 static void
 294 display_bfd (bfd *abfd)
 295 {
 296   char **matching;
 297
 298   if (bfd_check_format (abfd, bfd_archive))
 299     /* An archive within an archive.  */
 300     return;
 301
 302   if (bfd_check_format_matches (abfd, bfd_object, &matching))
 303     {
 304       print_sizes (abfd);
 305       printf ("\n");
 306       return;
 307     }
 308
 309   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 310     {
 311       bfd_nonfatal (bfd_get_filename (abfd));
 312       list_matching_formats (matching);
 313       free (matching);
 314       return_code = 3;
 315       return;
 316     }
 317
 318   if (bfd_check_format_matches (abfd, bfd_core, &matching))
 319     {
 320       const char *core_cmd;
 321
 322       print_sizes (abfd);
 323       fputs (" (core file", stdout);
 324
 325       core_cmd = bfd_core_file_failing_command (abfd);
 326       if (core_cmd)
 327         printf (" invoked as %s", core_cmd);
 328
 329       puts (")\n");
 330       return;
 331     }
 332
 333   bfd_nonfatal (bfd_get_filename (abfd));
 334
 335   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 336     {
 337       list_matching_formats (matching);
 338       free (matching);
 339     }
 340
 341   return_code = 3;
 342 }
 343
 344 static void
 345 display_archive (bfd *file)
 346 {
 347   bfd *arfile = (bfd *) NULL;
 348   bfd *last_arfile = (bfd *) NULL;
 349
 350   for (;;)
 351     {
 352       bfd_set_error (bfd_error_no_error);
 353
 354       arfile = bfd_openr_next_archived_file (file, arfile);
 355       if (arfile == NULL)
 356         {
 357           if (bfd_get_error () != bfd_error_no_more_archived_files)
 358             {
 359               bfd_nonfatal (bfd_get_filename (file));
 360               return_code = 2;
 361             }
 362           break;
 363         }
 364
 365       display_bfd (arfile);
 366
 367       if (last_arfile != NULL)
 368         bfd_close (last_arfile);
 369       last_arfile = arfile;
 370     }
 371
 372   if (last_arfile != NULL)
 373     bfd_close (last_arfile);
 374 }
 375
 376 static void
 377 display_file (char *filename)
 378 {
 379   bfd *file;
 380
 381   if (get_file_size (filename) < 1)
 382     {
 383       return_code = 1;
 384       return;
 385     }
 386
 387   file = bfd_openr (filename, target);
 388   if (file == NULL)
 389     {
 390       bfd_nonfatal (filename);
 391       return_code = 1;
 392       return;
 393     }
 394
 395   if (bfd_check_format (file, bfd_archive))
 396     display_archive (file);
 397   else
 398     display_bfd (file);
 399
 400   if (!bfd_close (file))
 401     {
 402       bfd_nonfatal (filename);
 403       return_code = 1;
 404       return;
 405     }
 406 }
 407 \f
 408 static int
 409 size_number (bfd_size_type num)
 410 {
 411   char buffer[40];
 412
 413   sprintf (buffer,
 414            (radix == decimal ? "%" BFD_VMA_FMT "u" :
 415            ((radix == octal) ? "0%" BFD_VMA_FMT "o" : "0x%" BFD_VMA_FMT "x")),
 416            num);
 417
 418   return strlen (buffer);
 419 }
 420
 421 static void
 422 rprint_number (int width, bfd_size_type num)
 423 {
 424   char buffer[40];
 425
 426   sprintf (buffer,
 427            (radix == decimal ? "%" BFD_VMA_FMT "u" :
 428            ((radix == octal) ? "0%" BFD_VMA_FMT "o" : "0x%" BFD_VMA_FMT "x")),
 429            num);
 430
 431   printf ("%*s", width, buffer);
 432 }
 433
 434 static bfd_size_type bsssize;
 435 static bfd_size_type datasize;
 436 static bfd_size_type textsize;
 437
 438 static void
 439 berkeley_sum (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec,
 440               void *ignore ATTRIBUTE_UNUSED)
 441 {
 442   flagword flags;
 443   bfd_size_type size;
 444
 445   flags = bfd_get_section_flags (abfd, sec);
 446   if ((flags & SEC_ALLOC) == 0)
 447     return;
 448
 449   size = bfd_get_section_size (sec);
 450   if ((flags & SEC_CODE) != 0 || (flags & SEC_READONLY) != 0)
 451     textsize += size;
 452   else if ((flags & SEC_HAS_CONTENTS) != 0)
 453     datasize += size;
 454   else
 455     bsssize += size;
 456 }
 457
 458 static void
 459 print_berkeley_format (bfd *abfd)
 460 {
 461   static int files_seen = 0;
 462   bfd_size_type total;
 463
 464   bsssize = 0;
 465   datasize = 0;
 466   textsize = 0;
 467
 468   bfd_map_over_sections (abfd, berkeley_sum, NULL);
 469
 470   bsssize += common_size;
 471   if (files_seen++ == 0)
 472     puts ((radix == octal) ? "   text\t   data\t    bss\t    oct\t    hex\tfilename" :
 473           "   text\t   data\t    bss\t    dec\t    hex\tfilename");
 474
 475   total = textsize + datasize + bsssize;
 476
 477   if (show_totals)
 478     {
 479       total_textsize += textsize;
 480       total_datasize += datasize;
 481       total_bsssize  += bsssize;
 482     }
 483
 484   rprint_number (7, textsize);
 485   putchar ('\t');
 486   rprint_number (7, datasize);
 487   putchar ('\t');
 488   rprint_number (7, bsssize);
 489   printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 490           (unsigned long) total, (unsigned long) total);
 491
 492   fputs (bfd_get_filename (abfd), stdout);
 493
 494   if (bfd_my_archive (abfd))
 495     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (abfd)));
 496 }
 497
 498 /* I REALLY miss lexical functions! */
 499 bfd_size_type svi_total = 0;
 500 bfd_vma svi_maxvma = 0;
 501 int svi_namelen = 0;
 502 int svi_vmalen = 0;
 503 int svi_sizelen = 0;
 504
 505 static void
 506 sysv_internal_sizer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 507                      void *ignore ATTRIBUTE_UNUSED)
 508 {
 509   bfd_size_type size = bfd_section_size (file, sec);
 510
 511   if (   ! bfd_is_abs_section (sec)
 512       && ! bfd_is_com_section (sec)
 513       && ! bfd_is_und_section (sec))
 514     {
 515       int namelen = strlen (bfd_section_name (file, sec));
 516
 517       if (namelen > svi_namelen)
 518         svi_namelen = namelen;
 519
 520       svi_total += size;
 521
 522       if (bfd_section_vma (file, sec) > svi_maxvma)
 523         svi_maxvma = bfd_section_vma (file, sec);
 524     }
 525 }
 526
 527 static void
 528 sysv_one_line (const char *name, bfd_size_type size, bfd_vma vma)
 529 {
 530   printf ("%-*s   ", svi_namelen, name);
 531   rprint_number (svi_sizelen, size);
 532   printf ("   ");
 533   rprint_number (svi_vmalen, vma);
 534   printf ("\n");
 535 }
 536
 537 static void
 538 sysv_internal_printer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 539                        void *ignore ATTRIBUTE_UNUSED)
 540 {
 541   bfd_size_type size = bfd_section_size (file, sec);
 542
 543   if (   ! bfd_is_abs_section (sec)
 544       && ! bfd_is_com_section (sec)
 545       && ! bfd_is_und_section (sec))
 546     {
 547       svi_total += size;
 548
 549       sysv_one_line (bfd_section_name (file, sec),
 550                      size,
 551                      bfd_section_vma (file, sec));
 552     }
 553 }
 554
 555 static void
 556 print_sysv_format (bfd *file)
 557 {
 558   /* Size all of the columns.  */
 559   svi_total = 0;
 560   svi_maxvma = 0;
 561   svi_namelen = 0;
 562   bfd_map_over_sections (file, sysv_internal_sizer, NULL);
 563   if (show_common)
 564     {
 565       if (svi_namelen < (int) sizeof ("*COM*") - 1)
 566         svi_namelen = sizeof ("*COM*") - 1;
 567       svi_total += common_size;
 568     }
 569
 570   svi_vmalen = size_number ((bfd_size_type)svi_maxvma);
 571
 572   if ((size_t) svi_vmalen < sizeof ("addr") - 1)
 573     svi_vmalen = sizeof ("addr")-1;
 574
 575   svi_sizelen = size_number (svi_total);
 576   if ((size_t) svi_sizelen < sizeof ("size") - 1)
 577     svi_sizelen = sizeof ("size")-1;
 578
 579   svi_total = 0;
 580   printf ("%s  ", bfd_get_filename (file));
 581
 582   if (bfd_my_archive (file))
 583     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (file)));
 584
 585   printf (":\n%-*s   %*s   %*s\n", svi_namelen, "section",
 586           svi_sizelen, "size", svi_vmalen, "addr");
 587
 588   bfd_map_over_sections (file, sysv_internal_printer, NULL);
 589   if (show_common)
 590     {
 591       svi_total += common_size;
 592       sysv_one_line ("*COM*", common_size, 0);
 593     }
 594
 595   printf ("%-*s   ", svi_namelen, "Total");
 596   rprint_number (svi_sizelen, svi_total);
 597   printf ("\n\n");
 598 }
 599
 600 static void
 601 print_sizes (bfd *file)
 602 {
 603   if (show_common)
 604     calculate_common_size (file);
 605   if (berkeley_format)
 606     print_berkeley_format (file);
 607   else
 608     print_sysv_format (file);
 609 }