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, 2008
   4    Free Software Foundation, Inc.
   5
   6    This file is part of GNU Binutils.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22 \f
  23 /* Extensions/incompatibilities:
  24    o - BSD output has filenames at the end.
  25    o - BSD output can appear in different radicies.
  26    o - SysV output has less redundant whitespace.  Filename comes at end.
  27    o - SysV output doesn't show VMA which is always the same as the PMA.
  28    o - We also handle core files.
  29    o - We also handle archives.
  30    If you write shell scripts which manipulate this info then you may be
  31    out of luck; there's no --compatibility or --pedantic option.  */
  32
  33 #include "sysdep.h"
  34 #include "bfd.h"
  35 #include "libiberty.h"
  36 #include "getopt.h"
  37 #include "bucomm.h"
  38
  39 #ifndef BSD_DEFAULT
  40 #define BSD_DEFAULT 1
  41 #endif
  42
  43 /* Program options.  */
  44
  45 static enum
  46   {
  47     decimal, octal, hex
  48   }
  49 radix = decimal;
  50
  51 /* 0 means use AT&T-style output.  */
  52 static int berkeley_format = BSD_DEFAULT;
  53
  54 static int show_version = 0;
  55 static int show_help = 0;
  56 static int show_totals = 0;
  57 static int show_common = 0;
  58
  59 static bfd_size_type common_size;
  60 static bfd_size_type total_bsssize;
  61 static bfd_size_type total_datasize;
  62 static bfd_size_type total_textsize;
  63
  64 /* Program exit status.  */
  65 static int return_code = 0;
  66
  67 static char *target = NULL;
  68
  69 /* Forward declarations.  */
  70
  71 static void display_file (char *);
  72 static void rprint_number (int, bfd_size_type);
  73 static void print_sizes (bfd * file);
  74 \f
  75 static void
  76 usage (FILE *stream, int status)
  77 {
  78   fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
  79   fprintf (stream, _(" Displays the sizes of sections inside binary files\n"));
  80   fprintf (stream, _(" If no input file(s) are specified, a.out is assumed\n"));
  81   fprintf (stream, _(" The options are:\n\
  82   -A|-B     --format={sysv|berkeley}  Select output style (default is %s)\n\
  83   -o|-d|-x  --radix={8|10|16}         Display numbers in octal, decimal or hex\n\
  84   -t        --totals                  Display the total sizes (Berkeley only)\n\
  85             --common                  Display total size for *COM* syms\n\
  86             --target=<bfdname>        Set the binary file format\n\
  87             @<file>                   Read options from <file>\n\
  88   -h        --help                    Display this information\n\
  89   -v        --version                 Display the program's version\n\
  90 \n"),
  91 #if BSD_DEFAULT
  92   "berkeley"
  93 #else
  94   "sysv"
  95 #endif
  96 );
  97   list_supported_targets (program_name, stream);
  98   if (REPORT_BUGS_TO[0] && status == 0)
  99     fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
 100   exit (status);
 101 }
 102
 103 #define OPTION_FORMAT (200)
 104 #define OPTION_RADIX (OPTION_FORMAT + 1)
 105 #define OPTION_TARGET (OPTION_RADIX + 1)
 106
 107 static struct option long_options[] =
 108 {
 109   {"common", no_argument, &show_common, 1},
 110   {"format", required_argument, 0, OPTION_FORMAT},
 111   {"radix", required_argument, 0, OPTION_RADIX},
 112   {"target", required_argument, 0, OPTION_TARGET},
 113   {"totals", no_argument, &show_totals, 1},
 114   {"version", no_argument, &show_version, 1},
 115   {"help", no_argument, &show_help, 1},
 116   {0, no_argument, 0, 0}
 117 };
 118
 119 int main (int, char **);
 120
 121 int
 122 main (int argc, char **argv)
 123 {
 124   int temp;
 125   int c;
 126
 127 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
 128   setlocale (LC_MESSAGES, "");
 129 #endif
 130 #if defined (HAVE_SETLOCALE)
 131   setlocale (LC_CTYPE, "");
 132 #endif
 133   bindtextdomain (PACKAGE, LOCALEDIR);
 134   textdomain (PACKAGE);
 135
 136   program_name = *argv;
 137   xmalloc_set_program_name (program_name);
 138
 139   expandargv (&argc, &argv);
 140
 141   bfd_init ();
 142   set_default_bfd_target ();
 143
 144   while ((c = getopt_long (argc, argv, "ABHhVvdfotx", long_options,
 145                            (int *) 0)) != EOF)
 146     switch (c)
 147       {
 148       case OPTION_FORMAT:
 149         switch (*optarg)
 150           {
 151           case 'B':
 152           case 'b':
 153             berkeley_format = 1;
 154             break;
 155           case 'S':
 156           case 's':
 157             berkeley_format = 0;
 158             break;
 159           default:
 160             non_fatal (_("invalid argument to --format: %s"), optarg);
 161             usage (stderr, 1);
 162           }
 163         break;
 164
 165       case OPTION_TARGET:
 166         target = optarg;
 167         break;
 168
 169       case OPTION_RADIX:
 170 #ifdef ANSI_LIBRARIES
 171         temp = strtol (optarg, NULL, 10);
 172 #else
 173         temp = atol (optarg);
 174 #endif
 175         switch (temp)
 176           {
 177           case 10:
 178             radix = decimal;
 179             break;
 180           case 8:
 181             radix = octal;
 182             break;
 183           case 16:
 184             radix = hex;
 185             break;
 186           default:
 187             non_fatal (_("Invalid radix: %s\n"), optarg);
 188             usage (stderr, 1);
 189           }
 190         break;
 191
 192       case 'A':
 193         berkeley_format = 0;
 194         break;
 195       case 'B':
 196         berkeley_format = 1;
 197         break;
 198       case 'v':
 199       case 'V':
 200         show_version = 1;
 201         break;
 202       case 'd':
 203         radix = decimal;
 204         break;
 205       case 'x':
 206         radix = hex;
 207         break;
 208       case 'o':
 209         radix = octal;
 210         break;
 211       case 't':
 212         show_totals = 1;
 213         break;
 214       case 'f': /* FIXME : For sysv68, `-f' means `full format', i.e.
 215                    `[fname:] M(.text) + N(.data) + O(.bss) + P(.comment) = Q'
 216                    where `fname: ' appears only if there are >= 2 input files,
 217                    and M, N, O, P, Q are expressed in decimal by default,
 218                    hexa or octal if requested by `-x' or `-o'.
 219                    Just to make things interesting, Solaris also accepts -f,
 220                    which prints out the size of each allocatable section, the
 221                    name of the section, and the total of the section sizes.  */
 222                 /* For the moment, accept `-f' silently, and ignore it.  */
 223         break;
 224       case 0:
 225         break;
 226       case 'h':
 227       case 'H':
 228       case '?':
 229         usage (stderr, 1);
 230       }
 231
 232   if (show_version)
 233     print_version ("size");
 234   if (show_help)
 235     usage (stdout, 0);
 236
 237   if (optind == argc)
 238     display_file ("a.out");
 239   else
 240     for (; optind < argc;)
 241       display_file (argv[optind++]);
 242
 243   if (show_totals && berkeley_format)
 244     {
 245       bfd_size_type total = total_textsize + total_datasize + total_bsssize;
 246
 247       rprint_number (7, total_textsize);
 248       putchar('\t');
 249       rprint_number (7, total_datasize);
 250       putchar('\t');
 251       rprint_number (7, total_bsssize);
 252       printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 253               (unsigned long) total, (unsigned long) total);
 254       fputs ("(TOTALS)\n", stdout);
 255     }
 256
 257   return return_code;
 258 }
 259 \f
 260 /* Total size required for common symbols in ABFD.  */
 261
 262 static void
 263 calculate_common_size (bfd *abfd)
 264 {
 265   asymbol **syms = NULL;
 266   long storage, symcount;
 267
 268   common_size = 0;
 269   if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC | HAS_SYMS)) != HAS_SYMS)
 270     return;
 271
 272   storage = bfd_get_symtab_upper_bound (abfd);
 273   if (storage < 0)
 274     bfd_fatal (bfd_get_filename (abfd));
 275   if (storage)
 276     syms = xmalloc (storage);
 277
 278   symcount = bfd_canonicalize_symtab (abfd, syms);
 279   if (symcount < 0)
 280     bfd_fatal (bfd_get_filename (abfd));
 281
 282   while (--symcount >= 0)
 283     {
 284       asymbol *sym = syms[symcount];
 285
 286       if (bfd_is_com_section (sym->section)
 287           && (sym->flags & BSF_SECTION_SYM) == 0)
 288         common_size += sym->value;
 289     }
 290   free (syms);
 291 }
 292
 293 /* Display stats on file or archive member ABFD.  */
 294
 295 static void
 296 display_bfd (bfd *abfd)
 297 {
 298   char **matching;
 299
 300   if (bfd_check_format (abfd, bfd_archive))
 301     /* An archive within an archive.  */
 302     return;
 303
 304   if (bfd_check_format_matches (abfd, bfd_object, &matching))
 305     {
 306       print_sizes (abfd);
 307       printf ("\n");
 308       return;
 309     }
 310
 311   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 312     {
 313       bfd_nonfatal (bfd_get_filename (abfd));
 314       list_matching_formats (matching);
 315       free (matching);
 316       return_code = 3;
 317       return;
 318     }
 319
 320   if (bfd_check_format_matches (abfd, bfd_core, &matching))
 321     {
 322       const char *core_cmd;
 323
 324       print_sizes (abfd);
 325       fputs (" (core file", stdout);
 326
 327       core_cmd = bfd_core_file_failing_command (abfd);
 328       if (core_cmd)
 329         printf (" invoked as %s", core_cmd);
 330
 331       puts (")\n");
 332       return;
 333     }
 334
 335   bfd_nonfatal (bfd_get_filename (abfd));
 336
 337   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
 338     {
 339       list_matching_formats (matching);
 340       free (matching);
 341     }
 342
 343   return_code = 3;
 344 }
 345
 346 static void
 347 display_archive (bfd *file)
 348 {
 349   bfd *arfile = (bfd *) NULL;
 350   bfd *last_arfile = (bfd *) NULL;
 351
 352   for (;;)
 353     {
 354       bfd_set_error (bfd_error_no_error);
 355
 356       arfile = bfd_openr_next_archived_file (file, arfile);
 357       if (arfile == NULL)
 358         {
 359           if (bfd_get_error () != bfd_error_no_more_archived_files)
 360             {
 361               bfd_nonfatal (bfd_get_filename (file));
 362               return_code = 2;
 363             }
 364           break;
 365         }
 366
 367       display_bfd (arfile);
 368
 369       if (last_arfile != NULL)
 370         bfd_close (last_arfile);
 371       last_arfile = arfile;
 372     }
 373
 374   if (last_arfile != NULL)
 375     bfd_close (last_arfile);
 376 }
 377
 378 static void
 379 display_file (char *filename)
 380 {
 381   bfd *file;
 382
 383   if (get_file_size (filename) < 1)
 384     {
 385       return_code = 1;
 386       return;
 387     }
 388
 389   file = bfd_openr (filename, target);
 390   if (file == NULL)
 391     {
 392       bfd_nonfatal (filename);
 393       return_code = 1;
 394       return;
 395     }
 396
 397   if (bfd_check_format (file, bfd_archive))
 398     display_archive (file);
 399   else
 400     display_bfd (file);
 401
 402   if (!bfd_close (file))
 403     {
 404       bfd_nonfatal (filename);
 405       return_code = 1;
 406       return;
 407     }
 408 }
 409 \f
 410 static int
 411 size_number (bfd_size_type num)
 412 {
 413   char buffer[40];
 414
 415   sprintf (buffer,
 416            (radix == decimal ? "%" BFD_VMA_FMT "u" :
 417            ((radix == octal) ? "0%" BFD_VMA_FMT "o" : "0x%" BFD_VMA_FMT "x")),
 418            num);
 419
 420   return strlen (buffer);
 421 }
 422
 423 static void
 424 rprint_number (int width, bfd_size_type num)
 425 {
 426   char buffer[40];
 427
 428   sprintf (buffer,
 429            (radix == decimal ? "%" BFD_VMA_FMT "u" :
 430            ((radix == octal) ? "0%" BFD_VMA_FMT "o" : "0x%" BFD_VMA_FMT "x")),
 431            num);
 432
 433   printf ("%*s", width, buffer);
 434 }
 435
 436 static bfd_size_type bsssize;
 437 static bfd_size_type datasize;
 438 static bfd_size_type textsize;
 439
 440 static void
 441 berkeley_sum (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec,
 442               void *ignore ATTRIBUTE_UNUSED)
 443 {
 444   flagword flags;
 445   bfd_size_type size;
 446
 447   flags = bfd_get_section_flags (abfd, sec);
 448   if ((flags & SEC_ALLOC) == 0)
 449     return;
 450
 451   size = bfd_get_section_size (sec);
 452   if ((flags & SEC_CODE) != 0 || (flags & SEC_READONLY) != 0)
 453     textsize += size;
 454   else if ((flags & SEC_HAS_CONTENTS) != 0)
 455     datasize += size;
 456   else
 457     bsssize += size;
 458 }
 459
 460 static void
 461 print_berkeley_format (bfd *abfd)
 462 {
 463   static int files_seen = 0;
 464   bfd_size_type total;
 465
 466   bsssize = 0;
 467   datasize = 0;
 468   textsize = 0;
 469
 470   bfd_map_over_sections (abfd, berkeley_sum, NULL);
 471
 472   bsssize += common_size;
 473   if (files_seen++ == 0)
 474     puts ((radix == octal) ? "   text\t   data\t    bss\t    oct\t    hex\tfilename" :
 475           "   text\t   data\t    bss\t    dec\t    hex\tfilename");
 476
 477   total = textsize + datasize + bsssize;
 478
 479   if (show_totals)
 480     {
 481       total_textsize += textsize;
 482       total_datasize += datasize;
 483       total_bsssize  += bsssize;
 484     }
 485
 486   rprint_number (7, textsize);
 487   putchar ('\t');
 488   rprint_number (7, datasize);
 489   putchar ('\t');
 490   rprint_number (7, bsssize);
 491   printf (((radix == octal) ? "\t%7lo\t%7lx\t" : "\t%7lu\t%7lx\t"),
 492           (unsigned long) total, (unsigned long) total);
 493
 494   fputs (bfd_get_filename (abfd), stdout);
 495
 496   if (bfd_my_archive (abfd))
 497     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (abfd)));
 498 }
 499
 500 /* I REALLY miss lexical functions! */
 501 bfd_size_type svi_total = 0;
 502 bfd_vma svi_maxvma = 0;
 503 int svi_namelen = 0;
 504 int svi_vmalen = 0;
 505 int svi_sizelen = 0;
 506
 507 static void
 508 sysv_internal_sizer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 509                      void *ignore ATTRIBUTE_UNUSED)
 510 {
 511   bfd_size_type size = bfd_section_size (file, sec);
 512
 513   if (   ! bfd_is_abs_section (sec)
 514       && ! bfd_is_com_section (sec)
 515       && ! bfd_is_und_section (sec))
 516     {
 517       int namelen = strlen (bfd_section_name (file, sec));
 518
 519       if (namelen > svi_namelen)
 520         svi_namelen = namelen;
 521
 522       svi_total += size;
 523
 524       if (bfd_section_vma (file, sec) > svi_maxvma)
 525         svi_maxvma = bfd_section_vma (file, sec);
 526     }
 527 }
 528
 529 static void
 530 sysv_one_line (const char *name, bfd_size_type size, bfd_vma vma)
 531 {
 532   printf ("%-*s   ", svi_namelen, name);
 533   rprint_number (svi_sizelen, size);
 534   printf ("   ");
 535   rprint_number (svi_vmalen, vma);
 536   printf ("\n");
 537 }
 538
 539 static void
 540 sysv_internal_printer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
 541                        void *ignore ATTRIBUTE_UNUSED)
 542 {
 543   bfd_size_type size = bfd_section_size (file, sec);
 544
 545   if (   ! bfd_is_abs_section (sec)
 546       && ! bfd_is_com_section (sec)
 547       && ! bfd_is_und_section (sec))
 548     {
 549       svi_total += size;
 550
 551       sysv_one_line (bfd_section_name (file, sec),
 552                      size,
 553                      bfd_section_vma (file, sec));
 554     }
 555 }
 556
 557 static void
 558 print_sysv_format (bfd *file)
 559 {
 560   /* Size all of the columns.  */
 561   svi_total = 0;
 562   svi_maxvma = 0;
 563   svi_namelen = 0;
 564   bfd_map_over_sections (file, sysv_internal_sizer, NULL);
 565   if (show_common)
 566     {
 567       if (svi_namelen < (int) sizeof ("*COM*") - 1)
 568         svi_namelen = sizeof ("*COM*") - 1;
 569       svi_total += common_size;
 570     }
 571
 572   svi_vmalen = size_number ((bfd_size_type)svi_maxvma);
 573
 574   if ((size_t) svi_vmalen < sizeof ("addr") - 1)
 575     svi_vmalen = sizeof ("addr")-1;
 576
 577   svi_sizelen = size_number (svi_total);
 578   if ((size_t) svi_sizelen < sizeof ("size") - 1)
 579     svi_sizelen = sizeof ("size")-1;
 580
 581   svi_total = 0;
 582   printf ("%s  ", bfd_get_filename (file));
 583
 584   if (bfd_my_archive (file))
 585     printf (" (ex %s)", bfd_get_filename (bfd_my_archive (file)));
 586
 587   printf (":\n%-*s   %*s   %*s\n", svi_namelen, "section",
 588           svi_sizelen, "size", svi_vmalen, "addr");
 589
 590   bfd_map_over_sections (file, sysv_internal_printer, NULL);
 591   if (show_common)
 592     {
 593       svi_total += common_size;
 594       sysv_one_line ("*COM*", common_size, 0);
 595     }
 596
 597   printf ("%-*s   ", svi_namelen, "Total");
 598   rprint_number (svi_sizelen, svi_total);
 599   printf ("\n\n");
 600 }
 601
 602 static void
 603 print_sizes (bfd *file)
 604 {
 605   if (show_common)
 606     calculate_common_size (file);
 607   if (berkeley_format)
 608     print_berkeley_format (file);
 609   else
 610     print_sysv_format (file);
 611 }