binutils/size.c

   1 /* size.c -- report size of various sections of an executable file.
   2    Copyright (C) 1991 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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20
  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 +predantic switch.
  30 */
  31
  32 #include "bfd.h"
  33 #include "sysdep.h"
  34 #include "getopt.h"
  35
  36 #ifndef BSD_DEFAULT
  37 #define BSD_DEFAULT 1
  38 #endif
  39
  40 PROTO(void, display_file, (char *filename));
  41 PROTO(void, print_sizes,  (bfd *file));
  42
  43 /* Various program options */
  44
  45 enum {decimal, octal, hex} radix = decimal;
  46 int berkeley_format = BSD_DEFAULT; /* 0 means use AT&T-style output */
  47 int show_version = 0;
  48 int show_help = 0;
  49
  50 int return_code = 0;
  51
  52 /* IMPORTS */
  53 extern char *program_version;
  54 extern char *program_name;
  55 extern char *target;
  56 \f
  57 /** main and like trivia */
  58
  59 void
  60 usage ()
  61 {
  62   fprintf (stderr, "size %s\nUsage: %s -{dox}{AB}V files ...\n",
  63          program_version, program_name);
  64   fputs("\t+radix={8|10|16} -- select appropriate output radix.\n\
  65 \t-d -- output in decimal\n\
  66 \t-o -- output in octal\n\
  67 \t-x -- output in hex", stderr);
  68   fputs("\t+format={Berkeley|SysV} -- select display format.\n\
  69 \t-A -- SysV(AT&T) format\n\
  70 \t-B -- BSD format", stderr);
  71 #if BSD_DEFAULT
  72   fputs("\t  (Default is +format=Berkeley)", stderr);
  73 #else
  74   fputs("\t  (Default is +format=SysV)", stderr);
  75 #endif
  76   fputs("\t-V, +version -- display program version, etc.\n\
  77 \t+help -- this message\n", stderr);
  78   exit(1);
  79 }
  80
  81 struct option long_options[] = {{"radix",   no_argument, 0, 0},
  82                                 {"format",  required_argument, 0, 0},
  83                                 {"version", no_argument, &show_version, 1},
  84                                 {"target",  optional_argument, NULL, NULL},
  85                                 {"help",    no_argument, &show_help, 1},
  86                                 {0, no_argument, 0, 0}};
  87
  88 int
  89 main (argc, argv)
  90      int argc;
  91      char **argv;
  92 {
  93   int temp;
  94   int c;                        /* sez which option char */
  95   int option_index = 0;
  96   extern int optind;            /* steps thru options */
  97   program_name = *argv;
  98
  99   bfd_init();
 100
 101   while ((c = getopt_long(argc, argv, "ABVdox", long_options,
 102                           &option_index)) != EOF)
 103     switch(c) {
 104     case 0:
 105       if (!strcmp("format",(long_options[option_index]).name)) {
 106         switch(*optarg) {
 107         case 'B': case 'b': berkeley_format = 1; break;
 108         case 'S': case 's': berkeley_format = 0; break;
 109         default: printf("Unknown option to +format: %s\n", optarg);
 110           usage();
 111         }
 112         break;
 113       }
 114
 115       if (!strcmp("target",(long_options[option_index]).name)) {
 116         target = optarg;
 117         break;
 118       }
 119
 120       if (!strcmp("radix",(long_options[option_index]).name)) {
 121 #ifdef ANSI_LIBRARIES
 122         temp = strtol(optarg, NULL, 10);
 123 #else
 124         temp = atol(optarg);
 125 #endif
 126         switch(temp) {
 127         case 10: radix = decimal; break;
 128         case 8:  radix = octal; break;
 129         case 16: radix = hex; break;
 130         default: printf("Unknown radix: %s\n", optarg);
 131           usage();
 132         }
 133       }
 134       break;
 135     case 'A': berkeley_format = 0; break;
 136     case 'B': berkeley_format = 1; break;
 137     case 'V': show_version = 1; break;
 138     case 'd': radix = decimal; break;
 139     case 'x': radix = hex; break;
 140     case 'o': radix = octal; break;
 141     case '?': usage();
 142     }
 143
 144   if (show_version) printf("%s version %s\n", program_name, program_version);
 145   if (show_help) usage();
 146
 147   if (optind == argc)
 148     display_file ("a.out");
 149   else
 150     for (; optind < argc;)
 151       display_file (argv[optind++]);
 152
 153   return return_code;
 154 }
 155 \f
 156 /** Display a file's stats */
 157
 158 void
 159 display_bfd (abfd)
 160      bfd *abfd;
 161 {
 162   CONST  char *core_cmd;
 163
 164   if (bfd_check_format(abfd, bfd_archive)) return;
 165
 166   if (bfd_check_format(abfd, bfd_object)) {
 167     print_sizes(abfd);
 168     goto done;
 169   }
 170
 171   if (bfd_check_format(abfd, bfd_core)) {
 172     print_sizes(abfd);
 173     fputs(" (core file", stdout);
 174
 175     core_cmd = bfd_core_file_failing_command(abfd);
 176     if (core_cmd) printf(" invoked as %s", core_cmd);
 177
 178     puts(")");
 179     goto done;
 180   }
 181
 182   printf("Unknown file format: %s.", bfd_get_filename(abfd));
 183   return_code = 3;
 184
 185  done:
 186
 187
 188   printf("\n");
 189   return;
 190 }
 191
 192 void
 193 display_file(filename)
 194      char *filename;
 195 {
 196   bfd *file, *arfile = (bfd *) NULL;
 197
 198   file = bfd_openr (filename, target);
 199   if (file == NULL) {
 200     bfd_perror (filename);
 201     return_code = 1;
 202     return;
 203   }
 204
 205   if (bfd_check_format(file, bfd_archive) == true) {
 206     for(;;) {
 207
 208       bfd_error = no_error;
 209
 210        arfile = bfd_openr_next_archived_file (file, arfile);
 211       if (arfile == NULL) {
 212         if (bfd_error != no_more_archived_files) {
 213           bfd_perror (bfd_get_filename (file));
 214           return_code = 2;
 215         }
 216         return;
 217       }
 218
 219       display_bfd (arfile);
 220       /* Don't close the archive elements; we need them for next_archive */
 221     }
 222   }
 223   else
 224     display_bfd (file);
 225
 226   bfd_close (file);
 227 }
 228 \f
 229 /* This is what lexical functions are for */
 230 void
 231 lprint_number (width, num)
 232      int width, num;
 233 {
 234   printf ((radix == decimal ? "%-*d\t" :
 235            ((radix == octal) ? "%-*o\t" : "%-*x\t")), width, num);
 236 }
 237
 238 void
 239 rprint_number(width, num)
 240      int width, num;
 241 {
 242   printf ((radix == decimal ? "%*d\t" :
 243            ((radix == octal) ? "%*o\t" : "%*x\t")), width, num);
 244 }
 245
 246 static char *bss_section_name = ".bss";
 247 static char *data_section_name = ".data";
 248 static char *stack_section_name = ".stack";
 249 static char *text_section_name = ".text";
 250
 251 void print_berkeley_format(abfd)
 252 bfd *abfd;
 253 {
 254   static int files_seen = 0;
 255   sec_ptr bsssection = NULL;
 256   sec_ptr datasection = NULL;
 257   sec_ptr textsection = NULL;
 258   unsigned long bsssize = 0;
 259   unsigned long datasize = 0;
 260   unsigned long textsize = 0;
 261   unsigned long total = 0;
 262
 263
 264   if ((textsection = bfd_get_section_by_name (abfd, text_section_name))
 265       != NULL) {
 266     textsize = bfd_get_section_size_before_reloc (textsection);
 267   }
 268
 269   if ((datasection = bfd_get_section_by_name (abfd, data_section_name))
 270       != NULL) {
 271     datasize = bfd_get_section_size_before_reloc ( datasection);
 272   }
 273
 274   if (bfd_get_format (abfd) == bfd_object) {
 275     if ((bsssection = bfd_get_section_by_name (abfd, bss_section_name))
 276         != NULL) {
 277       bsssize = bfd_section_size(abfd, bsssection);
 278     }
 279   } else {
 280     if ((bsssection = bfd_get_section_by_name (abfd, stack_section_name))
 281         != NULL) {
 282       bsssize = bfd_section_size(abfd, bsssection);
 283     }
 284   }
 285
 286   if (files_seen++ == 0)
 287 #if 0   /* intel doesn't like bss/stk b/c they don't gave core files */
 288     puts((radix == octal) ? "text\tdata\tbss/stk\toct\thex\tfilename" :
 289          "text\tdata\tbss/stk\tdec\thex\tfilename");
 290 #else
 291     puts((radix == octal) ? "text\tdata\tbss\toct\thex\tfilename" :
 292          "text\tdata\tbss\tdec\thex\tfilename");
 293 #endif
 294
 295   total = textsize + datasize + bsssize;
 296
 297   lprint_number (7, textsize);
 298   lprint_number (7, datasize);
 299   lprint_number (7, bsssize);
 300   printf (((radix == octal) ? "%-7o\t%-7x\t" : "%-7d\t%-7x\t"), total, total);
 301
 302   fputs(bfd_get_filename(abfd), stdout);
 303   if (abfd->my_archive) printf (" (ex %s)", abfd->my_archive->filename);
 304 }
 305
 306 /* I REALLY miss lexical functions! */
 307 int svi_total = 0;
 308
 309 void
 310 sysv_internal_printer(file, sec, ignore)
 311      bfd *file;
 312      sec_ptr sec;
 313      PTR ignore;
 314 {
 315   int size = bfd_section_size (file, sec);
 316   if (sec!= &bfd_abs_section
 317       && sec!= &bfd_com_section
 318       && sec!=&bfd_und_section)
 319   {
 320
 321     svi_total += size;
 322
 323     printf ("%-12s", bfd_section_name(file, sec));
 324     rprint_number (8, size);
 325     printf(" ");
 326     rprint_number (8, bfd_section_vma(file, sec));
 327     printf ("\n");
 328   }
 329
 330 }
 331
 332 void
 333 print_sysv_format(file)
 334      bfd *file;
 335 {
 336   svi_total = 0;
 337
 338   printf ("%s  ", bfd_get_filename (file));
 339   if (file->my_archive) printf (" (ex %s)", file->my_archive->filename);
 340
 341   puts(":\nsection\t\tsize\t     addr");
 342   bfd_map_over_sections (file, sysv_internal_printer, (PTR)NULL);
 343
 344   printf("Total       ");
 345   rprint_number(8, svi_total);
 346   printf("\n");  printf("\n");
 347 }
 348
 349 void
 350 print_sizes(file)
 351      bfd *file;
 352 {
 353   if (berkeley_format)
 354     print_berkeley_format(file);
 355   else print_sysv_format(file);
 356 }