binutils-gdb/binutils/size.c

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/* size.c -- report size of various sections of an executable file.
Copyright (C) 1991-2021 Free Software Foundation, Inc.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/* Extensions/incompatibilities:
o - BSD output has filenames at the end.
o - BSD output can appear in different radicies.
o - SysV output has less redundant whitespace. Filename comes at end.
o - SysV output doesn't show VMA which is always the same as the PMA.
o - We also handle core files.
o - We also handle archives.
If you write shell scripts which manipulate this info then you may be
out of luck; there's no --compatibility or --pedantic option. */
#include "sysdep.h"
#include "bfd.h"
#include "libiberty.h"
#include "getopt.h"
#include "bucomm.h"
#ifndef BSD_DEFAULT
#define BSD_DEFAULT 1
#endif
/* Program options. */
static enum
{
decimal, octal, hex
}
radix = decimal;
/* Select the desired output format. */
enum output_format
{
FORMAT_BERKLEY,
FORMAT_SYSV,
FORMAT_GNU
};
static enum output_format selected_output_format =
#if BSD_DEFAULT
FORMAT_BERKLEY
#else
FORMAT_SYSV
#endif
;
static int show_version = 0;
static int show_help = 0;
static int show_totals = 0;
static int show_common = 0;
static bfd_size_type common_size;
static bfd_size_type total_bsssize;
static bfd_size_type total_datasize;
static bfd_size_type total_textsize;
/* Program exit status. */
static int return_code = 0;
static char *target = NULL;
/* Forward declarations. */
static void display_file (char *);
static void rprint_number (int, bfd_size_type);
static void print_sizes (bfd * file);
static void
usage (FILE *stream, int status)
{
fprintf (stream, _("Usage: %s [option(s)] [file(s)]\n"), program_name);
fprintf (stream, _(" Displays the sizes of sections inside binary files\n"));
fprintf (stream, _(" If no input file(s) are specified, a.out is assumed\n"));
fprintf (stream, _(" The options are:\n\
-A|-B|-G --format={sysv|berkeley|gnu} Select output style (default is %s)\n\
-o|-d|-x --radix={8|10|16} Display numbers in octal, decimal or hex\n\
-t --totals Display the total sizes (Berkeley only)\n\
--common Display total size for *COM* syms\n\
--target=<bfdname> Set the binary file format\n\
@<file> Read options from <file>\n\
-h --help Display this information\n\
-v --version Display the program's version\n\
\n"),
#if BSD_DEFAULT
"berkeley"
#else
"sysv"
#endif
);
list_supported_targets (program_name, stream);
if (REPORT_BUGS_TO[0] && status == 0)
fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
exit (status);
}
#define OPTION_FORMAT (200)
#define OPTION_RADIX (OPTION_FORMAT + 1)
#define OPTION_TARGET (OPTION_RADIX + 1)
static struct option long_options[] =
{
{"common", no_argument, &show_common, 1},
{"format", required_argument, 0, OPTION_FORMAT},
{"radix", required_argument, 0, OPTION_RADIX},
{"target", required_argument, 0, OPTION_TARGET},
{"totals", no_argument, &show_totals, 1},
{"version", no_argument, &show_version, 1},
{"help", no_argument, &show_help, 1},
{0, no_argument, 0, 0}
};
int main (int, char **);
int
main (int argc, char **argv)
{
int temp;
int c;
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
#endif
#if defined (HAVE_SETLOCALE)
setlocale (LC_CTYPE, "");
#endif
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
program_name = *argv;
xmalloc_set_program_name (program_name);
bfd_set_error_program_name (program_name);
expandargv (&argc, &argv);
if (bfd_init () != BFD_INIT_MAGIC)
fatal (_("fatal error: libbfd ABI mismatch"));
set_default_bfd_target ();
while ((c = getopt_long (argc, argv, "ABGHhVvdfotx", long_options,
(int *) 0)) != EOF)
switch (c)
{
case OPTION_FORMAT:
switch (*optarg)
{
case 'B':
case 'b':
selected_output_format = FORMAT_BERKLEY;
break;
case 'S':
case 's':
selected_output_format = FORMAT_SYSV;
break;
case 'G':
case 'g':
selected_output_format = FORMAT_GNU;
break;
default:
non_fatal (_("invalid argument to --format: %s"), optarg);
usage (stderr, 1);
}
break;
case OPTION_TARGET:
target = optarg;
break;
case OPTION_RADIX:
#ifdef ANSI_LIBRARIES
temp = strtol (optarg, NULL, 10);
#else
temp = atol (optarg);
#endif
switch (temp)
{
case 10:
radix = decimal;
break;
case 8:
radix = octal;
break;
case 16:
radix = hex;
break;
default:
non_fatal (_("Invalid radix: %s\n"), optarg);
usage (stderr, 1);
}
break;
case 'A':
selected_output_format = FORMAT_SYSV;
break;
case 'B':
selected_output_format = FORMAT_BERKLEY;
break;
case 'G':
selected_output_format = FORMAT_GNU;
break;
case 'v':
case 'V':
show_version = 1;
break;
case 'd':
radix = decimal;
break;
case 'x':
radix = hex;
break;
case 'o':
radix = octal;
break;
case 't':
show_totals = 1;
break;
case 'f': /* FIXME : For sysv68, `-f' means `full format', i.e.
`[fname:] M(.text) + N(.data) + O(.bss) + P(.comment) = Q'
where `fname: ' appears only if there are >= 2 input files,
and M, N, O, P, Q are expressed in decimal by default,
hexa or octal if requested by `-x' or `-o'.
Just to make things interesting, Solaris also accepts -f,
which prints out the size of each allocatable section, the
name of the section, and the total of the section sizes. */
/* For the moment, accept `-f' silently, and ignore it. */
break;
case 0:
break;
case 'h':
case 'H':
case '?':
usage (stderr, 1);
}
if (show_version)
print_version ("size");
if (show_help)
usage (stdout, 0);
if (optind == argc)
display_file ("a.out");
else
for (; optind < argc;)
display_file (argv[optind++]);
if (show_totals && (selected_output_format == FORMAT_BERKLEY
|| selected_output_format == FORMAT_GNU))
{
bfd_size_type total = total_textsize + total_datasize + total_bsssize;
int col_width = (selected_output_format == FORMAT_BERKLEY) ? 7 : 10;
char sep_char = (selected_output_format == FORMAT_BERKLEY) ? '\t' : ' ';
rprint_number (col_width, total_textsize);
putchar(sep_char);
rprint_number (col_width, total_datasize);
putchar(sep_char);
rprint_number (col_width, total_bsssize);
putchar(sep_char);
if (selected_output_format == FORMAT_BERKLEY)
printf (((radix == octal) ? "%7lo\t%7lx" : "%7lu\t%7lx"),
(unsigned long) total, (unsigned long) total);
else
rprint_number (col_width, total);
putchar(sep_char);
fputs ("(TOTALS)\n", stdout);
}
return return_code;
}
/* Total size required for common symbols in ABFD. */
static void
calculate_common_size (bfd *abfd)
{
asymbol **syms = NULL;
long storage, symcount;
common_size = 0;
if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC | HAS_SYMS)) != HAS_SYMS)
return;
storage = bfd_get_symtab_upper_bound (abfd);
if (storage < 0)
bfd_fatal (bfd_get_filename (abfd));
if (storage)
syms = (asymbol **) xmalloc (storage);
symcount = bfd_canonicalize_symtab (abfd, syms);
if (symcount < 0)
bfd_fatal (bfd_get_filename (abfd));
while (--symcount >= 0)
{
asymbol *sym = syms[symcount];
if (bfd_is_com_section (sym->section)
&& (sym->flags & BSF_SECTION_SYM) == 0)
common_size += sym->value;
}
free (syms);
}
/* Display stats on file or archive member ABFD. */
static void
display_bfd (bfd *abfd)
{
char **matching;
if (bfd_check_format (abfd, bfd_archive))
/* An archive within an archive. */
return;
if (bfd_check_format_matches (abfd, bfd_object, &matching))
{
print_sizes (abfd);
printf ("\n");
return;
}
if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
{
bfd_nonfatal (bfd_get_filename (abfd));
list_matching_formats (matching);
free (matching);
return_code = 3;
return;
}
if (bfd_check_format_matches (abfd, bfd_core, &matching))
{
const char *core_cmd;
print_sizes (abfd);
fputs (" (core file", stdout);
core_cmd = bfd_core_file_failing_command (abfd);
if (core_cmd)
printf (" invoked as %s", core_cmd);
puts (")\n");
return;
}
bfd_nonfatal (bfd_get_filename (abfd));
if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
{
list_matching_formats (matching);
free (matching);
}
return_code = 3;
}
static void
display_archive (bfd *file)
{
bfd *arfile = (bfd *) NULL;
bfd *last_arfile = (bfd *) NULL;
for (;;)
{
bfd_set_error (bfd_error_no_error);
arfile = bfd_openr_next_archived_file (file, arfile);
if (arfile == NULL)
{
if (bfd_get_error () != bfd_error_no_more_archived_files)
{
bfd_nonfatal (bfd_get_filename (file));
return_code = 2;
}
break;
}
display_bfd (arfile);
if (last_arfile != NULL)
{
bfd_close (last_arfile);
/* PR 17512: file: a244edbc. */
if (last_arfile == arfile)
return;
}
last_arfile = arfile;
}
if (last_arfile != NULL)
bfd_close (last_arfile);
}
static void
display_file (char *filename)
{
bfd *file;
if (get_file_size (filename) < 1)
{
return_code = 1;
return;
}
file = bfd_openr (filename, target);
if (file == NULL)
{
bfd_nonfatal (filename);
return_code = 1;
return;
}
if (bfd_check_format (file, bfd_archive))
display_archive (file);
else
display_bfd (file);
if (!bfd_close (file))
{
bfd_nonfatal (filename);
return_code = 1;
return;
}
}
static int
size_number (bfd_size_type num)
{
char buffer[40];
sprintf (buffer,
(radix == decimal ? "%" BFD_VMA_FMT "u" :
((radix == octal) ? "0%" BFD_VMA_FMT "o" : "0x%" BFD_VMA_FMT "x")),
num);
return strlen (buffer);
}
static void
rprint_number (int width, bfd_size_type num)
{
char buffer[40];
sprintf (buffer,
(radix == decimal ? "%" BFD_VMA_FMT "u" :
((radix == octal) ? "0%" BFD_VMA_FMT "o" : "0x%" BFD_VMA_FMT "x")),
num);
printf ("%*s", width, buffer);
}
static bfd_size_type bsssize;
static bfd_size_type datasize;
static bfd_size_type textsize;
static void
berkeley_or_gnu_sum (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec,
void *ignore ATTRIBUTE_UNUSED)
{
flagword flags;
bfd_size_type size;
flags = bfd_section_flags (sec);
if ((flags & SEC_ALLOC) == 0)
return;
size = bfd_section_size (sec);
if ((flags & SEC_CODE) != 0
|| (selected_output_format == FORMAT_BERKLEY
&& (flags & SEC_READONLY) != 0))
textsize += size;
else if ((flags & SEC_HAS_CONTENTS) != 0)
datasize += size;
else
bsssize += size;
}
static void
print_berkeley_or_gnu_format (bfd *abfd)
{
static int files_seen = 0;
bfd_size_type total;
int col_width = (selected_output_format == FORMAT_BERKLEY) ? 7 : 10;
char sep_char = (selected_output_format == FORMAT_BERKLEY) ? '\t' : ' ';
bsssize = 0;
datasize = 0;
textsize = 0;
bfd_map_over_sections (abfd, berkeley_or_gnu_sum, NULL);
bsssize += common_size;
if (files_seen++ == 0)
{
if (selected_output_format == FORMAT_BERKLEY)
puts ((radix == octal) ? " text\t data\t bss\t oct\t hex\tfilename" :
" text\t data\t bss\t dec\t hex\tfilename");
else
puts (" text data bss total filename");
}
total = textsize + datasize + bsssize;
if (show_totals)
{
total_textsize += textsize;
total_datasize += datasize;
total_bsssize += bsssize;
}
rprint_number (col_width, textsize);
putchar (sep_char);
rprint_number (col_width, datasize);
putchar (sep_char);
rprint_number (col_width, bsssize);
putchar (sep_char);
if (selected_output_format == FORMAT_BERKLEY)
printf (((radix == octal) ? "%7lo\t%7lx" : "%7lu\t%7lx"),
(unsigned long) total, (unsigned long) total);
else
rprint_number (col_width, total);
putchar (sep_char);
fputs (bfd_get_filename (abfd), stdout);
if (abfd->my_archive)
printf (" (ex %s)", bfd_get_filename (abfd->my_archive));
}
/* I REALLY miss lexical functions! */
bfd_size_type svi_total = 0;
bfd_vma svi_maxvma = 0;
int svi_namelen = 0;
int svi_vmalen = 0;
int svi_sizelen = 0;
static void
sysv_internal_sizer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
void *ignore ATTRIBUTE_UNUSED)
{
flagword flags = bfd_section_flags (sec);
/* Exclude sections with no flags set. This is to omit som spaces. */
if (flags == 0)
return;
if ( ! bfd_is_abs_section (sec)
&& ! bfd_is_com_section (sec)
&& ! bfd_is_und_section (sec))
{
bfd_size_type size = bfd_section_size (sec);
int namelen = strlen (bfd_section_name (sec));
if (namelen > svi_namelen)
svi_namelen = namelen;
svi_total += size;
if (bfd_section_vma (sec) > svi_maxvma)
svi_maxvma = bfd_section_vma (sec);
}
}
static void
sysv_one_line (const char *name, bfd_size_type size, bfd_vma vma)
{
printf ("%-*s ", svi_namelen, name);
rprint_number (svi_sizelen, size);
printf (" ");
rprint_number (svi_vmalen, vma);
printf ("\n");
}
static void
sysv_internal_printer (bfd *file ATTRIBUTE_UNUSED, sec_ptr sec,
void *ignore ATTRIBUTE_UNUSED)
{
flagword flags = bfd_section_flags (sec);
if (flags == 0)
return;
if ( ! bfd_is_abs_section (sec)
&& ! bfd_is_com_section (sec)
&& ! bfd_is_und_section (sec))
{
bfd_size_type size = bfd_section_size (sec);
svi_total += size;
sysv_one_line (bfd_section_name (sec),
size,
bfd_section_vma (sec));
}
}
static void
print_sysv_format (bfd *file)
{
/* Size all of the columns. */
svi_total = 0;
svi_maxvma = 0;
svi_namelen = 0;
bfd_map_over_sections (file, sysv_internal_sizer, NULL);
if (show_common)
{
if (svi_namelen < (int) sizeof ("*COM*") - 1)
svi_namelen = sizeof ("*COM*") - 1;
svi_total += common_size;
}
svi_vmalen = size_number ((bfd_size_type)svi_maxvma);
if ((size_t) svi_vmalen < sizeof ("addr") - 1)
svi_vmalen = sizeof ("addr")-1;
svi_sizelen = size_number (svi_total);
if ((size_t) svi_sizelen < sizeof ("size") - 1)
svi_sizelen = sizeof ("size")-1;
svi_total = 0;
printf ("%s ", bfd_get_filename (file));
if (file->my_archive)
printf (" (ex %s)", bfd_get_filename (file->my_archive));
printf (":\n%-*s %*s %*s\n", svi_namelen, "section",
svi_sizelen, "size", svi_vmalen, "addr");
bfd_map_over_sections (file, sysv_internal_printer, NULL);
if (show_common)
{
svi_total += common_size;
sysv_one_line ("*COM*", common_size, 0);
}
printf ("%-*s ", svi_namelen, "Total");
rprint_number (svi_sizelen, svi_total);
printf ("\n\n");
}
static void
print_sizes (bfd *file)
{
if (show_common)
calculate_common_size (file);
if (selected_output_format == FORMAT_SYSV)
print_sysv_format (file);
else
print_berkeley_or_gnu_format (file);
}