binutils-gdb/binutils/bucomm.c

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/* bucomm.c -- Bin Utils COMmon code.
Copyright 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
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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 2 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., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
/* We might put this in a library someday so it could be dynamically
loaded, but for now it's not necessary. */
#include "bfd.h"
#include "bfdver.h"
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#include "libiberty.h"
#include "bucomm.h"
#include "filenames.h"
#include "libbfd.h"
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#include <sys/stat.h>
#include <time.h> /* ctime, maybe time_t */
#ifndef HAVE_TIME_T_IN_TIME_H
#ifndef HAVE_TIME_T_IN_TYPES_H
typedef long time_t;
#endif
#endif
static const char * endian_string (enum bfd_endian);
static int display_target_list (void);
static int display_info_table (int, int);
static int display_target_tables (void);
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/* Error reporting. */
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char *program_name;
void
bfd_nonfatal (const char *string)
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{
const char *errmsg = bfd_errmsg (bfd_get_error ());
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if (string)
fprintf (stderr, "%s: %s: %s\n", program_name, string, errmsg);
else
fprintf (stderr, "%s: %s\n", program_name, errmsg);
}
void
bfd_fatal (const char *string)
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{
bfd_nonfatal (string);
xexit (1);
}
void
report (const char * format, va_list args)
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{
fprintf (stderr, "%s: ", program_name);
vfprintf (stderr, format, args);
putc ('\n', stderr);
}
void
fatal VPARAMS ((const char *format, ...))
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{
VA_OPEN (args, format);
VA_FIXEDARG (args, const char *, format);
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report (format, args);
VA_CLOSE (args);
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xexit (1);
}
void
non_fatal VPARAMS ((const char *format, ...))
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{
VA_OPEN (args, format);
VA_FIXEDARG (args, const char *, format);
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report (format, args);
VA_CLOSE (args);
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}
/* Set the default BFD target based on the configured target. Doing
this permits the binutils to be configured for a particular target,
and linked against a shared BFD library which was configured for a
different target. */
void
set_default_bfd_target (void)
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{
/* The macro TARGET is defined by Makefile. */
const char *target = TARGET;
if (! bfd_set_default_target (target))
fatal (_("can't set BFD default target to `%s': %s"),
target, bfd_errmsg (bfd_get_error ()));
}
/* After a FALSE return from bfd_check_format_matches with
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bfd_get_error () == bfd_error_file_ambiguously_recognized, print
the possible matching targets. */
void
list_matching_formats (char **p)
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{
fprintf (stderr, _("%s: Matching formats:"), program_name);
while (*p)
fprintf (stderr, " %s", *p++);
fputc ('\n', stderr);
}
/* List the supported targets. */
void
list_supported_targets (const char *name, FILE *f)
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{
int t;
const char **targ_names = bfd_target_list ();
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if (name == NULL)
fprintf (f, _("Supported targets:"));
else
fprintf (f, _("%s: supported targets:"), name);
for (t = 0; targ_names[t] != NULL; t++)
fprintf (f, " %s", targ_names[t]);
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fprintf (f, "\n");
free (targ_names);
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}
/* List the supported architectures. */
void
list_supported_architectures (const char *name, FILE *f)
{
const char **arch;
if (name == NULL)
fprintf (f, _("Supported architectures:"));
else
fprintf (f, _("%s: supported architectures:"), name);
for (arch = bfd_arch_list (); *arch; arch++)
fprintf (f, " %s", *arch);
fprintf (f, "\n");
}
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/* The length of the longest architecture name + 1. */
#define LONGEST_ARCH sizeof ("powerpc:common")
static const char *
endian_string (enum bfd_endian endian)
{
switch (endian)
{
case BFD_ENDIAN_BIG: return "big endian";
case BFD_ENDIAN_LITTLE: return "little endian";
default: return "endianness unknown";
}
}
/* List the targets that BFD is configured to support, each followed
by its endianness and the architectures it supports. */
static int
display_target_list (void)
{
char *dummy_name;
int t;
int ret = 1;
dummy_name = make_temp_file (NULL);
for (t = 0; bfd_target_vector[t]; t++)
{
const bfd_target *p = bfd_target_vector[t];
bfd *abfd = bfd_openw (dummy_name, p->name);
int a;
printf ("%s\n (header %s, data %s)\n", p->name,
endian_string (p->header_byteorder),
endian_string (p->byteorder));
if (abfd == NULL)
{
bfd_nonfatal (dummy_name);
ret = 0;
continue;
}
if (! bfd_set_format (abfd, bfd_object))
{
if (bfd_get_error () != bfd_error_invalid_operation)
{
bfd_nonfatal (p->name);
ret = 0;
}
bfd_close_all_done (abfd);
continue;
}
for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0))
printf (" %s\n",
bfd_printable_arch_mach ((enum bfd_architecture) a, 0));
bfd_close_all_done (abfd);
}
unlink (dummy_name);
free (dummy_name);
return ret;
}
/* Print a table showing which architectures are supported for entries
FIRST through LAST-1 of bfd_target_vector (targets across,
architectures down). */
static int
display_info_table (int first, int last)
{
int t;
int a;
int ret = 1;
char *dummy_name;
/* Print heading of target names. */
printf ("\n%*s", (int) LONGEST_ARCH, " ");
for (t = first; t < last && bfd_target_vector[t]; t++)
printf ("%s ", bfd_target_vector[t]->name);
putchar ('\n');
dummy_name = make_temp_file (NULL);
for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
{
printf ("%*s ", (int) LONGEST_ARCH - 1,
bfd_printable_arch_mach (a, 0));
for (t = first; t < last && bfd_target_vector[t]; t++)
{
const bfd_target *p = bfd_target_vector[t];
bfd_boolean ok = TRUE;
bfd *abfd = bfd_openw (dummy_name, p->name);
if (abfd == NULL)
{
bfd_nonfatal (p->name);
ret = 0;
ok = FALSE;
}
if (ok)
{
if (! bfd_set_format (abfd, bfd_object))
{
if (bfd_get_error () != bfd_error_invalid_operation)
{
bfd_nonfatal (p->name);
ret = 0;
}
ok = FALSE;
}
}
if (ok)
{
if (! bfd_set_arch_mach (abfd, a, 0))
ok = FALSE;
}
if (ok)
printf ("%s ", p->name);
else
{
int l = strlen (p->name);
while (l--)
putchar ('-');
putchar (' ');
}
if (abfd != NULL)
bfd_close_all_done (abfd);
}
putchar ('\n');
}
unlink (dummy_name);
free (dummy_name);
return ret;
}
/* Print tables of all the target-architecture combinations that
BFD has been configured to support. */
static int
display_target_tables (void)
{
int t;
int columns;
int ret = 1;
char *colum;
columns = 0;
colum = getenv ("COLUMNS");
if (colum != NULL)
columns = atoi (colum);
if (columns == 0)
columns = 80;
t = 0;
while (bfd_target_vector[t] != NULL)
{
int oldt = t, wid;
wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1;
++t;
while (wid < columns && bfd_target_vector[t] != NULL)
{
int newwid;
newwid = wid + strlen (bfd_target_vector[t]->name) + 1;
if (newwid >= columns)
break;
wid = newwid;
++t;
}
if (! display_info_table (oldt, t))
ret = 0;
}
return ret;
}
int
display_info (void)
{
printf (_("BFD header file version %s\n"), BFD_VERSION_STRING);
if (! display_target_list () || ! display_target_tables ())
return 1;
else
return 0;
}
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/* Display the archive header for an element as if it were an ls -l listing:
Mode User\tGroup\tSize\tDate Name */
void
print_arelt_descr (FILE *file, bfd *abfd, bfd_boolean verbose)
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{
struct stat buf;
if (verbose)
{
if (bfd_stat_arch_elt (abfd, &buf) == 0)
{
char modebuf[11];
char timebuf[40];
time_t when = buf.st_mtime;
const char *ctime_result = (const char *) ctime (&when);
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/* POSIX format: skip weekday and seconds from ctime output. */
sprintf (timebuf, "%.12s %.4s", ctime_result + 4, ctime_result + 20);
mode_string (buf.st_mode, modebuf);
modebuf[10] = '\0';
/* POSIX 1003.2/D11 says to skip first character (entry type). */
fprintf (file, "%s %ld/%ld %6ld %s ", modebuf + 1,
(long) buf.st_uid, (long) buf.st_gid,
(long) buf.st_size, timebuf);
}
}
fprintf (file, "%s\n", bfd_get_filename (abfd));
}
/* Return the name of a temporary file in the same directory as FILENAME. */
char *
make_tempname (char *filename)
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{
static char template[] = "stXXXXXX";
char *tmpname;
char *slash = strrchr (filename, '/');
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
{
/* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
char *bslash = strrchr (filename, '\\');
if (slash == NULL || (bslash != NULL && bslash > slash))
slash = bslash;
if (slash == NULL && filename[0] != '\0' && filename[1] == ':')
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slash = filename + 1;
}
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#endif
if (slash != (char *) NULL)
{
char c;
c = *slash;
*slash = 0;
tmpname = xmalloc (strlen (filename) + sizeof (template) + 2);
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strcpy (tmpname, filename);
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
/* If tmpname is "X:", appending a slash will make it a root
directory on drive X, which is NOT the same as the current
directory on drive X. */
if (tmpname[1] == ':' && tmpname[2] == '\0')
strcat (tmpname, ".");
#endif
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strcat (tmpname, "/");
strcat (tmpname, template);
mktemp (tmpname);
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*slash = c;
}
else
{
tmpname = xmalloc (sizeof (template));
strcpy (tmpname, template);
mktemp (tmpname);
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}
return tmpname;
}
/* Parse a string into a VMA, with a fatal error if it can't be
parsed. */
bfd_vma
parse_vma (const char *s, const char *arg)
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{
bfd_vma ret;
const char *end;
ret = bfd_scan_vma (s, &end, 0);
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if (*end != '\0')
fatal (_("%s: bad number: %s"), arg, s);
return ret;
}