97d40d3d4a
us up to version 2.17.50.20070703, at the last GPLv2 commit. Amongst others, this added upstream support for some FreeBSD-specific things that we previously had to manually hack in, such as the OSABI label support, and so on. There are also quite a number of new files, some for cpu's (e.g. SPU) that we may or may not be interested in, but those can be cleaned up later on, if needed.
563 lines
13 KiB
C
563 lines
13 KiB
C
/* bucomm.c -- Bin Utils COMmon code.
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Copyright 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000, 2001, 2002,
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2003, 2006, 2007
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Free Software Foundation, Inc.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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/* We might put this in a library someday so it could be dynamically
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loaded, but for now it's not necessary. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libiberty.h"
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#include "filenames.h"
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#include "libbfd.h"
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#include <sys/stat.h>
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#include <time.h> /* ctime, maybe time_t */
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#include <assert.h>
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#include "bucomm.h"
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#ifndef HAVE_TIME_T_IN_TIME_H
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#ifndef HAVE_TIME_T_IN_TYPES_H
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typedef long time_t;
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#endif
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#endif
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static const char * endian_string (enum bfd_endian);
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static int display_target_list (void);
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static int display_info_table (int, int);
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static int display_target_tables (void);
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/* Error reporting. */
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char *program_name;
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void
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bfd_nonfatal (const char *string)
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{
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const char *errmsg = bfd_errmsg (bfd_get_error ());
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if (string)
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fprintf (stderr, "%s: %s: %s\n", program_name, string, errmsg);
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else
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fprintf (stderr, "%s: %s\n", program_name, errmsg);
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}
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void
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bfd_fatal (const char *string)
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{
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bfd_nonfatal (string);
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xexit (1);
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}
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void
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report (const char * format, va_list args)
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{
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fprintf (stderr, "%s: ", program_name);
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vfprintf (stderr, format, args);
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putc ('\n', stderr);
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}
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void
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fatal VPARAMS ((const char *format, ...))
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{
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VA_OPEN (args, format);
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VA_FIXEDARG (args, const char *, format);
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report (format, args);
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VA_CLOSE (args);
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xexit (1);
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}
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void
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non_fatal VPARAMS ((const char *format, ...))
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{
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VA_OPEN (args, format);
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VA_FIXEDARG (args, const char *, format);
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report (format, args);
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VA_CLOSE (args);
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}
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/* Set the default BFD target based on the configured target. Doing
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this permits the binutils to be configured for a particular target,
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and linked against a shared BFD library which was configured for a
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different target. */
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void
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set_default_bfd_target (void)
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{
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/* The macro TARGET is defined by Makefile. */
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const char *target = TARGET;
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if (! bfd_set_default_target (target))
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fatal (_("can't set BFD default target to `%s': %s"),
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target, bfd_errmsg (bfd_get_error ()));
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}
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/* After a FALSE return from bfd_check_format_matches with
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bfd_get_error () == bfd_error_file_ambiguously_recognized, print
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the possible matching targets. */
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void
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list_matching_formats (char **p)
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{
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fprintf (stderr, _("%s: Matching formats:"), program_name);
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while (*p)
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fprintf (stderr, " %s", *p++);
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fputc ('\n', stderr);
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}
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/* List the supported targets. */
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void
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list_supported_targets (const char *name, FILE *f)
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{
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int t;
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const char **targ_names = bfd_target_list ();
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if (name == NULL)
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fprintf (f, _("Supported targets:"));
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else
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fprintf (f, _("%s: supported targets:"), name);
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for (t = 0; targ_names[t] != NULL; t++)
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fprintf (f, " %s", targ_names[t]);
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fprintf (f, "\n");
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free (targ_names);
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}
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/* List the supported architectures. */
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void
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list_supported_architectures (const char *name, FILE *f)
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{
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const char **arch;
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if (name == NULL)
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fprintf (f, _("Supported architectures:"));
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else
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fprintf (f, _("%s: supported architectures:"), name);
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for (arch = bfd_arch_list (); *arch; arch++)
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fprintf (f, " %s", *arch);
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fprintf (f, "\n");
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}
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/* The length of the longest architecture name + 1. */
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#define LONGEST_ARCH sizeof ("powerpc:common")
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static const char *
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endian_string (enum bfd_endian endian)
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{
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switch (endian)
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{
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case BFD_ENDIAN_BIG: return "big endian";
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case BFD_ENDIAN_LITTLE: return "little endian";
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default: return "endianness unknown";
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}
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}
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/* List the targets that BFD is configured to support, each followed
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by its endianness and the architectures it supports. */
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static int
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display_target_list (void)
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{
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char *dummy_name;
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int t;
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int ret = 1;
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dummy_name = make_temp_file (NULL);
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for (t = 0; bfd_target_vector[t]; t++)
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{
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const bfd_target *p = bfd_target_vector[t];
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bfd *abfd = bfd_openw (dummy_name, p->name);
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enum bfd_architecture a;
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printf ("%s\n (header %s, data %s)\n", p->name,
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endian_string (p->header_byteorder),
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endian_string (p->byteorder));
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if (abfd == NULL)
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{
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bfd_nonfatal (dummy_name);
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ret = 0;
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continue;
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}
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if (! bfd_set_format (abfd, bfd_object))
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{
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if (bfd_get_error () != bfd_error_invalid_operation)
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{
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bfd_nonfatal (p->name);
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ret = 0;
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}
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bfd_close_all_done (abfd);
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continue;
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}
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for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
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if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0))
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printf (" %s\n",
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bfd_printable_arch_mach ((enum bfd_architecture) a, 0));
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bfd_close_all_done (abfd);
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}
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unlink (dummy_name);
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free (dummy_name);
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return ret;
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}
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/* Print a table showing which architectures are supported for entries
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FIRST through LAST-1 of bfd_target_vector (targets across,
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architectures down). */
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static int
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display_info_table (int first, int last)
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{
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int t;
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int ret = 1;
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char *dummy_name;
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enum bfd_architecture a;
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/* Print heading of target names. */
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printf ("\n%*s", (int) LONGEST_ARCH, " ");
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for (t = first; t < last && bfd_target_vector[t]; t++)
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printf ("%s ", bfd_target_vector[t]->name);
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putchar ('\n');
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dummy_name = make_temp_file (NULL);
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for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
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if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
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{
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printf ("%*s ", (int) LONGEST_ARCH - 1,
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bfd_printable_arch_mach (a, 0));
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for (t = first; t < last && bfd_target_vector[t]; t++)
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{
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const bfd_target *p = bfd_target_vector[t];
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bfd_boolean ok = TRUE;
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bfd *abfd = bfd_openw (dummy_name, p->name);
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if (abfd == NULL)
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{
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bfd_nonfatal (p->name);
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ret = 0;
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ok = FALSE;
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}
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if (ok)
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{
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if (! bfd_set_format (abfd, bfd_object))
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{
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if (bfd_get_error () != bfd_error_invalid_operation)
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{
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bfd_nonfatal (p->name);
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ret = 0;
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}
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ok = FALSE;
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}
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}
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if (ok)
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{
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if (! bfd_set_arch_mach (abfd, a, 0))
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ok = FALSE;
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}
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if (ok)
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printf ("%s ", p->name);
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else
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{
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int l = strlen (p->name);
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while (l--)
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putchar ('-');
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putchar (' ');
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}
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if (abfd != NULL)
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bfd_close_all_done (abfd);
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}
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putchar ('\n');
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}
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unlink (dummy_name);
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free (dummy_name);
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return ret;
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}
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/* Print tables of all the target-architecture combinations that
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BFD has been configured to support. */
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static int
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display_target_tables (void)
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{
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int t;
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int columns;
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int ret = 1;
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char *colum;
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columns = 0;
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colum = getenv ("COLUMNS");
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if (colum != NULL)
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columns = atoi (colum);
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if (columns == 0)
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columns = 80;
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t = 0;
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while (bfd_target_vector[t] != NULL)
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{
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int oldt = t, wid;
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wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1;
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++t;
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while (wid < columns && bfd_target_vector[t] != NULL)
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{
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int newwid;
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newwid = wid + strlen (bfd_target_vector[t]->name) + 1;
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if (newwid >= columns)
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break;
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wid = newwid;
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++t;
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}
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if (! display_info_table (oldt, t))
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ret = 0;
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}
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return ret;
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}
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int
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display_info (void)
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{
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printf (_("BFD header file version %s\n"), BFD_VERSION_STRING);
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if (! display_target_list () || ! display_target_tables ())
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return 1;
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else
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return 0;
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}
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/* Display the archive header for an element as if it were an ls -l listing:
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Mode User\tGroup\tSize\tDate Name */
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void
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print_arelt_descr (FILE *file, bfd *abfd, bfd_boolean verbose)
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{
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struct stat buf;
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if (verbose)
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{
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if (bfd_stat_arch_elt (abfd, &buf) == 0)
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{
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char modebuf[11];
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char timebuf[40];
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time_t when = buf.st_mtime;
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const char *ctime_result = (const char *) ctime (&when);
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/* POSIX format: skip weekday and seconds from ctime output. */
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sprintf (timebuf, "%.12s %.4s", ctime_result + 4, ctime_result + 20);
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mode_string (buf.st_mode, modebuf);
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modebuf[10] = '\0';
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/* POSIX 1003.2/D11 says to skip first character (entry type). */
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fprintf (file, "%s %ld/%ld %6ld %s ", modebuf + 1,
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(long) buf.st_uid, (long) buf.st_gid,
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(long) buf.st_size, timebuf);
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}
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}
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fprintf (file, "%s\n", bfd_get_filename (abfd));
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}
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/* Return a path for a new temporary file in the same directory
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as file PATH. */
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static char *
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template_in_dir (const char *path)
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{
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#define template "stXXXXXX"
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const char *slash = strrchr (path, '/');
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char *tmpname;
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size_t len;
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#ifdef HAVE_DOS_BASED_FILE_SYSTEM
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{
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/* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
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char *bslash = strrchr (path, '\\');
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if (slash == NULL || (bslash != NULL && bslash > slash))
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slash = bslash;
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if (slash == NULL && path[0] != '\0' && path[1] == ':')
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slash = path + 1;
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}
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#endif
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if (slash != (char *) NULL)
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{
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len = slash - path;
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tmpname = xmalloc (len + sizeof (template) + 2);
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memcpy (tmpname, path, len);
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#ifdef HAVE_DOS_BASED_FILE_SYSTEM
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/* If tmpname is "X:", appending a slash will make it a root
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directory on drive X, which is NOT the same as the current
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directory on drive X. */
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if (len == 2 && tmpname[1] == ':')
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tmpname[len++] = '.';
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#endif
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tmpname[len++] = '/';
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}
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else
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{
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tmpname = xmalloc (sizeof (template));
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len = 0;
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}
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memcpy (tmpname + len, template, sizeof (template));
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return tmpname;
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#undef template
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}
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/* Return the name of a created temporary file in the same directory
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as FILENAME. */
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char *
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make_tempname (char *filename)
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{
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char *tmpname = template_in_dir (filename);
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int fd;
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#ifdef HAVE_MKSTEMP
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fd = mkstemp (tmpname);
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#else
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tmpname = mktemp (tmpname);
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if (tmpname == NULL)
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return NULL;
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fd = open (tmpname, O_RDWR | O_CREAT | O_EXCL, 0600);
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#endif
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if (fd == -1)
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return NULL;
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close (fd);
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return tmpname;
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}
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/* Return the name of a created temporary directory inside the
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directory containing FILENAME. */
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char *
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make_tempdir (char *filename)
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{
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char *tmpname = template_in_dir (filename);
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#ifdef HAVE_MKDTEMP
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return mkdtemp (tmpname);
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#else
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tmpname = mktemp (tmpname);
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if (tmpname == NULL)
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return NULL;
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#if defined (_WIN32) && !defined (__CYGWIN32__)
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if (mkdir (tmpname) != 0)
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return NULL;
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#else
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if (mkdir (tmpname, 0700) != 0)
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return NULL;
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#endif
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return tmpname;
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#endif
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}
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/* Parse a string into a VMA, with a fatal error if it can't be
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parsed. */
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bfd_vma
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parse_vma (const char *s, const char *arg)
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{
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bfd_vma ret;
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const char *end;
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ret = bfd_scan_vma (s, &end, 0);
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if (*end != '\0')
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fatal (_("%s: bad number: %s"), arg, s);
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return ret;
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}
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/* Returns the size of the named file. If the file does not
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exist, or if it is not a real file, then a suitable non-fatal
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error message is printed and zero is returned. */
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off_t
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get_file_size (const char * file_name)
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{
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struct stat statbuf;
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if (stat (file_name, &statbuf) < 0)
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{
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if (errno == ENOENT)
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non_fatal (_("'%s': No such file"), file_name);
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else
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non_fatal (_("Warning: could not locate '%s'. reason: %s"),
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file_name, strerror (errno));
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}
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else if (! S_ISREG (statbuf.st_mode))
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non_fatal (_("Warning: '%s' is not an ordinary file"), file_name);
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else
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return statbuf.st_size;
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return 0;
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}
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/* Return the filename in a static buffer. */
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const char *
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bfd_get_archive_filename (bfd *abfd)
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{
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static size_t curr = 0;
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static char *buf;
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size_t needed;
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assert (abfd != NULL);
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if (!abfd->my_archive)
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return bfd_get_filename (abfd);
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needed = (strlen (bfd_get_filename (abfd->my_archive))
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+ strlen (bfd_get_filename (abfd)) + 3);
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if (needed > curr)
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{
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if (curr)
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free (buf);
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curr = needed + (needed >> 1);
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buf = bfd_malloc (curr);
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/* If we can't malloc, fail safe by returning just the file name.
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This function is only used when building error messages. */
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if (!buf)
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{
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curr = 0;
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return bfd_get_filename (abfd);
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}
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}
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sprintf (buf, "%s(%s)", bfd_get_filename (abfd->my_archive),
|
||
bfd_get_filename (abfd));
|
||
return buf;
|
||
}
|