mirror of
https://github.com/darlinghq/darling-gdb.git
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b48c61bccb
`fail'. * dwarf2.c (decode_line_info): Remove unused local variable `basic_block'. * elfcode.h (elf_slurp_reloc_table_from_section): Remove unsed local varibale `s'. * tekhex.c (tekhex_write_object_contents): Remove unused local variable `bytes_written'. * aout-ns32k.c (MY_swap_std_reloc_out): Remove unused local variable `r_addend'. * elf32-dlx.c (dlx_rtype_to_howto): Remove breaks after returns. * elfxx-mips.c (_bfd_elf_mips_mach): Remove breaks after returns. (_bfd_ns32k_relocate_contents): Remove break after return. * elf.c (bfd_section_from_shdr): Remove breaks after returns.
2155 lines
60 KiB
C
2155 lines
60 KiB
C
/* BFD back-end for archive files (libraries).
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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2000, 2001, 2002, 2003, 2004, 2005
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Free Software Foundation, Inc.
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Written by Cygnus Support. Mostly Gumby Henkel-Wallace's fault.
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This file is part of BFD, the Binary File Descriptor library.
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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 02110-1301, USA. */
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/*
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@setfilename archive-info
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SECTION
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Archives
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DESCRIPTION
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An archive (or library) is just another BFD. It has a symbol
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table, although there's not much a user program will do with it.
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The big difference between an archive BFD and an ordinary BFD
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is that the archive doesn't have sections. Instead it has a
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chain of BFDs that are considered its contents. These BFDs can
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be manipulated like any other. The BFDs contained in an
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archive opened for reading will all be opened for reading. You
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may put either input or output BFDs into an archive opened for
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output; they will be handled correctly when the archive is closed.
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Use <<bfd_openr_next_archived_file>> to step through
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the contents of an archive opened for input. You don't
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have to read the entire archive if you don't want
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to! Read it until you find what you want.
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Archive contents of output BFDs are chained through the
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<<next>> pointer in a BFD. The first one is findable through
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the <<archive_head>> slot of the archive. Set it with
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<<bfd_set_archive_head>> (q.v.). A given BFD may be in only one
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open output archive at a time.
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As expected, the BFD archive code is more general than the
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archive code of any given environment. BFD archives may
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contain files of different formats (e.g., a.out and coff) and
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even different architectures. You may even place archives
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recursively into archives!
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This can cause unexpected confusion, since some archive
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formats are more expressive than others. For instance, Intel
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COFF archives can preserve long filenames; SunOS a.out archives
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cannot. If you move a file from the first to the second
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format and back again, the filename may be truncated.
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Likewise, different a.out environments have different
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conventions as to how they truncate filenames, whether they
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preserve directory names in filenames, etc. When
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interoperating with native tools, be sure your files are
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homogeneous.
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Beware: most of these formats do not react well to the
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presence of spaces in filenames. We do the best we can, but
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can't always handle this case due to restrictions in the format of
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archives. Many Unix utilities are braindead in regards to
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spaces and such in filenames anyway, so this shouldn't be much
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of a restriction.
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Archives are supported in BFD in <<archive.c>>.
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SUBSECTION
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Archive functions
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*/
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/* Assumes:
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o - all archive elements start on an even boundary, newline padded;
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o - all arch headers are char *;
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o - all arch headers are the same size (across architectures).
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*/
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/* Some formats provide a way to cram a long filename into the short
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(16 chars) space provided by a BSD archive. The trick is: make a
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special "file" in the front of the archive, sort of like the SYMDEF
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entry. If the filename is too long to fit, put it in the extended
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name table, and use its index as the filename. To prevent
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confusion prepend the index with a space. This means you can't
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have filenames that start with a space, but then again, many Unix
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utilities can't handle that anyway.
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This scheme unfortunately requires that you stand on your head in
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order to write an archive since you need to put a magic file at the
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front, and need to touch every entry to do so. C'est la vie.
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We support two variants of this idea:
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The SVR4 format (extended name table is named "//"),
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and an extended pseudo-BSD variant (extended name table is named
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"ARFILENAMES/"). The origin of the latter format is uncertain.
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BSD 4.4 uses a third scheme: It writes a long filename
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directly after the header. This allows 'ar q' to work.
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We currently can read BSD 4.4 archives, but not write them.
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*/
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/* Summary of archive member names:
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Symbol table (must be first):
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"__.SYMDEF " - Symbol table, Berkeley style, produced by ranlib.
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"/ " - Symbol table, system 5 style.
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Long name table (must be before regular file members):
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"// " - Long name table, System 5 R4 style.
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"ARFILENAMES/ " - Long name table, non-standard extended BSD (not BSD 4.4).
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Regular file members with short names:
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"filename.o/ " - Regular file, System 5 style (embedded spaces ok).
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"filename.o " - Regular file, Berkeley style (no embedded spaces).
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Regular files with long names (or embedded spaces, for BSD variants):
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"/18 " - SVR4 style, name at offset 18 in name table.
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"#1/23 " - Long name (or embedded spaces) 23 characters long,
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BSD 4.4 style, full name follows header.
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Implemented for reading, not writing.
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" 18 " - Long name 18 characters long, extended pseudo-BSD.
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*/
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#include "bfd.h"
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#include "sysdep.h"
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#include "libiberty.h"
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#include "libbfd.h"
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#include "aout/ar.h"
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#include "aout/ranlib.h"
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#include "safe-ctype.h"
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#include "hashtab.h"
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#ifndef errno
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extern int errno;
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#endif
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/* We keep a cache of archive filepointers to archive elements to
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speed up searching the archive by filepos. We only add an entry to
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the cache when we actually read one. We also don't sort the cache;
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it's generally short enough to search linearly.
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Note that the pointers here point to the front of the ar_hdr, not
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to the front of the contents! */
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struct ar_cache {
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file_ptr ptr;
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bfd *arbfd;
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};
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#define ar_padchar(abfd) ((abfd)->xvec->ar_pad_char)
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#define ar_maxnamelen(abfd) ((abfd)->xvec->ar_max_namelen)
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#define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
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#define arch_hdr(bfd) ((struct ar_hdr *) arch_eltdata(bfd)->arch_header)
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void
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_bfd_ar_spacepad (char *p, size_t n, const char *fmt, long val)
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{
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static char buf[20];
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size_t len;
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snprintf (buf, sizeof (buf), fmt, val);
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len = strlen (buf);
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if (len < n)
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{
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memcpy (p, buf, len);
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memset (p + len, ' ', n - len);
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}
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else
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memcpy (p, buf, n);
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}
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bfd_boolean
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_bfd_generic_mkarchive (bfd *abfd)
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{
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bfd_size_type amt = sizeof (struct artdata);
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abfd->tdata.aout_ar_data = bfd_zalloc (abfd, amt);
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if (bfd_ardata (abfd) == NULL)
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return FALSE;
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/* Already cleared by bfd_zalloc above.
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bfd_ardata (abfd)->cache = NULL;
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bfd_ardata (abfd)->archive_head = NULL;
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bfd_ardata (abfd)->symdefs = NULL;
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bfd_ardata (abfd)->extended_names = NULL;
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bfd_ardata (abfd)->extended_names_size = 0;
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bfd_ardata (abfd)->tdata = NULL; */
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return TRUE;
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}
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/*
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FUNCTION
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bfd_get_next_mapent
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SYNOPSIS
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symindex bfd_get_next_mapent
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(bfd *abfd, symindex previous, carsym **sym);
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DESCRIPTION
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Step through archive @var{abfd}'s symbol table (if it
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has one). Successively update @var{sym} with the next symbol's
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information, returning that symbol's (internal) index into the
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symbol table.
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Supply <<BFD_NO_MORE_SYMBOLS>> as the @var{previous} entry to get
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the first one; returns <<BFD_NO_MORE_SYMBOLS>> when you've already
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got the last one.
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A <<carsym>> is a canonical archive symbol. The only
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user-visible element is its name, a null-terminated string.
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*/
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symindex
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bfd_get_next_mapent (bfd *abfd, symindex prev, carsym **entry)
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{
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if (!bfd_has_map (abfd))
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{
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bfd_set_error (bfd_error_invalid_operation);
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return BFD_NO_MORE_SYMBOLS;
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}
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if (prev == BFD_NO_MORE_SYMBOLS)
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prev = 0;
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else
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++prev;
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if (prev >= bfd_ardata (abfd)->symdef_count)
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return BFD_NO_MORE_SYMBOLS;
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*entry = (bfd_ardata (abfd)->symdefs + prev);
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return prev;
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}
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/* To be called by backends only. */
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bfd *
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_bfd_create_empty_archive_element_shell (bfd *obfd)
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{
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return _bfd_new_bfd_contained_in (obfd);
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}
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/*
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FUNCTION
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bfd_set_archive_head
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SYNOPSIS
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bfd_boolean bfd_set_archive_head (bfd *output, bfd *new_head);
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DESCRIPTION
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Set the head of the chain of
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BFDs contained in the archive @var{output} to @var{new_head}.
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*/
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bfd_boolean
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bfd_set_archive_head (bfd *output_archive, bfd *new_head)
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{
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output_archive->archive_head = new_head;
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return TRUE;
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}
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bfd *
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_bfd_look_for_bfd_in_cache (bfd *arch_bfd, file_ptr filepos)
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{
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htab_t hash_table = bfd_ardata (arch_bfd)->cache;
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struct ar_cache m;
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m.ptr = filepos;
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if (hash_table)
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{
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struct ar_cache *entry = (struct ar_cache *) htab_find (hash_table, &m);
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if (!entry)
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return NULL;
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else
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return entry->arbfd;
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}
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else
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return NULL;
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}
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static hashval_t
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hash_file_ptr (const PTR p)
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{
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return (hashval_t) (((struct ar_cache *) p)->ptr);
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}
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/* Returns non-zero if P1 and P2 are equal. */
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static int
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eq_file_ptr (const PTR p1, const PTR p2)
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{
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struct ar_cache *arc1 = (struct ar_cache *) p1;
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struct ar_cache *arc2 = (struct ar_cache *) p2;
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return arc1->ptr == arc2->ptr;
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}
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/* Kind of stupid to call cons for each one, but we don't do too many. */
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bfd_boolean
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_bfd_add_bfd_to_archive_cache (bfd *arch_bfd, file_ptr filepos, bfd *new_elt)
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{
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struct ar_cache *cache;
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htab_t hash_table = bfd_ardata (arch_bfd)->cache;
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/* If the hash table hasn't been created, create it. */
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if (hash_table == NULL)
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{
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hash_table = htab_create_alloc (16, hash_file_ptr, eq_file_ptr,
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NULL, calloc, free);
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if (hash_table == NULL)
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return FALSE;
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bfd_ardata (arch_bfd)->cache = hash_table;
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}
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/* Insert new_elt into the hash table by filepos. */
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cache = bfd_zalloc (arch_bfd, sizeof (struct ar_cache));
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cache->ptr = filepos;
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cache->arbfd = new_elt;
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*htab_find_slot (hash_table, (const void *) cache, INSERT) = cache;
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return TRUE;
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}
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/* The name begins with space. Hence the rest of the name is an index into
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the string table. */
|
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static char *
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get_extended_arelt_filename (bfd *arch, const char *name)
|
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{
|
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unsigned long index = 0;
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|
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/* Should extract string so that I can guarantee not to overflow into
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the next region, but I'm too lazy. */
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errno = 0;
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/* Skip first char, which is '/' in SVR4 or ' ' in some other variants. */
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index = strtol (name + 1, NULL, 10);
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if (errno != 0 || index >= bfd_ardata (arch)->extended_names_size)
|
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{
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bfd_set_error (bfd_error_malformed_archive);
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return NULL;
|
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}
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return bfd_ardata (arch)->extended_names + index;
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}
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|
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/* This functions reads an arch header and returns an areltdata pointer, or
|
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NULL on error.
|
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|
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Presumes the file pointer is already in the right place (ie pointing
|
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to the ar_hdr in the file). Moves the file pointer; on success it
|
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should be pointing to the front of the file contents; on failure it
|
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could have been moved arbitrarily. */
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void *
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_bfd_generic_read_ar_hdr (bfd *abfd)
|
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{
|
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return _bfd_generic_read_ar_hdr_mag (abfd, NULL);
|
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}
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|
||
/* Alpha ECOFF uses an optional different ARFMAG value, so we have a
|
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variant of _bfd_generic_read_ar_hdr which accepts a magic string. */
|
||
|
||
void *
|
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_bfd_generic_read_ar_hdr_mag (bfd *abfd, const char *mag)
|
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{
|
||
struct ar_hdr hdr;
|
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char *hdrp = (char *) &hdr;
|
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size_t parsed_size;
|
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struct areltdata *ared;
|
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char *filename = NULL;
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bfd_size_type namelen = 0;
|
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bfd_size_type allocsize = sizeof (struct areltdata) + sizeof (struct ar_hdr);
|
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char *allocptr = 0;
|
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|
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if (bfd_bread (hdrp, sizeof (struct ar_hdr), abfd) != sizeof (struct ar_hdr))
|
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{
|
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if (bfd_get_error () != bfd_error_system_call)
|
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bfd_set_error (bfd_error_no_more_archived_files);
|
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return NULL;
|
||
}
|
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if (strncmp (hdr.ar_fmag, ARFMAG, 2) != 0
|
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&& (mag == NULL
|
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|| strncmp (hdr.ar_fmag, mag, 2) != 0))
|
||
{
|
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bfd_set_error (bfd_error_malformed_archive);
|
||
return NULL;
|
||
}
|
||
|
||
errno = 0;
|
||
parsed_size = strtol (hdr.ar_size, NULL, 10);
|
||
if (errno != 0)
|
||
{
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
return NULL;
|
||
}
|
||
|
||
/* Extract the filename from the archive - there are two ways to
|
||
specify an extended name table, either the first char of the
|
||
name is a space, or it's a slash. */
|
||
if ((hdr.ar_name[0] == '/'
|
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|| (hdr.ar_name[0] == ' '
|
||
&& memchr (hdr.ar_name, '/', ar_maxnamelen (abfd)) == NULL))
|
||
&& bfd_ardata (abfd)->extended_names != NULL)
|
||
{
|
||
filename = get_extended_arelt_filename (abfd, hdr.ar_name);
|
||
if (filename == NULL)
|
||
return NULL;
|
||
}
|
||
/* BSD4.4-style long filename.
|
||
Only implemented for reading, so far! */
|
||
else if (hdr.ar_name[0] == '#'
|
||
&& hdr.ar_name[1] == '1'
|
||
&& hdr.ar_name[2] == '/'
|
||
&& ISDIGIT (hdr.ar_name[3]))
|
||
{
|
||
/* BSD-4.4 extended name */
|
||
namelen = atoi (&hdr.ar_name[3]);
|
||
allocsize += namelen + 1;
|
||
parsed_size -= namelen;
|
||
|
||
allocptr = bfd_zalloc (abfd, allocsize);
|
||
if (allocptr == NULL)
|
||
return NULL;
|
||
filename = (allocptr
|
||
+ sizeof (struct areltdata)
|
||
+ sizeof (struct ar_hdr));
|
||
if (bfd_bread (filename, namelen, abfd) != namelen)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_no_more_archived_files);
|
||
return NULL;
|
||
}
|
||
filename[namelen] = '\0';
|
||
}
|
||
else
|
||
{
|
||
/* We judge the end of the name by looking for '/' or ' '.
|
||
Note: The SYSV format (terminated by '/') allows embedded
|
||
spaces, so only look for ' ' if we don't find '/'. */
|
||
|
||
char *e;
|
||
e = memchr (hdr.ar_name, '\0', ar_maxnamelen (abfd));
|
||
if (e == NULL)
|
||
{
|
||
e = memchr (hdr.ar_name, '/', ar_maxnamelen (abfd));
|
||
if (e == NULL)
|
||
e = memchr (hdr.ar_name, ' ', ar_maxnamelen (abfd));
|
||
}
|
||
|
||
if (e != NULL)
|
||
namelen = e - hdr.ar_name;
|
||
else
|
||
{
|
||
/* If we didn't find a termination character, then the name
|
||
must be the entire field. */
|
||
namelen = ar_maxnamelen (abfd);
|
||
}
|
||
|
||
allocsize += namelen + 1;
|
||
}
|
||
|
||
if (!allocptr)
|
||
{
|
||
allocptr = bfd_zalloc (abfd, allocsize);
|
||
if (allocptr == NULL)
|
||
return NULL;
|
||
}
|
||
|
||
ared = (struct areltdata *) allocptr;
|
||
|
||
ared->arch_header = allocptr + sizeof (struct areltdata);
|
||
memcpy (ared->arch_header, &hdr, sizeof (struct ar_hdr));
|
||
ared->parsed_size = parsed_size;
|
||
|
||
if (filename != NULL)
|
||
ared->filename = filename;
|
||
else
|
||
{
|
||
ared->filename = allocptr + (sizeof (struct areltdata) +
|
||
sizeof (struct ar_hdr));
|
||
if (namelen)
|
||
memcpy (ared->filename, hdr.ar_name, namelen);
|
||
ared->filename[namelen] = '\0';
|
||
}
|
||
|
||
return ared;
|
||
}
|
||
|
||
/* This is an internal function; it's mainly used when indexing
|
||
through the archive symbol table, but also used to get the next
|
||
element, since it handles the bookkeeping so nicely for us. */
|
||
|
||
bfd *
|
||
_bfd_get_elt_at_filepos (bfd *archive, file_ptr filepos)
|
||
{
|
||
struct areltdata *new_areldata;
|
||
bfd *n_nfd;
|
||
|
||
if (archive->my_archive)
|
||
{
|
||
filepos += archive->origin;
|
||
archive = archive->my_archive;
|
||
}
|
||
|
||
n_nfd = _bfd_look_for_bfd_in_cache (archive, filepos);
|
||
if (n_nfd)
|
||
return n_nfd;
|
||
|
||
if (0 > bfd_seek (archive, filepos, SEEK_SET))
|
||
return NULL;
|
||
|
||
if ((new_areldata = _bfd_read_ar_hdr (archive)) == NULL)
|
||
return NULL;
|
||
|
||
n_nfd = _bfd_create_empty_archive_element_shell (archive);
|
||
if (n_nfd == NULL)
|
||
{
|
||
bfd_release (archive, new_areldata);
|
||
return NULL;
|
||
}
|
||
|
||
n_nfd->origin = bfd_tell (archive);
|
||
n_nfd->arelt_data = new_areldata;
|
||
n_nfd->filename = new_areldata->filename;
|
||
|
||
if (_bfd_add_bfd_to_archive_cache (archive, filepos, n_nfd))
|
||
return n_nfd;
|
||
|
||
/* Huh? */
|
||
bfd_release (archive, n_nfd);
|
||
bfd_release (archive, new_areldata);
|
||
return NULL;
|
||
}
|
||
|
||
/* Return the BFD which is referenced by the symbol in ABFD indexed by
|
||
INDEX. INDEX should have been returned by bfd_get_next_mapent. */
|
||
|
||
bfd *
|
||
_bfd_generic_get_elt_at_index (bfd *abfd, symindex index)
|
||
{
|
||
carsym *entry;
|
||
|
||
entry = bfd_ardata (abfd)->symdefs + index;
|
||
return _bfd_get_elt_at_filepos (abfd, entry->file_offset);
|
||
}
|
||
|
||
/*
|
||
FUNCTION
|
||
bfd_openr_next_archived_file
|
||
|
||
SYNOPSIS
|
||
bfd *bfd_openr_next_archived_file (bfd *archive, bfd *previous);
|
||
|
||
DESCRIPTION
|
||
Provided a BFD, @var{archive}, containing an archive and NULL, open
|
||
an input BFD on the first contained element and returns that.
|
||
Subsequent calls should pass
|
||
the archive and the previous return value to return a created
|
||
BFD to the next contained element. NULL is returned when there
|
||
are no more.
|
||
*/
|
||
|
||
bfd *
|
||
bfd_openr_next_archived_file (bfd *archive, bfd *last_file)
|
||
{
|
||
if ((bfd_get_format (archive) != bfd_archive) ||
|
||
(archive->direction == write_direction))
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return NULL;
|
||
}
|
||
|
||
return BFD_SEND (archive,
|
||
openr_next_archived_file, (archive, last_file));
|
||
}
|
||
|
||
bfd *
|
||
bfd_generic_openr_next_archived_file (bfd *archive, bfd *last_file)
|
||
{
|
||
file_ptr filestart;
|
||
|
||
if (!last_file)
|
||
filestart = bfd_ardata (archive)->first_file_filepos;
|
||
else
|
||
{
|
||
unsigned int size = arelt_size (last_file);
|
||
filestart = last_file->origin + size;
|
||
if (archive->my_archive)
|
||
filestart -= archive->origin;
|
||
/* Pad to an even boundary...
|
||
Note that last_file->origin can be odd in the case of
|
||
BSD-4.4-style element with a long odd size. */
|
||
filestart += filestart % 2;
|
||
}
|
||
|
||
return _bfd_get_elt_at_filepos (archive, filestart);
|
||
}
|
||
|
||
const bfd_target *
|
||
bfd_generic_archive_p (bfd *abfd)
|
||
{
|
||
struct artdata *tdata_hold;
|
||
char armag[SARMAG + 1];
|
||
bfd_size_type amt;
|
||
|
||
if (bfd_bread (armag, SARMAG, abfd) != SARMAG)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return NULL;
|
||
}
|
||
|
||
if (strncmp (armag, ARMAG, SARMAG) != 0 &&
|
||
strncmp (armag, ARMAGB, SARMAG) != 0)
|
||
return 0;
|
||
|
||
tdata_hold = bfd_ardata (abfd);
|
||
|
||
amt = sizeof (struct artdata);
|
||
bfd_ardata (abfd) = bfd_zalloc (abfd, amt);
|
||
if (bfd_ardata (abfd) == NULL)
|
||
{
|
||
bfd_ardata (abfd) = tdata_hold;
|
||
return NULL;
|
||
}
|
||
|
||
bfd_ardata (abfd)->first_file_filepos = SARMAG;
|
||
/* Cleared by bfd_zalloc above.
|
||
bfd_ardata (abfd)->cache = NULL;
|
||
bfd_ardata (abfd)->archive_head = NULL;
|
||
bfd_ardata (abfd)->symdefs = NULL;
|
||
bfd_ardata (abfd)->extended_names = NULL;
|
||
bfd_ardata (abfd)->extended_names_size = 0;
|
||
bfd_ardata (abfd)->tdata = NULL; */
|
||
|
||
if (!BFD_SEND (abfd, _bfd_slurp_armap, (abfd))
|
||
|| !BFD_SEND (abfd, _bfd_slurp_extended_name_table, (abfd)))
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
bfd_release (abfd, bfd_ardata (abfd));
|
||
bfd_ardata (abfd) = tdata_hold;
|
||
return NULL;
|
||
}
|
||
|
||
if (bfd_has_map (abfd))
|
||
{
|
||
bfd *first;
|
||
|
||
/* This archive has a map, so we may presume that the contents
|
||
are object files. Make sure that if the first file in the
|
||
archive can be recognized as an object file, it is for this
|
||
target. If not, assume that this is the wrong format. If
|
||
the first file is not an object file, somebody is doing
|
||
something weird, and we permit it so that ar -t will work.
|
||
|
||
This is done because any normal format will recognize any
|
||
normal archive, regardless of the format of the object files.
|
||
We do accept an empty archive. */
|
||
|
||
first = bfd_openr_next_archived_file (abfd, NULL);
|
||
if (first != NULL)
|
||
{
|
||
first->target_defaulted = FALSE;
|
||
if (bfd_check_format (first, bfd_object)
|
||
&& first->xvec != abfd->xvec)
|
||
{
|
||
bfd_set_error (bfd_error_wrong_object_format);
|
||
bfd_ardata (abfd) = tdata_hold;
|
||
return NULL;
|
||
}
|
||
/* And we ought to close `first' here too. */
|
||
}
|
||
}
|
||
|
||
return abfd->xvec;
|
||
}
|
||
|
||
/* Some constants for a 32 bit BSD archive structure. We do not
|
||
support 64 bit archives presently; so far as I know, none actually
|
||
exist. Supporting them would require changing these constants, and
|
||
changing some H_GET_32 to H_GET_64. */
|
||
|
||
/* The size of an external symdef structure. */
|
||
#define BSD_SYMDEF_SIZE 8
|
||
|
||
/* The offset from the start of a symdef structure to the file offset. */
|
||
#define BSD_SYMDEF_OFFSET_SIZE 4
|
||
|
||
/* The size of the symdef count. */
|
||
#define BSD_SYMDEF_COUNT_SIZE 4
|
||
|
||
/* The size of the string count. */
|
||
#define BSD_STRING_COUNT_SIZE 4
|
||
|
||
/* Returns FALSE on error, TRUE otherwise. */
|
||
|
||
static bfd_boolean
|
||
do_slurp_bsd_armap (bfd *abfd)
|
||
{
|
||
struct areltdata *mapdata;
|
||
unsigned int counter;
|
||
bfd_byte *raw_armap, *rbase;
|
||
struct artdata *ardata = bfd_ardata (abfd);
|
||
char *stringbase;
|
||
bfd_size_type parsed_size, amt;
|
||
carsym *set;
|
||
|
||
mapdata = _bfd_read_ar_hdr (abfd);
|
||
if (mapdata == NULL)
|
||
return FALSE;
|
||
parsed_size = mapdata->parsed_size;
|
||
bfd_release (abfd, mapdata); /* Don't need it any more. */
|
||
|
||
raw_armap = bfd_zalloc (abfd, parsed_size);
|
||
if (raw_armap == NULL)
|
||
return FALSE;
|
||
|
||
if (bfd_bread (raw_armap, parsed_size, abfd) != parsed_size)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
byebye:
|
||
bfd_release (abfd, raw_armap);
|
||
return FALSE;
|
||
}
|
||
|
||
ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
|
||
|
||
if (ardata->symdef_count * BSD_SYMDEF_SIZE >
|
||
parsed_size - BSD_SYMDEF_COUNT_SIZE)
|
||
{
|
||
/* Probably we're using the wrong byte ordering. */
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
goto byebye;
|
||
}
|
||
|
||
ardata->cache = 0;
|
||
rbase = raw_armap + BSD_SYMDEF_COUNT_SIZE;
|
||
stringbase = ((char *) rbase
|
||
+ ardata->symdef_count * BSD_SYMDEF_SIZE
|
||
+ BSD_STRING_COUNT_SIZE);
|
||
amt = ardata->symdef_count * sizeof (carsym);
|
||
ardata->symdefs = bfd_alloc (abfd, amt);
|
||
if (!ardata->symdefs)
|
||
return FALSE;
|
||
|
||
for (counter = 0, set = ardata->symdefs;
|
||
counter < ardata->symdef_count;
|
||
counter++, set++, rbase += BSD_SYMDEF_SIZE)
|
||
{
|
||
set->name = H_GET_32 (abfd, rbase) + stringbase;
|
||
set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
|
||
}
|
||
|
||
ardata->first_file_filepos = bfd_tell (abfd);
|
||
/* Pad to an even boundary if you have to. */
|
||
ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
|
||
/* FIXME, we should provide some way to free raw_ardata when
|
||
we are done using the strings from it. For now, it seems
|
||
to be allocated on an objalloc anyway... */
|
||
bfd_has_map (abfd) = TRUE;
|
||
return TRUE;
|
||
}
|
||
|
||
/* Returns FALSE on error, TRUE otherwise. */
|
||
|
||
static bfd_boolean
|
||
do_slurp_coff_armap (bfd *abfd)
|
||
{
|
||
struct areltdata *mapdata;
|
||
int *raw_armap, *rawptr;
|
||
struct artdata *ardata = bfd_ardata (abfd);
|
||
char *stringbase;
|
||
bfd_size_type stringsize;
|
||
unsigned int parsed_size;
|
||
carsym *carsyms;
|
||
bfd_size_type nsymz; /* Number of symbols in armap. */
|
||
bfd_vma (*swap) (const void *);
|
||
char int_buf[sizeof (long)];
|
||
bfd_size_type carsym_size, ptrsize;
|
||
unsigned int i;
|
||
|
||
mapdata = _bfd_read_ar_hdr (abfd);
|
||
if (mapdata == NULL)
|
||
return FALSE;
|
||
parsed_size = mapdata->parsed_size;
|
||
bfd_release (abfd, mapdata); /* Don't need it any more. */
|
||
|
||
if (bfd_bread (int_buf, 4, abfd) != 4)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
return FALSE;
|
||
}
|
||
/* It seems that all numeric information in a coff archive is always
|
||
in big endian format, nomatter the host or target. */
|
||
swap = bfd_getb32;
|
||
nsymz = bfd_getb32 (int_buf);
|
||
stringsize = parsed_size - (4 * nsymz) - 4;
|
||
|
||
/* ... except that some archive formats are broken, and it may be our
|
||
fault - the i960 little endian coff sometimes has big and sometimes
|
||
little, because our tools changed. Here's a horrible hack to clean
|
||
up the crap. */
|
||
|
||
if (stringsize > 0xfffff
|
||
&& bfd_get_arch (abfd) == bfd_arch_i960
|
||
&& bfd_get_flavour (abfd) == bfd_target_coff_flavour)
|
||
{
|
||
/* This looks dangerous, let's do it the other way around. */
|
||
nsymz = bfd_getl32 (int_buf);
|
||
stringsize = parsed_size - (4 * nsymz) - 4;
|
||
swap = bfd_getl32;
|
||
}
|
||
|
||
/* The coff armap must be read sequentially. So we construct a
|
||
bsd-style one in core all at once, for simplicity. */
|
||
|
||
if (nsymz > ~ (bfd_size_type) 0 / sizeof (carsym))
|
||
return FALSE;
|
||
|
||
carsym_size = (nsymz * sizeof (carsym));
|
||
ptrsize = (4 * nsymz);
|
||
|
||
if (carsym_size + stringsize + 1 <= carsym_size)
|
||
return FALSE;
|
||
|
||
ardata->symdefs = bfd_zalloc (abfd, carsym_size + stringsize + 1);
|
||
if (ardata->symdefs == NULL)
|
||
return FALSE;
|
||
carsyms = ardata->symdefs;
|
||
stringbase = ((char *) ardata->symdefs) + carsym_size;
|
||
|
||
/* Allocate and read in the raw offsets. */
|
||
raw_armap = bfd_alloc (abfd, ptrsize);
|
||
if (raw_armap == NULL)
|
||
goto release_symdefs;
|
||
if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
|
||
|| (bfd_bread (stringbase, stringsize, abfd) != stringsize))
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
goto release_raw_armap;
|
||
}
|
||
|
||
/* OK, build the carsyms. */
|
||
for (i = 0; i < nsymz; i++)
|
||
{
|
||
rawptr = raw_armap + i;
|
||
carsyms->file_offset = swap ((bfd_byte *) rawptr);
|
||
carsyms->name = stringbase;
|
||
stringbase += strlen (stringbase) + 1;
|
||
carsyms++;
|
||
}
|
||
*stringbase = 0;
|
||
|
||
ardata->symdef_count = nsymz;
|
||
ardata->first_file_filepos = bfd_tell (abfd);
|
||
/* Pad to an even boundary if you have to. */
|
||
ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
|
||
|
||
bfd_has_map (abfd) = TRUE;
|
||
bfd_release (abfd, raw_armap);
|
||
|
||
/* Check for a second archive header (as used by PE). */
|
||
{
|
||
struct areltdata *tmp;
|
||
|
||
bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET);
|
||
tmp = _bfd_read_ar_hdr (abfd);
|
||
if (tmp != NULL)
|
||
{
|
||
if (tmp->arch_header[0] == '/'
|
||
&& tmp->arch_header[1] == ' ')
|
||
{
|
||
ardata->first_file_filepos +=
|
||
(tmp->parsed_size + sizeof (struct ar_hdr) + 1) & ~(unsigned) 1;
|
||
}
|
||
bfd_release (abfd, tmp);
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
|
||
release_raw_armap:
|
||
bfd_release (abfd, raw_armap);
|
||
release_symdefs:
|
||
bfd_release (abfd, (ardata)->symdefs);
|
||
return FALSE;
|
||
}
|
||
|
||
/* This routine can handle either coff-style or bsd-style armaps.
|
||
Returns FALSE on error, TRUE otherwise */
|
||
|
||
bfd_boolean
|
||
bfd_slurp_armap (bfd *abfd)
|
||
{
|
||
char nextname[17];
|
||
int i = bfd_bread (nextname, 16, abfd);
|
||
|
||
if (i == 0)
|
||
return TRUE;
|
||
if (i != 16)
|
||
return FALSE;
|
||
|
||
if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
|
||
return FALSE;
|
||
|
||
if (!strncmp (nextname, "__.SYMDEF ", 16)
|
||
|| !strncmp (nextname, "__.SYMDEF/ ", 16)) /* old Linux archives */
|
||
return do_slurp_bsd_armap (abfd);
|
||
else if (!strncmp (nextname, "/ ", 16))
|
||
return do_slurp_coff_armap (abfd);
|
||
else if (!strncmp (nextname, "/SYM64/ ", 16))
|
||
{
|
||
/* 64bit ELF (Irix 6) archive. */
|
||
#ifdef BFD64
|
||
extern bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
|
||
return bfd_elf64_archive_slurp_armap (abfd);
|
||
#else
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
return FALSE;
|
||
#endif
|
||
}
|
||
|
||
bfd_has_map (abfd) = FALSE;
|
||
return TRUE;
|
||
}
|
||
|
||
/* Returns FALSE on error, TRUE otherwise. */
|
||
/* Flavor 2 of a bsd armap, similar to bfd_slurp_bsd_armap except the
|
||
header is in a slightly different order and the map name is '/'.
|
||
This flavour is used by hp300hpux. */
|
||
|
||
#define HPUX_SYMDEF_COUNT_SIZE 2
|
||
|
||
bfd_boolean
|
||
bfd_slurp_bsd_armap_f2 (bfd *abfd)
|
||
{
|
||
struct areltdata *mapdata;
|
||
char nextname[17];
|
||
unsigned int counter;
|
||
bfd_byte *raw_armap, *rbase;
|
||
struct artdata *ardata = bfd_ardata (abfd);
|
||
char *stringbase;
|
||
unsigned int stringsize;
|
||
bfd_size_type amt;
|
||
carsym *set;
|
||
int i = bfd_bread (nextname, 16, abfd);
|
||
|
||
if (i == 0)
|
||
return TRUE;
|
||
if (i != 16)
|
||
return FALSE;
|
||
|
||
/* The archive has at least 16 bytes in it. */
|
||
if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
|
||
return FALSE;
|
||
|
||
if (!strncmp (nextname, "__.SYMDEF ", 16)
|
||
|| !strncmp (nextname, "__.SYMDEF/ ", 16)) /* Old Linux archives. */
|
||
return do_slurp_bsd_armap (abfd);
|
||
|
||
if (strncmp (nextname, "/ ", 16))
|
||
{
|
||
bfd_has_map (abfd) = FALSE;
|
||
return TRUE;
|
||
}
|
||
|
||
mapdata = _bfd_read_ar_hdr (abfd);
|
||
if (mapdata == NULL)
|
||
return FALSE;
|
||
|
||
amt = mapdata->parsed_size;
|
||
raw_armap = bfd_zalloc (abfd, amt);
|
||
if (raw_armap == NULL)
|
||
{
|
||
byebye:
|
||
bfd_release (abfd, mapdata);
|
||
return FALSE;
|
||
}
|
||
|
||
if (bfd_bread (raw_armap, amt, abfd) != amt)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
byebyebye:
|
||
bfd_release (abfd, raw_armap);
|
||
goto byebye;
|
||
}
|
||
|
||
ardata->symdef_count = H_GET_16 (abfd, raw_armap);
|
||
|
||
if (ardata->symdef_count * BSD_SYMDEF_SIZE
|
||
> mapdata->parsed_size - HPUX_SYMDEF_COUNT_SIZE)
|
||
{
|
||
/* Probably we're using the wrong byte ordering. */
|
||
bfd_set_error (bfd_error_wrong_format);
|
||
goto byebyebye;
|
||
}
|
||
|
||
ardata->cache = 0;
|
||
|
||
stringsize = H_GET_32 (abfd, raw_armap + HPUX_SYMDEF_COUNT_SIZE);
|
||
/* Skip sym count and string sz. */
|
||
stringbase = ((char *) raw_armap
|
||
+ HPUX_SYMDEF_COUNT_SIZE
|
||
+ BSD_STRING_COUNT_SIZE);
|
||
rbase = (bfd_byte *) stringbase + stringsize;
|
||
amt = ardata->symdef_count * BSD_SYMDEF_SIZE;
|
||
ardata->symdefs = bfd_alloc (abfd, amt);
|
||
if (!ardata->symdefs)
|
||
return FALSE;
|
||
|
||
for (counter = 0, set = ardata->symdefs;
|
||
counter < ardata->symdef_count;
|
||
counter++, set++, rbase += BSD_SYMDEF_SIZE)
|
||
{
|
||
set->name = H_GET_32 (abfd, rbase) + stringbase;
|
||
set->file_offset = H_GET_32 (abfd, rbase + BSD_SYMDEF_OFFSET_SIZE);
|
||
}
|
||
|
||
ardata->first_file_filepos = bfd_tell (abfd);
|
||
/* Pad to an even boundary if you have to. */
|
||
ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
|
||
/* FIXME, we should provide some way to free raw_ardata when
|
||
we are done using the strings from it. For now, it seems
|
||
to be allocated on an objalloc anyway... */
|
||
bfd_has_map (abfd) = TRUE;
|
||
return TRUE;
|
||
}
|
||
|
||
/** Extended name table.
|
||
|
||
Normally archives support only 14-character filenames.
|
||
|
||
Intel has extended the format: longer names are stored in a special
|
||
element (the first in the archive, or second if there is an armap);
|
||
the name in the ar_hdr is replaced by <space><index into filename
|
||
element>. Index is the P.R. of an int (decimal). Data General have
|
||
extended the format by using the prefix // for the special element. */
|
||
|
||
/* Returns FALSE on error, TRUE otherwise. */
|
||
|
||
bfd_boolean
|
||
_bfd_slurp_extended_name_table (bfd *abfd)
|
||
{
|
||
char nextname[17];
|
||
struct areltdata *namedata;
|
||
bfd_size_type amt;
|
||
|
||
/* FIXME: Formatting sucks here, and in case of failure of BFD_READ,
|
||
we probably don't want to return TRUE. */
|
||
bfd_seek (abfd, bfd_ardata (abfd)->first_file_filepos, SEEK_SET);
|
||
if (bfd_bread (nextname, 16, abfd) == 16)
|
||
{
|
||
if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
|
||
return FALSE;
|
||
|
||
if (strncmp (nextname, "ARFILENAMES/ ", 16) != 0 &&
|
||
strncmp (nextname, "// ", 16) != 0)
|
||
{
|
||
bfd_ardata (abfd)->extended_names = NULL;
|
||
bfd_ardata (abfd)->extended_names_size = 0;
|
||
return TRUE;
|
||
}
|
||
|
||
namedata = _bfd_read_ar_hdr (abfd);
|
||
if (namedata == NULL)
|
||
return FALSE;
|
||
|
||
amt = namedata->parsed_size;
|
||
if (amt + 1 == 0)
|
||
goto byebye;
|
||
|
||
bfd_ardata (abfd)->extended_names_size = amt;
|
||
bfd_ardata (abfd)->extended_names = bfd_zalloc (abfd, amt + 1);
|
||
if (bfd_ardata (abfd)->extended_names == NULL)
|
||
{
|
||
byebye:
|
||
bfd_release (abfd, namedata);
|
||
return FALSE;
|
||
}
|
||
|
||
if (bfd_bread (bfd_ardata (abfd)->extended_names, amt, abfd) != amt)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
bfd_release (abfd, (bfd_ardata (abfd)->extended_names));
|
||
bfd_ardata (abfd)->extended_names = NULL;
|
||
goto byebye;
|
||
}
|
||
|
||
/* Since the archive is supposed to be printable if it contains
|
||
text, the entries in the list are newline-padded, not null
|
||
padded. In SVR4-style archives, the names also have a
|
||
trailing '/'. DOS/NT created archive often have \ in them
|
||
We'll fix all problems here.. */
|
||
{
|
||
char *ext_names = bfd_ardata (abfd)->extended_names;
|
||
char *temp = ext_names;
|
||
char *limit = temp + namedata->parsed_size;
|
||
for (; temp < limit; ++temp)
|
||
{
|
||
if (*temp == '\012')
|
||
temp[temp > ext_names && temp[-1] == '/' ? -1 : 0] = '\0';
|
||
if (*temp == '\\')
|
||
*temp = '/';
|
||
}
|
||
*limit = '\0';
|
||
}
|
||
|
||
/* Pad to an even boundary if you have to. */
|
||
bfd_ardata (abfd)->first_file_filepos = bfd_tell (abfd);
|
||
bfd_ardata (abfd)->first_file_filepos +=
|
||
(bfd_ardata (abfd)->first_file_filepos) % 2;
|
||
|
||
/* FIXME, we can't release namedata here because it was allocated
|
||
below extended_names on the objalloc... */
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
#ifdef VMS
|
||
|
||
/* Return a copy of the stuff in the filename between any :]> and a
|
||
semicolon. */
|
||
|
||
static const char *
|
||
normalize (bfd *abfd, const char *file)
|
||
{
|
||
const char *first;
|
||
const char *last;
|
||
char *copy;
|
||
|
||
first = file + strlen (file) - 1;
|
||
last = first + 1;
|
||
|
||
while (first != file)
|
||
{
|
||
if (*first == ';')
|
||
last = first;
|
||
if (*first == ':' || *first == ']' || *first == '>')
|
||
{
|
||
first++;
|
||
break;
|
||
}
|
||
first--;
|
||
}
|
||
|
||
copy = bfd_alloc (abfd, last - first + 1);
|
||
if (copy == NULL)
|
||
return NULL;
|
||
|
||
memcpy (copy, first, last - first);
|
||
copy[last - first] = 0;
|
||
|
||
return copy;
|
||
}
|
||
|
||
#else
|
||
static const char *
|
||
normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
|
||
{
|
||
const char *filename = strrchr (file, '/');
|
||
|
||
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
|
||
{
|
||
/* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
|
||
char *bslash = strrchr (file, '\\');
|
||
if (filename == NULL || (bslash != NULL && bslash > filename))
|
||
filename = bslash;
|
||
if (filename == NULL && file[0] != '\0' && file[1] == ':')
|
||
filename = file + 1;
|
||
}
|
||
#endif
|
||
if (filename != NULL)
|
||
filename++;
|
||
else
|
||
filename = file;
|
||
return filename;
|
||
}
|
||
#endif
|
||
|
||
/* Build a BFD style extended name table. */
|
||
|
||
bfd_boolean
|
||
_bfd_archive_bsd_construct_extended_name_table (bfd *abfd,
|
||
char **tabloc,
|
||
bfd_size_type *tablen,
|
||
const char **name)
|
||
{
|
||
*name = "ARFILENAMES/";
|
||
return _bfd_construct_extended_name_table (abfd, FALSE, tabloc, tablen);
|
||
}
|
||
|
||
/* Build an SVR4 style extended name table. */
|
||
|
||
bfd_boolean
|
||
_bfd_archive_coff_construct_extended_name_table (bfd *abfd,
|
||
char **tabloc,
|
||
bfd_size_type *tablen,
|
||
const char **name)
|
||
{
|
||
*name = "//";
|
||
return _bfd_construct_extended_name_table (abfd, TRUE, tabloc, tablen);
|
||
}
|
||
|
||
/* Follows archive_head and produces an extended name table if
|
||
necessary. Returns (in tabloc) a pointer to an extended name
|
||
table, and in tablen the length of the table. If it makes an entry
|
||
it clobbers the filename so that the element may be written without
|
||
further massage. Returns TRUE if it ran successfully, FALSE if
|
||
something went wrong. A successful return may still involve a
|
||
zero-length tablen! */
|
||
|
||
bfd_boolean
|
||
_bfd_construct_extended_name_table (bfd *abfd,
|
||
bfd_boolean trailing_slash,
|
||
char **tabloc,
|
||
bfd_size_type *tablen)
|
||
{
|
||
unsigned int maxname = abfd->xvec->ar_max_namelen;
|
||
bfd_size_type total_namelen = 0;
|
||
bfd *current;
|
||
char *strptr;
|
||
|
||
*tablen = 0;
|
||
|
||
/* Figure out how long the table should be. */
|
||
for (current = abfd->archive_head; current != NULL; current = current->next)
|
||
{
|
||
const char *normal;
|
||
unsigned int thislen;
|
||
|
||
normal = normalize (current, current->filename);
|
||
if (normal == NULL)
|
||
return FALSE;
|
||
|
||
thislen = strlen (normal);
|
||
|
||
if (thislen > maxname
|
||
&& (bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
|
||
thislen = maxname;
|
||
|
||
if (thislen > maxname)
|
||
{
|
||
/* Add one to leave room for \n. */
|
||
total_namelen += thislen + 1;
|
||
if (trailing_slash)
|
||
{
|
||
/* Leave room for trailing slash. */
|
||
++total_namelen;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
struct ar_hdr *hdr = arch_hdr (current);
|
||
if (strncmp (normal, hdr->ar_name, thislen) != 0
|
||
|| (thislen < sizeof hdr->ar_name
|
||
&& hdr->ar_name[thislen] != ar_padchar (current)))
|
||
{
|
||
/* Must have been using extended format even though it
|
||
didn't need to. Fix it to use normal format. */
|
||
memcpy (hdr->ar_name, normal, thislen);
|
||
if (thislen < maxname
|
||
|| (thislen == maxname && thislen < sizeof hdr->ar_name))
|
||
hdr->ar_name[thislen] = ar_padchar (current);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (total_namelen == 0)
|
||
return TRUE;
|
||
|
||
*tabloc = bfd_zalloc (abfd, total_namelen);
|
||
if (*tabloc == NULL)
|
||
return FALSE;
|
||
|
||
*tablen = total_namelen;
|
||
strptr = *tabloc;
|
||
|
||
for (current = abfd->archive_head; current != NULL; current =
|
||
current->next)
|
||
{
|
||
const char *normal;
|
||
unsigned int thislen;
|
||
|
||
normal = normalize (current, current->filename);
|
||
if (normal == NULL)
|
||
return FALSE;
|
||
|
||
thislen = strlen (normal);
|
||
if (thislen > maxname)
|
||
{
|
||
/* Works for now; may need to be re-engineered if we
|
||
encounter an oddball archive format and want to
|
||
generalise this hack. */
|
||
struct ar_hdr *hdr = arch_hdr (current);
|
||
strcpy (strptr, normal);
|
||
if (! trailing_slash)
|
||
strptr[thislen] = '\012';
|
||
else
|
||
{
|
||
strptr[thislen] = '/';
|
||
strptr[thislen + 1] = '\012';
|
||
}
|
||
hdr->ar_name[0] = ar_padchar (current);
|
||
_bfd_ar_spacepad (hdr->ar_name + 1, maxname - 1, "%-ld",
|
||
strptr - *tabloc);
|
||
strptr += thislen + 1;
|
||
if (trailing_slash)
|
||
++strptr;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* A couple of functions for creating ar_hdrs. */
|
||
|
||
#ifdef HPUX_LARGE_AR_IDS
|
||
/* Function to encode large UID/GID values according to HP. */
|
||
|
||
static void
|
||
hpux_uid_gid_encode (char str[6], long int id)
|
||
{
|
||
int cnt;
|
||
|
||
str[5] = '@' + (id & 3);
|
||
id >>= 2;
|
||
|
||
for (cnt = 4; cnt >= 0; ++cnt, id >>= 6)
|
||
str[cnt] = ' ' + (id & 0x3f);
|
||
}
|
||
#endif /* HPUX_LARGE_AR_IDS */
|
||
|
||
#ifndef HAVE_GETUID
|
||
#define getuid() 0
|
||
#endif
|
||
|
||
#ifndef HAVE_GETGID
|
||
#define getgid() 0
|
||
#endif
|
||
|
||
/* Takes a filename, returns an arelt_data for it, or NULL if it can't
|
||
make one. The filename must refer to a filename in the filesystem.
|
||
The filename field of the ar_hdr will NOT be initialized. If member
|
||
is set, and it's an in-memory bfd, we fake it. */
|
||
|
||
static struct areltdata *
|
||
bfd_ar_hdr_from_filesystem (bfd *abfd, const char *filename, bfd *member)
|
||
{
|
||
struct stat status;
|
||
struct areltdata *ared;
|
||
struct ar_hdr *hdr;
|
||
bfd_size_type amt;
|
||
|
||
if (member && (member->flags & BFD_IN_MEMORY) != 0)
|
||
{
|
||
/* Assume we just "made" the member, and fake it. */
|
||
struct bfd_in_memory *bim = member->iostream;
|
||
time (&status.st_mtime);
|
||
status.st_uid = getuid ();
|
||
status.st_gid = getgid ();
|
||
status.st_mode = 0644;
|
||
status.st_size = bim->size;
|
||
}
|
||
else if (stat (filename, &status) != 0)
|
||
{
|
||
bfd_set_error (bfd_error_system_call);
|
||
return NULL;
|
||
}
|
||
|
||
amt = sizeof (struct ar_hdr) + sizeof (struct areltdata);
|
||
ared = bfd_zalloc (abfd, amt);
|
||
if (ared == NULL)
|
||
return NULL;
|
||
hdr = (struct ar_hdr *) (((char *) ared) + sizeof (struct areltdata));
|
||
|
||
/* ar headers are space padded, not null padded! */
|
||
memset (hdr, ' ', sizeof (struct ar_hdr));
|
||
|
||
_bfd_ar_spacepad (hdr->ar_date, sizeof (hdr->ar_date), "%-12ld",
|
||
status.st_mtime);
|
||
#ifdef HPUX_LARGE_AR_IDS
|
||
/* HP has a very "special" way to handle UID/GID's with numeric values
|
||
> 99999. */
|
||
if (status.st_uid > 99999)
|
||
hpux_uid_gid_encode (hdr->ar_uid, (long) status.st_uid);
|
||
else
|
||
#endif
|
||
_bfd_ar_spacepad (hdr->ar_uid, sizeof (hdr->ar_uid), "%ld",
|
||
status.st_uid);
|
||
#ifdef HPUX_LARGE_AR_IDS
|
||
/* HP has a very "special" way to handle UID/GID's with numeric values
|
||
> 99999. */
|
||
if (status.st_gid > 99999)
|
||
hpux_uid_gid_encode (hdr->ar_gid, (long) status.st_gid);
|
||
else
|
||
#endif
|
||
_bfd_ar_spacepad (hdr->ar_gid, sizeof (hdr->ar_gid), "%ld",
|
||
status.st_gid);
|
||
_bfd_ar_spacepad (hdr->ar_mode, sizeof (hdr->ar_mode), "%-8lo",
|
||
status.st_mode);
|
||
_bfd_ar_spacepad (hdr->ar_size, sizeof (hdr->ar_size), "%-10ld",
|
||
status.st_size);
|
||
memcpy (hdr->ar_fmag, ARFMAG, 2);
|
||
ared->parsed_size = status.st_size;
|
||
ared->arch_header = (char *) hdr;
|
||
|
||
return ared;
|
||
}
|
||
|
||
/* This is magic required by the "ar" program. Since it's
|
||
undocumented, it's undocumented. You may think that it would take
|
||
a strong stomach to write this, and it does, but it takes even a
|
||
stronger stomach to try to code around such a thing! */
|
||
|
||
struct ar_hdr *bfd_special_undocumented_glue (bfd *, const char *);
|
||
|
||
struct ar_hdr *
|
||
bfd_special_undocumented_glue (bfd *abfd, const char *filename)
|
||
{
|
||
struct areltdata *ar_elt = bfd_ar_hdr_from_filesystem (abfd, filename, 0);
|
||
if (ar_elt == NULL)
|
||
return NULL;
|
||
return (struct ar_hdr *) ar_elt->arch_header;
|
||
}
|
||
|
||
/* Analogous to stat call. */
|
||
|
||
int
|
||
bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
|
||
{
|
||
struct ar_hdr *hdr;
|
||
char *aloser;
|
||
|
||
if (abfd->arelt_data == NULL)
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return -1;
|
||
}
|
||
|
||
hdr = arch_hdr (abfd);
|
||
|
||
#define foo(arelt, stelt, size) \
|
||
buf->stelt = strtol (hdr->arelt, &aloser, size); \
|
||
if (aloser == hdr->arelt) \
|
||
return -1;
|
||
|
||
/* Some platforms support special notations for large IDs. */
|
||
#ifdef HPUX_LARGE_AR_IDS
|
||
# define foo2(arelt, stelt, size) \
|
||
if (hdr->arelt[5] == ' ') \
|
||
{ \
|
||
foo (arelt, stelt, size); \
|
||
} \
|
||
else \
|
||
{ \
|
||
int cnt; \
|
||
for (buf->stelt = cnt = 0; cnt < 5; ++cnt) \
|
||
{ \
|
||
if (hdr->arelt[cnt] < ' ' || hdr->arelt[cnt] > ' ' + 0x3f) \
|
||
return -1; \
|
||
buf->stelt <<= 6; \
|
||
buf->stelt += hdr->arelt[cnt] - ' '; \
|
||
} \
|
||
if (hdr->arelt[5] < '@' || hdr->arelt[5] > '@' + 3) \
|
||
return -1; \
|
||
buf->stelt <<= 2; \
|
||
buf->stelt += hdr->arelt[5] - '@'; \
|
||
}
|
||
#else
|
||
# define foo2(arelt, stelt, size) foo (arelt, stelt, size)
|
||
#endif
|
||
|
||
foo (ar_date, st_mtime, 10);
|
||
foo2 (ar_uid, st_uid, 10);
|
||
foo2 (ar_gid, st_gid, 10);
|
||
foo (ar_mode, st_mode, 8);
|
||
|
||
buf->st_size = arch_eltdata (abfd)->parsed_size;
|
||
|
||
return 0;
|
||
}
|
||
|
||
void
|
||
bfd_dont_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
|
||
{
|
||
/* FIXME: This interacts unpleasantly with ar's quick-append option.
|
||
Fortunately ic960 users will never use that option. Fixing this
|
||
is very hard; fortunately I know how to do it and will do so once
|
||
intel's release is out the door. */
|
||
|
||
struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
|
||
size_t length;
|
||
const char *filename;
|
||
size_t maxlen = ar_maxnamelen (abfd);
|
||
|
||
if ((bfd_get_file_flags (abfd) & BFD_TRADITIONAL_FORMAT) != 0)
|
||
{
|
||
bfd_bsd_truncate_arname (abfd, pathname, arhdr);
|
||
return;
|
||
}
|
||
|
||
filename = normalize (abfd, pathname);
|
||
if (filename == NULL)
|
||
{
|
||
/* FIXME */
|
||
abort ();
|
||
}
|
||
|
||
length = strlen (filename);
|
||
|
||
if (length <= maxlen)
|
||
memcpy (hdr->ar_name, filename, length);
|
||
|
||
/* Add the padding character if there is room for it. */
|
||
if (length < maxlen
|
||
|| (length == maxlen && length < sizeof hdr->ar_name))
|
||
(hdr->ar_name)[length] = ar_padchar (abfd);
|
||
}
|
||
|
||
void
|
||
bfd_bsd_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
|
||
{
|
||
struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
|
||
size_t length;
|
||
const char *filename = strrchr (pathname, '/');
|
||
size_t maxlen = ar_maxnamelen (abfd);
|
||
|
||
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
|
||
{
|
||
/* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
|
||
char *bslash = strrchr (pathname, '\\');
|
||
if (filename == NULL || (bslash != NULL && bslash > filename))
|
||
filename = bslash;
|
||
if (filename == NULL && pathname[0] != '\0' && pathname[1] == ':')
|
||
filename = pathname + 1;
|
||
}
|
||
#endif
|
||
|
||
if (filename == NULL)
|
||
filename = pathname;
|
||
else
|
||
++filename;
|
||
|
||
length = strlen (filename);
|
||
|
||
if (length <= maxlen)
|
||
memcpy (hdr->ar_name, filename, length);
|
||
else
|
||
{
|
||
/* pathname: meet procrustes */
|
||
memcpy (hdr->ar_name, filename, maxlen);
|
||
length = maxlen;
|
||
}
|
||
|
||
if (length < maxlen)
|
||
(hdr->ar_name)[length] = ar_padchar (abfd);
|
||
}
|
||
|
||
/* Store name into ar header. Truncates the name to fit.
|
||
1> strip pathname to be just the basename.
|
||
2> if it's short enuf to fit, stuff it in.
|
||
3> If it doesn't end with .o, truncate it to fit
|
||
4> truncate it before the .o, append .o, stuff THAT in. */
|
||
|
||
/* This is what gnu ar does. It's better but incompatible with the
|
||
bsd ar. */
|
||
|
||
void
|
||
bfd_gnu_truncate_arname (bfd *abfd, const char *pathname, char *arhdr)
|
||
{
|
||
struct ar_hdr *hdr = (struct ar_hdr *) arhdr;
|
||
size_t length;
|
||
const char *filename = strrchr (pathname, '/');
|
||
size_t maxlen = ar_maxnamelen (abfd);
|
||
|
||
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
|
||
{
|
||
/* We could have foo/bar\\baz, or foo\\bar, or d:bar. */
|
||
char *bslash = strrchr (pathname, '\\');
|
||
if (filename == NULL || (bslash != NULL && bslash > filename))
|
||
filename = bslash;
|
||
if (filename == NULL && pathname[0] != '\0' && pathname[1] == ':')
|
||
filename = pathname + 1;
|
||
}
|
||
#endif
|
||
|
||
if (filename == NULL)
|
||
filename = pathname;
|
||
else
|
||
++filename;
|
||
|
||
length = strlen (filename);
|
||
|
||
if (length <= maxlen)
|
||
memcpy (hdr->ar_name, filename, length);
|
||
else
|
||
{ /* pathname: meet procrustes */
|
||
memcpy (hdr->ar_name, filename, maxlen);
|
||
if ((filename[length - 2] == '.') && (filename[length - 1] == 'o'))
|
||
{
|
||
hdr->ar_name[maxlen - 2] = '.';
|
||
hdr->ar_name[maxlen - 1] = 'o';
|
||
}
|
||
length = maxlen;
|
||
}
|
||
|
||
if (length < 16)
|
||
(hdr->ar_name)[length] = ar_padchar (abfd);
|
||
}
|
||
|
||
/* The BFD is open for write and has its format set to bfd_archive. */
|
||
|
||
bfd_boolean
|
||
_bfd_write_archive_contents (bfd *arch)
|
||
{
|
||
bfd *current;
|
||
char *etable = NULL;
|
||
bfd_size_type elength = 0;
|
||
const char *ename = NULL;
|
||
bfd_boolean makemap = bfd_has_map (arch);
|
||
/* If no .o's, don't bother to make a map. */
|
||
bfd_boolean hasobjects = FALSE;
|
||
bfd_size_type wrote;
|
||
int tries;
|
||
|
||
/* Verify the viability of all entries; if any of them live in the
|
||
filesystem (as opposed to living in an archive open for input)
|
||
then construct a fresh ar_hdr for them. */
|
||
for (current = arch->archive_head; current; current = current->next)
|
||
{
|
||
/* This check is checking the bfds for the objects we're reading
|
||
from (which are usually either an object file or archive on
|
||
disk), not the archive entries we're writing to. We don't
|
||
actually create bfds for the archive members, we just copy
|
||
them byte-wise when we write out the archive. */
|
||
if (bfd_write_p (current))
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return FALSE;
|
||
}
|
||
if (!current->arelt_data)
|
||
{
|
||
current->arelt_data =
|
||
bfd_ar_hdr_from_filesystem (arch, current->filename, current);
|
||
if (!current->arelt_data)
|
||
return FALSE;
|
||
|
||
/* Put in the file name. */
|
||
BFD_SEND (arch, _bfd_truncate_arname,
|
||
(arch, current->filename, (char *) arch_hdr (current)));
|
||
}
|
||
|
||
if (makemap && ! hasobjects)
|
||
{ /* Don't bother if we won't make a map! */
|
||
if ((bfd_check_format (current, bfd_object)))
|
||
hasobjects = TRUE;
|
||
}
|
||
}
|
||
|
||
if (!BFD_SEND (arch, _bfd_construct_extended_name_table,
|
||
(arch, &etable, &elength, &ename)))
|
||
return FALSE;
|
||
|
||
if (bfd_seek (arch, (file_ptr) 0, SEEK_SET) != 0)
|
||
return FALSE;
|
||
wrote = bfd_bwrite (ARMAG, SARMAG, arch);
|
||
if (wrote != SARMAG)
|
||
return FALSE;
|
||
|
||
if (makemap && hasobjects)
|
||
{
|
||
if (! _bfd_compute_and_write_armap (arch, (unsigned int) elength))
|
||
return FALSE;
|
||
}
|
||
|
||
if (elength != 0)
|
||
{
|
||
struct ar_hdr hdr;
|
||
|
||
memset (&hdr, ' ', sizeof (struct ar_hdr));
|
||
memcpy (hdr.ar_name, ename, strlen (ename));
|
||
/* Round size up to even number in archive header. */
|
||
_bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
|
||
(elength + 1) & ~(bfd_size_type) 1);
|
||
memcpy (hdr.ar_fmag, ARFMAG, 2);
|
||
if ((bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
|
||
!= sizeof (struct ar_hdr))
|
||
|| bfd_bwrite (etable, elength, arch) != elength)
|
||
return FALSE;
|
||
if ((elength % 2) == 1)
|
||
{
|
||
if (bfd_bwrite ("\012", 1, arch) != 1)
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
for (current = arch->archive_head; current; current = current->next)
|
||
{
|
||
char buffer[DEFAULT_BUFFERSIZE];
|
||
unsigned int remaining = arelt_size (current);
|
||
struct ar_hdr *hdr = arch_hdr (current);
|
||
|
||
/* Write ar header. */
|
||
if (bfd_bwrite (hdr, sizeof (*hdr), arch)
|
||
!= sizeof (*hdr))
|
||
return FALSE;
|
||
if (bfd_seek (current, (file_ptr) 0, SEEK_SET) != 0)
|
||
return FALSE;
|
||
while (remaining)
|
||
{
|
||
unsigned int amt = DEFAULT_BUFFERSIZE;
|
||
if (amt > remaining)
|
||
amt = remaining;
|
||
errno = 0;
|
||
if (bfd_bread (buffer, amt, current) != amt)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
return FALSE;
|
||
}
|
||
if (bfd_bwrite (buffer, amt, arch) != amt)
|
||
return FALSE;
|
||
remaining -= amt;
|
||
}
|
||
if ((arelt_size (current) % 2) == 1)
|
||
{
|
||
if (bfd_bwrite ("\012", 1, arch) != 1)
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
if (makemap && hasobjects)
|
||
{
|
||
/* Verify the timestamp in the archive file. If it would not be
|
||
accepted by the linker, rewrite it until it would be. If
|
||
anything odd happens, break out and just return. (The
|
||
Berkeley linker checks the timestamp and refuses to read the
|
||
table-of-contents if it is >60 seconds less than the file's
|
||
modified-time. That painful hack requires this painful hack. */
|
||
tries = 1;
|
||
do
|
||
{
|
||
if (bfd_update_armap_timestamp (arch))
|
||
break;
|
||
(*_bfd_error_handler)
|
||
(_("Warning: writing archive was slow: rewriting timestamp\n"));
|
||
}
|
||
while (++tries < 6);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Note that the namidx for the first symbol is 0. */
|
||
|
||
bfd_boolean
|
||
_bfd_compute_and_write_armap (bfd *arch, unsigned int elength)
|
||
{
|
||
char *first_name = NULL;
|
||
bfd *current;
|
||
file_ptr elt_no = 0;
|
||
struct orl *map = NULL;
|
||
unsigned int orl_max = 1024; /* Fine initial default. */
|
||
unsigned int orl_count = 0;
|
||
int stridx = 0;
|
||
asymbol **syms = NULL;
|
||
long syms_max = 0;
|
||
bfd_boolean ret;
|
||
bfd_size_type amt;
|
||
|
||
/* Dunno if this is the best place for this info... */
|
||
if (elength != 0)
|
||
elength += sizeof (struct ar_hdr);
|
||
elength += elength % 2;
|
||
|
||
amt = orl_max * sizeof (struct orl);
|
||
map = bfd_malloc (amt);
|
||
if (map == NULL)
|
||
goto error_return;
|
||
|
||
/* We put the symbol names on the arch objalloc, and then discard
|
||
them when done. */
|
||
first_name = bfd_alloc (arch, 1);
|
||
if (first_name == NULL)
|
||
goto error_return;
|
||
|
||
/* Drop all the files called __.SYMDEF, we're going to make our own. */
|
||
while (arch->archive_head &&
|
||
strcmp (arch->archive_head->filename, "__.SYMDEF") == 0)
|
||
arch->archive_head = arch->archive_head->next;
|
||
|
||
/* Map over each element. */
|
||
for (current = arch->archive_head;
|
||
current != NULL;
|
||
current = current->next, elt_no++)
|
||
{
|
||
if (bfd_check_format (current, bfd_object)
|
||
&& (bfd_get_file_flags (current) & HAS_SYMS) != 0)
|
||
{
|
||
long storage;
|
||
long symcount;
|
||
long src_count;
|
||
|
||
storage = bfd_get_symtab_upper_bound (current);
|
||
if (storage < 0)
|
||
goto error_return;
|
||
|
||
if (storage != 0)
|
||
{
|
||
if (storage > syms_max)
|
||
{
|
||
if (syms_max > 0)
|
||
free (syms);
|
||
syms_max = storage;
|
||
syms = bfd_malloc (syms_max);
|
||
if (syms == NULL)
|
||
goto error_return;
|
||
}
|
||
symcount = bfd_canonicalize_symtab (current, syms);
|
||
if (symcount < 0)
|
||
goto error_return;
|
||
|
||
/* Now map over all the symbols, picking out the ones we
|
||
want. */
|
||
for (src_count = 0; src_count < symcount; src_count++)
|
||
{
|
||
flagword flags = (syms[src_count])->flags;
|
||
asection *sec = syms[src_count]->section;
|
||
|
||
if ((flags & BSF_GLOBAL ||
|
||
flags & BSF_WEAK ||
|
||
flags & BSF_INDIRECT ||
|
||
bfd_is_com_section (sec))
|
||
&& ! bfd_is_und_section (sec))
|
||
{
|
||
bfd_size_type namelen;
|
||
struct orl *new_map;
|
||
|
||
/* This symbol will go into the archive header. */
|
||
if (orl_count == orl_max)
|
||
{
|
||
orl_max *= 2;
|
||
amt = orl_max * sizeof (struct orl);
|
||
new_map = bfd_realloc (map, amt);
|
||
if (new_map == NULL)
|
||
goto error_return;
|
||
|
||
map = new_map;
|
||
}
|
||
|
||
namelen = strlen (syms[src_count]->name);
|
||
amt = sizeof (char *);
|
||
map[orl_count].name = bfd_alloc (arch, amt);
|
||
if (map[orl_count].name == NULL)
|
||
goto error_return;
|
||
*(map[orl_count].name) = bfd_alloc (arch, namelen + 1);
|
||
if (*(map[orl_count].name) == NULL)
|
||
goto error_return;
|
||
strcpy (*(map[orl_count].name), syms[src_count]->name);
|
||
map[orl_count].u.abfd = current;
|
||
map[orl_count].namidx = stridx;
|
||
|
||
stridx += namelen + 1;
|
||
++orl_count;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Now ask the BFD to free up any cached information, so we
|
||
don't fill all of memory with symbol tables. */
|
||
if (! bfd_free_cached_info (current))
|
||
goto error_return;
|
||
}
|
||
}
|
||
|
||
/* OK, now we have collected all the data, let's write them out. */
|
||
ret = BFD_SEND (arch, write_armap,
|
||
(arch, elength, map, orl_count, stridx));
|
||
|
||
if (syms_max > 0)
|
||
free (syms);
|
||
if (map != NULL)
|
||
free (map);
|
||
if (first_name != NULL)
|
||
bfd_release (arch, first_name);
|
||
|
||
return ret;
|
||
|
||
error_return:
|
||
if (syms_max > 0)
|
||
free (syms);
|
||
if (map != NULL)
|
||
free (map);
|
||
if (first_name != NULL)
|
||
bfd_release (arch, first_name);
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
bfd_boolean
|
||
bsd_write_armap (bfd *arch,
|
||
unsigned int elength,
|
||
struct orl *map,
|
||
unsigned int orl_count,
|
||
int stridx)
|
||
{
|
||
int padit = stridx & 1;
|
||
unsigned int ranlibsize = orl_count * BSD_SYMDEF_SIZE;
|
||
unsigned int stringsize = stridx + padit;
|
||
/* Include 8 bytes to store ranlibsize and stringsize in output. */
|
||
unsigned int mapsize = ranlibsize + stringsize + 8;
|
||
file_ptr firstreal;
|
||
bfd *current = arch->archive_head;
|
||
bfd *last_elt = current; /* Last element arch seen. */
|
||
bfd_byte temp[4];
|
||
unsigned int count;
|
||
struct ar_hdr hdr;
|
||
struct stat statbuf;
|
||
|
||
firstreal = mapsize + elength + sizeof (struct ar_hdr) + SARMAG;
|
||
|
||
stat (arch->filename, &statbuf);
|
||
memset (&hdr, ' ', sizeof (struct ar_hdr));
|
||
memcpy (hdr.ar_name, RANLIBMAG, strlen (RANLIBMAG));
|
||
/* Remember the timestamp, to keep it holy. But fudge it a little. */
|
||
bfd_ardata (arch)->armap_timestamp = statbuf.st_mtime + ARMAP_TIME_OFFSET;
|
||
bfd_ardata (arch)->armap_datepos = (SARMAG
|
||
+ offsetof (struct ar_hdr, ar_date[0]));
|
||
_bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
|
||
bfd_ardata (arch)->armap_timestamp);
|
||
_bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", getuid ());
|
||
_bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", getgid ());
|
||
_bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld", mapsize);
|
||
memcpy (hdr.ar_fmag, ARFMAG, 2);
|
||
if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
|
||
!= sizeof (struct ar_hdr))
|
||
return FALSE;
|
||
H_PUT_32 (arch, ranlibsize, temp);
|
||
if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
|
||
return FALSE;
|
||
|
||
for (count = 0; count < orl_count; count++)
|
||
{
|
||
bfd_byte buf[BSD_SYMDEF_SIZE];
|
||
|
||
if (map[count].u.abfd != last_elt)
|
||
{
|
||
do
|
||
{
|
||
firstreal += arelt_size (current) + sizeof (struct ar_hdr);
|
||
firstreal += firstreal % 2;
|
||
current = current->next;
|
||
}
|
||
while (current != map[count].u.abfd);
|
||
}
|
||
|
||
last_elt = current;
|
||
H_PUT_32 (arch, map[count].namidx, buf);
|
||
H_PUT_32 (arch, firstreal, buf + BSD_SYMDEF_OFFSET_SIZE);
|
||
if (bfd_bwrite (buf, BSD_SYMDEF_SIZE, arch)
|
||
!= BSD_SYMDEF_SIZE)
|
||
return FALSE;
|
||
}
|
||
|
||
/* Now write the strings themselves. */
|
||
H_PUT_32 (arch, stringsize, temp);
|
||
if (bfd_bwrite (temp, sizeof (temp), arch) != sizeof (temp))
|
||
return FALSE;
|
||
for (count = 0; count < orl_count; count++)
|
||
{
|
||
size_t len = strlen (*map[count].name) + 1;
|
||
|
||
if (bfd_bwrite (*map[count].name, len, arch) != len)
|
||
return FALSE;
|
||
}
|
||
|
||
/* The spec sez this should be a newline. But in order to be
|
||
bug-compatible for sun's ar we use a null. */
|
||
if (padit)
|
||
{
|
||
if (bfd_bwrite ("", 1, arch) != 1)
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* At the end of archive file handling, update the timestamp in the
|
||
file, so the linker will accept it.
|
||
|
||
Return TRUE if the timestamp was OK, or an unusual problem happened.
|
||
Return FALSE if we updated the timestamp. */
|
||
|
||
bfd_boolean
|
||
_bfd_archive_bsd_update_armap_timestamp (bfd *arch)
|
||
{
|
||
struct stat archstat;
|
||
struct ar_hdr hdr;
|
||
|
||
/* Flush writes, get last-write timestamp from file, and compare it
|
||
to the timestamp IN the file. */
|
||
bfd_flush (arch);
|
||
if (bfd_stat (arch, &archstat) == -1)
|
||
{
|
||
bfd_perror (_("Reading archive file mod timestamp"));
|
||
|
||
/* Can't read mod time for some reason. */
|
||
return TRUE;
|
||
}
|
||
if (archstat.st_mtime <= bfd_ardata (arch)->armap_timestamp)
|
||
/* OK by the linker's rules. */
|
||
return TRUE;
|
||
|
||
/* Update the timestamp. */
|
||
bfd_ardata (arch)->armap_timestamp = archstat.st_mtime + ARMAP_TIME_OFFSET;
|
||
|
||
/* Prepare an ASCII version suitable for writing. */
|
||
memset (hdr.ar_date, ' ', sizeof (hdr.ar_date));
|
||
_bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
|
||
bfd_ardata (arch)->armap_timestamp);
|
||
|
||
/* Write it into the file. */
|
||
bfd_ardata (arch)->armap_datepos = (SARMAG
|
||
+ offsetof (struct ar_hdr, ar_date[0]));
|
||
if (bfd_seek (arch, bfd_ardata (arch)->armap_datepos, SEEK_SET) != 0
|
||
|| (bfd_bwrite (hdr.ar_date, sizeof (hdr.ar_date), arch)
|
||
!= sizeof (hdr.ar_date)))
|
||
{
|
||
bfd_perror (_("Writing updated armap timestamp"));
|
||
|
||
/* Some error while writing. */
|
||
return TRUE;
|
||
}
|
||
|
||
/* We updated the timestamp successfully. */
|
||
return FALSE;
|
||
}
|
||
|
||
/* A coff armap looks like :
|
||
lARMAG
|
||
struct ar_hdr with name = '/'
|
||
number of symbols
|
||
offset of file for symbol 0
|
||
offset of file for symbol 1
|
||
|
||
offset of file for symbol n-1
|
||
symbol name 0
|
||
symbol name 1
|
||
|
||
symbol name n-1 */
|
||
|
||
bfd_boolean
|
||
coff_write_armap (bfd *arch,
|
||
unsigned int elength,
|
||
struct orl *map,
|
||
unsigned int symbol_count,
|
||
int stridx)
|
||
{
|
||
/* The size of the ranlib is the number of exported symbols in the
|
||
archive * the number of bytes in an int, + an int for the count. */
|
||
unsigned int ranlibsize = (symbol_count * 4) + 4;
|
||
unsigned int stringsize = stridx;
|
||
unsigned int mapsize = stringsize + ranlibsize;
|
||
unsigned int archive_member_file_ptr;
|
||
bfd *current = arch->archive_head;
|
||
unsigned int count;
|
||
struct ar_hdr hdr;
|
||
int padit = mapsize & 1;
|
||
|
||
if (padit)
|
||
mapsize++;
|
||
|
||
/* Work out where the first object file will go in the archive. */
|
||
archive_member_file_ptr = (mapsize
|
||
+ elength
|
||
+ sizeof (struct ar_hdr)
|
||
+ SARMAG);
|
||
|
||
memset (&hdr, ' ', sizeof (struct ar_hdr));
|
||
hdr.ar_name[0] = '/';
|
||
_bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10ld",
|
||
mapsize);
|
||
_bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
|
||
time (NULL));
|
||
/* This, at least, is what Intel coff sets the values to. */
|
||
_bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
|
||
_bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
|
||
_bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
|
||
memcpy (hdr.ar_fmag, ARFMAG, 2);
|
||
|
||
/* Write the ar header for this item and the number of symbols. */
|
||
if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
|
||
!= sizeof (struct ar_hdr))
|
||
return FALSE;
|
||
|
||
if (!bfd_write_bigendian_4byte_int (arch, symbol_count))
|
||
return FALSE;
|
||
|
||
/* Two passes, first write the file offsets for each symbol -
|
||
remembering that each offset is on a two byte boundary. */
|
||
|
||
/* Write out the file offset for the file associated with each
|
||
symbol, and remember to keep the offsets padded out. */
|
||
|
||
current = arch->archive_head;
|
||
count = 0;
|
||
while (current != NULL && count < symbol_count)
|
||
{
|
||
/* For each symbol which is used defined in this object, write
|
||
out the object file's address in the archive. */
|
||
|
||
while (count < symbol_count && map[count].u.abfd == current)
|
||
{
|
||
if (!bfd_write_bigendian_4byte_int (arch, archive_member_file_ptr))
|
||
return FALSE;
|
||
count++;
|
||
}
|
||
/* Add size of this archive entry. */
|
||
archive_member_file_ptr += arelt_size (current) + sizeof (struct ar_hdr);
|
||
/* Remember aboout the even alignment. */
|
||
archive_member_file_ptr += archive_member_file_ptr % 2;
|
||
current = current->next;
|
||
}
|
||
|
||
/* Now write the strings themselves. */
|
||
for (count = 0; count < symbol_count; count++)
|
||
{
|
||
size_t len = strlen (*map[count].name) + 1;
|
||
|
||
if (bfd_bwrite (*map[count].name, len, arch) != len)
|
||
return FALSE;
|
||
}
|
||
|
||
/* The spec sez this should be a newline. But in order to be
|
||
bug-compatible for arc960 we use a null. */
|
||
if (padit)
|
||
{
|
||
if (bfd_bwrite ("", 1, arch) != 1)
|
||
return FALSE;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|