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* Makefile.am: split up BFD_LIBS like statements in BFD32_LIBS and
BFD64_LIBS, make the latter depending on the availability of BFD64. Add archive64.c source file. * archive64.c: New file implementing bfd_elf64_archive_slurp_armap and bfd_elf64_archive_write_armap, code from elf64-mips.c * archive.c (bfd_slurp_armap): Add ELF64 archive support. * config.bfd (mips*-*-irix6*): Allow with BFD64 only. (mips64*el-*-linux*): Likewise. (mips*el-*-linux*): Likewise. Reorder entries. * configure.in (bfd_libs): Define in dependency of BFD64 and AC_SUBST it. * elf64-mips.c (mips_elf64_slurp_armap): Remove, use bfd_elf64_archive_slurp_armap instead. (mips_elf64_write_armap): Remove, use bfd_elf64_archive_write_armap instead.
This commit is contained in:
Thiemo Seufer
245
bfd/archive64.c
Normal file
245
bfd/archive64.c
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@@ -0,0 +1,245 @@
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/* MIPS-specific support for 64-bit ELF
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Copyright 1996, 1997, 1998, 1999, 2000, 2001
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Free Software Foundation, Inc.
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Ian Lance Taylor, Cygnus Support
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Linker support added by Mark Mitchell, CodeSourcery, LLC.
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<mark@codesourcery.com>
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* This file supports the 64-bit (MIPS) ELF archives. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "aout/ar.h"
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/* Irix 6 defines a 64bit archive map format, so that they can
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have archives more than 4 GB in size. */
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boolean bfd_elf64_archive_slurp_armap PARAMS ((bfd *));
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boolean bfd_elf64_archive_write_armap
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PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
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/* Read an Irix 6 armap. */
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boolean
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bfd_elf64_archive_slurp_armap (abfd)
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bfd *abfd;
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{
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struct artdata *ardata = bfd_ardata (abfd);
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char nextname[17];
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file_ptr arhdrpos;
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bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
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struct areltdata *mapdata;
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bfd_byte int_buf[8];
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char *stringbase;
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bfd_byte *raw_armap = NULL;
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carsym *carsyms;
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bfd_size_type amt;
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ardata->symdefs = NULL;
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/* Get the name of the first element. */
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arhdrpos = bfd_tell (abfd);
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i = bfd_bread ((PTR) nextname, (bfd_size_type) 16, abfd);
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if (i == 0)
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return true;
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if (i != 16)
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return false;
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if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
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return false;
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/* Archives with traditional armaps are still permitted. */
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if (strncmp (nextname, "/ ", 16) == 0)
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return bfd_slurp_armap (abfd);
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if (strncmp (nextname, "/SYM64/ ", 16) != 0)
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{
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bfd_has_map (abfd) = false;
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return true;
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}
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mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
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if (mapdata == NULL)
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return false;
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parsed_size = mapdata->parsed_size;
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bfd_release (abfd, (PTR) mapdata);
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if (bfd_bread (int_buf, (bfd_size_type) 8, abfd) != 8)
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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_malformed_archive);
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return false;
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}
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nsymz = bfd_getb64 (int_buf);
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stringsize = parsed_size - 8 * nsymz - 8;
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carsym_size = nsymz * sizeof (carsym);
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ptrsize = 8 * nsymz;
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amt = carsym_size + stringsize + 1;
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ardata->symdefs = (carsym *) bfd_zalloc (abfd, amt);
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if (ardata->symdefs == NULL)
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return false;
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carsyms = ardata->symdefs;
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stringbase = ((char *) ardata->symdefs) + carsym_size;
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raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize);
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if (raw_armap == NULL)
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goto release_symdefs;
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if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
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|| bfd_bread (stringbase, stringsize, abfd) != stringsize)
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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_malformed_archive);
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goto release_raw_armap;
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}
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for (i = 0; i < nsymz; i++)
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{
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carsyms->file_offset = bfd_getb64 (raw_armap + i * 8);
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carsyms->name = stringbase;
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stringbase += strlen (stringbase) + 1;
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++carsyms;
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}
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*stringbase = '\0';
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ardata->symdef_count = nsymz;
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ardata->first_file_filepos = bfd_tell (abfd);
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/* Pad to an even boundary if you have to. */
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ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
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bfd_has_map (abfd) = true;
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bfd_release (abfd, raw_armap);
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return true;
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release_raw_armap:
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bfd_release (abfd, raw_armap);
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release_symdefs:
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bfd_release (abfd, ardata->symdefs);
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return false;
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}
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/* Write out an Irix 6 armap. The Irix 6 tools are supposed to be
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able to handle ordinary ELF armaps, but at least on Irix 6.2 the
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linker crashes. */
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boolean
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bfd_elf64_archive_write_armap (arch, elength, map, symbol_count, stridx)
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bfd *arch;
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unsigned int elength;
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struct orl *map;
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unsigned int symbol_count;
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int stridx;
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{
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unsigned int ranlibsize = (symbol_count * 8) + 8;
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unsigned int stringsize = stridx;
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unsigned int mapsize = stringsize + ranlibsize;
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file_ptr archive_member_file_ptr;
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bfd *current = arch->archive_head;
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unsigned int count;
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struct ar_hdr hdr;
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unsigned int i;
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int padding;
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bfd_byte buf[8];
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padding = BFD_ALIGN (mapsize, 8) - mapsize;
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mapsize += padding;
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/* work out where the first object file will go in the archive */
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archive_member_file_ptr = (mapsize
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+ elength
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+ sizeof (struct ar_hdr)
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+ SARMAG);
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memset ((char *) (&hdr), 0, sizeof (struct ar_hdr));
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strcpy (hdr.ar_name, "/SYM64/");
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sprintf (hdr.ar_size, "%-10d", (int) mapsize);
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sprintf (hdr.ar_date, "%ld", (long) time (NULL));
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/* This, at least, is what Intel coff sets the values to.: */
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sprintf ((hdr.ar_uid), "%d", 0);
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sprintf ((hdr.ar_gid), "%d", 0);
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sprintf ((hdr.ar_mode), "%-7o", (unsigned) 0);
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strncpy (hdr.ar_fmag, ARFMAG, 2);
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for (i = 0; i < sizeof (struct ar_hdr); i++)
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if (((char *) (&hdr))[i] == '\0')
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(((char *) (&hdr))[i]) = ' ';
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/* Write the ar header for this item and the number of symbols */
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if (bfd_bwrite ((PTR) &hdr, (bfd_size_type) sizeof (struct ar_hdr), arch)
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!= sizeof (struct ar_hdr))
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return false;
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bfd_putb64 ((bfd_vma) symbol_count, buf);
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if (bfd_bwrite (buf, (bfd_size_type) 8, arch) != 8)
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return false;
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/* Two passes, first write the file offsets for each symbol -
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remembering that each offset is on a two byte boundary. */
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/* Write out the file offset for the file associated with each
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symbol, and remember to keep the offsets padded out. */
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current = arch->archive_head;
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count = 0;
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while (current != (bfd *) NULL && count < symbol_count)
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{
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/* For each symbol which is used defined in this object, write out
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the object file's address in the archive */
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while (map[count].u.abfd == current)
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{
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bfd_putb64 ((bfd_vma) archive_member_file_ptr, buf);
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if (bfd_bwrite (buf, (bfd_size_type) 8, arch) != 8)
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return false;
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count++;
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}
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/* Add size of this archive entry */
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archive_member_file_ptr += (arelt_size (current)
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+ sizeof (struct ar_hdr));
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/* remember about the even alignment */
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archive_member_file_ptr += archive_member_file_ptr % 2;
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current = current->next;
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}
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/* now write the strings themselves */
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for (count = 0; count < symbol_count; count++)
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{
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size_t len = strlen (*map[count].name) + 1;
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if (bfd_bwrite (*map[count].name, (bfd_size_type) len, arch) != len)
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return false;
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}
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/* The spec says that this should be padded to an 8 byte boundary.
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However, the Irix 6.2 tools do not appear to do this. */
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while (padding != 0)
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{
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if (bfd_bwrite ("", (bfd_size_type) 1, arch) != 1)
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return false;
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--padding;
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}
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return true;
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}
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