241 lines
7.0 KiB
C
241 lines
7.0 KiB
C
/* MIPS-specific support for 64-bit ELF
|
|
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006
|
|
Free Software Foundation, Inc.
|
|
Ian Lance Taylor, Cygnus Support
|
|
Linker support added by Mark Mitchell, CodeSourcery, LLC.
|
|
<mark@codesourcery.com>
|
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
|
|
|
/* This file supports the 64-bit (MIPS) ELF archives. */
|
|
|
|
#include "bfd.h"
|
|
#include "sysdep.h"
|
|
#include "libbfd.h"
|
|
#include "aout/ar.h"
|
|
|
|
/* Irix 6 defines a 64bit archive map format, so that they can
|
|
have archives more than 4 GB in size. */
|
|
|
|
bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
|
|
bfd_boolean bfd_elf64_archive_write_armap
|
|
(bfd *, unsigned int, struct orl *, unsigned int, int);
|
|
|
|
/* Read an Irix 6 armap. */
|
|
|
|
bfd_boolean
|
|
bfd_elf64_archive_slurp_armap (bfd *abfd)
|
|
{
|
|
struct artdata *ardata = bfd_ardata (abfd);
|
|
char nextname[17];
|
|
file_ptr arhdrpos;
|
|
bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
|
|
struct areltdata *mapdata;
|
|
bfd_byte int_buf[8];
|
|
char *stringbase;
|
|
bfd_byte *raw_armap = NULL;
|
|
carsym *carsyms;
|
|
bfd_size_type amt;
|
|
|
|
ardata->symdefs = NULL;
|
|
|
|
/* Get the name of the first element. */
|
|
arhdrpos = bfd_tell (abfd);
|
|
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;
|
|
|
|
/* Archives with traditional armaps are still permitted. */
|
|
if (CONST_STRNEQ (nextname, "/ "))
|
|
return bfd_slurp_armap (abfd);
|
|
|
|
if (! CONST_STRNEQ (nextname, "/SYM64/ "))
|
|
{
|
|
bfd_has_map (abfd) = FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
|
|
if (mapdata == NULL)
|
|
return FALSE;
|
|
parsed_size = mapdata->parsed_size;
|
|
bfd_release (abfd, mapdata);
|
|
|
|
if (bfd_bread (int_buf, 8, abfd) != 8)
|
|
{
|
|
if (bfd_get_error () != bfd_error_system_call)
|
|
bfd_set_error (bfd_error_malformed_archive);
|
|
return FALSE;
|
|
}
|
|
|
|
nsymz = bfd_getb64 (int_buf);
|
|
stringsize = parsed_size - 8 * nsymz - 8;
|
|
|
|
carsym_size = nsymz * sizeof (carsym);
|
|
ptrsize = 8 * nsymz;
|
|
|
|
amt = carsym_size + stringsize + 1;
|
|
ardata->symdefs = bfd_zalloc (abfd, amt);
|
|
if (ardata->symdefs == NULL)
|
|
return FALSE;
|
|
carsyms = ardata->symdefs;
|
|
stringbase = ((char *) ardata->symdefs) + carsym_size;
|
|
|
|
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;
|
|
}
|
|
|
|
for (i = 0; i < nsymz; i++)
|
|
{
|
|
carsyms->file_offset = bfd_getb64 (raw_armap + i * 8);
|
|
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);
|
|
|
|
return TRUE;
|
|
|
|
release_raw_armap:
|
|
bfd_release (abfd, raw_armap);
|
|
release_symdefs:
|
|
bfd_release (abfd, ardata->symdefs);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Write out an Irix 6 armap. The Irix 6 tools are supposed to be
|
|
able to handle ordinary ELF armaps, but at least on Irix 6.2 the
|
|
linker crashes. */
|
|
|
|
bfd_boolean
|
|
bfd_elf64_archive_write_armap (bfd *arch,
|
|
unsigned int elength,
|
|
struct orl *map,
|
|
unsigned int symbol_count,
|
|
int stridx)
|
|
{
|
|
unsigned int ranlibsize = (symbol_count * 8) + 8;
|
|
unsigned int stringsize = stridx;
|
|
unsigned int mapsize = stringsize + ranlibsize;
|
|
file_ptr archive_member_file_ptr;
|
|
bfd *current = arch->archive_head;
|
|
unsigned int count;
|
|
struct ar_hdr hdr;
|
|
int padding;
|
|
bfd_byte buf[8];
|
|
|
|
padding = BFD_ALIGN (mapsize, 8) - mapsize;
|
|
mapsize += padding;
|
|
|
|
/* 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));
|
|
memcpy (hdr.ar_name, "/SYM64/", strlen ("/SYM64/"));
|
|
_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;
|
|
|
|
bfd_putb64 ((bfd_vma) symbol_count, buf);
|
|
if (bfd_bwrite (buf, 8, arch) != 8)
|
|
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 (map[count].u.abfd == current)
|
|
{
|
|
bfd_putb64 ((bfd_vma) archive_member_file_ptr, buf);
|
|
if (bfd_bwrite (buf, 8, arch) != 8)
|
|
return FALSE;
|
|
count++;
|
|
}
|
|
/* Add size of this archive entry */
|
|
archive_member_file_ptr += (arelt_size (current)
|
|
+ sizeof (struct ar_hdr));
|
|
/* remember about 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 says that this should be padded to an 8 byte boundary.
|
|
However, the Irix 6.2 tools do not appear to do this. */
|
|
while (padding != 0)
|
|
{
|
|
if (bfd_bwrite ("", 1, arch) != 1)
|
|
return FALSE;
|
|
--padding;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|