/* BFD back-end for HP/Intel IA-64 COFF files.
- Copyright 1999 Free Software Foundation, Inc.
+ Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
Contributed by David Mosberger <davidm@hpl.hp.com>
This file is part of BFD, the Binary File Descriptor library.
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
-
#include "coff/ia64.h"
-
#include "coff/internal.h"
-
#include "coff/pe.h"
-
#include "libcoff.h"
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
#define COFF_PAGE_SIZE 0x1000
-static reloc_howto_type howto_table[] =
+static reloc_howto_type howto_table[] =
{
- {0},
+ EMPTY_HOWTO (0),
};
#define BADMAG(x) IA64BADMAG(x)
#define IA64 1 /* Customize coffcode.h */
-#ifdef COFF_WITH_PEP64
+#ifdef COFF_WITH_pep
# undef AOUTSZ
-# define AOUTSZ PEP64AOUTSZ
-# define PEAOUTHDR PEP64AOUTHDR
+# define AOUTSZ PEPAOUTSZ
+# define PEAOUTHDR PEPAOUTHDR
#endif
#define RTYPE2HOWTO(cache_ptr, dst) \
(cache_ptr)->howto = howto_table + (dst)->r_type;
#ifdef COFF_WITH_PE
-/* Return true if this relocation should
- appear in the output .reloc section. */
+/* Return TRUE if this relocation should
+ appear in the output .reloc section. */
-static boolean
+static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
+
+static bfd_boolean
in_reloc_p(abfd, howto)
- bfd * abfd;
- reloc_howto_type *howto;
+ bfd * abfd ATTRIBUTE_UNUSED;
+ reloc_howto_type *howto ATTRIBUTE_UNUSED;
{
- return 0; /* We don't do relocs for now... */
-}
+ return FALSE; /* We don't do relocs for now... */
+}
#endif
#include "coffcode.h"
+static const bfd_target *ia64coff_object_p PARAMS ((bfd *));
+
static const bfd_target *
ia64coff_object_p (abfd)
bfd *abfd;
{
#ifdef COFF_IMAGE_WITH_PE
- /* We need to hack badly to handle a PE image correctly. In PE
- images created by the GNU linker, the offset to the COFF header
- is always the size. However, this is not the case in images
- generated by other PE linkers. The PE format stores a four byte
- offset to the PE signature just before the COFF header at
- location 0x3c of the file. We pick up that offset, verify that
- the PE signature is there, and then set ourselves up to read in
- the COFF header. */
{
- bfd_byte ext_offset[4];
+ struct external_PEI_DOS_hdr dos_hdr;
+ struct external_PEI_IMAGE_hdr image_hdr;
file_ptr offset;
- bfd_byte ext_signature[4];
- unsigned long signature;
- if (bfd_seek (abfd, 0x3c, SEEK_SET) != 0
- || bfd_read (ext_offset, 1, 4, abfd) != 4)
+ if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
+ || (bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd)
+ != sizeof (dos_hdr)))
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
- offset = bfd_h_get_32 (abfd, ext_offset);
+
+ /* There are really two magic numbers involved; the magic number
+ that says this is a NT executable (PEI) and the magic number
+ that determines the architecture. The former is DOSMAGIC,
+ stored in the e_magic field. The latter is stored in the
+ f_magic field. If the NT magic number isn't valid, the
+ architecture magic number could be mimicked by some other
+ field (specifically, the number of relocs in section 3). Since
+ this routine can only be called correctly for a PEI file, check
+ the e_magic number here, and, if it doesn't match, clobber the
+ f_magic number so that we don't get a false match. */
+ if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
+
+ offset = H_GET_32 (abfd, dos_hdr.e_lfanew);
if (bfd_seek (abfd, offset, SEEK_SET) != 0
- || bfd_read (ext_signature, 1, 4, abfd) != 4)
+ || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd)
+ != sizeof (image_hdr)))
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
- signature = bfd_h_get_32 (abfd, ext_signature);
- if (signature != 0x4550)
+ if (H_GET_32 (abfd, image_hdr.nt_signature)
+ != 0x4550)
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Here is the hack. coff_object_p wants to read filhsz bytes to
- pick up the COFF header. We adjust so that that will work. 20
- is the size of the COFF filehdr. */
-
- if (bfd_seek (abfd,
- (bfd_tell (abfd)
- - bfd_coff_filhsz (abfd)
- + 20),
- SEEK_SET)
- != 0)
+ pick up the COFF header for PE, see "struct external_PEI_filehdr"
+ in include/coff/pe.h. We adjust so that that will work. */
+ if (bfd_seek (abfd, offset - sizeof (dos_hdr), SEEK_SET) != 0)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
-/* Note that we allow an object file to be treated as a core file as well. */
+/* Note that we allow an object file to be treated as a core file as well. */
{_bfd_dummy_target, ia64coff_object_p, /* bfd_check_format */
bfd_generic_archive_p, ia64coff_object_p},
{bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
projects / deliverable / binutils-gdb.git / blobdiff