1 /* BFD back-end for HP/Intel IA-64 COFF files.
2 Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
3 Contributed by David Mosberger <davidm@hpl.hp.com>
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 #include "coff/ia64.h"
25 #include "coff/internal.h"
29 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
30 /* The page size is a guess based on ELF. */
32 #define COFF_PAGE_SIZE 0x1000
34 static reloc_howto_type howto_table[] =
39 #define BADMAG(x) IA64BADMAG(x)
40 #define IA64 1 /* Customize coffcode.h */
44 # define AOUTSZ PEPAOUTSZ
45 # define PEAOUTHDR PEPAOUTHDR
48 #define RTYPE2HOWTO(cache_ptr, dst) \
49 (cache_ptr)->howto = howto_table + (dst)->r_type;
52 /* Return true if this relocation should
53 appear in the output .reloc section. */
56 in_reloc_p(abfd, howto)
57 bfd * abfd ATTRIBUTE_UNUSED;
58 reloc_howto_type *howto ATTRIBUTE_UNUSED;
60 return 0; /* We don't do relocs for now... */
66 static const bfd_target *
67 ia64coff_object_p (abfd)
70 #ifdef COFF_IMAGE_WITH_PE
72 struct external_PEI_DOS_hdr dos_hdr;
73 struct external_PEI_IMAGE_hdr image_hdr;
76 if (bfd_seek (abfd, 0x00, SEEK_SET) != 0
77 || bfd_read (&dos_hdr, 1, sizeof (dos_hdr), abfd)
80 if (bfd_get_error () != bfd_error_system_call)
81 bfd_set_error (bfd_error_wrong_format);
85 /* There are really two magic numbers involved; the magic number
86 that says this is a NT executable (PEI) and the magic number
87 that determines the architecture. The former is DOSMAGIC,
88 stored in the e_magic field. The latter is stored in the
89 f_magic field. If the NT magic number isn't valid, the
90 architecture magic number could be mimicked by some other
91 field (specifically, the number of relocs in section 3). Since
92 this routine can only be called correctly for a PEI file, check
93 the e_magic number here, and, if it doesn't match, clobber the
94 f_magic number so that we don't get a false match. */
95 if (bfd_h_get_16 (abfd, (bfd_byte *) dos_hdr.e_magic) != DOSMAGIC)
97 bfd_set_error (bfd_error_wrong_format);
101 offset = bfd_h_get_32 (abfd, (bfd_byte *) dos_hdr.e_lfanew);
102 if (bfd_seek (abfd, (file_ptr) offset, SEEK_SET) != 0
103 || bfd_read (&image_hdr, 1, sizeof (image_hdr), abfd)
104 != sizeof (image_hdr))
106 if (bfd_get_error () != bfd_error_system_call)
107 bfd_set_error (bfd_error_wrong_format);
111 if (bfd_h_get_32 (abfd, (bfd_byte *) image_hdr.nt_signature)
114 bfd_set_error (bfd_error_wrong_format);
118 /* Here is the hack. coff_object_p wants to read filhsz bytes to
119 pick up the COFF header for PE, see "struct external_PEI_filehdr"
120 in include/coff/pe.h. We adjust so that that will work. */
122 (file_ptr) (offset - sizeof (dos_hdr)),
126 if (bfd_get_error () != bfd_error_system_call)
127 bfd_set_error (bfd_error_wrong_format);
133 return coff_object_p (abfd);
146 "coff-ia64", /* name */
148 bfd_target_coff_flavour,
149 BFD_ENDIAN_LITTLE, /* data byte order is little */
150 BFD_ENDIAN_LITTLE, /* header byte order is little */
152 (HAS_RELOC | EXEC_P | /* object flags */
153 HAS_LINENO | HAS_DEBUG |
154 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
157 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
158 | SEC_CODE | SEC_DATA),
160 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
161 | SEC_CODE | SEC_DATA
162 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
165 #ifdef TARGET_UNDERSCORE
166 TARGET_UNDERSCORE, /* leading underscore */
168 0, /* leading underscore */
170 '/', /* ar_pad_char */
171 15, /* ar_max_namelen */
173 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
174 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
175 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
176 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
177 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
178 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
180 /* Note that we allow an object file to be treated as a core file as well. */
181 {_bfd_dummy_target, ia64coff_object_p, /* bfd_check_format */
182 bfd_generic_archive_p, ia64coff_object_p},
183 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
185 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
186 _bfd_write_archive_contents, bfd_false},
188 BFD_JUMP_TABLE_GENERIC (coff),
189 BFD_JUMP_TABLE_COPY (coff),
190 BFD_JUMP_TABLE_CORE (_bfd_nocore),
191 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
192 BFD_JUMP_TABLE_SYMBOLS (coff),
193 BFD_JUMP_TABLE_RELOCS (coff),
194 BFD_JUMP_TABLE_WRITE (coff),
195 BFD_JUMP_TABLE_LINK (coff),
196 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),