1/* BFD back-end for HP/Intel IA-64 COFF files. 2 Copyright 1999, 2000, 2001, 2002, 2005, 2007, 2008, 2009 3 Free Software Foundation, Inc. 4 Contributed by David Mosberger <davidm@hpl.hp.com> 5 6 This file is part of BFD, the Binary File Descriptor library. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23#include "sysdep.h" 24#include "bfd.h" 25#include "libbfd.h" 26#include "coff/ia64.h" 27#include "coff/internal.h" 28#include "coff/pe.h" 29#include "libcoff.h" 30 31#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) 32 33/* Windows ia64 uses 8K page size. */ 34#define COFF_PAGE_SIZE 0x2000 35 36static reloc_howto_type howto_table[] = 37{ 38 EMPTY_HOWTO (0), 39}; 40 41#define BADMAG(x) IA64BADMAG(x) 42#define IA64 1 /* Customize coffcode.h */ 43 44#ifdef COFF_WITH_pep 45# undef AOUTSZ 46# define AOUTSZ PEPAOUTSZ 47# define PEAOUTHDR PEPAOUTHDR 48#endif 49 50#define RTYPE2HOWTO(cache_ptr, dst) \ 51 (cache_ptr)->howto = howto_table + (dst)->r_type; 52 53#ifdef COFF_WITH_PE 54/* Return TRUE if this relocation should 55 appear in the output .reloc section. */ 56 57static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *)); 58 59static bfd_boolean 60in_reloc_p(abfd, howto) 61 bfd * abfd ATTRIBUTE_UNUSED; 62 reloc_howto_type *howto ATTRIBUTE_UNUSED; 63{ 64 return FALSE; /* We don't do relocs for now... */ 65} 66#endif 67 68#ifndef bfd_pe_print_pdata 69#define bfd_pe_print_pdata NULL 70#endif 71 72#include "coffcode.h" 73 74static const bfd_target *ia64coff_object_p PARAMS ((bfd *)); 75 76static const bfd_target * 77ia64coff_object_p (abfd) 78 bfd *abfd; 79{ 80#ifdef COFF_IMAGE_WITH_PE 81 { 82 struct external_PEI_DOS_hdr dos_hdr; 83 struct external_PEI_IMAGE_hdr image_hdr; 84 file_ptr offset; 85 86 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 87 || (bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) 88 != sizeof (dos_hdr))) 89 { 90 if (bfd_get_error () != bfd_error_system_call) 91 bfd_set_error (bfd_error_wrong_format); 92 return NULL; 93 } 94 95 /* There are really two magic numbers involved; the magic number 96 that says this is a NT executable (PEI) and the magic number 97 that determines the architecture. The former is DOSMAGIC, 98 stored in the e_magic field. The latter is stored in the 99 f_magic field. If the NT magic number isn't valid, the 100 architecture magic number could be mimicked by some other 101 field (specifically, the number of relocs in section 3). Since 102 this routine can only be called correctly for a PEI file, check 103 the e_magic number here, and, if it doesn't match, clobber the 104 f_magic number so that we don't get a false match. */ 105 if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) 106 { 107 bfd_set_error (bfd_error_wrong_format); 108 return NULL; 109 } 110 111 offset = H_GET_32 (abfd, dos_hdr.e_lfanew); 112 if (bfd_seek (abfd, offset, SEEK_SET) != 0 113 || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) 114 != sizeof (image_hdr))) 115 { 116 if (bfd_get_error () != bfd_error_system_call) 117 bfd_set_error (bfd_error_wrong_format); 118 return NULL; 119 } 120 121 if (H_GET_32 (abfd, image_hdr.nt_signature) 122 != 0x4550) 123 { 124 bfd_set_error (bfd_error_wrong_format); 125 return NULL; 126 } 127 128 /* Here is the hack. coff_object_p wants to read filhsz bytes to 129 pick up the COFF header for PE, see "struct external_PEI_filehdr" 130 in include/coff/pe.h. We adjust so that that will work. */ 131 if (bfd_seek (abfd, offset - sizeof (dos_hdr), SEEK_SET) != 0) 132 { 133 if (bfd_get_error () != bfd_error_system_call) 134 bfd_set_error (bfd_error_wrong_format); 135 return NULL; 136 } 137 } 138#endif 139 140 return coff_object_p (abfd); 141} 142 143const bfd_target 144#ifdef TARGET_SYM 145 TARGET_SYM = 146#else 147 ia64coff_vec = 148#endif 149{ 150#ifdef TARGET_NAME 151 TARGET_NAME, 152#else 153 "coff-ia64", /* name */ 154#endif 155 bfd_target_coff_flavour, 156 BFD_ENDIAN_LITTLE, /* data byte order is little */ 157 BFD_ENDIAN_LITTLE, /* header byte order is little */ 158 159 (HAS_RELOC | EXEC_P | /* object flags */ 160 HAS_LINENO | HAS_DEBUG | 161 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), 162 163#ifndef COFF_WITH_PE 164 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ 165 | SEC_CODE | SEC_DATA), 166#else 167 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ 168 | SEC_CODE | SEC_DATA 169 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 170#endif 171 172#ifdef TARGET_UNDERSCORE 173 TARGET_UNDERSCORE, /* leading underscore */ 174#else 175 0, /* leading underscore */ 176#endif 177 '/', /* ar_pad_char */ 178 15, /* ar_max_namelen */ 179 180 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 181 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 182 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ 183 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 184 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 185 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ 186 187/* Note that we allow an object file to be treated as a core file as well. */ 188 {_bfd_dummy_target, ia64coff_object_p, /* bfd_check_format */ 189 bfd_generic_archive_p, ia64coff_object_p}, 190 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ 191 bfd_false}, 192 {bfd_false, coff_write_object_contents, /* bfd_write_contents */ 193 _bfd_write_archive_contents, bfd_false}, 194 195 BFD_JUMP_TABLE_GENERIC (coff), 196 BFD_JUMP_TABLE_COPY (coff), 197 BFD_JUMP_TABLE_CORE (_bfd_nocore), 198 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 199 BFD_JUMP_TABLE_SYMBOLS (coff), 200 BFD_JUMP_TABLE_RELOCS (coff), 201 BFD_JUMP_TABLE_WRITE (coff), 202 BFD_JUMP_TABLE_LINK (coff), 203 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 204 205 NULL, 206 207 COFF_SWAP_TABLE 208}; 209