1 /* BFD back-end for HP/Intel IA-64 COFF files. 2 Copyright (C) 1999-2014 Free Software Foundation, Inc. 3 Contributed by David Mosberger <davidm (at) hpl.hp.com> 4 5 This file is part of BFD, the Binary File Descriptor library. 6 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 3 of the License, or 10 (at your option) any later version. 11 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. 16 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., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 #include "sysdep.h" 23 #include "bfd.h" 24 #include "libbfd.h" 25 #include "coff/ia64.h" 26 #include "coff/internal.h" 27 #include "coff/pe.h" 28 #include "libcoff.h" 29 30 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) 31 32 /* Windows ia64 uses 8K page size. */ 33 #define COFF_PAGE_SIZE 0x2000 34 35 static reloc_howto_type howto_table[] = 36 { 37 EMPTY_HOWTO (0), 38 }; 39 40 #define BADMAG(x) IA64BADMAG(x) 41 #define IA64 1 /* Customize coffcode.h */ 42 43 #ifdef COFF_WITH_pep 44 # undef AOUTSZ 45 # define AOUTSZ PEPAOUTSZ 46 # define PEAOUTHDR PEPAOUTHDR 47 #endif 48 49 #define RTYPE2HOWTO(cache_ptr, dst) \ 50 (cache_ptr)->howto = howto_table + (dst)->r_type; 51 52 #ifdef COFF_WITH_PE 53 /* Return TRUE if this relocation should 54 appear in the output .reloc section. */ 55 56 static bfd_boolean 57 in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED, 58 reloc_howto_type *howto ATTRIBUTE_UNUSED) 59 { 60 return FALSE; /* We don't do relocs for now... */ 61 } 62 #endif 63 64 #ifndef bfd_pe_print_pdata 65 #define bfd_pe_print_pdata NULL 66 #endif 67 68 #include "coffcode.h" 69 70 static const bfd_target * 71 ia64coff_object_p (bfd *abfd) 72 { 73 #ifdef COFF_IMAGE_WITH_PE 74 { 75 struct external_PEI_DOS_hdr dos_hdr; 76 struct external_PEI_IMAGE_hdr image_hdr; 77 file_ptr offset; 78 79 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 80 || (bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd) 81 != sizeof (dos_hdr))) 82 { 83 if (bfd_get_error () != bfd_error_system_call) 84 bfd_set_error (bfd_error_wrong_format); 85 return NULL; 86 } 87 88 /* There are really two magic numbers involved; the magic number 89 that says this is a NT executable (PEI) and the magic number 90 that determines the architecture. The former is DOSMAGIC, 91 stored in the e_magic field. The latter is stored in the 92 f_magic field. If the NT magic number isn't valid, the 93 architecture magic number could be mimicked by some other 94 field (specifically, the number of relocs in section 3). Since 95 this routine can only be called correctly for a PEI file, check 96 the e_magic number here, and, if it doesn't match, clobber the 97 f_magic number so that we don't get a false match. */ 98 if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC) 99 { 100 bfd_set_error (bfd_error_wrong_format); 101 return NULL; 102 } 103 104 offset = H_GET_32 (abfd, dos_hdr.e_lfanew); 105 if (bfd_seek (abfd, offset, SEEK_SET) != 0 106 || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd) 107 != sizeof (image_hdr))) 108 { 109 if (bfd_get_error () != bfd_error_system_call) 110 bfd_set_error (bfd_error_wrong_format); 111 return NULL; 112 } 113 114 if (H_GET_32 (abfd, image_hdr.nt_signature) 115 != 0x4550) 116 { 117 bfd_set_error (bfd_error_wrong_format); 118 return NULL; 119 } 120 121 /* Here is the hack. coff_object_p wants to read filhsz bytes to 122 pick up the COFF header for PE, see "struct external_PEI_filehdr" 123 in include/coff/pe.h. We adjust so that that will work. */ 124 if (bfd_seek (abfd, offset - sizeof (dos_hdr), SEEK_SET) != 0) 125 { 126 if (bfd_get_error () != bfd_error_system_call) 127 bfd_set_error (bfd_error_wrong_format); 128 return NULL; 129 } 130 } 131 #endif 132 133 return coff_object_p (abfd); 134 } 135 136 const bfd_target 137 #ifdef TARGET_SYM 138 TARGET_SYM = 139 #else 140 ia64coff_vec = 141 #endif 142 { 143 #ifdef TARGET_NAME 144 TARGET_NAME, 145 #else 146 "coff-ia64", /* name */ 147 #endif 148 bfd_target_coff_flavour, 149 BFD_ENDIAN_LITTLE, /* data byte order is little */ 150 BFD_ENDIAN_LITTLE, /* header byte order is little */ 151 152 (HAS_RELOC | EXEC_P | /* object flags */ 153 HAS_LINENO | HAS_DEBUG | 154 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), 155 156 #ifndef COFF_WITH_PE 157 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ 158 | SEC_CODE | SEC_DATA), 159 #else 160 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ 161 | SEC_CODE | SEC_DATA 162 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 163 #endif 164 165 #ifdef TARGET_UNDERSCORE 166 TARGET_UNDERSCORE, /* leading underscore */ 167 #else 168 0, /* leading underscore */ 169 #endif 170 '/', /* ar_pad_char */ 171 15, /* ar_max_namelen */ 172 0, /* match priority. */ 173 174 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 175 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 176 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ 177 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 178 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 179 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ 180 181 /* Note that we allow an object file to be treated as a core file as well. */ 182 {_bfd_dummy_target, ia64coff_object_p, /* bfd_check_format */ 183 bfd_generic_archive_p, ia64coff_object_p}, 184 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ 185 bfd_false}, 186 {bfd_false, coff_write_object_contents, /* bfd_write_contents */ 187 _bfd_write_archive_contents, bfd_false}, 188 189 BFD_JUMP_TABLE_GENERIC (coff), 190 BFD_JUMP_TABLE_COPY (coff), 191 BFD_JUMP_TABLE_CORE (_bfd_nocore), 192 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 193 BFD_JUMP_TABLE_SYMBOLS (coff), 194 BFD_JUMP_TABLE_RELOCS (coff), 195 BFD_JUMP_TABLE_WRITE (coff), 196 BFD_JUMP_TABLE_LINK (coff), 197 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 198 199 NULL, 200 201 COFF_SWAP_TABLE 202 }; 203
