| 1 | /* BFD back-end for HP/Intel IA-64 COFF files. |
| 2 | Copyright (C) 1999-2018 Free Software Foundation, Inc. |
| 3 | Contributed by David Mosberger <davidm@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; |
| 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_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 IMAGE_DOS_SIGNATURE, |
| 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) != IMAGE_DOS_SIGNATURE) |
| 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_check_format */ |
| 183 | _bfd_dummy_target, |
| 184 | ia64coff_object_p, |
| 185 | bfd_generic_archive_p, |
| 186 | ia64coff_object_p |
| 187 | }, |
| 188 | { /* bfd_set_format */ |
| 189 | _bfd_bool_bfd_false_error, |
| 190 | coff_mkobject, |
| 191 | _bfd_generic_mkarchive, |
| 192 | _bfd_bool_bfd_false_error |
| 193 | }, |
| 194 | { /* bfd_write_contents */ |
| 195 | _bfd_bool_bfd_false_error, |
| 196 | coff_write_object_contents, |
| 197 | _bfd_write_archive_contents, |
| 198 | _bfd_bool_bfd_false_error |
| 199 | }, |
| 200 | |
| 201 | BFD_JUMP_TABLE_GENERIC (coff), |
| 202 | BFD_JUMP_TABLE_COPY (coff), |
| 203 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 204 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
| 205 | BFD_JUMP_TABLE_SYMBOLS (coff), |
| 206 | BFD_JUMP_TABLE_RELOCS (coff), |
| 207 | BFD_JUMP_TABLE_WRITE (coff), |
| 208 | BFD_JUMP_TABLE_LINK (coff), |
| 209 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 210 | |
| 211 | NULL, |
| 212 | |
| 213 | COFF_SWAP_TABLE |
| 214 | }; |