| 1 | /* BFD back-end for Intel/AMD x86_64 PECOFF files. |
| 2 | Copyright (C) 2006-2021 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of BFD, the Binary File Descriptor library. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 19 | MA 02110-1301, USA. |
| 20 | |
| 21 | Written by Kai Tietz, OneVision Software GmbH&CoKg. */ |
| 22 | |
| 23 | #include "sysdep.h" |
| 24 | #include "bfd.h" |
| 25 | #include "coff/internal.h" |
| 26 | #include "libcoff.h" |
| 27 | |
| 28 | #define TARGET_SYM x86_64_pe_vec |
| 29 | #define TARGET_NAME "pe-x86-64" |
| 30 | #define TARGET_SYM_BIG x86_64_pe_big_vec |
| 31 | #define TARGET_NAME_BIG "pe-bigobj-x86-64" |
| 32 | #define COFF_WITH_PE |
| 33 | #define COFF_WITH_pex64 |
| 34 | #define COFF_WITH_PE_BIGOBJ |
| 35 | #define PCRELOFFSET TRUE |
| 36 | #if defined (USE_MINGW64_LEADING_UNDERSCORES) |
| 37 | #define TARGET_UNDERSCORE '_' |
| 38 | #else |
| 39 | #define TARGET_UNDERSCORE 0 |
| 40 | #endif |
| 41 | #define COFF_LONG_SECTION_NAMES |
| 42 | #define COFF_SUPPORT_GNU_LINKONCE |
| 43 | #define COFF_LONG_FILENAMES |
| 44 | |
| 45 | #define COFF_SECTION_ALIGNMENT_ENTRIES \ |
| 46 | { COFF_SECTION_NAME_EXACT_MATCH (".bss"), \ |
| 47 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ |
| 48 | { COFF_SECTION_NAME_PARTIAL_MATCH (".data"), \ |
| 49 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ |
| 50 | { COFF_SECTION_NAME_PARTIAL_MATCH (".rdata"), \ |
| 51 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ |
| 52 | { COFF_SECTION_NAME_PARTIAL_MATCH (".text"), \ |
| 53 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ |
| 54 | { COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \ |
| 55 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ |
| 56 | { COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \ |
| 57 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ |
| 58 | { COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \ |
| 59 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ |
| 60 | { COFF_SECTION_NAME_PARTIAL_MATCH (".zdebug"), \ |
| 61 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ |
| 62 | { COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \ |
| 63 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 } |
| 64 | |
| 65 | /* The function pex64_bfd_print_pdata is implemented in pei-x86_64.c |
| 66 | source, but has be extended to also handle pe objects. */ |
| 67 | extern bfd_boolean pex64_bfd_print_pdata (bfd *, void *); |
| 68 | |
| 69 | #define bfd_pe_print_pdata pex64_bfd_print_pdata |
| 70 | |
| 71 | static bfd_boolean |
| 72 | pex64_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
| 73 | { |
| 74 | if (bfd_link_pde (info) |
| 75 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) |
| 76 | { |
| 77 | /* NB: When linking Windows x86-64 relocatable object files to |
| 78 | generate ELF executable, create an indirect reference to |
| 79 | __executable_start for __ImageBase to support R_AMD64_IMAGEBASE |
| 80 | relocation which is relative to __ImageBase. */ |
| 81 | struct bfd_link_hash_entry *h, *hi; |
| 82 | hi = bfd_link_hash_lookup (info->hash, "__ImageBase", TRUE, FALSE, |
| 83 | FALSE); |
| 84 | if (hi->type == bfd_link_hash_new |
| 85 | || hi->type == bfd_link_hash_undefined |
| 86 | || hi->type == bfd_link_hash_undefweak) |
| 87 | { |
| 88 | h = bfd_link_hash_lookup (info->hash, "__executable_start", |
| 89 | TRUE, FALSE, TRUE); |
| 90 | hi->type = bfd_link_hash_indirect; |
| 91 | hi->u.i.link = h; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | return _bfd_coff_link_add_symbols (abfd, info); |
| 96 | } |
| 97 | |
| 98 | #define coff_bfd_link_add_symbols pex64_link_add_symbols |
| 99 | |
| 100 | #include "coff-x86_64.c" |