| 1 | /* BFD COFF interfaces used outside of BFD. |
| 2 | Copyright (C) 1990-2019 Free Software Foundation, Inc. |
| 3 | Written by Cygnus Support. |
| 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 | /* This structure is used for a comdat section, as in PE. A comdat |
| 23 | section is associated with a particular symbol. When the linker |
| 24 | sees a comdat section, it keeps only one of the sections with a |
| 25 | given name and associated with a given symbol. */ |
| 26 | |
| 27 | struct coff_comdat_info |
| 28 | { |
| 29 | /* The name of the symbol associated with a comdat section. */ |
| 30 | const char *name; |
| 31 | |
| 32 | /* The local symbol table index of the symbol associated with a |
| 33 | comdat section. This is only meaningful to the object file format |
| 34 | specific code; it is not an index into the list returned by |
| 35 | bfd_canonicalize_symtab. */ |
| 36 | long symbol; |
| 37 | }; |
| 38 | |
| 39 | /* The used_by_bfd field of a section may be set to a pointer to this |
| 40 | structure. */ |
| 41 | |
| 42 | struct coff_section_tdata |
| 43 | { |
| 44 | /* The relocs, swapped into COFF internal form. This may be NULL. */ |
| 45 | struct internal_reloc *relocs; |
| 46 | /* If this is TRUE, the relocs entry may not be freed. */ |
| 47 | bfd_boolean keep_relocs; |
| 48 | /* The section contents. This may be NULL. */ |
| 49 | bfd_byte *contents; |
| 50 | /* If this is TRUE, the contents entry may not be freed. */ |
| 51 | bfd_boolean keep_contents; |
| 52 | /* Information cached by coff_find_nearest_line. */ |
| 53 | bfd_boolean saved_bias; |
| 54 | bfd_signed_vma bias; |
| 55 | bfd_vma offset; |
| 56 | unsigned int i; |
| 57 | const char *function; |
| 58 | /* Optional information about a COMDAT entry; NULL if not COMDAT. */ |
| 59 | struct coff_comdat_info *comdat; |
| 60 | int line_base; |
| 61 | /* A pointer used for .stab linking optimizations. */ |
| 62 | void * stab_info; |
| 63 | /* Available for individual backends. */ |
| 64 | void * tdata; |
| 65 | }; |
| 66 | |
| 67 | /* An accessor macro for the coff_section_tdata structure. */ |
| 68 | #define coff_section_data(abfd, sec) \ |
| 69 | ((struct coff_section_tdata *) (sec)->used_by_bfd) |
| 70 | |
| 71 | #define bfd_coff_get_comdat_section(abfd, sec) \ |
| 72 | ((bfd_get_flavour (abfd) == bfd_target_coff_flavour \ |
| 73 | && coff_section_data (abfd, sec) != NULL) \ |
| 74 | ? coff_section_data (abfd, sec)->comdat : NULL) |
| 75 | |
| 76 | #define coff_symbol_from(symbol) \ |
| 77 | ((bfd_family_coff (bfd_asymbol_bfd (symbol)) \ |
| 78 | && bfd_asymbol_bfd (symbol)->tdata.coff_obj_data) \ |
| 79 | ? (coff_symbol_type *) (symbol) : NULL) |
| 80 | |
| 81 | struct internal_syment; |
| 82 | union internal_auxent; |
| 83 | |
| 84 | extern bfd_boolean bfd_coff_get_syment |
| 85 | (bfd *, struct bfd_symbol *, struct internal_syment *); |
| 86 | |
| 87 | extern bfd_boolean bfd_coff_get_auxent |
| 88 | (bfd *, struct bfd_symbol *, int, union internal_auxent *); |
| 89 | |
| 90 | extern bfd_boolean bfd_coff_set_symbol_class |
| 91 | (bfd *, struct bfd_symbol *, unsigned int); |