1 /* 2 3 Copyright (C) 2014-2014 David Anderson. All Rights Reserved. 4 5 This program is free software; you can redistribute it and/or modify it 6 under the terms of version 2.1 of the GNU Lesser General Public License 7 as published by the Free Software Foundation. 8 9 This program is distributed in the hope that it would be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 13 Further, this software is distributed without any warranty that it is 14 free of the rightful claim of any third person regarding infringement 15 or the like. Any license provided herein, whether implied or 16 otherwise, applies only to this software file. Patent licenses, if 17 any, provided herein do not apply to combinations of this program with 18 other software, or any other product whatsoever. 19 20 You should have received a copy of the GNU Lesser General Public 21 License along with this program; if not, write the Free Software 22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston MA 02110-1301, 23 USA. 24 25 26 */ 27 28 29 30 /* The following is based on 31 The gdb online documentation at 32 https://sourceware.org/gdb/onlinedocs/gdb/ 33 Appendix J, ".gdb_index section format". 34 */ 35 36 37 /* These are the two types .gdb_index uses. 38 the offset_type (32 bits) and other fields 39 defined 64 bits. We use our own Dwarf_Unsigned 40 for all the interfaces, these are just for reading 41 the section data. 42 43 The section data is defined to be in little-endian regardless of 44 the target machine. 45 We use our host endianness in all interfaces. 46 47 We simply assume unsigned int is 32 bits FIXME. 48 */ 49 50 typedef unsigned int gdbindex_offset_type; 51 typedef Dwarf_Unsigned gdbindex_64; 52 53 enum gdbindex_type_e { 54 git_unknown, 55 git_std, 56 git_address, 57 git_cuvec 58 }; 59 60 struct Dwarf_Gdbindex_array_instance_s { 61 Dwarf_Small * dg_base; 62 Dwarf_Unsigned dg_count; 63 /* the in_object struct size. */ 64 Dwarf_Unsigned dg_entry_length; 65 /* The size of a single field in the in-object struct */ 66 int dg_fieldlen; 67 /* The address_area type is a bit irregular. */ 68 enum gdbindex_type_e dg_type; 69 }; 70 71 struct Dwarf_Gdbindex_s { 72 Dwarf_Debug gi_dbg; 73 Dwarf_Small * gi_section_data; 74 Dwarf_Unsigned gi_section_length; 75 76 Dwarf_Unsigned gi_version; 77 Dwarf_Unsigned gi_cu_list_offset; 78 Dwarf_Unsigned gi_types_cu_list_offset; 79 Dwarf_Unsigned gi_address_area_offset; 80 Dwarf_Unsigned gi_symbol_table_offset; 81 Dwarf_Unsigned gi_constant_pool_offset; 82 struct Dwarf_Gdbindex_array_instance_s gi_culisthdr; 83 struct Dwarf_Gdbindex_array_instance_s gi_typesculisthdr; 84 struct Dwarf_Gdbindex_array_instance_s gi_addressareahdr; 85 struct Dwarf_Gdbindex_array_instance_s gi_symboltablehdr; 86 struct Dwarf_Gdbindex_array_instance_s gi_cuvectorhdr; 87 88 Dwarf_Small * gi_string_pool; 89 }; 90