| 1 | /* dwarf.h - DWARF support header file |
| 2 | Copyright 2005, 2007, 2008, 2009, 2010, 2011 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Binutils. |
| 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 | typedef unsigned HOST_WIDEST_INT dwarf_vma; |
| 23 | typedef HOST_WIDEST_INT dwarf_signed_vma; |
| 24 | typedef unsigned HOST_WIDEST_INT dwarf_size_type; |
| 25 | |
| 26 | /* Structure found in the .debug_line section. */ |
| 27 | typedef struct |
| 28 | { |
| 29 | unsigned char li_length [4]; |
| 30 | unsigned char li_version [2]; |
| 31 | unsigned char li_prologue_length [4]; |
| 32 | unsigned char li_min_insn_length [1]; |
| 33 | unsigned char li_default_is_stmt [1]; |
| 34 | unsigned char li_line_base [1]; |
| 35 | unsigned char li_line_range [1]; |
| 36 | unsigned char li_opcode_base [1]; |
| 37 | } |
| 38 | DWARF2_External_LineInfo; |
| 39 | |
| 40 | typedef struct |
| 41 | { |
| 42 | dwarf_vma li_length; |
| 43 | unsigned short li_version; |
| 44 | unsigned int li_prologue_length; |
| 45 | unsigned char li_min_insn_length; |
| 46 | unsigned char li_max_ops_per_insn; |
| 47 | unsigned char li_default_is_stmt; |
| 48 | int li_line_base; |
| 49 | unsigned char li_line_range; |
| 50 | unsigned char li_opcode_base; |
| 51 | } |
| 52 | DWARF2_Internal_LineInfo; |
| 53 | |
| 54 | /* Structure found in .debug_pubnames section. */ |
| 55 | typedef struct |
| 56 | { |
| 57 | unsigned char pn_length [4]; |
| 58 | unsigned char pn_version [2]; |
| 59 | unsigned char pn_offset [4]; |
| 60 | unsigned char pn_size [4]; |
| 61 | } |
| 62 | DWARF2_External_PubNames; |
| 63 | |
| 64 | typedef struct |
| 65 | { |
| 66 | dwarf_vma pn_length; |
| 67 | unsigned short pn_version; |
| 68 | dwarf_vma pn_offset; |
| 69 | dwarf_vma pn_size; |
| 70 | } |
| 71 | DWARF2_Internal_PubNames; |
| 72 | |
| 73 | /* Structure found in .debug_info section. */ |
| 74 | typedef struct |
| 75 | { |
| 76 | unsigned char cu_length [4]; |
| 77 | unsigned char cu_version [2]; |
| 78 | unsigned char cu_abbrev_offset [4]; |
| 79 | unsigned char cu_pointer_size [1]; |
| 80 | } |
| 81 | DWARF2_External_CompUnit; |
| 82 | |
| 83 | typedef struct |
| 84 | { |
| 85 | dwarf_vma cu_length; |
| 86 | unsigned short cu_version; |
| 87 | dwarf_vma cu_abbrev_offset; |
| 88 | unsigned char cu_pointer_size; |
| 89 | } |
| 90 | DWARF2_Internal_CompUnit; |
| 91 | |
| 92 | typedef struct |
| 93 | { |
| 94 | unsigned char ar_length [4]; |
| 95 | unsigned char ar_version [2]; |
| 96 | unsigned char ar_info_offset [4]; |
| 97 | unsigned char ar_pointer_size [1]; |
| 98 | unsigned char ar_segment_size [1]; |
| 99 | } |
| 100 | DWARF2_External_ARange; |
| 101 | |
| 102 | typedef struct |
| 103 | { |
| 104 | dwarf_vma ar_length; |
| 105 | unsigned short ar_version; |
| 106 | dwarf_vma ar_info_offset; |
| 107 | unsigned char ar_pointer_size; |
| 108 | unsigned char ar_segment_size; |
| 109 | } |
| 110 | DWARF2_Internal_ARange; |
| 111 | |
| 112 | struct dwarf_section |
| 113 | { |
| 114 | /* A debug section has a different name when it's stored compressed |
| 115 | or not. COMPRESSED_NAME and UNCOMPRESSED_NAME are the two |
| 116 | possibilities. NAME is set to whichever one is used for this |
| 117 | input file, as determined by load_debug_section(). */ |
| 118 | const char *uncompressed_name; |
| 119 | const char *compressed_name; |
| 120 | const char *name; |
| 121 | unsigned char *start; |
| 122 | dwarf_vma address; |
| 123 | dwarf_size_type size; |
| 124 | }; |
| 125 | |
| 126 | /* A structure containing the name of a debug section |
| 127 | and a pointer to a function that can decode it. */ |
| 128 | struct dwarf_section_display |
| 129 | { |
| 130 | struct dwarf_section section; |
| 131 | int (*display) (struct dwarf_section *, void *); |
| 132 | int *enabled; |
| 133 | unsigned int relocate : 1; |
| 134 | }; |
| 135 | |
| 136 | enum dwarf_section_display_enum |
| 137 | { |
| 138 | abbrev = 0, |
| 139 | aranges, |
| 140 | frame, |
| 141 | info, |
| 142 | line, |
| 143 | pubnames, |
| 144 | eh_frame, |
| 145 | macinfo, |
| 146 | macro, |
| 147 | str, |
| 148 | loc, |
| 149 | pubtypes, |
| 150 | ranges, |
| 151 | static_func, |
| 152 | static_vars, |
| 153 | types, |
| 154 | weaknames, |
| 155 | gdb_index, |
| 156 | trace_info, |
| 157 | trace_abbrev, |
| 158 | trace_aranges, |
| 159 | max |
| 160 | }; |
| 161 | |
| 162 | extern struct dwarf_section_display debug_displays []; |
| 163 | |
| 164 | /* This structure records the information that |
| 165 | we extract from the.debug_info section. */ |
| 166 | typedef struct |
| 167 | { |
| 168 | unsigned int pointer_size; |
| 169 | unsigned int offset_size; |
| 170 | int dwarf_version; |
| 171 | dwarf_vma cu_offset; |
| 172 | dwarf_vma base_address; |
| 173 | /* This is an array of offsets to the location list table. */ |
| 174 | dwarf_vma * loc_offsets; |
| 175 | int * have_frame_base; |
| 176 | unsigned int num_loc_offsets; |
| 177 | unsigned int max_loc_offsets; |
| 178 | /* List of .debug_ranges offsets seen in this .debug_info. */ |
| 179 | dwarf_vma * range_lists; |
| 180 | unsigned int num_range_lists; |
| 181 | unsigned int max_range_lists; |
| 182 | } |
| 183 | debug_info; |
| 184 | |
| 185 | extern int eh_addr_size; |
| 186 | |
| 187 | extern int do_debug_info; |
| 188 | extern int do_debug_abbrevs; |
| 189 | extern int do_debug_lines; |
| 190 | extern int do_debug_pubnames; |
| 191 | extern int do_debug_pubtypes; |
| 192 | extern int do_debug_aranges; |
| 193 | extern int do_debug_ranges; |
| 194 | extern int do_debug_frames; |
| 195 | extern int do_debug_frames_interp; |
| 196 | extern int do_debug_macinfo; |
| 197 | extern int do_debug_str; |
| 198 | extern int do_debug_loc; |
| 199 | extern int do_gdb_index; |
| 200 | extern int do_trace_info; |
| 201 | extern int do_trace_abbrevs; |
| 202 | extern int do_trace_aranges; |
| 203 | extern int do_wide; |
| 204 | |
| 205 | extern int dwarf_cutoff_level; |
| 206 | extern unsigned long dwarf_start_die; |
| 207 | |
| 208 | extern void init_dwarf_regnames (unsigned int); |
| 209 | extern void init_dwarf_regnames_i386 (void); |
| 210 | extern void init_dwarf_regnames_x86_64 (void); |
| 211 | |
| 212 | extern int load_debug_section (enum dwarf_section_display_enum, void *); |
| 213 | extern void free_debug_section (enum dwarf_section_display_enum); |
| 214 | |
| 215 | extern void free_debug_memory (void); |
| 216 | |
| 217 | extern void dwarf_select_sections_by_names (const char *); |
| 218 | extern void dwarf_select_sections_by_letters (const char *); |
| 219 | extern void dwarf_select_sections_all (void); |
| 220 | |
| 221 | void * cmalloc (size_t, size_t); |
| 222 | void * xcmalloc (size_t, size_t); |
| 223 | void * xcrealloc (void *, size_t, size_t); |
| 224 | |
| 225 | dwarf_vma read_leb128 (unsigned char *, unsigned int *, int); |