1 /* dwarf.h - DWARF support header file
2 Copyright (C) 2005-2015 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
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.
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.
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. */
21 typedef unsigned HOST_WIDEST_INT dwarf_vma;
22 typedef HOST_WIDEST_INT dwarf_signed_vma;
23 typedef unsigned HOST_WIDEST_INT dwarf_size_type;
25 /* Structure found in the .debug_line section. */
29 unsigned short li_version;
30 dwarf_vma li_prologue_length;
31 unsigned char li_min_insn_length;
32 unsigned char li_max_ops_per_insn;
33 unsigned char li_default_is_stmt;
35 unsigned char li_line_range;
36 unsigned char li_opcode_base;
38 DWARF2_Internal_LineInfo;
40 /* Structure found in .debug_pubnames section. */
44 unsigned short pn_version;
48 DWARF2_Internal_PubNames;
50 /* Structure found in .debug_info section. */
54 unsigned short cu_version;
55 dwarf_vma cu_abbrev_offset;
56 unsigned char cu_pointer_size;
58 DWARF2_Internal_CompUnit;
60 /* Structure found in .debug_aranges section. */
64 unsigned short ar_version;
65 dwarf_vma ar_info_offset;
66 unsigned char ar_pointer_size;
67 unsigned char ar_segment_size;
69 DWARF2_Internal_ARange;
71 /* N.B. The order here must match the order in debug_displays. */
73 enum dwarf_section_display_enum
116 /* A debug section has a different name when it's stored compressed
117 or not. COMPRESSED_NAME and UNCOMPRESSED_NAME are the two
118 possibilities. NAME is set to whichever one is used for this
119 input file, as determined by load_debug_section(). */
120 const char *uncompressed_name;
121 const char *compressed_name;
123 unsigned char *start;
125 dwarf_size_type size;
126 enum dwarf_section_display_enum abbrev_sec;
128 /* Used by clients to help them implement the reloc_at callback. */
130 unsigned long num_relocs;
132 /* A spare field for random use. */
136 /* A structure containing the name of a debug section
137 and a pointer to a function that can decode it. */
138 struct dwarf_section_display
140 struct dwarf_section section;
141 int (*display) (struct dwarf_section *, void *);
143 bfd_boolean relocate;
146 extern struct dwarf_section_display debug_displays [];
148 /* This structure records the information that
149 we extract from the.debug_info section. */
152 unsigned int pointer_size;
153 unsigned int offset_size;
156 dwarf_vma base_address;
157 /* This field is filled in when reading the attribute DW_AT_GNU_addr_base and
158 is used with the form DW_AT_GNU_FORM_addr_index. */
160 /* This field is filled in when reading the attribute DW_AT_GNU_ranges_base and
161 is used when calculating ranges. */
162 dwarf_vma ranges_base;
163 /* This is an array of offsets to the location list table. */
164 dwarf_vma * loc_offsets;
165 int * have_frame_base;
166 unsigned int num_loc_offsets;
167 unsigned int max_loc_offsets;
168 /* List of .debug_ranges offsets seen in this .debug_info. */
169 dwarf_vma * range_lists;
170 unsigned int num_range_lists;
171 unsigned int max_range_lists;
175 extern unsigned int eh_addr_size;
177 extern int do_debug_info;
178 extern int do_debug_abbrevs;
179 extern int do_debug_lines;
180 extern int do_debug_pubnames;
181 extern int do_debug_pubtypes;
182 extern int do_debug_aranges;
183 extern int do_debug_ranges;
184 extern int do_debug_frames;
185 extern int do_debug_frames_interp;
186 extern int do_debug_macinfo;
187 extern int do_debug_str;
188 extern int do_debug_loc;
189 extern int do_gdb_index;
190 extern int do_trace_info;
191 extern int do_trace_abbrevs;
192 extern int do_trace_aranges;
193 extern int do_debug_addr;
194 extern int do_debug_cu_index;
197 extern int dwarf_cutoff_level;
198 extern unsigned long dwarf_start_die;
200 extern int dwarf_check;
202 extern void init_dwarf_regnames (unsigned int);
203 extern void init_dwarf_regnames_i386 (void);
204 extern void init_dwarf_regnames_iamcu (void);
205 extern void init_dwarf_regnames_x86_64 (void);
206 extern void init_dwarf_regnames_aarch64 (void);
208 extern int load_debug_section (enum dwarf_section_display_enum, void *);
209 extern void free_debug_section (enum dwarf_section_display_enum);
211 extern void free_debug_memory (void);
213 extern void dwarf_select_sections_by_names (const char *);
214 extern void dwarf_select_sections_by_letters (const char *);
215 extern void dwarf_select_sections_all (void);
217 extern unsigned int * find_cu_tu_set (void *, unsigned int);
219 extern void * cmalloc (size_t, size_t);
220 extern void * xcalloc2 (size_t, size_t);
221 extern void * xcmalloc (size_t, size_t);
222 extern void * xcrealloc (void *, size_t, size_t);
224 extern dwarf_vma read_leb128 (unsigned char *, unsigned int *, bfd_boolean, const unsigned char * const);
226 /* A callback into the client. Retuns TRUE if there is a
227 relocation against the given debug section at the given
229 extern bfd_boolean reloc_at (struct dwarf_section *, dwarf_vma);