1 /* dwarf.h - DWARF support header file
2 Copyright (C) 2005-2018 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 #include "dwarf2.h" /* for enum dwarf_unit_type */
23 typedef unsigned HOST_WIDEST_INT dwarf_vma;
24 typedef HOST_WIDEST_INT dwarf_signed_vma;
25 typedef unsigned HOST_WIDEST_INT dwarf_size_type;
27 /* Structure found in the .debug_line section. */
31 unsigned short li_version;
32 dwarf_vma li_prologue_length;
33 unsigned char li_min_insn_length;
34 unsigned char li_max_ops_per_insn;
35 unsigned char li_default_is_stmt;
37 unsigned char li_line_range;
38 unsigned char li_opcode_base;
39 unsigned int li_offset_size;
41 DWARF2_Internal_LineInfo;
43 /* Structure found in .debug_pubnames section. */
47 unsigned short pn_version;
51 DWARF2_Internal_PubNames;
53 /* Structure found in .debug_info section. */
57 unsigned short cu_version;
58 dwarf_vma cu_abbrev_offset;
59 unsigned char cu_pointer_size;
60 enum dwarf_unit_type cu_unit_type;
62 DWARF2_Internal_CompUnit;
64 /* Structure found in .debug_aranges section. */
68 unsigned short ar_version;
69 dwarf_vma ar_info_offset;
70 unsigned char ar_pointer_size;
71 unsigned char ar_segment_size;
73 DWARF2_Internal_ARange;
75 /* N.B. The order here must match the order in debug_displays. */
77 enum dwarf_section_display_enum
127 /* A debug section has a different name when it's stored compressed
128 or not. COMPRESSED_NAME and UNCOMPRESSED_NAME are the two
129 possibilities. NAME is set to whichever one is used for this
130 input file, as determined by load_debug_section(). */
131 const char * uncompressed_name;
132 const char * compressed_name;
134 /* If non-NULL then FILENAME is the name of the separate debug info
135 file containing the section. */
136 const char * filename;
137 unsigned char * start;
139 dwarf_size_type size;
140 enum dwarf_section_display_enum abbrev_sec;
141 /* Used by clients to help them implement the reloc_at callback. */
143 unsigned long num_relocs;
144 /* A spare field for random use. */
148 /* A structure containing the name of a debug section
149 and a pointer to a function that can decode it. */
150 struct dwarf_section_display
152 struct dwarf_section section;
153 int (* display) (struct dwarf_section *, void *);
155 bfd_boolean relocate;
158 extern struct dwarf_section_display debug_displays [];
160 /* This structure records the information that
161 we extract from the.debug_info section. */
164 unsigned int pointer_size;
165 unsigned int offset_size;
168 dwarf_vma base_address;
169 /* This field is filled in when reading the attribute DW_AT_GNU_addr_base and
170 is used with the form DW_AT_GNU_FORM_addr_index. */
172 /* This field is filled in when reading the attribute DW_AT_GNU_ranges_base and
173 is used when calculating ranges. */
174 dwarf_vma ranges_base;
175 /* This is an array of offsets to the location list table. */
176 dwarf_vma * loc_offsets;
177 /* This is an array of offsets to the location view table. */
178 dwarf_vma * loc_views;
179 int * have_frame_base;
180 unsigned int num_loc_offsets;
181 unsigned int max_loc_offsets;
182 unsigned int num_loc_views;
183 /* List of .debug_ranges offsets seen in this .debug_info. */
184 dwarf_vma * range_lists;
185 unsigned int num_range_lists;
186 unsigned int max_range_lists;
190 extern unsigned int eh_addr_size;
192 extern int do_debug_info;
193 extern int do_debug_abbrevs;
194 extern int do_debug_lines;
195 extern int do_debug_pubnames;
196 extern int do_debug_pubtypes;
197 extern int do_debug_aranges;
198 extern int do_debug_ranges;
199 extern int do_debug_frames;
200 extern int do_debug_frames_interp;
201 extern int do_debug_macinfo;
202 extern int do_debug_str;
203 extern int do_debug_loc;
204 extern int do_gdb_index;
205 extern int do_trace_info;
206 extern int do_trace_abbrevs;
207 extern int do_trace_aranges;
208 extern int do_debug_addr;
209 extern int do_debug_cu_index;
211 extern int do_debug_links;
213 extern int dwarf_cutoff_level;
214 extern unsigned long dwarf_start_die;
216 extern int dwarf_check;
218 extern void init_dwarf_regnames (unsigned int);
219 extern void init_dwarf_regnames_i386 (void);
220 extern void init_dwarf_regnames_iamcu (void);
221 extern void init_dwarf_regnames_x86_64 (void);
222 extern void init_dwarf_regnames_aarch64 (void);
223 extern void init_dwarf_regnames_s390 (void);
224 extern void init_dwarf_regnames_riscv (void);
226 extern bfd_boolean load_debug_section (enum dwarf_section_display_enum, void *);
227 extern void free_debug_section (enum dwarf_section_display_enum);
228 extern void * load_separate_debug_file (void *, const char *);
229 extern void close_debug_file (void *);
230 extern void * open_debug_file (const char *);
232 extern void free_debug_memory (void);
234 extern void dwarf_select_sections_by_names (const char *);
235 extern void dwarf_select_sections_by_letters (const char *);
236 extern void dwarf_select_sections_all (void);
238 extern unsigned int * find_cu_tu_set (void *, unsigned int);
240 extern void * cmalloc (size_t, size_t);
241 extern void * xcalloc2 (size_t, size_t);
242 extern void * xcmalloc (size_t, size_t);
243 extern void * xcrealloc (void *, size_t, size_t);
245 extern dwarf_vma read_leb128 (unsigned char *, unsigned int *, bfd_boolean, const unsigned char * const);
247 /* A callback into the client. Returns TRUE if there is a
248 relocation against the given debug section at the given
250 extern bfd_boolean reloc_at (struct dwarf_section *, dwarf_vma);