binutils/dwarf.h

   1 /* dwarf.h - DWARF support header file
   2    Copyright 2005, 2007, 2008, 2009, 2010
   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 unsigned HOST_WIDEST_INT dwarf_size_type;
  24
  25 struct dwarf_section
  26 {
  27   /* A debug section has a different name when it's stored compressed
  28      or not.  COMPRESSED_NAME and UNCOMPRESSED_NAME are the two
  29      possibilities.  NAME is set to whichever one is used for this
  30      input file, as determined by load_debug_section().  */
  31   const char *uncompressed_name;
  32   const char *compressed_name;
  33   const char *name;
  34   unsigned char *start;
  35   dwarf_vma address;
  36   dwarf_size_type size;
  37 };
  38
  39 /* A structure containing the name of a debug section
  40    and a pointer to a function that can decode it.  */
  41 struct dwarf_section_display
  42 {
  43   struct dwarf_section section;
  44   int (*display) (struct dwarf_section *, void *);
  45   int *enabled;
  46   unsigned int relocate : 1;
  47 };
  48
  49 enum dwarf_section_display_enum
  50 {
  51   abbrev = 0,
  52   aranges,
  53   frame,
  54   info,
  55   line,
  56   pubnames,
  57   eh_frame,
  58   macinfo,
  59   str,
  60   loc,
  61   pubtypes,
  62   ranges,
  63   static_func,
  64   static_vars,
  65   types,
  66   weaknames,
  67   trace_info,
  68   trace_abbrev,
  69   trace_aranges,
  70   max
  71 };
  72
  73 extern struct dwarf_section_display debug_displays [];
  74
  75 /* This structure records the information that
  76    we extract from the.debug_info section.  */
  77 typedef struct
  78 {
  79   unsigned int   pointer_size;
  80   unsigned int   offset_size;
  81   int            dwarf_version;
  82   unsigned long  cu_offset;
  83   unsigned long  base_address;
  84   /* This is an array of offsets to the location list table.  */
  85   unsigned long *loc_offsets;
  86   int           *have_frame_base;
  87   unsigned int   num_loc_offsets;
  88   unsigned int   max_loc_offsets;
  89   /* List of .debug_ranges offsets seen in this .debug_info.  */
  90   unsigned long *range_lists;
  91   unsigned int   num_range_lists;
  92   unsigned int   max_range_lists;
  93 }
  94 debug_info;
  95
  96 extern int eh_addr_size;
  97
  98 extern int do_debug_info;
  99 extern int do_debug_abbrevs;
 100 extern int do_debug_lines;
 101 extern int do_debug_pubnames;
 102 extern int do_debug_pubtypes;
 103 extern int do_debug_aranges;
 104 extern int do_debug_ranges;
 105 extern int do_debug_frames;
 106 extern int do_debug_frames_interp;
 107 extern int do_debug_macinfo;
 108 extern int do_debug_str;
 109 extern int do_debug_loc;
 110 extern int do_gdb_index;
 111 extern int do_trace_info;
 112 extern int do_trace_abbrevs;
 113 extern int do_trace_aranges;
 114 extern int do_wide;
 115
 116 extern void init_dwarf_regnames (unsigned int);
 117 extern void init_dwarf_regnames_i386 (void);
 118 extern void init_dwarf_regnames_x86_64 (void);
 119
 120 extern int load_debug_section (enum dwarf_section_display_enum,
 121                                void *);
 122 extern void free_debug_section (enum dwarf_section_display_enum);
 123
 124 extern void free_debug_memory (void);
 125
 126 extern void dwarf_select_sections_by_names (const char *);
 127 extern void dwarf_select_sections_by_letters (const char *);
 128 extern void dwarf_select_sections_all (void);
 129
 130 void *cmalloc (size_t, size_t);
 131 void *xcmalloc (size_t, size_t);
 132 void *xcrealloc (void *, size_t, size_t);
 133
 134 unsigned long int read_leb128 (unsigned char *data,
 135                                unsigned int *length_return, int sign);