gdb/gdb-stabs.h

   1 /* Definitions for symbol-reading containing "stabs", for GDB.
   2    Copyright (C) 1992-2017 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support.  Written by John Gilmore.
   4
   5    This file is part of GDB.
   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, see <http://www.gnu.org/licenses/>.  */
  19
  20 /* This file exists to hold the common definitions required of most of
  21    the symbol-readers that end up using stabs.  The common use of
  22    these `symbol-type-specific' customizations of the generic data
  23    structures makes the stabs-oriented symbol readers able to call
  24    each others' functions as required.  */
  25
  26 #if !defined (GDBSTABS_H)
  27 #define GDBSTABS_H
  28
  29 /* The tag used to find the DBX info attached to an objfile.  This is
  30    global because it is referenced by several modules.  */
  31 extern const struct objfile_data *dbx_objfile_data_key;
  32
  33 /* Information is passed among various dbxread routines for accessing
  34    symbol files.  A pointer to this structure is kept in the objfile,
  35    using the dbx_objfile_data_key.  */
  36
  37 struct dbx_symfile_info
  38   {
  39     CORE_ADDR text_addr;        /* Start of text section */
  40     int text_size;              /* Size of text section */
  41     int symcount;               /* How many symbols are there in the file */
  42     char *stringtab;            /* The actual string table */
  43     int stringtab_size;         /* Its size */
  44     file_ptr symtab_offset;     /* Offset in file to symbol table */
  45     int symbol_size;            /* Bytes in a single symbol */
  46
  47     /* See stabsread.h for the use of the following.  */
  48     struct header_file *header_files;
  49     int n_header_files;
  50     int n_allocated_header_files;
  51
  52     /* Pointers to BFD sections.  These are used to speed up the building of
  53        minimal symbols.  */
  54     asection *text_section;
  55     asection *data_section;
  56     asection *bss_section;
  57
  58     /* Pointer to the separate ".stab" section, if there is one.  */
  59     asection *stab_section;
  60   };
  61
  62 #define DBX_SYMFILE_INFO(o) \
  63   ((struct dbx_symfile_info *) objfile_data ((o), dbx_objfile_data_key))
  64 #define DBX_TEXT_ADDR(o)        (DBX_SYMFILE_INFO(o)->text_addr)
  65 #define DBX_TEXT_SIZE(o)        (DBX_SYMFILE_INFO(o)->text_size)
  66 #define DBX_SYMCOUNT(o)         (DBX_SYMFILE_INFO(o)->symcount)
  67 #define DBX_STRINGTAB(o)        (DBX_SYMFILE_INFO(o)->stringtab)
  68 #define DBX_STRINGTAB_SIZE(o)   (DBX_SYMFILE_INFO(o)->stringtab_size)
  69 #define DBX_SYMTAB_OFFSET(o)    (DBX_SYMFILE_INFO(o)->symtab_offset)
  70 #define DBX_SYMBOL_SIZE(o)      (DBX_SYMFILE_INFO(o)->symbol_size)
  71 #define DBX_TEXT_SECTION(o)     (DBX_SYMFILE_INFO(o)->text_section)
  72 #define DBX_DATA_SECTION(o)     (DBX_SYMFILE_INFO(o)->data_section)
  73 #define DBX_BSS_SECTION(o)      (DBX_SYMFILE_INFO(o)->bss_section)
  74 #define DBX_STAB_SECTION(o)     (DBX_SYMFILE_INFO(o)->stab_section)
  75
  76 #endif /* GDBSTABS_H */