gdb/gdb-stabs.h

   1 /* Definitions for symbol-reading containing "stabs", for GDB.
   2    Copyright (C) 1992-2020 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 #ifndef GDB_STABS_H
  21 #define GDB_STABS_H
  22
  23 /* This file exists to hold the common definitions required of most of
  24    the symbol-readers that end up using stabs.  The common use of
  25    these `symbol-type-specific' customizations of the generic data
  26    structures makes the stabs-oriented symbol readers able to call
  27    each others' functions as required.  */
  28
  29
  30 /* Information is passed among various dbxread routines for accessing
  31    symbol files.  A pointer to this structure is kept in the objfile,
  32    using the dbx_objfile_data_key.  */
  33
  34 struct dbx_symfile_info
  35   {
  36     ~dbx_symfile_info ();
  37
  38     CORE_ADDR text_addr = 0;    /* Start of text section */
  39     int text_size = 0;          /* Size of text section */
  40     int symcount = 0;           /* How many symbols are there in the file */
  41     char *stringtab = nullptr;          /* The actual string table */
  42     int stringtab_size = 0;             /* Its size */
  43     file_ptr symtab_offset = 0; /* Offset in file to symbol table */
  44     int symbol_size = 0;                /* Bytes in a single symbol */
  45
  46     /* See stabsread.h for the use of the following.  */
  47     struct header_file *header_files = nullptr;
  48     int n_header_files = 0;
  49     int n_allocated_header_files = 0;
  50
  51     /* Pointers to BFD sections.  These are used to speed up the building of
  52        minimal symbols.  */
  53     asection *text_section = nullptr;
  54     asection *data_section = nullptr;
  55     asection *bss_section = nullptr;
  56
  57     /* Pointer to the separate ".stab" section, if there is one.  */
  58     asection *stab_section = nullptr;
  59   };
  60
  61 /* The tag used to find the DBX info attached to an objfile.  This is
  62    global because it is referenced by several modules.  */
  63 extern objfile_key<dbx_symfile_info> dbx_objfile_data_key;
  64
  65 #define DBX_SYMFILE_INFO(o)     (dbx_objfile_data_key.get (o))
  66 #define DBX_TEXT_ADDR(o)        (DBX_SYMFILE_INFO(o)->text_addr)
  67 #define DBX_TEXT_SIZE(o)        (DBX_SYMFILE_INFO(o)->text_size)
  68 #define DBX_SYMCOUNT(o)         (DBX_SYMFILE_INFO(o)->symcount)
  69 #define DBX_STRINGTAB(o)        (DBX_SYMFILE_INFO(o)->stringtab)
  70 #define DBX_STRINGTAB_SIZE(o)   (DBX_SYMFILE_INFO(o)->stringtab_size)
  71 #define DBX_SYMTAB_OFFSET(o)    (DBX_SYMFILE_INFO(o)->symtab_offset)
  72 #define DBX_SYMBOL_SIZE(o)      (DBX_SYMFILE_INFO(o)->symbol_size)
  73 #define DBX_TEXT_SECTION(o)     (DBX_SYMFILE_INFO(o)->text_section)
  74 #define DBX_DATA_SECTION(o)     (DBX_SYMFILE_INFO(o)->data_section)
  75 #define DBX_BSS_SECTION(o)      (DBX_SYMFILE_INFO(o)->bss_section)
  76 #define DBX_STAB_SECTION(o)     (DBX_SYMFILE_INFO(o)->stab_section)
  77
  78 #endif /* GDB_STABS_H */