| 1 | /* Definitions for symbol-reading containing "stabs", for GDB. |
| 2 | Copyright 1992 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | /* This file exists to hold the common definitions required of most of |
| 22 | the symbol-readers that end up using stabs. The common use of |
| 23 | these `symbol-type-specific' customizations of the generic data |
| 24 | structures makes the stabs-oriented symbol readers able to call |
| 25 | each others' functions as required. */ |
| 26 | |
| 27 | #if !defined (GDBSTABS_H) |
| 28 | #define GDBSTABS_H |
| 29 | |
| 30 | /* Offsets in the psymtab's section_offsets array for various kinds of |
| 31 | stabs symbols. Every psymtab built from stabs will have these offsets |
| 32 | filled in by these guidelines, so that when actually reading symbols, the |
| 33 | proper offset can simply be selected and added to the symbol value. */ |
| 34 | |
| 35 | #define SECT_OFF_TEXT 0 |
| 36 | #define SECT_OFF_DATA 1 |
| 37 | #define SECT_OFF_BSS 2 |
| 38 | #define SECT_OFF_RODATA 3 |
| 39 | #define SECT_OFF_MAX 4 /* Count of possible values */ |
| 40 | |
| 41 | /* The stab_section_info chain remembers info from the ELF symbol table, |
| 42 | while psymtabs are being built for the other symbol tables in the |
| 43 | objfile. It is destroyed at the complation of psymtab-reading. |
| 44 | Any info that was used from it has been copied into psymtabs. */ |
| 45 | |
| 46 | struct stab_section_info { |
| 47 | char *filename; |
| 48 | CORE_ADDR sections[SECT_OFF_MAX]; |
| 49 | struct stab_section_info *next; |
| 50 | int found; /* Count of times it's found in searching */ |
| 51 | }; |
| 52 | |
| 53 | /* Information is passed among various dbxread routines for accessing |
| 54 | symbol files. A pointer to this structure is kept in the sym_stab_info |
| 55 | field of the objfile struct. */ |
| 56 | |
| 57 | struct dbx_symfile_info { |
| 58 | CORE_ADDR text_addr; /* Start of text section */ |
| 59 | int text_size; /* Size of text section */ |
| 60 | int symcount; /* How many symbols are there in the file */ |
| 61 | char *stringtab; /* The actual string table */ |
| 62 | int stringtab_size; /* Its size */ |
| 63 | file_ptr symtab_offset; /* Offset in file to symbol table */ |
| 64 | int symbol_size; /* Bytes in a single symbol */ |
| 65 | struct stab_section_info *stab_section_info; /* section starting points |
| 66 | of the original .o files before linking. */ |
| 67 | |
| 68 | /* See stabsread.h for the use of the following. */ |
| 69 | struct header_file *header_files; |
| 70 | int n_header_files; |
| 71 | int n_allocated_header_files; |
| 72 | |
| 73 | /* Pointers to BFD sections. These are used to speed up the building of |
| 74 | minimal symbols. */ |
| 75 | asection *text_section; |
| 76 | asection *data_section; |
| 77 | asection *bss_section; |
| 78 | }; |
| 79 | |
| 80 | #define DBX_SYMFILE_INFO(o) ((o)->sym_stab_info) |
| 81 | #define DBX_TEXT_ADDR(o) (DBX_SYMFILE_INFO(o)->text_addr) |
| 82 | #define DBX_TEXT_SIZE(o) (DBX_SYMFILE_INFO(o)->text_size) |
| 83 | #define DBX_SYMCOUNT(o) (DBX_SYMFILE_INFO(o)->symcount) |
| 84 | #define DBX_STRINGTAB(o) (DBX_SYMFILE_INFO(o)->stringtab) |
| 85 | #define DBX_STRINGTAB_SIZE(o) (DBX_SYMFILE_INFO(o)->stringtab_size) |
| 86 | #define DBX_SYMTAB_OFFSET(o) (DBX_SYMFILE_INFO(o)->symtab_offset) |
| 87 | #define DBX_SYMBOL_SIZE(o) (DBX_SYMFILE_INFO(o)->symbol_size) |
| 88 | #define DBX_TEXT_SECTION(o) (DBX_SYMFILE_INFO(o)->text_section) |
| 89 | #define DBX_DATA_SECTION(o) (DBX_SYMFILE_INFO(o)->data_section) |
| 90 | #define DBX_BSS_SECTION(o) (DBX_SYMFILE_INFO(o)->bss_section) |
| 91 | |
| 92 | #endif /* GDBSTABS_H */ |