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c906108c SS |
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 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
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. | |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b JM |
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, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | /* This file exists to hold the common definitions required of most of | |
23 | the symbol-readers that end up using stabs. The common use of | |
24 | these `symbol-type-specific' customizations of the generic data | |
25 | structures makes the stabs-oriented symbol readers able to call | |
26 | each others' functions as required. */ | |
27 | ||
28 | #if !defined (GDBSTABS_H) | |
29 | #define GDBSTABS_H | |
30 | ||
31 | /* Offsets in the psymtab's section_offsets array for various kinds of | |
32 | stabs symbols. Every psymtab built from stabs will have these offsets | |
33 | filled in by these guidelines, so that when actually reading symbols, the | |
34 | proper offset can simply be selected and added to the symbol value. */ | |
35 | ||
36 | #define SECT_OFF_TEXT 0 | |
37 | #define SECT_OFF_DATA 1 | |
38 | #define SECT_OFF_BSS 2 | |
39 | #define SECT_OFF_RODATA 3 | |
2acceee2 | 40 | #define SECT_OFF_MAX 16 /* Count of possible values */ |
c906108c SS |
41 | |
42 | /* The stab_section_info chain remembers info from the ELF symbol table, | |
43 | while psymtabs are being built for the other symbol tables in the | |
44 | objfile. It is destroyed at the complation of psymtab-reading. | |
45 | Any info that was used from it has been copied into psymtabs. */ | |
46 | ||
c5aa993b JM |
47 | struct stab_section_info |
48 | { | |
49 | char *filename; | |
50 | CORE_ADDR sections[SECT_OFF_MAX]; | |
51 | struct stab_section_info *next; | |
52 | int found; /* Count of times it's found in searching */ | |
53 | }; | |
c906108c SS |
54 | |
55 | /* Information is passed among various dbxread routines for accessing | |
56 | symbol files. A pointer to this structure is kept in the sym_stab_info | |
57 | field of the objfile struct. */ | |
c5aa993b JM |
58 | |
59 | struct dbx_symfile_info | |
60 | { | |
61 | CORE_ADDR text_addr; /* Start of text section */ | |
62 | int text_size; /* Size of text section */ | |
63 | int symcount; /* How many symbols are there in the file */ | |
64 | char *stringtab; /* The actual string table */ | |
65 | int stringtab_size; /* Its size */ | |
66 | file_ptr symtab_offset; /* Offset in file to symbol table */ | |
67 | int symbol_size; /* Bytes in a single symbol */ | |
68 | struct stab_section_info *stab_section_info; /* section starting points | |
69 | of the original .o files before linking. */ | |
70 | ||
71 | /* See stabsread.h for the use of the following. */ | |
72 | struct header_file *header_files; | |
73 | int n_header_files; | |
74 | int n_allocated_header_files; | |
75 | ||
76 | /* Pointers to BFD sections. These are used to speed up the building of | |
77 | minimal symbols. */ | |
78 | asection *text_section; | |
79 | asection *data_section; | |
80 | asection *bss_section; | |
81 | }; | |
c906108c SS |
82 | |
83 | #define DBX_SYMFILE_INFO(o) ((o)->sym_stab_info) | |
84 | #define DBX_TEXT_ADDR(o) (DBX_SYMFILE_INFO(o)->text_addr) | |
85 | #define DBX_TEXT_SIZE(o) (DBX_SYMFILE_INFO(o)->text_size) | |
86 | #define DBX_SYMCOUNT(o) (DBX_SYMFILE_INFO(o)->symcount) | |
87 | #define DBX_STRINGTAB(o) (DBX_SYMFILE_INFO(o)->stringtab) | |
88 | #define DBX_STRINGTAB_SIZE(o) (DBX_SYMFILE_INFO(o)->stringtab_size) | |
89 | #define DBX_SYMTAB_OFFSET(o) (DBX_SYMFILE_INFO(o)->symtab_offset) | |
90 | #define DBX_SYMBOL_SIZE(o) (DBX_SYMFILE_INFO(o)->symbol_size) | |
91 | #define DBX_TEXT_SECTION(o) (DBX_SYMFILE_INFO(o)->text_section) | |
92 | #define DBX_DATA_SECTION(o) (DBX_SYMFILE_INFO(o)->data_section) | |
93 | #define DBX_BSS_SECTION(o) (DBX_SYMFILE_INFO(o)->bss_section) | |
94 | ||
95 | #endif /* GDBSTABS_H */ |