1 /* Include file for stabs debugging format support functions.
2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
3 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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. */
22 /* Definitions, prototypes, etc for stabs debugging format support
25 Variables declared in this file can be defined by #define-ing
26 the name EXTERN to null. It is used to declare variables that
27 are normally extern, but which get defined in a single module
28 using this technique. */
34 /* Hash table of global symbols whose values are not known yet.
35 They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
36 have the correct data for that slot yet.
38 The use of the LOC_BLOCK code in this chain is nonstandard--
39 it refers to a FORTRAN common block rather than the usual meaning, and
40 the such LOC_BLOCK symbols use their fields in nonstandard ways. */
42 EXTERN
struct symbol
*global_sym_chain
[HASHSIZE
];
44 extern void common_block_start (char *, struct objfile
*);
45 extern void common_block_end (struct objfile
*);
47 /* Kludge for xcoffread.c */
56 EXTERN
struct pending_stabs
*global_stabs
;
58 /* The type code that process_one_symbol saw on its previous invocation.
59 Used to detect pairs of N_SO symbols. */
61 EXTERN
int previous_stab_code
;
63 /* Support for Sun changes to dbx symbol format */
65 /* For each identified header file, we have a table of types defined
68 header_files maps header file names to their type tables.
69 It is a vector of n_header_files elements.
70 Each element describes one header file.
71 It contains a vector of types.
73 Sometimes it can happen that the same header file produces
74 different results when included in different places.
75 This can result from conditionals or from different
76 things done before including the file.
77 When this happens, there are multiple entries for the file in this table,
78 one entry for each distinct set of results.
79 The entries are distinguished by the INSTANCE field.
80 The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
81 used to match header-file references to their corresponding data. */
86 /* Name of header file */
90 /* Numeric code distinguishing instances of one header file that produced
91 different results when included. It comes from the N_BINCL or N_EXCL. */
95 /* Pointer to vector of types */
99 /* Allocated length (# elts) of that vector */
105 /* The table of header_files of this OBJFILE. */
106 #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
108 /* The actual length of HEADER_FILES. */
109 #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
111 /* The allocated lengh of HEADER_FILES. */
112 #define N_ALLOCATED_HEADER_FILES(OBJFILE) \
113 (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
115 /* Within each object file, various header files are assigned numbers.
116 A type is defined or referred to with a pair of numbers
117 (FILENUM,TYPENUM) where FILENUM is the number of the header file
118 and TYPENUM is the number within that header file.
119 TYPENUM is the index within the vector of types for that header file.
121 FILENUM == 0 is special; it refers to the main source of the object file,
122 and not to any header file. FILENUM != 1 is interpreted by looking it up
123 in the following table, which contains indices in header_files. */
125 EXTERN
int *this_object_header_files
;
127 EXTERN
int n_this_object_header_files
;
129 EXTERN
int n_allocated_this_object_header_files
;
131 extern struct type
*read_type (char **, struct objfile
*);
133 extern void cleanup_undefined_types (void);
135 extern struct type
**dbx_lookup_type (int[2]);
137 extern long read_number (char **, int);
139 extern void add_undefined_type (struct type
*);
141 extern struct symbol
*define_symbol (CORE_ADDR
, char *, int, int,
144 extern void stabsread_init (void);
146 extern void stabsread_new_init (void);
148 extern void start_stabs (void);
150 extern void end_stabs (void);
152 extern void finish_global_stabs (struct objfile
*objfile
);
154 #if 0 /* OBSOLETE OS9K */
155 // OBSOLETE EXTERN int os9k_stabs;
156 #endif /* OBSOLETE OS9K */
158 /* COFF files can have multiple .stab sections, if they are linked
159 using --split-by-reloc. This linked list is used to pass the
160 information into the functions in dbxread.c. */
161 struct stab_section_list
164 struct stab_section_list
*next
;
170 /* Functions exported by dbxread.c. These are not in stabsread.c because
171 they are only used by some stabs readers. */
173 extern struct partial_symtab
*end_psymtab (struct partial_symtab
*pst
,
176 int capping_symbol_offset
,
177 CORE_ADDR capping_text
,
178 struct partial_symtab
180 int number_dependencies
,
181 int textlow_not_set
);
183 extern void process_one_symbol (int, int, CORE_ADDR
, char *,
184 struct section_offsets
*, struct objfile
*);
186 extern void elfstab_build_psymtabs (struct objfile
*objfile
,
188 file_ptr staboff
, unsigned int stabsize
,
189 file_ptr stabstroffset
,
190 unsigned int stabstrsize
);
192 extern void coffstab_build_psymtabs
193 (struct objfile
*objfile
,
195 CORE_ADDR textaddr
, unsigned int textsize
,
196 struct stab_section_list
*stabs
,
197 file_ptr stabstroffset
, unsigned int stabstrsize
);
199 extern void stabsect_build_psymtabs
200 (struct objfile
*objfile
,
201 int mainline
, char *stab_name
, char *stabstr_name
, char *text_name
);
203 extern void elfstab_offset_sections (struct objfile
*,
204 struct partial_symtab
*);
206 extern void process_later
207 (struct symbol
*, char *,
208 int (*f
) (struct objfile
*, struct symbol
*, char *));
210 extern int symbol_reference_defined (char **);
212 extern void ref_add (int, struct symbol
*, char *, CORE_ADDR
);
214 extern struct symbol
*ref_search (int);
216 extern int resolve_cfront_continuation
217 (struct objfile
*objfile
, struct symbol
*sym
, char *p
);
219 extern void free_header_files (void);
221 extern void init_header_files (void);