1 /* Include file for stabs debugging format support functions.
2 Copyright 1986-1991, 1992, 1993 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Definitions, prototypes, etc for stabs debugging format support
24 Variables declared in this file can be defined by #define-ing
25 the name EXTERN to null. It is used to declare variables that
26 are normally extern, but which get defined in a single module
27 using this technique. */
33 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
35 #ifndef STAB_REG_TO_REGNUM
36 #define STAB_REG_TO_REGNUM(VALUE) (VALUE)
39 /* Hash table of global symbols whose values are not known yet.
40 They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
41 have the correct data for that slot yet.
43 The use of the LOC_BLOCK code in this chain is nonstandard--
44 it refers to a FORTRAN common block rather than the usual meaning, and
45 the such LOC_BLOCK symbols use their fields in nonstandard ways. */
47 EXTERN
struct symbol
*global_sym_chain
[HASHSIZE
];
49 extern void common_block_start
PARAMS ((char *, struct objfile
*));
50 extern void common_block_end
PARAMS ((struct objfile
*));
52 /* Kludge for xcoffread.c */
61 EXTERN
struct pending_stabs
*global_stabs
;
63 /* The type code that process_one_symbol saw on its previous invocation.
64 Used to detect pairs of N_SO symbols. */
66 EXTERN
int previous_stab_code
;
68 /* Support for Sun changes to dbx symbol format */
70 /* For each identified header file, we have a table of types defined
73 header_files maps header file names to their type tables.
74 It is a vector of n_header_files elements.
75 Each element describes one header file.
76 It contains a vector of types.
78 Sometimes it can happen that the same header file produces
79 different results when included in different places.
80 This can result from conditionals or from different
81 things done before including the file.
82 When this happens, there are multiple entries for the file in this table,
83 one entry for each distinct set of results.
84 The entries are distinguished by the INSTANCE field.
85 The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
86 used to match header-file references to their corresponding data. */
91 /* Name of header file */
95 /* Numeric code distinguishing instances of one header file that produced
96 different results when included. It comes from the N_BINCL or N_EXCL. */
100 /* Pointer to vector of types */
102 struct type
**vector
;
104 /* Allocated length (# elts) of that vector */
110 /* The table of header_files of this OBJFILE. */
111 #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
113 /* The actual length of HEADER_FILES. */
114 #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
116 /* The allocated lengh of HEADER_FILES. */
117 #define N_ALLOCATED_HEADER_FILES(OBJFILE) \
118 (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
120 /* Within each object file, various header files are assigned numbers.
121 A type is defined or referred to with a pair of numbers
122 (FILENUM,TYPENUM) where FILENUM is the number of the header file
123 and TYPENUM is the number within that header file.
124 TYPENUM is the index within the vector of types for that header file.
126 FILENUM == 0 is special; it refers to the main source of the object file,
127 and not to any header file. FILENUM != 1 is interpreted by looking it up
128 in the following table, which contains indices in header_files. */
130 EXTERN
int *this_object_header_files
;
132 EXTERN
int n_this_object_header_files
;
134 EXTERN
int n_allocated_this_object_header_files
;
136 extern struct complaint unknown_symtype_complaint
;
137 extern struct complaint unknown_symchar_complaint
;
140 read_type
PARAMS ((char **, struct objfile
*));
143 cleanup_undefined_types
PARAMS ((void));
145 extern struct type
**
146 dbx_lookup_type
PARAMS ((int[2]));
149 read_number
PARAMS ((char **, int));
152 add_undefined_type
PARAMS ((struct type
*));
154 extern struct symbol
*
155 define_symbol
PARAMS ((CORE_ADDR
, char *, int, int, struct objfile
*));
158 stabsread_init
PARAMS ((void));
161 stabsread_new_init
PARAMS ((void));
164 start_stabs
PARAMS ((void));
167 end_stabs
PARAMS ((void));
170 finish_global_stabs
PARAMS ((struct objfile
* objfile
));
173 EXTERN
int os9k_stabs
;
175 /* COFF files can have multiple .stab sections, if they are linked
176 using --split-by-reloc. This linked list is used to pass the
177 information into the functions in dbxread.c. */
178 struct stab_section_list
181 struct stab_section_list
*next
;
187 /* Functions exported by dbxread.c. These are not in stabsread.c because
188 they are only used by some stabs readers. */
190 extern struct partial_symtab
*
191 end_psymtab
PARAMS ((struct partial_symtab
* pst
,
194 int capping_symbol_offset
,
195 CORE_ADDR capping_text
,
196 struct partial_symtab
** dependency_list
,
197 int number_dependencies
,
198 int textlow_not_set
));
201 process_one_symbol
PARAMS ((int, int, CORE_ADDR
, char *,
202 struct section_offsets
*, struct objfile
*));
204 extern void elfstab_build_psymtabs
205 PARAMS ((struct objfile
* objfile
,
207 file_ptr staboff
, unsigned int stabsize
,
208 file_ptr stabstroffset
,
209 unsigned int stabstrsize
));
211 extern void coffstab_build_psymtabs
212 PARAMS ((struct objfile
* objfile
,
214 CORE_ADDR textaddr
, unsigned int textsize
,
215 struct stab_section_list
* stabs
,
216 file_ptr stabstroffset
,
217 unsigned int stabstrsize
));
219 extern void stabsect_build_psymtabs
220 PARAMS ((struct objfile
* objfile
,
226 extern void elfstab_offset_sections
PARAMS ((struct objfile
*,
227 struct partial_symtab
*));
229 extern void process_later
230 PARAMS ((struct symbol
*, char *,
231 int (*f
) PARAMS ((struct objfile
*, struct symbol
*, char *))));
233 extern int symbol_reference_defined
PARAMS ((char **));
235 extern void ref_add
PARAMS ((int, struct symbol
*, char *, CORE_ADDR
));
237 extern struct symbol
*ref_search
PARAMS ((int));
239 extern int resolve_cfront_continuation
240 PARAMS ((struct objfile
* objfile
, struct symbol
* sym
, char *p
));