1 /* Include file for stabs debugging format support functions.
2 Copyright (C) 1986-2016 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 3 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, see <http://www.gnu.org/licenses/>. */
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 /* Hash table of global symbols whose values are not known yet.
34 They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
35 have the correct data for that slot yet.
37 The use of the LOC_BLOCK code in this chain is nonstandard--
38 it refers to a FORTRAN common block rather than the usual meaning, and
39 the such LOC_BLOCK symbols use their fields in nonstandard ways. */
41 EXTERN struct symbol *global_sym_chain[HASHSIZE];
43 extern void common_block_start (char *, struct objfile *);
44 extern void common_block_end (struct objfile *);
46 /* Kludge for xcoffread.c */
55 EXTERN struct pending_stabs *global_stabs;
57 /* The type code that process_one_symbol saw on its previous invocation.
58 Used to detect pairs of N_SO symbols. */
60 EXTERN int previous_stab_code;
62 /* Support for Sun changes to dbx symbol format. */
64 /* For each identified header file, we have a table of types defined
67 header_files maps header file names to their type tables.
68 It is a vector of n_header_files elements.
69 Each element describes one header file.
70 It contains a vector of types.
72 Sometimes it can happen that the same header file produces
73 different results when included in different places.
74 This can result from conditionals or from different
75 things done before including the file.
76 When this happens, there are multiple entries for the file in this table,
77 one entry for each distinct set of results.
78 The entries are distinguished by the INSTANCE field.
79 The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
80 used to match header-file references to their corresponding data. */
85 /* Name of header file */
89 /* Numeric code distinguishing instances of one header file that
90 produced different results when included. It comes from the
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 void cleanup_undefined_stabs_types (struct objfile *);
133 extern long read_number (char **, int);
135 extern struct symbol *define_symbol (CORE_ADDR, char *, int, int,
138 extern void stabsread_init (void);
140 extern void stabsread_new_init (void);
142 extern void start_stabs (void);
144 extern void end_stabs (void);
146 extern void finish_global_stabs (struct objfile *objfile);
148 /* COFF files can have multiple .stab sections, if they are linked
149 using --split-by-reloc. This linked list is used to pass the
150 information into the functions in dbxread.c. */
151 struct stab_section_list
154 struct stab_section_list *next;
160 /* Functions exported by dbxread.c. These are not in stabsread.c because
161 they are only used by some stabs readers. */
163 extern struct partial_symtab *dbx_end_psymtab
164 (struct objfile *objfile, struct partial_symtab *pst,
165 const char **include_list, int num_includes,
166 int capping_symbol_offset, CORE_ADDR capping_text,
167 struct partial_symtab **dependency_list, int number_dependencies,
168 int textlow_not_set);
170 extern void process_one_symbol (int, int, CORE_ADDR, char *,
171 const struct section_offsets *,
174 extern void elfstab_build_psymtabs (struct objfile *objfile,
176 file_ptr stabstroffset,
177 unsigned int stabstrsize);
179 extern void coffstab_build_psymtabs
180 (struct objfile *objfile,
181 CORE_ADDR textaddr, unsigned int textsize,
182 struct stab_section_list *stabs,
183 file_ptr stabstroffset, unsigned int stabstrsize);
185 extern void stabsect_build_psymtabs (struct objfile *objfile, char *stab_name,
186 char *stabstr_name, char *text_name);
188 extern int symbol_reference_defined (char **);
190 extern void ref_add (int, struct symbol *, char *, CORE_ADDR);
192 extern struct symbol *ref_search (int);
194 extern void free_header_files (void);
196 extern void init_header_files (void);