1 /* Include file for stabs debugging format support functions.
2 Copyright (C) 1986-1997, 1999-2003, 2007-2012 Free Software
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 3 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, see <http://www.gnu.org/licenses/>. */
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
91 produced different results when included. It comes from the
96 /* Pointer to vector of types */
100 /* Allocated length (# elts) of that vector */
106 /* The table of header_files of this OBJFILE. */
107 #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
109 /* The actual length of HEADER_FILES. */
110 #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
112 /* The allocated lengh of HEADER_FILES. */
113 #define N_ALLOCATED_HEADER_FILES(OBJFILE) \
114 (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
116 /* Within each object file, various header files are assigned numbers.
117 A type is defined or referred to with a pair of numbers
118 (FILENUM,TYPENUM) where FILENUM is the number of the header file
119 and TYPENUM is the number within that header file.
120 TYPENUM is the index within the vector of types for that header file.
122 FILENUM == 0 is special; it refers to the main source of the object file,
123 and not to any header file. FILENUM != 1 is interpreted by looking it up
124 in the following table, which contains indices in header_files. */
126 EXTERN int *this_object_header_files;
128 EXTERN int n_this_object_header_files;
130 EXTERN int n_allocated_this_object_header_files;
132 extern void cleanup_undefined_stabs_types (struct objfile *);
134 extern long read_number (char **, int);
136 extern struct symbol *define_symbol (CORE_ADDR, char *, int, int,
139 extern void stabsread_init (void);
141 extern void stabsread_new_init (void);
143 extern void start_stabs (void);
145 extern void end_stabs (void);
147 extern void finish_global_stabs (struct objfile *objfile);
149 /* COFF files can have multiple .stab sections, if they are linked
150 using --split-by-reloc. This linked list is used to pass the
151 information into the functions in dbxread.c. */
152 struct stab_section_list
155 struct stab_section_list *next;
161 /* Functions exported by dbxread.c. These are not in stabsread.c because
162 they are only used by some stabs readers. */
164 extern struct partial_symtab *end_psymtab (struct objfile *objfile,
165 struct partial_symtab *pst,
166 const char **include_list,
168 int capping_symbol_offset,
169 CORE_ADDR capping_text,
170 struct partial_symtab
172 int number_dependencies,
173 int textlow_not_set);
175 extern void process_one_symbol (int, int, CORE_ADDR, char *,
176 struct section_offsets *, struct objfile *);
178 extern void elfstab_build_psymtabs (struct objfile *objfile,
180 file_ptr stabstroffset,
181 unsigned int stabstrsize);
183 extern void coffstab_build_psymtabs
184 (struct objfile *objfile,
185 CORE_ADDR textaddr, unsigned int textsize,
186 struct stab_section_list *stabs,
187 file_ptr stabstroffset, unsigned int stabstrsize);
189 extern void stabsect_build_psymtabs (struct objfile *objfile, char *stab_name,
190 char *stabstr_name, char *text_name);
192 extern void elfstab_offset_sections (struct objfile *,
193 struct partial_symtab *);
194 extern int symbol_reference_defined (char **);
196 extern void ref_add (int, struct symbol *, char *, CORE_ADDR);
198 extern struct symbol *ref_search (int);
200 extern void free_header_files (void);
202 extern void init_header_files (void);