1 /* Include file for stabs debugging format support functions.
2 Copyright (C) 1986-1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
20 /* Definitions, prototypes, etc for stabs debugging format support
23 Variables declared in this file can be defined by #define-ing
24 the name EXTERN to null. It is used to declare variables that
25 are normally extern, but which get defined in a single module
26 using this technique. */
32 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
34 #ifndef STAB_REG_TO_REGNUM
35 #define STAB_REG_TO_REGNUM(VALUE) (VALUE)
38 /* Hash table of global symbols whose values are not known yet.
39 They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
40 have the correct data for that slot yet.
42 The use of the LOC_BLOCK code in this chain is nonstandard--
43 it refers to a FORTRAN common block rather than the usual meaning. */
45 EXTERN struct symbol *global_sym_chain[HASHSIZE];
47 /* Kludge for xcoffread.c */
56 EXTERN struct pending_stabs *global_stabs;
58 /* List of symbols declared since the last BCOMM. This list is a tail
59 of local_symbols. When ECOMM is seen, the symbols on the list
60 are noted so their proper addresses can be filled in later,
61 using the common block base address gotten from the assembler
64 EXTERN struct pending *common_block;
65 EXTERN int common_block_i;
67 /* The type code that process_one_symbol saw on its previous invocation.
68 Used to detect pairs of N_SO symbols. */
70 EXTERN int previous_stab_code;
72 /* Setup a define to deal cleanly with the underscore problem */
74 #ifdef NAMES_HAVE_UNDERSCORE
81 /* Support for Sun changes to dbx symbol format */
83 /* For each identified header file, we have a table of types defined
86 header_files maps header file names to their type tables.
87 It is a vector of n_header_files elements.
88 Each element describes one header file.
89 It contains a vector of types.
91 Sometimes it can happen that the same header file produces
92 different results when included in different places.
93 This can result from conditionals or from different
94 things done before including the file.
95 When this happens, there are multiple entries for the file in this table,
96 one entry for each distinct set of results.
97 The entries are distinguished by the INSTANCE field.
98 The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
99 used to match header-file references to their corresponding data. */
104 /* Name of header file */
108 /* Numeric code distinguishing instances of one header file that produced
109 different results when included. It comes from the N_BINCL or N_EXCL. */
113 /* Pointer to vector of types */
115 struct type **vector;
117 /* Allocated length (# elts) of that vector */
123 EXTERN struct header_file *header_files;
125 EXTERN int n_header_files;
127 EXTERN int n_allocated_header_files;
129 /* Within each object file, various header files are assigned numbers.
130 A type is defined or referred to with a pair of numbers
131 (FILENUM,TYPENUM) where FILENUM is the number of the header file
132 and TYPENUM is the number within that header file.
133 TYPENUM is the index within the vector of types for that header file.
135 FILENUM == 1 is special; it refers to the main source of the object file,
136 and not to any header file. FILENUM != 1 is interpreted by looking it up
137 in the following table, which contains indices in header_files. */
139 EXTERN int *this_object_header_files;
141 EXTERN int n_this_object_header_files;
143 EXTERN int n_allocated_this_object_header_files;
145 extern struct complaint unknown_symtype_complaint;
148 read_type_number PARAMS ((char **, int *));
151 read_type PARAMS ((char **, struct objfile *));
154 cleanup_undefined_types PARAMS ((void));
156 extern struct type **
157 dbx_lookup_type PARAMS ((int [2]));
160 read_number PARAMS ((char **, int));
163 add_undefined_type PARAMS ((struct type *));
165 extern struct symbol *
166 define_symbol PARAMS ((unsigned int, char *, int, int, struct objfile *));
168 extern struct partial_symtab *
169 start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *,
170 CORE_ADDR, int, struct partial_symbol *,
171 struct partial_symbol *));
174 end_psymtab PARAMS ((struct partial_symtab *, char **, int, int, CORE_ADDR,
175 struct partial_symtab **, int));
178 process_one_symbol PARAMS ((int, int, CORE_ADDR, char *,
179 struct section_offsets *, struct objfile *));
182 stabsread_init PARAMS ((void));
185 stabsread_new_init PARAMS ((void));
188 start_stabs PARAMS ((void));
191 end_stabs PARAMS ((void));
194 finish_global_stabs PARAMS ((struct objfile *objfile));