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, Boston, MA 02111-1307, 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, and
44 the such LOC_BLOCK symbols use their fields in nonstandard ways. */
46 EXTERN struct symbol *global_sym_chain[HASHSIZE];
48 extern void common_block_start PARAMS ((char *, struct objfile *));
49 extern void common_block_end PARAMS ((struct objfile *));
51 /* Kludge for xcoffread.c */
60 EXTERN struct pending_stabs *global_stabs;
62 /* The type code that process_one_symbol saw on its previous invocation.
63 Used to detect pairs of N_SO symbols. */
65 EXTERN int previous_stab_code;
67 /* Support for Sun changes to dbx symbol format */
69 /* For each identified header file, we have a table of types defined
72 header_files maps header file names to their type tables.
73 It is a vector of n_header_files elements.
74 Each element describes one header file.
75 It contains a vector of types.
77 Sometimes it can happen that the same header file produces
78 different results when included in different places.
79 This can result from conditionals or from different
80 things done before including the file.
81 When this happens, there are multiple entries for the file in this table,
82 one entry for each distinct set of results.
83 The entries are distinguished by the INSTANCE field.
84 The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
85 used to match header-file references to their corresponding data. */
90 /* Name of header file */
94 /* Numeric code distinguishing instances of one header file that produced
95 different results when included. It comes from the N_BINCL or N_EXCL. */
99 /* Pointer to vector of types */
101 struct type **vector;
103 /* Allocated length (# elts) of that vector */
109 /* The table of header_files of this OBJFILE. */
110 #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
112 /* The actual length of HEADER_FILES. */
113 #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
115 /* The allocated lengh of HEADER_FILES. */
116 #define N_ALLOCATED_HEADER_FILES(OBJFILE) \
117 (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
119 /* Within each object file, various header files are assigned numbers.
120 A type is defined or referred to with a pair of numbers
121 (FILENUM,TYPENUM) where FILENUM is the number of the header file
122 and TYPENUM is the number within that header file.
123 TYPENUM is the index within the vector of types for that header file.
125 FILENUM == 0 is special; it refers to the main source of the object file,
126 and not to any header file. FILENUM != 1 is interpreted by looking it up
127 in the following table, which contains indices in header_files. */
129 EXTERN int *this_object_header_files;
131 EXTERN int n_this_object_header_files;
133 EXTERN int n_allocated_this_object_header_files;
135 extern struct complaint unknown_symtype_complaint;
136 extern struct complaint unknown_symchar_complaint;
139 read_type PARAMS ((char **, struct objfile *));
142 cleanup_undefined_types PARAMS ((void));
144 extern struct type **
145 dbx_lookup_type PARAMS ((int [2]));
148 read_number PARAMS ((char **, int));
151 add_undefined_type PARAMS ((struct type *));
153 extern struct symbol *
154 define_symbol PARAMS ((CORE_ADDR, char *, int, int, struct objfile *));
157 stabsread_init PARAMS ((void));
160 stabsread_new_init PARAMS ((void));
163 start_stabs PARAMS ((void));
166 end_stabs PARAMS ((void));
169 finish_global_stabs PARAMS ((struct objfile *objfile));
172 EXTERN int os9k_stabs;
174 /* COFF files can have multiple .stab sections, if they are linked
175 using --split-by-reloc. This linked list is used to pass the
176 information into the functions in dbxread.c. */
177 struct stab_section_list
180 struct stab_section_list *next;
186 /* Functions exported by dbxread.c. These are not in stabsread.c because
187 they are only used by some stabs readers. */
189 extern struct partial_symtab *
190 start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *,
191 CORE_ADDR, int, struct partial_symbol **,
192 struct partial_symbol **));
194 extern struct partial_symtab *
195 end_psymtab PARAMS ((struct partial_symtab *pst,
198 int capping_symbol_offset,
199 CORE_ADDR capping_text,
200 struct partial_symtab **dependency_list,
201 int number_dependencies,
202 int textlow_not_set));
205 process_one_symbol PARAMS ((int, int, CORE_ADDR, char *,
206 struct section_offsets *, struct objfile *));
208 extern void elfstab_build_psymtabs
209 PARAMS ((struct objfile *objfile,
210 struct section_offsets *section_offsets,
212 file_ptr staboff, unsigned int stabsize,
213 file_ptr stabstroffset,
214 unsigned int stabstrsize));
216 extern void coffstab_build_psymtabs
217 PARAMS ((struct objfile *objfile,
218 struct section_offsets *section_offsets,
220 CORE_ADDR textaddr, unsigned int textsize,
221 struct stab_section_list *stabs,
222 file_ptr stabstroffset,
223 unsigned int stabstrsize));
225 extern void stabsect_build_psymtabs
226 PARAMS ((struct objfile *objfile,
227 struct section_offsets *section_offsets,
233 extern void elfstab_offset_sections PARAMS ((struct objfile *,
234 struct partial_symtab *));
236 extern void process_later
237 PARAMS ((struct symbol *, char *,
238 int (*f) PARAMS ((struct objfile *, struct symbol *, char *))));
240 extern int symbol_reference_defined PARAMS ((char **));
242 extern void ref_add PARAMS ((int, struct symbol *, char *, CORE_ADDR));
244 extern struct symbol * ref_search PARAMS ((int));
246 extern int resolve_cfront_continuation
247 PARAMS ((struct objfile * objfile, struct symbol * sym, char * p));