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 start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *,
192 CORE_ADDR, int, struct partial_symbol **,
193 struct partial_symbol **));
195 extern struct partial_symtab *
196 end_psymtab PARAMS ((struct partial_symtab * pst,
199 int capping_symbol_offset,
200 CORE_ADDR capping_text,
201 struct partial_symtab ** dependency_list,
202 int number_dependencies,
203 int textlow_not_set));
206 process_one_symbol PARAMS ((int, int, CORE_ADDR, char *,
207 struct section_offsets *, struct objfile *));
209 extern void elfstab_build_psymtabs
210 PARAMS ((struct objfile * objfile,
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,
219 CORE_ADDR textaddr, unsigned int textsize,
220 struct stab_section_list * stabs,
221 file_ptr stabstroffset,
222 unsigned int stabstrsize));
224 extern void stabsect_build_psymtabs
225 PARAMS ((struct objfile * objfile,
231 extern void elfstab_offset_sections PARAMS ((struct objfile *,
232 struct partial_symtab *));
234 extern void process_later
235 PARAMS ((struct symbol *, char *,
236 int (*f) PARAMS ((struct objfile *, struct symbol *, char *))));
238 extern int symbol_reference_defined PARAMS ((char **));
240 extern void ref_add PARAMS ((int, struct symbol *, char *, CORE_ADDR));
242 extern struct symbol *ref_search PARAMS ((int));
244 extern int resolve_cfront_continuation
245 PARAMS ((struct objfile * objfile, struct symbol * sym, char *p));