Commit | Line | Data |
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c906108c | 1 | /* Build symbol tables in GDB's internal format. |
b6ba6518 | 2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1996, |
1e698235 | 3 | 1997, 1998, 1999, 2000, 2002, 2003 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b JM |
5 | This file is part of GDB. |
6 | ||
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 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #if !defined (BUILDSYM_H) | |
23 | #define BUILDSYM_H 1 | |
24 | ||
25 | /* This module provides definitions used for creating and adding to | |
26 | the symbol table. These routines are called from various symbol- | |
27 | file-reading routines. | |
28 | ||
29 | They originated in dbxread.c of gdb-4.2, and were split out to | |
30 | make xcoffread.c more maintainable by sharing code. | |
31 | ||
32 | Variables declared in this file can be defined by #define-ing the | |
33 | name EXTERN to null. It is used to declare variables that are | |
34 | normally extern, but which get defined in a single module using | |
35 | this technique. */ | |
36 | ||
fe898f56 DC |
37 | struct block; |
38 | ||
c906108c SS |
39 | #ifndef EXTERN |
40 | #define EXTERN extern | |
41 | #endif | |
42 | ||
43 | #define HASHSIZE 127 /* Size of things hashed via | |
44 | hashname() */ | |
45 | ||
46 | /* Name of source file whose symbol data we are now processing. This | |
47 | comes from a symbol of type N_SO. */ | |
48 | ||
49 | EXTERN char *last_source_file; | |
50 | ||
51 | /* Core address of start of text of current source file. This too | |
52 | comes from the N_SO symbol. */ | |
53 | ||
54 | EXTERN CORE_ADDR last_source_start_addr; | |
55 | ||
56 | /* The list of sub-source-files within the current individual | |
57 | compilation. Each file gets its own symtab with its own linetable | |
58 | and associated info, but they all share one blockvector. */ | |
59 | ||
60 | struct subfile | |
61 | { | |
62 | struct subfile *next; | |
63 | char *name; | |
64 | char *dirname; | |
65 | struct linetable *line_vector; | |
66 | int line_vector_length; | |
67 | enum language language; | |
68 | char *debugformat; | |
69 | }; | |
70 | ||
71 | EXTERN struct subfile *subfiles; | |
72 | ||
73 | EXTERN struct subfile *current_subfile; | |
74 | ||
75 | /* Global variable which, when set, indicates that we are processing a | |
76 | .o file compiled with gcc */ | |
77 | ||
78 | EXTERN unsigned char processing_gcc_compilation; | |
79 | ||
80 | /* When set, we are processing a .o file compiled by sun acc. This is | |
81 | misnamed; it refers to all stabs-in-elf implementations which use | |
82 | N_UNDF the way Sun does, including Solaris gcc. Hopefully all | |
83 | stabs-in-elf implementations ever invented will choose to be | |
84 | compatible. */ | |
85 | ||
86 | EXTERN unsigned char processing_acc_compilation; | |
87 | ||
c906108c SS |
88 | /* Count symbols as they are processed, for error messages. */ |
89 | ||
90 | EXTERN unsigned int symnum; | |
91 | ||
92 | /* Record the symbols defined for each context in a list. We don't | |
93 | create a struct block for the context until we know how long to | |
94 | make it. */ | |
95 | ||
96 | #define PENDINGSIZE 100 | |
97 | ||
98 | struct pending | |
99 | { | |
100 | struct pending *next; | |
101 | int nsyms; | |
102 | struct symbol *symbol[PENDINGSIZE]; | |
103 | }; | |
104 | ||
105 | /* Here are the three lists that symbols are put on. */ | |
106 | ||
107 | /* static at top level, and types */ | |
108 | ||
109 | EXTERN struct pending *file_symbols; | |
110 | ||
111 | /* global functions and variables */ | |
112 | ||
113 | EXTERN struct pending *global_symbols; | |
114 | ||
115 | /* everything local to lexical context */ | |
116 | ||
117 | EXTERN struct pending *local_symbols; | |
118 | ||
119 | /* func params local to lexical context */ | |
120 | ||
121 | EXTERN struct pending *param_symbols; | |
122 | ||
123 | /* Stack representing unclosed lexical contexts (that will become | |
124 | blocks, eventually). */ | |
125 | ||
126 | struct context_stack | |
127 | { | |
128 | /* Outer locals at the time we entered */ | |
129 | ||
130 | struct pending *locals; | |
131 | ||
132 | /* Pending func params at the time we entered */ | |
133 | ||
134 | struct pending *params; | |
135 | ||
136 | /* Pointer into blocklist as of entry */ | |
137 | ||
138 | struct pending_block *old_blocks; | |
139 | ||
140 | /* Name of function, if any, defining context */ | |
141 | ||
142 | struct symbol *name; | |
143 | ||
144 | /* PC where this context starts */ | |
145 | ||
146 | CORE_ADDR start_addr; | |
147 | ||
148 | /* Temp slot for exception handling. */ | |
149 | ||
150 | CORE_ADDR end_addr; | |
151 | ||
152 | /* For error-checking matching push/pop */ | |
153 | ||
154 | int depth; | |
155 | ||
156 | }; | |
157 | ||
158 | EXTERN struct context_stack *context_stack; | |
159 | ||
160 | /* Index of first unused entry in context stack. */ | |
161 | ||
162 | EXTERN int context_stack_depth; | |
163 | ||
164 | /* Currently allocated size of context stack. */ | |
165 | ||
166 | EXTERN int context_stack_size; | |
167 | ||
921e78cf JB |
168 | /* Non-zero if the context stack is empty. */ |
169 | #define outermost_context_p() (context_stack_depth == 0) | |
170 | ||
c906108c SS |
171 | /* Nonzero if within a function (so symbols should be local, if |
172 | nothing says specifically). */ | |
173 | ||
174 | EXTERN int within_function; | |
175 | ||
176 | /* List of blocks already made (lexical contexts already closed). | |
177 | This is used at the end to make the blockvector. */ | |
178 | ||
179 | struct pending_block | |
180 | { | |
181 | struct pending_block *next; | |
182 | struct block *block; | |
183 | }; | |
184 | ||
185 | /* Pointer to the head of a linked list of symbol blocks which have | |
186 | already been finalized (lexical contexts already closed) and which | |
187 | are just waiting to be built into a blockvector when finalizing the | |
188 | associated symtab. */ | |
189 | ||
190 | EXTERN struct pending_block *pending_blocks; | |
191 | \f | |
192 | ||
193 | struct subfile_stack | |
194 | { | |
195 | struct subfile_stack *next; | |
196 | char *name; | |
197 | }; | |
198 | ||
199 | EXTERN struct subfile_stack *subfile_stack; | |
200 | ||
201 | #define next_symbol_text(objfile) (*next_symbol_text_func)(objfile) | |
202 | ||
203 | /* Function to invoke get the next symbol. Return the symbol name. */ | |
204 | ||
205 | EXTERN char *(*next_symbol_text_func) (struct objfile *); | |
206 | ||
207 | /* Vector of types defined so far, indexed by their type numbers. | |
208 | Used for both stabs and coff. (In newer sun systems, dbx uses a | |
209 | pair of numbers in parens, as in "(SUBFILENUM,NUMWITHINSUBFILE)". | |
210 | Then these numbers must be translated through the type_translations | |
211 | hash table to get the index into the type vector.) */ | |
212 | ||
213 | EXTERN struct type **type_vector; | |
214 | ||
215 | /* Number of elements allocated for type_vector currently. */ | |
216 | ||
217 | EXTERN int type_vector_length; | |
218 | ||
219 | /* Initial size of type vector. Is realloc'd larger if needed, and | |
220 | realloc'd down to the size actually used, when completed. */ | |
221 | ||
222 | #define INITIAL_TYPE_VECTOR_LENGTH 160 | |
223 | ||
59527da0 JB |
224 | extern void add_free_pendings (struct pending *list); |
225 | ||
c906108c SS |
226 | extern void add_symbol_to_list (struct symbol *symbol, |
227 | struct pending **listhead); | |
228 | ||
229 | extern struct symbol *find_symbol_in_list (struct pending *list, | |
230 | char *name, int length); | |
231 | ||
232 | extern void finish_block (struct symbol *symbol, | |
233 | struct pending **listhead, | |
234 | struct pending_block *old_blocks, | |
235 | CORE_ADDR start, CORE_ADDR end, | |
236 | struct objfile *objfile); | |
237 | ||
bde58177 | 238 | extern void really_free_pendings (void *dummy); |
c906108c SS |
239 | |
240 | extern void start_subfile (char *name, char *dirname); | |
241 | ||
242 | extern void patch_subfile_names (struct subfile *subfile, char *name); | |
243 | ||
244 | extern void push_subfile (void); | |
245 | ||
246 | extern char *pop_subfile (void); | |
247 | ||
248 | extern struct symtab *end_symtab (CORE_ADDR end_addr, | |
249 | struct objfile *objfile, int section); | |
250 | ||
251 | /* Defined in stabsread.c. */ | |
252 | ||
253 | extern void scan_file_globals (struct objfile *objfile); | |
254 | ||
255 | extern void buildsym_new_init (void); | |
256 | ||
257 | extern void buildsym_init (void); | |
258 | ||
259 | extern struct context_stack *push_context (int desc, CORE_ADDR valu); | |
260 | ||
0c5e171a KD |
261 | extern struct context_stack *pop_context (void); |
262 | ||
c906108c SS |
263 | extern void record_line (struct subfile *subfile, int line, CORE_ADDR pc); |
264 | ||
265 | extern void start_symtab (char *name, char *dirname, CORE_ADDR start_addr); | |
266 | ||
267 | extern int hashname (char *name); | |
268 | ||
269 | extern void free_pending_blocks (void); | |
270 | ||
c906108c SS |
271 | /* FIXME: Note that this is used only in buildsym.c and dstread.c, |
272 | which should be fixed to not need direct access to | |
273 | record_pending_block. */ | |
274 | ||
275 | extern void record_pending_block (struct objfile *objfile, | |
276 | struct block *block, | |
277 | struct pending_block *opblock); | |
278 | ||
279 | extern void record_debugformat (char *format); | |
280 | ||
281 | extern void merge_symbol_lists (struct pending **srclist, | |
282 | struct pending **targetlist); | |
283 | ||
99d9066e JB |
284 | /* The macro table for the compilation unit whose symbols we're |
285 | currently reading. All the symtabs for this CU will point to this. */ | |
286 | EXTERN struct macro_table *pending_macros; | |
287 | ||
c906108c SS |
288 | #undef EXTERN |
289 | ||
290 | #endif /* defined (BUILDSYM_H) */ |