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c906108c | 1 | /* Build symbol tables in GDB's internal format. |
197e01b6 | 2 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1996, |
6aba47ca | 3 | 1997, 1998, 1999, 2000, 2002, 2003, 2007 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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b JM |
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 | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #if !defined (BUILDSYM_H) | |
21 | #define BUILDSYM_H 1 | |
22 | ||
da3331ec AC |
23 | struct objfile; |
24 | struct symbol; | |
25 | ||
c906108c SS |
26 | /* This module provides definitions used for creating and adding to |
27 | the symbol table. These routines are called from various symbol- | |
28 | file-reading routines. | |
29 | ||
30 | They originated in dbxread.c of gdb-4.2, and were split out to | |
31 | make xcoffread.c more maintainable by sharing code. | |
32 | ||
33 | Variables declared in this file can be defined by #define-ing the | |
34 | name EXTERN to null. It is used to declare variables that are | |
35 | normally extern, but which get defined in a single module using | |
36 | this technique. */ | |
37 | ||
fe898f56 DC |
38 | struct block; |
39 | ||
c906108c SS |
40 | #ifndef EXTERN |
41 | #define EXTERN extern | |
42 | #endif | |
43 | ||
44 | #define HASHSIZE 127 /* Size of things hashed via | |
45 | hashname() */ | |
46 | ||
47 | /* Name of source file whose symbol data we are now processing. This | |
48 | comes from a symbol of type N_SO. */ | |
49 | ||
50 | EXTERN char *last_source_file; | |
51 | ||
52 | /* Core address of start of text of current source file. This too | |
53 | comes from the N_SO symbol. */ | |
54 | ||
55 | EXTERN CORE_ADDR last_source_start_addr; | |
56 | ||
57 | /* The list of sub-source-files within the current individual | |
58 | compilation. Each file gets its own symtab with its own linetable | |
59 | and associated info, but they all share one blockvector. */ | |
60 | ||
61 | struct subfile | |
62 | { | |
63 | struct subfile *next; | |
64 | char *name; | |
65 | char *dirname; | |
66 | struct linetable *line_vector; | |
67 | int line_vector_length; | |
68 | enum language language; | |
303b6f5d | 69 | char *producer; |
c906108c | 70 | char *debugformat; |
cb1df416 | 71 | struct symtab *symtab; |
c906108c SS |
72 | }; |
73 | ||
c906108c SS |
74 | EXTERN struct subfile *current_subfile; |
75 | ||
76 | /* Global variable which, when set, indicates that we are processing a | |
77 | .o file compiled with gcc */ | |
78 | ||
79 | EXTERN unsigned char processing_gcc_compilation; | |
80 | ||
81 | /* When set, we are processing a .o file compiled by sun acc. This is | |
82 | misnamed; it refers to all stabs-in-elf implementations which use | |
83 | N_UNDF the way Sun does, including Solaris gcc. Hopefully all | |
84 | stabs-in-elf implementations ever invented will choose to be | |
85 | compatible. */ | |
86 | ||
87 | EXTERN unsigned char processing_acc_compilation; | |
88 | ||
c906108c SS |
89 | /* Count symbols as they are processed, for error messages. */ |
90 | ||
91 | EXTERN unsigned int symnum; | |
92 | ||
93 | /* Record the symbols defined for each context in a list. We don't | |
94 | create a struct block for the context until we know how long to | |
95 | make it. */ | |
96 | ||
97 | #define PENDINGSIZE 100 | |
98 | ||
99 | struct pending | |
100 | { | |
101 | struct pending *next; | |
102 | int nsyms; | |
103 | struct symbol *symbol[PENDINGSIZE]; | |
104 | }; | |
105 | ||
106 | /* Here are the three lists that symbols are put on. */ | |
107 | ||
108 | /* static at top level, and types */ | |
109 | ||
110 | EXTERN struct pending *file_symbols; | |
111 | ||
112 | /* global functions and variables */ | |
113 | ||
114 | EXTERN struct pending *global_symbols; | |
115 | ||
116 | /* everything local to lexical context */ | |
117 | ||
118 | EXTERN struct pending *local_symbols; | |
119 | ||
120 | /* func params local to lexical context */ | |
121 | ||
122 | EXTERN struct pending *param_symbols; | |
123 | ||
124 | /* Stack representing unclosed lexical contexts (that will become | |
125 | blocks, eventually). */ | |
126 | ||
127 | struct context_stack | |
128 | { | |
129 | /* Outer locals at the time we entered */ | |
130 | ||
131 | struct pending *locals; | |
132 | ||
133 | /* Pending func params at the time we entered */ | |
134 | ||
135 | struct pending *params; | |
136 | ||
137 | /* Pointer into blocklist as of entry */ | |
138 | ||
139 | struct pending_block *old_blocks; | |
140 | ||
141 | /* Name of function, if any, defining context */ | |
142 | ||
143 | struct symbol *name; | |
144 | ||
145 | /* PC where this context starts */ | |
146 | ||
147 | CORE_ADDR start_addr; | |
148 | ||
149 | /* Temp slot for exception handling. */ | |
150 | ||
151 | CORE_ADDR end_addr; | |
152 | ||
153 | /* For error-checking matching push/pop */ | |
154 | ||
155 | int depth; | |
156 | ||
157 | }; | |
158 | ||
159 | EXTERN struct context_stack *context_stack; | |
160 | ||
161 | /* Index of first unused entry in context stack. */ | |
162 | ||
163 | EXTERN int context_stack_depth; | |
164 | ||
165 | /* Currently allocated size of context stack. */ | |
166 | ||
167 | EXTERN int context_stack_size; | |
168 | ||
921e78cf JB |
169 | /* Non-zero if the context stack is empty. */ |
170 | #define outermost_context_p() (context_stack_depth == 0) | |
171 | ||
c906108c SS |
172 | /* Nonzero if within a function (so symbols should be local, if |
173 | nothing says specifically). */ | |
174 | ||
175 | EXTERN int within_function; | |
176 | ||
177 | /* List of blocks already made (lexical contexts already closed). | |
178 | This is used at the end to make the blockvector. */ | |
179 | ||
180 | struct pending_block | |
181 | { | |
182 | struct pending_block *next; | |
183 | struct block *block; | |
184 | }; | |
185 | ||
186 | /* Pointer to the head of a linked list of symbol blocks which have | |
187 | already been finalized (lexical contexts already closed) and which | |
188 | are just waiting to be built into a blockvector when finalizing the | |
189 | associated symtab. */ | |
190 | ||
191 | EXTERN struct pending_block *pending_blocks; | |
192 | \f | |
193 | ||
194 | struct subfile_stack | |
195 | { | |
196 | struct subfile_stack *next; | |
197 | char *name; | |
198 | }; | |
199 | ||
200 | EXTERN struct subfile_stack *subfile_stack; | |
201 | ||
202 | #define next_symbol_text(objfile) (*next_symbol_text_func)(objfile) | |
203 | ||
204 | /* Function to invoke get the next symbol. Return the symbol name. */ | |
205 | ||
206 | EXTERN char *(*next_symbol_text_func) (struct objfile *); | |
207 | ||
208 | /* Vector of types defined so far, indexed by their type numbers. | |
209 | Used for both stabs and coff. (In newer sun systems, dbx uses a | |
210 | pair of numbers in parens, as in "(SUBFILENUM,NUMWITHINSUBFILE)". | |
211 | Then these numbers must be translated through the type_translations | |
212 | hash table to get the index into the type vector.) */ | |
213 | ||
214 | EXTERN struct type **type_vector; | |
215 | ||
216 | /* Number of elements allocated for type_vector currently. */ | |
217 | ||
218 | EXTERN int type_vector_length; | |
219 | ||
220 | /* Initial size of type vector. Is realloc'd larger if needed, and | |
221 | realloc'd down to the size actually used, when completed. */ | |
222 | ||
223 | #define INITIAL_TYPE_VECTOR_LENGTH 160 | |
224 | ||
59527da0 JB |
225 | extern void add_free_pendings (struct pending *list); |
226 | ||
c906108c SS |
227 | extern void add_symbol_to_list (struct symbol *symbol, |
228 | struct pending **listhead); | |
229 | ||
230 | extern struct symbol *find_symbol_in_list (struct pending *list, | |
231 | char *name, int length); | |
232 | ||
233 | extern void finish_block (struct symbol *symbol, | |
234 | struct pending **listhead, | |
235 | struct pending_block *old_blocks, | |
236 | CORE_ADDR start, CORE_ADDR end, | |
237 | struct objfile *objfile); | |
238 | ||
bde58177 | 239 | extern void really_free_pendings (void *dummy); |
c906108c SS |
240 | |
241 | extern void start_subfile (char *name, char *dirname); | |
242 | ||
243 | extern void patch_subfile_names (struct subfile *subfile, char *name); | |
244 | ||
245 | extern void push_subfile (void); | |
246 | ||
247 | extern char *pop_subfile (void); | |
248 | ||
249 | extern struct symtab *end_symtab (CORE_ADDR end_addr, | |
250 | struct objfile *objfile, int section); | |
251 | ||
252 | /* Defined in stabsread.c. */ | |
253 | ||
254 | extern void scan_file_globals (struct objfile *objfile); | |
255 | ||
256 | extern void buildsym_new_init (void); | |
257 | ||
258 | extern void buildsym_init (void); | |
259 | ||
260 | extern struct context_stack *push_context (int desc, CORE_ADDR valu); | |
261 | ||
0c5e171a KD |
262 | extern struct context_stack *pop_context (void); |
263 | ||
c906108c SS |
264 | extern void record_line (struct subfile *subfile, int line, CORE_ADDR pc); |
265 | ||
266 | extern void start_symtab (char *name, char *dirname, CORE_ADDR start_addr); | |
267 | ||
268 | extern int hashname (char *name); | |
269 | ||
270 | extern void free_pending_blocks (void); | |
271 | ||
c906108c SS |
272 | /* FIXME: Note that this is used only in buildsym.c and dstread.c, |
273 | which should be fixed to not need direct access to | |
274 | record_pending_block. */ | |
275 | ||
276 | extern void record_pending_block (struct objfile *objfile, | |
277 | struct block *block, | |
278 | struct pending_block *opblock); | |
279 | ||
280 | extern void record_debugformat (char *format); | |
281 | ||
303b6f5d DJ |
282 | extern void record_producer (const char *producer); |
283 | ||
c906108c SS |
284 | extern void merge_symbol_lists (struct pending **srclist, |
285 | struct pending **targetlist); | |
286 | ||
99d9066e JB |
287 | /* The macro table for the compilation unit whose symbols we're |
288 | currently reading. All the symtabs for this CU will point to this. */ | |
289 | EXTERN struct macro_table *pending_macros; | |
290 | ||
c906108c SS |
291 | #undef EXTERN |
292 | ||
293 | #endif /* defined (BUILDSYM_H) */ |