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c906108c | 1 | /* Build symbol tables in GDB's internal format. |
0b302171 JB |
2 | Copyright (C) 1986-1993, 1995-2000, 2002-2003, 2007-2012 Free |
3 | 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; | |
801e3a5b | 25 | struct addrmap; |
da3331ec | 26 | |
c906108c SS |
27 | /* This module provides definitions used for creating and adding to |
28 | the symbol table. These routines are called from various symbol- | |
29 | file-reading routines. | |
30 | ||
31 | They originated in dbxread.c of gdb-4.2, and were split out to | |
32 | make xcoffread.c more maintainable by sharing code. | |
33 | ||
34 | Variables declared in this file can be defined by #define-ing the | |
35 | name EXTERN to null. It is used to declare variables that are | |
36 | normally extern, but which get defined in a single module using | |
37 | this technique. */ | |
38 | ||
fe898f56 | 39 | struct block; |
93eed41f | 40 | struct pending_block; |
fe898f56 | 41 | |
c906108c SS |
42 | #ifndef EXTERN |
43 | #define EXTERN extern | |
44 | #endif | |
45 | ||
46 | #define HASHSIZE 127 /* Size of things hashed via | |
0e2de366 | 47 | hashname(). */ |
c906108c SS |
48 | |
49 | /* Name of source file whose symbol data we are now processing. This | |
0e2de366 MS |
50 | comes from a symbol of type N_SO for stabs. For Dwarf it comes |
51 | from the DW_AT_name attribute of a DW_TAG_compile_unit DIE. */ | |
c906108c SS |
52 | |
53 | EXTERN char *last_source_file; | |
54 | ||
55 | /* Core address of start of text of current source file. This too | |
92b5c263 DE |
56 | comes from the N_SO symbol. For Dwarf it typically comes from the |
57 | DW_AT_low_pc attribute of a DW_TAG_compile_unit DIE. */ | |
c906108c SS |
58 | |
59 | EXTERN CORE_ADDR last_source_start_addr; | |
60 | ||
61 | /* The list of sub-source-files within the current individual | |
62 | compilation. Each file gets its own symtab with its own linetable | |
63 | and associated info, but they all share one blockvector. */ | |
64 | ||
65 | struct subfile | |
66 | { | |
67 | struct subfile *next; | |
68 | char *name; | |
69 | char *dirname; | |
70 | struct linetable *line_vector; | |
71 | int line_vector_length; | |
72 | enum language language; | |
554d387d TT |
73 | const char *producer; |
74 | const char *debugformat; | |
cb1df416 | 75 | struct symtab *symtab; |
c906108c SS |
76 | }; |
77 | ||
c906108c SS |
78 | EXTERN struct subfile *current_subfile; |
79 | ||
80 | /* Global variable which, when set, indicates that we are processing a | |
81 | .o file compiled with gcc */ | |
82 | ||
83 | EXTERN unsigned char processing_gcc_compilation; | |
84 | ||
85 | /* When set, we are processing a .o file compiled by sun acc. This is | |
86 | misnamed; it refers to all stabs-in-elf implementations which use | |
87 | N_UNDF the way Sun does, including Solaris gcc. Hopefully all | |
88 | stabs-in-elf implementations ever invented will choose to be | |
89 | compatible. */ | |
90 | ||
91 | EXTERN unsigned char processing_acc_compilation; | |
92 | ||
c906108c SS |
93 | /* Count symbols as they are processed, for error messages. */ |
94 | ||
95 | EXTERN unsigned int symnum; | |
96 | ||
97 | /* Record the symbols defined for each context in a list. We don't | |
98 | create a struct block for the context until we know how long to | |
99 | make it. */ | |
100 | ||
101 | #define PENDINGSIZE 100 | |
102 | ||
103 | struct pending | |
104 | { | |
105 | struct pending *next; | |
106 | int nsyms; | |
107 | struct symbol *symbol[PENDINGSIZE]; | |
108 | }; | |
109 | ||
110 | /* Here are the three lists that symbols are put on. */ | |
111 | ||
112 | /* static at top level, and types */ | |
113 | ||
114 | EXTERN struct pending *file_symbols; | |
115 | ||
116 | /* global functions and variables */ | |
117 | ||
118 | EXTERN struct pending *global_symbols; | |
119 | ||
120 | /* everything local to lexical context */ | |
121 | ||
122 | EXTERN struct pending *local_symbols; | |
123 | ||
27aa8d6a SW |
124 | /* "using" directives local to lexical context. */ |
125 | ||
126 | EXTERN struct using_direct *using_directives; | |
127 | ||
c906108c SS |
128 | /* Stack representing unclosed lexical contexts (that will become |
129 | blocks, eventually). */ | |
130 | ||
131 | struct context_stack | |
132 | { | |
133 | /* Outer locals at the time we entered */ | |
134 | ||
135 | struct pending *locals; | |
136 | ||
27aa8d6a SW |
137 | /* Pending using directives at the time we entered. */ |
138 | ||
139 | struct using_direct *using_directives; | |
140 | ||
c906108c SS |
141 | /* Pointer into blocklist as of entry */ |
142 | ||
143 | struct pending_block *old_blocks; | |
144 | ||
145 | /* Name of function, if any, defining context */ | |
146 | ||
147 | struct symbol *name; | |
148 | ||
149 | /* PC where this context starts */ | |
150 | ||
151 | CORE_ADDR start_addr; | |
152 | ||
0e2de366 | 153 | /* Temp slot for exception handling. */ |
c906108c SS |
154 | |
155 | CORE_ADDR end_addr; | |
156 | ||
157 | /* For error-checking matching push/pop */ | |
158 | ||
159 | int depth; | |
160 | ||
161 | }; | |
162 | ||
163 | EXTERN struct context_stack *context_stack; | |
164 | ||
165 | /* Index of first unused entry in context stack. */ | |
166 | ||
167 | EXTERN int context_stack_depth; | |
168 | ||
169 | /* Currently allocated size of context stack. */ | |
170 | ||
171 | EXTERN int context_stack_size; | |
172 | ||
921e78cf JB |
173 | /* Non-zero if the context stack is empty. */ |
174 | #define outermost_context_p() (context_stack_depth == 0) | |
175 | ||
c906108c SS |
176 | /* Nonzero if within a function (so symbols should be local, if |
177 | nothing says specifically). */ | |
178 | ||
179 | EXTERN int within_function; | |
180 | ||
c906108c SS |
181 | \f |
182 | ||
183 | struct subfile_stack | |
184 | { | |
185 | struct subfile_stack *next; | |
186 | char *name; | |
187 | }; | |
188 | ||
189 | EXTERN struct subfile_stack *subfile_stack; | |
190 | ||
191 | #define next_symbol_text(objfile) (*next_symbol_text_func)(objfile) | |
192 | ||
0e2de366 | 193 | /* Function to invoke get the next symbol. Return the symbol name. */ |
c906108c SS |
194 | |
195 | EXTERN char *(*next_symbol_text_func) (struct objfile *); | |
196 | ||
197 | /* Vector of types defined so far, indexed by their type numbers. | |
198 | Used for both stabs and coff. (In newer sun systems, dbx uses a | |
199 | pair of numbers in parens, as in "(SUBFILENUM,NUMWITHINSUBFILE)". | |
200 | Then these numbers must be translated through the type_translations | |
201 | hash table to get the index into the type vector.) */ | |
202 | ||
203 | EXTERN struct type **type_vector; | |
204 | ||
205 | /* Number of elements allocated for type_vector currently. */ | |
206 | ||
207 | EXTERN int type_vector_length; | |
208 | ||
209 | /* Initial size of type vector. Is realloc'd larger if needed, and | |
210 | realloc'd down to the size actually used, when completed. */ | |
211 | ||
212 | #define INITIAL_TYPE_VECTOR_LENGTH 160 | |
213 | ||
214 | extern void add_symbol_to_list (struct symbol *symbol, | |
215 | struct pending **listhead); | |
216 | ||
217 | extern struct symbol *find_symbol_in_list (struct pending *list, | |
218 | char *name, int length); | |
219 | ||
801e3a5b JB |
220 | extern struct block *finish_block (struct symbol *symbol, |
221 | struct pending **listhead, | |
222 | struct pending_block *old_blocks, | |
223 | CORE_ADDR start, CORE_ADDR end, | |
224 | struct objfile *objfile); | |
225 | ||
226 | extern void record_block_range (struct block *, | |
227 | CORE_ADDR start, CORE_ADDR end_inclusive); | |
c906108c | 228 | |
bde58177 | 229 | extern void really_free_pendings (void *dummy); |
c906108c | 230 | |
72b9f47f | 231 | extern void start_subfile (const char *name, const char *dirname); |
c906108c SS |
232 | |
233 | extern void patch_subfile_names (struct subfile *subfile, char *name); | |
234 | ||
235 | extern void push_subfile (void); | |
236 | ||
237 | extern char *pop_subfile (void); | |
238 | ||
4359dff1 JK |
239 | extern struct block *end_symtab_get_static_block (CORE_ADDR end_addr, |
240 | struct objfile *objfile, | |
36586728 TT |
241 | int expandable, |
242 | int required); | |
4359dff1 JK |
243 | |
244 | extern struct symtab *end_symtab_from_static_block (struct block *static_block, | |
245 | struct objfile *objfile, | |
246 | int section, | |
247 | int expandable); | |
248 | ||
c906108c SS |
249 | extern struct symtab *end_symtab (CORE_ADDR end_addr, |
250 | struct objfile *objfile, int section); | |
251 | ||
6d30eef8 DE |
252 | extern struct symtab *end_expandable_symtab (CORE_ADDR end_addr, |
253 | struct objfile *objfile, | |
254 | int section); | |
255 | ||
256 | extern void augment_type_symtab (struct objfile *objfile, | |
257 | struct symtab *primary_symtab); | |
258 | ||
c906108c SS |
259 | /* Defined in stabsread.c. */ |
260 | ||
261 | extern void scan_file_globals (struct objfile *objfile); | |
262 | ||
263 | extern void buildsym_new_init (void); | |
264 | ||
265 | extern void buildsym_init (void); | |
266 | ||
267 | extern struct context_stack *push_context (int desc, CORE_ADDR valu); | |
268 | ||
0c5e171a KD |
269 | extern struct context_stack *pop_context (void); |
270 | ||
c906108c SS |
271 | extern void record_line (struct subfile *subfile, int line, CORE_ADDR pc); |
272 | ||
273 | extern void start_symtab (char *name, char *dirname, CORE_ADDR start_addr); | |
274 | ||
6d30eef8 DE |
275 | extern void restart_symtab (CORE_ADDR start_addr); |
276 | ||
0d5cff50 | 277 | extern int hashname (const char *name); |
c906108c SS |
278 | |
279 | extern void free_pending_blocks (void); | |
280 | ||
554d387d TT |
281 | /* Record the name of the debug format in the current pending symbol |
282 | table. FORMAT must be a string with a lifetime at least as long as | |
283 | the symtab's objfile. */ | |
284 | ||
285 | extern void record_debugformat (const char *format); | |
286 | ||
287 | /* Record the name of the debuginfo producer (usually the compiler) in | |
288 | the current pending symbol table. PRODUCER must be a string with a | |
289 | lifetime at least as long as the symtab's objfile. */ | |
c906108c | 290 | |
303b6f5d DJ |
291 | extern void record_producer (const char *producer); |
292 | ||
c906108c SS |
293 | extern void merge_symbol_lists (struct pending **srclist, |
294 | struct pending **targetlist); | |
295 | ||
99d9066e | 296 | /* The macro table for the compilation unit whose symbols we're |
0e2de366 MS |
297 | currently reading. All the symtabs for this CU will point to |
298 | this. */ | |
99d9066e JB |
299 | EXTERN struct macro_table *pending_macros; |
300 | ||
c906108c SS |
301 | #undef EXTERN |
302 | ||
303 | #endif /* defined (BUILDSYM_H) */ |