Commit | Line | Data |
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c906108c | 1 | /* Build symbol tables in GDB's internal format. |
32d0add0 | 2 | Copyright (C) 1986-2015 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b JM |
4 | This file is part of GDB. |
5 | ||
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 | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b JM |
9 | (at your option) any later version. |
10 | ||
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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
18 | |
19 | #if !defined (BUILDSYM_H) | |
20 | #define BUILDSYM_H 1 | |
21 | ||
da3331ec AC |
22 | struct objfile; |
23 | struct symbol; | |
801e3a5b | 24 | struct addrmap; |
43f3e411 | 25 | struct compunit_symtab; |
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 | 48 | |
c906108c | 49 | /* Core address of start of text of current source file. This too |
92b5c263 DE |
50 | comes from the N_SO symbol. For Dwarf it typically comes from the |
51 | DW_AT_low_pc attribute of a DW_TAG_compile_unit DIE. */ | |
c906108c SS |
52 | |
53 | EXTERN CORE_ADDR last_source_start_addr; | |
54 | ||
55 | /* The list of sub-source-files within the current individual | |
56 | compilation. Each file gets its own symtab with its own linetable | |
57 | and associated info, but they all share one blockvector. */ | |
58 | ||
59 | struct subfile | |
43f3e411 DE |
60 | { |
61 | struct subfile *next; | |
62 | /* Space for this is malloc'd. */ | |
63 | char *name; | |
64 | /* Space for this is malloc'd. */ | |
65 | struct linetable *line_vector; | |
66 | int line_vector_length; | |
67 | /* The "containing" compunit. */ | |
68 | struct buildsym_compunit *buildsym_compunit; | |
69 | enum language language; | |
70 | struct symtab *symtab; | |
71 | }; | |
c906108c | 72 | |
c906108c SS |
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 | ||
27aa8d6a SW |
119 | /* "using" directives local to lexical context. */ |
120 | ||
22cee43f PMR |
121 | EXTERN struct using_direct *local_using_directives; |
122 | ||
123 | /* global "using" directives. */ | |
124 | ||
125 | EXTERN struct using_direct *global_using_directives; | |
27aa8d6a | 126 | |
c906108c SS |
127 | /* Stack representing unclosed lexical contexts (that will become |
128 | blocks, eventually). */ | |
129 | ||
130 | struct context_stack | |
131 | { | |
132 | /* Outer locals at the time we entered */ | |
133 | ||
134 | struct pending *locals; | |
135 | ||
27aa8d6a SW |
136 | /* Pending using directives at the time we entered. */ |
137 | ||
22cee43f | 138 | struct using_direct *local_using_directives; |
27aa8d6a | 139 | |
c906108c SS |
140 | /* Pointer into blocklist as of entry */ |
141 | ||
142 | struct pending_block *old_blocks; | |
143 | ||
144 | /* Name of function, if any, defining context */ | |
145 | ||
146 | struct symbol *name; | |
147 | ||
148 | /* PC where this context starts */ | |
149 | ||
150 | CORE_ADDR start_addr; | |
151 | ||
0e2de366 | 152 | /* Temp slot for exception handling. */ |
c906108c SS |
153 | |
154 | CORE_ADDR end_addr; | |
155 | ||
156 | /* For error-checking matching push/pop */ | |
157 | ||
158 | int depth; | |
159 | ||
160 | }; | |
161 | ||
162 | EXTERN struct context_stack *context_stack; | |
163 | ||
164 | /* Index of first unused entry in context stack. */ | |
165 | ||
166 | EXTERN int context_stack_depth; | |
167 | ||
168 | /* Currently allocated size of context stack. */ | |
169 | ||
170 | EXTERN int context_stack_size; | |
171 | ||
921e78cf JB |
172 | /* Non-zero if the context stack is empty. */ |
173 | #define outermost_context_p() (context_stack_depth == 0) | |
174 | ||
c906108c SS |
175 | /* Nonzero if within a function (so symbols should be local, if |
176 | nothing says specifically). */ | |
177 | ||
178 | EXTERN int within_function; | |
179 | ||
252a6764 DE |
180 | /* The type of the record_line function. */ |
181 | typedef void (record_line_ftype) (struct subfile *subfile, int line, | |
182 | CORE_ADDR pc); | |
183 | ||
c906108c SS |
184 | \f |
185 | ||
c906108c SS |
186 | #define next_symbol_text(objfile) (*next_symbol_text_func)(objfile) |
187 | ||
0e2de366 | 188 | /* Function to invoke get the next symbol. Return the symbol name. */ |
c906108c SS |
189 | |
190 | EXTERN char *(*next_symbol_text_func) (struct objfile *); | |
191 | ||
c906108c SS |
192 | extern void add_symbol_to_list (struct symbol *symbol, |
193 | struct pending **listhead); | |
194 | ||
195 | extern struct symbol *find_symbol_in_list (struct pending *list, | |
196 | char *name, int length); | |
197 | ||
801e3a5b JB |
198 | extern struct block *finish_block (struct symbol *symbol, |
199 | struct pending **listhead, | |
200 | struct pending_block *old_blocks, | |
4d663531 | 201 | CORE_ADDR start, CORE_ADDR end); |
801e3a5b JB |
202 | |
203 | extern void record_block_range (struct block *, | |
204 | CORE_ADDR start, CORE_ADDR end_inclusive); | |
c906108c | 205 | |
bde58177 | 206 | extern void really_free_pendings (void *dummy); |
c906108c | 207 | |
4d663531 | 208 | extern void start_subfile (const char *name); |
c906108c SS |
209 | |
210 | extern void patch_subfile_names (struct subfile *subfile, char *name); | |
211 | ||
212 | extern void push_subfile (void); | |
213 | ||
214 | extern char *pop_subfile (void); | |
215 | ||
4359dff1 | 216 | extern struct block *end_symtab_get_static_block (CORE_ADDR end_addr, |
36586728 TT |
217 | int expandable, |
218 | int required); | |
4359dff1 | 219 | |
43f3e411 DE |
220 | extern struct compunit_symtab * |
221 | end_symtab_from_static_block (struct block *static_block, | |
222 | int section, int expandable); | |
4359dff1 | 223 | |
43f3e411 | 224 | extern struct compunit_symtab *end_symtab (CORE_ADDR end_addr, int section); |
c906108c | 225 | |
43f3e411 DE |
226 | extern struct compunit_symtab *end_expandable_symtab (CORE_ADDR end_addr, |
227 | int section); | |
6d30eef8 | 228 | |
0ab9ce85 | 229 | extern void augment_type_symtab (void); |
6d30eef8 | 230 | |
c906108c SS |
231 | /* Defined in stabsread.c. */ |
232 | ||
233 | extern void scan_file_globals (struct objfile *objfile); | |
234 | ||
235 | extern void buildsym_new_init (void); | |
236 | ||
237 | extern void buildsym_init (void); | |
238 | ||
239 | extern struct context_stack *push_context (int desc, CORE_ADDR valu); | |
240 | ||
0c5e171a KD |
241 | extern struct context_stack *pop_context (void); |
242 | ||
252a6764 | 243 | extern record_line_ftype record_line; |
c906108c | 244 | |
43f3e411 DE |
245 | extern struct compunit_symtab *start_symtab (struct objfile *objfile, |
246 | const char *name, | |
247 | const char *comp_dir, | |
248 | CORE_ADDR start_addr); | |
c906108c | 249 | |
0ab9ce85 DE |
250 | extern void restart_symtab (struct compunit_symtab *cust, |
251 | const char *name, CORE_ADDR start_addr); | |
6d30eef8 | 252 | |
0d5cff50 | 253 | extern int hashname (const char *name); |
c906108c SS |
254 | |
255 | extern void free_pending_blocks (void); | |
256 | ||
554d387d TT |
257 | /* Record the name of the debug format in the current pending symbol |
258 | table. FORMAT must be a string with a lifetime at least as long as | |
259 | the symtab's objfile. */ | |
260 | ||
261 | extern void record_debugformat (const char *format); | |
262 | ||
263 | /* Record the name of the debuginfo producer (usually the compiler) in | |
264 | the current pending symbol table. PRODUCER must be a string with a | |
265 | lifetime at least as long as the symtab's objfile. */ | |
c906108c | 266 | |
303b6f5d DJ |
267 | extern void record_producer (const char *producer); |
268 | ||
c906108c SS |
269 | extern void merge_symbol_lists (struct pending **srclist, |
270 | struct pending **targetlist); | |
271 | ||
46212e0b TT |
272 | /* Set the name of the last source file. NAME is copied by this |
273 | function. */ | |
274 | ||
275 | extern void set_last_source_file (const char *name); | |
276 | ||
277 | /* Fetch the name of the last source file. */ | |
278 | ||
279 | extern const char *get_last_source_file (void); | |
280 | ||
43f3e411 DE |
281 | /* Return the compunit symtab object. |
282 | It is only valid to call this between calls to start_symtab and the | |
283 | end_symtab* functions. */ | |
284 | ||
285 | extern struct compunit_symtab *buildsym_compunit_symtab (void); | |
286 | ||
287 | /* Return the macro table. | |
288 | Initialize it if this is the first use. | |
289 | It is only valid to call this between calls to start_symtab and the | |
290 | end_symtab* functions. */ | |
fc474241 | 291 | |
43f3e411 | 292 | extern struct macro_table *get_macro_table (void); |
99d9066e | 293 | |
c906108c SS |
294 | #undef EXTERN |
295 | ||
296 | #endif /* defined (BUILDSYM_H) */ |