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c906108c | 1 | /* Include file for stabs debugging format support functions. |
e2882c85 | 2 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
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 | 9 | (at your option) any later version. |
c906108c | 10 | |
c5aa993b JM |
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. | |
c906108c | 15 | |
c5aa993b | 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 | 18 | |
da3331ec | 19 | struct objfile; |
5ffa0793 | 20 | enum language; |
da3331ec | 21 | |
c906108c SS |
22 | /* Definitions, prototypes, etc for stabs debugging format support |
23 | functions. | |
24 | ||
25 | Variables declared in this file can be defined by #define-ing | |
26 | the name EXTERN to null. It is used to declare variables that | |
27 | are normally extern, but which get defined in a single module | |
28 | using this technique. */ | |
29 | ||
30 | #ifndef EXTERN | |
31 | #define EXTERN extern | |
32 | #endif | |
33 | ||
2150c3ef TT |
34 | #define HASHSIZE 127 /* Size of things hashed via |
35 | hashname(). */ | |
36 | ||
37 | /* Compute a small integer hash code for the given name. */ | |
38 | ||
39 | extern int hashname (const char *name); | |
40 | ||
41 | /* Count symbols as they are processed, for error messages. */ | |
42 | ||
43 | EXTERN unsigned int symnum; | |
44 | ||
45 | #define next_symbol_text(objfile) (*next_symbol_text_func)(objfile) | |
46 | ||
47 | /* Function to invoke get the next symbol. Return the symbol name. */ | |
48 | ||
49 | EXTERN const char *(*next_symbol_text_func) (struct objfile *); | |
50 | ||
6b84eeb2 TT |
51 | /* Global variable which, when set, indicates that we are processing a |
52 | .o file compiled with gcc */ | |
53 | ||
54 | EXTERN unsigned char processing_gcc_compilation; | |
55 | ||
5985ac61 TT |
56 | /* Nonzero if within a function (so symbols should be local, if |
57 | nothing says specifically). */ | |
58 | ||
59 | EXTERN int within_function; | |
60 | ||
c906108c SS |
61 | /* Hash table of global symbols whose values are not known yet. |
62 | They are chained thru the SYMBOL_VALUE_CHAIN, since we don't | |
63 | have the correct data for that slot yet. | |
64 | ||
65 | The use of the LOC_BLOCK code in this chain is nonstandard-- | |
66 | it refers to a FORTRAN common block rather than the usual meaning, and | |
67 | the such LOC_BLOCK symbols use their fields in nonstandard ways. */ | |
68 | ||
69 | EXTERN struct symbol *global_sym_chain[HASHSIZE]; | |
70 | ||
a121b7c1 | 71 | extern void common_block_start (const char *, struct objfile *); |
a14ed312 | 72 | extern void common_block_end (struct objfile *); |
c906108c SS |
73 | |
74 | /* Kludge for xcoffread.c */ | |
75 | ||
76 | struct pending_stabs | |
c5aa993b JM |
77 | { |
78 | int count; | |
79 | int length; | |
80 | char *stab[1]; | |
81 | }; | |
c906108c SS |
82 | |
83 | EXTERN struct pending_stabs *global_stabs; | |
84 | ||
85 | /* The type code that process_one_symbol saw on its previous invocation. | |
c378eb4e | 86 | Used to detect pairs of N_SO symbols. */ |
c906108c SS |
87 | |
88 | EXTERN int previous_stab_code; | |
89 | \f | |
c378eb4e | 90 | /* Support for Sun changes to dbx symbol format. */ |
c906108c SS |
91 | |
92 | /* For each identified header file, we have a table of types defined | |
93 | in that header file. | |
94 | ||
95 | header_files maps header file names to their type tables. | |
96 | It is a vector of n_header_files elements. | |
97 | Each element describes one header file. | |
98 | It contains a vector of types. | |
99 | ||
100 | Sometimes it can happen that the same header file produces | |
101 | different results when included in different places. | |
102 | This can result from conditionals or from different | |
103 | things done before including the file. | |
104 | When this happens, there are multiple entries for the file in this table, | |
105 | one entry for each distinct set of results. | |
106 | The entries are distinguished by the INSTANCE field. | |
107 | The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is | |
108 | used to match header-file references to their corresponding data. */ | |
109 | ||
110 | struct header_file | |
c5aa993b | 111 | { |
c906108c | 112 | |
c5aa993b | 113 | /* Name of header file */ |
c906108c | 114 | |
c5aa993b | 115 | char *name; |
c906108c | 116 | |
3e43a32a MS |
117 | /* Numeric code distinguishing instances of one header file that |
118 | produced different results when included. It comes from the | |
c378eb4e | 119 | N_BINCL or N_EXCL. */ |
c906108c | 120 | |
c5aa993b | 121 | int instance; |
c906108c | 122 | |
c5aa993b | 123 | /* Pointer to vector of types */ |
c906108c | 124 | |
c5aa993b | 125 | struct type **vector; |
c906108c | 126 | |
c5aa993b | 127 | /* Allocated length (# elts) of that vector */ |
c906108c | 128 | |
c5aa993b JM |
129 | int length; |
130 | ||
131 | }; | |
c906108c | 132 | |
c378eb4e | 133 | /* The table of header_files of this OBJFILE. */ |
c906108c SS |
134 | #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files) |
135 | ||
c378eb4e | 136 | /* The actual length of HEADER_FILES. */ |
c906108c SS |
137 | #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files) |
138 | ||
c378eb4e | 139 | /* The allocated lengh of HEADER_FILES. */ |
c906108c SS |
140 | #define N_ALLOCATED_HEADER_FILES(OBJFILE) \ |
141 | (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files) | |
142 | ||
143 | /* Within each object file, various header files are assigned numbers. | |
144 | A type is defined or referred to with a pair of numbers | |
145 | (FILENUM,TYPENUM) where FILENUM is the number of the header file | |
146 | and TYPENUM is the number within that header file. | |
147 | TYPENUM is the index within the vector of types for that header file. | |
148 | ||
149 | FILENUM == 0 is special; it refers to the main source of the object file, | |
150 | and not to any header file. FILENUM != 1 is interpreted by looking it up | |
151 | in the following table, which contains indices in header_files. */ | |
152 | ||
153 | EXTERN int *this_object_header_files; | |
154 | ||
155 | EXTERN int n_this_object_header_files; | |
156 | ||
157 | EXTERN int n_allocated_this_object_header_files; | |
158 | ||
0a0edcd5 | 159 | extern void cleanup_undefined_stabs_types (struct objfile *); |
c906108c | 160 | |
a14ed312 | 161 | extern long read_number (char **, int); |
c906108c | 162 | |
a121b7c1 | 163 | extern struct symbol *define_symbol (CORE_ADDR, const char *, int, int, |
a14ed312 | 164 | struct objfile *); |
c906108c | 165 | |
a14ed312 | 166 | extern void stabsread_init (void); |
c906108c | 167 | |
a14ed312 | 168 | extern void stabsread_new_init (void); |
c906108c | 169 | |
a14ed312 | 170 | extern void start_stabs (void); |
c906108c | 171 | |
a14ed312 | 172 | extern void end_stabs (void); |
c906108c | 173 | |
a14ed312 | 174 | extern void finish_global_stabs (struct objfile *objfile); |
c906108c | 175 | \f |
c906108c SS |
176 | /* COFF files can have multiple .stab sections, if they are linked |
177 | using --split-by-reloc. This linked list is used to pass the | |
178 | information into the functions in dbxread.c. */ | |
179 | struct stab_section_list | |
c5aa993b JM |
180 | { |
181 | /* Next in list. */ | |
182 | struct stab_section_list *next; | |
c906108c | 183 | |
c5aa993b JM |
184 | /* Stab section. */ |
185 | asection *section; | |
186 | }; | |
c906108c SS |
187 | \f |
188 | /* Functions exported by dbxread.c. These are not in stabsread.c because | |
189 | they are only used by some stabs readers. */ | |
190 | ||
8763cede DE |
191 | extern struct partial_symtab *dbx_end_psymtab |
192 | (struct objfile *objfile, struct partial_symtab *pst, | |
193 | const char **include_list, int num_includes, | |
194 | int capping_symbol_offset, CORE_ADDR capping_text, | |
195 | struct partial_symtab **dependency_list, int number_dependencies, | |
196 | int textlow_not_set); | |
c906108c | 197 | |
a121b7c1 | 198 | extern void process_one_symbol (int, int, CORE_ADDR, const char *, |
3189cb12 | 199 | const struct section_offsets *, |
5ffa0793 | 200 | struct objfile *, enum language); |
5ae5f592 AC |
201 | |
202 | extern void elfstab_build_psymtabs (struct objfile *objfile, | |
086df311 | 203 | asection *stabsect, |
5ae5f592 AC |
204 | file_ptr stabstroffset, |
205 | unsigned int stabstrsize); | |
c906108c SS |
206 | |
207 | extern void coffstab_build_psymtabs | |
a14ed312 | 208 | (struct objfile *objfile, |
a14ed312 KB |
209 | CORE_ADDR textaddr, unsigned int textsize, |
210 | struct stab_section_list *stabs, | |
211 | file_ptr stabstroffset, unsigned int stabstrsize); | |
c906108c | 212 | |
c67a9c90 TG |
213 | extern void stabsect_build_psymtabs (struct objfile *objfile, char *stab_name, |
214 | char *stabstr_name, char *text_name); | |
c906108c | 215 | |
a121b7c1 | 216 | extern int symbol_reference_defined (const char **); |
c906108c | 217 | |
a121b7c1 | 218 | extern void ref_add (int, struct symbol *, const char *, CORE_ADDR); |
c906108c | 219 | |
a14ed312 | 220 | extern struct symbol *ref_search (int); |
c906108c | 221 | |
d3d55eeb EZ |
222 | extern void free_header_files (void); |
223 | ||
224 | extern void init_header_files (void); | |
225 | ||
77d6f1aa TT |
226 | /* Scan through all of the global symbols defined in the object file, |
227 | assigning values to the debugging symbols that need to be assigned | |
228 | to. Get these symbols from the minimal symbol table. */ | |
229 | ||
230 | extern void scan_file_globals (struct objfile *objfile); | |
231 | ||
c906108c | 232 | #undef EXTERN |