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c906108c | 1 | /* Include file for stabs debugging format support functions. |
42a4f53d | 2 | Copyright (C) 1986-2019 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 | 22 | /* Definitions, prototypes, etc for stabs debugging format support |
d65d5705 | 23 | functions. */ |
c906108c | 24 | |
2150c3ef TT |
25 | #define HASHSIZE 127 /* Size of things hashed via |
26 | hashname(). */ | |
27 | ||
28 | /* Compute a small integer hash code for the given name. */ | |
29 | ||
30 | extern int hashname (const char *name); | |
31 | ||
32 | /* Count symbols as they are processed, for error messages. */ | |
33 | ||
d65d5705 | 34 | extern unsigned int symnum; |
2150c3ef TT |
35 | |
36 | #define next_symbol_text(objfile) (*next_symbol_text_func)(objfile) | |
37 | ||
38 | /* Function to invoke get the next symbol. Return the symbol name. */ | |
39 | ||
d65d5705 | 40 | extern const char *(*next_symbol_text_func) (struct objfile *); |
2150c3ef | 41 | |
6b84eeb2 TT |
42 | /* Global variable which, when set, indicates that we are processing a |
43 | .o file compiled with gcc */ | |
44 | ||
d65d5705 | 45 | extern unsigned char processing_gcc_compilation; |
6b84eeb2 | 46 | |
5985ac61 TT |
47 | /* Nonzero if within a function (so symbols should be local, if |
48 | nothing says specifically). */ | |
49 | ||
d65d5705 | 50 | extern int within_function; |
5985ac61 | 51 | |
c906108c SS |
52 | /* Hash table of global symbols whose values are not known yet. |
53 | They are chained thru the SYMBOL_VALUE_CHAIN, since we don't | |
54 | have the correct data for that slot yet. | |
55 | ||
56 | The use of the LOC_BLOCK code in this chain is nonstandard-- | |
57 | it refers to a FORTRAN common block rather than the usual meaning, and | |
58 | the such LOC_BLOCK symbols use their fields in nonstandard ways. */ | |
59 | ||
d65d5705 | 60 | extern struct symbol *global_sym_chain[HASHSIZE]; |
c906108c | 61 | |
a121b7c1 | 62 | extern void common_block_start (const char *, struct objfile *); |
a14ed312 | 63 | extern void common_block_end (struct objfile *); |
c906108c SS |
64 | |
65 | /* Kludge for xcoffread.c */ | |
66 | ||
67 | struct pending_stabs | |
c5aa993b JM |
68 | { |
69 | int count; | |
70 | int length; | |
71 | char *stab[1]; | |
72 | }; | |
c906108c | 73 | |
d65d5705 | 74 | extern struct pending_stabs *global_stabs; |
c906108c SS |
75 | |
76 | /* The type code that process_one_symbol saw on its previous invocation. | |
c378eb4e | 77 | Used to detect pairs of N_SO symbols. */ |
c906108c | 78 | |
d65d5705 | 79 | extern int previous_stab_code; |
c906108c | 80 | \f |
c378eb4e | 81 | /* Support for Sun changes to dbx symbol format. */ |
c906108c SS |
82 | |
83 | /* For each identified header file, we have a table of types defined | |
84 | in that header file. | |
85 | ||
86 | header_files maps header file names to their type tables. | |
87 | It is a vector of n_header_files elements. | |
88 | Each element describes one header file. | |
89 | It contains a vector of types. | |
90 | ||
91 | Sometimes it can happen that the same header file produces | |
92 | different results when included in different places. | |
93 | This can result from conditionals or from different | |
94 | things done before including the file. | |
95 | When this happens, there are multiple entries for the file in this table, | |
96 | one entry for each distinct set of results. | |
97 | The entries are distinguished by the INSTANCE field. | |
98 | The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is | |
99 | used to match header-file references to their corresponding data. */ | |
100 | ||
101 | struct header_file | |
c5aa993b | 102 | { |
c906108c | 103 | |
c5aa993b | 104 | /* Name of header file */ |
c906108c | 105 | |
c5aa993b | 106 | char *name; |
c906108c | 107 | |
3e43a32a MS |
108 | /* Numeric code distinguishing instances of one header file that |
109 | produced different results when included. It comes from the | |
c378eb4e | 110 | N_BINCL or N_EXCL. */ |
c906108c | 111 | |
c5aa993b | 112 | int instance; |
c906108c | 113 | |
c5aa993b | 114 | /* Pointer to vector of types */ |
c906108c | 115 | |
c5aa993b | 116 | struct type **vector; |
c906108c | 117 | |
c5aa993b | 118 | /* Allocated length (# elts) of that vector */ |
c906108c | 119 | |
c5aa993b JM |
120 | int length; |
121 | ||
122 | }; | |
c906108c | 123 | |
c378eb4e | 124 | /* The table of header_files of this OBJFILE. */ |
c906108c SS |
125 | #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files) |
126 | ||
c378eb4e | 127 | /* The actual length of HEADER_FILES. */ |
c906108c SS |
128 | #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files) |
129 | ||
c378eb4e | 130 | /* The allocated lengh of HEADER_FILES. */ |
c906108c SS |
131 | #define N_ALLOCATED_HEADER_FILES(OBJFILE) \ |
132 | (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files) | |
133 | ||
134 | /* Within each object file, various header files are assigned numbers. | |
135 | A type is defined or referred to with a pair of numbers | |
136 | (FILENUM,TYPENUM) where FILENUM is the number of the header file | |
137 | and TYPENUM is the number within that header file. | |
138 | TYPENUM is the index within the vector of types for that header file. | |
139 | ||
140 | FILENUM == 0 is special; it refers to the main source of the object file, | |
141 | and not to any header file. FILENUM != 1 is interpreted by looking it up | |
142 | in the following table, which contains indices in header_files. */ | |
143 | ||
d65d5705 | 144 | extern int *this_object_header_files; |
c906108c | 145 | |
d65d5705 | 146 | extern int n_this_object_header_files; |
c906108c | 147 | |
d65d5705 | 148 | extern int n_allocated_this_object_header_files; |
c906108c | 149 | |
0a0edcd5 | 150 | extern void cleanup_undefined_stabs_types (struct objfile *); |
c906108c | 151 | |
a14ed312 | 152 | extern long read_number (char **, int); |
c906108c | 153 | |
a121b7c1 | 154 | extern struct symbol *define_symbol (CORE_ADDR, const char *, int, int, |
a14ed312 | 155 | struct objfile *); |
c906108c | 156 | |
a14ed312 | 157 | extern void stabsread_init (void); |
c906108c | 158 | |
a14ed312 | 159 | extern void stabsread_new_init (void); |
c906108c | 160 | |
a14ed312 | 161 | extern void start_stabs (void); |
c906108c | 162 | |
a14ed312 | 163 | extern void end_stabs (void); |
c906108c | 164 | |
a14ed312 | 165 | extern void finish_global_stabs (struct objfile *objfile); |
c906108c | 166 | \f |
c906108c SS |
167 | /* COFF files can have multiple .stab sections, if they are linked |
168 | using --split-by-reloc. This linked list is used to pass the | |
169 | information into the functions in dbxread.c. */ | |
170 | struct stab_section_list | |
c5aa993b JM |
171 | { |
172 | /* Next in list. */ | |
173 | struct stab_section_list *next; | |
c906108c | 174 | |
c5aa993b JM |
175 | /* Stab section. */ |
176 | asection *section; | |
177 | }; | |
c906108c SS |
178 | \f |
179 | /* Functions exported by dbxread.c. These are not in stabsread.c because | |
180 | they are only used by some stabs readers. */ | |
181 | ||
8763cede DE |
182 | extern struct partial_symtab *dbx_end_psymtab |
183 | (struct objfile *objfile, struct partial_symtab *pst, | |
184 | const char **include_list, int num_includes, | |
185 | int capping_symbol_offset, CORE_ADDR capping_text, | |
186 | struct partial_symtab **dependency_list, int number_dependencies, | |
187 | int textlow_not_set); | |
c906108c | 188 | |
a121b7c1 | 189 | extern void process_one_symbol (int, int, CORE_ADDR, const char *, |
3189cb12 | 190 | const struct section_offsets *, |
5ffa0793 | 191 | struct objfile *, enum language); |
5ae5f592 AC |
192 | |
193 | extern void elfstab_build_psymtabs (struct objfile *objfile, | |
086df311 | 194 | asection *stabsect, |
5ae5f592 AC |
195 | file_ptr stabstroffset, |
196 | unsigned int stabstrsize); | |
c906108c SS |
197 | |
198 | extern void coffstab_build_psymtabs | |
a14ed312 | 199 | (struct objfile *objfile, |
a14ed312 KB |
200 | CORE_ADDR textaddr, unsigned int textsize, |
201 | struct stab_section_list *stabs, | |
202 | file_ptr stabstroffset, unsigned int stabstrsize); | |
c906108c | 203 | |
c67a9c90 TG |
204 | extern void stabsect_build_psymtabs (struct objfile *objfile, char *stab_name, |
205 | char *stabstr_name, char *text_name); | |
c906108c | 206 | |
a121b7c1 | 207 | extern int symbol_reference_defined (const char **); |
c906108c | 208 | |
a121b7c1 | 209 | extern void ref_add (int, struct symbol *, const char *, CORE_ADDR); |
c906108c | 210 | |
a14ed312 | 211 | extern struct symbol *ref_search (int); |
c906108c | 212 | |
d3d55eeb EZ |
213 | extern void free_header_files (void); |
214 | ||
215 | extern void init_header_files (void); | |
216 | ||
77d6f1aa TT |
217 | /* Scan through all of the global symbols defined in the object file, |
218 | assigning values to the debugging symbols that need to be assigned | |
219 | to. Get these symbols from the minimal symbol table. */ | |
220 | ||
221 | extern void scan_file_globals (struct objfile *objfile); |