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/tmp/gdb-8.1/gdb/stabsread.h
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1 /* Include file for stabs debugging format support functions.
2 Copyright (C) 1986-2018 Free Software Foundation, Inc.
3
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
8 the Free Software Foundation; either version 3 of the License, or
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
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18
19 struct objfile;
20 enum language;
21
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
34 /* Hash table of global symbols whose values are not known yet.
35 They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
36 have the correct data for that slot yet.
37
38 The use of the LOC_BLOCK code in this chain is nonstandard--
39 it refers to a FORTRAN common block rather than the usual meaning, and
40 the such LOC_BLOCK symbols use their fields in nonstandard ways. */
41
42 EXTERN struct symbol *global_sym_chain[HASHSIZE];
43
44 extern void common_block_start (const char *, struct objfile *);
45 extern void common_block_end (struct objfile *);
46
47 /* Kludge for xcoffread.c */
48
49 struct pending_stabs
50 {
51 int count;
52 int length;
53 char *stab[1];
54 };
55
56 EXTERN struct pending_stabs *global_stabs;
57
58 /* The type code that process_one_symbol saw on its previous invocation.
59 Used to detect pairs of N_SO symbols. */
60
61 EXTERN int previous_stab_code;
62
63 /* Support for Sun changes to dbx symbol format. */
64
65 /* For each identified header file, we have a table of types defined
66 in that header file.
67
68 header_files maps header file names to their type tables.
69 It is a vector of n_header_files elements.
70 Each element describes one header file.
71 It contains a vector of types.
72
73 Sometimes it can happen that the same header file produces
74 different results when included in different places.
75 This can result from conditionals or from different
76 things done before including the file.
77 When this happens, there are multiple entries for the file in this table,
78 one entry for each distinct set of results.
79 The entries are distinguished by the INSTANCE field.
80 The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
81 used to match header-file references to their corresponding data. */
82
83 struct header_file
84 {
85
86 /* Name of header file */
87
88 char *name;
89
90 /* Numeric code distinguishing instances of one header file that
91 produced different results when included. It comes from the
92 N_BINCL or N_EXCL. */
93
94 int instance;
95
96 /* Pointer to vector of types */
97
98 struct type **vector;
99
100 /* Allocated length (# elts) of that vector */
101
102 int length;
103
104 };
105
106 /* The table of header_files of this OBJFILE. */
107 #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
108
109 /* The actual length of HEADER_FILES. */
110 #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
111
112 /* The allocated lengh of HEADER_FILES. */
113 #define N_ALLOCATED_HEADER_FILES(OBJFILE) \
114 (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
115
116 /* Within each object file, various header files are assigned numbers.
117 A type is defined or referred to with a pair of numbers
118 (FILENUM,TYPENUM) where FILENUM is the number of the header file
119 and TYPENUM is the number within that header file.
120 TYPENUM is the index within the vector of types for that header file.
121
122 FILENUM == 0 is special; it refers to the main source of the object file,
123 and not to any header file. FILENUM != 1 is interpreted by looking it up
124 in the following table, which contains indices in header_files. */
125
126 EXTERN int *this_object_header_files;
127
128 EXTERN int n_this_object_header_files;
129
130 EXTERN int n_allocated_this_object_header_files;
131
132 extern void cleanup_undefined_stabs_types (struct objfile *);
133
134 extern long read_number (char **, int);
135
136 extern struct symbol *define_symbol (CORE_ADDR, const char *, int, int,
137 struct objfile *);
138
139 extern void stabsread_init (void);
140
141 extern void stabsread_new_init (void);
142
143 extern void start_stabs (void);
144
145 extern void end_stabs (void);
146
147 extern void finish_global_stabs (struct objfile *objfile);
148
149 /* COFF files can have multiple .stab sections, if they are linked
150 using --split-by-reloc. This linked list is used to pass the
151 information into the functions in dbxread.c. */
152 struct stab_section_list
153 {
154 /* Next in list. */
155 struct stab_section_list *next;
156
157 /* Stab section. */
158 asection *section;
159 };
160
161 /* Functions exported by dbxread.c. These are not in stabsread.c because
162 they are only used by some stabs readers. */
163
164 extern struct partial_symtab *dbx_end_psymtab
165 (struct objfile *objfile, struct partial_symtab *pst,
166 const char **include_list, int num_includes,
167 int capping_symbol_offset, CORE_ADDR capping_text,
168 struct partial_symtab **dependency_list, int number_dependencies,
169 int textlow_not_set);
170
171 extern void process_one_symbol (int, int, CORE_ADDR, const char *,
172 const struct section_offsets *,
173 struct objfile *, enum language);
174
175 extern void elfstab_build_psymtabs (struct objfile *objfile,
176 asection *stabsect,
177 file_ptr stabstroffset,
178 unsigned int stabstrsize);
179
180 extern void coffstab_build_psymtabs
181 (struct objfile *objfile,
182 CORE_ADDR textaddr, unsigned int textsize,
183 struct stab_section_list *stabs,
184 file_ptr stabstroffset, unsigned int stabstrsize);
185
186 extern void stabsect_build_psymtabs (struct objfile *objfile, char *stab_name,
187 char *stabstr_name, char *text_name);
188
189 extern int symbol_reference_defined (const char **);
190
191 extern void ref_add (int, struct symbol *, const char *, CORE_ADDR);
192
193 extern struct symbol *ref_search (int);
194
195 extern void free_header_files (void);
196
197 extern void init_header_files (void);
198
199 #undef EXTERN
header_file::instance
int instance
Definition: stabsread.h:94
header_file::length
int length
Definition: stabsread.h:102
CORE_ADDR
bfd_vma CORE_ADDR
Definition: common-types.h:41
coffstab_build_psymtabs
void coffstab_build_psymtabs(struct objfile *objfile, CORE_ADDR textaddr, unsigned int textsize, struct stab_section_list *stabs, file_ptr stabstroffset, unsigned int stabstrsize)
Definition: dbxread.c:3066
stabsect_build_psymtabs
void stabsect_build_psymtabs(struct objfile *objfile, char *stab_name, char *stabstr_name, char *text_name)
Definition: dbxread.c:3228
cleanup_undefined_stabs_types
void cleanup_undefined_stabs_types(struct objfile *)
Definition: stabsread.c:4610
free_header_files
void free_header_files(void)
Definition: dbxread.c:301
partial_symtab
Definition: psympriv.h:77
init_header_files
void init_header_files(void)
Definition: dbxread.c:314
elfstab_build_psymtabs
void elfstab_build_psymtabs(struct objfile *objfile, asection *stabsect, file_ptr stabstroffset, unsigned int stabstrsize)
Definition: dbxread.c:3152
define_symbol
struct symbol * define_symbol(CORE_ADDR, const char *, int, int, struct objfile *)
Definition: stabsread.c:645
header_file
Definition: stabsread.h:83
finish_global_stabs
void finish_global_stabs(struct objfile *objfile)
Definition: stabsread.c:4806
stab_section_list::section
asection * section
Definition: stabsread.h:158
section_offsets
Definition: symtab.h:1271
stab_section_list::next
struct stab_section_list * next
Definition: stabsread.h:155
pending_stabs::stab
char * stab[1]
Definition: stabsread.h:53
header_file::vector
struct type ** vector
Definition: stabsread.h:98
n_allocated_this_object_header_files
EXTERN int n_allocated_this_object_header_files
Definition: stabsread.h:130
type
Definition: gdbtypes.h:749
start_stabs
void start_stabs(void)
Definition: stabsread.c:4779
previous_stab_code
EXTERN int previous_stab_code
Definition: stabsread.h:61
stabsread_new_init
void stabsread_new_init(void)
Definition: stabsread.c:4769
n_this_object_header_files
EXTERN int n_this_object_header_files
Definition: stabsread.h:128
global_stabs
EXTERN struct pending_stabs * global_stabs
Definition: stabsread.h:56
objfile
Definition: objfiles.h:286
pending_stabs::count
int count
Definition: stabsread.h:51
end_stabs
void end_stabs(void)
Definition: stabsread.c:4794
header_file::name
char * name
Definition: stabsread.h:88
pending_stabs
Definition: stabsread.h:49
ref_add
void ref_add(int, struct symbol *, const char *, CORE_ADDR)
Definition: stabsread.c:532
EXTERN
#define EXTERN
Definition: stabsread.h:31
process_one_symbol
void process_one_symbol(int, int, CORE_ADDR, const char *, const struct section_offsets *, struct objfile *, enum language)
this_object_header_files
EXTERN int * this_object_header_files
Definition: stabsread.h:126
ref_search
struct symbol * ref_search(int)
Definition: stabsread.c:556
symbol_reference_defined
int symbol_reference_defined(const char **)
Definition: stabsread.c:592
HASHSIZE
#define HASHSIZE
Definition: buildsym.h:49
read_number
long read_number(char **, int)
common_block_end
void common_block_end(struct objfile *)
Definition: stabsread.c:4351
language
language
Definition: defs.h:203
pending_stabs::length
int length
Definition: stabsread.h:52
stabsread_init
void stabsread_init(void)
Definition: stabsread.c:4760
common_block_start
void common_block_start(const char *, struct objfile *)
Definition: stabsread.c:4335
symbol
Definition: symtab.h:1049
dbx_end_psymtab
struct partial_symtab * dbx_end_psymtab(struct objfile *objfile, struct partial_symtab *pst, const char **include_list, int num_includes, int capping_symbol_offset, CORE_ADDR capping_text, struct partial_symtab **dependency_list, int number_dependencies, int textlow_not_set)
Definition: dbxread.c:2028
global_sym_chain
EXTERN struct symbol * global_sym_chain[HASHSIZE]
Definition: stabsread.h:42
stab_section_list
Definition: stabsread.h:152