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/tmp/gdb-7.10/gdb/stabsread.h
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1 /* Include file for stabs debugging format support functions.
2  Copyright (C) 1986-2015 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 
21 /* Definitions, prototypes, etc for stabs debugging format support
22  functions.
23 
24  Variables declared in this file can be defined by #define-ing
25  the name EXTERN to null. It is used to declare variables that
26  are normally extern, but which get defined in a single module
27  using this technique. */
28 
29 #ifndef EXTERN
30 #define EXTERN extern
31 #endif
32 
33 /* Hash table of global symbols whose values are not known yet.
34  They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
35  have the correct data for that slot yet.
36 
37  The use of the LOC_BLOCK code in this chain is nonstandard--
38  it refers to a FORTRAN common block rather than the usual meaning, and
39  the such LOC_BLOCK symbols use their fields in nonstandard ways. */
40 
41 EXTERN struct symbol *global_sym_chain[HASHSIZE];
42 
43 extern void common_block_start (char *, struct objfile *);
44 extern void common_block_end (struct objfile *);
45 
46 /* Kludge for xcoffread.c */
47 
49  {
50  int count;
51  int length;
52  char *stab[1];
53  };
54 
56 
57 /* The type code that process_one_symbol saw on its previous invocation.
58  Used to detect pairs of N_SO symbols. */
59 
61 
62 /* Support for Sun changes to dbx symbol format. */
63 
64 /* For each identified header file, we have a table of types defined
65  in that header file.
66 
67  header_files maps header file names to their type tables.
68  It is a vector of n_header_files elements.
69  Each element describes one header file.
70  It contains a vector of types.
71 
72  Sometimes it can happen that the same header file produces
73  different results when included in different places.
74  This can result from conditionals or from different
75  things done before including the file.
76  When this happens, there are multiple entries for the file in this table,
77  one entry for each distinct set of results.
78  The entries are distinguished by the INSTANCE field.
79  The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
80  used to match header-file references to their corresponding data. */
81 
83  {
84 
85  /* Name of header file */
86 
87  char *name;
88 
89  /* Numeric code distinguishing instances of one header file that
90  produced different results when included. It comes from the
91  N_BINCL or N_EXCL. */
92 
93  int instance;
94 
95  /* Pointer to vector of types */
96 
97  struct type **vector;
98 
99  /* Allocated length (# elts) of that vector */
100 
101  int length;
102 
103  };
104 
105 /* The table of header_files of this OBJFILE. */
106 #define HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->header_files)
107 
108 /* The actual length of HEADER_FILES. */
109 #define N_HEADER_FILES(OBJFILE) (DBX_SYMFILE_INFO (OBJFILE)->n_header_files)
110 
111 /* The allocated lengh of HEADER_FILES. */
112 #define N_ALLOCATED_HEADER_FILES(OBJFILE) \
113  (DBX_SYMFILE_INFO (OBJFILE)->n_allocated_header_files)
114 
115 /* Within each object file, various header files are assigned numbers.
116  A type is defined or referred to with a pair of numbers
117  (FILENUM,TYPENUM) where FILENUM is the number of the header file
118  and TYPENUM is the number within that header file.
119  TYPENUM is the index within the vector of types for that header file.
120 
121  FILENUM == 0 is special; it refers to the main source of the object file,
122  and not to any header file. FILENUM != 1 is interpreted by looking it up
123  in the following table, which contains indices in header_files. */
124 
126 
128 
130 
131 extern void cleanup_undefined_stabs_types (struct objfile *);
132 
133 extern long read_number (char **, int);
134 
135 extern struct symbol *define_symbol (CORE_ADDR, char *, int, int,
136  struct objfile *);
137 
138 extern void stabsread_init (void);
139 
140 extern void stabsread_new_init (void);
141 
142 extern void start_stabs (void);
143 
144 extern void end_stabs (void);
145 
146 extern void finish_global_stabs (struct objfile *objfile);
147 
148 /* COFF files can have multiple .stab sections, if they are linked
149  using --split-by-reloc. This linked list is used to pass the
150  information into the functions in dbxread.c. */
152  {
153  /* Next in list. */
155 
156  /* Stab section. */
157  asection *section;
158  };
159 
160 /* Functions exported by dbxread.c. These are not in stabsread.c because
161  they are only used by some stabs readers. */
162 
163 extern struct partial_symtab *end_psymtab (struct objfile *objfile,
164  struct partial_symtab *pst,
165  const char **include_list,
166  int num_includes,
167  int capping_symbol_offset,
168  CORE_ADDR capping_text,
169  struct partial_symtab
170  **dependency_list,
171  int number_dependencies,
172  int textlow_not_set);
173 
174 extern void process_one_symbol (int, int, CORE_ADDR, char *,
175  const struct section_offsets *,
176  struct objfile *);
177 
178 extern void elfstab_build_psymtabs (struct objfile *objfile,
179  asection *stabsect,
180  file_ptr stabstroffset,
181  unsigned int stabstrsize);
182 
183 extern void coffstab_build_psymtabs
184  (struct objfile *objfile,
185  CORE_ADDR textaddr, unsigned int textsize,
186  struct stab_section_list *stabs,
187  file_ptr stabstroffset, unsigned int stabstrsize);
188 
189 extern void stabsect_build_psymtabs (struct objfile *objfile, char *stab_name,
190  char *stabstr_name, char *text_name);
191 
192 extern int symbol_reference_defined (char **);
193 
194 extern void ref_add (int, struct symbol *, char *, CORE_ADDR);
195 
196 extern struct symbol *ref_search (int);
197 
198 extern void free_header_files (void);
199 
200 extern void init_header_files (void);
201 
202 #undef EXTERN
void common_block_start(char *, struct objfile *)
Definition: stabsread.c:4330
int instance
Definition: stabsread.h:93
void ref_add(int, struct symbol *, char *, CORE_ADDR)
Definition: stabsread.c:513
bfd_vma CORE_ADDR
Definition: common-types.h:41
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:3282
void stabsect_build_psymtabs(struct objfile *objfile, char *stab_name, char *stabstr_name, char *text_name)
Definition: dbxread.c:3454
void cleanup_undefined_stabs_types(struct objfile *)
Definition: stabsread.c:4605
void free_header_files(void)
Definition: dbxread.c:306
void init_header_files(void)
Definition: dbxread.c:319
void elfstab_build_psymtabs(struct objfile *objfile, asection *stabsect, file_ptr stabstroffset, unsigned int stabstrsize)
Definition: dbxread.c:3373
struct partial_symtab * 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:2199
void finish_global_stabs(struct objfile *objfile)
Definition: stabsread.c:4801
asection * section
Definition: stabsread.h:157
struct stab_section_list * next
Definition: stabsread.h:154
char * stab[1]
Definition: stabsread.h:52
struct type ** vector
Definition: stabsread.h:97
EXTERN int n_allocated_this_object_header_files
Definition: stabsread.h:129
Definition: gdbtypes.h:749
void start_stabs(void)
Definition: stabsread.c:4774
struct symbol * define_symbol(CORE_ADDR, char *, int, int, struct objfile *)
Definition: stabsread.c:625
EXTERN int previous_stab_code
Definition: stabsread.h:60
void stabsread_new_init(void)
Definition: stabsread.c:4764
int symbol_reference_defined(char **)
Definition: stabsread.c:573
EXTERN int n_this_object_header_files
Definition: stabsread.h:127
EXTERN struct pending_stabs * global_stabs
Definition: stabsread.h:55
void end_stabs(void)
Definition: stabsread.c:4789
char * name
Definition: stabsread.h:87
#define EXTERN
Definition: stabsread.h:30
EXTERN int * this_object_header_files
Definition: stabsread.h:125
struct symbol * ref_search(int)
Definition: stabsread.c:537
#define HASHSIZE
Definition: buildsym.h:46
void process_one_symbol(int, int, CORE_ADDR, char *, const struct section_offsets *, struct objfile *)
Definition: dbxread.c:2684
long read_number(char **, int)
void common_block_end(struct objfile *)
Definition: stabsread.c:4346
void stabsread_init(void)
Definition: stabsread.c:4755
Definition: symtab.h:703