1 /* Definitions for reading symbol files into GDB.
2 Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 #if !defined (SYMFILE_H)
24 /* This file requires that you first include "bfd.h". */
26 struct psymbol_allocation_list
{
27 struct partial_symbol
*list
;
28 struct partial_symbol
*next
;
32 /* Structure to keep track of symbol reading functions for various
37 /* BFD flavour that we handle, or (as a special kludge, see xcoffread.c,
38 (enum bfd_flavour)-1 for xcoff). */
40 enum bfd_flavour sym_flavour
;
42 /* Initializes anything that is global to the entire symbol table. It is
43 called during symbol_file_add, when we begin debugging an entirely new
46 void (*sym_new_init
) PARAMS ((struct objfile
*));
48 /* Reads any initial information from a symbol file, and initializes the
49 struct sym_fns SF in preparation for sym_read(). It is called every
50 time we read a symbol file for any reason. */
52 void (*sym_init
) PARAMS ((struct objfile
*));
54 /* sym_read (objfile, addr, mainline)
55 Reads a symbol file into a psymtab (or possibly a symtab).
56 OBJFILE is the objfile struct for the file we are reading.
58 are the offset between the file's specified section addresses and
59 their true addresses in memory.
60 MAINLINE is 1 if this is the
61 main symbol table being read, and 0 if a secondary
62 symbol file (e.g. shared library or dynamically loaded file)
65 void (*sym_read
) PARAMS ((struct objfile
*, struct section_offsets
*, int));
67 /* Called when we are finished with an objfile. Should do all cleanup
68 that is specific to the object file format for the particular objfile. */
70 void (*sym_finish
) PARAMS ((struct objfile
*));
72 /* This function produces a file-dependent section_offsets structure,
73 allocated in the objfile's storage, and based on the parameter.
74 The parameter is currently a CORE_ADDR (FIXME!) for backward compatibility
75 with the higher levels of GDB. It should probably be changed to
76 a string, where NULL means the default, and others are parsed in a file
77 dependent way. The result of this function is handed in to sym_read. */
79 struct section_offsets
*(*sym_offsets
) PARAMS ((struct objfile
*, CORE_ADDR
));
81 /* Finds the next struct sym_fns. They are allocated and initialized
82 in whatever module implements the functions pointed to; an
83 initializer calls add_symtab_fns to add them to the global chain. */
90 extend_psymbol_list
PARAMS ((struct psymbol_allocation_list
*,
93 /* Add any kind of symbol to a psymbol_allocation_list. */
95 #ifndef INLINE_ADD_PSYMBOL
96 /* Default this to off for now, and probably eventually remove support for inlining via
97 macros. Real world tests show no performance improvements by inlining, and the macros
98 just make debugging gdb more complicated and make gdb larger by up to 150 Kb. */
99 #define INLINE_ADD_PSYMBOL 0
102 #include "demangle.h"
104 #if !INLINE_ADD_PSYMBOL
106 /* Since one arg is a struct, we have to pass in a ptr and deref it (sigh) */
108 #define ADD_PSYMBOL_TO_LIST(name, namelength, namespace, class, list, value, language, objfile) \
109 add_psymbol_to_list (name, namelength, namespace, class, &list, value, language, objfile)
111 #define ADD_PSYMBOL_ADDR_TO_LIST(name, namelength, namespace, class, list, value, language, objfile) \
112 add_psymbol_addr_to_list (name, namelength, namespace, class, &list, value, language, objfile)
114 #else /* !INLINE_ADD_PSYMBOL */
116 #define ADD_PSYMBOL_VT_TO_LIST(NAME,NAMELENGTH,NAMESPACE,CLASS,LIST,VALUE,VT,LANGUAGE, OBJFILE) \
118 register struct partial_symbol *psym; \
119 if ((LIST).next >= (LIST).list + (LIST).size) \
120 extend_psymbol_list (&(LIST),(OBJFILE)); \
121 psym = (LIST).next++; \
122 SYMBOL_NAME (psym) = \
123 (char *) obstack_alloc (&objfile->psymbol_obstack, \
125 memcpy (SYMBOL_NAME (psym), (NAME), (NAMELENGTH)); \
126 SYMBOL_NAME (psym)[(NAMELENGTH)] = '\0'; \
127 SYMBOL_NAMESPACE (psym) = (NAMESPACE); \
128 SYMBOL_SECTION (psym) = 0; \
129 PSYMBOL_CLASS (psym) = (CLASS); \
130 VT (psym) = (VALUE); \
131 SYMBOL_LANGUAGE (psym) = (LANGUAGE); \
132 SYMBOL_INIT_LANGUAGE_SPECIFIC (psym, LANGUAGE); \
133 OBJSTAT (objfile, n_psyms++); \
136 /* Add a symbol with an integer value to a psymtab. */
138 #define ADD_PSYMBOL_TO_LIST(name, namelength, namespace, class, list, value, language, objfile) \
139 ADD_PSYMBOL_VT_TO_LIST (name, namelength, namespace, class, list, value, SYMBOL_VALUE, language, objfile)
141 /* Add a symbol with a CORE_ADDR value to a psymtab. */
143 #define ADD_PSYMBOL_ADDR_TO_LIST(name, namelength, namespace, class, list, value, language, objfile)\
144 ADD_PSYMBOL_VT_TO_LIST (name, namelength, namespace, class, list, value, SYMBOL_VALUE_ADDRESS, language, objfile)
146 #endif /* INLINE_ADD_PSYMBOL */
148 extern void init_psymbol_list
PARAMS ((struct objfile
*, int));
151 sort_pst_symbols
PARAMS ((struct partial_symtab
*));
153 extern struct symtab
*
154 allocate_symtab
PARAMS ((char *, struct objfile
*));
157 free_named_symtabs
PARAMS ((char *));
160 fill_in_vptr_fieldno
PARAMS ((struct type
*));
163 add_symtab_fns
PARAMS ((struct sym_fns
*));
166 init_entry_point_info
PARAMS ((struct objfile
*));
169 syms_from_objfile
PARAMS ((struct objfile
*, CORE_ADDR
, int, int));
172 new_symfile_objfile
PARAMS ((struct objfile
*, int, int));
174 extern struct partial_symtab
*
175 start_psymtab_common
PARAMS ((struct objfile
*, struct section_offsets
*,
177 struct partial_symbol
*,
178 struct partial_symbol
*));
180 /* Sorting your symbols for fast lookup or alphabetical printing. */
183 sort_block_syms
PARAMS ((struct block
*));
186 sort_symtab_syms
PARAMS ((struct symtab
*));
188 /* Make a copy of the string at PTR with SIZE characters in the symbol obstack
189 (and add a null character at the end in the copy).
190 Returns the address of the copy. */
193 obsavestring
PARAMS ((char *, int, struct obstack
*));
195 /* Concatenate strings S1, S2 and S3; return the new string.
196 Space is found in the symbol_obstack. */
199 obconcat
PARAMS ((struct obstack
*obstackp
, const char *, const char *,
204 /* whether to auto load solibs at startup time: 0/1. */
206 extern int auto_solib_add
;
210 extern struct partial_symtab
*
211 allocate_psymtab
PARAMS ((char *, struct objfile
*));
213 /* Remote targets may wish to use this as their load function. */
214 extern void generic_load
PARAMS ((char *name
, int from_tty
));
216 /* From dwarfread.c */
219 dwarf_build_psymtabs
PARAMS ((struct objfile
*, struct section_offsets
*, int,
220 file_ptr
, unsigned int, file_ptr
, unsigned int));
222 /* From mdebugread.c */
224 /* Hack to force structures to exist before use in parameter list. */
225 struct ecoff_debug_hack
227 struct ecoff_debug_swap
*a
;
228 struct ecoff_debug_info
*b
;
231 mdebug_build_psymtabs
PARAMS ((struct objfile
*,
232 const struct ecoff_debug_swap
*,
233 struct ecoff_debug_info
*,
234 struct section_offsets
*));
237 elfmdebug_build_psymtabs
PARAMS ((struct objfile
*,
238 const struct ecoff_debug_swap
*,
240 struct section_offsets
*));
242 /* From demangle.c */
245 set_demangling_style
PARAMS ((char *));
247 #endif /* !defined(SYMFILE_H) */
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