1 /* Symbol table definitions for GDB.
2 Copyright (C) 1986, 1989, 1991, 1992 Free Software Foundation, Inc.
4 This file is part of GDB.
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 2 of the License, or
9 (at your option) any later version.
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.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
20 #if !defined (SYMTAB_H)
23 /* Some definitions and declarations to go with use of obstacks. */
26 #define obstack_chunk_alloc xmalloc
27 #define obstack_chunk_free free
29 /* Define a structure for the information that is common to all symbol types,
30 including minimal symbols, partial symbols, and full symbols. */
32 struct general_symbol_info
34 /* Name of the symbol. This is a required field. Storage for the name is
35 allocated on the psymbol_obstack or symbol_obstack for the associated
40 /* Constant value, or address if static, or register number,
41 or offset in arguments, or offset in stack frame. All of
42 these are in host byte order (though what they point to might
43 be in target byte order, e.g. LOC_CONST_BYTES).
45 Note that the address of a function is SYMBOL_VALUE_ADDRESS (pst)
46 in a partial symbol table, but BLOCK_START (SYMBOL_BLOCK_VALUE (st))
51 /* for LOC_CONST, LOC_REGISTER, LOC_ARG, LOC_REF_ARG, LOC_REGPARM,
60 /* for LOC_CONST_BYTES */
64 /* for LOC_STATIC, LOC_LABEL */
68 /* for opaque typedef struct chain */
74 /* In a multilanguage environment, some language specific information may
75 need to be recorded along with each symbol. */
77 struct language_dependent_info
80 /* Record the language that this information applies to. */
82 enum language language;
84 /* Since one and only one language can apply, wrap the information inside
94 /* start-sanitize-chill */
100 /* end-sanitize-chill */
105 #define SYMBOL_NAME(symbol) (symbol)->ginfo.name
106 #define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.value
107 #define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address
108 #define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes
109 #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block
110 #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain
111 #define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.lang_specific.language
113 #define SYMBOL_CPLUS_DEMANGLED_NAME(symbol) \
114 (symbol)->ginfo.lang_specific.lang_u.cplus_specific.demangled_name
117 extern int demangle; /* We reference it, so go ahead and declare it. */
119 /* Macro that initializes the language dependent portion of a symbol
120 depending upon the language for the symbol. */
122 #define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \
124 SYMBOL_LANGUAGE (symbol) = language; \
125 if (SYMBOL_LANGUAGE (symbol) == language_cplus) \
127 SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
129 /* start-sanitize-chill */ \
130 else if (SYMBOL_LANGUAGE (symbol) == language_chill) \
132 SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
134 /* end-sanitize-chill */ \
137 memset (&(symbol)->ginfo.lang_specific.lang_u, 0, \
138 sizeof ((symbol)->ginfo.lang_specific.lang_u)); \
142 /* Macro that attempts to initialize the demangled name for a symbol,
143 based on the language of that symbol. If the language is set to
144 language_auto, it will attempt to find any demangling algorithm
145 that works and then set the language appropriately. If no demangling
146 of any kind is found, the language is set back to language_unknown,
147 so we can avoid doing this work again the next time we encounter
148 the symbol. Any required space to store the name is obtained from the
149 specified obstack. */
151 #define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \
153 char *demangled = NULL; \
154 if (SYMBOL_LANGUAGE (symbol) == language_cplus \
155 || SYMBOL_LANGUAGE (symbol) == language_auto) \
158 cplus_demangle (SYMBOL_NAME (symbol), DMGL_PARAMS | DMGL_ANSI);\
159 if (demangled != NULL) \
161 SYMBOL_LANGUAGE (symbol) = language_cplus; \
162 SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
163 obsavestring (demangled, strlen (demangled), (obstack)); \
168 SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
171 /* start-sanitize-chill */ \
172 if (demangled == NULL \
173 && (SYMBOL_LANGUAGE (symbol) == language_chill \
174 || SYMBOL_LANGUAGE (symbol) == language_auto)) \
177 chill_demangle (SYMBOL_NAME (symbol)); \
178 if (demangled != NULL) \
180 SYMBOL_LANGUAGE (symbol) = language_chill; \
181 SYMBOL_CHILL_DEMANGLED_NAME (symbol) = \
182 obsavestring (demangled, strlen (demangled), (obstack)); \
187 SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
190 /* end-sanitize-chill */ \
191 if (SYMBOL_LANGUAGE (symbol) == language_auto) \
193 SYMBOL_LANGUAGE (symbol) = language_unknown; \
197 /* Macro that returns the demangled name for a symbol based on the language
198 for that symbol. If no demangled name exists, returns NULL. */
200 #define SYMBOL_DEMANGLED_NAME(symbol) \
201 (SYMBOL_LANGUAGE (symbol) == language_cplus \
202 ? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \
205 /* start-sanitize-chill */
207 #define SYMBOL_CHILL_DEMANGLED_NAME(symbol) \
208 (symbol)->ginfo.lang_specific.lang_u.chill_specific.demangled_name
210 /* Redefine SYMBOL_DEMANGLED_NAME. This is simplier than trying to
211 devise a macro for which part of it can be cleanly sanitized away. */
213 #undef SYMBOL_DEMANGLED_NAME
214 #define SYMBOL_DEMANGLED_NAME(symbol) \
215 (SYMBOL_LANGUAGE (symbol) == language_cplus \
216 ? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \
217 : (SYMBOL_LANGUAGE (symbol) == language_chill \
218 ? SYMBOL_CHILL_DEMANGLED_NAME (symbol) \
221 /* end-sanitize-chill */
223 /* Macro that returns the "natural source name" of a symbol. In C++ this is
224 the "demangled" form of the name if demangle is on and the "mangled" form
225 of the name if demangle is off. In other languages this is just the
226 symbol name. The result should never be NULL. */
228 #define SYMBOL_SOURCE_NAME(symbol) \
229 (demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \
230 ? SYMBOL_DEMANGLED_NAME (symbol) \
231 : SYMBOL_NAME (symbol))
233 /* Macro that returns the "natural assembly name" of a symbol. In C++ this is
234 the "mangled" form of the name if demangle is off, or if demangle is on and
235 asm_demangle is off. Otherwise if asm_demangle is on it is the "demangled"
236 form. In other languages this is just the symbol name. The result should
239 #define SYMBOL_LINKAGE_NAME(symbol) \
240 (demangle && asm_demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \
241 ? SYMBOL_DEMANGLED_NAME (symbol) \
242 : SYMBOL_NAME (symbol))
244 /* Macro that tests a symbol for a match against a specified name string.
245 First test the unencoded name, then looks for and test a C++ encoded
246 name if it exists. Note that whitespace is ignored while attempting to
247 match a C++ encoded name, so that "foo::bar(int,long)" is the same as
248 "foo :: bar (int, long)".
249 Evaluates to zero if the match fails, or nonzero if it succeeds. */
251 #define SYMBOL_MATCHES_NAME(symbol, name) \
252 (STREQ (SYMBOL_NAME (symbol), (name)) \
253 || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
254 && strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0))
256 /* Macro that tests a symbol for an re-match against the last compiled regular
257 expression. First test the unencoded name, then look for and test a C++
258 encoded name if it exists.
259 Evaluates to zero if the match fails, or nonzero if it succeeds. */
261 #define SYMBOL_MATCHES_REGEXP(symbol) \
262 (re_exec (SYMBOL_NAME (symbol)) != 0 \
263 || (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
264 && re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0))
266 /* Define a simple structure used to hold some very basic information about
267 all defined global symbols (text, data, bss, abs, etc). The only required
268 information is the general_symbol_info.
270 In many cases, even if a file was compiled with no special options for
271 debugging at all, as long as was not stripped it will contain sufficient
272 information to build a useful minimal symbol table using this structure.
273 Even when a file contains enough debugging information to build a full
274 symbol table, these minimal symbols are still useful for quickly mapping
275 between names and addresses, and vice versa. They are also sometimes
276 used to figure out what full symbol table entries need to be read in. */
278 struct minimal_symbol
281 /* The general symbol info required for all types of symbols. */
283 struct general_symbol_info ginfo;
285 /* The info field is available for caching machine-specific information that
286 The AMD 29000 tdep.c uses it to remember things it has decoded from the
287 instructions in the function header, so it doesn't have to rederive the
288 info constantly (over a serial line). It is initialized to zero and
289 stays that way until target-dependent code sets it. Storage for any data
290 pointed to by this field should be allocated on the symbol_obstack for
291 the associated objfile. The type would be "void *" except for reasons
292 of compatibility with older compilers. This field is optional. */
296 /* Classification types for this symbol. These should be taken as "advisory
297 only", since if gdb can't easily figure out a classification it simply
298 selects mst_unknown. It may also have to guess when it can't figure out
299 which is a better match between two types (mst_data versus mst_bss) for
300 example. Since the minimal symbol info is sometimes derived from the
301 BFD library's view of a file, we need to live with what information bfd
304 enum minimal_symbol_type
306 mst_unknown = 0, /* Unknown type, the default */
307 mst_text, /* Generally executable instructions */
308 mst_data, /* Generally initialized data */
309 mst_bss, /* Generally uninitialized data */
310 mst_abs /* Generally absolute (nonrelocatable) */
315 #define MSYMBOL_INFO(msymbol) (msymbol)->info
316 #define MSYMBOL_TYPE(msymbol) (msymbol)->type
319 /* All of the name-scope contours of the program
320 are represented by `struct block' objects.
321 All of these objects are pointed to by the blockvector.
323 Each block represents one name scope.
324 Each lexical context has its own block.
326 The first two blocks in the blockvector are special.
327 The first one contains all the symbols defined in this compilation
328 whose scope is the entire program linked together.
329 The second one contains all the symbols whose scope is the
330 entire compilation excluding other separate compilations.
331 In C, these correspond to global symbols and static symbols.
333 Each block records a range of core addresses for the code that
334 is in the scope of the block. The first two special blocks
335 give, for the range of code, the entire range of code produced
336 by the compilation that the symbol segment belongs to.
338 The blocks appear in the blockvector
339 in order of increasing starting-address,
340 and, within that, in order of decreasing ending-address.
342 This implies that within the body of one function
343 the blocks appear in the order of a depth-first tree walk. */
347 /* Number of blocks in the list. */
349 /* The blocks themselves. */
350 struct block *block[1];
353 #define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
354 #define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
356 /* Special block numbers */
358 #define GLOBAL_BLOCK 0
359 #define STATIC_BLOCK 1
360 #define FIRST_LOCAL_BLOCK 2
365 /* Addresses in the executable code that are in this block.
366 Note: in an unrelocated symbol segment in a file,
367 these are always zero. They can be filled in from the
368 N_LBRAC and N_RBRAC symbols in the loader symbol table. */
373 /* The symbol that names this block,
374 if the block is the body of a function;
376 Note: In an unrelocated symbol segment in an object file,
377 this field may be zero even when the block has a name.
378 That is because the block is output before the name
379 (since the name resides in a higher block).
380 Since the symbol does point to the block (as its value),
381 it is possible to find the block and set its name properly. */
383 struct symbol *function;
385 /* The `struct block' for the containing block, or 0 if none.
386 Note that in an unrelocated symbol segment in an object file
387 this pointer may be zero when the correct value should be
388 the second special block (for symbols whose scope is one compilation).
389 This is because the compiler outputs the special blocks at the
390 very end, after the other blocks. */
392 struct block *superblock;
394 /* A flag indicating whether or not the function corresponding
395 to this block was compiled with gcc or not. If there is no
396 function corresponding to this block, this meaning of this flag
397 is undefined. (In practice it will be 1 if the block was created
398 while processing a file compiled with gcc and 0 when not). */
400 unsigned char gcc_compile_flag;
402 /* Number of local symbols. */
408 struct symbol *sym[1];
411 #define BLOCK_START(bl) (bl)->startaddr
412 #define BLOCK_END(bl) (bl)->endaddr
413 #define BLOCK_NSYMS(bl) (bl)->nsyms
414 #define BLOCK_SYM(bl, n) (bl)->sym[n]
415 #define BLOCK_FUNCTION(bl) (bl)->function
416 #define BLOCK_SUPERBLOCK(bl) (bl)->superblock
417 #define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag
419 /* Nonzero if symbols of block BL should be sorted alphabetically. */
421 #define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40)
424 /* Represent one symbol name; a variable, constant, function or typedef. */
426 /* For a non-global symbol allocated statically,
427 the correct core address cannot be determined by the compiler.
428 The compiler puts an index number into the symbol's value field.
429 This index number can be matched with the "desc" field of
430 an entry in the loader symbol table. */
432 /* Different name spaces for symbols. Looking up a symbol specifies a
433 namespace and ignores symbol definitions in other name spaces. */
437 /* UNDEF_NAMESPACE is used when a namespace has not been discovered or
438 none of the following apply. This usually indicates an error either
439 in the symbol information or in gdb's handling of symbols. */
443 /* VAR_NAMESPACE is the usual namespace. In C, this contains variables,
444 function names, typedef names and enum type values. */
448 /* STRUCT_NAMESPACE is used in C to hold struct, union and enum type names.
449 Thus, if `struct foo' is used in a C program, it produces a symbol named
450 `foo' in the STRUCT_NAMESPACE. */
454 /* LABEL_NAMESPACE may be used for names of labels (for gotos);
455 currently it is not used and labels are not recorded at all. */
460 /* An address-class says where to find the value of a symbol. */
464 /* Not used; catches errors */
468 /* Value is constant int SYMBOL_VALUE, host byteorder */
472 /* Value is at fixed address SYMBOL_VALUE_ADDRESS */
476 /* Value is in register */
480 /* Value is at spec'd offset in arglist */
484 /* Value address is at spec'd offset in arglist. */
488 /* Value is at spec'd offset in register window */
492 /* Value is at spec'd offset in stack frame */
496 /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace
497 STRUCT_NAMESPACE all have this class. */
501 /* Value is address SYMBOL_VALUE_ADDRESS in the code */
505 /* Value is address SYMBOL_VALUE_BLOCK of a `struct block'. Function names
510 /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_ADDRESS, in
511 target byte order. */
515 /* Value is arg at spec'd offset in stack frame. Differs from LOC_LOCAL in
516 that symbol is an argument; differs from LOC_ARG in that we find it
517 in the frame (FRAME_LOCALS_ADDRESS), not in the arglist
518 (FRAME_ARGS_ADDRESS). Added for i960, which passes args in regs then
528 /* The general symbol info required for all types of symbols. */
530 struct general_symbol_info ginfo;
532 /* Name space code. */
534 enum namespace namespace;
538 enum address_class class;
540 /* Data type of value */
544 /* Line number of definition. FIXME: Should we really make the assumption
545 that nobody will try to debug files longer than 64K lines? What about
546 machine generated programs? */
550 /* Some symbols require an additional value to be recorded on a per-
551 symbol basis. Stash those values here. */
555 /* for OP_BASEREG in DWARF location specs */
558 short regno_valid; /* 0 == regno invalid; !0 == regno valid */
559 short regno; /* base register number {0, 1, 2, ...} */
566 #define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
567 #define SYMBOL_CLASS(symbol) (symbol)->class
568 #define SYMBOL_TYPE(symbol) (symbol)->type
569 #define SYMBOL_LINE(symbol) (symbol)->line
570 #define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg.regno
572 /* This currently fails because some symbols are not being initialized
573 to zero on allocation, and no code is currently setting this value.
574 Basereg handling will probably change significantly in the next release.
578 #define SYMBOL_BASEREG_VALID(symbol) (symbol)->aux_value.basereg.regno_valid
580 #define SYMBOL_BASEREG_VALID(symbol) 0
584 /* A partial_symbol records the name, namespace, and address class of
585 symbols whose types we have not parsed yet. For functions, it also
586 contains their memory address, so we can find them from a PC value.
587 Each partial_symbol sits in a partial_symtab, all of which are chained
588 on a partial symtab list and which points to the corresponding
589 normal symtab once the partial_symtab has been referenced. */
591 struct partial_symbol
594 /* The general symbol info required for all types of symbols. */
596 struct general_symbol_info ginfo;
598 /* Name space code. */
600 enum namespace namespace;
602 /* Address class (for info_symbols) */
604 enum address_class class;
608 #define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace
609 #define PSYMBOL_CLASS(psymbol) (psymbol)->class
612 /* Source-file information. This describes the relation between source files,
613 ine numbers and addresses in the program text. */
617 int length; /* Number of source files described */
618 struct source *source[1]; /* Descriptions of the files */
621 /* Each item represents a line-->pc (or the reverse) mapping. This is
622 somewhat more wasteful of space than one might wish, but since only
623 the files which are actually debugged are read in to core, we don't
626 struct linetable_entry
635 struct linetable_entry item[1];
638 /* All the information on one source file. */
642 char *name; /* Name of file */
643 struct linetable contents;
646 /* How to relocate the symbols from each section in a symbol file.
647 Each struct contains an array of offsets.
648 The ordering and meaning of the offsets is file-type-dependent;
649 typically it is indexed by section numbers or symbol types or
652 To give us flexibility in changing the internal representation
653 of these offsets, the ANOFFSET macro must be used to insert and
654 extract offset values in the struct. */
656 struct section_offsets
658 CORE_ADDR offsets[1]; /* As many as needed. */
661 #define ANOFFSET(secoff, whichone) (secoff->offsets[whichone])
663 /* Each source file is represented by a struct symtab.
664 These objects are chained through the `next' field. */
669 /* Chain of all existing symtabs. */
673 /* List of all symbol scope blocks for this symtab. */
675 struct blockvector *blockvector;
677 /* Table mapping core addresses to line numbers for this file.
678 Can be NULL if none. */
680 struct linetable *linetable;
682 /* Name of this source file. */
686 /* Directory in which it was compiled, or NULL if we don't know. */
690 /* This component says how to free the data we point to:
691 free_contents => do a tree walk and free each object.
692 free_nothing => do nothing; some other symtab will free
693 the data this one uses.
694 free_linetable => free just the linetable. */
698 free_nothing, free_contents, free_linetable
702 /* Pointer to one block of storage to be freed, if nonzero. */
703 /* This is IN ADDITION to the action indicated by free_code. */
707 /* Total number of lines found in source file. */
711 /* Array mapping line number to character position. */
715 /* Language of this source file. */
717 enum language language;
719 /* String of version information. May be zero. */
723 /* Full name of file as found by searching the source path.
724 NULL if not yet known. */
728 /* Object file from which this symbol information was read. */
730 struct objfile *objfile;
732 /* Anything extra for this symtab. This is for target machines
733 with special debugging info of some sort (which cannot just
734 be represented in a normal symtab). */
736 #if defined (EXTRA_SYMTAB_INFO)
742 #define BLOCKVECTOR(symtab) (symtab)->blockvector
743 #define LINETABLE(symtab) (symtab)->linetable
746 /* Each source file that has not been fully read in is represented by
747 a partial_symtab. This contains the information on where in the
748 executable the debugging symbols for a specific file are, and a
749 list of names of global symbols which are located in this file.
750 They are all chained on partial symtab lists.
752 Even after the source file has been read into a symtab, the
753 partial_symtab remains around. They are allocated on an obstack,
754 psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks-
755 style execution of a bunch of .o's. */
757 struct partial_symtab
760 /* Chain of all existing partial symtabs. */
762 struct partial_symtab *next;
764 /* Name of the source file which this partial_symtab defines */
768 /* Information about the object file from which symbols should be read. */
770 struct objfile *objfile;
772 /* Set of relocation offsets to apply to each section. */
774 struct section_offsets *section_offsets;
776 /* Range of text addresses covered by this file; texthigh is the
777 beginning of the next section. */
782 /* Array of pointers to all of the partial_symtab's which this one
783 depends on. Since this array can only be set to previous or
784 the current (?) psymtab, this dependency tree is guaranteed not
785 to have any loops. */
787 struct partial_symtab **dependencies;
789 int number_of_dependencies;
791 /* Global symbol list. This list will be sorted after readin to
792 improve access. Binary search will be the usual method of
793 finding a symbol within it. globals_offset is an integer offset
794 within global_psymbols[]. */
799 /* Static symbol list. This list will *not* be sorted after readin;
800 to find a symbol in it, exhaustive search must be used. This is
801 reasonable because searches through this list will eventually
802 lead to either the read in of a files symbols for real (assumed
803 to take a *lot* of time; check) or an error (and we don't care
804 how long errors take). This is an offset and size within
805 static_psymbols[]. */
810 /* Pointer to symtab eventually allocated for this source file, 0 if
811 !readin or if we haven't looked for the symtab after it was readin. */
813 struct symtab *symtab;
815 /* Pointer to function which will read in the symtab corresponding to
818 void (*read_symtab) PARAMS ((struct partial_symtab *));
820 /* Information that lets read_symtab() locate the part of the symbol table
821 that this psymtab corresponds to. This information is private to the
822 format-dependent symbol reading routines. For further detail examine
823 the various symbol reading modules. Should really be (void *) but is
824 (char *) as with other such gdb variables. (FIXME) */
826 char *read_symtab_private;
828 /* Non-zero if the symtab corresponding to this psymtab has been readin */
830 unsigned char readin;
833 /* A fast way to get from a psymtab to its symtab (after the first time). */
834 #define PSYMTAB_TO_SYMTAB(pst) \
835 ((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst))
838 /* The virtual function table is now an array of structures which have the
839 form { int16 offset, delta; void *pfn; }.
841 In normal virtual function tables, OFFSET is unused.
842 DELTA is the amount which is added to the apparent object's base
843 address in order to point to the actual object to which the
844 virtual function should be applied.
845 PFN is a pointer to the virtual function. */
847 #define VTBL_FNADDR_OFFSET 2
849 /* Macro that yields non-zero value iff NAME is the prefix for C++ operator
850 names. If you leave out the parenthesis here you will lose!
851 Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the
852 symbol-file and the names in gdb's symbol table. */
854 #define OPNAME_PREFIX_P(NAME) \
855 ((NAME)[0] == 'o' && (NAME)[1] == 'p' && (NAME)[2] == CPLUS_MARKER)
857 #define VTBL_PREFIX_P(NAME) \
858 ((NAME)[3] == CPLUS_MARKER && !strncmp ((NAME), "_vt", 3))
861 /* External variables and functions for the objects described above. */
863 /* This symtab variable specifies the current file for printing source lines */
865 extern struct symtab *current_source_symtab;
867 /* This is the next line to print for listing source lines. */
869 extern int current_source_line;
871 /* See the comment in symfile.c about how current_objfile is used. */
873 extern struct objfile *current_objfile;
875 extern struct symtab *
876 lookup_symtab PARAMS ((char *));
878 extern struct symbol *
879 lookup_symbol PARAMS ((const char *, const struct block *,
880 const enum namespace, int *, struct symtab **));
882 extern struct symbol *
883 lookup_block_symbol PARAMS ((const struct block *, const char *,
884 const enum namespace));
887 lookup_struct PARAMS ((char *, struct block *));
890 lookup_union PARAMS ((char *, struct block *));
893 lookup_enum PARAMS ((char *, struct block *));
895 extern struct symbol *
896 block_function PARAMS ((struct block *));
898 extern struct symbol *
899 find_pc_function PARAMS ((CORE_ADDR));
902 find_pc_partial_function PARAMS ((CORE_ADDR, char **, CORE_ADDR *));
905 clear_pc_function_cache PARAMS ((void));
907 extern struct partial_symtab *
908 lookup_partial_symtab PARAMS ((char *));
910 extern struct partial_symtab *
911 find_pc_psymtab PARAMS ((CORE_ADDR));
913 extern struct symtab *
914 find_pc_symtab PARAMS ((CORE_ADDR));
916 extern struct partial_symbol *
917 find_pc_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR));
920 find_pc_line_pc_range PARAMS ((CORE_ADDR, CORE_ADDR *, CORE_ADDR *));
923 contained_in PARAMS ((struct block *, struct block *));
926 reread_symbols PARAMS ((void));
928 /* Functions for dealing with the minimal symbol table, really a misc
929 address<->symbol mapping for things we don't have debug symbols for. */
932 prim_record_minimal_symbol PARAMS ((const char *, CORE_ADDR,
933 enum minimal_symbol_type));
936 prim_record_minimal_symbol_and_info PARAMS ((const char *, CORE_ADDR,
937 enum minimal_symbol_type,
940 extern struct minimal_symbol *
941 lookup_minimal_symbol PARAMS ((const char *, struct objfile *));
943 extern struct minimal_symbol *
944 lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR));
947 init_minimal_symbol_collection PARAMS ((void));
950 discard_minimal_symbols PARAMS ((int));
953 install_minimal_symbols PARAMS ((struct objfile *));
955 struct symtab_and_line
957 struct symtab *symtab;
963 struct symtabs_and_lines
965 struct symtab_and_line *sals;
969 /* Given a pc value, return line number it is in. Second arg nonzero means
970 if pc is on the boundary use the previous statement's line number. */
972 extern struct symtab_and_line
973 find_pc_line PARAMS ((CORE_ADDR, int));
975 /* Given a symtab and line number, return the pc there. */
978 find_line_pc PARAMS ((struct symtab *, int));
981 find_line_pc_range PARAMS ((struct symtab *, int, CORE_ADDR *, CORE_ADDR *));
984 resolve_sal_pc PARAMS ((struct symtab_and_line *));
986 /* Given a string, return the line specified by it. For commands like "list"
989 extern struct symtabs_and_lines
990 decode_line_spec PARAMS ((char *, int));
992 extern struct symtabs_and_lines
993 decode_line_spec_1 PARAMS ((char *, int));
995 extern struct symtabs_and_lines
996 decode_line_1 PARAMS ((char **, int, struct symtab *, int));
1000 #if MAINTENANCE_CMDS
1003 maintenance_print_symbols PARAMS ((char *, int));
1006 maintenance_print_psymbols PARAMS ((char *, int));
1009 maintenance_print_msymbols PARAMS ((char *, int));
1012 maintenance_print_objfiles PARAMS ((char *, int));
1017 free_symtab PARAMS ((struct symtab *));
1019 /* Symbol-reading stuff in symfile.c and solib.c. */
1021 extern struct symtab *
1022 psymtab_to_symtab PARAMS ((struct partial_symtab *));
1025 clear_solib PARAMS ((void));
1027 extern struct objfile *
1028 symbol_file_add PARAMS ((char *, int, CORE_ADDR, int, int, int));
1033 identify_source_line PARAMS ((struct symtab *, int, int));
1036 print_source_lines PARAMS ((struct symtab *, int, int, int));
1039 forget_cached_source_info PARAMS ((void));
1042 select_source_symtab PARAMS ((struct symtab *));
1045 make_symbol_completion_list PARAMS ((char *));
1050 clear_symtab_users_once PARAMS ((void));
1052 extern struct partial_symtab *
1053 find_main_psymtab PARAMS ((void));
1057 extern struct blockvector *
1058 blockvector_for_pc PARAMS ((CORE_ADDR, int *));
1062 extern enum language
1063 deduce_language_from_filename PARAMS ((char *));
1065 #endif /* !defined(SYMTAB_H) */