1 /* Symbol table definitions for GDB.
2 Copyright (C) 1986, 1989, 1991 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)
24 /* An obstack to hold objects that should be freed
25 when we load a new symbol table.
26 This includes the symbols made by dbxread
27 and the types that are not permanent. */
29 extern struct obstack *symbol_obstack;
30 extern struct obstack *psymbol_obstack;
32 /* Some definitions and declarations to go with use of obstacks. */
33 #define obstack_chunk_alloc xmalloc
34 #define obstack_chunk_free free
36 /* Some macros for char-based bitfields. */
37 #define B_SET(a,x) (a[x>>3] |= (1 << (x&7)))
38 #define B_CLR(a,x) (a[x>>3] &= ~(1 << (x&7)))
39 #define B_TST(a,x) (a[x>>3] & (1 << (x&7)))
40 #define B_TYPE unsigned char
41 #define B_BYTES(x) ( 1 + ((x)>>3) )
42 #define B_CLRALL(a,x) bzero (a, B_BYTES(x))
44 /* gdb can know one or several symbol tables at the same time;
45 the ultimate intent is to have one for each separately-compiled module.
46 Each such symbol table is recorded by a struct symtab, and they
47 are all chained together. */
49 /* In addition, gdb can record any number of miscellaneous undebuggable
50 functions' addresses. In a system that appends _ to function names,
51 the _'s are removed from the names stored in this table. */
53 /* Actually, the misc function list is used to store *all* of the
54 global symbols (text, data, bss, and abs). It is sometimes used
55 to figure out what symtabs to read in. The "type" field is used
56 occasionally. Calling it the misc "function" vector is now a misnomer.
58 The misc_info field is available for machine-specific information
59 that can be cached along with a misc function vector entry. The
60 AMD 29000 tdep.c uses it to remember things it has decoded from the
61 instructions in the function header, so it doesn't have to rederive
62 the info constantly (over a serial line). It is initialized to zero
63 and stays that way until target-dependent code sets it. */
65 enum misc_function_type {mf_unknown = 0, mf_text, mf_data, mf_bss, mf_abs};
71 char *misc_info; /* Random pointer to misc info. void * but for old C */
72 enum misc_function_type type;
75 /* Address and length of the vector recording all misc function names/addresses. */
77 struct misc_function *misc_function_vector;
78 int misc_function_count;
80 /* Different kinds of data types are distinguished by the `code' field. */
84 TYPE_CODE_UNDEF, /* Not used; catches errors */
85 TYPE_CODE_PTR, /* Pointer type */
86 TYPE_CODE_ARRAY, /* Array type, lower bound zero */
87 TYPE_CODE_STRUCT, /* C struct or Pascal record */
88 TYPE_CODE_UNION, /* C union or Pascal variant part */
89 TYPE_CODE_ENUM, /* Enumeration type */
90 TYPE_CODE_FUNC, /* Function type */
91 TYPE_CODE_INT, /* Integer type */
92 TYPE_CODE_FLT, /* Floating type */
93 TYPE_CODE_VOID, /* Void type (values zero length) */
94 TYPE_CODE_SET, /* Pascal sets */
95 TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */
96 TYPE_CODE_PASCAL_ARRAY, /* Array with explicit type of index */
97 TYPE_CODE_ERROR, /* Unknown type */
100 TYPE_CODE_MEMBER, /* Member type */
101 TYPE_CODE_METHOD, /* Method type */
102 TYPE_CODE_REF, /* C++ Reference types */
105 TYPE_CODE_CHAR, /* *real* character type */
106 TYPE_CODE_BOOL /* Builtin Modula-2 BOOLEAN */
109 /* This appears in a type's flags word for an unsigned integer type. */
110 #define TYPE_FLAG_UNSIGNED 1
111 /* This appears in a type's flags word
112 if it is a (pointer to a|function returning a)* built in scalar type.
113 These types are never freed. */
114 #define TYPE_FLAG_PERM 4
115 /* This appears in a type's flags word if it is a stub type (eg. if
116 someone referenced a type that wasn't definined in a source file
117 via (struct sir_not_appearing_in_this_film *)). */
118 #define TYPE_FLAG_STUB 8
122 /* Code for kind of type */
124 /* Name of this type, or zero if none.
125 This is used for printing only, except by poorly designed C++ code.
126 Type names specified as input are defined by symbols. */
128 /* Length in bytes of storage for a value of this type */
130 /* For a pointer type, describes the type of object pointed to.
131 For an array type, describes the type of the elements.
132 For a function or method type, describes the type of the value.
133 For a range type, describes the type of the full range.
135 struct type *target_type;
137 /* Type that is a pointer to this type.
138 Zero if no such pointer-to type is known yet.
139 The debugger may add the address of such a type
140 if it has to construct one later. */
141 struct type *pointer_type;
142 /* C++: also need a reference type. */
143 struct type *reference_type;
144 /* Type that is a function returning this type.
145 Zero if no such function type is known here.
146 The debugger may add the address of such a type
147 if it has to construct one later. */
148 struct type *function_type;
150 /* Flags about this type. */
152 /* Number of fields described for this type */
154 /* For structure and union types, a description of each field.
155 For set and pascal array types, there is one "field",
156 whose type is the domain type of the set or array.
157 For range types, there are two "fields",
158 the minimum and maximum values (both inclusive).
159 For enum types, each possible value is described by one "field".
161 Using a pointer to a separate array of fields
162 allows all types to have the same size, which is useful
163 because we can allocate the space for a type before
164 we know what to put in it. */
167 /* Position of this field, counting in bits from start of
168 containing structure. For a function type, this is the
169 position in the argument list of this argument.
170 For a range bound or enum value, this is the value itself. */
172 /* Size of this field, in bits, or zero if not packed.
173 For an unpacked field, the field's type's length
174 says how many bytes the field occupies. */
176 /* In a struct or enum type, type of this field.
177 In a function type, type of this argument.
178 In an array type, the domain-type of the array. */
180 /* Name of field, value or argument.
181 Zero for range bounds and array domains. */
185 /* For types with virtual functions, VPTR_BASETYPE is the base class which
186 defined the virtual function table pointer. VPTR_FIELDNO is
187 the field number of that pointer in the structure.
189 For types that are pointer to member types, VPTR_BASETYPE
190 is the type that this pointer is a member of.
193 struct type *vptr_basetype;
197 /* Slot to point to additional language-specific fields of this type. */
200 /* ARG_TYPES is for TYPE_CODE_METHOD and TYPE_CODE_FUNCTION. */
201 struct type **arg_types;
202 /* CPLUS_STUFF is for TYPE_CODE_STRUCT. */
203 struct cplus_struct_type *cplus_stuff;
207 /* C++ language-specific information for TYPE_CODE_STRUCT and TYPE_CODE_UNION
209 struct cplus_struct_type
211 B_TYPE *virtual_field_bits; /* if base class is virtual */
212 B_TYPE *private_field_bits;
213 B_TYPE *protected_field_bits;
215 /* Number of methods described for this type */
217 /* Number of base classes this type derives from. */
220 /* Number of methods described for this type plus all the
221 methods that it derives from. */
222 int nfn_fields_total;
224 /* For classes, structures, and unions, a description of each field,
225 which consists of an overloaded name, followed by the types of
226 arguments that the method expects, and then the name after it
227 has been renamed to make it distinct. */
230 /* The overloaded name. */
232 /* The number of methods with this name. */
234 /* The list of methods. */
237 /* The return value of the method */
239 /* The argument list */
241 /* The name after it has been processed */
244 /* For virtual functions. */
245 /* First baseclass that defines this virtual function. */
246 struct type *fcontext;
247 unsigned int is_const : 1;
248 unsigned int is_volatile : 1;
249 unsigned int is_private : 1;
250 unsigned int is_protected : 1;
251 unsigned int is_stub : 1;
252 unsigned int dummy : 3;
254 /* Index into that baseclass's virtual function table,
255 minus 2; else if static: VOFFSET_STATIC; else: 0. */
256 unsigned voffset : 24;
257 # define VOFFSET_STATIC 1
262 unsigned char via_protected;
263 unsigned char via_public;
266 /* All of the name-scope contours of the program
267 are represented by `struct block' objects.
268 All of these objects are pointed to by the blockvector.
270 Each block represents one name scope.
271 Each lexical context has its own block.
273 The first two blocks in the blockvector are special.
274 The first one contains all the symbols defined in this compilation
275 whose scope is the entire program linked together.
276 The second one contains all the symbols whose scope is the
277 entire compilation excluding other separate compilations.
278 In C, these correspond to global symbols and static symbols.
280 Each block records a range of core addresses for the code that
281 is in the scope of the block. The first two special blocks
282 give, for the range of code, the entire range of code produced
283 by the compilation that the symbol segment belongs to.
285 The blocks appear in the blockvector
286 in order of increasing starting-address,
287 and, within that, in order of decreasing ending-address.
289 This implies that within the body of one function
290 the blocks appear in the order of a depth-first tree walk. */
294 /* Number of blocks in the list. */
296 /* The blocks themselves. */
297 struct block *block[1];
300 /* Special block numbers */
301 #define GLOBAL_BLOCK 0
302 #define STATIC_BLOCK 1
303 #define FIRST_LOCAL_BLOCK 2
307 /* Addresses in the executable code that are in this block.
308 Note: in an unrelocated symbol segment in a file,
309 these are always zero. They can be filled in from the
310 N_LBRAC and N_RBRAC symbols in the loader symbol table. */
311 CORE_ADDR startaddr, endaddr;
312 /* The symbol that names this block,
313 if the block is the body of a function;
315 Note: In an unrelocated symbol segment in an object file,
316 this field may be zero even when the block has a name.
317 That is because the block is output before the name
318 (since the name resides in a higher block).
319 Since the symbol does point to the block (as its value),
320 it is possible to find the block and set its name properly. */
321 struct symbol *function;
322 /* The `struct block' for the containing block, or 0 if none. */
323 /* Note that in an unrelocated symbol segment in an object file
324 this pointer may be zero when the correct value should be
325 the second special block (for symbols whose scope is one compilation).
326 This is because the compiler ouptuts the special blocks at the
327 very end, after the other blocks. */
328 struct block *superblock;
329 /* A flag indicating whether or not the fucntion corresponding
330 to this block was compiled with gcc or not. If there is no
331 function corresponding to this block, this meaning of this flag
332 is undefined. (In practice it will be 1 if the block was created
333 while processing a file compiled with gcc and 0 when not). */
334 unsigned char gcc_compile_flag;
335 /* Number of local symbols. */
338 struct symbol *sym[1];
341 /* Represent one symbol name; a variable, constant, function or typedef. */
343 /* Different name spaces for symbols. Looking up a symbol specifies
344 a namespace and ignores symbol definitions in other name spaces.
346 VAR_NAMESPACE is the usual namespace.
347 In C, this contains variables, function names, typedef names
348 and enum type values.
350 STRUCT_NAMESPACE is used in C to hold struct, union and enum type names.
351 Thus, if `struct foo' is used in a C program,
352 it produces a symbol named `foo' in the STRUCT_NAMESPACE.
354 LABEL_NAMESPACE may be used for names of labels (for gotos);
355 currently it is not used and labels are not recorded at all. */
357 /* For a non-global symbol allocated statically,
358 the correct core address cannot be determined by the compiler.
359 The compiler puts an index number into the symbol's value field.
360 This index number can be matched with the "desc" field of
361 an entry in the loader symbol table. */
365 UNDEF_NAMESPACE, VAR_NAMESPACE, STRUCT_NAMESPACE, LABEL_NAMESPACE
368 /* An address-class says where to find the value of a symbol. */
372 LOC_UNDEF, /* Not used; catches errors */
373 LOC_CONST, /* Value is constant int SYMBOL_VALUE, host byteorder */
374 LOC_STATIC, /* Value is at fixed address SYMBOL_VALUE_ADDRESS */
375 LOC_REGISTER, /* Value is in register */
376 LOC_ARG, /* Value is at spec'd offset in arglist */
377 LOC_REF_ARG, /* Value address is at spec'd offset in arglist. */
378 LOC_REGPARM, /* Value is at spec'd offset in register window */
379 LOC_LOCAL, /* Value is at spec'd offset in stack frame */
380 LOC_TYPEDEF, /* Value not used; definition in SYMBOL_TYPE
381 Symbols in the namespace STRUCT_NAMESPACE
382 all have this class. */
383 LOC_LABEL, /* Value is address SYMBOL_VALUE_ADDRESS in the code */
384 LOC_BLOCK, /* Value is address SYMBOL_VALUE_BLOCK of a
385 `struct block'. Function names have this class. */
386 LOC_CONST_BYTES, /* Value is a constant byte-sequence pointed to by
387 SYMBOL_VALUE_ADDRESS, in target byte order. */
388 LOC_LOCAL_ARG /* Value is arg at spec'd offset in stack frame.
389 Differs from LOC_LOCAL in that symbol is an
390 argument; differs from LOC_ARG in that we find it
391 in the frame (FRAME_LOCALS_ADDRESS), not in the
392 arglist (FRAME_ARGS_ADDRESS). Added for i960,
393 which passes args in regs then copies to frame. */
400 /* Name space code. */
401 enum namespace namespace;
403 enum address_class class;
404 /* Data type of value */
407 /* Line number of definition. */
410 /* constant value, or address if static, or register number,
411 or offset in arguments, or offset in stack frame. All of
412 these are in host byte order (though what they point to might
413 be in target byte order, e.g. LOC_CONST_BYTES). */
416 long value; /* for LOC_CONST, LOC_REGISTER, LOC_ARG,
417 LOC_REF_ARG, LOC_REGPARM, LOC_LOCAL */
418 struct block *block; /* for LOC_BLOCK */
419 char *bytes; /* for LOC_CONST_BYTES */
420 CORE_ADDR address; /* for LOC_STATIC, LOC_LABEL */
421 struct symbol *chain; /* for opaque typedef struct chain */
427 /* A partial_symbol records the name, namespace, and address class of
428 symbols whose types we have not parsed yet. For functions, it also
429 contains their memory address, so we can find them from a PC value.
430 Each partial_symbol sits in a partial_symtab, all of which are chained
431 on the partial_symtab_list and which points to the corresponding
432 normal symtab once the partial_symtab has been referenced. */
434 struct partial_symbol
438 /* Name space code. */
439 enum namespace namespace;
440 /* Address class (for info_symbols) */
441 enum address_class class;
442 /* Value (only used for static functions currently). Done this
443 way so that we can use the struct symbol macros.
444 Note that the address of a function is SYMBOL_VALUE_ADDRESS (pst)
445 in a partial symbol table, but BLOCK_START (SYMBOL_BLOCK_VALUE (st))
446 in a symbol table. */
455 /* Source-file information.
456 This describes the relation between source files and line numbers
457 and addresses in the program text. */
461 int length; /* Number of source files described */
462 struct source *source[1]; /* Descriptions of the files */
465 /* Each item represents a line-->pc (or the reverse) mapping. This is
466 somewhat more wasteful of space than one might wish, but since only
467 the files which are actually debugged are read in to core, we don't
470 Each item used to be an int; either minus a line number, or a
471 program counter. If it represents a line number, that is the line
472 described by the next program counter value. If it is positive, it
473 is the program counter at which the code for the next line starts. */
475 struct linetable_entry
484 struct linetable_entry item[1];
487 /* All the information on one source file. */
491 char *name; /* Name of file */
492 struct linetable contents;
495 /* Each source file is represented by a struct symtab.
496 These objects are chained through the `next' field. */
500 /* Chain of all existing symtabs. */
502 /* List of all symbol scope blocks for this symtab. */
503 struct blockvector *blockvector;
504 /* Table mapping core addresses to line numbers for this file.
505 Can be NULL if none. */
506 struct linetable *linetable;
507 /* Name of this source file. */
509 /* Directory in which it was compiled, or NULL if we don't know. */
511 /* This component says how to free the data we point to:
512 free_contents => do a tree walk and free each object.
513 free_nothing => do nothing; some other symtab will free
514 the data this one uses.
515 free_linetable => free just the linetable. */
516 enum free_code {free_nothing, free_contents, free_linetable}
518 /* Pointer to one block of storage to be freed, if nonzero. */
519 /* This is IN ADDITION to the action indicated by free_code. */
521 /* Total number of lines found in source file. */
523 /* Array mapping line number to character position. */
525 /* Language of this source file. */
526 enum language language;
527 /* String of version information. May be zero. */
529 /* Full name of file as found by searching the source path.
530 0 if not yet known. */
533 /* Object file from which this symbol information was read. */
534 struct objfile *objfile;
535 /* Chain of all symtabs owned by that objfile. */
536 struct symtab *objfile_chain;
538 /* Anything extra for this symtab. This is for target machines
539 with special debugging info of some sort (which cannot just
540 be represented in a normal symtab). */
541 #if defined (EXTRA_SYMTAB_INFO)
546 /* Each source file that has not been fully read in is represented by
547 a partial_symtab. This contains the information on where in the
548 executable the debugging symbols for a specific file are, and a
549 list of names of global symbols which are located in this file.
550 They are all chained on partial_symtab_list.
552 Even after the source file has been read into a symtab, the
553 partial_symtab remains around. They are allocated on an obstack,
554 psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks-
555 style execution of a bunch of .o's. */
556 struct partial_symtab
558 /* Chain of all existing partial symtabs. */
559 struct partial_symtab *next;
560 /* Name of the source file which this partial_symtab defines */
563 /* Information about the object file from which symbols should be read. */
564 struct objfile *objfile;
565 /* Chain of psymtabs owned by this objfile */
566 struct partial_symtab *objfile_chain;
568 /* Address relative to which the symbols in this file are. Need to
569 relocate by this amount when reading in symbols from the symbol
572 /* Range of text addresses covered by this file; texthigh is the
573 beginning of the next section. */
574 CORE_ADDR textlow, texthigh;
575 /* Array of pointers to all of the partial_symtab's which this one
576 depends on. Since this array can only be set to previous or
577 the current (?) psymtab, this dependency tree is guaranteed not
578 to have any loops. */
579 struct partial_symtab **dependencies;
580 int number_of_dependencies;
581 /* Global symbol list. This list will be sorted after readin to
582 improve access. Binary search will be the usual method of
583 finding a symbol within it. globals_offset is an integer offset
584 within global_psymbols[]. */
585 int globals_offset, n_global_syms;
586 /* Static symbol list. This list will *not* be sorted after readin;
587 to find a symbol in it, exhaustive search must be used. This is
588 reasonable because searches through this list will eventually
589 lead to either the read in of a files symbols for real (assumed
590 to take a *lot* of time; check) or an error (and we don't care
591 how long errors take). This is an offset and size within
592 static_psymbols[]. */
593 int statics_offset, n_static_syms;
594 /* Pointer to symtab eventually allocated for this source file, 0 if
595 !readin or if we haven't looked for the symtab after it was readin. */
596 struct symtab *symtab;
597 /* Pointer to function which will read in the symtab corresponding to
599 void (*read_symtab) ();
600 /* Information that lets read_symtab() locate the part of the symbol table
601 that this psymtab corresponds to. This information is private to the
602 format-dependent symbol reading routines. For further detail examine
603 the various symbol reading modules. Should really be (void *) but is
604 (char *) as with other such gdb variables. (FIXME) */
605 char *read_symtab_private;
606 /* Non-zero if the symtab corresponding to this psymtab has been
608 unsigned char readin;
611 /* A fast way to get from a psymtab to its symtab (after the first time). */
612 #define PSYMTAB_TO_SYMTAB(pst) ((pst)->symtab? \
614 psymtab_to_symtab (pst) )
616 /* This is the list of struct symtab's that gdb considers current. */
618 struct symtab *symtab_list;
620 /* This is the list of struct partial_symtab's that gdb may need to access */
622 struct partial_symtab *partial_symtab_list;
624 /* This symtab variable specifies the current file for printing source lines */
626 struct symtab *current_source_symtab;
628 /* This is the next line to print for listing source lines. */
630 int current_source_line;
632 #define BLOCKVECTOR(symtab) (symtab)->blockvector
634 #define LINETABLE(symtab) (symtab)->linetable
636 /* Macros normally used to access components of symbol table structures. */
638 #define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
639 #define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
641 #define BLOCK_START(bl) (bl)->startaddr
642 #define BLOCK_END(bl) (bl)->endaddr
643 #define BLOCK_NSYMS(bl) (bl)->nsyms
644 #define BLOCK_SYM(bl, n) (bl)->sym[n]
645 #define BLOCK_FUNCTION(bl) (bl)->function
646 #define BLOCK_SUPERBLOCK(bl) (bl)->superblock
647 #define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag
649 /* Nonzero if symbols of block BL should be sorted alphabetically. */
650 #define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40)
652 #define SYMBOL_NAME(symbol) (symbol)->name
653 #define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
654 #define SYMBOL_CLASS(symbol) (symbol)->class
655 #define SYMBOL_VALUE(symbol) (symbol)->value.value
656 #define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->value.address
657 #define SYMBOL_VALUE_BYTES(symbol) (symbol)->value.bytes
658 #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->value.block
659 #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->value.chain
660 #define SYMBOL_TYPE(symbol) (symbol)->type
661 #define SYMBOL_LINE(symbol) (symbol)->line
663 #define TYPE_NAME(thistype) (thistype)->name
664 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
665 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
666 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
667 #define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
668 #define TYPE_LENGTH(thistype) (thistype)->length
669 #define TYPE_FLAGS(thistype) (thistype)->flags
670 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
671 #define TYPE_CODE(thistype) (thistype)->code
672 #define TYPE_NFIELDS(thistype) (thistype)->nfields
673 #define TYPE_FIELDS(thistype) (thistype)->fields
675 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
676 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
677 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
678 #define TYPE_FN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fields
679 #define TYPE_NFN_FIELDS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields
680 #define TYPE_NFN_FIELDS_TOTAL(thistype) TYPE_CPLUS_SPECIFIC(thistype)->nfn_fields_total
681 #define TYPE_TYPE_SPECIFIC(thistype) (thistype)->type_specific
682 #define TYPE_ARG_TYPES(thistype) (thistype)->type_specific.arg_types
683 #define TYPE_CPLUS_SPECIFIC(thistype) (thistype)->type_specific.cplus_stuff
684 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
685 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
686 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
687 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
688 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
689 #define BASETYPE_VIA_VIRTUAL(thistype, index) \
690 B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (index))
692 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
693 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
694 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
695 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
696 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
697 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
698 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
700 #define TYPE_FIELD_PRIVATE_BITS(thistype) \
701 TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits
702 #define TYPE_FIELD_PROTECTED_BITS(thistype) \
703 TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits
704 #define TYPE_FIELD_VIRTUAL_BITS(thistype) \
705 TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits
706 #define SET_TYPE_FIELD_PRIVATE(thistype, n) \
707 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
708 #define SET_TYPE_FIELD_PROTECTED(thistype, n) \
709 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
710 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) \
711 B_SET (TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
712 #define TYPE_FIELD_PRIVATE(thistype, n) \
713 B_TST(TYPE_CPLUS_SPECIFIC(thistype)->private_field_bits, (n))
714 #define TYPE_FIELD_PROTECTED(thistype, n) \
715 B_TST(TYPE_CPLUS_SPECIFIC(thistype)->protected_field_bits, (n))
716 #define TYPE_FIELD_VIRTUAL(thistype, n) \
717 B_TST(TYPE_CPLUS_SPECIFIC(thistype)->virtual_field_bits, (n))
719 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
720 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
722 #define TYPE_FN_FIELDLISTS(thistype) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists
723 #define TYPE_FN_FIELDLIST(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n]
724 #define TYPE_FN_FIELDLIST1(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].fn_fields
725 #define TYPE_FN_FIELDLIST_NAME(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].name
726 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) TYPE_CPLUS_SPECIFIC(thistype)->fn_fieldlists[n].length
728 #define TYPE_FN_FIELD(thisfn, n) (thisfn)[n]
729 #define TYPE_FN_FIELD_NAME(thisfn, n) (thisfn)[n].name
730 #define TYPE_FN_FIELD_TYPE(thisfn, n) (thisfn)[n].type
731 #define TYPE_FN_FIELD_ARGS(thisfn, n) TYPE_ARG_TYPES ((thisfn)[n].type)
732 #define TYPE_FN_FIELD_PHYSNAME(thisfn, n) (thisfn)[n].physname
733 #define TYPE_FN_FIELD_VIRTUAL_P(thisfn, n) ((thisfn)[n].voffset > 1)
734 #define TYPE_FN_FIELD_STATIC_P(thisfn, n) ((thisfn)[n].voffset == VOFFSET_STATIC)
735 #define TYPE_FN_FIELD_VOFFSET(thisfn, n) ((thisfn)[n].voffset-2)
736 #define TYPE_FN_FIELD_FCONTEXT(thisfn, n) ((thisfn)[n].fcontext)
737 #define TYPE_FN_FIELD_STUB(thisfn, n) ((thisfn)[n].is_stub)
738 #define TYPE_FN_FIELD_PRIVATE(thisfn, n) ((thisfn)[n].is_private)
739 #define TYPE_FN_FIELD_PROTECTED(thisfn, n) ((thisfn)[n].is_protected)
741 /* The virtual function table is now an array of structures
742 which have the form { int16 offset, delta; void *pfn; }.
744 In normal virtual function tables, OFFSET is unused.
745 DELTA is the amount which is added to the apparent object's base
746 address in order to point to the actual object to which the
747 virtual function should be applied.
748 PFN is a pointer to the virtual function. */
750 #define VTBL_FNADDR_OFFSET 2
752 /* Macro that yields non-zero value iff NAME is the prefix
753 for C++ operator names. If you leave out the parenthesis
756 Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the
757 symbol-file and the names in gdb's symbol table. */
758 #define OPNAME_PREFIX_P(NAME) ((NAME)[0] == 'o' && (NAME)[1] == 'p' \
759 && (NAME)[2] == CPLUS_MARKER)
761 #define VTBL_PREFIX_P(NAME) ((NAME)[3] == CPLUS_MARKER \
762 && !strncmp ((NAME), "_vt", 3))
764 /* Functions that work on the objects described above */
766 extern struct symtab *lookup_symtab ();
767 extern struct symbol *lookup_symbol ();
768 extern struct symbol *lookup_block_symbol ();
769 extern int lookup_misc_func ();
770 extern void check_stub_type ();
771 extern void check_stub_method ();
772 extern struct type *lookup_primitive_typename ();
773 extern struct type *lookup_typename ();
774 extern struct type *lookup_unsigned_typename ();
775 extern struct type *lookup_struct ();
776 extern struct type *lookup_union ();
777 extern struct type *lookup_enum ();
778 extern struct type *lookup_struct_elt_type ();
779 extern struct type *lookup_pointer_type ();
780 extern struct type *lookup_function_type ();
781 extern struct type *create_array_type ();
782 extern struct symbol *block_function ();
783 extern struct symbol *find_pc_function ();
784 extern int find_pc_partial_function ();
785 extern void clear_pc_function_cache ();
786 extern struct partial_symtab *lookup_partial_symtab ();
787 extern struct partial_symtab *find_pc_psymtab ();
788 extern struct symtab *find_pc_symtab ();
789 extern struct partial_symbol *find_pc_psymbol ();
790 extern int find_pc_misc_function ();
791 extern int find_pc_line_pc_range ();
792 extern char *type_name_no_tag ();
793 extern int contained_in();
796 extern struct type *lookup_template_type ();
797 extern struct type *lookup_reference_type ();
798 extern struct type *lookup_member_type ();
799 extern void smash_to_method_type ();
800 void smash_to_member_type (
802 struct type *, struct type *, struct type *
805 extern struct type *allocate_stub_method ();
806 /* end of C++ stuff. */
808 extern void reread_symbols ();
810 extern struct type *builtin_type_void;
811 extern struct type *builtin_type_char;
812 extern struct type *builtin_type_short;
813 extern struct type *builtin_type_int;
814 extern struct type *builtin_type_long;
815 extern struct type *builtin_type_unsigned_char;
816 extern struct type *builtin_type_unsigned_short;
817 extern struct type *builtin_type_unsigned_int;
818 extern struct type *builtin_type_unsigned_long;
819 extern struct type *builtin_type_float;
820 extern struct type *builtin_type_double;
821 extern struct type *builtin_type_long_double;
822 extern struct type *builtin_type_complex;
823 extern struct type *builtin_type_double_complex;
824 /* This type represents a type that was unrecognized in symbol
826 extern struct type *builtin_type_error;
828 extern struct type *builtin_type_long_long;
829 extern struct type *builtin_type_unsigned_long_long;
832 extern struct type *builtin_type_m2_char;
833 extern struct type *builtin_type_m2_int;
834 extern struct type *builtin_type_m2_card;
835 extern struct type *builtin_type_m2_real;
836 extern struct type *builtin_type_m2_bool;
838 /* LONG_LONG is defined if the host has "long long". */
840 #define BUILTIN_TYPE_LONGEST builtin_type_long_long
841 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long_long
842 /* This should not be a typedef, because "unsigned LONGEST" needs
844 #define LONGEST long long
846 #else /* not LONG_LONG. */
848 #define BUILTIN_TYPE_LONGEST builtin_type_long
849 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long
852 #endif /* not LONG_LONG. */
854 struct symtab_and_line
856 struct symtab *symtab;
862 struct symtabs_and_lines
864 struct symtab_and_line *sals;
868 /* Given a pc value, return line number it is in.
869 Second arg nonzero means if pc is on the boundary
870 use the previous statement's line number. */
872 struct symtab_and_line find_pc_line ();
874 /* Given a symtab and line number, return the pc there. */
875 extern CORE_ADDR find_line_pc ();
876 extern int find_line_pc_range ();
878 /* Given a string, return the line specified by it.
879 For commands like "list" and "breakpoint". */
881 struct symtabs_and_lines decode_line_spec ();
882 struct symtabs_and_lines decode_line_spec_1 ();
883 struct symtabs_and_lines decode_line_1 ();
888 /* Symbol-reading stuff in symfile.c and solib.c. */
889 struct symtab *psymtab_to_symtab ();
891 void symbol_file_add ();
894 int identify_source_line ();
895 void print_source_lines ();
896 void forget_cached_source_info (
901 void select_source_symtab (
907 char **make_symbol_completion_list ();
909 /* Maximum and minimum values of built-in types */
910 #define MAX_OF_TYPE(t) \
911 TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) : MAX_OF_SIZE(TYPE_LENGTH(t))
913 #define MIN_OF_TYPE(t) \
914 TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) : MIN_OF_SIZE(TYPE_LENGTH(t))
916 #endif /* symtab.h not already included. */