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 extern void *xmalloc ();
38 extern char *xmalloc ();
42 /* Some macros for char-based bitfields. */
43 #define B_SET(a,x) (a[x>>3] |= (1 << (x&7)))
44 #define B_CLR(a,x) (a[x>>3] &= ~(1 << (x&7)))
45 #define B_TST(a,x) (a[x>>3] & (1 << (x&7)))
46 #define B_TYPE unsigned char
47 #define B_BYTES(x) ( 1 + ((x)>>3) )
48 #define B_CLRALL(a,x) bzero (a, B_BYTES(x))
50 /* gdb can know one or several symbol tables at the same time;
51 the ultimate intent is to have one for each separately-compiled module.
52 Each such symbol table is recorded by a struct symtab, and they
53 are all chained together. */
55 /* In addition, gdb can record any number of miscellaneous undebuggable
56 functions' addresses. In a system that appends _ to function names,
57 the _'s are removed from the names stored in this table. */
59 /* Actually, the misc function list is used to store *all* of the
60 global symbols (text, data, bss, and abs). It is sometimes used
61 to figure out what symtabs to read in. The "type" field is used
62 occasionally. Calling it the misc "function" vector is now a misnomer.
64 The misc_info field is available for machine-specific information
65 that can be cached along with a misc function vector entry. The
66 AMD 29000 tdep.c uses it to remember things it has decoded from the
67 instructions in the function header, so it doesn't have to rederive
68 the info constantly (over a serial line). It is initialized to zero
69 and stays that way until target-dependent code sets it. */
71 enum misc_function_type
{mf_unknown
= 0, mf_text
, mf_data
, mf_bss
, mf_abs
};
77 char *misc_info
; /* Random pointer to misc info. void * but for old C */
78 enum misc_function_type type
;
81 /* Address and length of the vector recording all misc function names/addresses. */
83 struct misc_function
*misc_function_vector
;
84 int misc_function_count
;
86 /* Different kinds of data types are distinguished by the `code' field. */
90 TYPE_CODE_UNDEF
, /* Not used; catches errors */
91 TYPE_CODE_PTR
, /* Pointer type */
92 TYPE_CODE_ARRAY
, /* Array type, lower bound zero */
93 TYPE_CODE_STRUCT
, /* C struct or Pascal record */
94 TYPE_CODE_UNION
, /* C union or Pascal variant part */
95 TYPE_CODE_ENUM
, /* Enumeration type */
96 TYPE_CODE_FUNC
, /* Function type */
97 TYPE_CODE_INT
, /* Integer type */
98 TYPE_CODE_FLT
, /* Floating type */
99 TYPE_CODE_VOID
, /* Void type (values zero length) */
100 TYPE_CODE_SET
, /* Pascal sets */
101 TYPE_CODE_RANGE
, /* Range (integers within spec'd bounds) */
102 TYPE_CODE_PASCAL_ARRAY
, /* Array with explicit type of index */
103 TYPE_CODE_ERROR
, /* Unknown type */
106 TYPE_CODE_MEMBER
, /* Member type */
107 TYPE_CODE_METHOD
, /* Method type */
108 TYPE_CODE_REF
, /* C++ Reference types */
111 TYPE_CODE_CHAR
, /* *real* character type */
112 TYPE_CODE_BOOL
, /* Builtin Modula-2 BOOLEAN */
115 /* This appears in a type's flags word for an unsigned integer type. */
116 #define TYPE_FLAG_UNSIGNED 1
117 /* This appears in a type's flags word
118 if it is a (pointer to a|function returning a)* built in scalar type.
119 These types are never freed. */
120 #define TYPE_FLAG_PERM 4
121 /* This appears in a type's flags word if it is a stub type (eg. if
122 someone referenced a type that wasn't definined in a source file
123 via (struct sir_not_appearing_in_this_film *)). */
124 #define TYPE_FLAG_STUB 8
125 /* Set when a class has a constructor defined */
126 #define TYPE_FLAG_HAS_CONSTRUCTOR 256
127 /* Set when a class has a destructor defined */
128 #define TYPE_FLAG_HAS_DESTRUCTOR 512
132 /* Code for kind of type */
134 /* Name of this type, or zero if none.
135 This is used for printing only, except by poorly designed C++ code.
136 Type names specified as input are defined by symbols. */
138 /* Length in bytes of storage for a value of this type */
140 /* For a pointer type, describes the type of object pointed to.
141 For an array type, describes the type of the elements.
142 For a function or method type, describes the type of the value.
143 For a range type, describes the type of the full range.
145 struct type
*target_type
;
146 /* Type that is a pointer to this type.
147 Zero if no such pointer-to type is known yet.
148 The debugger may add the address of such a type
149 if it has to construct one later. */
150 struct type
*pointer_type
;
151 /* C++: also need a reference type. */
152 struct type
*reference_type
;
153 struct type
**arg_types
;
155 /* Type that is a function returning this type.
156 Zero if no such function type is known here.
157 The debugger may add the address of such a type
158 if it has to construct one later. */
159 struct type
*function_type
;
161 /* Handling of pointers to members:
162 TYPE_MAIN_VARIANT is used for pointer and pointer
163 to member types. Normally it the value of the address of its
164 containing type. However, for pointers to members, we must be
165 able to allocate pointer to member types and look them up
166 from some place of reference.
167 NEXT_VARIANT is the next element in the chain.
169 A long time ago (Jul 88; GDB 2.5) Tiemann said that main_variant
170 may no longer be necessary and that he might eliminate it. I don't
171 know whether this is still true (or ever was). */
172 struct type
*main_variant
, *next_variant
;
174 /* Flags about this type. */
176 /* Number of fields described for this type */
178 /* For structure and union types, a description of each field.
179 For set and pascal array types, there is one "field",
180 whose type is the domain type of the set or array.
181 For range types, there are two "fields",
182 the minimum and maximum values (both inclusive).
183 For enum types, each possible value is described by one "field".
185 Using a pointer to a separate array of fields
186 allows all types to have the same size, which is useful
187 because we can allocate the space for a type before
188 we know what to put in it. */
191 /* Position of this field, counting in bits from start of
192 containing structure. For a function type, this is the
193 position in the argument list of this argument.
194 For a range bound or enum value, this is the value itself. */
196 /* Size of this field, in bits, or zero if not packed.
197 For an unpacked field, the field's type's length
198 says how many bytes the field occupies. */
200 /* In a struct or enum type, type of this field.
201 In a function type, type of this argument.
202 In an array type, the domain-type of the array. */
204 /* Name of field, value or argument.
205 Zero for range bounds and array domains. */
210 B_TYPE
*virtual_field_bits
; /* if base class is virtual */
211 B_TYPE
*private_field_bits
;
212 B_TYPE
*protected_field_bits
;
214 /* Number of methods described for this type */
216 /* Number of base classes this type derives from. */
219 /* Number of methods described for this type plus all the
220 methods that it derives from. */
221 int nfn_fields_total
;
223 /* For classes, structures, and unions, a description of each field,
224 which consists of an overloaded name, followed by the types of
225 arguments that the method expects, and then the name after it
226 has been renamed to make it distinct. */
229 /* The overloaded name. */
231 /* The number of methods with this name. */
233 /* The list of methods. */
236 /* The return value of the method */
238 /* The argument list */
240 /* The name after it has been processed */
243 /* For virtual functions. */
244 /* First baseclass that defines this virtual function. */
245 struct type
*fcontext
;
246 unsigned int is_const
: 1;
247 unsigned int is_volatile
: 1;
248 /* Index into that baseclass's virtual function table,
249 minus 2; else if static: VOFFSET_STATIC; else: 0. */
250 unsigned voffset
: 30;
251 # define VOFFSET_STATIC 1
254 B_TYPE
*private_fn_field_bits
;
255 B_TYPE
*protected_fn_field_bits
;
259 unsigned char via_protected
;
260 unsigned char via_public
;
262 /* For types with virtual functions, VPTR_BASETYPE is the base class which
263 defined the virtual function table pointer. VPTR_FIELDNO is
264 the field number of that pointer in the structure.
266 For types that are pointer to member types, VPTR_BASETYPE
267 ifs the type that this pointer is a member of.
270 struct type
*vptr_basetype
;
275 /* All of the name-scope contours of the program
276 are represented by `struct block' objects.
277 All of these objects are pointed to by the blockvector.
279 Each block represents one name scope.
280 Each lexical context has its own block.
282 The first two blocks in the blockvector are special.
283 The first one contains all the symbols defined in this compilation
284 whose scope is the entire program linked together.
285 The second one contains all the symbols whose scope is the
286 entire compilation excluding other separate compilations.
287 In C, these correspond to global symbols and static symbols.
289 Each block records a range of core addresses for the code that
290 is in the scope of the block. The first two special blocks
291 give, for the range of code, the entire range of code produced
292 by the compilation that the symbol segment belongs to.
294 The blocks appear in the blockvector
295 in order of increasing starting-address,
296 and, within that, in order of decreasing ending-address.
298 This implies that within the body of one function
299 the blocks appear in the order of a depth-first tree walk. */
303 /* Number of blocks in the list. */
305 /* The blocks themselves. */
306 struct block
*block
[1];
309 /* Special block numbers */
310 #define GLOBAL_BLOCK 0
311 #define STATIC_BLOCK 1
312 #define FIRST_LOCAL_BLOCK 2
316 /* Addresses in the executable code that are in this block.
317 Note: in an unrelocated symbol segment in a file,
318 these are always zero. They can be filled in from the
319 N_LBRAC and N_RBRAC symbols in the loader symbol table. */
320 CORE_ADDR startaddr
, endaddr
;
321 /* The symbol that names this block,
322 if the block is the body of a function;
324 Note: In an unrelocated symbol segment in an object file,
325 this field may be zero even when the block has a name.
326 That is because the block is output before the name
327 (since the name resides in a higher block).
328 Since the symbol does point to the block (as its value),
329 it is possible to find the block and set its name properly. */
330 struct symbol
*function
;
331 /* The `struct block' for the containing block, or 0 if none. */
332 /* Note that in an unrelocated symbol segment in an object file
333 this pointer may be zero when the correct value should be
334 the second special block (for symbols whose scope is one compilation).
335 This is because the compiler ouptuts the special blocks at the
336 very end, after the other blocks. */
337 struct block
*superblock
;
338 /* A flag indicating whether or not the fucntion corresponding
339 to this block was compiled with gcc or not. If there is no
340 function corresponding to this block, this meaning of this flag
341 is undefined. (In practice it will be 1 if the block was created
342 while processing a file compiled with gcc and 0 when not). */
343 unsigned char gcc_compile_flag
;
344 /* Number of local symbols. */
347 struct symbol
*sym
[1];
350 /* Represent one symbol name; a variable, constant, function or typedef. */
352 /* Different name spaces for symbols. Looking up a symbol specifies
353 a namespace and ignores symbol definitions in other name spaces.
355 VAR_NAMESPACE is the usual namespace.
356 In C, this contains variables, function names, typedef names
357 and enum type values.
359 STRUCT_NAMESPACE is used in C to hold struct, union and enum type names.
360 Thus, if `struct foo' is used in a C program,
361 it produces a symbol named `foo' in the STRUCT_NAMESPACE.
363 LABEL_NAMESPACE may be used for names of labels (for gotos);
364 currently it is not used and labels are not recorded at all. */
366 /* For a non-global symbol allocated statically,
367 the correct core address cannot be determined by the compiler.
368 The compiler puts an index number into the symbol's value field.
369 This index number can be matched with the "desc" field of
370 an entry in the loader symbol table. */
374 UNDEF_NAMESPACE
, VAR_NAMESPACE
, STRUCT_NAMESPACE
, LABEL_NAMESPACE
,
377 /* An address-class says where to find the value of a symbol. */
381 LOC_UNDEF
, /* Not used; catches errors */
382 LOC_CONST
, /* Value is constant int SYMBOL_VALUE, host byteorder */
383 LOC_STATIC
, /* Value is at fixed address SYMBOL_VALUE_ADDRESS */
384 LOC_REGISTER
, /* Value is in register */
385 LOC_ARG
, /* Value is at spec'd offset in arglist */
386 LOC_REF_ARG
, /* Value address is at spec'd offset in arglist. */
387 LOC_REGPARM
, /* Value is at spec'd offset in register window */
388 LOC_LOCAL
, /* Value is at spec'd offset in stack frame */
389 LOC_TYPEDEF
, /* Value not used; definition in SYMBOL_TYPE
390 Symbols in the namespace STRUCT_NAMESPACE
391 all have this class. */
392 LOC_LABEL
, /* Value is address SYMBOL_VALUE_ADDRESS in the code */
393 LOC_BLOCK
, /* Value is address SYMBOL_VALUE_BLOCK of a
394 `struct block'. Function names have this class. */
395 LOC_CONST_BYTES
, /* Value is a constant byte-sequence pointed to by
396 SYMBOL_VALUE_ADDRESS, in target byte order. */
397 LOC_LOCAL_ARG
, /* Value is arg at spec'd offset in stack frame.
398 Differs from LOC_LOCAL in that symbol is an
399 argument; differs from LOC_ARG in that we find it
400 in the frame (FRAME_LOCALS_ADDRESS), not in the
401 arglist (FRAME_ARGS_ADDRESS). Added for i960,
402 which passes args in regs then copies to frame. */
409 /* Name space code. */
410 enum namespace namespace;
412 enum address_class
class;
413 /* Data type of value */
416 /* Line number of definition. */
419 /* constant value, or address if static, or register number,
420 or offset in arguments, or offset in stack frame. All of
421 these are in host byte order (though what they point to might
422 be in target byte order, e.g. LOC_CONST_BYTES). */
425 long value
; /* for LOC_CONST, LOC_REGISTER, LOC_ARG,
426 LOC_REF_ARG, LOC_REGPARM, LOC_LOCAL */
427 struct block
*block
; /* for LOC_BLOCK */
428 char *bytes
; /* for LOC_CONST_BYTES */
429 CORE_ADDR address
; /* for LOC_STATIC, LOC_LABEL */
430 struct symbol
*chain
; /* for opaque typedef struct chain */
436 /* A partial_symbol records the name, namespace, and address class of
437 symbols whose types we have not parsed yet. For functions, it also
438 contains their memory address, so we can find them from a PC value.
439 Each partial_symbol sits in a partial_symtab, all of which are chained
440 on the partial_symtab_list and which points to the corresponding
441 normal symtab once the partial_symtab has been referenced. */
443 struct partial_symbol
447 /* Name space code. */
448 enum namespace namespace;
449 /* Address class (for info_symbols) */
450 enum address_class
class;
451 /* Value (only used for static functions currently). Done this
452 way so that we can use the struct symbol macros.
453 Note that the address of a function is SYMBOL_VALUE_ADDRESS (pst)
454 in a partial symbol table, but BLOCK_START (SYMBOL_BLOCK_VALUE (st))
455 in a symbol table. */
464 /* Source-file information.
465 This describes the relation between source files and line numbers
466 and addresses in the program text. */
470 int length
; /* Number of source files described */
471 struct source
*source
[1]; /* Descriptions of the files */
474 /* Each item represents a line-->pc (or the reverse) mapping. This is
475 somewhat more wasteful of space than one might wish, but since only
476 the files which are actually debugged are read in to core, we don't
479 Each item used to be an int; either minus a line number, or a
480 program counter. If it represents a line number, that is the line
481 described by the next program counter value. If it is positive, it
482 is the program counter at which the code for the next line starts. */
484 struct linetable_entry
493 struct linetable_entry item
[1];
496 /* All the information on one source file. */
500 char *name
; /* Name of file */
501 struct linetable contents
;
504 /* Each source file is represented by a struct symtab.
505 These objects are chained through the `next' field. */
509 /* Chain of all existing symtabs. */
511 /* List of all symbol scope blocks for this symtab. */
512 struct blockvector
*blockvector
;
513 /* Table mapping core addresses to line numbers for this file.
514 Can be NULL if none. */
515 struct linetable
*linetable
;
516 /* Name of this source file. */
518 /* Directory in which it was compiled, or NULL if we don't know. */
520 /* This component says how to free the data we point to:
521 free_contents => do a tree walk and free each object.
522 free_nothing => do nothing; some other symtab will free
523 the data this one uses.
524 free_linetable => free just the linetable. */
525 enum free_code
{free_nothing
, free_contents
, free_linetable
}
527 /* Pointer to one block of storage to be freed, if nonzero. */
528 /* This is IN ADDITION to the action indicated by free_code. */
530 /* Total number of lines found in source file. */
532 /* Array mapping line number to character position. */
534 /* Language of this source file. */
535 enum language language
;
536 /* String of version information. May be zero. */
538 /* Full name of file as found by searching the source path.
539 0 if not yet known. */
542 /* Object file from which this symbol information was read. */
543 struct objfile
*objfile
;
544 /* Chain of all symtabs owned by that objfile. */
545 struct symtab
*objfile_chain
;
547 /* Anything extra for this symtab. This is for target machines
548 with special debugging info of some sort (which cannot just
549 be represented in a normal symtab). */
550 #if defined (EXTRA_SYMTAB_INFO)
555 /* Each source file that has not been fully read in is represented by
556 a partial_symtab. This contains the information on where in the
557 executable the debugging symbols for a specific file are, and a
558 list of names of global symbols which are located in this file.
559 They are all chained on partial_symtab_list.
561 Even after the source file has been read into a symtab, the
562 partial_symtab remains around. They are allocated on an obstack,
563 psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks-
564 style execution of a bunch of .o's. */
565 struct partial_symtab
567 /* Chain of all existing partial symtabs. */
568 struct partial_symtab
*next
;
569 /* Name of the source file which this partial_symtab defines */
572 /* Information about the object file from which symbols should be read. */
573 struct objfile
*objfile
;
574 /* Chain of psymtabs owned by this objfile */
575 struct partial_symtab
*objfile_chain
;
577 /* Address relative to which the symbols in this file are. Need to
578 relocate by this amount when reading in symbols from the symbol
581 /* Range of text addresses covered by this file; texthigh is the
582 beginning of the next section. */
583 CORE_ADDR textlow
, texthigh
;
584 /* Array of pointers to all of the partial_symtab's which this one
585 depends on. Since this array can only be set to previous or
586 the current (?) psymtab, this dependency tree is guaranteed not
587 to have any loops. */
588 struct partial_symtab
**dependencies
;
589 int number_of_dependencies
;
590 /* Global symbol list. This list will be sorted after readin to
591 improve access. Binary search will be the usual method of
592 finding a symbol within it. globals_offset is an integer offset
593 within global_psymbols[]. */
594 int globals_offset
, n_global_syms
;
595 /* Static symbol list. This list will *not* be sorted after readin;
596 to find a symbol in it, exhaustive search must be used. This is
597 reasonable because searches through this list will eventually
598 lead to either the read in of a files symbols for real (assumed
599 to take a *lot* of time; check) or an error (and we don't care
600 how long errors take). This is an offset and size within
601 static_psymbols[]. */
602 int statics_offset
, n_static_syms
;
603 /* Pointer to symtab eventually allocated for this source file, 0 if
604 !readin or if we haven't looked for the symtab after it was readin. */
605 struct symtab
*symtab
;
606 /* Pointer to function which will read in the symtab corresponding to
608 void (*read_symtab
) ();
609 /* Information that lets read_symtab() locate the part of the symbol table
610 that this psymtab corresponds to. This information is private to the
611 format-dependent symbol reading routines. For further detail examine
612 the various symbol reading modules. Should really be (void *) but is
613 (char *) as with other such gdb variables. (FIXME) */
614 char *read_symtab_private
;
615 /* Non-zero if the symtab corresponding to this psymtab has been
617 unsigned char readin
;
620 /* A fast way to get from a psymtab to its symtab (after the first time). */
621 #define PSYMTAB_TO_SYMTAB(pst) ((pst)->symtab? \
623 psymtab_to_symtab (pst) )
625 /* This is the list of struct symtab's that gdb considers current. */
627 struct symtab
*symtab_list
;
629 /* This is the list of struct partial_symtab's that gdb may need to access */
631 struct partial_symtab
*partial_symtab_list
;
633 /* This symtab variable specifies the current file for printing source lines */
635 struct symtab
*current_source_symtab
;
637 /* This is the next line to print for listing source lines. */
639 int current_source_line
;
641 #define BLOCKVECTOR(symtab) (symtab)->blockvector
643 #define LINETABLE(symtab) (symtab)->linetable
645 /* Macros normally used to access components of symbol table structures. */
647 #define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
648 #define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
650 #define BLOCK_START(bl) (bl)->startaddr
651 #define BLOCK_END(bl) (bl)->endaddr
652 #define BLOCK_NSYMS(bl) (bl)->nsyms
653 #define BLOCK_SYM(bl, n) (bl)->sym[n]
654 #define BLOCK_FUNCTION(bl) (bl)->function
655 #define BLOCK_SUPERBLOCK(bl) (bl)->superblock
656 #define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag
658 /* Nonzero if symbols of block BL should be sorted alphabetically. */
659 #define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40)
661 #define SYMBOL_NAME(symbol) (symbol)->name
662 #define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
663 #define SYMBOL_CLASS(symbol) (symbol)->class
664 #define SYMBOL_VALUE(symbol) (symbol)->value.value
665 #define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->value.address
666 #define SYMBOL_VALUE_BYTES(symbol) (symbol)->value.bytes
667 #define SYMBOL_BLOCK_VALUE(symbol) (symbol)->value.block
668 #define SYMBOL_VALUE_CHAIN(symbol) (symbol)->value.chain
669 #define SYMBOL_TYPE(symbol) (symbol)->type
670 #define SYMBOL_LINE(symbol) (symbol)->line
672 #define TYPE_NAME(thistype) (thistype)->name
673 #define TYPE_TARGET_TYPE(thistype) (thistype)->target_type
674 #define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type
675 #define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type
676 #define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type
677 #define TYPE_MAIN_VARIANT(thistype) (thistype)->main_variant
678 #define TYPE_NEXT_VARIANT(thistype) (thistype)->next_variant
679 #define TYPE_LENGTH(thistype) (thistype)->length
680 #define TYPE_FLAGS(thistype) (thistype)->flags
681 #define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED)
682 #define TYPE_CODE(thistype) (thistype)->code
683 #define TYPE_NFIELDS(thistype) (thistype)->nfields
684 #define TYPE_FIELDS(thistype) (thistype)->fields
686 #define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype
687 #define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype
688 #define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno
689 #define TYPE_FN_FIELDS(thistype) (thistype)->fn_fields
690 #define TYPE_NFN_FIELDS(thistype) (thistype)->nfn_fields
691 #define TYPE_NFN_FIELDS_TOTAL(thistype) (thistype)->nfn_fields_total
692 #define TYPE_ARG_TYPES(thistype) (thistype)->arg_types
693 #define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type
694 #define TYPE_N_BASECLASSES(thistype) (thistype)->n_baseclasses
695 #define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name
696 #define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos
697 #define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index))
698 #define BASETYPE_VIA_VIRTUAL(thistype, index) B_TST((thistype)->virtual_field_bits, (index))
700 #define TYPE_FIELD(thistype, n) (thistype)->fields[n]
701 #define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type
702 #define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name
703 #define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type)
704 #define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos
705 #define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize
706 #define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize
708 #define TYPE_FIELD_PRIVATE_BITS(thistype) (thistype)->private_field_bits
709 #define TYPE_FIELD_PROTECTED_BITS(thistype) (thistype)->protected_field_bits
710 #define TYPE_FIELD_VIRTUAL_BITS(thistype) (thistype)->virtual_field_bits
711 #define SET_TYPE_FIELD_PRIVATE(thistype, n) B_SET ((thistype)->private_field_bits, (n))
712 #define SET_TYPE_FIELD_PROTECTED(thistype, n) B_SET ((thistype)->protected_field_bits, (n))
713 #define SET_TYPE_FIELD_VIRTUAL(thistype, n) B_SET ((thistype)->virtual_field_bits, (n))
714 #define TYPE_FIELD_PRIVATE(thistype, n) B_TST((thistype)->private_field_bits, (n))
715 #define TYPE_FIELD_PROTECTED(thistype, n) B_TST((thistype)->protected_field_bits, (n))
716 #define TYPE_FIELD_VIRTUAL(thistype, n) B_TST((thistype)->virtual_field_bits, (n))
718 #define TYPE_HAS_DESTRUCTOR(thistype) ((thistype)->flags & TYPE_FLAG_HAS_DESTRUCTOR)
719 #define TYPE_HAS_CONSTRUCTOR(thistype) ((thistype)->flags & TYPE_FLAG_HAS_CONSTRUCTOR)
721 #define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1)
722 #define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize)
724 #define TYPE_FN_FIELDLISTS(thistype) (thistype)->fn_fieldlists
725 #define TYPE_FN_FIELDLIST(thistype, n) (thistype)->fn_fieldlists[n]
726 #define TYPE_FN_FIELDLIST1(thistype, n) (thistype)->fn_fieldlists[n].fn_fields
727 #define TYPE_FN_FIELDLIST_NAME(thistype, n) (thistype)->fn_fieldlists[n].name
728 #define TYPE_FN_FIELDLIST_LENGTH(thistype, n) (thistype)->fn_fieldlists[n].length
730 #define TYPE_FN_FIELD(thistype, n) (thistype)[n]
731 #define TYPE_FN_FIELD_NAME(thistype, n) (thistype)[n].name
732 #define TYPE_FN_FIELD_TYPE(thistype, n) (thistype)[n].type
733 #define TYPE_FN_FIELD_ARGS(thistype, n) TYPE_ARG_TYPES ((thistype)[n].type)
734 #define TYPE_FN_FIELD_PHYSNAME(thistype, n) (thistype)[n].physname
735 #define TYPE_FN_FIELD_VIRTUAL_P(thistype, n) ((thistype)[n].voffset > 1)
736 #define TYPE_FN_FIELD_STATIC_P(thistype, n) ((thistype)[n].voffset == VOFFSET_STATIC)
737 #define TYPE_FN_FIELD_VOFFSET(thistype, n) ((thistype)[n].voffset-2)
738 #define TYPE_FN_FIELD_FCONTEXT(thistype, n) ((thistype)[n].fcontext)
740 #define TYPE_FN_PRIVATE_BITS(thistype) (thistype).private_fn_field_bits
741 #define TYPE_FN_PROTECTED_BITS(thistype) (thistype).protected_fn_field_bits
742 #define SET_TYPE_FN_PRIVATE(thistype, n) B_SET ((thistype).private_fn_field_bits, n)
743 #define SET_TYPE_FN_PROTECTED(thistype, n) B_SET ((thistype).protected_fn_field_bits, n)
744 #define TYPE_FN_PRIVATE(thistype, n) B_TST ((thistype).private_fn_field_bits, n)
745 #define TYPE_FN_PROTECTED(thistype, n) B_TST ((thistype).protected_fn_field_bits, n)
747 /* The virtual function table is now an array of structures
748 which have the form { int16 offset, delta; void *pfn; }.
750 In normal virtual function tables, OFFSET is unused.
751 DELTA is the amount which is added to the apparent object's base
752 address in order to point to the actual object to which the
753 virtual function should be applied.
754 PFN is a pointer to the virtual function. */
756 #define VTBL_FNADDR_OFFSET 2
758 /* Macro that yields non-zero value iff NAME is the prefix
759 for C++ operator names. If you leave out the parenthesis
762 Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the
763 symbol-file and the names in gdb's symbol table. */
764 #define OPNAME_PREFIX_P(NAME) ((NAME)[0] == 'o' && (NAME)[1] == 'p' \
765 && (NAME)[2] == CPLUS_MARKER)
767 #define VTBL_PREFIX_P(NAME) ((NAME)[3] == CPLUS_MARKER \
768 && !strncmp ((NAME), "_vt", 3))
770 /* Functions that work on the objects described above */
772 extern struct symtab
*lookup_symtab ();
773 extern struct symbol
*lookup_symbol ();
774 extern struct symbol
*lookup_block_symbol ();
775 extern int lookup_misc_func ();
776 extern void check_stub_type ();
777 extern void check_stub_method ();
778 extern struct type
*lookup_primitive_typename ();
779 extern struct type
*lookup_typename ();
780 extern struct type
*lookup_unsigned_typename ();
781 extern struct type
*lookup_struct ();
782 extern struct type
*lookup_union ();
783 extern struct type
*lookup_enum ();
784 extern struct type
*lookup_struct_elt_type ();
785 extern struct type
*lookup_pointer_type ();
786 extern struct type
*lookup_function_type ();
787 extern struct type
*create_array_type ();
788 extern struct symbol
*block_function ();
789 extern struct symbol
*find_pc_function ();
790 extern int find_pc_partial_function ();
791 extern void clear_pc_function_cache ();
792 extern struct partial_symtab
*lookup_partial_symtab ();
793 extern struct partial_symtab
*find_pc_psymtab ();
794 extern struct symtab
*find_pc_symtab ();
795 extern struct partial_symbol
*find_pc_psymbol ();
796 extern int find_pc_misc_function ();
797 extern int find_pc_line_pc_range ();
798 extern char *type_name_no_tag ();
799 extern int contained_in();
802 extern struct type
*lookup_reference_type ();
803 extern struct type
*lookup_member_type ();
804 extern struct type
*lookup_method_type ();
805 extern void smash_to_method_type ();
806 void smash_to_member_type (
808 struct type
*, struct type
*, struct type
*
811 extern struct type
*allocate_stub_method ();
812 /* end of C++ stuff. */
814 extern void reread_symbols ();
816 extern struct type
*builtin_type_void
;
817 extern struct type
*builtin_type_char
;
818 extern struct type
*builtin_type_short
;
819 extern struct type
*builtin_type_int
;
820 extern struct type
*builtin_type_long
;
821 extern struct type
*builtin_type_unsigned_char
;
822 extern struct type
*builtin_type_unsigned_short
;
823 extern struct type
*builtin_type_unsigned_int
;
824 extern struct type
*builtin_type_unsigned_long
;
825 extern struct type
*builtin_type_float
;
826 extern struct type
*builtin_type_double
;
827 extern struct type
*builtin_type_long_double
;
828 extern struct type
*builtin_type_complex
;
829 extern struct type
*builtin_type_double_complex
;
830 /* This type represents a type that was unrecognized in symbol
832 extern struct type
*builtin_type_error
;
834 extern struct type
*builtin_type_long_long
;
835 extern struct type
*builtin_type_unsigned_long_long
;
838 extern struct type
*builtin_type_m2_char
;
839 extern struct type
*builtin_type_m2_int
;
840 extern struct type
*builtin_type_m2_card
;
841 extern struct type
*builtin_type_m2_real
;
842 extern struct type
*builtin_type_m2_bool
;
844 /* LONG_LONG is defined if the host has "long long". */
846 #define BUILTIN_TYPE_LONGEST builtin_type_long_long
847 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long_long
848 /* This should not be a typedef, because "unsigned LONGEST" needs
850 #define LONGEST long long
852 #else /* not LONG_LONG. */
854 #define BUILTIN_TYPE_LONGEST builtin_type_long
855 #define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long
858 #endif /* not LONG_LONG. */
860 struct symtab_and_line
862 struct symtab
*symtab
;
868 struct symtabs_and_lines
870 struct symtab_and_line
*sals
;
874 /* Given a pc value, return line number it is in.
875 Second arg nonzero means if pc is on the boundary
876 use the previous statement's line number. */
878 struct symtab_and_line
find_pc_line ();
880 /* Given a symtab and line number, return the pc there. */
881 extern CORE_ADDR
find_line_pc ();
882 extern int find_line_pc_range ();
884 /* Given a string, return the line specified by it.
885 For commands like "list" and "breakpoint". */
887 struct symtabs_and_lines
decode_line_spec ();
888 struct symtabs_and_lines
decode_line_spec_1 ();
889 struct symtabs_and_lines
decode_line_1 ();
894 /* Symbol-reading stuff in symfile.c and solib.c. */
895 struct symtab
*psymtab_to_symtab ();
897 void symbol_file_add ();
900 int identify_source_line ();
901 void print_source_lines ();
902 void forget_cached_source_info (
907 void select_source_symtab (
913 char **make_symbol_completion_list ();
915 /* Maximum and minimum values of built-in types */
916 #define MAX_OF_TYPE(t) \
917 TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) : MAX_OF_SIZE(TYPE_LENGTH(t))
919 #define MIN_OF_TYPE(t) \
920 TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) : MIN_OF_SIZE(TYPE_LENGTH(t))
922 #endif /* symtab.h not already included. */