2 * Symbol lookup and handling.
4 * Copyright (C) 2003 Transmeta Corp.
5 * 2003-2004 Linus Torvalds
7 * Licensed under the Open Software License version 1.1
20 #include "expression.h"
25 * Secondary symbol list for stuff that needs to be output because it
28 struct symbol_list
*translation_unit_used_list
= NULL
;
31 * If the symbol is an inline symbol, add it to the list of symbols to parse
33 void access_symbol(struct symbol
*sym
)
35 if (sym
->ctype
.modifiers
& MOD_INLINE
) {
36 if (!(sym
->ctype
.modifiers
& MOD_ACCESSED
)) {
37 add_symbol(&translation_unit_used_list
, sym
);
38 sym
->ctype
.modifiers
|= MOD_ACCESSED
;
43 struct symbol
*lookup_symbol(struct ident
*ident
, enum namespace ns
)
47 for (sym
= ident
->symbols
; sym
; sym
= sym
->next_id
) {
48 if (sym
->namespace & ns
) {
56 struct context
*alloc_context(void)
58 return __alloc_context(0);
61 struct symbol
*alloc_symbol(struct position pos
, int type
)
63 struct symbol
*sym
= __alloc_symbol(0);
69 struct struct_union_info
{
70 unsigned long max_align
;
71 unsigned long bit_size
;
76 * Unions are fairly easy to lay out ;)
78 static void lay_out_union(struct symbol
*sym
, struct struct_union_info
*info
)
80 examine_symbol_type(sym
);
82 // Unnamed bitfields do not affect alignment.
83 if (sym
->ident
|| !is_bitfield_type(sym
)) {
84 if (sym
->ctype
.alignment
> info
->max_align
)
85 info
->max_align
= sym
->ctype
.alignment
;
88 if (sym
->bit_size
> info
->bit_size
)
89 info
->bit_size
= sym
->bit_size
;
94 static int bitfield_base_size(struct symbol
*sym
)
96 if (sym
->type
== SYM_NODE
)
97 sym
= sym
->ctype
.base_type
;
98 if (sym
->type
== SYM_BITFIELD
)
99 sym
= sym
->ctype
.base_type
;
100 return sym
->bit_size
;
104 * Structures are a bit more interesting to lay out
106 static void lay_out_struct(struct symbol
*sym
, struct struct_union_info
*info
)
108 unsigned long bit_size
, align_bit_mask
;
111 examine_symbol_type(sym
);
113 // Unnamed bitfields do not affect alignment.
114 if (sym
->ident
|| !is_bitfield_type(sym
)) {
115 if (sym
->ctype
.alignment
> info
->max_align
)
116 info
->max_align
= sym
->ctype
.alignment
;
119 bit_size
= info
->bit_size
;
120 base_size
= sym
->bit_size
;
123 * Unsized arrays cause us to not align the resulting
127 info
->align_size
= 0;
131 align_bit_mask
= (sym
->ctype
.alignment
<< 3) - 1;
134 * Bitfields have some very special rules..
136 if (is_bitfield_type (sym
)) {
137 unsigned long bit_offset
= bit_size
& align_bit_mask
;
138 int room
= bitfield_base_size(sym
) - bit_offset
;
139 // Zero-width fields just fill up the unit.
140 int width
= base_size
? : (bit_offset
? room
: 0);
143 bit_size
= (bit_size
+ align_bit_mask
) & ~align_bit_mask
;
146 sym
->offset
= (bit_size
- bit_offset
) >> 3;
147 sym
->bit_offset
= bit_offset
;
148 sym
->ctype
.base_type
->bit_offset
= bit_offset
;
149 info
->bit_size
= bit_size
+ width
;
150 // warning (sym->pos, "bitfield: offset=%d:%d size=:%d", sym->offset, sym->bit_offset, width);
156 * Otherwise, just align it right and add it up..
158 bit_size
= (bit_size
+ align_bit_mask
) & ~align_bit_mask
;
159 sym
->offset
= bit_size
>> 3;
161 info
->bit_size
= bit_size
+ base_size
;
162 // warning (sym->pos, "regular: offset=%d", sym->offset);
165 static struct symbol
* examine_struct_union_type(struct symbol
*sym
, int advance
)
167 struct struct_union_info info
= {
172 unsigned long bit_size
, bit_align
;
173 void (*fn
)(struct symbol
*, struct struct_union_info
*);
174 struct symbol
*member
;
176 fn
= advance
? lay_out_struct
: lay_out_union
;
177 FOR_EACH_PTR(sym
->symbol_list
, member
) {
179 } END_FOR_EACH_PTR(member
);
181 if (!sym
->ctype
.alignment
)
182 sym
->ctype
.alignment
= info
.max_align
;
183 bit_size
= info
.bit_size
;
184 if (info
.align_size
) {
185 bit_align
= (sym
->ctype
.alignment
<< 3)-1;
186 bit_size
= (bit_size
+ bit_align
) & ~bit_align
;
188 sym
->bit_size
= bit_size
;
192 static struct symbol
*examine_base_type(struct symbol
*sym
)
194 struct symbol
*base_type
;
196 /* Check the basetype */
197 base_type
= sym
->ctype
.base_type
;
199 base_type
= examine_symbol_type(base_type
);
201 /* "typeof" can cause this */
202 if (base_type
&& base_type
->type
== SYM_NODE
)
203 merge_type(sym
, base_type
);
208 static struct symbol
* examine_array_type(struct symbol
*sym
)
210 struct symbol
*base_type
= examine_base_type(sym
);
211 unsigned long bit_size
, alignment
;
215 bit_size
= base_type
->bit_size
* get_expression_value(sym
->array_size
);
216 if (!sym
->array_size
|| sym
->array_size
->type
!= EXPR_VALUE
)
218 alignment
= base_type
->ctype
.alignment
;
219 if (!sym
->ctype
.alignment
)
220 sym
->ctype
.alignment
= alignment
;
221 sym
->bit_size
= bit_size
;
225 static struct symbol
*examine_bitfield_type(struct symbol
*sym
)
227 struct symbol
*base_type
= examine_base_type(sym
);
228 unsigned long bit_size
, alignment
, modifiers
;
232 bit_size
= base_type
->bit_size
;
233 if (sym
->bit_size
> bit_size
)
234 warning(sym
->pos
, "impossible field-width, %d, for this type", sym
->bit_size
);
236 alignment
= base_type
->ctype
.alignment
;
237 if (!sym
->ctype
.alignment
)
238 sym
->ctype
.alignment
= alignment
;
239 modifiers
= base_type
->ctype
.modifiers
;
241 /* Bitfields are unsigned, unless the base type was explicitly signed */
242 if (!(modifiers
& MOD_EXPLICITLY_SIGNED
))
243 modifiers
= (modifiers
& ~MOD_SIGNED
) | MOD_UNSIGNED
;
244 sym
->ctype
.modifiers
|= modifiers
& MOD_SIGNEDNESS
;
249 * "typeof" will have to merge the types together
251 void merge_type(struct symbol
*sym
, struct symbol
*base_type
)
253 sym
->ctype
.as
|= base_type
->ctype
.as
;
254 sym
->ctype
.modifiers
|= (base_type
->ctype
.modifiers
& ~MOD_STORAGE
);
255 concat_ptr_list((struct ptr_list
*)base_type
->ctype
.contexts
,
256 (struct ptr_list
**)&sym
->ctype
.contexts
);
257 sym
->ctype
.base_type
= base_type
->ctype
.base_type
;
260 static int count_array_initializer(struct symbol
*t
, struct expression
*expr
)
266 * Arrays of character types are special; they can be initialized by
267 * string literal _or_ by string literal in braces. The latter means
268 * that with T x[] = {<string literal>} number of elements in x depends
269 * on T - if it's a character type, we get the length of string literal
270 * (including NUL), otherwise we have one element here.
272 if (t
->ctype
.base_type
== &int_type
&& t
->ctype
.modifiers
& MOD_CHAR
)
275 switch (expr
->type
) {
276 case EXPR_INITIALIZER
: {
277 struct expression
*entry
;
280 FOR_EACH_PTR(expr
->expr_list
, entry
) {
282 switch (entry
->type
) {
284 if (entry
->idx_to
>= nr
)
285 nr
= entry
->idx_to
+1;
289 str_len
= entry
->string
->length
;
293 } END_FOR_EACH_PTR(entry
);
294 if (count
== 1 && str_len
)
300 nr
= expr
->string
->length
;
307 static struct symbol
* examine_node_type(struct symbol
*sym
)
309 struct symbol
*base_type
= examine_base_type(sym
);
311 unsigned long alignment
, modifiers
;
313 /* SYM_NODE - figure out what the type of the node was.. */
314 modifiers
= sym
->ctype
.modifiers
;
321 bit_size
= base_type
->bit_size
;
322 alignment
= base_type
->ctype
.alignment
;
324 /* Pick up signedness information into the node */
325 sym
->ctype
.modifiers
|= (MOD_SIGNEDNESS
& base_type
->ctype
.modifiers
);
327 if (!sym
->ctype
.alignment
)
328 sym
->ctype
.alignment
= alignment
;
330 /* Unsized array? The size might come from the initializer.. */
331 if (bit_size
< 0 && base_type
->type
== SYM_ARRAY
&& sym
->initializer
) {
332 struct symbol
*node_type
= base_type
->ctype
.base_type
;
333 int count
= count_array_initializer(node_type
, sym
->initializer
);
335 if (node_type
&& node_type
->bit_size
>= 0)
336 bit_size
= node_type
->bit_size
* count
;
339 sym
->bit_size
= bit_size
;
343 static struct symbol
*examine_enum_type(struct symbol
*sym
)
345 struct symbol
*base_type
= examine_base_type(sym
);
347 sym
->ctype
.modifiers
|= (base_type
->ctype
.modifiers
& MOD_SIGNEDNESS
);
348 sym
->bit_size
= bits_in_enum
;
349 if (base_type
->bit_size
> sym
->bit_size
)
350 sym
->bit_size
= base_type
->bit_size
;
351 sym
->ctype
.alignment
= enum_alignment
;
352 if (base_type
->ctype
.alignment
> sym
->ctype
.alignment
)
353 sym
->ctype
.alignment
= base_type
->ctype
.alignment
;
357 static struct symbol
*examine_pointer_type(struct symbol
*sym
)
360 * We need to set the pointer size first, and
361 * examine the thing we point to only afterwards.
362 * That's because this pointer type may end up
363 * being needed for the base type size evalutation.
366 sym
->bit_size
= bits_in_pointer
;
367 if (!sym
->ctype
.alignment
)
368 sym
->ctype
.alignment
= pointer_alignment
;
373 * Fill in type size and alignment information for
374 * regular SYM_TYPE things.
376 struct symbol
*examine_symbol_type(struct symbol
* sym
)
389 return examine_node_type(sym
);
391 return examine_array_type(sym
);
393 return examine_struct_union_type(sym
, 1);
395 return examine_struct_union_type(sym
, 0);
397 return examine_pointer_type(sym
);
399 return examine_enum_type(sym
);
401 return examine_bitfield_type(sym
);
403 /* Size and alignment had better already be set up */
406 struct symbol
*base
= evaluate_expression(sym
->initializer
);
408 if (is_bitfield_type(base
))
409 warning(base
->pos
, "typeof applied to bitfield type");
410 if (base
->type
== SYM_NODE
)
411 base
= base
->ctype
.base_type
;
417 case SYM_PREPROCESSOR
:
418 sparse_error(sym
->pos
, "ctype on preprocessor command? (%s)", show_ident(sym
->ident
));
420 case SYM_UNINITIALIZED
:
421 sparse_error(sym
->pos
, "ctype on uninitialized symbol %p", sym
);
424 examine_base_type(sym
);
427 sparse_error(sym
->pos
, "Examining unknown symbol type %d", sym
->type
);
433 void check_declaration(struct symbol
*sym
)
436 struct symbol
*next
= sym
;
438 while ((next
= next
->next_id
) != NULL
) {
439 if (next
->namespace != sym
->namespace)
441 if (sym
->scope
== next
->scope
) {
442 sym
->same_symbol
= next
;
445 if (sym
->ctype
.modifiers
& next
->ctype
.modifiers
& MOD_EXTERN
) {
446 sym
->same_symbol
= next
;
450 if (!Wshadow
|| warned
)
452 if (get_sym_type(next
) == SYM_FN
)
455 warning(sym
->pos
, "symbol '%s' shadows an earlier one", show_ident(sym
->ident
));
456 info(next
->pos
, "originally declared here");
460 void bind_symbol(struct symbol
*sym
, struct ident
*ident
, enum namespace ns
)
464 sparse_error(sym
->pos
, "internal error: symbol type already bound");
467 if (ident
->reserved
&& (ns
& (NS_TYPEDEF
| NS_STRUCT
| NS_LABEL
| NS_SYMBOL
))) {
468 sparse_error(sym
->pos
, "Trying to use reserved word '%s' as identifier", show_ident(ident
));
472 sym
->next_id
= ident
->symbols
;
473 ident
->symbols
= sym
;
474 sym
->id_list
= &ident
->symbols
;
475 if (sym
->ident
&& sym
->ident
!= ident
)
476 warning(sym
->pos
, "Symbol '%s' already bound", show_ident(sym
->ident
));
480 if (ns
== NS_SYMBOL
&& toplevel(scope
)) {
481 unsigned mod
= MOD_ADDRESSABLE
| MOD_TOPLEVEL
;
482 scope
= global_scope
;
483 if (sym
->ctype
.modifiers
& MOD_STATIC
) {
487 sym
->ctype
.modifiers
|= mod
;
492 scope
= function_scope
;
493 bind_scope(sym
, scope
);
496 struct symbol
*create_symbol(int stream
, const char *name
, int type
, int namespace)
498 struct token
*token
= built_in_token(stream
, name
);
499 struct symbol
*sym
= alloc_symbol(token
->pos
, type
);
501 bind_symbol(sym
, token
->ident
, namespace);
505 static int evaluate_to_integer(struct expression
*expr
)
507 expr
->ctype
= &int_ctype
;
511 static int evaluate_expect(struct expression
*expr
)
513 /* Should we evaluate it to return the type of the first argument? */
514 expr
->ctype
= &int_ctype
;
518 static int arguments_choose(struct expression
*expr
)
520 struct expression_list
*arglist
= expr
->args
;
521 struct expression
*arg
;
524 FOR_EACH_PTR (arglist
, arg
) {
525 if (!evaluate_expression(arg
))
528 } END_FOR_EACH_PTR(arg
);
530 sparse_error(expr
->pos
,
531 "not enough arguments for __builtin_choose_expr");
534 sparse_error(expr
->pos
,
535 "too many arguments for __builtin_choose_expr");
541 static int evaluate_choose(struct expression
*expr
)
543 struct expression_list
*list
= expr
->args
;
544 struct expression
*arg
, *args
[3];
547 /* there will be exactly 3; we'd already verified that */
548 FOR_EACH_PTR(list
, arg
) {
550 } END_FOR_EACH_PTR(arg
);
552 *expr
= get_expression_value(args
[0]) ? *args
[1] : *args
[2];
557 static int expand_expect(struct expression
*expr
, int cost
)
559 struct expression
*arg
= first_ptr_list((struct ptr_list
*) expr
->args
);
567 * __builtin_warning() has type "int" and always returns 1,
568 * so that you can use it in conditionals or whatever
570 static int expand_warning(struct expression
*expr
, int cost
)
572 struct expression
*arg
;
573 struct expression_list
*arglist
= expr
->args
;
575 FOR_EACH_PTR (arglist
, arg
) {
577 * Constant strings get printed out as a warning. By the
578 * time we get here, the EXPR_STRING has been fully
579 * evaluated, so by now it's an anonymous symbol with a
580 * string initializer.
582 * Just for the heck of it, allow any constant string
585 if (arg
->type
== EXPR_SYMBOL
) {
586 struct symbol
*sym
= arg
->symbol
;
587 if (sym
->initializer
&& sym
->initializer
->type
== EXPR_STRING
) {
588 struct string
*string
= sym
->initializer
->string
;
589 warning(expr
->pos
, "%*s", string
->length
-1, string
->data
);
595 * Any other argument is a conditional. If it's
596 * non-constant, or it is false, we exit and do
597 * not print any warning.
599 if (arg
->type
!= EXPR_VALUE
)
603 } END_FOR_EACH_PTR(arg
);
605 expr
->type
= EXPR_VALUE
;
611 * Type and storage class keywords need to have the symbols
612 * created for them, so that the parser can have enough semantic
613 * information to do parsing.
615 * "double" == "long float", "long double" == "long long float"
617 static struct sym_init
{
619 struct symbol
*base_type
;
620 unsigned int modifiers
;
621 struct symbol_op
*op
;
622 } symbol_init_table
[] = {
624 { "auto", NULL
, MOD_AUTO
},
625 { "register", NULL
, MOD_REGISTER
},
626 { "static", NULL
, MOD_STATIC
},
627 { "extern", NULL
, MOD_EXTERN
},
629 /* Type specifiers */
630 { "void", &void_ctype
, 0 },
631 { "char", NULL
, MOD_CHAR
},
632 { "short", NULL
, MOD_SHORT
},
633 { "int", &int_type
, 0 },
634 { "long", NULL
, MOD_LONG
},
635 { "float", &fp_type
, 0 },
636 { "double", &fp_type
, MOD_LONG
},
637 { "signed", NULL
, MOD_SIGNED
| MOD_EXPLICITLY_SIGNED
},
638 { "__signed", NULL
, MOD_SIGNED
| MOD_EXPLICITLY_SIGNED
},
639 { "__signed__", NULL
, MOD_SIGNED
| MOD_EXPLICITLY_SIGNED
},
640 { "unsigned", NULL
, MOD_UNSIGNED
},
641 { "__label__", &label_ctype
, MOD_LABEL
| MOD_UNSIGNED
},
642 { "_Bool", &bool_ctype
, MOD_UNSIGNED
},
644 /* Type qualifiers */
645 { "const", NULL
, MOD_CONST
},
646 { "__const", NULL
, MOD_CONST
},
647 { "__const__", NULL
, MOD_CONST
},
648 { "volatile", NULL
, MOD_VOLATILE
},
649 { "__volatile", NULL
, MOD_VOLATILE
},
650 { "__volatile__", NULL
, MOD_VOLATILE
},
652 /* Predeclared types */
653 { "__builtin_va_list", &int_type
, 0 },
656 { "typedef", NULL
, MOD_TYPEDEF
},
659 { "typeof", NULL
, MOD_TYPEOF
},
660 { "__typeof", NULL
, MOD_TYPEOF
},
661 { "__typeof__", NULL
, MOD_TYPEOF
},
664 { "attribute", NULL
, MOD_ATTRIBUTE
},
666 { "__attribute", NULL
, MOD_ATTRIBUTE
},
667 { "__attribute__", NULL
, MOD_ATTRIBUTE
},
669 { "struct", NULL
, MOD_STRUCTOF
},
670 { "union", NULL
, MOD_UNIONOF
},
671 { "enum", NULL
, MOD_ENUMOF
},
673 { "inline", NULL
, MOD_INLINE
},
674 { "__inline", NULL
, MOD_INLINE
},
675 { "__inline__", NULL
, MOD_INLINE
},
677 /* Ignored for now.. */
678 { "restrict", NULL
, 0 },
679 { "__restrict", NULL
, 0 },
684 static struct symbol_op constant_p_op
= {
685 .evaluate
= evaluate_to_integer
,
686 .expand
= expand_constant_p
689 static struct symbol_op safe_p_op
= {
690 .evaluate
= evaluate_to_integer
,
691 .expand
= expand_safe_p
694 static struct symbol_op warning_op
= {
695 .evaluate
= evaluate_to_integer
,
696 .expand
= expand_warning
699 static struct symbol_op expect_op
= {
700 .evaluate
= evaluate_expect
,
701 .expand
= expand_expect
704 static struct symbol_op choose_op
= {
705 .evaluate
= evaluate_choose
,
706 .args
= arguments_choose
,
712 static struct symbol builtin_fn_type
= { .type
= SYM_FN
/* , .variadic =1 */ };
713 static struct sym_init eval_init_table
[] = {
714 { "__builtin_constant_p", &builtin_fn_type
, MOD_TOPLEVEL
, &constant_p_op
},
715 { "__builtin_safe_p", &builtin_fn_type
, MOD_TOPLEVEL
, &safe_p_op
},
716 { "__builtin_warning", &builtin_fn_type
, MOD_TOPLEVEL
, &warning_op
},
717 { "__builtin_expect", &builtin_fn_type
, MOD_TOPLEVEL
, &expect_op
},
718 { "__builtin_choose_expr", &builtin_fn_type
, MOD_TOPLEVEL
, &choose_op
},
726 struct symbol int_type
,
730 * C types (ie actual instances that the abstract types
733 struct symbol bool_ctype
, void_ctype
, type_ctype
,
734 char_ctype
, schar_ctype
, uchar_ctype
,
735 short_ctype
, sshort_ctype
, ushort_ctype
,
736 int_ctype
, sint_ctype
, uint_ctype
,
737 long_ctype
, slong_ctype
, ulong_ctype
,
738 llong_ctype
, sllong_ctype
, ullong_ctype
,
739 float_ctype
, double_ctype
, ldouble_ctype
,
740 string_ctype
, ptr_ctype
, lazy_ptr_ctype
,
741 incomplete_ctype
, label_ctype
, bad_ctype
;
743 struct symbol zero_int
;
745 #define __INIT_IDENT(str, res) { .len = sizeof(str)-1, .name = str, .reserved = res }
746 #define __IDENT(n,str,res) \
747 struct ident n = __INIT_IDENT(str,res)
749 #include "ident-list.h"
751 void init_symbols(void)
753 int stream
= init_stream("builtin", -1, includepath
);
754 struct sym_init
*ptr
;
756 #define __IDENT(n,str,res) \
758 #include "ident-list.h"
760 for (ptr
= symbol_init_table
; ptr
->name
; ptr
++) {
762 sym
= create_symbol(stream
, ptr
->name
, SYM_NODE
, NS_TYPEDEF
);
763 sym
->ident
->reserved
= 1;
764 sym
->ctype
.base_type
= ptr
->base_type
;
765 sym
->ctype
.modifiers
= ptr
->modifiers
;
768 builtin_fn_type
.variadic
= 1;
769 for (ptr
= eval_init_table
; ptr
->name
; ptr
++) {
771 sym
= create_symbol(stream
, ptr
->name
, SYM_NODE
, NS_SYMBOL
);
772 sym
->ctype
.base_type
= ptr
->base_type
;
773 sym
->ctype
.modifiers
= ptr
->modifiers
;
778 #define MOD_ESIGNED (MOD_SIGNED | MOD_EXPLICITLY_SIGNED)
779 #define MOD_LL (MOD_LONG | MOD_LONGLONG)
780 static const struct ctype_declare
{
783 unsigned long modifiers
;
786 struct symbol
*base_type
;
787 } ctype_declaration
[] = {
788 { &bool_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
, &bits_in_bool
, &max_int_alignment
, &int_type
},
789 { &void_ctype
, SYM_BASETYPE
, 0, NULL
, NULL
, NULL
},
790 { &type_ctype
, SYM_BASETYPE
, MOD_TYPE
, NULL
, NULL
, NULL
},
791 { &incomplete_ctype
,SYM_BASETYPE
, 0, NULL
, NULL
, NULL
},
792 { &bad_ctype
, SYM_BASETYPE
, 0, NULL
, NULL
, NULL
},
794 { &char_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_CHAR
, &bits_in_char
, &max_int_alignment
, &int_type
},
795 { &schar_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_CHAR
, &bits_in_char
, &max_int_alignment
, &int_type
},
796 { &uchar_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_CHAR
, &bits_in_char
, &max_int_alignment
, &int_type
},
797 { &short_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_SHORT
, &bits_in_short
, &max_int_alignment
, &int_type
},
798 { &sshort_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_SHORT
, &bits_in_short
, &max_int_alignment
, &int_type
},
799 { &ushort_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_SHORT
, &bits_in_short
, &max_int_alignment
, &int_type
},
800 { &int_ctype
, SYM_BASETYPE
, MOD_SIGNED
, &bits_in_int
, &max_int_alignment
, &int_type
},
801 { &sint_ctype
, SYM_BASETYPE
, MOD_ESIGNED
, &bits_in_int
, &max_int_alignment
, &int_type
},
802 { &uint_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
, &bits_in_int
, &max_int_alignment
, &int_type
},
803 { &long_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_LONG
, &bits_in_long
, &max_int_alignment
, &int_type
},
804 { &slong_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_LONG
, &bits_in_long
, &max_int_alignment
, &int_type
},
805 { &ulong_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_LONG
, &bits_in_long
, &max_int_alignment
, &int_type
},
806 { &llong_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_LL
, &bits_in_longlong
, &max_int_alignment
, &int_type
},
807 { &sllong_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_LL
, &bits_in_longlong
, &max_int_alignment
, &int_type
},
808 { &ullong_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_LL
, &bits_in_longlong
, &max_int_alignment
, &int_type
},
810 { &float_ctype
, SYM_BASETYPE
, 0, &bits_in_float
, &max_fp_alignment
, &fp_type
},
811 { &double_ctype
, SYM_BASETYPE
, MOD_LONG
, &bits_in_double
, &max_fp_alignment
, &fp_type
},
812 { &ldouble_ctype
, SYM_BASETYPE
, MOD_LONG
| MOD_LONGLONG
, &bits_in_longdouble
, &max_fp_alignment
, &fp_type
},
814 { &string_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &char_ctype
},
815 { &ptr_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &void_ctype
},
816 { &label_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &void_ctype
},
817 { &lazy_ptr_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &void_ctype
},
823 void init_ctype(void)
825 const struct ctype_declare
*ctype
;
827 for (ctype
= ctype_declaration
; ctype
->ptr
; ctype
++) {
828 struct symbol
*sym
= ctype
->ptr
;
829 unsigned long bit_size
= ctype
->bit_size
? *ctype
->bit_size
: -1;
830 unsigned long maxalign
= ctype
->maxalign
? *ctype
->maxalign
: 0;
831 unsigned long alignment
= bit_size
>> 3;
833 if (alignment
> maxalign
)
834 alignment
= maxalign
;
835 sym
->type
= ctype
->type
;
836 sym
->bit_size
= bit_size
;
837 sym
->ctype
.alignment
= alignment
;
838 sym
->ctype
.base_type
= ctype
->base_type
;
839 sym
->ctype
.modifiers
= ctype
->modifiers
;