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
19 #include "expression.h"
24 * Secondary symbol list for stuff that needs to be output because it
27 struct symbol_list
*translation_unit_used_list
= NULL
;
30 * If the symbol is an inline symbol, add it to the list of symbols to parse
32 void access_symbol(struct symbol
*sym
)
34 if (sym
->ctype
.modifiers
& MOD_INLINE
) {
35 if (!(sym
->ctype
.modifiers
& MOD_ACCESSED
)) {
36 add_symbol(&translation_unit_used_list
, sym
);
37 sym
->ctype
.modifiers
|= MOD_ACCESSED
;
42 struct symbol
*lookup_symbol(struct ident
*ident
, enum namespace ns
)
46 for (sym
= ident
->symbols
; sym
; sym
= sym
->next_id
) {
47 if (sym
->namespace & ns
) {
55 struct context
*alloc_context(void)
57 return __alloc_context(0);
60 struct symbol
*alloc_symbol(struct position pos
, int type
)
62 struct symbol
*sym
= __alloc_symbol(0);
68 struct struct_union_info
{
69 unsigned long max_align
;
70 unsigned long bit_size
;
75 * Unions are fairly easy to lay out ;)
77 static void lay_out_union(struct symbol
*sym
, struct struct_union_info
*info
)
79 examine_symbol_type(sym
);
81 // Unnamed bitfields do not affect alignment.
82 if (sym
->ident
|| !is_bitfield_type(sym
)) {
83 if (sym
->ctype
.alignment
> info
->max_align
)
84 info
->max_align
= sym
->ctype
.alignment
;
87 if (sym
->bit_size
> info
->bit_size
)
88 info
->bit_size
= sym
->bit_size
;
93 static int bitfield_base_size(struct symbol
*sym
)
95 if (sym
->type
== SYM_NODE
)
96 sym
= sym
->ctype
.base_type
;
97 if (sym
->type
== SYM_BITFIELD
)
98 sym
= sym
->ctype
.base_type
;
103 * Structures are a bit more interesting to lay out
105 static void lay_out_struct(struct symbol
*sym
, struct struct_union_info
*info
)
107 unsigned long bit_size
, align_bit_mask
;
110 examine_symbol_type(sym
);
112 // Unnamed bitfields do not affect alignment.
113 if (sym
->ident
|| !is_bitfield_type(sym
)) {
114 if (sym
->ctype
.alignment
> info
->max_align
)
115 info
->max_align
= sym
->ctype
.alignment
;
118 bit_size
= info
->bit_size
;
119 base_size
= sym
->bit_size
;
122 * Unsized arrays cause us to not align the resulting
126 info
->align_size
= 0;
130 align_bit_mask
= (sym
->ctype
.alignment
<< 3) - 1;
133 * Bitfields have some very special rules..
135 if (is_bitfield_type (sym
)) {
136 unsigned long bit_offset
= bit_size
& align_bit_mask
;
137 int room
= bitfield_base_size(sym
) - bit_offset
;
138 // Zero-width fields just fill up the unit.
139 int width
= base_size
? : (bit_offset
? room
: 0);
142 bit_size
= (bit_size
+ align_bit_mask
) & ~align_bit_mask
;
145 sym
->offset
= (bit_size
- bit_offset
) >> 3;
146 sym
->bit_offset
= bit_offset
;
147 sym
->ctype
.base_type
->bit_offset
= bit_offset
;
148 info
->bit_size
= bit_size
+ width
;
149 // warning (sym->pos, "bitfield: offset=%d:%d size=:%d", sym->offset, sym->bit_offset, width);
155 * Otherwise, just align it right and add it up..
157 bit_size
= (bit_size
+ align_bit_mask
) & ~align_bit_mask
;
158 sym
->offset
= bit_size
>> 3;
160 info
->bit_size
= bit_size
+ base_size
;
161 // warning (sym->pos, "regular: offset=%d", sym->offset);
164 static struct symbol
* examine_struct_union_type(struct symbol
*sym
, int advance
)
166 struct struct_union_info info
= {
171 unsigned long bit_size
, bit_align
;
172 void (*fn
)(struct symbol
*, struct struct_union_info
*);
173 struct symbol
*member
;
175 fn
= advance
? lay_out_struct
: lay_out_union
;
176 FOR_EACH_PTR(sym
->symbol_list
, member
) {
178 } END_FOR_EACH_PTR(member
);
180 if (!sym
->ctype
.alignment
)
181 sym
->ctype
.alignment
= info
.max_align
;
182 bit_size
= info
.bit_size
;
183 if (info
.align_size
) {
184 bit_align
= (sym
->ctype
.alignment
<< 3)-1;
185 bit_size
= (bit_size
+ bit_align
) & ~bit_align
;
187 sym
->bit_size
= bit_size
;
191 static struct symbol
*examine_base_type(struct symbol
*sym
)
193 struct symbol
*base_type
;
195 /* Check the base type */
196 base_type
= sym
->ctype
.base_type
;
198 base_type
= examine_symbol_type(base_type
);
200 /* "typeof" can cause this */
201 if (base_type
&& base_type
->type
== SYM_NODE
)
202 merge_type(sym
, base_type
);
207 static struct symbol
* examine_array_type(struct symbol
*sym
)
209 struct symbol
*base_type
= examine_base_type(sym
);
210 unsigned long bit_size
, alignment
;
214 bit_size
= base_type
->bit_size
* get_expression_value(sym
->array_size
);
215 if (!sym
->array_size
|| sym
->array_size
->type
!= EXPR_VALUE
)
217 alignment
= base_type
->ctype
.alignment
;
218 if (!sym
->ctype
.alignment
)
219 sym
->ctype
.alignment
= alignment
;
220 sym
->bit_size
= bit_size
;
224 static struct symbol
*examine_bitfield_type(struct symbol
*sym
)
226 struct symbol
*base_type
= examine_base_type(sym
);
227 unsigned long bit_size
, alignment
, modifiers
;
231 bit_size
= base_type
->bit_size
;
232 if (sym
->bit_size
> bit_size
)
233 warning(sym
->pos
, "impossible field-width, %d, for this type", sym
->bit_size
);
235 alignment
= base_type
->ctype
.alignment
;
236 if (!sym
->ctype
.alignment
)
237 sym
->ctype
.alignment
= alignment
;
238 modifiers
= base_type
->ctype
.modifiers
;
240 /* Bitfields are unsigned, unless the base type was explicitly signed */
241 if (!(modifiers
& MOD_EXPLICITLY_SIGNED
))
242 modifiers
= (modifiers
& ~MOD_SIGNED
) | MOD_UNSIGNED
;
243 sym
->ctype
.modifiers
|= modifiers
& MOD_SIGNEDNESS
;
248 * "typeof" will have to merge the types together
250 void merge_type(struct symbol
*sym
, struct symbol
*base_type
)
252 sym
->ctype
.as
|= base_type
->ctype
.as
;
253 sym
->ctype
.modifiers
|= (base_type
->ctype
.modifiers
& ~MOD_STORAGE
);
254 concat_ptr_list((struct ptr_list
*)base_type
->ctype
.contexts
,
255 (struct ptr_list
**)&sym
->ctype
.contexts
);
256 sym
->ctype
.base_type
= base_type
->ctype
.base_type
;
259 static int count_array_initializer(struct symbol
*t
, struct expression
*expr
)
265 * Arrays of character types are special; they can be initialized by
266 * string literal _or_ by string literal in braces. The latter means
267 * that with T x[] = {<string literal>} number of elements in x depends
268 * on T - if it's a character type, we get the length of string literal
269 * (including NUL), otherwise we have one element here.
271 if (t
->ctype
.base_type
== &int_type
&& t
->ctype
.modifiers
& MOD_CHAR
)
274 switch (expr
->type
) {
275 case EXPR_INITIALIZER
: {
276 struct expression
*entry
;
279 FOR_EACH_PTR(expr
->expr_list
, entry
) {
281 switch (entry
->type
) {
283 if (entry
->idx_to
>= nr
)
284 nr
= entry
->idx_to
+1;
288 str_len
= entry
->string
->length
;
292 } END_FOR_EACH_PTR(entry
);
293 if (count
== 1 && str_len
)
299 nr
= expr
->string
->length
;
306 static struct symbol
* examine_node_type(struct symbol
*sym
)
308 struct symbol
*base_type
= examine_base_type(sym
);
310 unsigned long alignment
, modifiers
;
312 /* SYM_NODE - figure out what the type of the node was.. */
313 modifiers
= sym
->ctype
.modifiers
;
320 bit_size
= base_type
->bit_size
;
321 alignment
= base_type
->ctype
.alignment
;
323 /* Pick up signedness information into the node */
324 sym
->ctype
.modifiers
|= (MOD_SIGNEDNESS
& base_type
->ctype
.modifiers
);
326 if (!sym
->ctype
.alignment
)
327 sym
->ctype
.alignment
= alignment
;
329 /* Unsized array? The size might come from the initializer.. */
330 if (bit_size
< 0 && base_type
->type
== SYM_ARRAY
&& sym
->initializer
) {
331 struct symbol
*node_type
= base_type
->ctype
.base_type
;
332 int count
= count_array_initializer(node_type
, sym
->initializer
);
334 if (node_type
&& node_type
->bit_size
>= 0)
335 bit_size
= node_type
->bit_size
* count
;
338 sym
->bit_size
= bit_size
;
342 static struct symbol
*examine_enum_type(struct symbol
*sym
)
344 struct symbol
*base_type
= examine_base_type(sym
);
346 sym
->ctype
.modifiers
|= (base_type
->ctype
.modifiers
& MOD_SIGNEDNESS
);
347 sym
->bit_size
= bits_in_enum
;
348 if (base_type
->bit_size
> sym
->bit_size
)
349 sym
->bit_size
= base_type
->bit_size
;
350 sym
->ctype
.alignment
= enum_alignment
;
351 if (base_type
->ctype
.alignment
> sym
->ctype
.alignment
)
352 sym
->ctype
.alignment
= base_type
->ctype
.alignment
;
356 static struct symbol
*examine_pointer_type(struct symbol
*sym
)
359 * We need to set the pointer size first, and
360 * examine the thing we point to only afterwards.
361 * That's because this pointer type may end up
362 * being needed for the base type size evaluation.
365 sym
->bit_size
= bits_in_pointer
;
366 if (!sym
->ctype
.alignment
)
367 sym
->ctype
.alignment
= pointer_alignment
;
372 * Fill in type size and alignment information for
373 * regular SYM_TYPE things.
375 struct symbol
*examine_symbol_type(struct symbol
* sym
)
388 return examine_node_type(sym
);
390 return examine_array_type(sym
);
392 return examine_struct_union_type(sym
, 1);
394 return examine_struct_union_type(sym
, 0);
396 return examine_pointer_type(sym
);
398 return examine_enum_type(sym
);
400 return examine_bitfield_type(sym
);
402 /* Size and alignment had better already be set up */
405 struct symbol
*base
= evaluate_expression(sym
->initializer
);
407 if (is_bitfield_type(base
))
408 warning(base
->pos
, "typeof applied to bitfield type");
409 if (base
->type
== SYM_NODE
)
410 base
= base
->ctype
.base_type
;
411 if (base
->type
== SYM_RESTRICT
) {
412 sym
->type
= SYM_NODE
;
413 sym
->ctype
.modifiers
= 0;
414 sym
->ctype
.base_type
= base
;
415 return examine_node_type(sym
);
422 case SYM_PREPROCESSOR
:
423 sparse_error(sym
->pos
, "ctype on preprocessor command? (%s)", show_ident(sym
->ident
));
425 case SYM_UNINITIALIZED
:
426 sparse_error(sym
->pos
, "ctype on uninitialized symbol %p", sym
);
429 examine_base_type(sym
);
432 examine_base_type(sym
);
435 sparse_error(sym
->pos
, "Examining unknown symbol type %d", sym
->type
);
441 static struct symbol_list
*restr
, *fouled
;
443 void create_fouled(struct symbol
*type
)
445 if (type
->bit_size
< bits_in_int
) {
446 struct symbol
*new = alloc_symbol(type
->pos
, type
->type
);
448 new->bit_size
= bits_in_int
;
449 new->type
= SYM_FOULED
;
450 new->ctype
.base_type
= type
;
451 add_symbol(&restr
, type
);
452 add_symbol(&fouled
, new);
456 struct symbol
*befoul(struct symbol
*type
)
458 struct symbol
*t1
, *t2
;
459 while (type
->type
== SYM_NODE
)
460 type
= type
->ctype
.base_type
;
461 PREPARE_PTR_LIST(restr
, t1
);
462 PREPARE_PTR_LIST(fouled
, t2
);
476 void check_declaration(struct symbol
*sym
)
479 struct symbol
*next
= sym
;
481 while ((next
= next
->next_id
) != NULL
) {
482 if (next
->namespace != sym
->namespace)
484 if (sym
->scope
== next
->scope
) {
485 sym
->same_symbol
= next
;
488 if (sym
->ctype
.modifiers
& next
->ctype
.modifiers
& MOD_EXTERN
) {
489 sym
->same_symbol
= next
;
493 if (!Wshadow
|| warned
)
495 if (get_sym_type(next
) == SYM_FN
)
498 warning(sym
->pos
, "symbol '%s' shadows an earlier one", show_ident(sym
->ident
));
499 info(next
->pos
, "originally declared here");
503 void bind_symbol(struct symbol
*sym
, struct ident
*ident
, enum namespace ns
)
507 sparse_error(sym
->pos
, "internal error: symbol type already bound");
510 if (ident
->reserved
&& (ns
& (NS_TYPEDEF
| NS_STRUCT
| NS_LABEL
| NS_SYMBOL
))) {
511 sparse_error(sym
->pos
, "Trying to use reserved word '%s' as identifier", show_ident(ident
));
515 sym
->next_id
= ident
->symbols
;
516 ident
->symbols
= sym
;
517 sym
->id_list
= &ident
->symbols
;
518 if (sym
->ident
&& sym
->ident
!= ident
)
519 warning(sym
->pos
, "Symbol '%s' already bound", show_ident(sym
->ident
));
523 if (ns
== NS_SYMBOL
&& toplevel(scope
)) {
524 unsigned mod
= MOD_ADDRESSABLE
| MOD_TOPLEVEL
;
525 scope
= global_scope
;
526 if (sym
->ctype
.modifiers
& MOD_STATIC
) {
530 sym
->ctype
.modifiers
|= mod
;
535 scope
= function_scope
;
536 bind_scope(sym
, scope
);
539 struct symbol
*create_symbol(int stream
, const char *name
, int type
, int namespace)
541 struct token
*token
= built_in_token(stream
, name
);
542 struct symbol
*sym
= alloc_symbol(token
->pos
, type
);
544 bind_symbol(sym
, token
->ident
, namespace);
548 static int evaluate_to_integer(struct expression
*expr
)
550 expr
->ctype
= &int_ctype
;
554 static int evaluate_expect(struct expression
*expr
)
556 /* Should we evaluate it to return the type of the first argument? */
557 expr
->ctype
= &int_ctype
;
561 static int arguments_choose(struct expression
*expr
)
563 struct expression_list
*arglist
= expr
->args
;
564 struct expression
*arg
;
567 FOR_EACH_PTR (arglist
, arg
) {
568 if (!evaluate_expression(arg
))
571 } END_FOR_EACH_PTR(arg
);
573 sparse_error(expr
->pos
,
574 "not enough arguments for __builtin_choose_expr");
577 sparse_error(expr
->pos
,
578 "too many arguments for __builtin_choose_expr");
584 static int evaluate_choose(struct expression
*expr
)
586 struct expression_list
*list
= expr
->args
;
587 struct expression
*arg
, *args
[3];
590 /* there will be exactly 3; we'd already verified that */
591 FOR_EACH_PTR(list
, arg
) {
593 } END_FOR_EACH_PTR(arg
);
595 *expr
= get_expression_value(args
[0]) ? *args
[1] : *args
[2];
600 static int expand_expect(struct expression
*expr
, int cost
)
602 struct expression
*arg
= first_ptr_list((struct ptr_list
*) expr
->args
);
610 * __builtin_warning() has type "int" and always returns 1,
611 * so that you can use it in conditionals or whatever
613 static int expand_warning(struct expression
*expr
, int cost
)
615 struct expression
*arg
;
616 struct expression_list
*arglist
= expr
->args
;
618 FOR_EACH_PTR (arglist
, arg
) {
620 * Constant strings get printed out as a warning. By the
621 * time we get here, the EXPR_STRING has been fully
622 * evaluated, so by now it's an anonymous symbol with a
623 * string initializer.
625 * Just for the heck of it, allow any constant string
628 if (arg
->type
== EXPR_SYMBOL
) {
629 struct symbol
*sym
= arg
->symbol
;
630 if (sym
->initializer
&& sym
->initializer
->type
== EXPR_STRING
) {
631 struct string
*string
= sym
->initializer
->string
;
632 warning(expr
->pos
, "%*s", string
->length
-1, string
->data
);
638 * Any other argument is a conditional. If it's
639 * non-constant, or it is false, we exit and do
640 * not print any warning.
642 if (arg
->type
!= EXPR_VALUE
)
646 } END_FOR_EACH_PTR(arg
);
648 expr
->type
= EXPR_VALUE
;
654 * Type and storage class keywords need to have the symbols
655 * created for them, so that the parser can have enough semantic
656 * information to do parsing.
658 * "double" == "long float", "long double" == "long long float"
660 static struct sym_init
{
662 struct symbol
*base_type
;
663 unsigned int modifiers
;
664 struct symbol_op
*op
;
665 } symbol_init_table
[] = {
667 { "auto", NULL
, MOD_AUTO
},
668 { "register", NULL
, MOD_REGISTER
},
669 { "static", NULL
, MOD_STATIC
},
670 { "extern", NULL
, MOD_EXTERN
},
672 /* Type specifiers */
673 { "void", &void_ctype
, 0 },
674 { "char", NULL
, MOD_CHAR
},
675 { "short", NULL
, MOD_SHORT
},
676 { "int", &int_type
, 0 },
677 { "long", NULL
, MOD_LONG
},
678 { "float", &fp_type
, 0 },
679 { "double", &fp_type
, MOD_LONG
},
680 { "signed", NULL
, MOD_SIGNED
| MOD_EXPLICITLY_SIGNED
},
681 { "__signed", NULL
, MOD_SIGNED
| MOD_EXPLICITLY_SIGNED
},
682 { "__signed__", NULL
, MOD_SIGNED
| MOD_EXPLICITLY_SIGNED
},
683 { "unsigned", NULL
, MOD_UNSIGNED
},
684 { "__label__", &label_ctype
, MOD_LABEL
| MOD_UNSIGNED
},
685 { "_Bool", &bool_ctype
, MOD_UNSIGNED
},
687 /* Predeclared types */
688 { "__builtin_va_list", &int_type
, 0 },
693 static struct symbol_op constant_p_op
= {
694 .evaluate
= evaluate_to_integer
,
695 .expand
= expand_constant_p
698 static struct symbol_op safe_p_op
= {
699 .evaluate
= evaluate_to_integer
,
700 .expand
= expand_safe_p
703 static struct symbol_op warning_op
= {
704 .evaluate
= evaluate_to_integer
,
705 .expand
= expand_warning
708 static struct symbol_op expect_op
= {
709 .evaluate
= evaluate_expect
,
710 .expand
= expand_expect
713 static struct symbol_op choose_op
= {
714 .evaluate
= evaluate_choose
,
715 .args
= arguments_choose
,
721 static struct symbol builtin_fn_type
= { .type
= SYM_FN
/* , .variadic =1 */ };
722 static struct sym_init eval_init_table
[] = {
723 { "__builtin_constant_p", &builtin_fn_type
, MOD_TOPLEVEL
, &constant_p_op
},
724 { "__builtin_safe_p", &builtin_fn_type
, MOD_TOPLEVEL
, &safe_p_op
},
725 { "__builtin_warning", &builtin_fn_type
, MOD_TOPLEVEL
, &warning_op
},
726 { "__builtin_expect", &builtin_fn_type
, MOD_TOPLEVEL
, &expect_op
},
727 { "__builtin_choose_expr", &builtin_fn_type
, MOD_TOPLEVEL
, &choose_op
},
735 struct symbol int_type
,
739 * C types (i.e. actual instances that the abstract types
742 struct symbol bool_ctype
, void_ctype
, type_ctype
,
743 char_ctype
, schar_ctype
, uchar_ctype
,
744 short_ctype
, sshort_ctype
, ushort_ctype
,
745 int_ctype
, sint_ctype
, uint_ctype
,
746 long_ctype
, slong_ctype
, ulong_ctype
,
747 llong_ctype
, sllong_ctype
, ullong_ctype
,
748 float_ctype
, double_ctype
, ldouble_ctype
,
749 string_ctype
, ptr_ctype
, lazy_ptr_ctype
,
750 incomplete_ctype
, label_ctype
, bad_ctype
;
752 struct symbol zero_int
;
754 #define __INIT_IDENT(str, res) { .len = sizeof(str)-1, .name = str, .reserved = res }
755 #define __IDENT(n,str,res) \
756 struct ident n = __INIT_IDENT(str,res)
758 #include "ident-list.h"
760 void init_symbols(void)
762 int stream
= init_stream("builtin", -1, includepath
);
763 struct sym_init
*ptr
;
765 #define __IDENT(n,str,res) \
767 #include "ident-list.h"
770 for (ptr
= symbol_init_table
; ptr
->name
; ptr
++) {
772 sym
= create_symbol(stream
, ptr
->name
, SYM_NODE
, NS_TYPEDEF
);
773 sym
->ident
->reserved
= 1;
774 sym
->ctype
.base_type
= ptr
->base_type
;
775 sym
->ctype
.modifiers
= ptr
->modifiers
;
778 builtin_fn_type
.variadic
= 1;
779 for (ptr
= eval_init_table
; ptr
->name
; ptr
++) {
781 sym
= create_symbol(stream
, ptr
->name
, SYM_NODE
, NS_SYMBOL
);
782 sym
->ctype
.base_type
= ptr
->base_type
;
783 sym
->ctype
.modifiers
= ptr
->modifiers
;
788 #define MOD_ESIGNED (MOD_SIGNED | MOD_EXPLICITLY_SIGNED)
789 #define MOD_LL (MOD_LONG | MOD_LONGLONG)
790 static const struct ctype_declare
{
793 unsigned long modifiers
;
796 struct symbol
*base_type
;
797 } ctype_declaration
[] = {
798 { &bool_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
, &bits_in_bool
, &max_int_alignment
, &int_type
},
799 { &void_ctype
, SYM_BASETYPE
, 0, NULL
, NULL
, NULL
},
800 { &type_ctype
, SYM_BASETYPE
, MOD_TYPE
, NULL
, NULL
, NULL
},
801 { &incomplete_ctype
,SYM_BASETYPE
, 0, NULL
, NULL
, NULL
},
802 { &bad_ctype
, SYM_BASETYPE
, 0, NULL
, NULL
, NULL
},
804 { &char_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_CHAR
, &bits_in_char
, &max_int_alignment
, &int_type
},
805 { &schar_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_CHAR
, &bits_in_char
, &max_int_alignment
, &int_type
},
806 { &uchar_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_CHAR
, &bits_in_char
, &max_int_alignment
, &int_type
},
807 { &short_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_SHORT
, &bits_in_short
, &max_int_alignment
, &int_type
},
808 { &sshort_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_SHORT
, &bits_in_short
, &max_int_alignment
, &int_type
},
809 { &ushort_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_SHORT
, &bits_in_short
, &max_int_alignment
, &int_type
},
810 { &int_ctype
, SYM_BASETYPE
, MOD_SIGNED
, &bits_in_int
, &max_int_alignment
, &int_type
},
811 { &sint_ctype
, SYM_BASETYPE
, MOD_ESIGNED
, &bits_in_int
, &max_int_alignment
, &int_type
},
812 { &uint_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
, &bits_in_int
, &max_int_alignment
, &int_type
},
813 { &long_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_LONG
, &bits_in_long
, &max_int_alignment
, &int_type
},
814 { &slong_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_LONG
, &bits_in_long
, &max_int_alignment
, &int_type
},
815 { &ulong_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_LONG
, &bits_in_long
, &max_int_alignment
, &int_type
},
816 { &llong_ctype
, SYM_BASETYPE
, MOD_SIGNED
| MOD_LL
, &bits_in_longlong
, &max_int_alignment
, &int_type
},
817 { &sllong_ctype
, SYM_BASETYPE
, MOD_ESIGNED
| MOD_LL
, &bits_in_longlong
, &max_int_alignment
, &int_type
},
818 { &ullong_ctype
, SYM_BASETYPE
, MOD_UNSIGNED
| MOD_LL
, &bits_in_longlong
, &max_int_alignment
, &int_type
},
820 { &float_ctype
, SYM_BASETYPE
, 0, &bits_in_float
, &max_fp_alignment
, &fp_type
},
821 { &double_ctype
, SYM_BASETYPE
, MOD_LONG
, &bits_in_double
, &max_fp_alignment
, &fp_type
},
822 { &ldouble_ctype
, SYM_BASETYPE
, MOD_LONG
| MOD_LONGLONG
, &bits_in_longdouble
, &max_fp_alignment
, &fp_type
},
824 { &string_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &char_ctype
},
825 { &ptr_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &void_ctype
},
826 { &label_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &void_ctype
},
827 { &lazy_ptr_ctype
, SYM_PTR
, 0, &bits_in_pointer
, &pointer_alignment
, &void_ctype
},
833 void init_ctype(void)
835 const struct ctype_declare
*ctype
;
837 for (ctype
= ctype_declaration
; ctype
->ptr
; ctype
++) {
838 struct symbol
*sym
= ctype
->ptr
;
839 unsigned long bit_size
= ctype
->bit_size
? *ctype
->bit_size
: -1;
840 unsigned long maxalign
= ctype
->maxalign
? *ctype
->maxalign
: 0;
841 unsigned long alignment
= (bit_size
+ 7) >> 3;
843 if (alignment
> maxalign
)
844 alignment
= maxalign
;
845 sym
->type
= ctype
->type
;
846 sym
->bit_size
= bit_size
;
847 sym
->ctype
.alignment
= alignment
;
848 sym
->ctype
.base_type
= ctype
->base_type
;
849 sym
->ctype
.modifiers
= ctype
->modifiers
;