[PATCH 7/16] Let void have sizeof 1

[Alexey Zaytsev <alexey.zaytsev@gmail.com>]

Gcc assumes sizeof(void) being 1.
Currently sparse would generate wrong code for:

void *test(void *p) {
       p++;
       return p;
}

unsigned long test1(void *p)
{
       return sizeof(*p);
}

.L0x2b48867c1010:
       <entry-point>
       add.32      %r2 <- %arg1, $-1
       ret.32      %r2

test1:
.L0x2b48867c10b0:
       <entry-point>
       ret.32      $-1

And with bit_size set to &bits_in_char, the code looks
as expected.

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
---
 symbol.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/symbol.c b/symbol.c
index 4da253b..02844cf 100644
--- a/symbol.c
+++ b/symbol.c
@@ -834,7 +834,7 @@ static const struct ctype_declare {
 	struct symbol *base_type;
 } ctype_declaration[] = {
 	{ &bool_ctype,	    SYM_BASETYPE, MOD_UNSIGNED,		    &bits_in_bool,	     &max_int_alignment, &int_type },
-	{ &void_ctype,	    SYM_BASETYPE, 0,			    NULL,		     NULL,		 NULL },
+	{ &void_ctype,	    SYM_BASETYPE, 0,			    &bits_in_char,	     NULL,		 NULL },
 	{ &type_ctype,	    SYM_BASETYPE, MOD_TYPE,		    NULL,		     NULL,		 NULL },
 	{ &incomplete_ctype,SYM_BASETYPE, 0,			    NULL,		     NULL,		 NULL },
 	{ &bad_ctype,	    SYM_BASETYPE, 0,			    NULL,		     NULL,		 NULL },