Support large alignment requests

The linux kernel has some structures that are page aligned, i.e. 4096. Instead of enlarging the bit fields to specify this, use the fact that alignment is always power of two, and store only the log2 minus 1 of it. The 5 bits are enough to specify an alignment of 1 << 30.
2016-10-09 02:41:34 +02:00
parent d815a0f658
commit 8859dc9e6d
3 changed files with 38 additions and 7 deletions
--- a/tcc.h
+++ b/tcc.h
@ -379,7 +379,7 @@ typedef struct SValue {
 struct Attribute {
    unsigned
        func_call     : 3, /* calling convention (0..5), see below */
-        aligned       : 5, /* alignement (0..16) */
+        aligned       : 5, /* alignment as log2+1 (0 == unspecified) */
        packed        : 1,
        func_export   : 1,
        func_import   : 1,