Changeset 2041 for trunk/src/kmk/make.h

Timestamp:

Nov 3, 2008, 1:15:48 PM (17 years ago)

Author:

bird

Message:

kmk: fixed gcc 3.2.3 issue.

File:

• trunk/src/kmk/make.h (modified) (2 diffs)

trunk/src/kmk/make.h

@@ -606 +606 @@
 alloccache_free (struct alloccache *cache, void *item)
 {
-  struct alloccache_free_ent *f = (struct alloccache_free_ent *)item; /* aliasing problem :-( */
+  struct alloccache_free_ent *f = (struct alloccache_free_ent *)item;
 #if 0 /*ndef NDEBUG*/
   struct alloccache_free_ent *c;
@@ -613 +613 @@
     MY_ASSERT_MSG (c != f && i < 0x10000000,
                    ("i=%u total_count=%u\n", i, cache->total_count));
+#endif
+#ifdef __GNUC__ 
+/* GCC 3.2.3 has been observed having aliasing issues, so, setup a 
+   barrier for it here. */
+# if (__GNUC__ == 3 && __GNUC_PATCHLEVEL__ <= 3) || __GNUC__ < 3
+  __asm__ __volatile__ ("" ::: "memory");
+# endif
 #endif