cmake: Add ENABLE_UBSAN for -fsanitize=undefined

Change-Id: I73db5f904a7d86052aae62e67b01281763c83561
2018-10-10 15:20:08 +09:00
parent 2a63c962fc
commit 2f456b8752
5 changed files with 237 additions and 0 deletions
--- a/lib/include/bitops.h
+++ b/lib/include/bitops.h
@ -51,6 +51,7 @@ static inline unsigned long hweight_long(unsigned long w)
 #define __ALIGN_MASK(x, mask)	__ALIGN_KERNEL_MASK((x), (mask))
 #define __ALIGN_KERNEL(x, a)		__ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
 #define ALIGN(x, a)		__ALIGN_KERNEL((x), (a))
+#define IS_ALIGNED(x, a)                (((x) & ((typeof(x))(a) - 1)) == 0)

 #endif /*__ASSEMBLY__*/