diff options
Diffstat (limited to 'arch/i386/Makefile')
| -rw-r--r-- | arch/i386/Makefile | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/i386/Makefile b/arch/i386/Makefile index 425361fd9..2fa008fa7 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile @@ -11,3 +11,11 @@ ifeq ($(CONFIG_STACK_OPTIMIZATION_386),y) # from aligning stack to 16 bytes. (Which is gcc's way of supporting SSE). CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2,) endif + +# "Control how GCC aligns variables. +# Supported values for type are compat uses increased alignment value +# compatible uses GCC 4.8 and earlier, abi uses alignment value as specified by the psABI, +# and cacheline uses increased alignment value to match the cache line size. +# compat is the default." +# "abi" seems to be somewhat successful in preventing oversealous data alignment. +CFLAGS += $(call cc-option,-malign-data=abi,) |