| core-y += arch/um/sys-i386/ arch/x86/crypto/ |
| |
| TOP_ADDR := $(CONFIG_TOP_ADDR) |
| |
| START := 0x8048000 |
| |
| LDFLAGS += -m elf_i386 |
| ELF_ARCH := $(SUBARCH) |
| ELF_FORMAT := elf32-$(SUBARCH) |
| OBJCOPYFLAGS := -O binary -R .note -R .comment -S |
| HEADER_ARCH := x86 |
| CHECKFLAGS += -D__i386__ |
| |
| ifeq ("$(origin SUBARCH)", "command line") |
| ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)") |
| KBUILD_CFLAGS += $(call cc-option,-m32) |
| KBUILD_AFLAGS += $(call cc-option,-m32) |
| LINK-y += $(call cc-option,-m32) |
| UML_OBJCOPYFLAGS += -F $(ELF_FORMAT) |
| |
| export LDFLAGS HOSTCFLAGS HOSTLDFLAGS UML_OBJCOPYFLAGS |
| endif |
| endif |
| |
| # First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y. |
| include $(srctree)/arch/x86/Makefile_32.cpu |
| |
| # prevent gcc from keeping the stack 16 byte aligned. Taken from i386. |
| cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) |
| |
| # Prevent sprintf in nfsd from being converted to strcpy and resulting in |
| # an unresolved reference. |
| cflags-y += -ffreestanding |
| |
| # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use |
| # a lot more stack due to the lack of sharing of stacklots. Also, gcc |
| # 4.3.0 needs -funit-at-a-time for extern inline functions. |
| KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \ |
| echo $(call cc-option,-fno-unit-at-a-time); \ |
| else echo $(call cc-option,-funit-at-a-time); fi ;) |
| |
| KBUILD_CFLAGS += $(cflags-y) |