| 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) |