1core-y += arch/um/sys-i386/ arch/x86/crypto/ 2 3TOP_ADDR := $(CONFIG_TOP_ADDR) 4 5START := 0x8048000 6 7LDFLAGS += -m elf_i386 8ELF_ARCH := $(SUBARCH) 9ELF_FORMAT := elf32-$(SUBARCH) 10OBJCOPYFLAGS := -O binary -R .note -R .comment -S 11HEADER_ARCH := x86 12CHECKFLAGS += -D__i386__ 13 14ifeq ("$(origin SUBARCH)", "command line") 15ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)") 16KBUILD_CFLAGS += $(call cc-option,-m32) 17KBUILD_AFLAGS += $(call cc-option,-m32) 18LINK-y += $(call cc-option,-m32) 19UML_OBJCOPYFLAGS += -F $(ELF_FORMAT) 20 21export LDFLAGS HOSTCFLAGS HOSTLDFLAGS UML_OBJCOPYFLAGS 22endif 23endif 24 25# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y. 26include $(srctree)/arch/x86/Makefile_32.cpu 27 28# prevent gcc from keeping the stack 16 byte aligned. Taken from i386. 29cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) 30 31# Prevent sprintf in nfsd from being converted to strcpy and resulting in 32# an unresolved reference. 33cflags-y += -ffreestanding 34 35# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use 36# a lot more stack due to the lack of sharing of stacklots. Also, gcc 37# 4.3.0 needs -funit-at-a-time for extern inline functions. 38KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \ 39 echo $(call cc-option,-fno-unit-at-a-time); \ 40 else echo $(call cc-option,-funit-at-a-time); fi ;) 41 42KBUILD_CFLAGS += $(cflags-y) 43