# This file is included by the global makefile so that you can add your own # architecture-specific flags and dependencies. # # This file is subject to the terms and conditions of the GNU General Public # License. See the file "COPYING" in the main directory of this archive # for more details. # # Copyright (C) 1994 by Linus Torvalds # Changes for PPC by Gary Thomas # Rewritten by Cort Dougan and Paul Mackerras # # This must match PAGE_OFFSET in include/asm-ppc/page.h. KERNELLOAD := $(CONFIG_KERNEL_START) HAS_BIARCH := $(call cc-option-yn, -m32) ifeq ($(HAS_BIARCH),y) AS := $(AS) -a32 LD := $(LD) -m elf32ppc CC := $(CC) -m32 endif LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic # The -Iarch/$(ARCH)/include is temporary while we are merging KBUILD_CPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include KBUILD_AFLAGS += -Iarch/$(ARCH) KBUILD_CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \ -ffixed-r2 -mmultiple # No AltiVec instruction when building kernel KBUILD_CFLAGS += $(call cc-option, -mno-altivec) CPP = $(CC) -E $(KBUILD_CFLAGS) # Temporary hack until we have migrated to asm-powerpc LINUXINCLUDE += -Iarch/$(ARCH)/include CHECKFLAGS += -D__powerpc__ cpu-as-$(CONFIG_4xx) += -Wa,-m405 cpu-as-$(CONFIG_6xx) += -Wa,-maltivec KBUILD_AFLAGS += $(cpu-as-y) KBUILD_CFLAGS += $(cpu-as-y) # Default to the common case. KBUILD_DEFCONFIG := common_defconfig head-y := arch/ppc/kernel/head.o head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o core-y += arch/ppc/kernel/ arch/powerpc/kernel/ \ arch/ppc/platforms/ \ arch/ppc/mm/ arch/ppc/lib/ \ arch/ppc/syslib/ arch/powerpc/sysdev/ \ arch/powerpc/lib/ core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/ core-$(CONFIG_MATH_EMULATION) += arch/powerpc/math-emu/ core-$(CONFIG_XMON) += arch/ppc/xmon/ drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/ drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/ drivers-$(CONFIG_CPM2) += arch/ppc/8260_io/ drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm PHONY += $(BOOT_TARGETS) all: uImage zImage CPPFLAGS_vmlinux.lds := -Upowerpc # All the instructions talk about "make bzImage". bzImage: zImage boot := arch/$(ARCH)/boot $(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(boot) $@ uImage: vmlinux $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@ define archhelp @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)' @echo ' uImage - Create a bootable image for U-Boot / PPCBoot' @echo ' install - Install kernel using' @echo ' (your) ~/bin/installkernel or' @echo ' (distribution) /sbin/installkernel or' @echo ' install to $$(INSTALL_PATH) and run lilo' @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs' endef archclean: $(Q)$(MAKE) $(clean)=arch/ppc/boot # Temporary hack until we have migrated to asm-powerpc $(Q)rm -rf arch/$(ARCH)/include archprepare: checkbin # Temporary hack until we have migrated to asm-powerpc include/asm: arch/$(ARCH)/include/asm arch/$(ARCH)/include/asm: $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi $(Q)ln -fsn $(srctree)/include/asm-powerpc arch/$(ARCH)/include/asm # Use the file '.tmp_gas_check' for binutils tests, as gas won't output # to stdout and these checks are run even on install targets. TOUT := .tmp_gas_check # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec # instructions. # gcc-3.4 and binutils-2.14 are a fatal combination. checkbin: @if test "$(call cc-version)" = "0304" ; then \ if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ echo 'correctly with gcc-3.4 and your version of binutils.'; \ echo '*** Please upgrade your binutils or downgrade your gcc'; \ false; \ fi ; \ fi @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \ echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \ echo 'correctly with old versions of binutils.' ; \ echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \ false ; \ fi CLEAN_FILES += $(TOUT)