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# 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 $(KERNELLOAD) -Bstatic
CPPFLAGS += -Iarch/$(ARCH)
AFLAGS += -Iarch/$(ARCH)
CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \
-ffixed-r2 -mmultiple
CPP = $(CC) -E $(CFLAGS)
CHECKFLAGS += -D__powerpc__
ifndef CONFIG_E500
CFLAGS += -mstring
endif
cpu-as-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
cpu-as-$(CONFIG_4xx) += -Wa,-m405
cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec
cpu-as-$(CONFIG_E500) += -Wa,-me500
AFLAGS += $(cpu-as-y)
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-$(CONFIG_FSL_BOOKE) := arch/ppc/kernel/head_fsl_booke.o
head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
core-$(CONFIG_83xx) += arch/ppc/platforms/83xx/
core-$(CONFIG_85xx) += arch/ppc/platforms/85xx/
core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
core-$(CONFIG_XMON) += arch/ppc/xmon/
core-$(CONFIG_APUS) += arch/ppc/amiga/
drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
drivers-$(CONFIG_CPM2) += arch/ppc/8260_io/
drivers-$(CONFIG_OPROFILE) += arch/ppc/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) $(clean)=arch/ppc/boot
prepare: include/asm-$(ARCH)/offsets.h checkbin
arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
include/config/MARKER
include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
$(call filechk,gen-asm-offsets)
# 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.
GCC_VERSION := $(call cc-version)
checkbin:
@if test "$(GCC_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 += include/asm-$(ARCH)/offsets.h \
arch/$(ARCH)/kernel/asm-offsets.s \
$(TOUT)
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