Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

# 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__

ifndef CONFIG_FSL_BOOKE
KBUILD_CFLAGS   += -mstring
endif

cpu-as-$(CONFIG_4xx)            += -Wa,-m405
cpu-as-$(CONFIG_6xx)            += -Wa,-maltivec
cpu-as-$(CONFIG_E500)           += -Wa,-me500
cpu-as-$(CONFIG_E200)           += -Wa,-me200

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_FSL_BOOKE)        := arch/ppc/kernel/head_fsl_booke.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_83xx)             += arch/ppc/platforms/83xx/
core-$(CONFIG_85xx)             += arch/ppc/platforms/85xx/
core-$(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)