234 lines
7.2 KiB
Makefile
234 lines
7.2 KiB
Makefile
# This file is included by the global makefile so that you can add your own
|
|
# architecture-specific flags and dependencies. Remember to do have actions
|
|
# for "archclean" and "archdep" for cleaning up and making dependencies for
|
|
# this architecture.
|
|
#
|
|
# 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
|
|
#
|
|
|
|
HAS_BIARCH := $(call cc-option-yn, -m32)
|
|
|
|
# Set default 32 bits cross compilers for vdso and boot wrapper
|
|
CROSS32_COMPILE ?=
|
|
|
|
CROSS32CC := $(CROSS32_COMPILE)gcc
|
|
CROSS32AR := $(CROSS32_COMPILE)ar
|
|
|
|
ifeq ($(HAS_BIARCH),y)
|
|
ifeq ($(CROSS32_COMPILE),)
|
|
CROSS32CC := $(CC) -m32
|
|
CROSS32AR := GNUTARGET=elf32-powerpc $(AR)
|
|
endif
|
|
endif
|
|
|
|
export CROSS32CC CROSS32AR
|
|
|
|
ifeq ($(CROSS_COMPILE),)
|
|
KBUILD_DEFCONFIG := $(shell uname -m)_defconfig
|
|
else
|
|
KBUILD_DEFCONFIG := ppc64_defconfig
|
|
endif
|
|
|
|
ifeq ($(CONFIG_PPC64),y)
|
|
OLDARCH := ppc64
|
|
|
|
new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
|
|
|
|
ifeq ($(new_nm),y)
|
|
NM := $(NM) --synthetic
|
|
endif
|
|
|
|
else
|
|
OLDARCH := ppc
|
|
endif
|
|
|
|
# It seems there are times we use this Makefile without
|
|
# including the config file, but this replicates the old behaviour
|
|
ifeq ($(CONFIG_WORD_SIZE),)
|
|
CONFIG_WORD_SIZE := 32
|
|
endif
|
|
|
|
UTS_MACHINE := $(OLDARCH)
|
|
|
|
ifeq ($(HAS_BIARCH),y)
|
|
override AS += -a$(CONFIG_WORD_SIZE)
|
|
override LD += -m elf$(CONFIG_WORD_SIZE)ppc
|
|
override CC += -m$(CONFIG_WORD_SIZE)
|
|
override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-powerpc $(AR)
|
|
endif
|
|
|
|
LDFLAGS_vmlinux := -Bstatic
|
|
|
|
CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc
|
|
CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple
|
|
KBUILD_CPPFLAGS += -Iarch/$(ARCH)
|
|
KBUILD_AFLAGS += -Iarch/$(ARCH)
|
|
KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y)
|
|
CPP = $(CC) -E $(KBUILD_CFLAGS)
|
|
|
|
CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__
|
|
|
|
ifeq ($(CONFIG_PPC64),y)
|
|
GCC_BROKEN_VEC := $(shell if [ $(call cc-version) -lt 0400 ] ; then echo "y"; fi)
|
|
|
|
ifeq ($(CONFIG_POWER4_ONLY),y)
|
|
ifeq ($(CONFIG_ALTIVEC),y)
|
|
ifeq ($(GCC_BROKEN_VEC),y)
|
|
KBUILD_CFLAGS += $(call cc-option,-mcpu=970)
|
|
else
|
|
KBUILD_CFLAGS += $(call cc-option,-mcpu=power4)
|
|
endif
|
|
else
|
|
KBUILD_CFLAGS += $(call cc-option,-mcpu=power4)
|
|
endif
|
|
else
|
|
KBUILD_CFLAGS += $(call cc-option,-mtune=power4)
|
|
endif
|
|
else
|
|
LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
|
|
endif
|
|
|
|
ifeq ($(CONFIG_TUNE_CELL),y)
|
|
KBUILD_CFLAGS += $(call cc-option,-mtune=cell)
|
|
endif
|
|
|
|
# No AltiVec instruction when building kernel
|
|
KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
|
|
|
|
# No SPE instruction when building kernel
|
|
KBUILD_CFLAGS += $(call cc-option,-mno-spe)
|
|
|
|
# Enable unit-at-a-time mode when possible. It shrinks the
|
|
# kernel considerably.
|
|
KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
|
|
|
|
# Never use string load/store instructions as they are
|
|
# often slow when they are implemented at all
|
|
KBUILD_CFLAGS += -mno-string
|
|
|
|
ifeq ($(CONFIG_6xx),y)
|
|
KBUILD_CFLAGS += -mcpu=powerpc
|
|
endif
|
|
|
|
cpu-as-$(CONFIG_4xx) += -Wa,-m405
|
|
cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
|
|
cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec
|
|
cpu-as-$(CONFIG_E500) += -Wa,-me500
|
|
cpu-as-$(CONFIG_E200) += -Wa,-me200
|
|
|
|
KBUILD_AFLAGS += $(cpu-as-y)
|
|
KBUILD_CFLAGS += $(cpu-as-y)
|
|
|
|
head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o
|
|
head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o
|
|
head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o
|
|
head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o
|
|
head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o
|
|
|
|
head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o
|
|
head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
|
|
|
|
core-y += arch/powerpc/kernel/ \
|
|
arch/powerpc/mm/ \
|
|
arch/powerpc/lib/ \
|
|
arch/powerpc/sysdev/ \
|
|
arch/powerpc/platforms/
|
|
core-$(CONFIG_MATH_EMULATION) += arch/powerpc/math-emu/
|
|
core-$(CONFIG_XMON) += arch/powerpc/xmon/
|
|
core-$(CONFIG_KVM) += arch/powerpc/kvm/
|
|
|
|
drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
|
|
|
|
# Default to zImage, override when needed
|
|
all: zImage
|
|
|
|
CPPFLAGS_vmlinux.lds := -Upowerpc
|
|
|
|
BOOT_TARGETS = zImage zImage.initrd uImage zImage% dtbImage% treeImage.% cuImage.% simpleImage.%
|
|
|
|
PHONY += $(BOOT_TARGETS)
|
|
|
|
boot := arch/$(ARCH)/boot
|
|
|
|
$(BOOT_TARGETS): vmlinux
|
|
$(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
|
|
|
bootwrapper_install %.dtb:
|
|
$(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
|
|
|
define archhelp
|
|
@echo '* zImage - Build default images selected by kernel config'
|
|
@echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
|
|
@echo ' uImage - U-Boot native image format'
|
|
@echo ' cuImage.<dt> - Backwards compatible U-Boot image for older'
|
|
@echo ' versions which do not support device trees'
|
|
@echo ' dtbImage.<dt> - zImage with an embedded device tree blob'
|
|
@echo ' simpleImage.<dt> - Firmware independent image.'
|
|
@echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)'
|
|
@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/$(ARCH)/configs'
|
|
@echo ''
|
|
@echo ' Targets with <dt> embed a device tree blob inside the image'
|
|
@echo ' These targets support board with firmware that does not'
|
|
@echo ' support passing a device tree directly. Replace <dt> with the'
|
|
@echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory'
|
|
@echo ' (minus the .dts extension).'
|
|
endef
|
|
|
|
install:
|
|
$(Q)$(MAKE) $(build)=$(boot) install
|
|
|
|
vdso_install:
|
|
ifeq ($(CONFIG_PPC64),y)
|
|
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
|
|
endif
|
|
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
|
|
|
|
archclean:
|
|
$(Q)$(MAKE) $(clean)=$(boot)
|
|
|
|
archprepare: checkbin
|
|
|
|
# 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 test "$(call cc-fullversion)" = "040200" \
|
|
&& test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
|
|
echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
|
|
echo 'kernel with modules enabled.' ; \
|
|
echo -n '*** Please use a different GCC version or ' ; \
|
|
echo 'disable kernel modules' ; \
|
|
false ; \
|
|
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)
|
|
|