426 lines
14 KiB
Makefile
426 lines
14 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 := $(call cc-option-yn, -m32)
|
|
|
|
# Set default 32 bits cross compilers for vdso and boot wrapper
|
|
CROSS32_COMPILE ?=
|
|
|
|
ifeq ($(HAS_BIARCH),y)
|
|
ifeq ($(CROSS32_COMPILE),)
|
|
ifdef CONFIG_PPC32
|
|
# These options will be overridden by any -mcpu option that the CPU
|
|
# or platform code sets later on the command line, but they are needed
|
|
# to set a sane 32-bit cpu target for the 64-bit cross compiler which
|
|
# may default to the wrong ISA.
|
|
KBUILD_CFLAGS += -mcpu=powerpc
|
|
KBUILD_AFLAGS += -mcpu=powerpc
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
ifeq ($(CROSS_COMPILE),)
|
|
KBUILD_DEFCONFIG := $(shell uname -m)_defconfig
|
|
else
|
|
KBUILD_DEFCONFIG := ppc64_defconfig
|
|
endif
|
|
|
|
ifdef CONFIG_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 := $(NM) --synthetic
|
|
endif
|
|
endif
|
|
|
|
# BITS is used as extension for files which are available in a 32 bit
|
|
# and a 64 bit version to simplify shared Makefiles.
|
|
# e.g.: obj-y += foo_$(BITS).o
|
|
export BITS
|
|
|
|
ifdef CONFIG_PPC64
|
|
BITS := 64
|
|
else
|
|
BITS := 32
|
|
endif
|
|
|
|
machine-y = ppc
|
|
machine-$(CONFIG_PPC64) += 64
|
|
machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
|
|
UTS_MACHINE := $(subst $(space),,$(machine-y))
|
|
|
|
# XXX This needs to be before we override LD below
|
|
ifdef CONFIG_PPC32
|
|
KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
|
|
else
|
|
KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/powerpc/kernel/module.lds
|
|
ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
|
|
# Have the linker provide sfpr if possible.
|
|
# There is a corresponding test in arch/powerpc/lib/Makefile
|
|
KBUILD_LDFLAGS_MODULE += --save-restore-funcs
|
|
else
|
|
KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
|
|
endif
|
|
endif
|
|
|
|
ifdef CONFIG_CPU_LITTLE_ENDIAN
|
|
KBUILD_CFLAGS += -mlittle-endian
|
|
KBUILD_LDFLAGS += -EL
|
|
LDEMULATION := lppc
|
|
GNUTARGET := powerpcle
|
|
MULTIPLEWORD := -mno-multiple
|
|
KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
|
|
else
|
|
KBUILD_CFLAGS += $(call cc-option,-mbig-endian)
|
|
KBUILD_LDFLAGS += -EB
|
|
LDEMULATION := ppc
|
|
GNUTARGET := powerpc
|
|
MULTIPLEWORD := -mmultiple
|
|
endif
|
|
|
|
ifdef CONFIG_PPC64
|
|
cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
|
|
cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
|
|
aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
|
|
aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
|
|
endif
|
|
|
|
ifndef CONFIG_CC_IS_CLANG
|
|
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align
|
|
endif
|
|
|
|
cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian)
|
|
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian
|
|
aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian)
|
|
aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian
|
|
|
|
ifeq ($(HAS_BIARCH),y)
|
|
KBUILD_CFLAGS += -m$(BITS)
|
|
KBUILD_AFLAGS += -m$(BITS) -Wl,-a$(BITS)
|
|
KBUILD_LDFLAGS += -m elf$(BITS)$(LDEMULATION)
|
|
KBUILD_ARFLAGS += --target=elf$(BITS)-$(GNUTARGET)
|
|
endif
|
|
|
|
cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard=tls
|
|
ifdef CONFIG_PPC64
|
|
cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard-reg=r13
|
|
else
|
|
cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard-reg=r2
|
|
endif
|
|
|
|
LDFLAGS_vmlinux-y := -Bstatic
|
|
LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie
|
|
LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y)
|
|
LDFLAGS_vmlinux += $(call ld-option,--orphan-handling=warn)
|
|
|
|
ifdef CONFIG_PPC64
|
|
ifeq ($(call cc-option-yn,-mcmodel=medium),y)
|
|
# -mcmodel=medium breaks modules because it uses 32bit offsets from
|
|
# the TOC pointer to create pointers where possible. Pointers into the
|
|
# percpu data area are created by this method.
|
|
#
|
|
# The kernel module loader relocates the percpu data section from the
|
|
# original location (starting with 0xd...) to somewhere in the base
|
|
# kernel percpu data space (starting with 0xc...). We need a full
|
|
# 64bit relocation for this to work, hence -mcmodel=large.
|
|
KBUILD_CFLAGS_MODULE += -mcmodel=large
|
|
else
|
|
export NO_MINIMAL_TOC := -mno-minimal-toc
|
|
endif
|
|
endif
|
|
|
|
CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no)
|
|
ifdef CONFIG_CPU_LITTLE_ENDIAN
|
|
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
|
|
AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
|
|
else
|
|
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
|
|
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
|
|
AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
|
|
endif
|
|
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
|
|
CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
|
|
|
|
CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD)
|
|
CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-mno-readonly-in-sdata)
|
|
|
|
ifdef CONFIG_PPC_BOOK3S_64
|
|
ifdef CONFIG_CPU_LITTLE_ENDIAN
|
|
CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8
|
|
CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power9,-mtune=power8)
|
|
else
|
|
CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,$(call cc-option,-mtune=power5))
|
|
CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mcpu=power5,-mcpu=power4)
|
|
endif
|
|
else
|
|
CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
|
|
endif
|
|
|
|
ifdef CONFIG_FUNCTION_TRACER
|
|
CC_FLAGS_FTRACE := -pg
|
|
ifdef CONFIG_MPROFILE_KERNEL
|
|
CC_FLAGS_FTRACE += -mprofile-kernel
|
|
endif
|
|
# Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8
|
|
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199
|
|
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828
|
|
ifndef CONFIG_CC_IS_CLANG
|
|
CC_FLAGS_FTRACE += $(call cc-ifversion, -lt, 0409, -mno-sched-epilog)
|
|
endif
|
|
endif
|
|
|
|
CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += $(call cc-option,-mcpu=$(CONFIG_TARGET_CPU))
|
|
|
|
# Altivec option not allowed with e500mc64 in GCC.
|
|
ifdef CONFIG_ALTIVEC
|
|
E5500_CPU := -mcpu=powerpc64
|
|
else
|
|
E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
|
|
endif
|
|
CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
|
|
CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
|
|
|
|
ifdef CONFIG_PPC32
|
|
ifdef CONFIG_PPC_E500MC
|
|
CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc)
|
|
else
|
|
CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc)
|
|
endif
|
|
endif
|
|
|
|
asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1)
|
|
|
|
KBUILD_CPPFLAGS += -Iarch/$(ARCH) $(asinstr)
|
|
KBUILD_AFLAGS += -Iarch/$(ARCH) $(AFLAGS-y)
|
|
KBUILD_CFLAGS += $(call cc-option,-msoft-float)
|
|
KBUILD_CFLAGS += -pipe -Iarch/$(ARCH) $(CFLAGS-y)
|
|
CPP = $(CC) -E $(KBUILD_CFLAGS)
|
|
|
|
CHECKFLAGS += -m$(BITS) -D__powerpc__ -D__powerpc$(BITS)__
|
|
ifdef CONFIG_CPU_BIG_ENDIAN
|
|
CHECKFLAGS += -D__BIG_ENDIAN__
|
|
else
|
|
CHECKFLAGS += -D__LITTLE_ENDIAN__
|
|
endif
|
|
|
|
ifdef CONFIG_476FPE_ERR46
|
|
KBUILD_LDFLAGS_MODULE += --ppc476-workaround \
|
|
-T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
|
|
endif
|
|
|
|
# No AltiVec or VSX instructions when building kernel
|
|
KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
|
|
KBUILD_CFLAGS += $(call cc-option,-mno-vsx)
|
|
|
|
# No SPE instruction when building kernel
|
|
# (We use all available options to help semi-broken compilers)
|
|
KBUILD_CFLAGS += $(call cc-option,-mno-spe)
|
|
KBUILD_CFLAGS += $(call cc-option,-mspe=no)
|
|
|
|
# Enable unit-at-a-time mode when possible. It shrinks the
|
|
# kernel considerably.
|
|
KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
|
|
|
|
# FIXME: the module load should be taught about the additional relocs
|
|
# generated by this.
|
|
# revert to pre-gcc-4.4 behaviour of .eh_frame
|
|
KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
|
|
|
|
# Never use string load/store instructions as they are
|
|
# often slow when they are implemented at all
|
|
KBUILD_CFLAGS += $(call cc-option,-mno-string)
|
|
|
|
ifdef CONFIG_6xx
|
|
KBUILD_CFLAGS += -mcpu=powerpc
|
|
endif
|
|
|
|
cpu-as-$(CONFIG_4xx) += -Wa,-m405
|
|
cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec)
|
|
cpu-as-$(CONFIG_E200) += -Wa,-me200
|
|
cpu-as-$(CONFIG_E500) += -Wa,-me500
|
|
|
|
# When using '-many -mpower4' gas will first try and find a matching power4
|
|
# mnemonic and failing that it will allow any valid mnemonic that GAS knows
|
|
# about. GCC will pass -many to GAS when assembling, clang does not.
|
|
cpu-as-$(CONFIG_PPC_BOOK3S_64) += -Wa,-mpower4 -Wa,-many
|
|
cpu-as-$(CONFIG_PPC_E500MC) += $(call as-option,-Wa$(comma)-me500mc)
|
|
|
|
KBUILD_AFLAGS += $(cpu-as-y)
|
|
KBUILD_CFLAGS += $(cpu-as-y)
|
|
|
|
KBUILD_AFLAGS += $(aflags-y)
|
|
KBUILD_CFLAGS += $(cflags-y)
|
|
|
|
head-y := arch/powerpc/kernel/head_$(BITS).o
|
|
head-$(CONFIG_PPC_8xx) := arch/powerpc/kernel/head_8xx.o
|
|
head-$(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
|
|
head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o
|
|
head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o
|
|
|
|
# See arch/powerpc/Kbuild for content of core part of the kernel
|
|
core-y += arch/powerpc/
|
|
|
|
drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
|
|
|
|
# Default to zImage, override when needed
|
|
all: zImage
|
|
|
|
# With make 3.82 we cannot mix normal and wildcard targets
|
|
BOOT_TARGETS1 := zImage zImage.initrd uImage
|
|
BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.%
|
|
|
|
PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2)
|
|
|
|
boot := arch/$(ARCH)/boot
|
|
|
|
$(BOOT_TARGETS1): vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
|
$(BOOT_TARGETS2): vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
|
|
|
|
|
bootwrapper_install:
|
|
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
|
|
|
# Used to create 'merged defconfigs'
|
|
# To use it $(call) it with the first argument as the base defconfig
|
|
# and the second argument as a space separated list of .config files to merge,
|
|
# without the .config suffix.
|
|
define merge_into_defconfig
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
|
|
-m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/$(1) \
|
|
$(foreach config,$(2),$(srctree)/arch/$(ARCH)/configs/$(config).config)
|
|
+$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
|
|
endef
|
|
|
|
PHONY += pseries_le_defconfig
|
|
pseries_le_defconfig:
|
|
$(call merge_into_defconfig,pseries_defconfig,le)
|
|
|
|
PHONY += ppc64le_defconfig
|
|
ppc64le_defconfig:
|
|
$(call merge_into_defconfig,ppc64_defconfig,le)
|
|
|
|
PHONY += powernv_be_defconfig
|
|
powernv_be_defconfig:
|
|
$(call merge_into_defconfig,powernv_defconfig,be)
|
|
|
|
PHONY += mpc85xx_defconfig
|
|
mpc85xx_defconfig:
|
|
$(call merge_into_defconfig,mpc85xx_basic_defconfig,\
|
|
85xx-32bit 85xx-hw fsl-emb-nonhw)
|
|
|
|
PHONY += mpc85xx_smp_defconfig
|
|
mpc85xx_smp_defconfig:
|
|
$(call merge_into_defconfig,mpc85xx_basic_defconfig,\
|
|
85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw)
|
|
|
|
PHONY += corenet32_smp_defconfig
|
|
corenet32_smp_defconfig:
|
|
$(call merge_into_defconfig,corenet_basic_defconfig,\
|
|
85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw dpaa)
|
|
|
|
PHONY += corenet64_smp_defconfig
|
|
corenet64_smp_defconfig:
|
|
$(call merge_into_defconfig,corenet_basic_defconfig,\
|
|
85xx-64bit 85xx-smp altivec 85xx-hw fsl-emb-nonhw dpaa)
|
|
|
|
PHONY += mpc86xx_defconfig
|
|
mpc86xx_defconfig:
|
|
$(call merge_into_defconfig,mpc86xx_basic_defconfig,\
|
|
86xx-hw fsl-emb-nonhw)
|
|
|
|
PHONY += mpc86xx_smp_defconfig
|
|
mpc86xx_smp_defconfig:
|
|
$(call merge_into_defconfig,mpc86xx_basic_defconfig,\
|
|
86xx-smp 86xx-hw fsl-emb-nonhw)
|
|
|
|
PHONY += ppc32_allmodconfig
|
|
ppc32_allmodconfig:
|
|
$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/book3s_32.config \
|
|
-f $(srctree)/Makefile allmodconfig
|
|
|
|
PHONY += ppc64le_allmodconfig
|
|
ppc64le_allmodconfig:
|
|
$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/le.config \
|
|
-f $(srctree)/Makefile allmodconfig
|
|
|
|
PHONY += ppc64_book3e_allmodconfig
|
|
ppc64_book3e_allmodconfig:
|
|
$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/85xx-64bit.config \
|
|
-f $(srctree)/Makefile allmodconfig
|
|
|
|
define archhelp
|
|
@echo '* zImage - Build default images selected by kernel config'
|
|
@echo ' zImage.* - Compressed kernel image (arch/$(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 $$(INSTALL_PATH) and run lilo'
|
|
@echo ' *_defconfig - Select default config from arch/$(ARCH)/configs'
|
|
@echo ''
|
|
@echo ' Targets with <dt> embed a device tree blob inside the image'
|
|
@echo ' These targets support board with firmware that does not'
|
|
@echo ' support passing a device tree directly. Replace <dt> with the'
|
|
@echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory'
|
|
@echo ' (minus the .dts extension).'
|
|
endef
|
|
|
|
install:
|
|
$(Q)$(MAKE) $(build)=$(boot) install
|
|
|
|
vdso_install:
|
|
ifdef CONFIG_PPC64
|
|
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
|
|
endif
|
|
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
|
|
|
|
archclean:
|
|
$(Q)$(MAKE) $(clean)=$(boot)
|
|
|
|
archprepare: checkbin
|
|
|
|
ifdef CONFIG_STACKPROTECTOR
|
|
prepare: stack_protector_prepare
|
|
|
|
stack_protector_prepare: prepare0
|
|
ifdef CONFIG_PPC64
|
|
$(eval KBUILD_CFLAGS += -mstack-protector-guard-offset=$(shell awk '{if ($$2 == "PACA_CANARY") print $$3;}' include/generated/asm-offsets.h))
|
|
else
|
|
$(eval KBUILD_CFLAGS += -mstack-protector-guard-offset=$(shell awk '{if ($$2 == "TASK_CANARY") print $$3;}' include/generated/asm-offsets.h))
|
|
endif
|
|
endif
|
|
|
|
# Check toolchain versions:
|
|
# - gcc-4.6 is the minimum kernel-wide version so nothing required.
|
|
checkbin:
|
|
@if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \
|
|
&& $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \
|
|
echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \
|
|
echo 'in some circumstances.' ; \
|
|
echo -n '*** Please use a different binutils version.' ; \
|
|
false ; \
|
|
fi
|