114cf11afSPaul Mackerras# This file is included by the global makefile so that you can add your own 214cf11afSPaul Mackerras# architecture-specific flags and dependencies. Remember to do have actions 314cf11afSPaul Mackerras# for "archclean" and "archdep" for cleaning up and making dependencies for 414cf11afSPaul Mackerras# this architecture. 514cf11afSPaul Mackerras# 614cf11afSPaul Mackerras# This file is subject to the terms and conditions of the GNU General Public 714cf11afSPaul Mackerras# License. See the file "COPYING" in the main directory of this archive 814cf11afSPaul Mackerras# for more details. 914cf11afSPaul Mackerras# 1014cf11afSPaul Mackerras# Copyright (C) 1994 by Linus Torvalds 1114cf11afSPaul Mackerras# Changes for PPC by Gary Thomas 1214cf11afSPaul Mackerras# Rewritten by Cort Dougan and Paul Mackerras 1314cf11afSPaul Mackerras# 1414cf11afSPaul Mackerras 1514cf11afSPaul MackerrasHAS_BIARCH := $(call cc-option-yn, -m32) 1614cf11afSPaul Mackerras 1714cf11afSPaul Mackerras# Set default 32 bits cross compilers for vdso and boot wrapper 1814cf11afSPaul MackerrasCROSS32_COMPILE ?= 1914cf11afSPaul Mackerras 2014cf11afSPaul MackerrasCROSS32CC := $(CROSS32_COMPILE)gcc 212bf11819SPaul MackerrasCROSS32AR := $(CROSS32_COMPILE)ar 2214cf11afSPaul Mackerras 2314cf11afSPaul Mackerrasifeq ($(HAS_BIARCH),y) 2414cf11afSPaul Mackerrasifeq ($(CROSS32_COMPILE),) 2514cf11afSPaul MackerrasCROSS32CC := $(CC) -m32 268995ac87SSegher BoessenkoolCROSS32AR := GNUTARGET=elf32-powerpc $(AR) 2714cf11afSPaul Mackerrasendif 2814cf11afSPaul Mackerrasendif 2914cf11afSPaul Mackerras 301976aef9SSegher Boessenkoolexport CROSS32CC CROSS32AR 3114cf11afSPaul Mackerras 32ca786f83SAdrian Bunkifeq ($(CROSS_COMPILE),) 338a5abdf8SPaul MackerrasKBUILD_DEFCONFIG := $(shell uname -m)_defconfig 34ca786f83SAdrian Bunkelse 35ca786f83SAdrian BunkKBUILD_DEFCONFIG := ppc64_defconfig 36ca786f83SAdrian Bunkendif 378a5abdf8SPaul Mackerras 3894b212c2SPaul Mackerrasifeq ($(CONFIG_PPC64),y) 3994b212c2SPaul MackerrasOLDARCH := ppc64 4094b212c2SPaul Mackerras 4114cf11afSPaul Mackerrasnew_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) 4214cf11afSPaul Mackerras 4314cf11afSPaul Mackerrasifeq ($(new_nm),y) 4414cf11afSPaul MackerrasNM := $(NM) --synthetic 4514cf11afSPaul Mackerrasendif 4614cf11afSPaul Mackerras 4714cf11afSPaul Mackerraselse 48bbeb3f4cSStephen RothwellOLDARCH := ppc 492578bfaeSStephen Rothwellendif 502578bfaeSStephen Rothwell 512578bfaeSStephen Rothwell# It seems there are times we use this Makefile without 522578bfaeSStephen Rothwell# including the config file, but this replicates the old behaviour 532578bfaeSStephen Rothwellifeq ($(CONFIG_WORD_SIZE),) 542578bfaeSStephen RothwellCONFIG_WORD_SIZE := 32 5514cf11afSPaul Mackerrasendif 5614cf11afSPaul Mackerras 57190554dbSStephen RothwellUTS_MACHINE := $(OLDARCH) 58190554dbSStephen Rothwell 5914cf11afSPaul Mackerrasifeq ($(HAS_BIARCH),y) 602578bfaeSStephen Rothwelloverride AS += -a$(CONFIG_WORD_SIZE) 612578bfaeSStephen Rothwelloverride LD += -m elf$(CONFIG_WORD_SIZE)ppc 622578bfaeSStephen Rothwelloverride CC += -m$(CONFIG_WORD_SIZE) 632578bfaeSStephen Rothwelloverride AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-powerpc $(AR) 6414cf11afSPaul Mackerrasendif 6514cf11afSPaul Mackerras 66*549e8152SPaul MackerrasLDFLAGS_vmlinux-yy := -Bstatic 67*549e8152SPaul MackerrasLDFLAGS_vmlinux-$(CONFIG_PPC64)$(CONFIG_RELOCATABLE) := -pie 68*549e8152SPaul MackerrasLDFLAGS_vmlinux := $(LDFLAGS_vmlinux-yy) 6914cf11afSPaul Mackerras 70bbeb3f4cSStephen RothwellCFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc 711993cbf4SKumar GalaCFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple 721993cbf4SKumar GalaKBUILD_CPPFLAGS += -Iarch/$(ARCH) 731993cbf4SKumar GalaKBUILD_AFLAGS += -Iarch/$(ARCH) 741993cbf4SKumar GalaKBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) 75a0f97e06SSam RavnborgCPP = $(CC) -E $(KBUILD_CFLAGS) 7614cf11afSPaul Mackerras 772578bfaeSStephen RothwellCHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ 7814cf11afSPaul Mackerras 7914cf11afSPaul Mackerrasifeq ($(CONFIG_PPC64),y) 80ad14336dSSam RavnborgGCC_BROKEN_VEC := $(shell if [ $(call cc-version) -lt 0400 ] ; then echo "y"; fi) 8114cf11afSPaul Mackerras 8214cf11afSPaul Mackerrasifeq ($(CONFIG_POWER4_ONLY),y) 8314cf11afSPaul Mackerrasifeq ($(CONFIG_ALTIVEC),y) 8414cf11afSPaul Mackerrasifeq ($(GCC_BROKEN_VEC),y) 85a0f97e06SSam Ravnborg KBUILD_CFLAGS += $(call cc-option,-mcpu=970) 8614cf11afSPaul Mackerraselse 87a0f97e06SSam Ravnborg KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) 8814cf11afSPaul Mackerrasendif 8914cf11afSPaul Mackerraselse 90a0f97e06SSam Ravnborg KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) 9114cf11afSPaul Mackerrasendif 9214cf11afSPaul Mackerraselse 93a0f97e06SSam Ravnborg KBUILD_CFLAGS += $(call cc-option,-mtune=power4) 9414cf11afSPaul Mackerrasendif 95da3de6dfSKumar Galaelse 96da3de6dfSKumar GalaLDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o 9714cf11afSPaul Mackerrasendif 9814cf11afSPaul Mackerras 993164cccdSArnd Bergmannifeq ($(CONFIG_TUNE_CELL),y) 100a0f97e06SSam Ravnborg KBUILD_CFLAGS += $(call cc-option,-mtune=cell) 1013164cccdSArnd Bergmannendif 1023164cccdSArnd Bergmann 103d3f67fbbSPaul Mackerras# No AltiVec instruction when building kernel 104a0f97e06SSam RavnborgKBUILD_CFLAGS += $(call cc-option,-mno-altivec) 105d3f67fbbSPaul Mackerras 1060197cd2eSKumar Gala# No SPE instruction when building kernel 1070197cd2eSKumar GalaKBUILD_CFLAGS += $(call cc-option,-mno-spe) 1080197cd2eSKumar Gala 10914cf11afSPaul Mackerras# Enable unit-at-a-time mode when possible. It shrinks the 11014cf11afSPaul Mackerras# kernel considerably. 111a0f97e06SSam RavnborgKBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) 11214cf11afSPaul Mackerras 11357647a4dSBenjamin Herrenschmidt# Never use string load/store instructions as they are 11457647a4dSBenjamin Herrenschmidt# often slow when they are implemented at all 115a0f97e06SSam RavnborgKBUILD_CFLAGS += -mno-string 11614cf11afSPaul Mackerras 117f48b8296SOlaf Heringifeq ($(CONFIG_6xx),y) 118a0f97e06SSam RavnborgKBUILD_CFLAGS += -mcpu=powerpc 119f48b8296SOlaf Heringendif 120f48b8296SOlaf Hering 1217563dc64STony Breeds# Work around a gcc code-gen bug with -fno-omit-frame-pointer. 1227563dc64STony Breedsifeq ($(CONFIG_FTRACE),y) 1237563dc64STony BreedsKBUILD_CFLAGS += -mno-sched-epilog 1247563dc64STony Breedsendif 1257563dc64STony Breeds 12614cf11afSPaul Mackerrascpu-as-$(CONFIG_4xx) += -Wa,-m405 12714cf11afSPaul Mackerrascpu-as-$(CONFIG_6xx) += -Wa,-maltivec 12814cf11afSPaul Mackerrascpu-as-$(CONFIG_POWER4) += -Wa,-maltivec 12914cf11afSPaul Mackerrascpu-as-$(CONFIG_E500) += -Wa,-me500 13014cf11afSPaul Mackerrascpu-as-$(CONFIG_E200) += -Wa,-me200 13114cf11afSPaul Mackerras 132222d394dSSam RavnborgKBUILD_AFLAGS += $(cpu-as-y) 133a0f97e06SSam RavnborgKBUILD_CFLAGS += $(cpu-as-y) 13414cf11afSPaul Mackerras 1352578bfaeSStephen Rothwellhead-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o 13614cf11afSPaul Mackerrashead-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o 13715f6527eSJosh Boyerhead-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o 13814cf11afSPaul Mackerrashead-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o 13914cf11afSPaul Mackerrashead-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o 14014cf11afSPaul Mackerras 1419994a338SPaul Mackerrashead-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o 14214cf11afSPaul Mackerrashead-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o 14314cf11afSPaul Mackerras 144daec962eSPaul Mackerrascore-y += arch/powerpc/kernel/ \ 145daec962eSPaul Mackerras arch/powerpc/mm/ \ 146daec962eSPaul Mackerras arch/powerpc/lib/ \ 147daec962eSPaul Mackerras arch/powerpc/sysdev/ \ 148daec962eSPaul Mackerras arch/powerpc/platforms/ 1495cd27208SKumar Galacore-$(CONFIG_MATH_EMULATION) += arch/powerpc/math-emu/ 150f78541dcSPaul Mackerrascore-$(CONFIG_XMON) += arch/powerpc/xmon/ 151bbf45ba5SHollis Blanchardcore-$(CONFIG_KVM) += arch/powerpc/kvm/ 15214cf11afSPaul Mackerras 15314cf11afSPaul Mackerrasdrivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ 15414cf11afSPaul Mackerras 155135f0b17STom Rini# Default to zImage, override when needed 15625431333SGrant Likelyall: zImage 15714cf11afSPaul Mackerras 15814cf11afSPaul MackerrasCPPFLAGS_vmlinux.lds := -Upowerpc 15914cf11afSPaul Mackerras 1608d6bcd6eSGrant LikelyBOOT_TARGETS = zImage zImage.initrd uImage zImage% dtbImage% treeImage.% cuImage.% simpleImage.% 161cabb5587SStephen Rothwell 1624f193362SPaul SmithPHONY += $(BOOT_TARGETS) 163cabb5587SStephen Rothwell 16494b212c2SPaul Mackerrasboot := arch/$(ARCH)/boot 16514cf11afSPaul Mackerras 16614cf11afSPaul Mackerras$(BOOT_TARGETS): vmlinux 16720f62954SPaul Mackerras $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) 16814cf11afSPaul Mackerras 169e04018e8SGrant Likelybootwrapper_install %.dtb: 170773f76b1SDavid Woodhouse $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) 171773f76b1SDavid Woodhouse 17214cf11afSPaul Mackerrasdefine archhelp 17370bf0333SGrant Likely @echo '* zImage - Build default images selected by kernel config' 17470bf0333SGrant Likely @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' 17570bf0333SGrant Likely @echo ' uImage - U-Boot native image format' 17670bf0333SGrant Likely @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older' 17770bf0333SGrant Likely @echo ' versions which do not support device trees' 17870bf0333SGrant Likely @echo ' dtbImage.<dt> - zImage with an embedded device tree blob' 17970bf0333SGrant Likely @echo ' simpleImage.<dt> - Firmware independent image.' 18070bf0333SGrant Likely @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)' 18114cf11afSPaul Mackerras @echo ' install - Install kernel using' 18214cf11afSPaul Mackerras @echo ' (your) ~/bin/installkernel or' 18314cf11afSPaul Mackerras @echo ' (distribution) /sbin/installkernel or' 18414cf11afSPaul Mackerras @echo ' install to $$(INSTALL_PATH) and run lilo' 185437a58dbSPaul Mackerras @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' 18670bf0333SGrant Likely @echo '' 18770bf0333SGrant Likely @echo ' Targets with <dt> embed a device tree blob inside the image' 18870bf0333SGrant Likely @echo ' These targets support board with firmware that does not' 18970bf0333SGrant Likely @echo ' support passing a device tree directly. Replace <dt> with the' 19070bf0333SGrant Likely @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory' 19170bf0333SGrant Likely @echo ' (minus the .dts extension).' 19214cf11afSPaul Mackerrasendef 19314cf11afSPaul Mackerras 1943f85d63eSSam Ravnborginstall: 19525431333SGrant Likely $(Q)$(MAKE) $(build)=$(boot) install 196928370c6SAkinobu Mita 1978150caadSRoland McGrathvdso_install: 1988150caadSRoland McGrathifeq ($(CONFIG_PPC64),y) 1998150caadSRoland McGrath $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ 2008150caadSRoland McGrathendif 2018150caadSRoland McGrath $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ 2028150caadSRoland McGrath 20314cf11afSPaul Mackerrasarchclean: 204a3a9e99eSPaul Mackerras $(Q)$(MAKE) $(clean)=$(boot) 20570567293SAndreas Gruenbacher 20614cf11afSPaul Mackerrasarchprepare: checkbin 20714cf11afSPaul Mackerras 20814cf11afSPaul Mackerras# Use the file '.tmp_gas_check' for binutils tests, as gas won't output 20914cf11afSPaul Mackerras# to stdout and these checks are run even on install targets. 21014cf11afSPaul MackerrasTOUT := .tmp_gas_check 21114cf11afSPaul Mackerras# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec 21214cf11afSPaul Mackerras# instructions. 21314cf11afSPaul Mackerras# gcc-3.4 and binutils-2.14 are a fatal combination. 21414cf11afSPaul Mackerras 21514cf11afSPaul Mackerrascheckbin: 216ad14336dSSam Ravnborg @if test "$(call cc-version)" = "0304" ; then \ 21714cf11afSPaul Mackerras if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ 21814cf11afSPaul Mackerras echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ 21914cf11afSPaul Mackerras echo 'correctly with gcc-3.4 and your version of binutils.'; \ 22014cf11afSPaul Mackerras echo '*** Please upgrade your binutils or downgrade your gcc'; \ 22114cf11afSPaul Mackerras false; \ 22214cf11afSPaul Mackerras fi ; \ 22314cf11afSPaul Mackerras fi 224f5e83fa4SSegher Boessenkool @if test "$(call cc-fullversion)" = "040200" \ 225f5e83fa4SSegher Boessenkool && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ 226f5e83fa4SSegher Boessenkool echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ 227f5e83fa4SSegher Boessenkool echo 'kernel with modules enabled.' ; \ 228f5e83fa4SSegher Boessenkool echo -n '*** Please use a different GCC version or ' ; \ 229f5e83fa4SSegher Boessenkool echo 'disable kernel modules' ; \ 230f5e83fa4SSegher Boessenkool false ; \ 231f5e83fa4SSegher Boessenkool fi 23214cf11afSPaul Mackerras @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \ 23314cf11afSPaul Mackerras echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \ 23414cf11afSPaul Mackerras echo 'correctly with old versions of binutils.' ; \ 23514cf11afSPaul Mackerras echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \ 23614cf11afSPaul Mackerras false ; \ 23714cf11afSPaul Mackerras fi 23814cf11afSPaul Mackerras 23914cf11afSPaul MackerrasCLEAN_FILES += $(TOUT) 24014cf11afSPaul Mackerras 241