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 $(AR) 6414cf11afSPaul Mackerrasendif 6514cf11afSPaul Mackerras 669c5f7d39SSuzuki PouloseLDFLAGS_vmlinux-y := -Bstatic 679c5f7d39SSuzuki PouloseLDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie 689c5f7d39SSuzuki PouloseLDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) 6914cf11afSPaul Mackerras 701fbe9cf2SAnton Blanchardifeq ($(CONFIG_PPC64),y) 711fbe9cf2SAnton Blanchardifeq ($(call cc-option-yn,-mcmodel=medium),y) 721fbe9cf2SAnton Blanchard # -mcmodel=medium breaks modules because it uses 32bit offsets from 731fbe9cf2SAnton Blanchard # the TOC pointer to create pointers where possible. Pointers into the 741fbe9cf2SAnton Blanchard # percpu data area are created by this method. 751fbe9cf2SAnton Blanchard # 761fbe9cf2SAnton Blanchard # The kernel module loader relocates the percpu data section from the 771fbe9cf2SAnton Blanchard # original location (starting with 0xd...) to somewhere in the base 781fbe9cf2SAnton Blanchard # kernel percpu data space (starting with 0xc...). We need a full 791fbe9cf2SAnton Blanchard # 64bit relocation for this to work, hence -mcmodel=large. 801fbe9cf2SAnton Blanchard KBUILD_CFLAGS_MODULE += -mcmodel=large 811fbe9cf2SAnton Blanchardelse 821fbe9cf2SAnton Blanchard export NO_MINIMAL_TOC := -mno-minimal-toc 831fbe9cf2SAnton Blanchardendif 841fbe9cf2SAnton Blanchardendif 851fbe9cf2SAnton Blanchard 861fbe9cf2SAnton BlanchardCFLAGS-$(CONFIG_PPC64) := -mtraceback=no -mcall-aixdesc 871fbe9cf2SAnton BlanchardCFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,-mminimal-toc) 8898679fb0SAnton BlanchardCFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) 891993cbf4SKumar GalaCFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple 90d23c6fb4SAnton Blanchard 91d23c6fb4SAnton BlanchardCFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) 92d23c6fb4SAnton BlanchardCFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) 93d23c6fb4SAnton BlanchardCFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) 94d23c6fb4SAnton BlanchardCFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) 95d23c6fb4SAnton BlanchardCFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) 96d23c6fb4SAnton BlanchardCFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) 97d23c6fb4SAnton Blanchard 98d23c6fb4SAnton BlanchardCFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell) 99d23c6fb4SAnton Blanchard 1001993cbf4SKumar GalaKBUILD_CPPFLAGS += -Iarch/$(ARCH) 101*5ba840ecSBenjamin HerrenschmidtKBUILD_AFLAGS += -Iarch/$(ARCH) 1021993cbf4SKumar GalaKBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) 103a0f97e06SSam RavnborgCPP = $(CC) -E $(KBUILD_CFLAGS) 10414cf11afSPaul Mackerras 1052578bfaeSStephen RothwellCHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ 10614cf11afSPaul Mackerras 107772320e8SMichal MarekKBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o 1087fca5dc8SStephen Rothwell 109d23c6fb4SAnton Blanchard# No AltiVec or VSX instructions when building kernel 110a0f97e06SSam RavnborgKBUILD_CFLAGS += $(call cc-option,-mno-altivec) 111d23c6fb4SAnton BlanchardKBUILD_CFLAGS += $(call cc-option,-mno-vsx) 112d3f67fbbSPaul Mackerras 1130197cd2eSKumar Gala# No SPE instruction when building kernel 114ce400c01SThiemo Seufer# (We use all available options to help semi-broken compilers) 1150197cd2eSKumar GalaKBUILD_CFLAGS += $(call cc-option,-mno-spe) 116ce400c01SThiemo SeuferKBUILD_CFLAGS += $(call cc-option,-mspe=no) 1170197cd2eSKumar Gala 11814cf11afSPaul Mackerras# Enable unit-at-a-time mode when possible. It shrinks the 11914cf11afSPaul Mackerras# kernel considerably. 120a0f97e06SSam RavnborgKBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) 12114cf11afSPaul Mackerras 122d0679c73SAndi Kleen# FIXME: the module load should be taught about the additional relocs 123d0679c73SAndi Kleen# generated by this. 124d0679c73SAndi Kleen# revert to pre-gcc-4.4 behaviour of .eh_frame 125d0679c73SAndi KleenKBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 126d0679c73SAndi Kleen 12757647a4dSBenjamin Herrenschmidt# Never use string load/store instructions as they are 12857647a4dSBenjamin Herrenschmidt# often slow when they are implemented at all 129a0f97e06SSam RavnborgKBUILD_CFLAGS += -mno-string 13014cf11afSPaul Mackerras 131f48b8296SOlaf Heringifeq ($(CONFIG_6xx),y) 132a0f97e06SSam RavnborgKBUILD_CFLAGS += -mcpu=powerpc 133f48b8296SOlaf Heringendif 134f48b8296SOlaf Hering 1357563dc64STony Breeds# Work around a gcc code-gen bug with -fno-omit-frame-pointer. 136606576ceSSteven Rostedtifeq ($(CONFIG_FUNCTION_TRACER),y) 1377563dc64STony BreedsKBUILD_CFLAGS += -mno-sched-epilog 1387563dc64STony Breedsendif 1397563dc64STony Breeds 14014cf11afSPaul Mackerrascpu-as-$(CONFIG_4xx) += -Wa,-m405 141e1fc235dSMatthew McClintockcpu-as-$(CONFIG_ALTIVEC) += -Wa,-maltivec 142*5ba840ecSBenjamin Herrenschmidtcpu-as-$(CONFIG_E500) += -Wa,-me500 14314cf11afSPaul Mackerrascpu-as-$(CONFIG_E200) += -Wa,-me200 14414cf11afSPaul Mackerras 145222d394dSSam RavnborgKBUILD_AFLAGS += $(cpu-as-y) 146a0f97e06SSam RavnborgKBUILD_CFLAGS += $(cpu-as-y) 14714cf11afSPaul Mackerras 1482578bfaeSStephen Rothwellhead-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o 14914cf11afSPaul Mackerrashead-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o 15015f6527eSJosh Boyerhead-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o 15114cf11afSPaul Mackerrashead-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o 15214cf11afSPaul Mackerrashead-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o 15314cf11afSPaul Mackerras 1549994a338SPaul Mackerrashead-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o 15514cf11afSPaul Mackerrashead-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o 156e821ea70SBenjamin Herrenschmidthead-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o 1575ac47f7aSAnton Blanchardhead-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o 15814cf11afSPaul Mackerras 159daec962eSPaul Mackerrascore-y += arch/powerpc/kernel/ \ 160daec962eSPaul Mackerras arch/powerpc/mm/ \ 161daec962eSPaul Mackerras arch/powerpc/lib/ \ 162daec962eSPaul Mackerras arch/powerpc/sysdev/ \ 1631a3d1fc2SLiu Yu arch/powerpc/platforms/ \ 1640ca87f05SMatt Evans arch/powerpc/math-emu/ \ 165323a6bf1SMichael Ellerman arch/powerpc/crypto/ \ 1660ca87f05SMatt Evans arch/powerpc/net/ 167f78541dcSPaul Mackerrascore-$(CONFIG_XMON) += arch/powerpc/xmon/ 168bbf45ba5SHollis Blanchardcore-$(CONFIG_KVM) += arch/powerpc/kvm/ 169f2699491SMichael Ellermancore-$(CONFIG_PERF_EVENTS) += arch/powerpc/perf/ 17014cf11afSPaul Mackerras 17114cf11afSPaul Mackerrasdrivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ 17214cf11afSPaul Mackerras 173135f0b17STom Rini# Default to zImage, override when needed 17425431333SGrant Likelyall: zImage 17514cf11afSPaul Mackerras 176e32e78c5SSam Ravnborg# With make 3.82 we cannot mix normal and wildcard targets 177c686ecf5SAnatolij GustschinBOOT_TARGETS1 := zImage zImage.initrd uImage 17811eab297SBenjamin HerrenschmidtBOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.% 179cabb5587SStephen Rothwell 180e32e78c5SSam RavnborgPHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) 181cabb5587SStephen Rothwell 18294b212c2SPaul Mackerrasboot := arch/$(ARCH)/boot 18314cf11afSPaul Mackerras 184144ef909STony Breedsifeq ($(CONFIG_RELOCATABLE),y) 185144ef909STony Breedsquiet_cmd_relocs_check = CALL $< 186144ef909STony Breeds cmd_relocs_check = perl $< "$(OBJDUMP)" "$(obj)/vmlinux" 187144ef909STony Breeds 188144ef909STony BreedsPHONY += relocs_check 189144ef909STony Breedsrelocs_check: arch/powerpc/relocs_check.pl vmlinux 190144ef909STony Breeds $(call cmd,relocs_check) 191144ef909STony Breeds 192144ef909STony BreedszImage: relocs_check 193144ef909STony Breedsendif 194144ef909STony Breeds 195e32e78c5SSam Ravnborg$(BOOT_TARGETS1): vmlinux 196e32e78c5SSam Ravnborg $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) 197e32e78c5SSam Ravnborg$(BOOT_TARGETS2): vmlinux 19820f62954SPaul Mackerras $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) 19914cf11afSPaul Mackerras 200e32e78c5SSam Ravnborg 201e32e78c5SSam Ravnborgbootwrapper_install: 202e32e78c5SSam Ravnborg $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) 203e32e78c5SSam Ravnborg 2048662d0bcSMatthew McClintock%.dtb: scripts 205773f76b1SDavid Woodhouse $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) 206773f76b1SDavid Woodhouse 20714cf11afSPaul Mackerrasdefine archhelp 20870bf0333SGrant Likely @echo '* zImage - Build default images selected by kernel config' 20970bf0333SGrant Likely @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' 21070bf0333SGrant Likely @echo ' uImage - U-Boot native image format' 21170bf0333SGrant Likely @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older' 21270bf0333SGrant Likely @echo ' versions which do not support device trees' 21370bf0333SGrant Likely @echo ' dtbImage.<dt> - zImage with an embedded device tree blob' 21470bf0333SGrant Likely @echo ' simpleImage.<dt> - Firmware independent image.' 21570bf0333SGrant Likely @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)' 21614cf11afSPaul Mackerras @echo ' install - Install kernel using' 217caa27b66SSam Ravnborg @echo ' (your) ~/bin/$(INSTALLKERNEL) or' 218caa27b66SSam Ravnborg @echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 21914cf11afSPaul Mackerras @echo ' install to $$(INSTALL_PATH) and run lilo' 220437a58dbSPaul Mackerras @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' 22170bf0333SGrant Likely @echo '' 22270bf0333SGrant Likely @echo ' Targets with <dt> embed a device tree blob inside the image' 22370bf0333SGrant Likely @echo ' These targets support board with firmware that does not' 22470bf0333SGrant Likely @echo ' support passing a device tree directly. Replace <dt> with the' 22570bf0333SGrant Likely @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory' 22670bf0333SGrant Likely @echo ' (minus the .dts extension).' 22714cf11afSPaul Mackerrasendef 22814cf11afSPaul Mackerras 2293f85d63eSSam Ravnborginstall: 23025431333SGrant Likely $(Q)$(MAKE) $(build)=$(boot) install 231928370c6SAkinobu Mita 2328150caadSRoland McGrathvdso_install: 2338150caadSRoland McGrathifeq ($(CONFIG_PPC64),y) 2348150caadSRoland McGrath $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ 2358150caadSRoland McGrathendif 2368150caadSRoland McGrath $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ 2378150caadSRoland McGrath 23814cf11afSPaul Mackerrasarchclean: 239a3a9e99eSPaul Mackerras $(Q)$(MAKE) $(clean)=$(boot) 24070567293SAndreas Gruenbacher 24114cf11afSPaul Mackerrasarchprepare: checkbin 24214cf11afSPaul Mackerras 24314cf11afSPaul Mackerras# Use the file '.tmp_gas_check' for binutils tests, as gas won't output 24414cf11afSPaul Mackerras# to stdout and these checks are run even on install targets. 24514cf11afSPaul MackerrasTOUT := .tmp_gas_check 24614cf11afSPaul Mackerras 24782a85084SAnton Blanchard# Check gcc and binutils versions: 24882a85084SAnton Blanchard# - gcc-3.4 and binutils-2.14 are a fatal combination 24982a85084SAnton Blanchard# - Require gcc 4.0 or above on 64-bit 25082a85084SAnton Blanchard# - gcc-4.2.0 has issues compiling modules on 64-bit 25114cf11afSPaul Mackerrascheckbin: 252ad14336dSSam Ravnborg @if test "$(call cc-version)" = "0304" ; then \ 25314cf11afSPaul Mackerras if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ 25414cf11afSPaul Mackerras echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ 25514cf11afSPaul Mackerras echo 'correctly with gcc-3.4 and your version of binutils.'; \ 25614cf11afSPaul Mackerras echo '*** Please upgrade your binutils or downgrade your gcc'; \ 25714cf11afSPaul Mackerras false; \ 25814cf11afSPaul Mackerras fi ; \ 25914cf11afSPaul Mackerras fi 26082a85084SAnton Blanchard @if test "$(call cc-version)" -lt "0400" \ 26182a85084SAnton Blanchard && test "x${CONFIG_PPC64}" = "xy" ; then \ 26282a85084SAnton Blanchard echo -n "Sorry, GCC v4.0 or above is required to build " ; \ 26382a85084SAnton Blanchard echo "the 64-bit powerpc kernel." ; \ 26482a85084SAnton Blanchard false ; \ 26582a85084SAnton Blanchard fi 266f5e83fa4SSegher Boessenkool @if test "$(call cc-fullversion)" = "040200" \ 267f5e83fa4SSegher Boessenkool && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ 268f5e83fa4SSegher Boessenkool echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ 269f5e83fa4SSegher Boessenkool echo 'kernel with modules enabled.' ; \ 270f5e83fa4SSegher Boessenkool echo -n '*** Please use a different GCC version or ' ; \ 271f5e83fa4SSegher Boessenkool echo 'disable kernel modules' ; \ 272f5e83fa4SSegher Boessenkool false ; \ 273f5e83fa4SSegher Boessenkool fi 27414cf11afSPaul Mackerras 27514cf11afSPaul MackerrasCLEAN_FILES += $(TOUT) 27614cf11afSPaul Mackerras 277