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 Mackerras# This must match PAGE_OFFSET in include/asm-powerpc/page.h. 1614cf11afSPaul MackerrasKERNELLOAD := $(CONFIG_KERNEL_START) 1714cf11afSPaul Mackerras 1814cf11afSPaul MackerrasHAS_BIARCH := $(call cc-option-yn, -m32) 1914cf11afSPaul Mackerras 2014cf11afSPaul Mackerrasifeq ($(CONFIG_PPC64),y) 21bbeb3f4cSStephen RothwellOLDARCH := ppc64 2214cf11afSPaul MackerrasSZ := 64 2314cf11afSPaul Mackerras 2414cf11afSPaul Mackerras# Set default 32 bits cross compilers for vdso and boot wrapper 2514cf11afSPaul MackerrasCROSS32_COMPILE ?= 2614cf11afSPaul Mackerras 2714cf11afSPaul MackerrasCROSS32CC := $(CROSS32_COMPILE)gcc 2814cf11afSPaul MackerrasCROSS32AS := $(CROSS32_COMPILE)as 2914cf11afSPaul MackerrasCROSS32LD := $(CROSS32_COMPILE)ld 3014cf11afSPaul MackerrasCROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy 3114cf11afSPaul Mackerras 3214cf11afSPaul Mackerrasifeq ($(HAS_BIARCH),y) 3314cf11afSPaul Mackerrasifeq ($(CROSS32_COMPILE),) 3414cf11afSPaul MackerrasCROSS32CC := $(CC) -m32 3514cf11afSPaul MackerrasCROSS32AS := $(AS) -a32 3614cf11afSPaul MackerrasCROSS32LD := $(LD) -m elf32ppc 3714cf11afSPaul MackerrasCROSS32OBJCOPY := $(OBJCOPY) 3814cf11afSPaul Mackerrasendif 3914cf11afSPaul Mackerrasendif 4014cf11afSPaul Mackerras 4114cf11afSPaul Mackerrasexport CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY 4214cf11afSPaul Mackerras 4314cf11afSPaul Mackerrasnew_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) 4414cf11afSPaul Mackerras 4514cf11afSPaul Mackerrasifeq ($(new_nm),y) 4614cf11afSPaul MackerrasNM := $(NM) --synthetic 4714cf11afSPaul Mackerrasendif 4814cf11afSPaul Mackerras 4914cf11afSPaul Mackerraselse 50bbeb3f4cSStephen RothwellOLDARCH := ppc 5114cf11afSPaul MackerrasSZ := 32 5214cf11afSPaul Mackerrasendif 5314cf11afSPaul Mackerras 5414cf11afSPaul Mackerrasifeq ($(HAS_BIARCH),y) 5514cf11afSPaul Mackerrasoverride AS += -a$(SZ) 5614cf11afSPaul Mackerrasoverride LD += -m elf$(SZ)ppc 5714cf11afSPaul Mackerrasoverride CC += -m$(SZ) 5814cf11afSPaul Mackerrasendif 5914cf11afSPaul Mackerras 6014cf11afSPaul MackerrasLDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic -e $(KERNELLOAD) 6114cf11afSPaul Mackerras 6214cf11afSPaul Mackerras# The -Iarch/$(ARCH)/include is temporary while we are merging 6314cf11afSPaul MackerrasCPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include 6414cf11afSPaul MackerrasAFLAGS += -Iarch/$(ARCH) 6514cf11afSPaul MackerrasCFLAGS += -Iarch/$(ARCH) -msoft-float -pipe 66bbeb3f4cSStephen RothwellCFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc 67bbeb3f4cSStephen RothwellCFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple 68bbeb3f4cSStephen RothwellCFLAGS += $(CFLAGS-y) 6914cf11afSPaul MackerrasCPP = $(CC) -E $(CFLAGS) 7014cf11afSPaul Mackerras# Temporary hack until we have migrated to asm-powerpc 7114cf11afSPaul MackerrasLINUXINCLUDE += -Iarch/$(ARCH)/include 7214cf11afSPaul Mackerras 7314cf11afSPaul MackerrasCHECKFLAGS += -m$(SZ) -D__powerpc__ -D__powerpc$(SZ)__ 7414cf11afSPaul Mackerras 7514cf11afSPaul Mackerrasifeq ($(CONFIG_PPC64),y) 7614cf11afSPaul MackerrasGCC_VERSION := $(call cc-version) 7714cf11afSPaul MackerrasGCC_BROKEN_VEC := $(shell if [ $(GCC_VERSION) -lt 0400 ] ; then echo "y"; fi) 7814cf11afSPaul Mackerras 7914cf11afSPaul Mackerrasifeq ($(CONFIG_POWER4_ONLY),y) 8014cf11afSPaul Mackerrasifeq ($(CONFIG_ALTIVEC),y) 8114cf11afSPaul Mackerrasifeq ($(GCC_BROKEN_VEC),y) 8214cf11afSPaul Mackerras CFLAGS += $(call cc-option,-mcpu=970) 8314cf11afSPaul Mackerraselse 8414cf11afSPaul Mackerras CFLAGS += $(call cc-option,-mcpu=power4) 8514cf11afSPaul Mackerrasendif 8614cf11afSPaul Mackerraselse 8714cf11afSPaul Mackerras CFLAGS += $(call cc-option,-mcpu=power4) 8814cf11afSPaul Mackerrasendif 8914cf11afSPaul Mackerraselse 9014cf11afSPaul Mackerras CFLAGS += $(call cc-option,-mtune=power4) 9114cf11afSPaul Mackerrasendif 9214cf11afSPaul Mackerrasendif 9314cf11afSPaul Mackerras 9414cf11afSPaul Mackerras# Enable unit-at-a-time mode when possible. It shrinks the 9514cf11afSPaul Mackerras# kernel considerably. 9614cf11afSPaul MackerrasCFLAGS += $(call cc-option,-funit-at-a-time) 9714cf11afSPaul Mackerras 9814cf11afSPaul Mackerrasifndef CONFIG_FSL_BOOKE 9914cf11afSPaul MackerrasCFLAGS += -mstring 10014cf11afSPaul Mackerrasendif 10114cf11afSPaul Mackerras 10214cf11afSPaul Mackerrascpu-as-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge 10314cf11afSPaul Mackerrascpu-as-$(CONFIG_4xx) += -Wa,-m405 10414cf11afSPaul Mackerrascpu-as-$(CONFIG_6xx) += -Wa,-maltivec 10514cf11afSPaul Mackerrascpu-as-$(CONFIG_POWER4) += -Wa,-maltivec 10614cf11afSPaul Mackerrascpu-as-$(CONFIG_E500) += -Wa,-me500 10714cf11afSPaul Mackerrascpu-as-$(CONFIG_E200) += -Wa,-me200 10814cf11afSPaul Mackerras 10914cf11afSPaul MackerrasAFLAGS += $(cpu-as-y) 11014cf11afSPaul MackerrasCFLAGS += $(cpu-as-y) 11114cf11afSPaul Mackerras 11214cf11afSPaul Mackerras# Default to the common case. 11314cf11afSPaul MackerrasKBUILD_DEFCONFIG := common_defconfig 11414cf11afSPaul Mackerras 11570d64ceaSPaul Mackerrashead-y := arch/powerpc/kernel/head_32.o 11614cf11afSPaul Mackerrashead-$(CONFIG_PPC64) := arch/powerpc/kernel/head_64.o 11714cf11afSPaul Mackerrashead-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o 11814cf11afSPaul Mackerrashead-$(CONFIG_4xx) := arch/powerpc/kernel/head_4xx.o 11914cf11afSPaul Mackerrashead-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o 12014cf11afSPaul Mackerrashead-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o 12114cf11afSPaul Mackerras 12214cf11afSPaul Mackerrashead-$(CONFIG_6xx) += arch/powerpc/kernel/idle_6xx.o 1239994a338SPaul Mackerrashead-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o 12414cf11afSPaul Mackerrashead-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o 12514cf11afSPaul Mackerras 126daec962eSPaul Mackerrascore-y += arch/powerpc/kernel/ \ 127daec962eSPaul Mackerras arch/$(OLDARCH)/kernel/ \ 128daec962eSPaul Mackerras arch/powerpc/mm/ \ 129daec962eSPaul Mackerras arch/powerpc/lib/ \ 130daec962eSPaul Mackerras arch/powerpc/sysdev/ \ 131daec962eSPaul Mackerras arch/powerpc/platforms/ 13214cf11afSPaul Mackerrascore-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/ 13314cf11afSPaul Mackerrascore-$(CONFIG_XMON) += arch/powerpc/xmon/ 13414cf11afSPaul Mackerrascore-$(CONFIG_APUS) += arch/ppc/amiga/ 13514cf11afSPaul Mackerrasdrivers-$(CONFIG_8xx) += arch/ppc/8xx_io/ 13614cf11afSPaul Mackerrasdrivers-$(CONFIG_4xx) += arch/ppc/4xx_io/ 13714cf11afSPaul Mackerrasdrivers-$(CONFIG_CPM2) += arch/ppc/8260_io/ 13814cf11afSPaul Mackerras 13914cf11afSPaul Mackerrasdrivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ 14014cf11afSPaul Mackerras 141cabb5587SStephen Rothwelldefaultimage-$(CONFIG_PPC32) := uImage zImage 142cabb5587SStephen Rothwelldefaultimage-$(CONFIG_PPC_ISERIES) := vmlinux 143*20f62954SPaul Mackerrasdefaultimage-$(CONFIG_PPC_PSERIES) := zImage 144cabb5587SStephen RothwellKBUILD_IMAGE := $(defaultimage-y) 145cabb5587SStephen Rothwellall: $(KBUILD_IMAGE) 14614cf11afSPaul Mackerras 14714cf11afSPaul MackerrasCPPFLAGS_vmlinux.lds := -Upowerpc 14814cf11afSPaul Mackerras 14914cf11afSPaul Mackerras# All the instructions talk about "make bzImage". 15014cf11afSPaul MackerrasbzImage: zImage 15114cf11afSPaul Mackerras 152cabb5587SStephen RothwellBOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm 153cabb5587SStephen Rothwell 154cabb5587SStephen Rothwell.PHONY: $(BOOT_TARGETS) 155cabb5587SStephen Rothwell 156a3a9e99eSPaul Mackerrasboot := arch/$(OLDARCH)/boot 15714cf11afSPaul Mackerras 158*20f62954SPaul Mackerras# urk 159*20f62954SPaul Mackerrasifeq ($(CONFIG_PPC64),y) 16014cf11afSPaul Mackerras$(BOOT_TARGETS): vmlinux 161*20f62954SPaul Mackerras $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) 162*20f62954SPaul Mackerraselse 163*20f62954SPaul Mackerras$(BOOT_TARGETS): vmlinux 164*20f62954SPaul Mackerras $(Q)$(MAKE) ARCH=ppc $(build)=$(boot) $@ 165*20f62954SPaul Mackerrasendif 16614cf11afSPaul Mackerras 16714cf11afSPaul MackerrasuImage: vmlinux 168a3a9e99eSPaul Mackerras $(Q)$(MAKE) ARCH=$(OLDARCH) $(build)=$(boot)/images $(boot)/images/$@ 16914cf11afSPaul Mackerras 17014cf11afSPaul Mackerrasdefine archhelp 17114cf11afSPaul Mackerras @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)' 17214cf11afSPaul Mackerras @echo ' uImage - Create a bootable image for U-Boot / PPCBoot' 17314cf11afSPaul Mackerras @echo ' install - Install kernel using' 17414cf11afSPaul Mackerras @echo ' (your) ~/bin/installkernel or' 17514cf11afSPaul Mackerras @echo ' (distribution) /sbin/installkernel or' 17614cf11afSPaul Mackerras @echo ' install to $$(INSTALL_PATH) and run lilo' 17714cf11afSPaul Mackerras @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs' 17814cf11afSPaul Mackerrasendef 17914cf11afSPaul Mackerras 18014cf11afSPaul Mackerrasarchclean: 181a3a9e99eSPaul Mackerras $(Q)$(MAKE) $(clean)=$(boot) 18214cf11afSPaul Mackerras # Temporary hack until we have migrated to asm-powerpc 18314cf11afSPaul Mackerras $(Q)rm -rf arch/$(ARCH)/include 18414cf11afSPaul Mackerras 18514cf11afSPaul Mackerrasarchprepare: checkbin 18614cf11afSPaul Mackerras 18714cf11afSPaul Mackerras# Temporary hack until we have migrated to asm-powerpc 18814cf11afSPaul Mackerrasinclude/asm: arch/$(ARCH)/include/asm 18914cf11afSPaul Mackerrasarch/$(ARCH)/include/asm: 19014cf11afSPaul Mackerras $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi 191bbeb3f4cSStephen Rothwell $(Q)ln -fsn $(srctree)/include/asm-$(OLDARCH) arch/$(ARCH)/include/asm 19214cf11afSPaul Mackerras 19314cf11afSPaul Mackerras# Use the file '.tmp_gas_check' for binutils tests, as gas won't output 19414cf11afSPaul Mackerras# to stdout and these checks are run even on install targets. 19514cf11afSPaul MackerrasTOUT := .tmp_gas_check 19614cf11afSPaul Mackerras# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec 19714cf11afSPaul Mackerras# instructions. 19814cf11afSPaul Mackerras# gcc-3.4 and binutils-2.14 are a fatal combination. 19914cf11afSPaul MackerrasGCC_VERSION := $(call cc-version) 20014cf11afSPaul Mackerras 20114cf11afSPaul Mackerrascheckbin: 20214cf11afSPaul Mackerras @if test "$(GCC_VERSION)" = "0304" ; then \ 20314cf11afSPaul Mackerras if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ 20414cf11afSPaul Mackerras echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ 20514cf11afSPaul Mackerras echo 'correctly with gcc-3.4 and your version of binutils.'; \ 20614cf11afSPaul Mackerras echo '*** Please upgrade your binutils or downgrade your gcc'; \ 20714cf11afSPaul Mackerras false; \ 20814cf11afSPaul Mackerras fi ; \ 20914cf11afSPaul Mackerras fi 21014cf11afSPaul Mackerras @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \ 21114cf11afSPaul Mackerras echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \ 21214cf11afSPaul Mackerras echo 'correctly with old versions of binutils.' ; \ 21314cf11afSPaul Mackerras echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \ 21414cf11afSPaul Mackerras false ; \ 21514cf11afSPaul Mackerras fi 21614cf11afSPaul Mackerras 21714cf11afSPaul MackerrasCLEAN_FILES += $(TOUT) 21814cf11afSPaul Mackerras 219