| # 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) |
| new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) |
| |
| ifeq ($(new_nm),y) |
| NM := $(NM) --synthetic |
| endif |
| endif |
| |
| ifeq ($(CONFIG_PPC64),y) |
| ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
| OLDARCH := ppc64le |
| else |
| OLDARCH := ppc64 |
| endif |
| else |
| ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
| OLDARCH := ppcle |
| else |
| OLDARCH := ppc |
| endif |
| 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 := $(OLDARCH) |
| |
| ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
| override CC += -mlittle-endian |
| override AS += -mlittle-endian |
| override LD += -EL |
| override CROSS32CC += -mlittle-endian |
| override CROSS32AS += -mlittle-endian |
| LDEMULATION := lppc |
| GNUTARGET := powerpcle |
| MULTIPLEWORD := -mno-multiple |
| else |
| override CC += -mbig-endian |
| override AS += -mbig-endian |
| override LD += -EB |
| LDEMULATION := ppc |
| GNUTARGET := powerpc |
| MULTIPLEWORD := -mmultiple |
| endif |
| |
| ifeq ($(HAS_BIARCH),y) |
| override AS += -a$(CONFIG_WORD_SIZE) |
| override LD += -m elf$(CONFIG_WORD_SIZE)$(LDEMULATION) |
| override CC += -m$(CONFIG_WORD_SIZE) |
| override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-$(GNUTARGET) $(AR) |
| endif |
| |
| LDFLAGS_vmlinux-y := -Bstatic |
| LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie |
| LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) |
| |
| ifeq ($(CONFIG_PPC64),y) |
| 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) := -mtraceback=no -mcall-aixdesc |
| CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,-mminimal-toc) |
| CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) |
| CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) |
| |
| ifeq ($(CONFIG_PPC_BOOK3S_64),y) |
| CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) |
| else |
| CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 |
| endif |
| |
| CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) |
| CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) |
| CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) |
| CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) |
| CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) |
| |
| E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64) |
| CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) |
| CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) |
| |
| ifeq ($(CONFIG_PPC32),y) |
| ifeq ($(CONFIG_PPC_E500MC),y) |
| CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc) |
| else |
| CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc) |
| endif |
| endif |
| |
| CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell) |
| |
| KBUILD_CPPFLAGS += -Iarch/$(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)__ |
| |
| KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o |
| |
| # 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 += $(call cc-option,-fno-dwarf2-cfi-asm) |
| |
| # Never use string load/store instructions as they are |
| # often slow when they are implemented at all |
| KBUILD_CFLAGS += -mno-string |
| |
| ifeq ($(CONFIG_6xx),y) |
| KBUILD_CFLAGS += -mcpu=powerpc |
| endif |
| |
| # Work around a gcc code-gen bug with -fno-omit-frame-pointer. |
| ifeq ($(CONFIG_FUNCTION_TRACER),y) |
| KBUILD_CFLAGS += -mno-sched-epilog |
| endif |
| |
| cpu-as-$(CONFIG_4xx) += -Wa,-m405 |
| cpu-as-$(CONFIG_ALTIVEC) += -Wa,-maltivec |
| cpu-as-$(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 |
| head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o |
| head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o |
| |
| core-y += arch/powerpc/kernel/ \ |
| arch/powerpc/mm/ \ |
| arch/powerpc/lib/ \ |
| arch/powerpc/sysdev/ \ |
| arch/powerpc/platforms/ \ |
| arch/powerpc/math-emu/ \ |
| arch/powerpc/crypto/ \ |
| arch/powerpc/net/ |
| core-$(CONFIG_XMON) += arch/powerpc/xmon/ |
| core-$(CONFIG_KVM) += arch/powerpc/kvm/ |
| core-$(CONFIG_PERF_EVENTS) += arch/powerpc/perf/ |
| |
| drivers-$(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 |
| |
| ifeq ($(CONFIG_RELOCATABLE),y) |
| quiet_cmd_relocs_check = CALL $< |
| cmd_relocs_check = perl $< "$(OBJDUMP)" "$(obj)/vmlinux" |
| |
| PHONY += relocs_check |
| relocs_check: arch/powerpc/relocs_check.pl vmlinux |
| $(call cmd,relocs_check) |
| |
| zImage: relocs_check |
| endif |
| |
| $(BOOT_TARGETS1): vmlinux |
| $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
| $(BOOT_TARGETS2): vmlinux |
| $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
| |
| |
| bootwrapper_install: |
| $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
| |
| %.dtb: scripts |
| $(Q)$(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 |
| |
| # Check gcc and binutils versions: |
| # - gcc-3.4 and binutils-2.14 are a fatal combination |
| # - Require gcc 4.0 or above on 64-bit |
| # - gcc-4.2.0 has issues compiling modules on 64-bit |
| 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 "$(call cc-version)" -lt "0400" \ |
| && test "x${CONFIG_PPC64}" = "xy" ; then \ |
| echo -n "Sorry, GCC v4.0 or above is required to build " ; \ |
| echo "the 64-bit powerpc kernel." ; \ |
| false ; \ |
| 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 |
| |
| CLEAN_FILES += $(TOUT) |
| |