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- # 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
- # Adjusted for PPC64 by Tom Gall
- #
- KERNELLOAD := 0xc000000000000000
- # Set default 32 bits cross compilers for vdso and boot wrapper
- CROSS32_COMPILE ?=
- CROSS32CC := $(CROSS32_COMPILE)gcc
- CROSS32AS := $(CROSS32_COMPILE)as
- CROSS32LD := $(CROSS32_COMPILE)ld
- CROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy
- # If we have a biarch compiler, use it for 32 bits cross compile if
- # CROSS32_COMPILE wasn't explicitely defined, and add proper explicit
- # target type to target compilers
- HAS_BIARCH := $(call cc-option-yn, -m64)
- ifeq ($(HAS_BIARCH),y)
- ifeq ($(CROSS32_COMPILE),)
- CROSS32CC := $(CC) -m32
- CROSS32AS := $(AS) -a32
- CROSS32LD := $(LD) -m elf32ppc
- CROSS32OBJCOPY := $(OBJCOPY)
- endif
- override AS += -a64
- override LD += -m elf64ppc
- override CC += -m64
- endif
- export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY
- 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
- CHECKFLAGS += -m64 -D__powerpc__ -D__powerpc64__
- LDFLAGS := -m elf64ppc
- LDFLAGS_vmlinux := -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD)
- CFLAGS += -msoft-float -pipe -mminimal-toc -mtraceback=none \
- -mcall-aixdesc
- # Temporary hack until we have migrated to asm-powerpc
- CPPFLAGS += -Iarch/$(ARCH)/include
- GCC_VERSION := $(call cc-version)
- GCC_BROKEN_VEC := $(shell if [ $(GCC_VERSION) -lt 0400 ] ; then echo "y"; fi ;)
- ifeq ($(CONFIG_POWER4_ONLY),y)
- ifeq ($(CONFIG_ALTIVEC),y)
- ifeq ($(GCC_BROKEN_VEC),y)
- CFLAGS += $(call cc-option,-mcpu=970)
- else
- CFLAGS += $(call cc-option,-mcpu=power4)
- endif
- else
- CFLAGS += $(call cc-option,-mcpu=power4)
- endif
- else
- CFLAGS += $(call cc-option,-mtune=power4)
- endif
- # No AltiVec instruction when building kernel
- CFLAGS += $(call cc-option, -mno-altivec)
- # Enable unit-at-a-time mode when possible. It shrinks the
- # kernel considerably.
- CFLAGS += $(call cc-option,-funit-at-a-time)
- head-y := arch/ppc64/kernel/head.o
- head-y += arch/powerpc/kernel/fpu.o
- head-y += arch/powerpc/kernel/entry_64.o
- core-y += arch/ppc64/kernel/ arch/powerpc/kernel/
- core-y += arch/powerpc/mm/
- core-y += arch/powerpc/sysdev/
- core-y += arch/powerpc/platforms/
- core-y += arch/powerpc/lib/
- core-$(CONFIG_XMON) += arch/powerpc/xmon/
- drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
- boot := arch/ppc64/boot
- boottargets-$(CONFIG_PPC_PSERIES) += zImage zImage.initrd
- boottargets-$(CONFIG_PPC_PMAC) += zImage.vmode zImage.initrd.vmode
- boottargets-$(CONFIG_PPC_MAPLE) += zImage zImage.initrd
- boottargets-$(CONFIG_PPC_ISERIES) += vmlinux.sminitrd vmlinux.initrd vmlinux.sm
- boottargets-$(CONFIG_PPC_BPA) += zImage zImage.initrd
- $(boottargets-y): vmlinux
- $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
- bootimage-$(CONFIG_PPC_PSERIES) := $(boot)/zImage
- bootimage-$(CONFIG_PPC_PMAC) := vmlinux
- bootimage-$(CONFIG_PPC_MAPLE) := $(boot)/zImage
- bootimage-$(CONFIG_PPC_BPA) := $(boot)/zImage
- bootimage-$(CONFIG_PPC_ISERIES) := vmlinux
- BOOTIMAGE := $(bootimage-y)
- install: vmlinux
- $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
- defaultimage-$(CONFIG_PPC_PSERIES) := zImage
- defaultimage-$(CONFIG_PPC_PMAC) := zImage.vmode
- defaultimage-$(CONFIG_PPC_MAPLE) := zImage
- defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
- KBUILD_IMAGE := $(defaultimage-y)
- all: $(KBUILD_IMAGE)
- archclean:
- $(Q)$(MAKE) $(clean)=$(boot)
- # Temporary hack until we have migrated to asm-powerpc
- $(Q)rm -rf arch/$(ARCH)/include
- # Temporary hack until we have migrated to asm-powerpc
- include/asm: arch/$(ARCH)/include/asm
- arch/$(ARCH)/include/asm:
- $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
- $(Q)ln -fsn $(srctree)/include/asm-powerpc arch/$(ARCH)/include/asm
- define archhelp
- echo ' zImage.vmode - Compressed kernel image (arch/$(ARCH)/boot/zImage.vmode)'
- echo ' zImage.initrd.vmode - Compressed kernel image with initrd attached,'
- echo ' sourced from arch/$(ARCH)/boot/ramdisk.image.gz'
- echo ' (arch/$(ARCH)/boot/zImage.initrd.vmode)'
- echo ' zImage - zImage for pSeries machines'
- echo ' zImage.initrd - zImage with initrd for pSeries machines'
- endef
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