# Rewritten by Cort Dougan and Paul Mackerras
#
-# This must match PAGE_OFFSET in include/asm-powerpc/page.h.
-KERNELLOAD := $(CONFIG_KERNEL_START)
-
HAS_BIARCH := $(call cc-option-yn, -m32)
-ifeq ($(CONFIG_PPC64),y)
-OLDARCH := ppc64
-SZ := 64
-
# Set default 32 bits cross compilers for vdso and boot wrapper
CROSS32_COMPILE ?=
export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY
+ifeq ($(CONFIG_PPC64),y)
+OLDARCH := ppc64
+SZ := 64
+
new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
ifeq ($(new_nm),y)
SZ := 32
endif
+UTS_MACHINE := $(OLDARCH)
+
ifeq ($(HAS_BIARCH),y)
override AS += -a$(SZ)
override LD += -m elf$(SZ)ppc
override CC += -m$(SZ)
endif
-LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic -e $(KERNELLOAD)
+LDFLAGS_vmlinux := -Bstatic
# The -Iarch/$(ARCH)/include is temporary while we are merging
CPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
endif
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 += $(call cc-option,-funit-at-a-time)
# Default to the common case.
KBUILD_DEFCONFIG := common_defconfig
-head-y := arch/powerpc/kernel/head.o
+head-y := arch/powerpc/kernel/head_32.o
head-$(CONFIG_PPC64) := arch/powerpc/kernel/head_64.o
head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o
head-$(CONFIG_4xx) := arch/powerpc/kernel/head_4xx.o
head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o
head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o
-ifeq ($(CONFIG_PPC32),y)
-head-$(CONFIG_6xx) += arch/powerpc/kernel/idle_6xx.o
-head-$(CONFIG_POWER4) += arch/powerpc/kernel/idle_power4.o
+head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o
head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
-endif
core-y += arch/powerpc/kernel/ \
- arch/$(OLDARCH)/kernel/ \
arch/powerpc/mm/ \
arch/powerpc/lib/ \
arch/powerpc/sysdev/ \
arch/powerpc/platforms/
-core-$(CONFIG_PPC32) += arch/ppc/syslib/
+core-$(CONFIG_PPC32) += arch/ppc/kernel/
core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
core-$(CONFIG_XMON) += arch/powerpc/xmon/
core-$(CONFIG_APUS) += arch/ppc/amiga/
drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
-BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
-
-.PHONY: $(BOOT_TARGETS)
-
-all: uImage zImage
+defaultimage-$(CONFIG_PPC32) := zImage
+defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
+defaultimage-$(CONFIG_PPC_PSERIES) := zImage
+KBUILD_IMAGE := $(defaultimage-y)
+all: $(KBUILD_IMAGE)
CPPFLAGS_vmlinux.lds := -Upowerpc
# All the instructions talk about "make bzImage".
bzImage: zImage
-boot := arch/$(OLDARCH)/boot
+BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
-$(BOOT_TARGETS): vmlinux
- $(Q)$(MAKE) ARCH=$(OLDARCH) $(build)=$(boot) $@
+.PHONY: $(BOOT_TARGETS)
-uImage: vmlinux
- $(Q)$(MAKE) ARCH=$(OLDARCH) $(build)=$(boot)/images $(boot)/images/$@
+boot := arch/$(ARCH)/boot
+
+$(BOOT_TARGETS): vmlinux
+ $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
define archhelp
- @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
- @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
+ @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
@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/$(ARCH)/ppc/configs'
+ @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs'
endef
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
- # Temporary hack until we have migrated to asm-powerpc
$(Q)rm -rf arch/$(ARCH)/include
archprepare: checkbin
# Temporary hack until we have migrated to asm-powerpc
include/asm: arch/$(ARCH)/include/asm
-arch/$(ARCH)/include/asm:
+arch/$(ARCH)/include/asm: FORCE
$(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
$(Q)ln -fsn $(srctree)/include/asm-$(OLDARCH) arch/$(ARCH)/include/asm