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-rw-r--r--kernel/arch/powerpc/Makefile341
1 files changed, 341 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/Makefile b/kernel/arch/powerpc/Makefile
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+++ b/kernel/arch/powerpc/Makefile
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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
+#
+
+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 -mno-strict-align
+override AS += -mlittle-endian
+override LD += -EL
+override CROSS32CC += -mlittle-endian
+override CROSS32AS += -mlittle-endian
+LDEMULATION := lppc
+GNUTARGET := powerpcle
+MULTIPLEWORD := -mno-multiple
+KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
+else
+ifeq ($(call cc-option-yn,-mbig-endian),y)
+override CC += -mbig-endian
+override AS += -mbig-endian
+endif
+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
+ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,-mcall-aixdesc)
+AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
+else
+CFLAGS-$(CONFIG_PPC64) += -mcall-aixdesc
+endif
+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) += $(call cc-option,-mcpu=power7)
+CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8)
+
+# Altivec option not allowed with e500mc64 in GCC.
+ifeq ($(CONFIG_ALTIVEC),y)
+E5500_CPU := -mcpu=powerpc64
+else
+E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
+endif
+CFLAGS-$(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)
+
+asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1)
+
+KBUILD_CPPFLAGS += -Iarch/$(ARCH) $(asinstr)
+KBUILD_AFLAGS += -Iarch/$(ARCH) $(AFLAGS-y)
+KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y)
+CPP = $(CC) -E $(KBUILD_CFLAGS)
+
+CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__
+
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+
+ifeq ($(CONFIG_476FPE_ERR46),y)
+ KBUILD_LDFLAGS_MODULE += --ppc476-workaround \
+ -T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
+endif
+
+# 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 = $(CONFIG_SHELL) $< "$(OBJDUMP)" "$(obj)/vmlinux"
+
+PHONY += relocs_check
+relocs_check: arch/powerpc/relocs_check.sh 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 "$(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 "$(cc-version)" -lt "0400" \
+ && test "x${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 "$(cc-fullversion)" = "040200" \
+ && test "x${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)
+