initial_commit

1 files changed, 265 insertions, 0 deletions

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
new file mode 100644
index 00000000..b7212b61
--- /dev/null
+++ b/arch/powerpc/Makefile
@@ -0,0 +1,265 @@
+# 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)
+OLDARCH	:= ppc64
+
+new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
+
+ifeq ($(new_nm),y)
+NM		:= $(NM) --synthetic
+endif
+
+else
+OLDARCH	:= ppc
+endif
+
+# It seems there are times we use this Makefile without
+# including the config file, but this replicates the old behaviour
+ifeq ($(CONFIG_WORD_SIZE),)
+CONFIG_WORD_SIZE := 32
+endif
+
+UTS_MACHINE := $(OLDARCH)
+
+ifeq ($(HAS_BIARCH),y)
+override AS	+= -a$(CONFIG_WORD_SIZE)
+override LD	+= -m elf$(CONFIG_WORD_SIZE)ppc
+override CC	+= -m$(CONFIG_WORD_SIZE)
+override AR	:= GNUTARGET=elf$(CONFIG_WORD_SIZE)-powerpc $(AR)
+endif
+
+LDFLAGS_vmlinux-yy := -Bstatic
+LDFLAGS_vmlinux-$(CONFIG_PPC64)$(CONFIG_RELOCATABLE) := -pie
+LDFLAGS_vmlinux	:= $(LDFLAGS_vmlinux-yy)
+
+CFLAGS-$(CONFIG_PPC64)	:= -mminimal-toc -mtraceback=none  -mcall-aixdesc
+CFLAGS-$(CONFIG_PPC32)	:= -ffixed-r2 -mmultiple
+KBUILD_CPPFLAGS	+= -Iarch/$(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$(CONFIG_WORD_SIZE)__
+
+ifeq ($(CONFIG_PPC64),y)
+GCC_BROKEN_VEC	:= $(call cc-ifversion, -lt, 0400, y)
+
+ifeq ($(CONFIG_POWER4_ONLY),y)
+ifeq ($(CONFIG_ALTIVEC),y)
+ifeq ($(GCC_BROKEN_VEC),y)
+	KBUILD_CFLAGS += $(call cc-option,-mcpu=970)
+else
+	KBUILD_CFLAGS += $(call cc-option,-mcpu=power4)
+endif
+else
+	KBUILD_CFLAGS += $(call cc-option,-mcpu=power4)
+endif
+else
+	KBUILD_CFLAGS += $(call cc-option,-mtune=power4)
+endif
+endif
+
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+
+ifeq ($(CONFIG_TUNE_CELL),y)
+	KBUILD_CFLAGS += $(call cc-option,-mtune=cell)
+endif
+
+# No AltiVec instruction when building kernel
+KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
+
+# 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-$(CONFIG_6xx)		+= -Wa,-maltivec
+cpu-as-$(CONFIG_POWER4)		+= -Wa,-maltivec
+cpu-as-$(CONFIG_E500)		+= -Wa,-me500
+cpu-as-$(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-$(CONFIG_ALTIVEC)		+= arch/powerpc/kernel/vector.o
+
+core-y				+= arch/powerpc/kernel/ \
+				   arch/powerpc/mm/ \
+				   arch/powerpc/lib/ \
+				   arch/powerpc/sysdev/ \
+				   arch/powerpc/platforms/ \
+				   arch/powerpc/math-emu/
+core-$(CONFIG_XMON)		+= arch/powerpc/xmon/
+core-$(CONFIG_KVM) 		+= arch/powerpc/kvm/
+
+drivers-$(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.%
+
+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:
+	$(Q)$(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
+# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
+# instructions.
+# gcc-3.4 and binutils-2.14 are a fatal combination.
+
+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 "$(call cc-fullversion)" = "040200" \
+	    && test "x${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
+	@if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
+		echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
+		echo 'correctly with old versions of binutils.' ; \
+		echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
+		false ; \
+	fi
+
+CLEAN_FILES += $(TOUT)
+