--- /dev/null
+# 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
+CROSS32AS := $(CROSS32_COMPILE)as
+CROSS32LD := $(CROSS32_COMPILE)ld
+CROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy
+
+ifeq ($(HAS_BIARCH),y)
+ifeq ($(CROSS32_COMPILE),)
+CROSS32CC := $(CC) -m32
+CROSS32AS := $(AS) -a32
+CROSS32LD := $(LD) -m elf32ppc
+CROSS32OBJCOPY := $(OBJCOPY)
+endif
+endif
+
+export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY
+
+KBUILD_DEFCONFIG := $(shell uname -m)_defconfig
+
+ifeq ($(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)
+NM := $(NM) --synthetic
+endif
+
+else
+OLDARCH := ppc
+SZ := 32
+endif
+
+UTS_MACHINE := $(OLDARCH)
+
+ifeq ($(HAS_BIARCH),y)
+override AS += -a$(SZ)
+override LD += -m elf$(SZ)ppc
+override CC += -m$(SZ)
+endif
+
+LDFLAGS_vmlinux := -Bstatic
+
+# The -Iarch/$(ARCH)/include is temporary while we are merging
+CPPFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -Iarch/$(ARCH)/include
+AFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH)
+CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc
+CFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -ffixed-r2 -mmultiple
+CPPFLAGS += $(CPPFLAGS-y)
+AFLAGS += $(AFLAGS-y)
+CFLAGS += -msoft-float -pipe $(CFLAGS-y)
+CPP = $(CC) -E $(CFLAGS)
+# Temporary hack until we have migrated to asm-powerpc
+LINUXINCLUDE-$(CONFIG_PPC32) := -Iarch/$(ARCH)/include
+LINUXINCLUDE += $(LINUXINCLUDE-y)
+
+CHECKFLAGS += -m$(SZ) -D__powerpc__ -D__powerpc$(SZ)__
+
+ifeq ($(CONFIG_PPC64),y)
+GCC_BROKEN_VEC := $(shell if [ $(call cc-version) -lt 0400 ] ; then echo "y"; fi)
+
+ifeq ($(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
+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 += $(call cc-option,-funit-at-a-time)
+
+ifndef CONFIG_FSL_BOOKE
+CFLAGS += -mstring
+endif
+
+ifeq ($(CONFIG_6xx),y)
+CFLAGS += -mcpu=powerpc
+endif
+
+cpu-as-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
+cpu-as-$(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
+
+AFLAGS += $(cpu-as-y)
+CFLAGS += $(cpu-as-y)
+
+head-y := arch/powerpc/kernel/head_32.o
+head-$(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
+
+head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o
+head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
+
+core-y += arch/powerpc/kernel/ \
+ arch/powerpc/mm/ \
+ arch/powerpc/lib/ \
+ arch/powerpc/sysdev/ \
+ arch/powerpc/platforms/
+core-$(CONFIG_MATH_EMULATION) += arch/powerpc/math-emu/
+core-$(CONFIG_XMON) += arch/powerpc/xmon/
+
+drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
+
+# Default to zImage, override when needed
+defaultimage-y := zImage
+defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
+defaultimage-$(CONFIG_DEFAULT_UIMAGE) := uImage
+KBUILD_IMAGE := $(defaultimage-y)
+all: $(KBUILD_IMAGE)
+
+CPPFLAGS_vmlinux.lds := -Upowerpc
+
+BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm uImage vmlinux.bin
+
+PHONY += $(BOOT_TARGETS)
+
+boot := arch/$(ARCH)/boot
+
+$(BOOT_TARGETS): vmlinux
+ $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+define archhelp
+ @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/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)/configs'
+endef
+
+archclean:
+ $(Q)$(MAKE) $(clean)=$(boot)
+
+archmrproper:
+ $(Q)rm -rf arch/$(ARCH)/include
+
+archprepare: checkbin
+
+ifeq ($(CONFIG_PPC32),y)
+# Temporary hack until we have migrated to asm-powerpc
+include/asm: arch/$(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/$(ARCH)/include/asm
+endif
+
+# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
+# to stdout and these checks are run even on install targets.
+TOUT := .tmp_gas_check
+# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
+# instructions.
+# gcc-3.4 and binutils-2.14 are a fatal combination.
+
+checkbin:
+ @if test "$(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 ! /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)
+
git://git.onelab.eu / linux-2.6.git / blobdiff