unsupported
     ?ˆÅÌ„‚Ÿ¿É ?N    ?# 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 ?=

ifeq ($(HAS_BIARCH),y)
ifeq ($(CROSS32_COMPILE),)
ifdef CONFIG_PPC32
# These options will be overridden by any -mcpu option that the CPU
# or platform code sets later on the command line, but they are needed
# to set a sane 32-bit cpu target for the 64-bit cross compiler which
# may default to the wrong ISA.
KBUILD_CFLAGS		+= -mcpu=powerpc
KBUILD_AFLAGS		+= -mcpu=powerpc
endif
endif
endif

ifdef CONFIG_PPC_BOOK3S_32
KBUILD_CFLAGS		+= -mcpu=powerpc
endif

# If we're on a ppc/ppc64/ppc64le machine use that defconfig, otherwise just use
# ppc64_defconfig because we have nothing better to go on.
uname := $(shell uname -m)
KBUILD_DEFCONFIG := $(if $(filter ppc%,$(uname)),$(uname),ppc64)_defconfig

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

# BITS is used as extension for files which are available in a 32 bit
# and a 64 bit version to simplify shared Makefiles.
# e.g.: obj-y += foo_$(BITS).o
export BITS

ifdef CONFIG_PPC64
        BITS := 64
else
        BITS := 32
endif

machine-y = ppc
machine-$(CONFIG_PPC64) += 64
machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
UTS_MACHINE := $(subst $(space),,$(machine-y))

# XXX This needs to be before we override LD below
ifdef CONFIG_PPC32
KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
else
ifeq ($(call ld-ifversion, -ge, 22500, y),y)
# Have the linker provide sfpr if possible.
# There is a corresponding test in arch/powerpc/lib/Makefile
KBUILD_LDFLAGS_MODULE += --save-restore-funcs
else
KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
endif
endif

ifdef CONFIG_CPU_LITTLE_ENDIAN
KBUILD_CFLAGS	+= -mlittle-endian
KBUILD_LDFLAGS	+= -EL
LDEMULATION	:= lppc
GNUTARGET	:= powerpcle
MULTIPLEWORD	:= -mno-multiple
KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
else
KBUILD_CFLAGS += $(call cc-option,-mbig-endian)
KBUILD_LDFLAGS	+= -EB
LDEMULATION	:= ppc
GNUTARGET	:= powerpc
MULTIPLEWORD	:= -mmultiple
endif

ifdef CONFIG_PPC64
ifndef CONFIG_CC_IS_CLANG
cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mcall-aixdesc)
aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mabi=elfv2
endif
endif

ifndef CONFIG_CC_IS_CLANG
  cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mno-strict-align
endif

cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)
cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian
aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)
aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian

ifeq ($(HAS_BIARCH),y)
KBUILD_CFLAGS	+= -m$(BITS)
KBUILD_AFLAGS	+= -m$(BITS) -Wl,-a$(BITS)
KBUILD_LDFLAGS	+= -m elf$(BITS)$(LDEMULATION)
endif

cflags-$(CONFIG_STACKPROTECTOR)	+= -mstack-protector-guard=tls
ifdef CONFIG_PPC64
cflags-$(CONFIG_STACKPROTECTOR)	+= -mstack-protector-guard-reg=r13
else
cflags-$(CONFIG_STACKPROTECTOR)	+= -mstack-protector-guard-reg=r2
endif

LDFLAGS_vmlinux-y := -Bstatic
LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie
LDFLAGS_vmlinux	:= $(LDFLAGS_vmlinux-y)

ifdef CONFIG_PPC64
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 metho