#
# arch/sh/Makefile
#
# Copyright (C) 1999 Kaz Kojima
# Copyright (C) 2002 - 2008 Paul Mundt
# Copyright (C) 2002 M. R. Brown
#
# 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.
#
ifdef cross_compiling
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := $(call cc-cross-prefix, sh-linux- sh-linux-gnu- sh-unknown-linux-gnu-)
endif
endif
KBUILD_DEFCONFIG := shx3_defconfig
isa-y := any
isa-$(CONFIG_SH_DSP) := sh
isa-$(CONFIG_CPU_SH2) := sh2
isa-$(CONFIG_CPU_SH2A) := sh2a
isa-$(CONFIG_CPU_SH3) := sh3
isa-$(CONFIG_CPU_SH4) := sh4
isa-$(CONFIG_CPU_SH4A) := sh4a
isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al
isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp
isa-y := $(isa-y)-up
cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,)
cflags-$(CONFIG_CPU_J2) += $(call cc-option,-mj2,)
cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \
$(call cc-option,-m2a-nofpu,) \
$(call cc-option,-m4-nofpu,)
cflags-$(CONFIG_CPU_SH3) := $(call cc-option,-m3,)
cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
$(call cc-option,-mno-implicit-fp,-m4-nofpu)
cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \
$(call cc-option,-m4a-nofpu,)
cflags-$(CONFIG_CPU_SH4AL_DSP) += $(call cc-option,-m4al,)
ifeq ($(cflags-y),)
#
# In the case where we are stuck with a compiler that has been uselessly
# restricted to a particular ISA, a favourite default of newer GCCs when
# extensive multilib targets are not provided, ensure we get the best fit
# regarding FP generation. This is intentionally stupid (albeit many
# orders of magnitude less than GCC's default behaviour), as anything
# with a large number of multilib targets better have been built
# correctly for the target in mind.
#
cflags-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \
grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//')
# At this point, anything goes.
isaflags-y := $(call as-option,-Wa$(comma)-isa=any,)
else
#
# -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
# support it, while -Wa,-dsp by itself limits the range of usable opcodes
# on certain CPU subtypes. Try the ISA variant first, and if that fails,
# fall back on -Wa,-dsp for the old binutils versions. Even without DSP
# opcodes, we always want the best ISA tuning the version of binutils
# will provide.
#
isaflags-y := $(call as-option,-Wa$(comma)-isa=$(isa-y),)
isaflags-$(CONFIG_SH_DSP) := \
$(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp)
endif
cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml
cflags-y += $(call cc-option,-mno-fdpic)
cflags-y += $(isaflags-y) -ffreestanding
OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment \
-R .stab -R .stabstr -S
# Give the various platforms the opportunity to set default image types
defaultimage-y := zImage
defaultimage-$(CONFIG_SH_SH7785LCR) := uImage
defaultimage-$(CONFIG_SH_RSK) := uImage
defaultimage-$(CONFIG_SH_URQUELL) := uImage
defaultimage-$(CONFIG_SH_MIGOR) := uImage
defaultimage-$(CONFIG_SH_AP325RXA) := uImage
defaultimage-$(CONFIG_SH_SH7757LCR) := uImage
defaultimage-$(CONFIG_SH_7724_SOLUTION_ENGINE) := uImage
defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE) := vmlinux
defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE) := vmlinux
# Set some sensible Kbuild defaults
boot := arch/sh/boot
KBUILD_IMAGE := $(boot)/$(defaultimage-y)
#
# Choosing incompatible machines durings configuration will result in
# error messages during linking.
#
UTS_MACHINE := sh
LDFLAGS_vmlinux += -e _stext
ifdef CONFIG_CPU_LITTLE_ENDIAN
ld_bfd := elf32-sh-linux
LDFLAGS_vmlinux += --defsym jiffies=jiffies_64 --oformat $(ld_bfd)
KBUILD_LDFLAGS += -EL
else
ld_bfd := elf32-shbig-linux
LDFLAGS_vmlinux += --defsym jiffies=jiffies_64+4 --oformat $(ld_bfd)
KBUILD_LDFLAGS += -EB
endif
export ld_bfd
# Mach groups
machdir-$(CONFIG_SOLUTION_ENGINE) += mach-se
machdir-$(CONFIG_SH_DREAMCAST) += mach-dreamcast
machdir-$(CONFIG_SH_SH03) += mach-sh03
machdir-$(CONFIG_SH_MIGOR) += mach-migor
machdir-$(CONFIG_SH_KFR2R09) += mach-kfr2r09
machdir-$(CONFIG_SH_ECOVEC) += mach-ecovec24
machdir-$(CONFIG_SH_SDK7786) += mach-sdk7786
machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto
machdir-$(CONFIG_SH_LANDISK) += mach-landisk
machdir-y += mach-common
#
# CPU header paths
#
# These are ordered by optimization level. A CPU family that is a subset
# of another (ie, SH-2A / SH-2), is picked up first, with increasing
# levels of genericness if nothing more suitable is situated in the
# hierarchy.
#
# As an example, in order of preference, SH-2A > SH-2 > common definitions.
#
cpuincdir-$(CONFIG_CPU_SH2A) += cpu-sh2a
cpuincdir-$(CONFIG_CPU_SH2) += cpu-sh2
cpuincdir-$(CONFIG_CPU_SH3) += cpu-sh3
cpuincdir-$(CONFIG_CPU_SH4A) += cpu-sh4a
cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4
cpuincdir-y += cpu-common # Must be last
drivers-y += arch/sh/drivers/
KBUILD_CPPFLAGS += $(addprefix -I $(srctree)/arch/sh/include/, $(cpuincdir-y) $(machdir-y))
KBUILD_CFLAGS += -pipe $(cflags-y)
KBUILD_AFLAGS += $(cflags-y)
ifeq ($(CONFIG_MCOUNT),y)
KBUILD_CFLAGS += -pg
endif
ifeq ($(CONFIG_DWARF_UNWINDER),y)
KBUILD_CFLAGS += -fasynchronous-unwind-tables
endif
libs-y := arch/sh/lib/ $(libs-y)
BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \
uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \
romImage
PHONY += $(BOOT_TARGETS)
all: $(notdir $(KBUILD_IMAGE))
$(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
compressed: zImage
archprepare:
$(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h
archheaders:
$(Q)$(MAKE) $(build)=arch/sh/kernel/syscalls all
define archhelp
@echo ' zImage - Compressed kernel image'
@echo ' romImage - Compressed ROM image, if supported'
@echo ' vmlinux.srec - Create an ELF S-record'
@echo ' vmlinux.bin - Create an uncompressed binary image'
@echo '* uImage - Alias to bootable U-Boot image'
@echo ' uImage.srec - Create an S-record for U-Boot'
@echo ' uImage.bin - Kernel-only image for U-Boot (bin)'
@echo '* uImage.gz - Kernel-only image for U-Boot (gzip)'
@echo ' uImage.bz2 - Kernel-only image for U-Boot (bzip2)'
@echo ' uImage.lzma - Kernel-only image for U-Boot (lzma)'
@echo ' uImage.xz - Kernel-only image for U-Boot (xz)'
@echo ' uImage.lzo - Kernel-only image for U-Boot (lzo)'
endef