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5dd614761f
This was removed in the libgcc integration, but there are still some compilers that need this. We also relax the rules on the ISA tuning in the cases where there are no matches for the CPU tuning and adopt the -any default, which matches the intent of the isa-y target list. This compensates for mismatches where binutils supports a wide array of targets whilst the compiler is much more restricted. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
239 lines
7.6 KiB
Makefile
239 lines
7.6 KiB
Makefile
#
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# arch/sh/Makefile
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#
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# Copyright (C) 1999 Kaz Kojima
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# Copyright (C) 2002 - 2008 Paul Mundt
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# Copyright (C) 2002 M. R. Brown
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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isa-y := any
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isa-$(CONFIG_SH_DSP) := sh
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isa-$(CONFIG_CPU_SH2) := sh2
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isa-$(CONFIG_CPU_SH2A) := sh2a
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isa-$(CONFIG_CPU_SH3) := sh3
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isa-$(CONFIG_CPU_SH4) := sh4
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isa-$(CONFIG_CPU_SH4A) := sh4a
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isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al
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isa-$(CONFIG_CPU_SH5) := shmedia
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ifeq ($(CONFIG_SUPERH32),y)
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isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp
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isa-y := $(isa-y)-up
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endif
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cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,)
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cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \
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$(call cc-option,-m2a-nofpu,)
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cflags-$(CONFIG_CPU_SH3) := $(call cc-option,-m3,)
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cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
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$(call cc-option,-mno-implicit-fp,-m4-nofpu)
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cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \
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$(call cc-option,-m4a-nofpu,)
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cflags-$(CONFIG_CPU_SH4AL_DSP) += $(call cc-option,-m4al,)
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cflags-$(CONFIG_CPU_SH5) := $(call cc-option,-m5-32media-nofpu,)
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ifeq ($(cflags-y),)
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#
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# In the case where we are stuck with a compiler that has been uselessly
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# restricted to a particular ISA, a favourite default of newer GCCs when
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# extensive multilib targets are not provided, ensure we get the best fit
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# regarding FP generation. This is intentionally stupid (albeit many
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# orders of magnitude less than GCC's default behaviour), as anything
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# with a large number of multilib targets better have been built
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# correctly for the target in mind.
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#
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cflags-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \
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grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//')
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# At this point, anything goes.
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isaflags-y := $(call as-option,-Wa$(comma)-isa=any,)
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else
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#
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# -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
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# support it, while -Wa,-dsp by itself limits the range of usable opcodes
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# on certain CPU subtypes. Try the ISA variant first, and if that fails,
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# fall back on -Wa,-dsp for the old binutils versions. Even without DSP
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# opcodes, we always want the best ISA tuning the version of binutils
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# will provide.
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#
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isaflags-y := $(call as-option,-Wa$(comma)-isa=$(isa-y),)
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isaflags-$(CONFIG_SH_DSP) := \
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$(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp)
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endif
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb
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cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml
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cflags-y += $(call cc-option,-mno-fdpic)
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cflags-y += $(isaflags-y) -ffreestanding
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cflags-$(CONFIG_MORE_COMPILE_OPTIONS) += \
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$(shell echo $(CONFIG_COMPILE_OPTIONS) | sed -e 's/"//g')
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OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment \
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-R .stab -R .stabstr -S
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# Give the various platforms the opportunity to set default image types
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defaultimage-$(CONFIG_SUPERH32) := zImage
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defaultimage-$(CONFIG_SH_SH7785LCR) := uImage
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defaultimage-$(CONFIG_SH_RSK7203) := uImage
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defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE) := vmlinux
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defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE) := vmlinux
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# Set some sensible Kbuild defaults
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KBUILD_DEFCONFIG := shx3_defconfig
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KBUILD_IMAGE := $(defaultimage-y)
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#
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# Choosing incompatible machines durings configuration will result in
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# error messages during linking.
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#
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ifdef CONFIG_SUPERH32
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UTS_MACHINE := sh
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LDFLAGS_vmlinux += -e _stext
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else
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UTS_MACHINE := sh64
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LDFLAGS_vmlinux += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
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--defsym phys_stext_shmedia=phys_stext+1 \
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-e phys_stext_shmedia
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endif
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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LDFLAGS_vmlinux += --defsym 'jiffies=jiffies_64'
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LDFLAGS += -EL
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else
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LDFLAGS_vmlinux += --defsym 'jiffies=jiffies_64+4'
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LDFLAGS += -EB
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endif
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head-y := arch/sh/kernel/init_task.o
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head-$(CONFIG_SUPERH32) += arch/sh/kernel/head_32.o
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head-$(CONFIG_SUPERH64) += arch/sh/kernel/head_64.o
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core-y += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
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core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/
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# Mach groups
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machdir-$(CONFIG_SOLUTION_ENGINE) += mach-se
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machdir-$(CONFIG_SH_HP6XX) += mach-hp6xx
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machdir-$(CONFIG_SH_DREAMCAST) += mach-dreamcast
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machdir-$(CONFIG_SH_SH03) += mach-sh03
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machdir-$(CONFIG_SH_SECUREEDGE5410) += mach-snapgear
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machdir-$(CONFIG_SH_RTS7751R2D) += mach-r2d
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machdir-$(CONFIG_SH_7751_SYSTEMH) += mach-systemh
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machdir-$(CONFIG_SH_EDOSK7705) += mach-edosk7705
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machdir-$(CONFIG_SH_HIGHLANDER) += mach-highlander
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machdir-$(CONFIG_SH_MIGOR) += mach-migor
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machdir-$(CONFIG_SH_SDK7780) += mach-sdk7780
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machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto
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machdir-$(CONFIG_SH_SH7763RDP) += mach-sh7763rdp
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machdir-$(CONFIG_SH_SH4202_MICRODEV) += mach-microdev
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machdir-$(CONFIG_SH_LANDISK) += mach-landisk
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machdir-$(CONFIG_SH_TITAN) += mach-titan
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machdir-$(CONFIG_SH_LBOX_RE2) += mach-lboxre2
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machdir-$(CONFIG_SH_CAYMAN) += mach-cayman
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ifneq ($(machdir-y),)
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core-y += $(addprefix arch/sh/boards/, \
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$(filter-out ., $(patsubst %,%/,$(machdir-y))))
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endif
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# Common machine type headers. Not part of the arch/sh/boards/ hierarchy.
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machdir-y += mach-common
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# Companion chips
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core-$(CONFIG_HD6446X_SERIES) += arch/sh/cchips/hd6446x/
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#
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# CPU header paths
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#
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# These are ordered by optimization level. A CPU family that is a subset
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# of another (ie, SH-2A / SH-2), is picked up first, with increasing
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# levels of genericness if nothing more suitable is situated in the
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# hierarchy.
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#
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# As an example, in order of preference, SH-2A > SH-2 > common definitions.
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#
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cpuincdir-$(CONFIG_CPU_SH2A) += cpu-sh2a
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cpuincdir-$(CONFIG_CPU_SH2) += cpu-sh2
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cpuincdir-$(CONFIG_CPU_SH3) += cpu-sh3
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cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4
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cpuincdir-$(CONFIG_CPU_SH5) += cpu-sh5
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cpuincdir-y += cpu-common # Must be last
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drivers-y += arch/sh/drivers/
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drivers-$(CONFIG_OPROFILE) += arch/sh/oprofile/
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boot := arch/sh/boot
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cflags-y += $(foreach d, $(cpuincdir-y), -Iarch/sh/include/$(d)) \
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$(foreach d, $(machdir-y), -Iarch/sh/include/$(d))
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KBUILD_CFLAGS += -pipe $(cflags-y)
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KBUILD_CPPFLAGS += $(cflags-y)
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KBUILD_AFLAGS += $(cflags-y)
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LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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libs-$(CONFIG_SUPERH32) := arch/sh/lib/ $(libs-y)
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libs-$(CONFIG_SUPERH64) := arch/sh/lib64/ $(libs-y) $(LIBGCC)
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PHONY += maketools FORCE
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maketools: include/linux/version.h FORCE
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$(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
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all: $(KBUILD_IMAGE)
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zImage uImage uImage.srec vmlinux.srec: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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compressed: zImage
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archprepare: maketools arch/sh/lib64/syscalltab.h
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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define archhelp
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@echo '* zImage - Compressed kernel image'
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@echo ' vmlinux.srec - Create an ELF S-record'
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@echo ' uImage - Create a bootable image for U-Boot'
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@echo ' uImage.srec - Create an S-record for U-Boot'
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endef
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define filechk_gen-syscalltab
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(set -e; \
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echo "/*"; \
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echo " * DO NOT MODIFY."; \
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echo " *"; \
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echo " * This file was generated by arch/sh/Makefile"; \
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echo " * Any changes will be reverted at build time."; \
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echo " */"; \
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echo ""; \
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echo "#ifndef __SYSCALLTAB_H"; \
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echo "#define __SYSCALLTAB_H"; \
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echo ""; \
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echo "#include <linux/kernel.h>"; \
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echo ""; \
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echo "struct syscall_info {"; \
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echo " const char *name;"; \
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echo "} syscall_info_table[] = {"; \
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sed -e '/^.*\.long /!d;s// { "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
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s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
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echo "};"; \
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echo ""; \
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echo "#define NUM_SYSCALL_INFO_ENTRIES ARRAY_SIZE(syscall_info_table)";\
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echo ""; \
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echo "#endif /* __SYSCALLTAB_H */" )
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endef
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arch/sh/lib64/syscalltab.h: arch/sh/kernel/syscalls_64.S
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$(call filechk,gen-syscalltab)
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CLEAN_FILES += arch/sh/lib64/syscalltab.h \
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include/asm-sh/machtypes.h
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