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acrn-kernel/arch/csky/Makefile

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csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
OBJCOPYFLAGS :=-O binary
GZFLAGS :=-9
KBUILD_DEFCONFIG := defconfig
ifdef CONFIG_CPU_HAS_FPU
FPUEXT = f
endif
ifdef CONFIG_CPU_HAS_VDSP
VDSPEXT = v
endif
ifdef CONFIG_CPU_HAS_TEE
TEEEXT = t
endif
ifdef CONFIG_CPU_CK610
CPUTYPE = ck610
CSKYABI = abiv1
endif
ifdef CONFIG_CPU_CK810
CPUTYPE = ck810
CSKYABI = abiv2
endif
ifdef CONFIG_CPU_CK807
CPUTYPE = ck807
CSKYABI = abiv2
endif
ifdef CONFIG_CPU_CK860
CPUTYPE = ck860
CSKYABI = abiv2
endif
ifneq ($(CSKYABI),)
MCPU_STR = $(CPUTYPE)$(FPUEXT)$(VDSPEXT)$(TEEEXT)
csky: Fixup vdsp&fpu issues in kernel This fixup is continue to commit 35ff802af1c4 (csky: fixup remove vdsp implement for kernel.) and in that patch I didn't finish the job. We must forbid gcc to generate any vdsp & fpu instructions and remove vdsp asm in memmove.S. eg: For GCC it's -mcpu=ck860 and For AS it's -Wa,-mcpu=ck860fv Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-02-19 12:32:41 +08:00
KBUILD_CFLAGS += -mcpu=$(CPUTYPE) -Wa,-mcpu=$(MCPU_STR)
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
KBUILD_CFLAGS += -DCSKYCPU_DEF_NAME=\"$(MCPU_STR)\"
KBUILD_CFLAGS += -msoft-float -mdiv
KBUILD_CFLAGS += -fno-tree-vectorize
endif
KBUILD_CFLAGS += -pipe
ifeq ($(CSKYABI),abiv2)
KBUILD_CFLAGS += -mno-stack-size
endif
csky: stacktrace supported. The gcc option "-mbacktrace" will push fp(r8),lr into stack and we could unwind the stack with: fp = *fp lr = (unsigned int *)fp[1] Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2018-12-09 14:18:05 +08:00
ifdef CONFIG_STACKTRACE
KBUILD_CFLAGS += -mbacktrace
endif
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
abidirs := $(patsubst %,arch/csky/%/,$(CSKYABI))
KBUILD_CFLAGS += $(patsubst %,-I$(srctree)/%inc,$(abidirs))
KBUILD_CPPFLAGS += -mlittle-endian
LDFLAGS += -EL
KBUILD_AFLAGS += $(KBUILD_CFLAGS)
head-y := arch/csky/kernel/head.o
core-y += arch/csky/kernel/
core-y += arch/csky/mm/
core-y += arch/csky/$(CSKYABI)/
libs-y += arch/csky/lib/ \
$(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)
boot := arch/csky/boot
core-y += $(boot)/dts/
all: zImage
csky: use common dtb build rules Remove the Kbuild rules in arch/csky and use common dtb build rules. This modification is based on: commit 37c8a5fafa3b ("kbuild: consolidate Devicetree dtb build rules") Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-10-30 18:46:47 +08:00
zImage Image uImage: vmlinux
csky: Build infrastructure This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:06 +08:00
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
define archhelp
echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
echo ' uImage - U-Boot wrapped zImage'
endef