1# SPDX-License-Identifier: GPL-2.0-only 2OBJCOPYFLAGS :=-O binary 3GZFLAGS :=-9 4 5ifdef CONFIG_CPU_HAS_FPU 6FPUEXT = f 7endif 8 9ifdef CONFIG_CPU_HAS_VDSP 10VDSPEXT = v 11endif 12 13ifdef CONFIG_CPU_HAS_TEE 14TEEEXT = t 15endif 16 17ifdef CONFIG_CPU_CK610 18CPUTYPE = ck610 19CSKYABI = abiv1 20endif 21 22ifdef CONFIG_CPU_CK810 23CPUTYPE = ck810 24CSKYABI = abiv2 25endif 26 27ifdef CONFIG_CPU_CK807 28CPUTYPE = ck807 29CSKYABI = abiv2 30endif 31 32ifdef CONFIG_CPU_CK860 33CPUTYPE = ck860 34CSKYABI = abiv2 35endif 36 37ifneq ($(CSKYABI),) 38MCPU_STR = $(CPUTYPE)$(FPUEXT)$(VDSPEXT)$(TEEEXT) 39KBUILD_CFLAGS += -mcpu=$(CPUTYPE) -Wa,-mcpu=$(MCPU_STR) 40KBUILD_CFLAGS += -DCSKYCPU_DEF_NAME=\"$(MCPU_STR)\" 41KBUILD_CFLAGS += -msoft-float -mdiv 42KBUILD_CFLAGS += -fno-tree-vectorize 43endif 44 45KBUILD_CFLAGS += -pipe 46ifeq ($(CSKYABI),abiv2) 47KBUILD_CFLAGS += -mno-stack-size 48endif 49 50ifdef CONFIG_FRAME_POINTER 51KBUILD_CFLAGS += -mbacktrace 52endif 53 54abidirs := $(patsubst %,arch/csky/%/,$(CSKYABI)) 55KBUILD_CFLAGS += $(patsubst %,-I$(srctree)/%inc,$(abidirs)) 56 57KBUILD_CPPFLAGS += -mlittle-endian 58LDFLAGS += -EL 59 60KBUILD_AFLAGS += $(KBUILD_CFLAGS) 61 62head-y := arch/csky/kernel/head.o 63 64core-y += arch/csky/$(CSKYABI)/ 65 66libs-y += arch/csky/lib/ \ 67 $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name) 68 69boot := arch/csky/boot 70 71all: zImage 72 73zImage Image uImage: vmlinux 74 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 75 76define archhelp 77 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 78 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 79 echo ' uImage - U-Boot wrapped zImage' 80endef 81