arch/csky/Makefile

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