arch/nds32/Makefile

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 LDFLAGS_vmlinux := --no-undefined -X
   3 OBJCOPYFLAGS    := -O binary -R .note -R .note.gnu.build-id -R .comment -S
   4
   5 KBUILD_DEFCONFIG := defconfig
   6
   7 ifdef CONFIG_FUNCTION_TRACER
   8 arch-y += -malways-save-lp -mno-relax
   9 endif
  10
  11 # Avoid generating FPU instructions
  12 arch-y  += -mno-ext-fpu-sp -mno-ext-fpu-dp -mfloat-abi=soft
  13
  14 KBUILD_CFLAGS   += $(call cc-option, -mno-sched-prolog-epilog)
  15 KBUILD_CFLAGS   += -mcmodel=large
  16
  17 KBUILD_CFLAGS   +=$(arch-y) $(tune-y)
  18 KBUILD_AFLAGS   +=$(arch-y) $(tune-y)
  19
  20 #Default value
  21 head-y           := arch/nds32/kernel/head.o
  22 textaddr-y       := $(CONFIG_PAGE_OFFSET)+0xc000
  23
  24 TEXTADDR := $(textaddr-y)
  25
  26 export  TEXTADDR
  27
  28
  29 # If we have a machine-specific directory, then include it in the build.
  30 core-y                          += arch/nds32/kernel/ arch/nds32/mm/
  31 core-$(CONFIG_FPU)              += arch/nds32/math-emu/
  32 libs-y                          += arch/nds32/lib/
  33
  34 ifneq '$(CONFIG_NDS32_BUILTIN_DTB)' '""'
  35 BUILTIN_DTB := y
  36 else
  37 BUILTIN_DTB := n
  38 endif
  39
  40 ifdef CONFIG_CPU_LITTLE_ENDIAN
  41 KBUILD_CFLAGS   += $(call cc-option, -EL)
  42 KBUILD_AFLAGS   += $(call cc-option, -EL)
  43 KBUILD_LDFLAGS  += $(call cc-option, -EL)
  44 CHECKFLAGS      += -D__NDS32_EL__
  45 else
  46 KBUILD_CFLAGS   += $(call cc-option, -EB)
  47 KBUILD_AFLAGS   += $(call cc-option, -EB)
  48 KBUILD_LDFLAGS  += $(call cc-option, -EB)
  49 CHECKFLAGS      += -D__NDS32_EB__
  50 endif
  51
  52 boot := arch/nds32/boot
  53 core-y += $(boot)/dts/
  54
  55 Image: vmlinux
  56         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  57
  58
  59 PHONY += vdso_install
  60 vdso_install:
  61         $(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso $@
  62
  63 prepare: vdso_prepare
  64 vdso_prepare: prepare0
  65         $(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso include/generated/vdso-offsets.h
  66
  67 archclean:
  68         $(Q)$(MAKE) $(clean)=$(boot)
  69
  70 define archhelp
  71   echo  '  Image         - kernel image (arch/$(ARCH)/boot/Image)'
  72 endef