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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/arch/nds32/Makefile
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@@ -1,13 +1,13 @@
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+# SPDX-License-Identifier: GPL-2.0-only
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 LDFLAGS_vmlinux	:= --no-undefined -X
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 OBJCOPYFLAGS	:= -O binary -R .note -R .note.gnu.build-id -R .comment -S
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-
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-KBUILD_DEFCONFIG := defconfig
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-
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-comma = ,
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 ifdef CONFIG_FUNCTION_TRACER
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 arch-y += -malways-save-lp -mno-relax
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 endif
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+
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+# Avoid generating FPU instructions
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+arch-y  += -mno-ext-fpu-sp -mno-ext-fpu-dp -mfloat-abi=soft
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 KBUILD_CFLAGS	+= $(call cc-option, -mno-sched-prolog-epilog)
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 KBUILD_CFLAGS	+= -mcmodel=large
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@@ -26,6 +26,7 @@
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 # If we have a machine-specific directory, then include it in the build.
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 core-y				+= arch/nds32/kernel/ arch/nds32/mm/
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+core-$(CONFIG_FPU)              += arch/nds32/math-emu/
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 libs-y				+= arch/nds32/lib/
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 ifneq '$(CONFIG_NDS32_BUILTIN_DTB)' '""'
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@@ -47,9 +48,7 @@
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 endif
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 boot := arch/nds32/boot
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-core-$(BUILTIN_DTB) += $(boot)/dts/
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-
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-.PHONY: FORCE
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+core-y += $(boot)/dts/
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 Image: vmlinux
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 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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@@ -63,9 +62,6 @@
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 vdso_prepare: prepare0
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 	$(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso include/generated/vdso-offsets.h
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-CLEAN_FILES += include/asm-nds32/constants.h*
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-
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-# We use MRPROPER_FILES and CLEAN_FILES now
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 archclean:
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 	$(Q)$(MAKE) $(clean)=$(boot)
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