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8212f8986d
Documentation/kbuild/makefiles.rst suggests to use "archclean" for
cleaning arch/$(SRCARCH)/boot/, but it is not a hard requirement.
Since commit d92cc4d516 ("kbuild: require all architectures to have
arch/$(SRCARCH)/Kbuild"), we can use the "subdir- += boot" trick for
all architectures. This can take advantage of the parallel option (-j)
for "make clean".
I also cleaned up the comments in arch/$(SRCARCH)/Makefile. The "archdep"
target no longer exists.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
69 lines
1.7 KiB
Makefile
69 lines
1.7 KiB
Makefile
# 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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ifdef CONFIG_FUNCTION_TRACER
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arch-y += -malways-save-lp -mno-relax
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endif
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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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# Enable <nds32_intrinsic.h>
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KBUILD_CFLAGS += -isystem $(shell $(CC) -print-file-name=include)
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KBUILD_CFLAGS += $(call cc-option, -mno-sched-prolog-epilog)
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KBUILD_CFLAGS += -mcmodel=large
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KBUILD_CFLAGS +=$(arch-y) $(tune-y)
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KBUILD_AFLAGS +=$(arch-y) $(tune-y)
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#Default value
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head-y := arch/nds32/kernel/head.o
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textaddr-y := $(CONFIG_PAGE_OFFSET)+0xc000
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TEXTADDR := $(textaddr-y)
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export TEXTADDR
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# If we have a machine-specific directory, then include it in the build.
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core-y += arch/nds32/kernel/ arch/nds32/mm/
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core-$(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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BUILTIN_DTB := y
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else
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BUILTIN_DTB := n
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endif
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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KBUILD_CFLAGS += $(call cc-option, -EL)
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KBUILD_AFLAGS += $(call cc-option, -EL)
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KBUILD_LDFLAGS += $(call cc-option, -EL)
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CHECKFLAGS += -D__NDS32_EL__
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else
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KBUILD_CFLAGS += $(call cc-option, -EB)
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KBUILD_AFLAGS += $(call cc-option, -EB)
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KBUILD_LDFLAGS += $(call cc-option, -EB)
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CHECKFLAGS += -D__NDS32_EB__
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endif
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boot := arch/nds32/boot
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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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PHONY += vdso_install
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vdso_install:
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$(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso $@
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prepare: vdso_prepare
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vdso_prepare: prepare0
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$(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso include/generated/vdso-offsets.h
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define archhelp
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echo ' Image - kernel image (arch/$(ARCH)/boot/Image)'
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endef
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