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kbuild: exploit parallel building for CONFIG_HEADERS_CHECK
When CONFIG_HEADERS_CHECK is enabled, the headers_check is executed as a serialized task in the vmlinux recipe. Make it independent of vmlinux so that parallel building can process the headers_check and other build targets simultaneously. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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7
Makefile
7
Makefile
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@ -1035,9 +1035,6 @@ cmd_link-vmlinux = \
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$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
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vmlinux: scripts/link-vmlinux.sh autoksyms_recursive $(vmlinux-deps) FORCE
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ifdef CONFIG_HEADERS_CHECK
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$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
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endif
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ifdef CONFIG_GDB_SCRIPTS
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$(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
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endif
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@ -1208,6 +1205,10 @@ headers_check: headers_install
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$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
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$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi $(hdr-dst) HDRCHECK=1
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ifdef CONFIG_HEADERS_CHECK
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all: headers_check
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endif
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# ---------------------------------------------------------------------------
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# Kernel selftest
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