Changes in Makefile

b1992c37 - kbuild: use $(src) instead of $(srctree)/$(src) for source directory

Sat, 27 Apr 2024 14:55:02 +0000

kbuild: use $(src) instead of $(srctree)/$(src) for source directoryKbuild conventionally uses $(obj)/ for generated files, and $(src)/ forchecked-in source files. It is merely a convention without any functionaldifference. In fact, $(obj) and $(src) are exactly the same, as definedin scripts/Makefile.build: src := $(obj)When the kernel is built in a separate output directory, $(src) doesnot accurately reflect the source directory location. While Kbuildresolves this discrepancy by specifying VPATH=$(srctree) to search forsource files, it does not cover all cases. For example, when adding aheader search path for local headers, -I$(srctree)/$(src) is typicallypassed to the compiler.This introduces inconsistency between upstream and downstream Makefilesbecause $(src) is used instead of $(srctree)/$(src) for the latter.To address this inconsistency, this commit changes the semantics of$(src) so that it always points to the directory in the source tree.Going forward, the variables used in Makefiles will have the followingmeanings: $(obj) - directory in the object tree $(src) - directory in the source tree (changed by this commit) $(objtree) - the top of the kernel object tree $(srctree) - the top of the kernel source treeConsequently, $(srctree)/$(src) in upstream Makefiles need to be replacedwith $(src).Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux-6.15/arch/csky/boot/dts/Makefile

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/csky/boot/dts/Makefile

e8d0c9a7 - csky: use common dtb build rules

Tue, 30 Oct 2018 10:46:47 +0000

csky: use common dtb build rulesRemove the Kbuild rules in arch/csky and use common dtb build rules.This modification is based on:commit 37c8a5fafa3b ("kbuild: consolidate Devicetree dtb build rules")Signed-off-by: Guo Ren Reviewed-by: Rob Herring Acked-by: Arnd Bergmann List of files: /linux-6.15/arch/csky/boot/dts/Makefile

c4c14c3b - csky: remove builtin-dtb Kbuild

Tue, 30 Oct 2018 10:42:32 +0000

csky: remove builtin-dtb KbuildRemove the builtin-dtb implementation in arch/csky.Signed-off-by: Guo Ren Reviewed-by: Rob Herring Reviewed-by: Arnd Bergmann List of files: /linux-6.15/arch/csky/boot/dts/Makefile

c32e64e8 - csky: Build infrastructure

Wed, 05 Sep 2018 06:25:06 +0000

csky: Build infrastructureThis patch adds Makefile, Kconfig for build infrastructure.Signed-off-by: Guo Ren Acked-by: Arnd Bergmann List of files: /linux-6.15/arch/csky/boot/dts/Makefile