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/scripts/dtc/include-prefixes/powerpc/Makefile

7ade8495 - powerpc: Remove Xilinx PPC405/PPC440 support

Thu, 21 May 2020 16:55:52 +0000

powerpc: Remove Xilinx PPC405/PPC440 supportThe latest Xilinx design tools called ISE and EDK has been released inOctober 2013. New tool doesn't support any PPC405/PPC440 new designs.These platforms are no longer supported and tested.PowerPC 405/440 port is orphan from 2013 bycommit cdeb89943bfc ("MAINTAINERS: Fix incorrect status tag") andcommit 19624236cce1 ("MAINTAINERS: Update Grant's email address and maintainership")that's why it is time to remove the support fot these platforms.Signed-off-by: Michal Simek Signed-off-by: Christophe Leroy Acked-by: Arnd Bergmann Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/8c593895e2cb57d232d85ce4d8c3a1aa7f0869cc.1590079968.git.christophe.leroy@csgroup.eu List of files: /linux-6.15/scripts/dtc/include-prefixes/powerpc/Makefile

acef5e01 - powerpc/dts: Build virtex dtbs

Tue, 08 Jan 2019 12:52:50 +0000

powerpc/dts: Build virtex dtbsI wanted to test the virtex440-ml507 qemu machine and found that thedtb for it was not built.All powerpc dtbs are only built when CONFIG_OF_ALL_DTBS is set whichdepend on COMPILE_TEST.This patch enables building of the virtex dtbs whenCONFIG_XILINX_VIRTEX440_GENERIC_BOARD is enabled.Signed-off-by: Corentin Labbe [mpe: Put both targets on a single line]Signed-off-by: Michael Ellerman List of files: /linux-6.15/scripts/dtc/include-prefixes/powerpc/Makefile

27e88af4 - powerpc: enable building all dtbs

Thu, 02 Aug 2018 21:32:21 +0000

powerpc: enable building all dtbsEnable the 'dtbs' target for powerpc. This allows building all the dtsfiles in arch/powerpc/boot/dts/ when COMPILE_TEST and OF_ALL_DTBS areenabled.Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.orgSigned-off-by: Rob Herring List of files: /linux-6.15/scripts/dtc/include-prefixes/powerpc/Makefile

1acf1cf8 - powerpc: build .dtb files in dts directory

Tue, 13 Oct 2015 18:24:16 +0000

powerpc: build .dtb files in dts directoryAlign powerpc with other architectures which build the dtb files in thesame directory as the dts files. This is also in line with most otherbuild targets which are located in the same directory as the source.This move will help enable the 'dtbs' target which builds all the dtbsregardless of kernel config.This transition could break some scripts if they expect dtb files in theold location.Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.orgSigned-off-by: Rob Herring List of files: /linux-6.15/scripts/dtc/include-prefixes/powerpc/Makefile