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Message-ID: <CAK7LNAQNVA0eVEZ_BEKVaVNq0J2iQnyPVJRCPwsXepnm_4UcfQ@mail.gmail.com>
Date: Tue, 6 Sep 2022 14:37:49 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH 00/15] kbuild: various cleanups
On Sun, Aug 28, 2022 at 11:40 AM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> - Avoid updating init/built-in.a twice
> - Run modpost just once instead of twice
> - Link vmlinux and modules in parallel
> - Remove head-y syntax
>
> These are ground works to make the further refactoring possible.
>
> This patch set is applicable after the following series:
> https://patchwork.kernel.org/project/linux-kbuild/list/?series=669437
>
>
> Masahiro Yamada (15):
> kbuild: remove duplicated dependency between modules and modules_check
> kbuild: refactor single builds of *.ko
> kbuild: move 'PHONY += modules_prepare' to the common part
> init/version.c: remove #include <linux/version.h>
> kbuild: build init/built-in.a just once
> kbuild: generate include/generated/compile.h in top Makefile
> scripts/mkcompile_h: move LC_ALL=C to '$LD -v'
> Revert "kbuild: Make scripts/compile.h when sh != bash"
> kbuild: rename modules.order in sub-directories to .modules.order
> kbuild: move core-y in top Makefile to ./Kbuild
> kbuild: move .vmlinux.objs rule to Makefile.modpost
> kbuild: move vmlinux.o rule to the top Makefile
> kbuild: unify two modpost invocations
> kbuild: use obj-y instead extra-y for objects placed at the head
> kbuild: remove head-y syntax
I moved 01-08 to for-next.
10 broke single target builds.
I will send v2 for the rest.
> Documentation/kbuild/makefiles.rst | 27 +----
> Kbuild | 16 +++
> Makefile | 120 ++++++++++++--------
> arch/alpha/Makefile | 2 -
> arch/alpha/kernel/Makefile | 4 +-
> arch/arc/Makefile | 2 -
> arch/arc/kernel/Makefile | 4 +-
> arch/arm/Makefile | 3 -
> arch/arm/kernel/Makefile | 4 +-
> arch/arm64/Makefile | 3 -
> arch/arm64/kernel/Makefile | 4 +-
> arch/csky/Makefile | 2 -
> arch/csky/kernel/Makefile | 4 +-
> arch/hexagon/Makefile | 2 -
> arch/hexagon/kernel/Makefile | 3 +-
> arch/ia64/Makefile | 1 -
> arch/ia64/kernel/Makefile | 4 +-
> arch/loongarch/Makefile | 2 -
> arch/loongarch/kernel/Makefile | 4 +-
> arch/m68k/68000/Makefile | 2 +-
> arch/m68k/Makefile | 9 --
> arch/m68k/coldfire/Makefile | 2 +-
> arch/m68k/kernel/Makefile | 21 ++--
> arch/microblaze/Makefile | 1 -
> arch/microblaze/kernel/Makefile | 4 +-
> arch/mips/Makefile | 2 -
> arch/mips/kernel/Makefile | 4 +-
> arch/nios2/Makefile | 1 -
> arch/nios2/kernel/Makefile | 2 +-
> arch/openrisc/Makefile | 2 -
> arch/openrisc/kernel/Makefile | 4 +-
> arch/parisc/Makefile | 2 -
> arch/parisc/kernel/Makefile | 4 +-
> arch/powerpc/Makefile | 12 --
> arch/powerpc/kernel/Makefile | 22 ++--
> arch/riscv/Makefile | 2 -
> arch/riscv/kernel/Makefile | 2 +-
> arch/s390/Makefile | 2 -
> arch/s390/boot/version.c | 1 +
> arch/s390/kernel/Makefile | 4 +-
> arch/sh/Makefile | 2 -
> arch/sh/kernel/Makefile | 4 +-
> arch/sparc/Makefile | 2 -
> arch/sparc/kernel/Makefile | 3 +-
> arch/x86/Makefile | 5 -
> arch/x86/boot/compressed/kaslr.c | 1 +
> arch/x86/boot/version.c | 1 +
> arch/x86/kernel/Makefile | 10 +-
> arch/xtensa/Makefile | 2 -
> arch/xtensa/kernel/Makefile | 4 +-
> init/Makefile | 55 ++++++---
> init/build-version | 10 ++
> init/version-timestamp.c | 31 +++++
> init/version.c | 37 +++---
> scripts/Makefile.build | 20 ++--
> scripts/Makefile.lib | 8 +-
> scripts/Makefile.modfinal | 2 +-
> scripts/Makefile.modpost | 112 ++++++++----------
> scripts/Makefile.vmlinux_o | 6 +-
> scripts/clang-tools/gen_compile_commands.py | 19 +---
> scripts/head-object-list.txt | 53 +++++++++
> scripts/link-vmlinux.sh | 51 ++-------
> scripts/mkcompile_h | 96 ++--------------
> 63 files changed, 393 insertions(+), 457 deletions(-)
> create mode 100755 init/build-version
> create mode 100644 init/version-timestamp.c
> create mode 100644 scripts/head-object-list.txt
>
> --
> 2.34.1
>
--
Best Regards
Masahiro Yamada
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