Re: [PATCH 00/13] kbuild: refactoring after Clang LTO

Masahiro Yamada
2021-08-25T04:58:44Z

On Thu, Aug 19, 2021 at 9:58 AM Masahiro Yamada <masahiroy@kernel.org> wrote:
>
>
> The introduction of Clang LTO, the kbuild code became much
> uglier due to CONFIG_LTO_CLANG conditionals.
>
> It is painful to maintain the messed-up code, and to review
> code changed on top of that.
>
>
>
> Masahiro Yamada (13):
> kbuild: move objtool_args back to scripts/Makefile.build
> gen_compile_commands: extract compiler command from a series of
> commands
> kbuild: detect objtool changes correctly and remove .SECONDEXPANSION
> kbuild: remove unused quiet_cmd_update_lto_symversions
> kbuild: remove stale *.symversions
> kbuild: merge vmlinux_link() between the ordinary link and Clang LTO
> kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh
> kbuild: merge vmlinux_link() between ARCH=um and other architectures
> kbuild: do not create built-in.a.symversions or lib.a.symversions
> kbuild: build modules in the same way with/without Clang LTO
> kbuild: always postpone CRC links for module versioning
> kbuild: merge cmd_modversions_c and cmd_modversions_S
> kbuild: merge cmd_ar_builtin and cmd_ar_module
>

Patch 01-08 applied.

I will take some time for the rest.

--
Best Regards
Masahiro Yamada