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From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Sami Tolvanen <samitolvanen@google.com>,
	linux-kernel@vger.kernel.org,
	Masahiro Yamada <masahiroy@kernel.org>,
	Michal Marek <michal.lkml@markovi.net>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	clang-built-linux@googlegroups.com
Subject: [PATCH 00/13] kbuild: refactoring after Clang LTO
Date: Thu, 19 Aug 2021 09:57:31 +0900	[thread overview]
Message-ID: <20210819005744.644908-1-masahiroy@kernel.org> (raw)


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

 scripts/Makefile.build                      | 196 ++++++++------------
 scripts/Makefile.lib                        |  28 +--
 scripts/Makefile.modfinal                   |   4 +-
 scripts/Makefile.modpost                    |   7 +-
 scripts/clang-tools/gen_compile_commands.py |   2 +-
 scripts/link-vmlinux.sh                     | 125 +++++++------
 scripts/mod/modpost.c                       |   6 +-
 scripts/mod/sumversion.c                    |   6 +-
 8 files changed, 164 insertions(+), 210 deletions(-)

-- 
2.30.2


             reply	other threads:[~2021-08-19  0:58 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-19  0:57 Masahiro Yamada [this message]
2021-08-19  0:57 ` [PATCH 01/13] kbuild: move objtool_args back to scripts/Makefile.build Masahiro Yamada
2021-08-19  2:45   ` Kees Cook
2021-08-19  0:57 ` [PATCH 02/13] gen_compile_commands: extract compiler command from a series of commands Masahiro Yamada
2021-08-19  6:48   ` Kees Cook
2021-08-19  0:57 ` [PATCH 03/13] kbuild: detect objtool changes correctly and remove .SECONDEXPANSION Masahiro Yamada
2021-08-19  2:55   ` Kees Cook
2021-08-19  3:18     ` Masahiro Yamada
2021-08-19  0:57 ` [PATCH 04/13] kbuild: remove unused quiet_cmd_update_lto_symversions Masahiro Yamada
2021-08-19  6:19   ` Kees Cook
2021-08-19  0:57 ` [PATCH 05/13] kbuild: remove stale *.symversions Masahiro Yamada
2021-08-19  6:29   ` Kees Cook
2021-08-19  0:57 ` [PATCH 06/13] kbuild: merge vmlinux_link() between the ordinary link and Clang LTO Masahiro Yamada
2021-08-19  2:42   ` Kees Cook
2021-08-19  0:57 ` [PATCH 07/13] kbuild: do not remove 'linux' link in scripts/link-vmlinux.sh Masahiro Yamada
2021-08-19  6:32   ` Kees Cook
2021-08-19  0:57 ` [PATCH 08/13] kbuild: merge vmlinux_link() between ARCH=um and other architectures Masahiro Yamada
2021-08-19  2:43   ` Kees Cook
2021-08-19  0:57 ` [PATCH 09/13] kbuild: do not create built-in.a.symversions or lib.a.symversions Masahiro Yamada
2021-08-19  6:41   ` Kees Cook
2021-08-28 11:57     ` Masahiro Yamada
2021-08-19  0:57 ` [PATCH 10/13] kbuild: build modules in the same way with/without Clang LTO Masahiro Yamada
2021-08-19  6:59   ` Kees Cook
2021-08-19  8:11     ` Masahiro Yamada
2021-08-19  0:57 ` [PATCH 11/13] kbuild: always postpone CRC links for module versioning Masahiro Yamada
2021-08-19  6:43   ` Kees Cook
2021-08-19  0:57 ` [PATCH 12/13] kbuild: merge cmd_modversions_c and cmd_modversions_S Masahiro Yamada
2021-08-19  3:06   ` Kees Cook
2021-08-19  0:57 ` [PATCH 13/13] kbuild: merge cmd_ar_builtin and cmd_ar_module Masahiro Yamada
2021-08-19  3:01   ` Kees Cook
2021-08-25  4:57 ` [PATCH 00/13] kbuild: refactoring after Clang LTO Masahiro Yamada

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