From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Christoph Hellwig <hch@lst.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jessica Yu <jeyu@kernel.org>, Nicolas Pitre <nico@fluxnic.net>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Masahiro Yamada <masahiroy@kernel.org>
Subject: [PATCH v2 0/4] kbuild: build speed improvement of CONFIG_TRIM_UNUSED_KSYMS
Date: Wed, 10 Mar 2021 00:17:33 +0900 [thread overview]
Message-ID: <20210309151737.345722-1-masahiroy@kernel.org> (raw)
Now CONFIG_TRIM_UNUSED_KSYMS is revived, but Linus is still unhappy
about the build speed.
I re-implemented this feature, and the build time cost is now
almost unnoticeable level.
(no changes since v1)
Masahiro Yamada (4):
export.h: make __ksymtab_strings per-symbol section
kbuild: separate out vmlinux.lds generation
kbuild: re-implement CONFIG_TRIM_UNUSED_KSYMS to make it work in
one-pass
kbuild: remove guarding from TRIM_UNUSED_KSYMS
Makefile | 34 ++++-----
arch/alpha/kernel/Makefile | 3 +-
arch/arc/kernel/Makefile | 3 +-
arch/arm/kernel/Makefile | 3 +-
arch/arm64/kernel/Makefile | 3 +-
arch/arm64/kvm/hyp/nvhe/hyp.lds.S | 1 +
arch/csky/kernel/Makefile | 3 +-
arch/h8300/kernel/Makefile | 2 +-
arch/hexagon/kernel/Makefile | 3 +-
arch/ia64/kernel/Makefile | 3 +-
arch/m68k/kernel/Makefile | 2 +-
arch/microblaze/kernel/Makefile | 3 +-
arch/mips/kernel/Makefile | 3 +-
arch/nds32/kernel/Makefile | 3 +-
arch/nios2/kernel/Makefile | 2 +-
arch/openrisc/kernel/Makefile | 3 +-
arch/parisc/kernel/Makefile | 3 +-
arch/powerpc/kernel/Makefile | 2 +-
arch/powerpc/kernel/vdso32/vdso32.lds.S | 1 +
arch/powerpc/kernel/vdso64/vdso64.lds.S | 1 +
arch/riscv/kernel/Makefile | 2 +-
arch/s390/kernel/Makefile | 3 +-
arch/s390/purgatory/purgatory.lds.S | 1 +
arch/sh/kernel/Makefile | 3 +-
arch/sparc/kernel/Makefile | 2 +-
arch/um/kernel/Makefile | 2 +-
arch/x86/kernel/Makefile | 2 +-
arch/xtensa/kernel/Makefile | 3 +-
include/asm-generic/export.h | 25 +------
include/asm-generic/vmlinux.lds.h | 13 ++--
include/linux/export.h | 56 ++++----------
include/linux/ksyms.lds.h | 22 ++++++
init/Kconfig | 3 +-
scripts/Makefile.build | 7 +-
scripts/Makefile.lib | 1 +
scripts/adjust_autoksyms.sh | 73 -------------------
.../{gen_autoksyms.sh => gen-keep-ksyms.sh} | 43 ++++++++---
scripts/gen_ksymdeps.sh | 25 -------
scripts/module.lds.S | 23 +++---
39 files changed, 152 insertions(+), 238 deletions(-)
create mode 100644 include/linux/ksyms.lds.h
delete mode 100755 scripts/adjust_autoksyms.sh
rename scripts/{gen_autoksyms.sh => gen-keep-ksyms.sh} (66%)
delete mode 100755 scripts/gen_ksymdeps.sh
--
2.27.0
next reply other threads:[~2021-03-09 15:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-09 15:17 Masahiro Yamada [this message]
2021-03-09 15:17 ` [PATCH v2 1/4] export.h: make __ksymtab_strings per-symbol section Masahiro Yamada
2021-03-09 15:17 ` [PATCH v2 2/4] kbuild: separate out vmlinux.lds generation Masahiro Yamada
2021-03-09 15:17 ` [PATCH v2 3/4] kbuild: re-implement CONFIG_TRIM_UNUSED_KSYMS to make it work in one-pass Masahiro Yamada
2021-03-09 17:36 ` Nicolas Pitre
2021-03-09 18:11 ` Masahiro Yamada
2021-03-09 19:54 ` Nicolas Pitre
2021-03-09 20:11 ` Rasmus Villemoes
2021-03-09 20:45 ` Nicolas Pitre
2021-03-17 15:48 ` kernel test robot
2021-03-09 15:17 ` [PATCH v2 4/4] kbuild: remove guarding from TRIM_UNUSED_KSYMS Masahiro Yamada
2021-03-09 19:54 ` Linus Torvalds
2021-03-10 12:55 ` kernel test robot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210309151737.345722-1-masahiroy@kernel.org \
--to=masahiroy@kernel.org \
--cc=hch@lst.de \
--cc=jeyu@kernel.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nico@fluxnic.net \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).