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From: Nicholas Piggin <npiggin@gmail.com>
To: linux-kbuild@vger.kernel.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
	linux-arch@vger.kernel.org, Michal Marek <mmarek@suse.com>,
	Sam Ravnborg <sam@ravnborg.org>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Arnd Bergmann <arnd@arndb.de>, Nicolas Pitre <nico@linaro.org>,
	Segher Boessenkool <segher@kernel.crashing.org>,
	Alan Modra <amodra@gmail.com>
Subject: [PATCH 0/6 v2] kbuild changes, thin archives, --gc-sections
Date: Thu, 11 Aug 2016 20:16:14 +1000	[thread overview]
Message-ID: <1470910580-18458-1-git-send-email-npiggin@gmail.com> (raw)

Hi,

I would like to submit the kbuild changes in patches 1-3 for
consideration.

I've taken on the feedback, so thanks everybody for that. The
biggest change since last time is a more general way for
architectures to do a post-link pass in patch 3.

On the question of whether to enable thin archives unconditionally,
I prefer to have architectures enable them as they are tested. But
I would like to see everybody moved as soon as possible and the
incremental linking removed.

All patches should be basically noops without arch enablement,
so I include initial powerpc enablement in patches 4-6 for
reference, but I will submit those via powerpc maintainer if
the kbuild changes are merged.

Thanks,
Nick

Nicholas Piggin (4):
  kbuild: allow archs to select build for link dead code/data
    elimination
  kbuild: add arch specific post-link pass
  powerpc/64: use linker dce
  powerpc: use the new post-link pass to check relocations

Stephen Rothwell (2):
  kbuild: allow architectures to use thin archives instead of ld -r
  powerpc: switch to using thin archives

 Documentation/kbuild/makefiles.txt     | 10 +++++
 Makefile                               |  9 ++++
 arch/Kconfig                           | 26 ++++++++++++
 arch/powerpc/Kconfig                   |  1 +
 arch/powerpc/Makefile                  | 17 ++------
 arch/powerpc/Makefile.postlink         | 31 ++++++++++++++
 arch/powerpc/kernel/Makefile           |  3 ++
 arch/powerpc/kernel/vmlinux.lds.S      |  2 +-
 arch/powerpc/platforms/Kconfig.cputype |  2 +
 arch/x86/entry/vdso/Makefile           |  6 +--
 include/asm-generic/vmlinux.lds.h      | 52 ++++++++++++-----------
 include/linux/compiler.h               | 23 +++++++++++
 include/linux/export.h                 | 30 +++++++-------
 include/linux/init.h                   | 38 ++++++-----------
 init/Makefile                          |  2 +
 kernel/Makefile                        |  3 --
 scripts/Makefile.build                 | 25 +++++++++---
 scripts/Makefile.modpost               |  3 ++
 scripts/link-vmlinux.sh                | 75 +++++++++++++++++++++++++++++-----
 19 files changed, 258 insertions(+), 100 deletions(-)
 create mode 100644 arch/powerpc/Makefile.postlink

-- 
2.8.1


             reply	other threads:[~2016-08-11 10:16 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-11 10:16 Nicholas Piggin [this message]
2016-08-11 10:16 ` [PATCH 1/6] kbuild: allow architectures to use thin archives instead of ld -r Nicholas Piggin
2016-08-11 10:16 ` [PATCH 2/6] kbuild: allow archs to select link dead code/data elimination Nicholas Piggin
2016-08-11 10:16 ` [PATCH 3/6] kbuild: add arch specific post-link pass Nicholas Piggin
2016-08-16  9:23   ` Michal Marek
2016-08-17  4:43     ` Nicholas Piggin
2016-08-17  9:05       ` Michal Marek
2016-08-17  9:56       ` Sam Ravnborg
2016-08-18  0:17         ` Nicholas Piggin
2016-08-11 10:16 ` [PATCH 4/6] powerpc: switch to using thin archives Nicholas Piggin
2016-08-11 10:16 ` [PATCH 5/6] powerpc/64: use linker dead code elimination Nicholas Piggin
2016-08-11 10:16 ` [PATCH 6/6] powerpc: use the new post-link pass to check relocations Nicholas Piggin
2016-08-11 12:31 ` [PATCH 0/6 v2] kbuild changes, thin archives, --gc-sections Stephen Rothwell
2016-08-11 12:39 ` [PATCH] Xen: remove -fshort-wchar gcc flag Arnd Bergmann
2016-08-11 12:51   ` Jan Beulich
2016-08-11 12:51   ` [Xen-devel] " Jan Beulich
2016-08-11 14:01     ` Arnd Bergmann
2016-08-11 14:06       ` Jan Beulich
2016-08-11 14:06       ` Jan Beulich
2016-08-11 14:01     ` Arnd Bergmann
2016-08-24 17:18   ` [Xen-devel] " David Vrabel
2016-08-24 17:18   ` David Vrabel
2016-08-11 12:39 ` Arnd Bergmann
2016-08-11 13:55 ` [EXPERIMENTAL] enable thin archives and --gc-sections on ARM Arnd Bergmann
2016-08-11 20:01   ` Nicolas Pitre
2016-08-11 20:37     ` Arnd Bergmann
2016-08-11 21:05       ` Nicolas Pitre
2016-08-23  6:17 ` [PATCH 0/6 v2] kbuild changes, thin archives, --gc-sections Nicholas Piggin

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