From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f65.google.com ([209.85.220.65]:34605 "EHLO mail-pa0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751516AbcHKKQj (ORCPT ); Thu, 11 Aug 2016 06:16:39 -0400 From: Nicholas Piggin Subject: [PATCH 0/6 v2] kbuild changes, thin archives, --gc-sections Date: Thu, 11 Aug 2016 20:16:14 +1000 Message-Id: <1470910580-18458-1-git-send-email-npiggin@gmail.com> Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: linux-kbuild@vger.kernel.org Cc: Nicholas Piggin , linux-arch@vger.kernel.org, Michal Marek , Sam Ravnborg , Stephen Rothwell , Arnd Bergmann , Nicolas Pitre , Segher Boessenkool , Alan Modra 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