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
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