[RFC PATCH v6 0/7] Speed booting by sorting ORC unwind tables at build time

From: Shile Zhang <shile.zhang@linux.alibaba.com>
To: Peter Zijlstra <peterz@infradead.org>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Andy Lutomirski <luto@amacapital.net>,
	x86@kernel.org
Cc: "H . Peter Anvin" <hpa@zytor.com>,
	linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org,
	Shile Zhang <shile.zhang@linux.alibaba.com>
Subject: [RFC PATCH v6 0/7] Speed booting by sorting ORC unwind tables at build time
Date: Wed,  4 Dec 2019 08:46:26 +0800	[thread overview]
Message-ID: <20191204004633.88660-1-shile.zhang@linux.alibaba.com> (raw)

Hi,

Sorry, update for compile error fix, reported by Intel's kbuild test robot.
Any comments or suggestions are welcome!

Thanks!

Changelog:
==========
v5->v6:
- fix compile error reported by kbuild test robot;

v4->v5:
- replace sort with qsort, suggested by Andy Lutomirski <luto@amacapital.net>;
- add error handling in link scripts;
- fixed some review findings;
https://lore.kernel.org/lkml/20191128110206.2107-1-shile.zhang@linux.alibaba.com/

v3->v4:
- Code refactored for Peter's review findings and suggestions.
https://lore.kernel.org/lkml/20191115164539.57930-1-shile.zhang@linux.alibaba.com/

v2->v3:
- Discard new added sortorctable tool and related Kconfig changes.
- Refactored sortextable, makes it more readable and extendable.
- Rename 'sortextable' to 'sorttable', for more kernel tables extend.
- Add ORC unwind tables sort into sorttable.
- Remove the runtime ORC tables sort.
https://lore.kernel.org/lkml/20191115064750.47888-1-shile.zhang@linux.alibaba.com/

v1->v2:
- Removed new added Kconfig and runtime sort code, advised by Josh Poimboeuf.
- Some minor refactoring.
https://lore.kernel.org/lkml/20191108071108.72132-1-shile.zhang@linux.alibaba.com/

v1:
- Added a new sortorctable tool to sort ORC unwind tables at build time,
  same as sortextable.
- Add a new Kconfigure to control if ORC unwind tables sort at build
  time.
https://lore.kernel.org/lkml/20191107143205.206606-1-shile.zhang@linux.alibaba.com/

Shile Zhang (7):
  scripts/sortextable: Rewrite error/success handling
  scripts/sortextable: kernel coding style formating
  scripts/sortextable: Remove dead code
  scripts/sortextable: refactor do_func() function
  scripts/sorttable: rename sortextable to sorttable
  scripts/sorttable: Add ORC unwind tables sort concurrently
  x86/unwind/orc: remove run-time ORC unwind tables sort

 arch/arc/Kconfig                       |   2 +-
 arch/arm/Kconfig                       |   2 +-
 arch/arm64/Kconfig                     |   2 +-
 arch/microblaze/Kconfig                |   2 +-
 arch/mips/Kconfig                      |   2 +-
 arch/parisc/Kconfig                    |   2 +-
 arch/powerpc/Kconfig                   |   2 +-
 arch/s390/Kconfig                      |   2 +-
 arch/x86/Kconfig                       |   2 +-
 arch/x86/kernel/unwind_orc.c           |   8 +-
 arch/xtensa/Kconfig                    |   2 +-
 init/Kconfig                           |   2 +-
 scripts/.gitignore                     |   2 +-
 scripts/Makefile                       |  13 +-
 scripts/link-vmlinux.sh                |  13 +-
 scripts/sortextable.h                  | 209 --------------
 scripts/{sortextable.c => sorttable.c} | 305 +++++++++-----------
 scripts/sorttable.h                    | 380 +++++++++++++++++++++++++
 18 files changed, 557 insertions(+), 395 deletions(-)
 delete mode 100644 scripts/sortextable.h
 rename scripts/{sortextable.c => sorttable.c} (67%)
 create mode 100644 scripts/sorttable.h

-- 
2.24.0.rc2