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

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Message-Id: <20191204004633.88660-1-shile.zhang@linux.alibaba.com>
Date:   Wed,  4 Dec 2019 08:46:26 +0800
From:   Shile Zhang <shile.zhang@...ux.alibaba.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Andy Lutomirski <luto@...capital.net>, x86@...nel.org
Cc:     "H . Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        linux-kbuild@...r.kernel.org,
        Shile Zhang <shile.zhang@...ux.alibaba.com>
Subject: [RFC PATCH v6 0/7] Speed booting by sorting ORC unwind tables at build time

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@...capital.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