linux-kernel - [PATCH 0/4] objtool: Reorganize x86 arch-specific code

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Message-ID: <20220531020744.236970-1-chenzhongjin@huawei.com>
Date:   Tue, 31 May 2022 10:07:40 +0800
From:   Chen Zhongjin <chenzhongjin@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-arch@...r.kernel.org>,
        <x86@...nel.org>
CC:     <jpoimboe@...hat.com>, <peterz@...radead.org>,
        <madvenka@...ux.microsoft.com>, <tglx@...utronix.de>,
        <mingo@...hat.com>, <bp@...en8.de>, <hpa@...or.com>,
        <arnd@...db.de>, <akpm@...ux-foundation.org>,
        <andreyknvl@...il.com>, <wangkefeng.wang@...wei.com>,
        <andrealmeid@...labora.com>, <mhiramat@...nel.org>,
        <mcgrof@...nel.org>, <christophe.leroy@...roup.eu>,
        <dmitry.torokhov@...il.com>, <yangtiezhu@...ngson.cn>,
        <dave.hansen@...ux.intel.com>
Subject: [PATCH 0/4] objtool: Reorganize x86 arch-specific code 

This patch set reorganize current x86 related code in objtool, [1-3] move
arch-specific to arch files and extract some common codes and [4] fixes
a cross-compile problem.

It make objtool more arch-generic, which makes other patches on different
architectures easier to be reviewed and merged.

Tested on x86 with unwind on kernel and module context.

Rebased to:
tip/objtool/core:22682a07acc3 (objtool: Fix objtool regression on x32 systems)

Chen Zhongjin (2):
  objtool: Add generic symbol for relocation type
  objtool: Specify host-arch for making LIBSUBCMD

Madhavan T. Venkataraman (2):
  objtool: Make ORC type code arch-specific
  objtool: Make ORC init and lookup code arch-generic

 arch/x86/include/asm/unwind.h                 |   5 -
 arch/x86/kernel/module.c                      |   7 +-
 arch/x86/kernel/unwind_orc.c                  | 256 +----------------
 arch/x86/kernel/vmlinux.lds.S                 |   2 +-
 .../asm => include/asm-generic}/orc_lookup.h  |  42 +++
 kernel/Makefile                               |   2 +
 kernel/orc_lookup.c                           | 261 ++++++++++++++++++
 tools/objtool/Makefile                        |   2 +-
 tools/objtool/arch/x86/Build                  |   1 +
 tools/objtool/arch/x86/include/arch/elf.h     |   5 +-
 tools/objtool/arch/x86/orc.c                  | 137 +++++++++
 tools/objtool/arch/x86/special.c              |   5 +-
 tools/objtool/check.c                         |  12 +-
 tools/objtool/include/objtool/orc.h           |  17 ++
 tools/objtool/orc_dump.c                      |  59 +---
 tools/objtool/orc_gen.c                       |  79 +-----
 16 files changed, 491 insertions(+), 401 deletions(-)
 rename {arch/x86/include/asm => include/asm-generic}/orc_lookup.h (51%)
 create mode 100644 kernel/orc_lookup.c
 create mode 100644 tools/objtool/arch/x86/orc.c
 create mode 100644 tools/objtool/include/objtool/orc.h

-- 
2.17.1