linux-kernel - [PATCH v2 0/5] objtool: Reorganize x86 arch-specific code

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Date:   Wed, 22 Jun 2022 18:13:39 +0800
From:   Chen Zhongjin <chenzhongjin@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-arch@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>,
        <linux-arm-kernel@...ts.infradead.org>, <jpoimboe@...nel.org>,
        <peterz@...radead.org>
CC:     <tglx@...utronix.de>, <mingo@...hat.com>,
        <dave.hansen@...ux.intel.com>, <x86@...nel.org>, <hpa@...or.com>,
        <arnd@...db.de>
Subject: [PATCH v2 0/5] 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, [4] fixes a
cross-compile problem and [5] fixes a call destination search bug.

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.

---
v2 Change:
[5/5] objtool: use arch_jump_destination in read_intra_function_calls
---
Chen Zhongjin (3):
  objtool: Add generic symbol for relocation type
  objtool: Specify host-arch for making LIBSUBCMD
  objtool: use arch_jump_destination in read_intra_function_calls

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                         |  14 +-
 tools/objtool/include/objtool/orc.h           |  17 ++
 tools/objtool/orc_dump.c                      |  59 +---
 tools/objtool/orc_gen.c                       |  79 +-----
 16 files changed, 492 insertions(+), 402 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