[v3] Add jump table support for objtool on LoongArch

[PATCH v3 00/10] Add jump table support for objtool on LoongArch

Posted by Tiezhu Yang 4 days, 4 hours ago

This series is based on 6.12-rc7, tested with the latest upstream
mainline Binutils, GCC and Clang, most of the patches are aim to
handle the special cases compiled with Clang on LoongArch.

Tiezhu Yang (10):
  objtool: Handle various symbol types of rodata
  objtool: Handle special cases of dead end insn
  objtool: Handle different entry size of rodata
  objtool: Handle PC relative relocation type
  objtool: Handle unreachable entry of rodata
  objtool: Handle unsorted table offset of rodata
  objtool/LoongArch: Get each table size of rodata
  objtool/LoongArch: Add support for switch table
  objtool/LoongArch: Add support for goto table
  LoongArch: Enable jump table for objtool

 arch/loongarch/Kconfig                 |   3 +
 arch/loongarch/Makefile                |   4 +
 tools/objtool/arch/loongarch/special.c | 156 ++++++++++++++++++++++++-
 tools/objtool/check.c                  |  68 ++++++++++-
 tools/objtool/include/objtool/check.h  |   1 +
 5 files changed, 226 insertions(+), 6 deletions(-)

-- 
2.42.0

Re: [PATCH v3 00/10] Add jump table support for objtool on LoongArch

Posted by Huacai Chen 4 days, 3 hours ago

Hi, Jinyang,

If you have time please review this series, thank you.

Huacai

On Tue, Nov 19, 2024 at 2:57 PM Tiezhu Yang <yangtiezhu@loongson.cn> wrote:
>
> This series is based on 6.12-rc7, tested with the latest upstream
> mainline Binutils, GCC and Clang, most of the patches are aim to
> handle the special cases compiled with Clang on LoongArch.
>
> Tiezhu Yang (10):
>   objtool: Handle various symbol types of rodata
>   objtool: Handle special cases of dead end insn
>   objtool: Handle different entry size of rodata
>   objtool: Handle PC relative relocation type
>   objtool: Handle unreachable entry of rodata
>   objtool: Handle unsorted table offset of rodata
>   objtool/LoongArch: Get each table size of rodata
>   objtool/LoongArch: Add support for switch table
>   objtool/LoongArch: Add support for goto table
>   LoongArch: Enable jump table for objtool
>
>  arch/loongarch/Kconfig                 |   3 +
>  arch/loongarch/Makefile                |   4 +
>  tools/objtool/arch/loongarch/special.c | 156 ++++++++++++++++++++++++-
>  tools/objtool/check.c                  |  68 ++++++++++-
>  tools/objtool/include/objtool/check.h  |   1 +
>  5 files changed, 226 insertions(+), 6 deletions(-)
>
> --
> 2.42.0
>