linux-kernel - Re: [PATCH v3 0/8] objtool: warning improvements

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Date:   Wed, 19 Apr 2023 16:51:48 +0200 (CEST)
From:   Miroslav Benes <mbenes@...e.cz>
To:     Josh Poimboeuf <jpoimboe@...nel.org>
cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: [PATCH v3 0/8] objtool: warning improvements

On Tue, 18 Apr 2023, Josh Poimboeuf wrote:

> v3:
> - dropped merged patches and rebased on tip/objtool/core
> - moved list of noreturn functions to separate file
> - improved WARN_INSN() to do single evaluation of insn arg
> 
> Josh Poimboeuf (8):
>   objtool: Limit unreachable warnings to once per function
>   objtool: Add verbose option for disassembling affected functions
>   objtool: Include backtrace in verbose mode
>   objtool: Detect missing __noreturn annotations
>   objtool: Ignore exc_double_fault() __noreturn warnings
>   objtool: Remove superfluous global_noreturns entries
>   tools/lib/subcmd: Replace NORETURN usage with __noreturn
>   objtool: Move noreturn function list to separate file
> 
>  tools/lib/subcmd/parse-options.h        |   8 +-
>  tools/lib/subcmd/subcmd-util.h          |   5 +-
>  tools/objtool/Documentation/objtool.txt |  10 ++
>  tools/objtool/builtin-check.c           |   5 +
>  tools/objtool/check.c                   | 195 ++++++++++++++++--------
>  tools/objtool/include/objtool/builtin.h |   1 +
>  tools/objtool/include/objtool/elf.h     |   1 +
>  tools/objtool/include/objtool/warn.h    |  21 ++-
>  tools/objtool/noreturns.h               |  45 ++++++
>  9 files changed, 214 insertions(+), 77 deletions(-)
>  create mode 100644 tools/objtool/noreturns.h

Reviewed-by: Miroslav Benes <mbenes@...e.cz>

M