linux-kernel - Re: [tip: objtool/urgent] objtool: Fix seg fault with Clang non-section symbols

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Date:   Sat, 13 Feb 2021 09:13:04 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Xi Ruoyao <xry111@...gyan1223.wang>,
        "# 3.4.x" <stable@...r.kernel.org>,
        Arnd Bergmann <arnd@...nel.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Miroslav Benes <mbenes@...e.cz>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-tip-commits@...r.kernel.org
Subject: Re: [tip: objtool/urgent] objtool: Fix seg fault with Clang
 non-section symbols

On Sat, 13 Feb 2021 15:09:02 +0100
Greg Kroah-Hartman <gregkh@...uxfoundation.org> wrote:

> Thanks for the patch, but no, still fails with:
> 
> Cannot find symbol for section 8: .text.unlikely.
> kernel/kexec_file.o: failed
> make[1]: *** [scripts/Makefile.build:277: kernel/kexec_file.o] Error 1
> make[1]: *** Deleting file 'kernel/kexec_file.o'

It was just a guess.

I guess I'll need to find some time next week to set up a VM with
binutils 2.36 (I just checked, and all my development machines have
2.35). Then I'll be able to try and debug it.

-- Steve