linux-kernel - Re: vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call to __sanitizer_cov_trace

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Message-ID: <YTHw1YWYNgPK5KfF@zn.tnic>
Date:   Fri, 3 Sep 2021 11:54:29 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Borislav Petkov <bp@...e.de>, kernel test robot <lkp@...el.com>,
        kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        x86-ml <x86@...nel.org>
Subject: Re: vmlinux.o: warning: objtool: mce_wrmsrl.constprop.0()+0x6b: call
 to __sanitizer_cov_trace_pc() leaves .noinstr.text section

On Fri, Sep 03, 2021 at 11:23:36AM +0200, Peter Zijlstra wrote:
> So I was wondering why they'd show up in any case, since objtool is
> supposed to NOP them, but then I remembered I still have this patch
> pending:
> 
>   https://lore.kernel.org/r/20210624095147.818783799@infradead.org
> 
> Which I suspect will cure that for older GCC.

Yah, works with gcc-10 here too.

Tested-by: Borislav Petkov <bp@...e.de>

Thx.

-- 
Regards/Gruss,
    Boris.

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