linux-kernel - Re: [PATCH 0/2] objtool: Fix code reloc vs weak symbols

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Message-ID: <20220421154818.7dsu24gwm2f5a6vl@treble>
Date:   Thu, 21 Apr 2022 08:48:18 -0700
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org, mbenes@...e.cz
Subject: Re: [PATCH 0/2] objtool: Fix code reloc vs weak symbols

On Tue, Apr 19, 2022 at 10:32:54PM +0200, Peter Zijlstra wrote:
> Two fun bugs that make can cause other fun fail if you have a fresh enough
> toolchain that strips unused section symbols.
> 
> The symptoms can vary between a faulty unwind to a kernel splat for trying to
> patch the wrong text.
> 
> I found it while playing with text patching and Josh confirmed it very much
> affects ORC data too.

Seems to work ok with testing.

With the XXX comment removed or fixed:

Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>

-- 
Josh