linux-kernel - Re: "relocation to !ENDBR" objtool warnings

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Message-Id: <e7c365d5-fefa-4af3-8c10-fd1c365cd2f5@app.fastmail.com>
Date: Wed, 18 Dec 2024 11:38:16 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Peter Zijlstra" <peterz@...radead.org>,
 "Josh Poimboeuf" <jpoimboe@...nel.org>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: "relocation to !ENDBR" objtool warnings

On Wed, Dec 18, 2024, at 11:08, Peter Zijlstra wrote:
> On Wed, Dec 18, 2024 at 12:47:29AM -0800, Josh Poimboeuf wrote:
>> On Tue, Dec 17, 2024 at 10:09:56AM +0100, Arnd Bergmann wrote:
>> > 
>> > No idea why it got inserted here, or why it only shows up in these
>> > two functions. Having a nop before the endbr is a compiler bug, right?
>> 
>> Yeah, looks like a bug to me.
>
> Did you find https://gcc.gnu.org/PR116174 again?

Yes, I see my problem now: it turns out that the fixed version
was installed, but I was using the release version in my
randconfig tests, not the one that had the patch.

        Arnd