linux-kernel - Re: livepatch: reuse module loader code to write relocations

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Message-ID: <alpine.LNX.2.00.1603212256080.3656@cbobk.fhfr.pm>
Date:	Mon, 21 Mar 2016 23:02:44 +0100 (CET)
From:	Jiri Kosina <jikos@...nel.org>
To:	Josh Poimboeuf <jpoimboe@...hat.com>
cc:	Jessica Yu <jeyu@...hat.com>, Miroslav Benes <mbenes@...e.cz>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Petr Mladek <pmladek@...e.com>,
	Jonathan Corbet <corbet@....net>, linux-api@...r.kernel.org,
	live-patching@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
	linux-doc@...r.kernel.org
Subject: Re: livepatch: reuse module loader code to write relocations

On Mon, 21 Mar 2016, Josh Poimboeuf wrote:

> According to my test that still results in the literal value of
> "(64 - 8)".

Alright. But we should be able to special-case it with a two #if checks on 
the __SIZEOF_LONG__ value and BUILD_BUG_ON() when __SIZEOF_LONG__ is not 
of one of the ususal sizes.

Thanks,

-- 
Jiri Kosina
SUSE Labs