linux-kernel - Re: [PATCH] Makefile: disable PIE before testing asm goto

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Message-ID: <CAK7LNAQB_J1WwaV-8a66KyCfG3bNqNwA9zb08Vph=zn73A-i9Q@mail.gmail.com>
Date:   Thu, 17 May 2018 22:34:12 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Michal Kubecek <mkubecek@...e.cz>
Cc:     Michal Marek <michal.lkml@...kovi.net>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Andreas Faerber <afaerber@...e.com>
Subject: Re: [PATCH] Makefile: disable PIE before testing asm goto

2018-05-16 14:51 GMT+09:00 Michal Kubecek <mkubecek@...e.cz>:
> Since commit e501ce957a78 ("x86: Force asm-goto"), aarch64 build on
> distributions which enable PIE by default (e.g. openSUSE Tumbleweed) does
> not detect support for asm goto correctly. The problem is that ARM specific
> part of scripts/gcc-goto.sh fails with PIE even with recent gcc versions.
> Moving the asm goto detection up in Makefile put it before the place where
> we disable PIE. As a result, kernel is built without jump label support.
>
> Move the lines disabling PIE before the asm goto test to make it work.
>
> Fixes: e501ce957a78 ("x86: Force asm-goto")
> Reported-by: Andreas Faerber <afaerber@...e.com>
> Signed-off-by: Michal Kubecek <mkubecek@...e.cz>
> ---

Applied to linux-kbuild/fixes.  Thanks!


-- 
Best Regards
Masahiro Yamada