linux-kernel - Re: [RFC PATCH 0/5] livepatch: add support on arm64

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Message-ID: <alpine.LNX.2.00.1505291350510.26271@pobox.suse.cz>
Date:	Fri, 29 May 2015 13:52:31 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Li Bin <huawei.libin@...wei.com>
cc:	rostedt@...dmis.org, mingo@...nel.org, jpoimboe@...hat.com,
	sjenning@...hat.com, vojtech@...e.cz, catalin.marinas@....com,
	will.deacon@....com, masami.hiramatsu.pt@...achi.com,
	live-patching@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	lizefan@...wei.com, felix.yang@...wei.com, guohanjun@...wei.com,
	xiexiuqi@...wei.com
Subject: Re: [RFC PATCH 0/5] livepatch: add support on arm64

On Thu, 28 May 2015, Li Bin wrote:

> This patchset propose a method for gcc -mfentry feature(profile
> before prologue) implementation for arm64, and propose the livepatch
> implementation for arm64 based on this feature.
> The gcc implementation about this feature will be post to the gcc 
> community soon.
> 
> With this -mfentry feature, the entry of each function like:
> 
> foo:
>     mov x9, x30 
>     bl __fentry__
>     mov x30, x9
>     [prologue]
>     ... 

Thanks a lot for working on arm64 support. I am putting this patchset on 
hold before gcc support is merged. Once that happens, and once the arm64 
parts are Acked by the arch maintainers, we could proceed with this patch.

-- 
Jiri Kosina
SUSE Labs
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