linux-kernel - Re: scripts: Add ppc64le support for checkstack.pl

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <41Qfsw3GCDzB4MP@ozlabs.org>
Date:   Wed, 11 Jul 2018 23:24:04 +1000 (AEST)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Breno Leitao <leitao@...ian.org>, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Cc:     Breno Leitao <leitao@...ian.org>
Subject: Re: scripts: Add ppc64le support for checkstack.pl

On Tue, 2017-11-28 at 19:29:34 UTC, Breno Leitao wrote:
> 64-bit ELF v2 ABI specification for POWER describes, on section "General
> Stack Frame Requirements", that the stack should use the following
> instructions when compiled with backchain:
> 
>   mflr r0
>   std  r0, 16(r1)
>   stdu r1, -XX(r1)
> 
> Where XX is the frame size for that function, and this is the value
> checkstack.pl will find the stack size for each function.
> 
> This patch also simplifies the entire Powerpc section, since just two
> type of instructions are used, 'stdu' for 64 bits and 'stwu' for 32 bits
> platform.
> 
> Signed-off-by: Breno Leitao <leitao@...ian.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/8449a4cb69ab6fbb873d653a82787a

cheers