linux-kernel - Re: [PATCH v2 0/5] ARM: convert to unified syntax

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

Message-ID: <nycvar.YSQ.7.76.1902101620430.2213@knanqh.ubzr>
Date:   Sun, 10 Feb 2019 16:24:45 -0500 (EST)
From:   Nicolas Pitre <nicolas.pitre@...aro.org>
To:     Stefan Agner <stefan@...er.ch>
cc:     linux@...linux.org.uk, ndesaulniers@...gle.com,
        natechancellor@...il.com, arnd@...db.de, ard.biesheuvel@...aro.org,
        thierry.reding@...il.com, will.deacon@....com,
        julien.thierry@....com, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 0/5] ARM: convert to unified syntax

On Sun, 10 Feb 2019, Stefan Agner wrote:

> This patchset converts all assembly code to unified assembler
> language (UAL) compatible assembly code. From what I can tell,
> this mainly boils down to using conditional infixes instead of
> postfixes.
> 
> Most of the conversion has been done using the following regular
> expression:
>   find ./arch/arm/ -name "*.[hSc]" -exec sed -i -r \
>     "s/^((\s*[._a-zA-Z0-9]*[\:\(])?\s*)([a-z]{3})(eq|ne|cs|hs|cc|lo|mi|pl|vs|vc|hi|ls|ge|lt|gt|le|al)([a-z]{1,2})(\s)/\1\3\5\4\6/"
> \
>     {} \;
> 
> The expression resulted in some false positives and missed some
> instances where infix conditionals have been used. With this
> changes applied, I compiled several kernel configurations
> successfully and without a warning.
> 
> The file arch/arm/probes/kprobes/test-arm.c is still using some
> divided syntax assembler.
> 
> This does not allow to use LLVM's integrated assembler just yet,
> there is still some assembler which the integrated assembler does
> not like (yet). But it is a big step towards that direction.

OK....

Please document why you added .syntax unified in the commit log of each 
patch where this is added along with a link to the gcc PR.  Then you may 
add Acked-by: Nicolas Pitre <nico@...aro.org> to the whole series.


Nicolas