linux-kernel - Re: [PATCH 1/5] ARM: use unified assembler in macros

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]

Date:   Thu, 7 Feb 2019 10:52:53 -0500 (EST)
From:   Nicolas Pitre <nicolas.pitre@...aro.org>
To:     Stefan Agner <stefan@...er.ch>
cc:     Russell King - ARM Linux <linux@...linux.org.uk>,
        ndesaulniers@...gle.com, natechancellor@...il.com,
        Arnd Bergmann <arnd@...db.de>, ard.biesheuvel@...aro.org,
        thierry.reding@...il.com, Will Deacon <will.deacon@....com>,
        julien.thierry@....com, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/5] ARM: use unified assembler in macros

On Thu, 7 Feb 2019, Stefan Agner wrote:

> Use unified assembler syntax (UAL) in macros. Divided syntax is
> considered depricated. This will also allow to build the kernel
> using LLVM's integrated assembler.
> 
> Signed-off-by: Stefan Agner <stefan@...er.ch>
> ---
>  arch/arm/lib/copy_from_user.S | 2 +-
>  arch/arm/lib/copy_to_user.S   | 2 +-
>  arch/arm/lib/memcpy.S         | 4 ++--
>  3 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
> index 0d4c189c7f4f..712ca399f559 100644
> --- a/arch/arm/lib/copy_from_user.S
> +++ b/arch/arm/lib/copy_from_user.S
> @@ -91,7 +91,7 @@
>  	.endm
>  
>  	.macro str1b ptr reg cond=al abort
> -	str\cond\()b \reg, [\ptr], #1
> +	strb\cond\() \reg, [\ptr], #1

You don't need the \() any longer. This was used simply to separate the 
b suffix from the cond parameter name. 


Nicolas