linux-kernel - Re: [PATCH 5/5] ARM64: Add support for ILP32 ABI.

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Message-ID: <20130913100453.GB21859@mudshark.cambridge.arm.com>
Date:	Fri, 13 Sep 2013 11:04:53 +0100
From:	Will Deacon <will.deacon@....com>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	Andrew Pinski <pinskia@...il.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Pinski <apinski@...ium.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 5/5] ARM64: Add support for ILP32 ABI.

On Fri, Sep 13, 2013 at 10:57:40AM +0100, Catalin Marinas wrote:
> On Fri, Sep 13, 2013 at 10:47:12AM +0100, Will Deacon wrote:
> > On Fri, Sep 13, 2013 at 07:18:48AM +0100, Andrew Pinski wrote:
> > > On Wed, Sep 11, 2013 at 7:32 AM, Catalin Marinas
> > > <catalin.marinas@....com> wrote:
> > > > On Mon, Sep 09, 2013 at 10:32:59PM +0100, Andrew Pinski wrote:
> > > >> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> > > >> index cc64df5..7fdc994 100644
> > > >> --- a/arch/arm64/Kconfig
> > > >> +++ b/arch/arm64/Kconfig
> > > >> @@ -248,7 +248,7 @@ source "fs/Kconfig.binfmt"
> > > >>
> > > >>  config COMPAT
> > > >>         def_bool y
> > > >> -       depends on ARM64_AARCH32
> > > >> +       depends on ARM64_AARCH32 || ARM64_ILP32
> > > >>         select COMPAT_BINFMT_ELF
> > > >>
> > > >>  config ARM64_AARCH32
> > 
> > (nitpick) We used to have an option like this, called
> > CONFIG_AARCH32_EMULATION, which I think is clearer than CONFIG_ARM64_AARCH32.
> 
> I think avoiding "EMULATION" is better, we don't actually emulate the
> instruction set ;).

Bah, you suggest something better then!

Will
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