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From: Russell King <rmk+lkml@arm.linux.org.uk>
To: "Michael K. Edwards" <medwards.linux@gmail.com>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>,
	linux-arm-toolchain@lists.arm.linux.org.uk,
	linux-arm-kernel@lists.arm.linux.org.uk, crossgcc@sourceware.org
Subject: Re: More ARM binutils fuckage
Date: Wed, 6 Dec 2006 00:22:26 +0000	[thread overview]
Message-ID: <20061206002226.GK24038@flint.arm.linux.org.uk> (raw)
In-Reply-To: <f2b55d220612051529t3c0dcda8ma920c13b00899b10@mail.gmail.com>

On Tue, Dec 05, 2006 at 03:29:22PM -0800, Michael K. Edwards wrote:
> On 12/5/06, Russell King <rmk+lkml@arm.linux.org.uk> wrote:
> >There's not much to say about this, other than scream and go hide in the
> >corner.  ARM toolchains are just basically fscked.
> 
> And while we're on the topic of ARM linux toolchain fsckage, it would
> be nice to know what patches and incantations are currently
> recommended when configuring gcc for building various modern ARM
> kernel/ABI configurations (OABI + soft VFP, EABI, etc.).

There is no such thing as soft VFP.

I can only talk from the requirements of the kernel.  gcc 3.4.3 is
the minimum for ARM, which with binutils 2.17 will allow you to build
the kernel as OABI in *any* configuration.  No patches required for
either.

Enabling EABI needs a compiler which supports EABI.  That's where I
get fuzzy but recent gcc 4 should be suitable.  I have had it suggested
to me that EABI support in the toolchain isn't all that stable at the
moment.

As for userspace... and NPTL, that's a different matter.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:

  reply	other threads:[~2006-12-06  0:22 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-05 19:33 Russell King
2006-12-05 23:29 ` Michael K. Edwards
2006-12-06  0:22   ` Russell King [this message]
2006-12-06  1:08     ` Lennert Buytenhek
2006-12-06  6:43       ` Re[2]: " Paul Sokolovsky
2006-12-06  8:17         ` Koen Kooi
2006-12-06 14:37         ` Re[2]: " Bruce Ashfield
2006-12-06  1:34     ` Michael K. Edwards
2006-12-06  0:25 ` Russell King

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