linux-kernel - Re: the Linux kernel, testsuites, and maybe *you*

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Message-ID: <8bd0f97a0709051051y1c0328ffx24068da775f8bad2@mail.gmail.com>
Date:	Wed, 5 Sep 2007 13:51:10 -0400
From:	"Mike Frysinger" <vapier.adi@...il.com>
To:	"Andi Kleen" <andi@...stfloor.org>
Cc:	"Linux Kernel" <linux-kernel@...r.kernel.org>
Subject: Re: the Linux kernel, testsuites, and maybe *you*

On 9/4/07, Mike Frysinger <vapier.adi@...il.com> wrote:
> On 9/2/07, Andi Kleen <andi@...stfloor.org> wrote:
> > On Sun, Sep 02, 2007 at 11:15:23AM -0400, Mike Frysinger wrote:
> > > there is still the ABI issue ... code written in kernel space in pure
> > > asm cannot always be compiled in userspace and work properly/the same
> >
> > Is that a blackfin weirdness?
>
> yes, Blackfin is weird in this respect due to being a no-mmu and
> wanting ELF, but i was being sufficiently general to bolster my claims
> and to leave the door open for any other port out there i'm not
> familiar with and any port that comes along

actually, there was another case i was thinking of ... it isnt
uncommon for architectures to use compiler flags which affect the ABI
and thus make userland not a 1-to-1 test example for the kernel ...
consider the regparam stuff we use on i386
-mike
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