From: Mike Frysinger <vapier@gentoo.org>
Organization: wh0rd.org
To: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [RFC PATCH 00/10] Use __kernel_[u]long_t for x32 user space compatibility
Date: Thu, 17 May 2012 20:38:46 -0400
User-Agent: KMail/1.13.7 (Linux/3.4.0-rc6; KDE/4.6.5; x86_64; ; )
Cc: "H.J. Lu" <hjl.tools@gmail.com>, linux-kernel@vger.kernel.org,
        linux-arch@vger.kernel.org, torvalds@linux-foundation.org,
        mingo@kernel.org, tglx@linutronix.de
References: <1337292816-10839-1-git-send-email-hjl.tools@gmail.com> <201205172019.27462.vapier@gentoo.org> <4FB5960E.6070205@zytor.com>
In-Reply-To: <4FB5960E.6070205@zytor.com>
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On Thursday 17 May 2012 20:21:34 H. Peter Anvin wrote:
> On 05/17/2012 05:19 PM, Mike Frysinger wrote:
> > On Thursday 17 May 2012 18:13:26 H.J. Lu wrote:
> >> From: H.J. Lu <hjl.tools@gmail.com>
> >>=20
> >> This patch set changes a number of places where the kernel
> >> headers are exported to user space and currently use explicit
> >> "long" or "unsigned long" to use __kernel_[u]long_t in order to
> >> be compatible with the x32 user space ABI.  These location are
> >> places where x32 uses the x86-64 ABI.
> >>=20
> >> It is quite possible that some, or even all, of these locations
> >> should really use dedicated types, but in the meantime this gives
> >> the correct results which the current headers do not.
> >=20
> > tangentially related, but what happened to the x86 asm/ptrace.h
> > patch i sent that changed all the registers from unsigned long to
> > u64 ?  e.g. struct pt_regs { -	unsigned long r15; +	__u64 r15;
>=20
> Link please?

https://groups.google.com/group/x32-abi/msg/b0b5be30d7aab1f8
=2Dmike

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