From: Mike Frysinger <vapier@gentoo.org>
Organization: wh0rd.org
To: "H.J. Lu" <hjl.tools@gmail.com>
Subject: Re: [RFC PATCH 00/10] Use __kernel_[u]long_t for x32 user space compatibility
Date: Thu, 17 May 2012 20:19:25 -0400
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Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
        torvalds@linux-foundation.org, hpa@zytor.com, mingo@kernel.org,
        tglx@linutronix.de
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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.

tangentially related, but what happened to the x86 asm/ptrace.h patch i sen=
t=20
that changed all the registers from unsigned long to u64 ?  e.g.
 struct pt_regs { =20
=2D	unsigned long r15;
+	__u64 r15;
=2Dmike

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