linux-kernel - Re: RFD: x32 ABI system call numbers

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Message-ID: <4E5840FE.5090705@zytor.com>
Date:	Fri, 26 Aug 2011 17:57:34 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	LKML <linux-kernel@...r.kernel.org>,
	"H.J. Lu" <hjl.tools@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: RFD: x32 ABI system call numbers

On 08/26/2011 05:36 PM, Linus Torvalds wrote:
> If you want to be compatible with "int 0x80" and old libraries, then I
> really don't see why you would introduce *anything* new.

Just to be clear, the reason to keep the LFS stuff in there was to be
compatible with the existing 32-bit *programming model*, so that a
program recompiled from i386 to x32 should behave the same.

Not that anyone should compile without -D_FILE_OFFSET_BITS=64 these days...

	-hpa

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