linux-kernel - Re: Userspace compiler support of "long long"

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Message-ID: <Pine.LNX.4.64.0706280844030.22579@fbirervta.pbzchgretzou.qr>
Date:	Thu, 28 Jun 2007 08:50:03 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	Kyle Moffett <mrmacman_g4@....com>,
	Adrian Bunk <bunk@...sta.de>,
	LKML Kernel <linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>, david@...g.hm,
	linux-arch@...r.kernel.org
Subject: Re: Userspace compiler support of "long long"


On Jun 28 2007 04:12, Geert Uytterhoeven wrote:
>On Wed, 27 Jun 2007, Randy Dunlap wrote:
>> On Wed, 27 Jun 2007 15:57:15 -0700 Randy Dunlap wrote:
>> > LDD3 ch. 11 says that long on Sparc64 is 32 bits.
>> > Same for "ppc" (don't know which power* arch. they mean by that).
>> 
>> Hm, I suppose that table only applies to userspace, not kernel...
>
>32-bit userspace?
>
>On 64-bit, `long' is 64-bit on all platforms supported by Linux.

All types are as wide as the compiler makes them.

Compiler  short  int long llong
Turbo C      16   16   32     -
GCC -m32     16   32   32    64
GCC -m64     16   32   64    64



	Jan
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