From mboxrd@z Thu Jan 1 00:00:00 1970 From: Francois-Xavier Kowalski Date: Wed, 23 Jan 2002 11:27:37 +0000 Subject: Re: [Linux-ia64] native ia64 32-bits compile & run on linux-ia64? MIME-Version: 1 Content-Type: multipart/mixed; boundary="------------030804080000060806090200" Message-Id: List-Id: References: In-Reply-To: To: linux-ia64@vger.kernel.org --------------030804080000060806090200 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Jes Sorensen wrote: >>>>>>"David" == David Mosberger writes: >>>>>> > >David> I think one point that hasn't been made so far is that we >David> actively discourage supporting an ILP32 data model for IA-64 >David> Linux to avoid splitting ia64 linux into two different worlds >David> (32-bit and 64-bit world). If we supported ILP32, it's very >David> likely that some ISVs will decide to provide *only* 32-bit >David> libraries, which could in turn force other ISVs to stay with >David> 32-bit just because they couldn't get the pre-requisite 64-bit >David> libraries. My understanding is that IRIX suffered from this >David> effect. > >Very good point, and even if we went down that road one could argue we >should only go for IP32 with long's being 64 bit. > I see the drawback... :-D But maybe Linux provides enough open-source alternatives to existing ISV libraries to limit the number of ISV's impacted by this kind of forced limitation...? BTW, do you know what is the choice on Linux/ppc64 vs. the previous Linux/ppc implementation on the same topic(data-model sizes)? >Just say no ;) > FiX -- Francois-Xavier "FiX" KOWALSKI /_ __ Tel:+33 (0)4 76 14 63 27 Telecom Infrastructure Division / //_/ Telnet: 779-6327 SigTech eXpert / http://www.hp.com/go/opencall i n v e n t --------------030804080000060806090200 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Jes Sorensen wrote:
"David" == David Mosberger <davidm@hpl.hp.com> writes:

David> I think one point that hasn't been made so far is that we
David> actively discourage supporting an ILP32 data model for IA-64
David> Linux to avoid splitting ia64 linux into two different worlds
David> (32-bit and 64-bit world).  If we supported ILP32, it's very
David> likely that some ISVs will decide to provide *only* 32-bit
David> libraries, which could in turn force other ISVs to stay with
David> 32-bit just because they couldn't get the pre-requisite 64-bit
David> libraries.  My understanding is that IRIX suffered from this
David> effect.

Very good point, and even if we went down that road one could argue we
should only go for IP32 with long's being 64 bit.

I see the drawback...  :-D  But maybe Linux provides enough open-source alternatives to existing ISV libraries to limit the number of ISV's impacted by this kind of forced limitation...?

BTW, do you know what is the choice on Linux/ppc64 vs. the previous Linux/ppc implementation on the same topic(data-model sizes)?

Just say no ;)

FiX
-- 
Francois-Xavier "FiX" KOWALSKI     /_ __    Tel:+33 (0)4 76 14 63 27
Telecom Infrastructure Division   / //_/    Telnet: 779-6327
SigTech eXpert                      /       http://www.hp.com/go/opencall
                               i n v e n t

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