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Re: [Xen-devel] [PATCH] [HVMLOADER] built-in memcmp function uses not-yet implemented opcode


  • To: Stefan Berger <stefanb@xxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Wed, 29 Nov 2006 07:51:50 +0000
  • Cc: keir@xxxxxxxxxxxxx
  • Delivery-date: Tue, 28 Nov 2006 23:57:10 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AccTizoheHe1Cn9+EduwVgANk04WTA==
  • Thread-topic: [Xen-devel] [PATCH] [HVMLOADER] built-in memcmp function uses not-yet implemented opcode

On 29/11/06 4:15 am, "Stefan Berger" <stefanb@xxxxxxxxxx> wrote:

>   it seems like the acpi/build.c function now uses the gcc built-in
> memcmp function. Unfortunately that one seems to generate some code that
> hits a not-yet implemented/emulated opcode. Instead of implementing
> emultaion for that opcode I just copied the previously used memcmp
> function from util.c into the build.c and renamed it to _memcmp to avoid
> linking problems.

There's an easier fix. hvmloader/acpi/Makefile is missing -fno-builtin. I'll
apply a patch.

 Thanks,
 Keir



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