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Subject: Re: svn commit: r450636 - in head/emulators/virtualbox-ose: . files
From: Jung-uk Kim <jkim@FreeBSD.org>
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Date: Mon, 25 Sep 2017 17:48:21 -0400
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On 09/25/2017 17:39, Jung-uk Kim wrote:
> Author: jkim
> Date: Mon Sep 25 21:39:29 2017
> New Revision: 450636
> URL: https://svnweb.freebsd.org/changeset/ports/450636
> 
> Log:
>   Build recompiler with Clang if global register variable is supported.
>   
>   Note support for global register variable was proposed in the following
>   upstream code reviews:
>   
>   https://reviews.llvm.org/D3261
>   https://reviews.llvm.org/D3797
>   
>   and commits:
>   
>   http://llvm.org/viewvc/llvm-project?view=revision&revision=208104
>   http://llvm.org/viewvc/llvm-project?view=revision&revision=209149
>   
>   However, it has very limited support as described in the following upstream
>   PR in the gory details:
>   
>   https://bugs.llvm.org/show_bug.cgi?id=31005
>   
>   Although it is incomplete, I *believe* Clang 3.5 and later has just enough
>   code to support (ancient) QEMU-based recompiler.  If you experience any VM
>   crash related to recompiler, e.g., "fatal error in recompiler cpu" in its
>   VBox.log, please let me know.
>   
>   FYI, QEMU was rewritten not to use this GCC-specific feature long time ago:
>   
>   http://lists.gnu.org/archive/html/qemu-devel/2011-05/msg00855.html
>   https://www.mail-archive.com/qemu-devel@nongnu.org/msg63834.html
...

I meant to add the following URL, not the mail-archive.com one.

http://lists.gnu.org/archive/html/qemu-devel/2011-05/msg01116.html

Jung-uk Kim