From: Juergen Lock <qemu-l@jelal.kn-bremen.de>
To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] get_func() hangs with gcc 3.4.2 on MinGW and WinXP host
Date: Fri, 17 Dec 2004 19:56:27 +0100 [thread overview]
Message-ID: <20041217195627.A38776@saturn.kn-bremen.de> (raw)
In-Reply-To: <Pine.LNX.4.58.0412160049320.18774@wgmdd8.biozentrum.uni-wuerzburg.de>
On Thu, Dec 16, 2004 at 01:37:53AM +0000, Johannes Schindelin wrote:
> Hi,
>
> On Wed, 15 Dec 2004, Jim C. Brown wrote:
>
> > This is due to a change in the way gcc compiles code ... 3.4.0 may work,
> > but later versions will cause functions to return prematurely (due to the way
> > qemu handles translated blocks). I suggested that a fix for this would be to
> > use function pointer calls instead of directly chaining machine code, but
> > apparently this is too slow to make qemu usable.
>
> The Forth way ;-)
>...
How about instead post-processing the .s, replacing the rets with jumps
to the end of the function? Of course this part would be architecture
dependant (different assembler syntax), but other parts of qemu
are that as well, right?
Just a thought...
Juergen
next prev parent reply other threads:[~2004-12-17 18:56 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-15 13:47 [Qemu-devel] get_func() hangs with gcc 3.4.2 on MinGW and WinXP host tomba
2004-12-15 14:18 ` Johannes Schindelin
2004-12-15 14:59 ` tomba
2004-12-15 23:45 ` Jim C. Brown
2004-12-15 23:52 ` Johannes Schindelin
2004-12-17 18:56 ` Juergen Lock [this message]
2004-12-18 0:09 ` Johannes Schindelin
2004-12-18 4:04 ` Jim C. Brown
2004-12-18 14:59 ` Johannes Schindelin
2004-12-18 15:50 ` Jim C. Brown
2004-12-19 14:25 ` Johannes Schindelin
2004-12-19 22:57 ` Jim C. Brown
2004-12-18 21:07 ` John R. Hogerhuis
2004-12-18 21:59 ` Jim C. Brown
2004-12-19 14:45 ` Johannes Schindelin
2004-12-20 6:26 ` John R. Hogerhuis
2004-12-20 15:16 ` Removing GCC dependency, was " Johannes Schindelin
2004-12-20 18:02 ` John R. Hogerhuis
2004-12-20 23:30 ` Fabrice Bellard
2004-12-21 14:36 ` [Qemu-devel] Testing with Win2k SP3 and Win2kSP4 Elefterios Stamatogiannakis
2004-12-21 15:23 ` [Qemu-devel] Re: Removing GCC dependency Paul Brook
2004-12-21 15:36 ` Herbert Poetzl
2004-12-19 22:13 ` [Qemu-devel] get_func() hangs with gcc 3.4.2 on MinGW and WinXP host Fabrice Bellard
2004-12-19 22:29 ` Johannes Schindelin
2004-12-20 3:31 ` Rob Browning
2004-12-20 18:57 ` John R. Hogerhuis
2005-01-17 14:16 ` CMinusMins, was " Johannes Schindelin
2005-01-17 15:36 ` malc
2005-01-17 15:53 ` Jim C. Brown
2005-01-17 16:13 ` OCAML, was " Mark A. Williamson
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