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Re: [Qemu-devel] Re: [PATCH 4/4] gdbstub: x86: Switch 64/32 bit register

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] Re: [PATCH 4/4] gdbstub: x86: Switch 64/32 bit registers dynamically
Date: Tue, 30 Jun 2009 09:15:00 +0200
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On 06/29/09 16:43, Paul Brook wrote:
You've just deliberately broken the qemu gdbstub. After your patch it is
impossible to debug mixed 32/64-bit code.
Please give it a try as it's the other way around: You can't properly
debug mixed target code without my patch.

Sure you can, you just need a gdb that doesn't suck.  As soon as you encounter
actual mixed code (rather than just running the wrong qemu) your patch causes
things to die horribly.

i.e. the latest gdb release (6.8) works better *with* the workaround,
and the latest gdb bits from cvs work better *without* the workaround.
Is that correct?

How about making it runtime-switchable then, so qemu can deal with both cases?


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