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Re: [Qemu-devel] Re: Debugging with paging enabled
From: |
Daniel Jacobowitz |
Subject: |
Re: [Qemu-devel] Re: Debugging with paging enabled |
Date: |
Wed, 8 Nov 2006 18:42:26 -0500 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
On Thu, Nov 09, 2006 at 12:33:05AM +0100, Marcel Kilgus wrote:
> Leaving that aside, if I do set the breakpoint correctly at virtual
> address (e.g.) 0xC0123456 qemu will (correctly I guess) cause an
> exception for code offset 0x123456 (as CS base is 0xC0000000). GDB
> however then doesn't recognize its own breakpoint as it only remembers
> having set one at 0xC0123456, and apparently doesn't translate the
> given exception address of CS:0x123456 back to a virtual one.
Which segment is it running from at this point? Qemu may be reporting
the wrong address.
> So all in all GDB just doesn't seem to cope very well with segmented
> memory.
Correct. It doesn't know anything at all about i386 segmentation.
--
Daniel Jacobowitz
CodeSourcery
- [Qemu-devel] Debugging with paging enabled, Marcel Kilgus, 2006/11/07
- [Qemu-devel] Re: Debugging with paging enabled, Marcel Kilgus, 2006/11/08
- Re: [Qemu-devel] Re: Debugging with paging enabled, Fabrice Bellard, 2006/11/08
- [Qemu-devel] Re: Debugging with paging enabled, Marcel Kilgus, 2006/11/08
- Re: [Qemu-devel] Re: Debugging with paging enabled,
Daniel Jacobowitz <=
- [Qemu-devel] Re: Debugging with paging enabled, Marcel Kilgus, 2006/11/08
- Re: [Qemu-devel] Re: Debugging with paging enabled, Daniel Jacobowitz, 2006/11/08
- Re: [Qemu-devel] Re: Debugging with paging enabled, andrzej zaborowski, 2006/11/10
- [Qemu-devel] Re: Debugging with paging enabled, Marcel Kilgus, 2006/11/10
- Re: [Qemu-devel] Re: Debugging with paging enabled, Paul Brook, 2006/11/10
- [Qemu-devel] Re: Debugging with paging enabled, Marcel Kilgus, 2006/11/10
- Re: [Qemu-devel] Re: Debugging with paging enabled, Daniel Jacobowitz, 2006/11/10
- [Qemu-devel] Re: Debugging with paging enabled, Marcel Kilgus, 2006/11/10
- Re: [Qemu-devel] Re: Debugging with paging enabled, Daniel Jacobowitz, 2006/11/10