Re: [Qemu-devel] QEMU no longer debugable with recent gdb

[Jan Kiszka]

On 2013-02-25 15:22, Jan Kiszka wrote:
> On 2013-02-25 15:15, Stefan Hajnoczi wrote:
>> On Sun, Feb 24, 2013 at 02:03:51PM +0100, Jan Kiszka wrote:
>>> Hi,
>>>
>>> running qemu-system-xxx under recent gdb gives me this instead of
>>> starting QEMU:
>>>
>>> GNU gdb (GDB) 7.5.1
>>> Copyright (C) 2012 Free Software Foundation, Inc.
>>> License GPLv3+: GNU GPL version 3 or later 
>>> <http://gnu.org/licenses/gpl.html>
>>> This is free software: you are free to change and redistribute it.
>>> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>>> and "show warranty" for details.
>>> This GDB was configured as "x86_64-unknown-linux-gnu".
>>> For bug reporting instructions, please see:
>>> <http://www.gnu.org/software/gdb/bugs/>...
>>> Reading symbols from qemu-system-arm...done.
>>> (gdb) r
>>> Starting program: qemu-system-arm 
>>> Warning:
>>> Cannot insert breakpoint -1.
>>> Error accessing memory address 0x34e770: Input/output error.
>>>
>>>
>>> Commenting out the JIT debug information or using a much older gdb
>>> is currently the only option to debug QEMU here. It's affecting non-TCG
>>> operation, too. Any ideas?
>>
>> Works for me with GNU gdb (GDB) Fedora (7.5.1-32.fc18).
>>
>> http://sourceware.org/bugzilla/show_bug.cgi?id=14585
> 
> Hmm, maybe fedora has a patch or a different configuration (I'm using
> vanilla gdb).

Yeah, gdb head is fine in this regard (hope I didn't pull other issues).

Thanks,
Jan


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