[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] m68k gdb has stopped single stepping correctly
From: |
Thomas Huth |
Subject: |
Re: [Qemu-devel] m68k gdb has stopped single stepping correctly |
Date: |
Wed, 20 Feb 2019 16:38:11 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 |
On 24/01/2019 14.38, Alex Bennée wrote:
>
> Lucien Anti-Spam via Qemu-devel <address@hidden> writes:
>
>> > On Thursday, January 24, 2019, 3:08:07 AM GMT+9, Emilio G. Cota
>> <address@hidden> wrote: > > On Wed, Jan 23, 2019 at 15:58:27 +0000, Lucien
>> Anti-Spam via Qemu-devel wrote:> > Hi folks,
>>>> I noticed that with 3.x release that the GDB options (-S -s) for certain
>>>> CPU results in very weird stepping.Usually stops afer a few steps, whilst
>>>> the stub continues responding the PC doesnt update, however, I have only
>>>> deeply looked at the m68k.
>>>> In the case of the m68K the SR gets the trace bit set (T=10b), and the PC
>>>> doesnt update.The m68k gdbstub, and main gdbstub seem mostly unchanged.But
>>>> it seems the INSN handling has changed greatly for the m68k.
>>>> Does anyone have any ideas what happened?>> Can you please bisect to find
>>>> at which point things start misbehaving?
>>>
>>> Thanks,
>>> Emilio
>> Understood, I was hoping my original post might jog someone's memory about
>> the issue.
>> Apparently not, so after some digging I found that it was introduced with
>> the refactor to TranslatorOps, specifically two lines got dropped that
>> update the PC if single-stepping is being performed ( commit
>> 11ab74b01e0a8ea4973eed89c6b90fa6e4fb9fb6 )
>> Since its not valid to revert, shall I go ahead and submit a patch for
>> these two lines?
>
> Yes please!
Hi Lucien,
did you ever sent the patch? I can't find it on the mailing list, and I
think this bug is still pending?
Thomas
- Re: [Qemu-devel] m68k gdb has stopped single stepping correctly,
Thomas Huth <=