| Re: [hatari-devel] Disassembler crashes if not in supervisor mode |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Disassembler crashes if not in supervisor mode
- From: Andreas Grabher <andreas_g86@xxxxxxxxxx>
- Date: Thu, 22 Dec 2022 18:56:41 +0100
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> Am 22.12.2022 um 00:03 schrieb Eero Tamminen <oak@xxxxxxxxxxxxxx>:
>
> Hi,
>
> On 21.12.2022 19.47, Andreas Grabher wrote:
>>> Am 21.12.2022 um 09:51 schrieb Eero Tamminen <oak@xxxxxxxxxxxxxx>:
>>> On 11.12.2022 17.45, Andreas Grabher wrote:
>>>> I added back some of the disassembler functions to Previous. It seems that the disassembler crashes the whole application with strange error (error report fails). I think it might be related to bus error and try/catch (using longjumps in C).
>>>> The problem seems to only occur if the CPU is in user mode. I am using 68030 with MMU (run_mmu030()). Is this a known issue?
>>>
>>> No. Never heard of such issue. Maybe it's Previous specific?
>>>
>> Maybe. It might only happen with functions that use try/catch. Previous uses 68030 and 68040, both with MMU.
>>>
>>>> Failing call is in DebugInfo_Default() -> Disasm().
> >>
>>> Do you have a backtrace?
>>>
>> The debugger seems to not show where exactly the crash happens. It is somewhere in Disasm() and its subroutines.
>
> If you cannot run the same program on Hatari, you could just write suitable block of memory to a file from Previous and load it in Hatari debugger, then try to run / disassemble it in Hatari, to see whether that crashes too.
>
That is a bit beyond my debugging skills. Did you ever run the debugger in Hatari while address translation (MMU) is enabled and in effect?
>
>>>> Calling the disassembler with the disasm command also crashes the application.
>
>
> - Eero
>
>