[lldb-dev] JIT debugging and Windows

[Keno Fischer]

I've started looking into this and it's actually not that difficult to do
(the JIT part at least). I think the most difficult thing is
figuring out where to put the functionality. The way I see it, the JIT
interface is almost a DynamicLoader, with the difference
that asking it about things like whether or not loading a dynamic library
is safe doesn't make much sense. Another problem
is that currently there's a 1:1 relationship between Processes and
DynamicLoaders. Perhaps a new class of Plugins
(JITLoader?) could be added with a 1:n relationship to processes. Some of
the interface (I'm thinking
 DidLaunch,DidAttach,Get/SetStopWhenImagesChange) could be pulled out into
an abstract base class. Does that make
sense. I'd be happy to implement this once we decide on the design.

Keno


On Wed, Dec 25, 2013 at 10:30 AM, Andrew MacPherson
<andrew.macp at gmail.com>wrote:

> Looks great, thanks Keno. I'll look into this next week and keep you
> posted.
>
> Cheers,
> Andrew
>
>
> On Tue, Dec 24, 2013 at 1:19 PM, Keno Fischer <
> kfischer at college.harvard.edu> wrote:
>
>> I have this (as I said, I haven't tried it). It seems to be a different
>> patch.
>>
>>
>> On Tue, Dec 24, 2013 at 11:17 AM, Andrew MacPherson <
>> andrew.macp at gmail.com> wrote:
>>
>>> Hi Keno,
>>>
>>> I found this old patch that hooks into the GDB JIT registration
>>> mechanism which we were planning to use as a starting point:
>>>
>>> http://lists.cs.uiuc.edu/pipermail/lldb-dev/2010-December/000314.html
>>>
>>> If you have anything else we'd love to take a look!
>>>
>>> Cheers,
>>> Andrew
>>>
>>>
>>> On Tue, Dec 24, 2013 at 8:34 AM, Keno Fischer <
>>> kfischer at college.harvard.edu> wrote:
>>>
>>>> Hi Andrew,
>>>>
>>>> I'm also one of the Julia core developers and the guy currently working
>>>> on
>>>> debugging support. I was given a patch to add MCJIT debugging support
>>>> to LLDB with the disclaimer that it probably doesn't work. I haven't
>>>> tried it
>>>> yet, so I can't say how close it is, but it's probably at least a
>>>> starting point.
>>>>
>>>> I'd be happy to coordinate any efforts.
>>>>
>>>> - Keno
>>>>
>>>> _______________________________________________
>>>> lldb-dev mailing list
>>>> lldb-dev at cs.uiuc.edu
>>>> http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
>>>>
>>>>
>>>
>>
>
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