[Lldb-commits] [PATCH] D78978: [LLDB] Add support for WebAssembly debugging

Wed Jan 6 16:28:18 PST 2021

dblaikie added a comment.

In D78978#2483327 <https://reviews.llvm.org/D78978#2483327>, @paolosev wrote:

> In D78978#2481358 <https://reviews.llvm.org/D78978#2481358>, @vwzm228 wrote:
>
>> Is there any progress about such patch and D78801 <https://reviews.llvm.org/D78801>？
>>
>> I have implemented the debugging feature in our Wasm VM based on  https://reviews.llvm.org/D78801, and it already work to attach, set breakpoint, step, show variable value, backtrace...
>>
>> I am not sure if I need to change LLDB part to this one, or keep using D78801 <https://reviews.llvm.org/D78801>.
>>
>> But if both patches wont be merged, I have to maintain a private LLDB version....
>
> Unfortunately I have not received any more feedback for this patch, or the alternative version D78801 <https://reviews.llvm.org/D78801>, so I assumed it won't move forward :(
> Meanwhile, I have created a personal fork (https://github.com/paolosevMSFT/llvm-project/tree/WasmDbg).
>
> I still think that it would be very useful to add support for Wasm debugging to LLDB. Especially in scenarios where Wasm is not used as part of a web app, but server side (node.js) or running on micro runtime for IoT devices.
> I know that there is the problem that LLDB does not support segmented address spaces, and so this patch requires a couple of tiny but smelly changes to core code.
> From the mailing list I seem to remember that somebody was working to add support for segmented addresses, but I don't know what is the current state of the initiative.
>
> I'd be happy to keep working on this, please let me know what I could do to progress toward an acceptable solution.

Usually the thing is to ping the review thread at most weekly & maybe search around for specific reviewers to ask if you're met with a lot of silence.

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https://reviews.llvm.org/D78978