[Lldb-commits] [PATCH] D50365: Add a new tool named "lldb-vscode" that implements the Visual Studio Code Debug Adaptor Protocol

Leonard Mosescu via lldb-commits lldb-commits at lists.llvm.org
Wed Aug 8 17:52:27 PDT 2018

> The LLDB MI plugin didn't work very well as was quite flaky when I tested
> it a while back.

Just curious, what was the flaky part, the debug adapter or the LLDB MI

On Wed, Aug 8, 2018 at 8:40 AM, Greg Clayton via Phabricator <
reviews at reviews.llvm.org> wrote:

> clayborg added a comment.
> In https://reviews.llvm.org/D50365#1192447, @zturner wrote:
> > To elaborate, if you install the C/C++ plugin, and you go to Debug ->
> >  Configurations, and you go down to the MICmdMode property, it is by
> default
> >  set to "gdb".  But you can change this to "lldb" and it works out of the
> >  box.
> It is a different protocol. The LLDB MI plugin didn't work very well as
> was quite flaky when I tested it a while back. Then I grabbed the CodeLLDB
> plugin by Vadim Chugunov and it worked very well. When I looked more
> closely at this plugin, it was using a javascript/typescript plug-in to
> launch a LLDB instance and then ran a python script that received all of
> the javascript packets from the javascript/typescript based plug-in and ran
> the debug session using the python interpreter. It worked very well and was
> rock solid stable. So I then created this plug-in for Nuclide for use at
> Facebook as they switched all of the debugging plug-in over to use the
> VSCode debug adaptor protocols. It works event better than the CodeLLDB
> plugin with Visual Studio Code and it also doesn't stop you from using the
> python interpreter. The issue I had with the CodeLLDB is that is uses the
> python interpreter to run the debug session thus it isn't available to you
> as a LLDB user.
> So long story short: our IDE at Facebook uses the VSCode protocol, MI is
> clunky and doesn't work that well and was flaky, so this tool was created.
> This also provides a really nice way to do remote debugging where the
> lldb-vscode is run remotely on other systems. This removes the need for
> copying files from a remote host up onto the system that is doing the
> debugging. So we use this at Facebook and it also provides the best way to
> use LLDB to debug using Visual Studio Code or Nuclide.
> https://reviews.llvm.org/D50365
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