[Lldb-commits] [lldb] [lldb] Implement basic support for reverse-continue (PR #99736)

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jimingham wrote:



> On Jul 29, 2024, at 3:16 PM, rocallahan ***@***.***> wrote:
> 
> 
> Is there a notion of "reverse stepping" like "take me to the line that preceded this one in execution history", and if so what contains the logic that does that?
> 
> rr supports the "bs" gdbserver packet to reverse-step a single instruction (and so does the test proxy I'm adding here). To "reverse-next one line" we will need to implement a thread plan that uses a combination of reverse-step-instruction and reverse-continue-to-breakpoint. That's future work. It may be difficult, and it's also not very high priority because it tends not to get used very much by gdb users.
> 
I guessed that was the case.  We should still try to do something here, tbreak/reverse continue probably gets old over time, but that seems fine to leave for "future work".

Jim


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https://github.com/llvm/llvm-project/pull/99736