ljmf00 added a comment. In D117928#3262710 <https://reviews.llvm.org/D117928#3262710>, @jingham wrote:
> I guess we're just all confused that you are mentioning GDB at all, and the > only thing I could think of is gdbserver, since that's the only way anything > GDB could get mixed with anything LLDB... Ok, I will try to give some context. I can be wrong/confused and this can be unrelated to GDB and a coincidence with my observable behaviour, but running LLDB with default settings, `register write` command triggers the following function https://github.com/llvm/llvm-project/blob/main/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp#L296 . Interestingly, I just did a test right now: removed GDB from my machine and did a clean build. That function (`GDBRemoteRegisterContext::WriteRegister`) still triggers when `register write`. I'm a bit confused now on why this is triggered. Maybe there is a fallback system? I don't have any guidance on this whatsoever, so my view on how those plugins work can be wrong. Would be cool to have a brief explanation about the //pipeline// of `RegisterContext` and how it interacts with `GDBRemoteRegisterContext` to be in sync. Can be confusing to add a link to the GDB bug tracker, but one thing I can be sure of is that this is dependent on the CPU and by the observed behaviour, the presence of AVX or some other extension introduced on x86_64-v2 related to XMM registers (can't think of another one other than SSE). I can also describe my testing environment and give the libvirt/qemu parameters I added to virtualize the CPU flags, if needed, but the CPU configuration is similar to the models I described. I ran LLDB on a clean archiso live installation. In D117928#3262762 <https://reviews.llvm.org/D117928#3262762>, @mgorny wrote: > I'm sorry but I don't understand what you're talking about. Could you explain > how are you running tests? Is there some way we can reproduce the problem? You can see a build log I posted on discourse: https://ipfs.io/ipfs/bafybeidsf745d4qxrzhbbir4h23ov4rppvo2uke7qh75oj6lfoi6zkcyre/ Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D117928/new/ https://reviews.llvm.org/D117928 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
