[all-commits] [llvm/llvm-project] 3a9e07: [LLDB][LoongArch] Make software single stepping work

[Lu Weining via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3a9e07b1e7f4718a0e117f3a732f1679c4bf2e30
      https://github.com/llvm/llvm-project/commit/3a9e07b1e7f4718a0e117f3a732f1679c4bf2e30
  Author: Weining Lu <luweining at loongson.cn>
  Date:   2022-12-08 (Thu, 08 Dec 2022)

  Changed paths:
    M lldb/source/Plugins/Instruction/CMakeLists.txt
    A lldb/source/Plugins/Instruction/LoongArch/CMakeLists.txt
    A lldb/source/Plugins/Instruction/LoongArch/EmulateInstructionLoongArch.cpp
    A lldb/source/Plugins/Instruction/LoongArch/EmulateInstructionLoongArch.h
    M lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
    M lldb/source/Plugins/Process/Utility/NativeProcessSoftwareSingleStep.cpp
    M lldb/tools/lldb-server/CMakeLists.txt
    M lldb/tools/lldb-server/SystemInitializerLLGS.cpp

  Log Message:
  -----------
  [LLDB][LoongArch] Make software single stepping work

Hardware single stepping is not currently supported by the linux kernel.
In order to support single step debugging, add EmulateInstructionLoongArch
to implement the software Single Stepping. This patch only support the
simplest single step execution of non-jump instructions.

Reviewed By: SixWeining, DavidSpickett

Differential Revision: https://reviews.llvm.org/D139158