LLDB LoongArch support

[SixWeining]

To make LoongArch support in LLDB as good as possible, we have these things to do at least:

• core dump debugging [lldb][LoongArch64] Add support for LoongArch64 in elf-core for lldb #112296
• function calls support in lldb expressions [lldb][LoongArch] Function calls support in lldb expressions #114742
• unwind plan in ABI plugin [lldb][LoongArch] Function calls support in lldb expressions #114742
• watch point / hardware breakpoint [lldb][Process] Introduce LoongArch64 hw break/watchpoint support #118770
• Fix the incorrect floating-point register dwarf number [lldb][LoongArch] Fix the incorrect floating-point register dwarf number #120391
• vector support [LLDB][LoongArch] Add LSX and LASX register definitions and operations #120664
• Add debug location for register reload [LoongArch] Add debug location for register reload #122057

Supplements are welcome.

[SixWeining]

cc @kasperk81 @DavidSpickett @lawn123 @shushanhf

[llvmbot]

@llvm/issue-subscribers-lldb

Author: Lu Weining (SixWeining)

To make LoongArch support in LLDB as good as possible, we have these things to do at least: - [ ] core dump debugging - [ ] function calls support in lldb expressions - [ ] unwind plan in ABI plugin - [ ] watch point / hardware breakpoint - [ ] vector support

Supplements are welcome.

[SixWeining]

Hi @DavidSpickett, all the issues listed here have been addressed now. Do you think it's time to close it and mention it in main lldb page (for Linux user-space debugging)?

[DavidSpickett]

What are your check-lldb results like? Do you have tests for any functionality skipped right now?