The LLDB Debugger (LLDB) is a software debugger. It is built as a set of reusable components which extensively use existing libraries from the larger LLVM Project, such as the Clang expression parser and LLVM disassembler.All of the code in the LLDB project is free and open-source software subject to the terms of the University of Illinois/NCSA Open Source License, a permissive free software licence, as is the case with other parts of the LLVM project.