LLDBs

LLDB is a modern, high-performance debugger that is part of the LLVM project. It inspects and controls program execution across platforms, with language support for C, C++, Objective-C, Swift, and others. The plural form LLDBs is sometimes used informally to refer to the various builds or instances used in different environments.

Core features include breakpoints, watchpoints, stepping, and thread/process control, plus backtraces. It offers a Clang-based expression evaluator, rich data formatting, and Python scripting for automation. The LLDB shell provides a powerful command line, and the project exposes APIs for tooling and integration with other software.

Architecturewise, LLDB uses a front-end to drive a debugger engine. It provides a C++ API (SB* classes) and a Python API for automation. Remote debugging is supported via a debug server (lldb-server) on the target, enabling debugging of devices or virtual machines from a host. Various IDEs and front-ends integrate LLDB commands to fit different workflows.

Platform and language support: LLDB runs on macOS, Linux, and Windows, and is the default debugger in Xcode on macOS. It has strong support for Swift and other LLVM-associated languages, while also handling C, C++, and Objective-C. Debug information is typically provided via DWARF on most platforms.

History and ecosystem: LLDB originated within the LLVM project to provide a modern debugger and continues to evolve with community contributions. It is distributed with LLVM releases and is widely used in development workflows across platforms.