Status

FreeBSD

LLDB on FreeBSD lags behind the Linux implementation but is improving rapidly. For more details, see the Features by OS section below.

Linux

LLDB is improving on Linux. Linux is nearing feature completeness with Darwin to debug x86_64, i386, ARM, AArch64, IBM POWER (ppc64), IBM Z (s390x), and MIPS64 programs. For more details, see the Features by OS section below.

macOS

LLDB is the system debugger on macOS, iOS, tvOS, and watchOS and can be used for C, C++, Objective-C and Swift development for x86_64, i386, ARM, and AArch64 debugging. The entire public API is exposed through a macOS framework which is used by Xcode and the lldb command line tool. It can also be imported from Python. The entire public API is exposed through script bridging which allows LLDB to use an embedded Python script interpreter, as well as having a Python module named "lldb" which can be used from Python on the command line. This allows debug sessions to be scripted. It also allows powerful debugging actions to be created and attached to a variety of debugging workflows.

NetBSD

LLDB is improving on NetBSD and reaching feature completeness with Linux.

Windows

LLDB on Windows is still under development, but already useful for i386 programs (x86_64 untested) built with DWARF debug information, including postmortem analysis of minidumps. For more details, see the Features by OS section below.

Features Matrix

Feature	FreeBSD	Linux	macOS	NetBSD	Windows
Backtracing	YES	YES	YES	YES	YES
Breakpoints	YES	YES	YES	YES	YES
C++11:	YES	YES	YES	YES	Unknown
Commandline tool	YES	YES	YES	YES	YES
Core file debugging	YES (ELF)	YES (ELF)	YES (MachO)	YES (ELF)	YES (Minidump)
Remote debugging	NO	YES (lldb-server)	YES (debugserver)	YES (lldb-server)	NO
Disassembly	YES	YES	YES	YES	YES
Expression evaluation	Unknown	YES (known issues)	YES	YES (known issues)	YES (known issues)
JIT debugging	Unknown	Symbolic debugging only	Untested	Work In Progress	NO
Objective-C 2.0:	Unknown	N/A	YES	Unknown	N/A