LLD

LLD is a linker from the LLVM project, designed as a drop-in replacement for system linkers like GNU ld or gold. It supports linking for multiple architectures including x86, ARM, and WebAssembly, and is known for its speed and modular design. As part of the LLVM ecosystem, it integrates closely with Clang and other LLVM tools for efficient compilation workflows.

Also known as: LLD Linker, lld, LLVM Linker, LLD (LLVM), ld.lld

Why learn LLD?

Developers should use LLD when working with LLVM-based toolchains, especially for projects requiring fast linking times or cross-compilation across different architectures. It is particularly useful in embedded systems, WebAssembly development, and large C/C++ projects where linking performance is critical, as it often outperforms traditional linkers like GNU ld.

Learning Resources

• docs: LLD Documentation
• docs: LLVM Project - LLD
• docs: Using LLD with Clang
• video: Introduction to Linkers (includes LLD)
• docs: LLD on GitHub