The Mold Linker

· May 8, 2025

rui314/mold: Mold: A Modern Linker 🦠

Having discussed this a bit at work, I finally got round to checking out the project. The README has good examples of what it is, and why to care.

mold is a faster drop-in replacement for existing Unix linkers. It is several times quicker than the LLVM lld linker, the second-fastest open-source linker, which I initially developed a few years ago. mold aims to enhance developer productivity by minimizing build time, particularly in rapid debug-edit-rebuild cycles.

Looking at fundamentals with a performance-oriented perspective and an awareness of modern systems continues to be a source of remarkable opportunities. At the same time, getting something so foundational established takes time and awareness.