cctools is the critical linker and assembler suite used by Apple for macOS and iOS development. While often overshadowed by the high-level LLVM Clang compiler, cctools provides the low-level utilities required to generate Mach-O binaries.
🚀 Cctools 6.5 is out!
Previous versions of Cctools had issues parsing Mach-O files larger than 4 GB. Cctools 6.5 introduces proper support for 64-bit offsets within the load commands, making it safe for monolithic binaries like browser engines or game assets. Cctools 6.5
With the release of Cctools 6.5, developers have witnessed a significant evolution in performance, compatibility, and feature set. Whether you are a reverse engineer, a system programmer, or a build engineer working with cross-compilation, understanding Cctools 6.5 is essential.
The linker is the core component of the suite. With the release of Cctools 6
Production Readiness: Version 6.5 represents a milestone in the project's shift toward being "production-ready," featuring automated builds and distribution through channels like Conda.
Last updated: 2025 – This article will be revised as Cctools evolves beyond version 6.5. ensuring custom maps behave as expected.
Data Integrity: Reliable manipulation of CC2 and CCL files, ensuring custom maps behave as expected.