The GNU Binutils are a collection of binary tools. The main ones are: ld - the GNU linker. as - the GNU assembler. gold - a new, faster, ELF only linker. But they also include: addr2line - Converts addresses into filenames and line numbers. ar - A utility for creating, modifying and extracting from archives. c++filt - Filter to demangle encoded C++ symbols. dlltool - Creates files for building and