- GCC - The GNU Compiler Collection (Git)
- GDB - The GNU Project Debugger (Git)
- Binutils - The GNU Binary Utilities (Git)
- LLVM - The LLVM Compiler Infrastructure (Git)
- LLDB - The LLDB Debugger
- Clang - C language family frontend for LLVM
- LLD - The LLVM Linker
LLVM Resources
- Crosstool-NG - Versatile toolchain generator supporting many architectures and components
- OSXCross - macOS Cross toolchain for Linux and *BSD
ELF
Mach-O
DWARF
Linkers