Browser-based frontend to gdb (gnu debugger)
Record and Replay Framework
ChatDBG - AI-assisted debugging. Uses AI to answer 'why'
UNIX-like reverse engineering framework and command-line toolset
bash debugger
A free COBOL compiler
object orientated scripting language
Graphical interface to gdb
stm8 binutils gdb
Python Exploit Development Assistance for GDB
GNU assembler/disassembler and other tools for the OR1K64-based KPU
GDB pretty printers for boost
A simulator for Atmel's 8/16-bit AVR microcontrollers
QEMU Interactive Runtime Analyser
Extend GDB Server feature, OS Aware Debugging, Thread Stack Checking
A power tool to debug core dump, memory corruption, optimized code.
C/C++ Compiler for the ActionScript Virtual Machine (AVM2)
Debugger capable of attaching to and injecting code into python
Superseded by http://www.ti.com/tool/msp430-gcc-opensource