Open Source C Debuggers

WinAVR (tm) is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. Includes the GNU GCC compiler for C and C++.

A disassembler for the linux platform. Currently this supports x86 ELF files assumed to be written in C and output to intel- syntax assembly language; however the design is modular and replacements for any of these can be written.

The "Open On-Chip Debugger" provides JTAG/SWD access from GDB (or directly with TCL scripts) to processors with ARM and MIPS based cores. See website for full list of supported targets.

CDK4AVR stands for Cross Development Kit for Atmels AVR RISC processor serie and should you support with a comprehensive Assembler and C development environment for even this processor familie under Linux or similar host systems.

Udis86 is an easy-to-use minimalistic disassembler library for the x86 and x86-64 instruction set architectures. The primary intent of the design and development of udis86 is to aid software development projects that entail binary code analysis.

SkyEye is a very fast full system simulator which takes llvm as IR of dynmic compiled framework.. It can simulate series ARM, Coldfire,Mips, Powerpc, Sparc, x86, TI DSP and Blackfin DSP Processor. Also can simulate multicore system by the multicore of host. The commercial support is provided by DigiProto Co. (http://www.digiproto.com)

This project covers the development of 3rd-party tools for the "Wilson S1MP3 Player", some chinese device manufactured by Actions, with very low customer support. Generally you will find here development tools to access and alter the device firmware.

The prc-tools project currently consists of patches to binutils, gdb, and GCC to support Palm OS, along with several post-linker tools.

CDK4NIOS stands for Cross Development Kit for Altera's soft core processor NIOS and should you support with a comprehensive Assembler and C/C++ development environment under Linux. It will present only free of fee tools, so you can use it without risks.

This project born a few years ago when I encountered a fatal bug on a production environment, unfortunately not replicable on my development machine. I spent many time finding a solution, using also freeware and commercial third-party tools and libraries, but none helped me because the bug crashed the process, and no of the above tools could be able to catch the exception before the process dying. Also, it was not possible to install a development environment onto the production machines, so the only solution was to develop a debugger which didn't need any user/developer interaction. I used many open source resources, then I decided to make the Bug Finder an open source project. It is built over a pluggable architecture to support other languages different from Borland Delphi (the one I used to develop my faulting application and the Bug Finder too). Here is the article http://www.codeproject.com/Articles/602794/Bug-Finder-a-real-Win32-extensible-passive-debugge .

Software Development Kit for the Nintendo(tm) Gameboy Advance(tm) based on GCC.

We provide a mechanism to trace the NPTL Library as few intrusive as possible for the application dynamics. The post-mortem analysis then allows measurements (contension,...) and understanding of hangs or bugs. No change in kernel or user application.

A C++ Development Tool for Linux

GNUDE is a complete suite of GNU C, C++, Fortran, and Java Cross Compilers, and the GDB CPU Simulator and Debugger for embedded microprocessor applications development. Targets development for ARM7, ARM9, and XScale applications.

A reusable gdb stub architecture for multiple processor architectures and platforms. Enables embedded systems development using GNU compiler, linker, debugger and other tools.

CMON51 is a monitor for the 8051/8052, written in C and assembly.

Softx86 is a library that provides software emulation of an Intel 80x86 CPU. The library takes care of executing opcodes and handling exceptions while the host application is responsible for providing simulated RAM, I/O devices, external signals.

Adebug/Assemble is a pair of Debugger/Assembler for the MC68Xxx family running on Atari and Amiga computers. Years ago commercial product, now GPL.

This project contains some test scripts and software for Analog Devices' DSP chip emulators. This verifies whether a particular emulator is working correctly with a particular PC and target board.

A suite of reverse engineering tools for ELF executables and any operating system that supports it, including numerous gdb patches.

The Developer Resources Sega Genesis and Super Nintendo development tools and libraries In 1992 I (Kevin Seghetti) and some friends had a company (Developer Resources) which provided development tools for the Sega Genesis and the Super Nintendo console

Dinaao Is Not An Apple One Emulator. It does however already run most apple1 software. It runs on the command line so cut and paste works perfectly. A great 65C02/Basic learning/development environment.

Dolwin - Nintendo Gamecube Emulator for Windows

EmbedIT is a toolkit providing debugging of 8051 programs (c/asm) on real hardware, using debugging output from SDCC or hex files.

The GDB (GNU debugger) RSP (remote serial protocol) allows remote debugging of embedded software. This project offers source code of monitors so the developer only needs to burn flash EPROMs once, then use serial communication to download/debug.