The Open On-Chip Debugger
Minimal terminal program to get access to a serial console
C/C++ function instrumentation (AOP, exception/stack tracing, GC)
Homebrew toolchains for wii, gamecube, 3ds, ds, gba, gp32 and psp
Linux source-level kernel debugger
C library, that logs memory changes made by malloc and free.
A tiny and easy to use log system for C/C++
powerpc disassembler/assembler