Valgrind - Valgrind is an instrumentation framework for building dynamic analysis tools.
WinAPIOverride - WinAPIOverride : This software allows you to monitor and/or modify any function of a process for any calling convention (stdcall or cdecl)
strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
Process Monitor - Monitor file system, Registry, process, thread and DLL activity in real-time.
Libcsdbg - C++ exception (and generic) stack trace debug suite
EasyHook - The reinvention of Windows API Hooking