Debug trace define

#include
#define KDEBUG_TRACE_NS_CUSTOM_FUNC
#ifdef KDEBUG_TRACE_NS_CUSTOM_FUNC
#define KDEBUG_PRINT(format, ...) printf("[KDEBUG] " format "\n", ##__VA_ARGS__)
#else
#define KDEBUG_PRINT(x) (void)0
#endif