ASCMS: An Accurate Self-Modifying Code Cache Management Strategy in Binary Translation

Abstract

Self-modifying code poses potential problems in binary translation. When the original source code had written by itself, the translated code block from source code must be retranslated. Self-modifying code must be accurately emulated by the runtime. To improve translation efficiency of self-modifying code, this paper design and realize a new policy named ASCMS for self-modifying code cache management. The ASCMS provides a precise positioning to a translated block, not to a trace or the whole code cache. Through the simulation experiments, The ASCMS has 3.95 times increase to self-modifying code in binary translation.