Dynamic and static fusion binary translation method and system based on dynamic link library

Abstract

The invention belongs to the field of software transplantation, and particularly relates to a dynamic and static fusion binary translation method and system based on a dynamic link library. The methodincludes: dividing a program by taking a function as a unit, and if the function is a third-party library function, executing the program in a local library replacement mode; if the indirect jump branch instruction exists in the function, placing the function in a dynamic translator part for translation execution, and if the indirect jump branch instruction does not exist in the function, statically translating the function by taking a basic block as a unit, recording relocation information translated by the function, and generating a function relocation information table; analyzing and optimizing the translated target code according to the static analysis information and the relocation information, and generating a dynamic link library for calling the target program in the dynamic execution process; and during dynamic execution, preferentially executing the optimized function according to the relocation information table and the dynamic link library. According to the method, the advantages of static binary translation offline optimization are fully utilized, codes needing to be translated and optimized in the dynamic execution period are statically executed, translation expenditure is reduced, and execution efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of software transplantation, and in particular relates to a binary translation method and system based on a dynamic link library combining dynamic and static. Background technique [0002] The processor is the core component of the modern computer architecture, and the design and manufacturing technology of the processor is the core technology of the entire information industry. For different functional requirements and application scenarios, a large number of processor architectures including x86, Alpha, PowerPC, IA-64, ARM, MIPS, Shenwei, and Loongson have emerged. Different processor architecture designs use different instruction sets, which brings software compatibility problems, that is, binary executable programs generated for a certain processor cannot be directly run on other processors with incompatible instruction sets. In this case, binary translation technology came into being. A binary transla...

AI Technical Summary

Problems solved by technology

However, due to the limitation of various factors in the execution process of the existing dynamic and static combined binary translation, the static execution accounts for about 20%, and its optimization features cannot be fully utilized, and the translation execution efficiency and overhead are affected.

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