Method and system for debugging program in multi-threading surroundings

Abstract

The invention provides a method and a system used for debugging programs under a multi-thread environment. The method for debugging the programs under the multi-thread environment interrupts the execution of the debugged programs by replacing an instruction at the position where the broken point used for debugging is required to be arranged with an interruption instruction. The method comprises that when the instruction at the position where the broken point used for debugging is arranged is replaced by the interruption instruction, the instruction before the position of the broken point used for debugging is set as a protection broken point; furthermore, when the interruption instruction is reused to replace the instruction at the position of the broken point used for debugging, the protection broken point is replaced by the original instruction at the position of the debugged program. The method of the invention arranges the protection broken point before the broken point used for debugging after one thread of the debugged program is executed to a broken point used for debugging and enters a broken point disposal mechanism, thus avoiding other threads from missing the broken point used for debugging. Furthermore, the method of the invention does not need to suspend other threads and can realize the program debugging under the multi-thread environment with low expense.

Description

Method and system for debugging program in multi-thread environment technical field The invention relates to the field of data processing, in particular to a method and a system for debugging a program in a multi-thread environment. Background technique Computer systems and computer-based devices (such as industrial automation systems) usually consist of one or more central processing units, random access memories for storing data or control instructions, and input and output interfaces for data or instruction input and user interaction. and other related components. Such computer systems and computer-based devices cannot function without the support of operating systems and application software. All software products need to be debugged before they are put into use to ensure the correctness of their operation results and make them meet the design requirements. Therefore, debugging tools are used. A debugger (debugger) is a software product that can be used to start ot...

AI Technical Summary

Problems solved by technology

However, the number of these breakpoint registers is quite limited, for example, there are only 4 hardware breakpoint registers in Intel's X86 architecture, which is often difficult to meet the needs of practical applications

In addition, there are many hardware architectures that do not support hardware breakpoint mechanism

Therefore, the hardware breakpoint mechanism can often only be used as an auxiliary to the software breakpoint mechanism.

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