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Multibreak software debugging device and method

A software debugging, multi-breakpoint technology, applied in software testing/debugging, machine execution devices, instruments, etc., can solve problems such as implementation difficulties and large storage space consumption

Active Publication Date: 2015-07-15
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned software multi-breakpoint debugging technology needs to back up the real instruction at the breakpoint location, and a high-level language is required to parse the real instruction at the breakpoint when replacing the real instruction. In this way, implementing this solution requires a large amount of additional storage space to store To back up the real instruction at the breakpoint, it is also necessary to replace the instruction in the pipeline, which is difficult to implement

Method used

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  • Multibreak software debugging device and method
  • Multibreak software debugging device and method
  • Multibreak software debugging device and method

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Embodiment Construction

[0038] In the embodiment of the present invention, the IDE sets a breakpoint in the software program; the driver obtains the breakpoint information in the software program, and replaces the real instruction at the breakpoint with a breakpoint instruction according to the breakpoint information; When the command is clicked, the microprocessor reports an interrupt to the IDE and freezes the pipeline; the driver changes the breakpoint command back to the real command according to the command issued by the IDE; the microprocessor unfreezes the pipeline and fetches the real command at the breakpoint ; The driver replaces the real instruction at the breakpoint with the breakpoint instruction again in the interval between the execution of the breakpoint instruction, and realizes the software debugging of multiple breakpoints through the above method.

[0039] The present invention will be described in further detail below through the accompanying drawings and specific embodiments;

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Abstract

Disclosed are a multi-breakpoint software debugging device and method. The software debugging device comprises: a driver, a microprocessor, an instruction memory and a microcode integrated development environment (IDE). The software debugging device realizes multi-breakpoint software debugging by using a method of setting breakpoints in a software program, acquiring breakpoint information, replacing instructions at the breakpoints with breakpoint instructions, upon execution of a breakpoint instruction, reporting the interruption, freezing the pipeline, changing the breakpoint instruction back to the real instruction according to a command delivered by the IDE, unfreezing the pipeline, and fetching the real instruction at the breakpoint, and replacing the real instruction at the breakpoint with the breakpoint instruction again at the break of breakpoint instruction execution. Also disclosed is a computer storage medium for storing a computer program that executes the software debugging method.

Description

technical field [0001] The invention relates to software debugging technology, in particular to a multi-breakpoint software debugging device and method. Background technique [0002] Microprocessor debugging technology is widely used in software fault location, software code analysis and reverse engineering, and plays a vital role in the design and use of microprocessors. [0003] Debugging the software of the microprocessor generally includes the following two aspects: setting breakpoints in the software program, so that when the program executes to the set breakpoint position, an interrupt is generated and the execution is stopped; the user can perform single-step operation on the program. Or get it out of the interrupted state and continue to execute. [0004] As can be seen from the above content, breakpoint technology is an indispensable and decisive technology in software debugging of microprocessors. The current breakpoint technology is mainly divided into two types...

Claims

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Application Information

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IPC IPC(8): G06F11/36G06F9/30
CPCG06F11/362
Inventor 郝宇安康王志忠
Owner SANECHIPS TECH CO LTD
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