Debugging control implementing method and system

Abstract

The invention discloses a method for realizing debugging control. The method comprises a breakpoint-inserting process and a breakpoint-deleting process, wherein the breakpoint-inserting process is realized by inserting a breakpoint only effective into a current thread or a task cut in when a kernel is scheduled, and the breakpoint-deleting process is realized by deleting the breakpoint when the kernel schedules the thread or the task required to be cut out. The invention also discloses a debugging control system. The method inserts the breakpoint effective into the current thread or the task cut in when the kernel is scheduled and does not insert code segments in breakpoints ineffective into the current thread or the task, thus all debugging events generated in the debugging process are effective events, so that the method avoids the influence of ineffective events on debugging and improves debugging efficiency. As the method inserts the breakpoint when the thread or the task is scheduled and cut in, the method does not need to control the stop and restoration of the other threads or tasks while processing the current debugging event, thereby further improving debugging efficiency and avoiding the occurrence of breakpoint-missing events.

Description

technical field [0001] The invention relates to the debugger technology in the computer field, in particular to a method and system for realizing debug control that can be used for multi-thread or multi-task. Background technique [0002] With the continuous development of information technology, the scale and complexity of software continue to increase, and there are more requirements for debugger functions; at the same time, there are higher requirements for debugging efficiency and debugging stability. [0003] At present, there are already many relatively mature integrated development and debugging environments on the general-purpose desktop operating system. But there is no mature debugger implementation in the embedded system at present. The main reasons are: firstly, the operating systems of many embedded systems do not support debugging and cannot debug user programs; secondly, embedded systems have relatively high requirements for debuggers, because compared with g...

AI Technical Summary

Problems solved by technology

For example, in the above example, when the five threads are equal, the effective breakpoint events only account for one-fifth of the breakpoint events. If other threads (A1, B1, D1, E1) call the common function code (function1) chance More, the frequency of occurrence is faster, more invalid breakpoints occur, and the debugging efficiency will be lower;

[0024] 2. There are many invalid debugging control processes in the debugging process

The main purpose of this kind of control is to avoid missing breakpoint events (if the current breakpoint is also effective for other threads, if other threads are not stopped when processing the breakpoint event, other threads where the breakpoint takes effect may have already run through this breakpoint Point position, thus causing the situation of missing breakpoints), but this processing has brought additional interference to other threads, and also affects the efficiency of debugging

[0025] Taken together, existing debuggers suffer from inefficiencies

Embedded systems have relatively high real-time requirements, and low efficiency may directly lead to logic errors. Therefore, a more efficient and stable debugger solution is needed for embedded systems.

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