Based on the embedded debugging tools ( lambdagdb and lambdatra ) which have basic debugging features , this thesis introduces some key technologies involved in a task - level debugging tool , including task recognition , running control , dynamic load / unload and binding task or task group to debug , etc . the task - level debugging system adopts cross - debugging mode , which means both of the debugger of host , lambdagdb , and the debug agent of target , lambdada , support task - level debugging feature 本论文总结了,在只具有基本调试功能的嵌入式调试工具( lambdagdb和lambdatra )基础上,设计实现了一种能针对任务进行调试的任务级调试工具所涉及的若干关键技术,包括增加对被调试任务的识别、运行控制、动态加载卸载,以及根据用户的不同要求,绑定某个任务(集)进行调试等。