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udk 加载脚本分析

CAUTION!

本篇实际上已经废弃

Automatical execution

每一次执行n或s后自动输出对应的C语言源代码,相应的Python实现代码在script/udk_gdb_script中Edk2StopHandler中对stop-handler的定义.

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class Edk2StopHandler(gdb.Command):
    """Command to be run when target is stopped.
       这些代码将在目标的被调试机器停止时执行.
    """
    def __init__(self):
        #向 Gdb 注册stop-handler命令.
        super(Edk2StopHandler, self).__init__("stop-handler", gdb.COMMAND_RUNNING, gdb.COMPLETE_NONE)

    def invoke(self, arg, from_tty):
        self.dont_repeat()
        args = UdkCommandHelper.checkParameter(arg, 0)
        if args == None:
            return
        gdb.execute("refresharch")
        if not UdkCommandHelper.supportExpat():
            gdb.execute("loadthis")
        gdb.execute("info exception")
Edk2StopHandler()

在停止时执行是靠如下命令设置的.

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define hook-stop
  stop-handler
end