当vs设置断点时，SDM将调用：
// Creates a pending breakpoint in the engine. A pending breakpoint is contains all the information needed to bind a breakpoint to // a location in the debuggee. int IDebugEngine2.CreatePendingBreakpoint(IDebugBreakpointRequest2 pBPRequest, out IDebugPendingBreakpoint2 ppPendingBP)
在此回调中，我们实现并填充IDebugPendingBreakpoint2接口：
AD7PendingBreakpointpendingBreakpoint=newAD7PendingBreakpoint(pBPRequest, m_engine, this);
ppPendingBP= (IDebugPendingBreakpoint2)pendingBreakpoint;
但此时并不需要通知gdb设置断点。
接着SDM将调用
// Binds this pending breakpoint to one or more codelocations.
intIDebugPendingBreakpoint2.Bind() {
在这个回调函数中我们将通知gdb绑定断点（-break-insert命令），下面是gdb对命令的响应：
-break-insertrc.c:1564
^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0805fc75",func="main",file="../../app/rc/rc.c",fullname="/mnt/hgfs/nvs_dev/src/ipc/app/rc/rc.c",line="1564",times="0",original-location="rc.c:1564"}
当gdb正常设置断点后，我们需要通知SDM断点绑定成功：
Send(
newAD7BreakpointBoundEvent((AD7PendingBreakpoint)pendingBreakpoint, boundBreakpoint),
AD7BreakpointBoundEvent.IID,
null
);
??黑夜下，撕开那张面具尽是怠倦的容颜，
