高级堆栈破坏问题定位方法-进阶GDB使用

在高级堆栈破坏问题的定位中，利用GDB的进阶功能可以有效识别问题。以下是基于WISG平台的栈破坏问题定位方法。正常堆栈信息提供了充足的数据来定位问题，每层堆栈保存一个4字节的地址，代表函数入口或参数地址。通过编译时添加-g选项，这些地址会被映射为具体的函数名称。示例堆栈信息如下：

#0 0x083de6c1 in CNlIPPkgHandler::OnIPMessage (this=0x57206cfc, pRawData=0x57fe7008 "ü005") at /home1/da1xcom/WISGdA12/src/parser/common/netlink/NetlinkHandler.cpp:705
int iThread = CServiceThread::Dispatch(pParam->m_uiUserIP);
(gdb) bt
#0 0x083de6c1 in CNlIPPkgHandler::OnIPMessage (this=0x57206cfc, pRawData=0x57fe7008 "ü005") at /home1/da1xcom/WISGdA12/src/parser/common/netlink/NetlinkHandler.cpp:705
#1 0x083dd008 in CNetlinkHandler::handle_input (this=0x57206cfc) at /home1/da1xcom/WISGdA12/src/parser/common/netlink/NetlinkHandler.cpp:120
#2 0x083e0a0b in CNLIPPkgRecvThread::Run (this=0x57206be0) at /home1/da1xcom/WISGdA12/src/parser/common/netlink/NetlinkThread.cpp:268
#3 0x080c5fac in CThread::svc (this=0x57206be0) at /home1/da1xcom/WISGdA12/src/common/thread/Thread.cpp:228
#4 0x08418910 in ACE_Task_Base::svc_run (args=0x57206be0) at Task.cpp:258
#5 0x0842b7c8 in ACE_Thread_Adapter::invoke (this=0x57206fb0) at Thread_Adapter.cpp:95
#6 0x555992ab in start_thread () from /libpthread.so.0
#7 0x55771a4e in clone () from /libc.so.6

通过这些信息，可以精准地追踪到引发问题的函数调用链，并快速定位故障原因。