GDB除錯技巧，除錯命令

除錯時檢視依賴dso

pidof tvm_rpc_server

cat /proc//maps

子程序除錯

1.vscode

"setupcommands": [ , /output/cpu_simu_dev/bin:$ld_library_path", "ignorefailures": false

},

-exec catch throw

2.gdb

gdb --args ./tvm_rpc_server --port=9080
gdb> set follow-fork-mode child
gdb> catch throw

補充知識：catch point

有時程式中有未捕獲的異常會導致程式異常的行為甚至導致程式的直接退出。這對伺服器程式來說是不可接受的。

可以使用gdb的catch命令來幫助我們除錯異常。

使用gdb捕獲異常的扔出點（相當於在扔出異常的地方新增斷點）：

catch pthread_exit

這樣，如果相應的事件發生，gdb就會中斷程式的執行，就可以使用gdb的bt命令來檢查出現錯誤的呼叫棧了。

cache命令：

(gdb) help catch set catchpoints to catch events. raised signals may be caught: catch signal - all signals catch signal - a particular signal raised exceptions may be caught: catch throw - all exceptions, when thrown catch throw - a particular exception, when thrown catch catch - all exceptions, when caught catch catch - a particular exception, when caught thread or process events may be caught: catch thread_start - any threads, just after creation catch thread_exit - any threads, just before expiration catch thread_join - any threads, just after joins process events may be caught: catch start - any processes, just after creation catch exit - any processes, just before expiration catch fork - calls to fork() catch vfork - calls to vfork() catch exec - calls to exec() dynamically-linked library events may be caught: catch load - loads of any library catch load - loads of a particular library catch unload - unloads of any library catch unload - unloads of a particular library the act of your program's execution stopping may also be caught: catch stop c++ exceptions may be caught: catch throw - all exceptions, when thrown catch catch - all exceptions, when caught do "help set follow-fork-mode" for info on debugging your program after a fork or vfork is caught.

do "help breakpoints" for info on other commands dealing with breakpoints.

參考：

使用gdb除錯異常

gdb doc -- setting catchpoints

GDB除錯技巧，除錯命令

GDB除錯技巧

GDB除錯技巧

gdb除錯技巧

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