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    1. 站長資訊網(wǎng)
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      vscode如何使用gdb調(diào)試

      vscode如何使用gdb調(diào)試

      1、vscode啟動debug窗口

      按Ctrl+Shift+D,打開Debug窗口

      默認是“No configurations”, 點擊“F5”,會提示你配置GDB參數(shù)(選擇gcc build and debug active file),配置文件名稱為launch.json(配置參考3)

      配置完成后,再按F5, 會提示配置GCC,選擇“Configure Task”, 選擇“C/C++: build and debug active file”, 配置文件名稱為task.json(配置參考2)

      2、GCC配置

      {     // See https://go.microsoft.com/fwlink/?LinkId=733558      // for the documentation about the tasks.json format     "version": "2.0.0",     "tasks": [         {             "type": "shell",             "label": "gcc build active file",             "command": "/usr/share/mips-gcc-4.6/staging_dir/bin/mips-linux-gcc",             "args": [                 "-g",                 "${file}",                 "-o",                 "${fileDirname}/${fileBasenameNoExtension}"             ],             "options": {                 "cwd": "/usr/bin"             },             "problemMatcher": [                 "$gcc"             ]         }     ] }

      “command”: 編譯鏈的地址

      3、GDB配置

      {     // Use IntelliSense to learn about possible attributes.     // Hover to view descriptions of existing attributes.     // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387     "version": "0.2.0",     "configurations": [         {             "name": "gcc build and debug active file",             "type": "cppdbg",             "request": "launch",             "miDebuggerServerAddress": "192.168.0.1:10000",             "program": "/home/renyinshan/work/p53/apps/cmdlib/test",             "args": [],             "stopAtEntry": true,             "cwd": "/home/renyinshan/work/p53/apps/cmdlib/",             "environment": [],             "externalConsole": false,             "MIMode": "gdb",             "setupCommands": [                 {                     "description": "Enable pretty-printing for gdb",                     "text": "-enable-pretty-printing",                     "ignoreFailures": true                 }             ],             "preLaunchTask": "gcc build active file",             "miDebuggerPath": "/home/renyinshan/work/p53/apps/gdb/install/bin/mips-linux-gdb"         }     ] }

      “program”: 要調(diào)試的程序名(包含路徑,最好絕對路徑,免得麻煩)

      “miDebuggerServerAddress”: 服務器的地址和端口

      “cwd”: 調(diào)試程度的路徑

      “miDebuggerPath”: gdb的路徑

      4、GDB server編譯及運行

      1)編譯

      P53編譯時,請打開如下開關; P59需要從編譯鏈目錄拷貝一個。

      scripts/tozedap-router_4g_industry/config.tozedap-router_4g_industry:564:export NO_CPP_LIB=0  GDB運行需要libstdc++.so.6的庫,所以需要把此開關打開。
      ./cool 3 gdb_build  等待完成即可

      編譯完成后的文件如下:

      renyinshan@renyinshan:~/work/p53/build$ ls ../apps/gdb/install/* ../apps/gdb/install/bin: mips-linux-gdb  mips-linux-gdb-add-index  mips-linux-run  ../apps/gdb/install/include: gdb  ../apps/gdb/install/lib: libmips-linux-sim.a  ../apps/gdb/install/share: gdb  info  locale  man  renyinshan@renyinshan:~/work/p53/build$ ls ../apps/gdb/installgdbserver/bin/ mips-linux-gdbserver renyinshan@renyinshan:~/work/p53/build$

      說明:

      install/bin 目錄的mips-linux-gdb為vscode中配置需要的;

      installgdbserver/bin/ 目錄中的mips-linux-gdbserver,需要拷貝到板子中;

      2)ssh登錄設備,下載gdbserver到/tmp目錄中, 并增加+x權(quán)限

      3)ssh登錄設備,下載可執(zhí)行程序到/tmp目錄中, 并增加+x權(quán)限

      4)運行

      /tmp # ./mips-linux-gdbserver :10000 ./test  調(diào)試輸出:  /tmp # ./mips-linux-gdbserver :10000 test  Process /tmp/test created; pid = 22608 Listening on port 10000 Remote debugging from host 192.168.0.245 APP is running!

      備注說明:
      1) 下載的可執(zhí)行程序,必須保證是設備所需編譯鏈編譯的;
      2) vscode中按F5調(diào)試時,GCC編譯的配置和GDB參考1和2;

      5、調(diào)試

      準備完成, 在VSCode進行調(diào)試。

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