gdb vscode调试linux程序,vscode如何使用gdb调试
1、vscode启动debug窗口
按Ctrl+Shift+D，打开Debug窗口
默认是“No configurations”， 点击“F5”，会提示你配置GDB参数(选择gcc build and debug active file)，配置文件名称为launch.json(配置参考3)
配置完成后，再按F5, 会提示配置GCC，选择“Configure Task”， 选择“C/C++： build and debug active file”, 配置文件名称为task.json(配置参考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”： 编译链的地址
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”： 要调试的程序名(包含路径，最好绝对路径，免得麻烦)
“miDebuggerServerAddress”： 服务器的地址和端口
“cwd”: 调试程度的路径
“miDebuggerPath”: gdb的路径
4、GDB server编译及运行
1)编译
P53编译时，请打开如下开关; P59需要从编译链目录拷贝一个。scripts/tozedap-router_4g_industry/config.tozedap-router_4g_industry:564:export NO_CPP_LIB=0
GDB运行需要libstdc++.so.6的库，所以需要把此开关打开。./cool 3 gdb_build
等待完成即可
编译完成后的文件如下：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$
说明：
install/bin 目录的mips-linux-gdb为vscode中配置需要的;
installgdbserver/bin/ 目录中的mips-linux-gdbserver，需要拷贝到板子中;
2)ssh登录设备，下载gdbserver到/tmp目录中， 并增加+x权限
3)ssh登录设备，下载可执行程序到/tmp目录中， 并增加+x权限
4)运行/tmp # ./mips-linux-gdbserver :10000 ./test
调试输出：
/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!
备注说明：
1) 下载的可执行程序，必须保证是设备所需编译链编译的;
2) vscode中按F5调试时，GCC编译的配置和GDB参考1和2;
5、调试
准备完成， 在VSCode进行调试。