在C++调试器中设置断点(相对于代码)

Question

我遇到的问题是，当我运行；C++运行/调试活动文件"；代码执行，但不会在我设置的断点处停止。我不太了解调试器是如何工作的，但我猜调试器没有听到正确的进程？或者为什么会发生这种情况？

老实说，我一直在努力纠正我的所有依赖关系，在这个过程中，我可能破坏了预期的功能，所以我设置脚本的方式可能破坏了它的预期用途。

tasks.json看起来像这样：

{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++ build active file",
"command": "g++",
"args": [
"main.cc",
"-o",
"main",
"-std=c++17",
"-I/usr/local/include/cairomm-1.16",
"-I/usr/local/lib/cairomm-1.16/include",
"-I/usr/include/cairo",
"-I/usr/include/glib-2.0",
"-I/usr/lib/x86_64-linux-gnu/glib-2.0/include",
"-I/usr/include/pixman-1",
"-I/usr/include/uuid",
"-I/usr/include/freetype2",
"-I/usr/include/libpng16",
"-I/usr/include/sigc++-3.0",
"-I/usr/lib/x86_64-linux-gnu/sigc++-3.0/include",
"-L/usr/local/lib",
"-lcairomm-1.16",
"-lcairo",
"-lsigc-3.0",
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": "build",
"detail": "Task generated by Debugger."
},
{
"type": "cppbuild",
"label": "C/C++: g++-9 build active file",
"command": "/usr/bin/g++-9",
"args": [
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}",
"-L/usr/local/lib",
"-lcairomm-1.16",
"-lcairo",
"-lsigc-3.0"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
]
}

launch.json看起来像这样：

{
"version": "0.0.0",
"configurations": [
{
"name": "gcc - Build and debug active file",
"type": "cppdbg",
"request": "launch",
"program": "${fileDirname}/${fileBasenameNoExtension}",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": false,
"MIMode": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
],
"preLaunchTask": "C/C++: gcc build active file",
"miDebuggerPath": "/usr/bin/gdb"
}
]
}

c_cpp_properties.json看起来像这样：

{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++ build active file",
"command": "g++",
"args": [
"main.cc",
"-o",
"main",
"-std=c++17",
"-I/usr/local/include/cairomm-1.16",
"-I/usr/local/lib/cairomm-1.16/include",
"-I/usr/include/cairo",
"-I/usr/include/glib-2.0",
"-I/usr/lib/x86_64-linux-gnu/glib-2.0/include",
"-I/usr/include/pixman-1",
"-I/usr/include/uuid",
"-I/usr/include/freetype2",
"-I/usr/include/libpng16",
"-I/usr/include/sigc++-3.0",
"-I/usr/lib/x86_64-linux-gnu/sigc++-3.0/include",
"-L/usr/local/lib",
"-lcairomm-1.16",
"-lcairo",
"-lsigc-3.0",
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": "build",
"detail": "Task generated by Debugger."
},
{
"type": "cppbuild",
"label": "C/C++: g++-9 build active file",
"command": "/usr/bin/g++-9",
"args": [
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}",
"-L/usr/local/lib",
"-lcairomm-1.16",
"-lcairo",
"-lsigc-3.0"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
]
}

---

我重新设计了它，这次速度变慢了。我没有启动文件，但

任务如下：

{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++ build active file",
"command": "/usr/bin/g++",
"args": [
"-fdiagnostics-color=always",
"-std=c++17",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}",
"-I/usr/local/include/cairomm-1.16",
"-I/usr/local/lib/cairomm-1.16/include",
"-I/usr/include/cairo",
"-I/usr/include/glib-2.0",
"-I/usr/lib/x86_64-linux-gnu/glib-2.0/include",
"-I/usr/include/pixman-1",
"-I/usr/include/uuid",
"-I/usr/include/freetype2",
"-I/usr/include/libpng16",
"-I/usr/include/sigc++-3.0",
"-I/usr/lib/x86_64-linux-gnu/sigc++-3.0/include",
"-L/usr/local/lib",
"-lcairomm-1.16",
"-lcairo",
"-lsigc-3.0",
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}

这里是c_cpp_properties

{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**",
"/usr/local/lib",
"/usr/local/lib/cairomm-1.16/include",
"/usr/local/include/cairomm-1.16",
"/usr/include/sigc++-3.0",
"/usr/lib/x86_64-linux-gnu/sigc++-3.0/include",
"/usr/include/cairo",
"/usr/include/freetype2"
],
"defines": [],
"compilerPath": "/usr/bin/gcc",
"cStandard": "gnu17",
"cppStandard": "gnu++20",
"intelliSenseMode": "linux-gcc-x64"
}
],
"version": 4
}

Answer 1

我认为tasks.json中有很多不必要的代码，请尝试一下，我能够在调试期间成功地设置断点。

{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++.exe build active file",
"command": "C:\MinGW\bin\g++.exe",
"args": [
"-g",
"${workspaceFolder}\*.cpp",
"-o",
"${fileDirname}\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "compiler: C:\MinGW\bin\g++.exe"
}
]
}