VSCode调试C++

在ubuntu下调试C++ 本人觉得VSCode比较好用。

步骤如下:

1. 编写.cpp,.h文件

自行完成自己的程序。

2. 编写CMakeLists.txt。下面是一个比较好用的模板。

根目录为:

PROJECT(mmseg CXX) #项目名称

#Cmake最低版本要求
CMAKE_MINIMUM_REQUIRED(VERSION 2.6) 

#允许gdb调试
set(CMAKE_BUILD_TYPE "Debug")
set(CMAKE_CXX_FLAGS_DEBUG "$ENV{CXXFLAGS} -O0 -Wall -g -ggdb")
set(CMAKE_CXX_FLAGS_RELEASE "$ENV{CXXFLAGS} -O3 -Wall")

#添加C++11支持及其他选项
set(CMAKE_CXX_FLAGS "-std=c++0x ${CMAKE_CXX_FLAGS} -g -ftest-coverage -fprofile-arcs -Wno-deprecated")
#set(CMAKE_CXX_FLAGS "-std=c++0x ${CMAKE_CXX_FLAGS -g -ftest-coverage -fprofile-arcs"})


#添加dict子目录
add_subdirectory(dict) 

#当前目录下所有源文件赋给DIR_SRCS
AUX_SOURCE_DIRECTORY(. DIR_SRCS) 

#生成可执行文件
add_executable(mmseg ${DIR_SRCS}) 

#添加C++11编译选项,但是只有CMAKE 3.1支持
#target_compile_features(mmseg PRIVATE cxx_range_for)

#添加链接库
target_link_libraries(mmseg Dict)

子目录为:

#查找当前目录下所有源文件
#并将结果保存在DIR_LIB_SRCS变量中
aux_source_directory(. DIR_LIB_SRCS)

#生成链接库
add_library(Dict ${DIR_LIB_SRCS})

3. 编写一个compile.sh

mkdir -p build
rm -rf build/*
cd build
cmake .. -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Debug
make

4. build and run tasks

使用Ctrl+Shift+P快捷键,并且在下拉菜单中选择>tasks: configure task,然后在下拉菜单中选择ohter 用于build程序。在生成的tasks.json中加入build与debug内容   

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "CMake build",
            "type": "shell",
            "command": "./compile.sh",
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": [
                "$gcc"
            ]
        },
        {
            "label": "run",
            "type": "shell",
            "command": "./build/your_run_file",  #!! change here for your config
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": [
                "$gcc"
            ]
        }
    ]
}

  

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然后使用Ctrl+Shift+P快捷键,并且在下拉菜单中选择>Tasks: Run Task,选择build或者run tasks就可以build并生成可执行文件。

这时可能会提示:

/bin/bash: ./compile.sh: Permission denied
The terminal process terminated with exit code: 126

错误,使用命令

sudo chmod 755 compile.sh

5.debug程序

由于使用cmake来build程序,已经在compile.sh中加入了debug信息-DCMAKE_BUILD_TYPE=Debug

点击VSCode左侧的小虫子按钮,添加一个新的configuration,选择C++(GDB/LLDB)。这时产生一个launch.json文件,添加

{
    // 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": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/build/blob_demo",  #!! change here for your config
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ]
        }
    ]
}

在你的.cpp文件中设置一个断点,点击运行按钮,就可以debug了。

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转载自www.cnblogs.com/hgl0417/p/10496603.html