在ubuntu下调试C++ 本人以为VSCode比较好用。c++
步骤以下:shell
1. 编写.cpp,.h文件json
自行完成本身的程序。ubuntu
2. 编写CMakeLists.txt。下面是一个比较好用的模板。bash
根目录为:ui
PROJECT(mmseg CXX) #项目名称 #Cmake最低版本要求 CMAKE_MINIMUM_REQUIRED(VERSION 2.6) #容许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支持及其余选项 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) #当前目录下全部源文件赋给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,可是只有CMAKE 3.1支持 #target_compile_features(mmseg PRIVATE cxx_range_for) #添加连接库 target_link_libraries(mmseg Dict)
子目录为:spa
#查找当前目录下全部源文件 #并将结果保存在DIR_LIB_SRCS变量中 aux_source_directory(. DIR_LIB_SRCS) #生成连接库 add_library(Dict ${DIR_LIB_SRCS})
3. 编写一个compile.shdebug
mkdir -p build rm -rf build/* cd build cmake .. -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Debug make
4. build and run tasks调试
使用Ctrl+Shift+P快捷键,而且在下拉菜单中选择>tasks: configure task,而后在下拉菜单中选择ohter 用于build程序。在生成的tasks.json中加入build与debug内容 code
{ // See https://go.microsoft.com/fwlink/?LinkId=733558 // for the documentation about the tasks.json format "version": "2.0.0", "tasks": [ { "label": "CMake build", "type": "shell", "command": "./compile.sh", "group": { "kind": "build", "isDefault": true }, "problemMatcher": [ "$gcc" ] }, { "label": "run", "type": "shell", "command": "./build/your_run_file", #!! change here for your config "group": { "kind": "build", "isDefault": true }, "problemMatcher": [ "$gcc" ] } ] }
而后使用Ctrl+Shift+P快捷键,而且在下拉菜单中选择>Tasks: Run Task,选择build或者run tasks就能够build并生成可执行文件。
这时可能会提示:
/bin/bash: ./compile.sh: Permission denied
The terminal process terminated with exit code: 126
错误,使用命令
sudo chmod 755 compile.sh
5.debug程序
因为使用cmake来build程序,已经在compile.sh中加入了debug信息-DCMAKE_BUILD_TYPE=Debug
点击VSCode左侧的小虫子按钮,添加一个新的configuration,选择C++(GDB/LLDB)。这时产生一个launch.json文件,添加
{ // Use IntelliSense to learn about possible attributes. // Hover to view descriptions of existing attributes. // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 "version": "0.2.0", "configurations": [ { "name": "(gdb) Launch", "type": "cppdbg", "request": "launch", "program": "${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,就能够debug了。