如何利用 VSCode 的 Time Travel 调试功能记录和回放程序状态？

rr

rr

rr

rr

C/C++

launch.json

cppdbg

miDebuggerPath

rr

miDebuggerArgs

rr

record

replay

rr

js-debug

Debugger for Chrome

rr

rr

sudo apt install rr

C/C++

launch.json

.vscode/launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "rr Record and Debug",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/your_executable", // 替换为你的可执行文件路径
            "args": [],
            "stopAtEntry": true,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "miDebuggerPath": "/usr/bin/rr", // rr的安装路径
            "miDebuggerArgs": ["record", "${workspaceFolder}/your_executable", "arg1", "arg2"], // record模式，后面跟你的程序和参数
            "setupCommands": [
                {
                    "description": "Enable pretty printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "build" // 如果需要，可以添加一个构建任务
        },
        {
            "name": "rr Replay and Debug",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/your_executable", // 同上，可执行文件路径
            "args": [],
            "stopAtEntry": true,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "miDebuggerPath": "/usr/bin/rr",
            "miDebuggerArgs": ["replay", "-h", "localhost", "-p", "1234"], // replay模式，-h -p 指定rr gdbserver的地址和端口
            "setupCommands": [
                {
                    "description": "Enable pretty printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "postDebugTask": "cleanup_rr_trace" // 比如删除trace文件
        }
    ]
}