1. 下载OTP源码
git clone git@github.com:erlang/otp.git && cd otp
2. 配置
./configure --enable-kernel-poll --enable-fips --enable-m64-build --with-dynamic-trace=systemtap
3. 以调试模式编译
make -j "$(grep -c "processor" /proc/cpuinfo)" TYPE=debug FLAVOR=smp
4. 安装VSCode插件
安装C/C++插件
安装Makefile插件
安装Remote - SSH插件(远程需要)
5. 在OTP根目录建立.vscode文件夹
- 调试配置文件launch.json
{
"version": "2.0.0",
"configurations": [
{
"name": "beam.smp",
"preLaunchTask": "build",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceRoot}/bin/x86_64-pc-linux-gnu/beam.debug.smp",
"args": ["--", "-root", "${workspaceRoot}", "-progname", "${workspaceRoot}/bin/cerl", "-debug", "--", "-home", "${HOME}", "--", "-name", "debug@127.0.0.1", "-setcookie", "erlang"],
"stopAtEntry": false,
"cwd": "${fileDirname}",
"environment": [{ "name": "BINDIR", "value": "${workspaceRoot}/bin/x86_64-pc-linux-gnu" }],
"externalConsole": false,
"MIMode": "gdb",
"setupCommands": [
{
"description": "enable etp commands",
"text": "source ${workspaceRoot}/erts/etc/unix/etp-commands",
"ignoreFailures": true
},
{
"description": "enable pretty print",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]
}
]
}
- 任务配置文件tasks.json
{
"version": "2.0.0",
"tasks": [
{
"label": "build",
"type": "shell",
"command": "make",
"args": ["TYPE=debug", "FLAVOR=smp"]
}
]
}
6. 按下F5进行调试
- 在你需要调试的地方打上断点
- 在终端输入你要调试的命令
- 在调试控制台输入
-exec source 你的OTP绝对路径/erts/etc/unix/etp-commands
启用etp命令
- 在调试控制台使用etp命令打印变量
-exec etp 参数
