launch.json

{
    // 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": "Build ${file} with cobc/cobst, debug with debugServer",
            "type": "node",
            "request": "launch",
            "skipFiles": ["<node_internals>/**"],
            "preLaunchTask": "make",
            "program": "${workspaceRoot}/optfde01",
            "cwd": "${workspaceFolder}",
            "debugServer": 4711
        },
        {
            "name": "cobc/cobst build and debug",
            "type": "cbl-gdb",
            "request": "launch",
            "preLaunchTask": "make",
            "program": "${workspaceFolder}/optfde01",
            "cwd": "${workspaceFolder}",
            "arguments": ""
        }
    ]
}