My VS Code tasks for Free Pascal programs on Mac.

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": [
    {
      "type": "lldb",
      "request": "launch",
      "name": "LLDB Debugger",
      "program": "${workspaceFolder}/${fileBasenameNoExtension}",
      "args": [],
      "cwd": "${workspaceFolder}",
      "terminal": "integrated",
      "preLaunchTask": "fpc: Build Debug",
      "postDebugTask": "fpc: Clean Files"
    }
  ]
}

settings.json

{
    "omnipascal.defaultDevelopmentEnvironment": "FreePascal",
    "omnipascal.delphiInstallationPath": "/usr/local/bin/fpc",
    "omnipascal.freePascalSourcePath": "/home/bee/fpc-src/",
    //"[objectpascal]": {},

    "editor.fontFamily": "FiraCode-Light",
    "editor.fontSize": 12,
    "editor.tabSize": 2,
    "editor.rulers": [120],
    "editor.wordWrapColumn": 120,
    "editor.fontLigatures": true,
    "editor.renderLineHighlight": "all",

    "terminal.integrated.fontSize": 12,
    "terminal.integrated.cursorBlinking": true,
    "terminal.integrated.cursorStyle": "line",

    "telemetry.enableTelemetry": false,
    "telemetry.enableCrashReporter": false,
}

tasks.json

{
  // See https://go.microsoft.com/fwlink/?LinkId=733558
  // for the documentation about the tasks.json format
  "version": "2.0.0",
  "tasks": [
    { // shortcut: cmd+shift+B (run build task)
      "label"  : "fpc: Build Debug",
      "type"   : "shell",
      "group": {
        "kind": "build",
        "isDefault": true
      },
      "command": "fpc",
      "args": [
        "${file}",      // source code file
        "-Px86_64",     // target platform 64-bit
        "-Mobjfpc",     // object pascal mode
        "-S2cahi",      // pascal syntax setting
        "-Croti",       // generated code setting
        "-O1",          // code optimization setting
        "-glpsw3",      // debug info setting
        "-godwarfcpp",  // dwarf mode setting
        "-v"            // verbose message
      ],
      "problemMatcher": []
    },
    { // shortcut: none
      "label"  : "fpc: Build Release",
      "type"   : "shell",
      "group"  : "build",
      "command": "fpc",
      "args": [
        "${file}",      // source code file
        "-Px86_64",     // target platform 64-bit
        "-Mobjfpc",     // object pascal mode
        "-S2cahi",      // pascal syntax setting
        "-Croti",       // generated code setting
        "-O3",          // code optimization setting
        "-XXs",         // executable setting
        "-v"            // verbose message
      ],
      "problemMatcher": []
    },
    { // shortcut: none
      "label": "fpc: Syntax Check",
      "type": "shell",
      "group": "build",
      "command": "fpc",
      "args": [
        "${file}",      // source code file
        "-Px86_64",     // target platform 64-bit
        "-Mobjfpc",     // object pascal mode
        "-S2cahi",      // pascal syntax setting
        "-s",           // syntax check mode
        "-v"            // verbose message
      ],
      "problemMatcher": []
    },
    { // shortcut: cmd+shift+R (run test task)
      "label": "fpc: Execute Binary",
      "type": "shell",
      "group": {
        "kind": "test",
        "isDefault": true
      },
      "command": "./${fileBasenameNoExtension}",
      "args": [],
      "problemMatcher": []
    },
    { // shortcut: none
      "label": "fpc: Clean Files",
      "type": "shell",
      "command": "rm",
      "args": [
        "${fileBasenameNoExtension}",  // executable file
        "${fileDirname}/*.a",          // generated linker file
        "${fileDirname}/*.o",          // generated object file
        "${fileDirname}/*.s",          // generated assembler file
        "${fileDirname}/*.ppu",        // generated unit file
        "${fileDirname}/*.dwarf",      // generated dwarf debug file
        "link.res",                    // generated resource file
        "ppas.sh",                     // generated build script file
        "ppaslink.sh"                  // generated build script file
      ],
      "problemMatcher": []
    }
  ]
}