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": "(gdb) Launch cltester",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/build/clsdk/bin/cltester",
            "args": [
                "-v",
                "-s",
                "depositspend.wasm",
                "depositspend-debug.wasm",
                "-s",
                "clsdk/contracts/token.wasm",
                "clsdk/contracts/token-debug.wasm",
                "test-depositspend.wasm"
            ],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}/build",
            "environment": [],
            "externalConsole": false,
            // Q: Why don't we use "sourceFileMap" here?
            // A: It appears to work at first, but then things fall apart when
            //    you set breakpoints in some of the mapped files.
            //    "set substitute-path" (below) works better.
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                },
                {
                    "description": "Ignore timer signal",
                    "text": "handle SIG34 noprint",
                    "ignoreFailures": false
                },
                {
                    "description": "Map sources",
                    "text": "set substitute-path clsdk-wasi-sdk: ${workspaceFolder}/build/wasi-sdk",
                    "ignoreFailures": false
                },
                {
                    "description": "Map sources",
                    "text": "set substitute-path clsdk: ${workspaceFolder}/build/clsdk",
                    "ignoreFailures": false
                }
            ]
        }
    ]
}