"wsl" "/usr/bin/gdb-multiarch --interpreter=mi" No such file or directory

Environment

• OS and version: Microsoft Windows 11 10.0.22631 Build 22631
• VS Code: 1.100.2
• C/C++ extension: 1.25.3
• OS and version of remote machine (if applicable): WSL - Ubuntu 24.04.1 LTS
• GDB / LLDB version: GNU gdb (Ubuntu 15.0.50.20240403-0ubuntu1) 15.0.50.20240403-git

Bug Summary and Steps to Reproduce

Bug Summary:
From the Debug Console:

Starting: "wsl" "/usr/bin/gdb-multiarch --interpreter=mi"
/bin/bash: line 1: /usr/bin/gdb-multiarch --interpreter=mi: No such file or directory
"wsl" exited with code 127 (0x7F).

This appears to be due to that fact that VSCode passes "/usr/bin/gdb-multiarch --interpreter=mi" as a single argument and "/usr/bin/gdb-multiarch --interpreter=mi" is not a file.

Steps to reproduce:

1. Create launch.json
2. Start debugger
3. Check Debug Console for error

Debugger Configurations

{
    // 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 test",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceRoot}/build/out/test",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "miDebuggerServerAddress": "localhost:1234",
            "miDebuggerPath": "/usr/bin/gdb-multiarch",
            "pipeTransport": {
                "pipeProgram": "wsl",
                "pipeArgs": [],
                "debuggerPath": "/usr/bin/gdb-multiarch"
            },
            "sourceFileMap":{
                "/mnt/c": "C:\\"
            }
        }
    ]
}

Debugger Logs

Starting: "wsl"  "/usr/bin/gdb-multiarch --interpreter=mi"
/bin/bash: line 1: /usr/bin/gdb-multiarch --interpreter=mi: No such file or directory
"wsl" exited with code 127 (0x7F).

Other Extensions

No response

Additional Information

No response

Start with the pipeTransport configuration and the debugger launch log showing the wsl command and its quoted arguments. Reproduce the failure with the provided launch.json, then trace how the debugger command is assembled and passed to WSL. Done means WSL launches /usr/bin/gdb-multiarch with --interpreter=mi as a separate argument.