Debugging failed under vscode Ubuntu, unable to open libc-start. C raise. C, etc

    sudo apt install glibc-source
cd /usr/src/glibc/
sudo tar -xvf glibc-[VERSION].tar.xz
      add the following content to. Vscode/launch.json in the vscode folder: 

      "sourceFileMap": {
      "/build/glibc-S7xCS9": "/usr/src/glibc"
}

      Pay attention to the modification  S& xCS9   Is the glibc file name that appears in the error prompt.