Debugging X with GDB

[Richard Stallman]

    That would be indeed useful, but it seems that setting breakpoints on
    symbols that will become available in the future is also working
    correctly.  The difference is that now I'm debugging a newer version of
    the X server that doesn't confuse the debugger by re-implementing a
    custom ELF loader.

That is good, but GDB knew to recognize that the driver file was being
loaded even with old X server.  Given that it could recognize the
file, it could also offer a command to specify "stop the program after
loading file FOO".  That will be useful when strange things are
happening.