gas debugging info vs cpp

[Zack Weinberg]

Roland McGrath <roland@redhat.com> writes:

> Conversely, cpp under -lang-asm can start emitting .file and .line
> directives instead of # lines.  However, the gas manual says that
> .file and .line directives are only recognized for compatibility and
> might go away.  What's the story with that?  For cpp to get such a
> change, it would be important to be sure that all past and future
> assemblers will grok it properly.

By the way, I'm happy to entertain changes to cpplib that would make
it more useful for preprocessing assembly language.  But you have to
tell me exactly what you need from it.

zw