[PATCH, driver] -Wl, passing empty strings to ld

[Paolo Bonzini]

On 04/15/2010 05:34 AM, Jim Wilson wrote:
> The problem here is that the gcc driver is parsing the invalid -Wl,
> options and ending up with empty strings "" which it then passes on to
> ld as input file names.  ld fails to open a file named "", and then
> prints an error that contains the string "".  All very useless, and very
> confusing if you have a 1000+ character long link command and can't
> figure out what is wrong.

What if an ld option makes sense with an empty argument, e.g. -Wl,-h, or 
-Wl,-l, ?  It's a borderline case, I know, and I suppose you can do 
-Xlinker '', but it seems like an arbitrary limitation for an option 
that does pass-through by definition.

Paolo