Re: PATCH/RFC handle missing DW_AT_comp_dir attribute

Richard Earnshaw
2002-07-18T12:54:34Z

>
> Richard Earnshaw <rearnsha@arm.com> writes:
> > This problem was found by a colleague while using GDB with the ADS tools.
> >
> > These tools do not set the DW_AT_comp_dir attribute in a compilation unit
> > entry, so GDB will crash trying to reference a NULL pointer.

>
> Sorry --- how does this patch fix a GDB crash? GDB doesn't use BFD to
> read debugging information.

Ah, sorry, it was my understanding from Ian that it was in GDB.
Apparently the problem was seen in addr2line, and rather than a crash we
just got an empty filename (since the first argument passed to concat was
a NULL pointer).

R.