[Bug target/46655] invalid '.line 0' directive emitted with -g

[michael.haubenwallner at salomon dot at]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46655

--- Comment #14 from Michael Haubenwallner <michael.haubenwallner at salomon dot at> 2010-12-13 12:46:25 UTC ---
(In reply to comment #9)
> Is the 64K limit really new?  Is this really a change in AIX as or did
> something else change and start generating files referencing line numbers
> larger than 64K?
> 
> I believe the line number field in XCOFF is defined in /usr/include/linenum.h. 
> According to that file, in 32 bit mode, line numbers are represented by an
> unsigned short, whose maximum value is 65535.  In 64 bit mode, line numbers are
> represented by unsigned int.
> 
> I have not seen this error while bootstrapping GCC on AIX.  The error looks
> correct.  What else changed?

Update from IBM customer support:
Pseudo operation '.line' "works as designed".
However, the bounds checking was introduced in "AIX 6.1 TL04 SP07" and similar
SP's for other TL's.