[Info-vax] DEBUG issues

[John Reagan]

On Wednesday, May 10, 2023 at 4:10:54 AM UTC-4, Ian Miller wrote:
> On Tuesday, May 9, 2023 at 11:12:57 PM UTC+1, Single Stage to Orbit wrote: 
> > So I dug out my old code from aeons ago and put them to the test on 
> > X86_64's C, Pascal and Fortran compilers. 
> > 
> > C hasn't aged well - something for me to sort :-D 
> > Pascal, most programs were fine, but see my notes later on in this e- 
> > mail. 
> > Fortran - beautiful. Works a treat 
> > 
> > I needed to debug one of my old Pascal programs. so I issued the the 
> > following to compile, link and run with DEBUG: 
> > 
> > $ pas/debug/noopt rec.pas 
> > $ link/debug rec 
> > $ run rec 
> > %DEBUG-I-INFODWARF, error reading Dwarf info: user-defined attribute 
> > code: 2134 
> > %DEBUG-I-INFODWARF, error reading Dwarf info: unrecognized attribute 
> > code: 88 
> > %DEBUG-I-INFODWARF, error reading Dwarf info: end-of-list attribute 
> > paired with non-EOL form 
> > 
> > OpenVMS x86-64 Debug64 Version V9.2-001 
> > 
> > %DEBUG-I-INITIAL, Language: UNKNOWN, Module: SHARE$DCL_FIXUP8 
> > 
> > Strange. What did I get wrong? Any magic incantions I need to utter? 
> > 
> > Thanks, 
> > Alex 
> > -- 
> > Tactical Nuclear Kittens
> Some PASCAL & DEBUG issues reported on the VSI forums which John R has acknowledged. Report this one and await a fix.
The LLVM backend generates some additional DWARF tags that the debugger was not expecting.  Most can be ignored but we
need to handle a few of them.  The debugger in the upcoming V9.2-1 release will be much quieter and better.

That said, we're still working on Pascal (and others) to get parity on debug support between Itanium and x86.