Re: GDB gnats: c++ bugs

[Rick Moseley <rmoseley at redhat dot com>]

Rick Moseley wrote:
> Jan Kratochvil wrote:
> > Hi Sami,
> >
> > On Tue, 26 Aug 2008 17:14:19 +0200, Sami Wagiaalla wrote:
> >  
> > > There are more bugs of course but these are the ones I'll be looking 
> > > at  for now.
> > >     
> >
> >   When you are at it there are also:
> > KFAIL: gdb.cp/templates.exp: constructor breakpoint (PRMS: gdb/1062)
> > KFAIL: gdb.cp/templates.exp: destructor breakpoint (PRMS: gdb/1112)
> >   
> Tom had me do a search of the gdb bugzilla for all C++ bugs with 
> "ptype" errors and 1112 popped up on that list.  I'm also looking at 
> the following to verify they are all still valid since most were 
> posted > 3 years ago:
>
> 1111 - ptype prints return value for constructors in templated classes
>
> 1112 - can't breakpoint in  destructor
>
> 1113 - ptype claims that destructors take an int arg
>
> 1593 - problem with nested namespaces
                This appears to be fixed in current versions of 
gcc(4.1.2-33) and gdb(6.6-45).
> 1734 - gdb does not store an empty class
>
> 1783/2271/2273(all seem to be same) - gdb can't lookup class typedef 
> when in methods of class
>    *NOTE - Jim Ingham filed 1783 with a lot of detail and leaves this 
> ominous note:
>          "Not sure how to fix this without breaking other legitimate 
> cases of namespace lookup, however"
>
> 1817 - double-colon not understood in typecast
>
> There are also a couple of bugs in the gcc data base concerning gdb:
>
> 7932 - Emit debug information about non-type templates
>
> 30161 - gcc should generate dwarf info about template.
>
>
> I have worked through all of the gdb bugs, except 1593, verifying they 
> are all still around.  I have yet to look at the gcc ones, not sure 
> yet if there is any connection between those 2 and some of gdb bugs.
>
> I'll try to come up with "finger in the breeze" estimates tomorrow.
>
> Rick