What's the proper way to debug D programs with GDB?

[Robert Clipsham]

On 19/03/10 00:34, Bernard Helyer wrote:
> http://omploader.org/iM3ZudA
>
> There you go. D2, run build.debug.sh to build. Modify the script to add
> options and the like. Built with `-gc` list _Dmain or break _Dmain
> doesn't work, if you force a segfault (remove the comments from the
> first few lines of ator.main and compile with -noboundscheck to cause
> one) bt doesn't work, etc, etc.

Thanks! I've managed to work this down to a 2 line test case:
----
void function() myfunc;
void main(){}
----
Which errors with:
----
Die: DW_TAG_padding (abbrev = 0, offset = 0)
         has children: FALSE
         attributes:
Dwarf Error: Cannot find type of die [in module /tmp/test]
----

Compile with either dmd -gc test.d or dmd -g test.d. I'll spend some 
more time with it now and see if I can figure out a cause so we can give 
a more useful bug report, if not I'll open a bug as is. If anyone else 
is getting different errors from gdb when using -gc, let me know and I 
can narrow them down too.