New gdb 31 & 64 bit patches for S/390

[Andrew Cagney]

> Why are you trying to build this target ?,
> linux is the only elf abi compatible s390 target at the moment & probably
> will be for the
> forseeable future as OS/390's ABIs are very incompatible with linux'es abi.


Hmm, I tried to explain with:

> The reason for doing this is to ensure that the non linix specific parts
> of the s390 target really are native independant.  If you check the
> MAINTAINERS file you'll notice that all targets (with the exception of
> the HP/PA, which has no maintainer) can be built as a cross debugger.


Ensuring that this remains true is very important.  From the USER's point

of view, it is one of GDB's important features - remote/cross debugging 
just work.  From the GDB developers point of view, it is one of the 
things that make GDB maintanable.  You don't need an s390 to check that 
the change to s390-tdep.c is probably correct.

enjoy,
	Andrew