[rfa:sparc/rfc] multi-arch SOFTWARE_SINGLE_STEP et.al.

[Andrew Cagney]

Andrew Cagney wrote:
> 
> Hello,
> 
> (I now remember why I kept avoiding  this one :-)
> 
> The attatched multi-arches SOFTWARE_SINGLE_STEP /
> SOFTWARE_SINGLE_STEP_P.  It also does a few other things so watch
> carefully :-)
> 
> For the sparc64 this multi-arches software_single_step.  Maintainer?
> Test on a solaris N+1 machine?

And sure enough it broke something :-/

For the sparc64 native, it was selecting software single-step but the
previous configuration wasn't.

So, for the maintainer.  What is correct for these cases?

	o	sparc32 cross
		was software single step

	o	sparc64 cross
		was software single step

	o	sparc64 (sol2) native
		was ptrace (hardware) single step

	o	sparc32 (sol2) native
		was ptrace (hardware) single step

This kind of highlights the current problems with software_single_step_p
:-)

	Andrew