Re: MDI: testsuite support

["Maciej W. Rozycki" <macro@mips.com>]

On Tue, 26 Feb 2008, Daniel Jacobowitz wrote:

> >  Note I mean these commands are really obscure and are used things like to 
> > peek or poke at TLB entries and cache lines "through a back door", so I 
> > gather whoever is skilled enough to dare would know what they are doing 
> > and get used to whatever the commands are called.  In fact hardly anybody 
> > uses them as proved by an embarrasing bug I fixed a while ago somewhere in 
> > this area. ;-)  They are occasionally useful for stuff like debugging 
> > system bringup issues, weird cache corruption problems and suchlike.
> 
> This is the sort of thing that makes me wish all our targets used
> "target remote".  MDI isn't the only target interface that offers this
> sort of thing, and it would be nice to have the enforced abstraction
> barrier; that would make it easier to support the same thing,
> consistently, on other targets.  Anyway, an example for MDI will
> be almost as useful in practice.

 I am certainly not against it, but it would take a while.  Porting all 
the stuff the MDI target supports to the remote framework is considerable 
amount of work and it would be nice to have something working till then, 
for a reference e.g. to compare regression test results against if nothing 
else.

  Maciej