Re: Powerpc and software single step

[Jimi Xenidis <jimix@watson.ibm.com>]

>>>>> "AC" == Andrew Cagney <ac131313@redhat.com> writes:

 AC> It may be possible to wrap software single step's predicate in a 
 AC> function that, like the remote protocol, returns the predicate, or 
 AC> always false.
 >> 
 >> It is my understanding that the predicate is use to conditionally wrap
 >> the "vector" is it usefull for the predicate to be anything more then
 >> a boolean in gdbarch?

 AC> Sorry, I don't understand your question.

Ok, its probably my lingo shortcommings.
the ppc trees still use the olf MACROS:
  SOFTWARE_SINGLE_STEP_P (the predicate?)
  SOFTWARE_SINGLE_STEP   (the function which is the gdbarch "vector")

since the eval of the predicate is checked before the function is
called I opted to toy with the predicate in is macro form to decide
its value.  Unfortunately in gdbarch land the predicate
simply tests for the vector being !=NULL.

So my quiestion is really about introducing a boolean to gdbarch that
can changed by some user action (such as set).  But if it is the "test
then call" itself that you are objecting to then obviously this will
not solve that.

-JX