[patch/rfc] Deprecate PUSH_DUMMY_FRAME

[Andrew Cagney]

Hello,

This patch gives the generic dummy frame code another little prod 
towards becomming the only inferior function call mechanism.

The comment that goes with the call:

+      /* FIXME: cagney/2003-02-26: Step zero of this little tinker is
+      to extract the generic dummy frame code from the architecture
+      vector.  Hence this direct call.
+
+      A follow-on change is to modify this interface so that it takes
+      thread OR frame OR tpid as a parameter, and returns a dummy
+      frame handle.  The handle can then be used further down as a
+      parameter SAVE_DUMMY_FRAME_TOS.  Hmm, thinking about it, since
+      everything is ment to be using generic dummy frames, why not
+      even move some of the dummy frame code to here - do a regcache
+      dup and then pass the duped regcache, along with all the other
+      stuff, at one single point.
+
+      In fact, you can even save the structure's return address in the
+      dummy frame and fix one of those nasty lost struct return edge
+      conditions.  */
+      generic_push_dummy_frame ();

should explain where this is going.

I'll commit in a day or so,
Andrew
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