+
+/* This assumes that frame_address is the value of SP_REGNUM before
+ the dummy frame was pushed. The only known machine for which this
+ isn't true is the 29k, which doesn't use ON_STACK. Machines for
+ which it isn't true who want to put stack dummies on the stack
+ could provide their own PC_IN_CALL_DUMMY, or perhaps this macro
+ could be re-written to check for the end of the stack instead
+ (using the target_ops->sections). Are there user programs, libraries,
+ kernel routines, etc. which also execute on the stack? If so, the
+ latter would be a bad idea. */
+