re PR libgcj/21692 (unexpected java.lang.NoClassDefFoundError)

	PR libgcj/21692
	* sysdep/pa/descriptor.h: New file.
	* configure.host: Use sysdep/pa/descriptor.h on hppa*-*.

From-SVN: r103306

libjava/ChangeLog

+2005-08-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+	PR libgcj/21692
+	* sysdep/pa/descriptor.h: New file.
+	* configure.host: Use sysdep/pa/descriptor.h on hppa*-*.
+
 2005-08-19  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	* Makefile.am (extra_ldflags_libjava): New variable to

libjava/configure.host

@@ -278,10 +278,14 @@ case "${host}" in
 esac
 
 case "${host}" in
-  ia64-* | hppa*-*)
+  ia64-*)
 	descriptor_h=sysdep/descriptor-y.h
 	;;
 
+  hppa*-*)
+	descriptor_h=sysdep/pa/descriptor.h
+	;;
+
   rs6000-* | powerpc*-*)
 	descriptor_h=sysdep/powerpc/descriptor.h
 	;;

libjava/sysdep/pa/descriptor.h

+// Given a function pointer, return the code address.
+// If the plabel bit is set, mask it off and return the code from the
+// first word of the function descriptor.  Otherwise, the function
+// pointer is the code address.
+
+#define UNWRAP_FUNCTION_DESCRIPTOR(X) \
+  (((unsigned int)(X)) & 2 ? *(void **)(((unsigned int)(X)) & ~3) : (X))