adding xptcstubs for sparcv9 (64bit). not part of build

xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_sparcv9_solaris.s

@@ -0,0 +1,67 @@
+/* -*- Mode: asm; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is mozilla.org code.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation. Portions created by Netscape are
+ * Copyright (C) 2001 Netscape Communications Corporation. All
+ * Rights Reserved.
+ * 
+ * Contributor(s): 
+ *   Stuart Parmenter <pavlov@netscape.com>
+ */
+
+        .global SharedStub
+
+/*
+    in the frame for the function that called SharedStub are the
+    rest of the parameters we need
+
+*/
+
+SharedStub:
+! we don't create a new frame yet, but work within the frame of the calling
+! function to give ourselves the other parameters we want
+
+        mov     %o0, %o1               ! shuffle the index up to 2nd place
+        mov     %i0, %o0               ! the original 'this'
+        add     %fp, 0x7ff + 136, %o2  ! previous stack top adjusted to the first argument slot (beyond 'this')
+
+! save off the original incoming parameters that arrived in 
+! registers, the ABI guarantees the space for us to do this
+        st      %i1, [%fp + 0x7ff + 136]
+        st      %i2, [%fp + 0x7ff + 144]
+        st      %i3, [%fp + 0x7ff + 152]
+        st      %i4, [%fp + 0x7ff + 160]
+        st      %i5, [%fp + 0x7ff + 168]
+! now we can build our own stack frame
+        save    %sp,-(128 + 64),%sp    ! room for the register window and
+                                       ! struct pointer, rounded up to 0 % 64
+! our function now appears to have been called
+! as SharedStub(nsISupports* that, PRUint32 index, PRUint32* args)
+! so we can just copy these through
+        
+        mov     %i0, %o0
+        mov     %i1, %o1
+        mov     %i2, %o2
+        call    PrepareAndDispatch
+        nop
+        mov     %o0,%i0             ! propogate return value
+        b .LL1
+        nop
+.LL1:
+        ret
+        restore
+
+       .size    SharedStub, .-SharedStub
+       .type    SharedStub, #function