diff src/cpu/sparc/vm/methodHandles_sparc.cpp @ 710:e5b0439ef4ae

6655638: dynamic languages need method handles Summary: initial implementation, with known omissions (x86/64, sparc, compiler optim., c-oops, C++ interp.) Reviewed-by: kvn, twisti, never
author jrose
date Wed, 08 Apr 2009 10:56:49 -0700
parents
children c640000b7cc1
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cpu/sparc/vm/methodHandles_sparc.cpp	Wed Apr 08 10:56:49 2009 -0700
@@ -0,0 +1,70 @@
+/*
+ * Copyright 1997-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_methodHandles_sparc.cpp.incl"
+
+#define __ _masm->
+
+address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm,
+                                                address interpreted_entry) {
+  __ align(wordSize);
+  address target = __ pc() + sizeof(Data);
+  while (__ pc() < target) {
+    __ nop();
+    __ align(wordSize);
+  }
+
+  MethodHandleEntry* me = (MethodHandleEntry*) __ pc();
+  me->set_end_address(__ pc());         // set a temporary end_address
+  me->set_from_interpreted_entry(interpreted_entry);
+  me->set_type_checking_entry(NULL);
+
+  return (address) me;
+}
+
+MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm,
+                                                address start_addr) {
+  MethodHandleEntry* me = (MethodHandleEntry*) start_addr;
+  assert(me->end_address() == start_addr, "valid ME");
+
+  // Fill in the real end_address:
+  __ align(wordSize);
+  me->set_end_address(__ pc());
+
+  return me;
+}
+
+
+// Code generation
+address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) {
+  ShouldNotReachHere(); //NYI, 6815692
+  return NULL;
+}
+
+// Generate an "entry" field for a method handle.
+// This determines how the method handle will respond to calls.
+void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) {
+  ShouldNotReachHere(); //NYI, 6815692
+}