hotspot/src/cpu/arm/vm/metaspaceShared_arm.cpp
changeset 46324 8764956ec928
parent 46323 d41bb2dcaeb8
child 46325 0fa9327949f8
--- a/hotspot/src/cpu/arm/vm/metaspaceShared_arm.cpp	Fri Mar 10 12:58:37 2017 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,99 +0,0 @@
-/*
- * Copyright (c) 2008, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include "precompiled.hpp"
-#include "asm/macroAssembler.hpp"
-#include "assembler_arm.inline.hpp"
-#include "memory/metaspaceShared.hpp"
-
-// Generate the self-patching vtable method:
-//
-// This method will be called (as any other Klass virtual method) with
-// the Klass itself as the first argument.  Example:
-//
-//      oop obj;
-//      int size = obj->klass()->oop_size(this);
-//
-// for which the virtual method call is Klass::oop_size();
-//
-// The dummy method is called with the Klass object as the first
-// operand, and an object as the second argument.
-//
-
-//=====================================================================
-
-// All of the dummy methods in the vtable are essentially identical,
-// differing only by an ordinal constant, and they bear no relationship
-// to the original method which the caller intended. Also, there needs
-// to be 'vtbl_list_size' instances of the vtable in order to
-// differentiate between the 'vtable_list_size' original Klass objects.
-
-#define __ masm->
-
-void MetaspaceShared::generate_vtable_methods(void** vtbl_list,
-                                                   void** vtable,
-                                                   char** md_top,
-                                                   char* md_end,
-                                                   char** mc_top,
-                                                   char* mc_end) {
-  intptr_t vtable_bytes = (num_virtuals * vtbl_list_size) * sizeof(void*);
-  *(intptr_t *)(*md_top) = vtable_bytes;
-  *md_top += sizeof(intptr_t);
-  void** dummy_vtable = (void**)*md_top;
-  *vtable = dummy_vtable;
-  *md_top += vtable_bytes;
-
-  CodeBuffer cb((unsigned char*)*mc_top, mc_end - *mc_top);
-  MacroAssembler* masm = new MacroAssembler(&cb);
-
-  for (int i = 0; i < vtbl_list_size; ++i) {
-    Label common_code;
-    for (int j = 0; j < num_virtuals; ++j) {
-      dummy_vtable[num_virtuals * i + j] = (void*) __ pc();
-      __ mov(Rtemp, j);  // Rtemp contains an index of a virtual method in the table
-      __ b(common_code);
-    }
-
-    InlinedAddress vtable_address((address)&vtbl_list[i]);
-    __ bind(common_code);
-    const Register tmp2 = AARCH64_ONLY(Rtemp2) NOT_AARCH64(R4);
-    assert_different_registers(Rtemp, tmp2);
-#ifndef AARCH64
-    __ push(tmp2);
-#endif // !AARCH64
-    // Do not use ldr_global since the code must be portable across all ARM architectures
-    __ ldr_literal(tmp2, vtable_address);
-    __ ldr(tmp2, Address(tmp2));                              // get correct vtable address
-    __ ldr(Rtemp, Address::indexed_ptr(tmp2, Rtemp));         // get real method pointer
-    __ str(tmp2, Address(R0));                                // update vtable. R0 = "this"
-#ifndef AARCH64
-    __ pop(tmp2);
-#endif // !AARCH64
-    __ jump(Rtemp);
-    __ bind_literal(vtable_address);
-  }
-
-  __ flush();
-  *mc_top = (char*) __ pc();
-}