--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/runtime/stubCodeGenerator.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 1997, 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 "asm/macroAssembler.inline.hpp"
+#include "code/codeCache.hpp"
+#include "compiler/disassembler.hpp"
+#include "oops/oop.inline.hpp"
+#include "prims/forte.hpp"
+#include "runtime/stubCodeGenerator.hpp"
+
+
+// Implementation of StubCodeDesc
+
+StubCodeDesc* StubCodeDesc::_list = NULL;
+bool          StubCodeDesc::_frozen = false;
+
+StubCodeDesc* StubCodeDesc::desc_for(address pc) {
+  StubCodeDesc* p = _list;
+  while (p != NULL && !p->contains(pc)) {
+    p = p->_next;
+  }
+  return p;
+}
+
+const char* StubCodeDesc::name_for(address pc) {
+  StubCodeDesc* p = desc_for(pc);
+  return p == NULL ? NULL : p->name();
+}
+
+
+void StubCodeDesc::freeze() {
+  assert(!_frozen, "repeated freeze operation");
+  _frozen = true;
+}
+
+void StubCodeDesc::print_on(outputStream* st) const {
+  st->print("%s", group());
+  st->print("::");
+  st->print("%s", name());
+  st->print(" [" INTPTR_FORMAT ", " INTPTR_FORMAT "[ (%d bytes)", p2i(begin()), p2i(end()), size_in_bytes());
+}
+
+// Implementation of StubCodeGenerator
+
+StubCodeGenerator::StubCodeGenerator(CodeBuffer* code, bool print_code) {
+  _masm = new MacroAssembler(code );
+  _print_code = PrintStubCode || print_code;
+}
+
+StubCodeGenerator::~StubCodeGenerator() {
+  if (_print_code) {
+    CodeBuffer* cbuf = _masm->code();
+    CodeBlob*   blob = CodeCache::find_blob_unsafe(cbuf->insts()->start());
+    if (blob != NULL) {
+      blob->set_strings(cbuf->strings());
+    }
+  }
+}
+
+void StubCodeGenerator::stub_prolog(StubCodeDesc* cdesc) {
+  // default implementation - do nothing
+}
+
+void StubCodeGenerator::stub_epilog(StubCodeDesc* cdesc) {
+  if (_print_code) {
+    cdesc->print();
+    tty->cr();
+    Disassembler::decode(cdesc->begin(), cdesc->end());
+    tty->cr();
+  }
+}
+
+
+// Implementation of CodeMark
+
+StubCodeMark::StubCodeMark(StubCodeGenerator* cgen, const char* group, const char* name) {
+  _cgen  = cgen;
+  _cdesc = new StubCodeDesc(group, name, _cgen->assembler()->pc());
+  _cgen->stub_prolog(_cdesc);
+  // define the stub's beginning (= entry point) to be after the prolog:
+  _cdesc->set_begin(_cgen->assembler()->pc());
+}
+
+StubCodeMark::~StubCodeMark() {
+  _cgen->assembler()->flush();
+  _cdesc->set_end(_cgen->assembler()->pc());
+  assert(StubCodeDesc::_list == _cdesc, "expected order on list");
+  _cgen->stub_epilog(_cdesc);
+  Forte::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end());
+
+  if (JvmtiExport::should_post_dynamic_code_generated()) {
+    JvmtiExport::post_dynamic_code_generated(_cdesc->name(), _cdesc->begin(), _cdesc->end());
+  }
+}