1 /*
 2  * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 #ifndef SHARE_VM_PRIMS_UNIVERSALNATIVEINVOKER_HPP
25 #define SHARE_VM_PRIMS_UNIVERSALNATIVEINVOKER_HPP
26 
27 #include "runtime/stubCodeGenerator.hpp"
28 #include "prims/foreign_globals.hpp"
29 
30 class ProgrammableInvoker: AllStatic {
31 private:
32   static constexpr CodeBuffer::csize_t native_invoker_size = 1024;
33 
34   class Generator : StubCodeGenerator {
35   private:
36     const ABIDescriptor* _abi;
37     const BufferLayout* _layout;
38   public:
39     Generator(CodeBuffer* code, const ABIDescriptor* abi, const BufferLayout* layout);
40 
41     void generate();
42   };
43 public:
44   using Stub = void(*)(address);
45 
46   static void invoke_native(Stub stub, address buff, JavaThread* thread);
47   static address generate_adapter(jobject abi, jobject layout);
48 };
49 
50 #endif // SHARE_VM_PRIMS_UNIVERSALNATIVEINVOKER_HPP