| /* |
| * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2007, 2008 Red Hat, Inc. |
| * 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. |
| * |
| */ |
| |
| #ifndef CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP |
| #define CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP |
| |
| #include "memory/allocation.hpp" |
| |
| class SignatureHandler { |
| public: |
| static SignatureHandler *from_handlerAddr(address handlerAddr) { |
| return (SignatureHandler *) handlerAddr; |
| } |
| |
| public: |
| ffi_cif* cif() const { |
| return (ffi_cif *) this; |
| } |
| |
| int argument_count() const { |
| return cif()->nargs; |
| } |
| |
| ffi_type** argument_types() const { |
| return (ffi_type**) (cif() + 1); |
| } |
| |
| ffi_type* argument_type(int i) const { |
| return argument_types()[i]; |
| } |
| |
| ffi_type* result_type() const { |
| return *(argument_types() + argument_count()); |
| } |
| |
| protected: |
| friend class InterpreterRuntime; |
| friend class SignatureHandlerLibrary; |
| |
| void finalize(); |
| }; |
| |
| class SignatureHandlerGeneratorBase : public NativeSignatureIterator { |
| private: |
| ffi_cif* _cif; |
| |
| protected: |
| SignatureHandlerGeneratorBase(const methodHandle& method, ffi_cif *cif) |
| : NativeSignatureIterator(method), _cif(cif) { |
| _cif->nargs = 0; |
| } |
| |
| ffi_cif *cif() const { |
| return _cif; |
| } |
| |
| public: |
| void generate(uint64_t fingerprint); |
| |
| private: |
| void pass_int(); |
| void pass_long(); |
| void pass_float(); |
| void pass_double(); |
| void pass_object(); |
| |
| private: |
| void push(BasicType type); |
| virtual void push(intptr_t value) = 0; |
| }; |
| |
| class SignatureHandlerGenerator : public SignatureHandlerGeneratorBase { |
| private: |
| CodeBuffer* _cb; |
| |
| public: |
| SignatureHandlerGenerator(const methodHandle& method, CodeBuffer* buffer) |
| : SignatureHandlerGeneratorBase(method, (ffi_cif *) buffer->insts_end()), |
| _cb(buffer) { |
| _cb->set_insts_end((address) (cif() + 1)); |
| } |
| |
| private: |
| void push(intptr_t value) { |
| intptr_t *dst = (intptr_t *) _cb->insts_end(); |
| _cb->set_insts_end((address) (dst + 1)); |
| *dst = value; |
| } |
| }; |
| |
| class SlowSignatureHandlerGenerator : public SignatureHandlerGeneratorBase { |
| private: |
| intptr_t *_dst; |
| |
| public: |
| SlowSignatureHandlerGenerator(const methodHandle& method, intptr_t* buf) |
| : SignatureHandlerGeneratorBase(method, (ffi_cif *) buf) { |
| _dst = (intptr_t *) (cif() + 1); |
| } |
| |
| private: |
| void push(intptr_t value) { |
| *(_dst++) = value; |
| } |
| |
| public: |
| SignatureHandler *handler() const { |
| return (SignatureHandler *) cif(); |
| } |
| }; |
| |
| #endif // CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP |