1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/zero/vm/interpreterRT_zero.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,134 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2007, 2008 Red Hat, Inc.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +#ifndef CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP
1.30 +#define CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP
1.31 +
1.32 +#include "memory/allocation.hpp"
1.33 +
1.34 +class SignatureHandler {
1.35 + public:
1.36 + static SignatureHandler *from_handlerAddr(address handlerAddr) {
1.37 + return (SignatureHandler *) handlerAddr;
1.38 + }
1.39 +
1.40 + public:
1.41 + ffi_cif* cif() const {
1.42 + return (ffi_cif *) this;
1.43 + }
1.44 +
1.45 + int argument_count() const {
1.46 + return cif()->nargs;
1.47 + }
1.48 +
1.49 + ffi_type** argument_types() const {
1.50 + return (ffi_type**) (cif() + 1);
1.51 + }
1.52 +
1.53 + ffi_type* argument_type(int i) const {
1.54 + return argument_types()[i];
1.55 + }
1.56 +
1.57 + ffi_type* result_type() const {
1.58 + return *(argument_types() + argument_count());
1.59 + }
1.60 +
1.61 + protected:
1.62 + friend class InterpreterRuntime;
1.63 + friend class SignatureHandlerLibrary;
1.64 +
1.65 + void finalize();
1.66 +};
1.67 +
1.68 +class SignatureHandlerGeneratorBase : public NativeSignatureIterator {
1.69 + private:
1.70 + ffi_cif* _cif;
1.71 +
1.72 + protected:
1.73 + SignatureHandlerGeneratorBase(methodHandle method, ffi_cif *cif)
1.74 + : NativeSignatureIterator(method), _cif(cif) {
1.75 + _cif->nargs = 0;
1.76 + }
1.77 +
1.78 + ffi_cif *cif() const {
1.79 + return _cif;
1.80 + }
1.81 +
1.82 + public:
1.83 + void generate(uint64_t fingerprint);
1.84 +
1.85 + private:
1.86 + void pass_int();
1.87 + void pass_long();
1.88 + void pass_float();
1.89 + void pass_double();
1.90 + void pass_object();
1.91 +
1.92 + private:
1.93 + void push(BasicType type);
1.94 + virtual void push(intptr_t value) = 0;
1.95 +};
1.96 +
1.97 +class SignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
1.98 + private:
1.99 + CodeBuffer* _cb;
1.100 +
1.101 + public:
1.102 + SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer)
1.103 + : SignatureHandlerGeneratorBase(method, (ffi_cif *) buffer->insts_end()),
1.104 + _cb(buffer) {
1.105 + _cb->set_insts_end((address) (cif() + 1));
1.106 + }
1.107 +
1.108 + private:
1.109 + void push(intptr_t value) {
1.110 + intptr_t *dst = (intptr_t *) _cb->insts_end();
1.111 + _cb->set_insts_end((address) (dst + 1));
1.112 + *dst = value;
1.113 + }
1.114 +};
1.115 +
1.116 +class SlowSignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
1.117 + private:
1.118 + intptr_t *_dst;
1.119 +
1.120 + public:
1.121 + SlowSignatureHandlerGenerator(methodHandle method, intptr_t* buf)
1.122 + : SignatureHandlerGeneratorBase(method, (ffi_cif *) buf) {
1.123 + _dst = (intptr_t *) (cif() + 1);
1.124 + }
1.125 +
1.126 + private:
1.127 + void push(intptr_t value) {
1.128 + *(_dst++) = value;
1.129 + }
1.130 +
1.131 + public:
1.132 + SignatureHandler *handler() const {
1.133 + return (SignatureHandler *) cif();
1.134 + }
1.135 +};
1.136 +
1.137 +#endif // CPU_ZERO_VM_INTERPRETERRT_ZERO_HPP
