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comparison src/cpu/zero/vm/interpreterRT_zero.hpp @ 1010:354d3184f6b2

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6890308: integrate zero assembler hotspot changes Reviewed-by: never Contributed-by: gbenson@redhat.com
author never
date Tue, 13 Oct 2009 12:04:21 -0700
parents
children c18cbe5936b8
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1009:03b336640699 1010:354d3184f6b2
1 /*
2 * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
3 * Copyright 2007, 2008 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 *
24 */
25
26 class SignatureHandler {
27 public:
28 static SignatureHandler *from_handlerAddr(address handlerAddr) {
29 return (SignatureHandler *) handlerAddr;
30 }
31
32 public:
33 ffi_cif* cif() const {
34 return (ffi_cif *) this;
35 }
36
37 int argument_count() const {
38 return cif()->nargs;
39 }
40
41 ffi_type** argument_types() const {
42 return (ffi_type**) (cif() + 1);
43 }
44
45 ffi_type* argument_type(int i) const {
46 return argument_types()[i];
47 }
48
49 ffi_type* result_type() const {
50 return *(argument_types() + argument_count());
51 }
52
53 protected:
54 friend class InterpreterRuntime;
55 friend class SignatureHandlerLibrary;
56
57 void finalize();
58 };
59
60 class SignatureHandlerGeneratorBase : public NativeSignatureIterator {
61 private:
62 ffi_cif* _cif;
63
64 protected:
65 SignatureHandlerGeneratorBase(methodHandle method, ffi_cif *cif)
66 : NativeSignatureIterator(method), _cif(cif) {
67 _cif->nargs = 0;
68 }
69
70 ffi_cif *cif() const {
71 return _cif;
72 }
73
74 public:
75 void generate(uint64_t fingerprint);
76
77 private:
78 void pass_int();
79 void pass_long();
80 void pass_float();
81 void pass_double();
82 void pass_object();
83
84 private:
85 void push(BasicType type);
86 virtual void push(intptr_t value) = 0;
87 };
88
89 class SignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
90 private:
91 CodeBuffer* _cb;
92
93 public:
94 SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer)
95 : SignatureHandlerGeneratorBase(method, (ffi_cif *) buffer->code_end()),
96 _cb(buffer) {
97 _cb->set_code_end((address) (cif() + 1));
98 }
99
100 private:
101 void push(intptr_t value) {
102 intptr_t *dst = (intptr_t *) _cb->code_end();
103 _cb->set_code_end((address) (dst + 1));
104 *dst = value;
105 }
106 };
107
108 class SlowSignatureHandlerGenerator : public SignatureHandlerGeneratorBase {
109 private:
110 intptr_t *_dst;
111
112 public:
113 SlowSignatureHandlerGenerator(methodHandle method, intptr_t* buf)
114 : SignatureHandlerGeneratorBase(method, (ffi_cif *) buf) {
115 _dst = (intptr_t *) (cif() + 1);
116 }
117
118 private:
119 void push(intptr_t value) {
120 *(_dst++) = value;
121 }
122
123 public:
124 SignatureHandler *handler() const {
125 return (SignatureHandler *) cif();
126 }
127 };