Mercurial > hg > truffle
annotate src/cpu/zero/vm/interpreterRT_zero.cpp @ 5736:915952ed97c0
fixed minor layout bug
author | Katrin Strassl <k.strassl@gmx.net> |
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date | Wed, 27 Jun 2012 11:48:26 +0200 |
parents | f95d63e2154a |
children | da91efe96a93 |
rev | line source |
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1010 | 1 /* |
1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
1379 | 3 * Copyright 2007, 2008, 2010 Red Hat, Inc. |
1010 | 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 * | |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
1010 | 23 * |
24 */ | |
25 | |
1972 | 26 #include "precompiled.hpp" |
27 #include "interpreter/interpreter.hpp" | |
28 #include "interpreter/interpreterRuntime.hpp" | |
29 #include "memory/allocation.inline.hpp" | |
30 #include "memory/universe.inline.hpp" | |
31 #include "oops/methodOop.hpp" | |
32 #include "oops/oop.inline.hpp" | |
33 #include "runtime/handles.inline.hpp" | |
34 #include "runtime/icache.hpp" | |
35 #include "runtime/interfaceSupport.hpp" | |
36 #include "runtime/signature.hpp" | |
37 #include "stack_zero.inline.hpp" | |
1010 | 38 |
39 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_int() { | |
40 push(T_INT); | |
41 _cif->nargs++; | |
42 } | |
43 | |
44 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_long() { | |
45 push(T_LONG); | |
46 _cif->nargs++; | |
47 } | |
48 | |
49 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_float() { | |
50 push(T_FLOAT); | |
51 _cif->nargs++; | |
52 } | |
53 | |
54 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_double() { | |
55 push(T_DOUBLE); | |
56 _cif->nargs++; | |
57 } | |
58 | |
59 void InterpreterRuntime::SignatureHandlerGeneratorBase::pass_object() { | |
60 push(T_OBJECT); | |
61 _cif->nargs++; | |
62 } | |
63 | |
64 void InterpreterRuntime::SignatureHandlerGeneratorBase::push(BasicType type) { | |
65 ffi_type *ftype; | |
66 switch (type) { | |
67 case T_VOID: | |
68 ftype = &ffi_type_void; | |
69 break; | |
70 | |
71 case T_BOOLEAN: | |
72 ftype = &ffi_type_uint8; | |
73 break; | |
74 | |
75 case T_CHAR: | |
76 ftype = &ffi_type_uint16; | |
77 break; | |
78 | |
79 case T_BYTE: | |
80 ftype = &ffi_type_sint8; | |
81 break; | |
82 | |
83 case T_SHORT: | |
84 ftype = &ffi_type_sint16; | |
85 break; | |
86 | |
87 case T_INT: | |
88 ftype = &ffi_type_sint32; | |
89 break; | |
90 | |
91 case T_LONG: | |
92 ftype = &ffi_type_sint64; | |
93 break; | |
94 | |
95 case T_FLOAT: | |
96 ftype = &ffi_type_float; | |
97 break; | |
98 | |
99 case T_DOUBLE: | |
100 ftype = &ffi_type_double; | |
101 break; | |
102 | |
103 case T_OBJECT: | |
104 case T_ARRAY: | |
105 ftype = &ffi_type_pointer; | |
106 break; | |
107 | |
108 default: | |
109 ShouldNotReachHere(); | |
110 } | |
111 push((intptr_t) ftype); | |
112 } | |
113 | |
114 // For fast signature handlers the "signature handler" is generated | |
115 // into a temporary buffer. It is then copied to its final location, | |
116 // and pd_set_handler is called on it. We have this two stage thing | |
117 // to accomodate this. | |
118 | |
119 void InterpreterRuntime::SignatureHandlerGeneratorBase::generate( | |
120 uint64_t fingerprint) { | |
121 | |
122 // Build the argument types list | |
123 pass_object(); | |
124 if (method()->is_static()) | |
125 pass_object(); | |
126 iterate(fingerprint); | |
127 | |
128 // Tack on the result type | |
129 push(method()->result_type()); | |
130 } | |
131 | |
132 void InterpreterRuntime::SignatureHandler::finalize() { | |
133 ffi_status status = | |
134 ffi_prep_cif(cif(), | |
135 FFI_DEFAULT_ABI, | |
136 argument_count(), | |
137 result_type(), | |
138 argument_types()); | |
139 | |
140 assert(status == FFI_OK, "should be"); | |
141 } | |
142 | |
143 IRT_ENTRY(address, | |
144 InterpreterRuntime::slow_signature_handler(JavaThread* thread, | |
145 methodOop method, | |
146 intptr_t* unused1, | |
147 intptr_t* unused2)) | |
148 ZeroStack *stack = thread->zero_stack(); | |
149 | |
150 int required_words = | |
151 (align_size_up(sizeof(ffi_cif), wordSize) >> LogBytesPerWord) + | |
152 (method->is_static() ? 2 : 1) + method->size_of_parameters() + 1; | |
1379 | 153 |
154 stack->overflow_check(required_words, CHECK_NULL); | |
1010 | 155 |
156 intptr_t *buf = (intptr_t *) stack->alloc(required_words * wordSize); | |
157 SlowSignatureHandlerGenerator sshg(methodHandle(thread, method), buf); | |
158 sshg.generate(UCONST64(-1)); | |
159 | |
160 SignatureHandler *handler = sshg.handler(); | |
161 handler->finalize(); | |
162 | |
163 return (address) handler; | |
164 IRT_END | |
165 | |
166 void SignatureHandlerLibrary::pd_set_handler(address handlerAddr) { | |
167 InterpreterRuntime::SignatureHandler *handler = | |
168 InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); | |
169 | |
170 handler->finalize(); | |
171 } |