Mercurial > hg > truffle
annotate src/share/vm/code/debugInfo.cpp @ 1293:51db1e4b379d
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
Summary: A modified MethodHandlesTest revealed two bugs on x86_64.
Reviewed-by: never, jrose
author | twisti |
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date | Mon, 08 Mar 2010 04:46:30 -0800 |
parents | d1605aabd0a1 |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
196 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. |
0 | 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_debugInfo.cpp.incl" | |
27 | |
28 // Comstructors | |
29 | |
30 DebugInfoWriteStream::DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size) | |
31 : CompressedWriteStream(initial_size) { | |
32 _recorder = recorder; | |
33 } | |
34 | |
35 // Serializing oops | |
36 | |
37 void DebugInfoWriteStream::write_handle(jobject h) { | |
38 write_int(recorder()->oop_recorder()->find_index(h)); | |
39 } | |
40 | |
41 ScopeValue* DebugInfoReadStream::read_object_value() { | |
42 int id = read_int(); | |
43 #ifdef ASSERT | |
44 assert(_obj_pool != NULL, "object pool does not exist"); | |
45 for (int i = _obj_pool->length() - 1; i >= 0; i--) { | |
46 assert(((ObjectValue*) _obj_pool->at(i))->id() != id, "should not be read twice"); | |
47 } | |
48 #endif | |
49 ObjectValue* result = new ObjectValue(id); | |
44
52fed2ec0afb
6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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50 // Cache the object since an object field could reference it. |
52fed2ec0afb
6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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51 _obj_pool->push(result); |
0 | 52 result->read_object(this); |
53 return result; | |
54 } | |
55 | |
56 ScopeValue* DebugInfoReadStream::get_cached_object() { | |
57 int id = read_int(); | |
58 assert(_obj_pool != NULL, "object pool does not exist"); | |
59 for (int i = _obj_pool->length() - 1; i >= 0; i--) { | |
44
52fed2ec0afb
6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
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60 ObjectValue* ov = (ObjectValue*) _obj_pool->at(i); |
52fed2ec0afb
6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
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61 if (ov->id() == id) { |
52fed2ec0afb
6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents:
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62 return ov; |
0 | 63 } |
64 } | |
65 ShouldNotReachHere(); | |
66 return NULL; | |
67 } | |
68 | |
69 // Serializing scope values | |
70 | |
71 enum { LOCATION_CODE = 0, CONSTANT_INT_CODE = 1, CONSTANT_OOP_CODE = 2, | |
72 CONSTANT_LONG_CODE = 3, CONSTANT_DOUBLE_CODE = 4, | |
73 OBJECT_CODE = 5, OBJECT_ID_CODE = 6 }; | |
74 | |
75 ScopeValue* ScopeValue::read_from(DebugInfoReadStream* stream) { | |
76 ScopeValue* result = NULL; | |
77 switch(stream->read_int()) { | |
78 case LOCATION_CODE: result = new LocationValue(stream); break; | |
79 case CONSTANT_INT_CODE: result = new ConstantIntValue(stream); break; | |
80 case CONSTANT_OOP_CODE: result = new ConstantOopReadValue(stream); break; | |
81 case CONSTANT_LONG_CODE: result = new ConstantLongValue(stream); break; | |
82 case CONSTANT_DOUBLE_CODE: result = new ConstantDoubleValue(stream); break; | |
83 case OBJECT_CODE: result = stream->read_object_value(); break; | |
84 case OBJECT_ID_CODE: result = stream->get_cached_object(); break; | |
85 default: ShouldNotReachHere(); | |
86 } | |
87 return result; | |
88 } | |
89 | |
90 // LocationValue | |
91 | |
92 LocationValue::LocationValue(DebugInfoReadStream* stream) { | |
93 _location = Location(stream); | |
94 } | |
95 | |
96 void LocationValue::write_on(DebugInfoWriteStream* stream) { | |
97 stream->write_int(LOCATION_CODE); | |
98 location().write_on(stream); | |
99 } | |
100 | |
101 void LocationValue::print_on(outputStream* st) const { | |
102 location().print_on(st); | |
103 } | |
104 | |
105 // ObjectValue | |
106 | |
107 void ObjectValue::read_object(DebugInfoReadStream* stream) { | |
108 _klass = read_from(stream); | |
109 assert(_klass->is_constant_oop(), "should be constant klass oop"); | |
110 int length = stream->read_int(); | |
111 for (int i = 0; i < length; i++) { | |
112 ScopeValue* val = read_from(stream); | |
113 _field_values.append(val); | |
114 } | |
115 } | |
116 | |
117 void ObjectValue::write_on(DebugInfoWriteStream* stream) { | |
118 if (_visited) { | |
119 stream->write_int(OBJECT_ID_CODE); | |
120 stream->write_int(_id); | |
121 } else { | |
122 _visited = true; | |
123 stream->write_int(OBJECT_CODE); | |
124 stream->write_int(_id); | |
125 _klass->write_on(stream); | |
126 int length = _field_values.length(); | |
127 stream->write_int(length); | |
128 for (int i = 0; i < length; i++) { | |
129 _field_values.at(i)->write_on(stream); | |
130 } | |
131 } | |
132 } | |
133 | |
134 void ObjectValue::print_on(outputStream* st) const { | |
135 st->print("obj[%d]", _id); | |
136 } | |
137 | |
138 void ObjectValue::print_fields_on(outputStream* st) const { | |
139 #ifndef PRODUCT | |
140 if (_field_values.length() > 0) { | |
141 _field_values.at(0)->print_on(st); | |
142 } | |
143 for (int i = 1; i < _field_values.length(); i++) { | |
144 st->print(", "); | |
145 _field_values.at(i)->print_on(st); | |
146 } | |
147 #endif | |
148 } | |
149 | |
150 // ConstantIntValue | |
151 | |
152 ConstantIntValue::ConstantIntValue(DebugInfoReadStream* stream) { | |
153 _value = stream->read_signed_int(); | |
154 } | |
155 | |
156 void ConstantIntValue::write_on(DebugInfoWriteStream* stream) { | |
157 stream->write_int(CONSTANT_INT_CODE); | |
158 stream->write_signed_int(value()); | |
159 } | |
160 | |
161 void ConstantIntValue::print_on(outputStream* st) const { | |
162 st->print("%d", value()); | |
163 } | |
164 | |
165 // ConstantLongValue | |
166 | |
167 ConstantLongValue::ConstantLongValue(DebugInfoReadStream* stream) { | |
168 _value = stream->read_long(); | |
169 } | |
170 | |
171 void ConstantLongValue::write_on(DebugInfoWriteStream* stream) { | |
172 stream->write_int(CONSTANT_LONG_CODE); | |
173 stream->write_long(value()); | |
174 } | |
175 | |
176 void ConstantLongValue::print_on(outputStream* st) const { | |
177 st->print(INT64_FORMAT, value()); | |
178 } | |
179 | |
180 // ConstantDoubleValue | |
181 | |
182 ConstantDoubleValue::ConstantDoubleValue(DebugInfoReadStream* stream) { | |
183 _value = stream->read_double(); | |
184 } | |
185 | |
186 void ConstantDoubleValue::write_on(DebugInfoWriteStream* stream) { | |
187 stream->write_int(CONSTANT_DOUBLE_CODE); | |
188 stream->write_double(value()); | |
189 } | |
190 | |
191 void ConstantDoubleValue::print_on(outputStream* st) const { | |
192 st->print("%f", value()); | |
193 } | |
194 | |
195 // ConstantOopWriteValue | |
196 | |
197 void ConstantOopWriteValue::write_on(DebugInfoWriteStream* stream) { | |
198 stream->write_int(CONSTANT_OOP_CODE); | |
199 stream->write_handle(value()); | |
200 } | |
201 | |
202 void ConstantOopWriteValue::print_on(outputStream* st) const { | |
203 JNIHandles::resolve(value())->print_value_on(st); | |
204 } | |
205 | |
206 | |
207 // ConstantOopReadValue | |
208 | |
209 ConstantOopReadValue::ConstantOopReadValue(DebugInfoReadStream* stream) { | |
210 _value = Handle(stream->read_oop()); | |
211 } | |
212 | |
213 void ConstantOopReadValue::write_on(DebugInfoWriteStream* stream) { | |
214 ShouldNotReachHere(); | |
215 } | |
216 | |
217 void ConstantOopReadValue::print_on(outputStream* st) const { | |
218 value()()->print_value_on(st); | |
219 } | |
220 | |
221 | |
222 // MonitorValue | |
223 | |
224 MonitorValue::MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated) { | |
225 _owner = owner; | |
226 _basic_lock = basic_lock; | |
227 _eliminated = eliminated; | |
228 } | |
229 | |
230 MonitorValue::MonitorValue(DebugInfoReadStream* stream) { | |
231 _basic_lock = Location(stream); | |
232 _owner = ScopeValue::read_from(stream); | |
233 _eliminated = (stream->read_bool() != 0); | |
234 } | |
235 | |
236 void MonitorValue::write_on(DebugInfoWriteStream* stream) { | |
237 _basic_lock.write_on(stream); | |
238 _owner->write_on(stream); | |
239 stream->write_bool(_eliminated); | |
240 } | |
241 | |
242 #ifndef PRODUCT | |
243 void MonitorValue::print_on(outputStream* st) const { | |
244 st->print("monitor{"); | |
245 owner()->print_on(st); | |
246 st->print(","); | |
247 basic_lock().print_on(st); | |
248 st->print("}"); | |
249 if (_eliminated) { | |
250 st->print(" (eliminated)"); | |
251 } | |
252 } | |
253 #endif |