Mercurial > hg > graal-compiler
comparison src/share/vm/code/debugInfo.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | 52fed2ec0afb |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. | |
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); | |
50 _obj_pool->append(result); | |
51 result->read_object(this); | |
52 return result; | |
53 } | |
54 | |
55 ScopeValue* DebugInfoReadStream::get_cached_object() { | |
56 int id = read_int(); | |
57 assert(_obj_pool != NULL, "object pool does not exist"); | |
58 for (int i = _obj_pool->length() - 1; i >= 0; i--) { | |
59 ObjectValue* sv = (ObjectValue*) _obj_pool->at(i); | |
60 if (sv->id() == id) { | |
61 return sv; | |
62 } | |
63 } | |
64 ShouldNotReachHere(); | |
65 return NULL; | |
66 } | |
67 | |
68 // Serializing scope values | |
69 | |
70 enum { LOCATION_CODE = 0, CONSTANT_INT_CODE = 1, CONSTANT_OOP_CODE = 2, | |
71 CONSTANT_LONG_CODE = 3, CONSTANT_DOUBLE_CODE = 4, | |
72 OBJECT_CODE = 5, OBJECT_ID_CODE = 6 }; | |
73 | |
74 ScopeValue* ScopeValue::read_from(DebugInfoReadStream* stream) { | |
75 ScopeValue* result = NULL; | |
76 switch(stream->read_int()) { | |
77 case LOCATION_CODE: result = new LocationValue(stream); break; | |
78 case CONSTANT_INT_CODE: result = new ConstantIntValue(stream); break; | |
79 case CONSTANT_OOP_CODE: result = new ConstantOopReadValue(stream); break; | |
80 case CONSTANT_LONG_CODE: result = new ConstantLongValue(stream); break; | |
81 case CONSTANT_DOUBLE_CODE: result = new ConstantDoubleValue(stream); break; | |
82 case OBJECT_CODE: result = stream->read_object_value(); break; | |
83 case OBJECT_ID_CODE: result = stream->get_cached_object(); break; | |
84 default: ShouldNotReachHere(); | |
85 } | |
86 return result; | |
87 } | |
88 | |
89 // LocationValue | |
90 | |
91 LocationValue::LocationValue(DebugInfoReadStream* stream) { | |
92 _location = Location(stream); | |
93 } | |
94 | |
95 void LocationValue::write_on(DebugInfoWriteStream* stream) { | |
96 stream->write_int(LOCATION_CODE); | |
97 location().write_on(stream); | |
98 } | |
99 | |
100 void LocationValue::print_on(outputStream* st) const { | |
101 location().print_on(st); | |
102 } | |
103 | |
104 // ObjectValue | |
105 | |
106 void ObjectValue::read_object(DebugInfoReadStream* stream) { | |
107 _klass = read_from(stream); | |
108 assert(_klass->is_constant_oop(), "should be constant klass oop"); | |
109 int length = stream->read_int(); | |
110 for (int i = 0; i < length; i++) { | |
111 ScopeValue* val = read_from(stream); | |
112 _field_values.append(val); | |
113 } | |
114 } | |
115 | |
116 void ObjectValue::write_on(DebugInfoWriteStream* stream) { | |
117 if (_visited) { | |
118 stream->write_int(OBJECT_ID_CODE); | |
119 stream->write_int(_id); | |
120 } else { | |
121 _visited = true; | |
122 stream->write_int(OBJECT_CODE); | |
123 stream->write_int(_id); | |
124 _klass->write_on(stream); | |
125 int length = _field_values.length(); | |
126 stream->write_int(length); | |
127 for (int i = 0; i < length; i++) { | |
128 _field_values.at(i)->write_on(stream); | |
129 } | |
130 } | |
131 } | |
132 | |
133 void ObjectValue::print_on(outputStream* st) const { | |
134 st->print("obj[%d]", _id); | |
135 } | |
136 | |
137 void ObjectValue::print_fields_on(outputStream* st) const { | |
138 #ifndef PRODUCT | |
139 if (_field_values.length() > 0) { | |
140 _field_values.at(0)->print_on(st); | |
141 } | |
142 for (int i = 1; i < _field_values.length(); i++) { | |
143 st->print(", "); | |
144 _field_values.at(i)->print_on(st); | |
145 } | |
146 #endif | |
147 } | |
148 | |
149 // ConstantIntValue | |
150 | |
151 ConstantIntValue::ConstantIntValue(DebugInfoReadStream* stream) { | |
152 _value = stream->read_signed_int(); | |
153 } | |
154 | |
155 void ConstantIntValue::write_on(DebugInfoWriteStream* stream) { | |
156 stream->write_int(CONSTANT_INT_CODE); | |
157 stream->write_signed_int(value()); | |
158 } | |
159 | |
160 void ConstantIntValue::print_on(outputStream* st) const { | |
161 st->print("%d", value()); | |
162 } | |
163 | |
164 // ConstantLongValue | |
165 | |
166 ConstantLongValue::ConstantLongValue(DebugInfoReadStream* stream) { | |
167 _value = stream->read_long(); | |
168 } | |
169 | |
170 void ConstantLongValue::write_on(DebugInfoWriteStream* stream) { | |
171 stream->write_int(CONSTANT_LONG_CODE); | |
172 stream->write_long(value()); | |
173 } | |
174 | |
175 void ConstantLongValue::print_on(outputStream* st) const { | |
176 st->print(INT64_FORMAT, value()); | |
177 } | |
178 | |
179 // ConstantDoubleValue | |
180 | |
181 ConstantDoubleValue::ConstantDoubleValue(DebugInfoReadStream* stream) { | |
182 _value = stream->read_double(); | |
183 } | |
184 | |
185 void ConstantDoubleValue::write_on(DebugInfoWriteStream* stream) { | |
186 stream->write_int(CONSTANT_DOUBLE_CODE); | |
187 stream->write_double(value()); | |
188 } | |
189 | |
190 void ConstantDoubleValue::print_on(outputStream* st) const { | |
191 st->print("%f", value()); | |
192 } | |
193 | |
194 // ConstantOopWriteValue | |
195 | |
196 void ConstantOopWriteValue::write_on(DebugInfoWriteStream* stream) { | |
197 stream->write_int(CONSTANT_OOP_CODE); | |
198 stream->write_handle(value()); | |
199 } | |
200 | |
201 void ConstantOopWriteValue::print_on(outputStream* st) const { | |
202 JNIHandles::resolve(value())->print_value_on(st); | |
203 } | |
204 | |
205 | |
206 // ConstantOopReadValue | |
207 | |
208 ConstantOopReadValue::ConstantOopReadValue(DebugInfoReadStream* stream) { | |
209 _value = Handle(stream->read_oop()); | |
210 } | |
211 | |
212 void ConstantOopReadValue::write_on(DebugInfoWriteStream* stream) { | |
213 ShouldNotReachHere(); | |
214 } | |
215 | |
216 void ConstantOopReadValue::print_on(outputStream* st) const { | |
217 value()()->print_value_on(st); | |
218 } | |
219 | |
220 | |
221 // MonitorValue | |
222 | |
223 MonitorValue::MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated) { | |
224 _owner = owner; | |
225 _basic_lock = basic_lock; | |
226 _eliminated = eliminated; | |
227 } | |
228 | |
229 MonitorValue::MonitorValue(DebugInfoReadStream* stream) { | |
230 _basic_lock = Location(stream); | |
231 _owner = ScopeValue::read_from(stream); | |
232 _eliminated = (stream->read_bool() != 0); | |
233 } | |
234 | |
235 void MonitorValue::write_on(DebugInfoWriteStream* stream) { | |
236 _basic_lock.write_on(stream); | |
237 _owner->write_on(stream); | |
238 stream->write_bool(_eliminated); | |
239 } | |
240 | |
241 #ifndef PRODUCT | |
242 void MonitorValue::print_on(outputStream* st) const { | |
243 st->print("monitor{"); | |
244 owner()->print_on(st); | |
245 st->print(","); | |
246 basic_lock().print_on(st); | |
247 st->print("}"); | |
248 if (_eliminated) { | |
249 st->print(" (eliminated)"); | |
250 } | |
251 } | |
252 #endif |