Mercurial > hg > graal-compiler
annotate src/share/vm/code/debugInfo.hpp @ 1751:2528b5bd749c
6980262: Memory leak when exception is thrown in static initializer
Summary: Use resource memory instead of c-heap for the exception message
Reviewed-by: phh, jmasa
author | kamg |
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date | Fri, 27 Aug 2010 15:05:28 -0400 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2009, Oracle and/or its affiliates. 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // Classes used for serializing debugging information. | |
26 // These abstractions are introducted to provide symmetric | |
27 // read and write operations. | |
28 | |
29 // ScopeValue describes the value of a variable/expression in a scope | |
30 // - LocationValue describes a value in a given location (in frame or register) | |
31 // - ConstantValue describes a constant | |
32 | |
33 class ScopeValue: public ResourceObj { | |
34 public: | |
35 // Testers | |
36 virtual bool is_location() const { return false; } | |
37 virtual bool is_object() const { return false; } | |
38 virtual bool is_constant_int() const { return false; } | |
39 virtual bool is_constant_double() const { return false; } | |
40 virtual bool is_constant_long() const { return false; } | |
41 virtual bool is_constant_oop() const { return false; } | |
42 virtual bool equals(ScopeValue* other) const { return false; } | |
43 | |
44 // Serialization of debugging information | |
45 virtual void write_on(DebugInfoWriteStream* stream) = 0; | |
46 static ScopeValue* read_from(DebugInfoReadStream* stream); | |
47 }; | |
48 | |
49 | |
50 // A Location value describes a value in a given location; i.e. the corresponding | |
51 // logical entity (e.g., a method temporary) lives in this location. | |
52 | |
53 class LocationValue: public ScopeValue { | |
54 private: | |
55 Location _location; | |
56 public: | |
57 LocationValue(Location location) { _location = location; } | |
58 bool is_location() const { return true; } | |
59 Location location() const { return _location; } | |
60 | |
61 // Serialization of debugging information | |
62 LocationValue(DebugInfoReadStream* stream); | |
63 void write_on(DebugInfoWriteStream* stream); | |
64 | |
65 // Printing | |
66 void print_on(outputStream* st) const; | |
67 }; | |
68 | |
69 | |
70 // An ObjectValue describes an object eliminated by escape analysis. | |
71 | |
72 class ObjectValue: public ScopeValue { | |
73 private: | |
74 int _id; | |
75 ScopeValue* _klass; | |
76 GrowableArray<ScopeValue*> _field_values; | |
77 Handle _value; | |
78 bool _visited; | |
79 | |
80 public: | |
81 ObjectValue(int id, ScopeValue* klass) | |
82 : _id(id) | |
83 , _klass(klass) | |
84 , _field_values() | |
85 , _value() | |
86 , _visited(false) { | |
87 assert(klass->is_constant_oop(), "should be constant klass oop"); | |
88 } | |
89 | |
90 ObjectValue(int id) | |
91 : _id(id) | |
92 , _klass(NULL) | |
93 , _field_values() | |
94 , _value() | |
95 , _visited(false) {} | |
96 | |
97 // Accessors | |
98 bool is_object() const { return true; } | |
99 int id() const { return _id; } | |
100 ScopeValue* klass() const { return _klass; } | |
101 GrowableArray<ScopeValue*>* field_values() { return &_field_values; } | |
102 ScopeValue* field_at(int i) const { return _field_values.at(i); } | |
103 int field_size() { return _field_values.length(); } | |
104 Handle value() const { return _value; } | |
105 bool is_visited() const { return _visited; } | |
106 | |
107 void set_value(oop value) { _value = Handle(value); } | |
108 void set_visited(bool visited) { _visited = false; } | |
109 | |
110 // Serialization of debugging information | |
111 void read_object(DebugInfoReadStream* stream); | |
112 void write_on(DebugInfoWriteStream* stream); | |
113 | |
114 // Printing | |
115 void print_on(outputStream* st) const; | |
116 void print_fields_on(outputStream* st) const; | |
117 }; | |
118 | |
119 | |
120 // A ConstantIntValue describes a constant int; i.e., the corresponding logical entity | |
121 // is either a source constant or its computation has been constant-folded. | |
122 | |
123 class ConstantIntValue: public ScopeValue { | |
124 private: | |
125 jint _value; | |
126 public: | |
127 ConstantIntValue(jint value) { _value = value; } | |
128 jint value() const { return _value; } | |
129 bool is_constant_int() const { return true; } | |
130 bool equals(ScopeValue* other) const { return false; } | |
131 | |
132 // Serialization of debugging information | |
133 ConstantIntValue(DebugInfoReadStream* stream); | |
134 void write_on(DebugInfoWriteStream* stream); | |
135 | |
136 // Printing | |
137 void print_on(outputStream* st) const; | |
138 }; | |
139 | |
140 class ConstantLongValue: public ScopeValue { | |
141 private: | |
142 jlong _value; | |
143 public: | |
144 ConstantLongValue(jlong value) { _value = value; } | |
145 jlong value() const { return _value; } | |
146 bool is_constant_long() const { return true; } | |
147 bool equals(ScopeValue* other) const { return false; } | |
148 | |
149 // Serialization of debugging information | |
150 ConstantLongValue(DebugInfoReadStream* stream); | |
151 void write_on(DebugInfoWriteStream* stream); | |
152 | |
153 // Printing | |
154 void print_on(outputStream* st) const; | |
155 }; | |
156 | |
157 class ConstantDoubleValue: public ScopeValue { | |
158 private: | |
159 jdouble _value; | |
160 public: | |
161 ConstantDoubleValue(jdouble value) { _value = value; } | |
162 jdouble value() const { return _value; } | |
163 bool is_constant_double() const { return true; } | |
164 bool equals(ScopeValue* other) const { return false; } | |
165 | |
166 // Serialization of debugging information | |
167 ConstantDoubleValue(DebugInfoReadStream* stream); | |
168 void write_on(DebugInfoWriteStream* stream); | |
169 | |
170 // Printing | |
171 void print_on(outputStream* st) const; | |
172 }; | |
173 | |
174 // A ConstantOopWriteValue is created by the compiler to | |
175 // be written as debugging information. | |
176 | |
177 class ConstantOopWriteValue: public ScopeValue { | |
178 private: | |
179 jobject _value; | |
180 public: | |
181 ConstantOopWriteValue(jobject value) { _value = value; } | |
182 jobject value() const { return _value; } | |
183 bool is_constant_oop() const { return true; } | |
184 bool equals(ScopeValue* other) const { return false; } | |
185 | |
186 // Serialization of debugging information | |
187 void write_on(DebugInfoWriteStream* stream); | |
188 | |
189 // Printing | |
190 void print_on(outputStream* st) const; | |
191 }; | |
192 | |
193 // A ConstantOopReadValue is created by the VM when reading | |
194 // debug information | |
195 | |
196 class ConstantOopReadValue: public ScopeValue { | |
197 private: | |
198 Handle _value; | |
199 public: | |
200 Handle value() const { return _value; } | |
201 bool is_constant_oop() const { return true; } | |
202 bool equals(ScopeValue* other) const { return false; } | |
203 | |
204 // Serialization of debugging information | |
205 ConstantOopReadValue(DebugInfoReadStream* stream); | |
206 void write_on(DebugInfoWriteStream* stream); | |
207 | |
208 // Printing | |
209 void print_on(outputStream* st) const; | |
210 }; | |
211 | |
212 // MonitorValue describes the pair used for monitor_enter and monitor_exit. | |
213 | |
214 class MonitorValue: public ResourceObj { | |
215 private: | |
216 ScopeValue* _owner; | |
217 Location _basic_lock; | |
218 bool _eliminated; | |
219 public: | |
220 // Constructor | |
221 MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated = false); | |
222 | |
223 // Accessors | |
224 ScopeValue* owner() const { return _owner; } | |
225 Location basic_lock() const { return _basic_lock; } | |
226 bool eliminated() const { return _eliminated; } | |
227 | |
228 // Serialization of debugging information | |
229 MonitorValue(DebugInfoReadStream* stream); | |
230 void write_on(DebugInfoWriteStream* stream); | |
231 | |
232 // Printing | |
233 void print_on(outputStream* st) const; | |
234 }; | |
235 | |
236 // DebugInfoReadStream specializes CompressedReadStream for reading | |
237 // debugging information. Used by ScopeDesc. | |
238 | |
239 class DebugInfoReadStream : public CompressedReadStream { | |
240 private: | |
241 const nmethod* _code; | |
242 const nmethod* code() const { return _code; } | |
243 GrowableArray<ScopeValue*>* _obj_pool; | |
244 public: | |
245 DebugInfoReadStream(const nmethod* code, int offset, GrowableArray<ScopeValue*>* obj_pool = NULL) : | |
246 CompressedReadStream(code->scopes_data_begin(), offset) { | |
247 _code = code; | |
248 _obj_pool = obj_pool; | |
249 | |
250 } ; | |
251 | |
252 oop read_oop() { | |
253 return code()->oop_at(read_int()); | |
254 } | |
255 ScopeValue* read_object_value(); | |
256 ScopeValue* get_cached_object(); | |
257 // BCI encoding is mostly unsigned, but -1 is a distinguished value | |
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258 int read_bci() { return read_int() + InvocationEntryBci; } |
0 | 259 }; |
260 | |
261 // DebugInfoWriteStream specializes CompressedWriteStream for | |
262 // writing debugging information. Used by ScopeDescRecorder. | |
263 | |
264 class DebugInfoWriteStream : public CompressedWriteStream { | |
265 private: | |
266 DebugInformationRecorder* _recorder; | |
267 DebugInformationRecorder* recorder() const { return _recorder; } | |
268 public: | |
269 DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size); | |
270 void write_handle(jobject h); | |
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271 void write_bci(int bci) { write_int(bci - InvocationEntryBci); } |
0 | 272 }; |