Mercurial > hg > truffle
annotate src/share/vm/code/debugInfo.hpp @ 19177:1a7b33c96c0d
Fixes for TruffleGraphBuilderPluginsProvider.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 06 Feb 2015 16:49:34 +0100 |
parents | 52b4284cb496 |
children | 15ef24874df7 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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 | |
1972 | 25 #ifndef SHARE_VM_CODE_DEBUGINFO_HPP |
26 #define SHARE_VM_CODE_DEBUGINFO_HPP | |
27 | |
28 #include "code/compressedStream.hpp" | |
29 #include "code/location.hpp" | |
30 #include "code/nmethod.hpp" | |
31 #include "code/oopRecorder.hpp" | |
32 #include "runtime/stackValue.hpp" | |
33 #include "utilities/growableArray.hpp" | |
34 | |
0 | 35 // Classes used for serializing debugging information. |
36 // These abstractions are introducted to provide symmetric | |
37 // read and write operations. | |
38 | |
39 // ScopeValue describes the value of a variable/expression in a scope | |
40 // - LocationValue describes a value in a given location (in frame or register) | |
41 // - ConstantValue describes a constant | |
42 | |
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43 class ConstantOopReadValue; |
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44 |
0 | 45 class ScopeValue: public ResourceObj { |
46 public: | |
47 // Testers | |
48 virtual bool is_location() const { return false; } | |
49 virtual bool is_object() const { return false; } | |
50 virtual bool is_constant_int() const { return false; } | |
51 virtual bool is_constant_double() const { return false; } | |
52 virtual bool is_constant_long() const { return false; } | |
53 virtual bool is_constant_oop() const { return false; } | |
54 virtual bool equals(ScopeValue* other) const { return false; } | |
55 | |
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56 ConstantOopReadValue* as_ConstantOopReadValue() { |
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57 assert(is_constant_oop(), "must be"); |
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58 return (ConstantOopReadValue*) this; |
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59 } |
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60 |
0 | 61 // Serialization of debugging information |
62 virtual void write_on(DebugInfoWriteStream* stream) = 0; | |
63 static ScopeValue* read_from(DebugInfoReadStream* stream); | |
64 }; | |
65 | |
66 | |
67 // A Location value describes a value in a given location; i.e. the corresponding | |
68 // logical entity (e.g., a method temporary) lives in this location. | |
69 | |
70 class LocationValue: public ScopeValue { | |
71 private: | |
72 Location _location; | |
73 public: | |
74 LocationValue(Location location) { _location = location; } | |
75 bool is_location() const { return true; } | |
76 Location location() const { return _location; } | |
77 | |
78 // Serialization of debugging information | |
79 LocationValue(DebugInfoReadStream* stream); | |
80 void write_on(DebugInfoWriteStream* stream); | |
81 | |
82 // Printing | |
83 void print_on(outputStream* st) const; | |
84 }; | |
85 | |
86 | |
87 // An ObjectValue describes an object eliminated by escape analysis. | |
88 | |
89 class ObjectValue: public ScopeValue { | |
90 private: | |
91 int _id; | |
92 ScopeValue* _klass; | |
93 GrowableArray<ScopeValue*> _field_values; | |
94 Handle _value; | |
95 bool _visited; | |
96 | |
97 public: | |
98 ObjectValue(int id, ScopeValue* klass) | |
99 : _id(id) | |
100 , _klass(klass) | |
101 , _field_values() | |
102 , _value() | |
103 , _visited(false) { | |
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104 assert(klass->is_constant_oop(), "should be constant java mirror oop"); |
0 | 105 } |
106 | |
107 ObjectValue(int id) | |
108 : _id(id) | |
109 , _klass(NULL) | |
110 , _field_values() | |
111 , _value() | |
112 , _visited(false) {} | |
113 | |
114 // Accessors | |
115 bool is_object() const { return true; } | |
116 int id() const { return _id; } | |
117 ScopeValue* klass() const { return _klass; } | |
118 GrowableArray<ScopeValue*>* field_values() { return &_field_values; } | |
119 ScopeValue* field_at(int i) const { return _field_values.at(i); } | |
120 int field_size() { return _field_values.length(); } | |
121 Handle value() const { return _value; } | |
122 bool is_visited() const { return _visited; } | |
123 | |
124 void set_value(oop value) { _value = Handle(value); } | |
125 void set_visited(bool visited) { _visited = false; } | |
126 | |
127 // Serialization of debugging information | |
128 void read_object(DebugInfoReadStream* stream); | |
129 void write_on(DebugInfoWriteStream* stream); | |
130 | |
131 // Printing | |
132 void print_on(outputStream* st) const; | |
133 void print_fields_on(outputStream* st) const; | |
134 }; | |
135 | |
136 | |
137 // A ConstantIntValue describes a constant int; i.e., the corresponding logical entity | |
138 // is either a source constant or its computation has been constant-folded. | |
139 | |
140 class ConstantIntValue: public ScopeValue { | |
141 private: | |
142 jint _value; | |
143 public: | |
144 ConstantIntValue(jint value) { _value = value; } | |
145 jint value() const { return _value; } | |
146 bool is_constant_int() const { return true; } | |
147 bool equals(ScopeValue* other) const { return false; } | |
148 | |
149 // Serialization of debugging information | |
150 ConstantIntValue(DebugInfoReadStream* stream); | |
151 void write_on(DebugInfoWriteStream* stream); | |
152 | |
153 // Printing | |
154 void print_on(outputStream* st) const; | |
155 }; | |
156 | |
157 class ConstantLongValue: public ScopeValue { | |
158 private: | |
159 jlong _value; | |
160 public: | |
161 ConstantLongValue(jlong value) { _value = value; } | |
162 jlong value() const { return _value; } | |
163 bool is_constant_long() const { return true; } | |
164 bool equals(ScopeValue* other) const { return false; } | |
165 | |
166 // Serialization of debugging information | |
167 ConstantLongValue(DebugInfoReadStream* stream); | |
168 void write_on(DebugInfoWriteStream* stream); | |
169 | |
170 // Printing | |
171 void print_on(outputStream* st) const; | |
172 }; | |
173 | |
174 class ConstantDoubleValue: public ScopeValue { | |
175 private: | |
176 jdouble _value; | |
177 public: | |
178 ConstantDoubleValue(jdouble value) { _value = value; } | |
179 jdouble value() const { return _value; } | |
180 bool is_constant_double() const { return true; } | |
181 bool equals(ScopeValue* other) const { return false; } | |
182 | |
183 // Serialization of debugging information | |
184 ConstantDoubleValue(DebugInfoReadStream* stream); | |
185 void write_on(DebugInfoWriteStream* stream); | |
186 | |
187 // Printing | |
188 void print_on(outputStream* st) const; | |
189 }; | |
190 | |
191 // A ConstantOopWriteValue is created by the compiler to | |
192 // be written as debugging information. | |
193 | |
194 class ConstantOopWriteValue: public ScopeValue { | |
195 private: | |
196 jobject _value; | |
197 public: | |
198 ConstantOopWriteValue(jobject value) { _value = value; } | |
199 jobject value() const { return _value; } | |
200 bool is_constant_oop() const { return true; } | |
201 bool equals(ScopeValue* other) const { return false; } | |
202 | |
203 // Serialization of debugging information | |
204 void write_on(DebugInfoWriteStream* stream); | |
205 | |
206 // Printing | |
207 void print_on(outputStream* st) const; | |
208 }; | |
209 | |
210 // A ConstantOopReadValue is created by the VM when reading | |
211 // debug information | |
212 | |
213 class ConstantOopReadValue: public ScopeValue { | |
214 private: | |
215 Handle _value; | |
216 public: | |
217 Handle value() const { return _value; } | |
218 bool is_constant_oop() const { return true; } | |
219 bool equals(ScopeValue* other) const { return false; } | |
220 | |
221 // Serialization of debugging information | |
222 ConstantOopReadValue(DebugInfoReadStream* stream); | |
223 void write_on(DebugInfoWriteStream* stream); | |
224 | |
225 // Printing | |
226 void print_on(outputStream* st) const; | |
227 }; | |
228 | |
229 // MonitorValue describes the pair used for monitor_enter and monitor_exit. | |
230 | |
231 class MonitorValue: public ResourceObj { | |
232 private: | |
233 ScopeValue* _owner; | |
234 Location _basic_lock; | |
235 bool _eliminated; | |
236 public: | |
237 // Constructor | |
238 MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated = false); | |
239 | |
240 // Accessors | |
241 ScopeValue* owner() const { return _owner; } | |
242 Location basic_lock() const { return _basic_lock; } | |
243 bool eliminated() const { return _eliminated; } | |
244 | |
245 // Serialization of debugging information | |
246 MonitorValue(DebugInfoReadStream* stream); | |
247 void write_on(DebugInfoWriteStream* stream); | |
248 | |
249 // Printing | |
250 void print_on(outputStream* st) const; | |
251 }; | |
252 | |
253 // DebugInfoReadStream specializes CompressedReadStream for reading | |
254 // debugging information. Used by ScopeDesc. | |
255 | |
256 class DebugInfoReadStream : public CompressedReadStream { | |
257 private: | |
258 const nmethod* _code; | |
259 const nmethod* code() const { return _code; } | |
260 GrowableArray<ScopeValue*>* _obj_pool; | |
261 public: | |
262 DebugInfoReadStream(const nmethod* code, int offset, GrowableArray<ScopeValue*>* obj_pool = NULL) : | |
263 CompressedReadStream(code->scopes_data_begin(), offset) { | |
264 _code = code; | |
265 _obj_pool = obj_pool; | |
266 | |
267 } ; | |
268 | |
269 oop read_oop() { | |
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270 oop o = code()->oop_at(read_int()); |
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271 assert(o == NULL || o->is_oop(), "oop only"); |
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272 return o; |
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273 } |
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274 Method* read_method() { |
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275 Method* o = (Method*)(code()->metadata_at(read_int())); |
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276 // is_metadata() is a faster check than is_metaspace_object() |
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277 assert(o == NULL || o->is_metadata(), "meta data only"); |
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278 return o; |
0 | 279 } |
280 ScopeValue* read_object_value(); | |
281 ScopeValue* get_cached_object(); | |
282 // BCI encoding is mostly unsigned, but -1 is a distinguished value | |
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283 int read_bci() { return read_int() + InvocationEntryBci; } |
0 | 284 }; |
285 | |
286 // DebugInfoWriteStream specializes CompressedWriteStream for | |
287 // writing debugging information. Used by ScopeDescRecorder. | |
288 | |
289 class DebugInfoWriteStream : public CompressedWriteStream { | |
290 private: | |
291 DebugInformationRecorder* _recorder; | |
292 DebugInformationRecorder* recorder() const { return _recorder; } | |
293 public: | |
294 DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size); | |
295 void write_handle(jobject h); | |
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296 void write_bci(int bci) { write_int(bci - InvocationEntryBci); } |
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297 |
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298 void write_metadata(Metadata* m); |
0 | 299 }; |
1972 | 300 |
301 #endif // SHARE_VM_CODE_DEBUGINFO_HPP |