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annotate src/share/vm/code/debugInfo.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children | da91efe96a93 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, 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 | |
| 43 class ScopeValue: public ResourceObj { | |
| 44 public: | |
| 45 // Testers | |
| 46 virtual bool is_location() const { return false; } | |
| 47 virtual bool is_object() const { return false; } | |
| 48 virtual bool is_constant_int() const { return false; } | |
| 49 virtual bool is_constant_double() const { return false; } | |
| 50 virtual bool is_constant_long() const { return false; } | |
| 51 virtual bool is_constant_oop() const { return false; } | |
| 52 virtual bool equals(ScopeValue* other) const { return false; } | |
| 53 | |
| 54 // Serialization of debugging information | |
| 55 virtual void write_on(DebugInfoWriteStream* stream) = 0; | |
| 56 static ScopeValue* read_from(DebugInfoReadStream* stream); | |
| 57 }; | |
| 58 | |
| 59 | |
| 60 // A Location value describes a value in a given location; i.e. the corresponding | |
| 61 // logical entity (e.g., a method temporary) lives in this location. | |
| 62 | |
| 63 class LocationValue: public ScopeValue { | |
| 64 private: | |
| 65 Location _location; | |
| 66 public: | |
| 67 LocationValue(Location location) { _location = location; } | |
| 68 bool is_location() const { return true; } | |
| 69 Location location() const { return _location; } | |
| 70 | |
| 71 // Serialization of debugging information | |
| 72 LocationValue(DebugInfoReadStream* stream); | |
| 73 void write_on(DebugInfoWriteStream* stream); | |
| 74 | |
| 75 // Printing | |
| 76 void print_on(outputStream* st) const; | |
| 77 }; | |
| 78 | |
| 79 | |
| 80 // An ObjectValue describes an object eliminated by escape analysis. | |
| 81 | |
| 82 class ObjectValue: public ScopeValue { | |
| 83 private: | |
| 84 int _id; | |
| 85 ScopeValue* _klass; | |
| 86 GrowableArray<ScopeValue*> _field_values; | |
| 87 Handle _value; | |
| 88 bool _visited; | |
| 89 | |
| 90 public: | |
| 91 ObjectValue(int id, ScopeValue* klass) | |
| 92 : _id(id) | |
| 93 , _klass(klass) | |
| 94 , _field_values() | |
| 95 , _value() | |
| 96 , _visited(false) { | |
| 97 assert(klass->is_constant_oop(), "should be constant klass oop"); | |
| 98 } | |
| 99 | |
| 100 ObjectValue(int id) | |
| 101 : _id(id) | |
| 102 , _klass(NULL) | |
| 103 , _field_values() | |
| 104 , _value() | |
| 105 , _visited(false) {} | |
| 106 | |
| 107 // Accessors | |
| 108 bool is_object() const { return true; } | |
| 109 int id() const { return _id; } | |
| 110 ScopeValue* klass() const { return _klass; } | |
| 111 GrowableArray<ScopeValue*>* field_values() { return &_field_values; } | |
| 112 ScopeValue* field_at(int i) const { return _field_values.at(i); } | |
| 113 int field_size() { return _field_values.length(); } | |
| 114 Handle value() const { return _value; } | |
| 115 bool is_visited() const { return _visited; } | |
| 116 | |
| 117 void set_value(oop value) { _value = Handle(value); } | |
| 118 void set_visited(bool visited) { _visited = false; } | |
| 119 | |
| 120 // Serialization of debugging information | |
| 121 void read_object(DebugInfoReadStream* stream); | |
| 122 void write_on(DebugInfoWriteStream* stream); | |
| 123 | |
| 124 // Printing | |
| 125 void print_on(outputStream* st) const; | |
| 126 void print_fields_on(outputStream* st) const; | |
| 127 }; | |
| 128 | |
| 129 | |
| 130 // A ConstantIntValue describes a constant int; i.e., the corresponding logical entity | |
| 131 // is either a source constant or its computation has been constant-folded. | |
| 132 | |
| 133 class ConstantIntValue: public ScopeValue { | |
| 134 private: | |
| 135 jint _value; | |
| 136 public: | |
| 137 ConstantIntValue(jint value) { _value = value; } | |
| 138 jint value() const { return _value; } | |
| 139 bool is_constant_int() const { return true; } | |
| 140 bool equals(ScopeValue* other) const { return false; } | |
| 141 | |
| 142 // Serialization of debugging information | |
| 143 ConstantIntValue(DebugInfoReadStream* stream); | |
| 144 void write_on(DebugInfoWriteStream* stream); | |
| 145 | |
| 146 // Printing | |
| 147 void print_on(outputStream* st) const; | |
| 148 }; | |
| 149 | |
| 150 class ConstantLongValue: public ScopeValue { | |
| 151 private: | |
| 152 jlong _value; | |
| 153 public: | |
| 154 ConstantLongValue(jlong value) { _value = value; } | |
| 155 jlong value() const { return _value; } | |
| 156 bool is_constant_long() const { return true; } | |
| 157 bool equals(ScopeValue* other) const { return false; } | |
| 158 | |
| 159 // Serialization of debugging information | |
| 160 ConstantLongValue(DebugInfoReadStream* stream); | |
| 161 void write_on(DebugInfoWriteStream* stream); | |
| 162 | |
| 163 // Printing | |
| 164 void print_on(outputStream* st) const; | |
| 165 }; | |
| 166 | |
| 167 class ConstantDoubleValue: public ScopeValue { | |
| 168 private: | |
| 169 jdouble _value; | |
| 170 public: | |
| 171 ConstantDoubleValue(jdouble value) { _value = value; } | |
| 172 jdouble value() const { return _value; } | |
| 173 bool is_constant_double() const { return true; } | |
| 174 bool equals(ScopeValue* other) const { return false; } | |
| 175 | |
| 176 // Serialization of debugging information | |
| 177 ConstantDoubleValue(DebugInfoReadStream* stream); | |
| 178 void write_on(DebugInfoWriteStream* stream); | |
| 179 | |
| 180 // Printing | |
| 181 void print_on(outputStream* st) const; | |
| 182 }; | |
| 183 | |
| 184 // A ConstantOopWriteValue is created by the compiler to | |
| 185 // be written as debugging information. | |
| 186 | |
| 187 class ConstantOopWriteValue: public ScopeValue { | |
| 188 private: | |
| 189 jobject _value; | |
| 190 public: | |
| 191 ConstantOopWriteValue(jobject value) { _value = value; } | |
| 192 jobject value() const { return _value; } | |
| 193 bool is_constant_oop() const { return true; } | |
| 194 bool equals(ScopeValue* other) const { return false; } | |
| 195 | |
| 196 // Serialization of debugging information | |
| 197 void write_on(DebugInfoWriteStream* stream); | |
| 198 | |
| 199 // Printing | |
| 200 void print_on(outputStream* st) const; | |
| 201 }; | |
| 202 | |
| 203 // A ConstantOopReadValue is created by the VM when reading | |
| 204 // debug information | |
| 205 | |
| 206 class ConstantOopReadValue: public ScopeValue { | |
| 207 private: | |
| 208 Handle _value; | |
| 209 public: | |
| 210 Handle value() const { return _value; } | |
| 211 bool is_constant_oop() const { return true; } | |
| 212 bool equals(ScopeValue* other) const { return false; } | |
| 213 | |
| 214 // Serialization of debugging information | |
| 215 ConstantOopReadValue(DebugInfoReadStream* stream); | |
| 216 void write_on(DebugInfoWriteStream* stream); | |
| 217 | |
| 218 // Printing | |
| 219 void print_on(outputStream* st) const; | |
| 220 }; | |
| 221 | |
| 222 // MonitorValue describes the pair used for monitor_enter and monitor_exit. | |
| 223 | |
| 224 class MonitorValue: public ResourceObj { | |
| 225 private: | |
| 226 ScopeValue* _owner; | |
| 227 Location _basic_lock; | |
| 228 bool _eliminated; | |
| 229 public: | |
| 230 // Constructor | |
| 231 MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated = false); | |
| 232 | |
| 233 // Accessors | |
| 234 ScopeValue* owner() const { return _owner; } | |
| 235 Location basic_lock() const { return _basic_lock; } | |
| 236 bool eliminated() const { return _eliminated; } | |
| 237 | |
| 238 // Serialization of debugging information | |
| 239 MonitorValue(DebugInfoReadStream* stream); | |
| 240 void write_on(DebugInfoWriteStream* stream); | |
| 241 | |
| 242 // Printing | |
| 243 void print_on(outputStream* st) const; | |
| 244 }; | |
| 245 | |
| 246 // DebugInfoReadStream specializes CompressedReadStream for reading | |
| 247 // debugging information. Used by ScopeDesc. | |
| 248 | |
| 249 class DebugInfoReadStream : public CompressedReadStream { | |
| 250 private: | |
| 251 const nmethod* _code; | |
| 252 const nmethod* code() const { return _code; } | |
| 253 GrowableArray<ScopeValue*>* _obj_pool; | |
| 254 public: | |
| 255 DebugInfoReadStream(const nmethod* code, int offset, GrowableArray<ScopeValue*>* obj_pool = NULL) : | |
| 256 CompressedReadStream(code->scopes_data_begin(), offset) { | |
| 257 _code = code; | |
| 258 _obj_pool = obj_pool; | |
| 259 | |
| 260 } ; | |
| 261 | |
| 262 oop read_oop() { | |
| 263 return code()->oop_at(read_int()); | |
| 264 } | |
| 265 ScopeValue* read_object_value(); | |
| 266 ScopeValue* get_cached_object(); | |
| 267 // BCI encoding is mostly unsigned, but -1 is a distinguished value | |
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268 int read_bci() { return read_int() + InvocationEntryBci; } |
| 0 | 269 }; |
| 270 | |
| 271 // DebugInfoWriteStream specializes CompressedWriteStream for | |
| 272 // writing debugging information. Used by ScopeDescRecorder. | |
| 273 | |
| 274 class DebugInfoWriteStream : public CompressedWriteStream { | |
| 275 private: | |
| 276 DebugInformationRecorder* _recorder; | |
| 277 DebugInformationRecorder* recorder() const { return _recorder; } | |
| 278 public: | |
| 279 DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size); | |
| 280 void write_handle(jobject h); | |
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281 void write_bci(int bci) { write_int(bci - InvocationEntryBci); } |
| 0 | 282 }; |
| 1972 | 283 |
| 284 #endif // SHARE_VM_CODE_DEBUGINFO_HPP |