Mercurial > hg > truffle
annotate src/share/vm/code/debugInfo.hpp @ 21205:f34ae5c01864
include reexecute, rethrow_exception and return_oop info when disassembling debug scopes
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Mon, 04 May 2015 10:39:12 +0200 |
| parents | 15ef24874df7 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
14655
7380034e5b31
8035735: Metaspace::contains become extremely slow in some cases
coleenp
parents:
14223
diff
changeset
|
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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
931
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
931
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
931
diff
changeset
|
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 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
43 class ConstantOopReadValue; |
|
19598
15ef24874df7
Add assertion to ObjectValue conversion
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18041
diff
changeset
|
44 class ObjectValue; |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
45 |
| 0 | 46 class ScopeValue: public ResourceObj { |
| 47 public: | |
| 48 // Testers | |
| 49 virtual bool is_location() const { return false; } | |
| 50 virtual bool is_object() const { return false; } | |
| 51 virtual bool is_constant_int() const { return false; } | |
| 52 virtual bool is_constant_double() const { return false; } | |
| 53 virtual bool is_constant_long() const { return false; } | |
| 54 virtual bool is_constant_oop() const { return false; } | |
| 55 virtual bool equals(ScopeValue* other) const { return false; } | |
| 56 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
57 ConstantOopReadValue* as_ConstantOopReadValue() { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
58 assert(is_constant_oop(), "must be"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
59 return (ConstantOopReadValue*) this; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
60 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
61 |
|
19598
15ef24874df7
Add assertion to ObjectValue conversion
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18041
diff
changeset
|
62 ObjectValue* as_ObjectValue() { |
|
15ef24874df7
Add assertion to ObjectValue conversion
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18041
diff
changeset
|
63 assert(is_object(), "must be"); |
|
15ef24874df7
Add assertion to ObjectValue conversion
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18041
diff
changeset
|
64 return (ObjectValue*)this; |
|
15ef24874df7
Add assertion to ObjectValue conversion
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18041
diff
changeset
|
65 } |
|
15ef24874df7
Add assertion to ObjectValue conversion
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18041
diff
changeset
|
66 |
| 0 | 67 // Serialization of debugging information |
| 68 virtual void write_on(DebugInfoWriteStream* stream) = 0; | |
| 69 static ScopeValue* read_from(DebugInfoReadStream* stream); | |
| 70 }; | |
| 71 | |
| 72 | |
| 73 // A Location value describes a value in a given location; i.e. the corresponding | |
| 74 // logical entity (e.g., a method temporary) lives in this location. | |
| 75 | |
| 76 class LocationValue: public ScopeValue { | |
| 77 private: | |
| 78 Location _location; | |
| 79 public: | |
| 80 LocationValue(Location location) { _location = location; } | |
| 81 bool is_location() const { return true; } | |
| 82 Location location() const { return _location; } | |
| 83 | |
| 84 // Serialization of debugging information | |
| 85 LocationValue(DebugInfoReadStream* stream); | |
| 86 void write_on(DebugInfoWriteStream* stream); | |
| 87 | |
| 88 // Printing | |
| 89 void print_on(outputStream* st) const; | |
| 90 }; | |
| 91 | |
| 92 | |
| 93 // An ObjectValue describes an object eliminated by escape analysis. | |
| 94 | |
| 95 class ObjectValue: public ScopeValue { | |
| 96 private: | |
| 97 int _id; | |
| 98 ScopeValue* _klass; | |
| 99 GrowableArray<ScopeValue*> _field_values; | |
| 100 Handle _value; | |
| 101 bool _visited; | |
| 102 | |
| 103 public: | |
| 104 ObjectValue(int id, ScopeValue* klass) | |
| 105 : _id(id) | |
| 106 , _klass(klass) | |
| 107 , _field_values() | |
| 108 , _value() | |
| 109 , _visited(false) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
110 assert(klass->is_constant_oop(), "should be constant java mirror oop"); |
| 0 | 111 } |
| 112 | |
| 113 ObjectValue(int id) | |
| 114 : _id(id) | |
| 115 , _klass(NULL) | |
| 116 , _field_values() | |
| 117 , _value() | |
| 118 , _visited(false) {} | |
| 119 | |
| 120 // Accessors | |
| 121 bool is_object() const { return true; } | |
| 122 int id() const { return _id; } | |
| 123 ScopeValue* klass() const { return _klass; } | |
| 124 GrowableArray<ScopeValue*>* field_values() { return &_field_values; } | |
| 125 ScopeValue* field_at(int i) const { return _field_values.at(i); } | |
| 126 int field_size() { return _field_values.length(); } | |
| 127 Handle value() const { return _value; } | |
| 128 bool is_visited() const { return _visited; } | |
| 129 | |
| 130 void set_value(oop value) { _value = Handle(value); } | |
| 131 void set_visited(bool visited) { _visited = false; } | |
| 132 | |
| 133 // Serialization of debugging information | |
| 134 void read_object(DebugInfoReadStream* stream); | |
| 135 void write_on(DebugInfoWriteStream* stream); | |
| 136 | |
| 137 // Printing | |
| 138 void print_on(outputStream* st) const; | |
| 139 void print_fields_on(outputStream* st) const; | |
| 140 }; | |
| 141 | |
| 142 | |
| 143 // A ConstantIntValue describes a constant int; i.e., the corresponding logical entity | |
| 144 // is either a source constant or its computation has been constant-folded. | |
| 145 | |
| 146 class ConstantIntValue: public ScopeValue { | |
| 147 private: | |
| 148 jint _value; | |
| 149 public: | |
| 150 ConstantIntValue(jint value) { _value = value; } | |
| 151 jint value() const { return _value; } | |
| 152 bool is_constant_int() const { return true; } | |
| 153 bool equals(ScopeValue* other) const { return false; } | |
| 154 | |
| 155 // Serialization of debugging information | |
| 156 ConstantIntValue(DebugInfoReadStream* stream); | |
| 157 void write_on(DebugInfoWriteStream* stream); | |
| 158 | |
| 159 // Printing | |
| 160 void print_on(outputStream* st) const; | |
| 161 }; | |
| 162 | |
| 163 class ConstantLongValue: public ScopeValue { | |
| 164 private: | |
| 165 jlong _value; | |
| 166 public: | |
| 167 ConstantLongValue(jlong value) { _value = value; } | |
| 168 jlong value() const { return _value; } | |
| 169 bool is_constant_long() const { return true; } | |
| 170 bool equals(ScopeValue* other) const { return false; } | |
| 171 | |
| 172 // Serialization of debugging information | |
| 173 ConstantLongValue(DebugInfoReadStream* stream); | |
| 174 void write_on(DebugInfoWriteStream* stream); | |
| 175 | |
| 176 // Printing | |
| 177 void print_on(outputStream* st) const; | |
| 178 }; | |
| 179 | |
| 180 class ConstantDoubleValue: public ScopeValue { | |
| 181 private: | |
| 182 jdouble _value; | |
| 183 public: | |
| 184 ConstantDoubleValue(jdouble value) { _value = value; } | |
| 185 jdouble value() const { return _value; } | |
| 186 bool is_constant_double() const { return true; } | |
| 187 bool equals(ScopeValue* other) const { return false; } | |
| 188 | |
| 189 // Serialization of debugging information | |
| 190 ConstantDoubleValue(DebugInfoReadStream* stream); | |
| 191 void write_on(DebugInfoWriteStream* stream); | |
| 192 | |
| 193 // Printing | |
| 194 void print_on(outputStream* st) const; | |
| 195 }; | |
| 196 | |
| 197 // A ConstantOopWriteValue is created by the compiler to | |
| 198 // be written as debugging information. | |
| 199 | |
| 200 class ConstantOopWriteValue: public ScopeValue { | |
| 201 private: | |
| 202 jobject _value; | |
| 203 public: | |
| 204 ConstantOopWriteValue(jobject value) { _value = value; } | |
| 205 jobject value() const { return _value; } | |
| 206 bool is_constant_oop() const { return true; } | |
| 207 bool equals(ScopeValue* other) const { return false; } | |
| 208 | |
| 209 // Serialization of debugging information | |
| 210 void write_on(DebugInfoWriteStream* stream); | |
| 211 | |
| 212 // Printing | |
| 213 void print_on(outputStream* st) const; | |
| 214 }; | |
| 215 | |
| 216 // A ConstantOopReadValue is created by the VM when reading | |
| 217 // debug information | |
| 218 | |
| 219 class ConstantOopReadValue: public ScopeValue { | |
| 220 private: | |
| 221 Handle _value; | |
| 222 public: | |
| 223 Handle value() const { return _value; } | |
| 224 bool is_constant_oop() const { return true; } | |
| 225 bool equals(ScopeValue* other) const { return false; } | |
| 226 | |
| 227 // Serialization of debugging information | |
| 228 ConstantOopReadValue(DebugInfoReadStream* stream); | |
| 229 void write_on(DebugInfoWriteStream* stream); | |
| 230 | |
| 231 // Printing | |
| 232 void print_on(outputStream* st) const; | |
| 233 }; | |
| 234 | |
| 235 // MonitorValue describes the pair used for monitor_enter and monitor_exit. | |
| 236 | |
| 237 class MonitorValue: public ResourceObj { | |
| 238 private: | |
| 239 ScopeValue* _owner; | |
| 240 Location _basic_lock; | |
| 241 bool _eliminated; | |
| 242 public: | |
| 243 // Constructor | |
| 244 MonitorValue(ScopeValue* owner, Location basic_lock, bool eliminated = false); | |
| 245 | |
| 246 // Accessors | |
| 247 ScopeValue* owner() const { return _owner; } | |
| 248 Location basic_lock() const { return _basic_lock; } | |
| 249 bool eliminated() const { return _eliminated; } | |
| 250 | |
| 251 // Serialization of debugging information | |
| 252 MonitorValue(DebugInfoReadStream* stream); | |
| 253 void write_on(DebugInfoWriteStream* stream); | |
| 254 | |
| 255 // Printing | |
| 256 void print_on(outputStream* st) const; | |
| 257 }; | |
| 258 | |
| 259 // DebugInfoReadStream specializes CompressedReadStream for reading | |
| 260 // debugging information. Used by ScopeDesc. | |
| 261 | |
| 262 class DebugInfoReadStream : public CompressedReadStream { | |
| 263 private: | |
| 264 const nmethod* _code; | |
| 265 const nmethod* code() const { return _code; } | |
| 266 GrowableArray<ScopeValue*>* _obj_pool; | |
| 267 public: | |
| 268 DebugInfoReadStream(const nmethod* code, int offset, GrowableArray<ScopeValue*>* obj_pool = NULL) : | |
| 269 CompressedReadStream(code->scopes_data_begin(), offset) { | |
| 270 _code = code; | |
| 271 _obj_pool = obj_pool; | |
| 272 | |
| 273 } ; | |
| 274 | |
| 275 oop read_oop() { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
276 oop o = code()->oop_at(read_int()); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
277 assert(o == NULL || o->is_oop(), "oop only"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
278 return o; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
279 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
280 Method* read_method() { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
281 Method* o = (Method*)(code()->metadata_at(read_int())); |
|
14655
7380034e5b31
8035735: Metaspace::contains become extremely slow in some cases
coleenp
parents:
14223
diff
changeset
|
282 // is_metadata() is a faster check than is_metaspace_object() |
|
7380034e5b31
8035735: Metaspace::contains become extremely slow in some cases
coleenp
parents:
14223
diff
changeset
|
283 assert(o == NULL || o->is_metadata(), "meta data only"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
284 return o; |
| 0 | 285 } |
| 286 ScopeValue* read_object_value(); | |
| 287 ScopeValue* get_cached_object(); | |
| 288 // BCI encoding is mostly unsigned, but -1 is a distinguished value | |
|
931
72088be4b386
6873116: Modify reexecute implementation to use pcDesc to record the reexecute bit
cfang
parents:
900
diff
changeset
|
289 int read_bci() { return read_int() + InvocationEntryBci; } |
| 0 | 290 }; |
| 291 | |
| 292 // DebugInfoWriteStream specializes CompressedWriteStream for | |
| 293 // writing debugging information. Used by ScopeDescRecorder. | |
| 294 | |
| 295 class DebugInfoWriteStream : public CompressedWriteStream { | |
| 296 private: | |
| 297 DebugInformationRecorder* _recorder; | |
| 298 DebugInformationRecorder* recorder() const { return _recorder; } | |
| 299 public: | |
| 300 DebugInfoWriteStream(DebugInformationRecorder* recorder, int initial_size); | |
| 301 void write_handle(jobject h); | |
|
931
72088be4b386
6873116: Modify reexecute implementation to use pcDesc to record the reexecute bit
cfang
parents:
900
diff
changeset
|
302 void write_bci(int bci) { write_int(bci - InvocationEntryBci); } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
303 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
1972
diff
changeset
|
304 void write_metadata(Metadata* m); |
| 0 | 305 }; |
| 1972 | 306 |
| 307 #endif // SHARE_VM_CODE_DEBUGINFO_HPP |