Mercurial > hg > graal-compiler
annotate src/share/vm/code/scopeDesc.cpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
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| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | f70b0d9ab095 |
| children | 3e8fbc61cee8 |
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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 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_scopeDesc.cpp.incl" | |
| 27 | |
| 28 | |
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29 ScopeDesc::ScopeDesc(const nmethod* code, int decode_offset, int obj_decode_offset, bool reexecute, bool return_oop) { |
| 0 | 30 _code = code; |
| 31 _decode_offset = decode_offset; | |
| 32 _objects = decode_object_values(obj_decode_offset); | |
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33 _reexecute = reexecute; |
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34 _return_oop = return_oop; |
| 0 | 35 decode_body(); |
| 36 } | |
| 37 | |
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38 ScopeDesc::ScopeDesc(const nmethod* code, int decode_offset, bool reexecute, bool return_oop) { |
| 0 | 39 _code = code; |
| 40 _decode_offset = decode_offset; | |
| 41 _objects = decode_object_values(DebugInformationRecorder::serialized_null); | |
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42 _reexecute = reexecute; |
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43 _return_oop = return_oop; |
| 0 | 44 decode_body(); |
| 45 } | |
| 46 | |
| 47 | |
| 48 ScopeDesc::ScopeDesc(const ScopeDesc* parent) { | |
| 49 _code = parent->_code; | |
| 50 _decode_offset = parent->_sender_decode_offset; | |
| 51 _objects = parent->_objects; | |
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52 _reexecute = false; //reexecute only applies to the first scope |
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53 _return_oop = false; |
| 0 | 54 decode_body(); |
| 55 } | |
| 56 | |
| 57 | |
| 58 void ScopeDesc::decode_body() { | |
| 59 if (decode_offset() == DebugInformationRecorder::serialized_null) { | |
| 60 // This is a sentinel record, which is only relevant to | |
| 61 // approximate queries. Decode a reasonable frame. | |
| 62 _sender_decode_offset = DebugInformationRecorder::serialized_null; | |
| 63 _method = methodHandle(_code->method()); | |
| 64 _bci = InvocationEntryBci; | |
| 65 _locals_decode_offset = DebugInformationRecorder::serialized_null; | |
| 66 _expressions_decode_offset = DebugInformationRecorder::serialized_null; | |
| 67 _monitors_decode_offset = DebugInformationRecorder::serialized_null; | |
| 68 } else { | |
| 69 // decode header | |
| 70 DebugInfoReadStream* stream = stream_at(decode_offset()); | |
| 71 | |
| 72 _sender_decode_offset = stream->read_int(); | |
| 73 _method = methodHandle((methodOop) stream->read_oop()); | |
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74 _bci = stream->read_bci(); |
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75 |
| 0 | 76 // decode offsets for body and sender |
| 77 _locals_decode_offset = stream->read_int(); | |
| 78 _expressions_decode_offset = stream->read_int(); | |
| 79 _monitors_decode_offset = stream->read_int(); | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 | |
| 84 GrowableArray<ScopeValue*>* ScopeDesc::decode_scope_values(int decode_offset) { | |
| 85 if (decode_offset == DebugInformationRecorder::serialized_null) return NULL; | |
| 86 DebugInfoReadStream* stream = stream_at(decode_offset); | |
| 87 int length = stream->read_int(); | |
| 88 GrowableArray<ScopeValue*>* result = new GrowableArray<ScopeValue*> (length); | |
| 89 for (int index = 0; index < length; index++) { | |
| 90 result->push(ScopeValue::read_from(stream)); | |
| 91 } | |
| 92 return result; | |
| 93 } | |
| 94 | |
| 95 GrowableArray<ScopeValue*>* ScopeDesc::decode_object_values(int decode_offset) { | |
| 96 if (decode_offset == DebugInformationRecorder::serialized_null) return NULL; | |
| 97 GrowableArray<ScopeValue*>* result = new GrowableArray<ScopeValue*>(); | |
| 98 DebugInfoReadStream* stream = new DebugInfoReadStream(_code, decode_offset, result); | |
| 99 int length = stream->read_int(); | |
| 100 for (int index = 0; index < length; index++) { | |
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101 // Objects values are pushed to 'result' array during read so that |
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102 // object's fields could reference it (OBJECT_ID_CODE). |
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103 (void)ScopeValue::read_from(stream); |
| 0 | 104 } |
| 105 assert(result->length() == length, "inconsistent debug information"); | |
| 106 return result; | |
| 107 } | |
| 108 | |
| 109 | |
| 110 GrowableArray<MonitorValue*>* ScopeDesc::decode_monitor_values(int decode_offset) { | |
| 111 if (decode_offset == DebugInformationRecorder::serialized_null) return NULL; | |
| 112 DebugInfoReadStream* stream = stream_at(decode_offset); | |
| 113 int length = stream->read_int(); | |
| 114 GrowableArray<MonitorValue*>* result = new GrowableArray<MonitorValue*> (length); | |
| 115 for (int index = 0; index < length; index++) { | |
| 116 result->push(new MonitorValue(stream)); | |
| 117 } | |
| 118 return result; | |
| 119 } | |
| 120 | |
| 121 DebugInfoReadStream* ScopeDesc::stream_at(int decode_offset) const { | |
| 122 return new DebugInfoReadStream(_code, decode_offset, _objects); | |
| 123 } | |
| 124 | |
| 125 GrowableArray<ScopeValue*>* ScopeDesc::locals() { | |
| 126 return decode_scope_values(_locals_decode_offset); | |
| 127 } | |
| 128 | |
| 129 GrowableArray<ScopeValue*>* ScopeDesc::expressions() { | |
| 130 return decode_scope_values(_expressions_decode_offset); | |
| 131 } | |
| 132 | |
| 133 GrowableArray<MonitorValue*>* ScopeDesc::monitors() { | |
| 134 return decode_monitor_values(_monitors_decode_offset); | |
| 135 } | |
| 136 | |
| 137 GrowableArray<ScopeValue*>* ScopeDesc::objects() { | |
| 138 return _objects; | |
| 139 } | |
| 140 | |
| 141 bool ScopeDesc::is_top() const { | |
| 142 return _sender_decode_offset == DebugInformationRecorder::serialized_null; | |
| 143 } | |
| 144 | |
| 145 ScopeDesc* ScopeDesc::sender() const { | |
| 146 if (is_top()) return NULL; | |
| 147 return new ScopeDesc(this); | |
| 148 } | |
| 149 | |
| 150 | |
| 151 #ifndef PRODUCT | |
| 152 | |
| 153 void ScopeDesc::print_value_on(outputStream* st) const { | |
| 154 tty->print(" "); | |
| 155 method()()->print_short_name(st); | |
| 156 int lineno = method()->line_number_from_bci(bci()); | |
| 157 if (lineno != -1) { | |
| 158 st->print_cr("@%d (line %d)", bci(), lineno); | |
| 159 } else { | |
| 160 st->print_cr("@%d", bci()); | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 void ScopeDesc::print_on(outputStream* st) const { | |
| 165 print_on(st, NULL); | |
| 166 } | |
| 167 | |
| 168 void ScopeDesc::print_on(outputStream* st, PcDesc* pd) const { | |
| 169 // header | |
| 170 if (pd != NULL) { | |
| 171 tty->print_cr("ScopeDesc(pc=" PTR_FORMAT " offset=%x):", pd->real_pc(_code), pd->pc_offset()); | |
| 172 } | |
| 173 | |
| 174 print_value_on(st); | |
| 175 // decode offsets | |
| 176 if (WizardMode) { | |
| 177 st->print("ScopeDesc[%d]@" PTR_FORMAT " ", _decode_offset, _code->instructions_begin()); | |
| 178 st->print_cr(" offset: %d", _decode_offset); | |
| 179 st->print_cr(" bci: %d", bci()); | |
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180 st->print_cr(" reexecute: %s", should_reexecute() ? "true" : "false"); |
| 0 | 181 st->print_cr(" locals: %d", _locals_decode_offset); |
| 182 st->print_cr(" stack: %d", _expressions_decode_offset); | |
| 183 st->print_cr(" monitor: %d", _monitors_decode_offset); | |
| 184 st->print_cr(" sender: %d", _sender_decode_offset); | |
| 185 } | |
| 186 // locals | |
| 187 { GrowableArray<ScopeValue*>* l = ((ScopeDesc*) this)->locals(); | |
| 188 if (l != NULL) { | |
| 189 tty->print_cr(" Locals"); | |
| 190 for (int index = 0; index < l->length(); index++) { | |
| 191 st->print(" - l%d: ", index); | |
| 192 l->at(index)->print_on(st); | |
| 193 st->cr(); | |
| 194 } | |
| 195 } | |
| 196 } | |
| 197 // expressions | |
| 198 { GrowableArray<ScopeValue*>* l = ((ScopeDesc*) this)->expressions(); | |
| 199 if (l != NULL) { | |
| 200 st->print_cr(" Expression stack"); | |
| 201 for (int index = 0; index < l->length(); index++) { | |
| 202 st->print(" - @%d: ", index); | |
| 203 l->at(index)->print_on(st); | |
| 204 st->cr(); | |
| 205 } | |
| 206 } | |
| 207 } | |
| 208 // monitors | |
| 209 { GrowableArray<MonitorValue*>* l = ((ScopeDesc*) this)->monitors(); | |
| 210 if (l != NULL) { | |
| 211 st->print_cr(" Monitor stack"); | |
| 212 for (int index = 0; index < l->length(); index++) { | |
| 213 st->print(" - @%d: ", index); | |
| 214 l->at(index)->print_on(st); | |
| 215 st->cr(); | |
| 216 } | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 #ifdef COMPILER2 | |
| 221 if (DoEscapeAnalysis && is_top() && _objects != NULL) { | |
| 222 tty->print_cr("Objects"); | |
| 223 for (int i = 0; i < _objects->length(); i++) { | |
| 224 ObjectValue* sv = (ObjectValue*) _objects->at(i); | |
| 225 tty->print(" - %d: ", sv->id()); | |
| 226 sv->print_fields_on(tty); | |
| 227 tty->cr(); | |
| 228 } | |
| 229 } | |
| 230 #endif // COMPILER2 | |
| 231 } | |
| 232 | |
| 233 #endif | |
| 234 | |
| 235 void ScopeDesc::verify() { | |
| 236 ResourceMark rm; | |
| 237 guarantee(method()->is_method(), "type check"); | |
| 238 | |
| 239 // check if we have any illegal elements on the expression stack | |
| 240 { GrowableArray<ScopeValue*>* l = expressions(); | |
| 241 if (l != NULL) { | |
| 242 for (int index = 0; index < l->length(); index++) { | |
| 243 //guarantee(!l->at(index)->is_illegal(), "expression element cannot be illegal"); | |
| 244 } | |
| 245 } | |
| 246 } | |
| 247 } |