Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/fieldDescriptor.cpp @ 4872:aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa
| author | never |
|---|---|
| date | Wed, 01 Feb 2012 07:59:01 -0800 |
| parents | e6b1331a51d2 |
| children | 71afdabfd05b |
| rev | line source |
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| 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 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
| 28 #include "memory/resourceArea.hpp" | |
| 29 #include "memory/universe.inline.hpp" | |
| 30 #include "oops/instanceKlass.hpp" | |
| 31 #include "runtime/fieldDescriptor.hpp" | |
| 32 #include "runtime/handles.inline.hpp" | |
| 33 #include "runtime/signature.hpp" | |
| 0 | 34 |
| 35 | |
| 36 oop fieldDescriptor::loader() const { | |
| 37 return instanceKlass::cast(_cp->pool_holder())->class_loader(); | |
| 38 } | |
| 39 | |
| 40 typeArrayOop fieldDescriptor::annotations() const { | |
| 41 instanceKlass* ik = instanceKlass::cast(field_holder()); | |
| 42 objArrayOop md = ik->fields_annotations(); | |
| 43 if (md == NULL) | |
| 44 return NULL; | |
| 3938 | 45 return typeArrayOop(md->obj_at(index())); |
| 0 | 46 } |
| 47 | |
| 48 constantTag fieldDescriptor::initial_value_tag() const { | |
| 3938 | 49 return constants()->tag_at(initial_value_index()); |
| 0 | 50 } |
| 51 | |
| 52 jint fieldDescriptor::int_initial_value() const { | |
| 3938 | 53 return constants()->int_at(initial_value_index()); |
| 0 | 54 } |
| 55 | |
| 56 jlong fieldDescriptor::long_initial_value() const { | |
| 3938 | 57 return constants()->long_at(initial_value_index()); |
| 0 | 58 } |
| 59 | |
| 60 jfloat fieldDescriptor::float_initial_value() const { | |
| 3938 | 61 return constants()->float_at(initial_value_index()); |
| 0 | 62 } |
| 63 | |
| 64 jdouble fieldDescriptor::double_initial_value() const { | |
| 3938 | 65 return constants()->double_at(initial_value_index()); |
| 0 | 66 } |
| 67 | |
| 68 oop fieldDescriptor::string_initial_value(TRAPS) const { | |
| 3938 | 69 return constants()->string_at(initial_value_index(), CHECK_0); |
| 0 | 70 } |
| 71 | |
| 72 void fieldDescriptor::initialize(klassOop k, int index) { | |
| 73 instanceKlass* ik = instanceKlass::cast(k); | |
| 74 _cp = ik->constants(); | |
| 3938 | 75 FieldInfo* f = ik->field(index); |
| 76 assert(!f->is_internal(), "regular Java fields only"); | |
| 0 | 77 |
| 3938 | 78 _access_flags = accessFlags_from(f->access_flags()); |
| 79 guarantee(f->name_index() != 0 && f->signature_index() != 0, "bad constant pool index for fieldDescriptor"); | |
| 0 | 80 _index = index; |
| 81 } | |
| 82 | |
| 83 #ifndef PRODUCT | |
| 84 | |
| 85 void fieldDescriptor::print_on(outputStream* st) const { | |
| 3938 | 86 access_flags().print_on(st); |
| 87 name()->print_value_on(st); | |
| 0 | 88 st->print(" "); |
| 3938 | 89 signature()->print_value_on(st); |
| 0 | 90 st->print(" @%d ", offset()); |
| 91 if (WizardMode && has_initial_value()) { | |
| 92 st->print("(initval "); | |
| 93 constantTag t = initial_value_tag(); | |
| 94 if (t.is_int()) { | |
| 95 st->print("int %d)", int_initial_value()); | |
| 96 } else if (t.is_long()){ | |
| 97 st->print_jlong(long_initial_value()); | |
| 98 } else if (t.is_float()){ | |
| 99 st->print("float %f)", float_initial_value()); | |
| 100 } else if (t.is_double()){ | |
| 101 st->print("double %lf)", double_initial_value()); | |
| 102 } | |
| 103 } | |
| 104 } | |
| 105 | |
| 106 void fieldDescriptor::print_on_for(outputStream* st, oop obj) { | |
| 107 print_on(st); | |
| 108 BasicType ft = field_type(); | |
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109 jint as_int = 0; |
| 0 | 110 switch (ft) { |
| 111 case T_BYTE: | |
| 112 as_int = (jint)obj->byte_field(offset()); | |
| 113 st->print(" %d", obj->byte_field(offset())); | |
| 114 break; | |
| 115 case T_CHAR: | |
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116 as_int = (jint)obj->char_field(offset()); |
| 0 | 117 { |
| 118 jchar c = obj->char_field(offset()); | |
| 119 as_int = c; | |
| 120 st->print(" %c %d", isprint(c) ? c : ' ', c); | |
| 121 } | |
| 122 break; | |
| 123 case T_DOUBLE: | |
| 124 st->print(" %lf", obj->double_field(offset())); | |
| 125 break; | |
| 126 case T_FLOAT: | |
| 127 as_int = obj->int_field(offset()); | |
| 128 st->print(" %f", obj->float_field(offset())); | |
| 129 break; | |
| 130 case T_INT: | |
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131 as_int = obj->int_field(offset()); |
| 0 | 132 st->print(" %d", obj->int_field(offset())); |
| 133 break; | |
| 134 case T_LONG: | |
| 135 st->print(" "); | |
| 136 st->print_jlong(obj->long_field(offset())); | |
| 137 break; | |
| 138 case T_SHORT: | |
| 139 as_int = obj->short_field(offset()); | |
| 140 st->print(" %d", obj->short_field(offset())); | |
| 141 break; | |
| 142 case T_BOOLEAN: | |
| 143 as_int = obj->bool_field(offset()); | |
| 144 st->print(" %s", obj->bool_field(offset()) ? "true" : "false"); | |
| 145 break; | |
| 146 case T_ARRAY: | |
| 147 st->print(" "); | |
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148 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 149 obj->obj_field(offset())->print_value_on(st); |
| 150 break; | |
| 151 case T_OBJECT: | |
| 152 st->print(" "); | |
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153 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 154 obj->obj_field(offset())->print_value_on(st); |
| 155 break; | |
| 156 default: | |
| 157 ShouldNotReachHere(); | |
| 158 break; | |
| 159 } | |
| 160 // Print a hint as to the underlying integer representation. This can be wrong for | |
| 161 // pointers on an LP64 machine | |
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162 if (ft == T_LONG || ft == T_DOUBLE LP64_ONLY(|| !is_java_primitive(ft)) ) { |
| 0 | 163 st->print(" (%x %x)", obj->int_field(offset()), obj->int_field(offset()+sizeof(jint))); |
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164 } else if (as_int < 0 || as_int > 9) { |
| 0 | 165 st->print(" (%x)", as_int); |
| 166 } | |
| 167 } | |
| 168 | |
| 169 #endif /* PRODUCT */ |