Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/fieldDescriptor.cpp @ 18096:ca6d25be853b jdk8u25-b13
8044269: Analysis of archive files.
Summary: Add checksum verification.
Reviewed-by: iklam, dholmes, mschoene
| author | jiangli |
|---|---|
| date | Tue, 12 Aug 2014 17:46:16 -0400 |
| parents | b2e698d2276c |
| children | cefad50507d8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 8031 | 2 * Copyright (c) 1997, 2013, 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" | |
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30 #include "oops/annotations.hpp" |
| 1972 | 31 #include "oops/instanceKlass.hpp" |
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32 #include "oops/fieldStreams.hpp" |
| 1972 | 33 #include "runtime/fieldDescriptor.hpp" |
| 34 #include "runtime/handles.inline.hpp" | |
| 35 #include "runtime/signature.hpp" | |
| 0 | 36 |
| 37 | |
| 38 oop fieldDescriptor::loader() const { | |
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39 return _cp->pool_holder()->class_loader(); |
| 0 | 40 } |
| 41 | |
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42 Symbol* fieldDescriptor::generic_signature() const { |
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43 if (!has_generic_signature()) { |
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44 return NULL; |
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45 } |
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46 |
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47 int idx = 0; |
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48 InstanceKlass* ik = field_holder(); |
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49 for (AllFieldStream fs(ik); !fs.done(); fs.next()) { |
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50 if (idx == _index) { |
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51 return fs.generic_signature(); |
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52 } else { |
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53 idx ++; |
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54 } |
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55 } |
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56 assert(false, "should never happen"); |
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57 return NULL; |
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58 } |
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59 |
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60 AnnotationArray* fieldDescriptor::annotations() const { |
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61 InstanceKlass* ik = field_holder(); |
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62 Array<AnnotationArray*>* md = ik->fields_annotations(); |
| 0 | 63 if (md == NULL) |
| 64 return NULL; | |
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65 return md->at(index()); |
| 0 | 66 } |
| 67 | |
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68 AnnotationArray* fieldDescriptor::type_annotations() const { |
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69 InstanceKlass* ik = field_holder(); |
| 8031 | 70 Array<AnnotationArray*>* type_annos = ik->fields_type_annotations(); |
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71 if (type_annos == NULL) |
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72 return NULL; |
| 8031 | 73 return type_annos->at(index()); |
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74 } |
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75 |
| 0 | 76 constantTag fieldDescriptor::initial_value_tag() const { |
| 3938 | 77 return constants()->tag_at(initial_value_index()); |
| 0 | 78 } |
| 79 | |
| 80 jint fieldDescriptor::int_initial_value() const { | |
| 3938 | 81 return constants()->int_at(initial_value_index()); |
| 0 | 82 } |
| 83 | |
| 84 jlong fieldDescriptor::long_initial_value() const { | |
| 3938 | 85 return constants()->long_at(initial_value_index()); |
| 0 | 86 } |
| 87 | |
| 88 jfloat fieldDescriptor::float_initial_value() const { | |
| 3938 | 89 return constants()->float_at(initial_value_index()); |
| 0 | 90 } |
| 91 | |
| 92 jdouble fieldDescriptor::double_initial_value() const { | |
| 3938 | 93 return constants()->double_at(initial_value_index()); |
| 0 | 94 } |
| 95 | |
| 96 oop fieldDescriptor::string_initial_value(TRAPS) const { | |
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97 return constants()->uncached_string_at(initial_value_index(), CHECK_0); |
| 0 | 98 } |
| 99 | |
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100 void fieldDescriptor::reinitialize(InstanceKlass* ik, int index) { |
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101 if (_cp.is_null() || field_holder() != ik) { |
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102 _cp = constantPoolHandle(Thread::current(), ik->constants()); |
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103 // _cp should now reference ik's constant pool; i.e., ik is now field_holder. |
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104 assert(field_holder() == ik, "must be already initialized to this class"); |
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105 } |
| 3938 | 106 FieldInfo* f = ik->field(index); |
| 107 assert(!f->is_internal(), "regular Java fields only"); | |
| 0 | 108 |
| 3938 | 109 _access_flags = accessFlags_from(f->access_flags()); |
| 110 guarantee(f->name_index() != 0 && f->signature_index() != 0, "bad constant pool index for fieldDescriptor"); | |
| 0 | 111 _index = index; |
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112 verify(); |
| 0 | 113 } |
| 114 | |
| 115 #ifndef PRODUCT | |
| 116 | |
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117 void fieldDescriptor::verify() const { |
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118 if (_cp.is_null()) { |
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119 assert(_index == badInt, "constructor must be called"); // see constructor |
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120 } else { |
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121 assert(_index >= 0, "good index"); |
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122 assert(_index < field_holder()->java_fields_count(), "oob"); |
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123 } |
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124 } |
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125 |
| 0 | 126 void fieldDescriptor::print_on(outputStream* st) const { |
| 3938 | 127 access_flags().print_on(st); |
| 128 name()->print_value_on(st); | |
| 0 | 129 st->print(" "); |
| 3938 | 130 signature()->print_value_on(st); |
| 0 | 131 st->print(" @%d ", offset()); |
| 132 if (WizardMode && has_initial_value()) { | |
| 133 st->print("(initval "); | |
| 134 constantTag t = initial_value_tag(); | |
| 135 if (t.is_int()) { | |
| 136 st->print("int %d)", int_initial_value()); | |
| 137 } else if (t.is_long()){ | |
| 138 st->print_jlong(long_initial_value()); | |
| 139 } else if (t.is_float()){ | |
| 140 st->print("float %f)", float_initial_value()); | |
| 141 } else if (t.is_double()){ | |
| 142 st->print("double %lf)", double_initial_value()); | |
| 143 } | |
| 144 } | |
| 145 } | |
| 146 | |
| 147 void fieldDescriptor::print_on_for(outputStream* st, oop obj) { | |
| 148 print_on(st); | |
| 149 BasicType ft = field_type(); | |
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150 jint as_int = 0; |
| 0 | 151 switch (ft) { |
| 152 case T_BYTE: | |
| 153 as_int = (jint)obj->byte_field(offset()); | |
| 154 st->print(" %d", obj->byte_field(offset())); | |
| 155 break; | |
| 156 case T_CHAR: | |
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157 as_int = (jint)obj->char_field(offset()); |
| 0 | 158 { |
| 159 jchar c = obj->char_field(offset()); | |
| 160 as_int = c; | |
| 161 st->print(" %c %d", isprint(c) ? c : ' ', c); | |
| 162 } | |
| 163 break; | |
| 164 case T_DOUBLE: | |
| 165 st->print(" %lf", obj->double_field(offset())); | |
| 166 break; | |
| 167 case T_FLOAT: | |
| 168 as_int = obj->int_field(offset()); | |
| 169 st->print(" %f", obj->float_field(offset())); | |
| 170 break; | |
| 171 case T_INT: | |
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172 as_int = obj->int_field(offset()); |
| 0 | 173 st->print(" %d", obj->int_field(offset())); |
| 174 break; | |
| 175 case T_LONG: | |
| 176 st->print(" "); | |
| 177 st->print_jlong(obj->long_field(offset())); | |
| 178 break; | |
| 179 case T_SHORT: | |
| 180 as_int = obj->short_field(offset()); | |
| 181 st->print(" %d", obj->short_field(offset())); | |
| 182 break; | |
| 183 case T_BOOLEAN: | |
| 184 as_int = obj->bool_field(offset()); | |
| 185 st->print(" %s", obj->bool_field(offset()) ? "true" : "false"); | |
| 186 break; | |
| 187 case T_ARRAY: | |
| 188 st->print(" "); | |
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189 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 190 obj->obj_field(offset())->print_value_on(st); |
| 191 break; | |
| 192 case T_OBJECT: | |
| 193 st->print(" "); | |
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194 NOT_LP64(as_int = obj->int_field(offset())); |
| 0 | 195 obj->obj_field(offset())->print_value_on(st); |
| 196 break; | |
| 197 default: | |
| 198 ShouldNotReachHere(); | |
| 199 break; | |
| 200 } | |
| 201 // Print a hint as to the underlying integer representation. This can be wrong for | |
| 202 // pointers on an LP64 machine | |
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203 if (ft == T_LONG || ft == T_DOUBLE LP64_ONLY(|| !is_java_primitive(ft)) ) { |
| 0 | 204 st->print(" (%x %x)", obj->int_field(offset()), obj->int_field(offset()+sizeof(jint))); |
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205 } else if (as_int < 0 || as_int > 9) { |
| 0 | 206 st->print(" (%x)", as_int); |
| 207 } | |
| 208 } | |
| 209 | |
| 210 #endif /* PRODUCT */ |