Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Brian Carlstrom | fc0e321 | 2013-07-17 14:40:12 -0700 | [diff] [blame] | 17 | #ifndef ART_RUNTIME_MIRROR_CLASS_INL_H_ |
| 18 | #define ART_RUNTIME_MIRROR_CLASS_INL_H_ |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 19 | |
| 20 | #include "class.h" |
| 21 | |
Andreas Gampe | a1d2f95 | 2017-04-20 22:53:58 -0700 | [diff] [blame] | 22 | #include "art_field.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 23 | #include "art_method.h" |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 24 | #include "base/array_slice.h" |
| 25 | #include "base/length_prefixed_array.h" |
David Sehr | c431b9d | 2018-03-02 12:01:51 -0800 | [diff] [blame] | 26 | #include "base/utils.h" |
Andreas Gampe | 508fdf3 | 2017-06-05 16:42:13 -0700 | [diff] [blame] | 27 | #include "class_linker.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 28 | #include "class_loader.h" |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 29 | #include "common_throws.h" |
David Sehr | 9e734c7 | 2018-01-04 17:56:19 -0800 | [diff] [blame] | 30 | #include "dex/dex_file-inl.h" |
David Sehr | 8c0961f | 2018-01-23 16:11:38 -0800 | [diff] [blame] | 31 | #include "dex/invoke_type.h" |
| 32 | #include "dex_cache.h" |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 33 | #include "gc/heap-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 34 | #include "iftable.h" |
Andreas Gampe | c15a2f4 | 2017-04-21 12:09:39 -0700 | [diff] [blame] | 35 | #include "object-inl.h" |
Andreas Gampe | 8cf9cb3 | 2017-07-19 09:28:38 -0700 | [diff] [blame] | 36 | #include "object_array.h" |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 37 | #include "read_barrier-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 38 | #include "runtime.h" |
| 39 | #include "string.h" |
Mathieu Chartier | 8d1a996 | 2016-08-17 16:39:45 -0700 | [diff] [blame] | 40 | #include "subtype_check.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 41 | |
| 42 | namespace art { |
| 43 | namespace mirror { |
| 44 | |
Hiroshi Yamauchi | 25023c7 | 2014-05-09 11:45:53 -0700 | [diff] [blame] | 45 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 46 | inline uint32_t Class::GetObjectSize() { |
Vladimir Marko | 3481ba2 | 2015-04-13 12:22:36 +0100 | [diff] [blame] | 47 | // Note: Extra parentheses to avoid the comma being interpreted as macro parameter separator. |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 48 | DCHECK((!IsVariableSize<kVerifyFlags, kReadBarrierOption>())) << "class=" << PrettyTypeOf(); |
Hiroshi Yamauchi | e01a520 | 2015-03-19 12:35:04 -0700 | [diff] [blame] | 49 | return GetField32(ObjectSizeOffset()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 50 | } |
| 51 | |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 52 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 53 | inline uint32_t Class::GetObjectSizeAllocFastPath() { |
| 54 | // Note: Extra parentheses to avoid the comma being interpreted as macro parameter separator. |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 55 | DCHECK((!IsVariableSize<kVerifyFlags, kReadBarrierOption>())) << "class=" << PrettyTypeOf(); |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 56 | return GetField32(ObjectSizeAllocFastPathOffset()); |
| 57 | } |
| 58 | |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 59 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 60 | inline Class* Class::GetSuperClass() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 61 | // Can only get super class for loaded classes (hack for when runtime is |
| 62 | // initializing) |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 63 | DCHECK(IsLoaded<kVerifyFlags>() || |
| 64 | IsErroneous<kVerifyFlags>() || |
| 65 | !Runtime::Current()->IsStarted()) << IsLoaded(); |
| 66 | return GetFieldObject<Class, kVerifyFlags, kReadBarrierOption>( |
| 67 | OFFSET_OF_OBJECT_MEMBER(Class, super_class_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 68 | } |
| 69 | |
Roland Levillain | 8ca4e4e | 2017-02-03 15:12:38 +0000 | [diff] [blame] | 70 | inline void Class::SetSuperClass(ObjPtr<Class> new_super_class) { |
| 71 | // Super class is assigned once, except during class linker initialization. |
| 72 | if (kIsDebugBuild) { |
| 73 | ObjPtr<Class> old_super_class = |
| 74 | GetFieldObject<Class>(OFFSET_OF_OBJECT_MEMBER(Class, super_class_)); |
| 75 | DCHECK(old_super_class == nullptr || old_super_class == new_super_class); |
| 76 | } |
| 77 | DCHECK(new_super_class != nullptr); |
| 78 | SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(Class, super_class_), new_super_class); |
| 79 | } |
| 80 | |
Nicolas Geoffray | e51ca8b | 2016-11-22 14:49:31 +0000 | [diff] [blame] | 81 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 82 | inline ClassLoader* Class::GetClassLoader() { |
Nicolas Geoffray | e51ca8b | 2016-11-22 14:49:31 +0000 | [diff] [blame] | 83 | return GetFieldObject<ClassLoader, kVerifyFlags, kReadBarrierOption>( |
| 84 | OFFSET_OF_OBJECT_MEMBER(Class, class_loader_)); |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 85 | } |
| 86 | |
Mathieu Chartier | 137cdfa | 2017-01-26 14:03:11 -0800 | [diff] [blame] | 87 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Alex Light | 4f2e957 | 2017-03-16 13:13:31 -0700 | [diff] [blame] | 88 | inline ClassExt* Class::GetExtData() { |
| 89 | return GetFieldObject<ClassExt, kVerifyFlags, kReadBarrierOption>( |
| 90 | OFFSET_OF_OBJECT_MEMBER(Class, ext_data_)); |
| 91 | } |
| 92 | |
| 93 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 94 | inline DexCache* Class::GetDexCache() { |
Mathieu Chartier | 137cdfa | 2017-01-26 14:03:11 -0800 | [diff] [blame] | 95 | return GetFieldObject<DexCache, kVerifyFlags, kReadBarrierOption>( |
| 96 | OFFSET_OF_OBJECT_MEMBER(Class, dex_cache_)); |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 97 | } |
| 98 | |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 99 | inline uint32_t Class::GetCopiedMethodsStartOffset() { |
Roland Levillain | 6680e33 | 2017-04-24 16:27:43 +0100 | [diff] [blame] | 100 | // Object::GetFieldShort returns an int16_t value, but |
| 101 | // Class::copied_methods_offset_ is an uint16_t value; cast the |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 102 | // latter to uint16_t before returning it as an uint32_t value, so |
Roland Levillain | 6680e33 | 2017-04-24 16:27:43 +0100 | [diff] [blame] | 103 | // that uint16_t values between 2^15 and 2^16-1 are correctly |
| 104 | // handled. |
| 105 | return static_cast<uint16_t>( |
| 106 | GetFieldShort(OFFSET_OF_OBJECT_MEMBER(Class, copied_methods_offset_))); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 107 | } |
| 108 | |
| 109 | inline uint32_t Class::GetDirectMethodsStartOffset() { |
| 110 | return 0; |
| 111 | } |
| 112 | |
| 113 | inline uint32_t Class::GetVirtualMethodsStartOffset() { |
Roland Levillain | 6680e33 | 2017-04-24 16:27:43 +0100 | [diff] [blame] | 114 | // Object::GetFieldShort returns an int16_t value, but |
| 115 | // Class::virtual_method_offset_ is an uint16_t value; cast the |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 116 | // latter to uint16_t before returning it as an uint32_t value, so |
Roland Levillain | 6680e33 | 2017-04-24 16:27:43 +0100 | [diff] [blame] | 117 | // that uint16_t values between 2^15 and 2^16-1 are correctly |
| 118 | // handled. |
| 119 | return static_cast<uint16_t>( |
| 120 | GetFieldShort(OFFSET_OF_OBJECT_MEMBER(Class, virtual_methods_offset_))); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | template<VerifyObjectFlags kVerifyFlags> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 124 | inline ArraySlice<ArtMethod> Class::GetDirectMethodsSlice(PointerSize pointer_size) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 125 | DCHECK(IsLoaded() || IsErroneous()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 126 | return GetDirectMethodsSliceUnchecked(pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 127 | } |
| 128 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 129 | inline ArraySlice<ArtMethod> Class::GetDirectMethodsSliceUnchecked(PointerSize pointer_size) { |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 130 | return GetMethodsSliceRangeUnchecked(GetMethodsPtr(), |
| 131 | pointer_size, |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 132 | GetDirectMethodsStartOffset(), |
| 133 | GetVirtualMethodsStartOffset()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | template<VerifyObjectFlags kVerifyFlags> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 137 | inline ArraySlice<ArtMethod> Class::GetDeclaredMethodsSlice(PointerSize pointer_size) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 138 | DCHECK(IsLoaded() || IsErroneous()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 139 | return GetDeclaredMethodsSliceUnchecked(pointer_size); |
| 140 | } |
| 141 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 142 | inline ArraySlice<ArtMethod> Class::GetDeclaredMethodsSliceUnchecked(PointerSize pointer_size) { |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 143 | return GetMethodsSliceRangeUnchecked(GetMethodsPtr(), |
| 144 | pointer_size, |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 145 | GetDirectMethodsStartOffset(), |
| 146 | GetCopiedMethodsStartOffset()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 147 | } |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 148 | |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 149 | template<VerifyObjectFlags kVerifyFlags> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 150 | inline ArraySlice<ArtMethod> Class::GetDeclaredVirtualMethodsSlice(PointerSize pointer_size) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 151 | DCHECK(IsLoaded() || IsErroneous()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 152 | return GetDeclaredVirtualMethodsSliceUnchecked(pointer_size); |
| 153 | } |
| 154 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 155 | inline ArraySlice<ArtMethod> Class::GetDeclaredVirtualMethodsSliceUnchecked( |
| 156 | PointerSize pointer_size) { |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 157 | return GetMethodsSliceRangeUnchecked(GetMethodsPtr(), |
| 158 | pointer_size, |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 159 | GetVirtualMethodsStartOffset(), |
| 160 | GetCopiedMethodsStartOffset()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 161 | } |
| 162 | |
| 163 | template<VerifyObjectFlags kVerifyFlags> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 164 | inline ArraySlice<ArtMethod> Class::GetVirtualMethodsSlice(PointerSize pointer_size) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 165 | DCHECK(IsLoaded() || IsErroneous()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 166 | return GetVirtualMethodsSliceUnchecked(pointer_size); |
| 167 | } |
| 168 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 169 | inline ArraySlice<ArtMethod> Class::GetVirtualMethodsSliceUnchecked(PointerSize pointer_size) { |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 170 | LengthPrefixedArray<ArtMethod>* methods = GetMethodsPtr(); |
| 171 | return GetMethodsSliceRangeUnchecked(methods, |
| 172 | pointer_size, |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 173 | GetVirtualMethodsStartOffset(), |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 174 | NumMethods(methods)); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | template<VerifyObjectFlags kVerifyFlags> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 178 | inline ArraySlice<ArtMethod> Class::GetCopiedMethodsSlice(PointerSize pointer_size) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 179 | DCHECK(IsLoaded() || IsErroneous()); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 180 | return GetCopiedMethodsSliceUnchecked(pointer_size); |
| 181 | } |
| 182 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 183 | inline ArraySlice<ArtMethod> Class::GetCopiedMethodsSliceUnchecked(PointerSize pointer_size) { |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 184 | LengthPrefixedArray<ArtMethod>* methods = GetMethodsPtr(); |
| 185 | return GetMethodsSliceRangeUnchecked(methods, |
| 186 | pointer_size, |
| 187 | GetCopiedMethodsStartOffset(), |
| 188 | NumMethods(methods)); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | inline LengthPrefixedArray<ArtMethod>* Class::GetMethodsPtr() { |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 192 | return reinterpret_cast<LengthPrefixedArray<ArtMethod>*>( |
Mathieu Chartier | f4b3dba | 2016-01-26 20:11:06 -0800 | [diff] [blame] | 193 | static_cast<uintptr_t>(GetField64(OFFSET_OF_OBJECT_MEMBER(Class, methods_)))); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 194 | } |
| 195 | |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 196 | template<VerifyObjectFlags kVerifyFlags> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 197 | inline ArraySlice<ArtMethod> Class::GetMethodsSlice(PointerSize pointer_size) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 198 | DCHECK(IsLoaded() || IsErroneous()); |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 199 | LengthPrefixedArray<ArtMethod>* methods = GetMethodsPtr(); |
| 200 | return GetMethodsSliceRangeUnchecked(methods, pointer_size, 0, NumMethods(methods)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 201 | } |
| 202 | |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 203 | inline ArraySlice<ArtMethod> Class::GetMethodsSliceRangeUnchecked( |
| 204 | LengthPrefixedArray<ArtMethod>* methods, |
| 205 | PointerSize pointer_size, |
| 206 | uint32_t start_offset, |
| 207 | uint32_t end_offset) { |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 208 | DCHECK_LE(start_offset, end_offset); |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 209 | DCHECK_LE(end_offset, NumMethods(methods)); |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 210 | uint32_t size = end_offset - start_offset; |
| 211 | if (size == 0u) { |
| 212 | return ArraySlice<ArtMethod>(); |
| 213 | } |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 214 | DCHECK(methods != nullptr); |
| 215 | DCHECK_LE(end_offset, methods->size()); |
| 216 | size_t method_size = ArtMethod::Size(pointer_size); |
| 217 | size_t method_alignment = ArtMethod::Alignment(pointer_size); |
| 218 | ArraySlice<ArtMethod> slice(&methods->At(0u, method_size, method_alignment), |
| 219 | methods->size(), |
| 220 | method_size); |
| 221 | return slice.SubArray(start_offset, size); |
| 222 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 223 | |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 224 | inline uint32_t Class::NumMethods() { |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 225 | return NumMethods(GetMethodsPtr()); |
| 226 | } |
| 227 | |
| 228 | inline uint32_t Class::NumMethods(LengthPrefixedArray<ArtMethod>* methods) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 229 | return (methods == nullptr) ? 0 : methods->size(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 230 | } |
| 231 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 232 | inline ArtMethod* Class::GetDirectMethodUnchecked(size_t i, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 233 | CheckPointerSize(pointer_size); |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 234 | return &GetDirectMethodsSliceUnchecked(pointer_size)[i]; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 235 | } |
| 236 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 237 | inline ArtMethod* Class::GetDirectMethod(size_t i, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 238 | CheckPointerSize(pointer_size); |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 239 | return &GetDirectMethodsSlice(pointer_size)[i]; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 240 | } |
| 241 | |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 242 | inline void Class::SetMethodsPtr(LengthPrefixedArray<ArtMethod>* new_methods, |
| 243 | uint32_t num_direct, |
| 244 | uint32_t num_virtual) { |
| 245 | DCHECK(GetMethodsPtr() == nullptr); |
| 246 | SetMethodsPtrUnchecked(new_methods, num_direct, num_virtual); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 247 | } |
| 248 | |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 249 | |
| 250 | inline void Class::SetMethodsPtrUnchecked(LengthPrefixedArray<ArtMethod>* new_methods, |
| 251 | uint32_t num_direct, |
| 252 | uint32_t num_virtual) { |
| 253 | DCHECK_LE(num_direct + num_virtual, (new_methods == nullptr) ? 0 : new_methods->size()); |
| 254 | SetMethodsPtrInternal(new_methods); |
| 255 | SetFieldShort<false>(OFFSET_OF_OBJECT_MEMBER(Class, copied_methods_offset_), |
| 256 | dchecked_integral_cast<uint16_t>(num_direct + num_virtual)); |
| 257 | SetFieldShort<false>(OFFSET_OF_OBJECT_MEMBER(Class, virtual_methods_offset_), |
| 258 | dchecked_integral_cast<uint16_t>(num_direct)); |
| 259 | } |
| 260 | |
| 261 | inline void Class::SetMethodsPtrInternal(LengthPrefixedArray<ArtMethod>* new_methods) { |
| 262 | SetField64<false>(OFFSET_OF_OBJECT_MEMBER(Class, methods_), |
Mathieu Chartier | f4b3dba | 2016-01-26 20:11:06 -0800 | [diff] [blame] | 263 | static_cast<uint64_t>(reinterpret_cast<uintptr_t>(new_methods))); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 264 | } |
| 265 | |
Mathieu Chartier | 4e30541 | 2014-02-19 10:54:44 -0800 | [diff] [blame] | 266 | template<VerifyObjectFlags kVerifyFlags> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 267 | inline ArtMethod* Class::GetVirtualMethod(size_t i, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 268 | CheckPointerSize(pointer_size); |
Hiroshi Yamauchi | f4c15a1 | 2014-10-20 16:56:58 -0700 | [diff] [blame] | 269 | DCHECK(IsResolved<kVerifyFlags>() || IsErroneous<kVerifyFlags>()) |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 270 | << Class::PrettyClass() << " status=" << GetStatus(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 271 | return GetVirtualMethodUnchecked(i, pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 272 | } |
| 273 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 274 | inline ArtMethod* Class::GetVirtualMethodDuringLinking(size_t i, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 275 | CheckPointerSize(pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 276 | DCHECK(IsLoaded() || IsErroneous()); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 277 | return GetVirtualMethodUnchecked(i, pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 278 | } |
| 279 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 280 | inline ArtMethod* Class::GetVirtualMethodUnchecked(size_t i, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 281 | CheckPointerSize(pointer_size); |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 282 | return &GetVirtualMethodsSliceUnchecked(pointer_size)[i]; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 283 | } |
| 284 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 285 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 286 | inline PointerArray* Class::GetVTable() { |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 287 | DCHECK(IsLoaded<kVerifyFlags>() || IsErroneous<kVerifyFlags>()); |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 288 | return GetFieldObject<PointerArray, kVerifyFlags, kReadBarrierOption>( |
| 289 | OFFSET_OF_OBJECT_MEMBER(Class, vtable_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 290 | } |
| 291 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 292 | inline PointerArray* Class::GetVTableDuringLinking() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 293 | DCHECK(IsLoaded() || IsErroneous()); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 294 | return GetFieldObject<PointerArray>(OFFSET_OF_OBJECT_MEMBER(Class, vtable_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 295 | } |
| 296 | |
Vladimir Marko | bcf1752 | 2018-06-01 13:14:32 +0100 | [diff] [blame] | 297 | inline void Class::SetVTable(ObjPtr<PointerArray> new_vtable) { |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 298 | SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(Class, vtable_), new_vtable); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 299 | } |
| 300 | |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 301 | inline bool Class::HasVTable() { |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 302 | return GetVTable() != nullptr || ShouldHaveEmbeddedVTable(); |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 303 | } |
| 304 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 305 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 306 | inline int32_t Class::GetVTableLength() { |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 307 | if (ShouldHaveEmbeddedVTable<kVerifyFlags, kReadBarrierOption>()) { |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 308 | return GetEmbeddedVTableLength(); |
| 309 | } |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 310 | return GetVTable<kVerifyFlags, kReadBarrierOption>() != nullptr ? |
| 311 | GetVTable<kVerifyFlags, kReadBarrierOption>()->GetLength() : 0; |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 312 | } |
| 313 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 314 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 315 | inline ArtMethod* Class::GetVTableEntry(uint32_t i, PointerSize pointer_size) { |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 316 | if (ShouldHaveEmbeddedVTable<kVerifyFlags, kReadBarrierOption>()) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 317 | return GetEmbeddedVTableEntry(i, pointer_size); |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 318 | } |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 319 | auto* vtable = GetVTable<kVerifyFlags, kReadBarrierOption>(); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 320 | DCHECK(vtable != nullptr); |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 321 | return vtable->template GetElementPtrSize<ArtMethod*, kVerifyFlags, kReadBarrierOption>( |
| 322 | i, pointer_size); |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | inline int32_t Class::GetEmbeddedVTableLength() { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 326 | return GetField32(MemberOffset(EmbeddedVTableLengthOffset())); |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 327 | } |
| 328 | |
| 329 | inline void Class::SetEmbeddedVTableLength(int32_t len) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 330 | SetField32<false>(MemberOffset(EmbeddedVTableLengthOffset()), len); |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 333 | inline ImTable* Class::GetImt(PointerSize pointer_size) { |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 334 | return GetFieldPtrWithSize<ImTable*>(ImtPtrOffset(pointer_size), pointer_size); |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 335 | } |
| 336 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 337 | inline void Class::SetImt(ImTable* imt, PointerSize pointer_size) { |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 338 | return SetFieldPtrWithSize<false>(ImtPtrOffset(pointer_size), imt, pointer_size); |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 339 | } |
| 340 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 341 | inline MemberOffset Class::EmbeddedVTableEntryOffset(uint32_t i, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 342 | return MemberOffset( |
| 343 | EmbeddedVTableOffset(pointer_size).Uint32Value() + i * VTableEntrySize(pointer_size)); |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 344 | } |
| 345 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 346 | inline ArtMethod* Class::GetEmbeddedVTableEntry(uint32_t i, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 347 | return GetFieldPtrWithSize<ArtMethod*>(EmbeddedVTableEntryOffset(i, pointer_size), pointer_size); |
| 348 | } |
| 349 | |
| 350 | inline void Class::SetEmbeddedVTableEntryUnchecked( |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 351 | uint32_t i, ArtMethod* method, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 352 | SetFieldPtrWithSize<false>(EmbeddedVTableEntryOffset(i, pointer_size), method, pointer_size); |
| 353 | } |
| 354 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 355 | inline void Class::SetEmbeddedVTableEntry(uint32_t i, ArtMethod* method, PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 356 | auto* vtable = GetVTableDuringLinking(); |
| 357 | CHECK_EQ(method, vtable->GetElementPtrSize<ArtMethod*>(i, pointer_size)); |
| 358 | SetEmbeddedVTableEntryUnchecked(i, method, pointer_size); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 359 | } |
| 360 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 361 | inline bool Class::Implements(ObjPtr<Class> klass) { |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 362 | DCHECK(klass != nullptr); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 363 | DCHECK(klass->IsInterface()) << PrettyClass(); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 364 | // All interfaces implemented directly and by our superclass, and |
| 365 | // recursively all super-interfaces of those interfaces, are listed |
| 366 | // in iftable_, so we can just do a linear scan through that. |
| 367 | int32_t iftable_count = GetIfTableCount(); |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 368 | ObjPtr<IfTable> iftable = GetIfTable(); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 369 | for (int32_t i = 0; i < iftable_count; i++) { |
| 370 | if (iftable->GetInterface(i) == klass) { |
| 371 | return true; |
| 372 | } |
| 373 | } |
| 374 | return false; |
| 375 | } |
| 376 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 377 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
| 378 | inline bool Class::IsVariableSize() { |
| 379 | // Classes, arrays, and strings vary in size, and so the object_size_ field cannot |
| 380 | // be used to Get their instance size |
Mathieu Chartier | d7a7f2f | 2018-09-07 11:57:18 -0700 | [diff] [blame^] | 381 | return IsClassClass<kVerifyFlags>() || |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 382 | IsArrayClass<kVerifyFlags, kReadBarrierOption>() || |
| 383 | IsStringClass(); |
| 384 | } |
| 385 | |
| 386 | inline void Class::SetObjectSize(uint32_t new_object_size) { |
| 387 | DCHECK(!IsVariableSize()); |
| 388 | // Not called within a transaction. |
| 389 | return SetField32<false>(OFFSET_OF_OBJECT_MEMBER(Class, object_size_), new_object_size); |
| 390 | } |
| 391 | |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 392 | // Determine whether "this" is assignable from "src", where both of these |
| 393 | // are array classes. |
| 394 | // |
| 395 | // Consider an array class, e.g. Y[][], where Y is a subclass of X. |
| 396 | // Y[][] = Y[][] --> true (identity) |
| 397 | // X[][] = Y[][] --> true (element superclass) |
| 398 | // Y = Y[][] --> false |
| 399 | // Y[] = Y[][] --> false |
| 400 | // Object = Y[][] --> true (everything is an object) |
| 401 | // Object[] = Y[][] --> true |
| 402 | // Object[][] = Y[][] --> true |
| 403 | // Object[][][] = Y[][] --> false (too many []s) |
| 404 | // Serializable = Y[][] --> true (all arrays are Serializable) |
| 405 | // Serializable[] = Y[][] --> true |
| 406 | // Serializable[][] = Y[][] --> false (unless Y is Serializable) |
| 407 | // |
| 408 | // Don't forget about primitive types. |
| 409 | // Object[] = int[] --> false |
| 410 | // |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 411 | inline bool Class::IsArrayAssignableFromArray(ObjPtr<Class> src) { |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 412 | DCHECK(IsArrayClass()) << PrettyClass(); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 413 | DCHECK(src->IsArrayClass()) << src->PrettyClass(); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 414 | return GetComponentType()->IsAssignableFrom(src->GetComponentType()); |
| 415 | } |
| 416 | |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 417 | inline bool Class::IsAssignableFromArray(ObjPtr<Class> src) { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 418 | DCHECK(!IsInterface()) << PrettyClass(); // handled first in IsAssignableFrom |
| 419 | DCHECK(src->IsArrayClass()) << src->PrettyClass(); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 420 | if (!IsArrayClass()) { |
| 421 | // If "this" is not also an array, it must be Object. |
| 422 | // src's super should be java_lang_Object, since it is an array. |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 423 | ObjPtr<Class> java_lang_Object = src->GetSuperClass(); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 424 | DCHECK(java_lang_Object != nullptr) << src->PrettyClass(); |
| 425 | DCHECK(java_lang_Object->GetSuperClass() == nullptr) << src->PrettyClass(); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 426 | return this == java_lang_Object; |
| 427 | } |
| 428 | return IsArrayAssignableFromArray(src); |
| 429 | } |
| 430 | |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 431 | template <bool throw_on_failure> |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 432 | inline bool Class::ResolvedFieldAccessTest(ObjPtr<Class> access_to, |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 433 | ArtField* field, |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 434 | ObjPtr<DexCache> dex_cache, |
| 435 | uint32_t field_idx) { |
| 436 | DCHECK(dex_cache != nullptr); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 437 | if (UNLIKELY(!this->CanAccess(access_to))) { |
| 438 | // The referrer class can't access the field's declaring class but may still be able |
| 439 | // to access the field if the FieldId specifies an accessible subclass of the declaring |
| 440 | // class rather than the declaring class itself. |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 441 | dex::TypeIndex class_idx = dex_cache->GetDexFile()->GetFieldId(field_idx).class_idx_; |
Mathieu Chartier | 279ac5c | 2016-09-08 17:34:25 -0700 | [diff] [blame] | 442 | // The referenced class has already been resolved with the field, but may not be in the dex |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 443 | // cache. Use LookupResolveType here to search the class table if it is not in the dex cache. |
Mathieu Chartier | 279ac5c | 2016-09-08 17:34:25 -0700 | [diff] [blame] | 444 | // should be no thread suspension due to the class being resolved. |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 445 | ObjPtr<Class> dex_access_to = Runtime::Current()->GetClassLinker()->LookupResolvedType( |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 446 | class_idx, |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 447 | dex_cache, |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 448 | access_to->GetClassLoader()); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 449 | DCHECK(dex_access_to != nullptr); |
| 450 | if (UNLIKELY(!this->CanAccess(dex_access_to))) { |
| 451 | if (throw_on_failure) { |
Mathieu Chartier | 6b3d12b | 2016-10-13 13:59:58 -0700 | [diff] [blame] | 452 | ThrowIllegalAccessErrorClass(this, dex_access_to); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 453 | } |
| 454 | return false; |
| 455 | } |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 456 | } |
| 457 | if (LIKELY(this->CanAccessMember(access_to, field->GetAccessFlags()))) { |
| 458 | return true; |
| 459 | } |
| 460 | if (throw_on_failure) { |
| 461 | ThrowIllegalAccessErrorField(this, field); |
| 462 | } |
| 463 | return false; |
| 464 | } |
| 465 | |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 466 | template <bool throw_on_failure> |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 467 | inline bool Class::ResolvedMethodAccessTest(ObjPtr<Class> access_to, |
| 468 | ArtMethod* method, |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 469 | ObjPtr<DexCache> dex_cache, |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 470 | uint32_t method_idx, |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 471 | InvokeType throw_invoke_type) { |
| 472 | DCHECK(throw_on_failure || throw_invoke_type == kStatic); |
| 473 | DCHECK(dex_cache != nullptr); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 474 | if (UNLIKELY(!this->CanAccess(access_to))) { |
| 475 | // The referrer class can't access the method's declaring class but may still be able |
| 476 | // to access the method if the MethodId specifies an accessible subclass of the declaring |
| 477 | // class rather than the declaring class itself. |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 478 | dex::TypeIndex class_idx = dex_cache->GetDexFile()->GetMethodId(method_idx).class_idx_; |
Mathieu Chartier | 279ac5c | 2016-09-08 17:34:25 -0700 | [diff] [blame] | 479 | // The referenced class has already been resolved with the method, but may not be in the dex |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 480 | // cache. |
| 481 | ObjPtr<Class> dex_access_to = Runtime::Current()->GetClassLinker()->LookupResolvedType( |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 482 | class_idx, |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 483 | dex_cache, |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 484 | access_to->GetClassLoader()); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 485 | DCHECK(dex_access_to != nullptr); |
| 486 | if (UNLIKELY(!this->CanAccess(dex_access_to))) { |
| 487 | if (throw_on_failure) { |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 488 | ThrowIllegalAccessErrorClassForMethodDispatch(this, |
Vladimir Marko | bcf1752 | 2018-06-01 13:14:32 +0100 | [diff] [blame] | 489 | dex_access_to, |
Mathieu Chartier | b890130 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 490 | method, |
| 491 | throw_invoke_type); |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 492 | } |
| 493 | return false; |
| 494 | } |
Vladimir Marko | 23a2821 | 2014-01-09 19:24:37 +0000 | [diff] [blame] | 495 | } |
| 496 | if (LIKELY(this->CanAccessMember(access_to, method->GetAccessFlags()))) { |
| 497 | return true; |
| 498 | } |
| 499 | if (throw_on_failure) { |
| 500 | ThrowIllegalAccessErrorMethod(this, method); |
| 501 | } |
| 502 | return false; |
| 503 | } |
| 504 | |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 505 | inline bool Class::CanAccessResolvedField(ObjPtr<Class> access_to, |
| 506 | ArtField* field, |
| 507 | ObjPtr<DexCache> dex_cache, |
| 508 | uint32_t field_idx) { |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 509 | return ResolvedFieldAccessTest<false>(access_to, field, dex_cache, field_idx); |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 510 | } |
| 511 | |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 512 | inline bool Class::CheckResolvedFieldAccess(ObjPtr<Class> access_to, |
| 513 | ArtField* field, |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 514 | ObjPtr<DexCache> dex_cache, |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 515 | uint32_t field_idx) { |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 516 | return ResolvedFieldAccessTest<true>(access_to, field, dex_cache, field_idx); |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 517 | } |
| 518 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 519 | inline bool Class::CanAccessResolvedMethod(ObjPtr<Class> access_to, |
| 520 | ArtMethod* method, |
| 521 | ObjPtr<DexCache> dex_cache, |
| 522 | uint32_t method_idx) { |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 523 | return ResolvedMethodAccessTest<false>(access_to, method, dex_cache, method_idx, kStatic); |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 524 | } |
| 525 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 526 | inline bool Class::CheckResolvedMethodAccess(ObjPtr<Class> access_to, |
| 527 | ArtMethod* method, |
Vladimir Marko | f79aa7f | 2017-07-04 16:58:55 +0100 | [diff] [blame] | 528 | ObjPtr<DexCache> dex_cache, |
| 529 | uint32_t method_idx, |
| 530 | InvokeType throw_invoke_type) { |
| 531 | return ResolvedMethodAccessTest<true>( |
| 532 | access_to, method, dex_cache, method_idx, throw_invoke_type); |
Vladimir Marko | 8978643 | 2014-01-31 15:03:55 +0000 | [diff] [blame] | 533 | } |
| 534 | |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 535 | inline bool Class::IsSubClass(ObjPtr<Class> klass) { |
Igor Murashkin | 86083f7 | 2017-10-27 10:59:04 -0700 | [diff] [blame] | 536 | // Since the SubtypeCheck::IsSubtypeOf needs to lookup the Depth, |
| 537 | // it is always O(Depth) in terms of speed to do the check. |
| 538 | // |
| 539 | // So always do the "slow" linear scan in normal release builds. |
| 540 | // |
| 541 | // Future note: If we could have the depth in O(1) we could use the 'fast' |
| 542 | // method instead as it avoids a loop and a read barrier. |
| 543 | bool result = false; |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 544 | DCHECK(!IsInterface()) << PrettyClass(); |
| 545 | DCHECK(!IsArrayClass()) << PrettyClass(); |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 546 | ObjPtr<Class> current = this; |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 547 | do { |
| 548 | if (current == klass) { |
Igor Murashkin | 86083f7 | 2017-10-27 10:59:04 -0700 | [diff] [blame] | 549 | result = true; |
| 550 | break; |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 551 | } |
| 552 | current = current->GetSuperClass(); |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 553 | } while (current != nullptr); |
Igor Murashkin | 86083f7 | 2017-10-27 10:59:04 -0700 | [diff] [blame] | 554 | |
Vladimir Marko | 305c38b | 2018-02-14 11:50:07 +0000 | [diff] [blame] | 555 | if (kIsDebugBuild && kBitstringSubtypeCheckEnabled) { |
Igor Murashkin | 86083f7 | 2017-10-27 10:59:04 -0700 | [diff] [blame] | 556 | ObjPtr<mirror::Class> dis(this); |
| 557 | |
| 558 | SubtypeCheckInfo::Result sc_result = SubtypeCheck<ObjPtr<Class>>::IsSubtypeOf(dis, klass); |
| 559 | if (sc_result != SubtypeCheckInfo::kUnknownSubtypeOf) { |
| 560 | // Note: The "kUnknownSubTypeOf" can be avoided if and only if: |
| 561 | // SubtypeCheck::EnsureInitialized(source) |
| 562 | // happens-before source.IsSubClass(target) |
| 563 | // SubtypeCheck::EnsureAssigned(target).GetState() == Assigned |
| 564 | // happens-before source.IsSubClass(target) |
| 565 | // |
| 566 | // When code generated by optimizing compiler executes this operation, both |
| 567 | // happens-before are guaranteed, so there is no fallback code there. |
| 568 | SubtypeCheckInfo::Result expected_result = |
| 569 | result ? SubtypeCheckInfo::kSubtypeOf : SubtypeCheckInfo::kNotSubtypeOf; |
| 570 | DCHECK_EQ(expected_result, sc_result) |
| 571 | << "source: " << PrettyClass() << "target: " << klass->PrettyClass(); |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | return result; |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 576 | } |
| 577 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 578 | inline ArtMethod* Class::FindVirtualMethodForInterface(ArtMethod* method, |
| 579 | PointerSize pointer_size) { |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 580 | ObjPtr<Class> declaring_class = method->GetDeclaringClass(); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 581 | DCHECK(declaring_class != nullptr) << PrettyClass(); |
Vladimir Marko | ba11882 | 2017-06-12 15:41:56 +0100 | [diff] [blame] | 582 | if (UNLIKELY(!declaring_class->IsInterface())) { |
| 583 | DCHECK(declaring_class->IsObjectClass()) << method->PrettyMethod(); |
| 584 | DCHECK(method->IsPublic() && !method->IsStatic()); |
| 585 | return FindVirtualMethodForVirtual(method, pointer_size); |
| 586 | } |
Alex Light | 0f7e8f5 | 2016-07-19 11:21:32 -0700 | [diff] [blame] | 587 | DCHECK(!method->IsCopied()); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 588 | // TODO cache to improve lookup speed |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 589 | const int32_t iftable_count = GetIfTableCount(); |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 590 | ObjPtr<IfTable> iftable = GetIfTable(); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 591 | for (int32_t i = 0; i < iftable_count; i++) { |
| 592 | if (iftable->GetInterface(i) == declaring_class) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 593 | return iftable->GetMethodArray(i)->GetElementPtrSize<ArtMethod*>( |
| 594 | method->GetMethodIndex(), pointer_size); |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 595 | } |
| 596 | } |
Mathieu Chartier | 2cebb24 | 2015-04-21 16:50:40 -0700 | [diff] [blame] | 597 | return nullptr; |
Ian Rogers | 693ff61 | 2013-02-01 10:56:12 -0800 | [diff] [blame] | 598 | } |
| 599 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 600 | inline ArtMethod* Class::FindVirtualMethodForVirtual(ArtMethod* method, PointerSize pointer_size) { |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 601 | // Only miranda or default methods may come from interfaces and be used as a virtual. |
| 602 | DCHECK(!method->GetDeclaringClass()->IsInterface() || method->IsDefault() || method->IsMiranda()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 603 | // The argument method may from a super class. |
| 604 | // Use the index to a potentially overridden one for this instance's class. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 605 | return GetVTableEntry(method->GetMethodIndex(), pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 606 | } |
| 607 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 608 | inline ArtMethod* Class::FindVirtualMethodForSuper(ArtMethod* method, PointerSize pointer_size) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 609 | DCHECK(!method->GetDeclaringClass()->IsInterface()); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 610 | return GetSuperClass()->GetVTableEntry(method->GetMethodIndex(), pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 611 | } |
| 612 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 613 | inline ArtMethod* Class::FindVirtualMethodForVirtualOrInterface(ArtMethod* method, |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 614 | PointerSize pointer_size) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 615 | if (method->IsDirect()) { |
| 616 | return method; |
| 617 | } |
Alex Light | 3612149 | 2016-02-22 13:43:29 -0800 | [diff] [blame] | 618 | if (method->GetDeclaringClass()->IsInterface() && !method->IsCopied()) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 619 | return FindVirtualMethodForInterface(method, pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 620 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 621 | return FindVirtualMethodForVirtual(method, pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 622 | } |
| 623 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 624 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 625 | inline IfTable* Class::GetIfTable() { |
Mathieu Chartier | 6beced4 | 2016-11-15 15:51:31 -0800 | [diff] [blame] | 626 | ObjPtr<IfTable> ret = GetFieldObject<IfTable, kVerifyFlags, kReadBarrierOption>(IfTableOffset()); |
| 627 | DCHECK(ret != nullptr) << PrettyClass(this); |
| 628 | return ret.Ptr(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 629 | } |
| 630 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 631 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 632 | inline int32_t Class::GetIfTableCount() { |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 633 | return GetIfTable<kVerifyFlags, kReadBarrierOption>()->Count(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 634 | } |
| 635 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 636 | inline void Class::SetIfTable(ObjPtr<IfTable> new_iftable) { |
Mathieu Chartier | 6beced4 | 2016-11-15 15:51:31 -0800 | [diff] [blame] | 637 | DCHECK(new_iftable != nullptr) << PrettyClass(this); |
Mathieu Chartier | 2ecfd27 | 2016-11-01 10:10:05 -0700 | [diff] [blame] | 638 | SetFieldObject<false>(IfTableOffset(), new_iftable); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 639 | } |
| 640 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 641 | inline LengthPrefixedArray<ArtField>* Class::GetIFieldsPtr() { |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 642 | DCHECK(IsLoaded() || IsErroneous()) << GetStatus(); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 643 | return GetFieldPtr<LengthPrefixedArray<ArtField>*>(OFFSET_OF_OBJECT_MEMBER(Class, ifields_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 644 | } |
| 645 | |
Hiroshi Yamauchi | 5496f69 | 2016-02-17 13:29:59 -0800 | [diff] [blame] | 646 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 647 | inline MemberOffset Class::GetFirstReferenceInstanceFieldOffset() { |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 648 | ObjPtr<Class> super_class = GetSuperClass<kVerifyFlags, kReadBarrierOption>(); |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 649 | return (super_class != nullptr) |
Hiroshi Yamauchi | 7a62e67 | 2016-06-10 17:22:48 -0700 | [diff] [blame] | 650 | ? MemberOffset(RoundUp(super_class->GetObjectSize<kVerifyFlags, kReadBarrierOption>(), |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 651 | kHeapReferenceSize)) |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 652 | : ClassOffset(); |
| 653 | } |
| 654 | |
Mathieu Chartier | dfe02f6 | 2016-02-01 20:15:11 -0800 | [diff] [blame] | 655 | template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 656 | inline MemberOffset Class::GetFirstReferenceStaticFieldOffset(PointerSize pointer_size) { |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 657 | DCHECK(IsResolved()); |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 658 | uint32_t base = sizeof(Class); // Static fields come after the class. |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 659 | if (ShouldHaveEmbeddedVTable<kVerifyFlags, kReadBarrierOption>()) { |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 660 | // Static fields come after the embedded tables. |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 661 | base = Class::ComputeClassSize( |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 662 | true, GetEmbeddedVTableLength(), 0, 0, 0, 0, 0, pointer_size); |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 663 | } |
| 664 | return MemberOffset(base); |
| 665 | } |
| 666 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 667 | inline MemberOffset Class::GetFirstReferenceStaticFieldOffsetDuringLinking( |
| 668 | PointerSize pointer_size) { |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 669 | DCHECK(IsLoaded()); |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 670 | uint32_t base = sizeof(Class); // Static fields come after the class. |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 671 | if (ShouldHaveEmbeddedVTable()) { |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 672 | // Static fields come after the embedded tables. |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 673 | base = Class::ComputeClassSize(true, GetVTableDuringLinking()->GetLength(), |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 674 | 0, 0, 0, 0, 0, pointer_size); |
Vladimir Marko | 76649e8 | 2014-11-10 18:32:59 +0000 | [diff] [blame] | 675 | } |
| 676 | return MemberOffset(base); |
| 677 | } |
| 678 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 679 | inline void Class::SetIFieldsPtr(LengthPrefixedArray<ArtField>* new_ifields) { |
| 680 | DCHECK(GetIFieldsPtrUnchecked() == nullptr); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 681 | return SetFieldPtr<false>(OFFSET_OF_OBJECT_MEMBER(Class, ifields_), new_ifields); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 682 | } |
| 683 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 684 | inline void Class::SetIFieldsPtrUnchecked(LengthPrefixedArray<ArtField>* new_ifields) { |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 685 | SetFieldPtr<false, true, kVerifyNone>(OFFSET_OF_OBJECT_MEMBER(Class, ifields_), new_ifields); |
| 686 | } |
| 687 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 688 | inline LengthPrefixedArray<ArtField>* Class::GetSFieldsPtrUnchecked() { |
| 689 | return GetFieldPtr<LengthPrefixedArray<ArtField>*>(OFFSET_OF_OBJECT_MEMBER(Class, sfields_)); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 690 | } |
| 691 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 692 | inline LengthPrefixedArray<ArtField>* Class::GetIFieldsPtrUnchecked() { |
| 693 | return GetFieldPtr<LengthPrefixedArray<ArtField>*>(OFFSET_OF_OBJECT_MEMBER(Class, ifields_)); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 694 | } |
| 695 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 696 | inline LengthPrefixedArray<ArtField>* Class::GetSFieldsPtr() { |
Mathieu Chartier | 987ca8b | 2015-03-15 14:19:14 -0700 | [diff] [blame] | 697 | DCHECK(IsLoaded() || IsErroneous()) << GetStatus(); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 698 | return GetSFieldsPtrUnchecked(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 699 | } |
| 700 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 701 | inline void Class::SetSFieldsPtr(LengthPrefixedArray<ArtField>* new_sfields) { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 702 | DCHECK((IsRetired() && new_sfields == nullptr) || |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 703 | GetFieldPtr<ArtField*>(OFFSET_OF_OBJECT_MEMBER(Class, sfields_)) == nullptr); |
| 704 | SetFieldPtr<false>(OFFSET_OF_OBJECT_MEMBER(Class, sfields_), new_sfields); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 705 | } |
| 706 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 707 | inline void Class::SetSFieldsPtrUnchecked(LengthPrefixedArray<ArtField>* new_sfields) { |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 708 | SetFieldPtr<false, true, kVerifyNone>(OFFSET_OF_OBJECT_MEMBER(Class, sfields_), new_sfields); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 709 | } |
| 710 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 711 | inline ArtField* Class::GetStaticField(uint32_t i) { |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 712 | return &GetSFieldsPtr()->At(i); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 713 | } |
| 714 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 715 | inline ArtField* Class::GetInstanceField(uint32_t i) { |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 716 | return &GetIFieldsPtr()->At(i); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 717 | } |
| 718 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 719 | template<VerifyObjectFlags kVerifyFlags> |
| 720 | inline uint32_t Class::GetReferenceInstanceOffsets() { |
| 721 | DCHECK(IsResolved<kVerifyFlags>() || IsErroneous<kVerifyFlags>()); |
| 722 | return GetField32<kVerifyFlags>(OFFSET_OF_OBJECT_MEMBER(Class, reference_instance_offsets_)); |
| 723 | } |
| 724 | |
| 725 | inline void Class::SetClinitThreadId(pid_t new_clinit_thread_id) { |
Chang Xing | 6d3e768 | 2017-07-11 10:31:29 -0700 | [diff] [blame] | 726 | SetField32Transaction(OFFSET_OF_OBJECT_MEMBER(Class, clinit_thread_id_), new_clinit_thread_id); |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 727 | } |
| 728 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 729 | inline String* Class::GetName() { |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 730 | return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(Class, name_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 731 | } |
Mathieu Chartier | 52a7f5c | 2015-08-18 18:35:52 -0700 | [diff] [blame] | 732 | |
Mathieu Chartier | 1a5337f | 2016-10-13 13:48:23 -0700 | [diff] [blame] | 733 | inline void Class::SetName(ObjPtr<String> name) { |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 734 | SetFieldObjectTransaction(OFFSET_OF_OBJECT_MEMBER(Class, name_), name); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 735 | } |
| 736 | |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 737 | template<VerifyObjectFlags kVerifyFlags> |
| 738 | inline Primitive::Type Class::GetPrimitiveType() { |
Roland Levillain | 33d6903 | 2015-06-18 18:20:59 +0100 | [diff] [blame] | 739 | static_assert(sizeof(Primitive::Type) == sizeof(int32_t), |
| 740 | "art::Primitive::Type and int32_t have different sizes."); |
Hiroshi Yamauchi | f0edfc3 | 2014-09-25 11:46:46 -0700 | [diff] [blame] | 741 | int32_t v32 = GetField32<kVerifyFlags>(OFFSET_OF_OBJECT_MEMBER(Class, primitive_type_)); |
Mathieu Chartier | 8261d02 | 2016-08-08 09:41:04 -0700 | [diff] [blame] | 742 | Primitive::Type type = static_cast<Primitive::Type>(v32 & kPrimitiveTypeMask); |
| 743 | DCHECK_EQ(static_cast<size_t>(v32 >> kPrimitiveTypeSizeShiftShift), |
| 744 | Primitive::ComponentSizeShift(type)); |
Hiroshi Yamauchi | f0edfc3 | 2014-09-25 11:46:46 -0700 | [diff] [blame] | 745 | return type; |
| 746 | } |
| 747 | |
| 748 | template<VerifyObjectFlags kVerifyFlags> |
| 749 | inline size_t Class::GetPrimitiveTypeSizeShift() { |
Roland Levillain | 33d6903 | 2015-06-18 18:20:59 +0100 | [diff] [blame] | 750 | static_assert(sizeof(Primitive::Type) == sizeof(int32_t), |
| 751 | "art::Primitive::Type and int32_t have different sizes."); |
Hiroshi Yamauchi | f0edfc3 | 2014-09-25 11:46:46 -0700 | [diff] [blame] | 752 | int32_t v32 = GetField32<kVerifyFlags>(OFFSET_OF_OBJECT_MEMBER(Class, primitive_type_)); |
Mathieu Chartier | 8261d02 | 2016-08-08 09:41:04 -0700 | [diff] [blame] | 753 | size_t size_shift = static_cast<Primitive::Type>(v32 >> kPrimitiveTypeSizeShiftShift); |
| 754 | DCHECK_EQ(size_shift, |
| 755 | Primitive::ComponentSizeShift(static_cast<Primitive::Type>(v32 & kPrimitiveTypeMask))); |
Hiroshi Yamauchi | f0edfc3 | 2014-09-25 11:46:46 -0700 | [diff] [blame] | 756 | return size_shift; |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 757 | } |
| 758 | |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 759 | inline void Class::CheckObjectAlloc() { |
Hiroshi Yamauchi | 4cd662e | 2014-04-03 16:28:10 -0700 | [diff] [blame] | 760 | DCHECK(!IsArrayClass()) |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 761 | << PrettyClass() |
Hiroshi Yamauchi | 4cd662e | 2014-04-03 16:28:10 -0700 | [diff] [blame] | 762 | << "A array shouldn't be allocated through this " |
| 763 | << "as it requires a pre-fence visitor that sets the class size."; |
| 764 | DCHECK(!IsClassClass()) |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 765 | << PrettyClass() |
Hiroshi Yamauchi | 4cd662e | 2014-04-03 16:28:10 -0700 | [diff] [blame] | 766 | << "A class object shouldn't be allocated through this " |
| 767 | << "as it requires a pre-fence visitor that sets the class size."; |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 768 | DCHECK(!IsStringClass()) |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 769 | << PrettyClass() |
Jeff Hao | 848f70a | 2014-01-15 13:49:50 -0800 | [diff] [blame] | 770 | << "A string shouldn't be allocated through this " |
| 771 | << "as it requires a pre-fence visitor that sets the class size."; |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 772 | DCHECK(IsInstantiable()) << PrettyClass(); |
Hiroshi Yamauchi | 967a0ad | 2013-09-10 16:24:21 -0700 | [diff] [blame] | 773 | // TODO: decide whether we want this check. It currently fails during bootstrap. |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 774 | // DCHECK(!Runtime::Current()->IsStarted() || IsInitializing()) << PrettyClass(); |
Hiroshi Yamauchi | 967a0ad | 2013-09-10 16:24:21 -0700 | [diff] [blame] | 775 | DCHECK_GE(this->object_size_, sizeof(Object)); |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 776 | } |
| 777 | |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 778 | template<bool kIsInstrumented, bool kCheckAddFinalizer> |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 779 | inline ObjPtr<Object> Class::Alloc(Thread* self, gc::AllocatorType allocator_type) { |
Hiroshi Yamauchi | 3b4c189 | 2013-09-12 21:33:12 -0700 | [diff] [blame] | 780 | CheckObjectAlloc(); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 781 | gc::Heap* heap = Runtime::Current()->GetHeap(); |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 782 | const bool add_finalizer = kCheckAddFinalizer && IsFinalizable(); |
| 783 | if (!kCheckAddFinalizer) { |
| 784 | DCHECK(!IsFinalizable()); |
| 785 | } |
Mathieu Chartier | 9d156d5 | 2016-10-06 17:44:26 -0700 | [diff] [blame] | 786 | // Note that the this pointer may be invalidated after the allocation. |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 787 | ObjPtr<Object> obj = |
Mathieu Chartier | 9d156d5 | 2016-10-06 17:44:26 -0700 | [diff] [blame] | 788 | heap->AllocObjectWithAllocator<kIsInstrumented, false>(self, |
| 789 | this, |
| 790 | this->object_size_, |
| 791 | allocator_type, |
| 792 | VoidFunctor()); |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 793 | if (add_finalizer && LIKELY(obj != nullptr)) { |
| 794 | heap->AddFinalizerReference(self, &obj); |
Pavel Vyssotski | 3ac90da | 2014-12-02 19:54:50 +0600 | [diff] [blame] | 795 | if (UNLIKELY(self->IsExceptionPending())) { |
| 796 | // Failed to allocate finalizer reference, it means that the whole allocation failed. |
| 797 | obj = nullptr; |
| 798 | } |
Mathieu Chartier | 8668c3c | 2014-04-24 16:48:11 -0700 | [diff] [blame] | 799 | } |
Vladimir Marko | bcf1752 | 2018-06-01 13:14:32 +0100 | [diff] [blame] | 800 | return obj; |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 801 | } |
| 802 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 803 | inline ObjPtr<Object> Class::AllocObject(Thread* self) { |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 804 | return Alloc<true>(self, Runtime::Current()->GetHeap()->GetCurrentAllocator()); |
| 805 | } |
| 806 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 807 | inline ObjPtr<Object> Class::AllocNonMovableObject(Thread* self) { |
Mathieu Chartier | cbb2d20 | 2013-11-14 17:45:16 -0800 | [diff] [blame] | 808 | return Alloc<true>(self, Runtime::Current()->GetHeap()->GetCurrentNonMovingAllocator()); |
Hiroshi Yamauchi | 967a0ad | 2013-09-10 16:24:21 -0700 | [diff] [blame] | 809 | } |
| 810 | |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 811 | inline uint32_t Class::ComputeClassSize(bool has_embedded_vtable, |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 812 | uint32_t num_vtable_entries, |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 813 | uint32_t num_8bit_static_fields, |
| 814 | uint32_t num_16bit_static_fields, |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 815 | uint32_t num_32bit_static_fields, |
| 816 | uint32_t num_64bit_static_fields, |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 817 | uint32_t num_ref_static_fields, |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 818 | PointerSize pointer_size) { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 819 | // Space used by java.lang.Class and its instance fields. |
| 820 | uint32_t size = sizeof(Class); |
| 821 | // Space used by embedded tables. |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 822 | if (has_embedded_vtable) { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 823 | size = RoundUp(size + sizeof(uint32_t), static_cast<size_t>(pointer_size)); |
| 824 | size += static_cast<size_t>(pointer_size); // size of pointer to IMT |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 825 | size += num_vtable_entries * VTableEntrySize(pointer_size); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 826 | } |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 827 | |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 828 | // Space used by reference statics. |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 829 | size += num_ref_static_fields * kHeapReferenceSize; |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 830 | if (!IsAligned<8>(size) && num_64bit_static_fields > 0) { |
| 831 | uint32_t gap = 8 - (size & 0x7); |
| 832 | size += gap; // will be padded |
| 833 | // Shuffle 4-byte fields forward. |
| 834 | while (gap >= sizeof(uint32_t) && num_32bit_static_fields != 0) { |
| 835 | --num_32bit_static_fields; |
| 836 | gap -= sizeof(uint32_t); |
| 837 | } |
| 838 | // Shuffle 2-byte fields forward. |
| 839 | while (gap >= sizeof(uint16_t) && num_16bit_static_fields != 0) { |
| 840 | --num_16bit_static_fields; |
| 841 | gap -= sizeof(uint16_t); |
| 842 | } |
| 843 | // Shuffle byte fields forward. |
| 844 | while (gap >= sizeof(uint8_t) && num_8bit_static_fields != 0) { |
| 845 | --num_8bit_static_fields; |
| 846 | gap -= sizeof(uint8_t); |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 847 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 848 | } |
Fred Shih | 37f05ef | 2014-07-16 18:38:08 -0700 | [diff] [blame] | 849 | // Guaranteed to be at least 4 byte aligned. No need for further alignments. |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 850 | // Space used for primitive static fields. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 851 | size += num_8bit_static_fields * sizeof(uint8_t) + num_16bit_static_fields * sizeof(uint16_t) + |
| 852 | num_32bit_static_fields * sizeof(uint32_t) + num_64bit_static_fields * sizeof(uint64_t); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 853 | return size; |
| 854 | } |
| 855 | |
Mathieu Chartier | d7a7f2f | 2018-09-07 11:57:18 -0700 | [diff] [blame^] | 856 | template<VerifyObjectFlags kVerifyFlags> |
Hiroshi Yamauchi | 25023c7 | 2014-05-09 11:45:53 -0700 | [diff] [blame] | 857 | inline bool Class::IsClassClass() { |
Mathieu Chartier | d7a7f2f | 2018-09-07 11:57:18 -0700 | [diff] [blame^] | 858 | // OK to look at from-space copies since java.lang.Class.class is not movable. |
| 859 | // See b/114413743 |
| 860 | ObjPtr<Class> java_lang_Class = GetClass<kVerifyFlags, kWithoutReadBarrier>()-> |
| 861 | template GetClass<kVerifyFlags, kWithoutReadBarrier>(); |
Hiroshi Yamauchi | 25023c7 | 2014-05-09 11:45:53 -0700 | [diff] [blame] | 862 | return this == java_lang_Class; |
| 863 | } |
| 864 | |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 865 | inline const DexFile& Class::GetDexFile() { |
Mathieu Chartier | bc632f0 | 2017-04-20 13:31:39 -0700 | [diff] [blame] | 866 | // From-space version is the same as the to-space version since the dex file never changes. |
| 867 | // Avoiding the read barrier here is important to prevent recursive AssertToSpaceInvariant issues |
| 868 | // from PrettyTypeOf. |
| 869 | return *GetDexCache<kDefaultVerifyFlags, kWithoutReadBarrier>()->GetDexFile(); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 870 | } |
| 871 | |
| 872 | inline bool Class::DescriptorEquals(const char* match) { |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 873 | if (IsArrayClass()) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 874 | return match[0] == '[' && GetComponentType()->DescriptorEquals(match + 1); |
Ian Rogers | 1ff3c98 | 2014-08-12 02:30:58 -0700 | [diff] [blame] | 875 | } else if (IsPrimitive()) { |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 876 | return strcmp(Primitive::Descriptor(GetPrimitiveType()), match) == 0; |
Nicolas Geoffray | 3a09092 | 2015-11-24 09:17:30 +0000 | [diff] [blame] | 877 | } else if (IsProxyClass()) { |
| 878 | return ProxyDescriptorEquals(match); |
Mathieu Chartier | f832284 | 2014-05-16 10:59:25 -0700 | [diff] [blame] | 879 | } else { |
| 880 | const DexFile& dex_file = GetDexFile(); |
| 881 | const DexFile::TypeId& type_id = dex_file.GetTypeId(GetClassDef()->class_idx_); |
| 882 | return strcmp(dex_file.GetTypeDescriptor(type_id), match) == 0; |
| 883 | } |
| 884 | } |
| 885 | |
Sebastien Hertz | 4e99b3d | 2014-06-24 14:35:40 +0200 | [diff] [blame] | 886 | inline void Class::AssertInitializedOrInitializingInThread(Thread* self) { |
| 887 | if (kIsDebugBuild && !IsInitialized()) { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 888 | CHECK(IsInitializing()) << PrettyClass() << " is not initializing: " << GetStatus(); |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 889 | CHECK_EQ(GetClinitThreadId(), self->GetTid()) |
| 890 | << PrettyClass() << " is initializing in a different thread"; |
Sebastien Hertz | 4e99b3d | 2014-06-24 14:35:40 +0200 | [diff] [blame] | 891 | } |
| 892 | } |
| 893 | |
Narayan Kamath | 6b2dc31 | 2017-03-14 13:26:12 +0000 | [diff] [blame] | 894 | inline ObjectArray<Class>* Class::GetProxyInterfaces() { |
Nicolas Geoffray | 3a09092 | 2015-11-24 09:17:30 +0000 | [diff] [blame] | 895 | CHECK(IsProxyClass()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 896 | // First static field. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 897 | auto* field = GetStaticField(0); |
| 898 | DCHECK_STREQ(field->GetName(), "interfaces"); |
| 899 | MemberOffset field_offset = field->GetOffset(); |
Nicolas Geoffray | 3a09092 | 2015-11-24 09:17:30 +0000 | [diff] [blame] | 900 | return GetFieldObject<ObjectArray<Class>>(field_offset); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 901 | } |
| 902 | |
Narayan Kamath | 6b2dc31 | 2017-03-14 13:26:12 +0000 | [diff] [blame] | 903 | inline ObjectArray<ObjectArray<Class>>* Class::GetProxyThrows() { |
Nicolas Geoffray | 3a09092 | 2015-11-24 09:17:30 +0000 | [diff] [blame] | 904 | CHECK(IsProxyClass()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 905 | // Second static field. |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 906 | auto* field = GetStaticField(1); |
| 907 | DCHECK_STREQ(field->GetName(), "throws"); |
| 908 | MemberOffset field_offset = field->GetOffset(); |
Nicolas Geoffray | 3a09092 | 2015-11-24 09:17:30 +0000 | [diff] [blame] | 909 | return GetFieldObject<ObjectArray<ObjectArray<Class>>>(field_offset); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 910 | } |
| 911 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 912 | inline void Class::InitializeClassVisitor::operator()(ObjPtr<Object> obj, |
Mathieu Chartier | 9d156d5 | 2016-10-06 17:44:26 -0700 | [diff] [blame] | 913 | size_t usable_size) const { |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 914 | DCHECK_LE(class_size_, usable_size); |
| 915 | // Avoid AsClass as object is not yet in live bitmap or allocation stack. |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 916 | ObjPtr<Class> klass = ObjPtr<Class>::DownCast(obj); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 917 | klass->SetClassSize(class_size_); |
| 918 | klass->SetPrimitiveType(Primitive::kPrimNot); // Default to not being primitive. |
| 919 | klass->SetDexClassDefIndex(DexFile::kDexNoIndex16); // Default to no valid class def index. |
Andreas Gampe | a5b09a6 | 2016-11-17 15:21:22 -0800 | [diff] [blame] | 920 | klass->SetDexTypeIndex(dex::TypeIndex(DexFile::kDexNoIndex16)); // Default to no valid type |
| 921 | // index. |
Mathieu Chartier | 93bbee0 | 2016-08-31 09:38:40 -0700 | [diff] [blame] | 922 | // Default to force slow path until initialized. |
Mathieu Chartier | 161db1d | 2016-09-01 14:06:54 -0700 | [diff] [blame] | 923 | klass->SetObjectSizeAllocFastPath(std::numeric_limits<uint32_t>::max()); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 924 | } |
| 925 | |
Andreas Gampe | 4849859 | 2014-09-10 19:48:05 -0700 | [diff] [blame] | 926 | inline void Class::SetAccessFlags(uint32_t new_access_flags) { |
| 927 | // Called inside a transaction when setting pre-verified flag during boot image compilation. |
| 928 | if (Runtime::Current()->IsActiveTransaction()) { |
Mathieu Chartier | 52a7f5c | 2015-08-18 18:35:52 -0700 | [diff] [blame] | 929 | SetField32<true>(AccessFlagsOffset(), new_access_flags); |
Andreas Gampe | 4849859 | 2014-09-10 19:48:05 -0700 | [diff] [blame] | 930 | } else { |
Mathieu Chartier | 52a7f5c | 2015-08-18 18:35:52 -0700 | [diff] [blame] | 931 | SetField32<false>(AccessFlagsOffset(), new_access_flags); |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | inline void Class::SetClassFlags(uint32_t new_flags) { |
| 936 | if (Runtime::Current()->IsActiveTransaction()) { |
| 937 | SetField32<true>(OFFSET_OF_OBJECT_MEMBER(Class, class_flags_), new_flags); |
| 938 | } else { |
| 939 | SetField32<false>(OFFSET_OF_OBJECT_MEMBER(Class, class_flags_), new_flags); |
Andreas Gampe | 4849859 | 2014-09-10 19:48:05 -0700 | [diff] [blame] | 940 | } |
| 941 | } |
| 942 | |
Mathieu Chartier | 2d2621a | 2014-10-23 16:48:06 -0700 | [diff] [blame] | 943 | inline uint32_t Class::NumDirectInterfaces() { |
| 944 | if (IsPrimitive()) { |
| 945 | return 0; |
| 946 | } else if (IsArrayClass()) { |
| 947 | return 2; |
Nicolas Geoffray | 3a09092 | 2015-11-24 09:17:30 +0000 | [diff] [blame] | 948 | } else if (IsProxyClass()) { |
Narayan Kamath | 6b2dc31 | 2017-03-14 13:26:12 +0000 | [diff] [blame] | 949 | ObjectArray<Class>* interfaces = GetProxyInterfaces(); |
Mathieu Chartier | 2d2621a | 2014-10-23 16:48:06 -0700 | [diff] [blame] | 950 | return interfaces != nullptr ? interfaces->GetLength() : 0; |
| 951 | } else { |
| 952 | const DexFile::TypeList* interfaces = GetInterfaceTypeList(); |
| 953 | if (interfaces == nullptr) { |
| 954 | return 0; |
| 955 | } else { |
| 956 | return interfaces->Size(); |
| 957 | } |
| 958 | } |
| 959 | } |
| 960 | |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 961 | inline ArraySlice<ArtMethod> Class::GetDirectMethods(PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 962 | CheckPointerSize(pointer_size); |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 963 | return GetDirectMethodsSliceUnchecked(pointer_size); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 964 | } |
| 965 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 966 | inline ArraySlice<ArtMethod> Class::GetDeclaredMethods(PointerSize pointer_size) { |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 967 | return GetDeclaredMethodsSliceUnchecked(pointer_size); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 968 | } |
| 969 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 970 | inline ArraySlice<ArtMethod> Class::GetDeclaredVirtualMethods(PointerSize pointer_size) { |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 971 | return GetDeclaredVirtualMethodsSliceUnchecked(pointer_size); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 972 | } |
| 973 | |
Roland Levillain | d32ead2 | 2018-05-30 17:38:21 +0100 | [diff] [blame] | 974 | inline ArraySlice<ArtMethod> Class::GetVirtualMethods(PointerSize pointer_size) { |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 975 | CheckPointerSize(pointer_size); |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 976 | return GetVirtualMethodsSliceUnchecked(pointer_size); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 977 | } |
| 978 | |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 979 | inline ArraySlice<ArtMethod> Class::GetCopiedMethods(PointerSize pointer_size) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 980 | CheckPointerSize(pointer_size); |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 981 | return GetCopiedMethodsSliceUnchecked(pointer_size); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 982 | } |
| 983 | |
| 984 | |
Vladimir Marko | 9ac7749 | 2017-06-14 18:07:03 +0100 | [diff] [blame] | 985 | inline ArraySlice<ArtMethod> Class::GetMethods(PointerSize pointer_size) { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 986 | CheckPointerSize(pointer_size); |
Mathieu Chartier | 2466d62 | 2017-09-26 13:52:26 -0700 | [diff] [blame] | 987 | LengthPrefixedArray<ArtMethod>* methods = GetMethodsPtr(); |
| 988 | return GetMethodsSliceRangeUnchecked(methods, pointer_size, 0u, NumMethods(methods)); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 989 | } |
| 990 | |
| 991 | inline IterationRange<StrideIterator<ArtField>> Class::GetIFields() { |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 992 | return MakeIterationRangeFromLengthPrefixedArray(GetIFieldsPtr()); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 993 | } |
| 994 | |
| 995 | inline IterationRange<StrideIterator<ArtField>> Class::GetSFields() { |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 996 | return MakeIterationRangeFromLengthPrefixedArray(GetSFieldsPtr()); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 997 | } |
| 998 | |
| 999 | inline IterationRange<StrideIterator<ArtField>> Class::GetIFieldsUnchecked() { |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 1000 | return MakeIterationRangeFromLengthPrefixedArray(GetIFieldsPtrUnchecked()); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 1001 | } |
| 1002 | |
| 1003 | inline IterationRange<StrideIterator<ArtField>> Class::GetSFieldsUnchecked() { |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 1004 | return MakeIterationRangeFromLengthPrefixedArray(GetSFieldsPtrUnchecked()); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1005 | } |
| 1006 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 1007 | inline MemberOffset Class::EmbeddedVTableOffset(PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1008 | CheckPointerSize(pointer_size); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 1009 | return MemberOffset(ImtPtrOffset(pointer_size).Uint32Value() + static_cast<size_t>(pointer_size)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1010 | } |
| 1011 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 1012 | inline void Class::CheckPointerSize(PointerSize pointer_size) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 1013 | DCHECK_EQ(pointer_size, Runtime::Current()->GetClassLinker()->GetImagePointerSize()); |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 1014 | } |
| 1015 | |
Calin Juravle | 2e76830 | 2015-07-28 14:41:11 +0000 | [diff] [blame] | 1016 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
| 1017 | inline Class* Class::GetComponentType() { |
| 1018 | return GetFieldObject<Class, kVerifyFlags, kReadBarrierOption>(ComponentTypeOffset()); |
| 1019 | } |
| 1020 | |
| 1021 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
| 1022 | inline bool Class::IsArrayClass() { |
| 1023 | return GetComponentType<kVerifyFlags, kReadBarrierOption>() != nullptr; |
| 1024 | } |
| 1025 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 1026 | template<VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption> |
| 1027 | inline bool Class::IsObjectArrayClass() { |
| 1028 | ObjPtr<Class> const component_type = GetComponentType<kVerifyFlags, kReadBarrierOption>(); |
| 1029 | return component_type != nullptr && !component_type->IsPrimitive(); |
| 1030 | } |
| 1031 | |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 1032 | inline bool Class::IsAssignableFrom(ObjPtr<Class> src) { |
Calin Juravle | 2e76830 | 2015-07-28 14:41:11 +0000 | [diff] [blame] | 1033 | DCHECK(src != nullptr); |
| 1034 | if (this == src) { |
| 1035 | // Can always assign to things of the same type. |
| 1036 | return true; |
| 1037 | } else if (IsObjectClass()) { |
| 1038 | // Can assign any reference to java.lang.Object. |
| 1039 | return !src->IsPrimitive(); |
| 1040 | } else if (IsInterface()) { |
| 1041 | return src->Implements(this); |
| 1042 | } else if (src->IsArrayClass()) { |
| 1043 | return IsAssignableFromArray(src); |
| 1044 | } else { |
| 1045 | return !src->IsInterface() && src->IsSubClass(this); |
| 1046 | } |
| 1047 | } |
| 1048 | |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 1049 | inline uint32_t Class::NumDirectMethods() { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 1050 | return GetVirtualMethodsStartOffset(); |
| 1051 | } |
| 1052 | |
| 1053 | inline uint32_t Class::NumDeclaredVirtualMethods() { |
| 1054 | return GetCopiedMethodsStartOffset() - GetVirtualMethodsStartOffset(); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 1055 | } |
| 1056 | |
| 1057 | inline uint32_t Class::NumVirtualMethods() { |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 1058 | return NumMethods() - GetVirtualMethodsStartOffset(); |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 1059 | } |
| 1060 | |
| 1061 | inline uint32_t Class::NumInstanceFields() { |
| 1062 | LengthPrefixedArray<ArtField>* arr = GetIFieldsPtrUnchecked(); |
Vladimir Marko | 35831e8 | 2015-09-11 11:59:18 +0100 | [diff] [blame] | 1063 | return arr != nullptr ? arr->size() : 0u; |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 1064 | } |
| 1065 | |
| 1066 | inline uint32_t Class::NumStaticFields() { |
| 1067 | LengthPrefixedArray<ArtField>* arr = GetSFieldsPtrUnchecked(); |
Vladimir Marko | 35831e8 | 2015-09-11 11:59:18 +0100 | [diff] [blame] | 1068 | return arr != nullptr ? arr->size() : 0u; |
Mathieu Chartier | 54d220e | 2015-07-30 16:20:06 -0700 | [diff] [blame] | 1069 | } |
| 1070 | |
Mathieu Chartier | dfe02f6 | 2016-02-01 20:15:11 -0800 | [diff] [blame] | 1071 | template <VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption, typename Visitor> |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 1072 | inline void Class::FixupNativePointers(Class* dest, |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 1073 | PointerSize pointer_size, |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1074 | const Visitor& visitor) { |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 1075 | auto dest_address_fn = [dest](MemberOffset offset) { |
| 1076 | return reinterpret_cast<void**>(reinterpret_cast<uintptr_t>(dest) + offset.Uint32Value()); |
| 1077 | }; |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1078 | // Update the field arrays. |
| 1079 | LengthPrefixedArray<ArtField>* const sfields = GetSFieldsPtr(); |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 1080 | void** sfields_dest_address = dest_address_fn(OFFSET_OF_OBJECT_MEMBER(Class, sfields_)); |
| 1081 | LengthPrefixedArray<ArtField>* const new_sfields = visitor(sfields, sfields_dest_address); |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1082 | if (sfields != new_sfields) { |
| 1083 | dest->SetSFieldsPtrUnchecked(new_sfields); |
| 1084 | } |
| 1085 | LengthPrefixedArray<ArtField>* const ifields = GetIFieldsPtr(); |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 1086 | void** ifields_dest_address = dest_address_fn(OFFSET_OF_OBJECT_MEMBER(Class, ifields_)); |
| 1087 | LengthPrefixedArray<ArtField>* const new_ifields = visitor(ifields, ifields_dest_address); |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1088 | if (ifields != new_ifields) { |
| 1089 | dest->SetIFieldsPtrUnchecked(new_ifields); |
| 1090 | } |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 1091 | // Update method array. |
| 1092 | LengthPrefixedArray<ArtMethod>* methods = GetMethodsPtr(); |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 1093 | void** methods_dest_address = dest_address_fn(OFFSET_OF_OBJECT_MEMBER(Class, methods_)); |
| 1094 | LengthPrefixedArray<ArtMethod>* new_methods = visitor(methods, methods_dest_address); |
Alex Light | e64300b | 2015-12-15 15:02:47 -0800 | [diff] [blame] | 1095 | if (methods != new_methods) { |
| 1096 | dest->SetMethodsPtrInternal(new_methods); |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1097 | } |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1098 | // Fix up embedded tables. |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 1099 | if (!IsTemp() && ShouldHaveEmbeddedVTable<kVerifyNone, kReadBarrierOption>()) { |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1100 | for (int32_t i = 0, count = GetEmbeddedVTableLength(); i < count; ++i) { |
| 1101 | ArtMethod* method = GetEmbeddedVTableEntry(i, pointer_size); |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 1102 | void** method_dest_addr = dest_address_fn(EmbeddedVTableEntryOffset(i, pointer_size)); |
| 1103 | ArtMethod* new_method = visitor(method, method_dest_addr); |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1104 | if (method != new_method) { |
| 1105 | dest->SetEmbeddedVTableEntryUnchecked(i, new_method, pointer_size); |
| 1106 | } |
| 1107 | } |
Artem Udovichenko | a62cb9b | 2016-06-30 09:18:25 +0000 | [diff] [blame] | 1108 | } |
| 1109 | if (!IsTemp() && ShouldHaveImt<kVerifyNone, kReadBarrierOption>()) { |
Vladimir Marko | ca8de0a | 2018-07-04 11:56:08 +0100 | [diff] [blame] | 1110 | ImTable* imt = GetImt(pointer_size); |
| 1111 | void** imt_dest_addr = dest_address_fn(ImtPtrOffset(pointer_size)); |
| 1112 | ImTable* new_imt = visitor(imt, imt_dest_addr); |
| 1113 | dest->SetImt(new_imt, pointer_size); |
Mathieu Chartier | 4b00d34 | 2015-11-13 10:42:08 -0800 | [diff] [blame] | 1114 | } |
| 1115 | } |
| 1116 | |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 1117 | inline bool Class::CanAccess(ObjPtr<Class> that) { |
| 1118 | return that->IsPublic() || this->IsInSamePackage(that); |
| 1119 | } |
| 1120 | |
| 1121 | |
| 1122 | inline bool Class::CanAccessMember(ObjPtr<Class> access_to, uint32_t member_flags) { |
| 1123 | // Classes can access all of their own members |
| 1124 | if (this == access_to) { |
| 1125 | return true; |
| 1126 | } |
| 1127 | // Public members are trivially accessible |
| 1128 | if (member_flags & kAccPublic) { |
| 1129 | return true; |
| 1130 | } |
| 1131 | // Private members are trivially not accessible |
| 1132 | if (member_flags & kAccPrivate) { |
| 1133 | return false; |
| 1134 | } |
| 1135 | // Check for protected access from a sub-class, which may or may not be in the same package. |
| 1136 | if (member_flags & kAccProtected) { |
| 1137 | if (!this->IsInterface() && this->IsSubClass(access_to)) { |
| 1138 | return true; |
| 1139 | } |
| 1140 | } |
| 1141 | // Allow protected access from other classes in the same package. |
| 1142 | return this->IsInSamePackage(access_to); |
| 1143 | } |
| 1144 | |
Mathieu Chartier | 28bd2e4 | 2016-10-04 13:54:57 -0700 | [diff] [blame] | 1145 | inline bool Class::CannotBeAssignedFromOtherTypes() { |
| 1146 | if (!IsArrayClass()) { |
| 1147 | return IsFinal(); |
| 1148 | } |
| 1149 | ObjPtr<Class> component = GetComponentType(); |
| 1150 | return component->IsPrimitive() || component->CannotBeAssignedFromOtherTypes(); |
| 1151 | } |
| 1152 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1153 | } // namespace mirror |
| 1154 | } // namespace art |
| 1155 | |
Brian Carlstrom | fc0e321 | 2013-07-17 14:40:12 -0700 | [diff] [blame] | 1156 | #endif // ART_RUNTIME_MIRROR_CLASS_INL_H_ |