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 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 17 | #ifndef ART_RUNTIME_ART_METHOD_H_ |
| 18 | #define ART_RUNTIME_ART_METHOD_H_ |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 19 | |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 20 | #include <cstddef> |
| 21 | |
Andreas Gampe | 5794381 | 2017-12-06 21:39:13 -0800 | [diff] [blame] | 22 | #include <android-base/logging.h> |
| 23 | |
Nicolas Geoffray | 6bc4374 | 2015-10-12 18:11:10 +0100 | [diff] [blame] | 24 | #include "base/bit_utils.h" |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 25 | #include "base/casts.h" |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 26 | #include "base/enums.h" |
Mathieu Chartier | 69147f1 | 2017-11-06 20:02:24 -0800 | [diff] [blame] | 27 | #include "base/iteration_range.h" |
Andreas Gampe | 5794381 | 2017-12-06 21:39:13 -0800 | [diff] [blame] | 28 | #include "base/macros.h" |
Andreas Gampe | dcc528d | 2017-12-07 13:37:10 -0800 | [diff] [blame] | 29 | #include "base/runtime_debug.h" |
David Sehr | 9e734c7 | 2018-01-04 17:56:19 -0800 | [diff] [blame] | 30 | #include "dex/code_item_accessors.h" |
| 31 | #include "dex/dex_file.h" |
| 32 | #include "dex/dex_instruction_iterator.h" |
Hiroshi Yamauchi | 94f7b49 | 2014-07-22 18:08:23 -0700 | [diff] [blame] | 33 | #include "gc_root.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 34 | #include "modifiers.h" |
Mathieu Chartier | 28357fa | 2016-10-18 16:27:40 -0700 | [diff] [blame] | 35 | #include "obj_ptr.h" |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 36 | #include "offsets.h" |
Alex Light | d766158 | 2017-05-01 13:48:16 -0700 | [diff] [blame] | 37 | #include "primitive.h" |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 38 | #include "read_barrier_option.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 39 | |
| 40 | namespace art { |
| 41 | |
David Sehr | 9323e6e | 2016-09-13 08:58:35 -0700 | [diff] [blame] | 42 | template<class T> class Handle; |
Andreas Gampe | 75a7db6 | 2016-09-26 12:04:26 -0700 | [diff] [blame] | 43 | class ImtConflictTable; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 44 | enum InvokeType : uint32_t; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 45 | union JValue; |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 46 | class OatQuickMethodHeader; |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 47 | class ProfilingInfo; |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 48 | class ScopedObjectAccessAlreadyRunnable; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 49 | class StringPiece; |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 50 | class ShadowFrame; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 51 | |
| 52 | namespace mirror { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 53 | class Array; |
| 54 | class Class; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 55 | class ClassLoader; |
| 56 | class DexCache; |
Mathieu Chartier | e42888f | 2016-04-14 10:49:19 -0700 | [diff] [blame] | 57 | class IfTable; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 58 | class Object; |
| 59 | template <typename MirrorType> class ObjectArray; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 60 | class PointerArray; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 61 | class String; |
Vladimir Marko | 07bfbac | 2017-07-06 14:55:02 +0100 | [diff] [blame] | 62 | |
| 63 | template <typename T> struct NativeDexCachePair; |
| 64 | using MethodDexCachePair = NativeDexCachePair<ArtMethod>; |
| 65 | using MethodDexCacheType = std::atomic<MethodDexCachePair>; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 66 | } // namespace mirror |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 67 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 68 | class ArtMethod FINAL { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 69 | public: |
Andreas Gampe | aea05c1 | 2017-05-19 08:45:02 -0700 | [diff] [blame] | 70 | // Should the class state be checked on sensitive operations? |
| 71 | DECLARE_RUNTIME_DEBUG_FLAG(kCheckDeclaringClassState); |
Andreas Gampe | b1106e2 | 2017-02-23 11:34:48 -0800 | [diff] [blame] | 72 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 73 | // The runtime dex_method_index is kDexNoIndex. To lower dependencies, we use this |
| 74 | // constexpr, and ensure that the value is correct in art_method.cc. |
| 75 | static constexpr uint32_t kRuntimeMethodDexMethodIndex = 0xFFFFFFFF; |
| 76 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 77 | ArtMethod() : access_flags_(0), dex_code_item_offset_(0), dex_method_index_(0), |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 78 | method_index_(0), hotness_count_(0) { } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 79 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 80 | ArtMethod(ArtMethod* src, PointerSize image_pointer_size) { |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 81 | CopyFrom(src, image_pointer_size); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 82 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 83 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 84 | static ArtMethod* FromReflectedMethod(const ScopedObjectAccessAlreadyRunnable& soa, |
| 85 | jobject jlr_method) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 86 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 87 | |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 88 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 89 | ALWAYS_INLINE mirror::Class* GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 90 | |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 91 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 92 | ALWAYS_INLINE mirror::Class* GetDeclaringClassUnchecked() |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 93 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 94 | |
Mathieu Chartier | 8c19d24 | 2017-03-06 12:35:10 -0800 | [diff] [blame] | 95 | mirror::CompressedReference<mirror::Object>* GetDeclaringClassAddressWithoutBarrier() { |
| 96 | return declaring_class_.AddressWithoutBarrier(); |
| 97 | } |
| 98 | |
Mathieu Chartier | 28357fa | 2016-10-18 16:27:40 -0700 | [diff] [blame] | 99 | void SetDeclaringClass(ObjPtr<mirror::Class> new_declaring_class) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 100 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 101 | |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 102 | bool CASDeclaringClass(mirror::Class* expected_class, mirror::Class* desired_class) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 103 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 104 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 105 | static MemberOffset DeclaringClassOffset() { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 106 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, declaring_class_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 107 | } |
| 108 | |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 109 | // Note: GetAccessFlags acquires the mutator lock in debug mode to check that it is not called for |
| 110 | // a proxy method. |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 111 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 112 | uint32_t GetAccessFlags() { |
| 113 | if (kCheckDeclaringClassState) { |
| 114 | GetAccessFlagsDCheck<kReadBarrierOption>(); |
| 115 | } |
| 116 | return access_flags_.load(std::memory_order_relaxed); |
| 117 | } |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 118 | |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 119 | // This version should only be called when it's certain there is no |
| 120 | // concurrency so there is no need to guarantee atomicity. For example, |
| 121 | // before the method is linked. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 122 | void SetAccessFlags(uint32_t new_access_flags) { |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 123 | access_flags_.store(new_access_flags, std::memory_order_relaxed); |
| 124 | } |
| 125 | |
Vladimir Marko | 5122e6b | 2017-08-17 16:10:09 +0100 | [diff] [blame] | 126 | static MemberOffset AccessFlagsOffset() { |
| 127 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, access_flags_)); |
| 128 | } |
| 129 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 130 | // Approximate what kind of method call would be used for this method. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 131 | InvokeType GetInvokeType() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 132 | |
| 133 | // Returns true if the method is declared public. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 134 | bool IsPublic() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 135 | return (GetAccessFlags() & kAccPublic) != 0; |
| 136 | } |
| 137 | |
| 138 | // Returns true if the method is declared private. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 139 | bool IsPrivate() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 140 | return (GetAccessFlags() & kAccPrivate) != 0; |
| 141 | } |
| 142 | |
| 143 | // Returns true if the method is declared static. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 144 | bool IsStatic() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 145 | return (GetAccessFlags() & kAccStatic) != 0; |
| 146 | } |
| 147 | |
Orion Hodson | 6c4921b | 2016-09-21 15:41:06 +0100 | [diff] [blame] | 148 | // Returns true if the method is a constructor according to access flags. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 149 | bool IsConstructor() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 150 | return (GetAccessFlags() & kAccConstructor) != 0; |
| 151 | } |
| 152 | |
Orion Hodson | 6c4921b | 2016-09-21 15:41:06 +0100 | [diff] [blame] | 153 | // Returns true if the method is a class initializer according to access flags. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 154 | bool IsClassInitializer() { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 155 | return IsConstructor() && IsStatic(); |
| 156 | } |
| 157 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 158 | // Returns true if the method is static, private, or a constructor. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 159 | bool IsDirect() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 160 | return IsDirect(GetAccessFlags()); |
| 161 | } |
| 162 | |
| 163 | static bool IsDirect(uint32_t access_flags) { |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 164 | constexpr uint32_t direct = kAccStatic | kAccPrivate | kAccConstructor; |
| 165 | return (access_flags & direct) != 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | // Returns true if the method is declared synchronized. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 169 | bool IsSynchronized() { |
| 170 | constexpr uint32_t synchonized = kAccSynchronized | kAccDeclaredSynchronized; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 171 | return (GetAccessFlags() & synchonized) != 0; |
| 172 | } |
| 173 | |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 174 | bool IsFinal() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 175 | return (GetAccessFlags() & kAccFinal) != 0; |
| 176 | } |
| 177 | |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 178 | bool IsIntrinsic() { |
| 179 | return (GetAccessFlags() & kAccIntrinsic) != 0; |
| 180 | } |
| 181 | |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 182 | ALWAYS_INLINE void SetIntrinsic(uint32_t intrinsic) REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 183 | |
| 184 | uint32_t GetIntrinsic() { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 185 | static const int kAccFlagsShift = CTZ(kAccIntrinsicBits); |
| 186 | static_assert(IsPowerOfTwo((kAccIntrinsicBits >> kAccFlagsShift) + 1), |
| 187 | "kAccIntrinsicBits are not continuous"); |
| 188 | static_assert((kAccIntrinsic & kAccIntrinsicBits) == 0, |
| 189 | "kAccIntrinsic overlaps kAccIntrinsicBits"); |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 190 | DCHECK(IsIntrinsic()); |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 191 | return (GetAccessFlags() & kAccIntrinsicBits) >> kAccFlagsShift; |
| 192 | } |
| 193 | |
| 194 | void SetNotIntrinsic() REQUIRES_SHARED(Locks::mutator_lock_) { |
| 195 | ClearAccessFlags(kAccIntrinsic | kAccIntrinsicBits); |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 196 | } |
| 197 | |
Alex Light | 3612149 | 2016-02-22 13:43:29 -0800 | [diff] [blame] | 198 | bool IsCopied() { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 199 | static_assert((kAccCopied & (kAccIntrinsic | kAccIntrinsicBits)) == 0, |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 200 | "kAccCopied conflicts with intrinsic modifier"); |
Alex Light | 3612149 | 2016-02-22 13:43:29 -0800 | [diff] [blame] | 201 | const bool copied = (GetAccessFlags() & kAccCopied) != 0; |
| 202 | // (IsMiranda() || IsDefaultConflicting()) implies copied |
| 203 | DCHECK(!(IsMiranda() || IsDefaultConflicting()) || copied) |
| 204 | << "Miranda or default-conflict methods must always be copied."; |
| 205 | return copied; |
Alex Light | fcea56f | 2016-02-17 11:59:05 -0800 | [diff] [blame] | 206 | } |
| 207 | |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 208 | bool IsMiranda() { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 209 | // The kAccMiranda flag value is used with a different meaning for native methods, |
| 210 | // so we need to check the kAccNative flag as well. |
| 211 | return (GetAccessFlags() & (kAccNative | kAccMiranda)) == kAccMiranda; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 212 | } |
| 213 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 214 | // Returns true if invoking this method will not throw an AbstractMethodError or |
| 215 | // IncompatibleClassChangeError. |
| 216 | bool IsInvokable() { |
| 217 | return !IsAbstract() && !IsDefaultConflicting(); |
| 218 | } |
| 219 | |
Nicolas Geoffray | 250a378 | 2016-04-20 16:27:53 +0100 | [diff] [blame] | 220 | bool IsCompilable() { |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 221 | if (IsIntrinsic()) { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 222 | // kAccCompileDontBother overlaps with kAccIntrinsicBits. |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 223 | return true; |
| 224 | } |
Nicolas Geoffray | 250a378 | 2016-04-20 16:27:53 +0100 | [diff] [blame] | 225 | return (GetAccessFlags() & kAccCompileDontBother) == 0; |
| 226 | } |
| 227 | |
Alex Light | fcbafb3 | 2017-02-02 15:09:54 -0800 | [diff] [blame] | 228 | void SetDontCompile() { |
| 229 | AddAccessFlags(kAccCompileDontBother); |
| 230 | } |
| 231 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 232 | // A default conflict method is a special sentinel method that stands for a conflict between |
| 233 | // multiple default methods. It cannot be invoked, throwing an IncompatibleClassChangeError if one |
| 234 | // attempts to do so. |
| 235 | bool IsDefaultConflicting() { |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 236 | if (IsIntrinsic()) { |
| 237 | return false; |
| 238 | } |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 239 | return (GetAccessFlags() & kAccDefaultConflict) != 0u; |
| 240 | } |
| 241 | |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 242 | // This is set by the class linker. |
| 243 | bool IsDefault() { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 244 | static_assert((kAccDefault & (kAccIntrinsic | kAccIntrinsicBits)) == 0, |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 245 | "kAccDefault conflicts with intrinsic modifier"); |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 246 | return (GetAccessFlags() & kAccDefault) != 0; |
| 247 | } |
| 248 | |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 249 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Alex Light | a01de59 | 2016-11-15 10:43:06 -0800 | [diff] [blame] | 250 | bool IsObsolete() { |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 251 | return (GetAccessFlags<kReadBarrierOption>() & kAccObsoleteMethod) != 0; |
Alex Light | a01de59 | 2016-11-15 10:43:06 -0800 | [diff] [blame] | 252 | } |
| 253 | |
Alex Light | dba6148 | 2016-12-21 08:20:29 -0800 | [diff] [blame] | 254 | void SetIsObsolete() { |
Alex Light | fcbafb3 | 2017-02-02 15:09:54 -0800 | [diff] [blame] | 255 | AddAccessFlags(kAccObsoleteMethod); |
Alex Light | dba6148 | 2016-12-21 08:20:29 -0800 | [diff] [blame] | 256 | } |
| 257 | |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 258 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 259 | bool IsNative() { |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 260 | return (GetAccessFlags<kReadBarrierOption>() & kAccNative) != 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 261 | } |
| 262 | |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 263 | // Checks to see if the method was annotated with @dalvik.annotation.optimization.FastNative. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 264 | bool IsFastNative() { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 265 | // The presence of the annotation is checked by ClassLinker and recorded in access flags. |
| 266 | // The kAccFastNative flag value is used with a different meaning for non-native methods, |
| 267 | // so we need to check the kAccNative flag as well. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 268 | constexpr uint32_t mask = kAccFastNative | kAccNative; |
Ian Rogers | 16ce092 | 2014-01-10 14:59:36 -0800 | [diff] [blame] | 269 | return (GetAccessFlags() & mask) == mask; |
Ian Rogers | 1eb512d | 2013-10-18 15:42:20 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 272 | // Checks to see if the method was annotated with @dalvik.annotation.optimization.CriticalNative. |
| 273 | bool IsCriticalNative() { |
| 274 | // The presence of the annotation is checked by ClassLinker and recorded in access flags. |
| 275 | // The kAccCriticalNative flag value is used with a different meaning for non-native methods, |
| 276 | // so we need to check the kAccNative flag as well. |
| 277 | constexpr uint32_t mask = kAccCriticalNative | kAccNative; |
| 278 | return (GetAccessFlags() & mask) == mask; |
| 279 | } |
| 280 | |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 281 | bool IsAbstract() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 282 | return (GetAccessFlags() & kAccAbstract) != 0; |
| 283 | } |
| 284 | |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 285 | bool IsSynthetic() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 286 | return (GetAccessFlags() & kAccSynthetic) != 0; |
| 287 | } |
| 288 | |
Orion Hodson | cfa325e | 2016-10-13 10:25:54 +0100 | [diff] [blame] | 289 | bool IsVarargs() { |
| 290 | return (GetAccessFlags() & kAccVarargs) != 0; |
| 291 | } |
| 292 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 293 | bool IsProxyMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 294 | |
Orion Hodson | eb4d19b | 2017-11-06 15:49:23 +0000 | [diff] [blame] | 295 | bool IsPolymorphicSignature() REQUIRES_SHARED(Locks::mutator_lock_); |
Orion Hodson | 43f0cdb | 2017-10-10 14:47:32 +0100 | [diff] [blame] | 296 | |
Igor Murashkin | df707e4 | 2016-02-02 16:56:50 -0800 | [diff] [blame] | 297 | bool SkipAccessChecks() { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 298 | // The kAccSkipAccessChecks flag value is used with a different meaning for native methods, |
| 299 | // so we need to check the kAccNative flag as well. |
| 300 | return (GetAccessFlags() & (kAccSkipAccessChecks | kAccNative)) == kAccSkipAccessChecks; |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 301 | } |
| 302 | |
Igor Murashkin | df707e4 | 2016-02-02 16:56:50 -0800 | [diff] [blame] | 303 | void SetSkipAccessChecks() { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 304 | // SkipAccessChecks() is applicable only to non-native methods. |
| 305 | DCHECK(!IsNative<kWithoutReadBarrier>()); |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 306 | AddAccessFlags(kAccSkipAccessChecks); |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 307 | } |
| 308 | |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 309 | bool PreviouslyWarm() { |
| 310 | if (IsIntrinsic()) { |
| 311 | // kAccPreviouslyWarm overlaps with kAccIntrinsicBits. |
| 312 | return true; |
| 313 | } |
| 314 | return (GetAccessFlags() & kAccPreviouslyWarm) != 0; |
| 315 | } |
| 316 | |
| 317 | void SetPreviouslyWarm() { |
| 318 | if (IsIntrinsic()) { |
| 319 | // kAccPreviouslyWarm overlaps with kAccIntrinsicBits. |
| 320 | return; |
| 321 | } |
| 322 | AddAccessFlags(kAccPreviouslyWarm); |
| 323 | } |
| 324 | |
Andreas Gampe | 56fdd0e | 2016-04-28 14:56:54 -0700 | [diff] [blame] | 325 | // Should this method be run in the interpreter and count locks (e.g., failed structured- |
| 326 | // locking verification)? |
| 327 | bool MustCountLocks() { |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 328 | if (IsIntrinsic()) { |
| 329 | return false; |
| 330 | } |
Andreas Gampe | 56fdd0e | 2016-04-28 14:56:54 -0700 | [diff] [blame] | 331 | return (GetAccessFlags() & kAccMustCountLocks) != 0; |
| 332 | } |
| 333 | |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 334 | void SetMustCountLocks() { |
| 335 | AddAccessFlags(kAccMustCountLocks); |
| 336 | } |
| 337 | |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 338 | // Returns true if this method could be overridden by a default method. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 339 | bool IsOverridableByDefaultMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 340 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 341 | bool CheckIncompatibleClassChange(InvokeType type) REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 342 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 343 | // Throws the error that would result from trying to invoke this method (i.e. |
| 344 | // IncompatibleClassChangeError or AbstractMethodError). Only call if !IsInvokable(); |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 345 | void ThrowInvocationTimeError() REQUIRES_SHARED(Locks::mutator_lock_); |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 346 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 347 | uint16_t GetMethodIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 348 | |
Mathieu Chartier | 9f3629d | 2014-10-28 18:23:02 -0700 | [diff] [blame] | 349 | // Doesn't do erroneous / unresolved class checks. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 350 | uint16_t GetMethodIndexDuringLinking() REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | 9f3629d | 2014-10-28 18:23:02 -0700 | [diff] [blame] | 351 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 352 | size_t GetVtableIndex() REQUIRES_SHARED(Locks::mutator_lock_) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 353 | return GetMethodIndex(); |
| 354 | } |
| 355 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 356 | void SetMethodIndex(uint16_t new_method_index) REQUIRES_SHARED(Locks::mutator_lock_) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 357 | // Not called within a transaction. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 358 | method_index_ = new_method_index; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 359 | } |
| 360 | |
Vladimir Marko | c136312 | 2015-04-09 14:13:13 +0100 | [diff] [blame] | 361 | static MemberOffset DexMethodIndexOffset() { |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 362 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, dex_method_index_)); |
Vladimir Marko | c136312 | 2015-04-09 14:13:13 +0100 | [diff] [blame] | 363 | } |
| 364 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 365 | static MemberOffset MethodIndexOffset() { |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 366 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, method_index_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 367 | } |
| 368 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 369 | uint32_t GetCodeItemOffset() { |
| 370 | return dex_code_item_offset_; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 371 | } |
| 372 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 373 | void SetCodeItemOffset(uint32_t new_code_off) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 374 | // Not called within a transaction. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 375 | dex_code_item_offset_ = new_code_off; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 376 | } |
| 377 | |
| 378 | // Number of 32bit registers that would be required to hold all the arguments |
| 379 | static size_t NumArgRegisters(const StringPiece& shorty); |
| 380 | |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 381 | ALWAYS_INLINE uint32_t GetDexMethodIndexUnchecked() { |
| 382 | return dex_method_index_; |
| 383 | } |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 384 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 385 | ALWAYS_INLINE uint32_t GetDexMethodIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 386 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 387 | void SetDexMethodIndex(uint32_t new_idx) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 388 | // Not called within a transaction. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 389 | dex_method_index_ = new_idx; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 390 | } |
| 391 | |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 392 | // Lookup the Class* from the type index into this method's dex cache. |
| 393 | ObjPtr<mirror::Class> LookupResolvedClassFromTypeIndex(dex::TypeIndex type_idx) |
| 394 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 395 | // Resolve the Class* from the type index into this method's dex cache. |
| 396 | ObjPtr<mirror::Class> ResolveClassFromTypeIndex(dex::TypeIndex type_idx) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 397 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | a048560 | 2014-12-02 15:48:04 -0800 | [diff] [blame] | 398 | |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 399 | // Returns true if this method has the same name and signature of the other method. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 400 | bool HasSameNameAndSignature(ArtMethod* other) REQUIRES_SHARED(Locks::mutator_lock_); |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 401 | |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 402 | // Find the method that this method overrides. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 403 | ArtMethod* FindOverriddenMethod(PointerSize pointer_size) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 404 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 405 | |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 406 | // Find the method index for this method within other_dexfile. If this method isn't present then |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 407 | // return dex::kDexNoIndex. The name_and_signature_idx MUST refer to a MethodId with the same |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 408 | // name and signature in the other_dexfile, such as the method index used to resolve this method |
| 409 | // in the other_dexfile. |
| 410 | uint32_t FindDexMethodIndexInOtherDexFile(const DexFile& other_dexfile, |
| 411 | uint32_t name_and_signature_idx) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 412 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 413 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 414 | void Invoke(Thread* self, uint32_t* args, uint32_t args_size, JValue* result, const char* shorty) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 415 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 416 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 417 | const void* GetEntryPointFromQuickCompiledCode() { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 418 | return GetEntryPointFromQuickCompiledCodePtrSize(kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 419 | } |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 420 | ALWAYS_INLINE const void* GetEntryPointFromQuickCompiledCodePtrSize(PointerSize pointer_size) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 421 | return GetNativePointer<const void*>( |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 422 | EntryPointFromQuickCompiledCodeOffset(pointer_size), pointer_size); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 423 | } |
| 424 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 425 | void SetEntryPointFromQuickCompiledCode(const void* entry_point_from_quick_compiled_code) { |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 426 | SetEntryPointFromQuickCompiledCodePtrSize(entry_point_from_quick_compiled_code, |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 427 | kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 428 | } |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 429 | ALWAYS_INLINE void SetEntryPointFromQuickCompiledCodePtrSize( |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 430 | const void* entry_point_from_quick_compiled_code, PointerSize pointer_size) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 431 | SetNativePointer(EntryPointFromQuickCompiledCodeOffset(pointer_size), |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 432 | entry_point_from_quick_compiled_code, |
| 433 | pointer_size); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 434 | } |
| 435 | |
Alex Light | d78ddec | 2017-04-18 15:20:38 -0700 | [diff] [blame] | 436 | // Registers the native method and returns the new entry point. NB The returned entry point might |
| 437 | // be different from the native_method argument if some MethodCallback modifies it. |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 438 | const void* RegisterNative(const void* native_method) |
Alex Light | d78ddec | 2017-04-18 15:20:38 -0700 | [diff] [blame] | 439 | REQUIRES_SHARED(Locks::mutator_lock_) WARN_UNUSED; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 440 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 441 | void UnregisterNative() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 442 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 443 | static MemberOffset DataOffset(PointerSize pointer_size) { |
Mathieu Chartier | eace458 | 2014-11-24 18:29:54 -0800 | [diff] [blame] | 444 | return MemberOffset(PtrSizedFieldsOffset(pointer_size) + OFFSETOF_MEMBER( |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 445 | PtrSizedFields, data_) / sizeof(void*) * static_cast<size_t>(pointer_size)); |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 446 | } |
| 447 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 448 | static MemberOffset EntryPointFromJniOffset(PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 449 | return DataOffset(pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 450 | } |
| 451 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 452 | static MemberOffset EntryPointFromQuickCompiledCodeOffset(PointerSize pointer_size) { |
Mathieu Chartier | eace458 | 2014-11-24 18:29:54 -0800 | [diff] [blame] | 453 | return MemberOffset(PtrSizedFieldsOffset(pointer_size) + OFFSETOF_MEMBER( |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 454 | PtrSizedFields, entry_point_from_quick_compiled_code_) / sizeof(void*) |
| 455 | * static_cast<size_t>(pointer_size)); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 456 | } |
| 457 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 458 | ImtConflictTable* GetImtConflictTable(PointerSize pointer_size) { |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 459 | DCHECK(IsRuntimeMethod()); |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 460 | return reinterpret_cast<ImtConflictTable*>(GetDataPtrSize(pointer_size)); |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 461 | } |
| 462 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 463 | ALWAYS_INLINE void SetImtConflictTable(ImtConflictTable* table, PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 464 | DCHECK(IsRuntimeMethod()); |
| 465 | SetDataPtrSize(table, pointer_size); |
| 466 | } |
| 467 | |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 468 | ProfilingInfo* GetProfilingInfo(PointerSize pointer_size) REQUIRES_SHARED(Locks::mutator_lock_) { |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 469 | // Don't do a read barrier in the DCHECK() inside GetAccessFlags() called by IsNative(), |
| 470 | // as GetProfilingInfo is called in places where the declaring class is treated as a weak |
| 471 | // reference (accessing it with a read barrier would either prevent unloading the class, |
| 472 | // or crash the runtime if the GC wants to unload it). |
| 473 | if (UNLIKELY(IsNative<kWithoutReadBarrier>()) || UNLIKELY(IsProxyMethod())) { |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 474 | return nullptr; |
| 475 | } |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 476 | return reinterpret_cast<ProfilingInfo*>(GetDataPtrSize(pointer_size)); |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 477 | } |
| 478 | |
Nicolas Geoffray | 26705e2 | 2015-10-28 12:50:11 +0000 | [diff] [blame] | 479 | ALWAYS_INLINE void SetProfilingInfo(ProfilingInfo* info) { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 480 | SetDataPtrSize(info, kRuntimePointerSize); |
Nicolas Geoffray | 26705e2 | 2015-10-28 12:50:11 +0000 | [diff] [blame] | 481 | } |
| 482 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 483 | ALWAYS_INLINE void SetProfilingInfoPtrSize(ProfilingInfo* info, PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 484 | SetDataPtrSize(info, pointer_size); |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 485 | } |
| 486 | |
Nicolas Geoffray | 26705e2 | 2015-10-28 12:50:11 +0000 | [diff] [blame] | 487 | static MemberOffset ProfilingInfoOffset() { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 488 | DCHECK(IsImagePointerSize(kRuntimePointerSize)); |
| 489 | return DataOffset(kRuntimePointerSize); |
Nicolas Geoffray | 26705e2 | 2015-10-28 12:50:11 +0000 | [diff] [blame] | 490 | } |
| 491 | |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 492 | ALWAYS_INLINE bool HasSingleImplementation() REQUIRES_SHARED(Locks::mutator_lock_); |
| 493 | |
| 494 | ALWAYS_INLINE void SetHasSingleImplementation(bool single_impl) { |
| 495 | DCHECK(!IsIntrinsic()) << "conflict with intrinsic bits"; |
| 496 | if (single_impl) { |
| 497 | AddAccessFlags(kAccSingleImplementation); |
| 498 | } else { |
| 499 | ClearAccessFlags(kAccSingleImplementation); |
| 500 | } |
| 501 | } |
| 502 | |
Alex Light | 97e7803 | 2017-06-27 17:51:55 -0700 | [diff] [blame] | 503 | // Takes a method and returns a 'canonical' one if the method is default (and therefore |
| 504 | // potentially copied from some other class). For example, this ensures that the debugger does not |
| 505 | // get confused as to which method we are in. |
| 506 | ArtMethod* GetCanonicalMethod(PointerSize pointer_size = kRuntimePointerSize) |
| 507 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 508 | |
Mingyao Yang | e8fcd01 | 2017-01-20 10:43:30 -0800 | [diff] [blame] | 509 | ArtMethod* GetSingleImplementation(PointerSize pointer_size) |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 510 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 511 | |
| 512 | ALWAYS_INLINE void SetSingleImplementation(ArtMethod* method, PointerSize pointer_size) { |
| 513 | DCHECK(!IsNative()); |
| 514 | DCHECK(IsAbstract()); // Non-abstract method's single implementation is just itself. |
| 515 | SetDataPtrSize(method, pointer_size); |
| 516 | } |
| 517 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 518 | void* GetEntryPointFromJni() { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 519 | DCHECK(IsNative()); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 520 | return GetEntryPointFromJniPtrSize(kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 521 | } |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 522 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 523 | ALWAYS_INLINE void* GetEntryPointFromJniPtrSize(PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 524 | return GetDataPtrSize(pointer_size); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 525 | } |
| 526 | |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 527 | void SetEntryPointFromJni(const void* entrypoint) { |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 528 | DCHECK(IsNative()); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 529 | SetEntryPointFromJniPtrSize(entrypoint, kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 530 | } |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 531 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 532 | ALWAYS_INLINE void SetEntryPointFromJniPtrSize(const void* entrypoint, PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 533 | SetDataPtrSize(entrypoint, pointer_size); |
| 534 | } |
| 535 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 536 | ALWAYS_INLINE void* GetDataPtrSize(PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 537 | DCHECK(IsImagePointerSize(pointer_size)); |
| 538 | return GetNativePointer<void*>(DataOffset(pointer_size), pointer_size); |
| 539 | } |
| 540 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 541 | ALWAYS_INLINE void SetDataPtrSize(const void* data, PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 542 | DCHECK(IsImagePointerSize(pointer_size)); |
| 543 | SetNativePointer(DataOffset(pointer_size), data, pointer_size); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 544 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 545 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 546 | // Is this a CalleSaveMethod or ResolutionMethod and therefore doesn't adhere to normal |
| 547 | // conventions for a method of managed code. Returns false for Proxy methods. |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 548 | ALWAYS_INLINE bool IsRuntimeMethod() { |
| 549 | return dex_method_index_ == kRuntimeMethodDexMethodIndex;; |
| 550 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 551 | |
| 552 | // Is this a hand crafted method used for something like describing callee saves? |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 553 | bool IsCalleeSaveMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 554 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 555 | bool IsResolutionMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 556 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 557 | bool IsImtUnimplementedMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | 2d2621a | 2014-10-23 16:48:06 -0700 | [diff] [blame] | 558 | |
Ian Rogers | c449aa8 | 2013-07-29 14:35:46 -0700 | [diff] [blame] | 559 | // Find the catch block for the given exception type and dex_pc. When a catch block is found, |
| 560 | // indicates whether the found catch block is responsible for clearing the exception or whether |
| 561 | // a move-exception instruction is present. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 562 | uint32_t FindCatchBlock(Handle<mirror::Class> exception_type, uint32_t dex_pc, |
| 563 | bool* has_no_move_exception) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 564 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 565 | |
Mathieu Chartier | da7c650 | 2015-07-23 16:01:26 -0700 | [diff] [blame] | 566 | // NO_THREAD_SAFETY_ANALYSIS since we don't know what the callback requires. |
Hiroshi Yamauchi | 7a62e67 | 2016-06-10 17:22:48 -0700 | [diff] [blame] | 567 | template<ReadBarrierOption kReadBarrierOption = kWithReadBarrier, typename RootVisitorType> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 568 | void VisitRoots(RootVisitorType& visitor, PointerSize pointer_size) NO_THREAD_SAFETY_ANALYSIS; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 569 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 570 | const DexFile* GetDexFile() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 571 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 572 | const char* GetDeclaringClassDescriptor() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 573 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 574 | ALWAYS_INLINE const char* GetShorty() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 575 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 576 | const char* GetShorty(uint32_t* out_length) REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 577 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 578 | const Signature GetSignature() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 579 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 580 | ALWAYS_INLINE const char* GetName() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 581 | |
Vladimir Marko | 28e012a | 2017-12-07 11:22:59 +0000 | [diff] [blame] | 582 | ObjPtr<mirror::String> GetNameAsString(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 6b14d55 | 2014-10-28 21:50:58 -0700 | [diff] [blame] | 583 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 584 | const DexFile::CodeItem* GetCodeItem() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 585 | |
Vladimir Marko | 942fd31 | 2017-01-16 20:52:19 +0000 | [diff] [blame] | 586 | bool IsResolvedTypeIdx(dex::TypeIndex type_idx) REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 587 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 588 | int32_t GetLineNumFromDexPC(uint32_t dex_pc) REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 589 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 590 | const DexFile::ProtoId& GetPrototype() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 591 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 592 | const DexFile::TypeList* GetParameterTypeList() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 593 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 594 | const char* GetDeclaringClassSourceFile() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 595 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 596 | uint16_t GetClassDefIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 597 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 598 | const DexFile::ClassDef& GetClassDef() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 599 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 600 | const char* GetReturnTypeDescriptor() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 601 | |
Alex Light | d766158 | 2017-05-01 13:48:16 -0700 | [diff] [blame] | 602 | ALWAYS_INLINE Primitive::Type GetReturnTypePrimitive() REQUIRES_SHARED(Locks::mutator_lock_); |
| 603 | |
Andreas Gampe | a5b09a6 | 2016-11-17 15:21:22 -0800 | [diff] [blame] | 604 | const char* GetTypeDescriptorFromTypeIdx(dex::TypeIndex type_idx) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 605 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 606 | |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 607 | // Lookup return type. |
| 608 | ObjPtr<mirror::Class> LookupResolvedReturnType() REQUIRES_SHARED(Locks::mutator_lock_); |
| 609 | // Resolve return type. May cause thread suspension due to GetClassFromTypeIdx |
| 610 | // calling ResolveType this caused a large number of bugs at call sites. |
| 611 | ObjPtr<mirror::Class> ResolveReturnType() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | ded66a0 | 2014-10-28 18:12:55 -0700 | [diff] [blame] | 612 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 613 | mirror::ClassLoader* GetClassLoader() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 614 | |
Mathieu Chartier | 137cdfa | 2017-01-26 14:03:11 -0800 | [diff] [blame] | 615 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 616 | mirror::DexCache* GetDexCache() REQUIRES_SHARED(Locks::mutator_lock_); |
Alex Light | a01de59 | 2016-11-15 10:43:06 -0800 | [diff] [blame] | 617 | mirror::DexCache* GetObsoleteDexCache() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 618 | |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 619 | ALWAYS_INLINE ArtMethod* GetInterfaceMethodForProxyUnchecked(PointerSize pointer_size) |
| 620 | REQUIRES_SHARED(Locks::mutator_lock_); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 621 | ALWAYS_INLINE ArtMethod* GetInterfaceMethodIfProxy(PointerSize pointer_size) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 622 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 623 | |
Alex Light | 4ba388a | 2017-01-27 10:26:49 -0800 | [diff] [blame] | 624 | ArtMethod* GetNonObsoleteMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
| 625 | |
Mathieu Chartier | fc58af4 | 2015-04-16 18:00:39 -0700 | [diff] [blame] | 626 | // May cause thread suspension due to class resolution. |
| 627 | bool EqualParameters(Handle<mirror::ObjectArray<mirror::Class>> params) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 628 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | fc58af4 | 2015-04-16 18:00:39 -0700 | [diff] [blame] | 629 | |
Vladimir Marko | 1463285 | 2015-08-17 12:07:23 +0100 | [diff] [blame] | 630 | // Size of an instance of this native class. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 631 | static size_t Size(PointerSize pointer_size) { |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 632 | return PtrSizedFieldsOffset(pointer_size) + |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 633 | (sizeof(PtrSizedFields) / sizeof(void*)) * static_cast<size_t>(pointer_size); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 634 | } |
| 635 | |
Vladimir Marko | 1463285 | 2015-08-17 12:07:23 +0100 | [diff] [blame] | 636 | // Alignment of an instance of this native class. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 637 | static size_t Alignment(PointerSize pointer_size) { |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 638 | // The ArtMethod alignment is the same as image pointer size. This differs from |
Vladimir Marko | 1463285 | 2015-08-17 12:07:23 +0100 | [diff] [blame] | 639 | // alignof(ArtMethod) if cross-compiling with pointer_size != sizeof(void*). |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 640 | return static_cast<size_t>(pointer_size); |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 641 | } |
| 642 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 643 | void CopyFrom(ArtMethod* src, PointerSize image_pointer_size) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 644 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 645 | |
Bill Buzbee | 1d011d9 | 2016-04-04 16:59:29 +0000 | [diff] [blame] | 646 | // Note, hotness_counter_ updates are non-atomic but it doesn't need to be precise. Also, |
| 647 | // given that the counter is only 16 bits wide we can expect wrap-around in some |
| 648 | // situations. Consumers of hotness_count_ must be able to deal with that. |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 649 | uint16_t IncrementCounter() { |
| 650 | return ++hotness_count_; |
| 651 | } |
| 652 | |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 653 | void ClearCounter() { |
| 654 | hotness_count_ = 0; |
| 655 | } |
| 656 | |
Bill Buzbee | 1d011d9 | 2016-04-04 16:59:29 +0000 | [diff] [blame] | 657 | void SetCounter(int16_t hotness_count) { |
| 658 | hotness_count_ = hotness_count; |
| 659 | } |
| 660 | |
| 661 | uint16_t GetCounter() const { |
| 662 | return hotness_count_; |
| 663 | } |
| 664 | |
Nicolas Geoffray | 8eaa8e5 | 2017-11-13 17:47:50 +0000 | [diff] [blame] | 665 | const uint8_t* GetQuickenedInfo() REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 6bc4374 | 2015-10-12 18:11:10 +0100 | [diff] [blame] | 666 | |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 667 | // Returns the method header for the compiled code containing 'pc'. Note that runtime |
| 668 | // methods will return null for this method, as they are not oat based. |
| 669 | const OatQuickMethodHeader* GetOatQuickMethodHeader(uintptr_t pc) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 670 | REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 671 | |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 672 | // Get compiled code for the method, return null if no code exists. |
| 673 | const void* GetOatMethodQuickCode(PointerSize pointer_size) |
| 674 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 675 | |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 676 | // Returns whether the method has any compiled code, JIT or AOT. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 677 | bool HasAnyCompiledCode() REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 678 | |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 679 | // Returns a human-readable signature for 'm'. Something like "a.b.C.m" or |
| 680 | // "a.b.C.m(II)V" (depending on the value of 'with_signature'). |
| 681 | static std::string PrettyMethod(ArtMethod* m, bool with_signature = true) |
| 682 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 683 | std::string PrettyMethod(bool with_signature = true) |
| 684 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 685 | // Returns the JNI native function name for the non-overloaded method 'm'. |
| 686 | std::string JniShortName() |
| 687 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 688 | // Returns the JNI native function name for the overloaded method 'm'. |
| 689 | std::string JniLongName() |
| 690 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 691 | |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 692 | // Update heap objects and non-entrypoint pointers by the passed in visitor for image relocation. |
| 693 | // Does not use read barrier. |
| 694 | template <typename Visitor> |
Vladimir Marko | 5122e6b | 2017-08-17 16:10:09 +0100 | [diff] [blame] | 695 | ALWAYS_INLINE void UpdateObjectsForImageRelocation(const Visitor& visitor) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 696 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 697 | |
| 698 | // Update entry points by passing them through the visitor. |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 699 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier, typename Visitor> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 700 | ALWAYS_INLINE void UpdateEntrypoints(const Visitor& visitor, PointerSize pointer_size); |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 701 | |
David Sehr | a49e053 | 2017-08-25 08:05:29 -0700 | [diff] [blame] | 702 | // Visit the individual members of an ArtMethod. Used by imgdiag. |
| 703 | // As imgdiag does not support mixing instruction sets or pointer sizes (e.g., using imgdiag32 |
| 704 | // to inspect 64-bit images, etc.), we can go beneath the accessors directly to the class members. |
| 705 | template <typename VisitorFunc> |
| 706 | void VisitMembers(VisitorFunc& visitor) { |
| 707 | DCHECK(IsImagePointerSize(kRuntimePointerSize)); |
| 708 | visitor(this, &declaring_class_, "declaring_class_"); |
| 709 | visitor(this, &access_flags_, "access_flags_"); |
| 710 | visitor(this, &dex_code_item_offset_, "dex_code_item_offset_"); |
| 711 | visitor(this, &dex_method_index_, "dex_method_index_"); |
| 712 | visitor(this, &method_index_, "method_index_"); |
| 713 | visitor(this, &hotness_count_, "hotness_count_"); |
| 714 | visitor(this, &ptr_sized_fields_.data_, "ptr_sized_fields_.data_"); |
| 715 | visitor(this, |
| 716 | &ptr_sized_fields_.entry_point_from_quick_compiled_code_, |
| 717 | "ptr_sized_fields_.entry_point_from_quick_compiled_code_"); |
| 718 | } |
| 719 | |
Mathieu Chartier | 808c7a5 | 2017-12-15 11:19:33 -0800 | [diff] [blame] | 720 | // Returns the dex instructions of the code item for the art method. Returns an empty array for |
| 721 | // the null code item case. |
| 722 | ALWAYS_INLINE CodeItemInstructionAccessor DexInstructions() |
Mathieu Chartier | 69147f1 | 2017-11-06 20:02:24 -0800 | [diff] [blame] | 723 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 724 | |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 725 | protected: |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 726 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 727 | // The class we are a part of. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 728 | GcRoot<mirror::Class> declaring_class_; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 729 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 730 | // Access flags; low 16 bits are defined by spec. |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 731 | // Getting and setting this flag needs to be atomic when concurrency is |
| 732 | // possible, e.g. after this method's class is linked. Such as when setting |
| 733 | // verifier flags and single-implementation flag. |
| 734 | std::atomic<std::uint32_t> access_flags_; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 735 | |
| 736 | /* Dex file fields. The defining dex file is available via declaring_class_->dex_cache_ */ |
| 737 | |
| 738 | // Offset to the CodeItem. |
| 739 | uint32_t dex_code_item_offset_; |
| 740 | |
| 741 | // Index into method_ids of the dex file associated with this method. |
| 742 | uint32_t dex_method_index_; |
| 743 | |
| 744 | /* End of dex file fields. */ |
| 745 | |
| 746 | // Entry within a dispatch table for this method. For static/direct methods the index is into |
| 747 | // the declaringClass.directMethods, for virtual methods the vtable and for interface methods the |
| 748 | // ifTable. |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 749 | uint16_t method_index_; |
| 750 | |
Bill Buzbee | 1d011d9 | 2016-04-04 16:59:29 +0000 | [diff] [blame] | 751 | // The hotness we measure for this method. Managed by the interpreter. Not atomic, as we allow |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 752 | // missing increments: if the method is hot, we will see it eventually. |
| 753 | uint16_t hotness_count_; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 754 | |
Mathieu Chartier | eace458 | 2014-11-24 18:29:54 -0800 | [diff] [blame] | 755 | // Fake padding field gets inserted here. |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 756 | |
| 757 | // Must be the last fields in the method. |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 758 | struct PtrSizedFields { |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 759 | // Depending on the method type, the data is |
| 760 | // - native method: pointer to the JNI function registered to this method |
| 761 | // or a function to resolve the JNI function, |
| 762 | // - conflict method: ImtConflictTable, |
| 763 | // - abstract/interface method: the single-implementation if any, |
| 764 | // - proxy method: the original interface method or constructor, |
| 765 | // - other methods: the profiling data. |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 766 | void* data_; |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 767 | |
| 768 | // Method dispatch from quick compiled code invokes this pointer which may cause bridging into |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 769 | // the interpreter. |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 770 | void* entry_point_from_quick_compiled_code_; |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 771 | } ptr_sized_fields_; |
| 772 | |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 773 | private: |
Alex Light | f2f1c9d | 2017-03-15 15:35:46 +0000 | [diff] [blame] | 774 | uint16_t FindObsoleteDexClassDefIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
| 775 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 776 | static constexpr size_t PtrSizedFieldsOffset(PointerSize pointer_size) { |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 777 | // Round up to pointer size for padding field. Tested in art_method.cc. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 778 | return RoundUp(offsetof(ArtMethod, hotness_count_) + sizeof(hotness_count_), |
| 779 | static_cast<size_t>(pointer_size)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 780 | } |
| 781 | |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 782 | // Compare given pointer size to the image pointer size. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 783 | static bool IsImagePointerSize(PointerSize pointer_size); |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 784 | |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 785 | dex::TypeIndex GetReturnTypeIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
| 786 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 787 | template<typename T> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 788 | ALWAYS_INLINE T GetNativePointer(MemberOffset offset, PointerSize pointer_size) const { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 789 | static_assert(std::is_pointer<T>::value, "T must be a pointer type"); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 790 | const auto addr = reinterpret_cast<uintptr_t>(this) + offset.Uint32Value(); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 791 | if (pointer_size == PointerSize::k32) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 792 | return reinterpret_cast<T>(*reinterpret_cast<const uint32_t*>(addr)); |
| 793 | } else { |
| 794 | auto v = *reinterpret_cast<const uint64_t*>(addr); |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 795 | return reinterpret_cast<T>(dchecked_integral_cast<uintptr_t>(v)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 796 | } |
| 797 | } |
| 798 | |
| 799 | template<typename T> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 800 | ALWAYS_INLINE void SetNativePointer(MemberOffset offset, T new_value, PointerSize pointer_size) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 801 | static_assert(std::is_pointer<T>::value, "T must be a pointer type"); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 802 | const auto addr = reinterpret_cast<uintptr_t>(this) + offset.Uint32Value(); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 803 | if (pointer_size == PointerSize::k32) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 804 | uintptr_t ptr = reinterpret_cast<uintptr_t>(new_value); |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 805 | *reinterpret_cast<uint32_t*>(addr) = dchecked_integral_cast<uint32_t>(ptr); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 806 | } else { |
| 807 | *reinterpret_cast<uint64_t*>(addr) = reinterpret_cast<uintptr_t>(new_value); |
| 808 | } |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 809 | } |
| 810 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 811 | template <ReadBarrierOption kReadBarrierOption> void GetAccessFlagsDCheck(); |
| 812 | |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 813 | static inline bool IsValidIntrinsicUpdate(uint32_t modifier) { |
| 814 | return (((modifier & kAccIntrinsic) == kAccIntrinsic) && |
| 815 | (((modifier & ~(kAccIntrinsic | kAccIntrinsicBits)) == 0))); |
| 816 | } |
| 817 | |
| 818 | static inline bool OverlapsIntrinsicBits(uint32_t modifier) { |
| 819 | return (modifier & kAccIntrinsicBits) != 0; |
| 820 | } |
| 821 | |
| 822 | // This setter guarantees atomicity. |
| 823 | void AddAccessFlags(uint32_t flag) { |
| 824 | DCHECK(!IsIntrinsic() || !OverlapsIntrinsicBits(flag) || IsValidIntrinsicUpdate(flag)); |
| 825 | uint32_t old_access_flags; |
| 826 | uint32_t new_access_flags; |
| 827 | do { |
| 828 | old_access_flags = access_flags_.load(std::memory_order_relaxed); |
| 829 | new_access_flags = old_access_flags | flag; |
| 830 | } while (!access_flags_.compare_exchange_weak(old_access_flags, new_access_flags)); |
| 831 | } |
| 832 | |
| 833 | // This setter guarantees atomicity. |
| 834 | void ClearAccessFlags(uint32_t flag) { |
| 835 | DCHECK(!IsIntrinsic() || !OverlapsIntrinsicBits(flag) || IsValidIntrinsicUpdate(flag)); |
| 836 | uint32_t old_access_flags; |
| 837 | uint32_t new_access_flags; |
| 838 | do { |
| 839 | old_access_flags = access_flags_.load(std::memory_order_relaxed); |
| 840 | new_access_flags = old_access_flags & ~flag; |
| 841 | } while (!access_flags_.compare_exchange_weak(old_access_flags, new_access_flags)); |
| 842 | } |
| 843 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 844 | DISALLOW_COPY_AND_ASSIGN(ArtMethod); // Need to use CopyFrom to deal with 32 vs 64 bits. |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 845 | }; |
| 846 | |
Alex Light | d78ddec | 2017-04-18 15:20:38 -0700 | [diff] [blame] | 847 | class MethodCallback { |
| 848 | public: |
| 849 | virtual ~MethodCallback() {} |
| 850 | |
| 851 | virtual void RegisterNativeMethod(ArtMethod* method, |
| 852 | const void* original_implementation, |
| 853 | /*out*/void** new_implementation) |
| 854 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
| 855 | }; |
| 856 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 857 | } // namespace art |
| 858 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 859 | #endif // ART_RUNTIME_ART_METHOD_H_ |