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> |
Mathieu Chartier | 7f8678e | 2019-08-30 16:22:28 -0700 | [diff] [blame] | 21 | #include <limits> |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 22 | |
Andreas Gampe | 5794381 | 2017-12-06 21:39:13 -0800 | [diff] [blame] | 23 | #include <android-base/logging.h> |
Andreas Gampe | 7458a7a | 2019-01-02 10:32:11 -0800 | [diff] [blame] | 24 | #include <jni.h> |
Andreas Gampe | 5794381 | 2017-12-06 21:39:13 -0800 | [diff] [blame] | 25 | |
Mathieu Chartier | 210531f | 2018-01-12 10:15:51 -0800 | [diff] [blame] | 26 | #include "base/array_ref.h" |
Nicolas Geoffray | 6bc4374 | 2015-10-12 18:11:10 +0100 | [diff] [blame] | 27 | #include "base/bit_utils.h" |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 28 | #include "base/casts.h" |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 29 | #include "base/enums.h" |
Andreas Gampe | 5794381 | 2017-12-06 21:39:13 -0800 | [diff] [blame] | 30 | #include "base/macros.h" |
Andreas Gampe | dcc528d | 2017-12-07 13:37:10 -0800 | [diff] [blame] | 31 | #include "base/runtime_debug.h" |
Andreas Gampe | 3f1dcd3 | 2018-12-28 09:39:56 -0800 | [diff] [blame] | 32 | #include "dex/dex_file_structs.h" |
David Sehr | 8c0961f | 2018-01-23 16:11:38 -0800 | [diff] [blame] | 33 | #include "dex/modifiers.h" |
David Sehr | 67bf42e | 2018-02-26 16:43:04 -0800 | [diff] [blame] | 34 | #include "dex/primitive.h" |
Hiroshi Yamauchi | 94f7b49 | 2014-07-22 18:08:23 -0700 | [diff] [blame] | 35 | #include "gc_root.h" |
Mathieu Chartier | 28357fa | 2016-10-18 16:27:40 -0700 | [diff] [blame] | 36 | #include "obj_ptr.h" |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 37 | #include "offsets.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 | |
Andreas Gampe | fe613a7 | 2019-05-01 15:54:20 -0700 | [diff] [blame] | 42 | class CodeItemDataAccessor; |
| 43 | class CodeItemDebugInfoAccessor; |
| 44 | class CodeItemInstructionAccessor; |
Andreas Gampe | 3f1dcd3 | 2018-12-28 09:39:56 -0800 | [diff] [blame] | 45 | class DexFile; |
David Sehr | 9323e6e | 2016-09-13 08:58:35 -0700 | [diff] [blame] | 46 | template<class T> class Handle; |
Andreas Gampe | 75a7db6 | 2016-09-26 12:04:26 -0700 | [diff] [blame] | 47 | class ImtConflictTable; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 48 | enum InvokeType : uint32_t; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 49 | union JValue; |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 50 | class OatQuickMethodHeader; |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 51 | class ProfilingInfo; |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 52 | class ScopedObjectAccessAlreadyRunnable; |
Jeff Hao | 1674363 | 2013-05-08 10:59:04 -0700 | [diff] [blame] | 53 | class ShadowFrame; |
Andreas Gampe | b79674c | 2019-05-14 16:16:46 -0700 | [diff] [blame] | 54 | class Signature; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 55 | |
| 56 | namespace mirror { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 57 | class Array; |
| 58 | class Class; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 59 | class ClassLoader; |
| 60 | class DexCache; |
Mathieu Chartier | e42888f | 2016-04-14 10:49:19 -0700 | [diff] [blame] | 61 | class IfTable; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 62 | class Object; |
| 63 | template <typename MirrorType> class ObjectArray; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 64 | class PointerArray; |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 65 | class String; |
Vladimir Marko | 07bfbac | 2017-07-06 14:55:02 +0100 | [diff] [blame] | 66 | |
| 67 | template <typename T> struct NativeDexCachePair; |
| 68 | using MethodDexCachePair = NativeDexCachePair<ArtMethod>; |
| 69 | using MethodDexCacheType = std::atomic<MethodDexCachePair>; |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 70 | } // namespace mirror |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 71 | |
Roland Levillain | bbc6e7e | 2018-08-24 16:58:47 +0100 | [diff] [blame] | 72 | class ArtMethod final { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 73 | public: |
Andreas Gampe | aea05c1 | 2017-05-19 08:45:02 -0700 | [diff] [blame] | 74 | // Should the class state be checked on sensitive operations? |
| 75 | DECLARE_RUNTIME_DEBUG_FLAG(kCheckDeclaringClassState); |
Andreas Gampe | b1106e2 | 2017-02-23 11:34:48 -0800 | [diff] [blame] | 76 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 77 | // The runtime dex_method_index is kDexNoIndex. To lower dependencies, we use this |
| 78 | // constexpr, and ensure that the value is correct in art_method.cc. |
| 79 | static constexpr uint32_t kRuntimeMethodDexMethodIndex = 0xFFFFFFFF; |
| 80 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 81 | 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] | 82 | method_index_(0), hotness_count_(0) { } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 83 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 84 | ArtMethod(ArtMethod* src, PointerSize image_pointer_size) { |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 85 | CopyFrom(src, image_pointer_size); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 86 | } |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 87 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 88 | static ArtMethod* FromReflectedMethod(const ScopedObjectAccessAlreadyRunnable& soa, |
| 89 | jobject jlr_method) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 90 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 91 | |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 92 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Vladimir Marko | d93e374 | 2018-07-18 10:58:13 +0100 | [diff] [blame] | 93 | ALWAYS_INLINE ObjPtr<mirror::Class> GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 94 | |
Mathieu Chartier | e7f75f3 | 2016-02-01 16:08:15 -0800 | [diff] [blame] | 95 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Vladimir Marko | d93e374 | 2018-07-18 10:58:13 +0100 | [diff] [blame] | 96 | ALWAYS_INLINE ObjPtr<mirror::Class> GetDeclaringClassUnchecked() |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 97 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 98 | |
Mathieu Chartier | 8c19d24 | 2017-03-06 12:35:10 -0800 | [diff] [blame] | 99 | mirror::CompressedReference<mirror::Object>* GetDeclaringClassAddressWithoutBarrier() { |
| 100 | return declaring_class_.AddressWithoutBarrier(); |
| 101 | } |
| 102 | |
Mathieu Chartier | 28357fa | 2016-10-18 16:27:40 -0700 | [diff] [blame] | 103 | void SetDeclaringClass(ObjPtr<mirror::Class> new_declaring_class) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 104 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 105 | |
Vladimir Marko | d93e374 | 2018-07-18 10:58:13 +0100 | [diff] [blame] | 106 | bool CASDeclaringClass(ObjPtr<mirror::Class> expected_class, ObjPtr<mirror::Class> desired_class) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 107 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | 10e5ea9 | 2015-08-13 12:56:31 -0700 | [diff] [blame] | 108 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 109 | static constexpr MemberOffset DeclaringClassOffset() { |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 110 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, declaring_class_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 111 | } |
| 112 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 113 | uint32_t GetAccessFlags() const { |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 114 | return access_flags_.load(std::memory_order_relaxed); |
| 115 | } |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 116 | |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 117 | // This version should only be called when it's certain there is no |
| 118 | // concurrency so there is no need to guarantee atomicity. For example, |
| 119 | // before the method is linked. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 120 | void SetAccessFlags(uint32_t new_access_flags) REQUIRES_SHARED(Locks::mutator_lock_) { |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 121 | access_flags_.store(new_access_flags, std::memory_order_relaxed); |
| 122 | } |
| 123 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 124 | static constexpr MemberOffset AccessFlagsOffset() { |
Vladimir Marko | 5122e6b | 2017-08-17 16:10:09 +0100 | [diff] [blame] | 125 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, access_flags_)); |
| 126 | } |
| 127 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 128 | // Approximate what kind of method call would be used for this method. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 129 | InvokeType GetInvokeType() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 130 | |
| 131 | // Returns true if the method is declared public. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 132 | bool IsPublic() const { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 133 | return (GetAccessFlags() & kAccPublic) != 0; |
| 134 | } |
| 135 | |
| 136 | // Returns true if the method is declared private. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 137 | bool IsPrivate() const { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 138 | return (GetAccessFlags() & kAccPrivate) != 0; |
| 139 | } |
| 140 | |
| 141 | // Returns true if the method is declared static. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 142 | bool IsStatic() const { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 143 | return (GetAccessFlags() & kAccStatic) != 0; |
| 144 | } |
| 145 | |
Orion Hodson | 6c4921b | 2016-09-21 15:41:06 +0100 | [diff] [blame] | 146 | // Returns true if the method is a constructor according to access flags. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 147 | bool IsConstructor() const { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 148 | return (GetAccessFlags() & kAccConstructor) != 0; |
| 149 | } |
| 150 | |
Orion Hodson | 6c4921b | 2016-09-21 15:41:06 +0100 | [diff] [blame] | 151 | // Returns true if the method is a class initializer according to access flags. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 152 | bool IsClassInitializer() const { |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 153 | return IsConstructor() && IsStatic(); |
| 154 | } |
| 155 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 156 | // Returns true if the method is static, private, or a constructor. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 157 | bool IsDirect() const { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 158 | return IsDirect(GetAccessFlags()); |
| 159 | } |
| 160 | |
| 161 | static bool IsDirect(uint32_t access_flags) { |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 162 | constexpr uint32_t direct = kAccStatic | kAccPrivate | kAccConstructor; |
| 163 | return (access_flags & direct) != 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | // Returns true if the method is declared synchronized. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 167 | bool IsSynchronized() const { |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 168 | constexpr uint32_t synchonized = kAccSynchronized | kAccDeclaredSynchronized; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 169 | return (GetAccessFlags() & synchonized) != 0; |
| 170 | } |
| 171 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 172 | bool IsFinal() const { |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 173 | return (GetAccessFlags() & kAccFinal) != 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 174 | } |
| 175 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 176 | bool IsIntrinsic() const { |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 177 | return (GetAccessFlags() & kAccIntrinsic) != 0; |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 178 | } |
| 179 | |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 180 | ALWAYS_INLINE void SetIntrinsic(uint32_t intrinsic) REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 181 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 182 | uint32_t GetIntrinsic() const { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 183 | static const int kAccFlagsShift = CTZ(kAccIntrinsicBits); |
| 184 | static_assert(IsPowerOfTwo((kAccIntrinsicBits >> kAccFlagsShift) + 1), |
| 185 | "kAccIntrinsicBits are not continuous"); |
| 186 | static_assert((kAccIntrinsic & kAccIntrinsicBits) == 0, |
| 187 | "kAccIntrinsic overlaps kAccIntrinsicBits"); |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 188 | DCHECK(IsIntrinsic()); |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 189 | return (GetAccessFlags() & kAccIntrinsicBits) >> kAccFlagsShift; |
| 190 | } |
| 191 | |
David Brazdil | 904e75a | 2018-05-15 13:45:08 +0100 | [diff] [blame] | 192 | void SetNotIntrinsic() REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 193 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 194 | bool IsCopied() const { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 195 | static_assert((kAccCopied & (kAccIntrinsic | kAccIntrinsicBits)) == 0, |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 196 | "kAccCopied conflicts with intrinsic modifier"); |
Alex Light | 3612149 | 2016-02-22 13:43:29 -0800 | [diff] [blame] | 197 | const bool copied = (GetAccessFlags() & kAccCopied) != 0; |
| 198 | // (IsMiranda() || IsDefaultConflicting()) implies copied |
| 199 | DCHECK(!(IsMiranda() || IsDefaultConflicting()) || copied) |
| 200 | << "Miranda or default-conflict methods must always be copied."; |
| 201 | return copied; |
Alex Light | fcea56f | 2016-02-17 11:59:05 -0800 | [diff] [blame] | 202 | } |
| 203 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 204 | bool IsMiranda() const { |
Nicolas Geoffray | e32d24c | 2019-07-05 10:28:59 +0100 | [diff] [blame] | 205 | // The kAccMiranda flag value is used with a different meaning for native methods and methods |
| 206 | // marked kAccCompileDontBother, so we need to check these flags as well. |
| 207 | return (GetAccessFlags() & (kAccNative | kAccMiranda | kAccCompileDontBother)) == kAccMiranda; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 208 | } |
| 209 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 210 | // Returns true if invoking this method will not throw an AbstractMethodError or |
| 211 | // IncompatibleClassChangeError. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 212 | bool IsInvokable() const { |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 213 | return !IsAbstract() && !IsDefaultConflicting(); |
| 214 | } |
| 215 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 216 | bool IsPreCompiled() const { |
Nicolas Geoffray | c76232e | 2020-03-18 11:23:33 +0000 | [diff] [blame] | 217 | if (IsIntrinsic()) { |
| 218 | // kAccCompileDontBother overlaps with kAccIntrinsicBits. |
| 219 | return false; |
| 220 | } |
Nicolas Geoffray | 3238440 | 2019-07-17 20:06:44 +0100 | [diff] [blame] | 221 | uint32_t expected = (kAccPreCompiled | kAccCompileDontBother); |
Nicolas Geoffray | e32d24c | 2019-07-05 10:28:59 +0100 | [diff] [blame] | 222 | return (GetAccessFlags() & expected) == expected; |
| 223 | } |
| 224 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 225 | void SetPreCompiled() REQUIRES_SHARED(Locks::mutator_lock_) { |
Nicolas Geoffray | e32d24c | 2019-07-05 10:28:59 +0100 | [diff] [blame] | 226 | DCHECK(IsInvokable()); |
| 227 | DCHECK(IsCompilable()); |
Nicolas Geoffray | 3238440 | 2019-07-17 20:06:44 +0100 | [diff] [blame] | 228 | AddAccessFlags(kAccPreCompiled | kAccCompileDontBother); |
Nicolas Geoffray | e32d24c | 2019-07-05 10:28:59 +0100 | [diff] [blame] | 229 | } |
| 230 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 231 | void ClearPreCompiled() REQUIRES_SHARED(Locks::mutator_lock_) { |
Nicolas Geoffray | 3238440 | 2019-07-17 20:06:44 +0100 | [diff] [blame] | 232 | ClearAccessFlags(kAccPreCompiled | kAccCompileDontBother); |
Nicolas Geoffray | e32d24c | 2019-07-05 10:28:59 +0100 | [diff] [blame] | 233 | } |
| 234 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 235 | bool IsCompilable() const { |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 236 | if (IsIntrinsic()) { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 237 | // kAccCompileDontBother overlaps with kAccIntrinsicBits. |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 238 | return true; |
| 239 | } |
Nicolas Geoffray | 3238440 | 2019-07-17 20:06:44 +0100 | [diff] [blame] | 240 | if (IsPreCompiled()) { |
Nicolas Geoffray | e32d24c | 2019-07-05 10:28:59 +0100 | [diff] [blame] | 241 | return true; |
| 242 | } |
Nicolas Geoffray | 250a378 | 2016-04-20 16:27:53 +0100 | [diff] [blame] | 243 | return (GetAccessFlags() & kAccCompileDontBother) == 0; |
| 244 | } |
| 245 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 246 | void ClearDontCompile() REQUIRES_SHARED(Locks::mutator_lock_) { |
Alex Light | c2d0c96 | 2019-10-23 14:14:25 -0700 | [diff] [blame] | 247 | DCHECK(!IsMiranda()); |
| 248 | ClearAccessFlags(kAccCompileDontBother); |
| 249 | } |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 250 | |
| 251 | void SetDontCompile() REQUIRES_SHARED(Locks::mutator_lock_) { |
Nicolas Geoffray | e32d24c | 2019-07-05 10:28:59 +0100 | [diff] [blame] | 252 | DCHECK(!IsMiranda()); |
Alex Light | fcbafb3 | 2017-02-02 15:09:54 -0800 | [diff] [blame] | 253 | AddAccessFlags(kAccCompileDontBother); |
| 254 | } |
| 255 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 256 | // A default conflict method is a special sentinel method that stands for a conflict between |
| 257 | // multiple default methods. It cannot be invoked, throwing an IncompatibleClassChangeError if one |
| 258 | // attempts to do so. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 259 | bool IsDefaultConflicting() const { |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 260 | if (IsIntrinsic()) { |
| 261 | return false; |
| 262 | } |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 263 | return (GetAccessFlags() & kAccDefaultConflict) != 0u; |
| 264 | } |
| 265 | |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 266 | // This is set by the class linker. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 267 | bool IsDefault() const { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 268 | static_assert((kAccDefault & (kAccIntrinsic | kAccIntrinsicBits)) == 0, |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 269 | "kAccDefault conflicts with intrinsic modifier"); |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 270 | return (GetAccessFlags() & kAccDefault) != 0; |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 271 | } |
| 272 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 273 | bool IsObsolete() const { |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 274 | return (GetAccessFlags() & kAccObsoleteMethod) != 0; |
Alex Light | a01de59 | 2016-11-15 10:43:06 -0800 | [diff] [blame] | 275 | } |
| 276 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 277 | void SetIsObsolete() REQUIRES_SHARED(Locks::mutator_lock_) { |
Alex Light | fcbafb3 | 2017-02-02 15:09:54 -0800 | [diff] [blame] | 278 | AddAccessFlags(kAccObsoleteMethod); |
Alex Light | dba6148 | 2016-12-21 08:20:29 -0800 | [diff] [blame] | 279 | } |
| 280 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 281 | bool IsNative() const { |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 282 | return (GetAccessFlags() & kAccNative) != 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 283 | } |
| 284 | |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 285 | // Checks to see if the method was annotated with @dalvik.annotation.optimization.FastNative. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 286 | bool IsFastNative() const { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 287 | // The presence of the annotation is checked by ClassLinker and recorded in access flags. |
| 288 | // The kAccFastNative flag value is used with a different meaning for non-native methods, |
| 289 | // so we need to check the kAccNative flag as well. |
Andreas Gampe | cbc96b8 | 2015-09-30 20:05:24 +0000 | [diff] [blame] | 290 | constexpr uint32_t mask = kAccFastNative | kAccNative; |
Ian Rogers | 16ce092 | 2014-01-10 14:59:36 -0800 | [diff] [blame] | 291 | return (GetAccessFlags() & mask) == mask; |
Ian Rogers | 1eb512d | 2013-10-18 15:42:20 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 294 | // Checks to see if the method was annotated with @dalvik.annotation.optimization.CriticalNative. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 295 | bool IsCriticalNative() const { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 296 | // The presence of the annotation is checked by ClassLinker and recorded in access flags. |
| 297 | // The kAccCriticalNative flag value is used with a different meaning for non-native methods, |
| 298 | // so we need to check the kAccNative flag as well. |
| 299 | constexpr uint32_t mask = kAccCriticalNative | kAccNative; |
| 300 | return (GetAccessFlags() & mask) == mask; |
| 301 | } |
| 302 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 303 | bool IsAbstract() const { |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 304 | return (GetAccessFlags() & kAccAbstract) != 0; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 305 | } |
| 306 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 307 | bool IsSynthetic() const { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 308 | return (GetAccessFlags() & kAccSynthetic) != 0; |
| 309 | } |
| 310 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 311 | bool IsVarargs() const { |
Orion Hodson | cfa325e | 2016-10-13 10:25:54 +0100 | [diff] [blame] | 312 | return (GetAccessFlags() & kAccVarargs) != 0; |
| 313 | } |
| 314 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 315 | bool IsProxyMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 316 | |
Orion Hodson | eb4d19b | 2017-11-06 15:49:23 +0000 | [diff] [blame] | 317 | bool IsPolymorphicSignature() REQUIRES_SHARED(Locks::mutator_lock_); |
Orion Hodson | 43f0cdb | 2017-10-10 14:47:32 +0100 | [diff] [blame] | 318 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 319 | bool UseFastInterpreterToInterpreterInvoke() const { |
David Srbecky | 9581e61 | 2018-10-30 14:29:43 +0000 | [diff] [blame] | 320 | // The bit is applicable only if the method is not intrinsic. |
| 321 | constexpr uint32_t mask = kAccFastInterpreterToInterpreterInvoke | kAccIntrinsic; |
| 322 | return (GetAccessFlags() & mask) == kAccFastInterpreterToInterpreterInvoke; |
| 323 | } |
| 324 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 325 | void SetFastInterpreterToInterpreterInvokeFlag() REQUIRES_SHARED(Locks::mutator_lock_) { |
David Srbecky | 9581e61 | 2018-10-30 14:29:43 +0000 | [diff] [blame] | 326 | DCHECK(!IsIntrinsic()); |
| 327 | AddAccessFlags(kAccFastInterpreterToInterpreterInvoke); |
| 328 | } |
| 329 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 330 | void ClearFastInterpreterToInterpreterInvokeFlag() REQUIRES_SHARED(Locks::mutator_lock_) { |
David Srbecky | 9581e61 | 2018-10-30 14:29:43 +0000 | [diff] [blame] | 331 | if (!IsIntrinsic()) { |
| 332 | ClearAccessFlags(kAccFastInterpreterToInterpreterInvoke); |
| 333 | } |
| 334 | } |
| 335 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 336 | bool SkipAccessChecks() const { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 337 | // The kAccSkipAccessChecks flag value is used with a different meaning for native methods, |
| 338 | // so we need to check the kAccNative flag as well. |
| 339 | return (GetAccessFlags() & (kAccSkipAccessChecks | kAccNative)) == kAccSkipAccessChecks; |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 340 | } |
| 341 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 342 | void SetSkipAccessChecks() REQUIRES_SHARED(Locks::mutator_lock_) { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 343 | // SkipAccessChecks() is applicable only to non-native methods. |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 344 | DCHECK(!IsNative()); |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 345 | AddAccessFlags(kAccSkipAccessChecks); |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 346 | } |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 347 | void ClearSkipAccessChecks() REQUIRES_SHARED(Locks::mutator_lock_) { |
Alex Light | b1eebde | 2019-10-22 16:30:47 +0000 | [diff] [blame] | 348 | // SkipAccessChecks() is applicable only to non-native methods. |
| 349 | DCHECK(!IsNative()); |
| 350 | ClearAccessFlags(kAccSkipAccessChecks); |
| 351 | } |
Sebastien Hertz | 233ea8e | 2013-06-06 11:57:09 +0200 | [diff] [blame] | 352 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 353 | bool PreviouslyWarm() const { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 354 | if (IsIntrinsic()) { |
| 355 | // kAccPreviouslyWarm overlaps with kAccIntrinsicBits. |
| 356 | return true; |
| 357 | } |
| 358 | return (GetAccessFlags() & kAccPreviouslyWarm) != 0; |
| 359 | } |
| 360 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 361 | void SetPreviouslyWarm() REQUIRES_SHARED(Locks::mutator_lock_) { |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 362 | if (IsIntrinsic()) { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 363 | // kAccPreviouslyWarm overlaps with kAccIntrinsicBits. |
| 364 | return; |
| 365 | } |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 366 | AddAccessFlags(kAccPreviouslyWarm); |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 367 | } |
| 368 | |
Andreas Gampe | 56fdd0e | 2016-04-28 14:56:54 -0700 | [diff] [blame] | 369 | // Should this method be run in the interpreter and count locks (e.g., failed structured- |
| 370 | // locking verification)? |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 371 | bool MustCountLocks() const { |
Nicolas Geoffray | 762869d | 2016-07-15 15:28:35 +0100 | [diff] [blame] | 372 | if (IsIntrinsic()) { |
| 373 | return false; |
| 374 | } |
Andreas Gampe | 56fdd0e | 2016-04-28 14:56:54 -0700 | [diff] [blame] | 375 | return (GetAccessFlags() & kAccMustCountLocks) != 0; |
| 376 | } |
| 377 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 378 | void ClearMustCountLocks() REQUIRES_SHARED(Locks::mutator_lock_) { |
Alex Light | c2d0c96 | 2019-10-23 14:14:25 -0700 | [diff] [blame] | 379 | ClearAccessFlags(kAccMustCountLocks); |
| 380 | } |
| 381 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 382 | void SetMustCountLocks() REQUIRES_SHARED(Locks::mutator_lock_) { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 383 | AddAccessFlags(kAccMustCountLocks); |
Alex Light | b1eebde | 2019-10-22 16:30:47 +0000 | [diff] [blame] | 384 | ClearAccessFlags(kAccSkipAccessChecks); |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 385 | } |
| 386 | |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 387 | // Returns true if this method could be overridden by a default method. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 388 | bool IsOverridableByDefaultMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Alex Light | eb7c144 | 2015-08-31 13:17:42 -0700 | [diff] [blame] | 389 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 390 | bool CheckIncompatibleClassChange(InvokeType type) REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 391 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 392 | // Throws the error that would result from trying to invoke this method (i.e. |
| 393 | // IncompatibleClassChangeError or AbstractMethodError). Only call if !IsInvokable(); |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 394 | void ThrowInvocationTimeError() REQUIRES_SHARED(Locks::mutator_lock_); |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 395 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 396 | uint16_t GetMethodIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 397 | |
Mathieu Chartier | 9f3629d | 2014-10-28 18:23:02 -0700 | [diff] [blame] | 398 | // Doesn't do erroneous / unresolved class checks. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 399 | uint16_t GetMethodIndexDuringLinking() REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | 9f3629d | 2014-10-28 18:23:02 -0700 | [diff] [blame] | 400 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 401 | size_t GetVtableIndex() REQUIRES_SHARED(Locks::mutator_lock_) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 402 | return GetMethodIndex(); |
| 403 | } |
| 404 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 405 | void SetMethodIndex(uint16_t new_method_index) REQUIRES_SHARED(Locks::mutator_lock_) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 406 | // Not called within a transaction. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 407 | method_index_ = new_method_index; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 408 | } |
| 409 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 410 | static constexpr MemberOffset DexMethodIndexOffset() { |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 411 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, dex_method_index_)); |
Vladimir Marko | c136312 | 2015-04-09 14:13:13 +0100 | [diff] [blame] | 412 | } |
| 413 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 414 | static constexpr MemberOffset MethodIndexOffset() { |
Andreas Gampe | 5d08fcc | 2017-06-05 17:56:46 -0700 | [diff] [blame] | 415 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, method_index_)); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 416 | } |
| 417 | |
Nicolas Geoffray | a00b54b | 2019-12-03 14:36:42 +0000 | [diff] [blame] | 418 | static constexpr MemberOffset ImtIndexOffset() { |
| 419 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, imt_index_)); |
| 420 | } |
| 421 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 422 | uint32_t GetCodeItemOffset() const { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 423 | return dex_code_item_offset_; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 424 | } |
| 425 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 426 | void SetCodeItemOffset(uint32_t new_code_off) REQUIRES_SHARED(Locks::mutator_lock_) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 427 | // Not called within a transaction. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 428 | dex_code_item_offset_ = new_code_off; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 429 | } |
| 430 | |
| 431 | // Number of 32bit registers that would be required to hold all the arguments |
Vladimir Marko | 6e78158 | 2019-02-04 10:58:06 +0000 | [diff] [blame] | 432 | static size_t NumArgRegisters(const char* shorty); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 433 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 434 | ALWAYS_INLINE uint32_t GetDexMethodIndex() const { |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 435 | return dex_method_index_; |
| 436 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 437 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 438 | void SetDexMethodIndex(uint32_t new_idx) REQUIRES_SHARED(Locks::mutator_lock_) { |
Sebastien Hertz | d2fe10a | 2014-01-15 10:20:56 +0100 | [diff] [blame] | 439 | // Not called within a transaction. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 440 | dex_method_index_ = new_idx; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 441 | } |
| 442 | |
Vladimir Marko | d93e374 | 2018-07-18 10:58:13 +0100 | [diff] [blame] | 443 | // Lookup the Class from the type index into this method's dex cache. |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 444 | ObjPtr<mirror::Class> LookupResolvedClassFromTypeIndex(dex::TypeIndex type_idx) |
| 445 | REQUIRES_SHARED(Locks::mutator_lock_); |
Vladimir Marko | d93e374 | 2018-07-18 10:58:13 +0100 | [diff] [blame] | 446 | // Resolve the Class from the type index into this method's dex cache. |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 447 | ObjPtr<mirror::Class> ResolveClassFromTypeIndex(dex::TypeIndex type_idx) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 448 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | a048560 | 2014-12-02 15:48:04 -0800 | [diff] [blame] | 449 | |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 450 | // 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] | 451 | bool HasSameNameAndSignature(ArtMethod* other) REQUIRES_SHARED(Locks::mutator_lock_); |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 452 | |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 453 | // Find the method that this method overrides. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 454 | ArtMethod* FindOverriddenMethod(PointerSize pointer_size) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 455 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 456 | |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 457 | // 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] | 458 | // 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] | 459 | // name and signature in the other_dexfile, such as the method index used to resolve this method |
| 460 | // in the other_dexfile. |
| 461 | uint32_t FindDexMethodIndexInOtherDexFile(const DexFile& other_dexfile, |
| 462 | uint32_t name_and_signature_idx) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 463 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 464 | |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 465 | 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] | 466 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 467 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 468 | const void* GetEntryPointFromQuickCompiledCode() const { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 469 | return GetEntryPointFromQuickCompiledCodePtrSize(kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 470 | } |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 471 | ALWAYS_INLINE |
| 472 | const void* GetEntryPointFromQuickCompiledCodePtrSize(PointerSize pointer_size) const { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 473 | return GetNativePointer<const void*>( |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 474 | EntryPointFromQuickCompiledCodeOffset(pointer_size), pointer_size); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 475 | } |
| 476 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 477 | void SetEntryPointFromQuickCompiledCode(const void* entry_point_from_quick_compiled_code) |
| 478 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 479 | SetEntryPointFromQuickCompiledCodePtrSize(entry_point_from_quick_compiled_code, |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 480 | kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 481 | } |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 482 | ALWAYS_INLINE void SetEntryPointFromQuickCompiledCodePtrSize( |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 483 | const void* entry_point_from_quick_compiled_code, PointerSize pointer_size) |
| 484 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 485 | SetNativePointer(EntryPointFromQuickCompiledCodeOffset(pointer_size), |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 486 | entry_point_from_quick_compiled_code, |
| 487 | pointer_size); |
David Srbecky | 9581e61 | 2018-10-30 14:29:43 +0000 | [diff] [blame] | 488 | // We might want to invoke compiled code, so don't use the fast path. |
| 489 | ClearFastInterpreterToInterpreterInvokeFlag(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 490 | } |
| 491 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 492 | static constexpr MemberOffset DataOffset(PointerSize pointer_size) { |
Mathieu Chartier | eace458 | 2014-11-24 18:29:54 -0800 | [diff] [blame] | 493 | return MemberOffset(PtrSizedFieldsOffset(pointer_size) + OFFSETOF_MEMBER( |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 494 | PtrSizedFields, data_) / sizeof(void*) * static_cast<size_t>(pointer_size)); |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 495 | } |
| 496 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 497 | static constexpr MemberOffset EntryPointFromJniOffset(PointerSize pointer_size) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 498 | return DataOffset(pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 499 | } |
| 500 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 501 | static constexpr MemberOffset EntryPointFromQuickCompiledCodeOffset(PointerSize pointer_size) { |
Mathieu Chartier | eace458 | 2014-11-24 18:29:54 -0800 | [diff] [blame] | 502 | return MemberOffset(PtrSizedFieldsOffset(pointer_size) + OFFSETOF_MEMBER( |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 503 | PtrSizedFields, entry_point_from_quick_compiled_code_) / sizeof(void*) |
| 504 | * static_cast<size_t>(pointer_size)); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 505 | } |
| 506 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 507 | ImtConflictTable* GetImtConflictTable(PointerSize pointer_size) const { |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 508 | DCHECK(IsRuntimeMethod()); |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 509 | return reinterpret_cast<ImtConflictTable*>(GetDataPtrSize(pointer_size)); |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 510 | } |
| 511 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 512 | ALWAYS_INLINE void SetImtConflictTable(ImtConflictTable* table, PointerSize pointer_size) |
| 513 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 514 | DCHECK(IsRuntimeMethod()); |
| 515 | SetDataPtrSize(table, pointer_size); |
| 516 | } |
| 517 | |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 518 | ProfilingInfo* GetProfilingInfo(PointerSize pointer_size) REQUIRES_SHARED(Locks::mutator_lock_) { |
Nicolas Geoffray | 226805d | 2018-12-14 10:59:02 +0000 | [diff] [blame] | 519 | if (UNLIKELY(IsNative() || IsProxyMethod() || !IsInvokable())) { |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 520 | return nullptr; |
| 521 | } |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 522 | return reinterpret_cast<ProfilingInfo*>(GetDataPtrSize(pointer_size)); |
Nicolas Geoffray | 796d630 | 2016-03-13 22:22:31 +0000 | [diff] [blame] | 523 | } |
| 524 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 525 | ALWAYS_INLINE void SetProfilingInfo(ProfilingInfo* info) REQUIRES_SHARED(Locks::mutator_lock_) { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 526 | SetDataPtrSize(info, kRuntimePointerSize); |
Nicolas Geoffray | 26705e2 | 2015-10-28 12:50:11 +0000 | [diff] [blame] | 527 | } |
| 528 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 529 | ALWAYS_INLINE void SetProfilingInfoPtrSize(ProfilingInfo* info, PointerSize pointer_size) |
| 530 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 531 | SetDataPtrSize(info, pointer_size); |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 532 | } |
| 533 | |
Nicolas Geoffray | 26705e2 | 2015-10-28 12:50:11 +0000 | [diff] [blame] | 534 | static MemberOffset ProfilingInfoOffset() { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 535 | DCHECK(IsImagePointerSize(kRuntimePointerSize)); |
| 536 | return DataOffset(kRuntimePointerSize); |
Nicolas Geoffray | 26705e2 | 2015-10-28 12:50:11 +0000 | [diff] [blame] | 537 | } |
| 538 | |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 539 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 540 | ALWAYS_INLINE bool HasSingleImplementation() REQUIRES_SHARED(Locks::mutator_lock_); |
| 541 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 542 | ALWAYS_INLINE void SetHasSingleImplementation(bool single_impl) |
| 543 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 544 | DCHECK(!IsIntrinsic()) << "conflict with intrinsic bits"; |
| 545 | if (single_impl) { |
| 546 | AddAccessFlags(kAccSingleImplementation); |
| 547 | } else { |
| 548 | ClearAccessFlags(kAccSingleImplementation); |
| 549 | } |
| 550 | } |
| 551 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 552 | ALWAYS_INLINE bool HasSingleImplementationFlag() const { |
| 553 | return (GetAccessFlags() & kAccSingleImplementation) != 0; |
| 554 | } |
| 555 | |
Alex Light | 97e7803 | 2017-06-27 17:51:55 -0700 | [diff] [blame] | 556 | // Takes a method and returns a 'canonical' one if the method is default (and therefore |
| 557 | // potentially copied from some other class). For example, this ensures that the debugger does not |
| 558 | // get confused as to which method we are in. |
| 559 | ArtMethod* GetCanonicalMethod(PointerSize pointer_size = kRuntimePointerSize) |
| 560 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 561 | |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 562 | ArtMethod* GetSingleImplementation(PointerSize pointer_size); |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 563 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 564 | ALWAYS_INLINE void SetSingleImplementation(ArtMethod* method, PointerSize pointer_size) |
| 565 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 566 | DCHECK(!IsNative()); |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 567 | // Non-abstract method's single implementation is just itself. |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 568 | DCHECK(IsAbstract()); |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 569 | SetDataPtrSize(method, pointer_size); |
| 570 | } |
| 571 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 572 | void* GetEntryPointFromJni() const { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 573 | DCHECK(IsNative()); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 574 | return GetEntryPointFromJniPtrSize(kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 575 | } |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 576 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 577 | ALWAYS_INLINE void* GetEntryPointFromJniPtrSize(PointerSize pointer_size) const { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 578 | return GetDataPtrSize(pointer_size); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 579 | } |
| 580 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 581 | void SetEntryPointFromJni(const void* entrypoint) |
| 582 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Vladimir Marko | 86c8752 | 2020-05-11 16:55:55 +0100 | [diff] [blame] | 583 | // The resolution method also has a JNI entrypoint for direct calls from |
| 584 | // compiled code to the JNI dlsym lookup stub for @CriticalNative. |
| 585 | DCHECK(IsNative() || IsRuntimeMethod()); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 586 | SetEntryPointFromJniPtrSize(entrypoint, kRuntimePointerSize); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 587 | } |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 588 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 589 | ALWAYS_INLINE void SetEntryPointFromJniPtrSize(const void* entrypoint, PointerSize pointer_size) |
| 590 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 591 | SetDataPtrSize(entrypoint, pointer_size); |
| 592 | } |
| 593 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 594 | ALWAYS_INLINE void* GetDataPtrSize(PointerSize pointer_size) const { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 595 | DCHECK(IsImagePointerSize(pointer_size)); |
| 596 | return GetNativePointer<void*>(DataOffset(pointer_size), pointer_size); |
| 597 | } |
| 598 | |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 599 | ALWAYS_INLINE void SetDataPtrSize(const void* data, PointerSize pointer_size) |
| 600 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 601 | DCHECK(IsImagePointerSize(pointer_size)); |
| 602 | SetNativePointer(DataOffset(pointer_size), data, pointer_size); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 603 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 604 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 605 | // Is this a CalleSaveMethod or ResolutionMethod and therefore doesn't adhere to normal |
| 606 | // conventions for a method of managed code. Returns false for Proxy methods. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 607 | ALWAYS_INLINE bool IsRuntimeMethod() const { |
Roland Levillain | fa854e4 | 2018-02-07 13:09:55 +0000 | [diff] [blame] | 608 | return dex_method_index_ == kRuntimeMethodDexMethodIndex; |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 609 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 610 | |
| 611 | // 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] | 612 | bool IsCalleeSaveMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 613 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 614 | bool IsResolutionMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 615 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 616 | bool IsImtUnimplementedMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | 2d2621a | 2014-10-23 16:48:06 -0700 | [diff] [blame] | 617 | |
Ian Rogers | c449aa8 | 2013-07-29 14:35:46 -0700 | [diff] [blame] | 618 | // Find the catch block for the given exception type and dex_pc. When a catch block is found, |
| 619 | // indicates whether the found catch block is responsible for clearing the exception or whether |
| 620 | // a move-exception instruction is present. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 621 | uint32_t FindCatchBlock(Handle<mirror::Class> exception_type, uint32_t dex_pc, |
| 622 | bool* has_no_move_exception) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 623 | REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 624 | |
Mathieu Chartier | da7c650 | 2015-07-23 16:01:26 -0700 | [diff] [blame] | 625 | // 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] | 626 | template<ReadBarrierOption kReadBarrierOption = kWithReadBarrier, typename RootVisitorType> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 627 | void VisitRoots(RootVisitorType& visitor, PointerSize pointer_size) NO_THREAD_SAFETY_ANALYSIS; |
Mathieu Chartier | c528dba | 2013-11-26 12:00:11 -0800 | [diff] [blame] | 628 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 629 | const DexFile* GetDexFile() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 630 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 631 | const char* GetDeclaringClassDescriptor() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 632 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 633 | ALWAYS_INLINE const char* GetShorty() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 634 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 635 | const char* GetShorty(uint32_t* out_length) REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 636 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 637 | const Signature GetSignature() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 638 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 639 | ALWAYS_INLINE const char* GetName() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 640 | |
Eric Holk | abdb459 | 2019-05-16 08:33:12 -0700 | [diff] [blame] | 641 | ALWAYS_INLINE std::string_view GetNameView() REQUIRES_SHARED(Locks::mutator_lock_); |
| 642 | |
Vladimir Marko | 18090d1 | 2018-06-01 16:53:12 +0100 | [diff] [blame] | 643 | ObjPtr<mirror::String> ResolveNameString() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | 6b14d55 | 2014-10-28 21:50:58 -0700 | [diff] [blame] | 644 | |
Andreas Gampe | 3f1dcd3 | 2018-12-28 09:39:56 -0800 | [diff] [blame] | 645 | const dex::CodeItem* GetCodeItem() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 646 | |
Vladimir Marko | 942fd31 | 2017-01-16 20:52:19 +0000 | [diff] [blame] | 647 | bool IsResolvedTypeIdx(dex::TypeIndex type_idx) REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 648 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 649 | int32_t GetLineNumFromDexPC(uint32_t dex_pc) REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 650 | |
Andreas Gampe | 3f1dcd3 | 2018-12-28 09:39:56 -0800 | [diff] [blame] | 651 | const dex::ProtoId& GetPrototype() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 652 | |
Andreas Gampe | 3f1dcd3 | 2018-12-28 09:39:56 -0800 | [diff] [blame] | 653 | const dex::TypeList* GetParameterTypeList() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 654 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 655 | const char* GetDeclaringClassSourceFile() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 656 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 657 | uint16_t GetClassDefIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 658 | |
Andreas Gampe | 3f1dcd3 | 2018-12-28 09:39:56 -0800 | [diff] [blame] | 659 | const dex::ClassDef& GetClassDef() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 660 | |
Orion Hodson | 58143d2 | 2018-02-20 08:44:20 +0000 | [diff] [blame] | 661 | ALWAYS_INLINE size_t GetNumberOfParameters() REQUIRES_SHARED(Locks::mutator_lock_); |
| 662 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 663 | const char* GetReturnTypeDescriptor() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 664 | |
Alex Light | d766158 | 2017-05-01 13:48:16 -0700 | [diff] [blame] | 665 | ALWAYS_INLINE Primitive::Type GetReturnTypePrimitive() REQUIRES_SHARED(Locks::mutator_lock_); |
| 666 | |
Andreas Gampe | a5b09a6 | 2016-11-17 15:21:22 -0800 | [diff] [blame] | 667 | const char* GetTypeDescriptorFromTypeIdx(dex::TypeIndex type_idx) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 668 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 669 | |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 670 | // Lookup return type. |
| 671 | ObjPtr<mirror::Class> LookupResolvedReturnType() REQUIRES_SHARED(Locks::mutator_lock_); |
| 672 | // Resolve return type. May cause thread suspension due to GetClassFromTypeIdx |
| 673 | // calling ResolveType this caused a large number of bugs at call sites. |
| 674 | ObjPtr<mirror::Class> ResolveReturnType() REQUIRES_SHARED(Locks::mutator_lock_); |
Ian Rogers | ded66a0 | 2014-10-28 18:12:55 -0700 | [diff] [blame] | 675 | |
Vladimir Marko | c524e9e | 2019-03-26 10:54:50 +0000 | [diff] [blame] | 676 | ObjPtr<mirror::ClassLoader> GetClassLoader() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 677 | |
Mathieu Chartier | 137cdfa | 2017-01-26 14:03:11 -0800 | [diff] [blame] | 678 | template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier> |
Vladimir Marko | c524e9e | 2019-03-26 10:54:50 +0000 | [diff] [blame] | 679 | ObjPtr<mirror::DexCache> GetDexCache() REQUIRES_SHARED(Locks::mutator_lock_); |
| 680 | ObjPtr<mirror::DexCache> GetObsoleteDexCache() REQUIRES_SHARED(Locks::mutator_lock_); |
Mingyao Yang | 98d1cc8 | 2014-05-15 17:02:16 -0700 | [diff] [blame] | 681 | |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 682 | ALWAYS_INLINE ArtMethod* GetInterfaceMethodForProxyUnchecked(PointerSize pointer_size) |
| 683 | REQUIRES_SHARED(Locks::mutator_lock_); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 684 | ALWAYS_INLINE ArtMethod* GetInterfaceMethodIfProxy(PointerSize pointer_size) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 685 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 686 | |
Alex Light | 4ba388a | 2017-01-27 10:26:49 -0800 | [diff] [blame] | 687 | ArtMethod* GetNonObsoleteMethod() REQUIRES_SHARED(Locks::mutator_lock_); |
| 688 | |
Mathieu Chartier | fc58af4 | 2015-04-16 18:00:39 -0700 | [diff] [blame] | 689 | // May cause thread suspension due to class resolution. |
| 690 | bool EqualParameters(Handle<mirror::ObjectArray<mirror::Class>> params) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 691 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | fc58af4 | 2015-04-16 18:00:39 -0700 | [diff] [blame] | 692 | |
Vladimir Marko | 1463285 | 2015-08-17 12:07:23 +0100 | [diff] [blame] | 693 | // Size of an instance of this native class. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 694 | static size_t Size(PointerSize pointer_size) { |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 695 | return PtrSizedFieldsOffset(pointer_size) + |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 696 | (sizeof(PtrSizedFields) / sizeof(void*)) * static_cast<size_t>(pointer_size); |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 697 | } |
| 698 | |
Vladimir Marko | 1463285 | 2015-08-17 12:07:23 +0100 | [diff] [blame] | 699 | // Alignment of an instance of this native class. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 700 | static size_t Alignment(PointerSize pointer_size) { |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 701 | // 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] | 702 | // alignof(ArtMethod) if cross-compiling with pointer_size != sizeof(void*). |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 703 | return static_cast<size_t>(pointer_size); |
Vladimir Marko | cf36d49 | 2015-08-12 19:27:26 +0100 | [diff] [blame] | 704 | } |
| 705 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 706 | void CopyFrom(ArtMethod* src, PointerSize image_pointer_size) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 707 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 708 | |
Mathieu Chartier | 7f8678e | 2019-08-30 16:22:28 -0700 | [diff] [blame] | 709 | ALWAYS_INLINE void SetCounter(uint16_t hotness_count) REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 710 | |
David Srbecky | e36e7f2 | 2018-11-14 14:21:23 +0000 | [diff] [blame] | 711 | ALWAYS_INLINE uint16_t GetCounter() REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 712 | |
Mathieu Chartier | 7f8678e | 2019-08-30 16:22:28 -0700 | [diff] [blame] | 713 | ALWAYS_INLINE static constexpr uint16_t MaxCounter() { |
| 714 | return std::numeric_limits<decltype(hotness_count_)>::max(); |
| 715 | } |
| 716 | |
David Srbecky | e36e7f2 | 2018-11-14 14:21:23 +0000 | [diff] [blame] | 717 | ALWAYS_INLINE uint32_t GetImtIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
Bill Buzbee | 1d011d9 | 2016-04-04 16:59:29 +0000 | [diff] [blame] | 718 | |
David Srbecky | e36e7f2 | 2018-11-14 14:21:23 +0000 | [diff] [blame] | 719 | void CalculateAndSetImtIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
Bill Buzbee | 1d011d9 | 2016-04-04 16:59:29 +0000 | [diff] [blame] | 720 | |
David Srbecky | 56de89a | 2018-10-01 15:32:20 +0100 | [diff] [blame] | 721 | static constexpr MemberOffset HotnessCountOffset() { |
Nicolas Geoffray | 8d72832 | 2018-01-18 22:44:32 +0000 | [diff] [blame] | 722 | return MemberOffset(OFFSETOF_MEMBER(ArtMethod, hotness_count_)); |
| 723 | } |
| 724 | |
Mathieu Chartier | 210531f | 2018-01-12 10:15:51 -0800 | [diff] [blame] | 725 | ArrayRef<const uint8_t> GetQuickenedInfo() REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | b041a40 | 2017-11-13 15:16:22 +0000 | [diff] [blame] | 726 | uint16_t GetIndexFromQuickening(uint32_t dex_pc) REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 6bc4374 | 2015-10-12 18:11:10 +0100 | [diff] [blame] | 727 | |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 728 | // Returns the method header for the compiled code containing 'pc'. Note that runtime |
| 729 | // methods will return null for this method, as they are not oat based. |
| 730 | const OatQuickMethodHeader* GetOatQuickMethodHeader(uintptr_t pc) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 731 | REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 732 | |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 733 | // Get compiled code for the method, return null if no code exists. |
| 734 | const void* GetOatMethodQuickCode(PointerSize pointer_size) |
| 735 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 736 | |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 737 | // Returns whether the method has any compiled code, JIT or AOT. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 738 | bool HasAnyCompiledCode() REQUIRES_SHARED(Locks::mutator_lock_); |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 739 | |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 740 | // Returns a human-readable signature for 'm'. Something like "a.b.C.m" or |
| 741 | // "a.b.C.m(II)V" (depending on the value of 'with_signature'). |
| 742 | static std::string PrettyMethod(ArtMethod* m, bool with_signature = true) |
| 743 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 744 | std::string PrettyMethod(bool with_signature = true) |
| 745 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 746 | // Returns the JNI native function name for the non-overloaded method 'm'. |
| 747 | std::string JniShortName() |
| 748 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 749 | // Returns the JNI native function name for the overloaded method 'm'. |
| 750 | std::string JniLongName() |
| 751 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 752 | |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 753 | // Update entry points by passing them through the visitor. |
Vladimir Marko | c945e0d | 2018-07-18 17:26:45 +0100 | [diff] [blame] | 754 | template <typename Visitor> |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 755 | ALWAYS_INLINE void UpdateEntrypoints(const Visitor& visitor, PointerSize pointer_size) |
| 756 | REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | fbc3108 | 2016-01-24 11:59:56 -0800 | [diff] [blame] | 757 | |
David Sehr | a49e053 | 2017-08-25 08:05:29 -0700 | [diff] [blame] | 758 | // Visit the individual members of an ArtMethod. Used by imgdiag. |
| 759 | // As imgdiag does not support mixing instruction sets or pointer sizes (e.g., using imgdiag32 |
| 760 | // to inspect 64-bit images, etc.), we can go beneath the accessors directly to the class members. |
| 761 | template <typename VisitorFunc> |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 762 | void VisitMembers(VisitorFunc& visitor) REQUIRES_SHARED(Locks::mutator_lock_) { |
David Sehr | a49e053 | 2017-08-25 08:05:29 -0700 | [diff] [blame] | 763 | DCHECK(IsImagePointerSize(kRuntimePointerSize)); |
| 764 | visitor(this, &declaring_class_, "declaring_class_"); |
| 765 | visitor(this, &access_flags_, "access_flags_"); |
| 766 | visitor(this, &dex_code_item_offset_, "dex_code_item_offset_"); |
| 767 | visitor(this, &dex_method_index_, "dex_method_index_"); |
| 768 | visitor(this, &method_index_, "method_index_"); |
| 769 | visitor(this, &hotness_count_, "hotness_count_"); |
| 770 | visitor(this, &ptr_sized_fields_.data_, "ptr_sized_fields_.data_"); |
| 771 | visitor(this, |
| 772 | &ptr_sized_fields_.entry_point_from_quick_compiled_code_, |
| 773 | "ptr_sized_fields_.entry_point_from_quick_compiled_code_"); |
| 774 | } |
| 775 | |
Mathieu Chartier | 808c7a5 | 2017-12-15 11:19:33 -0800 | [diff] [blame] | 776 | // Returns the dex instructions of the code item for the art method. Returns an empty array for |
| 777 | // the null code item case. |
| 778 | ALWAYS_INLINE CodeItemInstructionAccessor DexInstructions() |
Mathieu Chartier | 69147f1 | 2017-11-06 20:02:24 -0800 | [diff] [blame] | 779 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 780 | |
David Sehr | 0225f8e | 2018-01-31 08:52:24 +0000 | [diff] [blame] | 781 | // Returns the dex code item data section of the DexFile for the art method. |
| 782 | ALWAYS_INLINE CodeItemDataAccessor DexInstructionData() |
| 783 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 784 | |
| 785 | // Returns the dex code item debug info section of the DexFile for the art method. |
| 786 | ALWAYS_INLINE CodeItemDebugInfoAccessor DexInstructionDebugInfo() |
| 787 | REQUIRES_SHARED(Locks::mutator_lock_); |
| 788 | |
Vladimir Marko | 4df2d80 | 2018-09-27 16:42:44 +0000 | [diff] [blame] | 789 | GcRoot<mirror::Class>& DeclaringClassRoot() { |
| 790 | return declaring_class_; |
| 791 | } |
| 792 | |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 793 | protected: |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 794 | // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 795 | // The class we are a part of. |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 796 | GcRoot<mirror::Class> declaring_class_; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 797 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 798 | // Access flags; low 16 bits are defined by spec. |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 799 | // Getting and setting this flag needs to be atomic when concurrency is |
| 800 | // possible, e.g. after this method's class is linked. Such as when setting |
| 801 | // verifier flags and single-implementation flag. |
| 802 | std::atomic<std::uint32_t> access_flags_; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 803 | |
| 804 | /* Dex file fields. The defining dex file is available via declaring_class_->dex_cache_ */ |
| 805 | |
| 806 | // Offset to the CodeItem. |
| 807 | uint32_t dex_code_item_offset_; |
| 808 | |
| 809 | // Index into method_ids of the dex file associated with this method. |
| 810 | uint32_t dex_method_index_; |
| 811 | |
| 812 | /* End of dex file fields. */ |
| 813 | |
| 814 | // Entry within a dispatch table for this method. For static/direct methods the index is into |
| 815 | // the declaringClass.directMethods, for virtual methods the vtable and for interface methods the |
| 816 | // ifTable. |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 817 | uint16_t method_index_; |
| 818 | |
David Srbecky | e36e7f2 | 2018-11-14 14:21:23 +0000 | [diff] [blame] | 819 | union { |
| 820 | // Non-abstract methods: The hotness we measure for this method. Not atomic, |
| 821 | // as we allow missing increments: if the method is hot, we will see it eventually. |
| 822 | uint16_t hotness_count_; |
| 823 | // Abstract methods: IMT index (bitwise negated) or zero if it was not cached. |
| 824 | // The negation is needed to distinguish zero index and missing cached entry. |
| 825 | uint16_t imt_index_; |
| 826 | }; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 827 | |
Mathieu Chartier | eace458 | 2014-11-24 18:29:54 -0800 | [diff] [blame] | 828 | // Fake padding field gets inserted here. |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 829 | |
| 830 | // Must be the last fields in the method. |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 831 | struct PtrSizedFields { |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 832 | // Depending on the method type, the data is |
| 833 | // - native method: pointer to the JNI function registered to this method |
| 834 | // or a function to resolve the JNI function, |
Vladimir Marko | 86c8752 | 2020-05-11 16:55:55 +0100 | [diff] [blame] | 835 | // - resolution method: pointer to a function to resolve the method and |
| 836 | // the JNI function for @CriticalNative. |
Vladimir Marko | d1ee20f | 2017-08-17 09:21:16 +0000 | [diff] [blame] | 837 | // - conflict method: ImtConflictTable, |
| 838 | // - abstract/interface method: the single-implementation if any, |
| 839 | // - proxy method: the original interface method or constructor, |
| 840 | // - other methods: the profiling data. |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 841 | void* data_; |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 842 | |
| 843 | // 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] | 844 | // the interpreter. |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 845 | void* entry_point_from_quick_compiled_code_; |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 846 | } ptr_sized_fields_; |
| 847 | |
Mathieu Chartier | 02e2511 | 2013-08-14 16:14:24 -0700 | [diff] [blame] | 848 | private: |
Alex Light | f2f1c9d | 2017-03-15 15:35:46 +0000 | [diff] [blame] | 849 | uint16_t FindObsoleteDexClassDefIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
| 850 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 851 | static constexpr size_t PtrSizedFieldsOffset(PointerSize pointer_size) { |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 852 | // 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] | 853 | return RoundUp(offsetof(ArtMethod, hotness_count_) + sizeof(hotness_count_), |
| 854 | static_cast<size_t>(pointer_size)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 855 | } |
| 856 | |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 857 | // Compare given pointer size to the image pointer size. |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 858 | static bool IsImagePointerSize(PointerSize pointer_size); |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 859 | |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 860 | dex::TypeIndex GetReturnTypeIndex() REQUIRES_SHARED(Locks::mutator_lock_); |
| 861 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 862 | template<typename T> |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 863 | ALWAYS_INLINE T GetNativePointer(MemberOffset offset, PointerSize pointer_size) const { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 864 | 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] | 865 | const auto addr = reinterpret_cast<uintptr_t>(this) + offset.Uint32Value(); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 866 | if (pointer_size == PointerSize::k32) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 867 | return reinterpret_cast<T>(*reinterpret_cast<const uint32_t*>(addr)); |
| 868 | } else { |
| 869 | auto v = *reinterpret_cast<const uint64_t*>(addr); |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 870 | return reinterpret_cast<T>(dchecked_integral_cast<uintptr_t>(v)); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 871 | } |
| 872 | } |
| 873 | |
| 874 | template<typename T> |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 875 | ALWAYS_INLINE void SetNativePointer(MemberOffset offset, T new_value, PointerSize pointer_size) |
| 876 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 877 | 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] | 878 | const auto addr = reinterpret_cast<uintptr_t>(this) + offset.Uint32Value(); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 879 | if (pointer_size == PointerSize::k32) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 880 | uintptr_t ptr = reinterpret_cast<uintptr_t>(new_value); |
Vladimir Marko | 05792b9 | 2015-08-03 11:56:49 +0100 | [diff] [blame] | 881 | *reinterpret_cast<uint32_t*>(addr) = dchecked_integral_cast<uint32_t>(ptr); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 882 | } else { |
| 883 | *reinterpret_cast<uint64_t*>(addr) = reinterpret_cast<uintptr_t>(new_value); |
| 884 | } |
Mathieu Chartier | 2d72101 | 2014-11-10 11:08:06 -0800 | [diff] [blame] | 885 | } |
| 886 | |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 887 | static inline bool IsValidIntrinsicUpdate(uint32_t modifier) { |
| 888 | return (((modifier & kAccIntrinsic) == kAccIntrinsic) && |
| 889 | (((modifier & ~(kAccIntrinsic | kAccIntrinsicBits)) == 0))); |
| 890 | } |
| 891 | |
| 892 | static inline bool OverlapsIntrinsicBits(uint32_t modifier) { |
| 893 | return (modifier & kAccIntrinsicBits) != 0; |
| 894 | } |
| 895 | |
| 896 | // This setter guarantees atomicity. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 897 | void AddAccessFlags(uint32_t flag) REQUIRES_SHARED(Locks::mutator_lock_) { |
Hans Boehm | 65a01a7 | 2019-12-30 14:07:03 -0800 | [diff] [blame] | 898 | DCHECK(!IsIntrinsic() || !OverlapsIntrinsicBits(flag) || IsValidIntrinsicUpdate(flag)); |
| 899 | // None of the readers rely ordering. |
| 900 | access_flags_.fetch_or(flag, std::memory_order_relaxed); |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 901 | } |
| 902 | |
| 903 | // This setter guarantees atomicity. |
Nicolas Geoffray | f05f04b | 2019-10-31 11:50:41 +0000 | [diff] [blame] | 904 | void ClearAccessFlags(uint32_t flag) REQUIRES_SHARED(Locks::mutator_lock_) { |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 905 | DCHECK(!IsIntrinsic() || !OverlapsIntrinsicBits(flag) || IsValidIntrinsicUpdate(flag)); |
Hans Boehm | 65a01a7 | 2019-12-30 14:07:03 -0800 | [diff] [blame] | 906 | access_flags_.fetch_and(~flag, std::memory_order_relaxed); |
Orion Hodson | cfcc9cf | 2017-09-29 15:07:27 +0100 | [diff] [blame] | 907 | } |
| 908 | |
Eric Holk | abdb459 | 2019-05-16 08:33:12 -0700 | [diff] [blame] | 909 | // Used by GetName and GetNameView to share common code. |
| 910 | const char* GetRuntimeMethodName() REQUIRES_SHARED(Locks::mutator_lock_); |
| 911 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 912 | 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] | 913 | }; |
| 914 | |
Alex Light | d78ddec | 2017-04-18 15:20:38 -0700 | [diff] [blame] | 915 | class MethodCallback { |
| 916 | public: |
| 917 | virtual ~MethodCallback() {} |
| 918 | |
| 919 | virtual void RegisterNativeMethod(ArtMethod* method, |
| 920 | const void* original_implementation, |
| 921 | /*out*/void** new_implementation) |
| 922 | REQUIRES_SHARED(Locks::mutator_lock_) = 0; |
| 923 | }; |
| 924 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 925 | } // namespace art |
| 926 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 927 | #endif // ART_RUNTIME_ART_METHOD_H_ |