Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 17 | #include "art_method.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 18 | |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 19 | #include <cstddef> |
| 20 | |
Andreas Gampe | 46ee31b | 2016-12-14 10:11:49 -0800 | [diff] [blame] | 21 | #include "android-base/stringprintf.h" |
| 22 | |
Ian Rogers | e63db27 | 2014-07-15 15:36:11 -0700 | [diff] [blame] | 23 | #include "arch/context.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 24 | #include "art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 25 | #include "base/stringpiece.h" |
Hiroshi Yamauchi | 0037082 | 2015-08-18 14:47:25 -0700 | [diff] [blame] | 26 | #include "class_linker-inl.h" |
Andreas Gampe | 2a5c468 | 2015-08-14 08:22:54 -0700 | [diff] [blame] | 27 | #include "debugger.h" |
David Sehr | b2ec9f5 | 2018-02-21 13:20:31 -0800 | [diff] [blame] | 28 | #include "dex/descriptors_names.h" |
David Sehr | 9e734c7 | 2018-01-04 17:56:19 -0800 | [diff] [blame] | 29 | #include "dex/dex_file-inl.h" |
| 30 | #include "dex/dex_file_exception_helpers.h" |
| 31 | #include "dex/dex_instruction.h" |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 32 | #include "entrypoints/runtime_asm_entrypoints.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 33 | #include "gc/accounting/card_table-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 34 | #include "interpreter/interpreter.h" |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 35 | #include "jit/jit.h" |
| 36 | #include "jit/jit_code_cache.h" |
Nicolas Geoffray | 5550ca8 | 2015-08-21 18:38:30 +0100 | [diff] [blame] | 37 | #include "jit/profiling_info.h" |
Vladimir Marko | a3ad0cd | 2018-05-04 10:06:38 +0100 | [diff] [blame] | 38 | #include "jni/jni_internal.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 39 | #include "mirror/class-inl.h" |
Alex Light | a01de59 | 2016-11-15 10:43:06 -0800 | [diff] [blame] | 40 | #include "mirror/class_ext.h" |
Neil Fuller | 0e84439 | 2016-09-08 13:43:31 +0100 | [diff] [blame] | 41 | #include "mirror/executable.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 42 | #include "mirror/object-inl.h" |
Andreas Gampe | 8cf9cb3 | 2017-07-19 09:28:38 -0700 | [diff] [blame] | 43 | #include "mirror/object_array-inl.h" |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 44 | #include "mirror/string.h" |
Nicolas Geoffray | 9523a3e | 2015-07-17 11:51:28 +0000 | [diff] [blame] | 45 | #include "oat_file-inl.h" |
Nicolas Geoffray | b041a40 | 2017-11-13 15:16:22 +0000 | [diff] [blame] | 46 | #include "quicken_info.h" |
Alex Light | d78ddec | 2017-04-18 15:20:38 -0700 | [diff] [blame] | 47 | #include "runtime_callbacks.h" |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 48 | #include "scoped_thread_state_change-inl.h" |
Nicolas Geoffray | b02ba93 | 2017-07-13 15:53:54 +0100 | [diff] [blame] | 49 | #include "vdex_file.h" |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 50 | #include "well_known_classes.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 51 | |
| 52 | namespace art { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 53 | |
Andreas Gampe | 46ee31b | 2016-12-14 10:11:49 -0800 | [diff] [blame] | 54 | using android::base::StringPrintf; |
| 55 | |
Ian Rogers | 0177e53 | 2014-02-11 16:30:46 -0800 | [diff] [blame] | 56 | extern "C" void art_quick_invoke_stub(ArtMethod*, uint32_t*, uint32_t, Thread*, JValue*, |
| 57 | const char*); |
Ian Rogers | 936b37f | 2014-02-14 00:52:24 -0800 | [diff] [blame] | 58 | extern "C" void art_quick_invoke_static_stub(ArtMethod*, uint32_t*, uint32_t, Thread*, JValue*, |
| 59 | const char*); |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 60 | |
Andreas Gampe | aea05c1 | 2017-05-19 08:45:02 -0700 | [diff] [blame] | 61 | DEFINE_RUNTIME_DEBUG_FLAG(ArtMethod, kCheckDeclaringClassState); |
| 62 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 63 | // Enforce that we he have the right index for runtime methods. |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 64 | static_assert(ArtMethod::kRuntimeMethodDexMethodIndex == dex::kDexNoIndex, |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 65 | "Wrong runtime-method dex method index"); |
| 66 | |
Alex Light | 97e7803 | 2017-06-27 17:51:55 -0700 | [diff] [blame] | 67 | ArtMethod* ArtMethod::GetCanonicalMethod(PointerSize pointer_size) { |
| 68 | if (LIKELY(!IsDefault())) { |
| 69 | return this; |
| 70 | } else { |
| 71 | mirror::Class* declaring_class = GetDeclaringClass(); |
Vladimir Marko | ba11882 | 2017-06-12 15:41:56 +0100 | [diff] [blame] | 72 | DCHECK(declaring_class->IsInterface()); |
| 73 | ArtMethod* ret = declaring_class->FindInterfaceMethod(declaring_class->GetDexCache(), |
| 74 | GetDexMethodIndex(), |
| 75 | pointer_size); |
Alex Light | 97e7803 | 2017-06-27 17:51:55 -0700 | [diff] [blame] | 76 | DCHECK(ret != nullptr); |
| 77 | return ret; |
| 78 | } |
| 79 | } |
| 80 | |
Alex Light | 4ba388a | 2017-01-27 10:26:49 -0800 | [diff] [blame] | 81 | ArtMethod* ArtMethod::GetNonObsoleteMethod() { |
| 82 | DCHECK_EQ(kRuntimePointerSize, Runtime::Current()->GetClassLinker()->GetImagePointerSize()); |
| 83 | if (LIKELY(!IsObsolete())) { |
| 84 | return this; |
| 85 | } else if (IsDirect()) { |
| 86 | return &GetDeclaringClass()->GetDirectMethodsSlice(kRuntimePointerSize)[GetMethodIndex()]; |
| 87 | } else { |
| 88 | return GetDeclaringClass()->GetVTableEntry(GetMethodIndex(), kRuntimePointerSize); |
| 89 | } |
| 90 | } |
| 91 | |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 92 | template <ReadBarrierOption kReadBarrierOption> |
Mingyao Yang | e8fcd01 | 2017-01-20 10:43:30 -0800 | [diff] [blame] | 93 | ArtMethod* ArtMethod::GetSingleImplementation(PointerSize pointer_size) { |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 94 | if (!IsAbstract<kReadBarrierOption>()) { |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 95 | // A non-abstract's single implementation is itself. |
| 96 | return this; |
| 97 | } |
Mingyao Yang | e8fcd01 | 2017-01-20 10:43:30 -0800 | [diff] [blame] | 98 | return reinterpret_cast<ArtMethod*>(GetDataPtrSize(pointer_size)); |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 99 | } |
Alexey Grebenkin | be4c2bd | 2018-02-01 19:09:59 +0300 | [diff] [blame] | 100 | template ArtMethod* ArtMethod::GetSingleImplementation<ReadBarrierOption::kWithReadBarrier>( |
| 101 | PointerSize pointer_size); |
| 102 | template ArtMethod* ArtMethod::GetSingleImplementation<ReadBarrierOption::kWithoutReadBarrier>( |
| 103 | PointerSize pointer_size); |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 104 | |
Mathieu Chartier | 2b7c4d1 | 2014-05-19 10:52:16 -0700 | [diff] [blame] | 105 | ArtMethod* ArtMethod::FromReflectedMethod(const ScopedObjectAccessAlreadyRunnable& soa, |
| 106 | jobject jlr_method) { |
Mathieu Chartier | 0795f23 | 2016-09-27 18:43:30 -0700 | [diff] [blame] | 107 | ObjPtr<mirror::Executable> executable = soa.Decode<mirror::Executable>(jlr_method); |
Neil Fuller | 0e84439 | 2016-09-08 13:43:31 +0100 | [diff] [blame] | 108 | DCHECK(executable != nullptr); |
| 109 | return executable->GetArtMethod(); |
Ian Rogers | 62f0512 | 2014-03-21 11:21:29 -0700 | [diff] [blame] | 110 | } |
| 111 | |
Alex Light | a01de59 | 2016-11-15 10:43:06 -0800 | [diff] [blame] | 112 | mirror::DexCache* ArtMethod::GetObsoleteDexCache() { |
| 113 | DCHECK(!Runtime::Current()->IsAotCompiler()) << PrettyMethod(); |
| 114 | DCHECK(IsObsolete()); |
| 115 | ObjPtr<mirror::ClassExt> ext(GetDeclaringClass()->GetExtData()); |
| 116 | CHECK(!ext.IsNull()); |
| 117 | ObjPtr<mirror::PointerArray> obsolete_methods(ext->GetObsoleteMethods()); |
| 118 | CHECK(!obsolete_methods.IsNull()); |
| 119 | DCHECK(ext->GetObsoleteDexCaches() != nullptr); |
| 120 | int32_t len = obsolete_methods->GetLength(); |
| 121 | DCHECK_EQ(len, ext->GetObsoleteDexCaches()->GetLength()); |
Alex Light | 0b77257 | 2016-12-02 17:27:31 -0800 | [diff] [blame] | 122 | // Using kRuntimePointerSize (instead of using the image's pointer size) is fine since images |
| 123 | // should never have obsolete methods in them so they should always be the same. |
Alex Light | a01de59 | 2016-11-15 10:43:06 -0800 | [diff] [blame] | 124 | PointerSize pointer_size = kRuntimePointerSize; |
| 125 | DCHECK_EQ(kRuntimePointerSize, Runtime::Current()->GetClassLinker()->GetImagePointerSize()); |
| 126 | for (int32_t i = 0; i < len; i++) { |
| 127 | if (this == obsolete_methods->GetElementPtrSize<ArtMethod*>(i, pointer_size)) { |
| 128 | return ext->GetObsoleteDexCaches()->Get(i); |
| 129 | } |
| 130 | } |
| 131 | LOG(FATAL) << "This method does not appear in the obsolete map of its class!"; |
| 132 | UNREACHABLE(); |
| 133 | } |
| 134 | |
Alex Light | f2f1c9d | 2017-03-15 15:35:46 +0000 | [diff] [blame] | 135 | uint16_t ArtMethod::FindObsoleteDexClassDefIndex() { |
| 136 | DCHECK(!Runtime::Current()->IsAotCompiler()) << PrettyMethod(); |
| 137 | DCHECK(IsObsolete()); |
| 138 | const DexFile* dex_file = GetDexFile(); |
| 139 | const dex::TypeIndex declaring_class_type = dex_file->GetMethodId(GetDexMethodIndex()).class_idx_; |
| 140 | const DexFile::ClassDef* class_def = dex_file->FindClassDef(declaring_class_type); |
| 141 | CHECK(class_def != nullptr); |
| 142 | return dex_file->GetIndexForClassDef(*class_def); |
| 143 | } |
| 144 | |
Vladimir Marko | 28e012a | 2017-12-07 11:22:59 +0000 | [diff] [blame] | 145 | ObjPtr<mirror::String> ArtMethod::GetNameAsString(Thread* self) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 146 | CHECK(!IsProxyMethod()); |
Ian Rogers | 6b14d55 | 2014-10-28 21:50:58 -0700 | [diff] [blame] | 147 | StackHandleScope<1> hs(self); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 148 | Handle<mirror::DexCache> dex_cache(hs.NewHandle(GetDexCache())); |
| 149 | auto* dex_file = dex_cache->GetDexFile(); |
| 150 | uint32_t dex_method_idx = GetDexMethodIndex(); |
| 151 | const DexFile::MethodId& method_id = dex_file->GetMethodId(dex_method_idx); |
Vladimir Marko | a64b52d | 2017-12-08 16:27:49 +0000 | [diff] [blame] | 152 | return Runtime::Current()->GetClassLinker()->ResolveString(method_id.name_idx_, dex_cache); |
Ian Rogers | 6b14d55 | 2014-10-28 21:50:58 -0700 | [diff] [blame] | 153 | } |
| 154 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 155 | void ArtMethod::ThrowInvocationTimeError() { |
| 156 | DCHECK(!IsInvokable()); |
| 157 | // NOTE: IsDefaultConflicting must be first since the actual method might or might not be abstract |
| 158 | // due to the way we select it. |
| 159 | if (IsDefaultConflicting()) { |
| 160 | ThrowIncompatibleClassChangeErrorForMethodConflict(this); |
| 161 | } else { |
| 162 | DCHECK(IsAbstract()); |
| 163 | ThrowAbstractMethodError(this); |
| 164 | } |
| 165 | } |
| 166 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 167 | InvokeType ArtMethod::GetInvokeType() { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 168 | // TODO: kSuper? |
Nicolas Geoffray | 3aaf964 | 2016-06-07 14:14:37 +0000 | [diff] [blame] | 169 | if (IsStatic()) { |
Nicolas Geoffray | 12abcbd | 2016-06-06 15:51:58 +0000 | [diff] [blame] | 170 | return kStatic; |
Nicolas Geoffray | 3aaf964 | 2016-06-07 14:14:37 +0000 | [diff] [blame] | 171 | } else if (GetDeclaringClass()->IsInterface()) { |
| 172 | return kInterface; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 173 | } else if (IsDirect()) { |
| 174 | return kDirect; |
Orion Hodson | 43f0cdb | 2017-10-10 14:47:32 +0100 | [diff] [blame] | 175 | } else if (IsPolymorphicSignature()) { |
| 176 | return kPolymorphic; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 177 | } else { |
| 178 | return kVirtual; |
| 179 | } |
| 180 | } |
| 181 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 182 | size_t ArtMethod::NumArgRegisters(const StringPiece& shorty) { |
Ian Rogers | 6b604a1 | 2014-09-25 15:35:37 -0700 | [diff] [blame] | 183 | CHECK_LE(1U, shorty.length()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 184 | uint32_t num_registers = 0; |
Ian Rogers | 6b604a1 | 2014-09-25 15:35:37 -0700 | [diff] [blame] | 185 | for (size_t i = 1; i < shorty.length(); ++i) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 186 | char ch = shorty[i]; |
| 187 | if (ch == 'D' || ch == 'J') { |
| 188 | num_registers += 2; |
| 189 | } else { |
| 190 | num_registers += 1; |
| 191 | } |
| 192 | } |
| 193 | return num_registers; |
| 194 | } |
| 195 | |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 196 | bool ArtMethod::HasSameNameAndSignature(ArtMethod* other) { |
Mathieu Chartier | 268764d | 2016-09-13 12:09:38 -0700 | [diff] [blame] | 197 | ScopedAssertNoThreadSuspension ants("HasSameNameAndSignature"); |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 198 | const DexFile* dex_file = GetDexFile(); |
| 199 | const DexFile::MethodId& mid = dex_file->GetMethodId(GetDexMethodIndex()); |
| 200 | if (GetDexCache() == other->GetDexCache()) { |
| 201 | const DexFile::MethodId& mid2 = dex_file->GetMethodId(other->GetDexMethodIndex()); |
Ian Rogers | f224751 | 2014-12-02 16:17:08 -0800 | [diff] [blame] | 202 | return mid.name_idx_ == mid2.name_idx_ && mid.proto_idx_ == mid2.proto_idx_; |
| 203 | } |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 204 | const DexFile* dex_file2 = other->GetDexFile(); |
| 205 | const DexFile::MethodId& mid2 = dex_file2->GetMethodId(other->GetDexMethodIndex()); |
Ian Rogers | f224751 | 2014-12-02 16:17:08 -0800 | [diff] [blame] | 206 | if (!DexFileStringEquals(dex_file, mid.name_idx_, dex_file2, mid2.name_idx_)) { |
| 207 | return false; // Name mismatch. |
| 208 | } |
| 209 | return dex_file->GetMethodSignature(mid) == dex_file2->GetMethodSignature(mid2); |
| 210 | } |
| 211 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 212 | ArtMethod* ArtMethod::FindOverriddenMethod(PointerSize pointer_size) { |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 213 | if (IsStatic()) { |
Ian Rogers | f224751 | 2014-12-02 16:17:08 -0800 | [diff] [blame] | 214 | return nullptr; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 215 | } |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 216 | mirror::Class* declaring_class = GetDeclaringClass(); |
| 217 | mirror::Class* super_class = declaring_class->GetSuperClass(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 218 | uint16_t method_index = GetMethodIndex(); |
Ian Rogers | f224751 | 2014-12-02 16:17:08 -0800 | [diff] [blame] | 219 | ArtMethod* result = nullptr; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 220 | // Did this method override a super class method? If so load the result from the super class' |
| 221 | // vtable |
Mingyao Yang | 2cdbad7 | 2014-07-16 10:44:41 -0700 | [diff] [blame] | 222 | if (super_class->HasVTable() && method_index < super_class->GetVTableLength()) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 223 | result = super_class->GetVTableEntry(method_index, pointer_size); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 224 | } else { |
| 225 | // Method didn't override superclass method so search interfaces |
| 226 | if (IsProxyMethod()) { |
Vladimir Marko | 07bfbac | 2017-07-06 14:55:02 +0100 | [diff] [blame] | 227 | result = GetInterfaceMethodIfProxy(pointer_size); |
| 228 | DCHECK(result != nullptr); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 229 | } else { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 230 | mirror::IfTable* iftable = GetDeclaringClass()->GetIfTable(); |
Ian Rogers | f224751 | 2014-12-02 16:17:08 -0800 | [diff] [blame] | 231 | for (size_t i = 0; i < iftable->Count() && result == nullptr; i++) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 232 | mirror::Class* interface = iftable->GetInterface(i); |
Alex Light | 51a64d5 | 2015-12-17 13:55:59 -0800 | [diff] [blame] | 233 | for (ArtMethod& interface_method : interface->GetVirtualMethods(pointer_size)) { |
| 234 | if (HasSameNameAndSignature(interface_method.GetInterfaceMethodIfProxy(pointer_size))) { |
| 235 | result = &interface_method; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 236 | break; |
| 237 | } |
| 238 | } |
| 239 | } |
| 240 | } |
| 241 | } |
Alex Light | 6c8467f | 2015-11-20 15:03:26 -0800 | [diff] [blame] | 242 | DCHECK(result == nullptr || |
Alex Light | 51a64d5 | 2015-12-17 13:55:59 -0800 | [diff] [blame] | 243 | GetInterfaceMethodIfProxy(pointer_size)->HasSameNameAndSignature( |
| 244 | result->GetInterfaceMethodIfProxy(pointer_size))); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 245 | return result; |
| 246 | } |
| 247 | |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 248 | uint32_t ArtMethod::FindDexMethodIndexInOtherDexFile(const DexFile& other_dexfile, |
| 249 | uint32_t name_and_signature_idx) { |
| 250 | const DexFile* dexfile = GetDexFile(); |
| 251 | const uint32_t dex_method_idx = GetDexMethodIndex(); |
| 252 | const DexFile::MethodId& mid = dexfile->GetMethodId(dex_method_idx); |
| 253 | const DexFile::MethodId& name_and_sig_mid = other_dexfile.GetMethodId(name_and_signature_idx); |
| 254 | DCHECK_STREQ(dexfile->GetMethodName(mid), other_dexfile.GetMethodName(name_and_sig_mid)); |
| 255 | DCHECK_EQ(dexfile->GetMethodSignature(mid), other_dexfile.GetMethodSignature(name_and_sig_mid)); |
| 256 | if (dexfile == &other_dexfile) { |
| 257 | return dex_method_idx; |
| 258 | } |
| 259 | const char* mid_declaring_class_descriptor = dexfile->StringByTypeIdx(mid.class_idx_); |
Mathieu Chartier | 9507fa2 | 2015-10-29 15:08:57 -0700 | [diff] [blame] | 260 | const DexFile::TypeId* other_type_id = other_dexfile.FindTypeId(mid_declaring_class_descriptor); |
| 261 | if (other_type_id != nullptr) { |
| 262 | const DexFile::MethodId* other_mid = other_dexfile.FindMethodId( |
| 263 | *other_type_id, other_dexfile.GetStringId(name_and_sig_mid.name_idx_), |
| 264 | other_dexfile.GetProtoId(name_and_sig_mid.proto_idx_)); |
| 265 | if (other_mid != nullptr) { |
| 266 | return other_dexfile.GetIndexForMethodId(*other_mid); |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 267 | } |
| 268 | } |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 269 | return dex::kDexNoIndex; |
Ian Rogers | e0a02da | 2014-12-02 14:10:53 -0800 | [diff] [blame] | 270 | } |
| 271 | |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 272 | uint32_t ArtMethod::FindCatchBlock(Handle<mirror::Class> exception_type, |
Mathieu Chartier | bfd9a43 | 2014-05-21 17:43:44 -0700 | [diff] [blame] | 273 | uint32_t dex_pc, bool* has_no_move_exception) { |
Jeff Hao | aa96191 | 2014-04-22 13:54:32 -0700 | [diff] [blame] | 274 | // Set aside the exception while we resolve its type. |
| 275 | Thread* self = Thread::Current(); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 276 | StackHandleScope<1> hs(self); |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 277 | Handle<mirror::Throwable> exception(hs.NewHandle(self->GetException())); |
Jeff Hao | aa96191 | 2014-04-22 13:54:32 -0700 | [diff] [blame] | 278 | self->ClearException(); |
Ian Rogers | 9e8f45e | 2013-07-31 10:58:53 -0700 | [diff] [blame] | 279 | // Default to handler not found. |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 280 | uint32_t found_dex_pc = dex::kDexNoIndex; |
Ian Rogers | 9e8f45e | 2013-07-31 10:58:53 -0700 | [diff] [blame] | 281 | // Iterate over the catch handlers associated with dex_pc. |
David Sehr | 0225f8e | 2018-01-31 08:52:24 +0000 | [diff] [blame] | 282 | CodeItemDataAccessor accessor(DexInstructionData()); |
Mathieu Chartier | dc578c7 | 2017-12-27 11:51:45 -0800 | [diff] [blame] | 283 | for (CatchHandlerIterator it(accessor, dex_pc); it.HasNext(); it.Next()) { |
Andreas Gampe | a5b09a6 | 2016-11-17 15:21:22 -0800 | [diff] [blame] | 284 | dex::TypeIndex iter_type_idx = it.GetHandlerTypeIndex(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 285 | // Catch all case |
Andreas Gampe | a5b09a6 | 2016-11-17 15:21:22 -0800 | [diff] [blame] | 286 | if (!iter_type_idx.IsValid()) { |
Ian Rogers | 9e8f45e | 2013-07-31 10:58:53 -0700 | [diff] [blame] | 287 | found_dex_pc = it.GetHandlerAddress(); |
| 288 | break; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 289 | } |
| 290 | // Does this catch exception type apply? |
Vladimir Marko | b45528c | 2017-07-27 14:14:28 +0100 | [diff] [blame] | 291 | ObjPtr<mirror::Class> iter_exception_type = ResolveClassFromTypeIndex(iter_type_idx); |
Ian Rogers | 822266b | 2014-05-29 16:55:06 -0700 | [diff] [blame] | 292 | if (UNLIKELY(iter_exception_type == nullptr)) { |
| 293 | // Now have a NoClassDefFoundError as exception. Ignore in case the exception class was |
| 294 | // removed by a pro-guard like tool. |
Andreas Gampe | 72b3e43 | 2014-05-13 21:42:05 -0700 | [diff] [blame] | 295 | // Note: this is not RI behavior. RI would have failed when loading the class. |
Ian Rogers | 822266b | 2014-05-29 16:55:06 -0700 | [diff] [blame] | 296 | self->ClearException(); |
| 297 | // Delete any long jump context as this routine is called during a stack walk which will |
| 298 | // release its in use context at the end. |
| 299 | delete self->GetLongJumpContext(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 300 | LOG(WARNING) << "Unresolved exception class when finding catch block: " |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 301 | << DescriptorToDot(GetTypeDescriptorFromTypeIdx(iter_type_idx)); |
Mathieu Chartier | eb8167a | 2014-05-07 15:43:14 -0700 | [diff] [blame] | 302 | } else if (iter_exception_type->IsAssignableFrom(exception_type.Get())) { |
Ian Rogers | 9e8f45e | 2013-07-31 10:58:53 -0700 | [diff] [blame] | 303 | found_dex_pc = it.GetHandlerAddress(); |
| 304 | break; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 305 | } |
| 306 | } |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 307 | if (found_dex_pc != dex::kDexNoIndex) { |
Mathieu Chartier | dc578c7 | 2017-12-27 11:51:45 -0800 | [diff] [blame] | 308 | const Instruction& first_catch_instr = accessor.InstructionAt(found_dex_pc); |
Mathieu Chartier | 808c7a5 | 2017-12-15 11:19:33 -0800 | [diff] [blame] | 309 | *has_no_move_exception = (first_catch_instr.Opcode() != Instruction::MOVE_EXCEPTION); |
Ian Rogers | 9e8f45e | 2013-07-31 10:58:53 -0700 | [diff] [blame] | 310 | } |
Jeff Hao | aa96191 | 2014-04-22 13:54:32 -0700 | [diff] [blame] | 311 | // Put the exception back. |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 312 | if (exception != nullptr) { |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 313 | self->SetException(exception.Get()); |
Jeff Hao | aa96191 | 2014-04-22 13:54:32 -0700 | [diff] [blame] | 314 | } |
Ian Rogers | 9e8f45e | 2013-07-31 10:58:53 -0700 | [diff] [blame] | 315 | return found_dex_pc; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 316 | } |
| 317 | |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 318 | void ArtMethod::Invoke(Thread* self, uint32_t* args, uint32_t args_size, JValue* result, |
Ian Rogers | 0177e53 | 2014-02-11 16:30:46 -0800 | [diff] [blame] | 319 | const char* shorty) { |
Dave Allison | 648d711 | 2014-07-25 16:15:27 -0700 | [diff] [blame] | 320 | if (UNLIKELY(__builtin_frame_address(0) < self->GetStackEnd())) { |
| 321 | ThrowStackOverflowError(self); |
| 322 | return; |
| 323 | } |
| 324 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 325 | if (kIsDebugBuild) { |
| 326 | self->AssertThreadSuspensionIsAllowable(); |
| 327 | CHECK_EQ(kRunnable, self->GetState()); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 328 | CHECK_STREQ(GetInterfaceMethodIfProxy(kRuntimePointerSize)->GetShorty(), shorty); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 329 | } |
| 330 | |
| 331 | // Push a transition back into managed code onto the linked list in thread. |
| 332 | ManagedStack fragment; |
| 333 | self->PushManagedStackFragment(&fragment); |
| 334 | |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 335 | Runtime* runtime = Runtime::Current(); |
Jeff Hao | 74180ca | 2013-03-27 15:29:11 -0700 | [diff] [blame] | 336 | // Call the invoke stub, passing everything as arguments. |
Daniel Mihalyi | eb07669 | 2014-08-22 17:33:31 +0200 | [diff] [blame] | 337 | // If the runtime is not yet started or it is required by the debugger, then perform the |
Aart Bik | 0122320 | 2016-05-05 15:10:42 -0700 | [diff] [blame] | 338 | // Invocation by the interpreter, explicitly forcing interpretation over JIT to prevent |
| 339 | // cycling around the various JIT/Interpreter methods that handle method invocation. |
Daniel Mihalyi | eb07669 | 2014-08-22 17:33:31 +0200 | [diff] [blame] | 340 | if (UNLIKELY(!runtime->IsStarted() || Dbg::IsForcedInterpreterNeededForCalling(self, this))) { |
Ian Rogers | 5d27faf | 2014-05-02 17:17:18 -0700 | [diff] [blame] | 341 | if (IsStatic()) { |
Aart Bik | 0122320 | 2016-05-05 15:10:42 -0700 | [diff] [blame] | 342 | art::interpreter::EnterInterpreterFromInvoke( |
| 343 | self, this, nullptr, args, result, /*stay_in_interpreter*/ true); |
Ian Rogers | 5d27faf | 2014-05-02 17:17:18 -0700 | [diff] [blame] | 344 | } else { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 345 | mirror::Object* receiver = |
| 346 | reinterpret_cast<StackReference<mirror::Object>*>(&args[0])->AsMirrorPtr(); |
Aart Bik | 0122320 | 2016-05-05 15:10:42 -0700 | [diff] [blame] | 347 | art::interpreter::EnterInterpreterFromInvoke( |
| 348 | self, this, receiver, args + 1, result, /*stay_in_interpreter*/ true); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 349 | } |
| 350 | } else { |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 351 | DCHECK_EQ(runtime->GetClassLinker()->GetImagePointerSize(), kRuntimePointerSize); |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 352 | |
| 353 | constexpr bool kLogInvocationStartAndReturn = false; |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 354 | bool have_quick_code = GetEntryPointFromQuickCompiledCode() != nullptr; |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 355 | if (LIKELY(have_quick_code)) { |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 356 | if (kLogInvocationStartAndReturn) { |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 357 | LOG(INFO) << StringPrintf( |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 358 | "Invoking '%s' quick code=%p static=%d", PrettyMethod().c_str(), |
Mathieu Chartier | e401d14 | 2015-04-22 13:56:20 -0700 | [diff] [blame] | 359 | GetEntryPointFromQuickCompiledCode(), static_cast<int>(IsStatic() ? 1 : 0)); |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 360 | } |
Hiroshi Yamauchi | 9bdec88 | 2014-08-15 17:11:12 -0700 | [diff] [blame] | 361 | |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 362 | // Ensure that we won't be accidentally calling quick compiled code when -Xint. |
Mathieu Chartier | e5f13e5 | 2015-02-24 09:37:21 -0800 | [diff] [blame] | 363 | if (kIsDebugBuild && runtime->GetInstrumentation()->IsForcedInterpretOnly()) { |
Calin Juravle | ffc8707 | 2016-04-20 14:22:09 +0100 | [diff] [blame] | 364 | CHECK(!runtime->UseJitCompilation()); |
Alex Light | db01a09 | 2017-04-03 15:39:55 -0700 | [diff] [blame] | 365 | const void* oat_quick_code = |
| 366 | (IsNative() || !IsInvokable() || IsProxyMethod() || IsObsolete()) |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 367 | ? nullptr |
| 368 | : GetOatMethodQuickCode(runtime->GetClassLinker()->GetImagePointerSize()); |
Nicolas Geoffray | 6bc4374 | 2015-10-12 18:11:10 +0100 | [diff] [blame] | 369 | CHECK(oat_quick_code == nullptr || oat_quick_code != GetEntryPointFromQuickCompiledCode()) |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 370 | << "Don't call compiled code when -Xint " << PrettyMethod(); |
Hiroshi Yamauchi | 9bdec88 | 2014-08-15 17:11:12 -0700 | [diff] [blame] | 371 | } |
| 372 | |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 373 | if (!IsStatic()) { |
Ian Rogers | 0177e53 | 2014-02-11 16:30:46 -0800 | [diff] [blame] | 374 | (*art_quick_invoke_stub)(this, args, args_size, self, result, shorty); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 375 | } else { |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 376 | (*art_quick_invoke_static_stub)(this, args, args_size, self, result, shorty); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 377 | } |
Nicolas Geoffray | 14691c5 | 2015-03-05 10:40:17 +0000 | [diff] [blame] | 378 | if (UNLIKELY(self->GetException() == Thread::GetDeoptimizationException())) { |
Sebastien Hertz | fd3077e | 2014-04-23 10:32:43 +0200 | [diff] [blame] | 379 | // Unusual case where we were running generated code and an |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 380 | // exception was thrown to force the activations to be removed from the |
| 381 | // stack. Continue execution in the interpreter. |
Nicolas Geoffray | b331feb | 2016-02-05 16:51:53 +0000 | [diff] [blame] | 382 | self->DeoptimizeWithDeoptimizationException(result); |
Jeff Hao | 790ad90 | 2013-05-22 15:02:08 -0700 | [diff] [blame] | 383 | } |
| 384 | if (kLogInvocationStartAndReturn) { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 385 | LOG(INFO) << StringPrintf("Returned '%s' quick code=%p", PrettyMethod().c_str(), |
Elliott Hughes | 956af0f | 2014-12-11 14:34:28 -0800 | [diff] [blame] | 386 | GetEntryPointFromQuickCompiledCode()); |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 387 | } |
| 388 | } else { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 389 | LOG(INFO) << "Not invoking '" << PrettyMethod() << "' code=null"; |
Ian Rogers | f224751 | 2014-12-02 16:17:08 -0800 | [diff] [blame] | 390 | if (result != nullptr) { |
Jeff Hao | 5d91730 | 2013-02-27 17:57:33 -0800 | [diff] [blame] | 391 | result->SetJ(0); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 392 | } |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | // Pop transition. |
| 397 | self->PopManagedStackFragment(fragment); |
| 398 | } |
| 399 | |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 400 | const void* ArtMethod::RegisterNative(const void* native_method) { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 401 | CHECK(IsNative()) << PrettyMethod(); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 402 | CHECK(native_method != nullptr) << PrettyMethod(); |
Alex Light | d78ddec | 2017-04-18 15:20:38 -0700 | [diff] [blame] | 403 | void* new_native_method = nullptr; |
| 404 | Runtime::Current()->GetRuntimeCallbacks()->RegisterNativeMethod(this, |
| 405 | native_method, |
| 406 | /*out*/&new_native_method); |
| 407 | SetEntryPointFromJni(new_native_method); |
| 408 | return new_native_method; |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 409 | } |
| 410 | |
Ian Rogers | 6f3dbba | 2014-10-14 17:41:57 -0700 | [diff] [blame] | 411 | void ArtMethod::UnregisterNative() { |
Vladimir Marko | b0a6aee | 2017-10-27 10:34:04 +0100 | [diff] [blame] | 412 | CHECK(IsNative()) << PrettyMethod(); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 413 | // restore stub to lookup native pointer via dlsym |
Alex Light | d78ddec | 2017-04-18 15:20:38 -0700 | [diff] [blame] | 414 | SetEntryPointFromJni(GetJniDlsymLookupStub()); |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 415 | } |
| 416 | |
Alex Light | 9139e00 | 2015-10-09 15:59:48 -0700 | [diff] [blame] | 417 | bool ArtMethod::IsOverridableByDefaultMethod() { |
| 418 | return GetDeclaringClass()->IsInterface(); |
| 419 | } |
| 420 | |
Orion Hodson | eb4d19b | 2017-11-06 15:49:23 +0000 | [diff] [blame] | 421 | bool ArtMethod::IsPolymorphicSignature() { |
| 422 | // Methods with a polymorphic signature have constraints that they |
| 423 | // are native and varargs and belong to either MethodHandle or VarHandle. |
| 424 | if (!IsNative() || !IsVarargs()) { |
| 425 | return false; |
| 426 | } |
| 427 | mirror::Class* cls = GetDeclaringClass(); |
| 428 | return (cls == WellKnownClasses::ToClass(WellKnownClasses::java_lang_invoke_MethodHandle) || |
| 429 | cls == WellKnownClasses::ToClass(WellKnownClasses::java_lang_invoke_VarHandle)); |
| 430 | } |
| 431 | |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 432 | static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, |
| 433 | uint16_t class_def_idx, |
| 434 | uint32_t method_idx) { |
| 435 | const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_idx); |
| 436 | const uint8_t* class_data = dex_file.GetClassData(class_def); |
| 437 | CHECK(class_data != nullptr); |
| 438 | ClassDataItemIterator it(dex_file, class_data); |
Mathieu Chartier | e17cf24 | 2017-06-19 11:05:51 -0700 | [diff] [blame] | 439 | it.SkipAllFields(); |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 440 | // Process methods |
| 441 | size_t class_def_method_index = 0; |
| 442 | while (it.HasNextDirectMethod()) { |
| 443 | if (it.GetMemberIndex() == method_idx) { |
| 444 | return class_def_method_index; |
| 445 | } |
| 446 | class_def_method_index++; |
| 447 | it.Next(); |
| 448 | } |
| 449 | while (it.HasNextVirtualMethod()) { |
| 450 | if (it.GetMemberIndex() == method_idx) { |
| 451 | return class_def_method_index; |
| 452 | } |
| 453 | class_def_method_index++; |
| 454 | it.Next(); |
| 455 | } |
| 456 | DCHECK(!it.HasNext()); |
| 457 | LOG(FATAL) << "Failed to find method index " << method_idx << " in " << dex_file.GetLocation(); |
| 458 | UNREACHABLE(); |
| 459 | } |
| 460 | |
Alex Light | eee0bd4 | 2017-02-14 15:31:45 +0000 | [diff] [blame] | 461 | // We use the method's DexFile and declaring class name to find the OatMethod for an obsolete |
| 462 | // method. This is extremely slow but we need it if we want to be able to have obsolete native |
| 463 | // methods since we need this to find the size of its stack frames. |
| 464 | // |
| 465 | // NB We could (potentially) do this differently and rely on the way the transformation is applied |
| 466 | // in order to use the entrypoint to find this information. However, for debugging reasons (most |
| 467 | // notably making sure that new invokes of obsolete methods fail) we choose to instead get the data |
| 468 | // directly from the dex file. |
| 469 | static const OatFile::OatMethod FindOatMethodFromDexFileFor(ArtMethod* method, bool* found) |
| 470 | REQUIRES_SHARED(Locks::mutator_lock_) { |
| 471 | DCHECK(method->IsObsolete() && method->IsNative()); |
| 472 | const DexFile* dex_file = method->GetDexFile(); |
| 473 | |
| 474 | // recreate the class_def_index from the descriptor. |
| 475 | std::string descriptor_storage; |
| 476 | const DexFile::TypeId* declaring_class_type_id = |
| 477 | dex_file->FindTypeId(method->GetDeclaringClass()->GetDescriptor(&descriptor_storage)); |
| 478 | CHECK(declaring_class_type_id != nullptr); |
| 479 | dex::TypeIndex declaring_class_type_index = dex_file->GetIndexForTypeId(*declaring_class_type_id); |
| 480 | const DexFile::ClassDef* declaring_class_type_def = |
| 481 | dex_file->FindClassDef(declaring_class_type_index); |
| 482 | CHECK(declaring_class_type_def != nullptr); |
| 483 | uint16_t declaring_class_def_index = dex_file->GetIndexForClassDef(*declaring_class_type_def); |
| 484 | |
| 485 | size_t oat_method_index = GetOatMethodIndexFromMethodIndex(*dex_file, |
| 486 | declaring_class_def_index, |
| 487 | method->GetDexMethodIndex()); |
| 488 | |
| 489 | OatFile::OatClass oat_class = OatFile::FindOatClass(*dex_file, |
| 490 | declaring_class_def_index, |
| 491 | found); |
| 492 | if (!(*found)) { |
| 493 | return OatFile::OatMethod::Invalid(); |
| 494 | } |
| 495 | return oat_class.GetOatMethod(oat_method_index); |
| 496 | } |
| 497 | |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 498 | static const OatFile::OatMethod FindOatMethodFor(ArtMethod* method, |
| 499 | PointerSize pointer_size, |
| 500 | bool* found) |
| 501 | REQUIRES_SHARED(Locks::mutator_lock_) { |
Alex Light | eee0bd4 | 2017-02-14 15:31:45 +0000 | [diff] [blame] | 502 | if (UNLIKELY(method->IsObsolete())) { |
| 503 | // We shouldn't be calling this with obsolete methods except for native obsolete methods for |
| 504 | // which we need to use the oat method to figure out how large the quick frame is. |
| 505 | DCHECK(method->IsNative()) << "We should only be finding the OatMethod of obsolete methods in " |
| 506 | << "order to allow stack walking. Other obsolete methods should " |
| 507 | << "never need to access this information."; |
| 508 | DCHECK_EQ(pointer_size, kRuntimePointerSize) << "Obsolete method in compiler!"; |
| 509 | return FindOatMethodFromDexFileFor(method, found); |
| 510 | } |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 511 | // Although we overwrite the trampoline of non-static methods, we may get here via the resolution |
| 512 | // method for direct methods (or virtual methods made direct). |
| 513 | mirror::Class* declaring_class = method->GetDeclaringClass(); |
| 514 | size_t oat_method_index; |
| 515 | if (method->IsStatic() || method->IsDirect()) { |
| 516 | // Simple case where the oat method index was stashed at load time. |
| 517 | oat_method_index = method->GetMethodIndex(); |
| 518 | } else { |
| 519 | // Compute the oat_method_index by search for its position in the declared virtual methods. |
| 520 | oat_method_index = declaring_class->NumDirectMethods(); |
| 521 | bool found_virtual = false; |
| 522 | for (ArtMethod& art_method : declaring_class->GetVirtualMethods(pointer_size)) { |
| 523 | // Check method index instead of identity in case of duplicate method definitions. |
| 524 | if (method->GetDexMethodIndex() == art_method.GetDexMethodIndex()) { |
| 525 | found_virtual = true; |
| 526 | break; |
| 527 | } |
| 528 | oat_method_index++; |
| 529 | } |
| 530 | CHECK(found_virtual) << "Didn't find oat method index for virtual method: " |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 531 | << method->PrettyMethod(); |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 532 | } |
| 533 | DCHECK_EQ(oat_method_index, |
| 534 | GetOatMethodIndexFromMethodIndex(*declaring_class->GetDexCache()->GetDexFile(), |
| 535 | method->GetDeclaringClass()->GetDexClassDefIndex(), |
| 536 | method->GetDexMethodIndex())); |
| 537 | OatFile::OatClass oat_class = OatFile::FindOatClass(*declaring_class->GetDexCache()->GetDexFile(), |
| 538 | declaring_class->GetDexClassDefIndex(), |
| 539 | found); |
| 540 | if (!(*found)) { |
| 541 | return OatFile::OatMethod::Invalid(); |
| 542 | } |
| 543 | return oat_class.GetOatMethod(oat_method_index); |
| 544 | } |
| 545 | |
Mathieu Chartier | fc58af4 | 2015-04-16 18:00:39 -0700 | [diff] [blame] | 546 | bool ArtMethod::EqualParameters(Handle<mirror::ObjectArray<mirror::Class>> params) { |
| 547 | auto* dex_cache = GetDexCache(); |
| 548 | auto* dex_file = dex_cache->GetDexFile(); |
| 549 | const auto& method_id = dex_file->GetMethodId(GetDexMethodIndex()); |
| 550 | const auto& proto_id = dex_file->GetMethodPrototype(method_id); |
| 551 | const DexFile::TypeList* proto_params = dex_file->GetProtoParameters(proto_id); |
| 552 | auto count = proto_params != nullptr ? proto_params->Size() : 0u; |
Andreas Gampe | fa4333d | 2017-02-14 11:10:34 -0800 | [diff] [blame] | 553 | auto param_len = params != nullptr ? params->GetLength() : 0u; |
Mathieu Chartier | fc58af4 | 2015-04-16 18:00:39 -0700 | [diff] [blame] | 554 | if (param_len != count) { |
| 555 | return false; |
| 556 | } |
| 557 | auto* cl = Runtime::Current()->GetClassLinker(); |
| 558 | for (size_t i = 0; i < count; ++i) { |
Vladimir Marko | 28e012a | 2017-12-07 11:22:59 +0000 | [diff] [blame] | 559 | dex::TypeIndex type_idx = proto_params->GetTypeItem(i).type_idx_; |
| 560 | ObjPtr<mirror::Class> type = cl->ResolveType(type_idx, this); |
Mathieu Chartier | fc58af4 | 2015-04-16 18:00:39 -0700 | [diff] [blame] | 561 | if (type == nullptr) { |
| 562 | Thread::Current()->AssertPendingException(); |
| 563 | return false; |
| 564 | } |
| 565 | if (type != params->GetWithoutChecks(i)) { |
| 566 | return false; |
| 567 | } |
| 568 | } |
| 569 | return true; |
| 570 | } |
| 571 | |
Mathieu Chartier | 210531f | 2018-01-12 10:15:51 -0800 | [diff] [blame] | 572 | ArrayRef<const uint8_t> ArtMethod::GetQuickenedInfo() { |
Nicolas Geoffray | 8eaa8e5 | 2017-11-13 17:47:50 +0000 | [diff] [blame] | 573 | const DexFile& dex_file = GetDeclaringClass()->GetDexFile(); |
| 574 | const OatFile::OatDexFile* oat_dex_file = dex_file.GetOatDexFile(); |
| 575 | if (oat_dex_file == nullptr || (oat_dex_file->GetOatFile() == nullptr)) { |
Mathieu Chartier | 210531f | 2018-01-12 10:15:51 -0800 | [diff] [blame] | 576 | return ArrayRef<const uint8_t>(); |
Nicolas Geoffray | 4acefd3 | 2016-10-24 13:14:58 +0100 | [diff] [blame] | 577 | } |
Mathieu Chartier | 210531f | 2018-01-12 10:15:51 -0800 | [diff] [blame] | 578 | return oat_dex_file->GetOatFile()->GetVdexFile()->GetQuickenedInfoOf(dex_file, |
| 579 | GetDexMethodIndex()); |
Nicolas Geoffray | 6bc4374 | 2015-10-12 18:11:10 +0100 | [diff] [blame] | 580 | } |
| 581 | |
Nicolas Geoffray | b041a40 | 2017-11-13 15:16:22 +0000 | [diff] [blame] | 582 | uint16_t ArtMethod::GetIndexFromQuickening(uint32_t dex_pc) { |
| 583 | ArrayRef<const uint8_t> data = GetQuickenedInfo(); |
| 584 | if (data.empty()) { |
| 585 | return DexFile::kDexNoIndex16; |
| 586 | } |
| 587 | QuickenInfoTable table(data); |
| 588 | uint32_t quicken_index = 0; |
| 589 | for (const DexInstructionPcPair& pair : DexInstructions()) { |
| 590 | if (pair.DexPc() == dex_pc) { |
| 591 | return table.GetData(quicken_index); |
| 592 | } |
| 593 | if (QuickenInfoTable::NeedsIndexForInstruction(&pair.Inst())) { |
| 594 | ++quicken_index; |
| 595 | } |
| 596 | } |
| 597 | return DexFile::kDexNoIndex16; |
| 598 | } |
| 599 | |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 600 | const OatQuickMethodHeader* ArtMethod::GetOatQuickMethodHeader(uintptr_t pc) { |
Nicolas Geoffray | 5a23d2e | 2015-11-03 18:58:57 +0000 | [diff] [blame] | 601 | // Our callers should make sure they don't pass the instrumentation exit pc, |
| 602 | // as this method does not look at the side instrumentation stack. |
| 603 | DCHECK_NE(pc, reinterpret_cast<uintptr_t>(GetQuickInstrumentationExitPc())); |
| 604 | |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 605 | if (IsRuntimeMethod()) { |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 606 | return nullptr; |
| 607 | } |
| 608 | |
| 609 | Runtime* runtime = Runtime::Current(); |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 610 | const void* existing_entry_point = GetEntryPointFromQuickCompiledCode(); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 611 | CHECK(existing_entry_point != nullptr) << PrettyMethod() << "@" << this; |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 612 | ClassLinker* class_linker = runtime->GetClassLinker(); |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 613 | |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 614 | if (existing_entry_point == GetQuickProxyInvokeHandler()) { |
| 615 | DCHECK(IsProxyMethod() && !IsConstructor()); |
| 616 | // The proxy entry point does not have any method header. |
| 617 | return nullptr; |
| 618 | } |
| 619 | |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 620 | // Check whether the current entry point contains this pc. |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 621 | if (!class_linker->IsQuickGenericJniStub(existing_entry_point) && |
| 622 | !class_linker->IsQuickResolutionStub(existing_entry_point) && |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 623 | !class_linker->IsQuickToInterpreterBridge(existing_entry_point)) { |
| 624 | OatQuickMethodHeader* method_header = |
| 625 | OatQuickMethodHeader::FromEntryPoint(existing_entry_point); |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 626 | |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 627 | if (method_header->Contains(pc)) { |
| 628 | return method_header; |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | // Check whether the pc is in the JIT code cache. |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 633 | jit::Jit* jit = runtime->GetJit(); |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 634 | if (jit != nullptr) { |
| 635 | jit::JitCodeCache* code_cache = jit->GetCodeCache(); |
| 636 | OatQuickMethodHeader* method_header = code_cache->LookupMethodHeader(pc, this); |
| 637 | if (method_header != nullptr) { |
| 638 | DCHECK(method_header->Contains(pc)); |
| 639 | return method_header; |
| 640 | } else { |
Nicolas Geoffray | 2a524bd | 2016-03-01 12:18:47 +0000 | [diff] [blame] | 641 | DCHECK(!code_cache->ContainsPc(reinterpret_cast<const void*>(pc))) |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 642 | << PrettyMethod() |
Nicolas Geoffray | 2a524bd | 2016-03-01 12:18:47 +0000 | [diff] [blame] | 643 | << ", pc=" << std::hex << pc |
| 644 | << ", entry_point=" << std::hex << reinterpret_cast<uintptr_t>(existing_entry_point) |
| 645 | << ", copy=" << std::boolalpha << IsCopied() |
| 646 | << ", proxy=" << std::boolalpha << IsProxyMethod(); |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 647 | } |
| 648 | } |
| 649 | |
| 650 | // The code has to be in an oat file. |
| 651 | bool found; |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 652 | OatFile::OatMethod oat_method = |
| 653 | FindOatMethodFor(this, class_linker->GetImagePointerSize(), &found); |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 654 | if (!found) { |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 655 | if (IsNative()) { |
| 656 | // We are running the GenericJNI stub. The entrypoint may point |
| 657 | // to different entrypoints or to a JIT-compiled JNI stub. |
| 658 | DCHECK(class_linker->IsQuickGenericJniStub(existing_entry_point) || |
| 659 | class_linker->IsQuickResolutionStub(existing_entry_point) || |
| 660 | existing_entry_point == GetQuickInstrumentationEntryPoint() || |
| 661 | (jit != nullptr && jit->GetCodeCache()->ContainsPc(existing_entry_point))); |
Nicolas Geoffray | 49e4396 | 2015-10-28 16:16:16 +0000 | [diff] [blame] | 662 | return nullptr; |
| 663 | } |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 664 | // Only for unit tests. |
| 665 | // TODO(ngeoffray): Update these tests to pass the right pc? |
| 666 | return OatQuickMethodHeader::FromEntryPoint(existing_entry_point); |
| 667 | } |
| 668 | const void* oat_entry_point = oat_method.GetQuickCode(); |
| 669 | if (oat_entry_point == nullptr || class_linker->IsQuickGenericJniStub(oat_entry_point)) { |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 670 | DCHECK(IsNative()) << PrettyMethod(); |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 671 | return nullptr; |
| 672 | } |
| 673 | |
| 674 | OatQuickMethodHeader* method_header = OatQuickMethodHeader::FromEntryPoint(oat_entry_point); |
| 675 | if (pc == 0) { |
| 676 | // This is a downcall, it can only happen for a native method. |
| 677 | DCHECK(IsNative()); |
| 678 | return method_header; |
| 679 | } |
| 680 | |
Nicolas Geoffray | 1dad3f6 | 2015-10-23 14:59:54 +0100 | [diff] [blame] | 681 | DCHECK(method_header->Contains(pc)) |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 682 | << PrettyMethod() |
Roland Levillain | 0b671c0 | 2016-08-19 12:02:34 +0100 | [diff] [blame] | 683 | << " " << std::hex << pc << " " << oat_entry_point |
Mingyao Yang | 063fc77 | 2016-08-02 11:02:54 -0700 | [diff] [blame] | 684 | << " " << (uintptr_t)(method_header->GetCode() + method_header->GetCodeSize()); |
Nicolas Geoffray | 524e7ea | 2015-10-16 17:13:34 +0100 | [diff] [blame] | 685 | return method_header; |
| 686 | } |
| 687 | |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 688 | const void* ArtMethod::GetOatMethodQuickCode(PointerSize pointer_size) { |
| 689 | bool found; |
| 690 | OatFile::OatMethod oat_method = FindOatMethodFor(this, pointer_size, &found); |
| 691 | if (found) { |
| 692 | return oat_method.GetQuickCode(); |
| 693 | } |
| 694 | return nullptr; |
| 695 | } |
| 696 | |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 697 | bool ArtMethod::HasAnyCompiledCode() { |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 698 | if (IsNative() || !IsInvokable() || IsProxyMethod()) { |
| 699 | return false; |
| 700 | } |
| 701 | |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 702 | // Check whether the JIT has compiled it. |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 703 | Runtime* runtime = Runtime::Current(); |
| 704 | jit::Jit* jit = runtime->GetJit(); |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 705 | if (jit != nullptr && jit->GetCodeCache()->ContainsMethod(this)) { |
| 706 | return true; |
| 707 | } |
| 708 | |
| 709 | // Check whether we have AOT code. |
Vladimir Marko | 97d7e1c | 2016-10-04 14:44:28 +0100 | [diff] [blame] | 710 | return GetOatMethodQuickCode(runtime->GetClassLinker()->GetImagePointerSize()) != nullptr; |
Nicolas Geoffray | a5891e8 | 2015-11-06 14:18:27 +0000 | [diff] [blame] | 711 | } |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 712 | |
David Brazdil | 904e75a | 2018-05-15 13:45:08 +0100 | [diff] [blame^] | 713 | void ArtMethod::SetNotIntrinsic() { |
| 714 | if (!IsIntrinsic()) { |
| 715 | return; |
| 716 | } |
| 717 | |
| 718 | // Query the hidden API access flags of the intrinsic. |
| 719 | HiddenApiAccessFlags::ApiList intrinsic_api_list = GetHiddenApiAccessFlags(); |
| 720 | |
| 721 | // Clear intrinsic-related access flags. |
| 722 | ClearAccessFlags(kAccIntrinsic | kAccIntrinsicBits); |
| 723 | |
| 724 | // Re-apply hidden API access flags now that the method is not an intrinsic. |
| 725 | SetAccessFlags(HiddenApiAccessFlags::EncodeForRuntime(GetAccessFlags(), intrinsic_api_list)); |
| 726 | DCHECK_EQ(GetHiddenApiAccessFlags(), intrinsic_api_list); |
| 727 | } |
| 728 | |
| 729 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 730 | void ArtMethod::CopyFrom(ArtMethod* src, PointerSize image_pointer_size) { |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 731 | memcpy(reinterpret_cast<void*>(this), reinterpret_cast<const void*>(src), |
| 732 | Size(image_pointer_size)); |
| 733 | declaring_class_ = GcRoot<mirror::Class>(const_cast<ArtMethod*>(src)->GetDeclaringClass()); |
| 734 | |
| 735 | // If the entry point of the method we are copying from is from JIT code, we just |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 736 | // put the entry point of the new method to interpreter or GenericJNI. We could set |
| 737 | // the entry point to the JIT code, but this would require taking the JIT code cache |
| 738 | // lock to notify it, which we do not want at this level. |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 739 | Runtime* runtime = Runtime::Current(); |
Calin Juravle | ffc8707 | 2016-04-20 14:22:09 +0100 | [diff] [blame] | 740 | if (runtime->UseJitCompilation()) { |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 741 | if (runtime->GetJit()->GetCodeCache()->ContainsPc(GetEntryPointFromQuickCompiledCode())) { |
Vladimir Marko | 2196c65 | 2017-11-30 16:16:07 +0000 | [diff] [blame] | 742 | SetEntryPointFromQuickCompiledCodePtrSize( |
| 743 | src->IsNative() ? GetQuickGenericJniStub() : GetQuickToInterpreterBridge(), |
| 744 | image_pointer_size); |
Nicolas Geoffray | 22cf3d3 | 2015-11-02 11:57:11 +0000 | [diff] [blame] | 745 | } |
| 746 | } |
| 747 | // Clear the profiling info for the same reasons as the JIT code. |
| 748 | if (!src->IsNative()) { |
| 749 | SetProfilingInfoPtrSize(nullptr, image_pointer_size); |
| 750 | } |
| 751 | // Clear hotness to let the JIT properly decide when to compile this method. |
| 752 | hotness_count_ = 0; |
| 753 | } |
| 754 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 755 | bool ArtMethod::IsImagePointerSize(PointerSize pointer_size) { |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 756 | // Hijack this function to get access to PtrSizedFieldsOffset. |
| 757 | // |
| 758 | // Ensure that PrtSizedFieldsOffset is correct. We rely here on usually having both 32-bit and |
| 759 | // 64-bit builds. |
| 760 | static_assert(std::is_standard_layout<ArtMethod>::value, "ArtMethod is not standard layout."); |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 761 | static_assert( |
| 762 | (sizeof(void*) != 4) || |
| 763 | (offsetof(ArtMethod, ptr_sized_fields_) == PtrSizedFieldsOffset(PointerSize::k32)), |
| 764 | "Unexpected 32-bit class layout."); |
| 765 | static_assert( |
| 766 | (sizeof(void*) != 8) || |
| 767 | (offsetof(ArtMethod, ptr_sized_fields_) == PtrSizedFieldsOffset(PointerSize::k64)), |
| 768 | "Unexpected 64-bit class layout."); |
Andreas Gampe | 479b1de | 2016-07-19 18:27:17 -0700 | [diff] [blame] | 769 | |
Andreas Gampe | 75f0885 | 2016-07-19 08:06:07 -0700 | [diff] [blame] | 770 | Runtime* runtime = Runtime::Current(); |
| 771 | if (runtime == nullptr) { |
| 772 | return true; |
| 773 | } |
| 774 | return runtime->GetClassLinker()->GetImagePointerSize() == pointer_size; |
| 775 | } |
| 776 | |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 777 | std::string ArtMethod::PrettyMethod(ArtMethod* m, bool with_signature) { |
| 778 | if (m == nullptr) { |
| 779 | return "null"; |
| 780 | } |
| 781 | return m->PrettyMethod(with_signature); |
| 782 | } |
| 783 | |
| 784 | std::string ArtMethod::PrettyMethod(bool with_signature) { |
Vladimir Marko | b8a55f8 | 2017-09-21 16:21:43 +0100 | [diff] [blame] | 785 | if (UNLIKELY(IsRuntimeMethod())) { |
| 786 | std::string result = GetDeclaringClassDescriptor(); |
| 787 | result += '.'; |
| 788 | result += GetName(); |
| 789 | // Do not add "<no signature>" even if `with_signature` is true. |
| 790 | return result; |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 791 | } |
Vladimir Marko | b8a55f8 | 2017-09-21 16:21:43 +0100 | [diff] [blame] | 792 | ArtMethod* m = |
| 793 | GetInterfaceMethodIfProxy(Runtime::Current()->GetClassLinker()->GetImagePointerSize()); |
| 794 | return m->GetDexFile()->PrettyMethod(m->GetDexMethodIndex(), with_signature); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 795 | } |
| 796 | |
| 797 | std::string ArtMethod::JniShortName() { |
Alex Light | 888a59e | 2017-01-25 11:41:41 -0800 | [diff] [blame] | 798 | return GetJniShortName(GetDeclaringClassDescriptor(), GetName()); |
David Sehr | 709b070 | 2016-10-13 09:12:37 -0700 | [diff] [blame] | 799 | } |
| 800 | |
| 801 | std::string ArtMethod::JniLongName() { |
| 802 | std::string long_name; |
| 803 | long_name += JniShortName(); |
| 804 | long_name += "__"; |
| 805 | |
| 806 | std::string signature(GetSignature().ToString()); |
| 807 | signature.erase(0, 1); |
| 808 | signature.erase(signature.begin() + signature.find(')'), signature.end()); |
| 809 | |
| 810 | long_name += MangleForJni(signature); |
| 811 | |
| 812 | return long_name; |
| 813 | } |
| 814 | |
Andreas Gampe | c6ea7d0 | 2017-02-01 16:46:28 -0800 | [diff] [blame] | 815 | // AssertSharedHeld doesn't work in GetAccessFlags, so use a NO_THREAD_SAFETY_ANALYSIS helper. |
| 816 | // TODO: Figure out why ASSERT_SHARED_CAPABILITY doesn't work. |
| 817 | template <ReadBarrierOption kReadBarrierOption> |
| 818 | ALWAYS_INLINE static inline void DoGetAccessFlagsHelper(ArtMethod* method) |
| 819 | NO_THREAD_SAFETY_ANALYSIS { |
| 820 | CHECK(method->IsRuntimeMethod() || |
| 821 | method->GetDeclaringClass<kReadBarrierOption>()->IsIdxLoaded() || |
| 822 | method->GetDeclaringClass<kReadBarrierOption>()->IsErroneous()); |
| 823 | } |
| 824 | |
| 825 | template <ReadBarrierOption kReadBarrierOption> void ArtMethod::GetAccessFlagsDCheck() { |
| 826 | if (kCheckDeclaringClassState) { |
| 827 | Thread* self = Thread::Current(); |
| 828 | if (!Locks::mutator_lock_->IsSharedHeld(self)) { |
| 829 | if (self->IsThreadSuspensionAllowable()) { |
| 830 | ScopedObjectAccess soa(self); |
| 831 | CHECK(IsRuntimeMethod() || |
| 832 | GetDeclaringClass<kReadBarrierOption>()->IsIdxLoaded() || |
| 833 | GetDeclaringClass<kReadBarrierOption>()->IsErroneous()); |
| 834 | } |
| 835 | } else { |
| 836 | // We cannot use SOA in this case. We might be holding the lock, but may not be in the |
| 837 | // runnable state (e.g., during GC). |
| 838 | Locks::mutator_lock_->AssertSharedHeld(self); |
| 839 | DoGetAccessFlagsHelper<kReadBarrierOption>(this); |
| 840 | } |
| 841 | } |
| 842 | } |
| 843 | template void ArtMethod::GetAccessFlagsDCheck<ReadBarrierOption::kWithReadBarrier>(); |
| 844 | template void ArtMethod::GetAccessFlagsDCheck<ReadBarrierOption::kWithoutReadBarrier>(); |
| 845 | |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 846 | } // namespace art |