1 /* 2 * Copyright (C) 2012 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 17 #include "entrypoints/entrypoint_utils-inl.h" 18 #include "mirror/art_method-inl.h" 19 #include "mirror/dex_cache-inl.h" 20 #include "mirror/object-inl.h" 21 22 namespace art { 23 24 template<InvokeType type, bool access_check> 25 mirror::ArtMethod* FindMethodHelper(uint32_t method_idx, mirror::Object* this_object, 26 mirror::ArtMethod* caller_method, Thread* self) { 27 mirror::ArtMethod* method = FindMethodFast(method_idx, this_object, caller_method, 28 access_check, type); 29 if (UNLIKELY(method == NULL)) { 30 // Note: This can cause thread suspension. 31 self->AssertThreadSuspensionIsAllowable(); 32 method = FindMethodFromCode<type, access_check>(method_idx, &this_object, &caller_method, 33 self); 34 if (UNLIKELY(method == NULL)) { 35 CHECK(self->IsExceptionPending()); 36 return 0; // failure 37 } 38 } 39 DCHECK(!self->IsExceptionPending()); 40 #if defined(ART_USE_PORTABLE_COMPILER) 41 const void* code = method->GetEntryPointFromPortableCompiledCode(); 42 #else 43 const void* code = nullptr; 44 #endif 45 46 // When we return, the caller will branch to this address, so it had better not be 0! 47 if (UNLIKELY(code == NULL)) { 48 LOG(FATAL) << "Code was NULL in method: " << PrettyMethod(method) 49 << " location: " << method->GetDexFile()->GetLocation(); 50 } 51 return method; 52 } 53 54 // Explicit template declarations of FindMethodHelper for all invoke types. 55 #define EXPLICIT_FIND_METHOD_HELPER_TEMPLATE_DECL(_type, _access_check) \ 56 template SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) \ 57 mirror::ArtMethod* FindMethodHelper<_type, _access_check>(uint32_t method_idx, \ 58 mirror::Object* this_object, \ 59 mirror::ArtMethod* caller_method, \ 60 Thread* thread) 61 #define EXPLICIT_FIND_METHOD_HELPER_TYPED_TEMPLATE_DECL(_type) \ 62 EXPLICIT_FIND_METHOD_HELPER_TEMPLATE_DECL(_type, false); \ 63 EXPLICIT_FIND_METHOD_HELPER_TEMPLATE_DECL(_type, true) 64 65 EXPLICIT_FIND_METHOD_HELPER_TYPED_TEMPLATE_DECL(kStatic); 66 EXPLICIT_FIND_METHOD_HELPER_TYPED_TEMPLATE_DECL(kDirect); 67 EXPLICIT_FIND_METHOD_HELPER_TYPED_TEMPLATE_DECL(kVirtual); 68 EXPLICIT_FIND_METHOD_HELPER_TYPED_TEMPLATE_DECL(kSuper); 69 EXPLICIT_FIND_METHOD_HELPER_TYPED_TEMPLATE_DECL(kInterface); 70 71 #undef EXPLICIT_FIND_METHOD_HELPER_TYPED_TEMPLATE_DECL 72 #undef EXPLICIT_FIND_METHOD_HELPER_TEMPLATE_DECL 73 74 extern "C" mirror::Object* art_portable_find_static_method_from_code_with_access_check(uint32_t method_idx, 75 mirror::Object* this_object, 76 mirror::ArtMethod* referrer, 77 Thread* thread) 78 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 79 return FindMethodHelper<kStatic, true>(method_idx, this_object, referrer, thread); 80 } 81 82 extern "C" mirror::Object* art_portable_find_direct_method_from_code_with_access_check(uint32_t method_idx, 83 mirror::Object* this_object, 84 mirror::ArtMethod* referrer, 85 Thread* thread) 86 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 87 return FindMethodHelper<kDirect, true>(method_idx, this_object, referrer, thread); 88 } 89 90 extern "C" mirror::Object* art_portable_find_virtual_method_from_code_with_access_check(uint32_t method_idx, 91 mirror::Object* this_object, 92 mirror::ArtMethod* referrer, 93 Thread* thread) 94 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 95 return FindMethodHelper<kVirtual, true>(method_idx, this_object, referrer, thread); 96 } 97 98 extern "C" mirror::Object* art_portable_find_super_method_from_code_with_access_check(uint32_t method_idx, 99 mirror::Object* this_object, 100 mirror::ArtMethod* referrer, 101 Thread* thread) 102 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 103 return FindMethodHelper<kSuper, true>(method_idx, this_object, referrer, thread); 104 } 105 106 extern "C" mirror::Object* art_portable_find_interface_method_from_code_with_access_check(uint32_t method_idx, 107 mirror::Object* this_object, 108 mirror::ArtMethod* referrer, 109 Thread* thread) 110 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 111 return FindMethodHelper<kInterface, true>(method_idx, this_object, referrer, thread); 112 } 113 114 extern "C" mirror::Object* art_portable_find_interface_method_from_code(uint32_t method_idx, 115 mirror::Object* this_object, 116 mirror::ArtMethod* referrer, 117 Thread* thread) 118 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 119 return FindMethodHelper<kInterface, false>(method_idx, this_object, referrer, thread); 120 } 121 122 } // namespace art 123
