Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 1 | // Copyright 2011 Google Inc. All Rights Reserved. |
| 2 | |
| 3 | #ifndef ART_SRC_CLASS_LINKER_H_ |
| 4 | #define ART_SRC_CLASS_LINKER_H_ |
| 5 | |
| 6 | #include <map> |
| 7 | #include <utility> |
| 8 | #include <vector> |
| 9 | |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame^] | 10 | #include "heap.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 11 | #include "macros.h" |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 12 | #include "dex_file.h" |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 13 | #include "thread.h" |
| 14 | #include "object.h" |
| 15 | #include "gtest/gtest.h" |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 16 | |
| 17 | namespace art { |
| 18 | |
| 19 | class ClassLinker { |
| 20 | public: |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 21 | // Initializes the class linker. |
Carl Shapiro | 2ed144c | 2011-07-26 16:52:08 -0700 | [diff] [blame] | 22 | static ClassLinker* Create(const std::vector<DexFile*>& boot_class_path); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 23 | |
| 24 | ~ClassLinker() {} |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 25 | |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 26 | DexCache* AllocDexCache(); |
| 27 | Class* AllocClass(DexCache* dex_cache); |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 28 | StaticField* AllocStaticField(); |
| 29 | InstanceField* AllocInstanceField(); |
| 30 | Method* AllocMethod(); |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame^] | 31 | template <class C> ObjectArray<C>* AllocObjectArray(size_t length) { |
| 32 | return Heap::AllocObjectArray<C>(object_array_class_, length); |
| 33 | } |
| 34 | |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 35 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 36 | // Finds a class by its descriptor name. |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 37 | // If dex_file is null, searches boot_class_path_. |
Brian Carlstrom | 6cc1845 | 2011-07-18 15:10:33 -0700 | [diff] [blame] | 38 | Class* FindClass(const StringPiece& descriptor, |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 39 | Object* class_loader, |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 40 | const DexFile* dex_file); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 41 | |
Brian Carlstrom | 6cc1845 | 2011-07-18 15:10:33 -0700 | [diff] [blame] | 42 | Class* FindSystemClass(const StringPiece& descriptor) { |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 43 | return FindClass(descriptor, NULL, NULL); |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 44 | } |
| 45 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 46 | bool InitializeClass(Class* klass); |
| 47 | |
Brian Carlstrom | 6cc1845 | 2011-07-18 15:10:33 -0700 | [diff] [blame] | 48 | Class* LookupClass(const StringPiece& descriptor, Object* class_loader); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 49 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 50 | Class* ResolveClass(const Class* referring, |
| 51 | uint32_t class_idx, |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 52 | const DexFile* dex_file); |
Carl Shapiro | 5fafe2b | 2011-07-09 15:34:41 -0700 | [diff] [blame] | 53 | |
| 54 | String* ResolveString(const Class* referring, uint32_t string_idx); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 55 | |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame^] | 56 | void RegisterDexFile(const DexFile* dex_file); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 57 | |
| 58 | private: |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 59 | ClassLinker() {} |
| 60 | |
Carl Shapiro | 2ed144c | 2011-07-26 16:52:08 -0700 | [diff] [blame] | 61 | void Init(const std::vector<DexFile*>& boot_class_path_); |
Carl Shapiro | 61e019d | 2011-07-14 16:53:09 -0700 | [diff] [blame] | 62 | |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 63 | Class* CreatePrimitiveClass(const StringPiece& descriptor); |
| 64 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 65 | Class* CreateArrayClass(const StringPiece& descriptor, |
| 66 | Object* class_loader, |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 67 | const DexFile* dex_file); |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 68 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 69 | Class* FindPrimitiveClass(char type); |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 70 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 71 | const DexFile* FindDexFile(const DexCache* dex_cache) const; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 72 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 73 | DexCache* FindDexCache(const DexFile* dex_file) const; |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 74 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 75 | typedef std::pair<const DexFile*, const DexFile::ClassDef*> ClassPathEntry; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 76 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 77 | void AppendToBootClassPath(DexFile* dex_file); |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 78 | |
| 79 | ClassPathEntry FindInBootClassPath(const StringPiece& descriptor); |
| 80 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 81 | void LoadClass(const DexFile& dex_file, |
| 82 | const DexFile::ClassDef& dex_class_def, |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 83 | Class* klass); |
| 84 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 85 | void LoadInterfaces(const DexFile& dex_file, |
| 86 | const DexFile::ClassDef& dex_class_def, |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 87 | Class *klass); |
| 88 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 89 | void LoadField(const DexFile& dex_file, |
| 90 | const DexFile::Field& dex_field, |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 91 | Class* klass, |
| 92 | Field* dst); |
| 93 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 94 | void LoadMethod(const DexFile& dex_file, |
| 95 | const DexFile::Method& dex_method, |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 96 | Class* klass, |
| 97 | Method* dst); |
Brian Carlstrom | 934486c | 2011-07-12 23:42:50 -0700 | [diff] [blame] | 98 | |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 99 | // Inserts a class into the class table. Returns true if the class |
| 100 | // was inserted. |
| 101 | bool InsertClass(Class* klass); |
| 102 | |
| 103 | bool InitializeSuperClass(Class* klass); |
| 104 | |
| 105 | void InitializeStaticFields(Class* klass); |
| 106 | |
| 107 | bool ValidateSuperClassDescriptors(const Class* klass); |
| 108 | |
| 109 | bool HasSameDescriptorClasses(const char* descriptor, |
| 110 | const Class* klass1, |
| 111 | const Class* klass2); |
| 112 | |
| 113 | bool HasSameMethodDescriptorClasses(const Method* descriptor, |
| 114 | const Class* klass1, |
| 115 | const Class* klass2); |
| 116 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 117 | bool HasSameNameAndPrototype(const Method* m1, const Method* m2) const { |
| 118 | return HasSameName(m1, m2) && HasSamePrototype(m1, m2); |
| 119 | } |
| 120 | |
| 121 | bool HasSameName(const Method* m1, const Method* m2) const { |
| 122 | return m1->GetName() == m2->GetName(); |
| 123 | } |
| 124 | |
| 125 | bool HasSamePrototype(const Method* m1, const Method* m2) const { |
| 126 | return HasSameReturnType(m1, m2) && HasSameArgumentTypes(m1, m2); |
| 127 | } |
| 128 | |
| 129 | bool HasSameReturnType(const Method* m1, const Method* m2) const; |
| 130 | |
| 131 | bool HasSameArgumentTypes(const Method* m1, const Method* m2) const; |
| 132 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 133 | bool LinkClass(Class* klass, const DexFile* dex_file); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 134 | |
| 135 | bool LinkSuperClass(Class* klass); |
| 136 | |
Brian Carlstrom | f615a61 | 2011-07-23 12:50:34 -0700 | [diff] [blame] | 137 | bool LinkInterfaces(Class* klass, const DexFile* dex_file); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 138 | |
| 139 | bool LinkMethods(Class* klass); |
| 140 | |
| 141 | bool LinkVirtualMethods(Class* klass); |
| 142 | |
| 143 | bool LinkInterfaceMethods(Class* klass); |
| 144 | |
| 145 | void LinkAbstractMethods(Class* klass); |
| 146 | |
| 147 | bool LinkInstanceFields(Class* klass); |
| 148 | |
| 149 | void CreateReferenceOffsets(Class* klass); |
| 150 | |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame^] | 151 | std::vector<const DexFile*> boot_class_path_; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 152 | |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame^] | 153 | std::vector<const DexFile*> dex_files_; |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 154 | |
Brian Carlstrom | 7e49dca | 2011-07-22 18:07:34 -0700 | [diff] [blame] | 155 | std::vector<DexCache*> dex_caches_; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 156 | |
| 157 | // TODO: multimap |
Brian Carlstrom | 6cc1845 | 2011-07-18 15:10:33 -0700 | [diff] [blame] | 158 | typedef std::map<const StringPiece, Class*> Table; |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 159 | |
| 160 | Table classes_; |
| 161 | |
| 162 | Mutex* classes_lock_; |
| 163 | |
| 164 | // TODO: classpath |
| 165 | |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 166 | Class* java_lang_Class_; |
| 167 | Class* java_lang_Object_; |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 168 | Class* java_lang_reflect_Field_; |
| 169 | Class* java_lang_reflect_Method_; |
Brian Carlstrom | a331b3c | 2011-07-18 17:47:56 -0700 | [diff] [blame] | 170 | Class* java_lang_Cloneable_; |
| 171 | Class* java_io_Serializable_; |
| 172 | Class* java_lang_String_; |
| 173 | |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 174 | Class* primitive_boolean_; |
| 175 | Class* primitive_char_; |
| 176 | Class* primitive_float_; |
| 177 | Class* primitive_double_; |
| 178 | Class* primitive_byte_; |
| 179 | Class* primitive_short_; |
| 180 | Class* primitive_int_; |
| 181 | Class* primitive_long_; |
| 182 | Class* primitive_void_; |
| 183 | |
Brian Carlstrom | a080803 | 2011-07-18 00:39:23 -0700 | [diff] [blame] | 184 | Class* char_array_class_; |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 185 | Class* class_array_class_; |
| 186 | Class* object_array_class_; |
| 187 | Class* field_array_class_; |
| 188 | Class* method_array_class_; |
| 189 | |
Brian Carlstrom | 4a96b60 | 2011-07-26 16:40:23 -0700 | [diff] [blame^] | 190 | ObjectArray<Class>* array_interfaces_; |
Brian Carlstrom | 913af1b | 2011-07-23 21:41:13 -0700 | [diff] [blame] | 191 | InterfaceEntry* array_iftable_; |
Carl Shapiro | 565f507 | 2011-07-10 13:39:43 -0700 | [diff] [blame] | 192 | |
Brian Carlstrom | 578bbdc | 2011-07-21 14:07:47 -0700 | [diff] [blame] | 193 | FRIEND_TEST(ClassLinkerTest, ProtoCompare); |
| 194 | FRIEND_TEST(ClassLinkerTest, ProtoCompare2); |
Carl Shapiro | 0e5d75d | 2011-07-06 18:28:37 -0700 | [diff] [blame] | 195 | DISALLOW_COPY_AND_ASSIGN(ClassLinker); |
| 196 | }; |
| 197 | |
| 198 | } // namespace art |
| 199 | |
| 200 | #endif // ART_SRC_CLASS_LINKER_H_ |