/* * Copyright (C) 2012 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef ART_LIBDEXFILE_DEX_MODIFIERS_H_ #define ART_LIBDEXFILE_DEX_MODIFIERS_H_ #include #include namespace art { static constexpr uint32_t kAccPublic = 0x0001; // class, field, method, ic static constexpr uint32_t kAccPrivate = 0x0002; // field, method, ic static constexpr uint32_t kAccProtected = 0x0004; // field, method, ic static constexpr uint32_t kAccStatic = 0x0008; // field, method, ic static constexpr uint32_t kAccFinal = 0x0010; // class, field, method, ic static constexpr uint32_t kAccSynchronized = 0x0020; // method (only allowed on natives) static constexpr uint32_t kAccSuper = 0x0020; // class (not used in dex) static constexpr uint32_t kAccVolatile = 0x0040; // field static constexpr uint32_t kAccBridge = 0x0040; // method (1.5) static constexpr uint32_t kAccTransient = 0x0080; // field static constexpr uint32_t kAccVarargs = 0x0080; // method (1.5) static constexpr uint32_t kAccNative = 0x0100; // method static constexpr uint32_t kAccInterface = 0x0200; // class, ic static constexpr uint32_t kAccAbstract = 0x0400; // class, method, ic static constexpr uint32_t kAccStrict = 0x0800; // method static constexpr uint32_t kAccSynthetic = 0x1000; // class, field, method, ic static constexpr uint32_t kAccAnnotation = 0x2000; // class, ic (1.5) static constexpr uint32_t kAccEnum = 0x4000; // class, field, ic (1.5) static constexpr uint32_t kAccJavaFlagsMask = 0xffff; // bits set from Java sources (low 16) static constexpr uint32_t kAccConstructor = 0x00010000; // method (dex only) <(cl)init> static constexpr uint32_t kAccDeclaredSynchronized = 0x00020000; // method (dex only) static constexpr uint32_t kAccClassIsProxy = 0x00040000; // class (dex only) // Set to indicate that the ArtMethod is obsolete and has a different DexCache + DexFile from its // declaring class. This flag may only be applied to methods. static constexpr uint32_t kAccObsoleteMethod = 0x00040000; // method (runtime) // Used by a method to denote that its execution does not need to go through slow path interpreter. static constexpr uint32_t kAccSkipAccessChecks = 0x00080000; // method (runtime, not native) // Used by a class to denote that the verifier has attempted to check it at least once. static constexpr uint32_t kAccVerificationAttempted = 0x00080000; // class (runtime) static constexpr uint32_t kAccSkipHiddenapiChecks = 0x00100000; // class (runtime) // Used by a class to denote that this class and any objects with this as a // declaring-class/super-class are to be considered obsolete, meaning they should not be used by. static constexpr uint32_t kAccObsoleteObject = 0x00200000; // class (runtime) // This is set by the class linker during LinkInterfaceMethods. It is used by a method // to represent that it was copied from its declaring class into another class. // We need copies of the original method because the method may end up in different // places in classes vtables, and the vtable index is set in ArtMethod.method_index. // // Default methods copied to a sub-interface or a concrete class shall have this bit set. // Default conflict methods shall be marked as copied, abstract and default. // Miranda methods shall be marked as copied and abstract but not default. // // We do not have intrinsics for any default methods and therefore intrinsics are never // copied. We can therefore use a flag from the intrinsic flags range. static constexpr uint32_t kAccCopied = 0x01000000; // method (runtime) static constexpr uint32_t kAccDefault = 0x00400000; // method (runtime) // Native method flags are set when linking the methods based on the presence of the // @dalvik.annotation.optimization.{Fast,Critical}Native annotations with build visibility. // Reuse the values of kAccSkipAccessChecks and kAccMiranda which are not used for native methods. static constexpr uint32_t kAccFastNative = 0x00080000; // method (runtime; native only) static constexpr uint32_t kAccCriticalNative = 0x00100000; // method (runtime; native only) // Set by the JIT when clearing profiling infos to denote that a method was previously warm. static constexpr uint32_t kAccPreviouslyWarm = 0x00800000; // method (runtime) // Set by the verifier for a method we do not want the compiler to compile. static constexpr uint32_t kAccCompileDontBother = 0x02000000; // method (runtime) // Used in conjunction with kAccCompileDontBother to mark the method as pre compiled // by the JIT compiler. We are reusing the value of the kAccPreviouslyWarm flag which // is meaningless for other methods with kAccCompileDontBother as we do not collect // samples for such methods. static constexpr uint32_t kAccPreCompiled = 0x00800000; // method (runtime) static_assert(kAccPreCompiled == kAccPreviouslyWarm); // Set by the verifier for a method that could not be verified to follow structured locking. static constexpr uint32_t kAccMustCountLocks = 0x04000000; // method (runtime) // Set by the class linker for a method that has only one implementation for a // virtual call. static constexpr uint32_t kAccSingleImplementation = 0x08000000; // method (runtime) // Whether nterp can take a fast path when entering this method (runtime; non-native) static constexpr uint32_t kAccNterpEntryPointFastPathFlag = 0x00100000; // Set by the class linker to mark that a method does not have floating points // or longs in its shorty. static constexpr uint32_t kAccNterpInvokeFastPathFlag = 0x00200000; // method (runtime) static constexpr uint32_t kAccPublicApi = 0x10000000; // field, method static constexpr uint32_t kAccCorePlatformApi = 0x20000000; // field, method // Non-intrinsics: Caches whether we can use fast-path in the interpreter invokes. // Intrinsics: These bits are part of the intrinsic ordinal. static constexpr uint32_t kAccFastInterpreterToInterpreterInvoke = 0x40000000; // method. // Set by the compiler driver when compiling boot classes with instrinsic methods. static constexpr uint32_t kAccIntrinsic = 0x80000000; // method (runtime) // Special runtime-only flags. // Interface and all its super-interfaces with default methods have been recursively initialized. static constexpr uint32_t kAccRecursivelyInitialized = 0x20000000; // Interface declares some default method. static constexpr uint32_t kAccHasDefaultMethod = 0x40000000; // class/ancestor overrides finalize() static constexpr uint32_t kAccClassIsFinalizable = 0x80000000; static constexpr uint32_t kAccHiddenapiBits = kAccPublicApi | kAccCorePlatformApi; // Continuous sequence of bits used to hold the ordinal of an intrinsic method. Flags // which overlap are not valid when kAccIntrinsic is set. static constexpr uint32_t kAccIntrinsicBits = kAccHiddenapiBits | kAccSingleImplementation | kAccMustCountLocks | kAccCompileDontBother | kAccCopied | kAccPreviouslyWarm | kAccFastInterpreterToInterpreterInvoke; // Valid (meaningful) bits for a field. static constexpr uint32_t kAccValidFieldFlags = kAccPublic | kAccPrivate | kAccProtected | kAccStatic | kAccFinal | kAccVolatile | kAccTransient | kAccSynthetic | kAccEnum; // Valid (meaningful) bits for a method. static constexpr uint32_t kAccValidMethodFlags = kAccPublic | kAccPrivate | kAccProtected | kAccStatic | kAccFinal | kAccSynchronized | kAccBridge | kAccVarargs | kAccNative | kAccAbstract | kAccStrict | kAccSynthetic | kAccConstructor | kAccDeclaredSynchronized; static_assert(((kAccIntrinsic | kAccIntrinsicBits) & kAccValidMethodFlags) == 0, "Intrinsic bits and valid dex file method access flags must not overlap."); // Valid (meaningful) bits for a class (not interface). // Note 1. These are positive bits. Other bits may have to be zero. // Note 2. Inner classes can expose more access flags to Java programs. That is handled by libcore. static constexpr uint32_t kAccValidClassFlags = kAccPublic | kAccFinal | kAccSuper | kAccAbstract | kAccSynthetic | kAccEnum; // Valid (meaningful) bits for an interface. // Note 1. Annotations are interfaces. // Note 2. These are positive bits. Other bits may have to be zero. // Note 3. Inner classes can expose more access flags to Java programs. That is handled by libcore. static constexpr uint32_t kAccValidInterfaceFlags = kAccPublic | kAccInterface | kAccAbstract | kAccSynthetic | kAccAnnotation; static constexpr uint32_t kAccVisibilityFlags = kAccPublic | kAccPrivate | kAccProtected; // Returns a human-readable version of the Java part of the access flags, e.g., "private static " // (note the trailing whitespace). std::string PrettyJavaAccessFlags(uint32_t access_flags); } // namespace art #endif // ART_LIBDEXFILE_DEX_MODIFIERS_H_