/* * Copyright (C) 2008 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. */ /* * Declaration of the fundamental Object type and refinements thereof, plus * some functions for manipulating them. */ #ifndef _DALVIK_OO_OBJECT #define _DALVIK_OO_OBJECT #include <stddef.h> /* fwd decl */ struct DataObject; struct InitiatingLoaderList; struct ClassObject; struct StringObject; struct ArrayObject; struct Method; struct ExceptionEntry; struct LineNumEntry; struct StaticField; struct InstField; struct Field; struct RegisterMap; typedef struct DataObject DataObject; typedef struct InitiatingLoaderList InitiatingLoaderList; typedef struct ClassObject ClassObject; typedef struct StringObject StringObject; typedef struct ArrayObject ArrayObject; typedef struct Method Method; typedef struct ExceptionEntry ExceptionEntry; typedef struct LineNumEntry LineNumEntry; typedef struct StaticField StaticField; typedef struct InstField InstField; typedef struct Field Field; typedef struct RegisterMap RegisterMap; /* * Native function pointer type. * * "args[0]" holds the "this" pointer for virtual methods. * * The "Bridge" form is a super-set of the "Native" form; in many places * they are used interchangeably. Currently, all functions have all * arguments passed in, but some functions only care about the first two. * Passing extra arguments to a C function is (mostly) harmless. */ typedef void (*DalvikBridgeFunc)(const u4* args, JValue* pResult, const Method* method, struct Thread* self); typedef void (*DalvikNativeFunc)(const u4* args, JValue* pResult); /* vm-internal access flags and related definitions */ typedef enum AccessFlags { ACC_MIRANDA = 0x8000, // method (internal to VM) JAVA_FLAGS_MASK = 0xffff, // bits set from Java sources (low 16) } AccessFlags; /* Use the top 16 bits of the access flags field for * other class flags. Code should use the *CLASS_FLAG*() * macros to set/get these flags. */ typedef enum ClassFlags { CLASS_ISFINALIZABLE = (1<<31), // class/ancestor overrides finalize() CLASS_ISARRAY = (1<<30), // class is a "[*" CLASS_ISOBJECTARRAY = (1<<29), // class is a "[L*" or "[[*" CLASS_ISREFERENCE = (1<<28), // class is a soft/weak/phantom ref // only ISREFERENCE is set --> soft CLASS_ISWEAKREFERENCE = (1<<27), // class is a weak reference CLASS_ISPHANTOMREFERENCE = (1<<26), // class is a phantom reference CLASS_MULTIPLE_DEFS = (1<<25), // DEX verifier: defs in multiple DEXs /* unlike the others, these can be present in the optimized DEX file */ CLASS_ISOPTIMIZED = (1<<17), // class may contain opt instrs CLASS_ISPREVERIFIED = (1<<16), // class has been pre-verified } ClassFlags; /* bits we can reasonably expect to see set in a DEX access flags field */ #define EXPECTED_FILE_FLAGS \ (ACC_CLASS_MASK | CLASS_ISPREVERIFIED | CLASS_ISOPTIMIZED) /* * Get/set class flags. */ #define SET_CLASS_FLAG(clazz, flag) \ do { (clazz)->accessFlags |= (flag); } while (0) #define CLEAR_CLASS_FLAG(clazz, flag) \ do { (clazz)->accessFlags &= ~(flag); } while (0) #define IS_CLASS_FLAG_SET(clazz, flag) \ (((clazz)->accessFlags & (flag)) != 0) #define GET_CLASS_FLAG_GROUP(clazz, flags) \ ((u4)((clazz)->accessFlags & (flags))) /* * Use the top 16 bits of the access flags field for other method flags. * Code should use the *METHOD_FLAG*() macros to set/get these flags. */ typedef enum MethodFlags { METHOD_ISWRITABLE = (1<<31), // the method's code is writable } MethodFlags; /* * Get/set method flags. */ #define SET_METHOD_FLAG(method, flag) \ do { (method)->accessFlags |= (flag); } while (0) #define CLEAR_METHOD_FLAG(method, flag) \ do { (method)->accessFlags &= ~(flag); } while (0) #define IS_METHOD_FLAG_SET(method, flag) \ (((method)->accessFlags & (flag)) != 0) #define GET_METHOD_FLAG_GROUP(method, flags) \ ((u4)((method)->accessFlags & (flags))) /* current state of the class, increasing as we progress */ typedef enum ClassStatus { CLASS_ERROR = -1, CLASS_NOTREADY = 0, CLASS_LOADED = 1, CLASS_PREPARED = 2, /* part of linking */ CLASS_RESOLVED = 3, /* part of linking */ CLASS_VERIFYING = 4, /* in the process of being verified */ CLASS_VERIFIED = 5, /* logically part of linking; done pre-init */ CLASS_INITIALIZING = 6, /* class init in progress */ CLASS_INITIALIZED = 7, /* ready to go */ } ClassStatus; /* * Primitive type identifiers. We use these values as indexes into an * array of synthesized classes, so these start at zero and count up. * The order is arbitrary (mimics table in doc for newarray opcode), * but can't be changed without shuffling some reflection tables. * * PRIM_VOID can't be used as an array type, but we include it here for * other uses (e.g. Void.TYPE). */ typedef enum PrimitiveType { PRIM_NOT = -1, /* value is not a primitive type */ PRIM_BOOLEAN = 0, PRIM_CHAR = 1, PRIM_FLOAT = 2, PRIM_DOUBLE = 3, PRIM_BYTE = 4, PRIM_SHORT = 5, PRIM_INT = 6, PRIM_LONG = 7, PRIM_VOID = 8, PRIM_MAX } PrimitiveType; #define PRIM_TYPE_TO_LETTER "ZCFDBSIJV" /* must match order in enum */ /* * Definitions for packing refOffsets in ClassObject. */ /* * A magic value for refOffsets. Ignore the bits and walk the super * chain when this is the value. * [This is an unlikely "natural" value, since it would be 30 non-ref instance * fields followed by 2 ref instance fields.] */ #define CLASS_WALK_SUPER ((unsigned int)(3)) #define CLASS_SMALLEST_OFFSET (sizeof(struct Object)) #define CLASS_BITS_PER_WORD (sizeof(unsigned long int) * 8) #define CLASS_OFFSET_ALIGNMENT 4 #define CLASS_HIGH_BIT ((unsigned int)1 << (CLASS_BITS_PER_WORD - 1)) /* * Return a single bit, or zero if the encoding can't encode the offset. */ #define CLASS_BIT_FROM_OFFSET(byteOffset) \ (CLASS_HIGH_BIT >> \ (((unsigned int)(byteOffset) - CLASS_SMALLEST_OFFSET) / \ CLASS_OFFSET_ALIGNMENT)) /* * Return an offset, given a bit number as returned from CLZ. */ #define CLASS_OFFSET_FROM_CLZ(rshift) \ (((int)(rshift) * CLASS_OFFSET_ALIGNMENT) + CLASS_SMALLEST_OFFSET) /* * Used for iftable in ClassObject. */ typedef struct InterfaceEntry { /* pointer to interface class */ ClassObject* clazz; /* * Index into array of vtable offsets. This points into the ifviPool, * which holds the vtables for all interfaces declared by this class. */ int* methodIndexArray; } InterfaceEntry; /* * There are three types of objects: * Class objects - an instance of java.lang.Class * Array objects - an object created with a "new array" instruction * Data objects - an object that is neither of the above * * We also define String objects. At present they're equivalent to * DataObject, but that may change. (Either way, they make some of the * code more obvious.) * * All objects have an Object header followed by type-specific data. */ typedef struct Object { /* ptr to class object */ ClassObject* clazz; /* thin lock or "fat" monitor */ Lock lock; } Object; /* * Properly initialize an Object. * void DVM_OBJECT_INIT(Object *obj, ClassObject *clazz_) */ #define DVM_OBJECT_INIT(obj, clazz_) \ do { (obj)->clazz = (clazz_); DVM_LOCK_INIT(&(obj)->lock); } while (0) /* * Data objects have an Object header followed by their instance data. */ struct DataObject { Object obj; /* MUST be first item */ /* variable #of u4 slots; u8 uses 2 slots */ u4 instanceData[1]; }; /* * Strings are used frequently enough that we may want to give them their * own unique type. * * Using a dedicated type object to access the instance data provides a * performance advantage but makes the java/lang/String.java implementation * fragile. * * Currently this is just equal to DataObject, and we pull the fields out * like we do for any other object. */ struct StringObject { Object obj; /* MUST be first item */ /* variable #of u4 slots; u8 uses 2 slots */ u4 instanceData[1]; }; /* * Array objects have these additional fields. * * We don't currently store the size of each element. Usually it's implied * by the instruction. If necessary, the width can be derived from * the first char of obj->clazz->name. */ struct ArrayObject { Object obj; /* MUST be first item */ /* number of elements; immutable after init */ u4 length; /* * Array contents; actual size is (length * sizeof(type)). This is * declared as u8 so that the compiler inserts any necessary padding * (e.g. for EABI); the actual allocation may be smaller than 8 bytes. */ u8 contents[1]; }; /* * For classes created early and thus probably in the zygote, the * InitiatingLoaderList is kept in gDvm. Later classes use the structure in * Object Class. This helps keep zygote pages shared. */ struct InitiatingLoaderList { /* a list of initiating loader Objects; grown and initialized on demand */ Object** initiatingLoaders; /* count of loaders in the above list */ int initiatingLoaderCount; }; /* * This defines the amount of space we leave for field slots in the * java.lang.Class definition. If we alter the class to have more than * this many fields, the VM will abort at startup. */ #define CLASS_FIELD_SLOTS 4 /* * Class objects have many additional fields. This is used for both * classes and interfaces, including synthesized classes (arrays and * primitive types). * * Class objects are unusual in that they have some fields allocated with * the system malloc (or LinearAlloc), rather than on the GC heap. This is * handy during initialization, but does require special handling when * discarding java.lang.Class objects. * * The separation of methods (direct vs. virtual) and fields (class vs. * instance) used in Dalvik works out pretty well. The only time it's * annoying is when enumerating or searching for things with reflection. */ struct ClassObject { Object obj; /* MUST be first item */ /* leave space for instance data; we could access fields directly if we freeze the definition of java/lang/Class */ u4 instanceData[CLASS_FIELD_SLOTS]; /* UTF-8 descriptor for the class; from constant pool, or on heap if generated ("[C") */ const char* descriptor; char* descriptorAlloc; /* access flags; low 16 bits are defined by VM spec */ u4 accessFlags; /* VM-unique class serial number, nonzero, set very early */ u4 serialNumber; /* DexFile from which we came; needed to resolve constant pool entries */ /* (will be NULL for VM-generated, e.g. arrays and primitive classes) */ DvmDex* pDvmDex; /* state of class initialization */ ClassStatus status; /* if class verify fails, we must return same error on subsequent tries */ ClassObject* verifyErrorClass; /* threadId, used to check for recursive <clinit> invocation */ u4 initThreadId; /* * Total object size; used when allocating storage on gc heap. (For * interfaces and abstract classes this will be zero.) */ size_t objectSize; /* arrays only: class object for base element, for instanceof/checkcast (for String[][][], this will be String) */ ClassObject* elementClass; /* class object representing an array of this class; set on first use */ ClassObject* arrayClass; /* arrays only: number of dimensions, e.g. int[][] is 2 */ int arrayDim; /* primitive type index, or PRIM_NOT (-1); set for generated prim classes */ PrimitiveType primitiveType; /* superclass, or NULL if this is java.lang.Object */ ClassObject* super; /* defining class loader, or NULL for the "bootstrap" system loader */ Object* classLoader; /* initiating class loader list */ /* NOTE: for classes with low serialNumber, these are unused, and the values are kept in a table in gDvm. */ InitiatingLoaderList initiatingLoaderList; /* array of interfaces this class implements directly */ int interfaceCount; ClassObject** interfaces; /* static, private, and <init> methods */ int directMethodCount; Method* directMethods; /* virtual methods defined in this class; invoked through vtable */ int virtualMethodCount; Method* virtualMethods; /* * Virtual method table (vtable), for use by "invoke-virtual". The * vtable from the superclass is copied in, and virtual methods from * our class either replace those from the super or are appended. */ int vtableCount; Method** vtable; /* * Interface table (iftable), one entry per interface supported by * this class. That means one entry for each interface we support * directly, indirectly via superclass, or indirectly via * superinterface. This will be null if neither we nor our superclass * implement any interfaces. * * Why we need this: given "class Foo implements Face", declare * "Face faceObj = new Foo()". Invoke faceObj.blah(), where "blah" is * part of the Face interface. We can't easily use a single vtable. * * For every interface a concrete class implements, we create a list of * virtualMethod indices for the methods in the interface. */ int iftableCount; InterfaceEntry* iftable; /* * The interface vtable indices for iftable get stored here. By placing * them all in a single pool for each class that implements interfaces, * we decrease the number of allocations. */ int ifviPoolCount; int* ifviPool; /* static fields */ int sfieldCount; StaticField* sfields; /* instance fields * * These describe the layout of the contents of a DataObject-compatible * Object. Note that only the fields directly defined by this class * are listed in ifields; fields defined by a superclass are listed * in the superclass's ClassObject.ifields. * * All instance fields that refer to objects are guaranteed to be * at the beginning of the field list. ifieldRefCount specifies * the number of reference fields. */ int ifieldCount; int ifieldRefCount; // number of fields that are object refs InstField* ifields; /* bitmap of offsets of ifields */ u4 refOffsets; /* source file name, if known */ const char* sourceFile; }; /* * A method. We create one of these for every method in every class * we load, so try to keep the size to a minimum. * * Much of this comes from and could be accessed in the data held in shared * memory. We hold it all together here for speed. Everything but the * pointers could be held in a shared table generated by the optimizer; * if we're willing to convert them to offsets and take the performance * hit (e.g. "meth->insns" becomes "baseAddr + meth->insnsOffset") we * could move everything but "nativeFunc". */ struct Method { /* the class we are a part of */ ClassObject* clazz; /* access flags; low 16 bits are defined by spec (could be u2?) */ u4 accessFlags; /* * For concrete virtual methods, this is the offset of the method * in "vtable". * * For abstract methods in an interface class, this is the offset * of the method in "iftable[n]->methodIndexArray". */ u2 methodIndex; /* * Method bounds; not needed for an abstract method. * * For a native method, we compute the size of the argument list, and * set "insSize" and "registerSize" equal to it. */ u2 registersSize; /* ins + locals */ u2 outsSize; u2 insSize; /* method name, e.g. "<init>" or "eatLunch" */ const char* name; /* * Method prototype descriptor string (return and argument types). * * TODO: This currently must specify the DexFile as well as the proto_ids * index, because generated Proxy classes don't have a DexFile. We can * remove the DexFile* and reduce the size of this struct if we generate * a DEX for proxies. */ DexProto prototype; /* short-form method descriptor string */ const char* shorty; /* * The remaining items are not used for abstract or native methods. * (JNI is currently hijacking "insns" as a function pointer, set * after the first call. For internal-native this stays null.) */ /* the actual code */ const u2* insns; /* instructions, in memory-mapped .dex */ /* cached JNI argument and return-type hints */ int jniArgInfo; /* * Native method ptr; could be actual function or a JNI bridge. We * don't currently discriminate between DalvikBridgeFunc and * DalvikNativeFunc; the former takes an argument superset (i.e. two * extra args) which will be ignored. If necessary we can use * insns==NULL to detect JNI bridge vs. internal native. */ DalvikBridgeFunc nativeFunc; /* * Register map data, if available. This will point into the DEX file * if the data was computed during pre-verification, or into the * linear alloc area if not. */ const RegisterMap* registerMap; #ifdef WITH_PROFILER bool inProfile; #endif #ifdef WITH_DEBUGGER short debugBreakpointCount; #endif }; /* * Generic field header. We pass this around when we want a generic Field * pointer (e.g. for reflection stuff). Testing the accessFlags for * ACC_STATIC allows a proper up-cast. */ struct Field { ClassObject* clazz; /* class in which the field is declared */ const char* name; const char* signature; /* e.g. "I", "[C", "Landroid/os/Debug;" */ u4 accessFlags; #ifdef PROFILE_FIELD_ACCESS u4 gets; u4 puts; #endif }; /* * Static field. */ struct StaticField { Field field; /* MUST be first item */ JValue value; /* initially set from DEX for primitives */ }; /* * Instance field. */ struct InstField { Field field; /* MUST be first item */ /* * This field indicates the byte offset from the beginning of the * (Object *) to the actual instance data; e.g., byteOffset==0 is * the same as the object pointer (bug!), and byteOffset==4 is 4 * bytes farther. */ int byteOffset; }; /* * Find a method within a class. The superclass is not searched. */ Method* dvmFindDirectMethodByDescriptor(const ClassObject* clazz, const char* methodName, const char* signature); Method* dvmFindVirtualMethodByDescriptor(const ClassObject* clazz, const char* methodName, const char* signature); Method* dvmFindVirtualMethodByName(const ClassObject* clazz, const char* methodName); Method* dvmFindDirectMethod(const ClassObject* clazz, const char* methodName, const DexProto* proto); Method* dvmFindVirtualMethod(const ClassObject* clazz, const char* methodName, const DexProto* proto); /* * Find a method within a class hierarchy. */ Method* dvmFindDirectMethodHierByDescriptor(const ClassObject* clazz, const char* methodName, const char* descriptor); Method* dvmFindVirtualMethodHierByDescriptor(const ClassObject* clazz, const char* methodName, const char* signature); Method* dvmFindDirectMethodHier(const ClassObject* clazz, const char* methodName, const DexProto* proto); Method* dvmFindVirtualMethodHier(const ClassObject* clazz, const char* methodName, const DexProto* proto); Method* dvmFindMethodHier(const ClassObject* clazz, const char* methodName, const DexProto* proto); /* * Find the implementation of "meth" in "clazz". * * Returns NULL and throws an exception if not found. */ const Method* dvmGetVirtualizedMethod(const ClassObject* clazz, const Method* meth); /* * Get the source file associated with a method. */ const char* dvmGetMethodSourceFile(const Method* meth); /* * Find a field within a class. The superclass is not searched. */ InstField* dvmFindInstanceField(const ClassObject* clazz, const char* fieldName, const char* signature); StaticField* dvmFindStaticField(const ClassObject* clazz, const char* fieldName, const char* signature); /* * Find a field in a class/interface hierarchy. */ InstField* dvmFindInstanceFieldHier(const ClassObject* clazz, const char* fieldName, const char* signature); StaticField* dvmFindStaticFieldHier(const ClassObject* clazz, const char* fieldName, const char* signature); Field* dvmFindFieldHier(const ClassObject* clazz, const char* fieldName, const char* signature); /* * Find a field and return the byte offset from the object pointer. Only * searches the specified class, not the superclass. * * Returns -1 on failure. */ INLINE int dvmFindFieldOffset(const ClassObject* clazz, const char* fieldName, const char* signature) { InstField* pField = dvmFindInstanceField(clazz, fieldName, signature); if (pField == NULL) return -1; else return pField->byteOffset; } /* * Field access functions. Pass in the word offset from Field->byteOffset. * * We guarantee that long/double field data is 64-bit aligned, so it's safe * to access them with ldrd/strd on ARM. * * The VM treats all fields as 32 or 64 bits, so the field set functions * write 32 bits even if the underlying type is smaller. */ #define BYTE_OFFSET(_ptr, _offset) ((void*) (((u1*)(_ptr)) + (_offset))) INLINE JValue* dvmFieldPtr(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset)); } INLINE bool dvmGetFieldBoolean(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->z; } INLINE s1 dvmGetFieldByte(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->b; } INLINE s2 dvmGetFieldShort(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->s; } INLINE u2 dvmGetFieldChar(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->c; } INLINE s4 dvmGetFieldInt(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->i; } INLINE s8 dvmGetFieldLong(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->j; } INLINE float dvmGetFieldFloat(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->f; } INLINE double dvmGetFieldDouble(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->d; } INLINE Object* dvmGetFieldObject(const Object* obj, int offset) { return ((JValue*)BYTE_OFFSET(obj, offset))->l; } INLINE void dvmSetFieldBoolean(Object* obj, int offset, bool val) { ((JValue*)BYTE_OFFSET(obj, offset))->i = val; } INLINE void dvmSetFieldByte(Object* obj, int offset, s1 val) { ((JValue*)BYTE_OFFSET(obj, offset))->i = val; } INLINE void dvmSetFieldShort(Object* obj, int offset, s2 val) { ((JValue*)BYTE_OFFSET(obj, offset))->i = val; } INLINE void dvmSetFieldChar(Object* obj, int offset, u2 val) { ((JValue*)BYTE_OFFSET(obj, offset))->i = val; } INLINE void dvmSetFieldInt(Object* obj, int offset, s4 val) { ((JValue*)BYTE_OFFSET(obj, offset))->i = val; } INLINE void dvmSetFieldLong(Object* obj, int offset, s8 val) { ((JValue*)BYTE_OFFSET(obj, offset))->j = val; } INLINE void dvmSetFieldFloat(Object* obj, int offset, float val) { ((JValue*)BYTE_OFFSET(obj, offset))->f = val; } INLINE void dvmSetFieldDouble(Object* obj, int offset, double val) { ((JValue*)BYTE_OFFSET(obj, offset))->d = val; } INLINE void dvmSetFieldObject(Object* obj, int offset, Object* val) { ((JValue*)BYTE_OFFSET(obj, offset))->l = val; } /* * Static field access functions. */ INLINE JValue* dvmStaticFieldPtr(const StaticField* sfield) { return (JValue*)&sfield->value; } INLINE bool dvmGetStaticFieldBoolean(const StaticField* sfield) { return sfield->value.z; } INLINE s1 dvmGetStaticFieldByte(const StaticField* sfield) { return sfield->value.b; } INLINE s2 dvmGetStaticFieldShort(const StaticField* sfield) { return sfield->value.s; } INLINE u2 dvmGetStaticFieldChar(const StaticField* sfield) { return sfield->value.c; } INLINE s4 dvmGetStaticFieldInt(const StaticField* sfield) { return sfield->value.i; } INLINE s8 dvmGetStaticFieldLong(const StaticField* sfield) { return sfield->value.j; } INLINE float dvmGetStaticFieldFloat(const StaticField* sfield) { return sfield->value.f; } INLINE double dvmGetStaticFieldDouble(const StaticField* sfield) { return sfield->value.d; } INLINE Object* dvmGetStaticFieldObject(const StaticField* sfield) { return sfield->value.l; } INLINE void dvmSetStaticFieldBoolean(StaticField* sfield, bool val) { sfield->value.i = val; } INLINE void dvmSetStaticFieldByte(StaticField* sfield, s1 val) { sfield->value.i = val; } INLINE void dvmSetStaticFieldShort(StaticField* sfield, s2 val) { sfield->value.i = val; } INLINE void dvmSetStaticFieldChar(StaticField* sfield, u2 val) { sfield->value.i = val; } INLINE void dvmSetStaticFieldInt(StaticField* sfield, s4 val) { sfield->value.i = val; } INLINE void dvmSetStaticFieldLong(StaticField* sfield, s8 val) { sfield->value.j = val; } INLINE void dvmSetStaticFieldFloat(StaticField* sfield, float val) { sfield->value.f = val; } INLINE void dvmSetStaticFieldDouble(StaticField* sfield, double val) { sfield->value.d = val; } INLINE void dvmSetStaticFieldObject(StaticField* sfield, Object* val) { sfield->value.l = val; } /* * Helpers. */ INLINE bool dvmIsPublicMethod(const Method* method) { return (method->accessFlags & ACC_PUBLIC) != 0; } INLINE bool dvmIsPrivateMethod(const Method* method) { return (method->accessFlags & ACC_PRIVATE) != 0; } INLINE bool dvmIsStaticMethod(const Method* method) { return (method->accessFlags & ACC_STATIC) != 0; } INLINE bool dvmIsSynchronizedMethod(const Method* method) { return (method->accessFlags & ACC_SYNCHRONIZED) != 0; } INLINE bool dvmIsDeclaredSynchronizedMethod(const Method* method) { return (method->accessFlags & ACC_DECLARED_SYNCHRONIZED) != 0; } INLINE bool dvmIsFinalMethod(const Method* method) { return (method->accessFlags & ACC_FINAL) != 0; } INLINE bool dvmIsNativeMethod(const Method* method) { return (method->accessFlags & ACC_NATIVE) != 0; } INLINE bool dvmIsAbstractMethod(const Method* method) { return (method->accessFlags & ACC_ABSTRACT) != 0; } INLINE bool dvmIsMirandaMethod(const Method* method) { return (method->accessFlags & ACC_MIRANDA) != 0; } INLINE bool dvmIsConstructorMethod(const Method* method) { return *method->name == '<'; } /* Dalvik puts private, static, and constructors into non-virtual table */ INLINE bool dvmIsDirectMethod(const Method* method) { return dvmIsPrivateMethod(method) || dvmIsStaticMethod(method) || dvmIsConstructorMethod(method); } /* Get whether the given method has associated bytecode. This is the * case for methods which are neither native nor abstract. */ INLINE bool dvmIsBytecodeMethod(const Method* method) { return (method->accessFlags & (ACC_NATIVE | ACC_ABSTRACT)) == 0; } INLINE bool dvmIsProtectedField(const Field* field) { return (field->accessFlags & ACC_PROTECTED) != 0; } INLINE bool dvmIsStaticField(const Field* field) { return (field->accessFlags & ACC_STATIC) != 0; } INLINE bool dvmIsFinalField(const Field* field) { return (field->accessFlags & ACC_FINAL) != 0; } INLINE bool dvmIsInterfaceClass(const ClassObject* clazz) { return (clazz->accessFlags & ACC_INTERFACE) != 0; } INLINE bool dvmIsPublicClass(const ClassObject* clazz) { return (clazz->accessFlags & ACC_PUBLIC) != 0; } INLINE bool dvmIsFinalClass(const ClassObject* clazz) { return (clazz->accessFlags & ACC_FINAL) != 0; } INLINE bool dvmIsAbstractClass(const ClassObject* clazz) { return (clazz->accessFlags & ACC_ABSTRACT) != 0; } INLINE bool dvmIsAnnotationClass(const ClassObject* clazz) { return (clazz->accessFlags & ACC_ANNOTATION) != 0; } INLINE bool dvmIsPrimitiveClass(const ClassObject* clazz) { return clazz->primitiveType != PRIM_NOT; } /* linked, here meaning prepared and resolved */ INLINE bool dvmIsClassLinked(const ClassObject* clazz) { return clazz->status >= CLASS_RESOLVED; } /* has class been verified? */ INLINE bool dvmIsClassVerified(const ClassObject* clazz) { return clazz->status >= CLASS_VERIFIED; } /* * Get the associated code struct for a method. This returns NULL * for non-bytecode methods. */ INLINE const DexCode* dvmGetMethodCode(const Method* meth) { if (dvmIsBytecodeMethod(meth)) { /* * The insns field for a bytecode method actually points at * &(DexCode.insns), so we can subtract back to get at the * DexCode in front. */ return (const DexCode*) (((const u1*) meth->insns) - offsetof(DexCode, insns)); } else { return NULL; } } /* * Get the size of the insns associated with a method. This returns 0 * for non-bytecode methods. */ INLINE u4 dvmGetMethodInsnsSize(const Method* meth) { const DexCode* pCode = dvmGetMethodCode(meth); return (pCode == NULL) ? 0 : pCode->insnsSize; } /* debugging */ void dvmDumpObject(const Object* obj); #endif /*_DALVIK_OO_OBJECT*/