#pragma once #include "il2cpp-codegen-common-small.h" #include "il2cpp-object-internals.h" #include "il2cpp-debug-metadata.h" #include "gc/GarbageCollector.h" #include "gc/WriteBarrier.h" #include "os/Memory.h" #include "vm/Array.h" #include "vm/Exception.h" #include "vm/Object.h" #include "vm/PlatformInvoke.h" #include "vm/ScopedThreadAttacher.h" #include "vm/String.h" #include "vm/Runtime.h" #include "vm/Thread.h" #include "vm/Type.h" #include "vm/TypeUniverse.h" #include "vm-utils/Finally.h" #include "vm-utils/icalls/mscorlib/System.Threading/Interlocked.h" #include "vm-utils/VmThreadUtils.h" #include "utils/ExceptionSupportStack.h" #include "utils/MemoryUtils.h" #include "utils/StringView.h" #include struct Exception_t; struct Delegate_t; struct MulticastDelegate_t; struct String_t; struct Type_t; typedef Il2CppObject RuntimeObject; typedef Il2CppArray RuntimeArray; #if IL2CPP_COMPILER_MSVC #define DEFAULT_CALL STDCALL #else #define DEFAULT_CALL #endif inline RuntimeObject* il2cpp_codegen_object_new(size_t size, TinyType* typeInfo) { return (RuntimeObject*)tiny::vm::Object::New(size, typeInfo); } inline Il2CppObject* Box(TinyType* type, void* value, size_t size) { COMPILE_TIME_CONST size_t alignedObjectSize = IL2CPP_ALIGNED_OBJECT_SIZE; Il2CppObject* obj = il2cpp_codegen_object_new(size + alignedObjectSize, type); memcpy(reinterpret_cast(obj) + alignedObjectSize, value, size); il2cpp::gc::GarbageCollector::SetWriteBarrier((void**)(reinterpret_cast(obj) + alignedObjectSize), size); return obj; } static intptr_t align(intptr_t x, size_t alignment) { return (x + alignment - 1) & ~(alignment - 1); } template static uint8_t* NullableValueField(void* storage) { // The hasValue field is the first one in the Nullable struct. It is a one byte Boolean. // We're trying to get the address of the value field in the Nullable struct, so offset // past the hasValue field, then offset to the alignment value of the type stored in the // Nullable struct. uint8_t* byteAfterhasValueField = static_cast(storage) + 1; size_t alignmentOfArgumentType = alignof(ArgumentType); intptr_t offsetToAlign = 0; if ((intptr_t)byteAfterhasValueField % alignmentOfArgumentType != 0) offsetToAlign = alignmentOfArgumentType - 1; return byteAfterhasValueField + offsetToAlign; } template inline Il2CppObject* BoxNullable(TinyType* type, NullableType* value) { /* From ECMA-335, I.8.2.4 Boxing and unboxing of values: All value types have an operation called box. Boxing a value of any value type produces its boxed value; i.e., a value of the corresponding boxed type containing a bitwise copy of the original value. If the value type is a nullable type defined as an instantiation of the value type System.Nullable the result is a null reference or bitwise copy of its Value property of type T, depending on its HasValue property (false and true, respectively). */ bool hasValue = *reinterpret_cast(reinterpret_cast(value)); if (!hasValue) return NULL; uint32_t valueSize = sizeof(ArgumentType); return Box(type, NullableValueField(value), valueSize); } inline void* UnBox(Il2CppObject* obj) { return tiny::vm::Object::Unbox(obj); } inline void* UnBox(Il2CppObject* obj, TinyType* expectedBoxedType) { COMPILE_TIME_CONST size_t alignedObjectSize = IL2CPP_ALIGNED_OBJECT_SIZE; if (obj->klass == expectedBoxedType) return reinterpret_cast(obj) + alignedObjectSize; tiny::vm::Exception::RaiseInvalidCastException(obj, expectedBoxedType); return NULL; } template inline void UnBoxNullable(Il2CppObject* obj, TinyType* expectedBoxedClass, void* storage) { // We assume storage is on the stack, if not we'll need a write barrier IL2CPP_ASSERT_STACK_PTR(storage); // We only need to do type checks if obj is not null // Unboxing null nullable is perfectly valid and returns an instance that has no value if (obj != NULL) { if (obj->klass != expectedBoxedClass) tiny::vm::Exception::RaiseInvalidCastException(obj, expectedBoxedClass); } uint32_t valueSize = sizeof(ArgumentType); if (obj == NULL) { memset(NullableValueField(storage), 0, valueSize); *(static_cast(storage)) = false; } else { memcpy(NullableValueField(storage), UnBox(obj), valueSize); *(static_cast(storage)) = true; } } inline bool il2cpp_codegen_is_fake_boxed_object(RuntimeObject* object) { return false; } template struct Il2CppFakeBox : RuntimeObject { alignas(IL2CPP_ALIGNED_OBJECT_SIZE) T m_Value; Il2CppFakeBox(TinyType* boxedType, T* value) { klass = boxedType; m_Value = *value; } }; // Exception support macros #define IL2CPP_PUSH_ACTIVE_EXCEPTION(Exception) \ __active_exceptions.push(Exception) #define IL2CPP_POP_ACTIVE_EXCEPTION() \ __active_exceptions.pop() #define IL2CPP_GET_ACTIVE_EXCEPTION(ExcType) \ (ExcType)__active_exceptions.top() #define IL2CPP_LEAVE(Offset, Target) \ __leave_targets.push(Offset); \ goto Target; #define IL2CPP_END_FINALLY(Id) \ goto __CLEANUP_ ## Id; #define IL2CPP_CLEANUP(Id) \ __CLEANUP_ ## Id: #define IL2CPP_RETHROW_IF_UNHANDLED(ExcType) \ if(__last_unhandled_exception) { \ ExcType _tmp_exception_local = __last_unhandled_exception; \ __last_unhandled_exception = 0; \ il2cpp_codegen_raise_exception(_tmp_exception_local); \ } #define IL2CPP_JUMP_TBL(Offset, Target) \ if(!__leave_targets.empty() && __leave_targets.top() == Offset) { \ __leave_targets.pop(); \ goto Target; \ } #define IL2CPP_END_CLEANUP(Offset, Target) \ if(!__leave_targets.empty() && __leave_targets.top() == Offset) \ goto Target; inline void il2cpp_codegen_memory_barrier() { // The joy of singlethreading } inline TinyType* LookupTypeInfoFromCursor(uint32_t typeCursor) { return reinterpret_cast(Il2CppGetTinyTypeUniverse() + typeCursor); } inline String_t* LookupStringFromCursor(uint32_t stringCursor) { return reinterpret_cast(Il2CppGetStringLiterals() + stringCursor); } inline bool HasParentOrIs(const TinyType* type, const TinyType* targetType) { IL2CPP_ASSERT(type != NULL); IL2CPP_ASSERT(targetType != NULL); if (type == targetType) return true; uint16_t typeHierarchySize = type->typeHierarchySize; uint16_t targetTypeHierarchySize = targetType->typeHierarchySize; if (typeHierarchySize <= targetTypeHierarchySize) return false; if (type->GetTypeHierarchy()[targetTypeHierarchySize] == targetType) return true; return false; } inline bool IsAssignableFrom(const TinyType* klass, const TinyType* oklass) { if (HasParentOrIs(oklass, klass)) return true; const TinyType* const* interfaces = oklass->GetInterfaces(); uint8_t size = oklass->interfacesSize; for (uint8_t i = 0; i != size; i++) { if (interfaces[i] == klass) return true; } return false; } inline Il2CppObject* IsInst(Il2CppObject* obj, TinyType* klass) { if (!obj) return NULL; TinyType* objClass = obj->klass; if (IsAssignableFrom(klass, objClass)) return obj; return NULL; } inline RuntimeObject* IsInstClass(RuntimeObject* obj, TinyType* targetType) { IL2CPP_ASSERT(targetType != NULL); if (!obj) return NULL; if (HasParentOrIs(obj->klass, targetType)) return obj; return NULL; } inline RuntimeObject* IsInstSealed(RuntimeObject* obj, TinyType* targetType) { if (!obj) return NULL; // optimized version to compare sealed classes return (obj->klass == targetType ? obj : NULL); } inline RuntimeObject* Castclass(RuntimeObject* obj, TinyType* targetType) { if (!obj) return NULL; RuntimeObject* result = IsInst(obj, targetType); if (result) return result; tiny::vm::Exception::RaiseInvalidCastException(obj, targetType); return NULL; } inline RuntimeObject* CastclassSealed(RuntimeObject *obj, TinyType* targetType) { if (!obj) return NULL; RuntimeObject* result = IsInstSealed(obj, targetType); if (result) return result; tiny::vm::Exception::RaiseInvalidCastException(obj, targetType); return NULL; } inline RuntimeObject* CastclassClass(RuntimeObject *obj, TinyType* targetType) { if (!obj) return NULL; RuntimeObject* result = IsInstClass(obj, targetType); if (result) return result; tiny::vm::Exception::RaiseInvalidCastException(obj, targetType); return NULL; } inline bool il2cpp_codegen_is_assignable_from(Type_t* left, Type_t* right) { if (right == NULL) return false; return IsAssignableFrom(reinterpret_cast(left)->typeHandle, reinterpret_cast(right)->typeHandle); } // il2cpp generates direct calls to this specific name inline bool il2cpp_codegen_class_is_assignable_from(TinyType* left, TinyType* right) { if (right == NULL) return false; return IsAssignableFrom(left, right); } inline TinyType* il2cpp_codegen_object_class(RuntimeObject *obj) { return obj->klass; } inline String_t* il2cpp_codegen_string_new_length(int length) { return reinterpret_cast(tiny::vm::String::NewLen(length)); } inline String_t* il2cpp_codegen_string_new_utf16(const il2cpp::utils::StringView& str) { return (String_t*)tiny::vm::String::NewLen(str.Str(), static_cast(str.Length())); } template inline Il2CppArray* SZArrayNew(TinyType* arrayType, uint32_t elementSize, uint32_t arrayLength) { return tiny::vm::Array::New(arrayType, elementSize, arrayLength); } template inline Il2CppMultidimensionalArray* GenArrayNew(TinyType* arrayType, uint32_t elementSize, il2cpp_array_size_t(&dimensions)[N]) { il2cpp_array_size_t arrayLength = elementSize; for (uint32_t i = 0; i < N; i++) arrayLength *= dimensions[i]; Il2CppMultidimensionalArray* genArray = static_cast*>(il2cpp_codegen_object_new(sizeof(Il2CppMultidimensionalArray) + elementSize * arrayLength, arrayType)); for (uint32_t i = 0; i < N; i++) genArray->bounds[i] = dimensions[i]; return genArray; } inline int32_t il2cpp_codegen_get_array_length(Il2CppArray* genArray, int32_t dimension) { return static_cast(reinterpret_cast*>(genArray)->bounds[dimension]); } inline Type_t* il2cpp_codegen_get_type(Il2CppObject* obj) { return reinterpret_cast(tiny::vm::Type::GetTypeFromHandle((intptr_t)obj->klass)); } inline Type_t* il2cpp_codegen_get_base_type(const Type_t* t) { const Il2CppReflectionType* type = reinterpret_cast(t); const TinyType* tinyType = type->typeHandle; uint8_t typeHierarchySize = tinyType->typeHierarchySize; if (typeHierarchySize == 0) return NULL; return const_cast(reinterpret_cast(tiny::vm::Type::GetTypeFromHandle((intptr_t)(tinyType->GetTypeHierarchy()[typeHierarchySize - 1])))); } inline MulticastDelegate_t* il2cpp_codegen_create_combined_delegate(Type_t* type, Il2CppArray* delegates, int delegateCount) { Il2CppMulticastDelegate* result = static_cast(il2cpp_codegen_object_new(sizeof(Il2CppMulticastDelegate), const_cast(reinterpret_cast(type)->typeHandle))); IL2CPP_OBJECT_SETREF(result, delegates, delegates); IL2CPP_OBJECT_SETREF(result, m_target, result); result->delegateCount = delegateCount; result->invoke_impl = il2cpp_array_get(delegates, Il2CppDelegate*, 0)->multicast_invoke_impl; result->multicast_invoke_impl = result->invoke_impl; return reinterpret_cast(result); } inline const VirtualInvokeData& il2cpp_codegen_get_virtual_invoke_data(Il2CppMethodSlot slot, const RuntimeObject* obj) { Assert(slot != kInvalidIl2CppMethodSlot && "il2cpp_codegen_get_virtual_invoke_data got called on a non-virtual method"); return obj->klass->GetVTable()[slot]; } inline const VirtualInvokeData& il2cpp_codegen_get_interface_invoke_data(Il2CppMethodSlot slot, const Il2CppObject* obj, TinyType* declaringInterface) { for (int i = 0; i < obj->klass->interfacesSize; ++i) { if (obj->klass->GetInterfaces()[i] == declaringInterface) return il2cpp_codegen_get_virtual_invoke_data((Il2CppMethodSlot)obj->klass->GetInterfaceOffsets()[i] + slot, obj); } tiny::vm::Exception::Raise(); IL2CPP_UNREACHABLE; } inline Exception_t* il2cpp_codegen_get_overflow_exception() { return NULL; } inline Exception_t* il2cpp_codegen_get_argument_exception(const char* param, const char* msg) { return NULL; } inline Exception_t* il2cpp_codegen_get_missing_method_exception(const char* msg) { return NULL; } NORETURN inline void il2cpp_codegen_no_return() { IL2CPP_UNREACHABLE; } NORETURN inline void il2cpp_codegen_raise_exception(Exception_t* ex, RuntimeMethod* lastManagedFrame) { tiny::vm::Exception::Raise((Il2CppException*)ex); IL2CPP_UNREACHABLE; } NORETURN inline void il2cpp_codegen_raise_exception(const char* message) { tiny::vm::Exception::Raise(message); IL2CPP_UNREACHABLE; } NORETURN void il2cpp_codegen_raise_generic_virtual_method_exception(const char* methodFullName); inline Exception_t* il2cpp_codegen_get_marshal_directive_exception(const char* msg) { return NULL; } #define IL2CPP_RAISE_NULL_REFERENCE_EXCEPTION() \ do {\ il2cpp_codegen_raise_null_reference_exception();\ IL2CPP_UNREACHABLE;\ } while (0) #define IL2CPP_RAISE_MANAGED_EXCEPTION(ex, lastManagedFrame) \ do {\ il2cpp_codegen_raise_exception(ex);\ IL2CPP_UNREACHABLE;\ } while (0) #define IL2CPP_RETHROW_MANAGED_EXCEPTION(ex) \ do {\ il2cpp_codegen_raise_exception(ex);\ IL2CPP_UNREACHABLE;\ } while (0) #if _DEBUG #define IL2CPP_ARRAY_BOUNDS_CHECK(index, length) \ do { \ if (((uint32_t)(index)) >= ((uint32_t)length)) tiny::vm::Exception::RaiseGetIndexOutOfRangeException(); \ } while (0) #else #define IL2CPP_ARRAY_BOUNDS_CHECK(index, length) #endif inline void ArrayElementTypeCheck(Il2CppArray* array, void* value) { } template inline FunctionPointerType il2cpp_codegen_resolve_pinvoke(const Il2CppNativeChar(&nativeDynamicLibrary)[dynamicLibraryLength], const char(&entryPoint)[entryPointLength], Il2CppCallConvention callingConvention, Il2CppCharSet charSet, int parameterSize, bool isNoMangle) { const PInvokeArguments pinvokeArgs = { il2cpp::utils::StringView(nativeDynamicLibrary), il2cpp::utils::StringView(entryPoint), callingConvention, charSet, parameterSize, isNoMangle }; return reinterpret_cast(tiny::vm::PlatformInvoke::Resolve(pinvokeArgs)); } template inline T* il2cpp_codegen_marshal_allocate() { return static_cast(tiny::vm::PlatformInvoke::MarshalAllocate(sizeof(T))); } inline char* il2cpp_codegen_marshal_string(String_t* string) { if (string == NULL) return NULL; Il2CppString* managedString = ((Il2CppString*)string); return tiny::vm::PlatformInvoke::MarshalCSharpStringToCppString(managedString->chars, managedString->length); } inline void il2cpp_codegen_marshal_string_fixed(String_t* string, char* buffer, uint32_t numberOfCharacters) { IL2CPP_ASSERT(numberOfCharacters > 0); if (string == NULL) { *buffer = '\0'; return; } Il2CppString* managedString = ((Il2CppString*)string); tiny::vm::PlatformInvoke::MarshalCSharpStringToFixedCppStringBuffer(managedString->chars, managedString->length, buffer, numberOfCharacters); } inline Il2CppChar* il2cpp_codegen_marshal_wstring(String_t* string) { if (string == NULL) return NULL; Il2CppString* managedString = ((Il2CppString*)string); return tiny::vm::PlatformInvoke::MarshalCSharpStringToCppWString(managedString->chars, managedString->length); } inline void il2cpp_codegen_marshal_wstring_fixed(String_t* string, Il2CppChar* buffer, uint32_t numberOfCharacters) { IL2CPP_ASSERT(numberOfCharacters > 0); if (string == NULL) { *buffer = '\0'; return; } Il2CppString* managedString = ((Il2CppString*)string); tiny::vm::PlatformInvoke::MarshalCSharpStringToFixedCppWStringBuffer(managedString->chars, managedString->length, buffer, numberOfCharacters); } inline String_t* il2cpp_codegen_marshal_string_result(const char* value) { if (value == NULL) return NULL; return reinterpret_cast(tiny::vm::PlatformInvoke::MarshalCppStringToCSharpStringResult(value)); } inline String_t* il2cpp_codegen_marshal_wstring_result(const Il2CppChar* value) { if (value == NULL) return NULL; return reinterpret_cast(tiny::vm::PlatformInvoke::MarshalCppWStringToCSharpStringResult(value)); } template inline T* il2cpp_codegen_marshal_allocate_array(size_t length) { return static_cast(tiny::vm::PlatformInvoke::MarshalAllocate(sizeof(T) * length)); } inline void il2cpp_codegen_marshal_free(void* ptr) { tiny::vm::PlatformInvoke::MarshalFree(ptr); } inline String_t* il2cpp_codegen_marshal_ptr_to_string_ansi(intptr_t ptr) { return il2cpp_codegen_marshal_string_result(reinterpret_cast(ptr)); } inline intptr_t il2cpp_codegen_marshal_string_to_co_task_mem_ansi(String_t* ptr) { return reinterpret_cast(il2cpp_codegen_marshal_string(ptr)); } inline void il2cpp_codegen_marshal_string_free_co_task_mem(intptr_t ptr) { il2cpp_codegen_marshal_free(reinterpret_cast(ptr)); } template struct Il2CppReversePInvokeMethodHolder { Il2CppReversePInvokeMethodHolder(T** storageAddress) : m_LastValue(*storageAddress), m_StorageAddress(storageAddress) { } ~Il2CppReversePInvokeMethodHolder() { *m_StorageAddress = m_LastValue; } private: T* const m_LastValue; T** const m_StorageAddress; }; inline void* InterlockedExchangeImplRef(void** location, void* value) { return tiny::icalls::mscorlib::System::Threading::Interlocked::ExchangePointer(location, value); } template inline T InterlockedCompareExchangeImpl(T* location, T value, T comparand) { return (T)tiny::icalls::mscorlib::System::Threading::Interlocked::CompareExchange_T((void**)location, value, comparand); } template inline T InterlockedExchangeImpl(T* location, T value) { return (T)InterlockedExchangeImplRef((void**)location, value); } void il2cpp_codegen_stacktrace_push_frame(TinyStackFrameInfo& frame); void il2cpp_codegen_stacktrace_pop_frame(); struct StackTraceSentry { StackTraceSentry(const RuntimeMethod* method) : m_method(method) { TinyStackFrameInfo frame_info; frame_info.method = (TinyMethod*)method; il2cpp_codegen_stacktrace_push_frame(frame_info); } ~StackTraceSentry() { il2cpp_codegen_stacktrace_pop_frame(); } private: const RuntimeMethod* m_method; }; inline const RuntimeMethod* GetVirtualMethodInfo(RuntimeObject* pThis, Il2CppMethodSlot slot) { if (!pThis) tiny::vm::Exception::Raise(); return (const RuntimeMethod*)pThis->klass->GetVTable()[slot]; } inline void il2cpp_codegen_no_reverse_pinvoke_wrapper(const char* methodName, const char* reason) { std::string message = "No reverse pinvoke wrapper exists for method: '"; message += methodName; message += "' because "; message += reason; tiny::vm::Runtime::FailFast(message.c_str()); } #define IL2CPP_TINY_IS_INTERFACE 1 #define IL2CPP_TINY_IS_ABSTRACT 2 #define IL2CPP_TINY_IS_POINTER 4 inline bool il2cpp_codegen_type_is_interface(Type_t* t) { const Il2CppReflectionType* type = reinterpret_cast(t); const TinyType* tinyType = type->typeHandle; if (IL2CPP_TINY_ADDITIONAL_TYPE_METADATA(tinyType->packedVtableSizeAndAdditionalTypeMetadata) & IL2CPP_TINY_IS_INTERFACE) return true; return false; } inline bool il2cpp_codegen_type_is_abstract(Type_t* t) { const Il2CppReflectionType* type = reinterpret_cast(t); const TinyType* tinyType = type->typeHandle; if (IL2CPP_TINY_ADDITIONAL_TYPE_METADATA(tinyType->packedVtableSizeAndAdditionalTypeMetadata) & IL2CPP_TINY_IS_ABSTRACT) return true; return false; } inline bool il2cpp_codegen_type_is_pointer(Type_t* t) { const Il2CppReflectionType* type = reinterpret_cast(t); const TinyType* tinyType = type->typeHandle; if (IL2CPP_TINY_ADDITIONAL_TYPE_METADATA(tinyType->packedVtableSizeAndAdditionalTypeMetadata) & IL2CPP_TINY_IS_POINTER) return true; return false; } template void GetGenericValueImpl(RuntimeArray* thisPtr, int32_t pos, T* value) { // GetGenericValueImpl is only called from the class libs internally and T is never a field IL2CPP_ASSERT_STACK_PTR(value); memcpy(value, il2cpp_array_addr_with_size(thisPtr, sizeof(T), pos), sizeof(T)); } template void SetGenericValueImpl(RuntimeArray* thisPtr, int32_t pos, T* value) { il2cpp_array_setrefwithsize(thisPtr, sizeof(T), pos, value); } void il2cpp_codegen_marshal_store_last_error(); template inline void* il2cpp_codegen_unsafe_cast(T* ptr) { return reinterpret_cast(ptr); }