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/*
* Copyright (C) 2011 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_RUNTIME_ART_METHOD_INL_H_
#define ART_RUNTIME_ART_METHOD_INL_H_
#include "art_method.h"
#include "art_field.h"
#include "base/logging.h"
#include "dex_file.h"
#include "dex_file-inl.h"
#include "gc_root-inl.h"
#include "mirror/class-inl.h"
#include "mirror/dex_cache.h"
#include "mirror/object-inl.h"
#include "mirror/object_array.h"
#include "oat.h"
#include "quick/quick_method_frame_info.h"
#include "read_barrier-inl.h"
#include "runtime-inl.h"
#include "utils.h"
namespace art {
inline mirror::Class* ArtMethod::GetDeclaringClassUnchecked() {
GcRootSource gc_root_source(this);
return declaring_class_.Read(&gc_root_source);
}
inline mirror::Class* ArtMethod::GetDeclaringClassNoBarrier() {
return declaring_class_.Read<kWithoutReadBarrier>();
}
inline mirror::Class* ArtMethod::GetDeclaringClass() {
mirror::Class* result = GetDeclaringClassUnchecked();
if (kIsDebugBuild) {
if (!IsRuntimeMethod()) {
CHECK(result != nullptr) << this;
CHECK(result->IsIdxLoaded() || result->IsErroneous())
<< result->GetStatus() << " " << PrettyClass(result);
} else {
CHECK(result == nullptr) << this;
}
}
return result;
}
inline void ArtMethod::SetDeclaringClass(mirror::Class* new_declaring_class) {
declaring_class_ = GcRoot<mirror::Class>(new_declaring_class);
}
inline uint32_t ArtMethod::GetAccessFlags() {
DCHECK(IsRuntimeMethod() || GetDeclaringClass()->IsIdxLoaded() ||
GetDeclaringClass()->IsErroneous());
return access_flags_;
}
inline uint16_t ArtMethod::GetMethodIndex() {
DCHECK(IsRuntimeMethod() || GetDeclaringClass()->IsResolved() ||
GetDeclaringClass()->IsErroneous());
return method_index_;
}
inline uint16_t ArtMethod::GetMethodIndexDuringLinking() {
return method_index_;
}
inline uint32_t ArtMethod::GetDexMethodIndex() {
DCHECK(IsRuntimeMethod() || GetDeclaringClass()->IsIdxLoaded() ||
GetDeclaringClass()->IsErroneous());
return dex_method_index_;
}
inline mirror::PointerArray* ArtMethod::GetDexCacheResolvedMethods() {
GcRootSource gc_root_source(this);
return dex_cache_resolved_methods_.Read(&gc_root_source);
}
inline ArtMethod* ArtMethod::GetDexCacheResolvedMethod(uint16_t method_index, size_t ptr_size) {
auto* method = GetDexCacheResolvedMethods()->GetElementPtrSize<ArtMethod*>(
method_index, ptr_size);
if (LIKELY(method != nullptr)) {
auto* declaring_class = method->GetDeclaringClass();
if (LIKELY(declaring_class == nullptr || !declaring_class->IsErroneous())) {
return method;
}
}
return nullptr;
}
inline void ArtMethod::SetDexCacheResolvedMethod(uint16_t method_idx, ArtMethod* new_method,
size_t ptr_size) {
DCHECK(new_method == nullptr || new_method->GetDeclaringClass() != nullptr);
GetDexCacheResolvedMethods()->SetElementPtrSize(method_idx, new_method, ptr_size);
}
inline bool ArtMethod::HasDexCacheResolvedMethods() {
return GetDexCacheResolvedMethods() != nullptr;
}
inline bool ArtMethod::HasSameDexCacheResolvedMethods(mirror::PointerArray* other_cache) {
return GetDexCacheResolvedMethods() == other_cache;
}
inline bool ArtMethod::HasSameDexCacheResolvedMethods(ArtMethod* other) {
return GetDexCacheResolvedMethods() == other->GetDexCacheResolvedMethods();
}
inline mirror::ObjectArray<mirror::Class>* ArtMethod::GetDexCacheResolvedTypes() {
GcRootSource gc_root_source(this);
return dex_cache_resolved_types_.Read(&gc_root_source);
}
template <bool kWithCheck>
inline mirror::Class* ArtMethod::GetDexCacheResolvedType(uint32_t type_index) {
mirror::Class* klass = kWithCheck ?
GetDexCacheResolvedTypes()->Get(type_index) :
GetDexCacheResolvedTypes()->GetWithoutChecks(type_index);
return (klass != nullptr && !klass->IsErroneous()) ? klass : nullptr;
}
inline bool ArtMethod::HasDexCacheResolvedTypes() {
return GetDexCacheResolvedTypes() != nullptr;
}
inline bool ArtMethod::HasSameDexCacheResolvedTypes(
mirror::ObjectArray<mirror::Class>* other_cache) {
return GetDexCacheResolvedTypes() == other_cache;
}
inline bool ArtMethod::HasSameDexCacheResolvedTypes(ArtMethod* other) {
return GetDexCacheResolvedTypes() == other->GetDexCacheResolvedTypes();
}
inline mirror::Class* ArtMethod::GetClassFromTypeIndex(uint16_t type_idx, bool resolve) {
mirror::Class* type = GetDexCacheResolvedType(type_idx);
if (type == nullptr && resolve) {
type = Runtime::Current()->GetClassLinker()->ResolveType(type_idx, this);
CHECK(type != nullptr || Thread::Current()->IsExceptionPending());
}
return type;
}
inline uint32_t ArtMethod::GetCodeSize() {
DCHECK(!IsRuntimeMethod() && !IsProxyMethod()) << PrettyMethod(this);
return GetCodeSize(EntryPointToCodePointer(GetEntryPointFromQuickCompiledCode()));
}
inline uint32_t ArtMethod::GetCodeSize(const void* code) {
if (code == nullptr) {
return 0u;
}
return reinterpret_cast<const OatQuickMethodHeader*>(code)[-1].code_size_;
}
inline bool ArtMethod::CheckIncompatibleClassChange(InvokeType type) {
switch (type) {
case kStatic:
return !IsStatic();
case kDirect:
return !IsDirect() || IsStatic();
case kVirtual: {
mirror::Class* methods_class = GetDeclaringClass();
return IsDirect() || (methods_class->IsInterface() && !IsMiranda());
}
case kSuper:
// Constructors and static methods are called with invoke-direct.
// Interface methods cannot be invoked with invoke-super.
return IsConstructor() || IsStatic() || GetDeclaringClass()->IsInterface();
case kInterface: {
mirror::Class* methods_class = GetDeclaringClass();
return IsDirect() || !(methods_class->IsInterface() || methods_class->IsObjectClass());
}
default:
LOG(FATAL) << "Unreachable - invocation type: " << type;
UNREACHABLE();
}
}
inline uint32_t ArtMethod::GetQuickOatCodeOffset() {
DCHECK(!Runtime::Current()->IsStarted());
return PointerToLowMemUInt32(GetEntryPointFromQuickCompiledCode());
}
inline void ArtMethod::SetQuickOatCodeOffset(uint32_t code_offset) {
DCHECK(!Runtime::Current()->IsStarted());
SetEntryPointFromQuickCompiledCode(reinterpret_cast<void*>(code_offset));
}
inline const uint8_t* ArtMethod::GetMappingTable(size_t pointer_size) {
const void* code_pointer = GetQuickOatCodePointer(pointer_size);
if (code_pointer == nullptr) {
return nullptr;
}
return GetMappingTable(code_pointer, pointer_size);
}
inline const uint8_t* ArtMethod::GetMappingTable(const void* code_pointer, size_t pointer_size) {
DCHECK(code_pointer != nullptr);
DCHECK_EQ(code_pointer, GetQuickOatCodePointer(pointer_size));
uint32_t offset =
reinterpret_cast<const OatQuickMethodHeader*>(code_pointer)[-1].mapping_table_offset_;
if (UNLIKELY(offset == 0u)) {
return nullptr;
}
return reinterpret_cast<const uint8_t*>(code_pointer) - offset;
}
inline const uint8_t* ArtMethod::GetVmapTable(size_t pointer_size) {
const void* code_pointer = GetQuickOatCodePointer(pointer_size);
if (code_pointer == nullptr) {
return nullptr;
}
return GetVmapTable(code_pointer, pointer_size);
}
inline const uint8_t* ArtMethod::GetVmapTable(const void* code_pointer, size_t pointer_size) {
CHECK(!IsOptimized(pointer_size)) << "Unimplemented vmap table for optimized compiler";
DCHECK(code_pointer != nullptr);
DCHECK_EQ(code_pointer, GetQuickOatCodePointer(pointer_size));
uint32_t offset =
reinterpret_cast<const OatQuickMethodHeader*>(code_pointer)[-1].vmap_table_offset_;
if (UNLIKELY(offset == 0u)) {
return nullptr;
}
return reinterpret_cast<const uint8_t*>(code_pointer) - offset;
}
inline CodeInfo ArtMethod::GetOptimizedCodeInfo() {
DCHECK(IsOptimized(sizeof(void*)));
const void* code_pointer = GetQuickOatCodePointer(sizeof(void*));
DCHECK(code_pointer != nullptr);
uint32_t offset =
reinterpret_cast<const OatQuickMethodHeader*>(code_pointer)[-1].vmap_table_offset_;
const void* data =
reinterpret_cast<const void*>(reinterpret_cast<const uint8_t*>(code_pointer) - offset);
return CodeInfo(data);
}
inline const uint8_t* ArtMethod::GetNativeGcMap(size_t pointer_size) {
const void* code_pointer = GetQuickOatCodePointer(pointer_size);
if (code_pointer == nullptr) {
return nullptr;
}
return GetNativeGcMap(code_pointer, pointer_size);
}
inline const uint8_t* ArtMethod::GetNativeGcMap(const void* code_pointer, size_t pointer_size) {
DCHECK(code_pointer != nullptr);
DCHECK_EQ(code_pointer, GetQuickOatCodePointer(pointer_size));
uint32_t offset =
reinterpret_cast<const OatQuickMethodHeader*>(code_pointer)[-1].gc_map_offset_;
if (UNLIKELY(offset == 0u)) {
return nullptr;
}
return reinterpret_cast<const uint8_t*>(code_pointer) - offset;
}
inline bool ArtMethod::IsRuntimeMethod() {
return dex_method_index_ == DexFile::kDexNoIndex;
}
inline bool ArtMethod::IsCalleeSaveMethod() {
if (!IsRuntimeMethod()) {
return false;
}
Runtime* runtime = Runtime::Current();
bool result = false;
for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
if (this == runtime->GetCalleeSaveMethod(Runtime::CalleeSaveType(i))) {
result = true;
break;
}
}
return result;
}
inline bool ArtMethod::IsResolutionMethod() {
bool result = this == Runtime::Current()->GetResolutionMethod();
// Check that if we do think it is phony it looks like the resolution method.
DCHECK(!result || IsRuntimeMethod());
return result;
}
inline bool ArtMethod::IsImtConflictMethod() {
bool result = this == Runtime::Current()->GetImtConflictMethod();
// Check that if we do think it is phony it looks like the imt conflict method.
DCHECK(!result || IsRuntimeMethod());
return result;
}
inline bool ArtMethod::IsImtUnimplementedMethod() {
bool result = this == Runtime::Current()->GetImtUnimplementedMethod();
// Check that if we do think it is phony it looks like the imt unimplemented method.
DCHECK(!result || IsRuntimeMethod());
return result;
}
inline uintptr_t ArtMethod::NativeQuickPcOffset(const uintptr_t pc) {
const void* code = Runtime::Current()->GetInstrumentation()->GetQuickCodeFor(
this, sizeof(void*));
return pc - reinterpret_cast<uintptr_t>(code);
}
inline QuickMethodFrameInfo ArtMethod::GetQuickFrameInfo(const void* code_pointer) {
DCHECK(code_pointer != nullptr);
if (kIsDebugBuild && !IsProxyMethod()) {
CHECK_EQ(code_pointer, GetQuickOatCodePointer(sizeof(void*)));
}
return reinterpret_cast<const OatQuickMethodHeader*>(code_pointer)[-1].frame_info_;
}
inline const DexFile* ArtMethod::GetDexFile() {
return GetDexCache()->GetDexFile();
}
inline const char* ArtMethod::GetDeclaringClassDescriptor() {
uint32_t dex_method_idx = GetDexMethodIndex();
if (UNLIKELY(dex_method_idx == DexFile::kDexNoIndex)) {
return "<runtime method>";
}
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
return dex_file->GetMethodDeclaringClassDescriptor(dex_file->GetMethodId(dex_method_idx));
}
inline const char* ArtMethod::GetShorty(uint32_t* out_length) {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
return dex_file->GetMethodShorty(dex_file->GetMethodId(GetDexMethodIndex()), out_length);
}
inline const Signature ArtMethod::GetSignature() {
uint32_t dex_method_idx = GetDexMethodIndex();
if (dex_method_idx != DexFile::kDexNoIndex) {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
return dex_file->GetMethodSignature(dex_file->GetMethodId(dex_method_idx));
}
return Signature::NoSignature();
}
inline const char* ArtMethod::GetName() {
uint32_t dex_method_idx = GetDexMethodIndex();
if (LIKELY(dex_method_idx != DexFile::kDexNoIndex)) {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
return dex_file->GetMethodName(dex_file->GetMethodId(dex_method_idx));
}
Runtime* const runtime = Runtime::Current();
if (this == runtime->GetResolutionMethod()) {
return "<runtime internal resolution method>";
} else if (this == runtime->GetImtConflictMethod()) {
return "<runtime internal imt conflict method>";
} else if (this == runtime->GetCalleeSaveMethod(Runtime::kSaveAll)) {
return "<runtime internal callee-save all registers method>";
} else if (this == runtime->GetCalleeSaveMethod(Runtime::kRefsOnly)) {
return "<runtime internal callee-save reference registers method>";
} else if (this == runtime->GetCalleeSaveMethod(Runtime::kRefsAndArgs)) {
return "<runtime internal callee-save reference and argument registers method>";
} else {
return "<unknown runtime internal method>";
}
}
inline const DexFile::CodeItem* ArtMethod::GetCodeItem() {
return GetDeclaringClass()->GetDexFile().GetCodeItem(GetCodeItemOffset());
}
inline bool ArtMethod::IsResolvedTypeIdx(uint16_t type_idx) {
DCHECK(!IsProxyMethod());
return GetDexCacheResolvedType(type_idx) != nullptr;
}
inline int32_t ArtMethod::GetLineNumFromDexPC(uint32_t dex_pc) {
DCHECK(!IsProxyMethod());
if (dex_pc == DexFile::kDexNoIndex) {
return IsNative() ? -2 : -1;
}
return GetDexFile()->GetLineNumFromPC(this, dex_pc);
}
inline const DexFile::ProtoId& ArtMethod::GetPrototype() {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
return dex_file->GetMethodPrototype(dex_file->GetMethodId(GetDexMethodIndex()));
}
inline const DexFile::TypeList* ArtMethod::GetParameterTypeList() {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
const DexFile::ProtoId& proto = dex_file->GetMethodPrototype(
dex_file->GetMethodId(GetDexMethodIndex()));
return dex_file->GetProtoParameters(proto);
}
inline const char* ArtMethod::GetDeclaringClassSourceFile() {
DCHECK(!IsProxyMethod());
return GetDeclaringClass()->GetSourceFile();
}
inline uint16_t ArtMethod::GetClassDefIndex() {
DCHECK(!IsProxyMethod());
return GetDeclaringClass()->GetDexClassDefIndex();
}
inline const DexFile::ClassDef& ArtMethod::GetClassDef() {
DCHECK(!IsProxyMethod());
return GetDexFile()->GetClassDef(GetClassDefIndex());
}
inline const char* ArtMethod::GetReturnTypeDescriptor() {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
const DexFile::MethodId& method_id = dex_file->GetMethodId(GetDexMethodIndex());
const DexFile::ProtoId& proto_id = dex_file->GetMethodPrototype(method_id);
uint16_t return_type_idx = proto_id.return_type_idx_;
return dex_file->GetTypeDescriptor(dex_file->GetTypeId(return_type_idx));
}
inline const char* ArtMethod::GetTypeDescriptorFromTypeIdx(uint16_t type_idx) {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
return dex_file->GetTypeDescriptor(dex_file->GetTypeId(type_idx));
}
inline mirror::ClassLoader* ArtMethod::GetClassLoader() {
DCHECK(!IsProxyMethod());
return GetDeclaringClass()->GetClassLoader();
}
inline mirror::DexCache* ArtMethod::GetDexCache() {
DCHECK(!IsProxyMethod());
return GetDeclaringClass()->GetDexCache();
}
inline bool ArtMethod::IsProxyMethod() {
return GetDeclaringClass()->IsProxyClass();
}
inline ArtMethod* ArtMethod::GetInterfaceMethodIfProxy(size_t pointer_size) {
if (LIKELY(!IsProxyMethod())) {
return this;
}
mirror::Class* klass = GetDeclaringClass();
auto interface_method = GetDexCacheResolvedMethods()->GetElementPtrSize<ArtMethod*>(
GetDexMethodIndex(), pointer_size);
DCHECK(interface_method != nullptr);
DCHECK_EQ(interface_method,
Runtime::Current()->GetClassLinker()->FindMethodForProxy(klass, this));
return interface_method;
}
inline void ArtMethod::SetDexCacheResolvedMethods(mirror::PointerArray* new_dex_cache_methods) {
dex_cache_resolved_methods_ = GcRoot<mirror::PointerArray>(new_dex_cache_methods);
}
inline void ArtMethod::SetDexCacheResolvedTypes(
mirror::ObjectArray<mirror::Class>* new_dex_cache_types) {
dex_cache_resolved_types_ = GcRoot<mirror::ObjectArray<mirror::Class>>(new_dex_cache_types);
}
inline mirror::Class* ArtMethod::GetReturnType(bool resolve) {
DCHECK(!IsProxyMethod());
const DexFile* dex_file = GetDexFile();
const DexFile::MethodId& method_id = dex_file->GetMethodId(GetDexMethodIndex());
const DexFile::ProtoId& proto_id = dex_file->GetMethodPrototype(method_id);
uint16_t return_type_idx = proto_id.return_type_idx_;
mirror::Class* type = GetDexCacheResolvedType(return_type_idx);
if (type == nullptr && resolve) {
type = Runtime::Current()->GetClassLinker()->ResolveType(return_type_idx, this);
CHECK(type != nullptr || Thread::Current()->IsExceptionPending());
}
return type;
}
template<typename RootVisitorType>
void ArtMethod::VisitRoots(RootVisitorType& visitor) {
visitor.VisitRootIfNonNull(declaring_class_.AddressWithoutBarrier());
visitor.VisitRootIfNonNull(dex_cache_resolved_methods_.AddressWithoutBarrier());
visitor.VisitRootIfNonNull(dex_cache_resolved_types_.AddressWithoutBarrier());
}
inline void ArtMethod::CopyFrom(const ArtMethod* src, size_t image_pointer_size) {
memcpy(reinterpret_cast<void*>(this), reinterpret_cast<const void*>(src),
ObjectSize(image_pointer_size));
declaring_class_ = GcRoot<mirror::Class>(const_cast<ArtMethod*>(src)->GetDeclaringClass());
dex_cache_resolved_methods_ = GcRoot<mirror::PointerArray>(
const_cast<ArtMethod*>(src)->GetDexCacheResolvedMethods());
dex_cache_resolved_types_ = GcRoot<mirror::ObjectArray<mirror::Class>>(
const_cast<ArtMethod*>(src)->GetDexCacheResolvedTypes());
}
} // namespace art
#endif // ART_RUNTIME_ART_METHOD_INL_H_