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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_MIRROR_ART_METHOD_INL_H_
#define ART_RUNTIME_MIRROR_ART_METHOD_INL_H_
#include "art_method.h"
#include "dex_file.h"
#include "entrypoints/entrypoint_utils.h"
#include "object_array.h"
#include "oat.h"
#include "quick/quick_method_frame_info.h"
#include "runtime-inl.h"
namespace art {
namespace mirror {
inline Class* ArtMethod::GetDeclaringClass() {
Class* result = GetFieldObject<Class>(OFFSET_OF_OBJECT_MEMBER(ArtMethod, declaring_class_));
DCHECK(result != NULL) << this;
DCHECK(result->IsIdxLoaded() || result->IsErroneous()) << this;
return result;
}
inline void ArtMethod::SetDeclaringClass(Class *new_declaring_class) {
SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(ArtMethod, declaring_class_),
new_declaring_class);
}
inline uint32_t ArtMethod::GetAccessFlags() {
DCHECK(GetDeclaringClass()->IsIdxLoaded() || GetDeclaringClass()->IsErroneous());
return GetField32(OFFSET_OF_OBJECT_MEMBER(ArtMethod, access_flags_));
}
inline uint16_t ArtMethod::GetMethodIndex() {
DCHECK(GetDeclaringClass()->IsResolved() || GetDeclaringClass()->IsErroneous());
return GetField32(OFFSET_OF_OBJECT_MEMBER(ArtMethod, method_index_));
}
inline uint32_t ArtMethod::GetDexMethodIndex() {
#ifdef ART_SEA_IR_MODE
// TODO: Re-add this check for (PORTABLE + SMALL + ) SEA IR when PORTABLE IS fixed!
// DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
#else
DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
#endif
return GetField32(OFFSET_OF_OBJECT_MEMBER(ArtMethod, dex_method_index_));
}
inline ObjectArray<String>* ArtMethod::GetDexCacheStrings() {
return GetFieldObject<ObjectArray<String> >(
OFFSET_OF_OBJECT_MEMBER(ArtMethod, dex_cache_strings_));
}
inline ObjectArray<ArtMethod>* ArtMethod::GetDexCacheResolvedMethods() {
return GetFieldObject<ObjectArray<ArtMethod> >(
OFFSET_OF_OBJECT_MEMBER(ArtMethod, dex_cache_resolved_methods_));
}
inline ObjectArray<Class>* ArtMethod::GetDexCacheResolvedTypes() {
return GetFieldObject<ObjectArray<Class> >(
OFFSET_OF_OBJECT_MEMBER(ArtMethod, dex_cache_resolved_types_));
}
inline uint32_t ArtMethod::GetCodeSize() {
DCHECK(!IsRuntimeMethod() && !IsProxyMethod()) << PrettyMethod(this);
const void* code = EntryPointToCodePointer(GetEntryPointFromQuickCompiledCode());
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: {
Class* methods_class = GetDeclaringClass();
return IsDirect() || (methods_class->IsInterface() && !IsMiranda());
}
case kSuper:
return false; // TODO: appropriate checks for call to super class.
case kInterface: {
Class* methods_class = GetDeclaringClass();
return IsDirect() || !(methods_class->IsInterface() || methods_class->IsObjectClass());
}
default:
LOG(FATAL) << "Unreachable - invocation type: " << type;
return true;
}
}
inline void ArtMethod::AssertPcIsWithinQuickCode(uintptr_t pc) {
if (!kIsDebugBuild) {
return;
}
if (IsNative() || IsRuntimeMethod() || IsProxyMethod()) {
return;
}
if (pc == GetQuickInstrumentationExitPc()) {
return;
}
const void* code = GetEntryPointFromQuickCompiledCode();
if (code == GetQuickToInterpreterBridge() || code == GetQuickInstrumentationEntryPoint()) {
return;
}
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
if (code == GetQuickResolutionTrampoline(class_linker) ||
code == GetQuickToInterpreterBridgeTrampoline(class_linker)) {
return;
}
DCHECK(IsWithinQuickCode(pc))
<< PrettyMethod(this)
<< " pc=" << std::hex << pc
<< " code=" << code
<< " size=" << GetCodeSize();
}
inline uint32_t ArtMethod::GetQuickOatCodeOffset() {
DCHECK(!Runtime::Current()->IsStarted());
return PointerToLowMemUInt32(GetEntryPointFromQuickCompiledCode());
}
inline uint32_t ArtMethod::GetPortableOatCodeOffset() {
DCHECK(!Runtime::Current()->IsStarted());
return PointerToLowMemUInt32(GetEntryPointFromPortableCompiledCode());
}
inline void ArtMethod::SetQuickOatCodeOffset(uint32_t code_offset) {
DCHECK(!Runtime::Current()->IsStarted());
SetEntryPointFromQuickCompiledCode(reinterpret_cast<void*>(code_offset));
}
inline void ArtMethod::SetPortableOatCodeOffset(uint32_t code_offset) {
DCHECK(!Runtime::Current()->IsStarted());
SetEntryPointFromPortableCompiledCode(reinterpret_cast<void*>(code_offset));
}
inline void ArtMethod::SetOatNativeGcMapOffset(uint32_t gc_map_offset) {
DCHECK(!Runtime::Current()->IsStarted());
SetNativeGcMap(reinterpret_cast<uint8_t*>(gc_map_offset));
}
inline uint32_t ArtMethod::GetOatNativeGcMapOffset() {
DCHECK(!Runtime::Current()->IsStarted());
return PointerToLowMemUInt32(GetNativeGcMap());
}
inline bool ArtMethod::IsRuntimeMethod() {
return GetDexMethodIndex() == 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;
}
template<VerifyObjectFlags kVerifyFlags>
inline void ArtMethod::SetNativeMethod(const void* native_method) {
SetFieldPtr<false, true, kVerifyFlags>(
OFFSET_OF_OBJECT_MEMBER(ArtMethod, entry_point_from_jni_), native_method);
}
inline QuickMethodFrameInfo ArtMethod::GetQuickFrameInfo() {
if (UNLIKELY(IsPortableCompiled())) {
// Portable compiled dex bytecode or jni stub.
return QuickMethodFrameInfo(kStackAlignment, 0u, 0u);
}
Runtime* runtime = Runtime::Current();
if (UNLIKELY(IsAbstract()) || UNLIKELY(IsProxyMethod())) {
return runtime->GetCalleeSaveMethodFrameInfo(Runtime::kRefsAndArgs);
}
if (UNLIKELY(IsRuntimeMethod())) {
return runtime->GetRuntimeMethodFrameInfo(this);
}
const void* entry_point = runtime->GetInstrumentation()->GetQuickCodeFor(this);
// On failure, instead of nullptr we get the quick-generic-jni-trampoline for native method
// indicating the generic JNI, or the quick-to-interpreter-bridge (but not the trampoline)
// for non-native methods. And we really shouldn't see a failure for non-native methods here.
DCHECK(entry_point != GetQuickToInterpreterBridgeTrampoline(runtime->GetClassLinker()));
CHECK(entry_point != GetQuickToInterpreterBridge());
if (UNLIKELY(entry_point == GetQuickGenericJniTrampoline())) {
// Generic JNI frame.
DCHECK(IsNative());
uint32_t sirt_refs = MethodHelper(this).GetNumberOfReferenceArgsWithoutReceiver() + 1;
size_t sirt_size = StackIndirectReferenceTable::GetAlignedSirtSize(sirt_refs);
QuickMethodFrameInfo callee_info = runtime->GetCalleeSaveMethodFrameInfo(Runtime::kRefsAndArgs);
return QuickMethodFrameInfo(callee_info.FrameSizeInBytes() + sirt_size,
callee_info.CoreSpillMask(), callee_info.FpSpillMask());
}
const void* code_pointer = EntryPointToCodePointer(entry_point);
return reinterpret_cast<const OatQuickMethodHeader*>(code_pointer)[-1].frame_info_;
}
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_ART_METHOD_INL_H_
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