8199739: Use HeapAccess when loading oops from static fields in javaClasses.cpp
Reviewed-by: kbarrett, eosterlund
/*
* Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#ifndef SHARE_VM_JVMCI_JVMCIJAVACLASSES_HPP
#define SHARE_VM_JVMCI_JVMCIJAVACLASSES_HPP
#include "classfile/systemDictionary.hpp"
#include "oops/access.inline.hpp"
#include "oops/instanceMirrorKlass.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/jniHandles.inline.hpp"
class JVMCIJavaClasses : AllStatic {
public:
static void compute_offsets(TRAPS);
};
/* This macro defines the structure of the JVMCI classes accessed from VM code.
* It will generate classes with accessors similar to javaClasses.hpp, but with specializations for oops, Handles and jni handles.
*
* The public interface of these classes will look like this:
* class StackSlot : AllStatic {
* public:
* static Klass* klass();
* static jint index(oop obj);
* static jint index(Handle obj);
* static jint index(jobject obj);
* static void set_index(oop obj, jint x);
* static void set_index(Handle obj, jint x);
* static void set_index(jobject obj, jint x);
* };
*
*/
#define COMPILER_CLASSES_DO(start_class, end_class, char_field, int_field, boolean_field, long_field, float_field, oop_field, typeArrayOop_field, objArrayOop_field, static_oop_field, static_objArrayOop_field, static_int_field, static_boolean_field) \
start_class(Architecture) \
oop_field(Architecture, wordKind, "Ljdk/vm/ci/meta/PlatformKind;") \
end_class \
start_class(TargetDescription) \
oop_field(TargetDescription, arch, "Ljdk/vm/ci/code/Architecture;") \
end_class \
start_class(HotSpotResolvedObjectTypeImpl) \
oop_field(HotSpotResolvedObjectTypeImpl, javaClass, "Ljava/lang/Class;") \
end_class \
start_class(HotSpotResolvedJavaMethodImpl) \
long_field(HotSpotResolvedJavaMethodImpl, metaspaceMethod) \
end_class \
start_class(InstalledCode) \
long_field(InstalledCode, address) \
long_field(InstalledCode, entryPoint) \
long_field(InstalledCode, version) \
oop_field(InstalledCode, name, "Ljava/lang/String;") \
end_class \
start_class(HotSpotInstalledCode) \
int_field(HotSpotInstalledCode, size) \
long_field(HotSpotInstalledCode, codeStart) \
int_field(HotSpotInstalledCode, codeSize) \
end_class \
start_class(HotSpotNmethod) \
boolean_field(HotSpotNmethod, isDefault) \
end_class \
start_class(HotSpotCompiledCode) \
oop_field(HotSpotCompiledCode, name, "Ljava/lang/String;") \
typeArrayOop_field(HotSpotCompiledCode, targetCode, "[B") \
int_field(HotSpotCompiledCode, targetCodeSize) \
objArrayOop_field(HotSpotCompiledCode, sites, "[Ljdk/vm/ci/code/site/Site;") \
objArrayOop_field(HotSpotCompiledCode, assumptions, "[Ljdk/vm/ci/meta/Assumptions$Assumption;") \
objArrayOop_field(HotSpotCompiledCode, methods, "[Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
objArrayOop_field(HotSpotCompiledCode, comments, "[Ljdk/vm/ci/hotspot/HotSpotCompiledCode$Comment;") \
typeArrayOop_field(HotSpotCompiledCode, dataSection, "[B") \
int_field(HotSpotCompiledCode, dataSectionAlignment) \
objArrayOop_field(HotSpotCompiledCode, dataSectionPatches, "[Ljdk/vm/ci/code/site/DataPatch;") \
boolean_field(HotSpotCompiledCode, isImmutablePIC) \
int_field(HotSpotCompiledCode, totalFrameSize) \
oop_field(HotSpotCompiledCode, deoptRescueSlot, "Ljdk/vm/ci/code/StackSlot;") \
end_class \
start_class(HotSpotCompiledCode_Comment) \
oop_field(HotSpotCompiledCode_Comment, text, "Ljava/lang/String;") \
int_field(HotSpotCompiledCode_Comment, pcOffset) \
end_class \
start_class(HotSpotCompiledNmethod) \
oop_field(HotSpotCompiledNmethod, method, "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethod;") \
oop_field(HotSpotCompiledNmethod, installationFailureMessage, "Ljava/lang/String;") \
int_field(HotSpotCompiledNmethod, entryBCI) \
int_field(HotSpotCompiledNmethod, id) \
long_field(HotSpotCompiledNmethod, jvmciEnv) \
boolean_field(HotSpotCompiledNmethod, hasUnsafeAccess) \
end_class \
start_class(HotSpotJVMCIMetaAccessContext) \
static_objArrayOop_field(HotSpotJVMCIMetaAccessContext, allContexts, "[Ljava/lang/ref/WeakReference;") \
objArrayOop_field(HotSpotJVMCIMetaAccessContext, metadataRoots, "[Ljava/lang/Object;") \
end_class \
start_class(HotSpotForeignCallTarget) \
long_field(HotSpotForeignCallTarget, address) \
end_class \
start_class(VMField) \
oop_field(VMField, name, "Ljava/lang/String;") \
oop_field(VMField, type, "Ljava/lang/String;") \
long_field(VMField, offset) \
long_field(VMField, address) \
oop_field(VMField, value, "Ljava/lang/Object;") \
end_class \
start_class(VMFlag) \
oop_field(VMFlag, name, "Ljava/lang/String;") \
oop_field(VMFlag, type, "Ljava/lang/String;") \
oop_field(VMFlag, value, "Ljava/lang/Object;") \
end_class \
start_class(VMIntrinsicMethod) \
oop_field(VMIntrinsicMethod, declaringClass, "Ljava/lang/String;") \
oop_field(VMIntrinsicMethod, name, "Ljava/lang/String;") \
oop_field(VMIntrinsicMethod, descriptor, "Ljava/lang/String;") \
int_field(VMIntrinsicMethod, id) \
end_class \
start_class(Assumptions_NoFinalizableSubclass) \
oop_field(Assumptions_NoFinalizableSubclass, receiverType, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
end_class \
start_class(Assumptions_ConcreteSubtype) \
oop_field(Assumptions_ConcreteSubtype, context, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
oop_field(Assumptions_ConcreteSubtype, subtype, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
end_class \
start_class(Assumptions_LeafType) \
oop_field(Assumptions_LeafType, context, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
end_class \
start_class(Assumptions_ConcreteMethod) \
oop_field(Assumptions_ConcreteMethod, method, "Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
oop_field(Assumptions_ConcreteMethod, context, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
oop_field(Assumptions_ConcreteMethod, impl, "Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
end_class \
start_class(Assumptions_CallSiteTargetValue) \
oop_field(Assumptions_CallSiteTargetValue, callSite, "Ljava/lang/invoke/CallSite;") \
oop_field(Assumptions_CallSiteTargetValue, methodHandle, "Ljava/lang/invoke/MethodHandle;") \
end_class \
start_class(site_Site) \
int_field(site_Site, pcOffset) \
end_class \
start_class(site_Call) \
oop_field(site_Call, target, "Ljdk/vm/ci/meta/InvokeTarget;") \
oop_field(site_Call, debugInfo, "Ljdk/vm/ci/code/DebugInfo;") \
end_class \
start_class(site_DataPatch) \
oop_field(site_DataPatch, reference, "Ljdk/vm/ci/code/site/Reference;") \
end_class \
start_class(site_ConstantReference) \
oop_field(site_ConstantReference, constant, "Ljdk/vm/ci/meta/VMConstant;") \
end_class \
start_class(site_DataSectionReference) \
int_field(site_DataSectionReference, offset) \
end_class \
start_class(site_InfopointReason) \
static_oop_field(site_InfopointReason, SAFEPOINT, "Ljdk/vm/ci/code/site/InfopointReason;") \
static_oop_field(site_InfopointReason, CALL, "Ljdk/vm/ci/code/site/InfopointReason;") \
static_oop_field(site_InfopointReason, IMPLICIT_EXCEPTION, "Ljdk/vm/ci/code/site/InfopointReason;") \
end_class \
start_class(site_Infopoint) \
oop_field(site_Infopoint, debugInfo, "Ljdk/vm/ci/code/DebugInfo;") \
oop_field(site_Infopoint, reason, "Ljdk/vm/ci/code/site/InfopointReason;") \
end_class \
start_class(site_ExceptionHandler) \
int_field(site_ExceptionHandler, handlerPos) \
end_class \
start_class(site_Mark) \
oop_field(site_Mark, id, "Ljava/lang/Object;") \
end_class \
start_class(HotSpotCompilationRequestResult) \
oop_field(HotSpotCompilationRequestResult, failureMessage, "Ljava/lang/String;") \
boolean_field(HotSpotCompilationRequestResult, retry) \
int_field(HotSpotCompilationRequestResult, inlinedBytecodes) \
end_class \
start_class(DebugInfo) \
oop_field(DebugInfo, bytecodePosition, "Ljdk/vm/ci/code/BytecodePosition;") \
oop_field(DebugInfo, referenceMap, "Ljdk/vm/ci/code/ReferenceMap;") \
oop_field(DebugInfo, calleeSaveInfo, "Ljdk/vm/ci/code/RegisterSaveLayout;") \
objArrayOop_field(DebugInfo, virtualObjectMapping, "[Ljdk/vm/ci/code/VirtualObject;") \
end_class \
start_class(HotSpotReferenceMap) \
objArrayOop_field(HotSpotReferenceMap, objects, "[Ljdk/vm/ci/code/Location;") \
objArrayOop_field(HotSpotReferenceMap, derivedBase, "[Ljdk/vm/ci/code/Location;") \
typeArrayOop_field(HotSpotReferenceMap, sizeInBytes, "[I") \
int_field(HotSpotReferenceMap, maxRegisterSize) \
end_class \
start_class(RegisterSaveLayout) \
objArrayOop_field(RegisterSaveLayout, registers, "[Ljdk/vm/ci/code/Register;") \
typeArrayOop_field(RegisterSaveLayout, slots, "[I") \
end_class \
start_class(BytecodeFrame) \
objArrayOop_field(BytecodeFrame, values, "[Ljdk/vm/ci/meta/JavaValue;") \
objArrayOop_field(BytecodeFrame, slotKinds, "[Ljdk/vm/ci/meta/JavaKind;") \
int_field(BytecodeFrame, numLocals) \
int_field(BytecodeFrame, numStack) \
int_field(BytecodeFrame, numLocks) \
boolean_field(BytecodeFrame, rethrowException) \
boolean_field(BytecodeFrame, duringCall) \
static_int_field(BytecodeFrame, BEFORE_BCI) \
end_class \
start_class(BytecodePosition) \
oop_field(BytecodePosition, caller, "Ljdk/vm/ci/code/BytecodePosition;") \
oop_field(BytecodePosition, method, "Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
int_field(BytecodePosition, bci) \
end_class \
start_class(JavaConstant) \
end_class \
start_class(PrimitiveConstant) \
oop_field(PrimitiveConstant, kind, "Ljdk/vm/ci/meta/JavaKind;") \
long_field(PrimitiveConstant, primitive) \
end_class \
start_class(RawConstant) \
long_field(RawConstant, primitive) \
end_class \
start_class(NullConstant) \
end_class \
start_class(HotSpotCompressedNullConstant) \
end_class \
start_class(HotSpotObjectConstantImpl) \
oop_field(HotSpotObjectConstantImpl, object, "Ljava/lang/Object;") \
boolean_field(HotSpotObjectConstantImpl, compressed) \
end_class \
start_class(HotSpotMetaspaceConstantImpl) \
oop_field(HotSpotMetaspaceConstantImpl, metaspaceObject, "Ljdk/vm/ci/hotspot/MetaspaceWrapperObject;") \
boolean_field(HotSpotMetaspaceConstantImpl, compressed) \
end_class \
start_class(HotSpotSentinelConstant) \
end_class \
start_class(JavaKind) \
char_field(JavaKind, typeChar) \
static_oop_field(JavaKind, Boolean, "Ljdk/vm/ci/meta/JavaKind;"); \
static_oop_field(JavaKind, Byte, "Ljdk/vm/ci/meta/JavaKind;"); \
static_oop_field(JavaKind, Char, "Ljdk/vm/ci/meta/JavaKind;"); \
static_oop_field(JavaKind, Short, "Ljdk/vm/ci/meta/JavaKind;"); \
static_oop_field(JavaKind, Int, "Ljdk/vm/ci/meta/JavaKind;"); \
static_oop_field(JavaKind, Long, "Ljdk/vm/ci/meta/JavaKind;"); \
end_class \
start_class(ValueKind) \
oop_field(ValueKind, platformKind, "Ljdk/vm/ci/meta/PlatformKind;") \
end_class \
start_class(Value) \
oop_field(Value, valueKind, "Ljdk/vm/ci/meta/ValueKind;") \
static_oop_field(Value, ILLEGAL, "Ljdk/vm/ci/meta/AllocatableValue;"); \
end_class \
start_class(RegisterValue) \
oop_field(RegisterValue, reg, "Ljdk/vm/ci/code/Register;") \
end_class \
start_class(code_Location) \
oop_field(code_Location, reg, "Ljdk/vm/ci/code/Register;") \
int_field(code_Location, offset) \
end_class \
start_class(code_Register) \
int_field(code_Register, number) \
int_field(code_Register, encoding) \
end_class \
start_class(StackSlot) \
int_field(StackSlot, offset) \
boolean_field(StackSlot, addFrameSize) \
end_class \
start_class(VirtualObject) \
int_field(VirtualObject, id) \
oop_field(VirtualObject, type, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
objArrayOop_field(VirtualObject, values, "[Ljdk/vm/ci/meta/JavaValue;") \
objArrayOop_field(VirtualObject, slotKinds, "[Ljdk/vm/ci/meta/JavaKind;") \
end_class \
start_class(StackLockValue) \
oop_field(StackLockValue, owner, "Ljdk/vm/ci/meta/JavaValue;") \
oop_field(StackLockValue, slot, "Ljdk/vm/ci/meta/AllocatableValue;") \
boolean_field(StackLockValue, eliminated) \
end_class \
start_class(HotSpotSpeculationLog) \
oop_field(HotSpotSpeculationLog, lastFailed, "Ljava/lang/Object;") \
end_class \
start_class(HotSpotStackFrameReference) \
oop_field(HotSpotStackFrameReference, compilerToVM, "Ljdk/vm/ci/hotspot/CompilerToVM;") \
boolean_field(HotSpotStackFrameReference, objectsMaterialized) \
long_field(HotSpotStackFrameReference, stackPointer) \
int_field(HotSpotStackFrameReference, frameNumber) \
int_field(HotSpotStackFrameReference, bci) \
oop_field(HotSpotStackFrameReference, method, "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethod;") \
objArrayOop_field(HotSpotStackFrameReference, locals, "[Ljava/lang/Object;") \
typeArrayOop_field(HotSpotStackFrameReference, localIsVirtual, "[Z") \
end_class \
start_class(HotSpotMetaData) \
typeArrayOop_field(HotSpotMetaData, pcDescBytes, "[B") \
typeArrayOop_field(HotSpotMetaData, scopesDescBytes, "[B") \
typeArrayOop_field(HotSpotMetaData, relocBytes, "[B") \
typeArrayOop_field(HotSpotMetaData, exceptionBytes, "[B") \
typeArrayOop_field(HotSpotMetaData, oopMaps, "[B") \
objArrayOop_field(HotSpotMetaData, metadata, "[Ljava/lang/Object;") \
end_class \
start_class(HotSpotConstantPool) \
long_field(HotSpotConstantPool, metaspaceConstantPool) \
end_class \
start_class(HotSpotJVMCIRuntime) \
objArrayOop_field(HotSpotJVMCIRuntime, trivialPrefixes, "[Ljava/lang/String;") \
int_field(HotSpotJVMCIRuntime, compilationLevelAdjustment) \
end_class \
/* end*/
#define START_CLASS(name) \
class name : AllStatic { \
private: \
friend class JVMCICompiler; \
static void check(oop obj, const char* field_name, int offset) { \
assert(obj != NULL, "NULL field access of %s.%s", #name, field_name); \
assert(obj->is_a(SystemDictionary::name##_klass()), "wrong class, " #name " expected, found %s", obj->klass()->external_name()); \
assert(offset != 0, "must be valid offset"); \
} \
static void compute_offsets(TRAPS); \
public: \
static InstanceKlass* klass() { return SystemDictionary::name##_klass(); }
#define END_CLASS };
#define FIELD(name, type, accessor, cast) \
static int _##name##_offset; \
static type name(oop obj) { check(obj, #name, _##name##_offset); return cast obj->accessor(_##name##_offset); } \
static type name(Handle obj) { check(obj(), #name, _##name##_offset); return cast obj->accessor(_##name##_offset); } \
static type name(jobject obj) { check(JNIHandles::resolve(obj), #name, _##name##_offset); return cast JNIHandles::resolve(obj)->accessor(_##name##_offset); } \
static void set_##name(oop obj, type x) { check(obj, #name, _##name##_offset); obj->accessor##_put(_##name##_offset, x); } \
static void set_##name(Handle obj, type x) { check(obj(), #name, _##name##_offset); obj->accessor##_put(_##name##_offset, x); } \
static void set_##name(jobject obj, type x) { check(JNIHandles::resolve(obj), #name, _##name##_offset); JNIHandles::resolve(obj)->accessor##_put(_##name##_offset, x); }
#define EMPTY_CAST
#define CHAR_FIELD(klass, name) FIELD(name, jchar, char_field, EMPTY_CAST)
#define INT_FIELD(klass, name) FIELD(name, jint, int_field, EMPTY_CAST)
#define BOOLEAN_FIELD(klass, name) FIELD(name, jboolean, bool_field, EMPTY_CAST)
#define LONG_FIELD(klass, name) FIELD(name, jlong, long_field, EMPTY_CAST)
#define FLOAT_FIELD(klass, name) FIELD(name, jfloat, float_field, EMPTY_CAST)
#define OOP_FIELD(klass, name, signature) FIELD(name, oop, obj_field, EMPTY_CAST)
#define OBJARRAYOOP_FIELD(klass, name, signature) FIELD(name, objArrayOop, obj_field, (objArrayOop))
#define TYPEARRAYOOP_FIELD(klass, name, signature) FIELD(name, typeArrayOop, obj_field, (typeArrayOop))
#define STATIC_OOP_FIELD(klassName, name, signature) STATIC_OOPISH_FIELD(klassName, name, oop, signature)
#define STATIC_OBJARRAYOOP_FIELD(klassName, name, signature) STATIC_OOPISH_FIELD(klassName, name, objArrayOop, signature)
#define STATIC_OOPISH_FIELD(klassName, name, type, signature) \
static int _##name##_offset; \
static type name() { \
assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
InstanceKlass* ik = klassName::klass(); \
oop base = ik->static_field_base_raw(); \
oop result = HeapAccess<>::oop_load_at(base, _##name##_offset); \
return type(result); \
} \
static void set_##name(type x) { \
assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
assert(klassName::klass() != NULL, "Class not yet loaded: " #klassName); \
InstanceKlass* ik = klassName::klass(); \
oop base = ik->static_field_base_raw(); \
HeapAccess<>::oop_store_at(base, _##name##_offset, x); \
}
#define STATIC_PRIMITIVE_FIELD(klassName, name, jtypename) \
static int _##name##_offset; \
static jtypename name() { \
assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
InstanceKlass* ik = klassName::klass(); \
oop base = ik->static_field_base_raw(); \
return HeapAccess<>::load_at(base, _##name##_offset); \
} \
static void set_##name(jtypename x) { \
assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
InstanceKlass* ik = klassName::klass(); \
oop base = ik->static_field_base_raw(); \
HeapAccess<>::store_at(base, _##name##_offset, x); \
}
#define STATIC_INT_FIELD(klassName, name) STATIC_PRIMITIVE_FIELD(klassName, name, jint)
#define STATIC_BOOLEAN_FIELD(klassName, name) STATIC_PRIMITIVE_FIELD(klassName, name, jboolean)
COMPILER_CLASSES_DO(START_CLASS, END_CLASS, CHAR_FIELD, INT_FIELD, BOOLEAN_FIELD, LONG_FIELD, FLOAT_FIELD, OOP_FIELD, TYPEARRAYOOP_FIELD, OBJARRAYOOP_FIELD, STATIC_OOP_FIELD, STATIC_OBJARRAYOOP_FIELD, STATIC_INT_FIELD, STATIC_BOOLEAN_FIELD)
#undef START_CLASS
#undef END_CLASS
#undef FIELD
#undef CHAR_FIELD
#undef INT_FIELD
#undef BOOLEAN_FIELD
#undef LONG_FIELD
#undef FLOAT_FIELD
#undef OOP_FIELD
#undef TYPEARRAYOOP_FIELD
#undef OBJARRAYOOP_FIELD
#undef STATIC_OOPISH_FIELD
#undef STATIC_OOP_FIELD
#undef STATIC_OBJARRAYOOP_FIELD
#undef STATIC_INT_FIELD
#undef STATIC_BOOLEAN_FIELD
#undef EMPTY_CAST
void compute_offset(int &dest_offset, Klass* klass, const char* name, const char* signature, bool static_field, TRAPS);
#endif // SHARE_VM_JVMCI_JVMCIJAVACLASSES_HPP