| /* | |
| * Copyright (c) 2000, 2025, 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. | |
| * | |
| */ | |
| package sun.jvm.hotspot.code; | |
| import java.io.*; | |
| import java.util.*; | |
| import sun.jvm.hotspot.debugger.*; | |
| import sun.jvm.hotspot.memory.*; | |
| import sun.jvm.hotspot.oops.*; | |
| import sun.jvm.hotspot.runtime.*; | |
| import sun.jvm.hotspot.types.*; | |
| import sun.jvm.hotspot.utilities.*; | |
| import sun.jvm.hotspot.utilities.Observable; | |
| import sun.jvm.hotspot.utilities.Observer; | |
| public class NMethod extends CodeBlob { | |
| private static long pcDescSize; | |
| private static AddressField methodField; | |
| /** != InvocationEntryBci if this nmethod is an on-stack replacement method */ | |
| private static CIntegerField entryBCIField; | |
| /** To support simple linked-list chaining of nmethods */ | |
| private static AddressField osrLinkField; | |
| private static AddressField immutableDataField; | |
| private static CIntegerField immutableDataSizeField; | |
| /** Offsets for different nmethod parts */ | |
| private static CIntegerField exceptionOffsetField; | |
| private static CIntegerField deoptHandlerOffsetField; | |
| private static CIntegerField deoptMhHandlerOffsetField; | |
| private static CIntegerField origPCOffsetField; | |
| private static CIntegerField stubOffsetField; | |
| private static CIntField handlerTableOffsetField; | |
| private static CIntField nulChkTableOffsetField; | |
| private static CIntegerField scopesPCsOffsetField; | |
| private static CIntegerField scopesDataOffsetField; | |
| /** Offsets for entry points */ | |
| /** Entry point with class check */ | |
| private static CIntField entryOffsetField; | |
| /** Entry point without class check */ | |
| private static CIntField verifiedEntryOffsetField; | |
| /** Entry point for on stack replacement */ | |
| private static AddressField osrEntryPointField; | |
| // FIXME: add access to flags (how?) | |
| private static CIntField compLevelField; | |
| static { | |
| VM.registerVMInitializedObserver(new Observer() { | |
| public void update(Observable o, Object data) { | |
| initialize(VM.getVM().getTypeDataBase()); | |
| } | |
| }); | |
| } | |
| private static void initialize(TypeDataBase db) { | |
| Type type = db.lookupType("nmethod"); | |
| methodField = type.getAddressField("_method"); | |
| entryBCIField = type.getCIntegerField("_entry_bci"); | |
| osrLinkField = type.getAddressField("_osr_link"); | |
| immutableDataField = type.getAddressField("_immutable_data"); | |
| immutableDataSizeField = type.getCIntegerField("_immutable_data_size"); | |
| exceptionOffsetField = type.getCIntegerField("_exception_offset"); | |
| deoptHandlerOffsetField = type.getCIntegerField("_deopt_handler_offset"); | |
| deoptMhHandlerOffsetField = type.getCIntegerField("_deopt_mh_handler_offset"); | |
| origPCOffsetField = type.getCIntegerField("_orig_pc_offset"); | |
| stubOffsetField = type.getCIntegerField("_stub_offset"); | |
| scopesPCsOffsetField = type.getCIntegerField("_scopes_pcs_offset"); | |
| scopesDataOffsetField = type.getCIntegerField("_scopes_data_offset"); | |
| handlerTableOffsetField = new CIntField(type.getCIntegerField("_handler_table_offset"), 0); | |
| nulChkTableOffsetField = new CIntField(type.getCIntegerField("_nul_chk_table_offset"), 0); | |
| entryOffsetField = new CIntField(type.getCIntegerField("_entry_offset"), 0); | |
| verifiedEntryOffsetField = new CIntField(type.getCIntegerField("_verified_entry_offset"), 0); | |
| osrEntryPointField = type.getAddressField("_osr_entry_point"); | |
| compLevelField = new CIntField(type.getCIntegerField("_comp_level"), 0); | |
| pcDescSize = db.lookupType("PcDesc").getSize(); | |
| } | |
| public NMethod(Address addr) { | |
| super(addr); | |
| } | |
| // Accessors | |
| public Address getAddress() { | |
| return addr; | |
| } | |
| public Method getMethod() { | |
| return (Method)Metadata.instantiateWrapperFor(methodField.getValue(addr)); | |
| } | |
| // Type info | |
| public boolean isJavaMethod() { return !getMethod().isNative(); } | |
| public boolean isNativeMethod() { return getMethod().isNative(); } | |
| public boolean isOSRMethod() { return getEntryBCI() != VM.getVM().getInvocationEntryBCI(); } | |
| /** Boundaries for different parts */ | |
| public Address constantsBegin() { return contentBegin(); } | |
| public Address constantsEnd() { return codeBegin(); } | |
| public Address instsBegin() { return codeBegin(); } | |
| public Address instsEnd() { return headerBegin().addOffsetTo(getStubOffset()); } | |
| public Address exceptionBegin() { return headerBegin().addOffsetTo(getExceptionOffset()); } | |
| public Address deoptHandlerBegin() { return headerBegin().addOffsetTo(getDeoptHandlerOffset()); } | |
| public Address deoptMhHandlerBegin() { return headerBegin().addOffsetTo(getDeoptMhHandlerOffset()); } | |
| public Address stubBegin() { return headerBegin().addOffsetTo(getStubOffset()); } | |
| public Address stubEnd() { return dataBegin(); } | |
| public Address oopsBegin() { return dataBegin(); } | |
| public Address oopsEnd() { return dataEnd(); } | |
| public Address immutableDataBegin() { return immutableDataField.getValue(addr); } | |
| public Address immutableDataEnd() { return immutableDataBegin().addOffsetTo(getImmutableDataSize()); } | |
| public Address dependenciesBegin() { return immutableDataBegin(); } | |
| public Address dependenciesEnd() { return immutableDataBegin().addOffsetTo(getHandlerTableOffset()); } | |
| public Address handlerTableBegin() { return immutableDataBegin().addOffsetTo(getHandlerTableOffset()); } | |
| public Address handlerTableEnd() { return immutableDataBegin().addOffsetTo(getNulChkTableOffset()); } | |
| public Address nulChkTableBegin() { return immutableDataBegin().addOffsetTo(getNulChkTableOffset()); } | |
| public Address nulChkTableEnd() { return immutableDataBegin().addOffsetTo(getScopesDataOffset()); } | |
| public Address scopesDataBegin() { return immutableDataBegin().addOffsetTo(getScopesDataOffset()); } | |
| public Address scopesDataEnd() { return immutableDataBegin().addOffsetTo(getScopesPCsOffset()); } | |
| public Address scopesPCsBegin() { return immutableDataBegin().addOffsetTo(getScopesPCsOffset()); } | |
| public Address scopesPCsEnd() { return immutableDataEnd(); } | |
| public Address metadataBegin() { return mutableDataBegin().addOffsetTo(getRelocationSize()); } | |
| public Address metadataEnd() { return mutableDataEnd(); } | |
| public int getImmutableDataSize() { return (int) immutableDataSizeField.getValue(addr); } | |
| public int constantsSize() { return (int) constantsEnd() .minus(constantsBegin()); } | |
| public int instsSize() { return (int) instsEnd() .minus(instsBegin()); } | |
| public int stubSize() { return (int) stubEnd() .minus(stubBegin()); } | |
| public int oopsSize() { return (int) oopsEnd() .minus(oopsBegin()); } | |
| public int metadataSize() { return (int) metadataEnd() .minus(metadataBegin()); } | |
| public int scopesDataSize() { return (int) scopesDataEnd() .minus(scopesDataBegin()); } | |
| public int scopesPCsSize() { return (int) scopesPCsEnd() .minus(scopesPCsBegin()); } | |
| public int dependenciesSize() { return (int) dependenciesEnd().minus(dependenciesBegin()); } | |
| public int handlerTableSize() { return (int) handlerTableEnd().minus(handlerTableBegin()); } | |
| public int nulChkTableSize() { return (int) nulChkTableEnd() .minus(nulChkTableBegin()); } | |
| public int origPCOffset() { return (int) origPCOffsetField.getValue(addr); } | |
| public int totalSize() { | |
| return | |
| constantsSize() + | |
| instsSize() + | |
| stubSize(); | |
| } | |
| public int immutableDataSize() { | |
| return | |
| scopesDataSize() + | |
| scopesPCsSize() + | |
| dependenciesSize() + | |
| handlerTableSize() + | |
| nulChkTableSize(); | |
| } | |
| public boolean constantsContains (Address addr) { return constantsBegin() .lessThanOrEqual(addr) && constantsEnd() .greaterThan(addr); } | |
| public boolean instsContains (Address addr) { return instsBegin() .lessThanOrEqual(addr) && instsEnd() .greaterThan(addr); } | |
| public boolean stubContains (Address addr) { return stubBegin() .lessThanOrEqual(addr) && stubEnd() .greaterThan(addr); } | |
| public boolean oopsContains (Address addr) { return oopsBegin() .lessThanOrEqual(addr) && oopsEnd() .greaterThan(addr); } | |
| public boolean metadataContains (Address addr) { return metadataBegin() .lessThanOrEqual(addr) && metadataEnd() .greaterThan(addr); } | |
| public boolean scopesDataContains (Address addr) { return scopesDataBegin() .lessThanOrEqual(addr) && scopesDataEnd() .greaterThan(addr); } | |
| public boolean scopesPCsContains (Address addr) { return scopesPCsBegin() .lessThanOrEqual(addr) && scopesPCsEnd() .greaterThan(addr); } | |
| public boolean handlerTableContains(Address addr) { return handlerTableBegin().lessThanOrEqual(addr) && handlerTableEnd().greaterThan(addr); } | |
| public boolean nulChkTableContains (Address addr) { return nulChkTableBegin() .lessThanOrEqual(addr) && nulChkTableEnd() .greaterThan(addr); } | |
| public int getOopsLength() { return (int) (oopsSize() / VM.getVM().getOopSize()); } | |
| public int getMetadataLength() { return (int) (metadataSize() / VM.getVM().getOopSize()); } | |
| /** Entry points */ | |
| public Address getEntryPoint() { return codeBegin().addOffsetTo(getEntryPointOffset()); } | |
| public Address getVerifiedEntryPoint() { return codeBegin().addOffsetTo(getVerifiedEntryPointOffset()); } | |
| /** Support for oops in scopes and relocs. Note: index 0 is reserved for null. */ | |
| public OopHandle getOopAt(int index) { | |
| if (index == 0) return null; | |
| if (Assert.ASSERTS_ENABLED) { | |
| Assert.that(index > 0 && index <= getOopsLength(), "must be a valid non-zero index: " + index); | |
| } | |
| return oopsBegin().getOopHandleAt((index - 1) * VM.getVM().getOopSize()); | |
| } | |
| /** Support for metadata in scopes and relocs. Note: index 0 is reserved for null. */ | |
| public Address getMetadataAt(int index) { | |
| if (index == 0) return null; | |
| if (Assert.ASSERTS_ENABLED) { | |
| Assert.that(index > 0 && index <= getMetadataLength(), "must be a valid non-zero index: " + index); | |
| } | |
| return metadataBegin().getAddressAt((index - 1) * VM.getVM().getOopSize()); | |
| } | |
| public Method getMethodAt(int index) { | |
| return (Method)Metadata.instantiateWrapperFor(getMetadataAt(index)); | |
| } | |
| // FIXME: add interpreter_entry_point() | |
| // FIXME: add lazy_interpreter_entry_point() for C2 | |
| // ********** | |
| // * FIXME: * ADD ACCESS TO FLAGS!!!! | |
| // ********** | |
| // public boolean isInUse(); | |
| // public boolean isNotEntrant(); | |
| // ******************************** | |
| // * MAJOR FIXME: MAJOR HACK HERE * | |
| // ******************************** | |
| // public boolean isYoung(); | |
| // public boolean isOld(); | |
| // public int age(); | |
| // public boolean isMarkedForDeoptimization(); | |
| // public boolean isMarkedForUnloading(); | |
| // public int level(); | |
| // public int version(); | |
| // FIXME: add mutators for above | |
| // FIXME: add exception cache access? | |
| /** On-stack replacement support */ | |
| // FIXME: add mutators | |
| public int getOSREntryBCI() { | |
| if (Assert.ASSERTS_ENABLED) { | |
| Assert.that(getEntryBCI() != VM.getVM().getInvocationEntryBCI(), "wrong kind of nmethod"); | |
| } | |
| return getEntryBCI(); | |
| } | |
| public NMethod getOSRLink() { | |
| return VMObjectFactory.newObject(NMethod.class, osrLinkField.getValue(addr)); | |
| } | |
| // MethodHandle | |
| public boolean isMethodHandleReturn(Address returnPc) { | |
| // Hard to read a bit fields from Java and it's only there for performance | |
| // so just go directly to the PCDesc | |
| // if (!hasMethodHandleInvokes()) return false; | |
| PCDesc pd = getPCDescAt(returnPc); | |
| if (pd == null) | |
| return false; | |
| return pd.isMethodHandleInvoke(); | |
| } | |
| // Deopt | |
| // Return true is the PC is one would expect if the frame is being deopted. | |
| public boolean isDeoptPc (Address pc) { return isDeoptEntry(pc) || isDeoptMhEntry(pc); } | |
| public boolean isDeoptEntry (Address pc) { return pc == deoptHandlerBegin(); } | |
| public boolean isDeoptMhEntry (Address pc) { return pc == deoptMhHandlerBegin(); } | |
| /** Tells whether frames described by this nmethod can be | |
| deoptimized. Note: native wrappers cannot be deoptimized. */ | |
| public boolean canBeDeoptimized() { return isJavaMethod(); } | |
| // FIXME: add inline cache support | |
| // FIXME: add flush() | |
| // FIXME: add mark_as_seen_on_stack | |
| // FIXME: add can_not_entrant_be_converted | |
| // FIXME: add GC support | |
| // void follow_roots_or_mark_for_unloading(bool unloading_occurred, bool& marked_for_unloading); | |
| // void follow_root_or_mark_for_unloading(oop* root, bool unloading_occurred, bool& marked_for_unloading); | |
| // void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, void f(oop*)); | |
| // void adjust_pointers(); | |
| /** Finds a PCDesc with real-pc equal to "pc" */ | |
| public PCDesc getPCDescAt(Address pc) { | |
| // FIXME: consider adding cache like the one down in the VM | |
| for (Address p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); p = p.addOffsetTo(pcDescSize)) { | |
| PCDesc pcDesc = new PCDesc(p); | |
| if (pcDesc.getRealPC(this).equals(pc)) { | |
| return pcDesc; | |
| } | |
| } | |
| return null; | |
| } | |
| /** | |
| * Attempt to decode all the debug info in this nmethod. This is intended purely for testing. | |
| */ | |
| public void decodeAllScopeDescs() { | |
| for (Address p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); p = p.addOffsetTo(pcDescSize)) { | |
| PCDesc pd = new PCDesc(p); | |
| if (pd.getPCOffset() == -1) { | |
| break; | |
| } | |
| ScopeDesc sd = new ScopeDesc(this, pd.getScopeDecodeOffset(), pd.getObjDecodeOffset(), pd.getReexecute()); | |
| } | |
| } | |
| /** ScopeDesc for an instruction */ | |
| public ScopeDesc getScopeDescAt(Address pc) { | |
| PCDesc pd = getPCDescAt(pc); | |
| if (Assert.ASSERTS_ENABLED) { | |
| Assert.that(pd != null, "scope must be present"); | |
| } | |
| return new ScopeDesc(this, pd.getScopeDecodeOffset(), pd.getObjDecodeOffset(), pd.getReexecute()); | |
| } | |
| /** This is only for use by the debugging system, and is only | |
| intended for use in the topmost frame, where we are not | |
| guaranteed to be at a PC for which we have a PCDesc. It finds | |
| the PCDesc with realPC closest to the current PC that has | |
| a valid scope decode offset. */ | |
| public PCDesc getPCDescNearDbg(Address pc) { | |
| PCDesc bestGuessPCDesc = null; | |
| long bestDistance = 0; | |
| for (Address p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); p = p.addOffsetTo(pcDescSize)) { | |
| PCDesc pcDesc = new PCDesc(p); | |
| if (pcDesc.getScopeDecodeOffset() == DebugInformationRecorder.SERIALIZED_NULL) { | |
| // We've observed a serialized null decode offset. Ignore this PcDesc. | |
| continue; | |
| } | |
| // In case pc is null | |
| long distance = -pcDesc.getRealPC(this).minus(pc); | |
| if ((bestGuessPCDesc == null) || | |
| ((distance >= 0) && (distance < bestDistance))) { | |
| bestGuessPCDesc = pcDesc; | |
| bestDistance = distance; | |
| } | |
| } | |
| return bestGuessPCDesc; | |
| } | |
| PCDesc find_pc_desc(long pc, boolean approximate) { | |
| return find_pc_desc_internal(pc, approximate); | |
| } | |
| // Finds a PcDesc with real-pc equal to "pc" | |
| PCDesc find_pc_desc_internal(long pc, boolean approximate) { | |
| long base_address = VM.getAddressValue(codeBegin()); | |
| int pc_offset = (int) (pc - base_address); | |
| // Fallback algorithm: quasi-linear search for the PcDesc | |
| // Find the last pc_offset less than the given offset. | |
| // The successor must be the required match, if there is a match at all. | |
| // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| Address lower = scopesPCsBegin(); | |
| Address upper = scopesPCsEnd(); | |
| upper = upper.addOffsetTo(-pcDescSize); // exclude final sentinel | |
| if (lower.greaterThan(upper)) return null; // native method; no PcDescs at all | |
| // Take giant steps at first (4096, then 256, then 16, then 1) | |
| int LOG2_RADIX = 4; | |
| Address mid; | |
| for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| while ((mid = lower.addOffsetTo(step * pcDescSize)).lessThan(upper)) { | |
| PCDesc m = new PCDesc(mid); | |
| if (m.getPCOffset() < pc_offset) { | |
| lower = mid; | |
| } else { | |
| upper = mid; | |
| break; | |
| } | |
| } | |
| } | |
| // Sneak up on the value with a linear search of length ~16. | |
| while (true) { | |
| mid = lower.addOffsetTo(pcDescSize); | |
| PCDesc m = new PCDesc(mid); | |
| if (m.getPCOffset() < pc_offset) { | |
| lower = mid; | |
| } else { | |
| upper = mid; | |
| break; | |
| } | |
| } | |
| PCDesc u = new PCDesc(upper); | |
| if (match_desc(u, pc_offset, approximate)) { | |
| return u; | |
| } else { | |
| return null; | |
| } | |
| } | |
| // ScopeDesc retrieval operation | |
| PCDesc pc_desc_at(long pc) { return find_pc_desc(pc, false); } | |
| // pc_desc_near returns the first PCDesc at or after the givne pc. | |
| PCDesc pc_desc_near(long pc) { return find_pc_desc(pc, true); } | |
| // Return the last scope in (begin..end] | |
| public ScopeDesc scope_desc_in(long begin, long end) { | |
| PCDesc p = pc_desc_near(begin+1); | |
| if (p != null && VM.getAddressValue(p.getRealPC(this)) <= end) { | |
| return new ScopeDesc(this, p.getScopeDecodeOffset(), p.getObjDecodeOffset(), p.getReexecute()); | |
| } | |
| return null; | |
| } | |
| static boolean match_desc(PCDesc pc, int pc_offset, boolean approximate) { | |
| if (!approximate) { | |
| return pc.getPCOffset() == pc_offset; | |
| } else { | |
| PCDesc prev = new PCDesc(pc.getAddress().addOffsetTo(-pcDescSize)); | |
| return prev.getPCOffset() < pc_offset && pc_offset <= pc.getPCOffset(); | |
| } | |
| } | |
| /** This is only for use by the debugging system, and is only | |
| intended for use in the topmost frame, where we are not | |
| guaranteed to be at a PC for which we have a PCDesc. It finds | |
| the ScopeDesc closest to the current PC. NOTE that this may | |
| return NULL for compiled methods which don't have any | |
| ScopeDescs! */ | |
| public ScopeDesc getScopeDescNearDbg(Address pc) { | |
| PCDesc pd = getPCDescNearDbg(pc); | |
| if (pd == null) return null; | |
| return new ScopeDesc(this, pd.getScopeDecodeOffset(), pd.getObjDecodeOffset(), pd.getReexecute()); | |
| } | |
| public Map<sun.jvm.hotspot.debugger.Address, PCDesc> getSafepoints() { | |
| Map<sun.jvm.hotspot.debugger.Address, PCDesc> safepoints = new HashMap<>(); | |
| sun.jvm.hotspot.debugger.Address p = null; | |
| for (p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); | |
| p = p.addOffsetTo(pcDescSize)) { | |
| PCDesc pcDesc = new PCDesc(p); | |
| sun.jvm.hotspot.debugger.Address pc = pcDesc.getRealPC(this); | |
| safepoints.put(pc, pcDesc); | |
| } | |
| return safepoints; | |
| } | |
| // FIXME: add getPCOffsetForBCI() | |
| // FIXME: add embeddedOopAt() | |
| // FIXME: add isDependentOn() | |
| // FIXME: add isPatchableAt() | |
| /** Support for code generation. Only here for proof-of-concept. */ | |
| public int getEntryPointOffset() { return (int) entryOffsetField.getValue(addr); } | |
| public int getVerifiedEntryPointOffset() { return (int) verifiedEntryOffsetField.getValue(addr);} | |
| public static int getOSREntryPointOffset() { return (int) osrEntryPointField.getOffset(); } | |
| public static int getEntryBCIOffset() { return (int) entryBCIField.getOffset(); } | |
| public static int getMethodOffset() { return (int) methodField.getOffset(); } | |
| public void print() { | |
| printOn(System.out); | |
| } | |
| protected void printComponentsOn(PrintStream tty) { | |
| // FIXME: add relocation information | |
| tty.println(" content: [" + contentBegin() + ", " + contentEnd() + "), " + | |
| " code: [" + codeBegin() + ", " + codeEnd() + "), " + | |
| " data: [" + dataBegin() + ", " + dataEnd() + "), " + | |
| " oops: [" + oopsBegin() + ", " + oopsEnd() + "), " + | |
| " frame size: " + getFrameSize()); | |
| } | |
| public String toString() { | |
| Method method = getMethod(); | |
| return "NMethod for " + | |
| method.getMethodHolder().getName().asString() + "." + | |
| method.getName().asString() + method.getSignature().asString() + "==>n" + | |
| super.toString(); | |
| } | |
| public String flagsToString() { | |
| // FIXME need access to flags... | |
| return ""; | |
| } | |
| public String getName() { | |
| Method method = getMethod(); | |
| return "NMethod for " + | |
| method.getMethodHolder().getName().asString() + "." + | |
| method.getName().asString() + | |
| method.getSignature().asString(); | |
| } | |
| //-------------------------------------------------------------------------------- | |
| // Internals only below this point | |
| // | |
| private int getEntryBCI() { return (int) entryBCIField .getValue(addr); } | |
| private int getExceptionOffset() { return (int) exceptionOffsetField .getValue(addr); } | |
| private int getDeoptHandlerOffset() { return (int) deoptHandlerOffsetField .getValue(addr); } | |
| private int getDeoptMhHandlerOffset() { return (int) deoptMhHandlerOffsetField.getValue(addr); } | |
| private int getStubOffset() { return (int) stubOffsetField .getValue(addr); } | |
| private int getScopesDataOffset() { return (int) scopesDataOffsetField .getValue(addr); } | |
| private int getScopesPCsOffset() { return (int) scopesPCsOffsetField .getValue(addr); } | |
| private int getHandlerTableOffset() { return (int) handlerTableOffsetField.getValue(addr); } | |
| private int getNulChkTableOffset() { return (int) nulChkTableOffsetField .getValue(addr); } | |
| private int getCompLevel() { return (int) compLevelField .getValue(addr); } | |
| } |