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JDK 11 jdk.hotspot.agent.jmod - Hotspot Agent Module
JDK 11 jdk.hotspot.agent.jmod is the JMOD file for JDK 11 Hotspot Agent module.
JDK 11 Hotspot Agent module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.hotspot.agent.jmod.
JDK 11 Hotspot Agent module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.
JDK 11 Hotspot Agent module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.hotspot.agent.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ sun/jvm/hotspot/compiler/ImmutableOopMapSet.java
/* * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * */ package sun.jvm.hotspot.compiler; import java.util.*; import sun.jvm.hotspot.code.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; public class ImmutableOopMapSet extends VMObject { private static final boolean DEBUG = System.getProperty("sun.jvm.hotspot.compiler.ImmutableOopMapSet.DEBUG") != null; private static CIntegerField countField; private static CIntegerField sizeField; private static AddressField omDataField; private static int REG_COUNT; private static int SAVED_ON_ENTRY_REG_COUNT; private static int C_SAVED_ON_ENTRY_REG_COUNT; private static long classSize; private static class MyVisitor implements OopMapVisitor { private AddressVisitor addressVisitor; public MyVisitor(AddressVisitor oopVisitor) { setAddressVisitor(oopVisitor); } public void setAddressVisitor(AddressVisitor addressVisitor) { this.addressVisitor = addressVisitor; } public void visitOopLocation(Address oopAddr) { addressVisitor.visitAddress(oopAddr); } public void visitDerivedOopLocation(Address baseOopAddr, Address derivedOopAddr) { if (VM.getVM().isClientCompiler()) { Assert.that(false, "should not reach here"); } else if (VM.getVM().isServerCompiler() && VM.getVM().useDerivedPointerTable()) { Assert.that(false, "FIXME: add derived pointer table"); } } public void visitNarrowOopLocation(Address narrowOopAddr) { addressVisitor.visitCompOopAddress(narrowOopAddr); } } 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("ImmutableOopMapSet"); countField = type.getCIntegerField("_count"); sizeField = type.getCIntegerField("_size"); classSize = type.getSize(); if (!VM.getVM().isCore()) { REG_COUNT = db.lookupIntConstant("REG_COUNT").intValue(); if (VM.getVM().isServerCompiler()) { SAVED_ON_ENTRY_REG_COUNT = (int) db.lookupIntConstant("SAVED_ON_ENTRY_REG_COUNT").intValue(); C_SAVED_ON_ENTRY_REG_COUNT = (int) db.lookupIntConstant("C_SAVED_ON_ENTRY_REG_COUNT").intValue(); } } } public ImmutableOopMapSet(Address addr) { super(addr); } /** * Returns the number of OopMaps in this ImmutableOopMapSet */ public int getCount() { return (int) countField.getValue(addr); } private Address dataStart() { return (pairStart().addOffsetTo(ImmutableOopMapPair.classSize() * getCount())); } private Address pairStart() { return addr.addOffsetTo(ImmutableOopMapSet.classSize); } public ImmutableOopMapPair pairAt(int index) { Assert.that((index >= 0) && (index < getCount()), "bad index"); return new ImmutableOopMapPair(pairStart().addOffsetTo(index * ImmutableOopMapPair.classSize())); } /** * returns the OopMap at a given index */ public ImmutableOopMap getMapAt(int index) { if (Assert.ASSERTS_ENABLED) { Assert.that((index >= 0) && (index <= getCount()), "bad index"); } ImmutableOopMapPair immutableOopMapPair = pairAt(index); return getMap(immutableOopMapPair); } public ImmutableOopMap findMapAtOffset(long pcOffset, boolean debugging) { int i; int len = getCount(); if (Assert.ASSERTS_ENABLED) { Assert.that(len > 0, "must have pointer maps"); } // Scan through oopmaps. Stop when current offset is either equal or greater // than the one we are looking for. for (i = 0; i < len; i++) { if (pairAt(i).getPC() >= pcOffset) { break; } } if (!debugging) { if (Assert.ASSERTS_ENABLED) { Assert.that(i < len, "oopmap not found for pcOffset = " + pcOffset + "; len = " + len); Assert.that(pairAt(i).getPC() == pcOffset, "oopmap not found"); } } else { if (i == len) { if (DEBUG) { System.out.println("can't find oopmap at " + pcOffset); System.out.print("Oopmap offsets are [ "); for (i = 0; i < len; i++) { System.out.print(pairAt(i).getPC()); } System.out.println("]"); } i = len - 1; return getMapAt(i); } } ImmutableOopMap m = getMapAt(i); return m; } /** * Visitation -- iterates through the frame for a compiled method. * This is a very generic mechanism that requires the Address to be * dereferenced by the callee. Other, more specialized, visitation * mechanisms are given below. */ public static void oopsDo(Frame fr, CodeBlob cb, RegisterMap regMap, AddressVisitor oopVisitor, boolean debugging) { allDo(fr, cb, regMap, new MyVisitor(oopVisitor), debugging); } /** * Note that there are 4 required AddressVisitors: one for oops, * one for derived oops, one for values, and one for dead values */ public static void allDo(Frame fr, CodeBlob cb, RegisterMap regMap, OopMapVisitor visitor, boolean debugging) { if (Assert.ASSERTS_ENABLED) { CodeBlob tmpCB = VM.getVM().getCodeCache().findBlob(fr.getPC()); Assert.that(tmpCB != null && cb.equals(tmpCB), "wrong codeblob passed in"); } ImmutableOopMapSet maps = cb.getOopMaps(); ImmutableOopMap map = cb.getOopMapForReturnAddress(fr.getPC(), debugging); if (Assert.ASSERTS_ENABLED) { Assert.that(map != null, "no ptr map found"); } // handle derived pointers first (otherwise base pointer may be // changed before derived pointer offset has been collected) OopMapValue omv; { for (OopMapStream oms = new OopMapStream(map, OopMapValue.OopTypes.DERIVED_OOP_VALUE); !oms.isDone(); oms.next()) { if (VM.getVM().isClientCompiler()) { Assert.that(false, "should not reach here"); } omv = oms.getCurrent(); Address loc = fr.oopMapRegToLocation(omv.getReg(), regMap); if (loc != null) { Address baseLoc = fr.oopMapRegToLocation(omv.getContentReg(), regMap); Address derivedLoc = loc; visitor.visitDerivedOopLocation(baseLoc, derivedLoc); } } } // We want narow oop and oop oop_types OopMapValue.OopTypes[] values = new OopMapValue.OopTypes[] { OopMapValue.OopTypes.OOP_VALUE, OopMapValue.OopTypes.NARROWOOP_VALUE }; { for (OopMapStream oms = new OopMapStream(map, values); !oms.isDone(); oms.next()) { omv = oms.getCurrent(); Address loc = fr.oopMapRegToLocation(omv.getReg(), regMap); if (loc != null) { if (omv.getType() == OopMapValue.OopTypes.OOP_VALUE) { // This assert commented out because this will be useful // to detect in the debugging system // assert(Universe::is_heap_or_null(*loc), "found non oop pointer"); visitor.visitOopLocation(loc); } else if (omv.getType() == OopMapValue.OopTypes.NARROWOOP_VALUE) { visitor.visitNarrowOopLocation(loc); } } } } } /** * Update callee-saved register info for the following frame. * Should only be called in non-core builds. */ public static void updateRegisterMap(Frame fr, CodeBlob cb, RegisterMap regMap, boolean debugging) { if (Assert.ASSERTS_ENABLED) { Assert.that(!VM.getVM().isCore(), "non-core builds only"); } if (!VM.getVM().isDebugging()) { if (Assert.ASSERTS_ENABLED) { ImmutableOopMapSet maps = cb.getOopMaps(); Assert.that((maps != null) && (maps.getCount() > 0), "found null or empty ImmutableOopMapSet for CodeBlob"); } } else { // Hack for some topmost frames that have been found with empty // OopMapSets. (Actually have not seen the null case, but don't // want to take any chances.) See HSDB.showThreadStackMemory(). ImmutableOopMapSet maps = cb.getOopMaps(); if ((maps == null) || (maps.getCount() == 0)) { return; } } // Check if caller must update oop argument regMap.setIncludeArgumentOops(cb.callerMustGCArguments()); int nofCallee = 0; Address[] locs = new Address[2 * REG_COUNT + 1]; VMReg[] regs = new VMReg[2 * REG_COUNT + 1]; // ("+1" because REG_COUNT might be zero) // Scan through oopmap and find location of all callee-saved registers // (we do not do update in place, since info could be overwritten) ImmutableOopMap map = cb.getOopMapForReturnAddress(fr.getPC(), debugging); if (Assert.ASSERTS_ENABLED) { Assert.that(map != null, "no ptr map found"); } OopMapValue omv = null; for (OopMapStream oms = new OopMapStream(map, OopMapValue.OopTypes.CALLEE_SAVED_VALUE); !oms.isDone(); oms.next()) { omv = oms.getCurrent(); if (Assert.ASSERTS_ENABLED) { Assert.that(nofCallee < 2 * REG_COUNT, "overflow"); } regs[nofCallee] = omv.getContentReg(); locs[nofCallee] = fr.oopMapRegToLocation(omv.getReg(), regMap); nofCallee++; } // Check that runtime stubs save all callee-saved registers // After adapter frames were deleted C2 doesn't use callee save registers at present if (Assert.ASSERTS_ENABLED) { if (VM.getVM().isServerCompiler()) { Assert.that(!cb.isRuntimeStub() || (nofCallee >= SAVED_ON_ENTRY_REG_COUNT || nofCallee >= C_SAVED_ON_ENTRY_REG_COUNT), "must save all"); } } // Copy found callee-saved register to reg_map for (int i = 0; i < nofCallee; i++) { regMap.setLocation(regs[i], locs[i]); } } public ImmutableOopMapPair getPairAt(int index) { return pairAt(index); } private int getSize() { return (int) sizeField.getValue(addr); } public ImmutableOopMap getMap(ImmutableOopMapPair pair) { Assert.that(pair.getOffset() < getSize(), "boundary check: this: " + this + " offset: " + pair); return new ImmutableOopMap(dataStart().addOffsetTo(pair.getOffset())); } public String toString() { StringBuilder builder = new StringBuilder(); builder.append("Set{ ") .append("addr = ").append(addr) .append(", count = ").append(getCount()) .append(", size = ").append(getSize()) .append(", pairs = ["); for (int i = 0; i < getCount(); ++i) { builder.append(getPairAt(i)); } builder.append("]"); return builder.toString(); } }
⏎ sun/jvm/hotspot/compiler/ImmutableOopMapSet.java
Or download all of them as a single archive file:
File name: jdk.hotspot.agent-11.0.1-src.zip File size: 1243786 bytes Release date: 2018-11-04 Download
⇒ JDK 11 jdk.httpserver.jmod - HTTP Server Module
2020-02-29, 158684👍, 0💬
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