Mercurial > hg > graal-jvmci-8
view agent/src/share/classes/sun/jvm/hotspot/oops/AccessFlags.java @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
author | minqi |
---|---|
date | Mon, 12 Nov 2012 14:03:53 -0800 |
parents | da91efe96a93 |
children |
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/* * Copyright (c) 2000, 2012, 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.oops; import sun.jvm.hotspot.runtime.ClassConstants; import java.io.*; public class AccessFlags implements /* imports */ ClassConstants { public AccessFlags(long flags) { this.flags = flags; } private long flags; // Java access flags public boolean isPublic () { return (flags & JVM_ACC_PUBLIC ) != 0; } public boolean isPrivate () { return (flags & JVM_ACC_PRIVATE ) != 0; } public boolean isProtected () { return (flags & JVM_ACC_PROTECTED ) != 0; } public boolean isStatic () { return (flags & JVM_ACC_STATIC ) != 0; } public boolean isFinal () { return (flags & JVM_ACC_FINAL ) != 0; } public boolean isSynchronized() { return (flags & JVM_ACC_SYNCHRONIZED) != 0; } public boolean isSuper () { return (flags & JVM_ACC_SUPER ) != 0; } public boolean isVolatile () { return (flags & JVM_ACC_VOLATILE ) != 0; } public boolean isBridge () { return (flags & JVM_ACC_BRIDGE ) != 0; } public boolean isTransient () { return (flags & JVM_ACC_TRANSIENT ) != 0; } public boolean isVarArgs () { return (flags & JVM_ACC_VARARGS ) != 0; } public boolean isNative () { return (flags & JVM_ACC_NATIVE ) != 0; } public boolean isEnum () { return (flags & JVM_ACC_ENUM ) != 0; } public boolean isAnnotation () { return (flags & JVM_ACC_ANNOTATION ) != 0; } public boolean isInterface () { return (flags & JVM_ACC_INTERFACE ) != 0; } public boolean isAbstract () { return (flags & JVM_ACC_ABSTRACT ) != 0; } public boolean isStrict () { return (flags & JVM_ACC_STRICT ) != 0; } public boolean isSynthetic () { return (flags & JVM_ACC_SYNTHETIC ) != 0; } public long getValue () { return flags; } // Hotspot internal flags // Method* flags public boolean isMonitorMatching () { return (flags & JVM_ACC_MONITOR_MATCH ) != 0; } public boolean hasMonitorBytecodes () { return (flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; } public boolean hasLoops () { return (flags & JVM_ACC_HAS_LOOPS ) != 0; } public boolean loopsFlagInit () { return (flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; } public boolean queuedForCompilation() { return (flags & JVM_ACC_QUEUED ) != 0; } public boolean isNotOsrCompilable () { return (flags & JVM_ACC_NOT_OSR_COMPILABLE ) != 0; } public boolean hasLineNumberTable () { return (flags & JVM_ACC_HAS_LINE_NUMBER_TABLE ) != 0; } public boolean hasCheckedExceptions() { return (flags & JVM_ACC_HAS_CHECKED_EXCEPTIONS ) != 0; } public boolean hasJsrs () { return (flags & JVM_ACC_HAS_JSRS ) != 0; } public boolean isObsolete () { return (flags & JVM_ACC_IS_OBSOLETE ) != 0; } // Klass* flags public boolean hasMirandaMethods () { return (flags & JVM_ACC_HAS_MIRANDA_METHODS ) != 0; } public boolean hasVanillaConstructor() { return (flags & JVM_ACC_HAS_VANILLA_CONSTRUCTOR) != 0; } public boolean hasFinalizer () { return (flags & JVM_ACC_HAS_FINALIZER ) != 0; } public boolean isCloneable () { return (flags & JVM_ACC_IS_CLONEABLE ) != 0; } // Klass* and Method* flags public boolean hasLocalVariableTable() { return (flags & JVM_ACC_HAS_LOCAL_VARIABLE_TABLE ) != 0; } // field flags public boolean fieldAccessWatched () { return (flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; } public boolean fieldModificationWatched() { return (flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; } public boolean fieldHasGenericSignature() { return (flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE)!= 0; } public void printOn(PrintStream tty) { // prints only .class flags and not the hotspot internal flags if (isPublic ()) tty.print("public " ); if (isPrivate ()) tty.print("private " ); if (isProtected ()) tty.print("protected " ); if (isStatic ()) tty.print("static " ); if (isFinal ()) tty.print("final " ); if (isSynchronized()) tty.print("synchronized "); if (isVolatile ()) tty.print("volatile " ); if (isBridge ()) tty.print("bridge " ); if (isTransient ()) tty.print("transient " ); if (isVarArgs ()) tty.print("varargs " ); if (isNative ()) tty.print("native " ); if (isEnum ()) tty.print("enum " ); if (isInterface ()) tty.print("interface " ); if (isAbstract ()) tty.print("abstract " ); if (isStrict ()) tty.print("strict " ); if (isSynthetic ()) tty.print("synthetic " ); } // get flags written to .class files public int getStandardFlags() { return (int) (flags & JVM_ACC_WRITTEN_FLAGS); } }