Mercurial > hg > graal-compiler
view graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotNmethod.java @ 21744:d62a384b2415
improved formatting of snippet counters
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 05 Jun 2015 11:58:49 +0200 |
parents | f5b549811bac |
children |
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/* * Copyright (c) 2011, 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 com.oracle.jvmci.hotspot; import static com.oracle.jvmci.hotspot.HotSpotJVMCIRuntime.*; import com.oracle.jvmci.code.*; import com.oracle.jvmci.meta.*; /** * Implementation of {@link InstalledCode} for code installed as an nmethod. The nmethod stores a * weak reference to an instance of this class. This is necessary to keep the nmethod from being * unloaded while the associated {@link HotSpotNmethod} instance is alive. * <p> * Note that there is no (current) way for the reference from an nmethod to a {@link HotSpotNmethod} * instance to be anything but weak. This is due to the fact that HotSpot does not treat nmethods as * strong GC roots. */ public class HotSpotNmethod extends HotSpotInstalledCode { /** * This (indirect) Method* reference is safe since class redefinition preserves all methods * associated with nmethods in the code cache. */ private final HotSpotResolvedJavaMethod method; private final boolean isDefault; private final boolean isExternal; public HotSpotNmethod(HotSpotResolvedJavaMethod method, String name, boolean isDefault) { this(method, name, isDefault, false); } public HotSpotNmethod(HotSpotResolvedJavaMethod method, String name, boolean isDefault, boolean isExternal) { super(name); this.method = method; this.isDefault = isDefault; this.isExternal = isExternal; } public boolean isDefault() { return isDefault; } public boolean isExternal() { return isExternal; } public ResolvedJavaMethod getMethod() { return method; } @Override public void invalidate() { runtime().getCompilerToVM().invalidateInstalledCode(this); } @Override public String toString() { return String.format("InstalledNmethod[method=%s, codeBlob=0x%x, isDefault=%b, name=%s]", method, getAddress(), isDefault, name); } protected boolean checkThreeObjectArgs() { assert method.getSignature().getParameterCount(!method.isStatic()) == 3; assert method.getSignature().getParameterKind(0) == Kind.Object; assert method.getSignature().getParameterKind(1) == Kind.Object; assert !method.isStatic() || method.getSignature().getParameterKind(2) == Kind.Object; return true; } private boolean checkArgs(Object... args) { JavaType[] sig = method.toParameterTypes(); assert args.length == sig.length : method.format("%H.%n(%p): expected ") + sig.length + " args, got " + args.length; for (int i = 0; i < sig.length; i++) { Object arg = args[i]; if (arg == null) { assert sig[i].getKind() == Kind.Object : method.format("%H.%n(%p): expected arg ") + i + " to be Object, not " + sig[i]; } else if (sig[i].getKind() != Kind.Object) { assert sig[i].getKind().toBoxedJavaClass() == arg.getClass() : method.format("%H.%n(%p): expected arg ") + i + " to be " + sig[i] + ", not " + arg.getClass(); } } return true; } @Override public Object executeVarargs(Object... args) throws InvalidInstalledCodeException { assert checkArgs(args); assert !isExternal(); return runtime().getCompilerToVM().executeCompiledMethodVarargs(args, this); } @Override public long getStart() { return isValid() ? super.getStart() : 0; } }