Mercurial > hg > graal-jvmci-8
view agent/src/share/classes/sun/jvm/hotspot/debugger/proc/amd64/ProcAMD64Thread.java @ 642:660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp
author | kvn |
---|---|
date | Thu, 12 Mar 2009 10:37:46 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.debugger.proc.amd64; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.debugger.amd64.*; import sun.jvm.hotspot.debugger.proc.*; import sun.jvm.hotspot.utilities.*; public class ProcAMD64Thread implements ThreadProxy { private ProcDebugger debugger; private int id; public ProcAMD64Thread(ProcDebugger debugger, Address addr) { this.debugger = debugger; // FIXME: the size here should be configurable. However, making it // so would produce a dependency on the "types" package from the // debugger package, which is not desired. this.id = (int) addr.getCIntegerAt(0, 4, true); } public ProcAMD64Thread(ProcDebugger debugger, long id) { this.debugger = debugger; this.id = (int) id; } public ThreadContext getContext() throws IllegalThreadStateException { ProcAMD64ThreadContext context = new ProcAMD64ThreadContext(debugger); long[] regs = debugger.getThreadIntegerRegisterSet(id); if (Assert.ASSERTS_ENABLED) { Assert.that(regs.length == AMD64ThreadContext.NPRGREG, "size mismatch"); } for (int i = 0; i < regs.length; i++) { context.setRegister(i, regs[i]); } return context; } public boolean canSetContext() throws DebuggerException { return false; } public void setContext(ThreadContext context) throws IllegalThreadStateException, DebuggerException { throw new DebuggerException("Unimplemented"); } public String toString() { return "t@" + id; } public boolean equals(Object obj) { if ((obj == null) || !(obj instanceof ProcAMD64Thread)) { return false; } return (((ProcAMD64Thread) obj).id == id); } public int hashCode() { return id; } }