Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCJmplInstruction.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
author | tonyp |
---|---|
date | Tue, 20 Sep 2011 09:59:59 -0400 |
parents | c18cbe5936b8 |
children |
line wrap: on
line source
/* * Copyright (c) 2002, 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.asm.sparc; import sun.jvm.hotspot.asm.*; public class SPARCJmplInstruction extends SPARCInstruction implements BranchInstruction { final protected SPARCRegisterIndirectAddress addr; final protected SPARCRegister rd; protected SPARCJmplInstruction(String name, SPARCRegisterIndirectAddress addr, SPARCRegister rd) { super(name); this.addr = addr; this.rd = rd; } public SPARCJmplInstruction(SPARCRegisterIndirectAddress addr, SPARCRegister rd) { this("jmpl", addr, rd); } protected String getDescription() { StringBuffer buf = new StringBuffer(); String addrStr = addr.toString(); // remove '[' & ']' from address addrStr = addrStr.substring(1, addrStr.length() - 1); if (rd == SPARCRegisters.G0) { buf.append("jmp"); buf.append(spaces); buf.append(addrStr); } else { buf.append(getName()); buf.append(spaces); buf.append(addrStr); buf.append(comma); buf.append(rd.toString()); } return buf.toString(); } public String asString(long currentPc, SymbolFinder symFinder) { return getDescription(); } public Address getBranchDestination() { return addr; } public SPARCRegister getReturnAddressRegister() { return rd; } public boolean isAnnuledBranch() { return false; } public boolean isBranch() { return true; } public boolean isConditional() { return false; } }