Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotVmSymbols.java @ 16745:bda327903f96
Truffle: turn off class instance stamps by default.
author | Christian Humer <christian.humer@gmail.com> |
---|---|
date | Mon, 11 Aug 2014 15:44:52 +0200 |
parents | 42eaa579e134 |
children | c538c2c6b7e2 |
line wrap: on
line source
/* * Copyright (c) 2014, 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.graal.hotspot; import static com.oracle.graal.compiler.common.UnsafeAccess.*; import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*; import sun.misc.*; /** * Class to access the C++ {@code vmSymbols} table. */ public final class HotSpotVmSymbols { /** * Returns the symbol in the {@code vmSymbols} table at position {@code index} as {@link String} * . * * @param index position in the symbol table * @return the symbol at position id */ public static String symbolAt(int index) { HotSpotGraalRuntime runtime = runtime(); HotSpotVMConfig config = runtime.getConfig(); assert config.vmSymbolsFirstSID <= index && index < config.vmSymbolsSIDLimit : "index " + index + " is out of bounds"; assert config.symbolPointerSize == Unsafe.ADDRESS_SIZE : "the following address read is broken"; return runtime.getCompilerToVM().getSymbol(unsafe.getAddress(config.vmSymbolsSymbols + index * config.symbolPointerSize)); } }