| /* |
| * Copyright (c) 2013, 2015, 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 org.graalvm.compiler.hotspot; |
| |
| import static jdk.vm.ci.code.BytecodeFrame.isPlaceholderBci; |
| |
| import org.graalvm.compiler.core.gen.DebugInfoBuilder; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.lir.VirtualStackSlot; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.spi.NodeValueMap; |
| |
| import jdk.vm.ci.code.BytecodeFrame; |
| import jdk.vm.ci.code.StackLockValue; |
| import jdk.vm.ci.code.VirtualObject; |
| import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider; |
| import jdk.vm.ci.meta.JavaValue; |
| |
| /** |
| * Extends {@link DebugInfoBuilder} to allocate the extra debug information required for locks. |
| */ |
| public class HotSpotDebugInfoBuilder extends DebugInfoBuilder { |
| |
| private final HotSpotLockStack lockStack; |
| |
| private int maxInterpreterFrameSize; |
| |
| private HotSpotCodeCacheProvider codeCacheProvider; |
| |
| public HotSpotDebugInfoBuilder(NodeValueMap nodeValueMap, HotSpotLockStack lockStack, HotSpotLIRGenerator gen) { |
| super(nodeValueMap); |
| this.lockStack = lockStack; |
| this.codeCacheProvider = gen.getProviders().getCodeCache(); |
| } |
| |
| public HotSpotLockStack lockStack() { |
| return lockStack; |
| } |
| |
| public int maxInterpreterFrameSize() { |
| return maxInterpreterFrameSize; |
| } |
| |
| @Override |
| protected JavaValue computeLockValue(FrameState state, int lockIndex) { |
| int lockDepth = lockIndex; |
| if (state.outerFrameState() != null) { |
| lockDepth += state.outerFrameState().nestedLockDepth(); |
| } |
| VirtualStackSlot slot = lockStack.makeLockSlot(lockDepth); |
| ValueNode lock = state.lockAt(lockIndex); |
| JavaValue object = toJavaValue(lock); |
| boolean eliminated = object instanceof VirtualObject || state.monitorIdAt(lockIndex) == null; |
| assert state.monitorIdAt(lockIndex) == null || state.monitorIdAt(lockIndex).getLockDepth() == lockDepth; |
| return new StackLockValue(object, slot, eliminated); |
| } |
| |
| @Override |
| protected BytecodeFrame computeFrameForState(FrameState state) { |
| if (isPlaceholderBci(state.bci) && state.bci != BytecodeFrame.BEFORE_BCI) { |
| // This is really a hard error since an incorrect state could crash hotspot |
| throw GraalError.shouldNotReachHere("Invalid state " + BytecodeFrame.getPlaceholderBciName(state.bci) + " " + state); |
| } |
| BytecodeFrame result = super.computeFrameForState(state); |
| maxInterpreterFrameSize = Math.max(maxInterpreterFrameSize, codeCacheProvider.interpreterFrameSize(result)); |
| return result; |
| } |
| } |