author | hannesw |
Fri, 24 May 2019 16:53:44 +0200 | |
changeset 58624 | 26867ad686e9 |
parent 54732 | 2d012a75d35c |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.vm.ci.hotspot; |
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import static jdk.vm.ci.common.InitTimer.timer; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.TreeMap; |
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import jdk.vm.ci.common.InitTimer; |
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import jdk.vm.ci.common.JVMCIError; |
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/** |
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* Access to VM configuration data. |
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*/ |
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public final class HotSpotVMConfigStore { |
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/** |
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* Gets the C++ symbols whose addresses are exposed by this object. |
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* |
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* @return an unmodifiable map from the symbol names to their addresses |
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*/ |
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public Map<String, Long> getAddresses() { |
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return Collections.unmodifiableMap(vmAddresses); |
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} |
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/** |
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* Gets the C++ constants exposed by this object. |
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* |
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* @return an unmodifiable map from the names of C++ constants to their values |
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*/ |
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public Map<String, Long> getConstants() { |
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return Collections.unmodifiableMap(vmConstants); |
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} |
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/** |
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* Gets the VM flags exposed by this object. |
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* |
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* @return an unmodifiable map from VM flag names to {@link VMFlag} objects |
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*/ |
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public Map<String, VMFlag> getFlags() { |
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return Collections.unmodifiableMap(vmFlags); |
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} |
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/** |
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* Gets the C++ fields exposed by this object. |
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* |
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* @return an unmodifiable map from VM field names to {@link VMField} objects |
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*/ |
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public Map<String, VMField> getFields() { |
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return Collections.unmodifiableMap(vmFields); |
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} |
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/** |
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* Gets the VM intrinsic descriptions exposed by this object. |
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*/ |
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public List<VMIntrinsicMethod> getIntrinsics() { |
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return Collections.unmodifiableList(vmIntrinsics); |
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} |
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final HashMap<String, VMField> vmFields; |
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final HashMap<String, Long> vmConstants; |
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final HashMap<String, Long> vmAddresses; |
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final HashMap<String, VMFlag> vmFlags; |
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final List<VMIntrinsicMethod> vmIntrinsics; |
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final CompilerToVM compilerToVm; |
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/** |
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* Reads the database of VM info. The return value encodes the info in a nested object array |
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* that is described by the pseudo Java object {@code info} below: |
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* |
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* <pre> |
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* info = [ |
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* VMField[] vmFields, |
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* [String name, Long value, ...] vmConstants, |
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* [String name, Long value, ...] vmAddresses, |
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* VMFlag[] vmFlags |
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* VMIntrinsicMethod[] vmIntrinsics |
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* ] |
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* </pre> |
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*/ |
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@SuppressWarnings("try") |
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HotSpotVMConfigStore(CompilerToVM compilerToVm) { |
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this.compilerToVm = compilerToVm; |
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Object[] data; |
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try (InitTimer t = timer("CompilerToVm readConfiguration")) { |
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data = compilerToVm.readConfiguration(); |
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} |
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if (data.length != 5) { |
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throw new JVMCIError("Expected data.length to be 5, not %d", data.length); |
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} |
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// @formatter:off |
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VMField[] vmFieldsInfo = (VMField[]) data[0]; |
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Object[] vmConstantsInfo = (Object[]) data[1]; |
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Object[] vmAddressesInfo = (Object[]) data[2]; |
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VMFlag[] vmFlagsInfo = (VMFlag[]) data[3]; |
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vmFields = new HashMap<>(vmFieldsInfo.length); |
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vmConstants = new HashMap<>(vmConstantsInfo.length); |
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vmAddresses = new HashMap<>(vmAddressesInfo.length); |
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vmFlags = new HashMap<>(vmFlagsInfo.length); |
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vmIntrinsics = Arrays.asList((VMIntrinsicMethod[]) data[4]); |
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// @formatter:on |
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try (InitTimer t = timer("HotSpotVMConfigStore<init> fill maps")) { |
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for (VMField vmField : vmFieldsInfo) { |
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vmFields.put(vmField.name, vmField); |
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} |
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for (int i = 0; i < vmConstantsInfo.length / 2; i++) { |
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String name = (String) vmConstantsInfo[i * 2]; |
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Long value = (Long) vmConstantsInfo[i * 2 + 1]; |
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vmConstants.put(name, value); |
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} |
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for (int i = 0; i < vmAddressesInfo.length / 2; i++) { |
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String name = (String) vmAddressesInfo[i * 2]; |
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Long value = (Long) vmAddressesInfo[i * 2 + 1]; |
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vmAddresses.put(name, value); |
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} |
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for (VMFlag vmFlag : vmFlagsInfo) { |
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vmFlags.put(vmFlag.name, vmFlag); |
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} |
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} |
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} |
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@Override |
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public String toString() { |
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return String.format("%s[%d fields, %d constants, %d addresses, %d flags, %d intrinsics]", |
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getClass().getSimpleName(), |
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vmFields.size(), |
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vmConstants.size(), |
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vmAddresses.size(), |
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vmFlags.size(), |
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vmIntrinsics.size()); |
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} |
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void printConfig() { |
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CompilerToVM vm = compilerToVm; |
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TreeMap<String, VMField> fields = new TreeMap<>(getFields()); |
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for (VMField field : fields.values()) { |
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if (!field.isStatic()) { |
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printConfigLine(vm, "[vmconfig:instance field] %s %s {offset=%d[0x%x]}%n", field.type, field.name, field.offset, field.offset); |
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} else { |
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String value = field.value == null ? "null" : field.value instanceof Boolean ? field.value.toString() : String.format("%d[0x%x]", field.value, field.value); |
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printConfigLine(vm, "[vmconfig:static field] %s %s = %s {address=0x%x}%n", field.type, field.name, value, field.address); |
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} |
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} |
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TreeMap<String, VMFlag> flags = new TreeMap<>(getFlags()); |
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for (VMFlag flag : flags.values()) { |
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printConfigLine(vm, "[vmconfig:flag] %s %s = %s%n", flag.type, flag.name, flag.value); |
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} |
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TreeMap<String, Long> addresses = new TreeMap<>(getAddresses()); |
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for (Map.Entry<String, Long> e : addresses.entrySet()) { |
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printConfigLine(vm, "[vmconfig:address] %s = %d[0x%x]%n", e.getKey(), e.getValue(), e.getValue()); |
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} |
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TreeMap<String, Long> constants = new TreeMap<>(getConstants()); |
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for (Map.Entry<String, Long> e : constants.entrySet()) { |
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printConfigLine(vm, "[vmconfig:constant] %s = %d[0x%x]%n", e.getKey(), e.getValue(), e.getValue()); |
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} |
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for (VMIntrinsicMethod e : getIntrinsics()) { |
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printConfigLine(vm, "[vmconfig:intrinsic] %d = %s.%s %s%n", e.id, e.declaringClass, e.name, e.descriptor); |
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} |
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} |
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@SuppressFBWarnings(value = "DM_DEFAULT_ENCODING", justification = "no localization here please!") |
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private static void printConfigLine(CompilerToVM vm, String format, Object... args) { |
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String line = String.format(format, args); |
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byte[] lineBytes = line.getBytes(); |
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vm.writeDebugOutput(lineBytes, 0, lineBytes.length, true, true); |
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} |
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} |