| /* |
| * Copyright (c) 2016, 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 jdk.vm.ci.hotspot; |
| |
| import static jdk.vm.ci.common.InitTimer.timer; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import jdk.vm.ci.common.InitTimer; |
| |
| /** |
| * Access to VM configuration data. |
| */ |
| public final class HotSpotVMConfigStore { |
| |
| /** |
| * Gets the C++ symbols whose addresses are exposed by this object. |
| * |
| * @return an unmodifiable map from the symbol names to their addresses |
| */ |
| public Map<String, Long> getAddresses() { |
| return Collections.unmodifiableMap(vmAddresses); |
| } |
| |
| /** |
| * Gets the C++ constants exposed by this object. |
| * |
| * @return an unmodifiable map from the names of C++ constants to their values |
| */ |
| public Map<String, Long> getConstants() { |
| return Collections.unmodifiableMap(vmConstants); |
| } |
| |
| /** |
| * Gets the VM flags exposed by this object. |
| * |
| * @return an unmodifiable map from VM flag names to {@link VMFlag} objects |
| */ |
| public Map<String, VMFlag> getFlags() { |
| return Collections.unmodifiableMap(vmFlags); |
| } |
| |
| /** |
| * Gets the C++ fields exposed by this object. |
| * |
| * @return an unmodifiable map from VM field names to {@link VMField} objects |
| */ |
| public Map<String, VMField> getFields() { |
| return Collections.unmodifiableMap(vmFields); |
| } |
| |
| /** |
| * Gets the VM intrinsic descriptions exposed by this object. |
| */ |
| public List<VMIntrinsicMethod> getIntrinsics() { |
| return Collections.unmodifiableList(vmIntrinsics); |
| } |
| |
| final HashMap<String, VMField> vmFields; |
| final HashMap<String, Long> vmConstants; |
| final HashMap<String, Long> vmAddresses; |
| final HashMap<String, VMFlag> vmFlags; |
| final List<VMIntrinsicMethod> vmIntrinsics; |
| final CompilerToVM compilerToVm; |
| |
| /** |
| * Reads the database of VM info. The return value encodes the info in a nested object array |
| * that is described by the pseudo Java object {@code info} below: |
| * |
| * <pre> |
| * info = [ |
| * VMField[] vmFields, |
| * [String name, Long value, ...] vmConstants, |
| * [String name, Long value, ...] vmAddresses, |
| * VMFlag[] vmFlags |
| * VMIntrinsicMethod[] vmIntrinsics |
| * ] |
| * </pre> |
| */ |
| @SuppressWarnings("try") |
| HotSpotVMConfigStore(CompilerToVM compilerToVm) { |
| this.compilerToVm = compilerToVm; |
| Object[] data; |
| try (InitTimer t = timer("CompilerToVm readConfiguration")) { |
| data = compilerToVm.readConfiguration(); |
| } |
| assert data.length == 5 : data.length; |
| |
| // @formatter:off |
| VMField[] vmFieldsInfo = (VMField[]) data[0]; |
| Object[] vmConstantsInfo = (Object[]) data[1]; |
| Object[] vmAddressesInfo = (Object[]) data[2]; |
| VMFlag[] vmFlagsInfo = (VMFlag[]) data[3]; |
| |
| vmFields = new HashMap<>(vmFieldsInfo.length); |
| vmConstants = new HashMap<>(vmConstantsInfo.length); |
| vmAddresses = new HashMap<>(vmAddressesInfo.length); |
| vmFlags = new HashMap<>(vmFlagsInfo.length); |
| vmIntrinsics = Arrays.asList((VMIntrinsicMethod[]) data[4]); |
| // @formatter:on |
| |
| try (InitTimer t = timer("HotSpotVMConfigStore<init> fill maps")) { |
| for (VMField vmField : vmFieldsInfo) { |
| vmFields.put(vmField.name, vmField); |
| } |
| |
| for (int i = 0; i < vmConstantsInfo.length / 2; i++) { |
| String name = (String) vmConstantsInfo[i * 2]; |
| Long value = (Long) vmConstantsInfo[i * 2 + 1]; |
| vmConstants.put(name, value); |
| } |
| |
| for (int i = 0; i < vmAddressesInfo.length / 2; i++) { |
| String name = (String) vmAddressesInfo[i * 2]; |
| Long value = (Long) vmAddressesInfo[i * 2 + 1]; |
| vmAddresses.put(name, value); |
| } |
| |
| for (VMFlag vmFlag : vmFlagsInfo) { |
| vmFlags.put(vmFlag.name, vmFlag); |
| } |
| } |
| } |
| } |