--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/jvmci/compilerToVM/InitializeConfigurationTest.java Thu Oct 08 12:49:30 2015 -1000
@@ -0,0 +1,231 @@
+/*
+ * Copyright (c) 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.
+ */
+
+/*
+ * @test
+ * @bug 8136421
+ * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
+ * @library / /testlibrary
+ * @compile ../common/CompilerToVMHelper.java
+ * @build compiler.jvmci.compilerToVM.InitializeConfigurationTest
+ * @run main ClassFileInstaller
+ * jdk.vm.ci.hotspot.CompilerToVMHelper
+ * @run main/othervm -Xbootclasspath/a:.
+ * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
+ * compiler.jvmci.compilerToVM.InitializeConfigurationTest
+ */
+
+package compiler.jvmci.compilerToVM;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.Objects;
+import java.util.function.Consumer;
+import jdk.vm.ci.hotspot.CompilerToVMHelper;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.Utils;
+import sun.misc.Unsafe;
+
+public class InitializeConfigurationTest {
+ private static final Unsafe UNSAFE = Utils.getUnsafe();
+
+ public static void main(String args[]) {
+ new InitializeConfigurationTest().runTest(generateTestCases());
+ }
+
+ private static List<TestCase> generateTestCases() {
+ List<TestCase> result = new ArrayList<>();
+ result.add(new TestCase("CodeCache", "_high_bound", "address",
+ InitializeConfigurationTest::verifyLongIsNotZero));
+ result.add(new TestCase("StubRoutines", "_jint_arraycopy", "address",
+ InitializeConfigurationTest::verifyLongIsNotZero));
+ return result;
+ }
+
+ private static void verifyLongIsNotZero(Object o) {
+ Asserts.assertNotNull(o, "Got null value");
+ Asserts.assertEQ(o.getClass(), Long.class, "Unexpected value type");
+ Asserts.assertNE(o, 0L, "Got null address");
+ }
+
+ private void runTest(List<TestCase> tcases) {
+ VMStructDataReader reader = new VMStructDataReader(
+ CompilerToVMHelper.initializeConfiguration());
+ while (reader.hasNext()) {
+ VMFieldData data = reader.next();
+ for (TestCase tcase : tcases) {
+ tcase.check(data);
+ }
+ }
+ // now check if all passed
+ for (TestCase tcase: tcases) {
+ Asserts.assertTrue(tcase.isFound(), "Case failed: " + tcase);
+ }
+ }
+
+ private static class VMStructDataReader implements Iterator<VMFieldData> {
+ // see jvmciCompilerToVM:105 static uintptr_t ciHotSpotVMData[28];
+ private static final int HOTSPOT_VM_DATA_INDEX_COUNT = 28;
+ private final long addresses[];
+ private final long vmStructsBase;
+ private final long entityNameFieldOffset;
+ private final long nameFieldOffset;
+ private final long typeStringFieldOffset;
+ private final long addressOffset;
+ private final long entrySize;
+ private long nextElementAddress;
+ private VMFieldData nextElement;
+
+ public VMStructDataReader(long gHotSpotVMData) {
+ Asserts.assertNE(gHotSpotVMData, 0L, "Got null base address");
+ addresses = new long[HOTSPOT_VM_DATA_INDEX_COUNT];
+ for (int i = 0; i < HOTSPOT_VM_DATA_INDEX_COUNT; i++) {
+ addresses[i] = UNSAFE.getAddress(
+ gHotSpotVMData + Unsafe.ADDRESS_SIZE * i);
+ }
+ vmStructsBase = addresses[0];
+ entityNameFieldOffset = addresses[1];
+ nameFieldOffset = addresses[2];
+ typeStringFieldOffset = addresses[3];
+ addressOffset = addresses[6];
+ entrySize = addresses[7];
+ nextElementAddress = vmStructsBase;
+ nextElement = read();
+ }
+
+ @Override
+ public boolean hasNext() {
+ return nextElement != null;
+ }
+
+ @Override
+ public VMFieldData next() {
+ if (nextElement == null) {
+ throw new NoSuchElementException("Next element is null");
+ }
+ VMFieldData toReturn = nextElement;
+ nextElementAddress += entrySize;
+ nextElement = read();
+ return toReturn;
+ }
+
+ private VMFieldData read() {
+ String entityFieldName = readCString(
+ UNSAFE.getAddress(nextElementAddress + nameFieldOffset));
+ if (entityFieldName == null) {
+ return null;
+ }
+ String fieldType = readCString(UNSAFE.getAddress(
+ nextElementAddress + typeStringFieldOffset));
+ String entityName = readCString(UNSAFE.getAddress(
+ nextElementAddress + entityNameFieldOffset));
+ Object value;
+ if ("address".equals(fieldType)) {
+ long address = UNSAFE.getAddress(
+ nextElementAddress + addressOffset);
+ value = address;
+ } else {
+ // non-address cases are not supported
+ value = null;
+ }
+ return new VMFieldData(entityName, entityFieldName, fieldType,
+ value);
+ }
+
+ private static String readCString(long address) {
+ if (address == 0) {
+ return null;
+ }
+ StringBuilder sb = new StringBuilder();
+ for (int i = 0;; i++) {
+ char c = (char) UNSAFE.getByte(address + i);
+ if (c == 0) {
+ break;
+ }
+ sb.append(c);
+ }
+ return sb.toString();
+ }
+ }
+
+ private static class VMFieldData {
+ public final String entityFieldName;
+ public final String entityName;
+ public final String fieldType;
+ public final Object value;
+
+ private VMFieldData(String entityName, String entityFieldName,
+ String fieldType, Object value) {
+ this.entityName = entityName;
+ this.entityFieldName = entityFieldName;
+ this.fieldType = fieldType;
+ this.value = value;
+ }
+ }
+
+ private static class TestCase {
+ public final String entityName;
+ public final String fieldType;
+ public final String entityFieldName;
+ public final Consumer consumer;
+ private boolean found;
+
+ public TestCase(String entityName, String entityFieldName,
+ String fieldType, Consumer predicate) {
+ Objects.requireNonNull(entityName, "Got null entityName");
+ Objects.requireNonNull(entityFieldName, "Got null entityFieldName");
+ Objects.requireNonNull(fieldType, "Got null type");
+ if (!"address".equals(fieldType)) {
+ throw new Error("TESTBUG: unsupported testcase with fieldType="
+ + fieldType);
+ }
+ this.entityName = entityName;
+ this.fieldType = fieldType;
+ this.entityFieldName = entityFieldName;
+ this.consumer = predicate;
+ this.found = false;
+ }
+
+ public void check(VMFieldData data) {
+ if (entityFieldName.equals(data.entityFieldName)
+ && entityName.equals(data.entityName)
+ && fieldType.equals(data.fieldType)) {
+ Asserts.assertFalse(found, "Found 2 entries of " + this);
+ found = true;
+ consumer.accept(data.value);
+ }
+ }
+
+ @Override
+ public String toString() {
+ return "CASE: entityName=" + entityName + " entityFieldName="
+ + entityFieldName + " fieldType=" + fieldType;
+ }
+
+ public boolean isFound() {
+ return found;
+ }
+ }
+}