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/*
* 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.
*/
/*
* @test
* @bug 8138708
* @requires vm.jvmci
* @library /test/lib /
* @library ../common/patches
* @modules java.base/jdk.internal.misc
* java.base/jdk.internal.reflect
* java.base/jdk.internal.org.objectweb.asm
* java.base/jdk.internal.org.objectweb.asm.tree
* jdk.internal.vm.ci/jdk.vm.ci.hotspot
* jdk.internal.vm.ci/jdk.vm.ci.meta
* jdk.internal.vm.ci/jdk.vm.ci.runtime
*
* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -Djvmci.Compiler=null
* compiler.jvmci.compilerToVM.ResolveFieldInPoolTest
*/
package compiler.jvmci.compilerToVM;
import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
import jdk.internal.misc.Unsafe;
import jdk.internal.org.objectweb.asm.Opcodes;
import jdk.test.lib.Asserts;
import jdk.vm.ci.hotspot.CompilerToVMHelper;
import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
import jdk.vm.ci.meta.ConstantPool;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_FIELDREF;
/**
* Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveFieldInPool} method
*/
public class ResolveFieldInPoolTest {
private static final Unsafe UNSAFE = Unsafe.getUnsafe();
public static void main(String[] args) throws Exception {
Map<ConstantTypes, Validator> typeTests = new HashMap<>();
typeTests.put(CONSTANT_FIELDREF, ResolveFieldInPoolTest::validate);
ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
testCase.test();
// The next "Class.forName" and repeating "testCase.test()"
// are here for the following reason.
// The first test run is without dummy class initialization,
// which means no constant pool cache exists.
// The second run is with initialized class (with constant pool cache available).
// Some CompilerToVM methods require different input
// depending on whether CP cache exists or not.
for (DummyClasses dummy : DummyClasses.values()) {
Class.forName(dummy.klass.getName());
}
testCase.test();
}
private static void validate(ConstantPool constantPoolCTVM,
ConstantTypes cpType,
DummyClasses dummyClass,
int cpi) {
TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);
if (entry == null) {
return;
}
int index = cpi;
String cached = "";
int cpci = dummyClass.getCPCacheIndex(cpi);
if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {
index = cpci;
cached = "cached ";
}
for (int j = 0; j < entry.opcodes.length; j++) {
int[] info = new int[3];
HotSpotResolvedObjectType fieldToVerify
= CompilerToVMHelper.resolveFieldInPool(constantPoolCTVM,
index,
entry.methods == null ? null : entry.methods[j],
entry.opcodes[j],
info);
String msg = String.format("Object returned by resolveFieldInPool method"
+ " for %sindex %d should not be null",
cached,
index);
Asserts.assertNotNull(fieldToVerify, msg);
String classNameToRefer = entry.klass;
String fieldToVerifyKlassToString = fieldToVerify.klass().toValueString();
if (!fieldToVerifyKlassToString.contains(classNameToRefer)) {
msg = String.format("String representation \"%s\" of the object"
+ " returned by resolveFieldInPool method"
+ " for index %d does not contain a field's class name,"
+ " should contain %s",
fieldToVerifyKlassToString,
index,
classNameToRefer);
throw new AssertionError(msg);
}
msg = String.format("Access flags returned by resolveFieldInPool"
+ " method are wrong for the field %s.%s"
+ " at %sindex %d",
entry.klass,
entry.name,
cached,
index);
Asserts.assertEQ(info[0], entry.accFlags, msg);
if (cpci == -1) {
return;
}
Class classOfTheField = null;
Field fieldToRefer = null;
try {
classOfTheField = Class.forName(classNameToRefer.replaceAll("/", "\\."));
fieldToRefer = classOfTheField.getDeclaredField(entry.name);
fieldToRefer.setAccessible(true);
} catch (Exception ex) {
throw new Error("Unexpected exception", ex);
}
int offsetToRefer;
if ((entry.accFlags & Opcodes.ACC_STATIC) != 0) {
offsetToRefer = (int) UNSAFE.staticFieldOffset(fieldToRefer);
} else {
offsetToRefer = (int) UNSAFE.objectFieldOffset(fieldToRefer);
}
msg = String.format("Field offset returned by resolveFieldInPool"
+ " method is wrong for the field %s.%s"
+ " at %sindex %d",
entry.klass,
entry.name,
cached,
index);
Asserts.assertEQ(info[1], offsetToRefer, msg);
}
}
}
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