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/*
* Copyright (c) 2015, 2018, 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 vm.jvmci
* @library /test/lib /
* @library ../common/patches
* @modules java.base/jdk.internal.misc
* @modules 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.code
*
* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
* @build sun.hotspot.WhiteBox
* compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -XX:-BackgroundCompilation
* compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
*/
package compiler.jvmci.compilerToVM;
import jdk.test.lib.Asserts;
import jdk.test.lib.Utils;
import jdk.vm.ci.code.InstalledCode;
import jdk.vm.ci.hotspot.CompilerToVMHelper;
import sun.hotspot.code.NMethod;
import java.util.List;
public class DisassembleCodeBlobTest {
public static void main(String[] args) {
DisassembleCodeBlobTest test
= new DisassembleCodeBlobTest();
List<CompileCodeTestCase> testCases
= CompileCodeTestCase.generate(/* bci = */ -1);
testCases.forEach(test::check);
testCases.stream().findAny().ifPresent(test::checkZero);
test.checkNull();
}
private void checkNull() {
Utils.runAndCheckException(
() -> CompilerToVMHelper.disassembleCodeBlob(null),
NullPointerException.class);
}
private void checkZero(CompileCodeTestCase testCase) {
System.out.println("checkZero for " + testCase);
testCase.deoptimize();
InstalledCode installedCode = testCase.toInstalledCode();
String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
Asserts.assertNull(str, testCase
+ " : non-null return value for invalid installCode");
}
private void check(CompileCodeTestCase testCase) {
System.out.println(testCase);
// to have a clean state
NMethod nMethod = testCase.deoptimizeAndCompile();
if (nMethod == null) {
throw new Error(testCase + " : method is not compiled");
}
InstalledCode installedCode = testCase.toInstalledCode();
String str1 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
if (str1 != null) {
Asserts.assertGT(str1.length(), 0,
testCase + " : returned string has to be non-zero length");
}
// The very first call to the disassembler contains a string specifying the
// architecture: [Disassembling for mach='i386:x86-64']
// Therefore compare strings 2 and 3.
String str2 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
String str3 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
Asserts.assertEQ(str2, str3,
testCase + " : 3nd invocation returned different value from 2nd");
}
}
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