jdk/test/hotspot/jtreg/serviceability/sa/TestJhsdbJstackMixedWithVDSOCallCore.java
Yasumasa Suenaga 77e680b11e 8376269: Mixed jstack cannot find function in vDSO
Reviewed-by: kevinw, cjplummer
2026-02-06 12:52:43 +00:00

97 lines
3.6 KiB
Java

/*
* Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2026, NTT DATA
* 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.
*
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import java.nio.file.Path;
import jtreg.SkippedException;
import jdk.test.lib.JDKToolFinder;
import jdk.test.lib.JDKToolLauncher;
import jdk.test.lib.Platform;
import jdk.test.lib.SA.SATestUtils;
import jdk.test.lib.Utils;
import jdk.test.lib.apps.LingeredApp;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.util.CoreUtils;
/**
* @test
* @bug 8376269
* @requires (os.family == "linux") & (vm.hasSA)
* @requires os.arch == "amd64"
* @library /test/lib
* @run driver TestJhsdbJstackMixedWithVDSOCallCore
*/
public class TestJhsdbJstackMixedWithVDSOCallCore {
private static void runJstackMixed(String coreFileName) throws Exception {
JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb");
launcher.addVMArgs(Utils.getTestJavaOpts());
launcher.addToolArg("jstack");
launcher.addToolArg("--mixed");
launcher.addToolArg("--exe");
launcher.addToolArg(JDKToolFinder.getTestJDKTool("java"));
launcher.addToolArg("--core");
launcher.addToolArg(coreFileName);
ProcessBuilder pb = SATestUtils.createProcessBuilder(launcher);
Process jhsdb = pb.start();
OutputAnalyzer out = new OutputAnalyzer(jhsdb);
jhsdb.waitFor();
System.out.println(out.getStdout());
System.err.println(out.getStderr());
out.shouldContain("vdso_gettimeofday");
}
private static void checkVDSODebugInfo() {
var kernelVersion = System.getProperty("os.version");
var vdso = Path.of("/lib", "modules", kernelVersion, "vdso", "vdso64.so");
if (SATestUtils.getDebugInfo(vdso.toString()) == null) {
// Skip this test if debuginfo of vDSO not found because internal
// function of gettimeofday() would not be exported, and vDSO
// binary might be stripped.
throw new SkippedException("vDSO debuginfo not found (" + vdso.toString() + ")");
}
}
public static void main(String... args) throws Throwable {
if (Platform.isMusl()) {
throw new SkippedException("This test does not work on musl libc.");
}
checkVDSODebugInfo();
var app = new LingeredAppWithVDSOCall();
app.setForceCrash(true);
LingeredApp.startApp(app, CoreUtils.getAlwaysPretouchArg(true));
app.waitAppTerminate();
String crashOutput = app.getOutput().getStdout();
String coreFileName = CoreUtils.getCoreFileLocation(crashOutput, app.getPid());
runJstackMixed(coreFileName);
}
}