341 lines
15 KiB
Java
341 lines
15 KiB
Java
/*
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* Copyright (c) 2017, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.ArrayList;
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import jdk.test.lib.apps.LingeredApp;
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import jdk.test.lib.Platform;
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import jdk.test.lib.util.CoreUtils;
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import jtreg.SkippedException;
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/**
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* @test id=xcomp-process
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* @bug 8193124
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* @summary Test the clhsdb 'findpc' command with Xcomp on live process
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* @requires vm.compMode != "Xcomp"
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* @requires vm.hasSA
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* @requires vm.compiler1.enabled
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* @requires vm.opt.DeoptimizeALot != true
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* @library /test/lib
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* @run main/othervm/timeout=480 ClhsdbFindPC true false
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*/
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/**
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* @test id=xcomp-core
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* @bug 8193124
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* @summary Test the clhsdb 'findpc' command with Xcomp on core file
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* @requires vm.compMode != "Xcomp"
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* @requires vm.hasSA
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* @requires vm.compiler1.enabled
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* @requires vm.opt.DeoptimizeALot != true
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* @library /test/lib
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* @run main/othervm/timeout=480 ClhsdbFindPC true true
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*/
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/**
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* @test id=no-xcomp-process
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* @bug 8193124
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* @summary Test the clhsdb 'findpc' command w/o Xcomp on live process
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* @requires vm.hasSA
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* @requires vm.compiler1.enabled
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* @library /test/lib
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* @run main/othervm/timeout=480 ClhsdbFindPC false false
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*/
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/**
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* @test id=no-xcomp-core
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* @bug 8193124
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* @summary Test the clhsdb 'findpc' command w/o Xcomp on core file
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* @requires vm.hasSA
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* @requires vm.compiler1.enabled
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* @library /test/lib
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* @run main/othervm/timeout=480 ClhsdbFindPC false true
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*/
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public class ClhsdbFindPC {
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static LingeredApp theApp = null;
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static String coreFileName = null;
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static ClhsdbLauncher test = null;
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private static void testFindPC(boolean withXcomp, boolean withCore) throws Exception {
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try {
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String linesep = System.getProperty("line.separator");
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String segvAddress = null;
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List<String> cmds = null;
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String cmdStr = null;
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Map<String, List<String>> expStrMap = null;
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test = new ClhsdbLauncher();
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theApp = new LingeredApp();
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theApp.setForceCrash(withCore);
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if (withXcomp) {
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LingeredApp.startApp(theApp, "-Xcomp", CoreUtils.getAlwaysPretouchArg(withCore));
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} else {
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LingeredApp.startApp(theApp, "-Xint", CoreUtils.getAlwaysPretouchArg(withCore));
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}
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System.out.print("Started LingeredApp ");
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if (withXcomp) {
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System.out.print("(-Xcomp) ");
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} else {
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System.out.print("(-Xint) ");
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}
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System.out.println("with pid " + theApp.getPid());
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if (withCore) {
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String crashOutput = theApp.getOutput().getStdout();
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// Get the core file name if we are debugging a core instead of live process
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coreFileName = CoreUtils.getCoreFileLocation(crashOutput, theApp.getPid());
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// Get the SEGV Address from the following line:
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// # SIGSEGV (0xb) at pc=0x00007f20a897f7f4, pid=8561, tid=8562
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String[] parts = crashOutput.split(" pc=");
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String[] tokens = parts[1].split(",");
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segvAddress = tokens[0];
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// Test the 'findpc' command passing in the SEGV address
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cmds = new ArrayList<String>();
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cmdStr = "findpc " + segvAddress;
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cmds.add(cmdStr);
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expStrMap = new HashMap<>();
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if (Platform.isOSX()) {
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// OSX will only find addresses in JVM libraries, not user or system libraries
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expStrMap.put(cmdStr, List.of("In unknown location"));
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} else { // symbol lookups not supported with OSX live process
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expStrMap.put(cmdStr, List.of("Java_jdk_test_lib_apps_LingeredApp_crash"));
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}
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runTest(withCore, cmds, expStrMap);
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}
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// Run 'jstack -v' command to get the pc and other useful values
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cmds = List.of("jstack -v");
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String jStackOutput = runTest(withCore, cmds, null);
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// Extract pc address from the following line:
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// - LingeredApp.steadyState(java.lang.Object) @bci=1, line=33, pc=0x00007ff18ff519f0, ...
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String pcAddress = null;
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String[] parts = jStackOutput.split("LingeredApp.steadyState");
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String[] tokens = parts[1].split(" ");
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for (String token : tokens) {
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if (token.contains("pc")) {
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String[] addresses = token.split("=");
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// addresses[1] represents the address of the Method
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pcAddress = addresses[1].replace(",","");
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break;
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}
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}
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if (pcAddress == null) {
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throw new RuntimeException("Cannot find LingeredApp.steadyState pc in output");
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}
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// Test the 'findpc' command passing in the pc obtained from jstack above
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cmds = new ArrayList<String>();
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cmdStr = "findpc " + pcAddress;
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cmds.add(cmdStr);
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expStrMap = new HashMap<>();
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if (withXcomp) {
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expStrMap.put(cmdStr, List.of(
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"In code in NMethod for jdk/test/lib/apps/LingeredApp.steadyState",
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"content:",
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"oops:",
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"frame size:"));
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} else {
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expStrMap.put(cmdStr, List.of(
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"In interpreter codelet"));
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}
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runTest(withCore, cmds, expStrMap);
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// Run findpc on a Method*. We can find one in the jstack output. For example:
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// - LingeredApp.steadyState(java.lang.Object) @bci=1, line=33, pc=..., Method*=0x0000008041000208 ...
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// This is testing the PointerFinder support for C++ MetaData types.
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parts = jStackOutput.split("LingeredApp.steadyState");
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parts = parts[1].split("Method\\*=");
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parts = parts[1].split(" ");
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String methodAddr = parts[0];
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cmdStr = "findpc " + methodAddr;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("Method ",
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"LingeredApp.steadyState",
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methodAddr));
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runTest(withCore, cmds, expStrMap);
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// Rerun above findpc command, but this time using "whatis", which is an alias for "findpc".
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cmdStr = "whatis " + methodAddr;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("Method ",
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"LingeredApp.steadyState",
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methodAddr));
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runTest(withCore, cmds, expStrMap);
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// Run "mem -v <addr>/30" on a Method*. The first line will look like:
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// Address 0x0000152e30403530: Method jdk/test/lib/apps/LingeredApp.steadyState(Ljava/lang/Object;)V@0x0000152e30403530
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// Followed by lines displaying the memory contents, including interpretation
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// of any contents that are addresses.
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cmdStr = "mem -v " + methodAddr + "/30";
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("Method jdk/test/lib/apps/LingeredApp.steadyState",
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methodAddr,
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/* The following is from a field in the Method object. */
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"In interpreter codelet: method entry point"));
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runTest(withCore, cmds, expStrMap);
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// Run findpc on a JavaThread*. We can find one in the jstack output.
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// The tid for a thread is it's JavaThread*. For example:
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// "main" #1 prio=5 tid=0x00000080263398f0 nid=0x277e0 ...
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// This is testing the PointerFinder support for all C++ types other than MetaData types.
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parts = jStackOutput.split("tid=");
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parts = parts[1].split(" ");
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String tid = parts[0]; // address of the JavaThread
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cmdStr = "findpc " + tid;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("Is of type JavaThread"));
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runTest(withCore, cmds, expStrMap);
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// Use findpc on an address that is only 4 byte aligned and is the
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// last 4 bytes of a 4k page. This is for testing JDK-8292201.
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String badAddress = tid.substring(0, tid.length() - 3) + "ffc";
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cmdStr = "findpc " + badAddress;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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expStrMap.put(cmdStr, List.of("In unknown location"));
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runTest(withCore, cmds, expStrMap);
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// Run findpc on a java stack address. We can find one in the jstack output.
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// "main" #1 prio=5 tid=... nid=0x277e0 waiting on condition [0x0000008025aef000]
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// The stack address is the last word between the brackets.
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// This is testing the PointerFinder support for thread stack addresses.
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parts = jStackOutput.split("tid=");
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parts = parts[1].split(" \\[");
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parts = parts[1].split("\\]");
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String stackAddress = parts[0]; // address of the thread's stack
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if (Long.decode(stackAddress) == 0L) {
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System.out.println("Stack address is " + stackAddress + ". Skipping test.");
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} else {
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cmdStr = "findpc " + stackAddress;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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// Note, sometimes a stack address points to a hotspot type, thus allow for "Is of type".
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expStrMap.put(cmdStr, List.of("(In java stack)|(Is of type)"));
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runTest(withCore, cmds, expStrMap);
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}
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// Run 'examine <addr>' using a thread's tid as the address. The
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// examine output will be the of the form:
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// <tid>: <value>
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// Where <value> is the word stored at <tid>. <value> also happens to
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// be the vtable address. We then run findpc on this vtable address.
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// This tests PointerFinder support for native C++ symbols.
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cmds = List.of("examine " + tid);
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String examineOutput = runTest(withCore, cmds, null);
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// Extract <value>.
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parts = examineOutput.split(tid + ": ");
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String value = parts[1].split(linesep)[0];
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// Use findpc on <value>. The output should look something like:
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// Address 0x00007fed86f610b8: vtable for JavaThread + 0x10
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cmdStr = "findpc " + value;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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if (Platform.isWindows()) {
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expStrMap.put(cmdStr, List.of("jvm.+JavaThread"));
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} else if (Platform.isOSX()) {
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if (withCore) {
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expStrMap.put(cmdStr, List.of("__ZTV10JavaThread"));
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} else { // address -> symbol lookups not supported with OSX live process
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expStrMap.put(cmdStr, List.of("In unknown location"));
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}
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} else {
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expStrMap.put(cmdStr, List.of("vtable for JavaThread"));
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}
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String findpcOutput = runTest(withCore, cmds, expStrMap);
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// Determine if we have symbol support. Currently we assume yes except on windows.
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boolean hasSymbols = true;
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if (Platform.isWindows()) {
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if (findpcOutput.indexOf("jvm!JavaThread::`vftable'") == -1) {
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hasSymbols = false;
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}
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}
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// Run "findsym MaxJNILocalCapacity". The output should look something like:
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// 0x00007eff8e1a0da0: <jdk-dir>/lib/server/libjvm.so + 0x1d81da0
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String symbol = "MaxJNILocalCapacity";
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cmds = List.of("findsym " + symbol);
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expStrMap = new HashMap<>();
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if (!hasSymbols) {
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expStrMap.put(cmdStr, List.of("Symbol not found"));
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}
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String findsymOutput = runTest(withCore, cmds, expStrMap);
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// Run findpc on the result of "findsym MaxJNILocalCapacity". The output
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// should look something like:
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// Address 0x00007eff8e1a0da0: MaxJNILocalCapacity
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if (hasSymbols) {
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parts = findsymOutput.split("findsym " + symbol + linesep);
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parts = parts[1].split(":");
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String findsymAddress = parts[0].split(linesep)[0];
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cmdStr = "findpc " + findsymAddress;
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cmds = List.of(cmdStr);
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expStrMap = new HashMap<>();
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if (Platform.isOSX() && !withCore) {
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// address -> symbol lookups not supported with OSX live process
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expStrMap.put(cmdStr, List.of("Address " + findsymAddress + ": In unknown location"));
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} else {
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expStrMap.put(cmdStr, List.of("Address " + findsymAddress + ": .*" + symbol));
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}
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runTest(withCore, cmds, expStrMap);
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}
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} catch (SkippedException se) {
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throw se;
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} catch (Exception ex) {
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throw new RuntimeException("Test ERROR " + ex, ex);
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} finally {
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if (!withCore) {
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LingeredApp.stopApp(theApp);
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}
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}
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}
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private static String runTest(boolean withCore, List<String> cmds, Map<String, List<String>> expStrMap)
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throws Exception
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{
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if (withCore) {
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return test.runOnCore(coreFileName, cmds, expStrMap, null);
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} else {
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return test.run(theApp.getPid(), cmds, expStrMap, null);
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}
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}
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public static void main(String[] args) throws Exception {
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boolean withXcomp = Boolean.parseBoolean(args[0]);
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boolean withCore = Boolean.parseBoolean(args[1]);
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System.out.println("Starting the ClhsdbFindPC test");
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testFindPC(withXcomp, withCore);
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System.out.println("Test PASSED");
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}
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}
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