8292695: SIGQUIT and jcmd attaching mechanism does not work with signal chaining library

8283337: Posix signal handler modification warning triggering incorrectly

Reviewed-by: manc, mdoerr
Backport-of: 45ff10cc68296c7c73d0eafe6fcc9946ab98267e

Author: GoeLin

test/hotspot/jtreg/runtime/Thread/TestBreakSignalThreadDump.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2022, Google 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 id=default
+ * @bug 8292695
+ * @summary Check that Ctrl-\ or Ctrl-Break (on Windows) causes HotSpot VM to print a full thread dump.
+ * @library /vmTestbase
+ *          /test/lib
+ * @run driver TestBreakSignalThreadDump
+ */
+
+/*
+ * @test id=with_jsig
+ * @bug 8292695
+ * @summary Check that Ctrl-\ causes HotSpot VM to print a full thread dump when signal chaining is used.
+ * @requires os.family != "windows" & os.family != "aix"
+ * @library /vmTestbase
+ *          /test/lib
+ * @run driver TestBreakSignalThreadDump load_libjsig
+ */
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Map;
+import jdk.test.lib.Platform;
+import jdk.test.lib.Utils;
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+import vm.share.ProcessUtils;
+
+public class TestBreakSignalThreadDump {
+
+    static class TestProcess {
+        static {
+            System.loadLibrary("ProcessUtils");
+        }
+
+        public static void main(String[] argv) throws Exception {
+            ProcessUtils.sendCtrlBreak();
+            // Wait a bit, as JVM processes the break signal asynchronously.
+            Thread.sleep(1000);
+            System.out.println("Done!");
+        }
+    }
+
+    public static void main(String[] argv) throws Exception {
+        String main = "TestBreakSignalThreadDump$TestProcess";
+        ProcessBuilder pb = ProcessTools.createTestJvm("-Djava.library.path=" + Utils.TEST_NATIVE_PATH, main);
+
+        if (argv.length > 0 && argv[0].equals("load_libjsig")) {
+            prepend_jsig_lib(pb.environment());
+        }
+
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldHaveExitValue(0);
+        output.shouldContain("Full thread dump ");
+        output.shouldContain("java.lang.Thread.State: RUNNABLE");
+        output.shouldContain("Done!");
+    }
+
+    private static void prepend_jsig_lib(Map<String, String> env) {
+        Path libjsig = Platform.jvmLibDir().resolve("libjsig." + Platform.sharedLibraryExt());
+        if (!Files.exists(libjsig)) {
+            throw new RuntimeException("File libjsig not found, path: " + libjsig);
+        }
+        String env_var = Platform.isOSX() ? "DYLD_INSERT_LIBRARIES" : "LD_PRELOAD";
+        env.put(env_var, libjsig.toString());
+    }
+}