--- a/hotspot/src/share/tools/LogCompilation/src/com/sun/hotspot/tools/compiler/CallSite.java Mon Aug 26 16:12:20 2013 +0200
+++ b/hotspot/src/share/tools/LogCompilation/src/com/sun/hotspot/tools/compiler/CallSite.java Mon Aug 26 21:48:19 2013 -0700
@@ -106,10 +106,12 @@
" (" + getMethod().getBytes() + " bytes) " + getReason());
}
}
+ stream.printf(" (end time: %6.4f", getTimeStamp());
if (getEndNodes() > 0) {
- stream.printf(" (end time: %6.4f nodes: %d live: %d)", getTimeStamp(), getEndNodes(), getEndLiveNodes());
+ stream.printf(" nodes: %d live: %d", getEndNodes(), getEndLiveNodes());
}
- stream.println("");
+ stream.println(")");
+
if (getReceiver() != null) {
emit(stream, indent + 4);
// stream.println("type profile " + method.holder + " -> " + receiver + " (" +
--- a/hotspot/src/share/tools/LogCompilation/src/com/sun/hotspot/tools/compiler/LogParser.java Mon Aug 26 16:12:20 2013 +0200
+++ b/hotspot/src/share/tools/LogCompilation/src/com/sun/hotspot/tools/compiler/LogParser.java Mon Aug 26 21:48:19 2013 -0700
@@ -207,7 +207,12 @@
}
String search(Attributes attr, String name) {
- return search(attr, name, null);
+ String result = attr.getValue(name);
+ if (result != null) {
+ return result;
+ } else {
+ throw new InternalError("can't find " + name);
+ }
}
String search(Attributes attr, String name, String defaultValue) {
@@ -215,13 +220,7 @@
if (result != null) {
return result;
}
- if (defaultValue != null) {
- return defaultValue;
- }
- for (int i = 0; i < attr.getLength(); i++) {
- System.out.println(attr.getQName(i) + " " + attr.getValue(attr.getQName(i)));
- }
- throw new InternalError("can't find " + name);
+ return defaultValue;
}
int indent = 0;
@@ -268,17 +267,18 @@
Phase p = new Phase(search(atts, "name"),
Double.parseDouble(search(atts, "stamp")),
Integer.parseInt(search(atts, "nodes", "0")),
- Integer.parseInt(search(atts, "live")));
+ Integer.parseInt(search(atts, "live", "0")));
phaseStack.push(p);
} else if (qname.equals("phase_done")) {
Phase p = phaseStack.pop();
- if (! p.getId().equals(search(atts, "name"))) {
+ String phaseName = search(atts, "name", null);
+ if (phaseName != null && !p.getId().equals(phaseName)) {
System.out.println("phase: " + p.getId());
throw new InternalError("phase name mismatch");
}
p.setEnd(Double.parseDouble(search(atts, "stamp")));
p.setEndNodes(Integer.parseInt(search(atts, "nodes", "0")));
- p.setEndLiveNodes(Integer.parseInt(search(atts, "live")));
+ p.setEndLiveNodes(Integer.parseInt(search(atts, "live", "0")));
compile.getPhases().add(p);
} else if (qname.equals("task")) {
compile = new Compilation(Integer.parseInt(search(atts, "compile_id", "-1")));
@@ -413,8 +413,8 @@
}
} else if (qname.equals("parse_done")) {
CallSite call = scopes.pop();
- call.setEndNodes(Integer.parseInt(search(atts, "nodes", "1")));
- call.setEndLiveNodes(Integer.parseInt(search(atts, "live", "1")));
+ call.setEndNodes(Integer.parseInt(search(atts, "nodes", "0")));
+ call.setEndLiveNodes(Integer.parseInt(search(atts, "live", "0")));
call.setTimeStamp(Double.parseDouble(search(atts, "stamp")));
scopes.push(call);
}
--- a/hotspot/src/share/vm/c1/c1_Compilation.cpp Mon Aug 26 16:12:20 2013 +0200
+++ b/hotspot/src/share/vm/c1/c1_Compilation.cpp Mon Aug 26 21:48:19 2013 -0700
@@ -74,16 +74,19 @@
private:
JavaThread* _thread;
CompileLog* _log;
+ TimerName _timer;
public:
PhaseTraceTime(TimerName timer)
- : TraceTime("", &timers[timer], CITime || CITimeEach, Verbose), _log(NULL) {
+ : TraceTime("", &timers[timer], CITime || CITimeEach, Verbose),
+ _log(NULL), _timer(timer)
+ {
if (Compilation::current() != NULL) {
_log = Compilation::current()->log();
}
if (_log != NULL) {
- _log->begin_head("phase name='%s'", timer_name[timer]);
+ _log->begin_head("phase name='%s'", timer_name[_timer]);
_log->stamp();
_log->end_head();
}
@@ -91,7 +94,7 @@
~PhaseTraceTime() {
if (_log != NULL)
- _log->done("phase");
+ _log->done("phase name='%s'", timer_name[_timer]);
}
};
--- a/hotspot/src/share/vm/runtime/thread.cpp Mon Aug 26 16:12:20 2013 +0200
+++ b/hotspot/src/share/vm/runtime/thread.cpp Mon Aug 26 21:48:19 2013 -0700
@@ -3636,6 +3636,16 @@
CompileBroker::compilation_init();
#endif
+ if (EnableInvokeDynamic) {
+ // Pre-initialize some JSR292 core classes to avoid deadlock during class loading.
+ // It is done after compilers are initialized, because otherwise compilations of
+ // signature polymorphic MH intrinsics can be missed
+ // (see SystemDictionary::find_method_handle_intrinsic).
+ initialize_class(vmSymbols::java_lang_invoke_MethodHandle(), CHECK_0);
+ initialize_class(vmSymbols::java_lang_invoke_MemberName(), CHECK_0);
+ initialize_class(vmSymbols::java_lang_invoke_MethodHandleNatives(), CHECK_0);
+ }
+
#if INCLUDE_MANAGEMENT
Management::initialize(THREAD);
#endif // INCLUDE_MANAGEMENT
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/jsr292/ConcurrentClassLoadingTest.java Mon Aug 26 21:48:19 2013 -0700
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2013, 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 8022595
+ * @summary JSR292: deadlock during class loading of MethodHandles, MethodHandleImpl & MethodHandleNatives
+ *
+ * @run main/othervm ConcurrentClassLoadingTest
+ */
+import java.util.*;
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+
+public class ConcurrentClassLoadingTest {
+ int numThreads = 0;
+ long seed = 0;
+ CyclicBarrier l;
+ Random rand;
+
+ public static void main(String[] args) throws Throwable {
+ ConcurrentClassLoadingTest test = new ConcurrentClassLoadingTest();
+ test.parseArgs(args);
+ test.run();
+ }
+
+ void parseArgs(String[] args) {
+ int i = 0;
+ while (i < args.length) {
+ String flag = args[i];
+ switch(flag) {
+ case "-seed":
+ seed = Long.parseLong(args[++i]);
+ break;
+ case "-numThreads":
+ numThreads = Integer.parseInt(args[++i]);
+ break;
+ default:
+ throw new Error("Unknown flag: " + flag);
+ }
+ ++i;
+ }
+ }
+
+ void init() {
+ if (numThreads == 0) {
+ numThreads = Runtime.getRuntime().availableProcessors();
+ }
+
+ if (seed == 0) {
+ seed = (new Random()).nextLong();
+ }
+ rand = new Random(seed);
+
+ l = new CyclicBarrier(numThreads + 1);
+
+ System.out.printf("Threads: %d\n", numThreads);
+ System.out.printf("Seed: %d\n", seed);
+ }
+
+ final List<Loader> loaders = new ArrayList<>();
+
+ void prepare() {
+ List<String> c = new ArrayList<>(Arrays.asList(classNames));
+
+ // Split classes between loading threads
+ int count = (classNames.length / numThreads) + 1;
+ for (int t = 0; t < numThreads; t++) {
+ List<String> sel = new ArrayList<>();
+
+ System.out.printf("Thread #%d:\n", t);
+ for (int i = 0; i < count; i++) {
+ if (c.size() == 0) break;
+
+ int k = rand.nextInt(c.size());
+ String elem = c.remove(k);
+ sel.add(elem);
+ System.out.printf("\t%s\n", elem);
+ }
+ loaders.add(new Loader(sel));
+ }
+
+ // Print diagnostic info when the test hangs
+ Runtime.getRuntime().addShutdownHook(new Thread() {
+ public void run() {
+ boolean alive = false;
+ for (Loader l : loaders) {
+ if (!l.isAlive()) continue;
+
+ if (!alive) {
+ System.out.println("Some threads are still alive:");
+ alive = true;
+ }
+
+ System.out.println(l.getName());
+ for (StackTraceElement elem : l.getStackTrace()) {
+ System.out.println("\t"+elem.toString());
+ }
+ }
+ }
+ });
+ }
+
+ public void run() throws Throwable {
+ init();
+ prepare();
+
+ for (Loader loader : loaders) {
+ loader.start();
+ }
+
+ l.await();
+
+ for (Loader loader : loaders) {
+ loader.join();
+ }
+ }
+
+ class Loader extends Thread {
+ List<String> classes;
+
+ public Loader(List<String> classes) {
+ this.classes = classes;
+ setDaemon(true);
+ }
+
+ @Override
+ public void run() {
+ try {
+ l.await();
+
+ for (String name : classes) {
+ Class.forName(name).getName();
+ }
+ } catch (ClassNotFoundException | BrokenBarrierException | InterruptedException e) {
+ throw new Error(e);
+ }
+ }
+ }
+
+ final static String[] classNames = {
+ "java.lang.invoke.AbstractValidatingLambdaMetafactory",
+ "java.lang.invoke.BoundMethodHandle",
+ "java.lang.invoke.CallSite",
+ "java.lang.invoke.ConstantCallSite",
+ "java.lang.invoke.DirectMethodHandle",
+ "java.lang.invoke.InnerClassLambdaMetafactory",
+ "java.lang.invoke.InvokeDynamic",
+ "java.lang.invoke.InvokeGeneric",
+ "java.lang.invoke.InvokerBytecodeGenerator",
+ "java.lang.invoke.Invokers",
+ "java.lang.invoke.LambdaConversionException",
+ "java.lang.invoke.LambdaForm",
+ "java.lang.invoke.LambdaMetafactory",
+ "java.lang.invoke.MagicLambdaImpl",
+ "java.lang.invoke.MemberName",
+ "java.lang.invoke.MethodHandle",
+ "java.lang.invoke.MethodHandleImpl",
+ "java.lang.invoke.MethodHandleInfo",
+ "java.lang.invoke.MethodHandleNatives",
+ "java.lang.invoke.MethodHandleProxies",
+ "java.lang.invoke.MethodHandles",
+ "java.lang.invoke.MethodHandleStatics",
+ "java.lang.invoke.MethodType",
+ "java.lang.invoke.MethodTypeForm",
+ "java.lang.invoke.MutableCallSite",
+ "java.lang.invoke.SerializedLambda",
+ "java.lang.invoke.SimpleMethodHandle",
+ "java.lang.invoke.SwitchPoint",
+ "java.lang.invoke.TypeConvertingMethodAdapter",
+ "java.lang.invoke.VolatileCallSite",
+ "java.lang.invoke.WrongMethodTypeException"
+ };
+}