Merge

hotspot/src/share/vm/c1/c1_LIRGenerator.cpp

@@ -2295,7 +2295,7 @@ void LIRGenerator::do_UnsafeGetObject(UnsafeGetObject* x) {
       if (gen_type_check) {
         // We have determined that offset == referent_offset && src != null.
         // if (src->_klass->_reference_type == REF_NONE) -> continue
-        __ move(new LIR_Address(src.result(), oopDesc::klass_offset_in_bytes(), UseCompressedKlassPointers ? T_OBJECT : T_ADDRESS), src_klass);
+        __ move(new LIR_Address(src.result(), oopDesc::klass_offset_in_bytes(), T_ADDRESS), src_klass);
         LIR_Address* reference_type_addr = new LIR_Address(src_klass, in_bytes(InstanceKlass::reference_type_offset()), T_BYTE);
         LIR_Opr reference_type = new_register(T_INT);
         __ move(reference_type_addr, reference_type);

hotspot/src/share/vm/classfile/classLoader.cpp

@@ -878,7 +878,7 @@ objArrayOop ClassLoader::get_system_packages(TRAPS) {
 
 instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) {
   ResourceMark rm(THREAD);
-  EventMark m("loading class " INTPTR_FORMAT, (address)h_name);
+  EventMark m("loading class %s", h_name->as_C_string());
   ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
 
   stringStream st;

hotspot/src/share/vm/runtime/arguments.cpp

@@ -60,6 +60,28 @@
 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp"
 #define DEFAULT_JAVA_LAUNCHER  "generic"
 
+// Disable options not supported in this release, with a warning if they
+// were explicitly requested on the command-line
+#define UNSUPPORTED_OPTION(opt, description)                    \
+do {                                                            \
+  if (opt) {                                                    \
+    if (FLAG_IS_CMDLINE(opt)) {                                 \
+      warning(description " is disabled in this release.");     \
+    }                                                           \
+    FLAG_SET_DEFAULT(opt, false);                               \
+  }                                                             \
+} while(0)
+
+#define UNSUPPORTED_GC_OPTION(gc)                                     \
+do {                                                                  \
+  if (gc) {                                                           \
+    if (FLAG_IS_CMDLINE(gc)) {                                        \
+      warning(#gc " is not supported in this VM.  Using Serial GC."); \
+    }                                                                 \
+    FLAG_SET_DEFAULT(gc, false);                                      \
+  }                                                                   \
+} while(0)
+
 char**  Arguments::_jvm_flags_array             = NULL;
 int     Arguments::_num_jvm_flags               = 0;
 char**  Arguments::_jvm_args_array              = NULL;
@@ -3128,14 +3150,17 @@ jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_req
     FLAG_SET_DEFAULT(UseLargePages, false);
   }
 
-  // Tiered compilation is undefined with C1.
-  TieredCompilation = false;
 #else
   if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) {
     FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1);
   }
 #endif
 
+#ifndef TIERED
+  // Tiered compilation is undefined.
+  UNSUPPORTED_OPTION(TieredCompilation, "TieredCompilation");
+#endif
+
   // If we are running in a headless jre, force java.awt.headless property
   // to be true unless the property has already been set.
   // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state.
@@ -3278,29 +3303,6 @@ void Arguments::set_shared_spaces_flags() {
   }
 }
 
-// Disable options not supported in this release, with a warning if they
-// were explicitly requested on the command-line
-#define UNSUPPORTED_OPTION(opt, description)                    \
-do {                                                            \
-  if (opt) {                                                    \
-    if (FLAG_IS_CMDLINE(opt)) {                                 \
-      warning(description " is disabled in this release.");     \
-    }                                                           \
-    FLAG_SET_DEFAULT(opt, false);                               \
-  }                                                             \
-} while(0)
-
-
-#define UNSUPPORTED_GC_OPTION(gc)                                     \
-do {                                                                  \
-  if (gc) {                                                           \
-    if (FLAG_IS_CMDLINE(gc)) {                                        \
-      warning(#gc " is not supported in this VM.  Using Serial GC."); \
-    }                                                                 \
-    FLAG_SET_DEFAULT(gc, false);                                      \
-  }                                                                   \
-} while(0)
-
 #if !INCLUDE_ALL_GCS
 static void force_serial_gc() {
   FLAG_SET_DEFAULT(UseSerialGC, true);

hotspot/src/share/vm/utilities/exceptions.cpp

@@ -125,13 +125,13 @@ void Exceptions::_throw_oop(Thread* thread, const char* file, int line, oop exce
 }
 
 void Exceptions::_throw(Thread* thread, const char* file, int line, Handle h_exception, const char* message) {
+  ResourceMark rm;
   assert(h_exception() != NULL, "exception should not be NULL");
 
   // tracing (do this up front - so it works during boot strapping)
   if (TraceExceptions) {
     ttyLocker ttyl;
-    ResourceMark rm;
+    tty->print_cr("Exception <%s%s%s> (" INTPTR_FORMAT ") \n"
-    tty->print_cr("Exception <%s>%s%s (" INTPTR_FORMAT " ) \n"
                   "thrown [%s, line %d]\nfor thread " INTPTR_FORMAT,
                   h_exception->print_value_string(),
                   message ? ": " : "", message ? message : "",
@@ -141,7 +141,9 @@ void Exceptions::_throw(Thread* thread, const char* file, int line, Handle h_exc
   NOT_PRODUCT(Exceptions::debug_check_abort(h_exception, message));
 
   // Check for special boot-strapping/vm-thread handling
-  if (special_exception(thread, file, line, h_exception)) return;
+  if (special_exception(thread, file, line, h_exception)) {
+    return;
+  }
 
   assert(h_exception->is_a(SystemDictionary::Throwable_klass()), "exception is not a subclass of java/lang/Throwable");
 
@@ -149,7 +151,9 @@ void Exceptions::_throw(Thread* thread, const char* file, int line, Handle h_exc
   thread->set_pending_exception(h_exception(), file, line);
 
   // vm log
-  Events::log_exception(thread, "Threw " INTPTR_FORMAT " at %s:%d", (address)h_exception(), file, line);
+  Events::log_exception(thread, "Exception <%s%s%s> (" INTPTR_FORMAT ") thrown at [%s, line %d]",
+                        h_exception->print_value_string(), message ? ": " : "", message ? message : "",
+                        (address)h_exception(), file, line);
 }
 
 

hotspot/test/compiler/codecache/CheckUpperLimit.java

@@ -35,10 +35,6 @@ public class CheckUpperLimit {
     ProcessBuilder pb;
     OutputAnalyzer out;
 
-    pb = ProcessTools.createJavaProcessBuilder("-XX:ReservedCodeCacheSize=2048m", "-version");
-    out = new OutputAnalyzer(pb.start());
-    out.shouldHaveExitValue(0);
-
     pb = ProcessTools.createJavaProcessBuilder("-XX:ReservedCodeCacheSize=2049m", "-version");
     out = new OutputAnalyzer(pb.start());
     out.shouldContain("Invalid ReservedCodeCacheSize=");

hotspot/test/compiler/unsafe/GetUnsafeObjectG1PreBarrier.java

@@ -0,0 +1,71 @@
+/*
+ * 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 8016474
+ * @summary The bug only happens with C1 and G1 using a different ObjectAlignmentInBytes than KlassAlignmentInBytes (which is 8)
+ * @run main/othervm -Xbatch -XX:ObjectAlignmentInBytes=32 GetUnsafeObjectG1PreBarrier
+ */
+
+import java.lang.reflect.Field;
+
+import sun.misc.Unsafe;
+
+public class GetUnsafeObjectG1PreBarrier {
+    private static final Unsafe unsafe;
+    private static final int N = 100_000;
+
+    static {
+        try {
+            Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
+            theUnsafe.setAccessible(true);
+            unsafe = (Unsafe) theUnsafe.get(null);
+        } catch (NoSuchFieldException | IllegalAccessException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public Object a;
+
+    public static void main(String[] args) throws Throwable {
+        new GetUnsafeObjectG1PreBarrier();
+    }
+
+    public GetUnsafeObjectG1PreBarrier() throws Throwable {
+        doit();
+    }
+
+    private void doit() throws Throwable {
+        Field field = GetUnsafeObjectG1PreBarrier.class.getField("a");
+        long fieldOffset = unsafe.objectFieldOffset(field);
+
+        for (int i = 0; i < N; i++) {
+            readField(this, fieldOffset);
+        }
+    }
+
+    private void readField(Object o, long fieldOffset) {
+        unsafe.getObject(o, fieldOffset);
+    }
+}