changeset 23322:f8178417d018

Expose SharedRuntime::throw_and_post_jvmti_exception to JVMCI compilers.
author Roland Schatz <roland.schatz@oracle.com>
date Mon, 14 Mar 2016 11:58:48 +0100
parents fc1036575a76
children 3b978b521c83
files jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/CompilerToVM.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProvider.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProviderImpl.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaAccessProvider.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaspaceConstant.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaspaceConstantImpl.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotSymbol.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotVMConfig.java jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotVmSymbols.java src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp src/share/vm/jvmci/jvmciCodeInstaller.cpp src/share/vm/jvmci/jvmciCodeInstaller.hpp src/share/vm/jvmci/jvmciCompilerToVM.cpp src/share/vm/jvmci/jvmciJavaClasses.hpp src/share/vm/jvmci/jvmciRuntime.cpp src/share/vm/jvmci/jvmciRuntime.hpp src/share/vm/jvmci/systemDictionary_jvmci.hpp src/share/vm/jvmci/vmSymbols_jvmci.hpp
diffstat 20 files changed, 163 insertions(+), 74 deletions(-) [+]
line wrap: on
line diff
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/CompilerToVM.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/CompilerToVM.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2016, 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
@@ -478,6 +478,11 @@
     native String getSymbol(long metaspaceSymbol);
 
     /**
+     * Lookup a VMSymbol from a String.
+     */
+    native long lookupSymbol(String symbol);
+
+    /**
      * Looks for the next Java stack frame matching an entry in {@code methods}.
      *
      * @param frame the starting point of the search, where {@code null} refers to the topmost frame
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProvider.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProvider.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2016, 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
@@ -39,4 +39,6 @@
     Constant readNarrowKlassPointerConstant(Constant base, long displacement, CompressEncoding encoding);
 
     Constant readMethodPointerConstant(Constant base, long displacement);
+
+    Constant readSymbolConstant(Constant base, long displacement);
 }
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProviderImpl.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProviderImpl.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2016, 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
@@ -85,13 +85,13 @@
         Object base = asObject(baseConstant);
         if (base != null) {
             switch (bits) {
-                case 8:
+                case Byte.SIZE:
                     return UNSAFE.getByte(base, displacement);
-                case 16:
+                case Short.SIZE:
                     return UNSAFE.getShort(base, displacement);
-                case 32:
+                case Integer.SIZE:
                     return UNSAFE.getInt(base, displacement);
-                case 64:
+                case Long.SIZE:
                     return UNSAFE.getLong(base, displacement);
                 default:
                     throw new JVMCIError("%d", bits);
@@ -99,13 +99,13 @@
         } else {
             long pointer = asRawPointer(baseConstant);
             switch (bits) {
-                case 8:
+                case Byte.SIZE:
                     return UNSAFE.getByte(pointer + displacement);
-                case 16:
+                case Short.SIZE:
                     return UNSAFE.getShort(pointer + displacement);
-                case 32:
+                case Integer.SIZE:
                     return UNSAFE.getInt(pointer + displacement);
-                case 64:
+                case Long.SIZE:
                     return UNSAFE.getLong(pointer + displacement);
                 default:
                     throw new JVMCIError("%d", bits);
@@ -156,7 +156,8 @@
             Object o = readRawObject(baseConstant, displacement, runtime.getConfig().useCompressedOops);
             return HotSpotObjectConstantImpl.forObject(o);
         } else {
-            return readPrimitiveConstant(kind, baseConstant, displacement, kind.getByteCount() * 8);
+            int bits = kind.getByteCount() * Byte.SIZE;
+            return readPrimitiveConstant(kind, baseConstant, displacement, bits);
         }
     }
 
@@ -234,4 +235,16 @@
         HotSpotResolvedJavaMethodImpl method = runtime.getCompilerToVM().getResolvedJavaMethod(baseObject, displacement);
         return HotSpotMetaspaceConstantImpl.forMetaspaceObject(method, false);
     }
+
+    @Override
+    public Constant readSymbolConstant(Constant base, long displacement) {
+        int bits = runtime.getConfig().symbolPointerSize * Byte.SIZE;
+        long pointer = readRawValue(base, displacement, bits);
+        if (pointer == 0) {
+            return JavaConstant.NULL_POINTER;
+        } else {
+            String symbol = runtime.getCompilerToVM().getSymbol(pointer);
+            return new HotSpotSymbol(symbol, pointer).asConstant();
+        }
+    }
 }
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaAccessProvider.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaAccessProvider.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2016, 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
@@ -78,6 +78,15 @@
         return new HotSpotSignature(runtime, signature);
     }
 
+    public HotSpotSymbol lookupSymbol(String symbol) {
+        long pointer = runtime.getCompilerToVM().lookupSymbol(symbol);
+        if (pointer == 0) {
+            return null;
+        } else {
+            return new HotSpotSymbol(symbol, pointer);
+        }
+    }
+
     /**
      * {@link Field} object of {@link Method#slot}.
      */
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaspaceConstant.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaspaceConstant.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2016, 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
@@ -29,4 +29,6 @@
     HotSpotResolvedObjectType asResolvedJavaType();
 
     HotSpotResolvedJavaMethod asResolvedJavaMethod();
+
+    HotSpotSymbol asSymbol();
 }
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaspaceConstantImpl.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaspaceConstantImpl.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2016, 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
@@ -108,4 +108,11 @@
         }
         return null;
     }
+
+    public HotSpotSymbol asSymbol() {
+        if (metaspaceObject instanceof HotSpotSymbol) {
+            return (HotSpotSymbol) metaspaceObject;
+        }
+        return null;
+    }
 }
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2016, 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
@@ -593,7 +593,7 @@
          */
         public String getName() {
             final int nameIndex = getNameIndex();
-            return isInternal() ? HotSpotVmSymbols.symbolAt(nameIndex) : getConstantPool().lookupUtf8(nameIndex);
+            return isInternal() ? HotSpotSymbol.symbolAt(nameIndex) : getConstantPool().lookupUtf8(nameIndex);
         }
 
         /**
@@ -602,7 +602,7 @@
          */
         public String getSignature() {
             final int signatureIndex = getSignatureIndex();
-            return isInternal() ? HotSpotVmSymbols.symbolAt(signatureIndex) : getConstantPool().lookupUtf8(signatureIndex);
+            return isInternal() ? HotSpotSymbol.symbolAt(signatureIndex) : getConstantPool().lookupUtf8(signatureIndex);
         }
 
         public JavaType getType() {
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotSymbol.java	Mon Mar 14 11:58:48 2016 +0100
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2014, 2016, 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.
+ */
+package jdk.vm.ci.hotspot;
+
+import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime;
+import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
+
+import jdk.vm.ci.meta.Constant;
+import sun.misc.Unsafe;
+
+/**
+ * Class to access the C++ {@code vmSymbols} table.
+ */
+public final class HotSpotSymbol implements MetaspaceWrapperObject {
+
+    private final String symbol;
+    private final long pointer;
+
+    HotSpotSymbol(String symbol, long pointer) {
+        this.symbol = symbol;
+        this.pointer = pointer;
+    }
+
+    public String getSymbol() {
+        return symbol;
+    }
+
+    public Constant asConstant() {
+        return HotSpotMetaspaceConstantImpl.forMetaspaceObject(this, false);
+    }
+
+    @Override
+    public long getMetaspacePointer() {
+        return pointer;
+    }
+
+    @Override
+    public String toString() {
+        return "Symbol<" + symbol + ">";
+    }
+
+    /**
+     * Returns the symbol in the {@code vmSymbols} table at position {@code index} as {@link String}
+     * .
+     *
+     * @param index position in the symbol table
+     * @return the symbol at position id
+     */
+    static String symbolAt(int index) {
+        HotSpotJVMCIRuntimeProvider runtime = runtime();
+        HotSpotVMConfig config = runtime.getConfig();
+        assert config.vmSymbolsFirstSID <= index && index < config.vmSymbolsSIDLimit : "index " + index + " is out of bounds";
+        assert config.symbolPointerSize == Unsafe.ADDRESS_SIZE : "the following address read is broken";
+        return runtime.getCompilerToVM().getSymbol(UNSAFE.getAddress(config.vmSymbolsSymbols + index * config.symbolPointerSize));
+    }
+}
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotVMConfig.java	Mon Mar 14 14:19:51 2016 +0100
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotVMConfig.java	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2016, 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
@@ -864,6 +864,7 @@
     @HotSpotVMField(name = "Klass::_modifier_flags", type = "jint", get = HotSpotVMField.Type.OFFSET) @Stable public int klassModifierFlagsOffset;
     @HotSpotVMField(name = "Klass::_access_flags", type = "AccessFlags", get = HotSpotVMField.Type.OFFSET) @Stable public int klassAccessFlagsOffset;
     @HotSpotVMField(name = "Klass::_layout_helper", type = "jint", get = HotSpotVMField.Type.OFFSET) @Stable public int klassLayoutHelperOffset;
+    @HotSpotVMField(name = "Klass::_name", type = "Symbol*", get = HotSpotVMField.Type.OFFSET) @Stable public int klassNameOffset;
 
     @HotSpotVMConstant(name = "Klass::_lh_neutral_value") @Stable public int klassLayoutHelperNeutralValue;
     @HotSpotVMConstant(name = "Klass::_lh_instance_slow_path_bit") @Stable public int klassLayoutHelperInstanceSlowPathBit;
@@ -1418,6 +1419,7 @@
     @HotSpotVMValue(expression = "JVMCIRuntime::monitorexit", get = HotSpotVMValue.Type.ADDRESS) @Stable public long monitorexitAddress;
     @HotSpotVMValue(expression = "JVMCIRuntime::create_null_exception", get = HotSpotVMValue.Type.ADDRESS) @Stable public long createNullPointerExceptionAddress;
     @HotSpotVMValue(expression = "JVMCIRuntime::create_out_of_bounds_exception", get = HotSpotVMValue.Type.ADDRESS) @Stable public long createOutOfBoundsExceptionAddress;
+    @HotSpotVMValue(expression = "JVMCIRuntime::throw_and_post_jvmti_exception", get = HotSpotVMValue.Type.ADDRESS) @Stable public long throwAndPostJvmtiExceptionAddress;
     @HotSpotVMValue(expression = "JVMCIRuntime::log_primitive", get = HotSpotVMValue.Type.ADDRESS) @Stable public long logPrimitiveAddress;
     @HotSpotVMValue(expression = "JVMCIRuntime::log_object", get = HotSpotVMValue.Type.ADDRESS) @Stable public long logObjectAddress;
     @HotSpotVMValue(expression = "JVMCIRuntime::log_printf", get = HotSpotVMValue.Type.ADDRESS) @Stable public long logPrintfAddress;
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotVmSymbols.java	Mon Mar 14 14:19:51 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,48 +0,0 @@
-/*
- * Copyright (c) 2014, 2015, 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.
- */
-package jdk.vm.ci.hotspot;
-
-import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime;
-import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
-import sun.misc.Unsafe;
-
-/**
- * Class to access the C++ {@code vmSymbols} table.
- */
-final class HotSpotVmSymbols {
-
-    /**
-     * Returns the symbol in the {@code vmSymbols} table at position {@code index} as {@link String}
-     * .
-     *
-     * @param index position in the symbol table
-     * @return the symbol at position id
-     */
-    static String symbolAt(int index) {
-        HotSpotJVMCIRuntimeProvider runtime = runtime();
-        HotSpotVMConfig config = runtime.getConfig();
-        assert config.vmSymbolsFirstSID <= index && index < config.vmSymbolsSIDLimit : "index " + index + " is out of bounds";
-        assert config.symbolPointerSize == Unsafe.ADDRESS_SIZE : "the following address read is broken";
-        return runtime.getCompilerToVM().getSymbol(UNSAFE.getAddress(config.vmSymbolsSymbols + index * config.symbolPointerSize));
-    }
-}
--- a/src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp	Mon Mar 14 11:58:48 2016 +0100
@@ -77,7 +77,7 @@
 #endif
   } else {
     NativeMovConstReg* move = nativeMovConstReg_at(pc);
-    Metadata* reference = record_metadata_reference(constant, CHECK);
+    MetaspaceObj* reference = record_metadata_reference(constant, CHECK);
     move->set_data((intptr_t)reference);
     TRACE_jvmci_3("relocating (metaspace constant) at %p/%p", pc, reference);
   }
--- a/src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp	Mon Mar 14 11:58:48 2016 +0100
@@ -94,7 +94,7 @@
 #endif
   } else {
     address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
-    *((Metadata**) operand) = record_metadata_reference(constant, CHECK);
+    *((MetaspaceObj**) operand) = record_metadata_reference(constant, CHECK);
     TRACE_jvmci_3("relocating (metaspace constant) at %p/%p", pc, operand);
   }
 }
--- a/src/share/vm/jvmci/jvmciCodeInstaller.cpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/jvmciCodeInstaller.cpp	Mon Mar 14 11:58:48 2016 +0100
@@ -159,7 +159,7 @@
   return map;
 }
 
-Metadata* CodeInstaller::record_metadata_reference(Handle constant, TRAPS) {
+MetaspaceObj* CodeInstaller::record_metadata_reference(Handle constant, TRAPS) {
   oop obj = HotSpotMetaspaceConstantImpl::metaspaceObject(constant);
   if (obj->is_a(HotSpotResolvedObjectTypeImpl::klass())) {
     Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj));
@@ -173,6 +173,11 @@
     int index = _oop_recorder->find_index(method);
     TRACE_jvmci_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), method->name()->as_C_string());
     return method;
+  } else if (obj->is_a(HotSpotSymbol::klass())) {
+    Symbol* symbol = (Symbol*) (address) HotSpotSymbol::pointer(obj);
+    assert(!HotSpotMetaspaceConstantImpl::compressed(constant), err_msg("unexpected compressed symbol pointer %s @ " INTPTR_FORMAT, symbol->as_C_string(), p2i(symbol)));
+    TRACE_jvmci_3("symbol = %s", symbol->as_C_string());
+    return (MetaspaceObj*) symbol;
   } else {
     JVMCI_ERROR_NULL("unexpected metadata reference for constant of type %s", obj->klass()->signature_name());
   }
@@ -607,7 +612,7 @@
         JVMCI_ERROR_OK("unexpected compressed Klass* in 32-bit mode");
 #endif
       } else {
-        *((Metadata**) dest) = record_metadata_reference(constant, CHECK_OK);
+        *((MetaspaceObj**) dest) = record_metadata_reference(constant, CHECK_OK);
       }
     } else if (constant->is_a(HotSpotObjectConstantImpl::klass())) {
       Handle obj = HotSpotObjectConstantImpl::object(constant);
--- a/src/share/vm/jvmci/jvmciCodeInstaller.hpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/jvmciCodeInstaller.hpp	Mon Mar 14 11:58:48 2016 +0100
@@ -123,7 +123,7 @@
   ScopeValue* get_scope_value(Handle value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second, TRAPS);
   MonitorValue* get_monitor_value(Handle value, GrowableArray<ScopeValue*>* objects, TRAPS);
 
-  Metadata* record_metadata_reference(Handle constant, TRAPS);
+  MetaspaceObj* record_metadata_reference(Handle constant, TRAPS);
 #ifdef _LP64
   narrowKlass record_narrow_metadata_reference(Handle constant, TRAPS);
 #endif
--- a/src/share/vm/jvmci/jvmciCompilerToVM.cpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/jvmciCompilerToVM.cpp	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2016, 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
@@ -849,6 +849,11 @@
   return JNIHandles::make_local(THREAD, sym());
 C2V_END
 
+C2V_VMENTRY(jlong, lookupSymbol, (JNIEnv*, jobject, jobject string))
+  Symbol* symbol = java_lang_String::as_symbol_or_null(JNIHandles::resolve(string));
+  return (jlong) symbol;
+C2V_END
+
 bool matches(jobjectArray methods, Method* method) {
   objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
 
@@ -1274,6 +1279,7 @@
   {CC"isMature",                                     CC"("METASPACE_METHOD_DATA")Z",                                                   FN_PTR(isMature)},
   {CC"hasCompiledCodeForOSR",                        CC"("HS_RESOLVED_METHOD"II)Z",                                                    FN_PTR(hasCompiledCodeForOSR)},
   {CC"getSymbol",                                    CC"(J)"STRING,                                                                    FN_PTR(getSymbol)},
+  {CC"lookupSymbol",                                 CC"("STRING")J",                                                                  FN_PTR(lookupSymbol)},
   {CC"getNextStackFrame",                            CC"("HS_STACK_FRAME_REF "["RESOLVED_METHOD"I)"HS_STACK_FRAME_REF,                 FN_PTR(getNextStackFrame)},
   {CC"materializeVirtualObjects",                    CC"("HS_STACK_FRAME_REF"Z)V",                                                     FN_PTR(materializeVirtualObjects)},
   {CC"shouldDebugNonSafepoints",                     CC"()Z",                                                                          FN_PTR(shouldDebugNonSafepoints)},
--- a/src/share/vm/jvmci/jvmciJavaClasses.hpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/jvmciJavaClasses.hpp	Mon Mar 14 11:58:48 2016 +0100
@@ -63,6 +63,9 @@
   start_class(HotSpotResolvedJavaMethodImpl)                                                                                                                   \
     long_field(HotSpotResolvedJavaMethodImpl, metaspaceMethod)                                                                                                 \
   end_class                                                                                                                                                    \
+  start_class(HotSpotSymbol)                                                                                                                                   \
+    long_field(HotSpotSymbol, pointer)                                                                                                                         \
+  end_class                                                                                                                                                    \
   start_class(InstalledCode)                                                                                                                                   \
     long_field(InstalledCode, address)                                                                                                                         \
     long_field(InstalledCode, entryPoint)                                                                                                                      \
--- a/src/share/vm/jvmci/jvmciRuntime.cpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/jvmciRuntime.cpp	Mon Mar 14 11:58:48 2016 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2016, 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
@@ -425,6 +425,10 @@
   }
 JRT_END
 
+JRT_ENTRY(void, JVMCIRuntime::throw_and_post_jvmti_exception(JavaThread* thread, Symbol* name, const char* message))
+  SharedRuntime::throw_and_post_jvmti_exception(thread, name, message);
+JRT_END
+
 JRT_LEAF(void, JVMCIRuntime::log_object(JavaThread* thread, oopDesc* obj, bool as_string, bool newline))
   ttyLocker ttyl;
 
--- a/src/share/vm/jvmci/jvmciRuntime.hpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/jvmciRuntime.hpp	Mon Mar 14 11:58:48 2016 +0100
@@ -205,6 +205,7 @@
   static void monitorexit (JavaThread* thread, oopDesc* obj, BasicLock* lock);
   static void create_null_exception(JavaThread* thread);
   static void create_out_of_bounds_exception(JavaThread* thread, jint index);
+  static void throw_and_post_jvmti_exception(JavaThread* thread, Symbol* name, const char* message);
   static void vm_error(JavaThread* thread, jlong where, jlong format, jlong value);
   static oopDesc* load_and_clear_exception(JavaThread* thread);
   static void log_printf(JavaThread* thread, oopDesc* format, jlong v1, jlong v2, jlong v3);
--- a/src/share/vm/jvmci/systemDictionary_jvmci.hpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/systemDictionary_jvmci.hpp	Mon Mar 14 11:58:48 2016 +0100
@@ -46,6 +46,7 @@
   do_klass(HotSpotJVMCIMetaAccessContext_klass,          jdk_vm_ci_hotspot_HotSpotJVMCIMetaAccessContext,       Jvmci) \
   do_klass(HotSpotJVMCIRuntime_klass,                    jdk_vm_ci_hotspot_HotSpotJVMCIRuntime,                 Jvmci) \
   do_klass(HotSpotSpeculationLog_klass,                  jdk_vm_ci_hotspot_HotSpotSpeculationLog,               Jvmci) \
+  do_klass(HotSpotSymbol_klass,                          jdk_vm_ci_hotspot_HotSpotSymbol,                       Jvmci) \
   do_klass(Assumptions_ConcreteMethod_klass,             jdk_vm_ci_meta_Assumptions_ConcreteMethod,             Jvmci) \
   do_klass(Assumptions_NoFinalizableSubclass_klass,      jdk_vm_ci_meta_Assumptions_NoFinalizableSubclass,      Jvmci) \
   do_klass(Assumptions_ConcreteSubtype_klass,            jdk_vm_ci_meta_Assumptions_ConcreteSubtype,            Jvmci) \
--- a/src/share/vm/jvmci/vmSymbols_jvmci.hpp	Mon Mar 14 14:19:51 2016 +0100
+++ b/src/share/vm/jvmci/vmSymbols_jvmci.hpp	Mon Mar 14 11:58:48 2016 +0100
@@ -47,6 +47,7 @@
   template(jdk_vm_ci_hotspot_HotSpotJVMCIMetaAccessContext,       "jdk/vm/ci/hotspot/HotSpotJVMCIMetaAccessContext")                      \
   template(jdk_vm_ci_hotspot_HotSpotJVMCIRuntime,                 "jdk/vm/ci/hotspot/HotSpotJVMCIRuntime")                                \
   template(jdk_vm_ci_hotspot_HotSpotSpeculationLog,               "jdk/vm/ci/hotspot/HotSpotSpeculationLog")                              \
+  template(jdk_vm_ci_hotspot_HotSpotSymbol,                       "jdk/vm/ci/hotspot/HotSpotSymbol")                                      \
   template(jdk_vm_ci_meta_JavaConstant,                           "jdk/vm/ci/meta/JavaConstant")                                          \
   template(jdk_vm_ci_meta_PrimitiveConstant,                      "jdk/vm/ci/meta/PrimitiveConstant")                                     \
   template(jdk_vm_ci_meta_RawConstant,                            "jdk/vm/ci/meta/RawConstant")                                           \