Mercurial > hg > truffle
diff src/share/vm/graal/graalVmIds.hpp @ 2890:c23d45daff9b
Renamed cpp/hpp file directory.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 08 Jun 2011 13:40:25 +0200 |
parents | src/share/vm/c1x/graalVmIds.hpp@2fb867285938 |
children | f00918f35c7f |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/graal/graalVmIds.hpp Wed Jun 08 13:40:25 2011 +0200 @@ -0,0 +1,152 @@ +/* + * Copyright (c) 2011, 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. + */ + +#include "memory/allocation.hpp" +#include "utilities/growableArray.hpp" +#include "oops/oop.hpp" +#include "runtime/handles.hpp" +#include "runtime/thread.hpp" +#include "classfile/javaClasses.hpp" +#include "runtime/jniHandles.hpp" + +class VmIds : public AllStatic { + +private: + static GrowableArray<address>* _stubs; + static GrowableArray<jobject>* _localHandles; + + static oop getObject(jlong id); + +public: + // these constants needs to have the same values as the one in HotSpotProxy.java + static const jlong STUB = 0x100000000000000LL; // address + static const jlong METHOD = 0x200000000000000LL; // methodOop + static const jlong CLASS = 0x300000000000000LL; // klassOop + static const jlong CONSTANT_POOL = 0x500000000000000LL; // constantPoolOop + static const jlong CONSTANT = 0x600000000000000LL; // oop + static const jlong TYPE_MASK = 0xf00000000000000LL; + static const jlong DUMMY_CONSTANT = 0x6ffffffffffffffLL; + + // Initializes the VmIds for a compilation, by creating the arrays + static void initializeObjects(); + // Cleans up after a compilation, by deallocating the arrays + static void cleanupLocalObjects(); + + // Adds a stub address, and returns the corresponding vmId (which is of type STUB) + static jlong addStub(address stub); + + // Adds an object, and returns the corresponding vmId (with the given type) + static jlong add(Handle obj, jlong type); + + // Adds an object, and returns the corresponding vmId (the type of which is determined by the template parameter) + template <typename T> static jlong add(T obj); + + + // Returns the stub address with the given vmId + static address getStub(jlong id); + // Returns the stub address with the given vmId taken from a java.lang.Long + static address getStub(oop id); + + // Returns the object with the given id, the return type is defined by the template parameter (which must correspond to the actual type of the vmId) + template <typename T> static T get(jlong id); + + + // Helper function to convert a symbol to a java.lang.String object + template <typename T> static T toString(Symbol* symbol, TRAPS); + + // Helper function to convert a java.lang.String object to a symbol (this will return NULL if the symbol doesn't exist in the system) + static Symbol* toSymbol(jstring string); + + // Helper function to get the contents of a java.lang.Long + static jlong getBoxedLong(oop obj); +}; + + +template <> inline jlong VmIds::add<methodOop>(methodOop obj){ + assert(obj != NULL, "trying to add NULL<methodOop>"); + assert(obj->is_method(), "trying to add mistyped object"); + return add(Handle(obj), METHOD); +} +template <> inline jlong VmIds::add<klassOop>(klassOop obj) { + assert(obj != NULL, "trying to add NULL<klassOop>"); + assert(obj->is_klass(), "trying to add mistyped object"); + return add(Handle(obj), CLASS); +} +template <> inline jlong VmIds::add<constantPoolOop>(constantPoolOop obj) { + assert(obj != NULL, "trying to add NULL<constantPoolOop>"); + assert(obj->is_constantPool(), "trying to add mistyped object"); + return add(Handle(obj), CONSTANT_POOL); +} +template <> inline jlong VmIds::add<oop>(oop obj) { + assert(obj != NULL, "trying to add NULL<oop>"); + assert(obj->is_oop(), "trying to add mistyped object"); + return add(Handle(obj), CONSTANT); +} + + +template <> inline methodOop VmIds::get<methodOop>(jlong id){ + assert((id & TYPE_MASK) == METHOD, "METHOD expected"); + assert(getObject(id)->is_method(), "methodOop expected"); + return (methodOop)getObject(id); +} +template <> inline klassOop VmIds::get<klassOop>(jlong id) { + assert((id & TYPE_MASK) == CLASS, "CLASS expected"); + assert(getObject(id)->is_klass(), "klassOop expected"); + return (klassOop)getObject(id); +} +template <> inline constantPoolOop VmIds::get<constantPoolOop>(jlong id) { + assert((id & TYPE_MASK) == CONSTANT_POOL, "CONSTANT_POOL expected"); + assert(getObject(id)->is_constantPool(), "constantPoolOop expected"); + return (constantPoolOop)getObject(id); +} +template <> inline oop VmIds::get<oop>(jlong id) { + assert((id & TYPE_MASK) == CONSTANT, "CONSTANT expected"); + assert(getObject(id)->is_oop(true), "oop expected"); + return (oop)getObject(id); +} + +inline address VmIds::getStub(oop obj) { + return getStub(getBoxedLong(obj)); +} + +template <> inline Handle VmIds::toString<Handle>(Symbol* symbol, TRAPS) { + return java_lang_String::create_from_symbol(symbol, THREAD); +} +template <> inline oop VmIds::toString<oop>(Symbol* symbol, TRAPS) { + return toString<Handle>(symbol, THREAD)(); +} +template <> inline jstring VmIds::toString<jstring>(Symbol* symbol, TRAPS) { + return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD)); +} +template <> inline jobject VmIds::toString<jobject>(Symbol* symbol, TRAPS) { + return JNIHandles::make_local(toString<oop>(symbol, THREAD)); +} + +inline Symbol* VmIds::toSymbol(jstring string) { + return java_lang_String::as_symbol_or_null(JNIHandles::resolve(string)); +} + +inline jlong VmIds::getBoxedLong(oop obj) { + assert(obj->is_oop(true), "cannot unbox null or non-oop"); + return obj->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG)); +}