Mercurial > hg > truffle
view src/share/vm/runtime/vframe_hp.hpp @ 1949:058f494c8b6d
Merge
author | trims |
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date | Fri, 10 Dec 2010 15:46:59 -0800 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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/* * Copyright (c) 1997, 2009, 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. * */ class compiledVFrame: public javaVFrame { public: // JVM state methodOop method() const; int bci() const; bool should_reexecute() const; StackValueCollection* locals() const; StackValueCollection* expressions() const; GrowableArray<MonitorInfo*>* monitors() const; void set_locals(StackValueCollection* values) const; // Virtuals defined in vframe bool is_compiled_frame() const { return true; } vframe* sender() const; bool is_top() const; // Casting static compiledVFrame* cast(vframe* vf) { assert(vf == NULL || vf->is_compiled_frame(), "must be compiled frame"); return (compiledVFrame*) vf; } public: // Constructors compiledVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread, nmethod* nm); // Update a local in a compiled frame. Update happens when deopt occurs void update_local(BasicType type, int index, jvalue value); // Returns the active nmethod nmethod* code() const; // Returns the scopeDesc ScopeDesc* scope() const { return _scope; } // Returns SynchronizationEntryBCI or bci() (used for synchronization) int raw_bci() const; protected: ScopeDesc* _scope; //StackValue resolve(ScopeValue* sv) const; BasicLock* resolve_monitor_lock(Location location) const; StackValue *create_stack_value(ScopeValue *sv) const; private: compiledVFrame(const frame* fr, const RegisterMap* reg_map, JavaThread* thread, ScopeDesc* scope); #ifndef PRODUCT public: void verify() const; #endif }; // In order to implement set_locals for compiled vframes we must // store updated locals in a data structure that contains enough // information to recognize equality with a vframe and to store // any updated locals. class jvmtiDeferredLocalVariable; class jvmtiDeferredLocalVariableSet : public CHeapObj { private: methodOop _method; // must be GC'd int _bci; intptr_t* _id; GrowableArray<jvmtiDeferredLocalVariable*>* _locals; public: // JVM state methodOop method() const { return _method; } int bci() const { return _bci; } intptr_t* id() const { return _id; } GrowableArray<jvmtiDeferredLocalVariable*>* locals() const { return _locals; } void set_local_at(int idx, BasicType typ, jvalue val); // Does the vframe match this jvmtiDeferredLocalVariableSet bool matches(vframe* vf); // GC void oops_do(OopClosure* f); // constructor jvmtiDeferredLocalVariableSet(methodOop method, int bci, intptr_t* id); // destructor ~jvmtiDeferredLocalVariableSet(); }; class jvmtiDeferredLocalVariable : public CHeapObj { public: jvmtiDeferredLocalVariable(int index, BasicType type, jvalue value); BasicType type(void) { return _type; } int index(void) { return _index; } jvalue value(void) { return _value; } // Only mutator is for value as only it can change void set_value(jvalue value) { _value = value; } // For gc oop* oop_addr(void) { return (oop*) &_value.l; } private: BasicType _type; jvalue _value; int _index; };