| /* |
| * Copyright (c) 1997, 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. |
| * |
| */ |
| |
| #ifndef SHARE_VM_RUNTIME_VFRAME_HP_HPP |
| #define SHARE_VM_RUNTIME_VFRAME_HP_HPP |
| |
| #include "runtime/vframe.hpp" |
| |
| class compiledVFrame: public javaVFrame { |
| public: |
| // JVM state |
| Method* method() const; |
| int bci() const; |
| bool should_reexecute() const; |
| StackValueCollection* locals() const; |
| StackValueCollection* expressions() const; |
| GrowableArray<MonitorInfo*>* monitors() const; |
| int vframe_id() const { return _vframe_id; } |
| |
| 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, CompiledMethod* 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 |
| CompiledMethod* code() const; |
| |
| // Returns the scopeDesc |
| ScopeDesc* scope() const { return _scope; } |
| |
| // Returns SynchronizationEntryBCI or bci() (used for synchronization) |
| int raw_bci() const; |
| |
| protected: |
| ScopeDesc* _scope; |
| int _vframe_id; |
| |
| //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, int vframe_id); |
| |
| #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<mtCompiler> { |
| private: |
| |
| Method* _method; |
| int _bci; |
| intptr_t* _id; |
| int _vframe_id; |
| GrowableArray<jvmtiDeferredLocalVariable*>* _locals; |
| |
| public: |
| // JVM state |
| Method* method() const { return _method; } |
| int bci() const { return _bci; } |
| intptr_t* id() const { return _id; } |
| int vframe_id() const { return _vframe_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(Method* method, int bci, intptr_t* id, int vframe_id); |
| |
| // destructor |
| ~jvmtiDeferredLocalVariableSet(); |
| |
| |
| }; |
| |
| class jvmtiDeferredLocalVariable : public CHeapObj<mtCompiler> { |
| 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; |
| |
| }; |
| |
| #endif // SHARE_VM_RUNTIME_VFRAME_HP_HPP |