| /* |
| * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2008, 2009 Red Hat, Inc. |
| * 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_SHARK_SHARKSTATESCANNER_HPP |
| #define SHARE_VM_SHARK_SHARKSTATESCANNER_HPP |
| |
| #include "memory/allocation.hpp" |
| #include "shark/llvmHeaders.hpp" |
| #include "shark/sharkFunction.hpp" |
| #include "shark/sharkInvariants.hpp" |
| |
| class SharkState; |
| |
| class SharkStateScanner : public SharkTargetInvariants { |
| protected: |
| SharkStateScanner(SharkFunction* function) |
| : SharkTargetInvariants(function), _stack(function->stack()) {} |
| |
| private: |
| SharkStack* _stack; |
| |
| protected: |
| SharkStack* stack() const { |
| return _stack; |
| } |
| |
| // Scan the frame |
| public: |
| void scan(SharkState* state); |
| |
| // Callbacks |
| // Note that the offsets supplied to the various process_* callbacks |
| // are specified in wordSize words from the frame's unextended_sp. |
| protected: |
| virtual void start_frame() {} |
| |
| virtual void start_stack(int stack_depth) {} |
| virtual void process_stack_slot(int index, SharkValue** value, int offset) {} |
| virtual void end_stack() {} |
| |
| virtual void start_monitors(int num_monitors) {} |
| virtual void process_monitor(int index, int box_offset, int obj_offset) {} |
| virtual void end_monitors() {} |
| |
| virtual void start_frame_header() {} |
| virtual void process_oop_tmp_slot(llvm::Value** value, int offset) {} |
| virtual void process_method_slot(llvm::Value** value, int offset) {} |
| virtual void process_pc_slot(int offset) {} |
| virtual void end_frame_header() {} |
| |
| virtual void start_locals() {} |
| virtual void process_local_slot(int index, SharkValue** value, int offset) {} |
| virtual void end_locals() {} |
| |
| virtual void end_frame() {} |
| |
| // Integrity checks |
| private: |
| void stack_integrity_checks(SharkState* state) PRODUCT_RETURN; |
| void locals_integrity_checks(SharkState* state) PRODUCT_RETURN; |
| }; |
| |
| #endif // SHARE_VM_SHARK_SHARKSTATESCANNER_HPP |