| /* |
| * Copyright (c) 2008, 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 CPU_ARM_VM_FRAME_ARM_HPP |
| #define CPU_ARM_VM_FRAME_ARM_HPP |
| |
| #include "runtime/synchronizer.hpp" |
| |
| public: |
| enum { |
| pc_return_offset = 0, |
| // All frames |
| link_offset = 0, |
| return_addr_offset = 1, |
| // non-interpreter frames |
| sender_sp_offset = 2, |
| |
| // Interpreter frames |
| #ifdef AARCH64 |
| interpreter_frame_gp_saved_result_offset = 4, // for native calls only |
| interpreter_frame_fp_saved_result_offset = 3, // for native calls only |
| #endif |
| interpreter_frame_oop_temp_offset = 2, // for native calls only |
| |
| interpreter_frame_sender_sp_offset = -1, |
| #ifdef AARCH64 |
| interpreter_frame_stack_top_offset = interpreter_frame_sender_sp_offset - 1, |
| interpreter_frame_extended_sp_offset = interpreter_frame_stack_top_offset - 1, |
| interpreter_frame_method_offset = interpreter_frame_extended_sp_offset - 1, |
| #else |
| // outgoing sp before a call to an invoked method |
| interpreter_frame_last_sp_offset = interpreter_frame_sender_sp_offset - 1, |
| interpreter_frame_method_offset = interpreter_frame_last_sp_offset - 1, |
| #endif // AARCH64 |
| interpreter_frame_mirror_offset = interpreter_frame_method_offset - 1, |
| interpreter_frame_mdp_offset = interpreter_frame_mirror_offset - 1, |
| interpreter_frame_cache_offset = interpreter_frame_mdp_offset - 1, |
| interpreter_frame_locals_offset = interpreter_frame_cache_offset - 1, |
| interpreter_frame_bcp_offset = interpreter_frame_locals_offset - 1, |
| interpreter_frame_initial_sp_offset = interpreter_frame_bcp_offset - 1, |
| |
| interpreter_frame_monitor_block_top_offset = interpreter_frame_initial_sp_offset, |
| interpreter_frame_monitor_block_bottom_offset = interpreter_frame_initial_sp_offset, |
| |
| // Entry frames |
| entry_frame_call_wrapper_offset = AARCH64_ONLY(2) NOT_AARCH64(0) |
| }; |
| |
| intptr_t ptr_at(int offset) const { |
| return *ptr_at_addr(offset); |
| } |
| |
| void ptr_at_put(int offset, intptr_t value) { |
| *ptr_at_addr(offset) = value; |
| } |
| |
| private: |
| // an additional field beyond _sp and _pc: |
| intptr_t* _fp; // frame pointer |
| // The interpreter and adapters will extend the frame of the caller. |
| // Since oopMaps are based on the sp of the caller before extension |
| // we need to know that value. However in order to compute the address |
| // of the return address we need the real "raw" sp. Since sparc already |
| // uses sp() to mean "raw" sp and unextended_sp() to mean the caller's |
| // original sp we use that convention. |
| |
| intptr_t* _unextended_sp; |
| void adjust_unextended_sp(); |
| |
| intptr_t* ptr_at_addr(int offset) const { |
| return (intptr_t*) addr_at(offset); |
| } |
| |
| #ifdef ASSERT |
| // Used in frame::sender_for_{interpreter,compiled}_frame |
| static void verify_deopt_original_pc( CompiledMethod* nm, intptr_t* unextended_sp, bool is_method_handle_return = false); |
| static void verify_deopt_mh_original_pc(CompiledMethod* nm, intptr_t* unextended_sp) { |
| verify_deopt_original_pc(nm, unextended_sp, true); |
| } |
| #endif |
| |
| public: |
| // Constructors |
| |
| frame(intptr_t* sp, intptr_t* fp, address pc); |
| |
| frame(intptr_t* sp, intptr_t* unextended_sp, intptr_t* fp, address pc); |
| |
| #ifndef AARCH64 |
| frame(intptr_t* sp, intptr_t* fp); |
| #endif // !AARCH64 |
| |
| void init(intptr_t* sp, intptr_t* fp, address pc); |
| |
| // accessors for the instance variables |
| // Note: not necessarily the real 'frame pointer' (see real_fp) |
| intptr_t* fp() const { return _fp; } |
| |
| inline address* sender_pc_addr() const; |
| |
| #ifdef AARCH64 |
| // Used by template based interpreter deoptimization |
| void interpreter_frame_set_stack_top(intptr_t* stack_top); |
| void interpreter_frame_set_extended_sp(intptr_t* sp); |
| |
| #else |
| // expression stack tos if we are nested in a java call |
| intptr_t* interpreter_frame_last_sp() const; |
| |
| // deoptimization support |
| void interpreter_frame_set_last_sp(intptr_t* sp); |
| #endif // AARCH64 |
| |
| // helper to update a map with callee-saved FP |
| static void update_map_with_saved_link(RegisterMap* map, intptr_t** link_addr); |
| |
| #endif // CPU_ARM_VM_FRAME_ARM_HPP |