1b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith/* 2b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * Copyright (C) 2014 The Android Open Source Project 3b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * 4b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * Licensed under the Apache License, Version 2.0 (the "License"); 5b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * you may not use this file except in compliance with the License. 6b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * You may obtain a copy of the License at 7b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * 8b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * http://www.apache.org/licenses/LICENSE-2.0 9b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * 10b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * Unless required by applicable law or agreed to in writing, software 11b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * distributed under the License is distributed on an "AS IS" BASIS, 12b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * See the License for the specific language governing permissions and 14b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith * limitations under the License. 15b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith */ 16b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 17b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith#ifndef ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_ 18b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith#define ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_ 19b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 20b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith#include "arch/context.h" 21b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith#include "base/logging.h" 22794ad76e8d5b5b9132819d5b08a0570e27615644Andreas Gampe#include "base/macros.h" 23b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith#include "registers_arm64.h" 24b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 25b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteithnamespace art { 26b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteithnamespace arm64 { 27b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 28b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteithclass Arm64Context : public Context { 29b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith public: 30b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith Arm64Context() { 31b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith Reset(); 32b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith } 33b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 34b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith ~Arm64Context() {} 35b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 360bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz void Reset() OVERRIDE; 37b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 383283820e3983dc7b8c4808e923844047213283f3Chih-Hung Hsieh void FillCalleeSaves(const StackVisitor& fr) OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 39b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 400bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz void SetSP(uintptr_t new_sp) OVERRIDE { 4196ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz SetGPR(SP, new_sp); 42b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith } 43b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 440bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz void SetPC(uintptr_t new_lr) OVERRIDE { 4596ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz SetGPR(LR, new_lr); 4696ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz } 4796ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz 4896ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz bool IsAccessibleGPR(uint32_t reg) OVERRIDE { 4996ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfXRegisters)); 5096ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz return gprs_[reg] != nullptr; 51b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith } 52b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 530bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz uintptr_t* GetGPRAddress(uint32_t reg) OVERRIDE { 5437c92df53979f9f6ab83155ab9521d554d717161Alexandre Rames DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfXRegisters)); 55b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith return gprs_[reg]; 56b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith } 57b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 5896ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz uintptr_t GetGPR(uint32_t reg) OVERRIDE { 5937c92df53979f9f6ab83155ab9521d554d717161Alexandre Rames DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfXRegisters)); 6096ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz DCHECK(IsAccessibleGPR(reg)); 6196ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz return *gprs_[reg]; 62b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith } 63b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 6496ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz void SetGPR(uint32_t reg, uintptr_t value) OVERRIDE; 6596ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz 6696ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz bool IsAccessibleFPR(uint32_t reg) OVERRIDE { 6796ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfDRegisters)); 6896ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz return fprs_[reg] != nullptr; 6996ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz } 700bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz 7196ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz uintptr_t GetFPR(uint32_t reg) OVERRIDE { 720bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfDRegisters)); 7396ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz DCHECK(IsAccessibleFPR(reg)); 7496ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz return *fprs_[reg]; 750bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz } 760bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz 7796ba8dc82e7bd859106af837623fe8b2e9e772c3Sebastien Hertz void SetFPR(uint32_t reg, uintptr_t value) OVERRIDE; 780bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz 790bcb2902ec21393d71c94e63aa6733cb5311a0ccSebastien Hertz void SmashCallerSaves() OVERRIDE; 80794ad76e8d5b5b9132819d5b08a0570e27615644Andreas Gampe NO_RETURN void DoLongJump() OVERRIDE; 81b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 82b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith private: 832cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier // Pointers to register locations, initialized to null or the specific registers below. 8437c92df53979f9f6ab83155ab9521d554d717161Alexandre Rames uintptr_t* gprs_[kNumberOfXRegisters]; 85b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith uint64_t * fprs_[kNumberOfDRegisters]; 86b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith // Hold values for sp and pc if they are not located within a stack frame. 87b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith uintptr_t sp_, pc_; 88b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith}; 89b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 90b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith} // namespace arm64 91b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith} // namespace art 92b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith 93b95a5345ae4217b70ca36f0cced92f68dda7caf5Stuart Monteith#endif // ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_ 94