1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <stdint.h> 20 21 #include <functional> 22 23 #include <unwindstack/Elf.h> 24 #include <unwindstack/MachineArm64.h> 25 #include <unwindstack/Regs.h> 26 27 namespace unwindstack { 28 29 // Forward declarations. 30 class Memory; 31 32 class RegsArm64 : public RegsImpl<uint64_t> { 33 public: 34 RegsArm64(); 35 virtual ~RegsArm64() = default; 36 37 ArchEnum Arch() override final; 38 39 bool SetPcFromReturnAddress(Memory* process_memory) override; 40 41 bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override; 42 43 void IterateRegisters(std::function<void(const char*, uint64_t)>) override final; 44 45 uint64_t pc() override; 46 uint64_t sp() override; 47 48 void set_pc(uint64_t pc) override; 49 void set_sp(uint64_t sp) override; 50 51 void fallback_pc() override; 52 53 void ResetPseudoRegisters() override; 54 55 bool SetPseudoRegister(uint16_t id, uint64_t value) override; 56 57 bool GetPseudoRegister(uint16_t id, uint64_t* value) override; 58 59 bool IsRASigned(); 60 61 void SetPACMask(uint64_t mask); 62 63 Regs* Clone() override final; 64 65 static Regs* Read(const void* data); 66 67 static Regs* CreateFromUcontext(void* ucontext); 68 69 protected: 70 uint64_t pseudo_regs_[Arm64Reg::ARM64_PREG_LAST - Arm64Reg::ARM64_PREG_FIRST]; 71 uint64_t pac_mask_; 72 }; 73 74 } // namespace unwindstack 75