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 #ifndef _LIBUNWINDSTACK_REGS_ARM64_H 18 #define _LIBUNWINDSTACK_REGS_ARM64_H 19 20 #include <stdint.h> 21 22 #include <functional> 23 24 #include <unwindstack/Elf.h> 25 #include <unwindstack/MachineArm64.h> 26 #include <unwindstack/Regs.h> 27 28 namespace unwindstack { 29 30 // Forward declarations. 31 class Memory; 32 33 class RegsArm64 : public RegsImpl<uint64_t> { 34 public: 35 RegsArm64(); 36 virtual ~RegsArm64() = default; 37 38 ArchEnum Arch() override final; 39 40 bool SetPcFromReturnAddress(Memory* process_memory) override; 41 42 bool StepIfSignalHandler(uint64_t elf_offset, Elf* elf, Memory* process_memory) override; 43 44 void IterateRegisters(std::function<void(const char*, uint64_t)>) override final; 45 46 uint64_t pc() override; 47 uint64_t sp() override; 48 49 void set_pc(uint64_t pc) override; 50 void set_sp(uint64_t sp) override; 51 52 void fallback_pc() override; 53 54 void ResetPseudoRegisters() override; 55 56 bool SetPseudoRegister(uint16_t id, uint64_t value) override; 57 58 bool GetPseudoRegister(uint16_t id, uint64_t* value) override; 59 60 bool IsRASigned(); 61 62 void SetPACMask(uint64_t mask); 63 64 Regs* Clone() override final; 65 66 static Regs* Read(void* data); 67 68 static Regs* CreateFromUcontext(void* ucontext); 69 70 protected: 71 uint64_t pseudo_regs_[Arm64Reg::ARM64_PREG_LAST - Arm64Reg::ARM64_PREG_FIRST]; 72 uint64_t pac_mask_; 73 }; 74 75 } // namespace unwindstack 76 77 #endif // _LIBUNWINDSTACK_REGS_ARM64_H 78