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_X86_H
18#define _LIBUNWINDSTACK_REGS_X86_H
19
20#include <stdint.h>
21
22#include <functional>
23
24#include <unwindstack/Elf.h>
25#include <unwindstack/Regs.h>
26
27namespace unwindstack {
28
29// Forward declarations.
30class Memory;
31struct x86_ucontext_t;
32
33class RegsX86 : public RegsImpl<uint32_t> {
34 public:
35  RegsX86();
36  virtual ~RegsX86() = default;
37
38  ArchEnum Arch() override final;
39
40  uint64_t GetPcAdjustment(uint64_t rel_pc, Elf* elf) override;
41
42  bool SetPcFromReturnAddress(Memory* process_memory) override;
43
44  bool StepIfSignalHandler(uint64_t rel_pc, Elf* elf, Memory* process_memory) override;
45
46  void SetFromUcontext(x86_ucontext_t* ucontext);
47
48  void IterateRegisters(std::function<void(const char*, uint64_t)>) override final;
49
50  uint64_t pc() override;
51  uint64_t sp() override;
52
53  void set_pc(uint64_t pc) override;
54  void set_sp(uint64_t sp) override;
55
56  Regs* Clone() override final;
57
58  static Regs* Read(void* data);
59
60  static Regs* CreateFromUcontext(void* ucontext);
61};
62
63}  // namespace unwindstack
64
65#endif  // _LIBUNWINDSTACK_REGS_X86_H
66