aboutsummaryrefslogtreecommitdiff
path: root/source/Plugins/Process/Linux/NativeRegisterContextLinux.h
blob: a16c65b64a07743736f3297103caf79cf7876742 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
//===-- NativeRegisterContextLinux.h ----------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef lldb_NativeRegisterContextLinux_h
#define lldb_NativeRegisterContextLinux_h

#include "lldb/Host/common/NativeRegisterContextRegisterInfo.h"
#include "lldb/Host/common/NativeThreadProtocol.h"

#include "Plugins/Process/Linux/NativeProcessLinux.h"

namespace lldb_private {
namespace process_linux {

class NativeRegisterContextLinux : public NativeRegisterContextRegisterInfo {
public:
  NativeRegisterContextLinux(NativeThreadProtocol &native_thread,
                             uint32_t concrete_frame_idx,
                             RegisterInfoInterface *reg_info_interface_p);

  // This function is implemented in the NativeRegisterContextLinux_* subclasses
  // to create a new
  // instance of the host specific NativeRegisterContextLinux. The
  // implementations can't collide
  // as only one NativeRegisterContextLinux_* variant should be compiled into
  // the final
  // executable.
  static NativeRegisterContextLinux *
  CreateHostNativeRegisterContextLinux(const ArchSpec &target_arch,
                                       NativeThreadProtocol &native_thread,
                                       uint32_t concrete_frame_idx);

protected:
  lldb::ByteOrder GetByteOrder() const;

  virtual Error ReadRegisterRaw(uint32_t reg_index, RegisterValue &reg_value);

  virtual Error WriteRegisterRaw(uint32_t reg_index,
                                 const RegisterValue &reg_value);

  virtual Error ReadRegisterSet(void *buf, size_t buf_size,
                                unsigned int regset);

  virtual Error WriteRegisterSet(void *buf, size_t buf_size,
                                 unsigned int regset);

  virtual Error ReadGPR();

  virtual Error WriteGPR();

  virtual Error ReadFPR();

  virtual Error WriteFPR();

  virtual void *GetGPRBuffer() { return nullptr; }

  virtual size_t GetGPRSize() {
    return GetRegisterInfoInterface().GetGPRSize();
  }

  virtual void *GetFPRBuffer() { return nullptr; }

  virtual size_t GetFPRSize() { return 0; }

  // The Do*** functions are executed on the privileged thread and can perform
  // ptrace
  // operations directly.
  virtual Error DoReadRegisterValue(uint32_t offset, const char *reg_name,
                                    uint32_t size, RegisterValue &value);

  virtual Error DoWriteRegisterValue(uint32_t offset, const char *reg_name,
                                     const RegisterValue &value);

  virtual Error DoReadGPR(void *buf, size_t buf_size);

  virtual Error DoWriteGPR(void *buf, size_t buf_size);

  virtual Error DoReadFPR(void *buf, size_t buf_size);

  virtual Error DoWriteFPR(void *buf, size_t buf_size);
};

} // namespace process_linux
} // namespace lldb_private

#endif // #ifndef lldb_NativeRegisterContextLinux_h