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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
//===-- RegisterContextThreadMemory.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_RegisterContextThreadMemory_h_
#define lldb_RegisterContextThreadMemory_h_
#include <vector>
#include "lldb/lldb-private.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Symbol/SymbolContext.h"
namespace lldb_private {
class RegisterContextThreadMemory : public lldb_private::RegisterContext
{
public:
RegisterContextThreadMemory (Thread &thread,
lldb::addr_t register_data_addr);
virtual ~RegisterContextThreadMemory();
//------------------------------------------------------------------
// Subclasses must override these functions
//------------------------------------------------------------------
virtual void
InvalidateAllRegisters ();
virtual size_t
GetRegisterCount ();
virtual const RegisterInfo *
GetRegisterInfoAtIndex (size_t reg);
virtual size_t
GetRegisterSetCount ();
virtual const RegisterSet *
GetRegisterSet (size_t reg_set);
virtual bool
ReadRegister (const RegisterInfo *reg_info, RegisterValue ®_value);
virtual bool
WriteRegister (const RegisterInfo *reg_info, const RegisterValue ®_value);
// These two functions are used to implement "push" and "pop" of register states. They are used primarily
// for expression evaluation, where we need to push a new state (storing the old one in data_sp) and then
// restoring the original state by passing the data_sp we got from ReadAllRegisters to WriteAllRegisterValues.
// ReadAllRegisters will do what is necessary to return a coherent set of register values for this thread, which
// may mean e.g. interrupting a thread that is sitting in a kernel trap. That is a somewhat disruptive operation,
// so these API's should only be used when this behavior is needed.
virtual bool
ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
virtual bool
WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
bool
CopyFromRegisterContext (lldb::RegisterContextSP context);
virtual uint32_t
ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
//------------------------------------------------------------------
// Subclasses can override these functions if desired
//------------------------------------------------------------------
virtual uint32_t
NumSupportedHardwareBreakpoints ();
virtual uint32_t
SetHardwareBreakpoint (lldb::addr_t addr, size_t size);
virtual bool
ClearHardwareBreakpoint (uint32_t hw_idx);
virtual uint32_t
NumSupportedHardwareWatchpoints ();
virtual uint32_t
SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write);
virtual bool
ClearHardwareWatchpoint (uint32_t hw_index);
virtual bool
HardwareSingleStep (bool enable);
virtual Error
ReadRegisterValueFromMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr, uint32_t src_len, RegisterValue ®_value);
virtual Error
WriteRegisterValueToMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr, uint32_t dst_len, const RegisterValue ®_value);
protected:
void
UpdateRegisterContext ();
lldb::ThreadWP m_thread_wp;
lldb::RegisterContextSP m_reg_ctx_sp;
lldb::addr_t m_register_data_addr;
uint32_t m_stop_id;
private:
DISALLOW_COPY_AND_ASSIGN (RegisterContextThreadMemory);
};
} // namespace lldb_private
#endif // lldb_RegisterContextThreadMemory_h_
|
