1 //===-- EmulationStateARM.h -------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLDB_SOURCE_PLUGINS_INSTRUCTION_ARM_EMULATIONSTATEARM_H
10 #define LLDB_SOURCE_PLUGINS_INSTRUCTION_ARM_EMULATIONSTATEARM_H
11 
12 #include <map>
13 
14 #include "lldb/Core/EmulateInstruction.h"
15 #include "lldb/Core/Opcode.h"
16 
17 class EmulationStateARM {
18 public:
19   EmulationStateARM();
20 
21   virtual ~EmulationStateARM();
22 
23   bool StorePseudoRegisterValue(uint32_t reg_num, uint64_t value);
24 
25   uint64_t ReadPseudoRegisterValue(uint32_t reg_num, bool &success);
26 
27   bool StoreToPseudoAddress(lldb::addr_t p_address, uint32_t value);
28 
29   uint32_t ReadFromPseudoAddress(lldb::addr_t p_address, bool &success);
30 
31   void ClearPseudoRegisters();
32 
33   void ClearPseudoMemory();
34 
35   bool LoadPseudoRegistersFromFrame(lldb_private::StackFrame &frame);
36 
37   bool LoadStateFromDictionary(lldb_private::OptionValueDictionary *test_data);
38 
39   bool CompareState(EmulationStateARM &other_state);
40 
41   static size_t
42   ReadPseudoMemory(lldb_private::EmulateInstruction *instruction, void *baton,
43                    const lldb_private::EmulateInstruction::Context &context,
44                    lldb::addr_t addr, void *dst, size_t length);
45 
46   static size_t
47   WritePseudoMemory(lldb_private::EmulateInstruction *instruction, void *baton,
48                     const lldb_private::EmulateInstruction::Context &context,
49                     lldb::addr_t addr, const void *dst, size_t length);
50 
51   static bool ReadPseudoRegister(lldb_private::EmulateInstruction *instruction,
52                                  void *baton,
53                                  const lldb_private::RegisterInfo *reg_info,
54                                  lldb_private::RegisterValue &reg_value);
55 
56   static bool
57   WritePseudoRegister(lldb_private::EmulateInstruction *instruction,
58                       void *baton,
59                       const lldb_private::EmulateInstruction::Context &context,
60                       const lldb_private::RegisterInfo *reg_info,
61                       const lldb_private::RegisterValue &reg_value);
62 
63 private:
64   uint32_t m_gpr[17] = {0};
65   struct _sd_regs {
66     uint32_t s_regs[32]; // sregs 0 - 31 & dregs 0 - 15
67 
68     uint64_t d_regs[16]; // dregs 16-31
69 
70   } m_vfp_regs;
71 
72   std::map<lldb::addr_t, uint32_t> m_memory; // Eventually will want to change
73                                              // uint32_t to a data buffer heap
74                                              // type.
75 
76   EmulationStateARM(const EmulationStateARM &) = delete;
77   const EmulationStateARM &operator=(const EmulationStateARM &) = delete;
78 };
79 
80 #endif // LLDB_SOURCE_PLUGINS_INSTRUCTION_ARM_EMULATIONSTATEARM_H
81