1 //===-- NativeRegisterContextNetBSD_x86_64.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 #if defined(__i386__) || defined(__x86_64__)
10 
11 #ifndef lldb_NativeRegisterContextNetBSD_x86_64_h
12 #define lldb_NativeRegisterContextNetBSD_x86_64_h
13 
14 // clang-format off
15 #include <sys/param.h>
16 #include <sys/types.h>
17 #include <sys/ptrace.h>
18 #include <machine/reg.h>
19 // clang-format on
20 
21 #include <array>
22 #include <optional>
23 
24 #include "Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h"
25 #include "Plugins/Process/Utility/RegisterContext_x86.h"
26 #include "Plugins/Process/Utility/NativeRegisterContextDBReg_x86.h"
27 #include "Plugins/Process/Utility/lldb-x86-register-enums.h"
28 
29 namespace lldb_private {
30 namespace process_netbsd {
31 
32 class NativeProcessNetBSD;
33 
34 class NativeRegisterContextNetBSD_x86_64
35     : public NativeRegisterContextNetBSD,
36       public NativeRegisterContextDBReg_x86 {
37 public:
38   NativeRegisterContextNetBSD_x86_64(const ArchSpec &target_arch,
39                                      NativeThreadProtocol &native_thread);
40   uint32_t GetRegisterSetCount() const override;
41 
42   const RegisterSet *GetRegisterSet(uint32_t set_index) const override;
43 
44   Status ReadRegister(const RegisterInfo *reg_info,
45                       RegisterValue &reg_value) override;
46 
47   Status WriteRegister(const RegisterInfo *reg_info,
48                        const RegisterValue &reg_value) override;
49 
50   Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;
51 
52   Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
53 
54   llvm::Error
55   CopyHardwareWatchpointsFrom(NativeRegisterContextNetBSD &source) override;
56 
57 private:
58   // Private member types.
59   enum RegSetKind {
60     GPRegSet,
61     FPRegSet,
62     DBRegSet,
63     MaxRegularRegSet = DBRegSet,
64     YMMRegSet,
65     MPXRegSet,
66     MaxRegSet = MPXRegSet,
67   };
68 
69   // Private member variables.
70   std::array<uint8_t, sizeof(struct reg)> m_gpr;
71   std::array<uint8_t, sizeof(struct xstate)> m_xstate;
72   std::array<uint8_t, sizeof(struct dbreg)> m_dbr;
73   std::array<size_t, MaxRegularRegSet + 1> m_regset_offsets;
74 
75   std::optional<RegSetKind> GetSetForNativeRegNum(uint32_t reg_num) const;
76 
77   Status ReadRegisterSet(RegSetKind set);
78   Status WriteRegisterSet(RegSetKind set);
79 
80   uint8_t *GetOffsetRegSetData(RegSetKind set, size_t reg_offset);
81 
82   struct YMMSplitPtr {
83     void *xmm;
84     void *ymm_hi;
85   };
86   std::optional<YMMSplitPtr> GetYMMSplitReg(uint32_t reg);
87 };
88 
89 } // namespace process_netbsd
90 } // namespace lldb_private
91 
92 #endif // #ifndef lldb_NativeRegisterContextNetBSD_x86_64_h
93 
94 #endif // defined(__x86_64__)
95