1 | //===-- NativeRegisterContextFreeBSD_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_NativeRegisterContextFreeBSD_x86_64_h |
12 | #define lldb_NativeRegisterContextFreeBSD_x86_64_h |
13 | |
14 | // clang-format off |
15 | #include <sys/param.h> |
16 | #include <sys/ptrace.h> |
17 | #include <sys/types.h> |
18 | #include <machine/reg.h> |
19 | // clang-format on |
20 | |
21 | #include <array> |
22 | #include <optional> |
23 | |
24 | #include "Plugins/Process/FreeBSD/NativeRegisterContextFreeBSD.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 | #define LLDB_INVALID_XSAVE_OFFSET UINT32_MAX |
30 | |
31 | namespace lldb_private { |
32 | namespace process_freebsd { |
33 | |
34 | class NativeProcessFreeBSD; |
35 | |
36 | class NativeRegisterContextFreeBSD_x86_64 |
37 | : public NativeRegisterContextFreeBSD, |
38 | public NativeRegisterContextDBReg_x86 { |
39 | public: |
40 | NativeRegisterContextFreeBSD_x86_64(const ArchSpec &target_arch, |
41 | NativeThreadProtocol &native_thread); |
42 | uint32_t GetRegisterSetCount() const override; |
43 | |
44 | const RegisterSet *GetRegisterSet(uint32_t set_index) const override; |
45 | |
46 | Status ReadRegister(const RegisterInfo *reg_info, |
47 | RegisterValue ®_value) override; |
48 | |
49 | Status WriteRegister(const RegisterInfo *reg_info, |
50 | const RegisterValue ®_value) override; |
51 | |
52 | Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override; |
53 | |
54 | Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override; |
55 | |
56 | llvm::Error |
57 | CopyHardwareWatchpointsFrom(NativeRegisterContextFreeBSD &source) override; |
58 | |
59 | private: |
60 | // Private member types. |
61 | enum RegSetKind { |
62 | GPRegSet, |
63 | FPRegSet, |
64 | DBRegSet, |
65 | YMMRegSet, |
66 | MPXRegSet, |
67 | MaxRegSet = MPXRegSet, |
68 | }; |
69 | |
70 | // Private member variables. |
71 | std::array<uint8_t, sizeof(struct reg)> m_gpr; |
72 | std::array<uint8_t, 512> m_fpr; // FXSAVE |
73 | std::array<uint8_t, sizeof(struct dbreg)> m_dbr; |
74 | std::vector<uint8_t> m_xsave; |
75 | std::array<uint32_t, MaxRegSet + 1> m_xsave_offsets; |
76 | std::array<size_t, MaxRegSet + 1> m_regset_offsets; |
77 | |
78 | std::optional<RegSetKind> GetSetForNativeRegNum(uint32_t reg_num) const; |
79 | |
80 | Status ReadRegisterSet(RegSetKind set); |
81 | Status WriteRegisterSet(RegSetKind set); |
82 | |
83 | uint8_t *GetOffsetRegSetData(RegSetKind set, size_t reg_offset); |
84 | |
85 | struct YMMSplitPtr { |
86 | void *xmm; |
87 | void *ymm_hi; |
88 | }; |
89 | std::optional<YMMSplitPtr> GetYMMSplitReg(uint32_t reg); |
90 | }; |
91 | |
92 | } // namespace process_freebsd |
93 | } // namespace lldb_private |
94 | |
95 | #endif // #ifndef lldb_NativeRegisterContextFreeBSD_x86_64_h |
96 | |
97 | #endif // defined(__x86_64__) |
98 | |