1 //===-- NativeRegisterContextNetBSD.cpp -------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "NativeRegisterContextNetBSD.h"
11 
12 #include "lldb/Host/common/NativeProcessProtocol.h"
13 
14 using namespace lldb_private;
15 using namespace lldb_private::process_netbsd;
16 
17 // clang-format off
18 #include <sys/types.h>
19 #include <sys/ptrace.h>
20 // clang-format on
21 
22 NativeRegisterContextNetBSD::NativeRegisterContextNetBSD(
23     NativeThreadProtocol &native_thread, uint32_t concrete_frame_idx,
24     RegisterInfoInterface *reg_info_interface_p)
25     : NativeRegisterContextRegisterInfo(native_thread, concrete_frame_idx,
26                                         reg_info_interface_p) {}
27 
28 Error NativeRegisterContextNetBSD::ReadGPR() {
29   void *buf = GetGPRBuffer();
30   if (!buf)
31     return Error("GPR buffer is NULL");
32 
33   return DoReadGPR(buf);
34 }
35 
36 Error NativeRegisterContextNetBSD::WriteGPR() {
37   void *buf = GetGPRBuffer();
38   if (!buf)
39     return Error("GPR buffer is NULL");
40 
41   return DoWriteGPR(buf);
42 }
43 
44 Error NativeRegisterContextNetBSD::ReadFPR() {
45   void *buf = GetFPRBuffer();
46   if (!buf)
47     return Error("FPR buffer is NULL");
48 
49   return DoReadFPR(buf);
50 }
51 
52 Error NativeRegisterContextNetBSD::WriteFPR() {
53   void *buf = GetFPRBuffer();
54   if (!buf)
55     return Error("FPR buffer is NULL");
56 
57   return DoWriteFPR(buf);
58 }
59 
60 Error NativeRegisterContextNetBSD::ReadDBR() {
61   void *buf = GetDBRBuffer();
62   if (!buf)
63     return Error("DBR buffer is NULL");
64 
65   return DoReadDBR(buf);
66 }
67 
68 Error NativeRegisterContextNetBSD::WriteDBR() {
69   void *buf = GetDBRBuffer();
70   if (!buf)
71     return Error("DBR buffer is NULL");
72 
73   return DoWriteDBR(buf);
74 }
75 
76 Error NativeRegisterContextNetBSD::DoReadGPR(void *buf) {
77   return NativeProcessNetBSD::PtraceWrapper(PT_GETREGS, GetProcessPid(), buf,
78                                             m_thread.GetID());
79 }
80 
81 Error NativeRegisterContextNetBSD::DoWriteGPR(void *buf) {
82   return NativeProcessNetBSD::PtraceWrapper(PT_SETREGS, GetProcessPid(), buf,
83                                             m_thread.GetID());
84 }
85 
86 Error NativeRegisterContextNetBSD::DoReadFPR(void *buf) {
87   return NativeProcessNetBSD::PtraceWrapper(PT_GETFPREGS, GetProcessPid(), buf,
88                                             m_thread.GetID());
89 }
90 
91 Error NativeRegisterContextNetBSD::DoWriteFPR(void *buf) {
92   return NativeProcessNetBSD::PtraceWrapper(PT_SETFPREGS, GetProcessPid(), buf,
93                                             m_thread.GetID());
94 }
95 
96 Error NativeRegisterContextNetBSD::DoReadDBR(void *buf) {
97   return NativeProcessNetBSD::PtraceWrapper(PT_GETDBREGS, GetProcessPid(), buf,
98                                             m_thread.GetID());
99 }
100 
101 Error NativeRegisterContextNetBSD::DoWriteDBR(void *buf) {
102   return NativeProcessNetBSD::PtraceWrapper(PT_SETDBREGS, GetProcessPid(), buf,
103                                             m_thread.GetID());
104 }
105 
106 NativeProcessNetBSD &NativeRegisterContextNetBSD::GetProcess() {
107   auto process_sp =
108       std::static_pointer_cast<NativeProcessNetBSD>(m_thread.GetProcess());
109   assert(process_sp);
110   return *process_sp;
111 }
112 
113 ::pid_t NativeRegisterContextNetBSD::GetProcessPid() {
114   NativeProcessNetBSD &process = GetProcess();
115   lldb::pid_t pid = process.GetID();
116 
117   return pid;
118 }
119