1 //===-- RegisterContextPOSIXCore_arm64.cpp ----------------------*- 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 #include "RegisterContextPOSIXCore_arm64.h"
10
11 #include "Plugins/Process/elf-core/RegisterUtilities.h"
12 #include "lldb/Target/Thread.h"
13 #include "lldb/Utility/RegisterValue.h"
14
15 #include <memory>
16
17 using namespace lldb_private;
18
RegisterContextCorePOSIX_arm64(Thread & thread,RegisterInfoInterface * register_info,const DataExtractor & gpregset,llvm::ArrayRef<CoreNote> notes)19 RegisterContextCorePOSIX_arm64::RegisterContextCorePOSIX_arm64(
20 Thread &thread, RegisterInfoInterface *register_info,
21 const DataExtractor &gpregset, llvm::ArrayRef<CoreNote> notes)
22 : RegisterContextPOSIX_arm64(thread, 0, register_info) {
23 m_gpr_buffer = std::make_shared<DataBufferHeap>(gpregset.GetDataStart(),
24 gpregset.GetByteSize());
25 m_gpr.SetData(m_gpr_buffer);
26 m_gpr.SetByteOrder(gpregset.GetByteOrder());
27 }
28
~RegisterContextCorePOSIX_arm64()29 RegisterContextCorePOSIX_arm64::~RegisterContextCorePOSIX_arm64() {}
30
ReadGPR()31 bool RegisterContextCorePOSIX_arm64::ReadGPR() { return true; }
32
ReadFPR()33 bool RegisterContextCorePOSIX_arm64::ReadFPR() { return false; }
34
WriteGPR()35 bool RegisterContextCorePOSIX_arm64::WriteGPR() {
36 assert(0);
37 return false;
38 }
39
WriteFPR()40 bool RegisterContextCorePOSIX_arm64::WriteFPR() {
41 assert(0);
42 return false;
43 }
44
ReadRegister(const RegisterInfo * reg_info,RegisterValue & value)45 bool RegisterContextCorePOSIX_arm64::ReadRegister(const RegisterInfo *reg_info,
46 RegisterValue &value) {
47 lldb::offset_t offset = reg_info->byte_offset;
48 uint64_t v = m_gpr.GetMaxU64(&offset, reg_info->byte_size);
49 if (offset == reg_info->byte_offset + reg_info->byte_size) {
50 value = v;
51 return true;
52 }
53 return false;
54 }
55
ReadAllRegisterValues(lldb::DataBufferSP & data_sp)56 bool RegisterContextCorePOSIX_arm64::ReadAllRegisterValues(
57 lldb::DataBufferSP &data_sp) {
58 return false;
59 }
60
WriteRegister(const RegisterInfo * reg_info,const RegisterValue & value)61 bool RegisterContextCorePOSIX_arm64::WriteRegister(const RegisterInfo *reg_info,
62 const RegisterValue &value) {
63 return false;
64 }
65
WriteAllRegisterValues(const lldb::DataBufferSP & data_sp)66 bool RegisterContextCorePOSIX_arm64::WriteAllRegisterValues(
67 const lldb::DataBufferSP &data_sp) {
68 return false;
69 }
70
HardwareSingleStep(bool enable)71 bool RegisterContextCorePOSIX_arm64::HardwareSingleStep(bool enable) {
72 return false;
73 }
74