1//===-- RegisterContextPOSIXCore_arm.cpp ----------------------------------===//
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_arm.h"
10
11#include "lldb/Target/Thread.h"
12#include "lldb/Utility/RegisterValue.h"
13
14#include <memory>
15
16using namespace lldb_private;
17
18RegisterContextCorePOSIX_arm::RegisterContextCorePOSIX_arm(
19    Thread &thread, std::unique_ptr<RegisterInfoPOSIX_arm> register_info,
20    const DataExtractor &gpregset, llvm::ArrayRef<CoreNote> notes)
21    : RegisterContextPOSIX_arm(thread, std::move(register_info)) {
22  m_gpr_buffer = std::make_shared<DataBufferHeap>(gpregset.GetDataStart(),
23                                                  gpregset.GetByteSize());
24  m_gpr.SetData(m_gpr_buffer);
25  m_gpr.SetByteOrder(gpregset.GetByteOrder());
26}
27
28RegisterContextCorePOSIX_arm::~RegisterContextCorePOSIX_arm() = default;
29
30bool RegisterContextCorePOSIX_arm::ReadGPR() { return true; }
31
32bool RegisterContextCorePOSIX_arm::ReadFPR() { return false; }
33
34bool RegisterContextCorePOSIX_arm::WriteGPR() {
35  assert(0);
36  return false;
37}
38
39bool RegisterContextCorePOSIX_arm::WriteFPR() {
40  assert(0);
41  return false;
42}
43
44bool RegisterContextCorePOSIX_arm::ReadRegister(const RegisterInfo *reg_info,
45                                                RegisterValue &value) {
46  lldb::offset_t offset = reg_info->byte_offset;
47  if (offset + reg_info->byte_size <= GetGPRSize()) {
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  }
54  return false;
55}
56
57bool RegisterContextCorePOSIX_arm::ReadAllRegisterValues(
58    lldb::WritableDataBufferSP &data_sp) {
59  return false;
60}
61
62bool RegisterContextCorePOSIX_arm::WriteRegister(const RegisterInfo *reg_info,
63                                                 const RegisterValue &value) {
64  return false;
65}
66
67bool RegisterContextCorePOSIX_arm::WriteAllRegisterValues(
68    const lldb::DataBufferSP &data_sp) {
69  return false;
70}
71
72bool RegisterContextCorePOSIX_arm::HardwareSingleStep(bool enable) {
73  return false;
74}
75