1//===-- RegisterContextPOSIXCore_s390x.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_s390x.h"
10
11#include "lldb/Target/Thread.h"
12#include "lldb/Utility/DataBufferHeap.h"
13#include "lldb/Utility/RegisterValue.h"
14
15#include <memory>
16
17using namespace lldb_private;
18
19RegisterContextCorePOSIX_s390x::RegisterContextCorePOSIX_s390x(
20 Thread &thread, RegisterInfoInterface *register_info,
21 const DataExtractor &gpregset, llvm::ArrayRef<CoreNote> notes)
22 : RegisterContextPOSIX_s390x(thread, 0, register_info) {
23 m_gpr_buffer = std::make_shared<DataBufferHeap>(args: gpregset.GetDataStart(),
24 args: gpregset.GetByteSize());
25 m_gpr.SetData(data_sp: m_gpr_buffer);
26 m_gpr.SetByteOrder(gpregset.GetByteOrder());
27
28 DataExtractor fpregset = getRegset(
29 Notes: notes, Triple: register_info->GetTargetArchitecture().GetTriple(), RegsetDescs: FPR_Desc);
30 m_fpr_buffer = std::make_shared<DataBufferHeap>(args: fpregset.GetDataStart(),
31 args: fpregset.GetByteSize());
32 m_fpr.SetData(data_sp: m_fpr_buffer);
33 m_fpr.SetByteOrder(fpregset.GetByteOrder());
34}
35
36RegisterContextCorePOSIX_s390x::~RegisterContextCorePOSIX_s390x() = default;
37
38bool RegisterContextCorePOSIX_s390x::ReadGPR() { return true; }
39
40bool RegisterContextCorePOSIX_s390x::ReadFPR() { return true; }
41
42bool RegisterContextCorePOSIX_s390x::WriteGPR() {
43 assert(0);
44 return false;
45}
46
47bool RegisterContextCorePOSIX_s390x::WriteFPR() {
48 assert(0);
49 return false;
50}
51
52bool RegisterContextCorePOSIX_s390x::ReadRegister(const RegisterInfo *reg_info,
53 RegisterValue &value) {
54 const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB];
55 if (reg == LLDB_INVALID_REGNUM)
56 return false;
57
58 if (IsGPR(reg)) {
59 lldb::offset_t offset = reg_info->byte_offset;
60 uint64_t v = m_gpr.GetMaxU64(offset_ptr: &offset, byte_size: reg_info->byte_size);
61 if (offset == reg_info->byte_offset + reg_info->byte_size) {
62 value.SetUInt(uint: v, byte_size: reg_info->byte_size);
63 return true;
64 }
65 }
66
67 if (IsFPR(reg)) {
68 lldb::offset_t offset = reg_info->byte_offset;
69 uint64_t v = m_fpr.GetMaxU64(offset_ptr: &offset, byte_size: reg_info->byte_size);
70 if (offset == reg_info->byte_offset + reg_info->byte_size) {
71 value.SetUInt(uint: v, byte_size: reg_info->byte_size);
72 return true;
73 }
74 }
75
76 return false;
77}
78
79bool RegisterContextCorePOSIX_s390x::ReadAllRegisterValues(
80 lldb::WritableDataBufferSP &data_sp) {
81 return false;
82}
83
84bool RegisterContextCorePOSIX_s390x::WriteRegister(const RegisterInfo *reg_info,
85 const RegisterValue &value) {
86 return false;
87}
88
89bool RegisterContextCorePOSIX_s390x::WriteAllRegisterValues(
90 const lldb::DataBufferSP &data_sp) {
91 return false;
92}
93
94bool RegisterContextCorePOSIX_s390x::HardwareSingleStep(bool enable) {
95 return false;
96}
97

source code of lldb/source/Plugins/Process/elf-core/RegisterContextPOSIXCore_s390x.cpp