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 | |
17 | using namespace lldb_private; |
18 | |
19 | 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 | |
36 | RegisterContextCorePOSIX_s390x::~RegisterContextCorePOSIX_s390x() = default; |
37 | |
38 | bool RegisterContextCorePOSIX_s390x::ReadGPR() { return true; } |
39 | |
40 | bool RegisterContextCorePOSIX_s390x::ReadFPR() { return true; } |
41 | |
42 | bool RegisterContextCorePOSIX_s390x::WriteGPR() { |
43 | assert(0); |
44 | return false; |
45 | } |
46 | |
47 | bool RegisterContextCorePOSIX_s390x::WriteFPR() { |
48 | assert(0); |
49 | return false; |
50 | } |
51 | |
52 | bool 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 | |
79 | bool RegisterContextCorePOSIX_s390x::ReadAllRegisterValues( |
80 | lldb::WritableDataBufferSP &data_sp) { |
81 | return false; |
82 | } |
83 | |
84 | bool RegisterContextCorePOSIX_s390x::WriteRegister(const RegisterInfo *reg_info, |
85 | const RegisterValue &value) { |
86 | return false; |
87 | } |
88 | |
89 | bool RegisterContextCorePOSIX_s390x::WriteAllRegisterValues( |
90 | const lldb::DataBufferSP &data_sp) { |
91 | return false; |
92 | } |
93 | |
94 | bool RegisterContextCorePOSIX_s390x::HardwareSingleStep(bool enable) { |
95 | return false; |
96 | } |
97 | |