| 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 | |
| 16 | using namespace lldb_private; |
| 17 | |
| 18 | RegisterContextCorePOSIX_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>(args: gpregset.GetDataStart(), |
| 23 | args: gpregset.GetByteSize()); |
| 24 | m_gpr.SetData(data_sp: m_gpr_buffer); |
| 25 | m_gpr.SetByteOrder(gpregset.GetByteOrder()); |
| 26 | } |
| 27 | |
| 28 | RegisterContextCorePOSIX_arm::~RegisterContextCorePOSIX_arm() = default; |
| 29 | |
| 30 | bool RegisterContextCorePOSIX_arm::ReadGPR() { return true; } |
| 31 | |
| 32 | bool RegisterContextCorePOSIX_arm::ReadFPR() { return false; } |
| 33 | |
| 34 | bool RegisterContextCorePOSIX_arm::WriteGPR() { |
| 35 | assert(0); |
| 36 | return false; |
| 37 | } |
| 38 | |
| 39 | bool RegisterContextCorePOSIX_arm::WriteFPR() { |
| 40 | assert(0); |
| 41 | return false; |
| 42 | } |
| 43 | |
| 44 | bool 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_ptr: &offset, byte_size: 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 | |
| 57 | bool RegisterContextCorePOSIX_arm::ReadAllRegisterValues( |
| 58 | lldb::WritableDataBufferSP &data_sp) { |
| 59 | return false; |
| 60 | } |
| 61 | |
| 62 | bool RegisterContextCorePOSIX_arm::WriteRegister(const RegisterInfo *reg_info, |
| 63 | const RegisterValue &value) { |
| 64 | return false; |
| 65 | } |
| 66 | |
| 67 | bool RegisterContextCorePOSIX_arm::WriteAllRegisterValues( |
| 68 | const lldb::DataBufferSP &data_sp) { |
| 69 | return false; |
| 70 | } |
| 71 | |
| 72 | bool RegisterContextCorePOSIX_arm::HardwareSingleStep(bool enable) { |
| 73 | return false; |
| 74 | } |
| 75 |