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//===-- RegisterContextPOSIXCore_s390x.cpp --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "RegisterContextPOSIXCore_s390x.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/RegisterValue.h"
#include <memory>
using namespace lldb_private;
RegisterContextCorePOSIX_s390x::RegisterContextCorePOSIX_s390x(
Thread &thread, RegisterInfoInterface *register_info,
const DataExtractor &gpregset, llvm::ArrayRef<CoreNote> notes)
: RegisterContextPOSIX_s390x(thread, 0, register_info) {
m_gpr_buffer = std::make_shared<DataBufferHeap>(gpregset.GetDataStart(),
gpregset.GetByteSize());
m_gpr.SetData(m_gpr_buffer);
m_gpr.SetByteOrder(gpregset.GetByteOrder());
DataExtractor fpregset = getRegset(
notes, register_info->GetTargetArchitecture().GetTriple(), FPR_Desc);
m_fpr_buffer = std::make_shared<DataBufferHeap>(fpregset.GetDataStart(),
fpregset.GetByteSize());
m_fpr.SetData(m_fpr_buffer);
m_fpr.SetByteOrder(fpregset.GetByteOrder());
}
RegisterContextCorePOSIX_s390x::~RegisterContextCorePOSIX_s390x() = default;
bool RegisterContextCorePOSIX_s390x::ReadGPR() { return true; }
bool RegisterContextCorePOSIX_s390x::ReadFPR() { return true; }
bool RegisterContextCorePOSIX_s390x::WriteGPR() {
assert(0);
return false;
}
bool RegisterContextCorePOSIX_s390x::WriteFPR() {
assert(0);
return false;
}
bool RegisterContextCorePOSIX_s390x::ReadRegister(const RegisterInfo *reg_info,
RegisterValue &value) {
const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB];
if (reg == LLDB_INVALID_REGNUM)
return false;
if (IsGPR(reg)) {
lldb::offset_t offset = reg_info->byte_offset;
uint64_t v = m_gpr.GetMaxU64(&offset, reg_info->byte_size);
if (offset == reg_info->byte_offset + reg_info->byte_size) {
value.SetUInt(v, reg_info->byte_size);
return true;
}
}
if (IsFPR(reg)) {
lldb::offset_t offset = reg_info->byte_offset;
uint64_t v = m_fpr.GetMaxU64(&offset, reg_info->byte_size);
if (offset == reg_info->byte_offset + reg_info->byte_size) {
value.SetUInt(v, reg_info->byte_size);
return true;
}
}
return false;
}
bool RegisterContextCorePOSIX_s390x::ReadAllRegisterValues(
lldb::WritableDataBufferSP &data_sp) {
return false;
}
bool RegisterContextCorePOSIX_s390x::WriteRegister(const RegisterInfo *reg_info,
const RegisterValue &value) {
return false;
}
bool RegisterContextCorePOSIX_s390x::WriteAllRegisterValues(
const lldb::DataBufferSP &data_sp) {
return false;
}
bool RegisterContextCorePOSIX_s390x::HardwareSingleStep(bool enable) {
return false;
}
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