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//===-- RegisterContextPOSIXCore_x86_64.cpp ---------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "RegisterContextPOSIXCore_x86_64.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/RegisterValue.h"
using namespace lldb_private;
RegisterContextCorePOSIX_x86_64::RegisterContextCorePOSIX_x86_64(
Thread &thread, RegisterInfoInterface *register_info,
const DataExtractor &gpregset, llvm::ArrayRef<CoreNote> notes)
: RegisterContextPOSIX_x86(thread, 0, register_info) {
size_t size, len;
size = GetGPRSize();
m_gpregset.reset(new uint8_t[size]);
len =
gpregset.ExtractBytes(0, size, lldb::eByteOrderLittle, m_gpregset.get());
if (len != size)
m_gpregset.reset();
DataExtractor fpregset = getRegset(
notes, register_info->GetTargetArchitecture().GetTriple(), FPR_Desc);
size = sizeof(FXSAVE);
m_fpregset.reset(new uint8_t[size]);
len =
fpregset.ExtractBytes(0, size, lldb::eByteOrderLittle, m_fpregset.get());
if (len != size)
m_fpregset.reset();
}
bool RegisterContextCorePOSIX_x86_64::ReadGPR() {
return m_gpregset != nullptr;
}
bool RegisterContextCorePOSIX_x86_64::ReadFPR() {
return m_fpregset != nullptr;
}
bool RegisterContextCorePOSIX_x86_64::WriteGPR() {
assert(0);
return false;
}
bool RegisterContextCorePOSIX_x86_64::WriteFPR() {
assert(0);
return false;
}
bool RegisterContextCorePOSIX_x86_64::ReadRegister(const RegisterInfo *reg_info,
RegisterValue &value) {
const uint8_t *src;
size_t offset;
const size_t fxsave_offset = reg_info->byte_offset - GetFXSAVEOffset();
// make the offset relative to the beginning of the FXSAVE structure because
// this is the data that we have (not the entire UserArea)
if (m_gpregset && reg_info->byte_offset < GetGPRSize()) {
src = m_gpregset.get();
offset = reg_info->byte_offset;
} else if (m_fpregset && fxsave_offset < sizeof(FXSAVE)) {
src = m_fpregset.get();
offset = fxsave_offset;
} else {
return false;
}
Status error;
value.SetFromMemoryData(reg_info, src + offset, reg_info->byte_size,
lldb::eByteOrderLittle, error);
return error.Success();
}
bool RegisterContextCorePOSIX_x86_64::ReadAllRegisterValues(
lldb::DataBufferSP &data_sp) {
return false;
}
bool RegisterContextCorePOSIX_x86_64::WriteRegister(
const RegisterInfo *reg_info, const RegisterValue &value) {
return false;
}
bool RegisterContextCorePOSIX_x86_64::WriteAllRegisterValues(
const lldb::DataBufferSP &data_sp) {
return false;
}
bool RegisterContextCorePOSIX_x86_64::HardwareSingleStep(bool enable) {
return false;
}
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