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//===-- RegisterContextThreadMemory.cpp -------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/lldb-private.h"
#include "lldb/Core/Error.h"
#include "lldb/Target/OperatingSystem.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Thread.h"
#include "RegisterContextThreadMemory.h"
using namespace lldb;
using namespace lldb_private;
RegisterContextThreadMemory::RegisterContextThreadMemory (Thread &thread,
lldb::addr_t register_data_addr) :
RegisterContext (thread, 0),
m_thread_wp (thread.shared_from_this()),
m_reg_ctx_sp (),
m_register_data_addr (register_data_addr),
m_stop_id(0)
{
}
RegisterContextThreadMemory::~RegisterContextThreadMemory()
{
}
void
RegisterContextThreadMemory::UpdateRegisterContext ()
{
ThreadSP thread_sp (m_thread_wp.lock());
if (thread_sp)
{
ProcessSP process_sp (thread_sp->GetProcess());
if (process_sp)
{
const uint32_t stop_id = process_sp->GetModID().GetStopID();
if (m_stop_id != stop_id)
{
m_stop_id = stop_id;
m_reg_ctx_sp.reset();
}
if (!m_reg_ctx_sp)
{
ThreadSP backing_thread_sp (thread_sp->GetBackingThread());
if (backing_thread_sp)
{
m_reg_ctx_sp = backing_thread_sp->GetRegisterContext();
}
else
{
OperatingSystem *os = process_sp->GetOperatingSystem ();
if (os->IsOperatingSystemPluginThread (thread_sp))
m_reg_ctx_sp = os->CreateRegisterContextForThread (thread_sp.get(), LLDB_INVALID_ADDRESS);
}
}
}
else
{
m_reg_ctx_sp.reset();
}
}
else
{
m_reg_ctx_sp.reset();
}
}
//------------------------------------------------------------------
// Subclasses must override these functions
//------------------------------------------------------------------
void
RegisterContextThreadMemory::InvalidateAllRegisters ()
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
m_reg_ctx_sp->InvalidateAllRegisters();
}
size_t
RegisterContextThreadMemory::GetRegisterCount ()
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->GetRegisterCount();
return 0;
}
const RegisterInfo *
RegisterContextThreadMemory::GetRegisterInfoAtIndex (size_t reg)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->GetRegisterInfoAtIndex(reg);
return NULL;
}
size_t
RegisterContextThreadMemory::GetRegisterSetCount ()
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->GetRegisterSetCount();
return 0;
}
const RegisterSet *
RegisterContextThreadMemory::GetRegisterSet (size_t reg_set)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->GetRegisterSet(reg_set);
return NULL;
}
bool
RegisterContextThreadMemory::ReadRegister (const RegisterInfo *reg_info, RegisterValue ®_value)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->ReadRegister(reg_info, reg_value);
return false;
}
bool
RegisterContextThreadMemory::WriteRegister (const RegisterInfo *reg_info, const RegisterValue ®_value)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->WriteRegister (reg_info, reg_value);
return false;
}
bool
RegisterContextThreadMemory::ReadAllRegisterValues (lldb::DataBufferSP &data_sp)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->ReadAllRegisterValues(data_sp);
return false;
}
bool
RegisterContextThreadMemory::WriteAllRegisterValues (const lldb::DataBufferSP &data_sp)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->WriteAllRegisterValues (data_sp);
return false;
}
bool
RegisterContextThreadMemory::CopyFromRegisterContext (lldb::RegisterContextSP reg_ctx_sp)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->CopyFromRegisterContext(reg_ctx_sp);
return false;
}
uint32_t
RegisterContextThreadMemory::ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->ConvertRegisterKindToRegisterNumber(kind, num);
return false;
}
uint32_t
RegisterContextThreadMemory::NumSupportedHardwareBreakpoints ()
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->NumSupportedHardwareBreakpoints();
return false;
}
uint32_t
RegisterContextThreadMemory::SetHardwareBreakpoint (lldb::addr_t addr, size_t size)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->SetHardwareBreakpoint(addr, size);
return 0;
}
bool
RegisterContextThreadMemory::ClearHardwareBreakpoint (uint32_t hw_idx)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->ClearHardwareBreakpoint (hw_idx);
return false;
}
uint32_t
RegisterContextThreadMemory::NumSupportedHardwareWatchpoints ()
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->NumSupportedHardwareWatchpoints();
return 0;
}
uint32_t
RegisterContextThreadMemory::SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->SetHardwareWatchpoint(addr, size, read, write);
return 0;
}
bool
RegisterContextThreadMemory::ClearHardwareWatchpoint (uint32_t hw_index)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->ClearHardwareWatchpoint(hw_index);
return false;
}
bool
RegisterContextThreadMemory::HardwareSingleStep (bool enable)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->HardwareSingleStep(enable);
return false;
}
Error
RegisterContextThreadMemory::ReadRegisterValueFromMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr, uint32_t src_len, RegisterValue ®_value)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->ReadRegisterValueFromMemory (reg_info, src_addr, src_len, reg_value);
Error error;
error.SetErrorString("invalid register context");
return error;
}
Error
RegisterContextThreadMemory::WriteRegisterValueToMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr, uint32_t dst_len, const RegisterValue ®_value)
{
UpdateRegisterContext ();
if (m_reg_ctx_sp)
return m_reg_ctx_sp->WriteRegisterValueToMemory (reg_info, dst_addr, dst_len, reg_value);
Error error;
error.SetErrorString("invalid register context");
return error;
}
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