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//===-- ThreadMachCore.cpp --------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ThreadMachCore.h"
#include "lldb/Utility/SafeMachO.h"
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/DataExtractor.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Core/State.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Unwind.h"
#include "lldb/Breakpoint/Watchpoint.h"
#include "ProcessMachCore.h"
//#include "RegisterContextKDP_arm.h"
//#include "RegisterContextKDP_i386.h"
//#include "RegisterContextKDP_x86_64.h"
using namespace lldb;
using namespace lldb_private;
//----------------------------------------------------------------------
// Thread Registers
//----------------------------------------------------------------------
ThreadMachCore::ThreadMachCore (Process &process, lldb::tid_t tid) :
Thread(process, tid),
m_thread_name (),
m_dispatch_queue_name (),
m_thread_dispatch_qaddr (LLDB_INVALID_ADDRESS),
m_thread_reg_ctx_sp ()
{
}
ThreadMachCore::~ThreadMachCore ()
{
DestroyThread();
}
const char *
ThreadMachCore::GetName ()
{
if (m_thread_name.empty())
return NULL;
return m_thread_name.c_str();
}
void
ThreadMachCore::RefreshStateAfterStop()
{
// Invalidate all registers in our register context. We don't set "force" to
// true because the stop reply packet might have had some register values
// that were expedited and these will already be copied into the register
// context by the time this function gets called. The KDPRegisterContext
// class has been made smart enough to detect when it needs to invalidate
// which registers are valid by putting hooks in the register read and
// register supply functions where they check the process stop ID and do
// the right thing.
const bool force = false;
GetRegisterContext()->InvalidateIfNeeded (force);
}
bool
ThreadMachCore::ThreadIDIsValid (lldb::tid_t thread)
{
return thread != 0;
}
lldb::RegisterContextSP
ThreadMachCore::GetRegisterContext ()
{
if (m_reg_context_sp.get() == NULL)
m_reg_context_sp = CreateRegisterContextForFrame (NULL);
return m_reg_context_sp;
}
lldb::RegisterContextSP
ThreadMachCore::CreateRegisterContextForFrame (StackFrame *frame)
{
lldb::RegisterContextSP reg_ctx_sp;
uint32_t concrete_frame_idx = 0;
if (frame)
concrete_frame_idx = frame->GetConcreteFrameIndex ();
if (concrete_frame_idx == 0)
{
if (!m_thread_reg_ctx_sp)
{
ProcessSP process_sp (GetProcess());
ObjectFile *core_objfile = static_cast<ProcessMachCore *>(process_sp.get())->GetCoreObjectFile ();
if (core_objfile)
m_thread_reg_ctx_sp = core_objfile->GetThreadContextAtIndex (GetID(), *this);
}
reg_ctx_sp = m_thread_reg_ctx_sp;
}
else
{
Unwind *unwinder = GetUnwinder ();
if (unwinder)
reg_ctx_sp = unwinder->CreateRegisterContextForFrame (frame);
}
return reg_ctx_sp;
}
bool
ThreadMachCore::CalculateStopInfo ()
{
ProcessSP process_sp (GetProcess());
if (process_sp)
{
SetStopInfo(StopInfo::CreateStopReasonWithSignal (*this, SIGSTOP));
return true;
}
return false;
}
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