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//===-- ThreadPlanStepOverRange.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/Target/ThreadPlanStepOverRange.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-private-log.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Stream.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/Thread.h"
#include "lldb/Target/ThreadPlanStepOut.h"
#include "lldb/Target/ThreadPlanStepThrough.h"
using namespace lldb_private;
//----------------------------------------------------------------------
// ThreadPlanStepOverRange: Step through a stack range, either stepping over or into
// based on the value of \a type.
//----------------------------------------------------------------------
ThreadPlanStepOverRange::ThreadPlanStepOverRange
(
Thread &thread,
const AddressRange &range,
const SymbolContext &addr_context,
lldb::RunMode stop_others,
bool okay_to_discard
) :
ThreadPlanStepRange ("Step range stepping over", thread, range, addr_context, stop_others)
{
SetOkayToDiscard (okay_to_discard);
}
ThreadPlanStepOverRange::~ThreadPlanStepOverRange ()
{
}
void
ThreadPlanStepOverRange::GetDescription (Stream *s, lldb::DescriptionLevel level)
{
if (level == lldb::eDescriptionLevelBrief)
s->Printf("step over");
else
{
s->Printf ("stepping through range (stepping over functions): ");
m_address_range.Dump (s, &m_thread.GetProcess(), Address::DumpStyleLoadAddress);
}
}
bool
ThreadPlanStepOverRange::ShouldStop (Event *event_ptr)
{
Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP);
if (log)
{
StreamString s;
s.Address (m_thread.GetRegisterContext()->GetPC(), m_thread.GetProcess().GetAddressByteSize());
log->Printf("ThreadPlanStepOverRange reached %s.", s.GetData());
}
// If we're still in the range, keep going.
if (InRange())
return false;
// If we're out of the range but in the same frame or in our caller's frame
// then we should stop.
// When stepping out we only step if we are forcing running one thread.
bool stop_others;
if (m_stop_others == lldb::eOnlyThisThread)
stop_others = true;
else
stop_others = false;
ThreadPlan* new_plan = NULL;
if (FrameIsOlder())
return true;
else if (FrameIsYounger())
{
new_plan = m_thread.QueueThreadPlanForStepOut (false, NULL, true, stop_others, lldb::eVoteNo, lldb::eVoteNoOpinion);
}
else if (!InSymbol())
{
// This one is a little tricky. Sometimes we may be in a stub or something similar,
// in which case we need to get out of there. But if we are in a stub then it's
// likely going to be hard to get out from here. It is probably easiest to step into the
// stub, and then it will be straight-forward to step out.
new_plan = m_thread.QueueThreadPlanForStepThrough (false, stop_others);
}
if (new_plan == NULL)
m_no_more_plans = true;
else
m_no_more_plans = false;
if (new_plan == NULL)
{
// For efficiencies sake, we know we're done here so we don't have to do this
// calculation again in MischiefManaged.
SetPlanComplete();
return true;
}
else
return false;
}
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