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