| //===-- ThreadPlanStepInRange.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/ThreadPlanStepInRange.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; |
| using namespace lldb_private; |
| |
| uint32_t ThreadPlanStepInRange::s_default_flag_values = ThreadPlanShouldStopHere::eAvoidNoDebug; |
| |
| //---------------------------------------------------------------------- |
| // ThreadPlanStepInRange: Step through a stack range, either stepping over or into |
| // based on the value of \a type. |
| //---------------------------------------------------------------------- |
| |
| ThreadPlanStepInRange::ThreadPlanStepInRange |
| ( |
| Thread &thread, |
| const AddressRange &range, |
| const SymbolContext &addr_context, |
| lldb::RunMode stop_others |
| ) : |
| ThreadPlanStepRange ("Step Range stepping in", thread, range, addr_context, stop_others), |
| ThreadPlanShouldStopHere (this, ThreadPlanStepInRange::DefaultShouldStopHereCallback, NULL) |
| { |
| SetFlagsToDefault (); |
| } |
| |
| ThreadPlanStepInRange::~ThreadPlanStepInRange () |
| { |
| } |
| |
| void |
| ThreadPlanStepInRange::GetDescription (Stream *s, lldb::DescriptionLevel level) |
| { |
| if (level == lldb::eDescriptionLevelBrief) |
| s->Printf("step in"); |
| else |
| { |
| s->Printf ("Stepping through range (stepping into functions): "); |
| m_address_range.Dump (s, &m_thread.GetProcess(), Address::DumpStyleLoadAddress); |
| } |
| } |
| |
| bool |
| ThreadPlanStepInRange::ShouldStop (Event *event_ptr) |
| { |
| Log *log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP); |
| m_no_more_plans = false; |
| |
| if (log) |
| { |
| StreamString s; |
| s.Address (m_thread.GetRegisterContext()->GetPC(), m_thread.GetProcess().GetAddressByteSize()); |
| log->Printf("ThreadPlanStepInRange reached %s.", s.GetData()); |
| } |
| |
| // If we're still in the range, keep going. |
| if (InRange()) |
| return false; |
| |
| // If we're in an older frame then we should stop. |
| if (FrameIsOlder()) |
| return true; |
| |
| // See if we are in a place we should step through (i.e. a trampoline of some sort): |
| // One tricky bit here is that some stubs don't push a frame, so we have to check |
| // both the case of a frame that is younger, or the same as this frame. |
| // However, if the frame is the same, and we are still in the symbol we started |
| // in, the we don't need to do this. This first check isn't strictly necessary, |
| // but it is more efficient. |
| |
| if (!FrameIsYounger() && InSymbol()) |
| { |
| SetPlanComplete(); |
| return true; |
| } |
| |
| ThreadPlan* new_plan = NULL; |
| |
| bool stop_others; |
| if (m_stop_others == lldb::eOnlyThisThread) |
| stop_others = true; |
| else |
| stop_others = false; |
| |
| new_plan = m_thread.QueueThreadPlanForStepThrough (false, stop_others); |
| // If not, give the "should_stop" callback a chance to push a plan to get us out of here. |
| // But only do that if we actually have stepped in. |
| if (!new_plan && FrameIsYounger()) |
| new_plan = InvokeShouldStopHereCallback(); |
| |
| if (new_plan == NULL) |
| { |
| m_no_more_plans = true; |
| SetPlanComplete(); |
| return true; |
| } |
| else |
| { |
| m_no_more_plans = false; |
| return false; |
| } |
| } |
| |
| void |
| ThreadPlanStepInRange::SetFlagsToDefault () |
| { |
| GetFlags().Set(ThreadPlanStepInRange::s_default_flag_values); |
| } |
| |
| void |
| ThreadPlanStepInRange::SetDefaultFlagValue (uint32_t new_value) |
| { |
| // TODO: Should we test this for sanity? |
| ThreadPlanStepInRange::s_default_flag_values = new_value; |
| } |
| |
| ThreadPlan * |
| ThreadPlanStepInRange::DefaultShouldStopHereCallback (ThreadPlan *current_plan, Flags &flags, void *baton) |
| { |
| if (flags.IsSet(eAvoidNoDebug)) |
| { |
| StackFrame *frame = current_plan->GetThread().GetStackFrameAtIndex(0).get(); |
| |
| if (!frame->HasDebugInformation()) |
| { |
| // FIXME: Make sure the ThreadPlanForStepOut does the right thing with inlined functions. |
| return current_plan->GetThread().QueueThreadPlanForStepOut (false, NULL, true, current_plan->StopOthers(), eVoteNo, eVoteNoOpinion); |
| } |
| } |
| |
| return NULL; |
| } |