Initial checkin of lldb code from internal Apple repo.
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Target/ThreadPlanStepInRange.cpp b/source/Target/ThreadPlanStepInRange.cpp
new file mode 100644
index 0000000..f62fdb8
--- /dev/null
+++ b/source/Target/ThreadPlanStepInRange.cpp
@@ -0,0 +1,154 @@
+//===-- 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;
+}