bool
ThreadPlanShouldStopHere::DefaultShouldStopHereCallback (ThreadPlan *current_plan,
Flags &flags,
FrameComparison operation,
void *baton)
{
bool should_stop_here = true;
StackFrame *frame = current_plan->GetThread().GetStackFrameAtIndex(0).get();
if (!frame)
return true;
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
if ((operation == eFrameCompareOlder && flags.Test(eStepOutAvoidNoDebug))
|| (operation == eFrameCompareYounger && flags.Test(eStepInAvoidNoDebug))
|| (operation == eFrameCompareSameParent && flags.Test(eStepInAvoidNoDebug)))
{
if (!frame->HasDebugInformation())
{
if (log)
log->Printf ("Stepping out of frame with no debug info");
should_stop_here = false;
}
}
// Always avoid code with line number 0.
// FIXME: At present the ShouldStop and the StepFromHere calculate this independently. If this ever
// becomes expensive (this one isn't) we can try to have this set a state that the StepFromHere can use.
if (frame)
{
SymbolContext sc;
sc = frame->GetSymbolContext (eSymbolContextLineEntry);
if (sc.line_entry.line == 0)
should_stop_here = false;
}
return should_stop_here;
}
ThreadPlan *
ThreadPlanStepInRange::DefaultShouldStopHereCallback (ThreadPlan *current_plan, Flags &flags, void *baton)
{
bool should_step_out = false;
StackFrame *frame = current_plan->GetThread().GetStackFrameAtIndex(0).get();
if (flags.Test(eAvoidNoDebug))
{
if (!frame->HasDebugInformation())
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
if (log)
log->Printf ("Stepping out of frame with no debug info");
should_step_out = true;
}
}
if (current_plan->GetKind() == eKindStepInRange)
{
ThreadPlanStepInRange *step_in_range_plan = static_cast<ThreadPlanStepInRange *> (current_plan);
if (step_in_range_plan->m_step_into_target)
{
SymbolContext sc = frame->GetSymbolContext(eSymbolContextFunction|eSymbolContextBlock|eSymbolContextSymbol);
if (sc.symbol != NULL)
{
// First try an exact match, since that's cheap with ConstStrings. Then do a strstr compare.
if (step_in_range_plan->m_step_into_target == sc.GetFunctionName())
{
should_step_out = false;
}
else
{
const char *target_name = step_in_range_plan->m_step_into_target.AsCString();
const char *function_name = sc.GetFunctionName().AsCString();
if (function_name == NULL)
should_step_out = true;
else if (strstr (function_name, target_name) == NULL)
should_step_out = true;
}
}
}
if (!should_step_out)
{
ThreadPlanStepInRange *step_in_range_plan = static_cast<ThreadPlanStepInRange *> (current_plan);
should_step_out = step_in_range_plan->FrameMatchesAvoidRegexp ();
}
}
if (should_step_out)
{
// FIXME: Make sure the ThreadPlanForStepOut does the right thing with inlined functions.
// We really should have all plans take the tri-state for "stop others" so we can do the right
// thing. For now let's be safe and always run others when we are likely to run arbitrary code.
const bool stop_others = false;
return current_plan->GetThread().QueueThreadPlanForStepOut (false,
NULL,
true,
stop_others,
eVoteNo,
eVoteNoOpinion,
0); // Frame index
}
return NULL;
}