llvm-project/lldb/source/Target/ThreadPlanPython.cpp

190 lines
5.9 KiB
C++
Raw Normal View History

//===-- ThreadPlan.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/ThreadPlan.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/State.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/ScriptInterpreter.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/Thread.h"
#include "lldb/Target/ThreadPlan.h"
#include "lldb/Target/ThreadPlanPython.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
//----------------------------------------------------------------------
// ThreadPlanPython
//----------------------------------------------------------------------
ThreadPlanPython::ThreadPlanPython (Thread &thread, const char *class_name) :
ThreadPlan (ThreadPlan::eKindPython,
"Python based Thread Plan",
thread,
eVoteNoOpinion,
eVoteNoOpinion),
m_class_name (class_name)
{
SetIsMasterPlan (true);
SetOkayToDiscard (true);
SetPrivate (false);
}
ThreadPlanPython::~ThreadPlanPython ()
{
// FIXME, do I need to decrement the ref count on this implementation object to make it go away?
}
bool
ThreadPlanPython::ValidatePlan (Stream *error)
{
// I have to postpone setting up the implementation till after the constructor because I need to call
// shared_from_this, which you can't do in the constructor. So I'll do it here.
if (m_implementation_sp)
return true;
else
return false;
}
void
ThreadPlanPython::DidPush()
{
// We set up the script side in DidPush, so that it can push other plans in the constructor,
// and doesn't have to care about the details of DidPush.
if (!m_class_name.empty())
{
ScriptInterpreter *script_interp = m_thread.GetProcess()->GetTarget().GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
if (script_interp)
{
m_implementation_sp = script_interp->CreateScriptedThreadPlan (m_class_name.c_str(), this->shared_from_this());
}
}
}
bool
ThreadPlanPython::ShouldStop (Event *event_ptr)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
if (log)
log->Printf ("%s called on Python Thread Plan: %s )",
__PRETTY_FUNCTION__, m_class_name.c_str());
bool should_stop = true;
if (m_implementation_sp)
{
ScriptInterpreter *script_interp = m_thread.GetProcess()->GetTarget().GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
if (script_interp)
{
bool script_error;
should_stop = script_interp->ScriptedThreadPlanShouldStop (m_implementation_sp, event_ptr, script_error);
if (script_error)
SetPlanComplete(false);
}
}
return should_stop;
}
bool
ThreadPlanPython::DoPlanExplainsStop (Event *event_ptr)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
if (log)
log->Printf ("%s called on Python Thread Plan: %s )",
__PRETTY_FUNCTION__, m_class_name.c_str());
bool explains_stop = true;
if (m_implementation_sp)
{
ScriptInterpreter *script_interp = m_thread.GetProcess()->GetTarget().GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
if (script_interp)
{
bool script_error;
explains_stop = script_interp->ScriptedThreadPlanExplainsStop (m_implementation_sp, event_ptr, script_error);
if (script_error)
SetPlanComplete(false);
}
}
return explains_stop;
}
bool
ThreadPlanPython::MischiefManaged ()
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
if (log)
log->Printf ("%s called on Python Thread Plan: %s )",
__PRETTY_FUNCTION__, m_class_name.c_str());
bool mischief_managed = true;
if (m_implementation_sp)
{
// I don't really need mischief_managed, since it's simpler to just call SetPlanComplete in should_stop.
mischief_managed = IsPlanComplete();
if (mischief_managed)
m_implementation_sp.reset();
}
return mischief_managed;
}
lldb::StateType
ThreadPlanPython::GetPlanRunState ()
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
if (log)
log->Printf ("%s called on Python Thread Plan: %s )",
__PRETTY_FUNCTION__,
m_class_name.c_str());
lldb::StateType run_state = eStateRunning;
if (m_implementation_sp)
{
ScriptInterpreter *script_interp = m_thread.GetProcess()->GetTarget().GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
if (script_interp)
{
bool script_error;
run_state = script_interp->ScriptedThreadPlanGetRunState (m_implementation_sp, script_error);
}
}
return run_state;
}
// The ones below are not currently exported to Python.
bool
ThreadPlanPython::StopOthers ()
{
// For now Python plans run all threads, but we should add some controls for this.
return false;
}
void
ThreadPlanPython::GetDescription (Stream *s,
lldb::DescriptionLevel level)
{
s->Printf ("Python thread plan implemented by class %s.", m_class_name.c_str());
}
bool
ThreadPlanPython::WillStop ()
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
if (log)
log->Printf ("%s called on Python Thread Plan: %s )",
__PRETTY_FUNCTION__, m_class_name.c_str());
return true;
}