xref: /external/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleThreadPlanStepThroughObjCTrampoline.h

//===-- AppleThreadPlanStepThroughObjCTrampoline.h --------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef lldb_AppleThreadPlanStepThroughObjCTrampoline_h_
#define lldb_AppleThreadPlanStepThroughObjCTrampoline_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-types.h"
#include "lldb/lldb-enumerations.h"
#include "lldb/Core/Value.h"
#include "lldb/Target/ThreadPlan.h"
#include "AppleObjCTrampolineHandler.h"

namespace lldb_private
{

class AppleThreadPlanStepThroughObjCTrampoline : public ThreadPlan
{
public:
	//------------------------------------------------------------------
	// Constructors and Destructors
	//------------------------------------------------------------------
	AppleThreadPlanStepThroughObjCTrampoline(Thread &thread,
                                             AppleObjCTrampolineHandler *trampoline_handler,
                                             ValueList &values,
                                             lldb::addr_t isa_addr,
                                             lldb::addr_t sel_addr,
                                             bool stop_others);

	virtual ~AppleThreadPlanStepThroughObjCTrampoline();

    virtual void
    GetDescription (Stream *s,
                    lldb::DescriptionLevel level);

    virtual bool
    ValidatePlan (Stream *error);

    virtual lldb::StateType
    GetPlanRunState ();

    virtual bool
    ShouldStop (Event *event_ptr);

    virtual bool
    StopOthers()
    {
        return m_stop_others;
    }

    // The base class MischiefManaged does some cleanup - so you have to call it
    // in your MischiefManaged derived class.
    virtual bool
    MischiefManaged ();

    virtual void
    DidPush();

    static bool
    PreResumeInitializeClangFunction(void *myself);

    virtual bool
    WillStop();



protected:
	//------------------------------------------------------------------
	// Classes that inherit from AppleThreadPlanStepThroughObjCTrampoline can see and modify these
	//------------------------------------------------------------------
    virtual bool
    DoPlanExplainsStop (Event *event_ptr);

private:
    bool
    InitializeClangFunction ();

	//------------------------------------------------------------------
	// For AppleThreadPlanStepThroughObjCTrampoline only
	//------------------------------------------------------------------
    AppleObjCTrampolineHandler *m_trampoline_handler; // FIXME - ensure this doesn't go away on us?  SP maybe?
    lldb::addr_t m_args_addr;     // Stores the address for our step through function result structure.
    //lldb::addr_t m_object_addr;  // This is only for Description.
    ValueList    m_input_values;
    lldb::addr_t m_isa_addr;     // isa_addr and sel_addr are the keys we will use to cache the implementation.
    lldb::addr_t m_sel_addr;
    lldb::ThreadPlanSP m_func_sp;       // This is the function call plan.  We fill it at start, then set it
                                        // to NULL when this plan is done.  That way we know to go to:
    lldb::ThreadPlanSP m_run_to_sp;     // The plan that runs to the target.
    ClangFunction *m_impl_function;  // This is a pointer to a impl function that
                                     // is owned by the client that pushes this plan.
    bool m_stop_others;
};

} // namespace lldb_private

#endif	// lldb_AppleThreadPlanStepThroughObjCTrampoline_h_