sl@0: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "ARM EABI LICENCE.txt"
sl@0: // which accompanies this distribution, and is available
sl@0: // in kernel/eka/compsupp.
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // This file is part of usrt.lib (but not ksrt.lib).
sl@0: // 
sl@0: //
sl@0: 
sl@0: 
sl@0: extern "C" {
sl@0: 
sl@0: typedef void (DTOR)(void *);
sl@0: 
sl@0: struct dtd 
sl@0: { 
sl@0:     void * obj;
sl@0:     DTOR * dtor; 
sl@0: };
sl@0: 
sl@0: 
sl@0: #define MAX_DTOR_RECORDS 256
sl@0: dtd dtor_rec[MAX_DTOR_RECORDS];
sl@0: 
sl@0: typedef dtd** dso_handle;
sl@0: dtd * __dso_handle = &dtor_rec[MAX_DTOR_RECORDS];
sl@0: 
sl@0: 
sl@0: // This is called by compiler generated code to record needed destructions of
sl@0: // dynamically initialized (ctor) top level (BSS) data. 
sl@0: // I guess this is more efficient for the compiler than __cxa_atexit, since 
sl@0: // it takes the object that needs dtoring as its first arg, which means its in
sl@0: // the right register when the ctor returns.
sl@0: void __aeabi_atexit(void *aObject, void (*aDtor)(void *), dso_handle aHandle)
sl@0:     {
sl@0:     dtd * drec = *aHandle;
sl@0:     drec--;
sl@0: 
sl@0:     if (drec < &dtor_rec[0])
sl@0:         return; // Need to decide what to do here
sl@0: 
sl@0:     drec->dtor = aDtor;
sl@0:     drec->obj  = aObject;
sl@0: 
sl@0:     *aHandle = drec;
sl@0:     }
sl@0: 
sl@0: int __cxa_atexit( void (*aDtor)(void *), void *aObject, dso_handle aHandle )
sl@0:     {
sl@0:     __aeabi_atexit(aObject, aDtor, aHandle);
sl@0: 
sl@0:     // This is what the C++ GABI spec says to do!!
sl@0:     if (*aHandle < &dtor_rec[0]) 
sl@0:         return -1;
sl@0: 
sl@0:     return 0;
sl@0:     }
sl@0: 
sl@0: void __cxa_finalize(dso_handle d)
sl@0:     {
sl@0:     dtd * drec = * d;
sl@0:     dtd * lim  = &dtor_rec[MAX_DTOR_RECORDS];
sl@0:     
sl@0:     while (drec < lim) 
sl@0:         {
sl@0:         drec->dtor(drec->obj);
sl@0:         drec++;
sl@0:         }
sl@0: 
sl@0:     *d = drec;
sl@0:     }
sl@0: 
sl@0: void run_static_dtors()
sl@0:     {
sl@0:     __cxa_finalize(&__dso_handle);
sl@0:     }
sl@0: 
sl@0: 
sl@0: } // extern "C"