1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/kernel/eka/compsupp/rvct2_2/ucppfini.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,84 @@
     1.4 +// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "ARM EABI LICENCE.txt"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// in kernel/eka/compsupp.
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// toplevel destruction routines for 'user side' code compiled 
    1.18 +// with the ARMEDG compiler.
    1.19 +// 
    1.20 +//
    1.21 +
    1.22 +#include "cppinit.h"
    1.23 +
    1.24 +extern "C" {
    1.25 +
    1.26 +#define MAX_DTOR_RECORDS 256
    1.27 +static dtd dtor_rec[MAX_DTOR_RECORDS];
    1.28 +
    1.29 +typedef dtd **dso_handle;
    1.30 +dtd * __dso_handle = &dtor_rec[MAX_DTOR_RECORDS];
    1.31 +
    1.32 +void __cxa_finalize ( dso_handle d );
    1.33 +
    1.34 +// Need to decide what this should do we run out of dtor space.
    1.35 +// Probably need to run __cxa_finalize then do some kind of panic.
    1.36 +void CppBSSInitializationError()
    1.37 +    {
    1.38 +//  __cxa_finalize(&dtor_rec[0]);
    1.39 +    };
    1.40 +
    1.41 +// This is called by compiler generated code to record needed destructions of
    1.42 +// dynamically initialized (ctor) top level (BSS) data. 
    1.43 +// I guess this is more efficient for the compiler than __cxa_atexit, since 
    1.44 +// it takes the object that needs dtoring as its first arg, which means its in
    1.45 +// the right register when the ctor returns.
    1.46 +void __aeabi_atexit(void *aObject, void (*aDtor)(void *), dso_handle aHandle)
    1.47 +    {
    1.48 +    dtd * drec = *aHandle;
    1.49 +    drec--;
    1.50 +
    1.51 +    if (drec < &dtor_rec[0])
    1.52 +      // Need to decide what to do here
    1.53 +      return CppBSSInitializationError();
    1.54 +
    1.55 +    drec->dtor = aDtor;
    1.56 +    drec->obj = aObject;
    1.57 +    *aHandle = drec;
    1.58 +    }
    1.59 +
    1.60 +int __cxa_atexit ( void (*aDtor)(void *), void *aObject, dso_handle aHandle )
    1.61 +    {
    1.62 +      __aeabi_atexit(aObject, aDtor, aHandle);
    1.63 +
    1.64 +    // This is what the C++ GABI spec says to do!!
    1.65 +    if (*aHandle < &dtor_rec[0]) 
    1.66 +      return -1;
    1.67 +    return 0;
    1.68 +    }
    1.69 +
    1.70 +void __cxa_finalize ( dso_handle d )
    1.71 +    {
    1.72 +    dtd * drec = * d;
    1.73 +    dtd * lim = &dtor_rec[MAX_DTOR_RECORDS];
    1.74 +    while (drec < lim) 
    1.75 +        {
    1.76 +	drec->dtor(drec->obj);
    1.77 +	drec++;
    1.78 +        }
    1.79 +    *d = drec;
    1.80 +    }
    1.81 +
    1.82 +void run_static_dtors (void)
    1.83 +    {
    1.84 +    __cxa_finalize(&__dso_handle);
    1.85 +    }
    1.86 +}
    1.87 +