1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "ARM EABI LICENCE.txt"

     5 // which accompanies this distribution, and is available

     6 // in kernel/eka/compsupp.

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // toplevel destruction routines for 'user side' code compiled 

    15 // with the ARMEDG compiler.

    16 // 

    17 //

    18 

    19 #include "cppinit.h"

    20 

    21 extern "C" {

    22 

    23 #define MAX_DTOR_RECORDS 256

    24 static dtd dtor_rec[MAX_DTOR_RECORDS];

    25 

    26 typedef dtd **dso_handle;

    27 dtd * __dso_handle = &dtor_rec[MAX_DTOR_RECORDS];

    28 

    29 void __cxa_finalize ( dso_handle d );

    30 

    31 // Need to decide what this should do we run out of dtor space.

    32 // Probably need to run __cxa_finalize then do some kind of panic.

    33 void CppBSSInitializationError()

    34     {

    35 //  __cxa_finalize(&dtor_rec[0]);

    36     };

    37 

    38 // This is called by compiler generated code to record needed destructions of

    39 // dynamically initialized (ctor) top level (BSS) data. 

    40 // I guess this is more efficient for the compiler than __cxa_atexit, since 

    41 // it takes the object that needs dtoring as its first arg, which means its in

    42 // the right register when the ctor returns.

    43 void __aeabi_atexit(void *aObject, void (*aDtor)(void *), dso_handle aHandle)

    44     {

    45     dtd * drec = *aHandle;

    46     drec--;

    47 

    48     if (drec < &dtor_rec[0])

    49       // Need to decide what to do here

    50       return CppBSSInitializationError();

    51 

    52     drec->dtor = aDtor;

    53     drec->obj = aObject;

    54     *aHandle = drec;

    55     }

    56 

    57 int __cxa_atexit ( void (*aDtor)(void *), void *aObject, dso_handle aHandle )

    58     {

    59       __aeabi_atexit(aObject, aDtor, aHandle);

    60 

    61     // This is what the C++ GABI spec says to do!!

    62     if (*aHandle < &dtor_rec[0]) 

    63       return -1;

    64     return 0;

    65     }

    66 

    67 void __cxa_finalize ( dso_handle d )

    68     {

    69     dtd * drec = * d;

    70     dtd * lim = &dtor_rec[MAX_DTOR_RECORDS];

    71     while (drec < lim) 

    72         {

    73 	drec->dtor(drec->obj);

    74 	drec++;

    75         }

    76     *d = drec;

    77     }

    78 

    79 void run_static_dtors (void)

    80     {

    81     __cxa_finalize(&__dso_handle);

    82     }

    83 }

    84