os/kernelhwsrv/kernel/eka/compsupp/rvct2_2/aeabimem.cia
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     1 // Copyright (c) 2005-2009 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 //
    15 
    16 #include <e32cmn.h>
    17 
    18 // Call our implementations of memcpy/move/set/clr rather than the ARM supplied
    19 // ones.
    20 // 
    21 // Note that the AEABI switched the order of arg2 and arg3 to save an intruction
    22 // when calling 'memset' from 'memclr'.
    23 //
    24 // Prototypes are:
    25 //   void __aeabi_memset8(TAny* aTrg, unsigned int aLength, TInt aValue);
    26 //   void __aeabi_memset4(TAny* aTrg, unsigned int aLength, TInt aValue);
    27 //   void __aeabi_memset(TAny* aTrg, unsigned int aLength, TInt aValue);
    28 
    29 extern "C" __NAKED__ void make_mem_functions_call_euser_versions()
    30 	{
    31 	asm(".global __aeabi_memset8  ");
    32 	asm("__aeabi_memset8: 		  ");
    33 	asm(".global __aeabi_memset4  ");
    34 	asm("__aeabi_memset4: 		  ");
    35 	asm(".global __aeabi_memset   ");
    36 	asm("__aeabi_memset: 		  ");
    37 	asm("	mov		r3, r1		  ");
    38 	asm("	mov		r1, r2		  ");
    39 	asm("	mov		r2, r3		  ");
    40 	asm("	b		memset		  ");
    41 
    42 	asm(".global __aeabi_memclr8  ");
    43 	asm("__aeabi_memclr8: 		  ");
    44 	asm(".global __aeabi_memclr4  ");
    45 	asm("__aeabi_memclr4: 		  ");
    46 	asm(".global __aeabi_memclr   ");
    47 	asm("__aeabi_memclr: 		  ");
    48 	asm("	b		memclr		  ");
    49 	
    50 	asm(".global __aeabi_memcpy8  ");
    51 	asm("__aeabi_memcpy8: 		  ");
    52 	asm(".global __aeabi_memcpy4  ");
    53 	asm("__aeabi_memcpy4: 		  ");
    54 	asm(".global __aeabi_memcpy   ");
    55 	asm("__aeabi_memcpy: 		  ");
    56 	asm("	b		memcpy		  ");
    57 	
    58 	asm(".global __aeabi_memmove8 ");
    59 	asm("__aeabi_memmove8: 		  ");
    60 	asm(".global __aeabi_memmove4 ");
    61 	asm("__aeabi_memmove4: 		  ");
    62 	asm(".global __aeabi_memmove  ");
    63 	asm("__aeabi_memmove: 		  ");
    64 	asm("	b		memmove		  ");
    65 	}