1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/kernelhwsrv/kerneltest/e32test/debug/t_codemodifier.cia Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,73 @@
1.4 +// Copyright (c) 2005-2009 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 "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// e32test\debug\t_codemodifier.cia
1.18 +// See e32test\debug\t_codemodifier.cpp for details
1.19 +//
1.20 +//
1.21 +
1.22 +#include <u32std.h>
1.23 +
1.24 +#ifdef __CPU_ARM
1.25 +const TUint32 KArmBreakPoint = 0xE7F123F4;
1.26 +
1.27 +
1.28 +#define BRK_4() \
1.29 + asm(".word %a0" : : "i" ((TInt)KArmBreakPoint)); \
1.30 + asm(".word %a0" : : "i" ((TInt)KArmBreakPoint)); \
1.31 + asm(".word %a0" : : "i" ((TInt)KArmBreakPoint)); \
1.32 + asm(".word %a0" : : "i" ((TInt)KArmBreakPoint)); \
1.33 +
1.34 +#define BRK_16() \
1.35 + BRK_4() \
1.36 + BRK_4() \
1.37 + BRK_4() \
1.38 + BRK_4() \
1.39 +
1.40 +#define BRK_64() \
1.41 + BRK_16() \
1.42 + BRK_16() \
1.43 + BRK_16() \
1.44 + BRK_16() \
1.45 +
1.46 +#define BRK_256() \
1.47 + BRK_64() \
1.48 + BRK_64() \
1.49 + BRK_64() \
1.50 + BRK_64() \
1.51 +
1.52 +#define BRK_1024() \
1.53 + BRK_256() \
1.54 + BRK_256() \
1.55 + BRK_256() \
1.56 + BRK_256() \
1.57 +
1.58 +__NAKED__ void CodeArea()
1.59 + {
1.60 + //These 1025 breakpoints will go accross page boundaries.
1.61 + asm(".word %a0" : : "i" ((TInt)KArmBreakPoint)); \
1.62 + BRK_1024();
1.63 + __JUMP(,lr);
1.64 + }
1.65 +
1.66 +/**
1.67 +The function will run in the server and is coded to cause panic.
1.68 +However, it will be altered remotely by the client before it runs.
1.69 +*/
1.70 +__NAKED__ void TestFunc()
1.71 + {
1.72 + asm(".word %a0" : : "i" ((TInt)KArmBreakPoint)); //This would panic but it will be replaced by NOP
1.73 + asm("nop");
1.74 + __JUMP(,lr);
1.75 + }
1.76 +#endif