1 // Copyright (c) 2006-2009 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 "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32test\mmu\t_wsd_dl3.cpp

    15 //

    16 

    17 // MMH file will define	T_WSD_DL3

    18 #include "t_wsd_tst.h"

    19 

    20 #define C 		((void*)DummyFn)

    21 #define D 		((void*)TestData)

    22 #define A4W		C, D, C, D												// 4 words

    23 #define A16W	A4W, A4W, A4W, A4W										// 16 words

    24 #define A64W 	A16W, A16W, A16W, A16W									// 64 words

    25 #define A256W 	A64W, A64W, A64W, A64W									// 256 words

    26 #define A1KW	A256W, A256W, A256W, A256W								// 1Kwords

    27 #define A4KW	A1KW, A1KW, A1KW, A1KW									// 4Kwords

    28 

    29 // Non-exported dummy function whose address is put in the initialised

    30 // data, to check that it gets relocated correctly

    31 void DummyFn(void)

    32 	{

    33 	}

    34 

    35 // Non-exported const data, which should end up in the text segment

    36 // but doesn't on some platforms :(

    37 static const void* const TestData[] = { A4KW, A4KW };					// 8Kwords

    38 const TInt KSizeOfTestData = sizeof(TestData);							// 32Kbytes

    39 

    40 // Exported Ordinals 2-5

    41 EXPORT_D TInt32 TestDataSize = KSizeOfTestData;

    42 EXPORT_D void* WritableTestData[] = { A4KW, A4KW };

    43 EXPORT_D const void* const* PointerToStaticData = TestData;

    44 EXPORT_D void** PointerToWritableData = WritableTestData;

    45 

    46 // Dummy function, just so that this DLL contains more than one page of

    47 // text even on platforms where the read-only data ends up in the data

    48 // rather than the text segment ...

    49 TUint AddEmUp()

    50 	{

    51 	const void* const* p = TestData;

    52 	TUint sum = 0;

    53 

    54 #define	ADD1W	{ sum += (TUint)*p++; }									// 1 word

    55 #define	ADD4W	{ ADD1W; ADD1W; ADD1W; ADD1W; }							// 4 words

    56 #define	ADD16W	{ ADD4W; ADD4W; ADD4W; ADD4W; }							// 16 words

    57 #define	ADD64W	{ ADD16W; ADD16W; ADD16W; ADD16W; }						// 64 words

    58 #define	ADD256W	{ ADD64W; ADD64W; ADD64W; ADD64W; }						// 256 words

    59 #define	ADD1KW	{ ADD256W; ADD256W; ADD256W; ADD256W; }					// 1K words

    60 

    61 	// The macro ADD1KW should expand to ~2K instructions i.e. ~8Kb of inline code

    62 	for (TUint i = 0; i < sizeof(TestData)/(1024*sizeof(void*)); ++i)

    63 		ADD1KW;

    64 

    65 	// We've added up all 8Kwords (32kb) of the test data ...

    66 	return sum;

    67 	}

    68 

    69 // Exported Ordinal 1

    70 EXPORT_C void** GetAddressOfData(TInt& aSize, void*& aCodeAddr, void*& aDataAddr)

    71 	{

    72 	TAny* p = User::Alloc(KSizeOfTestData);

    73 	aSize = AddEmUp();

    74 	aSize = KSizeOfTestData;

    75 	aCodeAddr = C;

    76 	aDataAddr = D;

    77 	User::Free(p);

    78 	return (void**)&PointerToStaticData;

    79 	}

    80