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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32test\mmu\t_wsd_dl3.cpp |
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15 // |
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16 |
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17 // MMH file will define T_WSD_DL3 |
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18 #include "t_wsd_tst.h" |
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19 |
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20 #define C ((void*)DummyFn) |
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21 #define D ((void*)TestData) |
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22 #define A4W C, D, C, D // 4 words |
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23 #define A16W A4W, A4W, A4W, A4W // 16 words |
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24 #define A64W A16W, A16W, A16W, A16W // 64 words |
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25 #define A256W A64W, A64W, A64W, A64W // 256 words |
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26 #define A1KW A256W, A256W, A256W, A256W // 1Kwords |
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27 #define A4KW A1KW, A1KW, A1KW, A1KW // 4Kwords |
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28 |
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29 // Non-exported dummy function whose address is put in the initialised |
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30 // data, to check that it gets relocated correctly |
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31 void DummyFn(void) |
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32 { |
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33 } |
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34 |
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35 // Non-exported const data, which should end up in the text segment |
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36 // but doesn't on some platforms :( |
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37 static const void* const TestData[] = { A4KW, A4KW }; // 8Kwords |
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38 const TInt KSizeOfTestData = sizeof(TestData); // 32Kbytes |
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39 |
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40 // Exported Ordinals 2-5 |
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41 EXPORT_D TInt32 TestDataSize = KSizeOfTestData; |
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42 EXPORT_D void* WritableTestData[] = { A4KW, A4KW }; |
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43 EXPORT_D const void* const* PointerToStaticData = TestData; |
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44 EXPORT_D void** PointerToWritableData = WritableTestData; |
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45 |
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46 // Dummy function, just so that this DLL contains more than one page of |
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47 // text even on platforms where the read-only data ends up in the data |
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48 // rather than the text segment ... |
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49 TUint AddEmUp() |
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50 { |
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51 const void* const* p = TestData; |
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52 TUint sum = 0; |
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53 |
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54 #define ADD1W { sum += (TUint)*p++; } // 1 word |
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55 #define ADD4W { ADD1W; ADD1W; ADD1W; ADD1W; } // 4 words |
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56 #define ADD16W { ADD4W; ADD4W; ADD4W; ADD4W; } // 16 words |
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57 #define ADD64W { ADD16W; ADD16W; ADD16W; ADD16W; } // 64 words |
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58 #define ADD256W { ADD64W; ADD64W; ADD64W; ADD64W; } // 256 words |
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59 #define ADD1KW { ADD256W; ADD256W; ADD256W; ADD256W; } // 1K words |
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60 |
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61 // The macro ADD1KW should expand to ~2K instructions i.e. ~8Kb of inline code |
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62 for (TUint i = 0; i < sizeof(TestData)/(1024*sizeof(void*)); ++i) |
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63 ADD1KW; |
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64 |
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65 // We've added up all 8Kwords (32kb) of the test data ... |
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66 return sum; |
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67 } |
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68 |
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69 // Exported Ordinal 1 |
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70 EXPORT_C void** GetAddressOfData(TInt& aSize, void*& aCodeAddr, void*& aDataAddr) |
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71 { |
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72 TAny* p = User::Alloc(KSizeOfTestData); |
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73 aSize = AddEmUp(); |
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74 aSize = KSizeOfTestData; |
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75 aCodeAddr = C; |
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76 aDataAddr = D; |
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77 User::Free(p); |
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78 return (void**)&PointerToStaticData; |
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79 } |
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80 |