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1 // Copyright (c) 2002-2009 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\misc\exc.cpp |
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15 // Utility generating various kinds of exceptions. Useful to test |
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16 // debuggers. |
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17 // |
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18 // |
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19 |
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20 #include <e32std.h> |
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21 #include <e32std_private.h> |
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22 |
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23 void InfiniteRecursion() |
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24 { |
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25 InfiniteRecursion(); |
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26 } |
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27 |
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28 #ifdef __ARMCC__ |
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29 #pragma Ono_inline // prevent compile time errors |
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30 #endif |
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31 void Store42(TInt*& p) |
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32 { |
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33 *p = 42; |
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34 } |
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35 |
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36 void Foo() |
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37 { |
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38 // uninitialised pointer on stack - may not crash |
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39 TInt* p; |
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40 Store42(p); |
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41 } |
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42 void Foo1(TUint8 *ps) |
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43 { |
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44 TInt32* p = (TInt32*)ps; |
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45 *p = 0x42; |
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46 } |
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47 void Foo2(TUint8 *ps) |
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48 { |
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49 TInt16* p = (TInt16*)ps; |
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50 *p = 0x42; |
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51 } |
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52 |
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53 TInt E32Main() |
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54 { |
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55 TBuf<32> cmd; |
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56 User::CommandLine(cmd); |
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57 TLex lex(cmd); |
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58 TInt n=0; |
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59 lex.Val(n); |
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60 |
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61 typedef void (*TPfn)(); |
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62 |
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63 switch (n) |
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64 { |
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65 default: |
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66 case 0: |
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67 { |
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68 // data abort - accessing non-existent memory |
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69 TInt* p = (TInt*) 0x1000; |
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70 *p = 0x42; |
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71 } |
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72 break; |
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73 case 1: |
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74 // data abort - stack overflow |
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75 InfiniteRecursion(); |
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76 break; |
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77 case 2: |
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78 { |
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79 // data abort - pointer in deleted heap cell |
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80 // May not crash on UREL builds |
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81 struct S { TInt* iPtr; }; |
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82 S* p = new S; |
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83 p->iPtr = new TInt; |
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84 delete p->iPtr; |
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85 delete p; |
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86 *(p->iPtr) = 42; |
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87 } |
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88 break; |
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89 case 3: |
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90 // data abort - uninitialised pointer on stack |
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91 Foo(); |
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92 break; |
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93 case 4: |
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94 { |
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95 // data abort - misaligned access to 32 bit word |
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96 TUint8 buffer[16]; |
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97 Foo1(buffer+2); |
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98 } |
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99 break; |
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100 case 5: |
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101 { |
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102 // data abort - misaligned access to 16 bit word |
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103 TUint8 buffer[16]; |
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104 Foo2 (buffer+1); |
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105 } |
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106 break; |
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107 case 6: |
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108 { |
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109 // prefetch abort |
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110 TPfn f = NULL; |
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111 f(); |
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112 } |
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113 break; |
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114 case 7: |
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115 { |
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116 // undefined instruction |
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117 TUint32 undef = 0xE6000010; |
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118 TPfn f = (TPfn) &undef; |
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119 f(); |
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120 } |
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121 break; |
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122 } |
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123 |
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124 return 0; |
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125 } |