| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -verify %s |
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| 2 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -analyzer-output=plist-multi-file %s -o %t.plist |
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| 3 | // RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-macros.cpp.plist - |
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| 4 | |
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| 5 | |
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| 6 | typedef __typeof(sizeof(int)) size_t; |
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| 7 | void *malloc(size_t); |
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| 8 | |
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| 9 | #define mallocmemory int *x = (int*)malloc(12); |
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| 10 | void noteOnMacro(int y) { |
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| 11 | y++; |
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| 12 | y--; |
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| 13 | mallocmemory |
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| 14 | y++; |
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| 15 | y++; |
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| 16 | delete x; // expected-warning {{Memory allocated by malloc() should be deallocated by free(), not 'delete'}} |
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| 17 | } |
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| 18 | |
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| 19 | void macroIsFirstInFunction(int y) { |
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| 20 | mallocmemory |
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| 21 | y++; // expected-warning {{Potential leak of memory pointed to by 'x'}} |
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| 22 | } |
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| 23 | |
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| 24 | #define checkmacro p==0 |
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| 25 | void macroInExpressionAux(bool b); |
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| 26 | int macroInExpression(int *p, int y) {; |
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| 27 | y++; |
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| 28 | macroInExpressionAux(checkmacro); |
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| 29 | |
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| 30 | return *p; // expected-warning {{Dereference of null pointer}} |
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| 31 | } |
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| 32 | |
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| 33 | #define noPathNoteMacro y+y |
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| 34 | int macroInExpressionNoNote(int *p, int y) {; |
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| 35 | y++; |
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| 36 | if (5 + noPathNoteMacro) |
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| 37 | if (p) |
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| 38 | ; |
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| 39 | return *p; // expected-warning {{Dereference of null pointer}} |
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| 40 | } |
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| 41 | |
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| 42 | #define macroWithArg(mp) mp==0 |
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| 43 | int macroWithArgInExpression(int *p, int y) {; |
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| 44 | y++; |
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| 45 | if (macroWithArg(p)) |
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| 46 | ; |
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| 47 | return *p; // expected-warning {{Dereference of null pointer}} |
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| 48 | } |
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| 49 | |
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| 50 | #define multiNoteMacroWithError \ |
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| 51 | if (p) \ |
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| 52 | ;\ |
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| 53 | *p = 5; |
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| 54 | int useMultiNoteMacroWithError(int *p, int y) {; |
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| 55 | y++; |
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| 56 | multiNoteMacroWithError // expected-warning {{Dereference of null pointer}} |
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| 57 | |
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| 58 | return *p; |
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| 59 | } |
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| 60 | |
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| 61 | #define multiNoteMacro \ |
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| 62 | if (p) \ |
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| 63 | ;\ |
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| 64 | if (y) \ |
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| 65 | ; |
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| 66 | int useMultiNote(int *p, int y) {; |
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| 67 | y++; |
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| 68 | if (p) {} |
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| 69 | multiNoteMacro |
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| 70 | |
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| 71 | return *p; // expected-warning {{Dereference of null pointer}} |
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| 72 | } |
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| 73 | |
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| 74 | #define CALL_FN(a) null_deref(a) |
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| 75 | |
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| 76 | void null_deref(int *a) { |
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| 77 | if (a) |
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| 78 | return; |
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| 79 | *a = 1; // expected-warning {{Dereference of null pointer}} |
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| 80 | } |
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| 81 | |
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| 82 | void test1() { |
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| 83 | CALL_FN(0); |
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| 84 | } |
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| 85 | |
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| 86 | void test2(int *p) { |
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| 87 | CALL_FN(p); |
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| 88 | } |
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| 89 | |
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