| 1 | // RUN: %clangxx_msan %s -O0 -fsanitize-memory-use-after-dtor -o %t && %run %t |
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| 2 | // RUN: %clangxx_msan %s -O1 -fsanitize-memory-use-after-dtor -o %t && %run %t |
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| 3 | // RUN: %clangxx_msan %s -O2 -fsanitize-memory-use-after-dtor -o %t && %run %t |
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| 4 | // RUN: %clangxx_msan %s -DCVPTR=1 -O2 -fsanitize-memory-use-after-dtor -fsanitize-memory-track-origins -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CVPTR |
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| 5 | // RUN: %clangxx_msan %s -DEAVPTR=1 -O2 -fsanitize-memory-use-after-dtor -fsanitize-memory-track-origins -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=EAVPTR |
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| 6 | // RUN: %clangxx_msan %s -DEDVPTR=1 -O2 -fsanitize-memory-use-after-dtor -fsanitize-memory-track-origins -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=EDVPTR |
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| 7 | |
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| 8 | // Expected to quit due to invalid access when invoking |
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| 9 | // function using vtable. |
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| 10 | |
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| 11 | class A { |
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| 12 | public: |
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| 13 | int x; |
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| 14 | virtual ~A() { |
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| 15 | // Should succeed |
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| 16 | this->A_Foo(); |
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| 17 | } |
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| 18 | virtual void A_Foo() {} |
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| 19 | }; |
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| 20 | |
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| 21 | class B : public virtual A { |
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| 22 | public: |
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| 23 | int y; |
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| 24 | virtual ~B() {} |
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| 25 | virtual void A_Foo() {} |
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| 26 | }; |
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| 27 | |
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| 28 | class C : public B { |
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| 29 | public: |
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| 30 | int z; |
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| 31 | }; |
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| 32 | |
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| 33 | class D { |
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| 34 | public: |
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| 35 | int w; |
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| 36 | ~D() {} |
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| 37 | virtual void D_Foo() {} |
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| 38 | }; |
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| 39 | |
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| 40 | class E : public virtual A, public virtual D { |
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| 41 | public: |
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| 42 | int u; |
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| 43 | ~E() {} |
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| 44 | void A_Foo() {} |
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| 45 | }; |
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| 46 | |
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| 47 | int main() { |
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| 48 | // Simple linear inheritance |
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| 49 | C *c = new C(); |
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| 50 | c->~C(); |
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| 51 | // This fails |
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| 52 | #ifdef CVPTR |
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| 53 | c->A_Foo(); |
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| 54 | // CVPTR: Virtual table ptr was destroyed |
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| 55 | // CVPTR: {{#0 0x.* in __sanitizer_dtor_callback_vptr}} |
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| 56 | // CVPTR: {{#1 0x.* in ~C .*cpp:}}[[@LINE-28]]: |
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| 57 | // CVPTR: {{#2 0x.* in main .*cpp:}}[[@LINE-7]]: |
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| 58 | #endif |
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| 59 | |
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| 60 | // Multiple inheritance, so has multiple vtables |
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| 61 | E *e = new E(); |
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| 62 | e->~E(); |
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| 63 | // Both of these fail |
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| 64 | #ifdef EAVPTR |
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| 65 | e->A_Foo(); |
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| 66 | // EAVPTR: Virtual table ptr was destroyed |
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| 67 | // EAVPTR: {{#0 0x.* in __sanitizer_dtor_callback_vptr}} |
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| 68 | // EAVPTR: {{#1 0x.* in ~E .*cpp:}}[[@LINE-25]]: |
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| 69 | // EAVPTR: {{#2 0x.* in main .*cpp:}}[[@LINE-7]]: |
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| 70 | #endif |
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| 71 | |
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| 72 | #ifdef EDVPTR |
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| 73 | e->D_Foo(); |
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| 74 | // EDVPTR: Virtual table ptr was destroyed |
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| 75 | // EDVPTR: {{#0 0x.* in __sanitizer_dtor_callback_vptr}} |
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| 76 | // EDVPTR: {{#1 0x.* in ~E .*cpp:}}[[@LINE-33]]: |
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| 77 | // EDVPTR: {{#2 0x.* in main .*cpp:}}[[@LINE-15]]: |
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| 78 | #endif |
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| 79 | } |
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| 80 | |
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