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59 lines
1.3 KiB
59 lines
1.3 KiB
// RUN: %clangxx_cfi -o %t1 %s |
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// RUN: %expect_crash %t1 2>&1 | FileCheck --check-prefix=CFI %s |
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// RUN: %clangxx_cfi -DB32 -o %t2 %s |
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// RUN: %expect_crash %t2 2>&1 | FileCheck --check-prefix=CFI %s |
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// RUN: %clangxx_cfi -DB64 -o %t3 %s |
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// RUN: %expect_crash %t3 2>&1 | FileCheck --check-prefix=CFI %s |
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// RUN: %clangxx_cfi -DBM -o %t4 %s |
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// RUN: %expect_crash %t4 2>&1 | FileCheck --check-prefix=CFI %s |
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// RUN: %clangxx -o %t5 %s |
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// RUN: %t5 2>&1 | FileCheck --check-prefix=NCFI %s |
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// RUN: %clangxx_cfi_diag -o %t6 %s |
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// RUN: %t6 2>&1 | FileCheck --check-prefix=CFI-DIAG %s |
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// Tests that the CFI mechanism crashes the program when making a non-virtual |
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// call to an object of the wrong class, by casting a pointer to such an object |
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// and attempting to make a call through it. |
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// REQUIRES: cxxabi |
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#include <stdio.h> |
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#include "utils.h" |
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struct A { |
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virtual void v(); |
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}; |
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void A::v() {} |
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struct B { |
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void f(); |
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virtual void g(); |
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}; |
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void B::f() {} |
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void B::g() {} |
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int main() { |
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create_derivers<B>(); |
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A *a = new A; |
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break_optimization(a); |
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// CFI: 1 |
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// NCFI: 1 |
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fprintf(stderr, "1\n"); |
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// CFI-DIAG: runtime error: control flow integrity check for type 'B' failed during non-virtual call |
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// CFI-DIAG-NEXT: note: vtable is of type '{{(struct )?}}A' |
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((B *)a)->f(); // UB here |
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// CFI-NOT: {{^2$}} |
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// NCFI: {{^2$}} |
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fprintf(stderr, "2\n"); |
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}
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