forked from OSchip/llvm-project
102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
// 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_cfi -O1 -o %t5 %s
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// RUN: %expect_crash %t5 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O1 -DB32 -o %t6 %s
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// RUN: %expect_crash %t6 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O1 -DB64 -o %t7 %s
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// RUN: %expect_crash %t7 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O1 -DBM -o %t8 %s
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// RUN: %expect_crash %t8 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O2 -o %t9 %s
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// RUN: %expect_crash %t9 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O2 -DB32 -o %t10 %s
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// RUN: %expect_crash %t10 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O2 -DB64 -o %t11 %s
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// RUN: %expect_crash %t11 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O2 -DBM -o %t12 %s
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// RUN: %expect_crash %t12 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O3 -o %t13 %s
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// RUN: %expect_crash %t13 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O3 -DB32 -o %t14 %s
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// RUN: %expect_crash %t14 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O3 -DB64 -o %t15 %s
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// RUN: %expect_crash %t15 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi -O3 -DBM -o %t16 %s
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// RUN: %expect_crash %t16 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi_diag -o %t17 %s
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// RUN: %t17 2>&1 | FileCheck --check-prefix=CFI-DIAG %s
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// RUN: %clangxx -o %t18 %s
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// RUN: %t18 2>&1 | FileCheck --check-prefix=NCFI %s
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// RUN: %clangxx_cfi -DCHECK_NO_SANITIZE_CFI -o %t19 %s
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// RUN: %t19 2>&1 | FileCheck --check-prefix=NCFI %s
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// Tests that the CFI mechanism crashes the program when making a virtual call
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// to an object of the wrong class but with a compatible vtable, by casting a
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// pointer to such an object 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 f();
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};
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void A::f() {}
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struct B {
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virtual void f();
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};
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void B::f() {}
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#if defined(CHECK_NO_SANITIZE_CFI)
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__attribute__((no_sanitize("cfi")))
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#endif
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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 cast to unrelated type
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// CFI-DIAG-NEXT: note: vtable is of type '{{(struct )?}}A'
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// CFI-DIAG: runtime error: control flow integrity check for type 'B' failed during 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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