forked from OSchip/llvm-project
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
// RUN: %clangxx_cfi_dso -DSHARED_LIB %s -fPIC -shared -o %t1-so.so
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// RUN: %clangxx_cfi_dso %s -o %t1 %t1-so.so
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// RUN: %t1 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi_dso -DB32 -DSHARED_LIB %s -fPIC -shared -o %t2-so.so
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// RUN: %clangxx_cfi_dso -DB32 %s -o %t2 %t2-so.so
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// RUN: %t2 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi_dso -DB64 -DSHARED_LIB %s -fPIC -shared -o %t3-so.so
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// RUN: %clangxx_cfi_dso -DB64 %s -o %t3 %t3-so.so
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// RUN: %t3 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx_cfi_dso -DBM -DSHARED_LIB %s -fPIC -shared -o %t4-so.so
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// RUN: %clangxx_cfi_dso -DBM %s -o %t4 %t4-so.so
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// RUN: %t4 2>&1 | FileCheck --check-prefix=CFI %s
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// RUN: %clangxx -DBM -DSHARED_LIB %s -fPIC -shared -o %t5-so.so
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// RUN: %clangxx -DBM %s -o %t5 %t5-so.so
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// RUN: %t5 2>&1 | FileCheck --check-prefix=NCFI %s
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// RUN: %t5 x 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 <string.h>
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struct A {
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virtual void f();
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};
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A *create_B();
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#ifdef SHARED_LIB
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#include "../utils.h"
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struct B : public A {
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virtual void f();
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};
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void B::f() {}
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A *create_B() {
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create_derivers<B>();
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return new B();
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}
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#else
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void A::f() {}
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int main(int argc, char *argv[]) {
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A *a = create_B();
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// CFI: =1=
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// NCFI: =1=
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fprintf(stderr, "=1=\n");
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a->f(); // OK
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// CFI: =2=
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// NCFI: =2=
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fprintf(stderr, "=2=\n");
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}
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#endif
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