forked from OSchip/llvm-project
97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
// UNSUPPORTED: windows-msvc
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// RUN: %clangxx_cfi -o %t %s
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// RUN: %expect_crash %run %t a
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// RUN: %expect_crash %run %t b
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// RUN: %expect_crash %run %t c
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// RUN: %expect_crash %run %t d
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// RUN: %expect_crash %run %t e
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// RUN: %run %t f
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// RUN: %run %t g
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// RUN: %clangxx_cfi_diag -o %t2 %s
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// RUN: %run %t2 a 2>&1 | FileCheck --check-prefix=A %s
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// RUN: %run %t2 b 2>&1 | FileCheck --check-prefix=B %s
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// RUN: %run %t2 c 2>&1 | FileCheck --check-prefix=C %s
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// RUN: %run %t2 d 2>&1 | FileCheck --check-prefix=D %s
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// RUN: %run %t2 e 2>&1 | FileCheck --check-prefix=E %s
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#include <assert.h>
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#include <string.h>
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struct SBase1 {
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void b1() {}
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};
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struct SBase2 {
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void b2() {}
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};
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struct S : SBase1, SBase2 {
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void f1() {}
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int f2() { return 1; }
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virtual void g1() {}
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virtual int g2() { return 1; }
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virtual int g3() { return 1; }
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};
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struct T {
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void f1() {}
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int f2() { return 2; }
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virtual void g1() {}
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virtual int g2() { return 2; }
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virtual void g3() {}
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};
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typedef void (S::*S_void)();
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typedef int (S::*S_int)();
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typedef int (T::*T_int)();
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template <typename To, typename From>
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To bitcast(From f) {
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assert(sizeof(To) == sizeof(From));
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To t;
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memcpy(&t, &f, sizeof(f));
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return t;
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}
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int main(int argc, char **argv) {
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S s;
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T t;
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switch (argv[1][0]) {
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case 'a':
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// A: runtime error: control flow integrity check for type 'int (S::*)()' failed during non-virtual pointer to member function call
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// A: note: S::f1() defined here
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(s.*bitcast<S_int>(&S::f1))();
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break;
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case 'b':
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// B: runtime error: control flow integrity check for type 'int (T::*)()' failed during non-virtual pointer to member function call
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// B: note: S::f2() defined here
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(t.*bitcast<T_int>(&S::f2))();
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break;
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case 'c':
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// C: runtime error: control flow integrity check for type 'int (S::*)()' failed during virtual pointer to member function call
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// C: note: vtable is of type 'S'
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(s.*bitcast<S_int>(&S::g1))();
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break;
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case 'd':
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// D: runtime error: control flow integrity check for type 'int (S::*)()' failed during virtual pointer to member function call
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// D: note: vtable is of type 'T'
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(reinterpret_cast<S &>(t).*&S::g2)();
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break;
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case 'e':
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// E: runtime error: control flow integrity check for type 'void (S::*)()' failed during virtual pointer to member function call
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// E: note: vtable is of type 'S'
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(s.*bitcast<S_void>(&T::g3))();
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break;
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case 'f':
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(s.*&SBase1::b1)();
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break;
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case 'g':
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(s.*&SBase2::b2)();
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break;
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}
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}
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