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// RUN: %clangxx_cfi -o %t1 %s
// RUN: %expect_crash %t1 a 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t1 b 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t1 c 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t1 d 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t1 e 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t1 f 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %expect_crash %t1 g 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t1 h 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %clangxx_cfi -DB32 -o %t2 %s
// RUN: %expect_crash %t2 a 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t2 b 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t2 c 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t2 d 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t2 e 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t2 f 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %expect_crash %t2 g 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t2 h 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %clangxx_cfi -DB64 -o %t3 %s
// RUN: %expect_crash %t3 a 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t3 b 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t3 c 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t3 d 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t3 e 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t3 f 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %expect_crash %t3 g 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t3 h 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %clangxx_cfi -DBM -o %t4 %s
// RUN: %expect_crash %t4 a 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t4 b 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t4 c 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t4 d 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t4 e 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t4 f 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %expect_crash %t4 g 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %t4 h 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %clangxx_cfi -fsanitize=cfi-cast-strict -o %t5 %s
// RUN: %expect_crash %t5 a 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t5 b 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t5 c 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t5 d 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t5 e 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t5 f 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t5 g 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %expect_crash %t5 h 2>&1 | FileCheck --check-prefix=FAIL %s
// RUN: %clangxx -o %t6 %s
// RUN: %t6 a 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t6 b 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t6 c 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t6 d 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t6 e 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t6 f 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t6 g 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %t6 h 2>&1 | FileCheck --check-prefix=PASS %s
// RUN: %clangxx_cfi_diag -o %t7 %s
// RUN: %t7 a 2>&1 | FileCheck --check-prefix=CFI-DIAG-D %s
// RUN: %t7 b 2>&1 | FileCheck --check-prefix=CFI-DIAG-D %s
// RUN: %t7 c 2>&1 | FileCheck --check-prefix=CFI-DIAG-D %s
// RUN: %t7 g 2>&1 | FileCheck --check-prefix=CFI-DIAG-U %s
// Tests that the CFI enforcement detects bad casts.
// REQUIRES: cxxabi
#include <stdio.h>
#include "utils.h"
struct A {
virtual void f();
};
void A::f() {}
struct B : A {
virtual void f();
};
void B::f() {}
struct C : A {
};
int main(int argc, char **argv) {
#ifdef B32
break_optimization(new Deriver<B, 0>);
#endif
#ifdef B64
break_optimization(new Deriver<B, 0>);
break_optimization(new Deriver<B, 1>);
#endif
#ifdef BM
break_optimization(new Deriver<B, 0>);
break_optimization(new Deriver<B, 1>);
break_optimization(new Deriver<B, 2>);
#endif
B *b = new B;
break_optimization(b);
// FAIL: 1
// PASS: 1
fprintf(stderr, "1\n");
A a;
// CFI-DIAG-D: runtime error: control flow integrity check for type 'B' failed during base-to-derived cast
// CFI-DIAG-D-NEXT: note: vtable is of type '{{(struct )?}}A'
// CFI-DIAG-U: runtime error: control flow integrity check for type 'B' failed during cast to unrelated type
// CFI-DIAG-U-NEXT: note: vtable is of type '{{(struct )?}}A'
switch (argv[1][0]) {
case 'a':
static_cast<B *>(&a); // UB
break;
case 'b':
static_cast<B &>(a); // UB
break;
case 'c':
static_cast<B &&>(a); // UB
break;
case 'd':
static_cast<C *>(&a); // UB, strict only
break;
case 'e':
static_cast<C &>(a); // UB, strict only
break;
case 'f':
static_cast<C &&>(a); // UB, strict only
break;
case 'g':
static_cast<B *>(static_cast<void *>(&a)); // Non-UB bad cast
break;
case 'h':
static_cast<C *>(static_cast<void *>(&a)); // Non-UB bad cast, strict only
break;
}
// FAIL-NOT: {{^2$}}
// PASS: {{^2$}}
fprintf(stderr, "2\n");
}
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