1// RUN: %clangxx_cfi -c -DTU1 -o %t1.o %s
2// RUN: %clangxx_cfi -c -DTU2 -o %t2.o %S/../cfi/anon-namespace.cpp
3// RUN: %clangxx_cfi -o %t1 %t1.o %t2.o
4// RUN: %expect_crash %run %t1 2>&1 | FileCheck --check-prefix=CFI %s
5
6// RUN: %clangxx_cfi -c -DTU1 -DB32 -o %t1.o %s
7// RUN: %clangxx_cfi -c -DTU2 -DB32 -o %t2.o %S/../cfi/anon-namespace.cpp
8// RUN: %clangxx_cfi -o %t2 %t1.o %t2.o
9// RUN: %expect_crash %run %t2 2>&1 | FileCheck --check-prefix=CFI %s
10
11// RUN: %clangxx_cfi -c -DTU1 -DB64 -o %t1.o %s
12// RUN: %clangxx_cfi -c -DTU2 -DB64 -o %t2.o %S/../cfi/anon-namespace.cpp
13// RUN: %clangxx_cfi -o %t3 %t1.o %t2.o
14// RUN: %expect_crash %run %t3 2>&1 | FileCheck --check-prefix=CFI %s
15
16// RUN: %clangxx_cfi -c -DTU1 -DBM -o %t1.o %s
17// RUN: %clangxx_cfi -c -DTU2 -DBM -o %t2.o %S/../cfi/anon-namespace.cpp
18// RUN: %clangxx_cfi -o %t4 %t1.o %t2.o
19// RUN: %expect_crash %run %t4 2>&1 | FileCheck --check-prefix=CFI %s
20
21// RUN: %clangxx -c -DTU1 -o %t1.o %s
22// RUN: %clangxx -c -DTU2 -o %t2.o %S/../cfi/anon-namespace.cpp
23// RUN: %clangxx -o %t5 %t1.o %t2.o
24// RUN: %run %t5 2>&1 | FileCheck --check-prefix=NCFI %s
25
26// RUN: %clangxx_cfi_diag -c -DTU1 -o %t1.o %s
27// RUN: %clangxx_cfi_diag -c -DTU2 -o %t2.o %S/../cfi/anon-namespace.cpp
28// RUN: %clangxx_cfi_diag -o %t6 %t1.o %t2.o
29// RUN: %run %t6 2>&1 | FileCheck --check-prefix=CFI-DIAG %s
30
31// Tests that the CFI mechanism treats classes in the anonymous namespace in
32// different translation units as having distinct identities. This is done by
33// compiling two translation units TU1 and TU2 containing a class named B in an
34// anonymous namespace, and testing that the program crashes if TU2 attempts to
35// use a TU1 B as a TU2 B.
36
37// FIXME: This test should not require that the paths supplied to the compiler
38// are different. It currently does so because bitset names have global scope
39// so we have to mangle the file path into the bitset name.
40
41// REQUIRES: cxxabi
42
43#include <stdio.h>
44#include "utils.h"
45
46struct A {
47 virtual void f() = 0;
48};
49
50namespace {
51
52struct B : A {
53 virtual void f() {}
54};
55
56}
57
58A *mkb();
59
60#ifdef TU1
61
62A *mkb() {
63 return new B;
64}
65
66#endif // TU1
67
68#ifdef TU2
69
70int main() {
71 create_derivers<B>();
72
73 A *a = mkb();
74 break_optimization(a);
75
76 // CFI: 1
77 // NCFI: 1
78 fprintf(stderr, "1\n");
79
80 // CFI-DIAG: runtime error: control flow integrity check for type '(anonymous namespace)::B' failed during base-to-derived cast
81 // CFI-DIAG-NEXT: note: vtable is of type '{{.*}}anonymous namespace{{.*}}::B'
82 // CFI-DIAG: runtime error: control flow integrity check for type '(anonymous namespace)::B' failed during virtual call
83 // CFI-DIAG-NEXT: note: vtable is of type '{{.*}}anonymous namespace{{.*}}::B'
84 ((B *)a)->f(); // UB here
85
86 // CFI-NOT: {{^2$}}
87 // NCFI: {{^2$}}
88 fprintf(stderr, "2\n");
89}
90
91#endif // TU2
92