Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 1 | // RUN: %clangxx_cfi -o %t1 %s |
| 2 | // RUN: %expect_crash %t1 2>&1 | FileCheck --check-prefix=CFI %s |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 3 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 4 | // RUN: %clangxx_cfi -DB32 -o %t2 %s |
| 5 | // RUN: %expect_crash %t2 2>&1 | FileCheck --check-prefix=CFI %s |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 6 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 7 | // RUN: %clangxx_cfi -DB64 -o %t3 %s |
| 8 | // RUN: %expect_crash %t3 2>&1 | FileCheck --check-prefix=CFI %s |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 9 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 10 | // RUN: %clangxx_cfi -DBM -o %t4 %s |
| 11 | // RUN: %expect_crash %t4 2>&1 | FileCheck --check-prefix=CFI %s |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 12 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 13 | // RUN: %clangxx -o %t5 %s |
| 14 | // RUN: %t5 2>&1 | FileCheck --check-prefix=NCFI %s |
| 15 | |
| 16 | // RUN: %clangxx_cfi_diag -o %t6 %s |
| 17 | // RUN: %t6 2>&1 | FileCheck --check-prefix=CFI-DIAG %s |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 18 | |
| 19 | // Tests that the CFI mechanism crashes the program when making a non-virtual |
| 20 | // call to an object of the wrong class, by casting a pointer to such an object |
| 21 | // and attempting to make a call through it. |
| 22 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 23 | // REQUIRES: cxxabi |
| 24 | |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 25 | #include <stdio.h> |
| 26 | #include "utils.h" |
| 27 | |
| 28 | struct A { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 29 | virtual void v(); |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 30 | }; |
| 31 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 32 | void A::v() {} |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 33 | |
| 34 | struct B { |
| 35 | void f(); |
| 36 | virtual void g(); |
| 37 | }; |
| 38 | |
| 39 | void B::f() {} |
| 40 | void B::g() {} |
| 41 | |
| 42 | int main() { |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 43 | create_derivers<B>(); |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 44 | |
| 45 | A *a = new A; |
| 46 | break_optimization(a); |
| 47 | |
| 48 | // CFI: 1 |
| 49 | // NCFI: 1 |
| 50 | fprintf(stderr, "1\n"); |
| 51 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 52 | // CFI-DIAG: runtime error: control flow integrity check for type 'B' failed during non-virtual call |
| 53 | // CFI-DIAG-NEXT: note: vtable is of type '{{(struct )?}}A' |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 54 | ((B *)a)->f(); // UB here |
| 55 | |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 56 | // CFI-NOT: {{^2$}} |
| 57 | // NCFI: {{^2$}} |
Pirama Arumuga Nainar | 259f706 | 2015-05-06 11:49:53 -0700 | [diff] [blame] | 58 | fprintf(stderr, "2\n"); |
| 59 | } |