Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 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 %t %t1.o %t2.o |
| 4 | // RUN: not --crash %t 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 %t %t1.o %t2.o |
| 9 | // RUN: not --crash %t 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 %t %t1.o %t2.o |
| 14 | // RUN: not --crash %t 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 %t %t1.o %t2.o |
| 19 | // RUN: not --crash %t 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 %t %t1.o %t2.o |
| 24 | // RUN: %t 2>&1 | FileCheck --check-prefix=NCFI %s |
| 25 | |
| 26 | // Tests that the CFI mechanism treats classes in the anonymous namespace in |
| 27 | // different translation units as having distinct identities. This is done by |
| 28 | // compiling two translation units TU1 and TU2 containing a class named B in an |
| 29 | // anonymous namespace, and testing that the program crashes if TU2 attempts to |
| 30 | // use a TU1 B as a TU2 B. |
| 31 | |
| 32 | // FIXME: This test should not require that the paths supplied to the compiler |
| 33 | // are different. It currently does so because bitset names have global scope |
| 34 | // so we have to mangle the file path into the bitset name. |
| 35 | |
| 36 | #include <stdio.h> |
| 37 | #include "utils.h" |
| 38 | |
| 39 | struct A { |
| 40 | virtual void f() = 0; |
| 41 | }; |
| 42 | |
| 43 | namespace { |
| 44 | |
| 45 | struct B : A { |
| 46 | virtual void f() {} |
| 47 | }; |
| 48 | |
| 49 | } |
| 50 | |
| 51 | A *mkb(); |
| 52 | |
| 53 | #ifdef TU1 |
| 54 | |
| 55 | A *mkb() { |
| 56 | return new B; |
| 57 | } |
| 58 | |
| 59 | #endif // TU1 |
| 60 | |
| 61 | #ifdef TU2 |
| 62 | |
| 63 | int main() { |
| 64 | #ifdef B32 |
| 65 | break_optimization(new Deriver<B, 0>); |
| 66 | #endif |
| 67 | |
| 68 | #ifdef B64 |
| 69 | break_optimization(new Deriver<B, 0>); |
| 70 | break_optimization(new Deriver<B, 1>); |
| 71 | #endif |
| 72 | |
| 73 | #ifdef BM |
| 74 | break_optimization(new Deriver<B, 0>); |
| 75 | break_optimization(new Deriver<B, 1>); |
| 76 | break_optimization(new Deriver<B, 2>); |
| 77 | #endif |
| 78 | |
| 79 | A *a = mkb(); |
| 80 | break_optimization(a); |
| 81 | |
| 82 | // CFI: 1 |
| 83 | // NCFI: 1 |
| 84 | fprintf(stderr, "1\n"); |
| 85 | |
| 86 | ((B *)a)->f(); // UB here |
| 87 | |
| 88 | // CFI-NOT: 2 |
| 89 | // NCFI: 2 |
| 90 | fprintf(stderr, "2\n"); |
| 91 | } |
| 92 | |
| 93 | #endif // TU2 |