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 { f__anon96b387750111::B46 virtual void f() {} 47 }; 48 49 } 50 51 A *mkb(); 52 53 #ifdef TU1 54 mkb()55A *mkb() { 56 return new B; 57 } 58 59 #endif // TU1 60 61 #ifdef TU2 62 main()63int 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 94