174ad3115SFilipe Cabecinhas // RUN: %clangxx_asan %s -o %t 274ad3115SFilipe Cabecinhas // RUN: not %run %t 0 2>&1 | FileCheck %s 374ad3115SFilipe Cabecinhas // RUN: not %run %t n 2>&1 | FileCheck %s -check-prefix=CHECK -check-prefix=NON_EXEC 474ad3115SFilipe Cabecinhas 5d92f3982SKamil Rytarowski // Not every OS lists every memory region in MemoryMappingLayout. 6d92f3982SKamil Rytarowski // REQUIRES: linux || freebsd || netbsd 774ad3115SFilipe Cabecinhas 8*f4556f63SUlrich Weigand // We don't have non-execute protection on s390 processors before z14. 9*f4556f63SUlrich Weigand // UNSUPPORTED: s390 10*f4556f63SUlrich Weigand 1174ad3115SFilipe Cabecinhas #include <assert.h> 1274ad3115SFilipe Cabecinhas 1374ad3115SFilipe Cabecinhas typedef void void_f(); 1474ad3115SFilipe Cabecinhas int main(int argc, char **argv) { 1574ad3115SFilipe Cabecinhas char *array = new char[42]; 1674ad3115SFilipe Cabecinhas void_f *func; 1774ad3115SFilipe Cabecinhas assert(argc > 1); 1874ad3115SFilipe Cabecinhas if (argv[1][0] == '0') { 1974ad3115SFilipe Cabecinhas func = (void_f *)0x04; 2074ad3115SFilipe Cabecinhas } else { 2174ad3115SFilipe Cabecinhas assert(argv[1][0] == 'n'); 2274ad3115SFilipe Cabecinhas func = (void_f *)array; 2374ad3115SFilipe Cabecinhas } 2474ad3115SFilipe Cabecinhas 2574ad3115SFilipe Cabecinhas func(); 2674ad3115SFilipe Cabecinhas // x86 reports the SEGV with both address=X and pc=X. 2774ad3115SFilipe Cabecinhas // On PowerPC64 ELFv1, the pointer is taken to be a function-descriptor 2874ad3115SFilipe Cabecinhas // pointer out of which three 64-bit quantities are read. This will SEGV, but 2974ad3115SFilipe Cabecinhas // the compiler is free to choose the order. As a result, the address is 3074ad3115SFilipe Cabecinhas // either X, X+0x8 or X+0x10. The pc is still in main() because it has not 3174ad3115SFilipe Cabecinhas // actually made the call when the faulting access occurs. 3274ad3115SFilipe Cabecinhas // CHECK: DEADLYSIGNAL 3374ad3115SFilipe Cabecinhas // CHECK: {{AddressSanitizer: (SEGV|access-violation).*(address|pc) }} 3474ad3115SFilipe Cabecinhas // NON_EXEC: PC is at a non-executable region. Maybe a wild jump? 3574ad3115SFilipe Cabecinhas return 0; 3674ad3115SFilipe Cabecinhas } 37