null_deref.cpp
972 Bytes
// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
__attribute__((noinline))
// FIXME: Static symbols don't show up in PDBs. We can remove this once we start
// using DWARF.
#ifndef _MSC_VER
static
#endif
void NullDeref(int *ptr) {
// CHECK: ERROR: AddressSanitizer: {{SEGV|access-violation}} on unknown address
// CHECK: {{0x0*000.. .*pc 0x.*}}
ptr[10]++; // BOOM
// atos on Mac cannot extract the symbol name correctly. Also, on FreeBSD 9.2
// the demangling function rejects local names with 'L' in front of them.
// CHECK: {{ #0 0x.* in .*NullDeref.*null_deref.cpp}}
}
int main() {
NullDeref((int*)0);
// CHECK: {{ #1 0x.* in main.*null_deref.cpp}}
// CHECK: AddressSanitizer can not provide additional info.
}