1// Check that ASan correctly detects SEGV on the zero page.
2// RUN: %clangxx_asan %s -o %t && not %run %t 2>&1 | FileCheck %s
3
4typedef void void_f();
5int main() {
6  void_f *func = (void_f *)0x4;
7  func();
8  // x86 reports the SEGV with both address=4 and pc=4.
9  // On PowerPC64 ELFv1, the pointer is taken to be a function-descriptor
10  // pointer out of which three 64-bit quantities are read. This will SEGV, but
11  // the compiler is free to choose the order. As a result, the address is
12  // either 0x4, 0xc or 0x14. The pc is still in main() because it has not
13  // actually made the call when the faulting access occurs.
14  // CHECK: {{AddressSanitizer: SEGV.*(address|pc) 0x0*[4c]}}
15  return 0;
16}
17