Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 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 | |
| 4 | typedef void void_f(); |
| 5 | int main() { |
| 6 | void_f *func = (void_f *)0x4; |
| 7 | func(); |
| 8 | // x86 reports the SEGV with both address=4 and pc=4. |
Stephen Hines | 86277eb | 2015-03-23 12:06:32 -0700 | [diff] [blame] | 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]}} |
Stephen Hines | 6d18623 | 2014-11-26 17:56:19 -0800 | [diff] [blame] | 15 | return 0; |
| 16 | } |