| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| |
| // Tests that deadlocks do not occur when an OOM occurs during symbolization. |
| |
| #include <cassert> |
| #include <cstdint> |
| #include <cstdio> |
| #include <cstdlib> |
| #include <cstring> |
| #include <unistd.h> |
| |
| #include "Bingo.h" |
| |
| volatile unsigned Sink = 0; |
| |
| // Do not inline this function. We want to trigger NEW_FUNC symbolization when |
| // libFuzzer finds this function. We use a macro to make the name as long |
| // possible, hoping to increase the time spent in symbolization and increase the |
| // chances of triggering a deadlock. |
| __attribute__((noinline)) void BINGO() { |
| // Busy work. Inserts a delay here so the deadlock is more likely to trigger. |
| for (unsigned i = 0; i < 330000000; i++) Sink += i; |
| } |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { |
| assert(Data); |
| if (Size < 3) return 0; |
| if (Data[0] == 'F' && |
| Data[1] == 'U' && |
| Data[2] == 'Z') |
| BINGO(); |
| return 0; |
| } |
| |
