mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +01:00
8883497952
Summary: Implements https://github.com/google/sanitizers/issues/835. Flush stdout before exiting in test cases. Since the atexit hook is used for exit reports, pending prints to stdout can be lost if they aren't flushed before calling exit(). Expect tests to have non-zero exit code if exit() is called. Reviewers: vitalybuka, kcc Reviewed By: kcc Subscribers: eraman, llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D35602 llvm-svn: 308669
32 lines
892 B
C++
32 lines
892 B
C++
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
|
|
// Simple test for a fuzzer. The fuzzer must find repeated bytes.
|
|
#include <assert.h>
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
#include <cstdlib>
|
|
#include <iostream>
|
|
#include <ostream>
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
|
|
assert(Data);
|
|
// Looking for AAAAAAAAAAAAAAAAAAAAAA or some such.
|
|
size_t CurA = 0, MaxA = 0;
|
|
for (size_t i = 0; i < Size; i++) {
|
|
// Make sure there are no conditionals in the loop so that
|
|
// coverage can't help the fuzzer.
|
|
int EQ = Data[i] == 'A';
|
|
CurA = EQ * (CurA + 1);
|
|
int GT = CurA > MaxA;
|
|
MaxA = GT * CurA + (!GT) * MaxA;
|
|
}
|
|
if (MaxA >= 20) {
|
|
std::cout << "BINGO; Found the target (Max: " << MaxA << "), exiting\n"
|
|
<< std::flush;
|
|
exit(0);
|
|
}
|
|
return 0;
|
|
}
|
|
|