llvm/compiler-rt/lib/fuzzer/FuzzerExtraCounters.cpp

//===- FuzzerExtraCounters.cpp - Extra coverage counters ------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Extra coverage counters defined by user code.
//===----------------------------------------------------------------------===//

#include "FuzzerPlatform.h"
#include <cstdint>

#if LIBFUZZER_LINUX || LIBFUZZER_NETBSD || LIBFUZZER_FREEBSD ||                \
    LIBFUZZER_FUCHSIA || LIBFUZZER_EMSCRIPTEN
__attribute__((weak)) extern uint8_t __start___libfuzzer_extra_counters;
__attribute__((weak)) extern uint8_t __stop___libfuzzer_extra_counters;

namespace fuzzer {
uint8_t *ExtraCountersBegin() { … }
uint8_t *ExtraCountersEnd() { … }
ATTRIBUTE_NO_SANITIZE_ALL
void ClearExtraCounters() { … }

}  // namespace fuzzer

#endif