blob: 90493da7e03858520d53e87c78e1180040a83235 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
//===-- random.cpp ----------------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "gwp_asan/random.h"
#include "gwp_asan/guarded_pool_allocator.h"
#include <time.h>
namespace gwp_asan {
uint32_t getRandomUnsigned32() {
thread_local uint32_t RandomState =
time(nullptr) + GuardedPoolAllocator::getThreadID();
RandomState ^= RandomState << 13;
RandomState ^= RandomState >> 17;
RandomState ^= RandomState << 5;
return RandomState;
}
} // namespace gwp_asan
|
