diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/gwp_asan/random.cpp')
-rw-r--r-- | contrib/llvm-project/compiler-rt/lib/gwp_asan/random.cpp | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/gwp_asan/random.cpp b/contrib/llvm-project/compiler-rt/lib/gwp_asan/random.cpp deleted file mode 100644 index 2180f9204084..000000000000 --- a/contrib/llvm-project/compiler-rt/lib/gwp_asan/random.cpp +++ /dev/null @@ -1,31 +0,0 @@ -//===-- 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/common.h" - -#include <time.h> - -// Initialised to a magic constant so that an uninitialised GWP-ASan won't -// regenerate its sample counter for as long as possible. The xorshift32() -// algorithm used below results in getRandomUnsigned32(0xff82eb50) == -// 0xfffffea4. -GWP_ASAN_TLS_INITIAL_EXEC uint32_t RandomState = 0xff82eb50; - -namespace gwp_asan { -void initPRNG() { - RandomState = time(nullptr) + getThreadID(); -} - -uint32_t getRandomUnsigned32() { - RandomState ^= RandomState << 13; - RandomState ^= RandomState >> 17; - RandomState ^= RandomState << 5; - return RandomState; -} -} // namespace gwp_asan |