1 //===-- msan_allocator.h ----------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of MemorySanitizer.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef MSAN_ALLOCATOR_H
14 #define MSAN_ALLOCATOR_H
15 
16 #include "sanitizer_common/sanitizer_common.h"
17 
18 namespace __msan {
19 
20 struct MsanThreadLocalMallocStorage {
21   // Allocator cache contains atomic_uint64_t which must be 8-byte aligned.
22   ALIGNED(8) uptr allocator_cache[96 * (512 * 8 + 16)];  // Opaque.
23   void CommitBack();
24 
25  private:
26   // These objects are allocated via mmap() and are zero-initialized.
27   MsanThreadLocalMallocStorage() {}
28 };
29 
30 } // namespace __msan
31 #endif // MSAN_ALLOCATOR_H
32