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1 //===-- msan_allocator.h ----------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file is a part of MemorySanitizer.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef MSAN_ALLOCATOR_H
15 #define MSAN_ALLOCATOR_H
16 
17 #include "sanitizer_common/sanitizer_common.h"
18 
19 namespace __msan {
20 
21 struct MsanThreadLocalMallocStorage {
22   uptr quarantine_cache[16];
23   // Allocator cache contains atomic_uint64_t which must be 8-byte aligned.
24   ALIGNED(8) uptr allocator_cache[96 * (512 * 8 + 16)];  // Opaque.
25   void CommitBack();
26 
27  private:
28   // These objects are allocated via mmap() and are zero-initialized.
MsanThreadLocalMallocStorageMsanThreadLocalMallocStorage29   MsanThreadLocalMallocStorage() {}
30 };
31 
32 } // namespace __msan
33 #endif // MSAN_ALLOCATOR_H
34