compiler-rt/lib/dfsan/dfsan_allocator.h

   1 //===-- dfsan_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 DataflowSanitizer.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef DFSAN_ALLOCATOR_H
  14 #define DFSAN_ALLOCATOR_H
  15
  16 #include "sanitizer_common/sanitizer_common.h"
  17
  18 namespace __dfsan {
  19
  20 struct DFsanThreadLocalMallocStorage {
  21   ALIGNED(8) uptr allocator_cache[96 * (512 * 8 + 16)];  // Opaque.
  22   void CommitBack();
  23
  24  private:
  25   // These objects are allocated via mmap() and are zero-initialized.
  26   DFsanThreadLocalMallocStorage() {}
  27 };
  28
  29 }  // namespace __dfsan
  30 #endif  // DFSAN_ALLOCATOR_H