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1//===-- nsan_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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef NSAN_ALLOCATOR_H10#define NSAN_ALLOCATOR_H11 12#include "sanitizer_common/sanitizer_common.h"13 14namespace __nsan {15 16struct NsanThreadLocalMallocStorage {17 // Allocator cache contains atomic_uint64_t which must be 8-byte aligned.18 alignas(8) uptr allocator_cache[96 * (512 * 8 + 16)]; // Opaque.19 void Init();20 void CommitBack();21 22private:23 // These objects are allocated via mmap() and are zero-initialized.24 NsanThreadLocalMallocStorage() {}25};26 27void NsanAllocatorInit();28void NsanDeallocate(void *ptr);29 30void *nsan_malloc(uptr size);31void *nsan_calloc(uptr nmemb, uptr size);32void *nsan_realloc(void *ptr, uptr size);33void *nsan_reallocarray(void *ptr, uptr nmemb, uptr size);34void *nsan_valloc(uptr size);35void *nsan_pvalloc(uptr size);36void *nsan_aligned_alloc(uptr alignment, uptr size);37void *nsan_memalign(uptr alignment, uptr size);38int nsan_posix_memalign(void **memptr, uptr alignment, uptr size);39 40} // namespace __nsan41#endif // NSAN_ALLOCATOR_H42