llvm/compiler-rt/lib/msan/msan_new_delete.cpp

//===-- msan_new_delete.cpp -----------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file is a part of MemorySanitizer.
//
// Interceptors for operators new and delete.
//===----------------------------------------------------------------------===//

#include "msan.h"
#include "interception/interception.h"
#include "sanitizer_common/sanitizer_allocator.h"
#include "sanitizer_common/sanitizer_allocator_report.h"

#if MSAN_REPLACE_OPERATORS_NEW_AND_DELETE

#include <stddef.h>

usingnamespace__msan;

// Fake std::nothrow_t and std::align_val_t to avoid including <new>.
namespace std {
  struct nothrow_t { … };
  enum class align_val_t: size_t { … };
}  // namespace std


// TODO(alekseys): throw std::bad_alloc instead of dying on OOM.
#define OPERATOR_NEW_BODY(nothrow) …
#define OPERATOR_NEW_BODY_ALIGN(nothrow) …

INTERCEPTOR_ATTRIBUTE
void *operator new(size_t size) { … }
INTERCEPTOR_ATTRIBUTE
void *operator new[](size_t size) { … }
INTERCEPTOR_ATTRIBUTE
void *operator new(size_t size, std::nothrow_t const&) { … }
INTERCEPTOR_ATTRIBUTE
void *operator new[](size_t size, std::nothrow_t const&) { … }
INTERCEPTOR_ATTRIBUTE
void *operator new(size_t size, std::align_val_t align)
{ … }
INTERCEPTOR_ATTRIBUTE
void *operator new[](size_t size, std::align_val_t align)
{ … }
INTERCEPTOR_ATTRIBUTE
void *operator new(size_t size, std::align_val_t align, std::nothrow_t const&)
{ … }
INTERCEPTOR_ATTRIBUTE
void *operator new[](size_t size, std::align_val_t align, std::nothrow_t const&)
{ … }

#define OPERATOR_DELETE_BODY …

INTERCEPTOR_ATTRIBUTE
void operator delete(void *ptr) NOEXCEPT { … }
INTERCEPTOR_ATTRIBUTE
void operator delete[](void *ptr) NOEXCEPT { … }
INTERCEPTOR_ATTRIBUTE
void operator delete(void *ptr, std::nothrow_t const&) { … }
INTERCEPTOR_ATTRIBUTE
void operator delete[](void *ptr, std::nothrow_t const&) { … }
INTERCEPTOR_ATTRIBUTE
void operator delete(void *ptr, size_t size) NOEXCEPT { … }
INTERCEPTOR_ATTRIBUTE
void operator delete[](void *ptr, size_t size) NOEXCEPT
{ … }
INTERCEPTOR_ATTRIBUTE
void operator delete(void *ptr, std::align_val_t align) NOEXCEPT
{ … }
INTERCEPTOR_ATTRIBUTE
void operator delete[](void *ptr, std::align_val_t align) NOEXCEPT
{ … }
INTERCEPTOR_ATTRIBUTE
void operator delete(void *ptr, std::align_val_t align, std::nothrow_t const&)
{ … }
INTERCEPTOR_ATTRIBUTE
void operator delete[](void *ptr, std::align_val_t align, std::nothrow_t const&)
{ … }
INTERCEPTOR_ATTRIBUTE
void operator delete(void *ptr, size_t size, std::align_val_t align) NOEXCEPT
{ … }
INTERCEPTOR_ATTRIBUTE
void operator delete[](void *ptr, size_t size, std::align_val_t align) NOEXCEPT
{ … }


#endif // MSAN_REPLACE_OPERATORS_NEW_AND_DELETE