llvm/compiler-rt/lib/dfsan/dfsan_new_delete.cpp

//===-- dfsan_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 DataflowSanitizer.
//
// Interceptors for operators new and delete.
//===----------------------------------------------------------------------===//

#include <stddef.h>

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

usingnamespace__dfsan;

// 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 { … }