1 //===-- scudo_new_delete.cpp ------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 /// Interceptors for operators new and delete.
12 //===----------------------------------------------------------------------===//
14 #include "scudo_allocator.h"
16 #include "interception/interception.h"
20 using namespace __scudo;
22 #define CXX_OPERATOR_ATTRIBUTE INTERCEPTOR_ATTRIBUTE
24 // Fake std::nothrow_t to avoid including <new>.
29 // TODO(alekseys): throw std::bad_alloc instead of dying on OOM.
30 CXX_OPERATOR_ATTRIBUTE
31 void *operator new(size_t size) {
32 void *res = scudoMalloc(size, FromNew);
33 if (UNLIKELY(!res)) DieOnFailure::OnOOM();
36 CXX_OPERATOR_ATTRIBUTE
37 void *operator new[](size_t size) {
38 void *res = scudoMalloc(size, FromNewArray);
39 if (UNLIKELY(!res)) DieOnFailure::OnOOM();
42 CXX_OPERATOR_ATTRIBUTE
43 void *operator new(size_t size, std::nothrow_t const&) {
44 return scudoMalloc(size, FromNew);
46 CXX_OPERATOR_ATTRIBUTE
47 void *operator new[](size_t size, std::nothrow_t const&) {
48 return scudoMalloc(size, FromNewArray);
51 CXX_OPERATOR_ATTRIBUTE
52 void operator delete(void *ptr) NOEXCEPT {
53 return scudoFree(ptr, FromNew);
55 CXX_OPERATOR_ATTRIBUTE
56 void operator delete[](void *ptr) NOEXCEPT {
57 return scudoFree(ptr, FromNewArray);
59 CXX_OPERATOR_ATTRIBUTE
60 void operator delete(void *ptr, std::nothrow_t const&) NOEXCEPT {
61 return scudoFree(ptr, FromNew);
63 CXX_OPERATOR_ATTRIBUTE
64 void operator delete[](void *ptr, std::nothrow_t const&) NOEXCEPT {
65 return scudoFree(ptr, FromNewArray);
67 CXX_OPERATOR_ATTRIBUTE
68 void operator delete(void *ptr, size_t size) NOEXCEPT {
69 scudoSizedFree(ptr, size, FromNew);
71 CXX_OPERATOR_ATTRIBUTE
72 void operator delete[](void *ptr, size_t size) NOEXCEPT {
73 scudoSizedFree(ptr, size, FromNewArray);