forked from OSchip/llvm-project
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
//===-- scudo_new_delete.cpp ------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// Interceptors for operators new and delete.
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///
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//===----------------------------------------------------------------------===//
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#include "scudo_allocator.h"
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#include "interception/interception.h"
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#include <cstddef>
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using namespace __scudo;
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#define CXX_OPERATOR_ATTRIBUTE INTERCEPTOR_ATTRIBUTE
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// Fake std::nothrow_t to avoid including <new>.
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namespace std {
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struct nothrow_t {};
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} // namespace std
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// TODO(alekseys): throw std::bad_alloc instead of dying on OOM.
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CXX_OPERATOR_ATTRIBUTE
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void *operator new(size_t size) {
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void *res = scudoMalloc(size, FromNew);
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if (UNLIKELY(!res)) DieOnFailure::OnOOM();
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return res;
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}
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CXX_OPERATOR_ATTRIBUTE
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void *operator new[](size_t size) {
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void *res = scudoMalloc(size, FromNewArray);
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if (UNLIKELY(!res)) DieOnFailure::OnOOM();
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return res;
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}
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CXX_OPERATOR_ATTRIBUTE
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void *operator new(size_t size, std::nothrow_t const&) {
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return scudoMalloc(size, FromNew);
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}
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CXX_OPERATOR_ATTRIBUTE
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void *operator new[](size_t size, std::nothrow_t const&) {
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return scudoMalloc(size, FromNewArray);
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}
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CXX_OPERATOR_ATTRIBUTE
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void operator delete(void *ptr) NOEXCEPT {
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return scudoFree(ptr, FromNew);
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}
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CXX_OPERATOR_ATTRIBUTE
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void operator delete[](void *ptr) NOEXCEPT {
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return scudoFree(ptr, FromNewArray);
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}
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CXX_OPERATOR_ATTRIBUTE
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void operator delete(void *ptr, std::nothrow_t const&) NOEXCEPT {
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return scudoFree(ptr, FromNew);
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}
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CXX_OPERATOR_ATTRIBUTE
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void operator delete[](void *ptr, std::nothrow_t const&) NOEXCEPT {
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return scudoFree(ptr, FromNewArray);
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}
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CXX_OPERATOR_ATTRIBUTE
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void operator delete(void *ptr, size_t size) NOEXCEPT {
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scudoSizedFree(ptr, size, FromNew);
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}
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CXX_OPERATOR_ATTRIBUTE
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void operator delete[](void *ptr, size_t size) NOEXCEPT {
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scudoSizedFree(ptr, size, FromNewArray);
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}
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