isoalloc/src/iso_alloc.cpp at master · struct/isoalloc · GitHub

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// iso_alloc.cpp - A secure memory allocator

#include "iso_alloc.h"

#include "iso_alloc_internal.h"

#if CPP_SUPPORT

#if MALLOC_HOOK

#include <new>

#if !ABORT_ON_NULL

#define NEW_EXCEPT noexcept(false)

void iso_cpp_handler() {

throw std::bad_alloc();

}

extern "C" __attribute__((constructor(FIRST_CTOR + 1))) void iso_cpp(void) {

std::set_new_handler(iso_cpp_handler);

}

#else

#define NEW_EXCEPT

#endif

// These hooks override the basic new/delete

// operators to use the iso_alloc API

EXTERNAL_API FLATTEN void *operator new(size_t size) NEW_EXCEPT {

return iso_alloc(size);

}

EXTERNAL_API FLATTEN void operator delete(void *p) noexcept {

iso_free(p);

}

EXTERNAL_API FLATTEN void *operator new[](size_t size) NEW_EXCEPT {

return iso_alloc(size);

}

EXTERNAL_API FLATTEN void operator delete[](void *p) noexcept {

iso_free(p);

}

EXTERNAL_API FLATTEN void *operator new(size_t size, const std::nothrow_t &) noexcept {

return iso_alloc(size);

}

EXTERNAL_API FLATTEN void *operator new[](size_t size, const std::nothrow_t &) noexcept {

return iso_alloc(size);

}

FLATTEN void operator delete(void *ptr, size_t size) noexcept {

return iso_free_size(ptr, size);

}

FLATTEN void operator delete[](void *ptr, size_t size) noexcept {

return iso_free_size(ptr, size);

}

EXTERNAL_API FLATTEN void operator delete(void *ptr, const std::nothrow_t &) noexcept {

return iso_free(ptr);

}

EXTERNAL_API FLATTEN void operator delete[](void *ptr, const std::nothrow_t &) noexcept {

return iso_free(ptr);

}

EXTERNAL_API FLATTEN void *operator new(size_t size, std::align_val_t val) NEW_EXCEPT {

return iso_alloc(size);

}

EXTERNAL_API FLATTEN void *operator new[](size_t size, std::align_val_t val) NEW_EXCEPT {

return iso_alloc(size);

}

EXTERNAL_API FLATTEN void operator delete(void *p, std::align_val_t val) noexcept {

iso_free(p);

}

EXTERNAL_API FLATTEN void operator delete[](void *p, std::align_val_t val) noexcept {

iso_free(p);

}

EXTERNAL_API FLATTEN void *operator new(size_t size, std::align_val_t val, std::nothrow_t &) noexcept {

return iso_alloc(size);

}

EXTERNAL_API FLATTEN void *operator new[](size_t size, std::align_val_t val, std::nothrow_t &) noexcept {

return iso_alloc(size);

}

EXTERNAL_API FLATTEN void operator delete(void *p, std::align_val_t val, std::nothrow_t &) noexcept {

iso_free(p);

}

EXTERNAL_API FLATTEN void operator delete[](void *p, std::align_val_t val, std::nothrow_t &) noexcept {

iso_free(p);

}

#endif

isoalloc/src/iso_alloc.cpp at master · struct/isoalloc · GitHub

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