posix/malloc_debug/heap.cpp

1723 	size_t areaSize = ROUNDUP(size + sizeof(area_allocation_info) + B_PAGE_SIZE,
1725 	if (areaSize < size) {
1732 		B_ANY_ADDRESS, areaSize, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA);
1739 	if (mprotect((void *)((addr_t)address + areaSize - B_PAGE_SIZE),
1750 	info->size = areaSize;
1757 	address = (void *)((addr_t)address + areaSize - B_PAGE_SIZE - size);
1845 		size_t areaSize = ROUNDUP(size + sizeof(area_allocation_info)
1847 		if (areaSize < size) {
1854 			B_ANY_ADDRESS, areaSize, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA);
1865 		info->size = areaSize;
1874 			ASSERT((addr_t)address + size - 1 < (addr_t)info + areaSize - 1);