函数指针：物理或虚拟地址

Question

当我们得到一个函数的地址或任何对象时，它是该对象的虚拟地址或物理地址？

Answer 1

Are you asking about pointers in general?

On most operating systems, they are logical addresses.

The operating system is responsible for translating them into physical addresses through the virtual memory and paging mechanism. This is transparent to the program. That's why a misguided program "hits the boundaries" and GPFs.

On some old systems (eg, DOS), they would be physical, allowing you to overwrite stuff in other parts of memory.

Answer 2

Depends on the OS and at what level your code is running.

For a normal user-land program on a modern OS, you will get the virtual address.