OOP vs procedural in run-time

Question

I have very simple question I cant find answer anywhere on the internet.

So, my question is, in procedural programming, code is in code section, which goes into Read Only memory area. Variables are either on stack or heap.

But OOP says that object are created in memory. So, does it mean even functions are written into R/W memory area?

And, does Os have to have some inbuilt OOP programs support? For example if OS doesent allowed to read instruction outside Read only code section. Thanks.

Answer 1

Generally, both OOP and procedural programming are abstractions which exist only at the source-code level. Once a program is compiled into executable machine-code, these abstractions cease to exist. So whether or not a particular language is OOP or procedural has no bearing on what regions of memory it uses, or where instructions are placed during execution.

The OS itself usually doesn't know or care whether a particular executable was written in an OOP or procedural language. It only cares that the executable uses binary op-codes compatible with its native instruction set, and that the executable has an ABI (binary interface) that it understands.