Direct manipulation of C call stack

Asked Aug 09 '17 at 14:42

Active Aug 09 '17 at 14:42

Viewed 91 times

Is it possible to directly access the call stack in C?

For example, could I do something like

pushInt(5);
pushInt(6);
printf("%d %d\n");

Although the paramaters (5 and 6) are not in the printf call, in theory I have pushed them on the stack.

Is this kind of trickery available? Is it portable?

asked Aug 09 '17 at 14:42

Marco Merlini

1

that's the most portable way to do useful things ;) – Antti Haapala -- Слава Україні Aug 09 '17 at 14:46
2

Notice also that on many architectures arguments are partially passed in registers, so there is no stack you could modify... – Antti Haapala -- Слава Україні Aug 09 '17 at 14:48
@Mahkoe `Is this kind of trickery available?` of course it is. Use inline assembly. You can do any trick you want. Is it portable - I think you should answer yourself if you consider it portable – 0___________ Aug 09 '17 at 15:02
*C call stack* is a non term! – Ajay Brahmakshatriya Aug 09 '17 at 15:11

0 Answers0