Hi


Can anyone help me ,how to write a value to a specific memory location in C language and how to access the same value ?
I am trying the same on fedora linux and i am trying to write the value to the 32-bit adress.

Please share if you have an example code of the same..for better understanding purpose..

Thanks in advance..........BYE

Well, I guess like with every programming question here I'd have to ask what have you tried so far. But, then I also have to ask why you would ever attempt this, knowing fully well that the result will be a segmentation fault ...

You should explain why you want to do that.

You have asked the kind of question that usually implies a more fundamental misunderstanding. So a direct answer to the question would be useless.

Also, are you aware of the difference between physical "memory locations" and virtual "memory locations"?

Almost everything any program does in Linux deals with virtual locations. It is trivial to access (read or write) a specific virtual location in C. But there is almost no possibility that you have a constructive purpose in doing so (as opposed to thinking you want to do so because you misunderstand something more fundamental).

A valid reason to want to access a specific physical location is also unlikely, but not as unlikely. It is harder to access a specific physical location. You need root privileges and then use either the /proc filesystem or other methods of requesting the access through the OS. To give any constructive instructions, we would need to know what/why you actually want to access.