Can I run Linux code (32bit machine) in Linux (64bit machine)

[santosdas]

Hi,

I've c source code developed in 32-bit linux machine. Can I run it in 64-bit linux machine.

Thank you.
Santos

[Grunt]

That depends on the code.

[Salem]

Providing the author did the job properly, all you need to do is recompile it on the target machine.

[Ancient Dragon]

unlike MS-Windows, not all *nix machines were created equally. A 32-bit program compiled on one *nix computer may or may not run on another 32-bit *nix computer, unless the hardware is identical. There are many different flavors of linux/unix computers and they run many different chip sets (or whatever they are called) (80x88, risk, etc). Programs have to be recompiled for each of these different machine types.

[John A]

Yes, generally you must recompile code for different archs/non-standard kernels in Linux.

[offtopic]Mac OS X Leopard has a special backwards-compatibility regarding 64 and 32 bit apps[/offtopic]

[Rashakil Fol]

In some distributions you can, if you're on the AMD64, i.e. x86-64 architecture, since it's a superset of x86 -- there are issues that come up, like the fact that you need thirty-two-bit libraries /and/ sixty-four-bit libraries installed on the system.