Modules and dll

Hi,

We could compare the modules programs of linux with dlls of Windows ?
Exist many differences between them (in relation to the functioning) ?

Thanks
Alexandre R. Pires
Brasil

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no. Windows DLLs are more like shared libraries. They are easily replaced (if inactive), and do not directly destroy the system if missing.

DLLs are connected to applications via subroutine calls (Win DLL and shared libraries), modules are usually accessed via special files, or system calls. There is no direct linking (by memory mapping the module code to the user mode application). Shared libraries are done this way.

Modules are closer to the device drivers in windows, which is what most modules support. They can also support extending the OS by adding additional capabilities - TCP/IP, IPv4, and IPv6 come to mind as some of the most used, followed by the loadable binary interpretation (elf vs a.out).

Another difference is the way they are used - modules are loaded into kernel mapping either by a kernel resident loader, or a userspace tool that does the same. Shared libraries and DLLs are just put on disk where the applications have been linked to expect them (or use an environment variable to provide a search list of places to look when the application is run.

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Jesse I Pollard, II
Email: [email protected]

Any opinions expressed are solely my own.

They are completely different. The only thing in common is that they exist as files. Under windows, DLL are like the run-time library files you see in /lib and /usr/lib. They have something in common with shared object files. Beyond that, they are very different.

Cheers,
Dick Johnson
Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips). Why is the government concerned about the lunatic fringe? Think about it.