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Re: macros

On Mon, Oct 08, 2001 at 12:03:19PM +0530, C.Mohanasundaram wrote:
> 1. what is the purpose of using the following macros in a module
> 
> MODULE_AUTHOR(name)
> MODULE_DESCRIPTION(desc)

I thought these two where quite descriptive.

> MOD_IN_USE

Module in use. (yes, sometimes life *is* simple)

> and can u please suggest what r the other macros that can be used inside a 
> module for betterment of the module if any.

I suppose you mean macros for modules? Well, try these:

MODULE_PARM(parameter, type)
MODULE_PARM_DESC(parameter, description)
MODULE_LICENSE(license)
EXPORT_NO_SYMBOLS

It's all pretty much explained in include/linux/module.h

> 2. In the sys_call_table only first 221 postions are occupied by the system 
> calls in i386 architecture.What is stored exactly in the remaining positions.
> What i want to know exactly is if i try to insert my own sytem call after 
> 221nd position using a loadable module, should i backup the content(i mean 
> the pointer to some function or something)and restore it when the module is 
> unloaded.

Linux doesn't support loadable syscalls.


Erik

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J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
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