RE: Startup function before main.

[<krishna.vamsi@wipro.com>]

This is aimed at learning at Learning Linux Environment and c language.
To Get to know better.

I want to create inter process communication environment where every
process is linked to a symbol table. This linking is done through
Startup routine before main. The communication is achieved by modifying
or Adding new entries to the Symbol Table.

This is very much analogous to the Linux Kernel Symbol Table Concept
where every module can use its symbol table. My effort is to create the
similar environment.


-Vamsi
-----Original Message-----
From: Uday Karan [mailto:uday.karan@gmail.com] 
Sent: Monday, March 27, 2006 5:32 PM
To: Vamsi Krishna (WT01 - Wireless Networks and Devices)
Cc: linux-c-programming@vger.kernel.org
Subject: Re: Startup function before main.


I really don't understand what is the need to have a
initialization/start up routine before main().  Main is just like any
other function except that it works as a default entry point to which
the glibc start up code makes a call to.

You can have a function main() as your start up routine that calls your
application's main functions app_main() or something similar. 
You can do all your start up code in main itself and then call
app_main().

Simulating what you are trying to achieve here should not be very
difficult.  You can tweak your environment and stuff in main().

On 3/27/06, krishna.vamsi@wipro.com <krishna.vamsi@wipro.com> wrote:
> Hi List,
>
> Before Executing the main function, a startup routine will be executed

> which will set up the initial environment for the process.
>
> This Startup routine will be supplied by the kernel and linked by the 
> Linker. My question is : Can we add one more startup routine before 
> executing the main program, if yes how??
>
>
> -Vamsi
> -
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