Trigger function on shared module init

[rayuthar@gmail.com]

Hi,

I need to trigger a function, whenever my shared module (.so) gets
loaded and before its been used by application.

Any suggestions?

Thanks
Rayuthar

[Walter Roberson]

Re: Trigger function on shared module init

In article <809e9371-bad4-4e46-9e06-cfc5af3272da@c6 5g2000hsa.googl egroups.com>,
<rayuthar@gmail .comwrote:

>I need to trigger a function, whenever my shared module (.so) gets
>loaded and before its been used by application.

Please consult a newsgroup appropriate for the operating system
and toolchain that you are using. The C language itself does not
know anything about shared modules or dynamic loading.

[OT]

In SGI IRIX, this would be handled by the 'ld' option -init
--
"The slogans of an inadequate criticism peddle ideas to fashion"
-- Walter Benjamin

[Antoninus Twink]

Re: Trigger function on shared module init

On 17 Apr 2008 at 5:23, Walter Roberson wrote:

In article <809e9371-bad4-4e46-9e06-cfc5af3272da@c6 5g2000hsa.googl egroups.com>,
<rayuthar@gmail .comwrote:
>

>>I need to trigger a function, whenever my shared module (.so) gets
>>loaded and before its been used by application.

>
In SGI IRIX, this would be handled by the 'ld' option -init

On GNU at least, you can also just include a function called _init, and
the linker will use that without needing a special option.

[CBFalconer]

Re: Trigger function on shared module init

rayuthar@gmail. com wrote:

>
I need to trigger a function, whenever my shared module (.so) gets
loaded and before its been used by application.

Ignoring off-topic things such as .so, consider the following:

void checkinit(void) {
static int initdone = 0;

if (initdone) return;
else {
initdone = 1;
/* whatever initialization is needed */
}
return;
}

--
[mail]: Chuck F (cbfalconer at maineline dot net)
[page]: <http://cbfalconer.home .att.net>
Try the download section.


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