Hi,

This question might sound weird but its a long story why I want to do
this.

I sometimes run my app with a profiling agent 'pre-loaded'. For
example:

$ env LD_PRELOAD=profiling_agent.so my_app

My question: Inside 'my_app', I want to know if 'profiling_agent.so'
is running/pre-loaded or not. Can I find out via the /proc interface?


Regards
Rajesh

Rajesh <rajesh.radhakrishnan******.com> writes:

> Hi,
>
> This question might sound weird but its a long story why I want to do
> this.
>
> I sometimes run my app with a profiling agent 'pre-loaded'. For
> example:
>
> $ env LD_PRELOAD=profiling_agent.so my_app
>
> My question: Inside 'my_app', I want to know if 'profiling_agent.so'
> is running/pre-loaded or not. Can I find out via the /proc interface?

On Linux, /proc/self/maps should contain this information.

--
Måns Rullgård
mans@mansr.com

In article <d52e576d-298e-425c-870d-6aab595923bc@c58g2000hsc.googlegroups.com>,
Rajesh <rajesh.radhakrishnan******.com> writes:
> Hi,
>
> This question might sound weird but its a long story why I want to do
> this.
>
> I sometimes run my app with a profiling agent 'pre-loaded'. For
> example:
>
> $ env LD_PRELOAD=profiling_agent.so my_app
>
> My question: Inside 'my_app', I want to know if 'profiling_agent.so'
> is running/pre-loaded or not. Can I find out via the /proc interface?

[Solaris]

Much easier to just ask the dynamic linker if it loaded it...

if (dlopen("profiling_agent.so", RTLD_NOLOAD) != NULL) {
/* profiling library is already loaded */
}

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]