Re: Stack information ...

[Terje Eggestad <terje.eggestad@scali.com>]

Hi Damien

The current stack size is obtainable from /proc/pid/status (VmStk). 
If you need the VM addresses you need to make a hack, but you can start
by looking at the code for generation the status:
fs/proc/array.c:task_mem()

Note that with in C (gcc) you can get a hold of a bit of info:
see info gcc
	-> C extentions -> return address -> Getting the Return or Frame
Address of a Function

You can also use asm statement in C to inspect the stack, but you need
to do assembly....
 
The latter you get from /proc/.../maps and /status, and /statm (see man
proc)
also: ps -u -p pid 
VSZ is the virtual memory size, RSS is what is resident in phys memory. 

THreads is a bit trickier.

Terje

fre, 2002-02-15 kl. 12:45 skrev Damien Touraine:
> II would like to know if there is any way in Linux to monitor the stack 
> of the current program ?
> Ie : I would like to get the adress of the first element of the stack, 
> the adress of the last one, the full size of the stack and so on.
> Is-there a doc on the web on how to manage the stack ?
> 
> Moreover, I would also like to know how to get the information on the 
> virtual memory used by the current process (the size of memory currently 
> used by the process) ...
> 
> Friendly
>     Damien TOURAINE
> 
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Terje Eggestad                  mailto:terje.eggestad@scali.no
Scali Scalable Linux Systems    http://www.scali.com

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