Determing Heap and stack size of running process.

[SHAMANTHA KRISHNA K G]

Hello All,
        I want to know the *size of heap and stack for a running process* ,how
it can be done, if I* don't *see any* [stack ] *or* [heap] *in  the output
of */proc/pid/map*  and also the platform does not allow installing
*third party
freebsd utilities like valgrind.*

Thank you,
-Shamantha