How to use Ptrace on Linux to print Call Stack of Other Processes of C++.

Question

Hi,

i am working on an application which needs call stack of all executing processes on Linux. i am trying to use ptrace but not able to go ahead with it because the steps i need to follow in my code are not clear to me.

i also tryied backtrace, but its use is limmited to current process.

could some one guide me on the same.

Thanks, Sandeep