Procedure bounds

[Sumesh UdayaKumaran]

Hello everyone.
     I am trying to find the starting address and end address of a function 
from the elf executable
using BFD functions. I could find the start address as section->vma + 
corresponding symboltable entry->value. Can anyone tell me how I can find 
the end address of the procedure or starting address
of the next procedure.

I would appreciate any help
thanks
Sumesh