HI everyone

i have compiled the FS with  CFLAGS="-g -ggdb -finstrument-functions"  and MOD_CFLAGS="-g -ggdb -finstrument-functions", and it works done.
but the problem comes when i use addr2line command to translate some function address to its name. 
This is the detail:
$ addr2line -e freeswitch -f -a 0x2a955d3f8a
0x0000002a955d3f8a
??
??:0

Note: 0x2a955d3f8a is some function's address

I think that addr2line can NOT find freeswitch's symbols, but where it is, anyone any advice? thanks for your reply!

yours simon