I Rattan wrote: > > > > On Fri, 27 Nov 2009, Sanyi wrote: > >> >> Hi . >> >> I'm trying to debug my example program with GDB. My question is why GDB >> do >> not show the simbolic information. (e.g Line number and vars) > > Did you compile with -g flag? > -ishwar > > Yes I did. Finaly I found the problem. I found the solution described here http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=227097 I have installed the libc6-dbg_2.3.2.ds1-12_i386.deb package from the ftp repo and now it's working I don't know why in the package list is not mentioned http://packages.debian.org/lenny/gdb Now after i ran GDB . It looks like this server:/home/sanyi/ALP/ch01# gdb reciprocal GNU gdb 6.8-debian Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu"... (gdb) run Starting program: /home/sanyi/ALP/ch01/reciprocal Program received signal SIGSEGV, Segmentation fault. 0xb7591358 in ____strtol_l_internal () from /lib/i686/cmov/libc.so.6 (gdb) where #0 0xb7591358 in ____strtol_l_internal () from /lib/i686/cmov/libc.so.6 #1 0xb75910c0 in strtol () from /lib/i686/cmov/libc.so.6 #2 0xb758de21 in atoi () from /lib/i686/cmov/libc.so.6 #3 0x08048485 in main (argc=1, argv=0xbfde47b4) at main.c:6 (gdb) -- View this message in context: http://old.nabble.com/GDB-in-Lenny-tp26545396p26555008.html Sent from the gcc - Help mailing list archive at Nabble.com.