I get no line number known for main...
manjo@nefertiti:~/tests> gdb64 hellow1
GNU gdb 6.1
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "ppc64-suse-linux"...Using host libthread_db
library "/lib64/tls/libthread_db.so.1".
(gdb) list
1 ../sysdeps/powerpc/powerpc64/elf/start.S: No such file or
directory.
in ../sysdeps/powerpc/powerpc64/elf/start.S
(gdb) list main
No line number known for main.
(gdb)