GDB调试提示找不到文件
[root@localhost pacp_server]# gdb ./pcap
GNU gdb (GDB) Red Hat Enterprise Linux (7.2-75.el6)
Copyright (C) 2010 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 "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /mnt/hgfs/virtual_machine/pacp_server/pcap...done.
(gdb) break main.cc:43
No source file named main.cc.
Make breakpoint pending on future shared library load? (y or [n])
请问这个是怎么回事啊,网上的方法我试了也不行,请求高手指教!