libc.so.6 和其他lib..so 的区别

 libc.so.6 和其他lib..so 有什么区别？


libc.so.6 可以直接执行，并输出一些版本信息。而其他so会segmentation fault.... ???

如：
songbei6@songbei6:~$ /lib/libc.so.6
GNU C Library stable release version 2.7, by Roland McGrath et al.
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 4.2.3 (Ubuntu 4.2.3-2ubuntu7).
Compiled on a Linux >>2.6.24-14-server<< system on 2008-04-04.
Available extensions:
    crypt add-on version 2.1 by Michael Glad and others
    GNU Libidn by Simon Josefsson
    Native POSIX Threads Library by Ulrich Drepper et al
    BIND-8.2.3-T5B
For bug reporting instructions, please see:
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songbei6@songbei6:~$