# cat /proc/882/maps
00400000-00401000 r-xp 00000000 1f:04 4195720    /bin/debug             代码段：4k
10000000-10001000 rw-p 00001000 1f:04 4195720    /bin/debug             数据段：4k
10001000-10004000 rwxp 10001000 00:00 0                                    heap：  12k
2aaa8000-2aaae000 r-xp 00000000 1f:04 831        /lib/ld-uClibc-0.9.27.so  代码：  24k
2aaae000-2aaaf000 rw-p 2aaae000 00:00 0                                     bss    4k
2aaed000-2aaee000 rw-p 00005000 1f:04 831        /lib/ld-uClibc-0.9.27.so  数据：  4k
2aaee000-2aaf1000 r-xp 00000000 1f:04 1357       /lib/libcommfun.so        代码：  12k
2aaf1000-2ab30000 ---p 2aaf1000 00:00 0                                            252k
2ab30000-2ab31000 rw-p 00002000 1f:04 1357       /lib/libcommfun.so        数据：4k
2ab31000-2ab4b000 r-xp 00000000 1f:04 802        /lib/libsys.so            代码：104k
2ab4b000-2ab8a000 ---p 2ab4b000 00:00 0                                          252k
2ab8a000-2ab8c000 rw-p 00019000 1f:04 802        /lib/libsys.so            数据：8k
2ab8c000-2ab90000 rw-p 2ab8c000 00:00 0                                          16k
2ab90000-2ab9e000 r-xp 00000000 1f:04 1165       /lib/libpthread-0.9.27.so  代码：56k
2ab9e000-2abdd000 ---p 2ab9e000 00:00 0                                           252k
2abdd000-2abe2000 rw-p 0000d000 1f:04 1165       /lib/libpthread-0.9.27.so  数据：20k
2abe2000-2abe4000 rw-p 2abe2000 00:00 0                                            8K
2abe4000-2ac44000 r-xp 00000000 1f:04 1344       /lib/libuClibc-0.9.27.so   代码：384k
2ac44000-2ac83000 ---p 2ac44000 00:00 0                                           252k
2ac83000-2ac86000 rw-p 0005f000 1f:04 1344       /lib/libuClibc-0.9.27.so   数据：12k
2ac86000-2ac8b000 rw-p 2ac86000 00:00 0                                            20k
7f3fc000-7f400000 rwxp 7f3fc000 00:00 0                                           16k
7f5fc000-7f600000 rwxp 7f5fc000 00:00 0                                            16k
7f7fc000-7f800000 rwxp 7f7fc000 00:00 0                                            16k
7fff6000-7fff8000 rwxp 7fff6000 00:00 0                                            8k


# cat /proc/882/status
Name:   debug
State:  S (sleeping)
SleepAVG:       98%
Tgid:   882
Pid:    882
PPid:   97
TracerPid:      0
Uid:    0       0       0       0
Gid:    0       0       0       0
FDSize: 32
Groups:
VmSize:     1760 kB
VmLck:         0 kB
VmRSS:       424 kB
VmData:     1068 kB
VmStk:        56 kB   
VmExe:         4 kB   4k
VmLib:       580 kB   库的代码段 
Threads:        1

例子如上，各位帅哥还能解释下没有用名字标出来的debug程序在虚拟内存中的各个段是什么，debug实际占用
物理内存424KB，分别代表maps那边的哪几个段。maps我也能大概知道点，就是debug在虚拟内存中的映射，由
代码段和数据段，库组成。我应该怎么区分debug程序的细节的各个段呢，尤其是我怎么区分bss段和栈呢？
另外我想知道的就是程序调用动态库，动态库如果调了一些数据区初始化，这个花的内存的代价也应该放在程序那边还是？
谢谢！！！

进程栈段处理

http://blog.csdn.net/ShowMan/archive/2009/07/18/4360462.aspx