检测程序内在泄漏－－Valgrind

　　Valgrind是一款用于内存调试、内存泄漏检测以及性能分析的软件开发工具。

　　到下载最新版本的valgrind软件。

　　安装：

tar -jxvf valgrind-3.7.0.tar.bz2
cd valgrind-3.7.0
./configure --prefix=/usr/local/valgrind/
make && make install

　　检测/bin/下面的ls程序：

[root@localhost ~]# /usr/local/valgrind/bin/valgrind --tool=memcheck --leak-check=full /bin/ls
==28160== Memcheck, a memory error detector
==28160== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==28160== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==28160== Command: /bin/ls
==28160==
1check.sh        char          dbbackup.log      foo.c               lnmp    SA_DATAQUERY_INTERFACES.sh         SA_FindDuplicatedPets.prj.sh.log  sh         valgrind-3.7.0
a.log            char.tar.gz   dbbackup.sh       install.log         mbox    SA_FindDuplicatedItems.prj.sh      sa_hefu.log                       test.sh    valgrind-3.7.0.tar.bz2
a.log~           checktime.sh  Desktop           install.log.syslog  mvbak   SA_FindDuplicatedItems.prj.sh.log  sa_hefu.sh                        time2.log  wanglei.sql
anaconda-ks.cfg  chmv          duplicatItem.log  iptables-20110211   nagios  SA_FindDuplicatedPets.prj.sh       SA_Settings.sh                    time.log   zhu
==28160==
==28160== HEAP SUMMARY:
==28160==     in use at exit: 22,709 bytes in 41 blocks
==28160==   total heap usage: 93 allocs, 52 frees, 43,497 bytes allocated
==28160==
==28160== LEAK SUMMARY:
==28160==    definitely lost: 0 bytes in 0 blocks
==28160==    indirectly lost: 0 bytes in 0 blocks
==28160==      possibly lost: 0 bytes in 0 blocks
==28160==    still reachable: 22,709 bytes in 41 blocks
==28160==         suppressed: 0 bytes in 0 blocks
==28160== Reachable blocks (those to which a pointer was found) are not shown.
==28160== To see them, rerun with: --leak-check=full --show-reachable=yes
==28160==
==28160== For counts of detected and suppressed errors, rerun with: -v
==28160== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 19 from 8)

　　如上，代表程序ls没有内存错误。