linux安装valgrind
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最近服务器程序出了一个崩溃，确定是内存地址访问越界，但是不能定位在哪里，没办法只好用valgrind来跑一下，以前公司的服务器是上都默认安装了，突然发现云服务器上没有安装这个软件，所以记录一下如何安装。
添加一个备注信息：valgrind不能调试luajit，创建luastate会失败。必须使用原生lua。
1、下载最新版本的valgrind: http://www.valgrind.org/downloads/valgrind-3.11.0.tar.bz2 解压安装包：tar xvf valgrind-3.11.0.tar.bz2，解压后生成目录valgrind-3.11.0。
目前支持的平台，在官网上列表如下： {x86,amd64,arm,ppc32,ppc64,s390x,mips32,mips64}-linux, arm-android (2.3 and later), x86-android (4.0 and later) and {x86,amd64}-darwin (Mac OS X 10.7, with limited support for 10。
2、安装前配置编译选项，所以配置如下：
# cd valgrind-3.11.0
# ./configure --prefix=/home/valgrind/bin
3、编译和安装valgrind
# make
# make install
4、到这来已经安装成功了，但还不能直接使用，需要创建一个软连接。
# cd /usr/bin/
# ln -s /home/valgrind/bin/bin/valgrind valgrind
最后我们测试一下吧，如果运行so文件失败，可能需要设置库目录。
# export LD_LIBRARY_PATH=`pwd`
# valgrind ./WorldFrame_d -c 2
然后看看终端的显示，确定是否正确安装。
==30079== Memcheck, a memory error detector
==30079== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==30079== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info
==30079== Command: ./WorldFrame_d -c 2
==30079==
begin load xml...
begin read file...
fileLength = 846
begin decrypt file...
pTiXmlDocument::begin parse file...
==30079== Conditional jump or move depends on uninitialised value(s)
==30079== at 0x50F351F: TiXmlBase::StringEqual(char const*, char const*, bool, TiXmlEncoding) (tinyxmlparser.cpp:549)
==30079== by 0x50F426F: TiXmlElement::Parse(char const*, TiXmlParsingData*, TiXmlEncoding) (tinyxmlparser.cpp:1094)
==30079== by 0x50F399D: TiXmlDocument::Parse(char const*, TiXmlParsingData*, TiXmlEncoding) (tinyxmlparser.cpp:744)
==30079== by 0x50E8049: CSchemeEngine::__LoadXML(char const*, bool, TiXmlDocument*) (SchemeEngine.cpp:353)
==30079== by 0x50E7E29: CSchemeEngine::__Load(char const*, CCsvReader*, TiXmlDocument*, bool&) (SchemeEngine.cpp:277)
==30079== by 0x50E76B1: CSchemeEngine::LoadScheme(char const*, ISchemeUpdateSink*) (SchemeEngine.cpp:92)
==30079== by 0x4391D0: ServerScheme::LoadScheme(ISchemeEngine*, char const*, unsigned int) (ServerScheme.cpp:11)
==30079== by 0x433E0A: main (ServerApp.cpp:62)
==30079==
==30079== Conditional jump or move depends on uninitialised value(s)
==30079== at 0x50F2D35: TiXmlBase::SkipWhiteSpace(char const*, TiXmlEncoding) (tinyxmlparser.cpp:315)
==30079== by 0x50F3ABB: TiXmlDocument::Parse(char const*, TiXmlParsingData*, TiXmlEncoding) (tinyxmlparser.cpp:770)
==30079== by 0x50E8049: CSchemeEngine::__LoadXML(char const*, bool, TiXmlDocument*) (SchemeEngine.cpp:353)
==30079== by 0x50E7E29: CSchemeEngine::__Load(char const*, CCsvReader*, TiXmlDocument*, bool&) (SchemeEngine.cpp:277)
==30079== by 0x50E76B1: CSchemeEngine::LoadScheme(char const*, ISchemeUpdateSink*) (SchemeEngine.cpp:92)
==30079== by 0x4391D0: ServerScheme::LoadScheme(ISchemeEngine*, char const*, unsigned int) (ServerScheme.cpp:11)
==30079== by 0x433E0A: main (ServerApp.cpp:62)
==30079==
Sock.dll, version 30
--LongWorkerProc(), long worker thread startup, id=30080