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ArchLinux下VirtualBox安装和配置

为GCC添加CPU参数优化代码编译

獨立的圓 posted @ 2008年3月11日 19:42 in 软件安装_配置 with tags gcc , 8058 阅读

 本站文章已轉移,敬請移步:http://www.xxb.me/ ,謝謝!

今天有空小小地研究了一下。

首先查看GCC版本

$ gcc --version

然后查看CPU型号

$ cat /proc/cpuinfo

接下来就可以针对CPU型号使用优化参数了,点击这里查看适合对应CPU型号的参数。

我的CPU是闪龙64(Sempron64 754),工作于32位系统,所以我使用了这个参数:

$ CHOST="i686-pc-linux-gnu" \
 CFLAGS="-march=k8 -msse3 -O2 -pipe -fomit-frame-pointer" \
 CXXFLAGS="${CFLAGS}" \
 ./configure ……

我照搬Gentoo wiki上的指南,暂时没发现什么问题。

因为在使用ArchLinux,所以我编辑/etc/makepkg.conf,把参数添加进去了^_^

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