目的：在现有机器上编译其它指令集程序，比如在x86上编译MIPS，PPC等
下载：http://www.kegel.com/crosstool/crosstool-0.43.tar.gz
正文：
1、获取crosstool工具包，解压
2、选择适合自己的模板，比如powerpc-405-linux-gnu，
本文选择demo-ppc405.sh 模板。
A）vi
demo-ppc405.sh
#!/bin/sh # This script has one line for each known working toolchain # for this architecture. Uncomment the one you want. # Generated by generate-demo.pl from buildlogs/all.dats.txt set -ex TARBALLS_DIR=$HOME/downloads RESULT_TOP=/home/jyq/crosstool export TARBALLS_DIR RESULT_TOP GCC_LANGUAGES="c,c++" export GCC_LANGUAGES # Really, you should do the mkdir before running this, # and chown /opt/crosstool to yourself so you don't need to run as root. mkdir -p $RESULT_TOP #eval `cat powerpc-405.dat gcc-3.2.3-glibc-2.2.5.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.2.3-glibc-2.3.2.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.3.6-glibc-2.2.5.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.3.6-glibc-2.3.2.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.3.6-glibc-2.3.5.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.3.6-glibc-2.3.6.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.4.5-glibc-2.2.5.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.4.5-glibc-2.3.2.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.4.5-glibc-2.3.5.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-3.4.5-glibc-2.3.6.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-4.0.2-glibc-2.3.2.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-4.0.2-glibc-2.3.5.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-4.0.2-glibc-2.3.6.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-4.1.0-glibc-2.3.2.dat` sh all.sh --notest #eval `cat powerpc-405.dat gcc-4.1.0-glibc-2.3.5.dat` sh all.sh --notest eval `cat powerpc-405.dat gcc-4.4.2-glibc-2.9.dat` sh all.sh --notest echo Done.
红色部分为待修改部分，分别为源码存放目录、生成工具目录、生成语言、相应版本文件
B）vim powerpc-7450.dat
TARGET=powerpc-405-linux-gnu TARGET_CFLAGS="-O -mcpu=405" GCC_EXTRA_CONFIG="--with-cpu=405 --enable-cxx-flags=-mcpu=405" GLIBC_EXTRA_CONFIG="$GLIBC_EXTRA_CONFIG --without-fp"
红色部分为工具链名称
C）vim gcc-3.4.1-glibc-2.3.3.dat
相应目录为源码包文件
D)./demo-ppc405.sh即可
D