这是《嵌入式linux－硬件、软件与接口》一书对应的所有linux方面实例的源代码

				#!/bin/bash
				# buildtoolchain-step11-rebuildgcc v1.2 08/13/02 
				# www.embeddedlinuxinterfacing.com
				#
				# The original location of this script is
				# http://www.embeddedlinuxinterfacing.com/chapters/03/buildtoolchain
				#
				# Copyright (C) 2001 by Craig Hollabaugh
				# See buildtoolchain script for General Public License statement
				
				if [ ! $BUILDTOOLCHAINENV ]
				then
				. ./buildtoolchain-environment $1
				fi
				
				#
				# Step 11 - rebuilding a Cross-Compiler Version of gcc
				#
				date "+%x %X -   Started: $0"
				date "+%x %X -   Started: $0" >> $SRCFILELOC/output-build-status
				
				
				echo Re-building $TARGET-$GCCVERSION
				cd $BUILDLOC
				rm -rf $GCCVERSION
				
				tar zxf $SRCFILELOC/$GCCVERSION.tar.gz
				
				if [ $GCCPATCH ]
				then
					cd $GCCVERSION
					bzip2 -cd $SRCFILELOC/$GCCPATCH | patch -p0
					cd ../$TARGET-gcc
				fi
				
				cd $BUILDLOC/$TARGET-gcc
				
				if [ $ARCH = "arm" ]
				then
					../$GCCVERSION/configure --target=$TARGET \
				                                 --prefix=$PREFIX \
				                                 --with-headers=$PREFIX/src/$TARGET/include \
				                                 --enable-languages=c
				fi
				
				if [ $ARCH = "ppc" ]
				then
				
				        ../$GCCVERSION/configure --target=$TARGET \
				                         --prefix=$PREFIX \
				                         --with-headers=$PREFIX/src/$TARGET/include \
				                         --enable-languages=c \
				                         --without-fp
				fi
				
				make
				make install
				
				ls -l $PREFIX/bin/$TARGET-*
				
				date "+%x %X - Completed: $0"
				date "+%x %X - Completed: $0" >> $SRCFILELOC/output-build-status
				
				
				#beep
				echo -e "\07"