GCC编译链（newlib）到创建

折腾了一整天，心力绞碎，做好笔记。目标是创建一个裸机（bare-metal）到编译环境，没有用crosstool，完全是从零开始下载安装，几点感想，ubuntu的包管理还是不错的，个人觉得不必去追最新版本，最好用长期支持版，例如 8.04，10.04，个人感觉挺稳定的。编译链到构造对版本到要求很高，所以最好用别人成功的版本，例如我这些组件的版本就是到crosstool官网看到有人成功的版本，TARGET 的名字不能随便起，一般按照系统认识的，例如 arm-none-eabi ，否则也很容易失败。最后编译了个LED走马灯程序下载到 mini2440，一切正常。
Etual
2012-3-21

Author : Etual
date : 2012-3-21
host : ubuntu 10.04
host gcc : gcc 4.3.4
target: arm-unknow-eabi
binutils : 1.19.1
gcc : 4.3.4
newlib : 1.17.0
insight : 6.8.1

note : in dual core system can use "make -j 2 all" for faster compile!

0. prepare src
a. download
binutils,gcc, ftp://ftp.gnu.org
newlib
insight ftp://sourceware.org/pub/insight/releases

b. steup environment
# export TARGET=arm-unknow-eabi
# export PREFIX=/mini2440/tool/$TARGET
# export PATH=$PATH:$PREFIX/bin

c. setup required packet
# apt-get install flex bison zlibc libgmp3-dev libmpfr-dev libmpc-dev autoconf texinfo build-essential libncurses5 libncurses5-dev

d. make dir
# cd /mini2440/temp
# mkdir build-host build-gcc build-newlib build-binutils build-insight
# tar xjf binutils-2.19.1.tar.bz2
# tar xjf gcc-4.3.4.tar.bz2
# tar xjf insight-6.8-1a.tar.bz2
# tar xzf newlib-1.17.0.tar.gz

1. build a host gcc rather then ubuntu's GCC
# cd build-host
# ../gcc-4.3.4/configure --prefix=/opt --quiet --enable-languages="c,c++" --enable-shared --enable-threads=posix --enable-nls --enable-multiarch --with-system-zlib
# rm /usr/bin/gcc
# ln -s /opt/bin/gcc /usr/bin/gcc

2. install binutils
# cd build-binutils
# ../binutils-2.19.1/configure --target=$TARGET --prefix=$PREFIX --enable-interwork --enable-multilib --with-gnu-ld --with-gnu-as --disable-werror
# make all
# make install

3. install gcc without lib
# cd build-gcc
# ../gcc-4.3.4/configure --target=$TARGET --prefix=$PREFIX --with-newlib --without-headers --with-gnu-as --with-gnu-ld --disable-shared --enable-languages=c --disable-werror
# make all-gcc
# make install-gcc

4. build newlib
# cd build-newlib
# ../newlib-1.17.0/configure --target=$TARGET --prefix=$PREFIX --disable-newlib-supplied-syscalls --enable-interwork --enable-multilib --with-gnu-ld --with-gnu-as --disable-newlib-io-float --disable-werror
# make all
# make install

5. build gcc full
# cd build-gcc
# rm -rf *
# ../gcc-4.3.4/configure --target=$TARGET --prefix=$PREFIX --with-gnu-as --with-gnu-ld --enable-languages=c --enable-interwork --enable-multilib --with-newlib --with-headers=../newlib-1.17.0/newlib/libc/include --disable-werror
# make all
# make install

6. insight
# cd build-insight
# ../insight-6.8-1/configure --target=$TARGET --prefix=$PREFIX --enable-interwork --enable-multilib --with-gnu-ld --with-gnu-as --disable-werror
# make all
# make install
note : can change port in file "~/.gdbtkinit"

done :-)