ARM平台交叉编译器的制作

主机环境：

   ubuntu 12.04.1 64bit
   gcc version 4.6.3

   binutils-2.22.tar.gz

   gcc-4.7.2.tar.bz2
   gmp-5.0.5.tar.xz
   mpfr-3.1.1.tar.xz
   mpc-1.0.1.tar.gz

   glibc-2.16.0.tar.xz
   glibc-linuxthreads-2.5.tar.bz2
   glibc-ports-2.16.0.tar.xz

   linux-3.5.4.tar.bz2

cd ~/src
vim armenv
# 将以下内容写入armenv文件中保存退出
TARGET=arm-linux-gnueabi
PREFIX=/opt/cross/gcc-4.7.2/$TARGET
PATH=$PREFIX/bin:$PATH

export TARGET PREFIX PATH

# 配置编译环境
. armenv

tar -xzf binutils-2.22.tar.gz
mkdir binutils-build
cd binutils-build
../binutils-2.22/configure --target=$TARGET --prefix=$PREFIX
make -j2
sudo make install
cd ..

3. 第一次编译gcc

tar -xjf gcc-4.7.2.tar.bz2
mkdir gcc-bootstrap-build
tar -xf gmp-5.0.5.tar.xz
tar -xf mpfr-3.1.1.tar.xz
tar -xf mpc-1.0.1.tar.gz
cd gcc-4.7.2
mv -v gmp-5.0.5 gmp
mv -v mpfr-3.1.1 mpfr
mv -v mpc-1.0.1 mpc
cd ../gcc-bootstrap-build

../gcc-4.7.2/configure \
  --target=$TARGET --host=x86_64-linux-gnu --build=x86_64-linux-gnu \
  --enable-targets=all --prefix=$PREFIX \
  --enable-languages=c --with-newlib --without-headers --disable-nls \
  --disable-threads --disable-shared --disable-libmudflap --disable-libssp \
  --disable-libgomp --disable-decimal-float --enable-checking=release \
  --disable-bootstrap --disable-libquadmath \
  --with-mpfr-include=$(pwd)/../gcc-4.7.2/mpfr/src \
  --with-mpfr-lib=$(pwd)/mpfr/src/.libs
make -j2 all-gcc 
make -j2 all-target-libgcc
sudo make install-gcc
sudo make install-target-gcc
sudo cp -v libiberty/libiberty.a $PREFIX/lib
# 以下添加libgcc_eh.a,libgcc_s.a到libgcc.a的软链接，防止编译C库时出错
sudo ln -vs libgcc.a `arm-linux-gnueabi-gcc -print-libgcc-file-name | sed 's/libgcc/&_eh/'`
sudo ln -vs libgcc.a `arm-linux-gnueabi-gcc -print-libgcc-file-name | sed 's/libgcc/&_s/'`
cd ..

tar -xjf linux-3.5.4.tar.bz2
cd linux-3.5.4
make ARCH=arm headers_check
make ARCH=arm INSTALL_HDR_PATH=dest headers_install
sudo cp -rv dest/include/* $PREFIX/$TARGET/include
注意:内核头文件的安装位置是$PREFIX/$TARGET/include，而不是$PREFIX
cd ..

tar -xf glibc-2.16.0.tar.xz
tar -xjf glibc-linuxthreads-2.5.tar.bz2 -C glibc-2.16.0
tar -xf glibc-ports-2.16.0.tar.xz
mv glibc-ports-2.16.0 glibc-2.16.0/ports
mkdir glibc-build
cd glibc-build

CC=$TARGET-gcc \
AR=$TARGET-ar \
RANLIB=$TARGET-ranlib \
../glibc-2.16.0/configure \
  --host=$TARGET \
  --prefix=$PREFIX/$TARGET \
  --with-tls --disable-profile \
  --enable-add-ons --with-headers=$PREFIX/$TARGET/include \
  libc_cv_forced_unwind=yes libc_cv_c_cleanup=yes libc_cv_arm_tls=yes
注意:C库的安装位置是$PREFIX/$TARGET，编译完整的gcc时链接使用
sudo make -j2
sudo -s
. ../armenv
make install
exit
cd ..

tar -xf gmp-5.0.5.tar.xz
cd gmp-5.0.5
./configure --prefix=/usr
make -j2
sudo make install
cd ..

tar -xf mpfr-3.1.1.tar.xz
cd mpfr-3.1.1
./configure --prefix=/usr
make -j2
sudo make install
cd ..

tar -xf mpc-1.0.1.tar.gz
cd mpc-1.0.1
./configure --prefix=/usr
make -j2
sudo make install
cd ..
# 若系统中安装gmp,mpfr,mpc且版本满足要求，可不用编译安装。
# 构建期间，将三者安装到其他位置，并添加了链接搜索路径，试了几次都没有成功。
# 有时间再做尝试，估计是哪里配置不正确。

../gcc-4.7.2/configure --target=$TARGET \
  --host=x86_64-linux-gnu --build=x86_64-linux-gnu \
  --prefix=$PREFIX \
  --enable-languages=c,c++ --enable-shared
make -j2
sudo make install
cd ..

arm-linux-gnueabi-gcc -o hello hello.c
arm-linux-gnu-eabi-strip hello
file hello
hello: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, stripped

arm-linux-gnueabi-gcc -o hello hello.c -static
arm-linux-gnu-eabi-strip hello
hello: ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, for GNU/Linux 2.6.16, stripped