前言
在准备好Host环境后，接下来构造一个临时Linux系统。该系统包含****构建所需要的工具。构造临时Linux系统分两步：
构建一个宿主系统无关的新工具链（编译器、汇编器、链接器、库和一些有用的工具）
使用该工具链构建其它的基础工具。
编译binutils-阶段1
解压binutils-2.27.tar.bz2包
tar -xvf binutils-2.27.tar.bz2
binutils作为第一个要编译的包，提供了linker、assembler以及其他处理目标文件(object files)的工具
创建一个专用的编译目录
mkdir -v build cd build
编译binutils
../configure --prefix=/tools --with-sysroot=$LFS --with-lib-path=/tools/lib --target=$LFS_TGT --disable-nls --disable-werror
make
case $(uname -m) in x86_64) mkdir -v /tools/lib && ln -sv lib /tools/lib64 ;; esac
make install
编译gcc-阶段1
解压gcc-6.2.0.tar.bz2
tar -xvf gcc-6.2.0.tar.bz2
GCC 需要 GMP、 MPFR 和 MPC 软件包
cd gcc-6.2.0 tar -xf ../mpfr-3.1.2.tar.xz mv -v mpfr-3.1.2 mpfr tar -xf ../gmp-6.0.0a.tar.xz mv -v gmp-6.0.0 gmp tar -xf ../mpc-1.0.2.tar.gz mv -v mpc-1.0.2 mpc
更改gcc默认动态链接器的位置，转而使用/tools下面的。他是在gcc搜索路径中移除/usr/include
for file in $(find gcc/config -name linux64.h -o -name linux.h -o -name sysv4.h) do cp -uv $file{,.orig} sed -e 's@/lib(64)?(32)?/ld@/tools&@g' -e 's@/usr@/tools@g' $file.orig > $file echo ' #undef STANDARD_STARTFILE_PREFIX_1 #undef STANDARD_STARTFILE_PREFIX_2 #define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/" #define STANDARD_STARTFILE_PREFIX_2 ""' >> $file touch $file.orig done
单独建一个目录编译gcc
lfs:/mnt/lfs/sources/gcc-6.2.0$ pwd /mnt/lfs/sources/gcc-6.2.0 lfs:/mnt/lfs/sources/gcc-6.2.0$ mkdir -v build mkdir: created directory 'build'
../configure --target=$LFS_TGT --prefix=/tools --with-glibc-version=2.11 --with-sysroot=$LFS --with-newlib --without-headers --with-local-prefix=/tools --with-native-system-header-dir=/tools/include --disable-nls --disable-shared --disable-multilib --disable-decimal-float --disable-threads --disable-libatomic --disable-libgomp --disable-libmpx --disable-libquadmath --disable-libssp --disable-libvtv --disable-libstdcxx --enable-languages=c,c++
make -j4
make install
cd /mnt/lfs/sources
rm -rf gcc-6.2.0
编译linux-4.7.2
Linux内核需要向系统C库（LFS下指的是Glibc）暴露API接口。
解压linux-4.7.2.tar.xz
tar -xvf linux-4.7.2.tar.xz
make mrproper
make INSTALL_HDR_PATH=dest headers_install
cp -rv dest/include/* /tools/include
编译Glibc-2.24
tar -xvf glibc-2.24.tar.xz
cd glibc-2.24
mkdir -v build
cd build/
../configure --prefix=/tools --host=$LFS_TGT --build=$(../scripts/config.guess) --enable-kernel=2.6.32 --with-headers=/tools/include libc_cv_forced_unwind=yes libc_cv_c_cleanup=yes
make -j4
make install
cd ../..
rm -rf glibc-2.24（其实前面那些编译完的包都可以删除）
echo 'int main(){}' > dummy.c $LFS_TGT-gcc dummy.c readelf -l a.out | grep ': /tools'
输出如下内容表明一切正常：[Requesting program interpreter: /tools/lib/ld-linux.so.2]
rm -v dummy.c a.out
编译Libstdc++
Libstdc++是gcc的一部分，他的编译工作还是在gcc目录下完成
tar -xvf gcc-6.2.0.tar.bz2
cd gcc-6.2.0
mkdir -v build
cd build/
../libstdc++-v3/configure --host=$LFS_TGT --prefix=/tools --disable-multilib --disable-nls --disable-libstdcxx-threads --disable-libstdcxx-pch --with-gxx-include-dir=/tools/$LFS_TGT/include/c++/6.2.0
make -j4
make install
cd ../..
rm -rf gcc-6.2.0
编译Binutils-阶段2
tar -xvf binutils-2.27.tar.bz2
mkdir -v build
cd build
CC=$LFS_TGT-gcc AR=$LFS_TGT-ar RANLIB=$LFS_TGT-ranlib ../configure --prefix=/tools --disable-nls --disable-werror --with-lib-path=/tools/lib --with-sysroot
make -j4
make install
cd ../..
编译gcc-阶段2
tar -xvf gcc-6.2.0.tar.bz2
cd gcc-6.2.0
cat gcc/limitx.h gcc/glimits.h gcc/limity.h > `dirname $($LFS_TGT-gcc -print-libgcc-file-name)`/include-fixed/limits.h
for file in $(find gcc/config -name linux64.h -o -name linux.h -o -name sysv4.h) do cp -uv $file{,.orig} sed -e 's@/lib(64)?(32)?/ld@/tools&@g' -e 's@/usr@/tools@g' $file.orig > $file echo ' #undef STANDARD_STARTFILE_PREFIX_1 #undef STANDARD_STARTFILE_PREFIX_2 #define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/" #define STANDARD_STARTFILE_PREFIX_2 ""' >> $file touch $file.orig done
tar -xf ../mpfr-3.1.4.tar.xz mv -v mpfr-3.1.4 mpfr tar -xf ../gmp-6.1.1.tar.xz mv -v gmp-6.1.1 gmp tar -xf ../mpc-1.0.3.tar.gz mv -v mpc-1.0.3 mpc
mkdir -v build
cd build
CC=$LFS_TGT-gcc CXX=$LFS_TGT-g++ AR=$LFS_TGT-ar RANLIB=$LFS_TGT-ranlib ../configure --prefix=/tools --with-local-prefix=/tools --with-native-system-header-dir=/tools/include --enable-languages=c,c++ --disable-libstdcxx-pch --disable-multilib --disable-bootstrap --disable-libgomp
make -j4
make install
ln -sv gcc /tools/bin/cc
cd ../../
echo 'int main(){}' > dummy.c cc dummy.c readelf -l a.out | grep ': /tools'
输出：[Requesting program interpreter: /tools/lib/ld-linux.so.2]表示一切顺利
rm -v dummy.c a.out
编译Tcl-core
tar -xvf tcl-core8.6.6-src.tar.gz
cd tcl8.6.6/
cd unix
./configure --prefix=/tools
make -j4
TZ=UTC make test
make install
chmod -v u+w /tools/lib/libtcl8.6.so
make install-private-headers
ln -sv tclsh8.6 /tools/bin/tclsh
cd ../..
rm -rf tcl8.6.6/
编译Expect
tar -xvf expect5.45.tar.gz
cd expect5.45
cp -v configure{,.orig}
sed 's:/usr/local/bin:/bin:' configure.orig > configure
./configure --prefix=/tools --with-tcl=/tools/lib --with-tclinclude=/tools/include
make -j4
make SCRIPTS="" install
cd ..
rm -rf expect5.45
编译DejaGNU
tar -xvf dejagnu-1.6.tar.gz
cd dejagnu-1.6
./configure --prefix=/tools
make install
make check
编译Check
tar -xvf check-0.10.0.tar.gz
cd check-0.10.0
PKG_CONFIG= ./configure --prefix=/tools
make -j4
make check
make install
编译Ncurses
tar -xvf ncurses-6.0.tar.gz
cd ncurses-6.0
sed -i s/mawk// configure
./configure --prefix=/tools --with-shared --without-debug --without-ada --enable-widec --enable-overwrite
make -j8
make install
cd ..
rm -rf ncurses-6.0
编译Bash
tar -xvf bash-4.3.30.tar.gz
cd bash-4.3.30
./configure --prefix=/tools --without-bash-malloc
make -j8
make install
cd ..
rm -rf bash-4.3.30
编译Bzip2
tar -xvf bzip2-1.0.6.tar.gz
cd bzip2-1.0.6
make
make PREFIX=/tools install
cd ..
rm -rf bzip2-1.0.6
编译Coreutils
tar -xvf coreutils-8.25.tar.xz
cd coreutils-8.25
./configure --prefix=/tools --enable-install-program=hostname
make -j8
make install
编译Diffutils
tar -xvf diffutils-3.5.tar.xz
cd diffutils-3.5
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf diffutils-3.5
编译File
tar -xvf file-5.28.tar.gz
cd file-5.28
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf file-5.28
编译Findutils
tar -xvf findutils-4.6.0.tar.gz
cd findutils-4.6.0
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf findutils-4.6.0
安装Gawk
tar -xvf gawk-4.1.3.tar.xz
cd gawk-4.1.3
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf gawk-4.1.3
编译Gettext
tar -xvf gettext-0.19.8.1.tar.xz
cd gettext-0.19.8.1
cd gettext-tools
EMACS="no" ./configure --prefix=/tools --disable-shared
make -C gnulib-lib
make -C intl pluralx.c
make -C src msgfmt
make -C src msgmerge
make -C src xgettext
cp -v src/{msgfmt,msgmerge,xgettext} /tools/bin
cd ../..
rm -rf gettext-0.19.8.1
编译Grep
tar -xvf grep-2.25.tar.xz
cd grep-2.25
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf grep-2.25
编译Gzip
tar -xvf gzip-1.8.tar.xz
cd gzip-1.8
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf gzip-1.8
编译M4
tar -xvf m4-1.4.17.tar.xz
cd m4-1.4.17
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf m4-1.4.17
编译Make
tar -xvf make-4.2.1.tar.bz2
cd make-4.2.1
./configure --prefix=/tools --without-guile
make -j8
make install
cd ..
rm -rf m4-1.4.17
编译Patch
tar -xvf patch-2.7.5.tar.xz
cd patch-2.7.5
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf patch-2.7.5
编译Perl
tar -xvf perl-5.24.0.tar.bz2
cd perl-5.24.0
sh Configure -des -Dprefix=/tools -Dlibs=-lm
make -j8
cp -v perl cpan/podlators/scripts/pod2man /tools/bin
mkdir -pv /tools/lib/perl5/5.24.0
cp -Rv lib/* /tools/lib/perl5/5.24.0
cd ..
rm -rf perl-5.24.0
编译Sed
tar -xvf sed-4.2.2.tar.bz2
cd sed-4.2.2
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf sed-4.2.2
编译Tar
tar -xvf tar-1.29.tar.xz
cd tar-1.29
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf tar-1.29
编译Texinfo
tar -xvf texinfo-6.1.tar.xz
cd texinfo-6.1
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf texinfo-6.1
编译Util-linux
tar -xvf util-linux-2.28.1.tar.xz
cd util-linux-2.28.1
./configure --prefix=/tools --without-python --disable-makeinstall-chown --without-systemdsystemunitdir PKG_CONFIG=""
make -j8
make install
cd ..
rm -rf util-linux-2.28.1
编译Xz
tar -xvf xz-5.2.2.tar.xz
cd xz-5.2.2
./configure --prefix=/tools
make -j8
make install
cd ..
rm -rf xz-5.2.2