===== Entware mips2 (细节不再更新) =====

笔记: 创建 [[https://github.com/Entware/Entware|Entware]] 环境

==== 系统环境准备 ====
ubuntu 需要安装以下软件包
<code>
gcc g++ make autoconf automake flex gperf bison texinfo libtool libtool-bin libncurses5-dev zlib1g-dev unzip libssl-dev gettext python2.7 subversion
</code>

centos 需要安装以下软件包
<code>
git patch bzip2 gcc gcc-c++ libtool ncurses-devel zlib-static openssl-devel make autoconf automake flex gperf bison texinfo libtool unzip gettext subversion
</code>

==== 搭建 entware ====
<code>
$ git clone https://github.com/Entware/Entware.git
$ cd Entware
$ make package/symlinks
$ cp ./configs/mipselsf.config .config
$ make tools/install
$ make toolchain/install
$ make target/compile
</code>

==== 编译自带软件包 ====
编译名叫name的软件
<code>
$ make package/name/compile
</code>

==== 手动编译软件 ====
=== 设置环境变量 ===
<code>
export STAGING_DIR=/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13
export PATH=$PATH:/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/bin
</code>

=== 手动编译设置 ===
手动编译软件时configure需要加入以下参数
<code>
--target=mipsel-openwrt-linux \
--host=mipsel-openwrt-linux \
--build=x86_64-linux-gnu \
CC=mipsel-openwrt-linux-uclibc-gcc \
CFLAGS='-O2 -pipe -mno-branch-likely -mips32r2 -mtune=mips32r2 -fno-caller-saves -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result -msoft-float -fPIC' \
CPPFLAGS='-I/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/opt/include -I/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/include -I/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/usr/include -I/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/include' \
LDFLAGS='-L/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/opt/lib -L/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/lib -Wl,-rpath,/opt/lib -Wl,-rpath-link=/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/opt/lib -Wl,--dynamic-linker=/opt/lib/ld-uClibc.so.0 -L/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/usr/lib -L/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/lib'
</code>

=== 例子 ===
编译tinc 1.11pre11

先编译依赖库, entware自带
<code>
make package/ncurses/compile
make package/lzo/compile
make package/libreadline/compile
make package/zlib/compile
</code>

接着编译tinc
<code>
./configure \
--target=mipsel-openwrt-linux \
--host=mipsel-openwrt-linux \
--build=x86_64-linux-gnu \
--prefix=/opt \
--without-openssl \
CC=mipsel-openwrt-linux-uclibc-gcc \
CFLAGS='-O2 -pipe -mno-branch-likely -mips32r2 -mtune=mips32r2 -fno-caller-saves -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result -msoft-float -fPIC' \
CPPFLAGS='-I/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/opt/include -I/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/include -I/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/usr/include -I/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/include' \
LDFLAGS='-L/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/opt/lib -L/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/lib -Wl,-rpath,/opt/lib -Wl,-rpath-link=/opt/mips/Entware/staging_dir/target-mipsel_mips32r2_uClibc-1.0.13/opt/lib -Wl,--dynamic-linker=/opt/lib/ld-uClibc.so.0 -L/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/usr/lib -L/opt/mips/Entware/staging_dir/toolchain-mipsel_mips32r2_gcc-5.3.0_uClibc-1.0.13/lib'
make
</code>