Cross Build Static aarch64 Tor Binary on Alpine x86_x64

Cross_Build_Static_Tor

#!/bin/sh

#Cross Build Static aarch64 Tor Binary on Alpine x86_x64

install_dir="`pwd`/aarch64"
include_dir="${install_dir}/include"
lib_dir="${install_dir}/lib"

custom_flags_set() {
    CPPFLAGS="--static -static -I${include_dir}"
    LDFLAGS="--static -static -Wl,--no-as-needed -L${lib_dir} -lpthread -pthread"
}

custom_flags_reset() {
    CPPFLAGS=""
    LDFLAGS=""
}

custom_flags_reset

[ -n "$1" -a "$1" = "prepare" ] && {
    #Prerequirements
#    apt-get update
#    apt-get install -y build-essential curl
    #lzma, zstd
#    apt install -y liblzma-dev
#    apt install -y libzstd-dev

    #Dependecies
    rm -rf aarch64/
    rm -rf xz-5.2.5/
    rm -rf zstd-1.5.0/
    rm -rf zlib-1.2.11/
    rm -rf libevent-2.1.8-stable/
    rm -rf openssl-1.1.1k/

    #lzma
    curl -fsSL "https://tukaani.org/xz/xz-5.2.5.tar.gz" | tar zxvf -
    cd xz-5.2.5
    CC=aarch64-linux-musl-gcc ./configure --prefix=${install_dir} --host=aarch64-linux-musl
    make -j"$(nproc)" CXXFLAGS="${CXXFLAGS}" CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
    make install
    cd ..

#    exit

    #zstd
    curl -fsSL "https://github.com/facebook/zstd/releases/download/v1.5.0/zstd-1.5.0.tar.gz" | tar zxvf -
    cd zstd-1.5.0
    CC=aarch64-linux-musl-gcc make -j"$(nproc)" \
    CXXFLAGS="${CXXFLAGS}" CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
    make PREFIX=${install_dir} install
    cd ..

#    exit

    #zLib
    curl -fsSL "https://zlib.net/zlib-1.2.11.tar.gz" | tar zxvf -
    cd zlib-1.2.11
    custom_flags_set
    CC=aarch64-linux-musl-gcc ./configure --prefix=${install_dir} --static
    make -j"$(nproc)" CXXFLAGS="${CXXFLAGS}" CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
    make install
    cd ..

    #libssl
    curl -fsSL "https://www.openssl.org/source/openssl-1.1.1k.tar.gz" | tar zxvf -
    cd openssl-1.1.1k
    custom_flags_set
    ./Configure linux-aarch64 --cross-compile-prefix=aarch64-linux-musl- --prefix=${install_dir} threads no-shared no-dso no-comp CXXFLAGS="${CXXFLAGS}" CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
    make -j$(nproc)
#    make install
    make install_sw
    cd ..

    #libevent
    curl -fsSL "https://github.com/libevent/libevent/releases/download/release-2.1.8-stable/libevent-2.1.8-stable.tar.gz" | tar zxvf -
    cd libevent-2.1.8-stable
    custom_flags_set
    ./configure --host=aarch64-linux-musl \
               --prefix=${install_dir} \
               --disable-shared \
               --enable-static \
               --with-pic \
               CC=aarch64-linux-musl-gcc CXX=aarch64-linux-musl-g++ \
               CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
    make -j$(nproc)
    make install
    cd ..

}

#Tor
#rm -rf tor-0.4.6.6/
#curl -fsSL "https://dist.torproject.org/tor-0.4.6.6.tar.gz" | tar zxvf -
#cd tor-0.4.6.6
cd tor
git pull
./autogen.sh
make distclean
PWD="`pwd`"
[ -n "$1" -a "$1" = "mini" ] && {
./configure --prefix=$PWD/install --host=aarch64-linux-musl --disable-tool-name-check \
            --enable-static-tor \
            --disable-zstd --disable-lzma \
            --disable-manpage --disable-html-manual --disable-asciidoc --disable-unittests \
            --disable-seccomp --disable-libscrypt \
            --with-libevent-dir=${install_dir} \
            --with-openssl-dir=${install_dir} \
            --with-zlib-dir=${install_dir} \
            --disable-module-dirauth --disable-module-relay --disable-tests --disable-bench \
            CC=aarch64-linux-musl-gcc CXX=aarch64-linux-musl-g++
#            CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
#fix `read-only segment has dynamic relocations` error
sed -i 's/-pie//g' Makefile
} || {
./configure --prefix=$PWD/install --host=aarch64-linux-musl --disable-tool-name-check \
            --enable-static-tor --enable-static-libevent --enable-static-openssl --enable-static-zlib \
            --enable-zstd --enable-lzma --enable-pic \
            --disable-manpage --disable-html-manual --disable-asciidoc --disable-unittests \
            --disable-seccomp --disable-libscrypt \
            --with-libevent-dir=${install_dir} \
            --with-openssl-dir=${install_dir} \
            --with-zlib-dir=${install_dir} \
            CC=aarch64-linux-musl-gcc CXX=aarch64-linux-musl-g++
#            CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
sed -i 's/-pie//g' Makefile
}
make -j$(nproc)
make install
cd install/bin
aarch64-linux-musl-strip *
ls -la
file ./tor

Thanks for sharing this! Where do you get the aarch64-linux-musl-gcc binary from on an x86_64 Alpine host?

Thanks for sharing this! Where do you get the aarch64-linux-musl-gcc binary from on an x86_64 Alpine host?

https://github.com/richfelker/musl-cross-make

Great, thanks!