diff --git a/Dockerfile b/Dockerfile index fcad87b..e9d90f5 100644 --- a/Dockerfile +++ b/Dockerfile @@ -22,26 +22,26 @@ RUN curl -fL https://github.com/javabean/su-exec/releases/download/${SU_EXEC_VER curl -fL https://github.com/krallin/tini/releases/download/${TINI_VER}/tini-amd64 > sbin/tini && \ chmod +x sbin/su-exec sbin/tini -WORKDIR /tmp/glibc +WORKDIR /tmp/glibc/build # Download and build glibc from source -RUN curl -fL https://ftp.gnu.org/gnu/glibc/glibc-${GLIBC_VER}.tar.xz | tar xJ && \ - mkdir -p glibc-build && cd glibc-build && \ +RUN curl -fL https://ftp.gnu.org/gnu/glibc/glibc-${GLIBC_VER}.tar.xz \ + | tar xJ --strip-components=1 -C .. && \ \ echo "slibdir=/lib" >> configparms && \ echo "rtlddir=/lib" >> configparms && \ echo "sbindir=/bin" >> configparms && \ - echo "rootsbindir=/bin" >> configparms && \ + echo "rootsbindir=/sbin" >> configparms && \ + echo "build-programs=yes" >> configparms && \ \ # Fix debian lib path weirdness rm -rf /usr/include/${ARCH}-linux-gnu/c++ && \ - ln -s /usr/include/${ARCH}-linux-gnu/* /usr/include && \ \ - ../glibc-${GLIBC_VER}/configure \ - --prefix="$(pwd)/root" \ - --libdir="$(pwd)/root/lib" \ + exec >/dev/null && \ + ../configure \ + --prefix=/ \ + --libdir="/lib" \ --libexecdir=/lib \ - --with-headers=/usr/include \ --enable-add-ons \ --enable-obsolete-rpc \ --enable-kernel=3.10.0 \ @@ -53,12 +53,23 @@ RUN curl -fL https://ftp.gnu.org/gnu/glibc/glibc-${GLIBC_VER}.tar.xz | tar xJ && --enable-multi-arch \ --disable-werror && \ make -j "$(nproc)" && \ - make install_root=$(pwd)/out install + make -j "$(nproc)" install_root="$(pwd)/out" install -# Copy glibc libs & generate ld cache -RUN cp -d glibc-build/out/lib/*.so "${PREFIX}/lib" && \ - echo '/usr/lib' > "${PREFIX}/etc/ld.so.conf" && \ - ldconfig -r "${PREFIX}" +# Strip binaries to reduce their size +RUN apt-get install -y file && \ + find out/{s,}bin -exec file {} \; | grep -i elf \ + | sed 's|^\(.*\):.*|\1|' | xargs strip -s && \ + \ + # Patch ldd to use sh not bash + sed -i '1s/.*/#!\/bin\/sh/' out/bin/ldd && \ + # Copy glibc libs & generate ld cache + cp -d out/lib/*.so "${PREFIX}/lib" && \ + cp -d out/bin/ldd "${PREFIX}/bin" && \ + cp -d out/sbin/ldconfig "${PREFIX}/sbin" && \ + \ + echo /usr/lib > "${PREFIX}/etc/ld.so.conf" && \ + ldconfig -r "${PREFIX}" && \ + ldconfig -r "${PREFIX}" -p WORKDIR /tmp/busybox