I try to build a cross gcc compiler for an older ARM platform. Installing binutils was successful but gcc fails. Host platform linux x86_64 binutils version to cross build:2.42 gcc version to cross build: 14.1.0 What I did ( sorry, very detailed, maybe I did something totally stupid... ) First, I created a docker image with the following Dockerfile to get a root filesystem: Dockerfile: ######### FROM debian:8 as base # Needed for old Debians RUN printf "deb [trusted=yes] http://archive.debian.org/debian jessie main\ndeb [trusted=yes] http://archive.debian.org/debian-security jessie/updates main" > /etc/apt/sources.list # Install dependencies available in the Debian repos RUN apt-get update && \ apt-get install -y \ build-essential automake libtool cmake wget \ libsnmp-dev libdb-dev \ libssl-dev \ libopus-dev libasound2-dev vim ############# > podman build . --arch=arm and export the file system to my host filesystem: > podman image mount and copied the root filesystem simply with cp -pr <path>/* <some/place/at/my/host> I now used a simple Makefile for installing binutils: ######### # cross compile binutils BINUTILS_VERSION=2.42 GCC_VERSION=14.1.0 #http://ftp.fu-berlin.de/gnu/binutils/ binutils-2.42.tar.xz binutils_cross: wget -nc http://ftp.fu-berlin.de/gnu/binutils/binutils-$(BINUTILS_VERSION).tar.xz tar xf binutils-$(BINUTILS_VERSION).tar.xz (\ cd binutils-$(BINUTILS_VERSION); \ mkdir build_armv7 ; \ cd build_armv7; \ ../configure --prefix=/opt/armv7_$(GCC_VERSION) --with-sysroot=/opt/podman_debian8/merged --enable-multiarch --with-fpu=vfpv3-d16 --with-mode=thumb --with-arch=armv7-a --target=arm-linux-gnueabihf ; \ make; \ sudo make install; \ ) ############## binutils installation works without any error messages. Now I tried to install gcc with this part of the install Makefile: ######### gcc_cross: wget -nc http://ftp.fu-berlin.de/gnu/gcc/gcc-$(GCC_VERSION)/gcc-$(GCC_VERSION).tar.xz tar xf gcc-$(GCC_VERSION).tar.xz ( \ cd gcc-$(GCC_VERSION); \ ./contrib/download_prerequisites; \ mkdir build_armv7;\ cd build_armv7;\ ../configure --prefix=/opt/armv7_$(GCC_VERSION) --enable-languages=c,c++ --with-sysroot=/opt/podman_debian8/merged --enable-multiarch --with-fpu=vfpv3-d16 --with-mode=thumb --with-arch=armv7-a --target=arm-linux-gnueabihf --disable-multilib; \ make -j6;\ sudo make install;\ ) ########### make[3]: *** [Makefile:2998: build/gengenrtl.o] Error 1 make[3]: *** Waiting for unfinished jobs.... yes checking how to run the C preprocessor... /opt/armv7_14.1.0/arm-linux-gnueabihf/bin/as: unrecognized option '--64' make[3]: *** [Makefile:2998: build/genhooks.o] Error 1 /opt/armv7_14.1.0/arm-linux-gnueabihf/bin/as: unrecognized option '--64' make[3]: *** [Makefile:2998: build/sort.o] Error 1 gcc -E /opt/armv7_14.1.0/arm-linux-gnueabihf/bin/as: unrecognized option '--64' make[3]: *** [Makefile:2998: build/genchecksum.o] Error 1 checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes /bin/sh ../../gcc/../move-if-change tmp-optionlist optionlist checking for stdlib.h... echo timestamp > s-options make[3]: Leaving directory '/home/krud/compiler_install/gcc-14.1.0/build_armv7/gcc' make[2]: *** [Makefile:4714: all-gcc] Error 2 I wonder why I see the "unrecognized option '--64'" message, as I try to cross build for arm32. Did I use some wrong configure options or have missed some? Maybe already in the first step while installing binutils? Thanks Klaus
