This script is also available from the SlackDocs Project:
https://docs.slackware.com/howtos:hardware:arm:gcc-11.x_aarch64_cross-compiler
This script downloads RPi Linux kernel source and the required binaries,
and configures, builds, patches, and installs a gcc 13.2.x aarch64-linux
cross-compiler on Slackware ARM current running on a Raspberry Pi 3/4.
You should create a 'build-dir' folder and copy this script to it
(e.g. /tmp/build-dir) and run it from there as a 'root' user.
~# chmod +x SARPi64.SlackBuild-gcc-13.2.0-aarch64-cc.sh
~# ./SARPi64.SlackBuild-gcc-13.2.0-aarch64-cc.sh
You may install the cross-compiler anywhere you like, as long as it can be
accessed by a normal user (i.e. not 'root'). The default is /tmp/.gcc-cross
but if this is not suitable then set your own installation directory with
INSTALL_PATH variable, in the script settings.
Ensure 'bison', 'flex', 'gawk', and 'git' are installed on your system
before running this script! Use these commands to check:
~# whereis gawk
~# whereis git
~# whereis bison
~# whereis flex
If you need to install any of the packages above [* check for updates!]:
http://slackware.uk/slackwarearm/slackwarearm-current/slackware/a/gawk*.txz
http://slackware.uk/slackwarearm/slackwarearm-current/slackware/d/git*.txz
http://slackware.uk/slackwarearm/slackwarearm-current/slackware/d/bison*.txz
http://slackware.uk/slackwarearm/slackwarearm-current/slackware/d/flex*.txz \
NB: The gcc package you compile should match your currently installed gcc
version. Use this command to check your current gcc version:
~# gcc --version
More recent gcc packages-versions may exist. You may wish to install them.
NB: if you use newer packages - glibc version MUST suit gcc version! The
thing to make sure is the release dates of gcc and glibc versions being as
close as possible.
binutils - https://ftp.gnu.org/gnu/binutils/
cloog - http://gcc.gnu.org/pub/gcc/infrastructure/
gcc - https://ftp.gnu.org/gnu/gcc/
glibc - https://ftp.gnu.org/gnu/glibc/
gmp - https://ftp.gnu.org/gnu/gmp/
isl - http://gcc.gnu.org/pub/gcc/infrastructure/
mpfr - https://ftp.gnu.org/gnu/mpfr/
mpc - https://ftp.gnu.org/gnu/mpc/ \
Before running this build script, export the INSTALL_PATH on your
root 'user'. Also do this each time you (re)boot your system so that
the location of the cross-compiler is always the first item in your
$PATH. You can also add this command to your ~/.profile as a more
permanent fixture. It's up to you if/how you do it. Example export
PATH command:
~# export PATH=/tmp/.gcc-cross/bin:$PATH \
To check that the INSTALL_PATH is in your $PATH use this command:
~# echo $PATH
This script was created on Slackware ARM and intended for research and
development towards a Slackware AArch64 port. This script may work on
other Linux distributions and hardware but it has not been tested and
therefore cannot be verified. It may be freely distributed, copied,
modified, or plagiarised in the hope that it will be of some use towards
building software for Slackware AArch64.
Edit the INSTALL_PATH variable within the script code before you run this
script. This is the location where the cross-compiler will be installed on
your system.
# Installation directory - edit INSTALL_PATH as required
INSTALL_PATH=/tmp/.gcc-cross
Using the cross-compiler to build, for example:
make -j$(nproc) ARCH=arm64 CROSS_COMPILE=aarch64-linux- LOCALVERSION="-YOUR_LOCAL_VERSION" Image
make -j$(nproc) ARCH=arm64 CROSS_COMPILE=aarch64-linux- dtbs
make -j$(nproc) ARCH=arm64 CROSS_COMPILE=aarch64-linux- headers_install INSTALL_HDR_PATH="/YOUR/HEADER/INSTALL/PATH/"
make -j$(nproc) ARCH=arm64 CROSS_COMPILE=aarch64-linux- LOCALVERSION="-YOUR_LOCAL_VERSION" modules
make -j$(nproc) ARCH=arm64 CROSS_COMPILE=aarch64-linux- LOCALVERSION="-YOUR_LOCAL_VERSION" modules_install