mirror of
https://gitlab.postmarketos.org/postmarketOS/pmbootstrap.git
synced 2025-07-13 03:19:47 +03:00
9cf3e741a1
The armhf hostspec triplet has changed during the Alpine 3.6 release cylcle. It was recently adjusted in abuild's arch_to_hostspec() function [1]. Cross compilers in postmarketOS that were built with a previous version of abuild still have the old hostspec in the name. Since we use the same function in envkernel.sh to get the cross compiler name, it is currently failing here for armhf. We can't simply bump the pkgrel to force a rebuild, because that would make them go out of sync with the upstrem (non-cross) compiler packages. That would break the workflow for fixing incompatibilities with Alpine (see [2]). Add a workaround to envkernel.sh, to detect if the installed armhf cross compiler binaries still have the old name. [1] https://github.com/alpinelinux/abuild/pull/56 [2] https://wiki.postmarketos.org/wiki/Repository_maintenance
333 lines
7.7 KiB
Bash
333 lines
7.7 KiB
Bash
#!/bin/sh
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# Copyright 2019 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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#
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# usage example:
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# $ cd ~/code/linux
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# $ source ~/code/pmbootstrap/helpers/envkernel.sh
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check_kernel_folder() {
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[ -e "Kbuild" ] && return
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echo "ERROR: This folder is not a linux source tree: $PWD"
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return 1
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}
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clean_kernel_src_dir() {
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if [ -f ".config" ] || [ -d "include/config" ]; then
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echo "Source directory is not clean, running 'make mrproper'."
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tmp_dir=""
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if [ -d ".output" ]; then
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echo " * Preserving existing build output."
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tmp_dir=$(mktemp -d)
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sudo mv ".output" "$tmp_dir"
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fi;
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# backslash is prefixed to disable the alias
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# shellcheck disable=SC1001
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\make mrproper
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if [ ! -z "$tmp_dir" ]; then
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sudo mv "$tmp_dir/.output" ".output"
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sudo rmdir "$tmp_dir"
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fi;
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fi;
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}
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export_pmbootstrap_dir() {
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# Get pmbootstrap dir based on this script's location
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# See also: <https://stackoverflow.com/a/29835459>
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# shellcheck disable=SC2039
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if [ -n "${BASH_SOURCE[0]}" ]; then
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script_dir="$(dirname "${BASH_SOURCE[0]}")"
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else
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script_dir="$(dirname "$1")"
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fi
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# Fail with debug information
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# shellcheck disable=SC2155
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export pmbootstrap_dir=$(realpath "$script_dir/..")
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if ! [ -e "$pmbootstrap_dir/pmbootstrap.py" ]; then
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echo "ERROR: Failed to get the script's location with your shell."
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echo "Please adjust export_pmbootstrap_dir in envkernel.sh. Debug info:"
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echo "\$1: $1"
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echo "\$pmbootstrap_dir: $pmbootstrap_dir"
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return 1
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fi
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}
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set_alias_pmbootstrap() {
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pmbootstrap="$pmbootstrap_dir"/pmbootstrap.py
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# shellcheck disable=SC2139
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alias pmbootstrap="\"$pmbootstrap\""
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if [ -e ~/.config/pmbootstrap.cfg ]; then
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"$pmbootstrap" work_migrate
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else
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echo "NOTE: First run of pmbootstrap, running 'pmbootstrap init'"
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"$pmbootstrap" init
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fi
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}
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export_chroot_device_deviceinfo() {
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chroot="$("$pmbootstrap" config work)/chroot_native"
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device="$("$pmbootstrap" config device)"
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deviceinfo="$pmbootstrap_dir/aports/device/device-$device/deviceinfo"
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export chroot device deviceinfo
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}
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check_device() {
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[ -e "$deviceinfo" ] && return
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echo "ERROR: Please select a valid device in 'pmbootstrap init'"
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return 1
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}
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initialize_chroot() {
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gcc_pkgname="gcc"
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if [ "$gcc6_arg" = "1" ]; then
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gcc_pkgname="gcc6"
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fi
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# Don't initialize twice
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flag="$chroot/tmp/envkernel/${gcc_pkgname}_setup_done"
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[ -e "$flag" ] && return
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# Install needed packages
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echo "Initializing Alpine chroot (details: 'pmbootstrap log')"
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# shellcheck disable=SC2154
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"$pmbootstrap" -q chroot -- apk -q add \
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abuild \
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bc \
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binutils-"$deviceinfo_arch" \
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binutils \
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bison \
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flex \
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"$gcc_pkgname"-"$deviceinfo_arch" \
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"$gcc_pkgname" \
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linux-headers \
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openssl-dev \
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make \
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musl-dev \
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ncurses-dev \
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perl \
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xz || return 1
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# Create /mnt/linux
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sudo mkdir -p "$chroot/mnt/linux"
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# Mark as initialized
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mkdir -p "$chroot/tmp/envkernel"
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touch "$flag"
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}
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mount_kernel_source() {
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if [ -e "$chroot/mnt/linux/Kbuild" ]; then
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sudo umount "$chroot/mnt/linux"
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fi
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sudo mount --bind "$PWD" "$chroot/mnt/linux"
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}
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create_output_folder() {
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[ -d "$chroot/mnt/linux/.output" ] && return
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mkdir -p ".output"
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"$pmbootstrap" -q chroot -- chown -R pmos:pmos "/mnt/linux/.output"
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}
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set_alias_make() {
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# Cross compiler prefix
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# shellcheck disable=SC1090
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prefix="$(. "$chroot/usr/share/abuild/functions.sh";
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arch_to_hostspec "$deviceinfo_arch")"
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# Kernel architecture
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case "$deviceinfo_arch" in
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aarch64*) arch="arm64" ;;
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arm*) arch="arm" ;;
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x86_64) arch="x86_64" ;;
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x86) arch="x86" ;;
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esac
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# Check if it's a cross compile
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host_arch="$(uname -m)"
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is_cc=1
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# Match arm* architectures
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# shellcheck disable=SC2039
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arch_substr="${host_arch:0:3}"
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if [ "$arch" = "$host_arch" ] || \
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([ "$arch_substr" = "arm" ] && [ "$arch_substr" = "$arch" ]); then
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is_cc=0
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fi
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if [ "$gcc6_arg" = "1" ]; then
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cc="gcc6-${prefix}-gcc"
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hostcc="gcc6-gcc"
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cross_compiler="/usr/bin/gcc6-$prefix-"
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else
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cc="${prefix}-gcc"
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hostcc="gcc"
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cross_compiler="/usr/bin/$prefix-"
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fi
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# Workaround for issue #1784 (can be removed after the following packages
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# have been rebuilt with current abuild: binutils-armhf, gcc-armhf,
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# gcc4-armhf, gcc6-armhf, musl-armhf)
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if [ "$deviceinfo_arch" = "armhf" ] \
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&& ! [ -e "${chroot}${cross_compiler}gcc" ]; then
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echo "NOTE: using old armhf cross compiler name (#1784)"
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_old="armv6-alpine-linux-muslgnueabihf"
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_new="armv6-alpine-linux-musleabihf"
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cc="$(echo "$cc" | sed "s/$_new/$_old/")"
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cross_compiler="$(echo "$cross_compiler" | sed "s/$_new/$_old/")"
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unset _old _new
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fi
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# Build make command
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cmd="echo '*** pmbootstrap envkernel.sh active for $PWD! ***';"
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cmd="$cmd pmbootstrap -q chroot --user --"
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cmd="$cmd ARCH=$arch"
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if [ "$is_cc" = 1 ]; then
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cmd="$cmd CROSS_COMPILE=$cross_compiler"
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fi
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cmd="$cmd make -C /mnt/linux O=/mnt/linux/.output"
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cmd="$cmd CC=$cc HOSTCC=$hostcc"
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# shellcheck disable=SC2139
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alias make="$cmd"
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unset cmd
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# Build run-script command
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cmd="_run_script() {"
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cmd="$cmd echo '*** pmbootstrap envkernel.sh active for $PWD! ***';"
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cmd="$cmd _script=\"\$1\";"
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cmd="$cmd if [ -e \"\$_script\" ]; then"
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cmd="$cmd echo \"Running \$_script in the chroot native /mnt/linux/\";"
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cmd="$cmd pmbootstrap -q chroot --user -- sh -c \"cd /mnt/linux;"
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cmd="$cmd srcdir=/mnt/linux/ builddir=/mnt/linux/.output"
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cmd="$cmd ./\"\$_script\"\";"
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cmd="$cmd else"
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cmd="$cmd echo \"Error: \$_script not found.\";"
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cmd="$cmd fi;"
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cmd="$cmd };"
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cmd="$cmd _run_script \"\$@\""
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# shellcheck disable=SC2139
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alias run-script="$cmd"
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unset cmd
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}
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set_alias_pmbroot_kernelroot() {
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# shellcheck disable=SC2139
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alias pmbroot="cd '$pmbootstrap_dir'"
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# shellcheck disable=SC2139
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alias kernelroot="cd '$PWD'"
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}
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cross_compiler_version() {
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pmbootstrap chroot --user -- "${cross_compiler}gcc" --version \
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2> /dev/null | grep "^.*gcc " | \
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awk -F'[()]' '{ print $1 "("$2")" }'
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}
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print_usage() {
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# shellcheck disable=SC2039
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if [ -n "${BASH_SOURCE[0]}" ]; then
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echo "usage: source $(basename "${BASH_SOURCE[0]}")"
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else
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echo "usage: source $(basename "$1")"
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fi
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echo "optional arguments:"
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echo " --fish Print fish alias syntax (internally used)"
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echo " --gcc6 Use GCC6 cross compiler"
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echo " --help Show this help message"
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}
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parse_args() {
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unset fish_arg
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unset gcc6_arg
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while [ "${1:-}" != "" ]; do
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case $1 in
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--fish)
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fish_arg="$1"
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shift
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;;
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--gcc6)
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gcc6_arg=1
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shift
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;;
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--help)
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shift
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return 0
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;;
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*)
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echo "Invalid argument: $1"
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shift
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return 0
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;;
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esac
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done
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return 1
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}
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main() {
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# Stop executing once a function fails
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# shellcheck disable=SC1090
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if check_kernel_folder \
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&& clean_kernel_src_dir \
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&& export_pmbootstrap_dir "$1" \
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&& set_alias_pmbootstrap \
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&& export_chroot_device_deviceinfo \
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&& check_device \
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&& . "$deviceinfo" \
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&& initialize_chroot \
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&& mount_kernel_source \
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&& create_output_folder \
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&& set_alias_make \
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&& set_alias_pmbroot_kernelroot; then
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# Success
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echo "pmbootstrap envkernel.sh activated successfully."
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echo " * kernel source: $PWD"
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echo " * output folder: $PWD/.output"
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echo " * architecture: $arch ($device is $deviceinfo_arch)"
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echo " * cross compile: $(cross_compiler_version)"
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echo " * aliases: make, kernelroot, pmbootstrap, pmbroot," \
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"run-script (see 'type make' etc.)"
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else
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# Failure
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echo "See also: <https://postmarketos.org/troubleshooting>"
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return 1
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fi
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}
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# Print fish alias syntax (when called from envkernel.fish)
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fish_compat() {
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[ "$1" = "--fish" ] || return
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for name in make kernelroot pmbootstrap pmbroot; do
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echo "alias $(alias $name | sed 's/=/ /')"
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done
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}
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if parse_args "$@"; then
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print_usage "$0"
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return 1
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fi
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# Run main() with all output redirected to stderr
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# Afterwards print fish compatible syntax to stdout
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main "$0" >&2 && fish_compat "$fish_arg"
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