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authorLuke Shumaker <lukeshu@sbcglobal.net>2016-05-09 22:48:09 -0400
committerLuke Shumaker <lukeshu@sbcglobal.net>2016-05-09 22:48:09 -0400
commit9f16ca1852e0461f493ccfbd33792623774d6e1e (patch)
treea1c70f43c4046fa53b7bd2d7365df4358ee344f7 /src
parent4c55c0216c1efe94eeb9cad91b6052e463c9d57b (diff)
librechroot: Support using qemu for ARM builds on x86 via binfmt_misc.
Diffstat (limited to 'src')
-rw-r--r--src/chroot-tools/arch-nspawn.patch61
-rwxr-xr-xsrc/chroot-tools/librechroot39
-rw-r--r--src/chroot-tools/mkarchroot.patch45
3 files changed, 129 insertions, 16 deletions
diff --git a/src/chroot-tools/arch-nspawn.patch b/src/chroot-tools/arch-nspawn.patch
index 6b32f2b..2b46ecb 100644
--- a/src/chroot-tools/arch-nspawn.patch
+++ b/src/chroot-tools/arch-nspawn.patch
@@ -1,5 +1,5 @@
---- arch-nspawn.in 2015-05-24 19:32:57.117177433 -0600
-+++ arch-nspawn.ugly 2015-05-24 23:40:04.031482147 -0600
+--- arch-nspawn.in 2016-05-09 18:37:11.684488405 -0400
++++ arch-nspawn.ugly 2016-05-09 22:36:00.821147136 -0400
@@ -1,4 +1,6 @@
#!/bin/bash
+# License: GNU GPLv2
@@ -7,16 +7,61 @@
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
-@@ -88,10 +90,11 @@
- if [[ ! -f "$working_dir/.arch-chroot" ]]; then
- die "'%s' does not appear to be an Arch chroot." "$working_dir"
- elif [[ $(cat "$working_dir/.arch-chroot") != $CHROOT_VERSION ]]; then
-- die "chroot '%s' is not at version %s. Please rebuild." "$working_dir" "$CHROOT_VERSION"
-+ die "chroot '%s' is not at version %s. Please rebuild." "$working_dir" "$CHROOT_VERSION"
+@@ -14,6 +16,8 @@
+
+ working_dir=''
+
++files=()
++
+ usage() {
+ echo "Usage: ${0##*/} [options] working-dir [systemd-nspawn arguments]"
+ echo "A wrapper around systemd-nspawn. Provides support for pacman."
+@@ -22,17 +26,21 @@
+ echo ' -C <file> Location of a pacman config file'
+ echo ' -M <file> Location of a makepkg config file'
+ echo ' -c <dir> Set pacman cache'
++ echo ' -f <file> Copy file from the host to the chroot'
++ echo ' -s Do not run setarch'
+ echo ' -h This message'
+ exit 1
+ }
+
+ orig_argv=("$@")
+
+-while getopts 'hC:M:c:' arg; do
++while getopts 'hC:M:c:f:s' arg; do
+ case "$arg" in
+ C) pac_conf="$OPTARG" ;;
+ M) makepkg_conf="$OPTARG" ;;
+ c) cache_dir="$OPTARG" ;;
++ f) files+=("$OPTARG") ;;
++ s) nosetarch=1 ;;
+ h|?) usage ;;
+ *) error "invalid argument '%s'" "$arg"; usage ;;
+ esac
+@@ -78,6 +86,12 @@
+ [[ -n $pac_conf ]] && cp $pac_conf "$working_dir/etc/pacman.conf"
+ [[ -n $makepkg_conf ]] && cp $makepkg_conf "$working_dir/etc/makepkg.conf"
+
++ local file
++ for file in "${files[@]}"; do
++ mkdir -p "$(dirname "$working_dir$file")"
++ cp -T "$file" "$working_dir$file"
++ done
++
+ sed -r "s|^#?\\s*CacheDir.+|CacheDir = $(echo -n ${cache_dirs[@]})|g" -i "$working_dir/etc/pacman.conf"
+ }
+ # }}}
+@@ -92,9 +106,12 @@
fi
build_mount_args
+cache_dirs+=('/repo/')
copy_hostconf
++if [[ -z $nosetarch ]]; then
eval $(grep '^CARCH=' "$working_dir/etc/makepkg.conf")
++fi
+
+ exec ${CARCH:+setarch "$CARCH"} systemd-nspawn -q \
+ -D "$working_dir" \
diff --git a/src/chroot-tools/librechroot b/src/chroot-tools/librechroot
index e6b3a3a..cc416d5 100755
--- a/src/chroot-tools/librechroot
+++ b/src/chroot-tools/librechroot
@@ -49,28 +49,59 @@ readonly _makechrootpkg="$(librelib chroot/makechrootpkg.sh)"
arch_nspawn_flags=()
sysd_nspawn_flags=()
+hack_arch_nspawn_flags() {
+ local copydir="$1"
+
+ local makepkg_conf="$copydir/etc/makepkg.conf"
+
+ OPTIND=1
+ set -- ${arch_nspawn_flags+"${arch_nspawn_flags[@]}"}
+ while getopts 'hC:M:c:f:s' arg; do
+ case "$arg" in
+ M) makepkg_conf="$OPTARG" ;;
+ *) :;;
+ esac
+ done
+
+ local CARCH
+ if [[ -f "$makepkg_conf" ]]; then
+ eval $(grep '^CARCH=' "$makepkg_conf")
+ else
+ CARCH="$(uname -m)"
+ fi
+
+ if [[ "$CARCH" == armv7h ]] && ! setarch armv7l 2>/dev/null; then
+ arch_nspawn_flags+=(-f /usr/bin/qemu-arm-static -s)
+ fi
+}
+
# Usage: arch-nspawn $copydir $cmd...
-arch-nspawn() {
+arch-nspawn() (
local copydir=$1; shift
local cmd=("$@")
+ hack_arch_nspawn_flags "$copydir"
+
"$_arch_nspawn" \
${arch_nspawn_flags+"${arch_nspawn_flags[@]}"} \
"$copydir" \
${sysd_nspawn_flags+"${sysd_nspawn_flags[@]}"} \
-- \
"${cmd[@]}"
-}
+)
# Usage: mkarchroot $copydir $pkgs...
-mkarchroot() {
+mkarchroot() (
local copydir=$1; shift
local pkgs=("$@")
+
+ hack_arch_nspawn_flags "$copydir"
+
unshare -m "$_mkarchroot" \
${arch_nspawn_flags+"${arch_nspawn_flags[@]}"} \
"$copydir" \
"${pkgs[@]}"
-}
+)
# Usage: _makechrootpkg $function $arguments...
# Don't load $_makechrootpkg directly because it doesn't work with -euE
diff --git a/src/chroot-tools/mkarchroot.patch b/src/chroot-tools/mkarchroot.patch
index cb1acc2..3882ec6 100644
--- a/src/chroot-tools/mkarchroot.patch
+++ b/src/chroot-tools/mkarchroot.patch
@@ -1,5 +1,5 @@
---- mkarchroot.in 2014-11-05 18:57:12.175995949 -0500
-+++ mkarchroot.ugly 2014-11-05 18:57:12.209328664 -0500
+--- mkarchroot.in 2016-04-15 17:38:00.221067734 -0400
++++ mkarchroot.ugly 2016-05-09 22:36:18.284175885 -0400
@@ -1,4 +1,6 @@
#!/bin/bash
+# License: GNU GPLv2
@@ -7,10 +7,46 @@
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
-@@ -68,6 +70,11 @@
+@@ -14,23 +16,29 @@
+
+ working_dir=''
+
++files=()
++
+ usage() {
+ echo "Usage: ${0##*/} [options] working-dir package-list..."
+ echo ' options:'
+ echo ' -C <file> Location of a pacman config file'
+ echo ' -M <file> Location of a makepkg config file'
+ echo ' -c <dir> Set pacman cache'
++ echo ' -f <file> Copy file from the host to the chroot'
++ echo ' -s Do not run setarch'
+ echo ' -h This message'
+ exit 1
+ }
+
+ orig_argv=("$@")
+
+-while getopts 'hC:M:c:' arg; do
++while getopts 'hC:M:c:f:s' arg; do
+ case "$arg" in
+ C) pac_conf="$OPTARG" ;;
+ M) makepkg_conf="$OPTARG" ;;
+ c) cache_dir="$OPTARG" ;;
++ f) files+=("$OPTARG") ;;
++ s) nosetarch=1 ;;
+ h|?) usage ;;
+ *) error "invalid argument '%s'" "$arg"; usage ;;
+ esac
+@@ -68,6 +76,16 @@
chmod 0755 "$working_dir"
fi
++for file in "${files[@]}"; do
++ mkdir -p "$(dirname "$working_dir$file")"
++ cp "$file" "$working_dir$file"
++done
++
+_env=()
+while read -r varname; do
+ _env+=("$varname=${!varname}")
@@ -19,12 +55,13 @@
pacstrap -GMcd ${pac_conf:+-C "$pac_conf"} "$working_dir" \
"${cache_dirs[@]/#/--cachedir=}" "$@" || die 'Failed to install all packages'
-@@ -75,7 +82,7 @@
+@@ -75,7 +93,8 @@
echo 'LANG=C' > "$working_dir/etc/locale.conf"
echo "$CHROOT_VERSION" > "$working_dir/.arch-chroot"
-exec arch-nspawn \
+exec "$(librelib chroot/arch-nspawn)" \
++ ${nosetarch:+-s} \
${pac_conf:+-C "$pac_conf"} \
${makepkg_conf:+-M "$makepkg_conf"} \
${cache_dir:+-c "$cache_dir"} \