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https://github.com/systemd/systemd.git
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175 lines
6.6 KiB
Bash
Executable File
175 lines
6.6 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -e
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# This is a build script for OS image generation using mkosi (https://github.com/systemd/mkosi).
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# Simply invoke "mkosi" in the project directory to build an OS image.
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ASAN_OPTIONS=strict_string_checks=1:detect_stack_use_after_return=1:check_initialization_order=1:strict_init_order=1:disable_coredump=0:use_madv_dontdump=1
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UBSAN_OPTIONS=print_stacktrace=1:print_summary=1:halt_on_error=1
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# On Fedora "ld" is (unfortunately — if you ask me) managed via
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# "alternatives". Since we'd like to support building images in environments
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# with only /usr/ around (e.g. mkosi's UsrOnly=1 option), we have the problem
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# that /usr/bin/ld is a symlink that points to a non-existing file in
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# /etc/alternative/ in this mode. Let's work around this for now by manually
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# redirect "ld" to "ld.bfd", i.e. circumventing the /usr/bin/ld symlink.
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if [ ! -x /usr/bin/ld ] && [ -x /usr/bin/ld.bfd ]; then
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mkdir -p "$HOME"/bin
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ln -s /usr/bin/ld.bfd "$HOME"/bin/ld
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PATH="$HOME/bin:$PATH"
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fi
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# If mkosi.builddir/ exists mkosi will set $BUILDDIR to it, let's then use it
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# as out-of-tree build dir. Otherwise, let's make up our own builddir.
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[ -z "$BUILDDIR" ] && BUILDDIR=build
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# Meson uses Python 3 and requires a locale with an UTF-8 character map.
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# Not running under UTF-8 makes the `ninja test` step break with a CodecError.
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# So let's ensure we're running under UTF-8.
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#
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# If our current locale already is UTF-8, then we don't need to do anything:
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if [ "$(locale charmap 2>/dev/null)" != "UTF-8" ] ; then
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# Try using C.UTF-8 locale, if available. This locale is not shipped
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# by upstream glibc, so it's not available in all distros.
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# (In particular, it's not available in Arch Linux.)
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if locale -a | grep -q -E "C.UTF-8|C.utf8"; then
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export LC_CTYPE=C.UTF-8
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# Finally, try something like en_US.UTF-8, which should be
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# available in Arch Linux, but is not present in Debian's
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# minimal image in our mkosi config.
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elif locale -a | grep -q en_US.utf8; then
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export LC_CTYPE=en_US.UTF-8
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else
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# If nothing works, fail early.
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echo "*** Could not find a valid locale that supports UTF-8. ***" >&2
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exit 1
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fi
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fi
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if [ ! -f "$BUILDDIR"/build.ninja ] ; then
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sysvinit_path=$(realpath /etc/init.d)
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init_path=$(realpath /sbin/init 2>/dev/null)
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if [ -z "$init_path" ] ; then
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rootprefix=""
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else
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rootprefix=${init_path%/lib/systemd/systemd}
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rootprefix=/${rootprefix#/}
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fi
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meson "$BUILDDIR" \
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-D "sysvinit-path=$sysvinit_path" \
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-D "rootprefix=$rootprefix" \
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-D man=false \
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-D translations=false \
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-D version-tag="${VERSION_TAG}" \
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-D mode=developer \
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-D b_sanitize="${SANITIZERS:-none}" \
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-D install-tests=true
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fi
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cd "$BUILDDIR"
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ninja "$@"
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if [ "$WITH_TESTS" = 1 ] ; then
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for id in 1 2 3; do
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getent group $id >/dev/null || groupadd -g $id testgroup$id
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done
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if [ -n "$SANITIZERS" ]; then
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export ASAN_OPTIONS="$ASAN_OPTIONS"
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export UBSAN_OPTIONS="$UBSAN_OPTIONS"
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TIMEOUT_MULTIPLIER=3
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else
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TIMEOUT_MULTIPLIER=1
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fi
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meson test --timeout-multiplier=$TIMEOUT_MULTIPLIER
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fi
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cd "$SRCDIR"
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# Ubuntu Focal is stuck with meson 0.53.0.
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if [ "$(meson -v | cut -d . -f 2)" -gt 53 ] ; then
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meson install -C "$BUILDDIR" --quiet --no-rebuild --only-changed
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else
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meson install -C "$BUILDDIR" --no-rebuild --only-changed
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fi
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mkdir -p "$DESTDIR"/etc
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cat >"$DESTDIR"/etc/issue <<EOF
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\S (built from systemd tree)
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Kernel \r on an \m (\l)
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EOF
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if [ -n "$IMAGE_ID" ] ; then
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mkdir -p "$DESTDIR"/usr/lib
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sed -n \
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-e '/^IMAGE_ID=/!p' \
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-e "\$aIMAGE_ID=$IMAGE_ID" <"/usr/lib/os-release" >"${DESTDIR}/usr/lib/os-release"
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OSRELEASEFILE="$DESTDIR"/usr/lib/os-release
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else
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OSRELEASEFILE=/usr/lib/os-release
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fi
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if [ -n "$IMAGE_VERSION" ] ; then
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mkdir -p "$DESTDIR"/usr/lib
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sed -n \
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-e '/^IMAGE_VERSION=/!p' \
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-e "\$aIMAGE_VERSION=$IMAGE_VERSION" <$OSRELEASEFILE >"/tmp/os-release.tmp"
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cat /tmp/os-release.tmp > "$DESTDIR"/usr/lib/os-release
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rm /tmp/os-release.tmp
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fi
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# If $CI_BUILD is set, copy over the CI service which executes a service check
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# after boot and then shuts down the machine
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if [ -n "$CI_BUILD" ]; then
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mkdir -p "$DESTDIR/usr/lib/systemd/system"
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cp -v "$SRCDIR/test/mkosi-check-and-shutdown.service" "$DESTDIR/usr/lib/systemd/system/mkosi-check-and-shutdown.service"
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cp -v "$SRCDIR/test/mkosi-check-and-shutdown.sh" "$DESTDIR/usr/lib/systemd/mkosi-check-and-shutdown.sh"
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chmod +x "$DESTDIR/usr/lib/systemd/mkosi-check-and-shutdown.sh"
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fi
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if [ -n "$SANITIZERS" ]; then
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LD_PRELOAD=$(ldd $BUILDDIR/systemd | grep libasan.so | awk '{print $3}')
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mkdir -p "$DESTDIR/etc/systemd/system.conf.d"
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cat > "$DESTDIR/etc/systemd/system.conf.d/10-asan.conf" <<EOF
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[Manager]
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ManagerEnvironment=ASAN_OPTIONS=$ASAN_OPTIONS\\
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UBSAN_OPTIONS=$UBSAN_OPTIONS\\
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LD_PRELOAD=$LD_PRELOAD
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DefaultEnvironment=ASAN_OPTIONS=$ASAN_OPTIONS\\
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UBSAN_OPTIONS=$UBSAN_OPTIONS\\
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LD_PRELOAD=$LD_PRELOAD
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EOF
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# ASAN logs to stderr by default. However, journald's stderr is connected to /dev/null, so we lose
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# all the ASAN logs. To rectify that, let's connect journald's stdout to the console so that any
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# sanitizer failures appear directly on the user's console.
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mkdir -p "$DESTDIR/etc/systemd/system/systemd-journald.service.d"
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cat > "$DESTDIR/etc/systemd/system/systemd-journald.service.d/10-stdout-tty.conf" <<EOF
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[Service]
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StandardOutput=tty
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EOF
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# Both systemd and util-linux's login call vhangup() on /dev/console which disconnects all users.
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# This means systemd-journald can't log to /dev/console even if we configure `StandardOutput=tty`. As
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# a workaround, we modify console-getty.service to disable systemd's vhangup() and disallow login
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# from calling vhangup() so that journald's ASAN logs correctly end up in the console.
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mkdir -p "$DESTDIR/etc/systemd/system/console-getty.service.d"
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cat > "$DESTDIR/etc/systemd/system/console-getty.service.d/10-no-vhangup.conf" <<EOF
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[Service]
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TTYVHangup=no
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CapabilityBoundingSet=~CAP_SYS_TTY_CONFIG
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EOF
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fi
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