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busybox: use ttyrun to run getty only if the terminal exists

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Wrap calls to start_getty with ttyrun, so that getty isn't started if
the device doesn't exist.  As we know start_getty is only called when
the device exists we can remove the partial workaround for this problem
in that scripts too.

This neatly obsoletes SERIAL_CONSOLES_CHECK, whose sole purpose was to
check what terminals are present at boot and rewrite inittab.  Notably,
this meant that SERIAL_CONSOLES_CHECK made using a read-only rootfs
impossible.

(From OE-Core rev: 950ecaabc04836efc346be0ac7e0331e2378872b)

(From OE-Core rev: 6c655441ff5cd0d8877891ff37f8cfa983363a2a)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ross Burton
2023-10-06 12:22:01 +01:00
committed by Richard Purdie
parent 42d35e89a3
commit cedd01f57e
1 changed files with 12 additions and 34 deletions
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46
meta/recipes-core/busybox/busybox-inittab_1.36.1.bb
View File

@@ -15,14 +15,17 @@ do_compile() {
do_install() {
install -d ${D}${sysconfdir}
install -D -m 0644 ${WORKDIR}/inittab ${D}${sysconfdir}/inittab
tmp="${SERIAL_CONSOLES}"
[ -n "$tmp" ] && echo >> ${D}${sysconfdir}/inittab
for i in $tmp
do
j=`echo ${i} | sed s/\;/\ /g`
id=`echo ${i} | sed -e 's/^.*;//' -e 's/;.*//'`
echo "$id::respawn:${base_sbindir}/getty ${j}" >> ${D}${sysconfdir}/inittab
done
CONSOLES="${SERIAL_CONSOLES}"
for s in $CONSOLES
do
speed=$(echo $s | cut -d\; -f 1)
device=$(echo $s | cut -d\; -f 2)
label=$(echo $device | sed -e 's/tty//' | tail --bytes=5)
echo "$label::respawn:${sbindir}/ttyrun $device ${base_bindir}/start_getty $speed $device vt102" >> ${D}${sysconfdir}/inittab
done
if [ "${USE_VT}" = "1" ]; then
cat <<EOF >>${D}${sysconfdir}/inittab
# ${base_sbindir}/getty invocations for the runlevels.
@@ -45,32 +48,6 @@ EOF
}
pkg_postinst:${PN} () {
# run this on host and on target
if [ "${SERIAL_CONSOLES_CHECK}" = "" ]; then
exit 0
fi
}
pkg_postinst_ontarget:${PN} () {
# run this on the target
if [ -e /proc/consoles ]; then
tmp="${SERIAL_CONSOLES_CHECK}"
for i in $tmp
do
j=`echo ${i} | sed -e s/^.*\;//g -e s/\:.*//g`
k=`echo ${i} | sed s/^.*\://g`
if [ -z "`grep ${j} /proc/consoles`" ]; then
if [ -z "${k}" ] || [ -z "`grep ${k} /proc/consoles`" ] || [ ! -e /dev/${j} ]; then
sed -i -e /^.*${j}\ /d -e /^.*${j}$/d /etc/inittab
fi
fi
done
kill -HUP 1
else
exit 1
fi
}
# SERIAL_CONSOLES is generally defined by the MACHINE .conf.
# Set PACKAGE_ARCH appropriately.
@@ -79,6 +56,7 @@ PACKAGE_ARCH = "${MACHINE_ARCH}"
FILES:${PN} = "${sysconfdir}/inittab"
CONFFILES:${PN} = "${sysconfdir}/inittab"
RDEPENDS:${PN} = "ttyrun"
RCONFLICTS:${PN} = "sysvinit-inittab"
USE_VT ?= "1"