busybox: Add support for busybox-init

in config metadata we can configure busybox based init and device
initializer ( mdev ) using e.g.

VIRTUAL-RUNTIME_dev_manager = "busybox-mdev"
VIRTUAL-RUNTIME_login_manager = "busybox"
VIRTUAL-RUNTIME_init_manager = "busybox"
VIRTUAL-RUNTIME_initscripts = "initscripts"
VIRTUAL-RUNTIME_keymaps = "keymaps"
DISTRO_FEATURES_BACKFILL_CONSIDERED += "sysvinit"

busybox can be used to provide init system
combined with mdev it makes it a complete init
system for really tiny systems.

This patch uses above defines to configure features in busybox to enable
the init system and mdev in a configurable manner

(From OE-Core rev: 75cb4fe38fade382450c5f6f35d5dcf55962143e)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/meta/recipes-core/busybox/busybox.inc b/meta/recipes-core/busybox/busybox.inc
index 95411230b9..e5710f05f4 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -275,6 +275,21 @@ do_install () {
                        install -m 0755 ${WORKDIR}/mdev-mount.sh ${D}${sysconfdir}/mdev
                fi
         fi
+        if grep "CONFIG_INIT=y" ${B}/.config; then
+                install -D -m 0777 ${WORKDIR}/rcS ${D}${sysconfdir}/init.d/rcS
+                install -D -m 0777 ${WORKDIR}/rcK ${D}${sysconfdir}/init.d/rcK
+                install -D -m 0755 ${WORKDIR}/runlevel ${D}${base_sbindir}/runlevel
+                if grep "CONFIG_FEATURE_USE_INITTAB=y" ${B}/.config; then
+                        install -D -m 0777 ${WORKDIR}/inittab ${D}${sysconfdir}/inittab
+                        tmp="${SERIAL_CONSOLES}"
+                        for i in $tmp
+                        do
+                                j=`echo ${i} | sed s/\;/\ /g`
+                                label=`echo ${i} | sed -e 's/tty//' -e 's/^.*;//' -e 's/;.*//'`
+                                echo "tty$label::respawn:${base_sbindir}/getty ${j}" >> ${D}${sysconfdir}/inittab
+                        done
+                fi
+        fi
 
     if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
         if grep -q "CONFIG_SYSLOGD=y" ${B}/.config; then