initial buildroot for linux 5.15

package/initscripts/Config.in

@@ -0,0 +1,4 @@
+config BR2_PACKAGE_INITSCRIPTS
+	bool
+	help
+	  The basics startup scripts for both SysV and Busybox

package/initscripts/init.d/rcK

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+
+# Stop all init scripts in /etc/init.d
+# executing them in reversed numerical order.
+#
+for i in $(ls -r /etc/init.d/S??*) ;do
+
+     # Ignore dangling symlinks (if any).
+     [ ! -f "$i" ] && continue
+
+     case "$i" in
+	*.sh)
+	    # Source shell script for speed.
+	    (
+		trap - INT QUIT TSTP
+		set stop
+		. $i
+	    )
+	    ;;
+	*)
+	    # No sh extension, so fork subprocess.
+	    $i stop
+	    ;;
+    esac
+done
+

package/initscripts/init.d/rcS

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+
+# Start all init scripts in /etc/init.d
+# executing them in numerical order.
+#
+for i in /etc/init.d/S??* ;do
+
+     # Ignore dangling symlinks (if any).
+     [ ! -f "$i" ] && continue
+
+     case "$i" in
+	*.sh)
+	    # Source shell script for speed.
+	    (
+		trap - INT QUIT TSTP
+		set start
+		. $i
+	    )
+	    ;;
+	*)
+	    # No sh extension, so fork subprocess.
+	    $i start
+	    ;;
+    esac
+done
+

package/initscripts/initscripts.mk

@@ -0,0 +1,12 @@
+################################################################################
+#
+# initscripts
+#
+################################################################################
+
+define INITSCRIPTS_INSTALL_TARGET_CMDS
+	mkdir -p $(TARGET_DIR)/etc/init.d
+	$(INSTALL) -D -m 0755 package/initscripts/init.d/* $(TARGET_DIR)/etc/init.d/
+endef
+
+$(eval $(generic-package))