initial buildroot for linux 5.15

package/earlyoom/Config.in

@@ -0,0 +1,12 @@
+config BR2_PACKAGE_EARLYOOM
+	bool "earlyoom"
+	depends on BR2_USE_MMU
+	help
+	  Early OOM daemon for Linux.
+
+	  User space daemon for triggering Linux OOM killer
+	  before running out of memory, avoiding situations
+	  where the machine becomes unresponsive from out of
+	  control swapping.
+
+	  https://github.com/rfjakob/earlyoom

package/earlyoom/S02earlyoom

@@ -0,0 +1,49 @@
+#!/bin/sh
+
+DAEMON="earlyoom"
+PIDFILE="/var/run/$DAEMON.pid"
+
+EARLYOOM_ARGS=""
+
+[ -r "/etc/default/$DAEMON" ] && . "/etc/default/$DAEMON"
+
+start() {
+	printf() 'Starting %s: ' "$DAEMON"
+	start-stop-daemon -b -m -S -q -p "$PIDFILE" -x "/bin/$DAEMON" \
+	       -- $EARLYOOM_ARGS
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+stop() {
+	printf 'Stopping %s: ' "$DAEMON"
+	start-stop-daemon -K -q -p "$PIDFILE"
+	status=$?
+	if [ "$status" -eq 0 ]; then
+		rm -f "$PIDFILE"
+		echo "OK"
+	else
+		echo "FAIL"
+	fi
+	return "$status"
+}
+
+restart() {
+	stop
+	start
+}
+
+case "$1" in
+	start|stop|restart)
+		"$1";;
+	reload)
+		restart;;
+	*)
+		echo "Usage: $0 {start|stop|restart|reload}"
+		exit 1
+esac

package/earlyoom/earlyoom.hash

@@ -0,0 +1,4 @@
+# locally calculated
+sha256  227234cf9e77831c21c748bd361e1a7c415e158b96034eacd59e70586779bb6c  earlyoom-1.6.2.tar.gz
+# License files, locally calculated
+sha256  e730b3ec729de46d987ae73f30ed337e4cbe832f09205330acfa71848c6e0087  LICENSE

package/earlyoom/earlyoom.mk

@@ -0,0 +1,40 @@
+################################################################################
+#
+# earlyoom
+#
+################################################################################
+
+EARLYOOM_VERSION = 1.6.2
+EARLYOOM_SITE = $(call github,rfjakob,earlyoom,v$(EARLYOOM_VERSION))
+EARLYOOM_LICENSE = MIT
+EARLYOOM_LICENSE_FILES = LICENSE
+
+EARLYOOM_BUILD_TARGETS = earlyoom.service earlyoom
+EARLYOOM_INSTALL_TARGETS = install-default install-bin
+EARLYOOM_CFLAGS = '$(TARGET_CFLAGS) -std=gnu99 -DVERSION=\"1.6\"'
+
+EARLYOOM_MAKE_OPTS = \
+	$(TARGET_CONFIGURE_OPTS) \
+	PREFIX=/usr
+
+define EARLYOOM_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) $(EARLYOOM_MAKE_OPTS) -C $(@D) \
+		$(EARLYOOM_BUILD_TARGETS) CFLAGS=$(EARLYOOM_CFLAGS)
+endef
+
+define EARLYOOM_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) $(EARLYOOM_MAKE_OPTS) -C $(@D) \
+		$(EARLYOOM_INSTALL_TARGETS) DESTDIR=$(TARGET_DIR)
+endef
+
+define EARLYOOM_INSTALL_INIT_SYSV
+	$(INSTALL) -D -m 755 $(EARLYOOM_PKGDIR)/S02earlyoom \
+		$(TARGET_DIR)/etc/init.d/S02earlyoom
+endef
+
+define EARLYOOM_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 644 $(@D)/earlyoom.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/earlyoom.service
+endef
+
+$(eval $(generic-package))