build: add Mikrotik NOR RouterBOOT v7 image build

Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>

include/image-commands.mk

@@ -530,6 +530,11 @@ define Build/gl-qsdk-factory
 		$(KDIR_TMP)/$(notdir $(BOOT_SCRIPT))
 endef
 
+define Build/kernel-pack-npk
+	sh -c '. $(STAGING_DIR_HOST)/share/npkpy-venv/bin/activate; python $(STAGING_DIR_HOST)/share/npkpy-venv/bin/pack_npk_kernel.py --kernel $@ --output $@.npk'
+	mv $@.npk $@
+endef
+
 define Build/linksys-image
 	let \
 		size="$$(stat -c%s $@)" \

tools/Makefile

@@ -87,6 +87,7 @@ tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USES_MINOR),y) += yafut
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USE_SPARSE),y) += sparse
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USE_LLVM_BUILD),y) += llvm-bpf
 tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USE_MOLD),y) += mold
+tools-$(if $(CONFIG_BUILD_ALL_HOST_TOOLS)$(CONFIG_USES_MINOR),y) += npkpy
 
 # builddir dependencies
 $(curdir)/autoconf/compile := $(curdir)/m4/compile

tools/npkpy/Makefile

@@ -0,0 +1,33 @@
+#
+# Copyright (C) 2023 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=npkpy
+PKG_RELEASE:=1
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/john-tho/npkpy.git
+PKG_SOURCE_DATE:=2023-01-22
+PKG_SOURCE_VERSION:=771dddc5aaaff95a9b4160d6867152cfa1a9255f
+PKG_MIRROR_HASH:=4c0596218e8c1f78b38c0583c18a574da18ff4c000ecdd5fbf50c62a62a1fb03
+
+include $(INCLUDE_DIR)/host-build.mk
+
+define Host/Compile
+	python -m venv $(STAGING_DIR_HOST)/share/npkpy-venv
+	sh -c '. $(STAGING_DIR_HOST)/share/npkpy-venv/bin/activate; pip install --editable $(HOST_BUILD_DIR)'
+endef
+
+define Host/Install
+	$(CP) $(HOST_BUILD_DIR)/tools/demo_pack_kernel/poc_pack_kernel.py $(STAGING_DIR_HOST)/share/npkpy-venv/bin/pack_npk_kernel.py
+endef
+
+define Host/Clean
+	rm -rf $(STAGING_DIR_HOST)/share/npkpy-venv
+endef
+
+$(eval $(call HostBuild))