host/rootfs: move to monorepo path

1 files changed, 132 insertions, 0 deletions

diff --git a/host/rootfs/Makefile b/host/rootfs/Makefile
new file mode 100644
index 0000000..abbb5ba
--- /dev/null
+++ b/host/rootfs/Makefile
@@ -0,0 +1,132 @@
+# SPDX-License-Identifier: EUPL-1.2
+# SPDX-FileCopyrightText: 2021 Alyssa Ross <hi@alyssa.is>
+
+# qemu-kvm is non-standard, but is present in at least Fedora and
+# Nixpkgs.  If you don't have qemu-kvm, you'll need to set e.g.
+# QEMU_KVM = qemu-system-x86_64 -enable-kvm.
+QEMU_KVM = qemu-kvm
+SCREEN = screen
+
+# tar2ext4 will leave half a filesystem behind if it's interrupted
+# half way through.
+build/rootfs.ext4: build/rootfs.tar
+	tar2ext4 -i build/rootfs.tar -o $@.tmp
+	mv $@.tmp $@
+
+build/test.img: scripts/make-gpt.sh build/rootfs.ext4 $(EXT_FS)
+	scripts/make-gpt.sh $@.tmp \
+		build/rootfs.ext4:4f68bce3-e8cd-4db1-96e7-fbcaf984b709 \
+		$(EXT_FS):9293e1ff-cee4-4658-88be-898ec863944f
+	mv $@.tmp $@
+
+FILES = \
+	etc/fonts/fonts.conf \
+	etc/fstab \
+	etc/group \
+	etc/init \
+	etc/login \
+	etc/mdev.conf \
+	etc/mdev/listen \
+	etc/mdev/net/add \
+	etc/mdev/wait \
+	etc/parse-devname \
+	etc/passwd \
+	etc/service/getty-tty1/run \
+	etc/service/getty-tty2/run \
+	etc/service/getty-tty3/run \
+	etc/service/getty-tty4/run \
+	etc/service/getty-ttyS0/run \
+	etc/xdg/weston/autolaunch \
+	etc/xdg/weston/weston.ini
+
+# These are separate because they need to be included, but putting
+# them as make dependencies would confuse make.
+LINKS = bin sbin
+
+BUILD_FILES = build/etc/mdev/modalias.sh build/etc/s6-rc
+MOUNTPOINTS = dev ext run proc sys
+
+build/rootfs.tar: $(PACKAGES_TAR) $(FILES) $(BUILD_FILES)
+	cp --no-preserve=mode -f $(PACKAGES_TAR) $@
+	tar $(TARFLAGS) --append -f $@ $(FILES) $(LINKS)
+	echo $(BUILD_FILES) | cut -d/ -f2 | \
+	    tar $(TARFLAGS) --append -f $@ -C build -T -
+	for m in $(MOUNTPOINTS); do \
+	    tar $(TARFLAGS) --append -hf $@ --xform="s,.*,$$m," /var/empty ; \
+	done
+	tar $(TARFLAGS) --append -hf $@ --xform='s,.*,etc/service,' /var/empty
+
+build/etc/mdev/modules.map: scripts/modprobe/gen_modules.map.awk
+	mkdir -p $$(dirname $@)
+	awk -f scripts/modprobe/gen_modules.map.awk \
+		$(MODULES_ORDER) > $@ || rm -f $@
+
+build/etc/mdev/modalias.sh: scripts/modprobe/gen_modalias.sh.awk build/etc/mdev/modules.map
+	mkdir -p $$(dirname $@)
+	awk -v modmap=build/etc/mdev/modules.map \
+		-f scripts/modprobe/gen_modalias.sh.awk \
+		$(MODULES_ALIAS) > $@ || rm -f $@
+	chmod +x $@
+
+S6_RC_FILES = \
+	etc/s6-rc/card0/up \
+	etc/s6-rc/card0/type \
+	etc/s6-rc/ext-rc-init/dependencies \
+	etc/s6-rc/ext-rc-init/type \
+	etc/s6-rc/ext-rc-init/up \
+	etc/s6-rc/ext-rc/dependencies \
+	etc/s6-rc/ext-rc/type \
+	etc/s6-rc/ext-rc/up \
+	etc/s6-rc/ext/type \
+	etc/s6-rc/ext/up \
+	etc/s6-rc/mdevd-coldplug/dependencies \
+	etc/s6-rc/mdevd-coldplug/type \
+	etc/s6-rc/mdevd-coldplug/up \
+	etc/s6-rc/mdevd/notification-fd \
+	etc/s6-rc/mdevd/run \
+	etc/s6-rc/mdevd/type \
+	etc/s6-rc/ok-all/contents \
+	etc/s6-rc/ok-all/type \
+	etc/s6-rc/static-nodes/type \
+	etc/s6-rc/static-nodes/up \
+	etc/s6-rc/weston/dependencies \
+	etc/s6-rc/weston/notification-fd \
+	etc/s6-rc/weston/type \
+	etc/s6-rc/weston/run
+
+# s6-rc-compile's input is a directory, but that doesn't play nice
+# with Make, because it won't know to update if some file in the
+# directory is changed, or a file is created or removed in a
+# subdirectory.  Using the whole source directory could also end up
+# including files that aren't intended to be part of the input, like
+# temporary editor files or .license files.  So for all these reasons,
+# only explicitly listed files are made available to s6-rc-compile.
+build/etc/s6-rc: $(S6_RC_FILES)
+	mkdir -p $$(dirname $@)
+	rm -rf $@
+
+	dir=$$(mktemp -d) && \
+	    tar -c $(S6_RC_FILES) | tar -C $$dir -x --strip-components 2 && \
+	    s6-rc-compile $@ $$dir; \
+	    exit=$$?; rm -r $$dir; exit $$exit
+
+clean:
+	rm -rf build
+.PHONY: clean
+
+run: build/test.img
+	$(QEMU_KVM) -cpu host -m 2G \
+	    -machine q35,kernel=$(KERNEL),kernel-irqchip=split \
+	    -display gtk,gl=on \
+	    -qmp unix:vmm.sock,server,nowait \
+	    -monitor vc \
+	    -parallel none \
+	    -drive file=build/test.img,if=virtio,format=raw,readonly=on \
+	    -append "console=ttyS0 root=/dev/vda1 intel_iommu=on" \
+	    -device intel-iommu,intremap=on \
+	    -device virtio-vga-gl
+.PHONY: run
+
+console:
+	@$(SCREEN) "$$(scripts/qemu-pty.sh vmm.sock virtiocon0)"
+.PHONY: console