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Makefile
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## Parameters:
## ----------
SRCDIR:=src
VERBOSE:=## Assign a value to verbose to enable logging.
DISTDIR:=dist## The image's destination directory.
DISTVOL:=lfs-dist## The destination docker-volume.
CACHEVOL:=lfs-cache## The cache docker-volume.
NAME:=lfs.img## The name of the image.
##
VIRTCPU:=8## CPU count to use for virtual machines.
VIRTRAM:=4096## RAM amount to use for virtual machines (in MB).
VIRTVRAM:=128## VRAM amount to use for virtual machines (in MiB).
VIRTNAME:=LFS## Name to use for virtual machines.
##
CAPS:=SYS_ADMIN MKNOD CHOWN SETGID SETUID SYS_CHROOT FOWNER DAC_OVERRIDE## Capabilities to enable for the docker container.
CMD:=./build.sh## Command to run in the docker container.
SHELL=/bin/bash
MAKEFILE:=$(CURDIR)/$(firstword $(MAKEFILE_LIST))
RE_SECTION:=^\s*\#\#
RE_RULE:=^.*:.*\#\#\s+
RE_VARIABLE:=^.*=.*\#\#\s+
SED_SECTION:=s/^\s*\#\#\s*(.*)/\1/
SED_RULE:=s/(.*):.*\#\#\s*(.*)/\1|\2/
SED_VARIABLE:=s/(.*)=(.*)\#\#\s*(.*)/\1|\3 Defaults to "\2"./
SED_MATCH:=$(RE_SECTION)|$(RE_RULE)|$(RE_VARIABLE)
SED_SUBST:={$(SED_SECTION);$(SED_RULE);$(SED_VARIABLE);p}
##
##
## Rules:
## -----
all: $(DISTDIR)/$(NAME) ## Alias for $(DISTDIR)/$(NAME).
##
help: ## Show available parameters and rules.
@sed -n -E \
-e '/$(RE_SECTION)/{$(SED_SECTION); p}' \
-e '/$(RE_RULE)/{$(SED_RULE); p}' \
-e '/$(RE_VARIABLE)/{$(SED_VARIABLE); p}' \
$(MAKEFILE) \
| column -L -t -s'|'
##
ft_linux: $(SRCDIR) ## Build the host docker image.
@echo "BUILD ft_linux"
docker build -t ft_linux .
$(DISTDIR):
@echo "MKDIR $(DISTDIR)"
mkdir -p "$(DISTDIR)"
$(DISTDIR)/$(NAME): ft_linux $(DISTDIR) ## Build the LFS image.
if [ ! -f $(DISTDIR)/$(NAME) ] || [ ! -f "$(DISTDIR)/build-id" ] \
|| [ "$$(cat "$(DISTDIR)/build-id")" != "$$(docker inspect -f '{{.Id}}' ft_linux)" ]; \
then \
set -euo pipefail; \
\
echo "RUN $(CMD)"; \
docker run --rm \
--cap-drop=all $(CAPS:%=--cap-add=%) \
--device-cgroup-rule='b 7:* rmw' \
--device-cgroup-rule='b 259:* rmw' \
-v /dev:/hostdev:ro \
-v "$(DISTVOL):/dist:rw" \
-v "$(CACHEVOL):/cache:rw" \
-v "$(shell readlink -f "$(SRCDIR)/lfs"):/root/chroot" \
--name=ft_linux \
-it ft_linux $(CMD); \
\
if [ "$(CMD)" = "./build.sh" ]; \
then \
echo "CP $(NAME) $(DISTDIR)"; \
docker run --rm -d \
--cap-drop=all \
-v "$(DISTVOL):/dist:rw" \
--name=ft_linux-dist \
ft_linux \
tail -f /dev/null; \
\
docker cp --quiet=false ft_linux-dist:/dist/disk.img \
$(DISTDIR)/$(NAME) 2>&1 \
| awk '{printf "\r%s", $$0; fflush();}'; echo; \
\
echo "$$(docker inspect -f '{{.Id}}' ft_linux)" \
> "$(DISTDIR)/build-id"; \
\
docker stop ft_linux-dist; \
\
printf '\a'; \
fi \
fi
##
edit: $(DISTDIR)/$(NAME) ## Edit or inspect a built image using chroot.
@echo "RUN ./edit.sh"
docker run --rm \
--cap-drop=all $(CAPS:%=--cap-add=%) \
--device-cgroup-rule='b 7:* rmw' \
--device-cgroup-rule='b 259:* rmw' \
-v /dev:/hostdev:ro \
-v "$(DISTVOL):/dist:rw" \
-v "$(CACHEVOL):/cache:rw" \
-v "$(shell readlink -f "$(SRCDIR)/lfs"):/root/chroot" \
--name=ft_linux \
-it ft_linux ./edit.sh
##
kernel-oldconfig: $(DISTDIR)/$(NAME) ## Migrate from an older kernel configuration.
@echo "RUN kernel oldconfig"
docker run --rm \
--cap-drop=all $(CAPS:%=--cap-add=%) \
--device-cgroup-rule='b 7:* rmw' \
--device-cgroup-rule='b 259:* rmw' \
-v /dev:/hostdev:ro \
-v "$(DISTVOL):/dist:rw" \
-v "$(CACHEVOL):/cache:rw" \
-v "$(shell readlink -f "$(SRCDIR)/lfs"):/root/chroot" \
--name=ft_linux \
-it ft_linux ./kernel.sh oldconfig
kernel-menuconfig: $(DISTDIR)/$(NAME) ## Edit the kernel configuration interactively.
@echo "RUN kernel menuconfig"
docker run --rm \
--cap-drop=all $(CAPS:%=--cap-add=%) \
--device-cgroup-rule='b 7:* rmw' \
--device-cgroup-rule='b 259:* rmw' \
-v /dev:/hostdev:ro \
-v "$(DISTVOL):/dist:rw" \
-v "$(CACHEVOL):/cache:rw" \
-v "$(shell readlink -f "$(SRCDIR)/lfs"):/root/chroot" \
--name=ft_linux \
-it ft_linux ./kernel.sh menuconfig
##
virt-install: $(DISTDIR)/$(NAME) ## Install the built image as a virt-manager VM.
@echo "Installing '$(VIRTNAME)' using virt-install..."
@virt-install \
--name=LFS \
--os-variant=linux2022 \
--vcpu="$(VIRTCPU)" \
--ram="$(VIRTRAM)" \
--disk "bus=sata,path=$(shell readlink -f "$(DISTDIR)/$(NAME)")" \
--video=qxl,vgamem="$(shell numfmt --from-unit Mi --to-unit Ki "$(VIRTVRAM)")",vram="$(shell numfmt --from-unit Mi --to-unit Ki "$(VIRTVRAM)")" \
--channel spicevmc \
--network network=default \
--boot uefi \
--import \
--autoconsole none
virt-uninstall: ## Uninstall the virt-manager VM.
@echo "Uninstalling '$(VIRTNAME)' using virsh..."
@virsh undefine "$(VIRTNAME)" --nvram
$(DISTDIR)/$(NAME).vdi: $(DISTDIR)/$(NAME) ## Build a LFS VDI disk image.
@rm -f "$(DISTDIR)/$(NAME).vdi"
@VBoxManage convertfromraw "$(DISTDIR)/$(NAME)" "$(DISTDIR)/$(NAME).vdi"
##
vbox-install: $(DISTDIR)/$(NAME).vdi ## Install the built image as a VirtualBox VM.
@echo "Installing '$(VIRTNAME)' using VBoxManage..."
@VBoxManage createvm \
--name "$(VIRTNAME)" \
--ostype=Linux_64 \
--register
@VBoxManage modifyvm "$(VIRTNAME)" \
--memory "$(VIRTRAM)" \
--vram "$(VIRTVRAM)" \
--graphicscontroller=vmsvga \
--firmware=efi64
@VBoxManage storagectl "$(VIRTNAME)" \
--name "SATA Controller" \
--add sata \
--controller IntelAHCI \
--portcount 1
@VBoxManage storageattach "$(VIRTNAME)" \
--storagectl "SATA Controller" \
--port 0 \
--device 0 \
--type hdd \
--medium "$(shell readlink -f "$(DISTDIR)/$(NAME).vdi")"
vbox-uninstall: ## Uninstall the VirtualBox VM.
@echo "Uninstalling '$(VIRTNAME)' using VBoxManage..."
@! VBoxManage list runningvms | grep "\"$(VIRTNAME)\"" > /dev/null \
|| VBoxManage controlvm "$(VIRTNAME)" poweroff
@VBoxManage unregistervm "$(VIRTNAME)" --delete
check-scripts:
shellcheck $(shell find "$(SRCDIR)" -type f -name '*.sh')
.PHONY: all help ft_linux edit virt-install vbox-install vbox-uninstall \
check-scripts
$(VERBOSE).SILENT: