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MAKEFLAGS += -r
CFLAGS += -Wall -Wextra
KERNVER ?= $(shell uname -r)
all: initramfs.img
initramfs.img: gen_init_cpio load-random-seed dropbear_ed25519_host_key modules.dep
KERNVER=$(KERNVER) COMPRESSOR="zstd -19 -c -T0" ./make
%: %.c
$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $< -o $@
dropbear_ed25519_host_key:
dropbearkey -t ed25519 -f $@
modules.dep.ver: FORCE
if ! [ -f $@ ] || [ "$$(cat $@)" != "$(KERNVER)" ]; then echo $(KERNVER) > $@; fi
modules.dep: modules /lib/modules/$(KERNVER)/modules.dep modules.dep.ver
awk '!/^#/ { print $1 }' modules | xargs modinfo -F filename -k $(KERNVER) | sed -e 's:^/lib/modules/$(KERNVER)/:^:' | grep -f - /lib/modules/$(KERNVER)/modules.dep > $@
install: initramfs.img
rm -f /boot/initramfs.img.old /boot/initramfs.img.new
cp initramfs.img /boot/initramfs.img.new || rm -f /boot/initramfs.img.new
if [ -e /boot/initramfs.img ]; then mv /boot/initramfs.img /boot/initramfs.img.old; fi
mv /boot/initramfs.img.new /boot/initramfs.img
clean:
rm -f initramfs.img initramfs.d gen_init_cpio load-random-seed modules.dep
-include initramfs.d
.PHONY: all install clean
FORCE:
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