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#!/usr/bin/make -f
-include alpine.conf.mk
BUILD_DATE := $(shell date +%y%m%d)
ALPINE_RELEASE ?= $(BUILD_DATE)
ALPINE_NAME ?= alpine-test
DESTDIR ?= $(shell pwd)/isotmp
APORTS_DIR ?= $(HOME)/aports
APKDIRS ?= ../aports/core/*/
ISO ?= $(ALPINE_NAME)-$(ALPINE_RELEASE).iso
ISO_LINK ?= $(ALPINE_NAME).iso
ISO_DIR := $(DESTDIR)/isofs
find_apk = $(firstword $(wildcard $(addprefix $(APKDIRS),$(1)-[0-9]*.apk)))
KERNEL_FLAVOR ?= grsec
KERNEL_PKGNAME ?= linux-$(KERNEL_FLAVOR)
KERNEL_NAME := $(subst linux-,,$(KERNEL_PKGNAME))
KERNEL_APK := $(call find_apk,$(KERNEL_PKGNAME))
MODULE_APK := $(wildcard $(subst /$(KERNEL_PKGNAME)-,/$(KERNEL_PKGNAME)-mod-,$(KERNEL_APK)))
KERNEL := $(word 3,$(subst -, ,$(notdir $(KERNEL_APK))))-$(word 2,$(subst -, ,$(notdir $(KERNEL_APK))))
ALPINEBASELAYOUT_APK := $(call find_apk,alpine-baselayout)
UCLIBC_APK := $(call find_apk,uclibc)
BUSYBOX_APK := $(call find_apk,busybox)
APK_TOOLS_APK := $(call find_apk,apk-tools)
SOURCE_APKS := $(wildcard $(APKDIRS)/*apk)
APK_BIN := $(shell which apk)
ifneq ($(words $(KERNEL_APK) $(MODULE_APK) $(ALPINEBASELAYOUT_APK) $(UCLIBC_APK) $(BUSYBOX_APK) $(APK_TOOLS_APK)),6)
$(error I did not find all APKs which I need.)
endif
all: $(ISO)
help:
@echo "Alpine ISO builder"
@echo
@echo "Type 'make' to build $(ISO)"
@echo
@echo "I will use the following sources files:"
@echo " 1. $(notdir $(KERNEL_APK)) (looks like $(KERNEL))"
@echo " 2. $(notdir $(MODULE_APK))"
@echo " 3. $(notdir $(ALPINEBASELAYOUT_APK))"
@echo " 4. $(notdir $(UCLIBC_APK))"
@echo " 5. $(notdir $(BUSYBOX_APK))"
ifeq ($(APK_BIN),)
@echo " 6. $(notdir $(APK_TOOLS_APK))"
else
@echo " 6. $(APK_BIN)"
endif
@echo
@echo "ALPINE_NAME: $(ALPINE_NAME)"
@echo "ALPINE_RELEASE: $(ALPINE_RELEASE)"
@echo "KERNEL_FLAVOR: $(KERNEL_FLAVOR)"
@echo "APORTS_DIR: $(APORTS_DIR)"
@echo
clean:
rm -rf $(MODLOOP) $(MODLOOP_DIR) $(MODLOOP_DIRSTAMP) \
$(INITFS) $(INITFS_DIRSTAMP) $(INITFS_DIR) \
$(ISO_DIR)
#
# Repos
#
REPOS_DIR := $(ISO_DIR)/packages
REPOS_DIRSTAMP := $(DESTDIR)/stamp.repos
#
# Modloop
#
MODLOOP := $(ISO_DIR)/boot/modloop.cmg
MODLOOP_DIR := $(DESTDIR)/modloop
MODLOOP_DIRSTAMP := $(DESTDIR)/stamp.modloop
$(MODLOOP_DIRSTAMP): $(MODULE_APK)
@echo "==> modloop: prepare modules $(notdir $(MODULE_APK))"
@rm -rf $(MODLOOP_DIR)
@mkdir -p $(MODLOOP_DIR)/lib/modules/
@tar -C $(MODLOOP_DIR) -xzf $(MODULE_APK)
@rm -rf $(addprefix $(MODLOOP_DIR)/lib/modules/*/, source build)
@depmod $(KERNEL) -b $(MODLOOP_DIR)
@touch $(MODLOOP_DIRSTAMP)
$(MODLOOP): $(MODLOOP_DIRSTAMP)
@echo "==> modloop: building image $(notdir $(MODLOOP))"
@mkdir -p $(dir $(MODLOOP))
@mkcramfs $(MODLOOP_DIR)/lib $(MODLOOP)
modloop: $(MODLOOP)
#
# Initramfs rules
#
INITFS := $(ISO_DIR)/boot/initramfs.gz
INITFS_DIRSTAMP := $(DESTDIR)/stamp.initfs
INITFS_DIR := $(DESTDIR)/initfs
INITFS_MODDIR := $(INITFS_DIR)/lib/modules/$(KERNEL)
INITFS_MODDIRSTAMP := $(DESTDIR)/stamp.initfs.modules
INITFS_APKS := $(UCLIBC_APK) $(BUSYBOX_APK)
INITFS_RAWBASEFILES := etc/mdev.conf etc/passwd etc/group etc/fstab etc/modules
INITFS_BASEFILES := $(addprefix $(INITFS_DIR)/, $(INITFS_RAWBASEFILES))
$(INITFS_DIRSTAMP): $(INITFS_APKS)
@echo "==> initramfs: prepare baselayout"
@rm -rf $(INITFS_DIR)
@mkdir -p $(addprefix $(INITFS_DIR)/, \
dev proc sys sbin bin .modloop lib/modules \
media/cdrom media/floppy media/usb newroot)
@for apk in $(INITFS_APKS) ; do \
tar -C $(INITFS_DIR) -xzf $$apk ; \
done
@rm -f "$(INITFS_DIR)/.PKGINFO"
@mknod $(INITFS_DIR)/dev/null c 1 3
@mkdir -p "$(INITFS_DIR)/etc"
@echo floppy >> "$(INITFS_DIR)/etc/modules"
@touch $(INITFS_DIRSTAMP)
$(INITFS_BASEFILES): $(INITFS_DIRSTAMP) $(ALPINEBASELAYOUT_APK)
@echo "==> initramfs: $(notdir $(ALPINEBASELAYOUT_APK))"
@tar -C $(INITFS_DIR) -xzf $(ALPINEBASELAYOUT_APK) $(INITFS_RAWBASEFILES)
@touch $(INITFS_BASEFILES)
$(INITFS_DIR)/init: initramfs-init $(INITFS_DIRSTAMP)
@echo "==> initramfs: init script"
@cp initramfs-init "$(INITFS_DIR)/init"
ifeq ($(APK_BIN),)
$(INITFS_DIR)/sbin/apk: $(APK_TOOLS_APK) $(INITFS_DIRSTAMP)
@echo "==> initramfs: $(notdir $(APK_TOOLS_APK))"
@tar -C $(INITFS_DIR) -xzf $(APK_TOOLS_APK) sbin/apk
else
$(INITFS_DIR)/sbin/apk: $(APK_BIN) $(INITFS_DIRSTAMP)
@echo "==> initramfs: copy $(APK_BIN) from buildroot"
@cp $(APK_BIN) "$(INITFS_DIR)/sbin"
endif
$(INITFS_MODDIRSTAMP): $(INITFS_DIRSTAMP) $(INITFS_MODFILES) $(MODLOOP_DIRSTAMP)
@echo "==> initramfs: $(notdir $(MODULE_APK))"
@rm -rf $(INITFS_DIR)/lib/modules
@mkdir -p $(addprefix $(INITFS_MODDIR)/kernel/,drivers fs)
@for i in acpi ata block ide scsi cdrom usb message hid; do \
cp -flLpR $(MODLOOP_DIR)/lib/modules/*/kernel/drivers/$$i \
$(INITFS_MODDIR)/kernel/drivers/ ; \
done
@for i in isofs vfat nls ext2 cramfs '*.ko'; do \
cp -flLpR $(MODLOOP_DIR)/lib/modules/*/kernel/fs/$$i \
$(INITFS_MODDIR)/kernel/fs/ ; \
done
@cp -flLpR $(MODLOOP_DIR)/lib/modules/*/kernel/lib \
$(INITFS_MODDIR)/kernel/
@depmod $(KERNEL) -b $(INITFS_DIR)
@touch $(INITFS_MODDIRSTAMP)
$(INITFS): $(INITFS_DIRSTAMP) $(INITFS_DIR)/init $(INITFS_DIR)/sbin/apk $(INITFS_MODDIRSTAMP) $(INITFS_BASEFILES)
@echo "==> initramfs: creating $(notdir $(INITFS))"
@(cd $(INITFS_DIR) && find . | cpio -o -H newc | gzip -9) > $(INITFS)
initfs: $(INITFS)
#
# ISO rules
#
ISOLINUX := $(ISO_DIR)/isolinux
ISOLINUX_BIN := $(ISOLINUX)/isolinux.bin
ISOLINUX_CFG := $(ISOLINUX)/isolinux.cfg
$(ISOLINUX_BIN): /usr/share/syslinux/isolinux.bin
@echo "==> iso: install isolinux"
@mkdir -p $(dir $(ISOLINUX_BIN))
@cp /usr/share/syslinux/isolinux.bin $(ISOLINUX_BIN)
$(ISOLINUX_CFG):
@echo "==> iso: configure isolinux"
@mkdir -p $(dir $(ISOLINUX_BIN))
@echo "timeout 20" >$(ISOLINUX_CFG)
@echo "prompt 1" >>$(ISOLINUX_CFG)
@echo "default $(KERNEL_NAME)" >>$(ISOLINUX_CFG)
@echo "label $(KERNEL_NAME)" >>$(ISOLINUX_CFG)
@echo " kernel /boot/$(KERNAL_NAME)" >>$(ISOLINUX_CFG)
@echo " append initrd=/boot/initramfs.gz alpine_dev=cdrom modules=floppy quiet" >>$(ISOLINUX_CFG)
ISO_KERNEL := $(ISO_DIR)/boot/$(KERNEL_NAME)
ISO_APKS := $(ISO_DIR)/apks
ISO_APKINDEX := $(ISO_APKS)/APK_INDEX.gz
$(ISO_APKS): $(SOURCE_APKS)
@echo "==> iso: prepare APK repository"
@rm -rf $(ISO_APKS)
@mkdir -p $(ISO_APKS)
@for a in $(SOURCE_APKS) ; do \
ln -f $$a $(ISO_APKS) 2>/dev/null || cp $$a $(ISO_APKS) ; \
done
@apk index $(SOURCE_APKS) | gzip -9 > $(ISO_APKINDEX)
$(ISO_KERNEL): $(KERNEL_APK)
@echo "==> iso: install kernel $(KERNEL)"
@mkdir -p $(dir $(ISO_KERNEL))
@tar -C $(ISO_DIR) -xzf $(KERNEL_APK)
@rm -f $(ISO_DIR)/.[A-Z]*
@touch $(ISO_KERNEL)
$(ISO): $(MODLOOP) $(INITFS) $(ISOLINUX_CFG) $(ISOLINUX_BIN) $(ISO_KERNEL) $(ISO_APKS)
@echo "==> iso: building $(notdir $(ISO))"
@echo "$(ALPINE_NAME)-$(ALPINE_RELEASE) $(BUILD_DATE)" \
> $(ISO_DIR)/.alpine-release
@genisoimage -o $(ISO) -l -J -R \
-b isolinux/isolinux.bin \
-c isolinux/boot.cat \
-no-emul-boot \
-boot-load-size 4 \
-boot-info-table \
-quiet \
$(ISO_DIR)
@ln -fs $@ $(ISO_LINK)
iso: $(ISO)
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