82 lines
3.8 KiB
Makefile
82 lines
3.8 KiB
Makefile
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.PHONY: all clean pack repack-ramdisk repack-boot create-zip
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WORK_DIR := $(PWD)
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BOOT_IMG := boot.img
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KERNEL_FILE := extracted_boot/kernel
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RAMDISK_DIR := ramdisk
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ROOTFS_DIR := debian_a20e
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OUTPUT_ZIP := debian_a20e.zip
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TEMP_DIR := temp_build
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# Sizes and offsets
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KERNEL_OFFSET := 0xE64800
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RAMDISK_OFFSET := 0x1ED5800
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all: create-zip
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repack-ramdisk:
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@echo "Repacking ramdisk..."
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@mkdir -p $(TEMP_DIR)
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@cd $(RAMDISK_DIR) && find . -print0 | cpio -0 -o -H newc | gzip > ../$(TEMP_DIR)/ramdisk.cpio.gz
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@echo "Ramdisk repacked: $(TEMP_DIR)/ramdisk.cpio.gz"
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repack-boot: repack-ramdisk
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@echo "Repacking boot.img..."
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@mkdir -p $(TEMP_DIR)/boot
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# Extract kernel
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@dd if=$(BOOT_IMG) bs=1 skip=$$(($(KERNEL_OFFSET))) count=$$(stat -f%z "$(KERNEL_FILE)" 2>/dev/null || stat -c%s "$(KERNEL_FILE)") of=$(TEMP_DIR)/boot/kernel 2>/dev/null || true
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# Copy repacked ramdisk
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@cp $(TEMP_DIR)/ramdisk.cpio.gz $(TEMP_DIR)/boot/ramdisk.cpio.gz
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# Repack with mkbootimg (u might need to adjust args based on original)
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@mkbootimg --kernel $(TEMP_DIR)/boot/kernel --ramdisk $(TEMP_DIR)/boot/ramdisk.cpio.gz --output $(TEMP_DIR)/boot.img --pagesize 2048 2>/dev/null || echo "mkbootimg not found, using original boot.img"
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@test -f $(TEMP_DIR)/boot.img || cp $(BOOT_IMG) $(TEMP_DIR)/boot.img
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@echo "Boot.img repacked"
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create-rootfs-tar:
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@echo "Creating rootfs tarball..."
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@mkdir -p $(TEMP_DIR)
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@cd $(ROOTFS_DIR) && tar czf ../$(TEMP_DIR)/system.tar.gz . 2>/dev/null || tar czf ../$(TEMP_DIR)/system.tar.gz --exclude=proc --exclude=sys .
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@echo "Rootfs tarball created"
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create-zip: repack-boot create-rootfs-tar
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@echo "Creating flashable zip..."
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@mkdir -p $(TEMP_DIR)/debian_rom
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# Copy META-INF (TWRP needs this)
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@mkdir -p $(TEMP_DIR)/debian_rom/META-INF/com/google/android
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@echo "ui_print(\"Installing Debian A20e...\");" > $(TEMP_DIR)/debian_rom/META-INF/com/google/android/update-binary
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@chmod +x $(TEMP_DIR)/debian_rom/META-INF/com/google/android/update-binary
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@echo "ui_print(\"Done\");" > $(TEMP_DIR)/debian_rom/META-INF/com/google/android/updater-script
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# Copy boot and rootfs
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@cp $(TEMP_DIR)/boot.img $(TEMP_DIR)/debian_rom/boot.img
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@cp $(TEMP_DIR)/system.tar.gz $(TEMP_DIR)/debian_rom/system.tar.gz
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# Create flash script
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@echo "#!/sbin/sh" > $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "OUTFD=\$$2" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "PARTITION=\$$(getprop ro.boot.bootdevice)" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "ui_print \"Flashing boot.img...\" >&\$$OUTFD" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "dd if=/sdcard/debian_rom/boot.img of=/dev/block/bootdevice/by-name/boot" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "ui_print \"Formatting and extracting rootfs...\" >&\$$OUTFD" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "mkfs.ext4 /dev/block/mmcblk0p32" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "mount /dev/block/mmcblk0p32 /mnt/root" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "cd /mnt/root && tar xzf /sdcard/debian_rom/system.tar.gz" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "umount /mnt/root" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@echo "ui_print \"Installation complete!\" >&\$$OUTFD" >> $(TEMP_DIR)/debian_rom/flash_debian.sh
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@chmod +x $(TEMP_DIR)/debian_rom/flash_debian.sh
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# Zip it up
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@cd $(TEMP_DIR)/debian_rom && zip -r ../../$(OUTPUT_ZIP) . -q
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@echo "Flashable zip created: $(OUTPUT_ZIP)"
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clean:
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@echo "Cleaning up..."
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@rm -rf $(TEMP_DIR) $(OUTPUT_ZIP)
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@echo "Done"
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help:
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@echo "Available targets:"
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@echo " make all - Build everything and create flashable zip"
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@echo " make repack-ramdisk - Repack ramdisk from ramdisk/ directory"
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@echo " make repack-boot - Repack boot.img"
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@echo " make create-zip - Create flashable TWRP zip"
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@echo " make clean - Clean up build artifacts"
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@echo " make help - Show this help message"
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