1 # 2 # Copyright (C) 2015 The Android Open Source Project 3 # 4 # Licensed under the Apache License, Version 2.0 (the "License"); 5 # you may not use this file except in compliance with the License. 6 # You may obtain a copy of the License at 7 # 8 # http://www.apache.org/licenses/LICENSE-2.0 9 # 10 # Unless required by applicable law or agreed to in writing, software 11 # distributed under the License is distributed on an "AS IS" BASIS, 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 # See the License for the specific language governing permissions and 14 # limitations under the License. 15 # 16 17 # Build additional images requested by the product makefile. 18 # This script gives the ability to build multiple additional images and you can 19 # configure what modules/files to include in each image. 20 # 1. Define PRODUCT_CUSTOM_IMAGE_MAKEFILES in your product makefile. 21 # PRODUCT_CUSTOM_IMAGE_MAKEFILES is a list of makefiles. 22 # Each makefile configures an image. 23 # For image configuration makefile foo/bar/xyz.mk, the built image file name 24 # will be xyz.img. So make sure they won't conflict. 25 # 2. In each image's configuration makefile, you can define variables: 26 # - CUSTOM_IMAGE_MOUNT_POINT, the mount point, such as "oem", "odm" etc. 27 # - CUSTOM_IMAGE_PARTITION_SIZE 28 # - CUSTOM_IMAGE_FILE_SYSTEM_TYPE 29 # - CUSTOM_IMAGE_DICT_FILE, a text file defines a dictionary accepted by 30 # BuildImage() in tools/releasetools/build_image.py. 31 # - CUSTOM_IMAGE_MODULES, a list of module names you want to include in 32 # the image; Not only the module itself will be installed to proper path in 33 # the image, you can also piggyback additional files/directories with the 34 # module's LOCAL_PICKUP_FILES. 35 # - CUSTOM_IMAGE_COPY_FILES, a list of "<src>:<dest>" to be copied to the 36 # image. <dest> is relativ to the root of the image. 37 # - CUSTOM_IMAGE_SELINUX, set to "true" if the image supports selinux. 38 # - CUSTOM_IMAGE_SUPPORT_VERITY, set to "true" if the product supports verity. 39 # - CUSTOM_IMAGE_SUPPORT_VERITY_FEC, set to "true" if the product supports 40 # verity FEC (forward error correction). 41 # - CUSTOM_IMAGE_VERITY_BLOCK_DEVICE 42 # - CUSTOM_IMAGE_AVB_HASH_ENABLE, set to "true" to add AVB HASH footer. 43 # - CUSTOM_IMAGE_AVB_ADD_HASH_FOOTER_ARGS, additional args of AVB HASH footer. 44 # - CUSTOM_IMAGE_AVB_HASHTREE_ENABLE, set to "true" to add AVB HASHTREE 45 # footer. 46 # - CUSTOM_IMAGE_AVB_ADD_HASHTREE_FOOTER_ARGS, additional args of AVB 47 # HASHTREE footer. 48 # - CUSTOM_IMAGE_AVB_KEY_PATH, custom AVB signing key. 49 # - CUSTOM_IMAGE_AVB_ALGORITHM, custom AVB signing algorithm. 50 # 51 # To build all those images, run "make custom_images". 52 53 ifneq ($(filter $(MAKECMDGOALS),custom_images),) 54 55 .PHONY: custom_images 56 57 custom_image_parameter_variables := \ 58 CUSTOM_IMAGE_MOUNT_POINT \ 59 CUSTOM_IMAGE_PARTITION_SIZE \ 60 CUSTOM_IMAGE_FILE_SYSTEM_TYPE \ 61 CUSTOM_IMAGE_DICT_FILE \ 62 CUSTOM_IMAGE_MODULES \ 63 CUSTOM_IMAGE_COPY_FILES \ 64 CUSTOM_IMAGE_SELINUX \ 65 CUSTOM_IMAGE_SUPPORT_VERITY \ 66 CUSTOM_IMAGE_SUPPORT_VERITY_FEC \ 67 CUSTOM_IMAGE_VERITY_BLOCK_DEVICE \ 68 CUSTOM_IMAGE_AVB_HASH_ENABLE \ 69 CUSTOM_IMAGE_AVB_ADD_HASH_FOOTER_ARGS \ 70 CUSTOM_IMAGE_AVB_HASHTREE_ENABLE \ 71 CUSTOM_IMAGE_AVB_ADD_HASHTREE_FOOTER_ARGS \ 72 CUSTOM_IMAGE_AVB_KEY_PATH \ 73 CUSTOM_IMAGE_AVB_ALGORITHM \ 74 75 # We don't expect product makefile to inherit/override PRODUCT_CUSTOM_IMAGE_MAKEFILES, 76 # so we don't put it in the _product_var_list. 77 $(foreach mk, $(PRODUCT_CUSTOM_IMAGE_MAKEFILES),\ 78 $(eval my_custom_imag_makefile := $(mk))\ 79 $(eval include $(BUILD_SYSTEM)/tasks/tools/build_custom_image.mk)) 80 81 endif 82
