2d1f7f4c916a7808ea039c2b39ba26618e9f7052
1 #
2 # Copyright (C) 2018 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 #
17 ##### Input Variables:
18 # LOCAL_MODULE: required. Module name for the build system.
19 # LOCAL_MODULE_CLASS: optional. Default is ETC.
20 # LOCAL_MODULE_PATH: optional. Path of output file. Default is $(TARGET_OUT)/etc/vintf.
21 # LOCAL_MODULE_STEM: optional. Name of output file. Default is $(LOCAL_MODULE).
22 # LOCAL_SRC_FILES: required. Local source files provided to assemble_vintf
23 # (command line argument -i).
24 # LOCAL_GENERATED_SOURCES: optional. Global source files provided to assemble_vintf
25 # (command line argument -i).
26 #
27 # LOCAL_ADD_VBMETA_VERSION: Use AVBTOOL to add avb version to the output matrix
28 # (corresponds to <avb><vbmeta-version> tag)
29 # LOCAL_ASSEMBLE_VINTF_ENV_VARS: Add a list of environment variable names from global variables in
30 # the build system that is lazily evaluated (e.g. PRODUCT_ENFORCE_VINTF_MANIFEST).
31 # LOCAL_ASSEMBLE_VINTF_ENV_VARS_OVERRIDE: Add a list of environment variables that is local to
32 # assemble_vintf invocation. Format is "VINTF_ENFORCE_NO_UNUSED_HALS=true".
33 # LOCAL_ASSEMBLE_VINTF_FLAGS: Add additional command line arguments to assemble_vintf invocation.
34 # LOCAL_KERNEL_CONFIG_DATA_PATHS: Paths to search for kernel config requirements. Format for each is
35 # <kernel version x.y.z>:<path that contains android-base*.config>.
36 # LOCAL_GEN_FILE_DEPENDENCIES: A list of additional dependencies for the generated file.
38 ifndef LOCAL_MODULE
39 $(error LOCAL_MODULE must be defined.)
40 endif
42 ifndef LOCAL_MODULE_STEM
43 LOCAL_MODULE_STEM := $(LOCAL_MODULE)
44 endif
46 ifndef LOCAL_MODULE_CLASS
47 LOCAL_MODULE_CLASS := ETC
48 endif
50 ifndef LOCAL_MODULE_PATH
51 LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/vintf
52 endif
54 GEN := $(local-generated-sources-dir)/$(LOCAL_MODULE_STEM)
56 $(GEN): PRIVATE_ENV_VARS := $(LOCAL_ASSEMBLE_VINTF_ENV_VARS)
57 $(GEN): PRIVATE_FLAGS := $(LOCAL_ASSEMBLE_VINTF_FLAGS)
59 $(GEN): $(LOCAL_GEN_FILE_DEPENDENCIES)
61 ifeq (true,$(strip $(LOCAL_ADD_VBMETA_VERSION)))
62 ifeq (true,$(BOARD_AVB_ENABLE))
63 $(GEN): $(AVBTOOL)
64 # INTERNAL_AVB_SYSTEM_SIGNING_ARGS consists of BOARD_AVB_SYSTEM_KEY_PATH and
65 # BOARD_AVB_SYSTEM_ALGORITHM. We should add the dependency of key path, which
66 # is a file, here.
67 $(GEN): $(BOARD_AVB_SYSTEM_KEY_PATH)
68 # Use deferred assignment (=) instead of immediate assignment (:=).
69 # Otherwise, cannot get INTERNAL_AVB_SYSTEM_SIGNING_ARGS.
70 $(GEN): FRAMEWORK_VBMETA_VERSION = $$("$(AVBTOOL)" add_hashtree_footer \
71 --print_required_libavb_version \
72 $(INTERNAL_AVB_SYSTEM_SIGNING_ARGS) \
73 $(BOARD_AVB_SYSTEM_ADD_HASHTREE_FOOTER_ARGS))
74 else
75 $(GEN): FRAMEWORK_VBMETA_VERSION := 0.0
76 endif # BOARD_AVB_ENABLE
77 $(GEN): PRIVATE_ENV_VARS += FRAMEWORK_VBMETA_VERSION
78 endif # LOCAL_ADD_VBMETA_VERSION
80 ifeq (true,$(strip $(LOCAL_ADD_VBMETA_VERSION_OVERRIDE)))
81 ifneq ($(BOARD_OTA_FRAMEWORK_VBMETA_VERSION_OVERRIDE),)
82 $(GEN): FRAMEWORK_VBMETA_VERSION_OVERRIDE := $(BOARD_OTA_FRAMEWORK_VBMETA_VERSION_OVERRIDE)
83 $(GEN): PRIVATE_ENV_VARS += FRAMEWORK_VBMETA_VERSION_OVERRIDE
84 endif
85 endif
87 ifneq (,$(strip $(LOCAL_KERNEL_CONFIG_DATA_PATHS)))
88 $(GEN): PRIVATE_KERNEL_CONFIG_DATA_PATHS := $(LOCAL_KERNEL_CONFIG_DATA_PATHS)
89 $(GEN): $(foreach pair,$(PRIVATE_KERNEL_CONFIG_DATA_PATHS),\
90 $(wildcard $(call word-colon,2,$(pair))/android-base*.config))
91 $(GEN): PRIVATE_FLAGS += $(foreach pair,$(PRIVATE_KERNEL_CONFIG_DATA_PATHS),\
92 --kernel=$(call word-colon,1,$(pair)):$(call normalize-path-list,\
93 $(wildcard $(call word-colon,2,$(pair))/android-base*.config)))
94 endif
96 my_matrix_src_files := \
97 $(addprefix $(LOCAL_PATH)/,$(LOCAL_SRC_FILES)) \
98 $(LOCAL_GENERATED_SOURCES)
100 $(GEN): PRIVATE_ADDITIONAL_ENV_VARS := $(LOCAL_ASSEMBLE_VINTF_ENV_VARS_OVERRIDE)
102 ifneq (,$(strip $(LOCAL_ASSEMBLE_VINTF_ERROR_MESSAGE)))
103 $(GEN): PRIVATE_COMMAND_TAIL := || (echo $(strip $(LOCAL_ASSEMBLE_VINTF_ERROR_MESSAGE)) && false)
104 endif
106 $(GEN): PRIVATE_SRC_FILES := $(my_matrix_src_files)
107 $(GEN): $(my_matrix_src_files) $(HOST_OUT_EXECUTABLES)/assemble_vintf
108 $(foreach varname,$(PRIVATE_ENV_VARS),\
109 $(if $(findstring $(varname),$(PRIVATE_ADDITIONAL_ENV_VARS)),\
110 $(error $(varname) should not be overridden by LOCAL_ASSEMBLE_VINTF_ENV_VARS_OVERRIDE.)))
111 $(foreach varname,$(PRIVATE_ENV_VARS),$(varname)="$($(varname))") \
112 $(PRIVATE_ADDITIONAL_ENV_VARS) \
113 $(HOST_OUT_EXECUTABLES)/assemble_vintf \
114 -i $(call normalize-path-list,$(PRIVATE_SRC_FILES)) \
115 -o $@ \
116 $(PRIVATE_FLAGS) $(PRIVATE_COMMAND_TAIL)
118 LOCAL_PREBUILT_MODULE_FILE := $(GEN)
119 LOCAL_SRC_FILES :=
120 LOCAL_GENERATED_SOURCES :=
122 include $(LOCAL_PATH)/clear_vars.mk
123 my_matrix_src_files :=
125 include $(BUILD_PREBUILT)