6dd098cb1e
This commit constructs the super_vbmeta image to eliminate the need of adding /vbmeta_system and/or /vbmeta_vendor when AVB chain partition is used with Android Dynamic Partition. See BOARD_AVB_VBMETA_SYSTEM under the link: https://android.googlesource.com/platform/external/avb/#build-system-integration The structure of super_vbmeta : | VBMeta Table | (fixed-length 2KiB) | Backup VBMeta Table | (fixed-length 2KiB) | VBMeta Images | (fixed-length 64KiB each) The structure of VBMeta Table : | Super VBMeta Header | (fixed-length 128B) | VBMeta Descriptors | (variable-length) The VBMeta Table records the slot number of each vbmeta image within the /super_vbmeta partition. Bug: 137054296 Test: m libvbmeta_test Test: ./out/host/linux-x86/nativetest/libvbmeta_test/libvbmeta_test Change-Id: I01aeadd850750ae87d9125484c1b1f570bb84756
52 lines
No EOL
1.2 KiB
Text
52 lines
No EOL
1.2 KiB
Text
//
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// Copyright (C) 2019 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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libvbmeta_lib_deps = [
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"libbase",
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"libcrypto",
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]
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cc_library {
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name: "libvbmeta",
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host_supported: true,
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srcs: [
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"builder.cpp",
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"reader.cpp",
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"utility.cpp",
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"writer.cpp",
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],
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shared_libs: [
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"liblog",
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] + libvbmeta_lib_deps,
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export_include_dirs: ["include"],
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}
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cc_test_host {
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name: "libvbmeta_test",
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static_libs: [
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"libsparse",
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"libvbmeta",
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"libz",
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] + libvbmeta_lib_deps,
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srcs: [
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"builder_test.cpp",
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"super_vbmeta_test.cpp",
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],
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required: [
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"avbtool",
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"vbmake",
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],
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} |