platform_system_core/fastboot/Android.bp
David Anderson aca0beaf77 libsnapshot: Partially implement OpenSnapshotWriter.
This is a re-landing of the original CL, with a few changes:
 - The correct device is now returned in MapUpdateSnapshot.
 - The old API is used for tests, and the new API is only tested when
   used on a VABC device.
 - A sync() call has been added to ensure that writes to the base and
   target snapshot devices have been fully flushed. This makes
   IsPartitionUnchanged detect the MapUpdateSnapshot bug.

Implement OpenSnapshotWriter for non-compressed Virtual A/B. This is
done by adding an OnlineKernelSnapshotWriter class, which forwards all
writes to a dm-snapshot block device.

This also introduces a new ISnapshotWriter class which extends
ICowWriter, and adds features specific to libsnapshot (versus ICowWriter
which is intended only for the new COW format). The OpenSnapshotReader
call has been moved here since the writer retains all the information
needed to create the reader.

To test the new call, vts_libsnapshot_test has been modified to use
OpenSnapshotWriter.

As part of this change, all consumers of libsnapshot must now link to
libsnapshot_cow.

Bug: 168554689
Test: vts_libsnapshot_test
Test: full OTA with update_device.py
Test: incremental OTA with update_device.py
Change-Id: I90364a58902a4406a37cb14a816642c57a72bec2
2020-10-14 21:41:36 -07:00

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// Copyright (C) 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This is required because no Android.bp can include a library defined in an
// Android.mk. Eventually should kill libfastboot (defined in Android.mk)
cc_library_host_static {
name: "libfastboot2",
//host_supported: true,
compile_multilib: "first",
srcs: [
"bootimg_utils.cpp",
"fs.cpp",
"socket.cpp",
"tcp.cpp",
"udp.cpp",
"util.cpp",
"fastboot_driver.cpp",
],
static_libs: [
"libziparchive",
"libsparse",
"libutils",
"liblog",
"libz",
"libdiagnose_usb",
"libbase",
"libcutils",
"libgtest",
"libgtest_main",
"libbase",
"libadb_host",
"liblp",
],
header_libs: [
"bootimg_headers",
],
export_header_lib_headers: [
"bootimg_headers",
],
target: {
linux: {
srcs: ["usb_linux.cpp"],
},
darwin: {
srcs: ["usb_osx.cpp"],
host_ldlibs: [
"-framework CoreFoundation",
"-framework IOKit",
],
},
windows: {
srcs: ["usb_windows.cpp"],
host_ldlibs: [
"-lws2_32",
],
},
},
cflags: [
"-Wall",
"-Wextra",
"-Werror",
"-Wunreachable-code",
],
export_include_dirs: ["."],
}
cc_defaults {
name: "fastboot_defaults",
cflags: [
"-Wall",
"-Wextra",
"-Werror",
"-Wvla",
],
rtti: true,
clang_cflags: [
"-Wthread-safety",
],
}
cc_binary {
name: "fastbootd",
defaults: ["fastboot_defaults"],
recovery: true,
srcs: [
"device/commands.cpp",
"device/fastboot_device.cpp",
"device/flashing.cpp",
"device/main.cpp",
"device/usb.cpp",
"device/usb_client.cpp",
"device/tcp_client.cpp",
"device/utility.cpp",
"device/variables.cpp",
"socket.cpp",
],
shared_libs: [
"android.hardware.boot@1.0",
"android.hardware.boot@1.1",
"android.hardware.fastboot@1.1",
"android.hardware.health@2.0",
"libasyncio",
"libbase",
"libbootloader_message",
"libcutils",
"libext2_uuid",
"libext4_utils",
"libfs_mgr",
"libgsi",
"libhidlbase",
"liblog",
"liblp",
"libprotobuf-cpp-lite",
"libsparse",
"libutils",
],
static_libs: [
"libgtest_prod",
"libhealthhalutils",
"libsnapshot_cow",
"libsnapshot_nobinder",
"update_metadata-protos",
],
header_libs: [
"avb_headers",
"libsnapshot_headers",
]
}
cc_defaults {
name: "fastboot_host_defaults",
use_version_lib: true,
cflags: [
"-Wall",
"-Wextra",
"-Werror",
"-Wunreachable-code",
],
target: {
darwin: {
cflags: ["-Wno-unused-parameter"],
host_ldlibs: [
"-lpthread",
"-framework CoreFoundation",
"-framework IOKit",
],
},
windows: {
enabled: true,
host_ldlibs: ["-lws2_32"],
},
not_windows: {
static_libs: [
"libext4_utils",
],
},
},
stl: "libc++_static",
// Don't add anything here, we don't want additional shared dependencies
// on the host fastboot tool, and shared libraries that link against libc++
// will violate ODR.
shared_libs: [],
header_libs: [
"avb_headers",
"bootimg_headers",
],
static_libs: [
"libziparchive",
"libsparse",
"libutils",
"liblog",
"libz",
"libdiagnose_usb",
"libbase",
"libcutils",
"libgtest_host",
"liblp",
"libcrypto",
],
}
//
// Build host libfastboot.
//
cc_library_host_static {
name: "libfastboot",
defaults: ["fastboot_host_defaults"],
srcs: [
"bootimg_utils.cpp",
"fastboot.cpp",
"fs.cpp",
"socket.cpp",
"tcp.cpp",
"udp.cpp",
"util.cpp",
"fastboot_driver.cpp",
],
// Only version the final binaries
use_version_lib: false,
static_libs: ["libbuildversion"],
generated_headers: ["platform_tools_version"],
target: {
windows: {
srcs: ["usb_windows.cpp"],
include_dirs: ["development/host/windows/usb/api"],
},
darwin: {
srcs: ["usb_osx.cpp"],
},
linux: {
srcs: ["usb_linux.cpp"],
},
},
}
//
// Build host fastboot / fastboot.exe
//
cc_binary_host {
name: "fastboot",
defaults: ["fastboot_host_defaults"],
srcs: ["main.cpp"],
static_libs: ["libfastboot"],
required: [
"mke2fs",
"make_f2fs",
"make_f2fs_casefold",
],
dist: {
targets: [
"dist_files",
"sdk",
"win_sdk",
],
},
target: {
not_windows: {
required: [
"e2fsdroid",
"mke2fs.conf",
"sload_f2fs",
],
},
windows: {
required: ["AdbWinUsbApi"],
shared_libs: ["AdbWinApi"],
},
},
}
//
// Build host fastboot_test.
//
cc_test_host {
name: "fastboot_test",
defaults: ["fastboot_host_defaults"],
srcs: [
"fastboot_test.cpp",
"socket_mock.cpp",
"socket_test.cpp",
"tcp_test.cpp",
"udp_test.cpp",
],
static_libs: ["libfastboot"],
target: {
windows: {
shared_libs: ["AdbWinApi"],
},
windows_x86_64: {
// Avoid trying to build for win64
enabled: false,
},
},
}