platform_system_core/fs_mgr/Android.bp

//
// Copyright (C) 2017 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.
//

package {
    default_applicable_licenses: [
        "Android-Apache-2.0",
        "system_core_fs_mgr_license",
    ],
}

// Added automatically by a large-scale-change that took the approach of
// 'apply every license found to every target'. While this makes sure we respect
// every license restriction, it may not be entirely correct.
//
// e.g. GPL in an MIT project might only apply to the contrib/ directory.
//
// Please consider splitting the single license below into multiple licenses,
// taking care not to lose any license_kind information, and overriding the
// default license using the 'licenses: [...]' property on targets as needed.
//
// For unused files, consider creating a 'fileGroup' with "//visibility:private"
// to attach the license to, and including a comment whether the files may be
// used in the current project.
// See: http://go/android-license-faq
license {
    name: "system_core_fs_mgr_license",
    visibility: [":__subpackages__"],
    license_kinds: [
        "SPDX-license-identifier-MIT",
    ],
    license_text: ["NOTICE"],
}

cc_defaults {
    name: "fs_mgr_defaults",
    sanitize: {
        misc_undefined: ["integer"],
    },
    cflags: [
        "-Wall",
        "-Werror",
    ],
}

cc_defaults {
    name: "libfs_mgr_defaults",
    defaults: ["fs_mgr_defaults"],
    export_include_dirs: ["include"],
    local_include_dirs: ["include/"],
    include_dirs: ["system/vold"],
    cflags: [
        "-D_FILE_OFFSET_BITS=64",
    ],
    srcs: [
        "blockdev.cpp",
        "file_wait.cpp",
        "fs_mgr.cpp",
        "fs_mgr_format.cpp",
        "fs_mgr_dm_linear.cpp",
        "fs_mgr_roots.cpp",
        "fs_mgr_overlayfs_control.cpp",
        "fs_mgr_overlayfs_mount.cpp",
        "fs_mgr_vendor_overlay.cpp",
        ":libfiemap_srcs",
    ],
    shared_libs: [
        "libbase",
        "libcrypto",
        "libcrypto_utils",
        "libcutils",
        "libext4_utils",
        "libfec",
        "liblog",
        "liblp",
        "libselinux",
    ],
    static_libs: [
        "libavb",
        "libfs_avb",
        "libfstab",
        "libdm",
        "libgsi",
    ],
    export_static_lib_headers: [
        "libfs_avb",
        "libfstab",
        "libdm",
    ],
    export_shared_lib_headers: [
        "liblp",
    ],
    whole_static_libs: [
        "liblogwrap",
        "libdm",
        "libext2_uuid",
        "libfscrypt",
        "libfstab",
    ],
    cppflags: [
        "-DALLOW_ADBD_DISABLE_VERITY=0",
    ],
    product_variables: {
        debuggable: {
            cppflags: [
                "-UALLOW_ADBD_DISABLE_VERITY",
                "-DALLOW_ADBD_DISABLE_VERITY=1",
            ],
        },
    },
    header_libs: [
        "libfiemap_headers",
        "libstorage_literals_headers",
    ],
    export_header_lib_headers: [
        "libfiemap_headers",
    ],
    target: {
        platform: {
            required: [
                "e2freefrag",
                "e2fsdroid",
            ],
        },
        recovery: {
            required: [
                "e2fsdroid.recovery",
            ],
        },
    },
}

// Two variants of libfs_mgr are provided: libfs_mgr and libfs_mgr_binder.
// Use libfs_mgr in recovery, first-stage-init, or when libfiemap or overlayfs
// is not used.
//
// Use libfs_mgr_binder when not in recovery/first-stage init, or when overlayfs
// or libfiemap is needed. In this case, libfiemap will proxy over binder to
// gsid.
cc_library {
    // Do not ever allow this library to be vendor_available as a shared library.
    // It does not have a stable interface.
    name: "libfs_mgr",
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    defaults: [
        "libfs_mgr_defaults",
    ],
    srcs: [
        ":libfiemap_passthrough_srcs",
    ],
}

cc_library {
    // Do not ever allow this library to be vendor_available as a shared library.
    // It does not have a stable interface.
    name: "libfs_mgr_binder",
    defaults: [
        "libfs_mgr_defaults",
        "libfiemap_binder_defaults",
    ],
}

cc_library_static {
    // Do not ever make this a shared library as long as it is vendor_available.
    // It does not have a stable interface.
    name: "libfstab",
    vendor_available: true,
    ramdisk_available: true,
    vendor_ramdisk_available: true,
    recovery_available: true,
    apex_available: [
        "//apex_available:anyapex",
        "//apex_available:platform",
    ],
    host_supported: true,
    defaults: ["fs_mgr_defaults"],
    local_include_dirs: ["include/"],
    srcs: [
        "fs_mgr_fstab.cpp",
        "fs_mgr_boot_config.cpp",
        "fs_mgr_slotselect.cpp",
    ],
    target: {
        darwin: {
            enabled: false,
        },
        vendor: {
            cflags: [
                // Skipping entries in fstab should only be done in a system
                // process as the config file is in /system_ext.
                // Remove the op from the vendor variant.
                "-DNO_SKIP_MOUNT",
            ],
        },
    },
    export_include_dirs: ["include_fstab"],
    header_libs: [
        "libbase_headers",
        "libgsi_headers",
    ],
    min_sdk_version: "31",
}

cc_binary {
    name: "remount",
    defaults: ["fs_mgr_defaults"],
    static_libs: [
        "libavb_user",
        "libgsid",
        "libvold_binder",
    ],
    shared_libs: [
        "libbootloader_message",
        "libbase",
        "libbinder",
        "libcutils",
        "libcrypto",
        "libext4_utils",
        "libfs_mgr_binder",
        "liblog",
        "liblp",
        "libselinux",
        "libutils",
    ],
    header_libs: [
        "libcutils_headers",
    ],
    srcs: [
        "fs_mgr_remount.cpp",
    ],
    cppflags: [
        "-DALLOW_ADBD_DISABLE_VERITY=0",
    ],
    product_variables: {
        debuggable: {
            cppflags: [
                "-UALLOW_ADBD_DISABLE_VERITY",
                "-DALLOW_ADBD_DISABLE_VERITY=1",
            ],
            init_rc: [
                "clean_scratch_files.rc",
            ],
        },
    },
    symlinks: [
        "clean_scratch_files",
        "disable-verity",
        "enable-verity",
        "set-verity-state",
    ],
}