libs/binder/Android.bp

// Copyright (C) 2009 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 {
    // See: http://go/android-license-faq
    // A large-scale-change added 'default_applicable_licenses' to import
    // all of the 'license_kinds' from "frameworks_native_license"
    // to get the below license kinds:
    //   SPDX-license-identifier-Apache-2.0
    default_applicable_licenses: ["frameworks_native_license"],
    default_team: "trendy_team_virtualization",
}

cc_library_headers {
    name: "libbinder_headers_base",
    export_include_dirs: ["include"],
    vendor_available: true,
    recovery_available: true,
    host_supported: true,
    native_bridge_supported: true,
    cmake_snapshot_supported: true,

    header_libs: [
        "libbinder_headers_platform_shared",
    ],
    export_header_lib_headers: [
        "libbinder_headers_platform_shared",
    ],
    apex_available: [
        "//apex_available:platform",
        "com.android.media",
        "com.android.media.swcodec",
    ],
    min_sdk_version: "29",
    target: {
        darwin: {
            enabled: false,
        },
    },
    visibility: [
        ":__subpackages__",
    ],
}

cc_library_headers {
    name: "libbinder_headers",
    vendor_available: true,
    recovery_available: true,
    host_supported: true,
    native_bridge_supported: true,

    header_libs: [
        "libbase_headers",
        "libbinder_headers_base",
        "libcutils_headers",
        "libutils_headers",
    ],
    export_header_lib_headers: [
        "libbase_headers",
        "libbinder_headers_base",
        "libcutils_headers",
        "libutils_headers",
    ],
    apex_available: [
        "//apex_available:platform",
        "com.android.media",
        "com.android.media.swcodec",
    ],
    min_sdk_version: "29",
    target: {
        darwin: {
            enabled: false,
        },
    },
}

cc_cmake_snapshot {
    name: "binder_sdk",
    dist: {
        targets: ["binder_sdk"],
        dest: "binder_sdk.zip",
    },

    modules_host: [
        "libbinder_sdk",
        "libbinder_sdk_single_threaded",
        "libbinder_ndk_sdk",
        "googletest_cmake",

        "binderRpcTestNoKernel",
        "binderRpcTestSingleThreadedNoKernel",
        "binderRpcWireProtocolTest",
    ],
    prebuilts: [
        // to enable arm64 host support, build with musl - e.g. on aosp_cf_arm64_phone
        "aidl",
    ],
    include_sources: true,
    cflags: [
        "-DNDEBUG",
        "-DBINDER_ENABLE_LIBLOG_ASSERT",
        "-DBINDER_DISABLE_NATIVE_HANDLE",
        "-DBINDER_DISABLE_BLOB",
        "-DBINDER_NO_LIBBASE",
        "-DBINDER_NO_KERNEL_IPC_TESTING",

        // from Soong's global.go commonGlobalCflags and noOverrideGlobalCflags
        "-Wno-c99-designator",
        "-Wno-missing-field-initializers",

        // warnings that only pop up on gcc
        "-Wno-unknown-pragmas", // "pragma clang"
        "-Wno-attributes", // attributes on compound-statements
        "-Wno-psabi", // reminders about old ABI changes
    ],
    cflags_ignored: [
        // gcc requires all header constexprs to be used in all dependent compilatinon units
        "-Wunused-const-variable",
    ],
    library_mapping: [
        {
            android_name: "libssl",
            mapped_name: "ssl",
            package_pregenerated: "external/boringssl",
        },
        {
            android_name: "libcrypto",
            mapped_name: "crypto",
            package_pregenerated: "external/boringssl",
        },
        {
            android_name: "libgtest",
            mapped_name: "GTest::gtest",
            package_pregenerated: "external/googletest",
        },
        {
            android_name: "libgtest_main",
            mapped_name: "GTest::gtest_main",
            package_pregenerated: "external/googletest",
        },
        {
            android_name: "googletest_cmake",
            package_pregenerated: "external/googletest",
        },

        // use libbinder_sdk and friends instead of full Android's libbinder
        {
            android_name: "libbinder_rpc_no_kernel",
            mapped_name: "android::libbinder_sdk",
        },
        {
            android_name: "libbinder_rpc_single_threaded_no_kernel",
            mapped_name: "android::libbinder_sdk_single_threaded",
        },
        {
            android_name: "libbinder_headers",
            mapped_name: "android::libbinder_headers_base",
        },
        {
            android_name: "libbinder",
            mapped_name: "android::libbinder_sdk",
        },
        {
            android_name: "libbinder_ndk",
            mapped_name: "android::libbinder_ndk_sdk",
        },
        {
            android_name: "liblog",
            mapped_name: "android::liblog_stub",
        },

        // explicitly included by Binder tests, but not needed outside of Android
        {
            android_name: "libbase",
        },
        {
            android_name: "libcutils",
        },
        {
            android_name: "libutils",
        },

        // disable tests that don't work outside of Android yet
        {
            android_name: "binder_rpc_test_service",
        },
        {
            android_name: "binder_rpc_test_service_single_threaded",
        },

        // trusty mocks are artificially triggered and not needed outside of Android build
        {
            android_name: "libbinder_on_trusty_mock",
        },
        {
            android_name: "libbinder_ndk_on_trusty_mock",
        },
        {
            android_name: "binderRpcTestService_on_trusty_mock",
        },
        {
            android_name: "binderRpcTest_on_trusty_mock",
        },
    ],
}

// These interfaces are android-specific implementation unrelated to binder
// transport itself and should be moved to AIDL or in domain-specific libs.
//
// Currently, these are only on system android (not vendor, not host)
// TODO(b/183654927) - move these into separate libraries

filegroup {
    name: "libbinder_device_interface_sources",
    srcs: [
        "IPermissionController.cpp",
        "PermissionCache.cpp",
        "PermissionController.cpp",
    ],
}

cc_defaults {
    name: "libbinder_common_defaults",
    host_supported: true,

    srcs: [
        "Binder.cpp",
        "BpBinder.cpp",
        "Debug.cpp",
        "FdTrigger.cpp",
        "IInterface.cpp",
        "IResultReceiver.cpp",
        "Parcel.cpp",
        "ParcelFileDescriptor.cpp",
        "RecordedTransaction.cpp",
        "RpcSession.cpp",
        "RpcServer.cpp",
        "RpcState.cpp",
        "RpcTransportRaw.cpp",
        "Stability.cpp",
        "Status.cpp",
        "TextOutput.cpp",
        "Utils.cpp",
        "file.cpp",
    ],

    header_libs: [
        "libbinder_headers_base",
    ],
    export_header_lib_headers: [
        "libbinder_headers_base",
    ],

    cflags: [
        "-Wextra",
        "-Wextra-semi",
        "-Werror",
        "-Wzero-as-null-pointer-constant",
        "-Wreorder-init-list",
        "-Wunused-const-variable",
        "-DANDROID_BASE_UNIQUE_FD_DISABLE_IMPLICIT_CONVERSION",
        "-DANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION",
        // Hide symbols by default and set the BUILDING_LIBBINDER macro so that
        // the code knows to export them.
        "-fvisibility=hidden",
        "-DBUILDING_LIBBINDER",
    ],

    target: {
        vendor: {
            // Trimming the exported symbols reveals a bug in vendor code, so
            // disable it for the vendor variant for now. http://b/349657329
            // TODO: Fix the issue and remove this override.
            cflags: ["-fvisibility=default"],
        },
    },
}

cc_defaults {
    name: "libbinder_android_defaults",

    // TODO(b/31559095): get headers from bionic on host
    include_dirs: [
        "bionic/libc/kernel/android/uapi/",
        "bionic/libc/kernel/uapi/",
    ],

    srcs: [
        "OS_android.cpp",
        "OS_unix_base.cpp",
    ],

    target: {
        host: {
            srcs: [
                "UtilsHost.cpp",
            ],
        },
        android: {
            lto: {
                thin: true,
            },
        },
    },

    aidl: {
        export_aidl_headers: true,
    },

    product_variables: {
        debuggable: {
            cflags: [
                "-DBINDER_RPC_DEV_SERVERS",
                "-DBINDER_ENABLE_RECORDING",
            ],
        },
    },

    shared_libs: [
        "libcutils",
        "liblog",
        "libutils",
    ],

    static_libs: [
        "libbase",
    ],

    header_libs: [
        "jni_headers",
        "libbinder_headers",
    ],

    export_header_lib_headers: [
        "libbinder_headers",
    ],

    sanitize: {
        misc_undefined: ["integer"],
    },

    tidy: true,
    tidy_flags: [
        // Only check our headers
        "--header-filter=^.*frameworks/native/libs/binder/.*.h$",
    ],
    tidy_checks: [
        "-performance-no-int-to-ptr",
    ],
    tidy_checks_as_errors: [
        // Explicitly list the checks that should not occur in this module.
        "abseil-*",
        "android-*",
        "bugprone-*",
        "-bugprone-branch-clone", // b/155034972
        "cert-*",
        "clang-analyzer-*",
        "google-*",
        "misc-*",
        "performance*",
        "-performance-move-const-arg", // b/273486801
        "portability*",
    ],
}

cc_library_headers {
    name: "trusty_mock_headers",
    host_supported: true,
    vendor_available: true,

    export_include_dirs: [
        "trusty/include",
        "trusty/include_mock",
    ],

    visibility: [
        ":__subpackages__",
    ],
}

cc_defaults {
    name: "trusty_mock_defaults",
    host_supported: true,
    vendor_available: true,

    header_libs: [
        "libbinder_headers_base",
        "liblog_stub",
        "trusty_mock_headers",
    ],
    export_header_lib_headers: [
        "libbinder_headers_base",
        "liblog_stub",
        "trusty_mock_headers",
    ],

    shared_libs: [
        "libutils_binder_sdk",
    ],

    cflags: [
        "-DBINDER_RPC_SINGLE_THREADED",
        "-DBINDER_ENABLE_LIBLOG_ASSERT",
        "-DBINDER_DISABLE_NATIVE_HANDLE",
        "-DBINDER_DISABLE_BLOB",
        "-DBINDER_NO_LIBBASE",
        // TODO: switch to "vendor: true" rather than copying this
        // Trusty libbinder uses vendor stability for its binders
        "-D__ANDROID_VENDOR__",
        "-D__ANDROID_VNDK__",
        "-U__ANDROID__",
        "-D__TRUSTY__",
        "-DTRUSTY_USERSPACE",
        // Flags from the Trusty build system
        "-Werror",
        "-Wsign-compare",
        "-Wno-unused-function",
        "-Wno-unused-label",
        "-fno-common",
        "-fno-omit-frame-pointer",
        "-fno-threadsafe-statics",
    ],
    rtti: false,

    visibility: [
        ":__subpackages__",
    ],
}

cc_library_shared {
    name: "libbinder_on_trusty_mock",
    defaults: [
        "libbinder_common_defaults",
        "trusty_mock_defaults",
    ],

    srcs: [
        // Trusty-specific files
        "trusty/OS.cpp",
        "trusty/RpcServerTrusty.cpp",
        "trusty/RpcTransportTipcTrusty.cpp",
        "trusty/TrustyStatus.cpp",
        "trusty/socket.cpp",
    ],
}

soong_config_module_type {
    name: "libbinder_client_cache_config",
    module_type: "cc_defaults",
    config_namespace: "libbinder",
    bool_variables: ["release_libbinder_client_cache"],
    properties: [
        "cflags",
    ],
}

libbinder_client_cache_config {
    name: "libbinder_client_cache_flag",
    soong_config_variables: {
        release_libbinder_client_cache: {
            cflags: ["-DLIBBINDER_CLIENT_CACHE"],
            conditions_default: {
                cflags: ["-DNO_LIBBINDER_CLIENT_CACHE"],
            },
        },
    },
}

cc_defaults {
    name: "libbinder_kernel_defaults",
    defaults: ["libbinder_client_cache_flag"],
    srcs: [
        "BufferedTextOutput.cpp",
        "BackendUnifiedServiceManager.cpp",
        "IPCThreadState.cpp",
        "IServiceManager.cpp",
        "IServiceManagerFFI.cpp",
        "ProcessState.cpp",
        "Static.cpp",
        ":libbinder_aidl",
        ":libbinder_device_interface_sources",
    ],
    target: {
        vendor: {
            exclude_srcs: [
                ":libbinder_device_interface_sources",
            ],
        },
        host: {
            srcs: [
                "ServiceManagerHost.cpp",
            ],
        },
        android: {
            shared_libs: [
                "libapexsupport",
                "libvndksupport",
            ],
        },
        recovery: {
            exclude_shared_libs: [
                "libapexsupport",
                "libvndksupport",
            ],
        },
        native_bridge: {
            exclude_shared_libs: [
                "libapexsupport",
                "libvndksupport",
            ],
        },
    },
    cflags: [
        "-DBINDER_WITH_KERNEL_IPC",
    ],
}

cc_library {
    name: "libbinder",
    defaults: [
        "libbinder_common_defaults",
        "libbinder_android_defaults",
        "libbinder_kernel_defaults",
    ],

    version_script: "libbinder.map",

    // for vndbinder
    vendor_available: true,
    recovery_available: true,
    double_loadable: true,
    // TODO(b/153609531): remove when no longer needed.
    native_bridge_supported: true,
    cmake_snapshot_supported: false,

    // libbinder does not offer a stable wire protocol.
    // if a second copy of it is installed, then it may break after security
    // or dessert updates. Instead, apex users should use libbinder_ndk.
    apex_available: [
        "//apex_available:platform",
    ],

    srcs: [
        "IMemory.cpp",
        "IShellCallback.cpp",
        "LazyServiceRegistrar.cpp",
        "MemoryBase.cpp",
        "MemoryDealer.cpp",
        "MemoryHeapBase.cpp",
        "ParcelableHolder.cpp",
        "PersistableBundle.cpp",
    ],
    target: {
        android: {
            // NOT static to keep the wire protocol unfrozen
            static: {
                enabled: false,
            },
        },
        darwin: {
            enabled: false,
        },
        recovery: {
            exclude_header_libs: [
                "jni_headers",
            ],
        },
    },

    afdo: true,
}

cc_defaults {
    name: "binder_sdk_defaults",

    cflags: [
        "-DBINDER_ENABLE_LIBLOG_ASSERT",
        "-DBINDER_DISABLE_NATIVE_HANDLE",
        "-DBINDER_DISABLE_BLOB",
        "-DBINDER_NO_LIBBASE",
    ],

    header_libs: [
        "liblog_stub",
    ],
}

cc_defaults {
    name: "libbinder_sdk_defaults",

    cmake_snapshot_supported: true,

    defaults: [
        "libbinder_common_defaults",
        "binder_sdk_defaults",
    ],

    shared_libs: [
        "libutils_binder_sdk",
    ],

    srcs: [
        "OS_non_android_linux.cpp",
        "OS_unix_base.cpp",
    ],

    visibility: [
        ":__subpackages__",
    ],

    target: {
        windows: {
            enabled: false,
        },
    },
}

cc_library_host_shared {
    name: "libbinder_sdk",
    defaults: ["libbinder_sdk_defaults"],
}

cc_library_host_shared {
    name: "libbinder_sdk_single_threaded",
    defaults: ["libbinder_sdk_defaults"],
    cflags: [
        "-DBINDER_RPC_SINGLE_THREADED",
    ],
}

cc_library {
    name: "libbinder_rpc_no_kernel",
    vendor_available: true,
    defaults: [
        "libbinder_common_defaults",
        "libbinder_android_defaults",
    ],
    visibility: [
        ":__subpackages__",
    ],
}

cc_library {
    name: "libbinder_rpc_no_blob",
    vendor_available: true,
    defaults: [
        "libbinder_common_defaults",
        "libbinder_android_defaults",
        "libbinder_kernel_defaults",
    ],
    cflags: [
        "-DBINDER_DISABLE_BLOB",
    ],
    visibility: [
        ":__subpackages__",
    ],
}

cc_library {
    name: "libbinder_rpc_no_native_handle",
    vendor_available: true,
    defaults: [
        "libbinder_common_defaults",
        "libbinder_android_defaults",
        "libbinder_kernel_defaults",
    ],
    cflags: [
        "-DBINDER_DISABLE_NATIVE_HANDLE",
    ],
    visibility: [
        ":__subpackages__",
    ],
}

cc_library {
    name: "libbinder_rpc_single_threaded",
    defaults: [
        "libbinder_common_defaults",
        "libbinder_android_defaults",
        "libbinder_kernel_defaults",
    ],
    cflags: [
        "-DBINDER_RPC_SINGLE_THREADED",
    ],
    visibility: [
        ":__subpackages__",
    ],
}

cc_library {
    name: "libbinder_rpc_single_threaded_no_kernel",
    defaults: [
        "libbinder_common_defaults",
        "libbinder_android_defaults",
    ],
    cflags: [
        "-DBINDER_RPC_SINGLE_THREADED",
    ],
    visibility: [
        ":__subpackages__",
    ],
}

cc_defaults {
    name: "libbinder_tls_shared_deps",
    shared_libs: [
        "libbinder",
        "libcrypto",
        "liblog",
        "libssl",
        "libutils",
    ],
}

cc_defaults {
    name: "libbinder_tls_defaults",
    defaults: ["libbinder_tls_shared_deps"],
    vendor_available: true,
    host_supported: true,
    cmake_snapshot_supported: true,

    header_libs: [
        "libbinder_headers",
    ],
    export_header_lib_headers: [
        "libbinder_headers",
    ],
    export_shared_lib_headers: [
        "libssl",
    ],
    export_include_dirs: ["include_tls"],
    static_libs: [
        "libbase",
    ],
    srcs: [
        "RpcTransportTls.cpp",
        "RpcTlsUtils.cpp",
    ],
}

cc_library_shared {
    name: "libbinder_tls",
    defaults: ["libbinder_tls_defaults"],
}

cc_library {
    name: "libbinder_trusty",
    vendor: true,
    srcs: [
        "RpcTransportTipcAndroid.cpp",
        "RpcTrusty.cpp",
    ],

    shared_libs: [
        "libbinder",
        "liblog",
        "libtrusty",
        "libutils",
    ],
    static_libs: [
        "libbase",
    ],
    export_include_dirs: ["include_trusty"],

    // Most of Android doesn't need this library and shouldn't use it,
    // so we restrict its visibility to the Trusty-specific packages.
    visibility: [
        ":__subpackages__",
        "//system/core/trusty:__subpackages__",
        "//vendor:__subpackages__",
    ],
}

// For testing
cc_library_static {
    name: "libbinder_tls_static",
    defaults: ["libbinder_tls_defaults"],
    visibility: [
        ":__subpackages__",
    ],
}

// AIDL interface between libbinder and framework.jar
filegroup {
    name: "libbinder_aidl",
    srcs: [
        "aidl/android/os/ConnectionInfo.aidl",
        "aidl/android/os/IClientCallback.aidl",
        "aidl/android/os/IServiceCallback.aidl",
        "aidl/android/os/IServiceManager.aidl",
        "aidl/android/os/Service.aidl",
        "aidl/android/os/ServiceDebugInfo.aidl",
        ":libbinder_accessor_aidl",
    ],
    path: "aidl",
}

filegroup {
    name: "libbinder_accessor_aidl",
    srcs: [
        "aidl/android/os/IAccessor.aidl",
    ],
    path: "aidl",
}

// TODO(b/353492849): Make this interface private to libbinder.
aidl_interface {
    name: "android.os.accessor",
    srcs: [":libbinder_accessor_aidl"],
    unstable: true,
    backend: {
        rust: {
            enabled: true,
            apex_available: [
                "com.android.virt",
            ],
        },
    },
    visibility: [
        ":__subpackages__",
        "//system/tools/aidl:__subpackages__",
        "//packages/modules/Virtualization:__subpackages__",
    ],
}

aidl_interface {
    name: "packagemanager_aidl",
    unstable: true,
    local_include_dir: "aidl",
    host_supported: true,
    srcs: [
        "aidl/android/content/pm/IPackageManagerNative.aidl",
        "aidl/android/content/pm/IStagedApexObserver.aidl",
        "aidl/android/content/pm/ApexStagedEvent.aidl",
        "aidl/android/content/pm/StagedApexInfo.aidl",
    ],
    backend: {
        rust: {
            apex_available: [
                "com.android.virt",
            ],
            enabled: true,
        },
    },
}

aidl_interface {
    name: "libbinder_aidl_test_stub",
    unstable: true,
    local_include_dir: "aidl",
    srcs: [":libbinder_aidl"],
    vendor_available: true,
    backend: {
        java: {
            enabled: false,
        },
    },
    visibility: [
        ":__subpackages__",
        "//system/tools/aidl:__subpackages__",
    ],
}

// TODO(b/184872979): remove once the Rust API is created.
cc_library {
    name: "libbinder_rpc_unstable",
    srcs: ["libbinder_rpc_unstable.cpp"],
    shared_libs: [
        "libbase",
        "libbinder",
        "libbinder_ndk",
        "liblog",
        "libutils",
    ],
    export_include_dirs: ["include_rpc_unstable"],

    // enumerate stable entry points, for apex use
    stubs: {
        symbol_file: "libbinder_rpc_unstable.map.txt",
    },

    // This library is intentionally limited to these targets, and it will be removed later.
    // Do not expand the visibility.
    visibility: [
        ":__subpackages__",
        "//packages/modules/Virtualization:__subpackages__",
        "//device/google/cuttlefish/shared/minidroid:__subpackages__",
        "//system/software_defined_vehicle:__subpackages__",
        "//visibility:any_system_partition",
    ],
}

// libbinder historically contained additional interfaces that provided specific
// functionality in the platform but have nothing to do with binder itself. These
// are moved out of libbinder in order to avoid the overhead of their vtables.
// If you are working on or own one of these interfaces, the responsible things
// to would be:
// - give them a new home
// - convert them to AIDL instead of having manually written parceling code

cc_library {
    name: "libbatterystats_aidl",
    host_supported: true,
    srcs: [
        "IBatteryStats.cpp",
    ],
    export_include_dirs: ["include_batterystats"],
    shared_libs: [
        "libbinder",
        "libutils",
    ],
}

cc_library {
    name: "libprocessinfoservice_aidl",
    host_supported: true,
    srcs: [
        "IProcessInfoService.cpp",
        "ProcessInfoService.cpp",
    ],
    export_include_dirs: ["include_processinfo"],
    shared_libs: [
        "libbinder",
        "libutils",
        "liblog",
    ],
}

cc_library {
    name: "libactivitymanager_aidl",
    srcs: [
        "ActivityManager.cpp",
        "IActivityManager.cpp",
        "IUidObserver.cpp",
        ":activity_manager_procstate_aidl",
    ],
    export_include_dirs: ["include_activitymanager"],
    shared_libs: [
        "libbinder",
        "libutils",
        "liblog",
    ],
    aidl: {
        export_aidl_headers: true,
    },
}

cc_binary {
    name: "servicedispatcher",
    host_supported: false,
    srcs: [
        "servicedispatcher.cpp",
    ],
    shared_libs: [
        "libbase",
        "libbinder",
        "liblog",
        "libutils",
        "android.debug_aidl-cpp",
    ],
}