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Commit 6dfa8c92 authored by Andrei Homescu's avatar Andrei Homescu
Browse files

libbinder_rs: Add libbinder_rs_on_trusty_mock 

Build a mock version of Trusty libbinder_rs
on Android for build testing purposes.

Bug: 242243245
Test: m libbinder_rs_on_trusty_mock
Change-Id: I1b61550af6fbbeac68903c41b5bd20729973b066
parent 40dbf25a

libs/binder/Android.bp

+7 −0
Original line number Diff line number Diff line
@@ -229,6 +229,7 @@ cc_defaults { 
cc_library_headers {

    name: "trusty_mock_headers",

    host_supported: true,

    vendor_available: true,



    export_include_dirs: [

        "trusty/include",
@@ -243,12 +244,18 @@ cc_library_headers { 
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",

libs/binder/rust/Android.bp

+57 −0
Original line number Diff line number Diff line
@@ -34,6 +34,21 @@ rust_library { 
    min_sdk_version: "Tiramisu",

}



rust_library {

    name: "libbinder_rs_on_trusty_mock",

    crate_name: "binder",

    srcs: ["src/lib.rs"],

    cfgs: [

        "trusty",

    ],

    rustlibs: [

        "libbinder_ndk_sys_on_trusty_mock",

        "libdowncast_rs",

        "liblibc",

    ],

    vendor: true,

}



rust_library {

    name: "libbinder_tokio_rs",

    crate_name: "binder_tokio",
@@ -89,6 +104,26 @@ rust_library { 
    visibility: [":__subpackages__"],

}



rust_library {

    name: "libbinder_ndk_sys_on_trusty_mock",

    crate_name: "binder_ndk_sys",

    srcs: [

        "sys/lib.rs",

        ":libbinder_ndk_bindgen_on_trusty_mock",

    ],

    cfgs: [

        "trusty",

    ],

    shared_libs: [

        "libbinder_ndk_on_trusty_mock",

    ],

    vendor: true,

    // Lints are checked separately for libbinder_ndk_sys.

    // The Trusty mock copy pulls in extra headers that

    // don't pass the lints for the bindgen output.

    lints: "none",

}



rust_bindgen {

    name: "libbinder_ndk_bindgen",

    crate_name: "binder_ndk_bindgen",
@@ -125,6 +160,28 @@ rust_bindgen { 
    min_sdk_version: "Tiramisu",

}



rust_bindgen {

    name: "libbinder_ndk_bindgen_on_trusty_mock",

    crate_name: "binder_ndk_bindgen",

    wrapper_src: "sys/BinderBindings.hpp",

    source_stem: "bindings",

    defaults: [

        "trusty_mock_defaults",

    ],



    bindgen_flag_files: [

        // Unfortunately the only way to specify the rust_non_exhaustive enum

        // style for a type is to make it the default

        // and then specify constified enums for the enums we don't want

        // rustified

        "libbinder_ndk_bindgen_flags.txt",

    ],

    shared_libs: [

        "libbinder_ndk_on_trusty_mock",

        "libc++",

    ],

}



rust_test {

    name: "libbinder_rs-internal_test",

    crate_name: "binder",

libs/binder/rust/src/lib.rs

+4 −4
Original line number Diff line number Diff line
@@ -100,9 +100,9 @@ mod error; 
mod native;

mod parcel;

mod proxy;

#[cfg(not(target_os = "trusty"))]

#[cfg(not(trusty))]

mod service;

#[cfg(not(target_os = "trusty"))]

#[cfg(not(trusty))]

mod state;



use binder_ndk_sys as sys;
@@ -112,13 +112,13 @@ pub use binder::{BinderFeatures, FromIBinder, IBinder, Interface, Strong, Weak}; 
pub use error::{ExceptionCode, IntoBinderResult, Status, StatusCode};

pub use parcel::{ParcelFileDescriptor, Parcelable, ParcelableHolder};

pub use proxy::{DeathRecipient, SpIBinder, WpIBinder};

#[cfg(not(target_os = "trusty"))]

#[cfg(not(trusty))]

pub use service::{

    add_service, force_lazy_services_persist, get_declared_instances, get_interface, get_service,

    is_declared, is_handling_transaction, register_lazy_service, wait_for_interface,

    wait_for_service, LazyServiceGuard,

};

#[cfg(not(target_os = "trusty"))]

#[cfg(not(trusty))]

pub use state::{ProcessState, ThreadState};



/// Binder result containing a [`Status`] on error.

libs/binder/rust/src/native.rs

+2 −2
Original line number Diff line number Diff line
@@ -327,7 +327,7 @@ impl<T: Remotable> InterfaceClassMethods for Binder<T> { 
    /// contains a `T` pointer in its user data. fd should be a non-owned file

    /// descriptor, and args must be an array of null-terminated string

    /// pointers with length num_args.

    #[cfg(not(target_os = "trusty"))]

    #[cfg(not(trusty))]

    unsafe extern "C" fn on_dump(

        binder: *mut sys::AIBinder,

        fd: i32,
@@ -374,7 +374,7 @@ impl<T: Remotable> InterfaceClassMethods for Binder<T> { 
    }



    /// Called to handle the `dump` transaction.

    #[cfg(target_os = "trusty")]

    #[cfg(trusty)]

    unsafe extern "C" fn on_dump(

        _binder: *mut sys::AIBinder,

        _fd: i32,

libs/binder/rust/sys/lib.rs

+3 −1
Original line number Diff line number Diff line
@@ -25,7 +25,9 @@ mod bindings { 
}



// Trusty puts the full path to the auto-generated file in BINDGEN_INC_FILE

// and builds it with warnings-as-errors, so we need to use #[allow(bad_style)]

// and builds it with warnings-as-errors, so we need to use #[allow(bad_style)].

// We need to use cfg(target_os) instead of cfg(trusty) here because of

// the difference between the two build systems, which we cannot mock.

#[cfg(target_os = "trusty")]

#[allow(bad_style)]

mod bindings {