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Commit f3e89b8d authored by Justin Yun's avatar Justin Yun
Browse files

Define __INTRODUCED_IN_LLNDK 

Symbols with __INTRODUCED_IN_LLNDK are available for LLNDK only if
the vendor api level set by the RELEASE_BOARD_API_LEVEL is equal to
or newer than the target vendor api level in __INTRODUCED_IN_LLNDK.

This works only for the vendor variants at the same time ignoring
__INTRODUCED_IN annotation for the vendor variants. On the other
hand, __INTRODUCED_IN_LLNDK will be ignored from non-vendor variants.

Bug: 302113279
Test: build
Change-Id: I5317a73dbc73095f8d5d95131ca4d9ed39df6be1
parent 3289747a

libvendorsupport/Android.bp

+18 −0
Original line number Diff line number Diff line
@@ -34,3 +34,21 @@ cc_library { 
        "liblog",

    ],

}



cc_library_headers {

    name: "libvendorsupport_llndk_headers",

    host_supported: true,

    vendor_available: true,

    recovery_available: true,

    ramdisk_available: true,

    vendor_ramdisk_available: true,

    native_bridge_supported: true,



    export_include_dirs: ["include_llndk"],

    llndk: {

        llndk_headers: true,

    },



    system_shared_libs: [],

    stl: "none",

}

libvendorsupport/include_llndk/android/llndk-versioning.h

0 → 100644
+48 −0
Original line number Diff line number Diff line 
// Copyright (C) 2024 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.



#pragma once



#include <sys/cdefs.h>



__BEGIN_DECLS



#if defined(__ANDROID_VENDOR__)



// LLNDK (https://source.android.com/docs/core/architecture/vndk/build-system#ll-ndk) is similar to

// NDK, but uses its own versioning of YYYYMM format for vendor builds. The LLNDK symbols are

// enabled when the vendor api level is equal to or newer than the ro.board.api_level.

#define __INTRODUCED_IN_LLNDK(vendor_api_level)                                             \

    _Pragma("clang diagnostic push") _Pragma("clang diagnostic ignored \"-Wgcc-compat\"")   \

            __attribute__((enable_if(                                                       \

                    __ANDROID_VENDOR_API__ >= vendor_api_level,                             \

                    "available in vendor API level " #vendor_api_level " that "             \

                    "is newer than the current vendor API level. Guard the API "            \

                    "call with '#if (__ANDROID_VENDOR_API__ >= " #vendor_api_level ")'."))) \

            _Pragma("clang diagnostic pop")



// For the vendor libraries, __INTRODUCED_IN must be ignored because they are only for NDKs but not

// for LLNDKs.

#undef __INTRODUCED_IN

#define __INTRODUCED_IN(x)



#else  // __ANDROID_VENDOR__



// For non-vendor libraries, __INTRODUCED_IN_LLNDK must be ignored because it must not change

// symbols of NDK or the system side of the treble boundary.

#define __INTRODUCED_IN_LLNDK(vendor_api_level)



#endif  // __ANDROID_VENDOR__



__END_DECLS