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TEST=ffi/external_typed_data_finalizer_test and others Change-Id: Ic82e051ad5f551ceeecc0ff41efaa2bb9ee4914a Cq-Include-Trybots: luci.dart.try:vm-fuchsia-release-arm64-try,vm-fuchsia-release-x64-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/332429 Reviewed-by: Tess Strickland <sstrickl@google.com> Auto-Submit: Daco Harkes <dacoharkes@google.com> Commit-Queue: Daco Harkes <dacoharkes@google.com>
63 lines
1.9 KiB
Dart
63 lines
1.9 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:ffi';
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import 'dart:io' show Platform;
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import 'package:ffi/ffi.dart';
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final _dylibExtension = () {
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if (Platform.isLinux || Platform.isAndroid || Platform.isFuchsia)
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return '.so';
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if (Platform.isMacOS) return '.dylib';
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if (Platform.isWindows) return '.dll';
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throw Exception('Platform not implemented.');
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}();
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final _dylibPrefix = Platform.isWindows ? '' : 'lib';
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String dylibName(String name) => '$_dylibPrefix$name$_dylibExtension';
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String platformPath(String name, {String? path}) {
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path ??= '';
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return path + dylibName(name);
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}
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DynamicLibrary dlopenPlatformSpecific(String name, {String? path}) {
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String fullPath = platformPath(name, path: path);
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return DynamicLibrary.open(fullPath);
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}
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/// On Linux and Android.
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const RTLD_LAZY = 0x00001;
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/// On Android Arm.
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const RTLD_GLOBAL_android_arm32 = 0x00002;
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/// On Linux and Android Arm64.
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const RTLD_GLOBAL_rest = 0x00100;
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final RTLD_GLOBAL = Abi.current() == Abi.androidArm
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? RTLD_GLOBAL_android_arm32
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: RTLD_GLOBAL_rest;
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@Native<Pointer<Void> Function(Pointer<Char>, Int)>()
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external Pointer<Void> dlopen(Pointer<Char> file, int mode);
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/// Returns dylib
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Object dlopenGlobalPlatformSpecific(String name, {String? path}) {
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if (Platform.isLinux || Platform.isAndroid || Platform.isFuchsia) {
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// TODO(https://dartbug.com/50105): enable dlopen global via package:ffi.
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return using((arena) {
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final dylibHandle = dlopen(
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platformPath(name).toNativeUtf8(allocator: arena).cast(),
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RTLD_LAZY | RTLD_GLOBAL);
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return dylibHandle;
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});
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} else {
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// The default behavior on these platforms is RLTD_GLOBAL already.
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return dlopenPlatformSpecific(name, path: path);
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}
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}
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