dart-sdk/tests/ffi/sizeof_test.dart
Daco Harkes ae4631e100 [vm/ffi] Fix test sizeOf struct on arm32
Bug introduced in https://dart-review.googlesource.com/c/sdk/+/182262.

See documentation on alignment in the following places:
- pkg/vm/lib/transformations/ffi.dart
- runtime/vm/compiler/ffi/abi.cc
- runtime/vm/compiler/ffi/native_type.cc

Closes: https://github.com/dart-lang/sdk/issues/44835

Change-Id: I114dd4286e559bb230e1ee27ae5cfd8a0b0d2927
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-debug-arm-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182501
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
2021-02-03 10:21:08 +00:00

27 lines
848 B
Dart

// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
//
// SharedObjects=ffi_test_functions
import 'dart:ffi';
import "package:expect/expect.dart";
import "coordinate.dart";
get is32Bit => 4 == sizeOf<IntPtr>();
get is64Bit => 8 == sizeOf<IntPtr>();
void main() async {
if (is32Bit) {
Expect.equals(4, sizeOf<Pointer>());
// Struct is 20 bytes on ia32 and arm32-iOS, but 24 bytes on arm32-Android
// and arm32-Linux due to alignment.
Expect.isTrue(20 == sizeOf<Coordinate>() || 24 == sizeOf<Coordinate>());
} else if (is64Bit) {
Expect.equals(8, sizeOf<Pointer>());
Expect.equals(24, sizeOf<Coordinate>());
}
Expect.throws(() => sizeOf<Void>());
}