Ryan Macnak
6cc943957b
The partitioning has the property that for every reference from loading unit S to unit T, either - the reference is through a deferred prefix, or - T is guarenteed to be loaded before S The partitioning is constructed by cutting the dominator tree of the library import graph at deferred imports. It is suboptimal if there are deferred imports to multiple libraries in a connected component, but the expected use case involves loading units with a single deferred entry. Bug: https://github.com/dart-lang/sdk/issues/41974 Change-Id: I3c49044ae19112525f197b077b36e4ce874b81ac Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151470 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>
60 lines
2.4 KiB
Dart
60 lines
2.4 KiB
Dart
// Copyright (c) 2017, 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:io';
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import 'package:kernel/kernel.dart' show Component, writeComponentToText;
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import 'package:kernel/binary/ast_from_binary.dart'
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show BinaryBuilderWithMetadata;
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import 'package:vm/metadata/bytecode.dart' show BytecodeMetadataRepository;
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import 'package:vm/metadata/direct_call.dart' show DirectCallMetadataRepository;
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import 'package:vm/metadata/inferred_type.dart'
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show InferredTypeMetadataRepository;
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import 'package:vm/metadata/procedure_attributes.dart'
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show ProcedureAttributesMetadataRepository;
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import 'package:vm/metadata/table_selector.dart'
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show TableSelectorMetadataRepository;
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import 'package:vm/metadata/unboxing_info.dart'
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show UnboxingInfoMetadataRepository;
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import 'package:vm/metadata/unreachable.dart'
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show UnreachableNodeMetadataRepository;
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import 'package:vm/metadata/call_site_attributes.dart'
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show CallSiteAttributesMetadataRepository;
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import 'package:vm/metadata/loading_units.dart'
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show LoadingUnitsMetadataRepository;
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final String _usage = '''
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Usage: dump_kernel input.dill output.txt
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Dumps kernel binary file with VM-specific metadata.
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''';
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main(List<String> arguments) async {
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if (arguments.length != 2) {
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print(_usage);
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exit(1);
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}
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final input = arguments[0];
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final output = arguments[1];
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final component = new Component();
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// Register VM-specific metadata.
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component.addMetadataRepository(new DirectCallMetadataRepository());
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component.addMetadataRepository(new InferredTypeMetadataRepository());
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component.addMetadataRepository(new ProcedureAttributesMetadataRepository());
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component.addMetadataRepository(new TableSelectorMetadataRepository());
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component.addMetadataRepository(new UnboxingInfoMetadataRepository());
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component.addMetadataRepository(new UnreachableNodeMetadataRepository());
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component.addMetadataRepository(new BytecodeMetadataRepository());
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component.addMetadataRepository(new CallSiteAttributesMetadataRepository());
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component.addMetadataRepository(new LoadingUnitsMetadataRepository());
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final List<int> bytes = new File(input).readAsBytesSync();
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new BinaryBuilderWithMetadata(bytes).readComponent(component);
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writeComponentToText(component, path: output, showMetadata: true);
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}
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