Alexander Markov
ac7ca17652
To enable bytecode generation, toggle kEnableKernelBytecode flag at the beginning of pkg/vm/lib/bytecode/gen_bytecode.dart. This will also enable generation of bytecode in platform dill files. Also, bytecode generation can be enabled using --gen-bytecode option of pkg/vm/tool/gen_kernel. In kernel binaries, the generated bytecode and constant pool are placed into 'vm.bytecode' metadata attached to members. pkg/vm/tool/dump_kernel tool can be used to disassemble bytecode and print constant pool. Differences between generated bytecode and original DBC are described in pkg/vm/lib/bytecode/dbc.dart. Format of constant pool is described in pkg/vm/lib/bytecode/constant_pool.dart. Currently, only a small subset of Dart language is supported. Bytecode generator will not emit vm.bytecode metadata for a member if its body has an unsupported operation. Change-Id: I27d9a361dc779ea115e5676508ee757c1754e05d Reviewed-on: https://dart-review.googlesource.com/49600 Reviewed-by: Samir Jindel <sjindel@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> Reviewed-by: Zach Anderson <zra@google.com> Reviewed-by: Régis Crelier <regis@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
25 lines
528 B
Plaintext
25 lines
528 B
Plaintext
library #lib;
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import self as self;
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import "dart:core" as core;
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[@vm.bytecode=
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Bytecode {
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Entry 0
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CheckStack
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PushConstant CP#0
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PushConstant CP#2
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IndirectStaticCall 1, CP#1
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Drop1
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PushConstant CP#3
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ReturnTOS
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}
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ConstantPool {
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[0] = String 'Hello, Dart Bytecode!'
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[1] = ArgDesc num-args 1, num-type-args 0, names []
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[2] = StaticICData target 'dart.core::print', arg-desc CP#1
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[3] = Null
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}
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]static method main() → dynamic {
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core::print("Hello, Dart Bytecode!");
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}
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