Alexander Markov
8dea340fda
Alignment of metadata sections in kernel binary files was introduced in https://dart-review.googlesource.com/c/sdk/+/83543 in order to keep bytecode instructions aligned without copying them from kernel binaries. When multiple kernel files are concatenated, metadata sections could become unaligned if sizes of kernel files are not aligned. This change adds padding into kernel binaries (before component index) to make sure that size of kernel binaries is a multiple of 8. Fixes https://github.com/dart-lang/sdk/issues/35443 Change-Id: Ic7dc0da66c699ef406a325e69fe277e9d9e3b836 Reviewed-on: https://dart-review.googlesource.com/c/87741 Commit-Queue: Alexander Markov <alexmarkov@google.com> Auto-Submit: Alexander Markov <alexmarkov@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
Dart Kernel
Dart Kernel is a small high-level language derived from Dart. It is designed for use as an intermediate format for whole-program analysis and transformations, and to be consumed by codegen and execution backends.
The kernel language has an in-memory representation in Dart and can be serialized as binary or text.
Both the kernel language and its implementations are unstable and are under development.
This package contains the Dart part of the implementation and contains:
- A transformable IR for the kernel language
- Serialization of kernel code
Note: The APIs in this package are in an early state; developers should be careful about depending on this package. In particular, there is no semver contract for release versions of this package. Please depend directly on individual versions.
See ast.dart for the in-memory IR, or binary.md for a description of the binary format. For now, the textual format is very ad-hoc and cannot be parsed back in.