![]() This CL removes static fields for storing the `@Native`'s function addresses. Instead, the function addresses are stored in the object pool for all archs except for ia32. ia32 has no AOT and no AppJit snapshots, so the addresses are directly embedded in the code. This CL removes the closure wrapping for `@Native`s. Instead of `pointer.asFunctionInternal()()` where `asFunction` returns a closure which contains the trampoline, the function is compiled to a body which contains the trampoline `Native()`. This is possible for `@Native`s because the dylib and symbol names are known statically. Doing the compilation in kernel_to_il instead of a CFE transform enables supporting static linking later. (The alternative would have been to transform in the cfe to a `@pragma('vm:cachable-idempotent')` instead of constructing the IL in kernel_to_il. To enable running resolution in ia32 in kernel_to_il.cc, the resolution function has been made available via `runtime/lib/ffi_dynamic_library.h`. Because the new calls are simply static calls, the TFA can figure out const arguments flowing to these calls. This leads to constant locations in the parameters to FfiCalls. So, this CL also introduces logic to move constants into `NativeLocation`s. TEST=runtime/vm/compiler/backend/il_test.cc TEST=tests/ffi/function_*_native_(leaf_)test.dart TEST=pkg/vm/testcases/transformations/ffi/ffinative_compound_return.dart Closes: https://github.com/dart-lang/sdk/issues/47625 Closes: https://github.com/dart-lang/sdk/issues/51618 Change-Id: Ic5d017005dedcedea40c455c4d24dbe774f91603 CoreLibraryReviewExempt: Internal FFI implementation changes Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64c-try,vm-aot-win-release-x64-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-debug-x64c-try,vm-win-release-ia32-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284300 Commit-Queue: Daco Harkes <dacoharkes@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> |
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sdk | ||
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tools | ||
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AUTHORS | ||
BUILD.gn | ||
CHANGELOG.md | ||
codereview.settings | ||
CONTRIBUTING.md | ||
DEPS | ||
LICENSE | ||
OWNERS | ||
PATENT_GRANT | ||
PRESUBMIT.py | ||
README.dart-sdk | ||
README.md | ||
sdk.code-workspace | ||
sdk_args.gni | ||
SECURITY.md | ||
WATCHLISTS |
Dart
A client-optimized language for fast apps on any platform
Dart is:
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Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.
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Productive: Make changes iteratively: use hot reload to see the result instantly in your running app.
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Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.
Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:
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Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.
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Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).
License & patents
Dart is free and open source.
See LICENSE and PATENT_GRANT.
Using Dart
Visit dart.dev to learn more about the language, tools, and to find codelabs.
Browse pub.dev for more packages and libraries contributed by the community and the Dart team.
Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).
Building Dart
If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.
There are more documents on our wiki.
Contributing to Dart
The easiest way to contribute to Dart is to file issues.
You can also contribute patches, as described in Contributing.