1. Run native finalizers before sending isolate exit message. This way
users can rely on the isolate exit message for both (1) no Dart code
executing anymore on that isolate _and_ (2) all native finalizers
having run. Alternatively, we could opt to not provide this second
guarantee and document this.
2. Fix UBSAN error by making SetArgumentTo42's argument a `void*`.
3. Fix bug in debug mode, stop reading tags from forwarding addresses.
4. Small optimization: Don't promote 0 bytes from new to old space.
5. Skip finalizer_isolate_groups_run_gc_test in optcounter mode.
In hot reload mode, GC is guaranteed to run. On all other bots GC
does not run (nothing happens in the other isolate group). However,
in optcounter mode enough happens in the other isolate group to
trigger GCs. Alternatively, we could loosen the test to allow either
a GC to happen or not.
TEST=runtime/tests/vm/dart(_2)/finalizer/*
TEST=runtime/tests/vm/dart(_2)/isolates/fast_object_copy_test.dart
TEST=runtime/vm/object_test.cc
TEST=tests/ffi(_2)/vmspecific_native_finalizer_*
Closes: https://github.com/dart-lang/sdk/issues/48740
Closes: https://github.com/dart-lang/sdk/issues/48715
Closes: https://github.com/dart-lang/sdk/issues/48674
Change-Id: I5e260e087aef48524f2214f5b332caeda18f2e37
Cq-Include-Trybots: luci.dart.try:vm-kernel-ubsan-linux-release-x64-try,vm-kernel-precomp-ubsan-linux-release-x64-try,vm-canary-linux-debug-try,vm-kernel-optcounter-threshold-linux-release-x64-try,vm-kernel-optcounter-threshold-linux-release-ia32-try,app-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/240043
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Daco Harkes
4b322a398a