If a script uses `Platform.script` running it with as `dart
<script.dart>` and `dart run <script.dart>` would give the correct
script ("<script.dart>"), but running it with `dart run -r
<script.dart>` would report a dill file in the temp directory which is
not only surprising, but also breaking and for instance running the CFEs
strong_suite.dart via `dart run -r` didn't work.
This CL introduces --script_uri_override to the VM and makes the
resident compiler setup pass it so that when running `dart run -r
<script.dart>`, even though the vm is actually launched from a dill file
that resides in temp, `Platform.script` will actually return
`<script.dart>` - and running the CFEs strong_suite.dart via `dart run
-r` now actually works.
Tested: Added pkg/dartdev/test/commands/run_test.dart and manual testing.
Change-Id: Ia65c01834485fe06af63584baf0448dd5b9ffdb4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/510343
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
The former contents of the VM isolate are now included into each isolate group. This makes each isolate group's heap independent, and in particular allows each heap to be allocated to a separate pointer cage (not done in this CL).
The duplicated stubs that allowed PC relative calls are removed, since the originals can now be the target of PC relative calls.
The bootstrapping needing to load an AppJIT or AppAOT snapshot is reduced to allocating the oddballs. The code is entirely dropped in the AOT runtime, but the JIT runtime still has it to allow for flags to affect the compilation of the stub code. Further refactoring might be able to remove this for the JIT runtime too, with only gen_snapshot knowing how to bootstrap.
Class serialization no longer distinguishes predefined classes.
The page containing null is marked as never-evacuate. null, false and true must not move because the compiler relies on their low bits having certain patterns for some optimizations. (Previously, the entire VM isolate heap never moved.)
Compaction is disabled for IA32. Due to register pressure, some stub calls must not use a scratch register and embed the address of Code.
The page containing the call-through-safepoint stub is frozen when running with --write-protect-code and the stub is created at runtime (instead of loaded from an AppJIT or AppAOT snapshot). This stub must remain executable even during a safepoint, as a foreign call might during return during a safepoint and only block after the stub directs it to the runtime.
The snapshot symbols are renamed to kDartSnapshotData and kDartSnapshotText. There is no need to distinguish the VM isolate's snapshot, and snaphots are per isolate group not per isolate. Aliases with the old names are added to ease migration.
Some global flags that were automatically set based on the VM isolate's snapshot are now isolate group flags and automatically set by the isolate group's snapshot.
TEST=ci
Change-Id: Iee82016057d609112e9b021d178fc3d4d18b5044
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/500621
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
SLSA-Policy-Verified: SLSA Policy Verification Service <devtools-gerritcodereview-exitgate@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
The DartRuntimeService based VM service implementation now has support
for launching DDS instances and responding to _yieldControlToDDS RPC
invocations from DDS instances.
package:vm_service test suite is ~97% passing with this change.
TEST=Local testing.
Change-Id: I2f2f1b0926845134578f08d073ed7606f1fc4173
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/490320
Reviewed-by: Jessy Yameogo <yjessy@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
This change fixes the following problems when parsing DART_VM_OPTIONS
environment variable:
* Resize vm_options to accomodate for extra flags from
DART_VM_OPTIONS.
* Prepend executable name to the argv to be compatible with
implementation of Platform.executableArguments.
* Use strchr instead of strtok_r to avoid modifying value of
DART_VM_OPTIONS environment variable in place.
TEST=pkg/dartdev/test/commands/compile_test.dart
Fixes https://github.com/dart-lang/sdk/issues/62957
Fixes https://github.com/dart-lang/sdk/issues/62958
Change-Id: I86e0ece20844888333b2a0765c82a5ad1fba54b6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/491001
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
This change includes an initial implementation of the new VM service
implementation based on `package:dart_runtime_service`, along with the
necessary plumbing to start it in place of the legacy VM service
implementation.
The entrypoint for the new VM service implementation is located in
dart_runtime_service_vm/bin/vm_service_entrypoint.dart, which is
compiled into AppJIT and AOT snapshots when the
`--include-experimental-vm-service` flag is provided to `build.py`. To run
the VM with the new VM service implementation, the
`--experimental-vm-service` flag must be provided.
Currently, the experimental VM service implementation supports:
- User specified ports
- Authentication code flags
- Enabling the HTTP server via SIGQUIT
- Some service protocol RPCs that don't require an isolate ID (e.g.,
`getVM`)
See go/dart-runtime-services-unification for more details.
TEST=Manual
CoreLibraryReviewExempt: dart:_vmservice is private
Change-Id: I4a58cd1fa0a386313baa3d5c5345720231279123
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/484820
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
Instead of requiring embedder to initialize dart:io by bits and pieces
by invoking various hooks and setting fields provide a structured C++
API for preparing dart:io for execution.
TEST=ci
CoreLibraryReviewExempt: VM specific changes only
Change-Id: I66e95c0a451d384b4f7582d1df059e506a6a6964
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/454062
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
- split the Dart CLI tool out of the VM into it's own embedder which
runs in AOT mode. The pure Dart VM executable is called 'dartvm' and
has no Dart CLI functionality in it
- the Dart CLI executable parses the CLI commands and invokes the rest
of the AOT tools in the same process, for the 'run' and 'test'
commands it execs a process which runs 'dartvm' to run
- 'dart hello.dart' execs the 'dartvm' process and runs 'hello.dart'
- the Dart CLI is not generated for ia32 as we are not shipping a
Dart SDK for ia32 anymore (support to execute the 'dartvm' for ia32
architecture is retained)
- the Dart CLI tool is not built in the internal Dart SDK builds
TEST=ci
Some performance improvement numbers
'dart format pkg/dartdev' goes from 1.17 secs to 0.22 secs
'dart doc pkg/dartdev' goes from 100.2 secs to 66.6 secs
'dart fix pkg/dartdev' goes from 19.3 secs to 14.5 secs
Change-Id: I66984a26cb2ab014b34dc1873f1f3d2884e13518
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/364202
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
This CL introduces an `IsolateData::asset_base_path` which contains
the fully resolved base path used for assets which are loaded with a
relative path. (Resolving both PATHEXT and symlinks.)
The asset base path is now only resolved once, instead of on every
relative asset load.
The asset base path is now eagerly resolved.
To prevent existing error messages for files not existing changing in
`dartdev` and `Isolate.spawnUri`, files not existing errors are
ignored.
To prevent `tests/standalone/io/named_pipe_script_test.dart` from
failing, failing to canonicalize a file path is treated as no asset
base path rather than reporting a failure.
TEST=pkg/dartdev/test/native_assets/*.dart
Bug: https://github.com/dart-lang/sdk/issues/60946
Change-Id: I79a9144d220dfb3e54311725d41f8f91c88db3a1
Cq-Include-Trybots: luci.dart.try:pkg-linux-debug-try,pkg-linux-release-arm64-try,pkg-linux-release-try,pkg-mac-release-try,pkg-mac-release-arm64-try,pkg-win-release-arm64-try,pkg-win-release-try,vm-aot-dyn-linux-debug-x64-try,vm-aot-android-release-arm64c-try,vm-aot-linux-debug-x64-try,vm-aot-mac-debug-arm64-try,vm-aot-win-debug-arm64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-msan-linux-release-x64-try,vm-asan-linux-release-x64-try,vm-linux-release-x64-try,vm-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/435421
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
When dynamic modules are enabled, standalone VM can now run bytecode
binaries directly. Also, if --interpreter flag is specified, Dart
source is compiled to bytecode and interpreter is used to run it.
This will allow us to test VM service capabilities including
debugging and hot reload against the interpreter.
TEST=manual
Change-Id: Ibb5a67f4844485c4ed90b8a7568dc42fa552fcac
Cq-Include-Trybots: luci.dart.try:vm-aot-dyn-linux-debug-x64-try,vm-aot-dyn-linux-product-x64-try,vm-dyn-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/436421
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
The name has always been annoying because it did not add strong typing. And now there aren't variants of the VM platform to distinguish.
Leave a copy at the old name to not immediately break illegal uses.
TEST=ci
Cq-Include-Trybots: luci.dart.try:flutter-analyze-try,flutter-frontend-try,flutter-linux-try
Change-Id: Ie76fa7f16940aa1ba8d582eb5197f0ae55dc8938
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/429828
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Adds a Mach-O loader, similar to the existing ELF loader, that
can be used on platforms that do not support loading Mach-O dynamic
libraries via dlopen().
Other changes:
* Renames the --force-load-elf-from-memory command line argument
to --force-load-from-memory.
* Use CPU_TYPE_ANY and CPU_SUBTYPE_ANY for architectures that do
not have specific constants in <mach/machine.h> (e.g., RISCV),
as the snapshot header check after loading also catches architecture
mismatches.
* Emit the unwinding information at the end of the text segment
for Windows Mach-O snapshots as is done for ELF ones.
TEST=vm/dart/unobfuscated_static_symbols_test
vm/dart/use_dwarf_stack_traces_flag_test
Issue: https://github.com/dart-lang/sdk/issues/60307
Change-Id: I34a2a334f47d18d5c4f4a712956e71fd0ac94024
Cq-Include-Trybots: luci.dart.try:vm-aot-linux-debug-x64-try,vm-mac-release-arm64-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-dwarf-linux-product-x64-try,vm-linux-debug-x64-try,vm-mac-debug-arm64-try,vm-fuchsia-release-x64-try,vm-fuchsia-release-arm64-try,vm-linux-debug-ia32-try,vm-aot-linux-debug-simarm_x64-try,vm-aot-linux-debug-simriscv32-try,vm-aot-linux-debug-simriscv64-try,vm-aot-linux-release-simarm_x64-try,vm-gcc-linux-try,vm-ubsan-linux-release-arm64-try,vm-aot-win-release-arm64-try,vm-aot-win-release-x64-try,vm-win-release-x64-try,vm-win-release-arm64-try,vm-aot-win-debug-arm64-try,vm-win-debug-arm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/430100
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Use VmInteropHandler for invoking sub commands instead of running them
in an isolate. Running sub commands in an isolate causes an increased footprint.
Changing this to use VmInteropHandler avoids the additional memory footprint.
Commands that need to use an AOT runtime for execution now exec the AOT
runtime and run the command.
TEST=ci
Change-Id: Ic96845b19951170effea3dd3619f798e2c72968a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/402781
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
TEST=tests added to pkg/vm_service/test
CoreLibraryReviewExempt: This CL does not include any core library API
changes, only VM Service implementation changes within
sdk/lib/vmservice/.
Change-Id: I191bb7f3ec3abf1f42405a43ce72016796bc43f9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/394523
Reviewed-by: Ben Konyi <bkonyi@google.com>
Use VmInteropHandler for invoking sub commands instead of running them
in an isolate. Running sub commands in an isolate causes an increased footprint.
Changing this to use VmInteropHandler avoids the additional memory footprint.
Commands that need to use an AOT runtime for execution now exec the AOT
runtime and run the command.
TEST=ci
Change-Id: If7aed1cab2fec9d9940bd562ad5aa9c4e9a6ac7f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/398604
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Brian Quinlan <bquinlan@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
Move optimized handling of Double.truncateToDouble, floorToDouble,
ceilToDouble, floor and ceil from flow graph construction to
the canonicalization pass.
This is needed in order to maintain stable flow graphs between
app-jit snapshot training (which is performed with --target_unknown_cpu)
and running from app-jit snapshot without --target_unknown_cpu.
TEST=ci (vm-appjit-*)
Fixes https://github.com/dart-lang/sdk/issues/56018
Change-Id: I7e3e4ce917984f52db239506ea3de0c55af00567
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/372140
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Before this CL, becase of optimizations, coverage of some of these goes
away, making coverage unreliable.
I believe this fixes the issues for "regular" runs (at least it seems to
be stable on the CFE coverage tests).
If setting `--optimization-counter-threshold=-1` there'll still be
trouble though and we would have to also insert these calls in the start
of FunctionBody and the start of FieldInitializer for it to produce the
same results.
TEST=pkg/vm_service/test/coverage_instance_call_after_optimization_test.dart,pkg/vm_service/test/coverage_static_call_after_optimization_test.dart
Bug: https://github.com/dart-lang/sdk/issues/42061
Bug: https://github.com/dart-lang/sdk/issues/55959
Bug: https://github.com/dart-lang/sdk/issues/56018
Change-Id: I34947f0d4b123e52ce67b71a195782d31e4bda16
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/370501
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
This CL moves native assets resolution to the embedder.
The Dart VM looks up the asset path (for example
`['relative', 'foo.so']`) with the asset id. The embedder defines
callbacks for asset loading, and returns a handle to the dylib.
Then the VM calls the embedder again with `dlsym` to lookup the symbol.
The Dart VM & kernel compiler are responsible for the asset id to
asset path mapping. The kernel compiler compiles it into the snapshot
and the VM looks it up in the snapshot.
Relative paths are resolved relative to the isolate script uri (kernel
snapshot, jit snapshot, aot snapshot, or `dart compile exe` result).
The embedder is responsible for remembering the script uri it set when
spawning the isolate group.
This CL does not add `dlclose` or `dladdr` embedder callbacks yet.
Bug: https://github.com/dart-lang/sdk/issues/55521
Bug: https://github.com/dart-lang/sdk/issues/55966
TEST=pkg/dartdev/test/native_assets/build_test.dart
TEST=tests/ffi/native_assets/asset_relative_test.dart
Bug: https://github.com/dart-lang/sdk/issues/55410
Bug: https://github.com/dart-lang/sdk/issues/55523
Bug: https://github.com/dart-lang/sdk/issues/55207
Change-Id: I75ec4a368c5fb3d2f76b03771e796ff56bcac941
Cq-Include-Trybots: dart/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-optimization-level-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64-try,vm-aot-win-debug-x64c-try,pkg-linux-debug-try,pkg-linux-release-arm64-try,pkg-mac-release-try,pkg-mac-release-arm64-try,pkg-win-release-try,pkg-win-release-arm64-try,vm-aot-asan-linux-release-x64-try,vm-asan-linux-release-x64-try,vm-aot-msan-linux-release-x64-try,vm-msan-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/361881
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
This CL removes support for --no-sound-null-safety option, the VM will
only run sound null safety code.
First part of deleting support for legacy and unsound null safe code.
TEST=CI
Change-Id: I9dbed10a18ef102533d6af516ff5075297d17b74
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/357183
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
This adds support for printing the DTD connection information to stdout
when --print-dtd-uri is passed.
This change also fixes an issue where DDS would fail to spawn an isolate
with the DTD snapshot when DDS was running in AOT mode. This means the
SDK must be shipped with both AppJIT and AOT DTD snapshots, at least
until dartdev is moved to run from AOT.
Fixes https://github.com/dart-lang/sdk/issues/55034
TEST=run_test.dart
Change-Id: I788ef9bfe76297a8d594992a2aac440ed9e2ecac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/358541
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Kenzie Davisson <kenzieschmoll@google.com>
The DART_VM_OPTIONS environment variable allows for users to specify a
set of VM options to be processed by the Dart runtime in a
self-contained executable created by `dart compile exe`.
DART_VM_OPTIONS should be a comma separated list of options and flags
with no whitespace. Options that accept multiple values as a list of
comma separated values are not supported and will result in argument
parsing failing.
Fixes https://github.com/dart-lang/sdk/issues/54281
TEST=compile_test.dart
Change-Id: I1d94ab1b992753a7dd69da722c051c9464d6d1cf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/353820
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
Currently the dds process is being launched from dartdev and
this causes problems when the dartdev commands 'run' and 'test'
are implemented by spawning child processes (this is needed
to make dartdev an AOT snapshot).
This CL attempts to lauch dds from the service isolate code.
TEST=ci
Change-Id: Iad00a17473a630659f15a5c73be0f5385ea35bdd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/350688
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
The `gen_snapshot` binary passes `--link_natives_lazily` if
it generates AppJIT/AOT snapshots (see `runtime/bin/gen_snapshot.cc`)
=> The `dart` binary should do so as well.
TEST=ci
Change-Id: I88d69f73a38cb23d4f7482739e2e0fda3c65ecef
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/330760
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
We were exporting all symbols to the dynamic table so that they could be looked up using `dladdr` for the profiler and backtracer. The symbols include our statically-linked libcxx, which can create trouble when another DSO has a different version of libcxx. Now we export only the VM embedding API functions (`Dart_*`) and use a specially produced table to do the symbolization.
TEST=runtime/tests/vm/dart/exported_symbols_test.dart
TEST=runtime/tests/vm/dart/symbolized_crash_test.dart
Bug: https://github.com/dart-lang/sdk/issues/53267
Change-Id: I2ee494fba86f67127ba0f6f402622f01a4662207
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/323702
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Creation of AppJit snapshot will not include the source of [Script]
objects (see `UntaggedScript::snapshot_to`). As a result there's no
point in letting the CFE embed the sources into the kernel if we
only use it to create an AppJit snapshot.
This is also in line with build rules for our dart-sdk, where we do the
kernel compilation separately, see utils/application_snapshot.gni:
```
template("application_snapshot") {
...
# Build the kernel file using the prebuilt VM to speed up the
# debug and simulator builds.
prebuilt_dart_action(target_name + "_dill") {
...
args = [
...
"--no-embed-sources",
...
]
[[[
}
...
}
```
TEST=ci
Change-Id: I4e17e49dc21af6102d62c2278dbd6ebbe387f7e8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/313560
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
Patchset 1 is a reland of commit
f52bdb96aa, and Patchset 2 adds a
corrected reland of commit 0d0e301979.
The leak in g3 was caused by moving the `state_ = 0;` line before the
`owns_label()` check in `TimelineEvent::Reset`.
TEST=Ran the g3 tests that were failing on a cbuild copy with these
changes (sponge2/1134a5bb-5168-4e4c-bb03-72a7d7ad6ab4).
Original change's description:
> [VM/Timeline] Add Dart_RecordTimelineEvent Embedder API to support reporting flow events that can be serialized in Perfetto's format
>
> Added a deprecation notice to Dart_TimelineEvent as well.
>
> TEST=Used the embedder API to report an events of each of the following types:
> Dart_Timeline_Event_Begin, Dart_Timeline_Event_Duration,
> Dart_Timeline_Event_Instant, Dart_Timeline_Event_Async_Begin, and
> Dart_Timeline_Event_Async_Instant, each associated with flow IDs. Then,
> retrieved the trace using GetPerfettoVMTimeline and checked that flow arrows
> were displayed correctly in the Perfetto trace viewer.
>
> Change-Id: I82e49554b5970767e306dc4149a782e99a5c6512
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/302963
> Commit-Queue: Derek Xu <derekx@google.com>
> Reviewed-by: Ben Konyi <bkonyi@google.com>
Change-Id: I08783d6b5575fb3fe43da3203e58902bf9b7d038
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/308721
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Derek Xu <derekx@google.com>
This reverts commit f52bdb96aa.
Reason for revert: https://dart-review.googlesource.com/c/sdk/+/308360
was reverted due to g3 problems, and the code in this CL will leak
without the code in that CL.
Original change's description:
> [VM/Timeline] Add Dart_RecordTimelineEvent Embedder API to support reporting flow events that can be serialized in Perfetto's format
>
> Added a deprecation notice to Dart_TimelineEvent as well.
>
> TEST=Used the embedder API to report an events of each of the following types:
> Dart_Timeline_Event_Begin, Dart_Timeline_Event_Duration,
> Dart_Timeline_Event_Instant, Dart_Timeline_Event_Async_Begin, and
> Dart_Timeline_Event_Async_Instant, each associated with flow IDs. Then,
> retrieved the trace using GetPerfettoVMTimeline and checked that flow arrows
> were displayed correctly in the Perfetto trace viewer.
>
> Change-Id: I82e49554b5970767e306dc4149a782e99a5c6512
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/302963
> Commit-Queue: Derek Xu <derekx@google.com>
> Reviewed-by: Ben Konyi <bkonyi@google.com>
Change-Id: I98a259c7de8fa4b7dbcbe42f7332ab20b553e9cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/308680
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Derek Xu <derekx@google.com>
Added a deprecation notice to Dart_TimelineEvent as well.
TEST=Used the embedder API to report an events of each of the following types:
Dart_Timeline_Event_Begin, Dart_Timeline_Event_Duration,
Dart_Timeline_Event_Instant, Dart_Timeline_Event_Async_Begin, and
Dart_Timeline_Event_Async_Instant, each associated with flow IDs. Then,
retrieved the trace using GetPerfettoVMTimeline and checked that flow arrows
were displayed correctly in the Perfetto trace viewer.
Change-Id: I82e49554b5970767e306dc4149a782e99a5c6512
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/302963
Commit-Queue: Derek Xu <derekx@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>