Commit Graph

32 Commits

Author SHA1 Message Date
Tess Strickland 7af4d14267 [vm,dyn_modules] Mark extension type members appropriately.
TEST=pkg/vm_service/test/step_through_extension_type_method_call_test

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Change-Id: I3bf331e175847280964fd42eb027e9f812598bf2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/464705
Auto-Submit: Tess Strickland <sstrickl@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2025-12-02 06:31:15 -08:00
Tess Strickland 1125460f2e [vm,dyn_modules] Allow desugared const constructors.
The front end may desugar some const constructors into procedures, so be
less strict with what is expected in the list of const constructors.

Also updates SourceReport to check all Functions with is_const() true
against the collected const constructor hits and not just Constructors.

TEST=ci

Fixes: https://github.com/dart-lang/sdk/issues/61947

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Change-Id: I092938eeeb0459de9b3d95400a538ec6528c43fe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/462442
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2025-11-17 06:56:33 -08:00
Tess Strickland 48b5eeb1ed [vm,dyn_modules] Fix constant coverage info for scripts without sources.
Also the pending objects list can be added to while handling other
pending objects, so the length of the list must be re-retrieved on each
iteration.

TEST=pkg/vm_service/test/coverage_leaf_function_test.dart

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Change-Id: I1089515f3e967ddc41fb82ce9f0541a81b9529d2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/452784
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2025-10-02 09:11:22 -07:00
Tess Strickland 99a370942b [vm,dyn_modules] Update some coverage information for bytecode.
Add a flag to SourceFile which is true if the associated script
contains a list of covered const constructors, and serialize said
list if true.

Delay reading and resolving the list of covered const constructors in
the bytecode reader until code is read.

Update usage counters for interpreted functions in Entry instructions.

Fix up cases where SourceReport assumed compiled code as appropriate.

Remaining:
* Record call and assert coverage information if the current isolate
  group has coverage enabled.
* Record branch coverage information if the current isolate group
  has branch coverage enabled.

TEST=pkg/vm_service pkg/dart2bytecode

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Change-Id: I14b6ffba1e175993e992c0fe939473557303bfeb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/449900
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2025-10-01 09:51:59 -07:00
Tess Strickland a90f39098c [vm,dyn_modules] Add bytecode closures to the ClosureFunctionCache.
This allows Debugger::FindNextFit to locate source positions within
inner closures.

TEST=pkg/vm_service/test

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Change-Id: I57cf3073e2013c1e395f3897fd73d1f3073922ac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/449541
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2025-09-15 15:31:33 -07:00
Tess Strickland 827551f8e0 [vm,dyn_modules] Fix ActivationFrame::ContextLevel for bytecode frames.
Instead of using the computed LocalVarDescriptors when the
frame is interpreted, use the LocalVariableInfo in the serialized
bytecode to find which Scope is currently active.

Add printing of local variable information to the bytecode
disassembler.

TEST=pkg/vm_service/test

Change-Id: I7bd15056e4e2a947ad16ffb83a50447c2ba59994
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Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/449340
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2025-09-15 08:14:47 -07:00
Tess Strickland 74f753f32d [vm,dyn_modules] More work on bytecode debugger support.
Detects yield points in Debugger::IsAtAsyncJump for bytecode by seeing
if the currently executing instruction is a direct call to an await
or yield compiled stub.

Adds a ResumptionBreakpointHandler runtime entry that is called
during Interpreter::Resume() if the current isolate has resumption
breakpoints.

Similarly, all the places where a DebugCheck could be emitted if
debugging stops are requested now include an explicit source position
emission when source positions are requested but debugger stops are not,
to ensure the debugger has appropriate information.

Fixes CompareTopDartFrameTo returning kSelf for non-top frames when
the top frame was interpreted but the stepping frame was not or
vice versa.

TEST=pkg/vm_service/test

Change-Id: I88cdc37cf745f30e8dfb6b14c19fc9b2c4cbaf2d
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Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/446300
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2025-09-12 04:19:40 -07:00
Alexander Markov 5f3466ea7c [vm,dyn_modules] Support deferred libraries
TEST=ci

Change-Id: I0c9ba10b3220729aa9114ae965a4d3d2a4037a88
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Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/447761
Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-09-08 07:56:13 -07:00
Alexander Markov 68382660c8 [vm,dyn_modules] Initial support for FFI calls in the interpreter
Limitations:
* Compounds (structs, unions, arrays) are not supported yet.
* Only x64 and arm64 are supported.

TEST=ci

Change-Id: I2929d514dc49015369d29dad31f479c661161655
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/446282
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2025-08-26 09:22:30 -07:00
Alexander Markov a3038b85f8 [vm,dyn_modules] Support pragmas on local functions in bytecode
Pragmas on local functions are used internally by FFI.

TEST=ci

Change-Id: I3ffb9984d8fcd943b22a98746faa915b2ce7c9fa
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Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/446121
Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-08-21 07:00:49 -07:00
Alexander Markov d1ee514e51 [vm,dyn_modules] Support expression evaluation using bytecode
TEST=ci

Change-Id: Ice338112c190349d91791300954e70f192e04f2d
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Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-08-12 06:45:33 -07:00
Alexander Markov 7ba8625ae0 [vm,dyn_modules] Normalize FutureOr types when reading bytecode
TEST=ci (language/nnbd/type_equality/futureOr_normalization_test)

Change-Id: If2a008150f2dac2c278c11c0aea0af7a010c9e80
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Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-08-07 06:52:45 -07:00
Alexander Markov 9f72f1034c [vm,dyn_modules] Support class modifiers in bytecode
TEST=ci

Change-Id: I521b27c793269dc6076b353f50e2cdaa629002e9
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Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-07-24 06:02:35 -07:00
Alexander Markov d4b40e9a55 [vm,dyn_modules] Load bytecode for hot reload in two steps
Postpone loading of Code and ConstantPool objects during hot reload
until ReloadPhase4CommitFinish in order to avoid creating
constants too early, before class table is switched to use new classes
(otherwise heap would contain a mix of objects with new and old
layouts).

TEST=ci (vm/cc/IsolateReload)

Change-Id: I602987d194c5eb00b2e2a0e070dcd7b50cea0212
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Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/441660
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-07-21 14:56:01 -07:00
Alexander Markov bbb5e731c3 [vm,dyn_modules] Initial support for hot reloading bytecode
TEST=ci

Change-Id: I879ff1c085ee06dda7836d01e2018d93e075f132
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Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/439803
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-07-15 09:29:41 -07:00
Alexander Markov 3e462c1343 [vm,dyn_modules] Support external/native methods in bytecode
TEST=ci

Change-Id: I2827c95f7b4d4bfa40239369d3675ef6adba4ab2
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Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2025-07-11 06:31:19 -07:00
Alexander Markov 76468a6297 [vm,dyn_modules] Support reading pragmas from bytecode
TEST=vm/cc/*

Change-Id: I561e23ebc758faea70c2eb72c08dc13b8326aee8
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Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2025-07-08 06:46:22 -07:00
Alexander Markov 0aaa86cd87 [vm,dyn_modules] Initial support for interpreter frames in debugger
Also, support reading local variables information from bytecode.

TEST=pkg/vm_service

Change-Id: Iab482316891f0e474af0011e9b1765c4e8312bc9
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Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-06-30 20:21:03 -07:00
Alexander Markov d2923b2818 [vm,dyn_modules] Do not share bytecode between field getter and field initializer
Profiler does not allow 2 distinct Bytecode objects to use the same
range of bytecode, as it needs to map PC to a Bytecode unambiguously.

So this change removes reuse of the field initializer bytecodes for
a field getter (in case of const fields).

TEST=pkg/vm_service/test/get_perfetto_cpu_samples_rpc_test

Change-Id: I758286f6f4fcfe2e2169bbc19ae233594e263522
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Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2025-06-26 08:16:39 -07:00
Alexander Markov 1164ea7f7e [vm,dyn_modules] Support collecting source positions for a script declared in bytecode
TEST=pkg/vm_service/

Change-Id: If9111373f4ddf08bded2a23ab4bb130f1f6ad4a4
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2025-06-26 08:08:20 -07:00
Alexander Markov f9860f9db9 [dyn_modules] Add source positions to bytecode
dart2bytecode can optionally add source position information
(including line starts) to the generated bytecode
(when '--bytecode-options=source-positions' flag is specified).

If bytecode has source positions, they are now shown in stack traces
involving interpreter frames.

TEST=ci

Change-Id: I1ae3326bac21201040be32c712514e71e96f51e2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/433760
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-06-10 12:15:25 -07:00
Alexander Markov 081211fd4d [vm,dyn_modules] Fix parameter names for closures declared in bytecode
TEST=existing (e.g. language/vm/regress_32502_test)

Change-Id: I2ea118aa34046a52c7c0d648e60f0d928c7702f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/428620
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2025-05-15 06:46:11 -07:00
Alexander Markov 18a44b3095 [vm, dynamic_modules] Support required named parameters in function types
TEST=language/nnbd/subtyping/function_type_required_params_test

Change-Id: I050f8fdd331985512f204b265d81c7deec0d67fe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/415640
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2025-03-18 14:50:45 -07:00
Alexander Markov 22b26e5a29 [vm, dynamic modules] Bugfixes in the bytecode reader and interpreter runtime
* Never unbox fields loaded from bytecode as interpreter works with
  boxed fields only.

* Ensure classes are allocate-finalized in AllocateObject
  runtime entry as interpreter may allocate instances of certain
  built-in classes (such as _Closure, _Double etc) without prior
  allocate-finalization.

* Fix type arguments vector in constant instances when class doesn't
  have type parameters but extends a generic class (so its instances
  have type arguments vector).

TEST=ci

Change-Id: I488287f84572a79ca7f1fddbd53aed1c3a038cea
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/412981
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2025-03-03 11:36:50 -08:00
Alexander Markov e200a3a722 [dart2bytecode] Avoid merging function types with different number of enclosing type parameters
When creating function types, VM takes number of parent function type
arguments into account. So function types with distinct number of
parent function type arguments should not be merged in the bytecode
object table and should be represented as distinct types.

TEST=language/mixin/type_parameter_inference_test
Fixes https://github.com/dart-lang/sdk/issues/59633

Change-Id: I9c8b0923c52b1b95628ff8daa3bbfa135c559912
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/398500
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2024-12-09 15:19:43 +00:00
Alexander Markov ef19c7e948 [vm] Throw error if library is already loaded when loading a dynamic module
TEST=DART_CONFIGURATION=DebugX64 out/DebugX64/dart-sdk/bin/dart pkg/dynamic_modules/test/runner/main.dart -r aot --verbose

Change-Id: I4a7e59e9bb6472fc615c2fc9d9af10bf03945adb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/384325
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2024-09-11 14:18:06 +00:00
Alexander Markov fcdcdeddad [dart2bytecode, vm] Adjust bytecode file format
* Switch UInt32 from big-endian to little-endian encoding.
* Reorder object kinds, constant tags, type tags and constant pool tags.
* Reorder field and function flags.
* Cleanup yield point marker from source positions.

TEST=ci

Change-Id: I05ee940b6393a478831af11ac93fee9ec1441c4e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/384040
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2024-09-10 13:37:29 +00:00
Alexander Markov a17bc048b4 [dart2bytecode, vm/interpreter] Late final fields and variables
* Also, add implicitly overridden _Enum._enumToString to dynamic
  interface.

TEST=ci (vm-aot-dyn-linux-debug-x64)

Change-Id: I9d9d368715d0837d8b1039a46451152e03be7eec
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/383024
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2024-09-04 14:18:09 +00:00
Alexander Markov 0ec691222d [dart2bytecode, vm/interpreter] Constructor tear-offs and more fixes
* Make dynamic module entry point fully compatible to script main
  function (allow taking optional parameters and up to 2 arguments).

* Fix reading of function types within generic members.

* Add crashing tests to status files to avoid generation of
  core dumps on the bots.

TEST=ci (vm-aot-dyn-linux-debug-x64)

Change-Id: Ibe8651ca13734101f2df2c8634f70ebf421dccef
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/382640
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2024-08-29 14:30:38 +00:00
Alexander Markov 2e63d3135a [dart2bytecode, vm/interpreter] Records
TEST=language tests in vm-aot-dyn-linux-debug-x64 configuration

Change-Id: I6dd7d5617f5c076c722304ab2a753159f22c0bf6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/382421
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2024-08-28 13:12:48 +00:00
Alexander Markov 9685ee28df [vm,dart2bytecode] Fix function types and local functions in bytecode
When reading function types from bytecode, number of implicit
parameters should be set in the FunctionType.

Capture variable holding a local function when local function
invocation happens from a different function scope.

Also remove debug prints from bytecode reader.

TEST=corelib/list_for_each_test
TEST=language/closure/closure6_test

Change-Id: I69c92ba2749509a24d13e8b2a10c5dea76973a56
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/381081
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
2024-08-19 13:09:31 +00:00
Alexander Markov 8fbca8ba67 [vm] Initial implementation of dynamic modules in the VM/AOT
TEST=Manually tested dynamic modules

Change-Id: Icb2616e414167bd1fbd10f01dea64c57dbdeeac7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/380281
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2024-08-15 14:09:52 +00:00