Commit Graph

17045 Commits

Author SHA1 Message Date
Jens Johansen afd43c4302 [VM] Mark all indirectly dependent code dirty on hot reload (2nd try)
The idea behind this is that the incremental compiler can now
(currently experimentally) recompile less if the outline didn't change.
This also mean that it can output less (e.g. only the changed library).
This change should make sure that the VM still invalidates everything
it needs to.

See also:
https://github.com/dart-lang/sdk/issues/34001
https://dart-review.googlesource.com/c/sdk/+/77722

This reverts commit 430506109d
(and fixed the issue).

Change-Id: I0815635eff6df76edf95de686aefd1800e0a8a0a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144824
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
2020-04-30 07:52:24 +00:00
Ryan Macnak 3388e5765b Revert "[vm, gc] Address data race when recycling TLABs."
This reverts commit 8241779d83.

Revert "[vm, gc] Divide new-space into pages like old-space."

This reverts commit 3495158ec9.

Revert "[vm, gc] Set the scavenger's forwarding bit to equal to the pointer tag bit."

This reverts commit 6e37605661.

Bug: b/155227688
Change-Id: I7e26bd86e188fb3658b82ba311a261468db96b78
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145444
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-29 19:47:24 +00:00
Martin Kustermann fa6cc57a32 Reland "[vm] Make VM support .dart_tool/package_config.json"
This CL makes the VM add support for .dart_tool/package_config.json via
  * the --packages=<file> command line parameter
  * the `packageConfig: <file>` parameter to `Isolate.spawnUri`

It also allows now `package:*` uris being used in `Isolate.spawnUri`

The CL also removes the unused `packageRoot` parameter from the Dart to
C++ interface as well as in various places in C++.

The CL also aligns the implementations between sdk and sdk_nnbd more.

Issue https://github.com/dart-lang/sdk/issues/41649
Issue https://github.com/dart-lang/sdk/issues/41245
Issue https://github.com/dart-lang/sdk/issues/41246

Change-Id: I0a7aa3040332abafa19bf80bdbd8a8f8594cc6fe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145462
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2020-04-29 19:05:26 +00:00
Ryan Macnak 8241779d83 [vm, gc] Address data race when recycling TLABs.
Fixes TSAN failures in vm/cc/ExerciseTLABs.

Change-Id: I7b319d7dcff3fa7d77f08177efb08a9db7bc533d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145310
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-29 16:26:04 +00:00
Ryan Macnak 77a496427d [vm] Speed up reload in debug mode by avoiding costly checks in ~HandleScope.
Change-Id: Ic8fd16444b510829490935e64cc9393eed519150
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145305
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-29 01:23:03 +00:00
Alexander Aprelev 334284a69b Revert "Reland "[vm] Make VM support .dart_tool/package_config.json""
This reverts commit 30085612f4 as it
broke vm-kernel-precomp-nnbd-linux-release-x64 bot.

Seems to be the same failure as the last time it was reverted: https://ci.chromium.org/p/dart/builders/ci.sandbox/vm-kernel-precomp-nnbd-linux-release-x64/537

Change-Id: I35a1897367bcb65f518b58659001280c5d5ed930
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145262
Reviewed-by: Alexander Aprelev <aam@google.com>
2020-04-28 23:23:44 +00:00
Alexander Markov 994f454996 [vm/nnbd] Call field initializer from stubs for late instance fields
This change introduces 2 new stubs, InitLateInstanceField and
InitLateFinalInstanceField. Those stubs call field initializer
directly without going to runtime.

Fixes the regressions on Uri.pathSegments.easy and Uri.pathSegments.hard.normalized
benchmarks with NNBD SDK after https://dart-review.googlesource.com/c/sdk/+/143189.

Change-Id: I6bde7a98010ac1321a95eda8b0f125105f3993c4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144807
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-04-28 21:35:23 +00:00
Ryan Macnak 3495158ec9 [vm, gc] Divide new-space into pages like old-space.
Will allow
 - merging heaps without first evacuating the donor's new-space
 - visiting new-space in parallel during marking

Change-Id: I6189281801cdafa4f9944ab5e7bb2153f964b18b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143080
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-04-28 20:25:32 +00:00
Vyacheslav Egorov 022f38a783 [vm/compiler] Fix operand encoding overflow in Drop on ARM64
It should use AddImmediate rather than raw add(...)

ARM already had correct implementation.

Fixes https://github.com/flutter/flutter/issues/55856

Change-Id: I7d06e5eab7eb5769cb0e1f198d45128d4f8f2f2d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145120
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
2020-04-28 19:40:37 +00:00
Ryan Macnak 6e37605661 [vm, gc] Set the scavenger's forwarding bit to equal to the pointer tag bit.
Makes some conversions no-ops.

Change-Id: I577475b1ec3ee9d4e79f3deb931b9d225053d447
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144805
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-28 19:32:32 +00:00
Alexander Markov 5ed0385777 [vm/nnbd] Fix A<dynamic> <: A<Object> subtyping in weak mode
In weak mode dynamic is a subtype of Object and
A<dynamic> is A<Object> should evaluate to true, as
LEGACY_SUBTYPE treats Object as legacy.

This change fixes language/constructor/constructor12_weak_test in weak mode.

Fixes https://github.com/dart-lang/sdk/issues/41642

Change-Id: Ie02888841a5cea9f6a8ccd38df504d6c938e58f1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144992
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2020-04-28 17:59:12 +00:00
Martin Kustermann 30085612f4 Reland "[vm] Make VM support .dart_tool/package_config.json"
This CL makes the VM add support for .dart_tool/package_config.json via
  * the --packages=<file> command line parameter
  * the `packageConfig: <file>` parameter to `Isolate.spawnUri`

It also allows now `package:*` uris being used in `Isolate.spawnUri`

The CL also removes the unused `packageRoot` parameter from the Dart to
C++ interface as well as in various places in C++.

The CL also aligns the implementations between sdk and sdk_nnbd more.

Issue https://github.com/dart-lang/sdk/issues/41649
Issue https://github.com/dart-lang/sdk/issues/41245
Issue https://github.com/dart-lang/sdk/issues/41246

Change-Id: Idec0990c731f34efda9c39672067eae9174319f1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144826
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-04-28 16:52:02 +00:00
Alexander Markov ee6855ff9a [vm/nnbd] Inline implicit getters of late fields
Inlining of implicit getters of late fields is enabled in call
specializer. In addition, this change enables CSE for InitInstanceField
instructions.

Fixes https://github.com/dart-lang/sdk/issues/40447

Change-Id: I58db86e7c20d4cfe943a2bb49dcee03c5963775b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144981
Reviewed-by: Liam Appelbe <liama@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2020-04-28 15:42:32 +00:00
Tess Strickland 430506109d Revert "[VM] Mark all indirectly dependent code dirty on hot reload"
This reverts commit 8e90d2b4d2.

Reason for revert: Causes test failures on reload/reload-rollback bots.

Original change's description:
> [VM] Mark all indirectly dependent code dirty on hot reload
> 
> The idea behind this is that the incremental compiler can now
> (currently experimentally) recompile less if the outline didn't change.
> This also mean that it can output less (e.g. only the changed library).
> This change should make sure that the VM still invalidates everything
> it needs to.
> 
> See also:
> https://github.com/dart-lang/sdk/issues/34001
> https://dart-review.googlesource.com/c/sdk/+/77722
> 
> Change-Id: I8d04bb86d2a27dd2706ec83f53fa98453eb41ce1
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144299
> Commit-Queue: Jens Johansen <jensj@google.com>
> Reviewed-by: Alexander Aprelev <aam@google.com>
> Reviewed-by: Ryan Macnak <rmacnak@google.com>

TBR=kustermann@google.com,aam@google.com,rmacnak@google.com,jensj@google.com

Change-Id: I5158447943c5dab18f4ed433f3709e6ee403606a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144822
Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2020-04-28 12:30:00 +00:00
Jens Johansen 8e90d2b4d2 [VM] Mark all indirectly dependent code dirty on hot reload
The idea behind this is that the incremental compiler can now
(currently experimentally) recompile less if the outline didn't change.
This also mean that it can output less (e.g. only the changed library).
This change should make sure that the VM still invalidates everything
it needs to.

See also:
https://github.com/dart-lang/sdk/issues/34001
https://dart-review.googlesource.com/c/sdk/+/77722

Change-Id: I8d04bb86d2a27dd2706ec83f53fa98453eb41ce1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144299
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-04-28 08:08:18 +00:00
Ryan Macnak 8c96812bec [vm, timeline] Remember block creation order instead of sorting in the endless recorder.
Reduces time, and more importantly auxiliary memory, to retrieve the timeline.

Change-Id: I0f87797f6d851d00cc5df0abaf5274693cb95752
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144810
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-27 23:42:36 +00:00
Alexander Aprelev ff807975b4 [vm/sendandexit] Ensure that sendAndExit message comes before exit message.
Change-Id: I17484b0381712fd570b3026a902835f027a371a0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144984
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
2020-04-27 22:58:56 +00:00
Ben Konyi c800b26816 [ VM / DartDev ] Make DartDev help message the default when running dart --help
Running the standalone VM in the following ways will result in the
DartDev help message being shown:

- `dart`
- `dart --help`

The following will output the VM help message:

- `dart run`
- `dart help run`
- `dart --help --verbose` (includes verbose VM flags)
- `dart help run --verbose` (includes verbose VM flags)
- `dart run --verbose` (includes verbose VM flags)

The original standalone VM behavior can be restored by providing the --disable_dart_dev flag.

Change-Id: I67cf015d62366efdfd8bf9b215d4319fd5af3f46
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144497
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Jaime Wren <jwren@google.com>
2020-04-27 22:39:06 +00:00
Stuart Morgan 028d37e39f Fix a dangling pointer in Windows CreateProcessW
The startup info structure includes a pointer to an array of IO handles;
this was made from the address of a local variable with a scope that
ended before the call to CreateProcessW, leading to undefined behavior.
In practice this appears to have mostly been working, but it reliably
fails under some build configurations of Flutter using clang.

This gives that array the same lifetime as the rest of the arguments to
CreateProcessW.

Change-Id: I3142353fd19004372a771e0cbaf0ed846ae73b5c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144520
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2020-04-27 22:29:07 +00:00
Ryan Macnak 3cb7eaa4cb Revert "[vm] Fix test to use Uri.file() instead of Uri.parse()"
This reverts commit 87ce4a504f.

Revert "[vm] Make VM support .dart_tool/package_config.json"

This reverts commit b112aa0d8b.

Reason for revert: Failures on Windows

Change-Id: I3e4f601d7638b25df313773e525c9284737fa729
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144985
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-27 21:55:46 +00:00
Ben Konyi b954584134 [ Service ] Fix status file expectations for service tests
Change-Id: Ic104b91a07bb9fc6be340f1827fb76ace9ad18d1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144803
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-04-27 21:32:56 +00:00
Robert Nystrom d9bb487ca8 Treat the expect and async_helper packages as opted in to NNBD.
This should enable strong mode tests to be fully NNBD opted in. At the
same time, legacy tests when run with the experiment off should
hopefully be able to still consume these libraries because they don't
actually use any NNBD features.

To do this, I changed the script that generates the SDK repo's package
config to not put in a language version for any package whose pubspec
has no SDK version. According to language versioning, that means the
package should be considered to be at the "current" version of the SDK
running the code.

In NNBD, that's opted in. With the experiment off, that is (presumably)
"opted out" in the sense that NNBD doesn't exist.

In order to *not* opt in some of the other packages that currently
lack SDK constraints, I put those in and pinned them to "^2.7.0" which
was what the package config script used to implicitly fill in for them.

I see a bunch of other changes in the generated package config too. The
update script probably hasn't been run in a while.

Change-Id: I55193d42eac0696a6b0105546551efa45a1f3252
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144305
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
2020-04-27 21:04:56 +00:00
Martin Kustermann b722bb123e [vm/compiler] Use a faster iteration over isolates in a group during GC
Issue https://github.com/dart-lang/sdk/issues/36097

Change-Id: I7bc638e5a6ab0dfd2031ce6c909e6a62f5bb1a48
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144298
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2020-04-27 17:25:48 +00:00
Martin Kustermann b112aa0d8b [vm] Make VM support .dart_tool/package_config.json
This CL makes the VM add support for .dart_tool/package_config.json via
  * the --packages=<file> command line parameter
  * the `packageConfig: <file>` parameter to `Isolate.spawnUri`

It also allows now `package:*` uris being used in `Isolate.spawnUri`

The CL also removes the unused `packageRoot` parameter from the Dart to
C++ interface as well as in various places in C++.

The CL also aligns the implementations between sdk and sdk_nnbd more.

Issue https://github.com/dart-lang/sdk/issues/41649
Issue https://github.com/dart-lang/sdk/issues/41245
Issue https://github.com/dart-lang/sdk/issues/41246

Change-Id: I642dfb89f82b3f2c1613e443850bf0b4fb91f4a1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144766
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-04-27 12:54:38 +00:00
Siva Annamalai 726d3c7725 Revert "[BUILD] - Initial CL to unfork the NNBD Dart SDK"
This reverts commit cab69e7706.

Reason for revert: It was a temporary submit

Original change's description:
> [BUILD] - Initial CL to unfork the NNBD Dart SDK
> NOTE: This is a trial submit and will be reverted immediately.
> 
> - Flips the flag from --nnbd to --no-nnbd so that by default it builds
>   the NNBD version
> - using the --no-nnbd flag results in the SDK being built in a
>   directory which has the 'Legacy' suffix added to it
>   (e.g: out/DebugX64Legacy)
> - the '--enable-experiment=non-nullable' flag still needs to be passed
>   in during execution so that CFE runs in that mode. This is different
>   from the 'null_safety' flag
> 
> Change-Id: I7d25d9710818af5919c0bb83abe51153172f5886
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144880
> Reviewed-by: Siva Annamalai <asiva@google.com>

TBR=asiva@google.com

Change-Id: Ib0f99fc1a42c9c7a8b21f8542f4a35dba9105d5c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144900
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2020-04-27 05:00:10 +00:00
asiva cab69e7706 [BUILD] - Initial CL to unfork the NNBD Dart SDK
NOTE: This is a trial submit and will be reverted immediately.

- Flips the flag from --nnbd to --no-nnbd so that by default it builds
  the NNBD version
- using the --no-nnbd flag results in the SDK being built in a
  directory which has the 'Legacy' suffix added to it
  (e.g: out/DebugX64Legacy)
- the '--enable-experiment=non-nullable' flag still needs to be passed
  in during execution so that CFE runs in that mode. This is different
  from the 'null_safety' flag

Change-Id: I7d25d9710818af5919c0bb83abe51153172f5886
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144880
Reviewed-by: Siva Annamalai <asiva@google.com>
2020-04-27 04:59:26 +00:00
Ryan Macnak 6fe15f6df9 [vm] Represent tagged pointers as C++ value types instead of C++ pointer types.
This works around bugs in UndefinedBehaviorSanitizer and Clang.

Bug: b/28638298
Change-Id: I6be595f9664516019d28017d24559583a1ae3a21
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144354
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-04-25 05:21:27 +00:00
Regis Crelier c99da6857f [VM/nnbd] Field initializers may allocate a context storing 'this' when needed.
This fixes these co19 tests in strong mode:
LanguageFeatures/nnbd/late_A05_t01
LanguageFeatures/nnbd/late_A05_t02

Change-Id: I90e9f91eec120d82992e835f79396c2a7770fcbc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144814
Commit-Queue: Régis Crelier <regis@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-04-25 01:12:17 +00:00
Liam Appelbe 216e3df452 [vm] Handle required params in bytecode mode
Change-Id: I9e6b62969012bf2e0d9fce6bfe894a2367f240c3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/138664
Commit-Queue: Liam Appelbe <liama@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-04-24 20:52:27 +00:00
Ben Konyi 43c2d2c6d2 Reland "[ DartDev ] Generate dartdev.dart.snapshot for runtime builds and place it in the root of the build output directory"
This reverts commit 60823bdaf6.

Change-Id: I10a8421cb1fc5738bfb56d3c4e68d05bb3b4edd9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144680
Reviewed-by: Jaime Wren <jwren@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2020-04-24 19:59:48 +00:00
Ben Konyi c97ed9cc11 [ package:dds / Service ] Add support for service extensions to DDS
With this change, DDS takes responsibility for service extension
registration via the service protocol in addition to handling service
extension request routing.

Service extensions registered through dart:developer will continue to
be handled by the VM service as those extensions live within the main
Dart process (this functionality already worked before this CL).

This change also includes a version bump for package:json_rpc_2 to pull
in a bug fix required for this change.

Change-Id: Idb6050058f7695d34276953be159419a5b1b9711
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144349
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-04-24 17:13:57 +00:00
Tess Strickland a69cb6d700 [vm] Walk Functions as well as Code objects in DedupInstructions.
Previously, we used the owner field to find the function whose entry
points to fix up after deduplicating instructions/code objects. However,
this means retrieving and checking the owning Function for each Code
object that has one, even if that Code object isn't the current code
object for the owning function. Instead, now we extend the instruction
deduplication visitors to Functions, where visiting a Function means
visiting its active Code object before fixing up the entry point cache.

Since the ProgramWalker also visits Code objects, this means visiting
some Code objects twice (once in the ProgramWalker and once when
visiting the Function for which it is the current code). However, since
the deduplication process is idempotent, the additional visits will not
cause the entry points for the Code object to change further (which
would otherwise invalidate the caches of already visited Functions).
Thus, the order of the visits does not affect the results.

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-product-x64-try
Change-Id: Idd12fc94c5fb98f1fc9eb669d09b47822b0eac1e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144700
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2020-04-24 11:49:43 +00:00
Martin Kustermann 0f28b1d30e [vm/gc] Hold new space lock while modifying top_ to prevent TSAN from reporting race
https://github.com/dart-lang/sdk/issues/41635

Change-Id: I3c3d79ac982d426e3cb9d7cdfeb92d664d607391
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144581
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2020-04-24 08:54:03 +00:00
Ben Konyi 36159acd2d [ Service / package:vm_service ] Document getClassList RPC, bump VM service version to 3.32, release package:vm_service 4.0.2
Change-Id: If8430f3e5866e40934e308aeff98e46e660b0f0d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144685
Reviewed-by: Devon Carew <devoncarew@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2020-04-23 22:05:52 +00:00
Ben Konyi 1f60f431e3 [ VM / Service ] Allow for dart:_* libraries to be set debuggable
Fixes https://github.com/dart-lang/sdk/issues/29813

Change-Id: I995177314dc92dcfc9f5850c68addb48c4e09f9d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144621
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-04-23 21:28:20 +00:00
Regis Crelier 157d567358 [VM/nnbd] Eliminate two VM crashes when running strong mode tests.
Using strong mode with a mix of opted in and opted out libraries may result in a static call with bad arguments (missing required named argument) that may crash the VM with an assert fault. Ideally, we should emit code to throw a NoSuchMethodError when the code is executed. For now, we report the error as an informative exception during compilation instead of aborting.

The name of the enclosing function needs to be canonical when creating an instance of _FallThroughError when compiling a switch statement.

Change-Id: I50349fcc5b5036fbdec4697238b1e840de15ec07
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144498
Commit-Queue: Régis Crelier <regis@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-04-23 19:04:05 +00:00
Leaf Petersen 721f7b4b3b Null safe dart:async optimizations.
Various optimizations to the null safe dart:async sdk to fix
performance regressions in dart2js.

Change-Id: I32c64b54be196ac18946ade45de6b352a20be832
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144302
Commit-Queue: Leaf Petersen <leafp@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
2020-04-23 18:56:00 +00:00
Ben Konyi 60823bdaf6 Revert "[ DartDev ] Generate dartdev.dart.snapshot for runtime builds and place it in the root of the build output directory"
This reverts commit 367ee916d6.

Reason for revert: Build failures

Original change's description:
> [ DartDev ] Generate dartdev.dart.snapshot for runtime builds and place it in the root of the build output directory
> 
> VM developers rarely run the create_sdk build as it's significantly
> slower than just building the VM. Since DartDev is coupled to the VM, we
> should build it to ensure that there's no snapshot errors due to old
> snapshots from previous create_sdk builds.
> 
> Change-Id: I7626e0f3c791f2a6e69830641d9abf043ec5138f
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144465
> Reviewed-by: Jaime Wren <jwren@google.com>
> Commit-Queue: Ben Konyi <bkonyi@google.com>

TBR=jwren@google.com,bkonyi@google.com,asiva@google.com

Change-Id: I36754f7830e637313a390218d16869a8528f75ff
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144622
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2020-04-23 17:28:20 +00:00
Ben Konyi 367ee916d6 [ DartDev ] Generate dartdev.dart.snapshot for runtime builds and place it in the root of the build output directory
VM developers rarely run the create_sdk build as it's significantly
slower than just building the VM. Since DartDev is coupled to the VM, we
should build it to ensure that there's no snapshot errors due to old
snapshots from previous create_sdk builds.

Change-Id: I7626e0f3c791f2a6e69830641d9abf043ec5138f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144465
Reviewed-by: Jaime Wren <jwren@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2020-04-23 16:47:09 +00:00
Tess Strickland 7db07dadd6 [vm] Only visit Code objects in the static call tables when necessary.
In most cases, Code objects in the static calls tables are reachable
through other means. Thus, only add the overhead of walking the static
calls tables when we are in precompiled mode and
--retain-function-objects is disabled.

Also, when deduplicating Instructions objects in Code objects, only
adjust the entry points for the owning function if the Code object is
the current code for that function.

Fixes https://github.com/dart-lang/sdk/issues/41619

Bug: 41619
Change-Id: I51621ccfe1d1c8402088a1c24c56e0a74a02e1ed
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144560
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-04-23 15:10:49 +00:00
Tess Strickland bd2ed4c68a [vm] Make the non-symbolic causal stacks tests no-ops on Android.
We don't copy the saved debugging info over to the Android device,
so these tests can't succeed.

Bug: https://github.com/dart-lang/sdk/issues/41578
Change-Id: Ife11e31862457e7c7dba1c38f15c8c7d22eda414
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-android-release-arm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144562
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2020-04-23 13:39:28 +00:00
Tess Strickland 2d865dc69b [vm] Fix non-symbolic stack traces with --lazy-async-stacks.
Symbolic and non-symbolic stack traces had separate ToCString
implementations with the same general structure, but those
implementations diverged enough to cause issues in certain async stack
modes. They are now merged, with the --dwarf-stack-traces-mode flag
checked where appropriate within the merged method.

Also, now non-symbolic stack traces do not include frames for Code with
invisible Function owners unless the flag --show-invisible-frames is
enabled. With this change, pkg/native_stack_traces no longer needs to
guess at which frames corresponding to Dart code should be treated as
internal.

Tested by adding --dwarf-stack-traces version of the tests
in runtime/tests/vm/dart/causal_stacks.

Fixes https://github.com/dart-lang/sdk/issues/41578

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try
Change-Id: I41a887129616c88acd7729492addf7364d95df33
Bug: 41578
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143816
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-04-23 09:31:08 +00:00
Alexander Markov 53860a5822 [vm/nnbd] Take Never type out of the VM isolate
Never type in the VM isolate causes bootstrapping problems when
null-safety mode is auto-detected. We cannot initialize its type
testing stub without knowing null-safety mode and we cannot patch it
after figuring out null-safety mode because VM isolate is read-only.

The solution is to move Never type (and Never class) out of the VM
isolate and make them per isolate.

Issue: https://github.com/dart-lang/sdk/issues/41206
Change-Id: Iede937aa5becd5f1f7b029db836c25a1b20fbc5c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144488
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2020-04-23 01:31:57 +00:00
Ryan Macnak cb32f0e9eb [vm] Remove change of return type in override of AbstractType::InstantiateFrom.
This override will become an error after switching tagged pointers from C++ pointers to C++ values.

Change-Id: Ic225c36bd5942cf00617053597d3a7aa95613b94
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144463
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-23 00:34:34 +00:00
Ben Konyi f9816cdc35 [ DDS / Service ] Put the VM service into single client mode when DDS connects
Added a private RPC, _yieldControlToDDS, which DDS invokes once
connected to the VM service. Once this method is called, the following
happens:

- The VM service stops accepting new web socket requests.
- The VM service enters single client mode, where DDS is the single
  client.

DDS can only place the VM service in single client mode when it is the only
VM service client. If other clients are connected, DDS will fail to start and
throw an exception.

The purpose of this change is to simplify state management between the
VM service and DDS. The plan is to delegate the following features to
DDS:

- Service extension management
- Custom client name support
- Isolate resume coordination for multiple clients

Change-Id: I0b3143710d94ee9444a4894e24555f7ed1caf5ad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142564
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-04-22 22:03:59 +00:00
Alexander Aprelev f885845343 [vm/sendandexit] Keep beneficiary before releasing bequest.
This is follow-up to https://dart.googlesource.com/sdk/+/17654b70d720917cfd3c222dba85e21ac67a2353.

Change-Id: I9bac32fd5e1f4b4fbc363763b887614f67462939
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144482
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
2020-04-22 18:34:29 +00:00
Alexander Aprelev 17654b70d7 [vm/isolates] Introduce sendAndExit.
sendAndExit allows for fast data passing from worker isolate back to
parent.

```
                                              | linux x64  | spawnIsolate | sendAndExit |
                                              |us per iter | over sync    | over send   |
                                              +------------+--------------+-------------+
IsolateJson.Decode50KBx1(RunTime):               43,175.000   339.83%
IsolateJson.SendAndExit_Decode50KBx1(RunTime):   22,070.000   124.83%        -48.88%
IsolateJson.SyncDecode50KBx1(RunTime):            9,816.284

IsolateJson.Decode50KBx4(RunTime):               77,630.000   104.56%
IsolateJson.SendAndExit_Decode50KBx4(RunTime):   46,307.000   22.02%         -40.35%
IsolateJson.SyncDecode50KBx4(RunTime):           37,949.528

IsolateJson.Decode100KBx1(RunTime):              71,035.000   270.42%
IsolateJson.SendAndExit_Decode100KBx1(RunTime):  43,056.000   124.52%        -39.39%
IsolateJson.SyncDecode100KBx1(RunTime):          19,176.733

IsolateJson.Decode100KBx4(RunTime):             120,915.000   54.66%
IsolateJson.SendAndExit_Decode100KBx4(RunTime):  67,101.000  -14.17%         -44.51%
IsolateJson.SyncDecode100KBx4(RunTime):          78,179.731

IsolateJson.Decode250KBx1(RunTime):             173,574.000  202.52%
IsolateJson.SendAndExit_Decode250KBx1(RunTime): 103,334.000   80.10%         -40.47%
IsolateJson.SyncDecode250KBx1(RunTime):          57,375.314

IsolateJson.Decode250KBx4(RunTime):             292,118.000   20.30%
IsolateJson.SendAndExit_Decode250KBx4(RunTime): 168,444.000  -30.63%         -42.34%
IsolateJson.SyncDecode250KBx4(RunTime):         242,831.000

IsolateJson.Decode1MBx1(RunTime):               631,578.000  166.34%
IsolateJson.SendAndExit_Decode1MBx1(RunTime):   371,127.000   56.50%         -41.24%
IsolateJson.SyncDecode1MBx1(RunTime):           237,135.778

IsolateJson.Decode1MBx4(RunTime):             1,322,789.000   36.16%
IsolateJson.SendAndExit_Decode1MBx4(RunTime):   657,179.000  -32.35%         -50.32%
IsolateJson.SyncDecode1MBx4(RunTime):           971,473.333

```

Bug: https://github.com/dart-lang/sdk/issues/37835
Bug: https://github.com/dart-lang/sdk/issues/36097
Change-Id: I386641e1431ed9f2e34fac36f562607a666ee4a8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142823
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-04-22 17:34:09 +00:00
Martin Kustermann 25011b80b9 [vm/compiler] Keep one ReversePcLookupCache on the isolate group (instead of making one per-isolate)
There is no need to make each isolate have it's own PC -> RawCode lookup
table, now that we share the program structure.

Issue https://github.com/dart-lang/sdk/issues/36097

Change-Id: Iba2bbf7e735655b52c07a61c399c6d2409598145
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144297
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2020-04-22 09:21:48 +00:00
Ryan Macnak 160046f44c [vm] Move CID predicates out of RawObject.
When using C++ value types to represent tagged pointers, we cannot use forward declarations for tagged pointers. This helps to break include cycles when attempting to keep IsXYZ predicates as tagged pointer member functions.

class_id.h also seems like a more natural place for these predicates, which were written before there was a class_id.h.

Change-Id: I0677560a794ed084d10f844606e202feb0c3820a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144321
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-21 20:09:55 +00:00
Filip Filmar 595cd384d3 Add dart::ComponentContext() for Fuchsia
This allows the program to get at the singleton component context
for the currently running component.  The component context can
be meaningfully instantiated only once; and since dart doesn't
have a predefined way to wire platform-specific values into
platform-specific code, we instantiate a singleton here, so all
code that is interested can use it.

The users of this functionality will be the dart and flutter
fuchsia runners.  See issue
https://github.com/dart-lang/sdk/issues/41523 for details.

Tested:
  manual compile for fuchsia, check behavior.

Change-Id: Ib4e15af376ecb932c2d2b28d6f099383d53ccc84
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/136524
Commit-Queue: Filip Filmar <fmil@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-04-21 19:09:25 +00:00