Commit Graph

13143 Commits

Author SHA1 Message Date
asiva 170d047b20 The rolls of Dart into Flutter have been failing for more than a day now.
We have accumulated almost 69 commits. Please see issue
https://github.com/dart-lang/sdk/issues/41739
for details of why these CLs had to be reverted.

Revert "Reland "[vm] Make VM support .dart_tool/package_config.json""
This reverts commit fa6cc57a32.

Revert "[VM] - Fix hang when no package config or .packages exist"
This reverts commit 31be795457.

Revert "[vm/isolate] Make Isolate.resolveUri() work for both `.packages` and `dart_tool/package_config.json`"
This reverts commit a99f7aef6e.

Revert "[vm] Skip (newly enabled) isolate tests on simarm* and hot-reload configs"
This reverts commit 7082e99c28.

Revert "[vm] Remove ../0 postfix from status file entries (test framework does not recognize those multitests)"
This reverts commit 708468684a.

Change-Id: Id6b951bde4f379fdcfac3cc23e0057a77a7e6db0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/146041
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2020-05-01 22:11:55 +00:00
Tess Strickland e0d722cf7b [vm/aot] Align virtual addresses in the snapshot and debug info.
Change-Id: I930fbed3f45f45c0fc63dfaecfd36a9f97368efb
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145588
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2020-05-01 07:06:34 +00:00
asiva c740bbc161 [VM] Set up Isolate specific null safety mode
- change the null_safety flag to be a tri state flag (unspecified, no
  null safety and null safety)
- added logic to set the null safety mode of an isolate based on the
  value specified in the kernel file (.dill file) if the null safety
  flag is not specified on the command line
- added logic to auto detect the null safety mode based on the language
  version API provided by CFE
- added logic to pass the correct null safety option to CFE when
  invoking it for compilation based on the null-safety flag setting
- Delete non-nullable-flag() function and adjust code that was using it.
- Remove 'nnbd-experiment' from the snapshot string.

https://github.com/dart-lang/sdk/issues/41206
https://github.com/dart-lang/sdk/issues/41207

Change-Id: I006bf3c9229980fc7986faac6a5850d3722aec92
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143160
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-05-01 04:03:04 +00:00
Ben Konyi af5f54569c Reland "[ package:dds / Service ] Added support for client naming and resume permissions"
This reverts commit e572bed03e.

Change-Id: I8d8c364e22f7e31c172ea871b2eac3b29fd3577b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145702
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2020-05-01 02:09:07 +00:00
Ryan Macnak 1483df9ff5 Reland "[vm, gc] Divide new-space into pages like old-space."
Bug: b/155227688
Change-Id: I3f7bb5eaf090622749869f405efd19674c6d74d6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145640
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-05-01 02:01:27 +00:00
Filip Filmar d2e4a3c991 Adds inspect to vm/os_fuchsia.cc
This will allow introspection of the state of tzdata loader, making
error diagnostics easier on Fuchsia.

Must be merged only after this pull request is merged into flutter
https://github.com/flutter/engine/pull/17876
Otherwise, the call to the `dart::ComponentContext()` could prevent
the runners from initializing the component context correctly.

Tested:
  Compiled and deployed on a Fuchsia device.
  The result on Fuchsia is as seen below.

```
$ fx iquery
/hub/c/flutter_jit_product_runner.cmx/21608/out/diagnostics:
  /hub/c/flutter_jit_product_runner.cmx/21608/out/diagnostics#os:
    dst_status = 0
    tz_data_close_status = 0
    tz_data_status = 0
```

See issue https://github.com/dart-lang/sdk/issues/41525 for details.

Bug: fuchsia:43341
Change-Id: I43ea289003e1e1d09cca4163236bc477eb9cee80
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144480
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Filip Filmar <fmil@google.com>
2020-04-30 23:16:46 +00:00
Ben Konyi e572bed03e Revert "[ package:dds / Service ] Added support for client naming and resume permissions"
This reverts commit bb959fc0de.

Reason for revert: Failing tests

Original change's description:
> [ package:dds / Service ] Added support for client naming and resume permissions
> 
> Also marked `getClientName`, `setClientName`,
> `requirePermissionToResume` and `ClientName` as deprecated in the VM
> service specification as these features will be moving to DDS and will
> be removed in VM service protocol 4.0.
> 
> Change-Id: I4628ece96349a9883ee9d726d82e5cfae028a826
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144986
> Reviewed-by: Ryan Macnak <rmacnak@google.com>
> Commit-Queue: Ben Konyi <bkonyi@google.com>

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

Change-Id: I4e56cd93ad1eeefe69cd632dc798324271274dd7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145662
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2020-04-30 20:51:46 +00:00
Ben Konyi bb959fc0de [ package:dds / Service ] Added support for client naming and resume permissions
Also marked `getClientName`, `setClientName`,
`requirePermissionToResume` and `ClientName` as deprecated in the VM
service specification as these features will be moving to DDS and will
be removed in VM service protocol 4.0.

Change-Id: I4628ece96349a9883ee9d726d82e5cfae028a826
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144986
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2020-04-30 20:00:22 +00:00
Alexander Markov 8d16dbb17f [vm/nnbd] Revise IsTopType* predicates
IsTopTypeForAssignability is renamed to IsTopTypeForSubtyping to better
reflect that it works both for subtyping and assignability.

Most uses of IsTopType() are changed to IsTopTypeForSubtyping().

The remaining uses of IsTopType() are checking for top types in
instance-of ('is') tests, so IsTopType is renamed to IsTopTypeForInstanceOf.

Also, Instance::IsFutureOrInstanceOf is renamed to RuntimeTypeIsSubtypeOfFutureOr
to align it with RuntimeTypeIsSubtypeOf and reflect that it is
calculating subtyping and not instance-of.

Change-Id: Ib8d3574edc1b90d80f5528330bd84b099b37d2b8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145446
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2020-04-30 19:35:32 +00:00
Ryan Macnak 01ecc4a1a0 [vm] Appease TSAN around access on native resolvers.
Bug: https://github.com/dart-lang/sdk/issues/39611
Change-Id: I1ac3dd76313b72974ae938e0df4c004f24103691
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145566
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-04-30 16:45:04 +00:00
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
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
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
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
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 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
Martin Kustermann b53ea77e6b [vm/gc] Take new space lock when donating TLABs after scavenge, avoid leaks with double Dart_Initialize
This is a follow-up to [0] and fixes TSAN.
This is a follow-up to [1] and fixes ASAN (restored old code with comment)

[0] https://dart-review.googlesource.com/c/sdk/+/143817
[1] https://dart-review.googlesource.com/c/sdk/+/144260

Change-Id: I30cf8409e742785a923b6e48ffb050fff1c808c9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144295
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Auto-Submit: Martin Kustermann <kustermann@google.com>
2020-04-21 16:57:24 +00:00