Work towards https://github.com/flutter/flutter/issues/46724
Background:
on the latest versions of iOS today, we have to use mdns to discover the observatory port and authentication code. For a variety of reasons this can fail, leaving us with no way to connect.
An alternative approach is to specify the observatory port and disable the authentication code. If binding to this port fails, however, we would still like to attempt connecting with mdns.
Overview:
This adds a new flag to the dart SDK, --enable-service-port-fallback. This amends the behavior of the vmservice with a specified port. After failing to bind 3 times to a non-zero port, update the port selection to 0.
Results:
Tested locally two dart VMs with the same specified port:
```
jonahwilliams@jonahwilliams0:~/Documents/engine/src/out/host_debug_unopt$ ./dart --enable-service-port-fallback --observe=8080 example.dart
Observatory server failed to start after 1 tries
Falling back to automatic port selection
vm-service: isolate(2785434094928835) 'main' has no debugger attached and is paused at exit. Connect to Observatory to debug.
Observatory listening on http://127.0.0.1:45663/62A5IHjmv9E=/
```
Change-Id: I582ab402a457330928e5b490f9718fcd52b56720
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/133434
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Jonah Williams <jonahwilliams@google.com>
This reverts commit 6ff7e9ebad.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> [vmservice] allow fallback on port bind failure
>
> Work towards https://github.com/flutter/flutter/issues/46724
>
> Background:
>
> on the latest versions of iOS today, we have to use mdns to discover the observatory port and authentication code. For a variety of reasons this can fail, leaving us with no way to connect.
>
> An alternative approach is to specify the observatory port and disable the authentication code. If binding to this port fails, however, we would still like to attempt connecting with mdns.
>
> Overview:
>
> This adds a new flag to the dart SDK, --enable-service-port-fallback. This amends the behavior of the vmservice with a specified port. After failing to bind once to a non-zero port, update the port selection to 0.
>
> Results:
>
> Tested locally two dart VMs with the same specified port:
>
> ```
> jonahwilliams@jonahwilliams0:~/Documents/engine/src/out/host_debug_unopt$ ./dart --enable-service-port-fallback --observe=8080 example.dart
> Observatory server failed to start after 1 tries
> Falling back to automatic port selection
> vm-service: isolate(2785434094928835) 'main' has no debugger attached and is paused at exit. Connect to Observatory to debug.
> Observatory listening on http://127.0.0.1:45663/62A5IHjmv9E=/
> ```
>
> Change-Id: I371583edcb603325428f1cb760992e39b9f3b6dc
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/130441
> Commit-Queue: Jonah Williams <jonahwilliams@google.com>
> Reviewed-by: Ben Konyi <bkonyi@google.com>
TBR=bkonyi@google.com,jonahwilliams@google.com
Change-Id: I337b2d549e33ef9c616c276a48ce894a14b1c317
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/133327
Reviewed-by: Jonah Williams <jonahwilliams@google.com>
Commit-Queue: Jonah Williams <jonahwilliams@google.com>
Work towards https://github.com/flutter/flutter/issues/46724
Background:
on the latest versions of iOS today, we have to use mdns to discover the observatory port and authentication code. For a variety of reasons this can fail, leaving us with no way to connect.
An alternative approach is to specify the observatory port and disable the authentication code. If binding to this port fails, however, we would still like to attempt connecting with mdns.
Overview:
This adds a new flag to the dart SDK, --enable-service-port-fallback. This amends the behavior of the vmservice with a specified port. After failing to bind once to a non-zero port, update the port selection to 0.
Results:
Tested locally two dart VMs with the same specified port:
```
jonahwilliams@jonahwilliams0:~/Documents/engine/src/out/host_debug_unopt$ ./dart --enable-service-port-fallback --observe=8080 example.dart
Observatory server failed to start after 1 tries
Falling back to automatic port selection
vm-service: isolate(2785434094928835) 'main' has no debugger attached and is paused at exit. Connect to Observatory to debug.
Observatory listening on http://127.0.0.1:45663/62A5IHjmv9E=/
```
Change-Id: I371583edcb603325428f1cb760992e39b9f3b6dc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/130441
Commit-Queue: Jonah Williams <jonahwilliams@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Change some static_libraries to source_sets to make ODR violations link-time errors.
This is needed to enable (stop suppressing) -fvisibility=hidden in Fuchsia product builds.
Change-Id: I699cec8d4b516beab9cebf9db0a522a7ff99e004
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99822
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
To support this, we need to download the current version during gclient
sync, and change the way the --use-abi-version flag is processed so that
there's a distinction between the current version and the flag being
unset (-1). Also bump the oldest supported ABI version.
Bug: https://github.com/dart-lang/sdk/issues/36047
Change-Id: If3fb5e1ba1ebddf11e9f0a9a7c42b7bb0b820ad8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98609
Commit-Queue: Liam Appelbe <liama@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
- option --no-preview-dart-2 will now result in an error
- change aot-assembly build rule to generate AOT snapshot using Dart 2
- generate coresnapshot using Dart 2 (this snapshot is not used yet, next CL which switch the isolate create code to use this snapshot)
- by pass all Dart1 test runs in the status file
- change the default compiler setting in test.py to use dartk
- have test.py not pick up any configuration for --no-preview-dart-2
Change-Id: Ia136943ebfd0fed0c52683b330745b3e2c7a7ce6
Reviewed-on: https://dart-review.googlesource.com/75820
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
Currently, the VM can create depfiles when writing out a snapshot.
The snapshot file is the output file for the depfile. This change
allows creating a depfile when not writing out a snapshot. It
accomplishes this by adding a new flag --depfile_output_filename,
which allows the user to supply the output filename for the depfile,
which would otherwise be ambiguous when we are not creating a snapshot.
This change also adds the flag --depfile, which
--snapshot_depfile is now an alias of.
related #34026
Change-Id: I45eee463c499fc542e577d805b7ef9911ccb72a7
Reviewed-on: https://dart-review.googlesource.com/67420
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
server is started.
When the incremental compiler is used it accumulates state that
increases the footprint of the process. This state is needed only
when the 'reload' or 'expression evaluation' functionality is used
in the debugger.
Currently in the VM we do not have a good way of detecting when the
debugger will be used as the vm service observatory functionality
can be turned on dynamically after the program has started.
This CL turns on the incremental compiler only when command line options
are used to start the observatory server. We could run into issues with
'expression evaluation' when the observatory is started dynamically after
the program is loaded.
Change-Id: I18c17698622071bca428018f7fdac1a84b0f195e
Reviewed-on: https://dart-review.googlesource.com/64667
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
- Add --preview-dart-2 option back as a nop
- Temporarily treat --checked as an alias for --enable-asserts in Dart2
mode so that google3 test scripts don't need to change.
Change-Id: I3a7d9f9e73d86bc8db247dfcb4e84440258949f6
Reviewed-on: https://dart-review.googlesource.com/62445
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Keerti Parthasarathy <keertip@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
- make Dart2 the default option for the command line VM
- add option --no-preview-dart-2 as a fallback option to run dart1
- change test scripts to use the executable dart for testing dart2 mode instead of
pkg/vm/tool/dart2
- adjust numerous build and test configurations
Change-Id: Id813fa5b71a89c7ec9335d3f6e83cfc9f35f86e7
Reviewed-on: https://dart-review.googlesource.com/58240
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: Nate Bosch <nbosch@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
Leave some observatory tests to run in --no-sync-async modes as
changing these tests now would make them fail if somebody tries to run
them with the --no-sync-async flag. We can modify these tests once we do
not have a way to revert this flag.
Change-Id: I4a888448c3ed7a89ebc1d187f2ca11f1d620d7df
Reviewed-on: https://dart-review.googlesource.com/54632
Reviewed-by: Zach Anderson <zra@google.com>
'--snapshot_kind=script --snapshot=xyz'
produce a kernel dill file which is the equivalent of a script
snapshot in Dart2 world.
Change-Id: I7ba66eb86d9ecdfe1426b8b22b8d673598c4b71f
Reviewed-on: https://dart-review.googlesource.com/52740
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
The isolate creation callback flow was using DFE::kernel_file_specified()
to decide whether to load kernel program or not. However, since this flag
is not isolate specific, it was causing problems in the case where a dill
file was passed as the main dart program; the other isolates, even if
they were loading a snapshot, were looking for a kernel program.
This change was originally submitted as
"Make the decision, on whether to start the kernel isolate, liberal." It
was reverted due to failures on simdbc bots. This change is another
attempt which fixes those failures.
Change-Id: I096445faf470e77ab8f7cc810082891dcede5b60
Reviewed-on: https://dart-review.googlesource.com/36125
Commit-Queue: Siva Chandra <sivachandra@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
This reverts commit 8986a85426.
Reason for revert: This broke our sim* builders, for example:
python tools/test.py -mdebug -c dartk -a simdbc64 service/next_through_assign_int_test
...
../../runtime/bin/main.cc: 202: error: expected: kernel_program != NULL
...
Unfortunately our sim* builders don't send out emails to authors because
they were setup with the new LUCI infrastructure. This causes failures
like this to not get noticed in time.
Change-Id: I759da4ce93817135cc5ffb6e1e6f374723e0e6d8
Reviewed-on: https://dart-review.googlesource.com/35927
Reviewed-by: Martin Kustermann <kustermann@google.com>
This linked in kernel service dill file will be used to load the kernel
isolate if the attempt to lookup the kernel service snapshot fails. The
kernel service snapshot is looked up in the following order.
1. If the "--dfe" option is specified, the file specified is used.
2. If the kernel service snapshot is found next to the executable,
then it is used.
3. If the kernel service snapshot is found in the "snapshots" directory
next to the executable, then it is used.
Change-Id: I5a0e757eb27b26a274b22b4bc36350fee59a100f
Reviewed-on: https://dart-review.googlesource.com/32446
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Chandra <sivachandra@google.com>
This change does a couple things:
- When there is a non-default namespace, on Linux, Android, and Fuchsia
the current working directory is per-Isolate.
- On Fuchsia, it caches the fd from fdio_ns_t instead of recomputing it
on every fs access.
Change-Id: I3735330884de51ca853a17d66dcfcfa984b9a041
Reviewed-on: https://dart-review.googlesource.com/9367
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
jonahwilliams