Commit Graph

169 Commits

Author SHA1 Message Date
Ryan Macnak d6373525f7 [standalone] Remove dead Dart 1 loading code.
Change-Id: I5551a40819b1e011cf50fe0dc38c74fe45f81160
Reviewed-on: https://dart-review.googlesource.com/c/85841
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2018-12-04 17:17:25 +00:00
Ryan Macnak 2f25dcda16 [vm] Remove script snapshots.
Change-Id: I5bc692b754c0909de4aa5f05af81b074578b16f4
Reviewed-on: https://dart-review.googlesource.com/76706
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2018-09-26 22:49:27 +00:00
Zach Anderson 27c79f9459 [vm] Propagate more UTF8 conversion errors
Change-Id: I8d4f3a892a51bed8b922961bd74bcad727f66508
Reviewed-on: https://dart-review.googlesource.com/73280
Commit-Queue: Zach Anderson <zra@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2018-09-06 02:23:21 +00:00
Alexander Aprelev 41e720b486 [vm] Add support for a new source file format kernel file lists.
Given a source file that starts with '#@dill' on a new line, then if the rest of the lines are full paths to the kernel dill files, all kernel dill files will be loaded and executed as single program.

So, for example, given `mytest.dillref` with following content:
```
/projects/mytest/build/bin/main.vm.dill
/projects/mytest/build/packages/mytest/lib.vm.dill
```

invocation of `dart mytest.dillref` will result in loading two dill files and starting combined app.

Bug: dartbug.com/33952
Change-Id: I22a99ec9a018da1bc984bc0d716af94bc10e20d6

Add few tests

Change-Id: I22a99ec9a018da1bc984bc0d716af94bc10e20d6
Reviewed-on: https://dart-review.googlesource.com/67460
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2018-08-21 22:12:54 +00:00
Vyacheslav Egorov c910738825 [vm/embedder] Introduce dart_standalone_embedder_api.h
This enables other emdedders to reuse parts of the standalone embedder
implementation without depending too much on the implementations details.

As part of the change we also remove a dependency from DartUtils on
IsolateData - by removing dart:_builtin library caching. Lookup
of this library does not seem to be on hot path anymore in Kernel world.

Change-Id: Ia35b28886121828fad7a96f00bcbceff75e00ae8
Reviewed-on: https://dart-review.googlesource.com/64848
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2018-07-17 09:04:05 +00:00
Alexander Markov c3b5939965 [vm] Remove --limit-ints-to-64-bits option and old _Bigint class
Closes https://github.com/dart-lang/sdk/issues/33306

Change-Id: I7088d8b7143edbe24f5cefe4be037ad2006e0625
Reviewed-on: https://dart-review.googlesource.com/58101
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2018-06-04 20:10:40 +00:00
Ben Konyi 3ab7cf0590 Revert "[dart:io] Revert recent non-utf8 path handling"
This reverts commit 42bcdcd332.

Change-Id: I11fb7db2aac3b7dc15cb35a22fea38b31069cbc0
Reviewed-on: https://dart-review.googlesource.com/55502
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2018-05-23 21:01:44 +00:00
Zach Anderson 42bcdcd332 [dart:io] Revert recent non-utf8 path handling
Reason for revert: Breaking API change blocks Flutter rolls. Reverting
to reconsider, work around, etc..

Revert "[ VM ] Fixed issue where backing array was deleted from an ExternalTypedData before the ExternalTypedData was used."

This reverts commit 916b9da48d.

Revert "[ VM ] Fixed tests for non-UTF8 paths on Windows / Macos."

This reverts commit 6327fe91c2.

Revert "[ VM ] Fix failing tests on Windows bots after non-UTF-8 paths change."

This reverts commit b51f4b7956.

Revert "[ VM ] Updated non-UTF-8 tests to expect exceptions on OSX/iOS."

This reverts commit bcb36247d2.

Revert "Revert "[ VM ] Updated non-UTF-8 tests to expect exceptions on OSX/iOS.""

This reverts commit 24450c79a5.

Change-Id: I756f74f4acdde168d0984fe130f05f9252366334
Reviewed-on: https://dart-review.googlesource.com/55441
Reviewed-by: Todd Volkert <tvolkert@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
2018-05-16 15:47:10 +00:00
Ben Konyi 916b9da48d [ VM ] Fixed issue where backing array was deleted from an ExternalTypedData before the ExternalTypedData was used.
Reland "Fix issues with FileSystemEntities which have non-UTF8 paths causing exceptions to be thrown when converting to/from a Dart VM String."

This reverts commit 4f549e2900.

Change-Id: Ia27c8c300beb178fa7b08ffe0bfcb2d61f65bbb5
Reviewed-on: https://dart-review.googlesource.com/55271
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2018-05-15 21:54:46 +00:00
Ben Konyi 4f549e2900 Revert "Fix issues with FileSystemEntities which have non-UTF8 paths causing exceptions to be thrown when converting to/from a Dart VM String."
This reverts commit ba342a94ec.

Reason for revert: Bots are red.

Original change's description:
> Fix issues with FileSystemEntities which have non-UTF8 paths causing exceptions to be thrown when converting to/from a Dart VM String.
> 
> Continuation of PR #32583 by powdercloud
> 
> Fixes #29451
> 
> Change-Id: I4bdf24f9c8ead425a4f0cad33b642908f1ec203d
> Reviewed-on: https://dart-review.googlesource.com/51580
> Commit-Queue: Ben Konyi <bkonyi@google.com>
> Reviewed-by: Zach Anderson <zra@google.com>

TBR=bkonyi@google.com,rmacnak@google.com,zra@google.com,tvolkert@google.com

Change-Id: I12850f178a13a75289d18af4e565bd73c59b14ad
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/55060
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2018-05-14 23:40:29 +00:00
Ben Konyi ba342a94ec Fix issues with FileSystemEntities which have non-UTF8 paths causing exceptions to be thrown when converting to/from a Dart VM String.
Continuation of PR #32583 by powdercloud

Fixes #29451

Change-Id: I4bdf24f9c8ead425a4f0cad33b642908f1ec203d
Reviewed-on: https://dart-review.googlesource.com/51580
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
2018-05-14 23:06:57 +00:00
Ryan Macnak a5c11d7d03 [vm] Remove Dart_ReadKernelBinary, take 2.
Update status for simulators, which the test harness invokes with DIL files instead of source files.

Change-Id: I8444ad7e17a0a71a1ce3c0021487397baa1c3e65
Reviewed-on: https://dart-review.googlesource.com/54622
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
2018-05-14 20:58:08 +00:00
Ryan Macnak 407872b9e5 Revert "[vm] Remove Dart_ReadKernelBinary."
This reverts commit 2998c32951.

Reason for revert: Failures with kernel + simulators

Original change's description:
> [vm] Remove Dart_ReadKernelBinary.
> 
>  - Fix const-ness of Dart_FileReadCallback and callers.
>  - Fix leak on read error in DartUtils::FileRead.
> 
> This is progress towards sharing kernel memory on Fuchsia.
> 
> Bug: https://github.com/dart-lang/sdk/issues/32618
> Change-Id: I47f8b224905d6a105a5ca0ab2ee4ab6a42b5e342
> Reviewed-on: https://dart-review.googlesource.com/47102
> Commit-Queue: Ryan Macnak <rmacnak@google.com>
> Reviewed-by: Siva Annamalai <asiva@google.com>

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

Change-Id: Ibb636b817de1629a062fe0a6ef9462a2fef669ef
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/32618
Reviewed-on: https://dart-review.googlesource.com/54560
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2018-05-10 01:36:39 +00:00
Ryan Macnak 2998c32951 [vm] Remove Dart_ReadKernelBinary.
- Fix const-ness of Dart_FileReadCallback and callers.
 - Fix leak on read error in DartUtils::FileRead.

This is progress towards sharing kernel memory on Fuchsia.

Bug: https://github.com/dart-lang/sdk/issues/32618
Change-Id: I47f8b224905d6a105a5ca0ab2ee4ab6a42b5e342
Reviewed-on: https://dart-review.googlesource.com/47102
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2018-05-10 00:35:37 +00:00
Ryan Macnak 3989d09c95 [vm] Move writing snapshot magic value from embedder to VM.
Add Dart_IsSnapshot and Dart_IsKernel to the embedding API.

Change-Id: I7d4e1d145557e8f11dbc3c143767ad38b3615a4a
Reviewed-on: https://dart-review.googlesource.com/46360
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2018-03-19 17:47:55 +00:00
Alexander Aprelev 99e8f560af Revert "Revert "Reintroduce incremental compiler wrapper that supports accept protocol.""
This reverts commit 2d4c606e63.

The fix for the debug buildbot breakage now consists of skipping wide to utf8 conversion
altogether, instead move uri to path conversion directly into newly added File::OpenUri method.

Change-Id: Id3d7457d6a6b5045e5f38678548f4d7bed6d2c43
Reviewed-on: https://dart-review.googlesource.com/39801
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
2018-02-07 20:58:51 +00:00
Zachary Anderson 9c40a7e662 Reland: [dart:cli] Adds waitFor(Future)
This is a reland of https://dart-review.googlesource.com/#/c/sdk/+/28920/
with the following changes:
- It creates a new library dart:cli
- waitFor(Future) goes in dart:cli instead of dart:io
- Removes a flaky test, and adds a missing precompiler entrypoint
- Adds waitFor(Future)
- Improves doc comments

fixes #31102

Change-Id: I04d2c46fd0afac049dd4fd1353905dc20da18f90
Reviewed-on: https://dart-review.googlesource.com/29449
Commit-Queue: Zach Anderson <zra@google.com>
Reviewed-by: Natalie Weizenbaum <nweiz@google.com>
Reviewed-by: Keerti Parthasarathy <keertip@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2018-01-18 16:38:54 +00:00
Martin Kustermann 6e34fa1b75 [VM] Allow run_vm_tests to load like we do in normal dart
Our build files use non-appjit snapshots for kernel-service for
certain architectures, e.g. simulators.

Issue https://github.com/dart-lang/sdk/issues/31585

Change-Id: I5162b8fe266f97710c50c347ae20b53cd66cf75d
Reviewed-on: https://dart-review.googlesource.com/29240
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2017-12-13 18:39:54 +00:00
Zachary Anderson 2948f8c1b7 Reland: [dart:io] Moves Http code into a separate library.
This moves Http code into dart:_http. dart:io then imports and
re-exports dart:_http. This is the first stage of moving
dart:_http into its own pub package.

This CL was reverted due to a failure in the Flutter engine build
which happened due to an incomplete change in gen_snapshot.cc, and to
update sdk/lib/libraries.yaml and sdk/lib/libraries.json

Change-Id: Ie90c77ef631aea7a163774b58e8ccbaf71a24d3c
Reviewed-on: https://dart-review.googlesource.com/7588
Reviewed-by: Zach Anderson <zra@google.com>
2017-09-21 19:21:25 +00:00
Zach Anderson 64bf1b49b0 Revert "[dart:io] Moves Http code into a separate library."
Reverting for broken Flutter build and kernel platform compilation test. It looks like the new _http library is missing from various snapshots. Not sure why this didn't fail locally.

This reverts commit ac9ff3f3af.

Change-Id: I7fbc2f842cf1380793e7af9fb869cacd14682885
Reviewed-on: https://dart-review.googlesource.com/7600
Reviewed-by: Zach Anderson <zra@google.com>
2017-09-21 15:57:59 +00:00
Zachary Anderson ac9ff3f3af [dart:io] Moves Http code into a separate library.
This moves Http code into dart:_http. dart:io then imports and
re-exports dart:_http. This is the first stage of moving
dart:_http into its own pub package.

Change-Id: Icd33232a97b3d75511ef7ec88b01fd47cdcf5a23
Reviewed-on: https://dart-review.googlesource.com/6420
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Florian Loitsch <floitsch@google.com>
2017-09-21 15:10:22 +00:00
Zachary Anderson fc41a57a93 [dart:io] Allow an embedder to disallow certain operaions
Fuchsia's Dart and Flutter content handlers share the implementation of
dart:io with the command line embedder, but would like to disable
some operations that don't make sense for them, like exiting thoe whole
process, which may be hosting multiple unrelated Isolates.
Change-Id: I825ece49c685471ff85802873b1c0f974c507aed
Reviewed-on: https://dart-review.googlesource.com/3687
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2017-09-08 05:02:07 +00:00
Zachary Anderson d0295c873c [dart:io] Namespaces for file IO
Fuchsia requires the ability to sandbox Isolates w.r.t. file IO.
When a new Isolate starts, Fuchsia will pass the Isolate an object
called a namespace. We can translate the namespace object into a
file descriptor suitable for passing to the *at() family of
POSIX file system calls. The file system calls will then
have visibility only into the specified namespace.

We also plumb Namespaces through on all the other platforms as well to
make the change easier to test and so that in the future we can
implement e.g. per-isolate cwds.

This change adds a new internal class to dart:io called _Namespace,
which is implemented in a patch file. See:

sdk/lib/io/namespace_impl.dart
runtime/bin/namespace_patch.dart

The embedder can set up a non-default namespace by calling
_Namespace._setupNamespace during Isolate setup.

Instances of _Namespace have a native field that holds a pointer
to a native Namespace object. See:

runtime/bin/namespace.h

Calls from e.g. file_impl.dart are now also passed a
_Namespace object. The implementations in e.g. file.cc and
file_linux.cc then extract the namespace, and use it to compute a
file descriptor and path suitable for passing to e.g. openat().

related US-313

R=asiva@google.com, rmacnak@google.com

Review-Url: https://codereview.chromium.org/3007703002 .
2017-08-30 09:34:36 -07:00
Zachary Anderson 130f3be297 [dart:io] Move _getUriBaseClosure to dart:io
In a forthcoming change, this will allow Uri.base to be aware of
the isolate's current namespace.

R=rmacnak@google.com

Review-Url: https://codereview.chromium.org/2998373002 .
2017-08-24 20:06:52 -07:00
Ryan Macnak 7dfe62f70d [standalone] Automatically decompress gzip'd resources, including sources and script snapshots.
Closes #30315

R=asiva@google.com, zra@google.com

Review-Url: https://codereview.chromium.org/2991393002 .
2017-08-11 12:18:19 -07:00
Ryan Macnak 02ec4f494e Remove old dead tag handler.
R=asiva@google.com, zra@google.com

Review-Url: https://codereview.chromium.org/2991763002 .
2017-07-26 09:53:04 -07:00
Zachary Anderson 6cd8a79078 VM: Re-format to use at most one newline between functions
R=asiva@google.com

Review-Url: https://codereview.chromium.org/2974233002 .
2017-07-13 08:08:37 -07:00
Siva Annamalai 286dd51948 Changes to make isolate reload functionality work with the --dfe option.
R=aam@google.com, rmacnak@google.com

Review-Url: https://codereview.chromium.org/2894773004 .
2017-05-25 15:40:44 -07:00
Ryan Macnak 987165f022 Reload native extensions when starting from a snapshot.
Fixes #21180
Fixes #27574

R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org/2475523002 .
2016-11-07 16:17:47 -08:00
Zachary Anderson 479a97b129 clang-format runtime/bin
R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org/2480793002 .
2016-11-04 12:30:56 -07:00
Zachary Anderson 103881d01c Make header include guards great again
i.e. #ifndef VM_WHATEVER -> #ifndef RUNTIME_VM_WHATEVER

This lets us remove a hack from the PRESUBMIT.py script that existed
for reasons that are no longer valid, and sets us up to add some
presubmit checks for the GN build.

R=asiva@google.com, rmacnak@google.com

Review URL: https://codereview.chromium.org/2450713004 .
2016-10-26 00:26:03 -07:00
Vyacheslav Egorov f67ce21068 VM support for running Kernel binaries.
BUG=
R=asiva@google.com, fschneider@google.com

Review URL: https://codereview.chromium.org/2411823003 .
2016-10-15 22:48:46 +02:00
Siva Annamalai d41d5dc414 Do not use Dart_DefaultCanonicalizeUrl for resolving a script uri in the current working directory as that code has not been written to handle paths on windows.
Review URL: https://codereview.chromium.org/2081853004 .
2016-06-20 19:59:53 -07:00
Siva Annamalai aca3d3eedf Fix canonicalization of relative paths, Dart_DefaultCanonicalizeUrl expects the base)url to end with a '/' when a directory is passed in otherwise it assumes a file path is passed in.
Review URL: https://codereview.chromium.org/2087723002 .
2016-06-20 17:55:41 -07:00
Siva Annamalai 11682cd4c7 Use the new loader mechanism to resolve URIs and load script files in gen_snapshot. This should allow the package config resolution to work in gen_snapshot for flutter and dartium snapshot generation cases.
R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org/2073173002 .
2016-06-20 13:56:06 -07:00
John McCutchan 6fd8fd7987 Rework standalone to use a synchronous loader that does not invoke Dart code
- [x] The first caller of the tag handler blocks, recursive callers queue work and exit.
- [x] Use a NativeMessageHandler to receive I/O results from the service isolate.
- [x] Preserve load error message format.
- [x] Move packages map into service isolate.
- [x] Wire up Todd's native URI code.

R=turnidge@google.com

Review URL: https://codereview.chromium.org/1998963003 .
2016-06-06 14:15:01 -07:00
John McCutchan d47866964c Fix canonicalization of --url_mapping URIs in gen_snapshot
When gen_snapshot encounters a url that has been remapped with the --url_mapping command line argument it rewrites the library's url to be the mapped url before canonicalization. The new C++ API only does canonicalization with respect to the library's url (as returned by Dart_LibraryUrl) which is insufficient for gen_snapshot. The correct long-term fix is to alter the new C++ API to allow for the base url to be passed in directly rather than indirectly via Dart_LibraryUrl.

This CL just restores some deleted code and has gen_snapshot work like it did before. The standalone embedder still uses the C++ API during loading.

Review URL: https://codereview.chromium.org/2031103002 .
2016-06-02 14:52:42 -07:00
Todd Turnidge a7d46eb5a6 Canonicalize uris in C++ instead of Dart for the standalone embedder.
Adds Dart_DefaultCanonicalizeUrl() to the dart embedding api.

Motivation:

As we try to get source reloading working for the standalone embedder, things get simpler if an isolate doesn't run Dart code while it is loading Dart code.  We intend to solve this by moving the embedder tag handler calls to the service isolate.  But making a blocking rpc into the service isolate whenever a url needs to be canonicalized during parsing seems like it would slow things down and make things complicated.  By moving canonicalization into C++, we avoid this.

R=ahe@google.com, fschneider@google.com, johnmccutchan@google.com

Review URL: https://codereview.chromium.org/2011543002 .
2016-06-02 12:29:57 -07:00
Todd Turnidge b3a1066c8e Simplify the canonicalization of dart-ext uris.
We used to stuff the path of the canonicalizing library into the uri
so that we could retrieve it later.  That isn't necessary, as the
library is still available when we import later.

BUG=
R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org/2004933002 .
2016-05-23 10:25:25 -07:00
Ryan Macnak f262fad639 Option to output precompiled instructions as a blob for use with mmap instead of assembly for use in a shared library.
BUG=http://dartbug.com/26199
R=fschneider@google.com

Review URL: https://codereview.chromium.org/1915853004 .
2016-04-25 16:19:34 -07:00
Zach Anderson 522ce88fe6 Implements remaining SecurityContext calls for iOS
BUG=
R=asiva@google.com, iposva@google.com

Review URL: https://codereview.chromium.org/1852783003 .
2016-04-13 10:27:39 -07:00
Zachary Anderson 7308e58c3f Really remove io support when dart:io is unsupported.
Previously we would compile in implementaitions of native calls for
IO functions that would never be used. This CL provides implementations
that throw a Dart exception if they're called by mistake. It also uses
a DART_IO_DISABLED preprocessor define to clean up the build files and
check that we're not including code we shouldn't.

R=iposva@google.com, johnmccutchan@google.com

Review URL: https://codereview.chromium.org/1839463002 .
2016-03-29 11:22:03 -07:00
Zachary Anderson c75a817ee0 Fixes some memory leaks in //runtime/bin
Also some style cleanups.

Decided to fix these leaks by using Dart_ScopeAllocate
instead of malloc and new. Leaks are noted in the CL.

I haven't finished looking over all the code in
//runtime/bin yet, but this CL was getting big.

Review URL: https://codereview.chromium.org/1781883002 .
2016-03-14 11:08:52 -07:00
Zachary Anderson 2cf6405ca9 Adds SecurityContext.setTrustedCertificatesBytes
Implements SecurityContext.setTrustedCertificates in terms of the new
function. This requires setTrustedCertificates to return a Future,
and removing the `directory` named argument as it is not possible to
implement with BoringSSL without blocking IO.

R=whesse@google.com

Review URL: https://codereview.chromium.org/1665433002 .
2016-02-08 08:41:49 -08:00
Siva Annamalai 1e5eab3a14 - reorganize DartUtils::PrepareForScriptLoading so that it does not have the wait for service load port code in it. This is needed so that it is possible to not wait for the service load port when running with a full application snapshot that requires no loading.
- cache builtin_lib in IsolateData so that the cached value can be used withouit having to call Builtin::LoadAndCheckLibrary which creates new string objects everytime it is called.

Review URL: https://codereview.chromium.org/1663963002 .
2016-02-04 09:18:31 -08:00
Ivan Posva 6d066c7e53 Add package config support to dart:isolate
- Add "static Future<Uri> get packageRoot;",
  "static Future<Uri> get packageConfig;" and
  "static Future<Uri> resolvePackageUri(Uri packageUri)" to Isolate class.
- Added "Uri packageRoot, Uri packageConfig, bool automaticPackageResolution: false" parameters to spawnUri.

BUG=
R=rmacnak@google.com

Review URL: https://codereview.chromium.org/1553233002 .
2016-01-12 18:19:04 -08:00
Florian Schneider 64e71a0b2e VM: Make more globals constant where easily possible.
Remove -fdata-section again from the Linux build configuration: It prevented
some optimizations in gcc and clang - fewer things were recognized as constants.

Add const to pointers/arrays in some places to help compilers with determining
what is a constant.  A common pattern is strlen of a string literal const char*,
or an array of function pointers.

Tested with gcc 4.8.4 / clang 3.4 and improves code qualtiy + reduces binary size.

BUG=
R=iposva@google.com, rmacnak@google.com

Review URL: https://codereview.chromium.org/1462953002 .
2015-11-20 10:52:07 +01:00
John McCutchan ceb12c4f69 Switch profiler from isolates to threads
- API breakage: Dart_IsolateBlocked, Dart_IsolateUnblocked -> Dart_ThreadDisableProfiling, Dart_ThreadEnableProfiling.
- Remove IsolateProfilerData.
- Move thread at blocking call count from isolate to thread.
- Always interrupt threads unless they are blocked.
- We can no longer count "idle" ticks.
- Only record sample if thread is the current mutator of an isolate.
- Refactor ThreadInterrupterCallback to ensure that Thread* is valid.

Threads are only ever sent signals if ThreadInterruptsEnabled is true. Which is controlled by two functions:

void DisableThreadInterrupts();
void EnableThreadInterrupts();

R=asiva@google.com, iposva@google.com

Review URL: https://codereview.chromium.org/1423473004 .
2015-11-04 07:59:16 -08:00
William Hesse cc4a5d2e7c Revert "Switch profiler from isolates to threads"
Reverts commit 6365c27f81 and
commit 8b9ed6cfb3.

They are causing flaky timeouts (hangs) on all vm cc tests on all Windows vm bots.

R=mit@google.com

Review URL: https://codereview.chromium.org/1425093006 .
2015-11-03 10:42:55 +01:00
John McCutchan 6365c27f81 Switch profiler from isolates to threads
- API breakage: Dart_IsolateBlocked, Dart_IsolateUnblocked -> Dart_ThreadDisableProfiling, Dart_ThreadEnableProfiling.
- Remove IsolateProfilerData.
- Move thread at blocking call count from isolate to thread.
- Always interrupt threads unless they are blocked.
- We can no longer count "idle" ticks.
- Only record sample if thread is the current mutator of an isolate.
- Refactor ThreadInterrupterCallback to ensure that Thread* is valid.

Threads are only ever sent signals if ThreadInterruptsEnabled is true. Which is controlled by two functions:

void DisableThreadInterrupts();
void EnableThreadInterrupts();

R=asiva@google.com, iposva@google.com

Review URL: https://codereview.chromium.org/1412733008 .
2015-11-02 12:47:52 -08:00