Commit Graph

1576 Commits

Author SHA1 Message Date
Sigurd Schneider
367815ea13 Revert "Avoiding re-externalization of strings."
This reverts commit 2c4c2ad694.

Reason for revert: Speculatively revert CL, as it seems to break blink debug bots:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8-Blink%20Linux%2064%20(dbg)/12756
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8-Blink%20Linux%2064%20(dbg)/12764

# Fatal error in ../../v8/src/api.cc, line 5960
# Check failed: expected == value ((nil) vs. 0x176ae0f70a48).

Original change's description:
> Avoiding re-externalization of strings.
>
> Bug: chromium:845409
> Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
> Change-Id: I75bddcf0e8879d2161486f24d1cd4e46d8fe008d
> Reviewed-on: https://chromium-review.googlesource.com/1139056
> Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54599}

TBR=ulan@chromium.org,jkummerow@chromium.org,hpayer@chromium.org,mlippautz@chromium.org,rfbpb@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: chromium:845409
Change-Id: Ie172148c0bdef71c0cf9819e63a66aec09d6888d
Reviewed-on: https://chromium-review.googlesource.com/1146582
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54611}
2018-07-23 14:25:09 +00:00
Rodrigo Bruno
2c4c2ad694 Avoiding re-externalization of strings.
Bug: chromium:845409
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I75bddcf0e8879d2161486f24d1cd4e46d8fe008d
Reviewed-on: https://chromium-review.googlesource.com/1139056
Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54599}
2018-07-20 18:02:59 +00:00
Dan Elphick
ed9ea21661 Fix uses of V8_DEPRECATE_SOON in v8.h
Move brackets enclosing declarator in a couple of V8_DEPRECATE_SOON
cases so that the attribute is correctly placed.

I.e. should come after the class keyword and after a function signature
but before the body.

Also adds suppressions for a case where a replacement method calls
the deprecated method it replaces.

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I490ff07a13552cf335186d64ca061f21ac4e8afc
Reviewed-on: https://chromium-review.googlesource.com/1140593
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54527}
2018-07-18 18:32:09 +00:00
Dan Elphick
3dd5c6fe38 [string] deprecate String::Utf8Length
Deprecate String::Utf8Length in favor of a new, similar function that
takes the Isolate used for the String::Flatten call as an argument.

BUG: v8:7786

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Icaf04b272679fd853e9cdbe6c7088f63e9aacb95
Reviewed-on: https://chromium-review.googlesource.com/1124724
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54476}
2018-07-16 21:53:26 +00:00
Dan Elphick
8a011b57d8 [explicit isolates] Remove nearly all GetIsolates in api.cc
This marks the following methods as V8_DEPRECATE_SOON and adds new
versions that take Isolate* as their first parameter:
PrimitiveArray::Set
PrimitiveArray::Get
StackTrace::GetFrame
String::Write
String::WriteOneByte
String::WriteUtf8
String::Concat
StringObject::New

Additionally StackFrameInfo, Module and TemplateInfo are marked as
NeverReadOnlySpaceObject so their GetIsolates calls are safe.

In api.cc, ContextFromHeapObject is split into
ContextFromNeverReadOnlySpaceObject and UnsafeContextFromHeapObject,
where the latter uses the deprecated methods but is only called from
methods that were themselves already marked V8_DEPRECATE_SOON.

Deprecation warnings for using HeapObject::GetHeap/GetIsolate are
suppressed for all the uses in V8_DEPRECATE_SOON methods so that stats
produced using tools/collect_deprecation_stats.sh don't show them.

Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I48799b5599711661b14d0cd04f21a0a00322da4a
Reviewed-on: https://chromium-review.googlesource.com/1136641
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54469}
2018-07-16 14:33:24 +00:00
Andreas Haas
7971f9d6f7 [wasm] Prepare API changes for WebAssembly.instantiateStreaming
This is the first CL to refactor WebAssembly.instantiateStreaming to
make it spec compliant again. The design doc where the whole change is
discussed is available in the tracking bug. The tracking bug also
references prototype implementations of the whole change, which includes
the changes in this CL.

Tests for the new API functions will be added with the second V8 CL
which adds the implementation of the API functions.

R=ulan@chromium.org

Bug: chromium:860637
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ia1048b7ca0291c824ef4212ebde2c6054e102069
Reviewed-on: https://chromium-review.googlesource.com/1127667
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54393}
2018-07-12 09:06:28 +00:00
Michael Lippautz
8de19ddbcf [unified-heap] Add finalization trigger
Allows embedders using the EmbedderHeapTracer to synchronously finalize
an already running garbage collection

Bug: chromium:843903
Tbr: ulan@chromium.org
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Iea01451ea2c1204c34dc7904732abae6b63e1704
Reviewed-on: https://chromium-review.googlesource.com/1128971
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54378}
2018-07-11 12:25:40 +00:00
Michael Lippautz
848f989e3d [embedder-tracing] Deprecate NumberOfWrappersToTrace
Deprecates EmbedderHeapTracer::NumberOfWrappersToTrace and replaces it
with EmbedderHeapTracer::IsTracingDone.

V8 only really cares about the final state (emptiness) here and
embedders may choose implementations that have a hard time determinining
exact size for their work queues.

Bug: chromium:843903
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I1e141c47771ef08aab7dbe204e8175cfee99cf92
Reviewed-on: https://chromium-review.googlesource.com/1127599
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54311}
2018-07-09 08:06:49 +00:00
Benedikt Meurer
907d7bcd18 [promise] Implement Swallowed Rejection Hook.
This extends the current Promise Rejection Hook with two new events

  kPromiseRejectAfterResolved
  kPromiseResolveAfterResolved

which are used to detect (and signal) misuse of the Promise constructor.
Specifically the common bug like

  new Promise((res, rej) => {
    res(1);
    throw new Error("something")
  });

where the error is silently swallowed by the Promise constructor without
the user ever noticing can be caught via this hook.

Doc: https://goo.gl/2stLUY
Bug: v8:7919
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I890a7e766cdd1be88db94844fb744f72823dba33
Reviewed-on: https://chromium-review.googlesource.com/1126099
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54309}
2018-07-09 06:06:39 +00:00
Toon Verwaest
c7ad1ddd44 [scanner] Drop lonely byte support as it's unused by blink anyway.
The embedder should ultimately be responsible for handling this since they
anyway give us a copy of the data. They can easily make sure that the chunks we
get do not have lonely bytes.

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ie862107bbbdd00c4d904fbb457a206c2fd52e5d0
Reviewed-on: https://chromium-review.googlesource.com/1127044
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54262}
2018-07-05 14:22:44 +00:00
Ross McIlroy
ce409375b3 [sfi] Reduce FunctionTokenPosition and ExpectedNofProperties to 16 bits.
Changes SharedFunctionInfo to store a function_token_offset, relative
to the start_position, instead of the full function_token_position.
This enables us to reduce both FunctionTokenPosition and
ExpectedNofProperties to 16 bits each, saving 32 bits per SFI.

BUG=chromium:818642,chromium:783853
TBR=yangguo@chromium.org

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I45aefcec605c1da502053c23c73564ceaed6c9b5
Reviewed-on: https://chromium-review.googlesource.com/1122982
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54220}
2018-07-04 16:53:37 +00:00
Rodrigo Bruno
c5c4b588f1 [heap] Forcing external strings to be registered in the external string table.
Bug: chromium:845409
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2ab1ca18a900828e4e116f1b087925319d41bf97
Reviewed-on: https://chromium-review.googlesource.com/1124845
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
Cr-Commit-Position: refs/heads/master@{#54203}
2018-07-04 10:55:26 +00:00
Anna Henningsen
477df066db [API] Expand BigInt API
Provide a more complete BigInt API.

Bug: v8:7712
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ic8562d616f3125deabdf8b52c7019b191bef0e07
Reviewed-on: https://chromium-review.googlesource.com/1101198
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54122}
2018-07-02 05:39:36 +00:00
Clemens Hammacher
9635e1a303 [wasm] Move wire bytes to the NativeModule
The wire bytes are currently stored as {SeqOneByteString} on the JS
heap. In order to make the {NativeModule} isolate independent, and to
ensure fast access to the wire bytes, they should move to the native
heap.

R=titzer@chromium.org

Bug: chromium:854794, v8:7868, v8:7424
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I36811ec87f780c5b1f6863cd6de89a165aa0b7d5
Reviewed-on: https://chromium-review.googlesource.com/1108208
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53977}
2018-06-22 15:45:59 +00:00
Clemens Hammacher
e90af2c702 [api] Properly define BufferReference instead of CallerOwnedBuffer
The name {CallerOwnedBuffer} does not make sense in all situations,
especially if such an object is returned instead of being passed as
argument.
I am working on moving the wasm wire bytes off the JS heap, and hence
will return unowned references via the API. To prepare this change, I
deprecate the existing {CallerOwnedBuffer} and introduce a new
{BufferReference} struct with proper field names.

R=titzer@chromium.org, adamk@chromium.org

Bug: v8:7868
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ic8953951447038a831b15a336a52a199bfbeafd5
Reviewed-on: https://chromium-review.googlesource.com/1108207
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53929}
2018-06-21 13:17:18 +00:00
Anna Henningsen
4da05e97ad [SAB] Fix flake in Atomics.wait
As specified in https://tc39.github.io/ecma262/#sec-atomics-wait, the
critical section must occur before the load and comparison.

This slightly changes the `AtomicsWaitCallback` API, but in a
direction that arguably makes it more consistent.

As a drive-by fix, reset `node->waiting_` in case there
was an exception from the first callback.

Refs: https://chromium-review.googlesource.com/c/v8/v8/+/1095814
Bug: v8:7836
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I577cdf76cedfe39bc61f783203b543c7c68fc238
Reviewed-on: https://chromium-review.googlesource.com/1096236
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Ben Smith <binji@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53673}
2018-06-12 15:46:37 +00:00
Igor Sheludko
d123f30b6d [ptr-compr] Support 31-bit Smis in lower half-word on 64-bit architectures.
This CL introduces a new gn argument: v8_enable_pointer_compression which is
false by default. All the changes done in this CL are made under this flag.

Upper half-word of a Smi word must be properly sign-extended according to the
sign of the lower-half containing the actual Smi value.

Bug: v8:7703
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2b52ab49cd18c7c613130705de445fef44c30ac5
Reviewed-on: https://chromium-review.googlesource.com/1061175
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53519}
2018-06-05 11:37:35 +00:00
Anna Henningsen
5eaa03b2d3 [api] Add AtomicsWaitCallback for diagnostics
Add an inspection callback for embedders that allows tracking
of `Atomics.wait()` calls in order to enable diagnostic tooling
around it, as well as providing a way to break out of an
`Atomics.wait()` call without having to fully terminate execution.

The motivation here is that this allows embedders to perform
somewhat customizable deadlock detection.

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ib6346747aa3cbffb07cf6abd12645e2d98584f0f
Reviewed-on: https://chromium-review.googlesource.com/1080788
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ben Smith <binji@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53517}
2018-06-05 10:11:13 +00:00
Ulan Degenbaev
0c5096130b Revert "Global handles: Remove independent handle infrastructure"
This reverts 0944553ee8.

This is a short-term fix for NodeJS regression caused by Scavenger
not collecting weak handles that are marked as independent.

Bug: chromium:847863, chromium:780749
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ibd5224893c64baef1aaaecd18af94f29e2e74487
Reviewed-on: https://chromium-review.googlesource.com/1082439
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53498}
2018-06-04 18:33:33 +00:00
Alexei Filippov
90569cb053 [cpu-profiler] Remove deprecated Isolate::GetCpuProfiler method.
Do not create a CPU profiler for each isolate implicitly.

BUG=v8:7070

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I6ddd93c58f56591477d8fe4249103a74b7698904
Reviewed-on: https://chromium-review.googlesource.com/1043449
Commit-Queue: Alexei Filippov <alph@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53449}
2018-05-30 22:16:28 +00:00
jgruber
70b5fd3b6e [api] Add option to consume code cache on module compilation
This extends the ScriptCompiler::CompileModule function with a
CompileOptions argument. Accepted values are kNoCompileOptions (in
which case, behavior remains unmodified) and kConsumeCodeCache. If the
latter is passed, we try to fetch the given module from the code
cache.

Since it is possible to compile the same source code as both a script
and a module (and different code is generated for the two cases), a
new is_module bit is added to the SerializedCodeData header to
disambiguate between the two cases.

Bug: v8:7685
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I34b3642505577ed9ed0caedbee5876308c5a53ea
Reviewed-on: https://chromium-review.googlesource.com/1073327
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53432}
2018-05-30 07:32:48 +00:00
Anna Henningsen
0fd549f885 [api] Allow escaping MaybeLocal handles on EscapableHandleScope
This adds a convenience overload for `EscapableHandleScope::Escape()`
which moves `MaybeLocal<T>`s into the outer scope, like a regular
`Local<T>`.

This basically moves the syntactic clutter of having to write
`maybe_local.FromMaybe(Local<Foo>())` instead of just `maybe_local`
to a central location.

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I1d87d75c6564b10e8ec34957bdd3eac46ffea917
Reviewed-on: https://chromium-review.googlesource.com/1056529
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53415}
2018-05-29 14:51:18 +00:00
Hannes Payer
fb436a5e15 Adding an API to enable and disable the memory savings mode.
Bug: chromium:846360
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I5376d4f6f9c8df768d60c63e0a767bf41b51b8b3
Reviewed-on: https://chromium-review.googlesource.com/1071531
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53345}
2018-05-24 18:25:32 +00:00
Anna Henningsen
ff0a979333 [api] Expose PreviewEntries as public API
Turn `debug::EntriesPreview` into a public API.
This is a straightforward approach to addressing
https://github.com/nodejs/node/issues/20409
(not relying on functionality behind `--allow-natives-syntax`)
in Node.js.

Refs: https://github.com/nodejs/node/issues/20409
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I7021e5846012a55a82c488408ded6591f6b139e7
Reviewed-on: https://chromium-review.googlesource.com/1057467
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53226}
2018-05-17 08:04:33 +00:00
Anna Henningsen
1e8d963fb3 [api] Slightly improve ValueSerializer documentation
Without specifying what the default allocator does, using
the buffer returned from `Release()` means that one basically
had to make an educated guess on how to free it
(and that ownership actually was transferred to the caller).

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ie2ac0c91d9bdafbe91f6bce9b2263e304b2336ea
Reviewed-on: https://chromium-review.googlesource.com/1056369
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53225}
2018-05-17 08:01:32 +00:00
jgruber
8ec92f5118 [api] Add a dedicated UnboundModuleScript type
Module and script SharedFunctionInfos can't be used interchangeably
(e.g.: it should not be possible to bind a Module's SFI to a Context).

The dedicated type disambiguates the two.

This also adds an overload for CreateCodeCache which takes an unbound
module script instead of an unbound script. Both are just a SFI
underneath, so their behavior is identical.

Bug: v8:7685
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Iab519d0d50b6b41c95abdb6397f5622e292da4d8
Reviewed-on: https://chromium-review.googlesource.com/1047107
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53150}
2018-05-14 11:48:51 +00:00
Andreas Haas
8f1c90d2ee [api] Add better documentation to Isolate::Allocate
R=ulan@chromium.org
CC=​jbroman@chromium.org

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I606a182774188b953247b62e5426ee7feadd1a74
Reviewed-on: https://chromium-review.googlesource.com/1047206
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53105}
2018-05-09 14:57:59 +00:00
Simon Zünd
18f2636ac7 [array] Add counter for sorting non-packed JSArrays.
This CL adds a counter for sorting non-packed JSArrays where
Object.prototype was modified, or the prototype of the instance
differs from Array.prototype.

This is the V8 side of the change.
The Chromium-side CL: https://crrev.com/c/1051651

R=jgruber@chromium.org

Bug: v8:7382
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I3ce9789a5df4bb9af5d1bfc89681fcd112e28e83
Reviewed-on: https://chromium-review.googlesource.com/1051650
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53101}
2018-05-09 13:35:10 +00:00
Igor Sheludko
11aaf0fb84 [api] Move tagging scheme definition up in include/v8.h
... in order to be able to use it in other constants definitions in the header.

Bug: v8:7570
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Id5d6ae34ab401ecf063bf5897b87b6bb87c24960
Reviewed-on: https://chromium-review.googlesource.com/1032782
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53097}
2018-05-09 13:17:07 +00:00
Andreas Haas
8aee014194 [wasm] Remove the wasm-stream-compilation flag
In addition to a git grep I ran the
virtual/enable_wasm_streaming/http/tests/wasm_streaming/wasm_response_apis.html
layout test locally to confirm that the flag is not used in Chrome.

R=titzer@chromium.org

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I00d013b85b585d26e50aacaeb82fb0b1ce1ff56c
Reviewed-on: https://chromium-review.googlesource.com/1049965
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53072}
2018-05-08 14:13:29 +00:00
Erik Luo
4b52f96480 [debug] add ability to do side-effect-free call to NewInstance
Creating a new instance from a v8::Function will invoke its
constructor. If it is an API callback that has not been marked as
kHasNoSideEffect, this CL introduces a way to invoke it without
throwing.

Calls within the constructor are still checked for side effects.

Bug: chromium:829571
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ia4e410d487e2847bc511cb96f0be30a3563991f6
Reviewed-on: https://chromium-review.googlesource.com/1034116
Commit-Queue: Erik Luo <luoe@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53003}
2018-05-04 16:47:24 +00:00
jgruber
2d3f6f9103 [api] Add Module::GetUnboundScript()
This method is intended for use by code caching as follows:

1. The module is compiled (and perhaps instantiated).
2. The embedder fetches and stores the module's unbound script (i.e.
   the shared function info).
3. Module evaluation, maybe triggering lazy compilation.
4. Generated code for the module (which hangs off the shared function
   info) is inserted into the code cache.

Subsequent module loads can load from the code cache prior to
evaluation.

Bug: v8:7685
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I80018cd921ab1a18323906a548b249e19d9f9509
Reviewed-on: https://chromium-review.googlesource.com/1041745
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52998}
2018-05-04 14:52:29 +00:00
Benoît Lizé
1a0efd803a Report the per-isolate total size of scripts source.
As with other code size stats, this doesn't distinguish between live and
dead objects, and doesn't scan the young generation.

Also make ExternalString::is_short() const.

Bug: chromium:837659
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I72815edb719ba61d9727e226ff1da0fc4af22a24
Reviewed-on: https://chromium-review.googlesource.com/1032994
Commit-Queue: Benoit L <lizeb@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52955}
2018-05-03 13:43:55 +00:00
Yang Guo
afd73a4856 [api] deprecate old code caching APIs that require source string.
R=jgruber@chromium.org

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I62955f95812a2c6ac04599c437971863a73af66d
Reviewed-on: https://chromium-review.googlesource.com/1014103
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52817}
2018-04-26 14:53:22 +00:00
Alexey Kozyatinskiy
e81b0db787 [runtime] added v8::Isolate::SafeForTerminationScope and isolate flag
When only_terminate_in_safe_scope flag is passed as CreateParams for
v8::Isolate, V8 does not trigger intrruption for termination if there
is no explicit SafeForTerminationeScope.
Scope enables termination only in direct v8 calls, any recursive calls
require explicit SafeForTerminationScope.

R=yangguo@chromium.org

Bug: chromium:820640
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Iac17e30a4b47aa84e70e9218ca0adca9d07f726e
Reviewed-on: https://chromium-review.googlesource.com/1025390
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52793}
2018-04-25 18:11:58 +00:00
Erik Luo
9b3dafb99a [debug] expose SideEffectType when setting template accessors
This expands the SideEffectType flag to cover whitelisting embedder
callbacks that are setup with Template accessors.

- v8::ObjectTemplate::SetNativeDataProperty
- v8::ObjectTemplate::SetLazyDataProperty
- v8::ObjectTemplate::SetAccessor

Bug: v8:7515
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ieda6c793141ab249c4f41d00e6572fe2a29ac629
Reviewed-on: https://chromium-review.googlesource.com/1015896
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Erik Luo <luoe@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52770}
2018-04-24 22:52:48 +00:00
Andreas Haas
5c9b30ae38 [api] Split isolate allocation and initialization
At the moment, the isolate is allocated and initialized in a single
step. This has the downside that the platform cannot register the
isolate before the isolate gets initialized, and therefore the platform
is not available for the isolate during initialization. With this CL we
register the uninitialized isolate on the platform and initialize the
isolate after that.

This change is needed to allow the creation of task runners already
during the initialization of the isolate.

The related chromium CL: https://crrev.com/c/1015020

R=yangguo@chromium.org

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I52e89388a757f2693d1a800e7aa7701aa0080795
Reviewed-on: https://chromium-review.googlesource.com/1014044
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52731}
2018-04-23 14:48:46 +00:00
jgruber
b3738e6583 [api] Deprecate {Create,WarmUp}SnapshotDataBlob
These functions are now unused within V8, as we need tighter control in
mksnapshot for creating embedded.cc.

Embedders should switch to using SnapshotCreator directly.

Bug: v8:6666
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Id231b3d1fdf50e06c9278f13d095186364264b86
Reviewed-on: https://chromium-review.googlesource.com/1019442
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52692}
2018-04-19 14:58:30 +00:00
Jakob Kummerow
55110038a1 [bigint] API: Implement missing Big{Int,Uint}64Array::Cast
This doesn't change the API, it just makes it functional: the
functions were declared already, but they lacked an implementation
so far. Trying to use them in Blink detects that issue.

Bug: v8:6791
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I48902a5bba4a42f2922eafd22858d584731fc777
Reviewed-on: https://chromium-review.googlesource.com/1014668
Reviewed-by: Daniel Clifford <danno@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52632}
2018-04-17 03:19:02 +00:00
Jakob Kummerow
f7d6b19f6c [ubsan] Fix many static_cast<int32_t> with undefined behavior
Casting from a floating-point type to an integer type is undefined behavior
if the integral part of the float cannot be represented in the range of the
int.

Bug: v8:3770, chromium:831145
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I2e85ea8b0f09bbeeb3e0dcc1135fc747fa312f6d
Reviewed-on: https://chromium-review.googlesource.com/1011651
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52631}
2018-04-17 02:02:18 +00:00
Yang Guo
a440efb27f [api] do not require source string for producing code cache.
The embedder should not need to keep track of the source string.

R=jgruber@chromium.org

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ie27df755a22fbcae7b6e87a435419d2d8f545558
Reviewed-on: https://chromium-review.googlesource.com/1013482
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52614}
2018-04-16 09:10:44 +00:00
Gus Caplan
39d546a240 [api] introduce v8::Value::IsModuleNamespaceObject
This allows an embedder to check if a Value is a module namespace object.

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Idffceff451dd5f5c6a53d4cb3ce02c1c2c5b653c
Reviewed-on: https://chromium-review.googlesource.com/1011762
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52597}
2018-04-13 18:26:36 +00:00
Clemens Hammacher
609c8059b2 Remove redundant WARN_UNUSED_RESULT macro
Replace all uses with V8_WARN_UNUSED_RESULT.
WARN_UNUSED_RESULT was defined in src/base/compiler-specific.h, which
includes include/v8config.h, which already defined
V8_WARN_UNUSED_RESULT.

R=mstarzinger@chromium.org

Bug: v8:7570
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I662072294605036ca5aa0c8fdaa0218ac5d95f23
Reviewed-on: https://chromium-review.googlesource.com/998893
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52457}
2018-04-06 16:06:15 +00:00
Erik Luo
6da12d420a [debug] expose SideEffectType for whitelisting embedder callbacks
This exposes new flags to allow embedders to whitelist callbacks as
side-effect-free during evaluation with throwOnSideEffect.

Accessors and Functions/FunctionTemplates can take a new param on:
- v8::Object::SetNativeDataProperty
- v8::Object::SetLazyDataProperty
- v8::Object::SetAccessor
- v8::FunctionTemplate::New
- v8::FunctionTemplate::NewWithCache
- v8::Function::New

While Interceptors can be created with an additional flag:
PropertyHandlerFlag::kHasNoSideEffect

Bug: v8:7515
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I14823316bdd6de6d362a1104b65f13504d0db056
Reviewed-on: https://chromium-review.googlesource.com/994550
Commit-Queue: Erik Luo <luoe@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52367}
2018-04-04 20:08:00 +00:00
Yang Guo
e71055211c [snapshot] extend code caching support to CompileFunctionInContext.
R=leszeks@chromium.org, mythria@chromium.org

Bug: v8:7554
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I3eb29d67dfa64887fb52ac706d069e15dd2d0e85
Reviewed-on: https://chromium-review.googlesource.com/980944
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52299}
2018-03-29 12:53:41 +00:00
Ulan Degenbaev
84a80e103b [heap,api] Introduce near-heap-limit callbacks.
The embedder can get notification when V8 heap size approaches the heap limit
and can extend the heap limit if needed using
- v8::Isolate::AddNearHeapLimitCallback
- v8::Isolate::RemoveNearHeapLimitCallback

This generalizes the exiting v8::debug::SetOutOfMemoryCallback API.

Bug: chromium:824214

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ia444cb7efb6fe85c57fa3785e8fd1d8b654a5224
Reviewed-on: https://chromium-review.googlesource.com/979447
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52238}
2018-03-27 08:29:56 +00:00
Franziska Hinkelmann
64dbd26e1c [api] Deprecate SetNamedPropertyHandler
I replaced usages in Chromium and other embedders. I think we can safely
deprecate and soon remove.

Drive-by fix: Fixed some typos.

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ia8e35adb2abebed3966403af61eda1ede319e5c3
Reviewed-on: https://chromium-review.googlesource.com/980452
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52236}
2018-03-27 04:15:04 +00:00
Daniel Clifford
c69b03baec Fix support for Builtin names for --gdbjit-full
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ib76185e7b6bc893460b97b43cc385412485da20c
Reviewed-on: https://chromium-review.googlesource.com/956464
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52188}
2018-03-23 16:26:01 +00:00
Marja Hölttä
79e6f35e80 [in-place weak refs] Move weak object tag away from v8.h.
Exposing it inside Internals was a hack. The downside of this CL is that heap
object tagging is in two places now (v8.h and globals.h).

BUG=v8:7308

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ic7115ab20d67109dd2b62c772d52eeb84fa7d9f7
Reviewed-on: https://chromium-review.googlesource.com/968423
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52093}
2018-03-21 08:57:17 +00:00
Eric Holk
7c61c3ce6e [wasm] Add new API for enabling trap handler
The new API supersedes the old `RegisterDefaultSignalHandler` and flag
combination. Now the embedder must explicitly call
`EnableWebAssemblyTrapHandler` to activate the trap handler and optionally
install the default signal handler. The old flag is now used only by D8 to
decide whether to call this function.

Bug: v8:5277

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I05fbb2138138bfc95b14361aabd712db84789b4a
Reviewed-on: https://chromium-review.googlesource.com/963179
Commit-Queue: Eric Holk <eholk@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52081}
2018-03-20 18:06:38 +00:00