Commit Graph

1646 Commits

Author SHA1 Message Date
Dan Elphick
55a348ceb4 [explicit isolates] Remove various GetIsolates
Ran GetIsolate/GetHeap removal script over all the header files included
into objects.cc. Affected classes include: ScriptContextTable
RuntimeCallTimerScope GlobalDictionaryShape Map LookupIterator
PrototypeIterator FixedArrayBuilder

Manually fixed up Map to mark its write operations as safe for
GetIsolate since they modify the object as so can't be done in RO_SPACE.

Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I2fd0960f085d1bcb4cf54b3418899ac0217917ca
Reviewed-on: https://chromium-review.googlesource.com/1138076
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54488}
2018-07-17 11:56:37 +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
Michael Lippautz
71dddd145d Revert "Reland "[heap] Added External Strings to external memory accounting.""
This reverts commit 7bff339e7f.

Reason for revert: Breaks autoroll, see bug.

Bug: v8:7944

Original change's description:
> Reland "[heap] Added External Strings to external memory accounting."
> 
> This is a reland of 5863c0b652
> 
> Original change's description:
> > [heap] Added External Strings to external memory accounting.
> > 
> > Bug: chromium:845409
> > Change-Id: I3fe2b294f6e038d77787cf0870d244ba7cc20550
> > Reviewed-on: https://chromium-review.googlesource.com/1118164
> > Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#54110}
> 
> Bug: chromium:845409
> Change-Id: Ied341ec6268000343d2a577b22f2a483460b01f5
> Reviewed-on: https://chromium-review.googlesource.com/1121736
> Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: 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@{#54410}

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

Change-Id: Ie55586e84f44a2d83c7f97110d60abb86f0730c5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:845409
Reviewed-on: https://chromium-review.googlesource.com/1136312
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54428}
2018-07-13 08:27:51 +00:00
Michael Lippautz
c1663fd300 Revert "Fix update external string call in morph string test."
This reverts commit 6b4ba7412a.

Reason for revert: Blocks roll, see bug.

Bug: v8:7944

Original change's description:
> Fix update external string call in morph string test.
> 
> Bug: chromium:845409
> Change-Id: Ic9b1fa0f669c8b9a82ed91d3f348dd070fc9267f
> Reviewed-on: https://chromium-review.googlesource.com/1135247
> Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54419}

TBR=mlippautz@chromium.org,rfbpb@google.com

Change-Id: I42121de37913bbe858b9a7c6a9dabf86090c493b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:845409
Reviewed-on: https://chromium-review.googlesource.com/1136311
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54427}
2018-07-13 08:26:11 +00:00
Rodrigo Bruno
6b4ba7412a Fix update external string call in morph string test.
Bug: chromium:845409
Change-Id: Ic9b1fa0f669c8b9a82ed91d3f348dd070fc9267f
Reviewed-on: https://chromium-review.googlesource.com/1135247
Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54419}
2018-07-12 16:14:39 +00:00
Rodrigo Bruno
7bff339e7f Reland "[heap] Added External Strings to external memory accounting."
This is a reland of 5863c0b652

Original change's description:
> [heap] Added External Strings to external memory accounting.
> 
> Bug: chromium:845409
> Change-Id: I3fe2b294f6e038d77787cf0870d244ba7cc20550
> Reviewed-on: https://chromium-review.googlesource.com/1118164
> Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54110}

Bug: chromium:845409
Change-Id: Ied341ec6268000343d2a577b22f2a483460b01f5
Reviewed-on: https://chromium-review.googlesource.com/1121736
Commit-Queue: Rodrigo Bruno <rfbpb@google.com>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: 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@{#54410}
2018-07-12 13:19:28 +00:00
Dan Elphick
36e8b3fe23 [explicit isolates] Make Heap::InNewSpace static
Heap::InNewSpace only needs to access the heap for a DCHECK and the part
that uses the heap only needs it if the object is in NEW_SPACE, in which
case getting it via pointer magic is fine.

Bug: v8:7786
Change-Id: Iaac237a3b8bcc9d55e436e3f972475e04b97f1f8
Reviewed-on: https://chromium-review.googlesource.com/1127798
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54345}
2018-07-10 08:52:29 +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
Leszek Swirski
f8e76e4b97 [GetIsolate] Use RORoots for Oddball checks
Replace Is<oddball>(GetIsolate()) calls with a no-parameter version
that goes through ReadOnlyRoots, and add a version that takes a
ReadOnlyRoots if that is available in the parent (but Isolate isn't).

Also opportunistically clean up a few places where ReadOnlyRoots are
available but we still pass in an Isolate parameter.

TBR=yangguo@chromium.org

Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Icc0b8a7d8f9c6b84c0ec8fe771fcfb75c9dc5468
Reviewed-on: https://chromium-review.googlesource.com/1126302
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54245}
2018-07-05 10:32:49 +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
Dan Elphick
b19ccf7221 [explicit isolates] Convert src/* to ReadOnlyRoots
In future the RO_SPACE root accessors in Heap will become private, so
instead convert them all to use ReadOnlyRoots.

Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2f2c031c03d56d360ef940fc925e0583e6ae31dc
Reviewed-on: https://chromium-review.googlesource.com/1125720
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54202}
2018-07-04 10:29:45 +00:00
Hannes Payer
a383aa33e5 Reland "[heap] Adds a young generation large object space"
Bug: chromium:852420
Change-Id: I44d0bde25283ac8c00155344f879eb1143b43bc9
Reviewed-on: https://chromium-review.googlesource.com/1119688
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54130}
2018-07-02 11:08:09 +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
Michael Achenbach
e5416386e6 Revert "[heap] Adds a young generation large object space"
This reverts commit fdf69d53b6.

Reason for revert: Speculative revert for broken GPU bots:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/Linux%20V8%20FYI%20Release%20%28NVIDIA%29/1638
https://ci.chromium.org/p/v8/builders/luci.v8.ci/Mac%20V8%20FYI%20Release%20%28Intel%29/1624

Original change's description:
> [heap] Adds a young generation large object space
> 
> This CL adds the young generation lage object spaces and a flag
> --young-generation-large-objects that by default allocates all
> large objects in this space. This is a preparation CL. The space
> is not fully functional.
> 
> Bug: chromium:852420
> Change-Id: Ib66d26fa52cda89bf04787084826aeb84b6ec1ac
> Reviewed-on: https://chromium-review.googlesource.com/1099164
> Commit-Queue: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54056}

TBR=ulan@chromium.org,yangguo@chromium.org,hpayer@chromium.org

Change-Id: I175514f806a19c7837022795210625ca40e3c318
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:852420
Reviewed-on: https://chromium-review.googlesource.com/1118038
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54072}
2018-06-28 06:18:35 +00:00
Hannes Payer
fdf69d53b6 [heap] Adds a young generation large object space
This CL adds the young generation lage object spaces and a flag
--young-generation-large-objects that by default allocates all
large objects in this space. This is a preparation CL. The space
is not fully functional.

Bug: chromium:852420
Change-Id: Ib66d26fa52cda89bf04787084826aeb84b6ec1ac
Reviewed-on: https://chromium-review.googlesource.com/1099164
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54056}
2018-06-27 13:37:41 +00:00
Leszek Swirski
6038f637a4 [GetIsolate] Remove 1-arg Handle constructor
Remove the one-argument Handle constructor and "handle" factory method,
replacing them with Isolates where available and GetIsolate() methods
otherwise.

TBR=verwaest@chromium.org

Bug: v8:7786
Change-Id: I8ee92ef727c05382c984a3e4c290198d0b312619
Reviewed-on: https://chromium-review.googlesource.com/1113542
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54025}
2018-06-26 11:02:30 +00:00
Leszek Swirski
882080c499 [GetIsolate] Remove GetIsolate use in Map
Roughly:
    GetIsolate(): -31
    handle(HeapObject): -6

TBR=verwaest@chromium.org

Bug: v8:7786
Change-Id: I3857f8c45f1f93c727d575d5f9244d9811949a7f
Reviewed-on: https://chromium-review.googlesource.com/1111838
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53997}
2018-06-25 11:38:37 +00:00
Leszek Swirski
83ac43275e [GetIsolate] More low-hanging fruit
Access Isolate* and Heap* wherever already available.

Roughly:
GetIsolate(): -20
GetHeap(): -22
Handle<>(HeapObject): -315
handle(HeapObject): -21

Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I2da36ed1909d849812a1cb6bf94cb735eedca45b
Reviewed-on: https://chromium-review.googlesource.com/1111707
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53987}
2018-06-23 09:53:20 +00:00
Dan Elphick
7da6adcb6b [explicit isolates] Remove GetHeap from CallHandlerInfo
Pass Isolate directly into CallHandlerInfo methods so that calls to
GetHeap can be removed.

Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: If28fbbd65530b01b69786c3e743754cff3b1ba3a
Reviewed-on: https://chromium-review.googlesource.com/1107926
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53945}
2018-06-21 16:41:18 +00:00
Leszek Swirski
b686ca2171 [GetIsolate] Remove (most) GetIsolate from src/objects-debug.cc
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ic00953a5375f60b61a093234c03ce0df41dbe228
Reviewed-on: https://chromium-review.googlesource.com/1110125
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53944}
2018-06-21 16:34:27 +00:00
Leszek Swirski
b8cf9627b9 [GetIsolate] Remove GetIsolate from String in src/objects.cc
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I98ac4de406630c14280927240e9471049af3e790
Reviewed-on: https://chromium-review.googlesource.com/1108118
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53920}
2018-06-21 11:59:58 +00:00
Sigurd Schneider
335d162556 [cctest] Bump max old space size for isolate creation
Bump limit for isolate creation in cctest; the test started crashing recently
on nosnap.debug builds, hence we bump the limit.

Bug: v8:7856
Change-Id: I7c2396c7f112a2ed7fc189f0fa72658e0ed75050
Reviewed-on: https://chromium-review.googlesource.com/1104691
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53816}
2018-06-19 08:01:07 +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
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
aaa700bda4 Revert "[heap] Remove independent handles"
This reverts 667555c6b8.

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
Change-Id: Ia1c02e042d0e593c6f5badb82c4ef20b923d3806
Reviewed-on: https://chromium-review.googlesource.com/1082442
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53502}
2018-06-04 19:13:20 +00:00
Alexey Kozyatinskiy
c002394687 [inspector] speedup async instrumentation
We use name of the function at the moment of first appearance of given
function in stack trace. Any further name changes would be ignored.
It gives us around 20% speedup.

Perf analysis: https://bit.ly/2wp99vt

R=yangguo@chromium.org,jgruber@chromium.org

Bug: v8:7078
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I9f21f0bd9cd923e5abaeffb9209df0be2f49afff
Reviewed-on: https://chromium-review.googlesource.com/1050984
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53446}
2018-05-30 16:17:51 +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
Marja Hölttä
71e4c57319 [objects.h splitting] Move TYPE_CHECKERs back to objects-inl.h.
Moving them away was a mistake. Fixing this enables getting rid of a bunch of
includes.

BUG=v8:5402

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I5482eab4281c7450350f058fe0a04a6f375ea082
Reviewed-on: https://chromium-review.googlesource.com/1070188
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53328}
2018-05-24 11:44:07 +00:00
Marja Hölttä
e24dd86858 [iwyu] objects-inl.h iwyu
BUG=v8:7490

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I83061dac1b255b239738f900b5149828bd2203ec
Reviewed-on: https://chromium-review.googlesource.com/1061496
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53237}
2018-05-17 15:14:02 +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
Maya Lekova
91ddb65d3b Revert promises optimizations due to regressions in async hooks
Revert "[async-await] Eliminate throwaway promise in async functions."

This reverts commit a840f1f8f7.

Revert "[async-generators] Also avoid throwaway promise here."

This reverts commit feb545ceba.

Revert "[async-await] Turn await closures into intrinsics."

This reverts commit d97bb31738.

Revert "[async-generators] Add fast-path for primitives in AsyncGeneratorYield."

This reverts commit e57b500eb2.

Revert "[async-generators] Add fast-path to skip "then" lookup in AsyncGeneratorResolve."

This reverts commit c15802e11e.

Revert "[promises] Correctly run before/after hooks for await."

This reverts commit ca7639239f.

Bug: v8:7253, v8:7745
Change-Id: I25ad0d2df3cfbc84dbb431aa25b268bce8a39e89
Reviewed-on: https://chromium-review.googlesource.com/1049975
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53139}
2018-05-14 09:36:22 +00:00
Erik Luo
a9b2373d30 [debug] fix NewInstanceWithSideEffectType dcheck for mode
The DCHECK was incorrect. This new API method can be called from any
debug mode since the embedder does not know which mode we are in.

It should only apply the side effect logic when the mode is
kSideEffects.

Bug: chromium:829571
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I11b0e5194b151a2b88171d6be21c3ccbba9cd408
Reviewed-on: https://chromium-review.googlesource.com/1046162
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Erik Luo <luoe@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53030}
2018-05-07 15:40:08 +00:00
jgruber
d8131cd63a [builtins] Convert CEntry/GetProperty/StringAdd stubs to builtins
Stubs and builtins are very similar. The main differences are that
stubs can be parameterized and may be generated at runtime, whereas
builtins are generated at mksnapshot-time and shipped with the snapshot
(or embedded into the binary).

My main motivation for these conversions is that we can generate
faster calls and jumps to (embedded) builtins callees from (embedded)
builtin callers. Instead of going through the builtins constants table
indirection, we can simply do a pc-relative call/jump.

This also unlocks other refactorings, e.g. removal of
CallRuntimeDelayed.

TBR=mlippautz@chromium.org

Bug: v8:6666
Change-Id: I4cd63477f19a330ec70bbf20e2af8a42fb05fabb
Reviewed-on: https://chromium-review.googlesource.com/1044245
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53027}
2018-05-07 15:02:42 +00:00
Yang Guo
9fb02b526f Allow function callbacks to have Proxy as receiver.
R=verwaest@chromium.org

Bug: v8:5773
Change-Id: Ifd29a1116ee8c86b8d8d24485bbfd19e260ab66b
Reviewed-on: https://chromium-review.googlesource.com/1046088
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53015}
2018-05-07 09:09:42 +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
Benedikt Meurer
ca7639239f [promises] Correctly run before/after hooks for await.
This fixes a bug where we didn't run before/after hooks for await when
the debugger is not active, as reported downstream in
https://github.com/nodejs/node/issues/20274

Change-Id: I1948d1884c591418d87ffd1d0ccb2bebf4e908f1
Reviewed-on: https://chromium-review.googlesource.com/1039386
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52909}
2018-05-02 10:51:34 +00:00
Ulan Degenbaev
7e61eb337f [test] Make test-api/ScavengeExternal*String non-threaded test.
ScavengeExternalString and ScavengeExternalOneByteString clear GC flags,
which confuses concurrent sweeping that was started from another test.

Tests that mutate flags should not be threaded.

Bug: v8:7671
Change-Id: I08656d06fe85ff45baca685ebe5982528aad774c
Reviewed-on: https://chromium-review.googlesource.com/1019102
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52690}
2018-04-19 13:55:50 +00:00
Dan Elphick
9ab6621ac7 Reland "Reland "[heap] Move initial objects into RO_SPACE""
This is a reland of 6c68efac14

Updated Heap::CommittedMemory and related functions to iterate over all
spaces rather than including them manually which can lead to a space
being overlooked. Also adds a test to ensure this the case.

Original change's description:
> Revert "Reland "[heap] Move initial objects into RO_SPACE""
>
> This reverts commit 6c68efac14.
>
> Reason for revert: https://bugs.chromium.org/p/v8/issues/detail?id=7668
>
> Original change's description:
> > Reland "[heap] Move initial objects into RO_SPACE"
> >
> > This is a reland of f8ae62fe14
> >
> > Original change's description:
> > > [heap] Move initial objects into RO_SPACE
> > >
> > > This moves:
> > > * the main oddballs (null, undefined, hole, true, false) as well as
> > > their supporting maps (also adds hole as an internalized string to make
> > > this work).
> > > * most of the internalized strings
> > > * the struct maps
> > > * empty array
> > > * empty enum cache
> > > * the contents of the initial string table
> > > * the weak_cell_cache for any map in RO_SPACE (and eagerly creates the
> > > value avoid writing to it during run-time)
> > >
> > > The StartupSerializer stats change as follows:
> > >
> > >      RO_SPACE  NEW_SPACE  OLD_SPACE  CODE_SPACE  MAP_SPACE  LO_SPACE
> > > old         0          0     270264       32608      12144         0
> > > new     21776          0     253168       32608       8184         0
> > > Overall memory usage has increased by 720 bytes due to the eager
> > > initialization of the Map weak cell caches.
> > >
> > > Also extends --serialization-statistics to print out separate instance
> > > type stats for objects in RO_SPACE as shown here:
> > >
> > >   Read Only Instance types (count and bytes):
> > >        404      16736  ONE_BYTE_INTERNALIZED_STRING_TYPE
> > >          2         32  HEAP_NUMBER_TYPE
> > >          5        240  ODDBALL_TYPE
> > >         45       3960  MAP_TYPE
> > >          1         16  BYTE_ARRAY_TYPE
> > >          1         24  TUPLE2_TYPE
> > >          1         16  FIXED_ARRAY_TYPE
> > >          1         32  DESCRIPTOR_ARRAY_TYPE
> > >         45        720  WEAK_CELL_TYPE
> > >
> > > Bug: v8:7464
> > > Change-Id: I12981c39c82a7057f68bbbe03f89fb57b0b4c6a6
> > > Reviewed-on: https://chromium-review.googlesource.com/973722
> > > Commit-Queue: Dan Elphick <delphick@chromium.org>
> > > Reviewed-by: Hannes Payer <hpayer@chromium.org>
> > > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> > > Reviewed-by: Yang Guo <yangguo@chromium.org>
> > > Cr-Commit-Position: refs/heads/master@{#52435}
> >
> > Bug: v8:7464
> > Change-Id: I50427edfeb53ca80ec4cf46566368fb2213ccf7b
> > Reviewed-on: https://chromium-review.googlesource.com/999654
> > Commit-Queue: Dan Elphick <delphick@chromium.org>
> > Reviewed-by: Yang Guo <yangguo@chromium.org>
> > Reviewed-by: Hannes Payer <hpayer@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#52638}
>
> TBR=rmcilroy@chromium.org,yangguo@chromium.org,hpayer@chromium.org,mlippautz@chromium.org,delphick@chromium.org
>
> # Not skipping CQ checks because original CL landed > 1 day ago.
>
> Bug: v8:7464,v8:7668
> Change-Id: I10aa03623b51e997f95a3715ea9f0bf5d29d2cdb
> Reviewed-on: https://chromium-review.googlesource.com/1016600
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52667}

Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: If4b7490c8c4d31612de8ec132de334955a319b11
Bug: v8:7464, v8:7668
Reviewed-on: https://chromium-review.googlesource.com/1019020
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52689}
2018-04-19 13:54:32 +00:00
Leszek Swirski
0ce539033e [factory] Always tenure external strings
Since external strings are used for things like source strings, we
should tenure them from creation.

Change-Id: I226ab9036836d76d8c17ed168ad97d7f0f824278
Reviewed-on: https://chromium-review.googlesource.com/1006961
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52677}
2018-04-18 19:01:32 +00:00
Sigurd Schneider
cbcecc2ff3 [test] Add a simple repro for the referenced bug
Bug: v8:7659
Change-Id: Ib4a44eef02398482a969084f5004d6096e1fd979
Reviewed-on: https://chromium-review.googlesource.com/1017100
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52675}
2018-04-18 16:10:48 +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
Jakob Kummerow
2459046c1d [ubsan] Change Address typedef to uintptr_t
The "Address" type is V8's general-purpose type for manipulating memory
addresses. Per the C++ spec, pointer arithmetic and pointer comparisons
are undefined behavior except within the same array; since we generally
don't operate within a C++ array, our general-purpose type shouldn't be
a pointer type.

Bug: v8:3770
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ib96016c24a0f18bcdba916dabd83e3f24a1b5779
Reviewed-on: https://chromium-review.googlesource.com/988657
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52601}
2018-04-14 01:25:28 +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
Peter Marshall
eab5583aa9 [typedarray] Fix GetBuffer for 0-length off-heap typed arrays.
Fixes a crash that happens when calling postMessage on an empty typed
array.

GetBuffer should only call MaterializeArrayBuffer for on-heap buffers,
but the on-heap check is slightly wrong. This CL moves the on-heap check
logic to the JSTypedArray class so that other parts of the codebase
don't need to worry about how that is determined.

Also add some dchecks to materialize itself. It should only receive
on-heap buffers and should always transform them to off-heap buffers.
There is also no reason for it to be static, so change that here too.

Bug: chromium:797588
Change-Id: Icd88a5b68e424d82c9f1f7889ca42a40a72a1bdc
Reviewed-on: https://chromium-review.googlesource.com/995898
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52388}
2018-04-05 11:42:31 +00:00
jgruber
7b29fe434d Rename Code::instruction_{start,end,size} functions
In order to clarify the difference between, e.g., InstructionStart and
instruction_start, rename as follows:

Code::instruction_start -> raw_instruction_start
Code::instruction_end   -> raw_instruction_end
Code::instruction_size  -> raw_instruction_size

The difference between the camel-case and raw_* function families is
in how they handle off-heap-trampoline Code objects. For example, when
called on an off-heap-trampoline: raw_instruction_start returns the
trampoline's entry point, while InstructionStart returns the off-heap
code's entry point (located in the .text section of the binary).

Some callsites were updated to call the camel-case function family as
appropriate.

Bug: v8:6666
Change-Id: I4a572f47c2d161a853599d7c17879e263b0d1a87
Reviewed-on: https://chromium-review.googlesource.com/997532
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52387}
2018-04-05 11:39:32 +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