A test exercising the public APIs for wasm serialization and
simulates the serialization scenario - serialize in one isolate, deserialize
in another.
BUG=v8:5072
Review-Url: https://codereview.chromium.org/2249973002
Cr-Commit-Position: refs/heads/master@{#38644}
We only need these external v8 APIs to expose serialization externally,
so bypassed having an internal layer for now.
BUG=v8:5072
Review-Url: https://codereview.chromium.org/2228073002
Cr-Commit-Position: refs/heads/master@{#38516}
Drive-by-fix: mark isolates as const in stack-allocated scopes
BUG=chromium:630217
Review-Url: https://codereview.chromium.org/2220993003
Cr-Commit-Position: refs/heads/master@{#38496}
This new API function allows for setting several internal fields at once.
By avoiding crossing the API each time for setting an internal property we
can speed up the wrapper creation which has to set two fields for every new
object.
BUG=chromium:630217
Review-Url: https://codereview.chromium.org/2185963002
Cr-Commit-Position: refs/heads/master@{#38299}
Introduce a proper CodeStubAssembler::BranchIfToBooleanIsTrue helper
method, that branches to if_true/if_false labels depending on whether
the value that is passed would yield true or false when fed to
ToBoolean. Use this helper to implement the bytecode handlers w/o having
to materialize the temporary booleans and essentially branching twice.
The CodeStubAssembler::BranchIfToBooleanIsTrue helper favors the most
likely case of a Boolean constant now.
Also migrate the ToBooleanStub to a ToBoolean TurboFan builtin, that
also uses the helper method under the hood.
Remove the now obsolete Oddball::to_boolean field.
R=hpayer@chromium.org, rmcilroy@chromium.org, yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2151163002
Cr-Commit-Position: refs/heads/master@{#37849}
Original issue's description:
> Don't compile functions in a context the caller doesn't have access to
>
> Instead just return undefined
>
> A side effect of this is that it's no longer possible to compile
> functions in a detached context.
>
> BUG=chromium:541703
> R=verwaest@chromium.org,bmeurer@chromium.org
BUG=chromium:541703
R=verwaest@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng
Review-Url: https://codereview.chromium.org/2155503004
Cr-Commit-Position: refs/heads/master@{#37842}
When reading through the source code (v8.h) I found some minor typos
which I wanted to report.
BUG=
Review-Url: https://codereview.chromium.org/2130513002
Cr-Commit-Position: refs/heads/master@{#37835}
Reason for revert:
blink is unhappy about the microtask change
Original issue's description:
> Reland "Don't compile functions in a context the caller doesn't have access to"
>
> Original issue's description:
> > Don't compile functions in a context the caller doesn't have access to
> >
> > Instead just return undefined
> >
> > A side effect of this is that it's no longer possible to compile
> > functions in a detached context.
> >
> > BUG=chromium:541703
> > R=verwaest@chromium.org,bmeurer@chromium.org
>
> BUG=chromium:541703
> R=verwaest@chromium.org
>
> Committed: https://crrev.com/6bceabac5b705b2ce1f52d34650cea1ae3b8c617
> Cr-Commit-Position: refs/heads/master@{#37756}
TBR=verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:541703
Review-Url: https://codereview.chromium.org/2151843002
Cr-Commit-Position: refs/heads/master@{#37760}
Original issue's description:
> Don't compile functions in a context the caller doesn't have access to
>
> Instead just return undefined
>
> A side effect of this is that it's no longer possible to compile
> functions in a detached context.
>
> BUG=chromium:541703
> R=verwaest@chromium.org,bmeurer@chromium.org
BUG=chromium:541703
R=verwaest@chromium.org
Review-Url: https://codereview.chromium.org/2143893005
Cr-Commit-Position: refs/heads/master@{#37756}
Currently the code example in the FunctionTemplate class documentation
is out of date. This commit updates the examples so they compile and run
without error.
BUG=
Review-Url: https://codereview.chromium.org/2127523003
Cr-Commit-Position: refs/heads/master@{#37741}
Reason for revert:
Causes crashes on Canary
Original issue's description:
> Don't compile functions in a context the caller doesn't have access to
>
> Instead just return undefined
>
> A side effect of this is that it's no longer possible to compile
> functions in a detached context.
>
> BUG=chromium:541703
> R=verwaest@chromium.org,bmeurer@chromium.org
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng
>
> Committed: https://crrev.com/992e34c21635b179a993b82ac1d81753e7a6a57a
> Cr-Commit-Position: refs/heads/master@{#37657}
TBR=bmeurer@chromium.org,verwaest@chromium.org,jochen@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=chromium:541703, chromium:628053
Review-Url: https://codereview.chromium.org/2148163002
Cr-Commit-Position: refs/heads/master@{#37736}
Instead just return undefined
A side effect of this is that it's no longer possible to compile
functions in a detached context.
BUG=chromium:541703
R=verwaest@chromium.org,bmeurer@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng
Review-Url: https://codereview.chromium.org/2034083002
Cr-Commit-Position: refs/heads/master@{#37657}
Isolate is not going to retain a CPU profiler.
The client will be creating an instance of profiler when needed.
Deprectate v8::Isolate::GetCpuProfiler()
BUG=v8:4789
Review-Url: https://codereview.chromium.org/2117343006
Cr-Commit-Position: refs/heads/master@{#37613}
Such an object can be used to later create a context from it. It has to
have access checks with handlers enabled, as it cannot be accessed
otherwise.
BUG=chromium:618305
R=verwaest@chromium.org
Review-Url: https://codereview.chromium.org/2107673003
Cr-Commit-Position: refs/heads/master@{#37594}
This patch implements "immutable prototype exotic objects" from the ECMAScript
spec, which are objects whose __proto__ cannot be changed, but are not otherwise
frozen. They are introduced in order to prevent a Proxy from being introduced
to the prototype chain of the global object.
The API is extended by a SetImmutablePrototype() call in ObjectTemplate, which
can be used to vend new immutable prototype objects. Additionally, Object.prototype
is an immutable prototype object.
In the implementation, a new bit is added to Maps to say whether the prototype is
immutable, which is read by SetPrototype. Map transitions to the immutable prototype
state are not saved in the transition tree because the main use case is just for
the prototype chain of the global object, which there will be only one of per
Context, so no need to take up the extra word for a pointer in each full transition
tree.
BUG=v8:5149
Review-Url: https://codereview.chromium.org/2108203002
Cr-Commit-Position: refs/heads/master@{#37482}
This part of the snapshot API should not be in use yet, so we can still
change this. The motivation for this change is:
- Use MaybeHandle where reasonable.
- Remove ambiguity: when we use index to create context from snapshot,
we should not have a silent fallback if snapshot is not available.
- Symmetry: rename to Context::FromSnapshot to mirror templates.
R=jochen@chromium.org
BUG=chromium:617892
Review-Url: https://codereview.chromium.org/2100073002
Cr-Commit-Position: refs/heads/master@{#37334}
We deviate from spec in that, in our implementation, __defineGetter__ on non-
configurable properties returns false instead of throwing a TypeError. This commit
adds a use counter to track how often we would be throwing an error we currently
avoid, to determine if we can change to align with spec or if the spec is not
implementable.
BUG=v8:5070
Review-Url: https://codereview.chromium.org/2089533002
Cr-Commit-Position: refs/heads/master@{#37259}
Base the fast-path in AdjustAmountOfExternalMemory on a value + limit. To
preserve the behavior the limit is just set using kExternalAllocationLimit.
Redo naming of related members.
R=jochen@chromium.org
BUG=chromium:621829
LOG=N
Review-Url: https://codereview.chromium.org/2085893002
Cr-Commit-Position: refs/heads/master@{#37131}
I need this method because of ActiveScriptWrappables, which have to be processed
at the atomic pause even for incremental solution, as there is no other way of
detecting when an object starts or stops being active than querying it.
LOG=no
BUG=468240
Review-Url: https://codereview.chromium.org/2065833003
Cr-Commit-Position: refs/heads/master@{#37062}
With cl https://codereview.chromium.org/2043033002 blink will add new wrappers
to its marking deque (and maintain this deque) so black allocated wrappers are
not a problem anymore. To limit the scope of when blink has to detect wrappers,
we need to tell blink when we start and when we end full gcs. For that we can
nicely use TracePrologue and TraceEpilogue.
LOG=no
BUG=468240
Review-Url: https://codereview.chromium.org/2051103002
Cr-Commit-Position: refs/heads/master@{#36937}
In order to update v8 api and still be able to build chromium, we had to keep
code in suboptimal state. Now when chromium caught up, we can perform cleanup :)
LOG=no
BUG=468240
Review-Url: https://codereview.chromium.org/2057613002
Cr-Commit-Position: refs/heads/master@{#36933}
Reason for revert:
Make MSAN arm bot flaky
Original issue's description:
> Move stack trace extraction code out of TickSample::Init
>
> Make it a part of V8 API GetStackSample function.
> Also expose external_callback_entry in SampleInfo to break dependency
> of clients on internal V8 structures.
>
> BUG=v8:4789
>
> Committed: https://crrev.com/70acfe39c07322144f5fe9b40bb584a8b1099ffd
> Cr-Commit-Position: refs/heads/master@{#36831}
TBR=yangguo@chromium.org,lpy@chromium.org,jochen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4789
Review-Url: https://codereview.chromium.org/2049903002
Cr-Commit-Position: refs/heads/master@{#36835}
Make it a part of V8 API GetStackSample function.
Also expose external_callback_entry in SampleInfo to break dependency
of clients on internal V8 structures.
BUG=v8:4789
Review-Url: https://codereview.chromium.org/2007343003
Cr-Commit-Position: refs/heads/master@{#36831}
This allows using icu data, bundled in the icudtl.dat file,
to be loaded automatically from a default location
side-by-side with the executable.
The v8 stand-alone default is still to use statically
linked ICU data, but this will be switched in a separate
follow-up CL.
BUG=chromium:616033
LOG=y
Review-Url: https://codereview.chromium.org/2042253002
Cr-Commit-Position: refs/heads/master@{#36823}
backing store.
Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
are processed by the sweeper concurrently.
BUG=chromium:611688
LOG=N
TEST=cctest/test-array-buffer-tracker/*
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
Review-Url: https://codereview.chromium.org/2036643002
Cr-Commit-Position: refs/heads/master@{#36798}
This cl sketches an api for incremental wrapper tracing, but still uses the api
in the stop-the-world fashion. Responsibility to maintain a marking deque is
transfered to the embedder. V8 will still collect wrapper internal fields, but
will send them to the embedder after each incremental gc task. Wrappers must be
sent at latest by the time next oilpan gc runs - so blink can keep all
discovered wrappables alive.
The old api will be cleared after this cl and corresponding blink cl land.
Comments are very welcomed :)
LOG=no
BUG=468240
Review-Url: https://codereview.chromium.org/2032213003
Cr-Commit-Position: refs/heads/master@{#36761}
Reason for revert:
Also failing with the new implementation:
https://build.chromium.org/p/chromium.gpu/builders/Linux%20Debug%20%28NVIDIA%29/builds/62646
Will do a local repro now.
Original issue's description:
> Track based on JSArrayBuffer addresses on pages instead of the attached
> backing store.
>
> Details of tracking:
> - Scavenge: New space pages are processes in bulk on the main thread
> - MC: Unswept pages are processed in bulk in parallel. All other pages
> are processed by the sweeper concurrently.
>
> BUG=chromium:611688
> LOG=N
> TEST=cctest/test-array-buffer-tracker/*
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
>
> Committed: https://crrev.com/279e274eccf95fbb4bd41d908b9153acf6ec118a
> Cr-Commit-Position: refs/heads/master@{#36653}
TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:611688
Review-Url: https://codereview.chromium.org/2032973002
Cr-Commit-Position: refs/heads/master@{#36663}
backing store.
Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
are processed by the sweeper concurrently.
BUG=chromium:611688
LOG=N
TEST=cctest/test-array-buffer-tracker/*
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
Review-Url: https://codereview.chromium.org/2026633003
Cr-Commit-Position: refs/heads/master@{#36653}
Reason for revert:
Breaking
http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20avx2/builds/7972
Original issue's description:
> Track based on JSArrayBuffer addresses on pages instead of the attached
> backing store.
>
> Details of tracking:
> - Scavenge: New space pages are processes in bulk on the main thread
> - MC: Unswept pages are processed in bulk in parallel. All other pages
> are processed by the sweeper concurrently.
>
> BUG=chromium:611688
> LOG=N
> TEST=cctest/test-array-buffer-tracker/*
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
>
> Committed: https://crrev.com/089da007bb990b5b29aab257aa836fdd3f3b8ce0
> Cr-Commit-Position: refs/heads/master@{#36608}
TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:611688
Review-Url: https://codereview.chromium.org/2028503003
Cr-Commit-Position: refs/heads/master@{#36609}
backing store.
Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
are processed by the sweeper concurrently.
BUG=chromium:611688
LOG=N
TEST=cctest/test-array-buffer-tracker/*
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
Review-Url: https://codereview.chromium.org/2024063002
Cr-Commit-Position: refs/heads/master@{#36608}
Expose more or less the full functionality of the KeyAccumulator in the API:
- use the PropertyFilter introduced for GetOwnPropertyNames
- use KeyCollectionLimit for OWN_ONLY or INLCUDE_PROTOS
- use IndexFilter to eithe SKIP_INDICES or INCLUDE_INDICES
Rewire Object::GetOwnPropertyNames to use GetPropertyNames.
BUG=chromium:148757
Review-Url: https://codereview.chromium.org/2002203002
Cr-Commit-Position: refs/heads/master@{#36595}
Users of this api should use a combination of |RequestInterrupt| and
|GCCallback| (see |AddGCPrologueCallback| and friends) to keep track allocated
memory.
BUG=v8:4813
LOG=Y
R=jochen@chromium.org
Review-Url: https://codereview.chromium.org/1991293002
Cr-Commit-Position: refs/heads/master@{#36594}
Reason for revert:
Investigating new arm simulator failure:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm%20-%20sim/builds/851/steps/Check%20-%20novfp3/logs/box2d
Original issue's description:
> Reland "[heap] Fine-grained JSArrayBuffer tracking"
>
> Track based on JSArrayBuffer addresses on pages instead of the attached
> backing store.
>
> Details of tracking:
> - Scavenge: New space pages are processes in bulk on the main thread
> - MC: Unswept pages are processed in bulk in parallel. All other pages
> are processed by the sweeper concurrently.
>
> BUG=chromium:614730, chromium:611688
> LOG=N
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
>
> Committed: https://crrev.com/bc0fb6e83eb7351f52bfd6f780bb6c12bd87c58c
> Cr-Commit-Position: refs/heads/master@{#36592}
TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:614730, chromium:611688
Review-Url: https://codereview.chromium.org/2021893002
Cr-Commit-Position: refs/heads/master@{#36593}
Track based on JSArrayBuffer addresses on pages instead of the attached
backing store.
Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
are processed by the sweeper concurrently.
BUG=chromium:614730, chromium:611688
LOG=N
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
Review-Url: https://codereview.chromium.org/2026463002
Cr-Commit-Position: refs/heads/master@{#36592}
Adds an API to request the total size of code/bytecode and their associated
metadata in the heap. When requested, the code_space, old_space and
large_object_space is scanned to find any code/bytecode array objects.
This could be slow and hence it should be used with caution.
BUG=v8:5019
LOG=N
Review-Url: https://codereview.chromium.org/1997363002
Cr-Commit-Position: refs/heads/master@{#36534}
This patch does five things:
1. Extracts sampler as libsampler to provide sampling functionality support.
2. Makes SampleStack virtual so embedders can override the behaviour of sample collecting.
3. Removes sampler.[h|cc].
4. Moves sampling thread into log.cc as workaround to keep the --prof functionality.
5. Creates SamplerManager to manage the relationship between samplers and threads.
The reason we port hashmap.h is that in debug mode, STL containers are using
mutexes from a mutex pool, which may lead to deadlock when using asynchronously
signal handler.
Currently libsampler is used in V8 temporarily.
BUG=v8:4789
LOG=n
Committed: https://crrev.com/06cc9b7c176a6223971deaa9fbcafe1a05058c7b
Cr-Commit-Position: refs/heads/master@{#36527}
Review-Url: https://codereview.chromium.org/1922303002
Cr-Commit-Position: refs/heads/master@{#36532}
Reason for revert:
Premature revert. Chromium roll included an earlier version.
Original issue's description:
> Revert of "[heap] Fine-grained JSArrayBuffer tracking" (patchset #3 id:80001 of https://codereview.chromium.org/2007253002/ )
>
> Reason for revert:
> Breaks webgl2 conformance tests
> https://bugs.chromium.org/p/chromium/issues/detail?id=614730
>
> Original issue's description:
> > Reland of "[heap] Fine-grained JSArrayBuffer tracking"
> >
> > Track based on JSArrayBuffer addresses on pages instead of the attached
> > backing store.
> >
> > Details of tracking:
> > - Scavenge: New space pages are processes in bulk on the main thread
> > - MC: Unswept pages are processed in bulk in parallel. All other pages
> > are processed by the sweeper concurrently.
> >
> > This reverts commit 93fe04afa9.
> >
> > R=hpayer@chromium.org
> > BUG=chromium:611688
> > LOG=N
> > CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
> >
> > Committed: https://crrev.com/863d015e573798e263b35b31d2ab979739706533
> > Cr-Commit-Position: refs/heads/master@{#36513}
>
> TBR=hpayer@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:611688
>
> Committed: https://crrev.com/b9b0868ec49a52c9a80c9beea862a61707b292e5
> Cr-Commit-Position: refs/heads/master@{#36524}
TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:611688
Review-Url: https://codereview.chromium.org/2009383002
Cr-Commit-Position: refs/heads/master@{#36530}
Reason for revert:
V8 Linux64 TSAN failure because ThreadSanitizer indicated data race.
Original issue's description:
> Create libsampler as V8 sampler library.
>
> This patch does five things:
>
> 1. Extracts sampler as libsampler to provide sampling functionality support.
> 2. Makes SampleStack virtual so embedders can override the behaviour of sample collecting.
> 3. Removes sampler.[h|cc].
> 4. Moves sampling thread into log.cc as workaround to keep the --prof functionality.
> 5. Creates SamplerManager to manage the relationship between samplers and threads.
>
> The reason we port hashmap.h is that in debug mode, STL containers are using
> mutexes from a mutex pool, which may lead to deadlock when using asynchronously
> signal handler.
>
> Currently libsampler is used in V8 temporarily.
>
> BUG=v8:4789
> LOG=n
>
> Committed: https://crrev.com/06cc9b7c176a6223971deaa9fbcafe1a05058c7b
> Cr-Commit-Position: refs/heads/master@{#36527}
TBR=jochen@chromium.org,alph@chromium.org,fmeawad@chromium.org,yangguo@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4789
Review-Url: https://codereview.chromium.org/2000323007
Cr-Commit-Position: refs/heads/master@{#36529}
This patch does five things:
1. Extracts sampler as libsampler to provide sampling functionality support.
2. Makes SampleStack virtual so embedders can override the behaviour of sample collecting.
3. Removes sampler.[h|cc].
4. Moves sampling thread into log.cc as workaround to keep the --prof functionality.
5. Creates SamplerManager to manage the relationship between samplers and threads.
The reason we port hashmap.h is that in debug mode, STL containers are using
mutexes from a mutex pool, which may lead to deadlock when using asynchronously
signal handler.
Currently libsampler is used in V8 temporarily.
BUG=v8:4789
LOG=n
Review-Url: https://codereview.chromium.org/1922303002
Cr-Commit-Position: refs/heads/master@{#36527}
Reason for revert:
Breaks webgl2 conformance tests
https://bugs.chromium.org/p/chromium/issues/detail?id=614730
Original issue's description:
> Reland of "[heap] Fine-grained JSArrayBuffer tracking"
>
> Track based on JSArrayBuffer addresses on pages instead of the attached
> backing store.
>
> Details of tracking:
> - Scavenge: New space pages are processes in bulk on the main thread
> - MC: Unswept pages are processed in bulk in parallel. All other pages
> are processed by the sweeper concurrently.
>
> This reverts commit 93fe04afa9.
>
> R=hpayer@chromium.org
> BUG=chromium:611688
> LOG=N
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
>
> Committed: https://crrev.com/863d015e573798e263b35b31d2ab979739706533
> Cr-Commit-Position: refs/heads/master@{#36513}
TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:611688
Review-Url: https://codereview.chromium.org/2011563003
Cr-Commit-Position: refs/heads/master@{#36524}
Track based on JSArrayBuffer addresses on pages instead of the attached
backing store.
Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
are processed by the sweeper concurrently.
This reverts commit 93fe04afa9.
R=hpayer@chromium.org
BUG=chromium:611688
LOG=N
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
Review-Url: https://codereview.chromium.org/2007253002
Cr-Commit-Position: refs/heads/master@{#36513}
Track based on JSArrayBuffer addresses on pages instead of the attached
backing store.
Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
are processed by the sweeper concurrently.
This reverts commit d2dff0320b.
R=hpayer@chromium.org
BUG=chromium:611688
LOG=N
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
Review-Url: https://codereview.chromium.org/2005723005
Cr-Commit-Position: refs/heads/master@{#36495}
Reason for revert:
Revert it.
Original issue's description:
> [heap] Fine-grained JSArrayBuffer tracking
>
> Track based on JSArrayBuffer addresses instead of the attached backing store.
> This way we can later on iterate buffers on a single page. The reland also
> switches to a page-based implementation where a page contains the set of its
> contained (live and dead) buffers.
>
> Details of tracking:
> - Scavenge: New space pages are processes in bulk on the main thread
> - MC: Unswept pages are processed in bulk in parallel. All other pages
> are processed by the sweeper concurrently.
>
> BUG=chromium:611688
> LOG=N
> CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
>
> Committed: https://crrev.com/b2d8bfc7931eef49d527605ba485950dea41cde3
> Cr-Commit-Position: refs/heads/master@{#36437}
TBR=hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:611688
Review-Url: https://codereview.chromium.org/2006183003
Cr-Commit-Position: refs/heads/master@{#36461}
Track based on JSArrayBuffer addresses instead of the attached backing store.
This way we can later on iterate buffers on a single page. The reland also
switches to a page-based implementation where a page contains the set of its
contained (live and dead) buffers.
Details of tracking:
- Scavenge: New space pages are processes in bulk on the main thread
- MC: Unswept pages are processed in bulk in parallel. All other pages
are processed by the sweeper concurrently.
BUG=chromium:611688
LOG=N
CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_arm64_gc_stress_dbg,v8_linux_gc_stress_dbg,v8_mac_gc_stress_dbg,v8_linux64_tsan_rel,v8_mac64_asan_rel
Review-Url: https://codereview.chromium.org/1964023002
Cr-Commit-Position: refs/heads/master@{#36437}
Handles of this type are automatically reset by the garbage collector
when their objects are not longer reachable.
The motivation is to reduce pause time of external.weak_global_handles
phase of the garbage collector by not maintaing the list of pending
callbacks and not calling the callbacks.
Local testing on discourse page of the v8.inifinite_scroll benchmark
shows 7x improvement for this GC phase.
Before:
external.weak_global_handles
len: 21
min: 0.0
max: 4.5
avg: 0.757142857143
After:
external.weak_global_handles
len: 21
min: 0.0
max: 0.5
avg: 0.109523809524
A follow-up patch will enable the new phantom handles in Chromium.
BUG=chromium:608333
LOG=NO
Review-Url: https://codereview.chromium.org/1950963002
Cr-Commit-Position: refs/heads/master@{#36095}
This removes:
- PersistentBase::SetWeak that takes WeakCallbackData.
The embedders should use the version that takes WeakCallbackInfo.
- PersistentBase::SetPhantom.
The embedders should SetWeak that takes WeakCallbackInfo.
Functions in DefaultPersistentValueMapTraits are changed to accept
WeakCallbackInfo instead of WeakCallbackData.
BUG=chromium:609808
LOG=NO
Review-Url: https://codereview.chromium.org/1953263002
Cr-Commit-Position: refs/heads/master@{#36079}
This method provides ability to get all properties of the object with passed filter in addition to existing GetOwnPropertyNames(context) method that returns only enumerable properties.
BUG=v8:3861,chromium:581495
R=yangguo@chromium.org
LOG=Y
Review-Url: https://codereview.chromium.org/1943773002
Cr-Commit-Position: refs/heads/master@{#36031}
It is already effectively disabled by --scavenge_reclaim_unmodified_objects.
BUG=
Review-Url: https://codereview.chromium.org/1944793002
Cr-Commit-Position: refs/heads/master@{#36018}
This is needed by Blink to implement the Custom Elements spec.
BUG=v8:4261
LOG=y
Review-Url: https://codereview.chromium.org/1910253005
Cr-Commit-Position: refs/heads/master@{#35833}
The Oddball::to_number_raw field contains the actual double value of the
Oddball converted to a number, and is located at the same offset as the
HeapNumber::value field, so for lowering changes we don't need to check
for undefined (or any other oddball explicitly).
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1922443002
Cr-Commit-Position: refs/heads/master@{#35753}
As the code on the blink side sits down, we realize we don't need isolate arg
anymore. As the heap tracer is set per isolate, it can actually be confusing if
the isolate passed as argument is always the same as the isolate the heap tracer
was set for. Wdyt?
BUG=468240
LOG=no
Review URL: https://codereview.chromium.org/1900953003
Cr-Commit-Position: refs/heads/master@{#35620}
Reason for revert:
node.js is updated now
Original issue's description:
> Revert of [api] Restrict Template::Set to take templates or primitive values (patchset #1 id:1 of https://codereview.chromium.org/1839983002/ )
>
> Reason for revert:
> Breaks node.js
>
> Original issue's description:
> > [api] Restrict Template::Set to take templates or primitive values
> >
> > Embedders that passed in non-primitive values should either use
> > getters/setters (templates) or install a native data property,
> > otherwise, the values would all result in cross-context leaks
> >
> > BUG=none
> > R=verwaest@chromium.org
> > LOG=y
> >
> > Committed: https://crrev.com/eebdee8eafa97849cc70c25f3fecf1b075bac248
> > Cr-Commit-Position: refs/heads/master@{#35244}
>
> TBR=verwaest@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=none
>
> Committed: https://crrev.com/e1674a24ca3cb92bb4e58d368b25767bd61a0dfa
> Cr-Commit-Position: refs/heads/master@{#35264}
TBR=verwaest@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=none
Review URL: https://codereview.chromium.org/1894993002
Cr-Commit-Position: refs/heads/master@{#35572}
PersistentValueMap is used to hold per-world wrappers in the blink. Currently,
when we trace wrappers, we visit wrappers in all worlds via this PersistentValueMap. This cl introduces convenient (and faster) way of registering these external references.
BUG=468240
LOG=no
Review URL: https://codereview.chromium.org/1883043003
Cr-Commit-Position: refs/heads/master@{#35523}
To keep track of memory characteristics of a JS program use
GetHeapSpaceStatistics from a combination of
- a GC epilogue callback registered using AddGCEpilogueCallback
- an interrupt registered using RequestInterrupt
Rationale:
The feature is currently broken as those callbacks are (also) executed from
background threads, breaking our implicit contract for only performing callbacks
on the foreground thread. Furhtermore, it's not clear for the embedder whether
these allocations originate in JS, or are required for a GC.
Note:
- The already deprecated non-isolate versions are removed with this CL.
R=jochen@chromium.org
BUG=v8:4813
LOG=Y
Review URL: https://codereview.chromium.org/1886573006
Cr-Commit-Position: refs/heads/master@{#35474}
When the embedder sets the heap tracer, V8, during marking, will collect all reachable wrappers, and then ask embedder to trace its heap. The embedder is expected to call PersistentBase::RegisterExternalReference with all wrappers reachable from the given ones. This fixed point iteration happens in MarkCompact::ProcessEphemeralMarking.
For more efficient object visiting during marking, we need a special JS_API_OBJECT_TYPE (in tandem with already existing JS_SPECIAL_API_OBJECT_TYPE) and corresponding visitor (JSApiObjectVisitor).
BUG=chromium:468240
LOG=no
Review URL: https://codereview.chromium.org/1844413002
Cr-Commit-Position: refs/heads/master@{#35412}
This is a convenience API that an embedder can use to do final checks on
the return value. Note that this creates a new handle and thus defeats
the performance optimization done for ReturnValue - an embedder should
only use this in non-performance critical code paths.
BUG=
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/1875263003
Cr-Commit-Position: refs/heads/master@{#35409}
The previous code cache system required stubs to be marked with a StubType, causing them to be inserted either into a fixed array or into a dictionary-mode code cache. This could cause names to be in both cases, and lookup would just find the "fast" one first. Given that we clear out the caches on each GC, the memory overhead shouldn't be too bad. Additionally, the dictionary itself should just stay linear for small arrays; that's faster anyway.
This CL additionally deletes some dead IC code.
BUG=
Review URL: https://codereview.chromium.org/1846963002
Cr-Commit-Position: refs/heads/master@{#35291}
Reason for revert:
Breaks node.js
Original issue's description:
> [api] Restrict Template::Set to take templates or primitive values
>
> Embedders that passed in non-primitive values should either use
> getters/setters (templates) or install a native data property,
> otherwise, the values would all result in cross-context leaks
>
> BUG=none
> R=verwaest@chromium.org
> LOG=y
>
> Committed: https://crrev.com/eebdee8eafa97849cc70c25f3fecf1b075bac248
> Cr-Commit-Position: refs/heads/master@{#35244}
TBR=verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none
Review URL: https://codereview.chromium.org/1860003002
Cr-Commit-Position: refs/heads/master@{#35264}
Embedders that passed in non-primitive values should either use
getters/setters (templates) or install a native data property,
otherwise, the values would all result in cross-context leaks
BUG=none
R=verwaest@chromium.org
LOG=y
Review URL: https://codereview.chromium.org/1839983002
Cr-Commit-Position: refs/heads/master@{#35244}
We expect that the majority of malloc'd memory held by V8 is allocated
in Zone objects. Introduce an Allocator class that is used by Zones to
manage memory, and allows for querying the current usage.
BUG=none
R=titzer@chromium.org,bmeurer@chromium.org,jarin@chromium.org
LOG=n
TBR=rossberg@chromium.org
Review URL: https://codereview.chromium.org/1847543002
Cr-Commit-Position: refs/heads/master@{#35196}
Change x64 to use the external references like all other platforms.
BUG=chromium:581076
LOG=N
Review URL: https://codereview.chromium.org/1844283002
Cr-Commit-Position: refs/heads/master@{#35160}
