This is a reland of b6fb27077d.
Unchanged reland, TSan issue were fixed in https://crrev.com/c/1593340
and https://crrev.com/c/1594553.
Original change's description:
> [wasm][gc] Free WasmCode objects
>
> This adds the next step to freeing code: We free the actual C++
> {WasmCode} objects. This will cause UAF if any C++ code uses stale
> references.
> The underlying machine code will still not be freed.
>
> For simplicity, this CL changes the vector of owned_code to an ordered
> set, such that lookup and removal is much simpler. The drawback is that
> insertion is now more expensive.
>
> R=mstarzinger@chromium.org
>
> Bug: v8:8217
> Change-Id: I07fc81167816637fbaad6c06ff79e3f952f2fde8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593080
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61165}
TBR=mstarzinger@chromium.org
Bug: v8:8217
Change-Id: I809832bb609663d794c7aafcf071823db7fb6212
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594436
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61215}
Keep the existing method for compatibility, by converting
to json from CBOR using the inspector_protocol_encoding library,
via a v8 specific interface library that directs routines for
converting between strings and doubles to v8's implementations.
This change also brings in the encoding.h / encoding.cc files from the
upstream inspector_protocol project. The only modification here
are the header guards, and the namespace. I will fix roll.py to
make it so that we pick up future changes.
third_party/inspector_protocol/BUILD.gn is specific to v8, by necessity.
third_party/inspector_protocol/.clang-format is a copy of the upstream
file. If we don't put this, we'll find ourselves auto-formatting the roll,
which is annoying.
This is a reland of
https://chromium-review.googlesource.com/c/v8/v8/+/1590627 with the
only modification in the DEPS file; this time I'm including
third_party/inspector_protocol/encoding/encoding{.h,cc} in addition to
the relative include there. Not sure why this is needed but I'm hoping
it gets me past the presubmit which may resolve the include path
relative to the V8 base (the ../../third_party is needed for when V8 is
embedded into Chromium).
Change-Id: Ic76b2b5faa7e1cbdceb15aff3f369e9a303e3e85
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593646
Reviewed-by: Alexei Filippov <alph@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61214}
This adds either %EnsureFeedbackVectorForFunction or
%PrepareFunctionForOptimization to allocate feedback vectors when testing
optimization, allocation sites, IC transitions etc.,
Bug: v8:8394
Change-Id: I6ad1b6d460e4abda693b326cddb87754e080a0a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593303
Commit-Queue: Mythri Alle <mythria@chromium.org>
Auto-Submit: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61212}
CodeBuilder was calling AllocateRawWithLightRetry when it should have been
calling AllocateRawWithRetryOrFail (and vice versa).
Also improved variable naming.
Bug: chromium:957934
Change-Id: I03a95165f6d5b44c1f47d08d338d48bcc37c6d04
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1590075
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61210}
Based on Primiano's prototype:
https://chromium-review.googlesource.com/c/v8/v8/+/1290549
This is still behind a build flag. I'll add functionality incrementally
rather than land everything in one giant CL.
This CL sets up the basic classes that will be used for the Perfetto
implementation, e.g. the producer, consumer, controller and task runner.
This implementation produces a binary proto file in the current
directory named v8_trace.proto. It doesn't yet produce JSON output,
that is coming in a following CL.
Currently the old tracing and perfetto tracing are both run alongside
each other if the build flag is enabled.
Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: I0eb9ecefa191ceead60aadd5b591d75c99395a6e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1408995
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61209}
Both MSVC and Clang require a mainCRTStartup symbol for the cctest
executable to compile. All objects from the cctest_sources source
set are bundled into a library which does not contain this symbol.
Bug: v8:7854
Change-Id: I88cd26209114daa84574e3b20046613b1560fa98
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1357039
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61206}
TSan reports errors if one thread changes the ref count using relaxed
semantics, then another thread frees the code object. Acquire-release
semantics fix this, as they impose an ordering between the memory
accesses of different threads.
R=mstarzinger@chromium.org
Bug: v8:8217, v8:9200
Change-Id: I30ce150154e6459c2c64e16be603f29187af1dcd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594553
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61205}
Between determining the set of wasm code objects to free, and actually
freeing them, we should not give up the mutex of the wasm engine.
Otherwise, a NativeModule can die in-between, and we would access a
stale pointer.
This fixes some flakes seen on the TSan bots with --stress-wasm-code-gc.
R=mstarzinger@chromium.org
Bug: v8:8217, v8:9200
Change-Id: Iad5b47379b5be6269180094cfeb2a2f2dfefb425
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593340
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61204}
Fix function name in error messages thrown by the streaming API. The API
functions {WebAssembly.compileStreaming} and
{WebAssembly.instantiateStreaming} are now mentioned where needed.
Bug: v8:9184
Change-Id: I70b27efe1c027d119fa7b5b9be27988a92304682
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1588468
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Frederik Gossen <frgossen@google.com>
Cr-Commit-Position: refs/heads/master@{#61202}
... from JSNativeContextSpecialization.
Bug: v8:9197
Change-Id: I332ba27e78b0c10b3406cf39e9a2178c8c74fede
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593339
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61201}
Bug: v8:9197
Change-Id: If72dbf1507f68fa344db389c08ad8614bca6667e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593337
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61199}
This new function forwards to v8::Object::CreationContext but has
special handling for JSGlobalProxy objects to prevent the former from
crashing.
R=yangguo@chromium.org
Bug: chromium:952057
Change-Id: I5ade682976efd1724c13f52b468e4fb30bb9ade7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1569425
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61197}
This CL adds decoding and code generation for the table.size
instruction.
R=mstarzinger@chromium.org
Bug: v8:7581
Change-Id: I0e689a993d25db72281ebba0854454be12f4d350
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593302
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61195}
This reverts commit a87a971b7e.
Reason for revert: required for revert of
bbd740f038
Original change's description:
> [runtime] Inline SeqOneByteSubStringKey IsMatch and AsHandle
>
> The performance actually matters to JSON parsing and this improves it by a % or
> 2.
>
> In the longer run we should probably share the IsMatch implementation in
> StringTableKey directly and call a virtual GetBytes on the key implementation.
>
> Change-Id: I838a106f9c8c52f0385057a52a8c0b9141ae025b
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1589977
> Commit-Queue: Toon Verwaest <verwaest@chromium.org>
> Auto-Submit: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61183}
TBR=ishell@chromium.org,verwaest@chromium.org
Change-Id: I8797310ef7834c04b44c735ce60813e3fb596013
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594440
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61193}
This CL add decoding and code generation for the table.grow
instruction. For code generation we just generate a runtime
call. The implementation is quite straight-forward. However,
I did several small cleanups along the way. I hope it's still
acceptable. I could also split out some cleanups into separate
CLs.
R=mstarzinger@chromium.org
Bug: v8:7581
Change-Id: Id885b7e70eb4f5bccfe779eb216f7cc9302ea3a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593078
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61192}
The script still works with Python 2.
There are no intended behaviour changes.
Bug: chromium:941669
Change-Id: I5ec63564fdb29a326c64d6ac7465f86b30ef16c1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1585857
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Auto-Submit: Raul Tambre <raul@tambre.ee>
Cr-Commit-Position: refs/heads/master@{#61191}
This reverts commit b7134d3af6.
Reason for revert: breaks presubmit
Original change's description:
> [DevTools] Add V8InspectorSession::state(), which returns binary (CBOR).
>
> Keep the existing method for compatibility, by converting
> to json from CBOR using the inspector_protocol_encoding library,
> via a v8 specific interface library that directs routines for
> converting between strings and doubles to v8's implementations.
>
> This change also brings in the encoding.h / encoding.cc files from the
> upstream inspector_protocol project. The only modification here
> are the header guards, and the namespace. I will fix roll.py to
> make it so that we pick up future changes.
>
> third_party/inspector_protocol/BUILD.gn is specific to v8, by necessity.
> third_party/inspector_protocol/.clang-format is a copy of the upstream
> file. If we don't put this, we'll find ourselves auto-formatting the roll,
> which is annoying.
>
> Change-Id: I20fa8759164e7a39f8a7c30e0d2a3f8a7e4be227
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1590627
> Reviewed-by: Alexei Filippov <alph@chromium.org>
> Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
> Commit-Queue: Johannes Henkel <johannes@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61187}
TBR=dgozman@chromium.org,alph@chromium.org,caseq@chromium.org,johannes@chromium.org
Change-Id: I67f297ef8454499036c94bf88e0d23657a579140
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1592130
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61189}
Various small changes are required to enable this.
HeapObject::GetReadOnlyRoots no longer uses the Space's heap when
possible (see comment in ReadOnlyHeap::GetReadOnlyRoots definition).
This requires that ReadOnlyRoots be construct-able using a raw pointer
to the read-only space's roots array.
Global read-only heap state is now cleared by tests where appropriate
and extra DCHECKs in ReadOnlyHeap::SetUp should make catching future
issues easier.
String padding is now always cleared just before read-only space is
sealed when not deserializing.
Change-Id: I7d1db1c11567be5df06ff7066f3a699125f8b372
Bug: v8:7464
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1535830
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61188}
Keep the existing method for compatibility, by converting
to json from CBOR using the inspector_protocol_encoding library,
via a v8 specific interface library that directs routines for
converting between strings and doubles to v8's implementations.
This change also brings in the encoding.h / encoding.cc files from the
upstream inspector_protocol project. The only modification here
are the header guards, and the namespace. I will fix roll.py to
make it so that we pick up future changes.
third_party/inspector_protocol/BUILD.gn is specific to v8, by necessity.
third_party/inspector_protocol/.clang-format is a copy of the upstream
file. If we don't put this, we'll find ourselves auto-formatting the roll,
which is annoying.
Change-Id: I20fa8759164e7a39f8a7c30e0d2a3f8a7e4be227
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1590627
Reviewed-by: Alexei Filippov <alph@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61187}
On Windows, expanding the stack by more than 4 KB at a time can cause
access violations. This change fixes a few known cases (and includes
unit tests for those), and attempts to make stack expansion more
consistent overall by using the AllocateStackSpace helper method
everywhere we can, even when the offset is a small constant.
On arm64, there was already a consistent method for stack pointer
manipulation using the Claim and Drop methods, so Claim is updated to
touch every page.
Bug: v8:9017
Change-Id: I2dbbceeebbdefaf45803e9b621fe83f52234a395
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1570666
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61186}
Code relocation info is now always allocated in old-space. Before relocation
info allocated for placeholders and builtins (which get replaced with
trampolines in nosnap builds) would become unreachable. Since read-only space
is not GCed and ReadOnlyHeapIterator doesn't check for reachability,
ValidateSnapshot would fail finding unreachable objects returned by
ReadOnlyHeapIterator.
Because trampoline relocation info gets replaced with canonical one, this only
affects no-embdded-builtins nosnap builds, which don't get much benefit from
read-only relocation info anyway.
A new check has been added to the read-only deserializer to verify that every
read-only object is reachable at mksnapshot-time.
The CombinedHeapIterator iteration order was changed to iterate over
read-only space first, because that's how HeapIterator worked.
This is a reland of 3d1d8eae77
Original change's description:
> [heap] Skip ro-space from heap iterators, add CombinedHeapIterator.
>
> Read-only space sharing requires an iterator independent of heap. This
> also enables future removal of read-only space from heap.
>
> Bug: v8:7464
> Change-Id: Ia07a9369494ea2c547d12c01ffa1d7b8b6bbeabc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552795
> Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60819}
Bug: v8:7464
Change-Id: I49ae070955b77956962334a84f762ab29052d5ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1566513
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Cr-Commit-Position: refs/heads/master@{#61185}
The registry right now has no users. In a follow-up CL I will
remove the skip list for code pages and make users of the skip
list use the registry.
Bug: v8:9093
Change-Id: I23a2b9e0d4158e2ffa89626e71f58d3bb5a41201
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593074
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61184}
The performance actually matters to JSON parsing and this improves it by a % or
2.
In the longer run we should probably share the IsMatch implementation in
StringTableKey directly and call a virtual GetBytes on the key implementation.
Change-Id: I838a106f9c8c52f0385057a52a8c0b9141ae025b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1589977
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61183}
This ensures that the parent class' field 'elements' is not shadowed.
Bug: v8:9194
Change-Id: Ibb53dedc0205cbb4c61e810e2d5822a94843c605
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593076
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61181}
This is the first CL that aims to eliminate the straggler tagged loads and
stores.
Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:8977, v8:7703
Change-Id: If3782c0c7047d4c7d8669e12fb423cc0c74bc58a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1587392
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61180}
This is a reland of b0c4a8764b
Original change's description:
> [json] Speed up json parsing
>
> - scan using raw data pointers + GC callback
> - scan using scanner tables
> - cap internalizing large string values
> - inline fast transitioning logic
>
> Fixes previous CL by moving AllowHeapAllocation to callers of
> ReportUnexpectedCharacter where needed to make it clear we need to exit.
>
> Tbr: ulan@chromium.org
> Change-Id: Icfbb7cd536e0fbe153f34acca5d0fab6b5453d71
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1591778
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Toon Verwaest <verwaest@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61159}
Tbr: verwaest@chromium.org
Cq-Include-Trybots: luci.v8.try:v8_linux64_msan_rel
Change-Id: Ic7d0057178c649fc45b8c8f4587ee9128e351515
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593292
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61179}
This reverts commit b6fb27077d.
Reason for revert: TSan issues, e.g. https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/26177
Original change's description:
> [wasm][gc] Free WasmCode objects
>
> This adds the next step to freeing code: We free the actual C++
> {WasmCode} objects. This will cause UAF if any C++ code uses stale
> references.
> The underlying machine code will still not be freed.
>
> For simplicity, this CL changes the vector of owned_code to an ordered
> set, such that lookup and removal is much simpler. The drawback is that
> insertion is now more expensive.
>
> R=mstarzinger@chromium.org
>
> Bug: v8:8217
> Change-Id: I07fc81167816637fbaad6c06ff79e3f952f2fde8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593080
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61165}
TBR=mstarzinger@chromium.org,clemensh@chromium.org
Change-Id: I167a8d806a8c6ac1c90e0743cdf86d492389bbed
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8217, v8:9200
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593305
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61176}
This enables the embedder to check if the snapshot generated
from SnapshotCreator::CreateBlob() can be rehashed and the seed
can be recomputed during deserialization.
The lack of this functionality resulted in a temporary vunerability
in Node.js: https://github.com/nodejs/node/pull/27365
Change-Id: I88d52337217c40f79c26438be3c87d2db874d980
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1578661
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61175}
When asked to start at the receiver and the receiver is a primitive, the
dependency should be taken on the primitive map (which is a no-op)
rather than the wrapper object's map.
Bug: chromium:958716
Change-Id: I9c8b2b56436d134b2f79dbe458c0c527fe6d17a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593086
Commit-Queue: Georg Neis <neis@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61174}
Port 381a7f9e76
Original Commit Message:
On Arm/64 the last return address is stored in a link register instead of
being pushed to the top-of-stack like on x64/ia32. Extend the support in the
tick sampler to check for samples in a frameless bytecode handler with support
for checking the link register if it exists instead of top-of-stack. In addition,
make the x64/ia32 check more robust by ensuring we only apply the change if the
pc is a bytecode handler and the top frame isn't a bytecode handler (stub) frame.
R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:9162
LOG=N
Change-Id: I893b45af40a48415fbbc2c9f5e9e5cd72ed8d9e7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1588888
Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61173}
This reverts commit ad44c258d7.
Reason for revert: Missed some users: crbug.com/v8/9105
Original change's description:
> [typedarray] Make JSTypedArray::length authoritative.
>
> This is the first step towards full huge typed array support in V8.
> Before this change, the JSTypedArray::length and the elements backing
> store length (FixedTypedArrayBase::length) were used more or less
> interchangeably to determine the number of elements in a JSTypedArray.
>
> With this change we disentangle these two lengths, and instead make
> JSTypedArray::length authoritative. For on-heap typed arrays, the
> FixedTypedArrayBase::length will remain the number of elements in the
> backing store, but for the off-heap typed arrays, this length will be
> set to 0 (matching the fact that the FixedTypedArrayBase instance does
> not contain any elements itself).
>
> This also unifies the JSTypedArray::set_/length() and length_value()
> methods to only have JSTypedArray::set_/length() which returns/takes
> size_t values. Currently this still requires the values to be in Smi
> range, but later we will extend this to allow arbitrary size_t values
> (in the safe integer range).
>
> Bug: v8:4153, v8:7881
> Change-Id: Iff9089130bb31fa9e08e0cf913e7ab52c3dbf107
> Cq-Include-Trybots: luci.chromium.try:linux-blink-rel
> Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1543729
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60648}
TBR=jarin@chromium.org,titzer@chromium.org,hpayer@chromium.org,petermarshall@chromium.org,bmeurer@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
TBR=jarin@chromium.org, szuend@chromium.org
Bug: v8:4153, v8:7881
Change-Id: I96992bff15b4a2765ae4a557d2c37e78269c927d
Cq-Include-Trybots: luci.chromium.try:linux-blink-rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593294
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61172}
This is a reland of 7c42628676
Original change's description:
> [heap] Use normal marking write barrier for fixed array elements
>
> This simplifies the marking write barrier for elements to mark the
> values instead of revisiting the array.
>
> Bug: chromium:918485
>
> Change-Id: Id5da0d5b9ff8385a256fe14f4bf7171f9f6343e1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1588459
> 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@{#61125}
Bug: chromium:918485
Change-Id: I8075e0333b3a05bc6193eb4bc030bfdcd72e64d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593088
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@{#61170}
This fixes a memory leak.
Bug: v8:9191, v8:7790
Change-Id: I0df49cd3a6791600638a67b4b7ad9687562e500b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1588426
Commit-Queue: Georg Neis <neis@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61166}
