This is a reland of e28dadc207
Relanding to see if Win32 rel failures from
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/overview
were infra flakes. Could not repro on try bots.
Original change's description:
> [ptr-cage] Rename IsolateRoot to PtrComprCageBase
>
> Currently, IsolateRoot is both the address of the Isolate root and the
> base address of the pointer compression reservation. This CL teases the
> two uses apart by renaming IsolateRoot to PtrComprCageBase.
>
> - In addition to V8_COMPRESS_POINTERS, add a
> V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).
>
> - Rename GetIsolate* helpers to GetPtrComprCageBase. When
> V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
> aliases to GetPtrComprCageBase.
>
> - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.
>
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
No-Try: true
Bug: v8:11460
Tbr: ishell@chromium.org
Tbr: rmcilroy@chromium.org
Change-Id: I0a8c3a48999d6737c8c64d2c2703607f14f3fdd0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806169
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73792}
This reverts commit e28dadc207.
Reason for revert: failed test262 tests;; see https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win32/32275/steps?succeeded=true&debug=false
Original change's description:
> [ptr-cage] Rename IsolateRoot to PtrComprCageBase
>
> Currently, IsolateRoot is both the address of the Isolate root and the
> base address of the pointer compression reservation. This CL teases the
> two uses apart by renaming IsolateRoot to PtrComprCageBase.
>
> - In addition to V8_COMPRESS_POINTERS, add a
> V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).
>
> - Rename GetIsolate* helpers to GetPtrComprCageBase. When
> V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
> aliases to GetPtrComprCageBase.
>
> - Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.
>
> Bug: v8:11460
> Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Auto-Submit: Shu-yu Guo <syg@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73790}
Bug: v8:11460
Change-Id: I19d0e28194fcdb28e89f129a7694ca3fe29fa17a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806168
Auto-Submit: Francis McCabe <fgm@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#73791}
Currently, IsolateRoot is both the address of the Isolate root and the
base address of the pointer compression reservation. This CL teases the
two uses apart by renaming IsolateRoot to PtrComprCageBase.
- In addition to V8_COMPRESS_POINTERS, add a
V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE (vs SHARED_CAGE).
- Rename GetIsolate* helpers to GetPtrComprCageBase. When
V8_COMPRESS_POINTERS_IN_ISOLATE_CAGE is true, the helpers remain as
aliases to GetPtrComprCageBase.
- Rename kPtrComprIsolateRootAlignment to kPtrComprCageBaseAlignment.
Bug: v8:11460
Change-Id: I1d715f678ce9a0b5731895612ca14f56579b1c48
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2783672
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73790}
This reverts commit c83c9590ba.
Reason for revert: Speculatively reverting for a failure on Arm GC stress bot - https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Arm%20GC%20Stress/b8851256837192083520/overview
Original change's description:
> [ic] Add a new MegaDOM IC
>
> This patch implements the MegaDOM IC setup and access. A new MegaDOM
> IC state indicates that we've seen only DOM accessors at this access
> site.
>
> This CL only adds support for DOM getters in LoadIC, other kinds of
> access will be added in follow on CLs.
>
> Still remaining TODO before shipping:
> 1. Have a mechanism to invalidate the protector
> 2. Have a mechanism to find the accessors that aren't overloaded
> 3. Use a new builtin to miss to runtime on access check failure
>
> Change-Id: Ie12efe5e9fa284f023043b996d61e7d74e710ee2
> Bug: v8:11321
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2618239
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Mythri Alle <mythria@chromium.org>
> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73733}
Bug: v8:11321
Change-Id: Ib6a55796f2a3c345d4923f9eaa215a6ff55ed15b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2794437
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#73734}
This patch implements the MegaDOM IC setup and access. A new MegaDOM
IC state indicates that we've seen only DOM accessors at this access
site.
This CL only adds support for DOM getters in LoadIC, other kinds of
access will be added in follow on CLs.
Still remaining TODO before shipping:
1. Have a mechanism to invalidate the protector
2. Have a mechanism to find the accessors that aren't overloaded
3. Use a new builtin to miss to runtime on access check failure
Change-Id: Ie12efe5e9fa284f023043b996d61e7d74e710ee2
Bug: v8:11321
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2618239
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73733}
This reverts commit 9eba2d85f4.
Reason for revert: TSAN failures https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20isolates/14265/overview
Original change's description:
> [fastcall] Add fast API testing facilities to d8
>
> This CL provides the minimum necessary functionality to expose fast API
> for testing in mjsunit, exposing the fast path for fuzzing. It exposes
> a d8.test.fast_c_api with an `add_all` method, which exercises primitive
> types. On x64, all integer and floating point types are supported. On
> other platforms currently only 32-bit integers are included in the test.
>
> Design doc:
> https://docs.google.com/document/d/1KUKPfXkSRZTA2gMwaWbpQKlYfw0C-T6AE3XzC4viHbo/
>
> Bug: chromium:1052746
> Change-Id: Icc824199a26dd2abd2b869f5483a39d38e4dce3e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2749154
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73670}
Bug: chromium:1052746
Change-Id: Iaf5083540ddfe882a747eaa9d1d2a2a8b4ba0ec0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2787081
Auto-Submit: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#73673}
This CL provides the minimum necessary functionality to expose fast API
for testing in mjsunit, exposing the fast path for fuzzing. It exposes
a d8.test.fast_c_api with an `add_all` method, which exercises primitive
types. On x64, all integer and floating point types are supported. On
other platforms currently only 32-bit integers are included in the test.
Design doc:
https://docs.google.com/document/d/1KUKPfXkSRZTA2gMwaWbpQKlYfw0C-T6AE3XzC4viHbo/
Bug: chromium:1052746
Change-Id: Icc824199a26dd2abd2b869f5483a39d38e4dce3e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2749154
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73670}
Origin trials allow webpages to use experimental features even though
the features are not yet enabled by default. These features will then
get enabled per execution context: it is possible that the feature is
enabled in one execution context but disabled in another execution
context. In V8 we check for origin trials by calling a callback provided
by the embedder that takes the context as a parameter and returns
whether a feature is enabled in this context or not.
This approach fails when a feature changes the context itself, e.g. by
extending the global object. In that case the context is not available
yet to check for the origin trial.
To solve the problem this CL adds a new API function that can be called
by the embedder to notify V8 that context with the origin trial
information is finished. After that V8 can read the origin trial
information from the context and extend e.g. the global object with the
origin trial features.
Additionally to the API this CL also adds code to enable the
WebAssembly.Exception constructor conditionally, depending on whether
it has been enabled by an origin trial or not.
The Blink-side change: https://crrev.com/c/2775573R=ulan@chromium.org, jkummerow@chromium.org
Change-Id: Ic05c4a89eb3e0e31469e49da8767d630c43b2e00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773287
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73597}
Refactor SpacePolicy on a non-templated class to avoid the situation
of having MakeGarbageCollectedTraitBase<T>::SpacePolicy<U> refer to
different T and U which make it hard for the compiler to alias
anything.
Bug: chromium:1056170
Change-Id: I78eb0362d43403ad2712bcb65746eeb9f6ad44fa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2769338
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73494}
This is a reland of d76064df4f
Original change's description:
> cppgc: Rework GC info creation
>
> Previously, GCInfoTrait relied on the non-trivial constructor of a
> static object for registering a new GCInfo object. The generated code
> is required to be thread-safe which is achieved by introducing guard
> variables in the compiler.
>
> The new version is similar to Blink in that it relies on zero
> initialization of a trivially constructible atomic.
>
> Compared to guard variables that are created per GCInfo registration,
> the atomic creates less bloat (~20bytes/type) and also results in a
> better fast path.
>
> Minimum example: https://godbolt.org/z/qrdTf8
>
> Bug: chromium:1056170
> Change-Id: I95efbbf035b655d0440c9477f5391e310e2b71fa
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764750
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73463}
Bug: chromium:1056170
Change-Id: I01e60beabc1d279d352361657f408f113aac768e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2767021
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73471}
This reverts commit d76064df4f.
Reason for revert: Breaking MSAN - https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/37390/overview
Original change's description:
> cppgc: Rework GC info creation
>
> Previously, GCInfoTrait relied on the non-trivial constructor of a
> static object for registering a new GCInfo object. The generated code
> is required to be thread-safe which is achieved by introducing guard
> variables in the compiler.
>
> The new version is similar to Blink in that it relies on zero
> initialization of a trivially constructible atomic.
>
> Compared to guard variables that are created per GCInfo registration,
> the atomic creates less bloat (~20bytes/type) and also results in a
> better fast path.
>
> Minimum example: https://godbolt.org/z/qrdTf8
>
> Bug: chromium:1056170
> Change-Id: I95efbbf035b655d0440c9477f5391e310e2b71fa
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764750
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73463}
Bug: chromium:1056170
Change-Id: I71960103513d6db7789d752b70727d014c2e6406
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2767020
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#73466}
Previously, GCInfoTrait relied on the non-trivial constructor of a
static object for registering a new GCInfo object. The generated code
is required to be thread-safe which is achieved by introducing guard
variables in the compiler.
The new version is similar to Blink in that it relies on zero
initialization of a trivially constructible atomic.
Compared to guard variables that are created per GCInfo registration,
the atomic creates less bloat (~20bytes/type) and also results in a
better fast path.
Minimum example: https://godbolt.org/z/qrdTf8
Bug: chromium:1056170
Change-Id: I95efbbf035b655d0440c9477f5391e310e2b71fa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764750
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73463}
Using RW to update code perturbs SMC snooping on some CPUs.
This reland fixes Apple Silicon and jitless by forcing the flag off.
Change-Id: Ie2cc2e4fac333cad24a129e59cbcb6b13590d6d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2759515
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73425}
Add a V8 API to update load start time for RAIL PERFORMANCE_LOAD mode
Bug: v8:10947
Change-Id: If86a815f8974b47a6f4ba82c3661c21b73f39553
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2423403
Auto-Submit: Hong Zheng <hong.zheng@intel.com>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73393}
Adds GCInfo folding that delegates GCInfo requests to the
parent-most object if finalizer semantics match.
Folding is disabled for builds that want exact object names
as those names are also managed through GCInfo objects.
Bug: chromium:1056170
Change-Id: I783aad930587853741da533d0b9b56ba160d0596
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2748588
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73339}
Resize() is not similar to realloc() in that it allocates a new object
when passed a nullptr object.
Avoid corner cases around Resize(nullptr, size) where size may be
problematic if non-null by just requiring a valid object. The caller
can perform the necesary nullptr check.
Bug: chromium:1056170
Change-Id: Ic05972ae67c2968fc3eb002a6302b44e56b41ab4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2752147
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73336}
Resize() may be used to adjust additional trailing bytes of an object.
It is up to the embedder to ensure correctness in case of shrinking.
Bug: chromium:1056170
Change-Id: I954df6c7440b77275cd62e4b802e8f5d39c06f9d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739652
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73277}
This CL adds missing locks to the PersistentRegions for
(Weak)CrossThreadPersistents.
To make sure no locks are missed in the future, this CL also splits
PersistentRegion and introduces CrossThreadPersistentRegion that checks
whether a lock is taken whenever it is accessed.
Bug: chromium:1056170
Change-Id: Iaaef4a28af0f02bcb896706e9abf1ee5ad2ee1e1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2737299
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73264}
Add an explicit FreeUnreferencedObject() call that can be used to
reclaim objects that are guaranteed to not be referenced anymore
by the embedder. It is up to the embedder to ensure correctness.
Change-Id: I7f2d86d9639e8b805f79a8fd0a346903f63171e5
Bug: chromium:1056170
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2737301
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73262}
This missing include prevents v8-fast-api-calls.h from being included in
some places in blink code.
BUG=chromium:1181349
Change-Id: Ib0678c9a380b702319bd1717fac48bdc64c9b394
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2724929
Auto-Submit: Justin Novosad <junov@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73197}
Handles are notorious for preventing compiler optimizations. We should
avoid them for simple const functions.
- Mark more API functions const
- Mark more String functions const
Bug: v8:11195, chromium:808503, v8:11263
Change-Id: I9940e85600bc7d19027039d807b3313e2dcccdc7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2575065
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73159}
These simplify production of extra information in stack traces or
dereferencing source maps in processing stack traces. While these
can be managed externally, this can be very complicated in
environments where scripts come from many different sources,
possibly not even under embedder control. Since V8 already has
easy access to this information, it's nice to share it with
embedders.
Bug: v8:11509
Change-Id: Ic5a1685adf4cdf456bdf7191ce815f728cf491e2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2724571
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73148}
After deprecation and removal of the old misleading API we re-add
v8::String::IsExternal which returns true for both, external one-byte and
external two-byte strings.
Bug: v8:10641
Change-Id: I4c66d4df891f7180c7a727a45c1fbd254a7f5c02
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2726512
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73137}
Add a Utf16CharacterStream for windows-1252, which uses a table to
covert from windows-1252 to the appropriate uc16 character. This fixes
issues where windows-1252 encoded source was treated like latin-1.
This introduces a new encoding type in the API, so embedders will have
to opt-in to using this new stream.
Fixed: v8:9315
Change-Id: I2e847c2d4f1727281f6be24b4743d77bb232a62d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2729338
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73134}
This is a reland of eb4536797e
Original change's description:
> cppgc: Rework testing GC infrastructure
>
> Instead of moving the stand-alone logic to the base heap, allows
> specific heaps to override their stand-alone GC behavior. This allows
> CppHeap to reuse the unified heap bottlenecks and visitors for
> testing. This works as long as any v8 references are empty as there is
> no Isolate attached to the heap in this case.
>
> - Reverts parts of https://crrev.com/c/2716291
> - Relands parts of https://crrev.com/c/2718146
>
> In addition, add tests covering v8::CppHeap and cppgc::Heap.
>
> Bug: chromium:1056170
> Change-Id: I47dc88c7f0e4961a1aadd60da9b05bff4dcfb27a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718612
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73077}
Bug: chromium:1056170
Change-Id: I415c837a7cf275c636172485dc4101c237a7d76b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2723253
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73081}
This reverts commit eb4536797e.
Reason for revert: Breaks MSAN: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/37053
Original change's description:
> cppgc: Rework testing GC infrastructure
>
> Instead of moving the stand-alone logic to the base heap, allows
> specific heaps to override their stand-alone GC behavior. This allows
> CppHeap to reuse the unified heap bottlenecks and visitors for
> testing. This works as long as any v8 references are empty as there is
> no Isolate attached to the heap in this case.
>
> - Reverts parts of https://crrev.com/c/2716291
> - Relands parts of https://crrev.com/c/2718146
>
> In addition, add tests covering v8::CppHeap and cppgc::Heap.
>
> Bug: chromium:1056170
> Change-Id: I47dc88c7f0e4961a1aadd60da9b05bff4dcfb27a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718612
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73077}
Bug: chromium:1056170
Change-Id: Ieda44c07d08f837a6632f96b8db6d5bec87dd521
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2723216
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Francis McCabe <fgm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73078}
Instead of moving the stand-alone logic to the base heap, allows
specific heaps to override their stand-alone GC behavior. This allows
CppHeap to reuse the unified heap bottlenecks and visitors for
testing. This works as long as any v8 references are empty as there is
no Isolate attached to the heap in this case.
- Reverts parts of https://crrev.com/c/2716291
- Relands parts of https://crrev.com/c/2718146
In addition, add tests covering v8::CppHeap and cppgc::Heap.
Bug: chromium:1056170
Change-Id: I47dc88c7f0e4961a1aadd60da9b05bff4dcfb27a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718612
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73077}
This was causing DevTools to crush whenever I took a heap snapshot.
Bug: chromium:1056170
Change-Id: Ice7b3039c21a3f902f242299939e92ba0e393c9f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2720307
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73065}
This CL adds WasConservativeGC to HeapState which reports whether the
last GC was finalized conservatively. The state is updated at the end of
marking atomic pause.
Currently the library integration in Blink ignores the stack state when
scheduling a forced GC for testing. That means that we always schedule
another GC after a forced GC.
This causes a crash in web_tests which assume no GC is happening
between forced GCs if the thread is not idle and no new allocations
happen.
Usage CL: https://crrev.com/c/2720201
Drive by: Fix stack state for MarkingVerifier in CppHeap.
Bug: chromium:1056170
Change-Id: I6ad23ed7c1a53fae96425b968bc4b3eb18ce80b7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2720279
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73064}
Change-Id: I0005fe0ed7b9f00fd074161d355da430b85675ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2714703
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73052}
This reverts commit ea818f0733.
Reason for revert: Test failure in Linux64 UBSan https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20UBSan/15251/overview
Original change's description:
> cppgc: Fix testing APIs that enable garbage collection
>
> The APIs require that the CppHeap is moved into a permanently detached
> state that moves the heap out of a no-gc scope.
>
> Bug: chromium:1056170
> Change-Id: I1fc08451b3fdfaa4cfe58e6a1ddbe5dbed7efe5c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718146
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Omer Katz <omerkatz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73025}
Bug: chromium:1056170
Change-Id: Id00cb18274cbe7d255e7e95bd9e8e4dbc4b0c6e7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718658
Auto-Submit: Zhi An Ng <zhin@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Francis McCabe <fgm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73029}
The APIs require that the CppHeap is moved into a permanently detached
state that moves the heap out of a no-gc scope.
Bug: chromium:1056170
Change-Id: I1fc08451b3fdfaa4cfe58e6a1ddbe5dbed7efe5c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718146
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73025}
- Add a CFunctionBuilder interface to allow adding modifier flags
to argument types. This will be used to support IDL attributes
like [EnforceRange], [Clamp], and [AllowShared]. This CL adds
only the interface, but the actual modifier flags do not exist
yet as they would not be implemented.
- Remove the internals of the old CFunction type inference and
implement it on top of CFunctionBuilder.
Bug: chromium:1052746
Change-Id: I09a7cba07105097517a8426a8eeb891393883ac6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2686686
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73024}
Two threads might get the same PersistentNode because the
BasicCrossThreadPersistent ctor wasn't taking a lock. Then if one thread
frees the node and the other initalizes it or updates its owner, we get
some random object in our free list of PersistentNodes.
I debug a crash in Assign(Unsafe) and Clear where the PersistentNode
seemed to be allocated on stack. Empirically, adding this guard resolved
it. I can't confirm in the code that the scenario above is what was
happening.
Drive-by: adding a few DCHECKs.
Bug: chromium:1056170
Change-Id: I37d8ed5bb942a124c98d7524b7f04fe8ccb2aefd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2718144
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73023}
Assert that the lock is help whenever AssignUnsafe is called.
LazyMutex::AssertHeld resolves to a DCHECK so this should not
regress production performance (other than the call itself
that might not be inlined).
Bug: chromium:1056170
Change-Id: Ic2005d180e6960c24dff7743aa3e0d5e57a63d80
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2716286
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73000}
This is a reland of ed225df70c
Reland changes: removed #if DEBUG from v8.h since it had compile errors
in chromium + windows. Also wasn't needed anyway since the method it was
calling was just a DCHECK.
Original change's description:
> [objects] Cache the ExternalString's data in its resource
>
> For external uncached strings (also called "Small External Strings")
> with cacheable resources, we can cache its resource's data at the
> string's creation time. This allows us to safely read the data from the
> background as we wouldn't trigger a data() callback.
>
> For more information regarding the investigation and possible proposals
> see
> https://docs.google.com/document/d/101eAQqFpBPWFGNJicxtdlwYShJkTOUsEuxkVVeu5Hrk/edit?usp=sharing
>
> Bug: v8:7790, v8:11463
> Change-Id: I6164092b01a6ccb525a9516f476e066b35fb1f96
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2685177
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72862}
Bug: v8:7790
Bug: v8:11463
Change-Id: I7c8a54c814b92c8632fb0bcf5a33f57fec159443
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2710440
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72956}
This reverts commit ed225df70c.
Reason for revert: Blocks the roll, causing compile failures in Chromium:
https://ci.chromium.org/p/chromium/builders/try/win_chromium_compile_dbg_ng/800868?
Original change's description:
> [objects] Cache the ExternalString's data in its resource
>
> For external uncached strings (also called "Small External Strings")
> with cacheable resources, we can cache its resource's data at the
> string's creation time. This allows us to safely read the data from the
> background as we wouldn't trigger a data() callback.
>
> For more information regarding the investigation and possible proposals
> see
> https://docs.google.com/document/d/101eAQqFpBPWFGNJicxtdlwYShJkTOUsEuxkVVeu5Hrk/edit?usp=sharing
>
> Bug: v8:7790, v8:11463
> Change-Id: I6164092b01a6ccb525a9516f476e066b35fb1f96
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2685177
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72862}
Bug: v8:7790
Bug: v8:11463
Change-Id: I1d14c2f9872d156d43d5d95c8a032a37ba9379cb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2708824
Auto-Submit: Bill Budge <bbudge@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72880}
