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src: fix cppgc incompatibility in v8 #43521

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This fixes a crash that happens sporadically when Node is used in the same V8 Isolate as Blink.

Example Stacktrace
#
# Fatal error in ../../v8/src/objects/js-objects-inl.h, line 306
# Debug check failed: static_cast<unsigned>(index) < static_cast<unsigned>(GetEmbedderFieldCount()) (1 vs. 1).
#
#
#
#FailureMessage Object: 0x7ffee46fd1c0
0   Electron Framework                  0x00000001181c78d9 base::debug::CollectStackTrace(void**, unsigned long) + 9
1   Electron Framework                  0x00000001180ea633 base::debug::StackTrace::StackTrace() + 19
2   Electron Framework                  0x000000011a04decd gin::(anonymous namespace)::PrintStackTrace() + 45
3   Electron Framework                  0x0000000119a9b416 V8_Fatal(char const*, int, char const*, ...) + 326
4   Electron Framework                  0x0000000119a9aeb5 v8::base::(anonymous namespace)::DefaultDcheckHandler(char const*, int, char const*) + 21
5   Electron Framework                  0x000000011530763f v8::internal::JSObject::GetEmbedderFieldOffset(int) + 207
6   Electron Framework                  0x00000001155f68e6 v8::internal::LocalEmbedderHeapTracer::EmbedderWriteBarrier(v8::internal::Heap*, v8::internal::JSObject) + 150
7   Electron Framework                  0x00000001152cd34f v8::Object::SetAlignedPointerInInternalField(int, void*) + 639
8   Electron Framework                  0x000000011d18df35 node::BaseObject::BaseObject(node::Environment*, v8::Local<v8::Object>) + 101
9   Electron Framework                  0x000000011d347b6e node::crypto::DiffieHellman::DiffieHellman(node::Environment*, v8::Local<v8::Object>) + 14
10  Electron Framework                  0x000000011d348413 node::crypto::DiffieHellman::New(v8::FunctionCallbackInfo<v8::Value> const&) + 147
[...]

This crash is happening because the V8 isolate in this scenario has cppgc enabled. When cppgc is enabled, V8 assumes that the first embedder field is a "type" pointer, the first 16 bits of which are the embedder ID. At the moment, Node.js does not adhere to this requirement. Mostly, this worked by accident. If the first field in the BaseObject was a pointer to a bit of memory that happened to contain the two-byte little-endian value 0x0001, however, V8 would take that to mean that the object was a Blink object1, and attempt to read the pointer in the second embedder slot, which would result in a CHECK.

This change adds an "embedder id" pointer as the first embedder field in all Node-managed objects. This ensures that cppgc will always skip over Node objects.

See also: https://source.chromium.org/chromium/chromium/src/+/main:v8/include/v8-cppgc.h;l=70-76;drc=5a758a97032f0b656c3c36a3497560762495501a

Upstreamed from our existing patch.

@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. labels Jun 21, 2022
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targos commented Jun 21, 2022

@nodejs/cpp-reviewers

src/base_object.h Outdated Show resolved Hide resolved
// Otherwise, when Node is loaded in an isolate which uses cppgc, cppgc will
// misinterpret the data stored in the embedder fields and try to garbage
// collect them.
static uint16_t kNodeEmbedderId = 0x90de;
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Would it make sense to add our ID to https://source.chromium.org/chromium/chromium/src/+/main:gin/public/gin_embedders.h;l=18-23;drc=5a758a97032f0b656c3c36a3497560762495501a ? I imagine there probably should be some kind of directory of V8 embedders in case they step on each other's toes, though not sure if gin is the right place for that directory..

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By the way I like this change :) Helps making the checks in the snapshot (de/)serialization callbacks more robust (right now they are just checking whatever in BaseObject::kSlot behaves like a BaseObject, which is quite unreliable)

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Not sure why the CHECK in

CHECK(result.second);
is failing. 🤔

src/base_object-inl.h Outdated Show resolved Hide resolved
src/base_object-inl.h Outdated Show resolved Hide resolved
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The failed check indicates that the binding being added was already added, which shouldn't have happened? You can try printing T::type_name above the check to figure out which binding it is (they are supposed to be unique for each binding)

@codebytere codebytere force-pushed the fix-isolate-overlap-crash branch 2 times, most recently from 312149f to 096447c Compare June 30, 2022 07:44
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LGTM % formatting fixes

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@joyeecheung it looks like node::process::BindingDatais getting logged out 🤔 ?

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joyeecheung commented Jul 12, 2022

@codebytere I figured it out - the SerializeNodeContextInternalFields() and DeserializeNodeInternalFields() were assuming that they are only ever called on BaseObject::kSlot, which was fine previously, but now that there is another field before that we need to rewrite these two callbacks to work with the new layout. Can I push the fix directly to the PR branch?

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@joyeecheung sure - go for it :)

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I've also rebased the branch to resolve the merge conflicts

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For some reason, Windows is still testing the code before the patch...retrying the CI

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@jasnell @RaisinTen Can you take a look at the patch again as it has changed quite a bit now to work with the snapshot? Thanks!

guangwong pushed a commit to noslate-project/node that referenced this pull request Jan 3, 2023
This patch updates the layout of the BaseObjects to make sure
that the first embedder field of them is a "type" pointer, the
first 16 bits of which are the Node.js embedder ID, so that
cppgc will always skip over them. In addition we now use this
field to determine if the native object should be interpreted
as a Node.js embedder object in the serialization and deserialization
callbacks for the startup snapshot to improve the reliability.

Co-authored-by: Joyee Cheung <[email protected]>
PR-URL: nodejs/node#43521
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
danielleadams pushed a commit that referenced this pull request Jan 3, 2023
This patch updates the layout of the BaseObjects to make sure
that the first embedder field of them is a "type" pointer, the
first 16 bits of which are the Node.js embedder ID, so that
cppgc will always skip over them. In addition we now use this
field to determine if the native object should be interpreted
as a Node.js embedder object in the serialization and deserialization
callbacks for the startup snapshot to improve the reliability.

Co-authored-by: Joyee Cheung <[email protected]>
PR-URL: #43521
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
codebytere added a commit to electron/electron that referenced this pull request Jan 9, 2023
codebytere added a commit to electron/electron that referenced this pull request Jan 9, 2023
codebytere added a commit to electron/electron that referenced this pull request Jan 11, 2023
* chore: bump node in DEPS to v18.13.0

* child_process: validate arguments for null bytes

nodejs/node#44782

* bootstrap: merge main thread and worker thread initializations

nodejs/node#44869

* module: ensure relative requires work from deleted directories

nodejs/node#42384

* src: add support for externally shared js builtins

nodejs/node#44000

* lib: disambiguate `native module` to `binding`

nodejs/node#45673

* test: convert test-debugger-pid to async/await

nodejs/node#45179

* deps: upgrade to libuv 1.44.2

nodejs/node#42340

* src: fix cppgc incompatibility in v8

nodejs/node#43521

* src: use qualified `std::move` call in node_http2

nodejs/node#45555

* build: fix env.h for cpp20

nodejs/node#45516

* test: remove experimental-wasm-threads flag

nodejs/node#45074

* src: iwyu in cleanup_queue.cc

nodejs/node#44983

* src: add missing include for `std::all_of`

nodejs/node#45541

* deps: update ICU to 72.1

nodejs/node#45068

* chore: fixup patch indices

* chore: remove errant semicolons

- nodejs/node#44179
- nodejs/node#44193

* src: add support for externally shared js builtins

nodejs/node#44376

* chore: add missing GN filenames

* deps: update nghttp2 to 1.51.0

nodejs/node#45537

* chore: disable more Node.js snapshot tests

The Snapshot feature is currently disabled

* chore: disable ICU timezone tests

Node.js uses a different version of ICU than Electron so they
will often be out of sync.

* chore: disable threadpool event tracing test

Event tracing is not enabled in embedded Node.js

* chore: fixup patch indices

* chore: comments from review

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: Shelley Vohr <[email protected]>
khalwa pushed a commit to solarwindscloud/electron that referenced this pull request Feb 22, 2023
* chore: bump node in DEPS to v18.13.0

* child_process: validate arguments for null bytes

nodejs/node#44782

* bootstrap: merge main thread and worker thread initializations

nodejs/node#44869

* module: ensure relative requires work from deleted directories

nodejs/node#42384

* src: add support for externally shared js builtins

nodejs/node#44000

* lib: disambiguate `native module` to `binding`

nodejs/node#45673

* test: convert test-debugger-pid to async/await

nodejs/node#45179

* deps: upgrade to libuv 1.44.2

nodejs/node#42340

* src: fix cppgc incompatibility in v8

nodejs/node#43521

* src: use qualified `std::move` call in node_http2

nodejs/node#45555

* build: fix env.h for cpp20

nodejs/node#45516

* test: remove experimental-wasm-threads flag

nodejs/node#45074

* src: iwyu in cleanup_queue.cc

nodejs/node#44983

* src: add missing include for `std::all_of`

nodejs/node#45541

* deps: update ICU to 72.1

nodejs/node#45068

* chore: fixup patch indices

* chore: remove errant semicolons

- nodejs/node#44179
- nodejs/node#44193

* src: add support for externally shared js builtins

nodejs/node#44376

* chore: add missing GN filenames

* deps: update nghttp2 to 1.51.0

nodejs/node#45537

* chore: disable more Node.js snapshot tests

The Snapshot feature is currently disabled

* chore: disable ICU timezone tests

Node.js uses a different version of ICU than Electron so they
will often be out of sync.

* chore: disable threadpool event tracing test

Event tracing is not enabled in embedded Node.js

* chore: fixup patch indices

* chore: comments from review

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: Shelley Vohr <[email protected]>
gecko19 pushed a commit to brightsign/electron that referenced this pull request Feb 28, 2023
* chore: bump node in DEPS to v18.13.0

* child_process: validate arguments for null bytes

nodejs/node#44782

* bootstrap: merge main thread and worker thread initializations

nodejs/node#44869

* module: ensure relative requires work from deleted directories

nodejs/node#42384

* src: add support for externally shared js builtins

nodejs/node#44000

* lib: disambiguate `native module` to `binding`

nodejs/node#45673

* test: convert test-debugger-pid to async/await

nodejs/node#45179

* deps: upgrade to libuv 1.44.2

nodejs/node#42340

* src: fix cppgc incompatibility in v8

nodejs/node#43521

* src: use qualified `std::move` call in node_http2

nodejs/node#45555

* build: fix env.h for cpp20

nodejs/node#45516

* test: remove experimental-wasm-threads flag

nodejs/node#45074

* src: iwyu in cleanup_queue.cc

nodejs/node#44983

* src: add missing include for `std::all_of`

nodejs/node#45541

* deps: update ICU to 72.1

nodejs/node#45068

* chore: fixup patch indices

* chore: remove errant semicolons

- nodejs/node#44179
- nodejs/node#44193

* src: add support for externally shared js builtins

nodejs/node#44376

* chore: add missing GN filenames

* deps: update nghttp2 to 1.51.0

nodejs/node#45537

* chore: disable more Node.js snapshot tests

The Snapshot feature is currently disabled

* chore: disable ICU timezone tests

Node.js uses a different version of ICU than Electron so they
will often be out of sync.

* chore: disable threadpool event tracing test

Event tracing is not enabled in embedded Node.js

* chore: fixup patch indices

* chore: comments from review

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: Shelley Vohr <[email protected]>
gecko19 pushed a commit to brightsign/electron that referenced this pull request Mar 15, 2023
* chore: bump node in DEPS to v18.13.0

* child_process: validate arguments for null bytes

nodejs/node#44782

* bootstrap: merge main thread and worker thread initializations

nodejs/node#44869

* module: ensure relative requires work from deleted directories

nodejs/node#42384

* src: add support for externally shared js builtins

nodejs/node#44000

* lib: disambiguate `native module` to `binding`

nodejs/node#45673

* test: convert test-debugger-pid to async/await

nodejs/node#45179

* deps: upgrade to libuv 1.44.2

nodejs/node#42340

* src: fix cppgc incompatibility in v8

nodejs/node#43521

* src: use qualified `std::move` call in node_http2

nodejs/node#45555

* build: fix env.h for cpp20

nodejs/node#45516

* test: remove experimental-wasm-threads flag

nodejs/node#45074

* src: iwyu in cleanup_queue.cc

nodejs/node#44983

* src: add missing include for `std::all_of`

nodejs/node#45541

* deps: update ICU to 72.1

nodejs/node#45068

* chore: fixup patch indices

* chore: remove errant semicolons

- nodejs/node#44179
- nodejs/node#44193

* src: add support for externally shared js builtins

nodejs/node#44376

* chore: add missing GN filenames

* deps: update nghttp2 to 1.51.0

nodejs/node#45537

* chore: disable more Node.js snapshot tests

The Snapshot feature is currently disabled

* chore: disable ICU timezone tests

Node.js uses a different version of ICU than Electron so they
will often be out of sync.

* chore: disable threadpool event tracing test

Event tracing is not enabled in embedded Node.js

* chore: fixup patch indices

* chore: comments from review

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: Shelley Vohr <[email protected]>
gecko19 pushed a commit to brightsign/electron that referenced this pull request Mar 15, 2023
* chore: bump node in DEPS to v18.13.0

* child_process: validate arguments for null bytes

nodejs/node#44782

* bootstrap: merge main thread and worker thread initializations

nodejs/node#44869

* module: ensure relative requires work from deleted directories

nodejs/node#42384

* src: add support for externally shared js builtins

nodejs/node#44000

* lib: disambiguate `native module` to `binding`

nodejs/node#45673

* test: convert test-debugger-pid to async/await

nodejs/node#45179

* deps: upgrade to libuv 1.44.2

nodejs/node#42340

* src: fix cppgc incompatibility in v8

nodejs/node#43521

* src: use qualified `std::move` call in node_http2

nodejs/node#45555

* build: fix env.h for cpp20

nodejs/node#45516

* test: remove experimental-wasm-threads flag

nodejs/node#45074

* src: iwyu in cleanup_queue.cc

nodejs/node#44983

* src: add missing include for `std::all_of`

nodejs/node#45541

* deps: update ICU to 72.1

nodejs/node#45068

* chore: fixup patch indices

* chore: remove errant semicolons

- nodejs/node#44179
- nodejs/node#44193

* src: add support for externally shared js builtins

nodejs/node#44376

* chore: add missing GN filenames

* deps: update nghttp2 to 1.51.0

nodejs/node#45537

* chore: disable more Node.js snapshot tests

The Snapshot feature is currently disabled

* chore: disable ICU timezone tests

Node.js uses a different version of ICU than Electron so they
will often be out of sync.

* chore: disable threadpool event tracing test

Event tracing is not enabled in embedded Node.js

* chore: fixup patch indices

* chore: comments from review

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>
Co-authored-by: Shelley Vohr <[email protected]>
pull bot pushed a commit to jamlee-t/v8 that referenced this pull request Jun 27, 2023
This makes it possible for embedders to:

1. Avoid creating wrapper objects that happen to have a layout that
  leads V8 to consider the object cppgc-managed while it's not.
  Refs: nodejs/node#43521
2. Create cppgc-managed wrapper objects when they do not own the
   CppHeap. Refs: nodejs/node#45704

Bug: v8:13960
Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
Reviewed-by: Michael Lippautz <[email protected]>
Commit-Queue: Michael Lippautz <[email protected]>
Cr-Commit-Position: refs/heads/main@{#88490}
joyeecheung added a commit to joyeecheung/node that referenced this pull request Jun 30, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
joyeecheung added a commit to joyeecheung/node that referenced this pull request Jun 30, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
joyeecheung added a commit to joyeecheung/node that referenced this pull request Jul 5, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
joyeecheung added a commit to joyeecheung/node that referenced this pull request Jul 5, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
joyeecheung added a commit to joyeecheung/node that referenced this pull request Jul 5, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
joyeecheung added a commit to joyeecheung/node that referenced this pull request Jul 8, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
joyeecheung added a commit to joyeecheung/node that referenced this pull request Jul 20, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
joyeecheung added a commit that referenced this pull request Jul 21, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: #43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: #45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: #48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
rluvaton pushed a commit to rluvaton/node that referenced this pull request Jul 24, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
targos pushed a commit to targos/node that referenced this pull request Jul 31, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
targos pushed a commit to targos/node that referenced this pull request Jul 31, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
pluris pushed a commit to pluris/node that referenced this pull request Aug 6, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
pluris pushed a commit to pluris/node that referenced this pull request Aug 7, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
Ceres6 pushed a commit to Ceres6/node that referenced this pull request Aug 14, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
Ceres6 pushed a commit to Ceres6/node that referenced this pull request Aug 14, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
joyeecheung added a commit to joyeecheung/node that referenced this pull request Aug 15, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
joyeecheung added a commit to joyeecheung/node that referenced this pull request Aug 15, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
joyeecheung added a commit to joyeecheung/node that referenced this pull request Aug 17, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: nodejs#43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: nodejs#45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: nodejs#48660
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
UlisesGascon pushed a commit that referenced this pull request Aug 18, 2023
Original commit message:

    [cppgc] expose wrapper descriptor on CppHeap

    This makes it possible for embedders to:

    1. Avoid creating wrapper objects that happen to have a layout that
      leads V8 to consider the object cppgc-managed while it's not.
      Refs: #43521
    2. Create cppgc-managed wrapper objects when they do not own the
       CppHeap. Refs: #45704

    Bug: v8:13960
    Change-Id: If31f4d56c5ead59dc0d56f937494d23d631f7438
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4598833
    Reviewed-by: Michael Lippautz <[email protected]>
    Commit-Queue: Michael Lippautz <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#88490}

Refs: v8/v8@9327503
PR-URL: #48660
Backport-PR-URL: #49187
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Jiawen Geng <[email protected]>
Refs: #40786
Refs: https://docs.google.com/document/d/1ny2Qz_EsUnXGKJRGxoA-FXIE2xpLgaMAN6jD7eAkqFQ/edit
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8 participants