2e357c4814
We introduce a wasm null object, separate from JS null. Its purpose is to support trapping null accesses for wasm objects. This will be achieved by allocating a large payload for it (larger than any wasm struct) and memory-protecting it (see linked CL). The two null objects get mapped to each other at the wasm-JS boundary. Since externref objects live on the JS side of the boundary, null-related instructions in wasm now need an additional type argument to handle the correct null object. Bug: v8:7748 Change-Id: I06da00fcd279cc5376e69ab7858e3782f5b5081e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4200639 Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org> Cr-Commit-Position: refs/heads/main@{#85648} |
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BUILD.gn | ||
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codereview.settings | ||
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README.md | ||
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V8 JavaScript Engine
V8 is Google's open source JavaScript engine.
V8 implements ECMAScript as specified in ECMA-262.
V8 is written in C++ and is used in Google Chrome, the open source browser from Google.
V8 can run standalone, or can be embedded into any C++ application.
V8 Project page: https://v8.dev/docs
Getting the Code
Checkout depot tools, and run
fetch v8
This will checkout V8 into the directory v8
and fetch all of its dependencies.
To stay up to date, run
git pull origin
gclient sync
For fetching all branches, add the following into your remote
configuration in .git/config
:
fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
fetch = +refs/tags/*:refs/tags/*
Contributing
Please follow the instructions mentioned at v8.dev/docs/contribute.