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Thibaud Michaud 924ab19bcc Reland "[wasm] Compile JS to WASM wrappers asynchronously" 
Revert reason should be fixed with this CL:
https://chromium-review.googlesource.com/c/v8/v8/+/1722554

The underlying problem was the isolate being accessed from the
background compilation thread. Other known places where the isolate was
used have also been fixed in these CLs:
https://chromium-review.googlesource.com/c/v8/v8/+/1722555
https://chromium-review.googlesource.com/c/v8/v8/+/1722559
https://chromium-review.googlesource.com/c/v8/v8/+/1722556

Original CL:
> Reland "[wasm] Compile JS to WASM wrappers asynchronously"
>
> Original CL had an issue with builtins being accessed through the
> isolate after the isolate died. See:
> https://ci.chromium.org/p/v8/builders/try.triggered/v8_win64_rel_ng_triggered/b8907837534672203296
>
> Initial upload is the original CL and the following patch sets will
> attempt to fix it.
>
> Original CL:
>
> > [wasm] Compile JS to WASM wrappers asynchronously
> >
> > R=mstarzinger@chromium.org, ahaas@chromium.org
> >
> > Bug: v8:9231
> > Change-Id: I9e18073bbe25bf8c9c5f9ace102316e6209d0459
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1669699
> > Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#62672}
>
> R=​mstarzinger@chromium.org, ahaas@chromium.org
>
> Bug: v8:9231
> Change-Id: I1b01d5d2b9f728d6f6a90fe9b642f5ba3bf686eb
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1708485
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62918}

R=mstarzinger@chromium.org

Bug: v8:9231, v8:9554
Change-Id: I40443e7228eb26d6669e826e96073b20fa038c15
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1725619
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62985}
2019-07-30 12:28:39 +00:00
benchmarks Add missing owners files 2019-05-31 07:21:01 +00:00
build_overrides [build] Dynamically decide if to use system xcode 2019-07-29 08:20:24 +00:00
custom_deps Clean up infra owners 2019-05-15 11:18:43 +00:00
docs Add OWNERS for docs/ 2019-05-15 12:06:15 +00:00
gni Revert "Add postmortem debugging helper library" 2019-07-24 16:31:54 +00:00
include [WeakRefs] Make cleanup callback run as a task 2019-07-30 12:19:39 +00:00
infra [test] Add bytecode-expectation test 2019-07-22 08:48:36 +00:00
samples [cleanup] Drop some occurrences of Isolate::Current 2019-06-26 19:39:21 +00:00
src Reland "[wasm] Compile JS to WASM wrappers asynchronously" 2019-07-30 12:28:39 +00:00
test [WeakRefs] Make cleanup callback run as a task 2019-07-30 12:19:39 +00:00
testing Add missing owners files 2019-05-31 07:21:01 +00:00
third_party [DevTools] Roll inspector_protocol (V8). 2019-07-03 10:41:47 +00:00
tools [WeakRefs] Make cleanup callback run as a task 2019-07-30 12:19:39 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.clang-tidy [tool] Remove unfixed clang-tidy warnings to ease use. 2018-10-26 07:40:32 +00:00
.editorconfig Add .editorconfig 2017-07-28 13:39:24 +00:00
.flake8 Add .flake8 to allow for python style checking. 2019-07-19 21:44:03 +00:00
.git-blame-ignore-revs Add recent code rewrite to .git-blame-ignore-revs 2019-05-23 10:38:45 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore [wasm-c-api] Un-.gitignore third_party/wasm-api/ 2019-06-17 08:52:37 +00:00
.gn [build] Dynamically decide if to use system xcode 2019-07-29 08:20:24 +00:00
.vpython [tools] Implement confidence-based number of runs 2019-05-09 09:42:28 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS random number generator seeding update for macOS 2019-07-26 11:55:01 +00:00
BUILD.gn [WeakRefs] Make cleanup callback run as a task 2019-07-30 12:19:39 +00:00
ChangeLog [release] Merge ChangeLog back to master 2018-12-07 15:41:59 +00:00
CODE_OF_CONDUCT.md Explicitly state that the Chromium Code of Conduct also applies to V8 2016-03-02 09:51:24 +00:00
codereview.settings Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
COMMON_OWNERS [OWNERS] Add solanes@ to COMMON_OWNERS 2019-05-22 13:50:51 +00:00
DEPS Update V8 DEPS. 2019-07-30 03:58:18 +00:00
ENG_REVIEW_OWNERS Add eng review owners as escalation path 2019-05-15 19:12:10 +00:00
INFRA_OWNERS Clean up infra owners 2019-05-15 11:18:43 +00:00
INTL_OWNERS Add missing owners files 2019-05-31 07:21:01 +00:00
LICENSE [wasm] Draft version of C/C++ Wasm API 2019-04-17 16:00:26 +00:00
LICENSE.fdlibm Add LICENSE.fdlibm for all the fdlibm imported sources. 2016-06-09 07:17:03 +00:00
LICENSE.strongtalk Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
MIPS_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
OWNERS Add .flake8 to allow for python style checking. 2019-07-19 21:44:03 +00:00
PPC_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
PRESUBMIT.py Reland "Move logging and diagnostics related source files" 2019-05-20 09:54:57 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
S390_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
WATCHLISTS Move remaining files in src/ 2019-05-24 18:24:36 +00:00

README.md

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.