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Jakob Gruber ad5b005e38 [snapshot] Expose the serializer through %SerializeDeserializeNow 
... in order to exercise the snapshot/ component from mjsunit tests
and fuzzers.

* Since the serializer and deserializer can now be called at any time
instead of only in a tightly controlled environment, several
assumptions (such as an empty execution stack, no microtasks, no
handles) no longer hold and had to be made configurable through
SerializerFlags.

* Root iteration now skips more root categories which were previously
guaranteed to be empty (e.g. the stack, microtask queue, handles).

* The %SerializeDeserializeNow runtime function triggers
serialization, deserialization, and heap verification on the current
isolate and native context.

Support is not yet complete and will be extended in future work. Once
all mjsunit tests successfully run, we can add a new test mode to
stress serialization.

Bug: v8:10416
Change-Id: Ie7ff441a761257dd7f256d0a33e73227850074ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2159495
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67423}
2020-04-28 09:36:23 +00:00
build_overrides [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +00:00
custom_deps Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
docs Add OWNERS for docs/ 2019-05-15 12:06:15 +00:00
gni [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +00:00
include Reland "[heap] Skip memory reducer on AdjustAmountOfExternalAllocateMemory" 2020-04-27 19:47:05 +00:00
infra Configure ARM builder for CFI protection testing 2020-04-17 09:15:56 +00:00
samples [api] Create v8::String::NewFromLiteral that returns Local<String> 2020-03-09 12:02:07 +00:00
src [snapshot] Expose the serializer through %SerializeDeserializeNow 2020-04-28 09:36:23 +00:00
test [snapshot] Expose the serializer through %SerializeDeserializeNow 2020-04-28 09:36:23 +00:00
testing Roll v8/third_party/googletest/src/ 10b1902d8..e3f0319d8 (43 commits) 2020-04-15 07:23:10 +00:00
third_party [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +00:00
tools [protectors] Move regexp species protector back to the isolate 2020-04-28 06:40:42 +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 [infra] Update .git-blame-ignore-revs 2020-03-03 12:59:13 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore [tracing] Migrate tracing to Perfetto track events 2020-04-17 21:31:24 +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 Fix ycm config for headers without source 2019-12-09 11:59:21 +00:00
AUTHORS Fix undefined behavior due to memcpy-ing bool var 2020-04-27 09:47:43 +00:00
BUILD.gn Wasm debugging with LLDB: access Wasm engine state 2020-04-28 01:02:32 +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 heap: Add Oilpan folks to COMMON_OWNERS 2020-04-14 08:55:52 +00:00
DEPS DEPS: roll depot_tools 2020-04-27 17:59:05 +00:00
ENG_REVIEW_OWNERS Add eng review owners as escalation path 2019-05-15 19:12:10 +00:00
INFRA_OWNERS Remove myself from owners 2019-12-12 14:22:32 +00:00
INTL_OWNERS add ftang as owner 2020-04-24 19:19:36 +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
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PPC_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
PRESUBMIT.py Remove the #undef check from the Presubmit for .cc files 2020-01-24 15:24:51 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
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WATCHLISTS Stop watching for API changes in WATCHLISTS 2020-04-08 07:06:45 +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.