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Ulan Degenbaev fbd3834ebb [heap] Fix regressions in the configuration without concurrent marking 
Building and running tests with v8_enabled_concurrent_marking=false
currently produces two failures:
1) Segmentation fault on attempt to mark a read-only object.
   This is fixed by changing MarkBit::Set to be a no-op if the object
   is already marked (which is the case for the readonly space).
2) Missing write-barrier due to bogus condition in the bailout.
   The barrier can be skipped only if the host object is not marked yet.

This also disables two concurrent allocation tests that rely on
concurrent marking write-barrier.

Bug: v8:10875

Change-Id: Ib3a238fc34c8f20c697470e0bd4ac427fb4bdc0e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2421816
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70041}
2020-09-22 07:41:43 +00:00
build_overrides tracing: Enable using Perfetto client library from Chromium 2020-05-11 11:17:57 +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 v8: Expand is_linux to is_linux || is_chromeos. 2020-09-14 10:11:24 +00:00
include [Jobs API]: Expose JobDelegate::IsJoiningThread. 2020-09-17 16:49:07 +00:00
infra Add Linux TSAN bots without concurrent marking 2020-09-18 13:52:19 +00:00
samples [api][cleanup] Use Template::Set with const char* name 2020-09-09 15:39:36 +00:00
src [heap] Fix regressions in the configuration without concurrent marking 2020-09-22 07:41:43 +00:00
test [heap] Fix regressions in the configuration without concurrent marking 2020-09-22 07:41:43 +00:00
testing Roll v8/third_party/googletest/src/ 10b1902d8..e3f0319d8 (43 commits) 2020-04-15 07:23:10 +00:00
third_party [csa][cleanup] Remove ParameterMode/TNodify StoreFixedDoubleArrayElement 2020-08-26 17:14:44 +00:00
tools Add myself as an owner for debug-helper and v8windbg 2020-09-21 15:19:27 +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 Revert "[presubmit] Add JS formatting for tools/system-analyzer" 2020-07-17 10:33:40 +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 Adding Red Hat to the list of Authorized contributors. 2020-09-16 12:34:39 +00:00
BUILD.gn Bring back the js-function-inl.h inline header 2020-09-15 14:18:32 +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 Adding vahl@ to the common owners to be able to handle 2020-08-21 09:04:56 +00:00
DEPS Update V8 DEPS. 2020-09-22 03:52:57 +00:00
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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
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PRESUBMIT.py [presubmit] Allow use of test functions in runtime-test.cc 2020-08-10 12:12:55 +00:00
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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.