f2bd913cd4
- we should always set creation async stack if it's available regardless existing of current parent async stack, - we should cleanup parent link iff there is no creation and schedule async stack for parent. Let's consider example: Promise.resolve().then(x => x).then(x => x), there is three promises which will call following instrumentation: 1) created #1 (Promise.resolve()) - collected stack #1 2) scheduled #1 - collected stack #2 3) created #2 with #1 as parent (first .then) - collected stack #3 4) created #3 with #2 as parent (first .then) - collected stack #4 5) started #2 - use stack #2 as scheduled 6) scheduled #2 - collected stack #6 7) finished #2 8) started #3 - use stack #6 as scheduled 9) scheduled #3 - collected stack #7 10) finished #3 If we collect stacks between step 4 and 5, it's possible to collect scheduled stack #2 but still have creation stack for #2 - stack #3 - so we always need to add creation event if scheduled is collected. If we collect stacks between created and scheduled we should not remove parent link even if parent was not scheduled yet. BUG=v8:6189 R=dgozman@chromium.org Review-Url: https://codereview.chromium.org/2844753002 Cr-Commit-Position: refs/heads/master@{#44990} |
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| benchmarks | ||
| build_overrides | ||
| docs | ||
| gni | ||
| gypfiles | ||
| include | ||
| infra | ||
| samples | ||
| src | ||
| test | ||
| testing | ||
| third_party | ||
| tools | ||
| .clang-format | ||
| .gitignore | ||
| .gn | ||
| .ycm_extra_conf.py | ||
| AUTHORS | ||
| BUILD.gn | ||
| ChangeLog | ||
| CODE_OF_CONDUCT.md | ||
| codereview.settings | ||
| DEPS | ||
| LICENSE | ||
| LICENSE.fdlibm | ||
| LICENSE.strongtalk | ||
| LICENSE.v8 | ||
| LICENSE.valgrind | ||
| Makefile | ||
| Makefile.android | ||
| OWNERS | ||
| PRESUBMIT.py | ||
| README.md | ||
| snapshot_toolchain.gni | ||
| WATCHLISTS | ||
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://github.com/v8/v8/wiki
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 on the V8 wiki.