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Michael Starzinger 2b7fdbfc75 [wasm] Fix lifetime of reference values on interpreter stack. 
This ensures the lifetime of reference values on the simulated operand
stack of the interpreter is coupled to a lifetime of the {ThreadImpl}.
We no longer directly store reference values on the stack, but maintain
a separate "reference stack" on the GC'ed heap. This will ensure the GC
traces such references properly.

The new {StackValue} safety wrapper makes sure all use-sites that access
the operand stack properly convert to/from handles when dealing with
reference values.

R=clemensh@chromium.org
TEST=mjsunit/wasm/exceptions-interpreter
BUG=v8:8091,v8:7581

Change-Id: I8c05f2d945a6def943b89be0cfca538a73df8855
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552791
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60650}
2019-04-05 12:47:56 +00:00
benchmarks [test] Ensure random generator in JSTests does not use float arithmetic 2018-12-17 10:05:08 +00:00
build_overrides [tracing] Add build config for Perfetto behind a flag 2019-03-28 09:26:52 +00:00
custom_deps [build] Add common directory for custom deps 2018-06-08 19:23:02 +00:00
docs [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
gni Revert "Reland^2 "[build] disable C++ optimization for mksnapshot code."" 2019-04-02 18:56:42 +00:00
include [wasm] Move is_growable from JSArrayBuffer object to AllocationData 2019-04-04 21:11:39 +00:00
infra [build] Fix using goma on gcc builder 2019-04-04 13:35:28 +00:00
samples Add a sample that uses the JS API to create wasm 2018-06-07 23:43:38 +00:00
src [wasm] Fix lifetime of reference values on interpreter stack. 2019-04-05 12:47:56 +00:00
test [wasm] Fix lifetime of reference values on interpreter stack. 2019-04-05 12:47:56 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party [torque] named arguments for constructors 2019-04-04 06:26:51 +00:00
tools Revert "Reland "[ptr-compr][x64] Temporarily enable pointer compression on x64"" 2019-04-03 20:13:12 +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
.git-blame-ignore-revs [build] Add DEPS formatting to hyper-blame 2017-10-09 14:08:45 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore Add .ccls-cache to .gitignore 2019-02-26 10:32:45 +00:00
.gn [test] Remove obsolete test262 archive extract 2018-03-28 13:52:15 +00:00
.vpython [tools] Correctly identify and report test crashes and infra failures 2018-10-30 15:05:40 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS Use inherited ctors for MacroAssembler and TurboAssembler 2019-03-08 09:31:30 +00:00
BUILD.gn [base] Remove safe_math headers 2019-04-04 10:51:51 +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
DEPS Roll ICU to ICU 64.1 + Chromium patches in v8 2019-04-05 11:23:00 +00:00
LICENSE Add antlr4 runtime library to support Torque 2018-04-10 10:01:01 +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
OWNERS [owners] Add szuend@chromium.org to top level owners 2019-03-18 09:37:52 +00:00
PRESUBMIT.py Revert "[torque] Temporarily disable torque format check to pass presubmit" 2019-02-20 14:07:17 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
snapshot_toolchain.gni Make win/cross build work better when targeting arm64 on macOS hosts. 2019-03-22 18:30:23 +00:00
WATCHLISTS Update WATCHLIST wrt yangguo 2018-11-23 08:29:12 +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.