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Michael Starzinger b096eb5552 [wasm] Avoid reserving buffer if no memory declared. 
This makes sure no underlying ArrayBuffer is reserved for modules that
don't declare a module. For the case where a memory is declared but the
initial size is 0, we still reserve a buffer in case of trap handlers.

R=ahaas@chromium.org
BUG=v8:9678

Change-Id: I837b8f257b63eb4111646806b899074babd7c9f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784290
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63568}
2019-09-05 10:08:24 +00:00
benchmarks Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
build_overrides Use relative paths to OWNERS files 2019-08-12 13:52:52 +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 Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
include Revert "Reland x5 [arraybuffer] Rearchitect backing store ownership" 2019-08-30 08:23:40 +00:00
infra infra: make Win64 ASAN bots request Windows-10-15063. 2019-08-31 08:13:16 +00:00
samples [cleanup] Drop some occurrences of Isolate::Current 2019-06-26 19:39:21 +00:00
src [wasm] Avoid reserving buffer if no memory declared. 2019-09-05 10:08:24 +00:00
test [mips][wasm] Stage type reflection support 2019-09-05 09:28:34 +00:00
testing Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
third_party [wasm-c-api] Roll bf31edf: Fix life times of host info 2019-08-26 14:28:51 +00:00
tools [foozzie] Enable wasm staging on correctness fuzzer 2019-09-02 13:41:34 +00:00
.clang-format
.clang-tidy
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.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
.gitignore [wasm] Add proposal js-api spec tests to the testrunner 2019-08-28 04:59:21 +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
AUTHORS [wasm][anyref] fix decoding of table index immediates 2019-08-20 14:54:59 +00:00
BUILD.gn [builtins] Port RegExp.p.match to Torque 2019-09-03 17:26:51 +00:00
ChangeLog [release] Merge ChangeLog back to master 2018-12-07 15:41:59 +00:00
CODE_OF_CONDUCT.md
codereview.settings
COMMON_OWNERS [OWNERS] Add solanes@ to COMMON_OWNERS 2019-05-22 13:50:51 +00:00
DEPS Update V8 DEPS. 2019-09-05 03:41:42 +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
LICENSE.strongtalk
LICENSE.v8
LICENSE.valgrind
MIPS_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
OWNERS Use relative paths to OWNERS files 2019-08-12 13:52:52 +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.