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Junliang Yan 4d6c5d4c87 PPC: [turbofan] unify interpreter and JIT speculation poisoning 
Port 1ef6c4374e

Original Commit Message:

    This CL changes the poisoning in the interpreter to use the
    infrastructure used in the JIT.

    This does not change the original flag semantics:

    --branch-load-poisoning enables JIT mitigations as before.

    --untrusted-code-mitigation enables the interpreter mitigations
      (now realized using the compiler back-end), but does not enable
      the back-end based mitigations for the Javascript JIT. So in effect
      --untrusted-code-mitigation makes the CSA pipeline for bytecode handlers
      use the same mechanics (including changed register allocation) that
      --branch-load-poisoning enables for the JIT.

R=tebbi@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I46ee60541c48ad1e9c5ca1c2aac0d89d81c65333
Reviewed-on: https://chromium-review.googlesource.com/981935
Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#52258}
2018-03-28 05:09:18 +00:00
benchmarks Fix common misspellings 2017-08-02 09:35:28 +00:00
build_overrides [ndk] Change android ndk root for v8 2018-01-11 08:10:33 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni [build] Add MB configs for jumbo builders 2018-03-22 11:28:50 +00:00
include [heap,api] Introduce near-heap-limit callbacks. 2018-03-27 08:29:56 +00:00
infra [build] Used data deps from GN 2018-03-26 15:05:52 +00:00
samples [sample] fix potential memory leak. 2018-02-21 13:06:18 +00:00
src PPC: [turbofan] unify interpreter and JIT speculation poisoning 2018-03-28 05:09:18 +00:00
test Ship BigInts 2018-03-28 02:44:38 +00:00
testing Remove dummy files created for rolling googletest. 2018-03-27 05:55:56 +00:00
third_party Roll googletest to 1.8.0+. 2018-03-23 07:54:27 +00:00
tools Update mkgrokdump so that it can see maps/objects in RO_SPACE 2018-03-27 16:30:02 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +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
.gitignore Roll googletest to 1.8.0+. 2018-03-23 07:54:27 +00:00
.gn For building v8 using gn on aix_ppc64, linux_s390x and linux_ppc64(both LE and BE). 2017-05-12 01:35:09 +00:00
.vpython [tools] Add pypiwin32 pacakge to VPython config 2018-03-09 20:33:36 +00:00
.ycm_extra_conf.py [ycm] Switch from gnu++11 to gnu++14 2017-11-27 07:48:21 +00:00
AUTHORS Fix error message for octal escapes in templates 2018-03-08 18:57:45 +00:00
BUILD.gn [V8 Platform] Make CallOnWorkerThread use std::unique_ptr 2018-03-26 17:43:22 +00:00
ChangeLog [tools] Merge ChangeLog from latest release 2017-12-19 12:30:56 +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 Update V8 DEPS. 2018-03-28 04:00:08 +00:00
LICENSE Updates to the license information of third party components. 2015-06-16 12:37:50 +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 Adding a few more wasm related OWNERS. 2018-03-01 20:19:07 +00:00
PRESUBMIT.py [gyp] remove gyp files. 2018-02-08 20:04:06 +00:00
README.md [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
snapshot_toolchain.gni MIPS[64]: Generate snapshots on MIPS big-endian targets 2017-11-24 19:00:32 +00:00
WATCHLISTS Remove v8-x87-ports@ from WATCHLIST 2018-02-26 19:56:21 +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://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.