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Igor Sheludko 70e65f8961 [ext-code-space] Change compression scheme for Code pointers
Unlike the default scheme the ExternalCodeCompressionScheme allows
the cage to cross 4GB boundary at a price of making decompression
slightly more complex. The former outweighs the latter because it
gives us more flexibility in allocating the code range closer to
the .text section in the process address space. At the same time
decompression of the external code field happens relatively rarely
during GC.

Bug: v8:11880
Change-Id: Ia62bedd318f88c2147534ff000ab9fad354777f3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3899307
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84269}
2022-11-15 13:39:20 +00:00
.github [github] Close PRs created on the V8 GitHub mirror automatically 2021-01-12 08:39:59 +00:00
bazel Revert "[bazel] Add hide symbols from release / fast builds" 2022-10-21 13:08:38 +00:00
build_overrides [build] Remove obsolete gn flag 2021-01-11 15:50:59 +00:00
custom_deps
docs
gni v8: Explicitly set v8_snapshot_toolchain to host_toolchain when host_cpu == target_cpu 2022-11-08 19:29:22 +00:00
include DevTools: use a barrier to sync runIfWaitingForDebugger from multiple sessions 2022-11-10 20:23:01 +00:00
infra [infra] Add coverage builder configurations 2022-11-11 10:44:52 +00:00
samples [sandbox] Initialize sandbox during V8::Initialize 2022-07-15 09:29:32 +00:00
src [ext-code-space] Change compression scheme for Code pointers 2022-11-15 13:39:20 +00:00
test [ext-code-space] Change compression scheme for Code pointers 2022-11-15 13:39:20 +00:00
testing [test] Migrate cctest/test-api-accessors.cc to unittests/ 2022-05-17 08:27:55 +00:00
third_party add tebbi@ to more OWNERs 2022-11-08 09:14:50 +00:00
tools [tools] Fix update-vscode.sh 2022-11-15 11:15:10 +00:00
.bazelrc [bazel] Use v8_enable_handle_zapping only in debug builds. 2022-01-11 11:32:39 +00:00
.clang-format
.clang-tidy
.editorconfig
.flake8 remove swarming_client 2021-08-24 10:39:33 +00:00
.git-blame-ignore-revs
.gitattributes
.gitignore [cleanup] Add .idea to .gitignore 2022-08-22 19:54:38 +00:00
.gn [fuchsia] Add API target level default value 2022-08-29 14:46:45 +00:00
.mailmap Add .mailmap entries for jgruber 2022-08-04 08:53:02 +00:00
.style.yapf [tools] Add basic pointer compression to grokdump 2022-02-04 14:35:26 +00:00
.vpython3 Reland "[resultdb] Add ResultDB indicator" 2022-10-14 11:05:59 +00:00
.ycm_extra_conf.py [ycm] Fix YouCompleteMe config 2022-11-02 15:59:48 +00:00
AUTHORS Resolved an issue where an earlier error was not reported first in certain cases 2022-11-11 13:43:32 +00:00
BUILD.bazel [turboshaft] Port BranchElimination to turboshaft 2022-11-15 10:05:19 +00:00
BUILD.gn [valuserializer] Add a hard fail mode 2022-11-15 11:28:39 +00:00
CODE_OF_CONDUCT.md
codereview.settings
COMMON_OWNERS [owners] Add mliedtke to COMMON_OWNERS 2022-09-16 14:12:27 +00:00
DEPS Update V8 DEPS (trusted) 2022-11-12 03:53:52 +00:00
DIR_METADATA Add DIR_METADATA files to v8. 2020-10-20 22:12:28 +00:00
ENG_REVIEW_OWNERS Add mlippautz@ to ENG_REVIEW_OWNERS. 2022-10-06 18:48:33 +00:00
INFRA_OWNERS [infra] Add alexschulze@ as infra owner 2022-07-18 09:08:54 +00:00
INTL_OWNERS
LICENSE [mips32] Delete mips32 from v8 2022-09-13 07:54:54 +00:00
LICENSE.fdlibm
LICENSE.strongtalk
LICENSE.v8
LOONG_OWNERS [LOONG64] Add LoongArch64 backend 2021-08-16 13:05:19 +00:00
MIPS_OWNERS [mips] Add LiuYu to MIPS_OWNERS 2021-09-08 01:38:52 +00:00
OWNERS Make .ycm_extra_conf owned by COMMON_OWNERS 2022-11-07 09:51:53 +00:00
PPC_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
PRESUBMIT.py [gcmole] Simplify gcmole directives and add tests 2022-11-14 13:07:15 +00:00
README.md
RISCV_OWNERS Add Lu Yahan to RISC-V owners list 2021-09-13 16:35:00 +00:00
S390_OWNERS Adding myself to relevant OWNERS files. 2020-11-02 16:37:28 +00:00
WATCHLISTS Reland "[WATCHLISTS] Add riscv watch" 2022-08-19 07:33:57 +00:00
WORKSPACE [bazel] Remove zlib dependency 2022-08-17 15:30:25 +00:00

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.