This differs from the patch that landed in so far as the libm target
is only defined if v8_use_libm_trig_functions is defined. Doing this
ensures building the 'all' target only builds libm is appropriate.
You can diff between patchset 1 and 2 to see the change.
This is controlled by a gn arg, which defaults to true for clang
builds. I'm limiting to clang builds as the macros for determining
endian type are currently clang specific. My understanding is that
chrome only uses clang. I can update the endian macros if necessary
for other targets.
Bug=v8:13477
Change-Id: I59cd450facc9fcb8987fe56e8cfc1c13522e1f6d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4070924
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Auto-Submit: Scott Violet <sky@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84620}
This reverts commit 4588fe544f.
Reason for revert: Fails on MSVC Windows builds: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win64%20-%20msvc%20-%20builder/4779/overview
Original change's description:
> adds the ability for v8 to use sin/cos from libm
>
> This is controlled by a gn arg, which defaults to true for clang
> builds. I'm limiting to clang builds as the macros for determining
> endian type are currently clang specific. My understanding is that
> chrome only uses clang. I can update the endian macros if necessary
> for other targets.
>
> Bug=v8:13477
>
> Change-Id: I604f99a2464b1d57f792bb339f9240ef043251e7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4000442
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Commit-Queue: Scott Violet <sky@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#84577}
Change-Id: I96a1571196fe658568c626e5d36559e496ba4d45
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4067303
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Matthias Liedtke <mliedtke@chromium.org>
Owners-Override: Matthias Liedtke <mliedtke@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84586}
This is controlled by a gn arg, which defaults to true for clang
builds. I'm limiting to clang builds as the macros for determining
endian type are currently clang specific. My understanding is that
chrome only uses clang. I can update the endian macros if necessary
for other targets.
Bug=v8:13477
Change-Id: I604f99a2464b1d57f792bb339f9240ef043251e7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4000442
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84577}
For x64 hosts, this already implicitly happened. For x64 hosts, this
doesn't change behavior, but it changes where in the gni file this
happens.
Now it also happens for arm64. The motivation is to be able to
cross-build chrome/win/arm64 on an arm64 mac host.
Bug: chromium:1382256
Change-Id: If995cdd3b21825e522a45fec5d273f9666509ee6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4013561
Commit-Queue: Nico Weber <thakis@chromium.org>
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84134}
This is a no-op in practice because clang_ was previously only
not used if `is_chromeos && !is_clang`, but all CrOS builds use
clang nowadays.
Bug: None
Change-Id: Ife7fa1bb2cf99107136a5fa5155dd611ed83b8e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4012059
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Nico Weber <thakis@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84107}
The GN build by now supports more cross build scenarios than
the gyp build ever did.
Change-Id: Ibe1c1ab75a0c6f9d32831a016dc119b27cff002b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4012138
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84106}
In the process, switch to using the Fuchsia GN SDK templates for
building the component and package.
gni/v8.cmx is retained temporarily until out-of-tree consumers have been
updated.
Bug: v8:12589
Change-Id: If08cfcbf579696482e7cd60a8b8b80bcc4c7dab2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3885881
Auto-Submit: Greg Thompson <grt@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Reviewed-by: Alexander Schulze <alexschulze@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83106}
In the process, switch to using the Fuchsia GN SDK templates for
building the component and package.
Bug: v8:12589
Change-Id: I9b5a82accb0da2067e83bc80d691133550ce82cd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3879501
Auto-Submit: Greg Thompson <grt@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Alexander Schulze <alexschulze@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83084}
The 2GB cage caused new OOMs on M106. While those issues are being
investigated, this CL returns the 4GB back. The pointer compression is
still enabled.
Bug: chromium:1325007, chromium:1354660
Change-Id: I4fa4fabece2910ca84913d8df201acfbdf4b26e2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3865004
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82834}
The infrastructure runs everything already in Python3, so this is
mostly a clean-up.
For MB, a python2 holdover was removed and new lint errors were
fixed.
The renames were automated with:
git grep -e "/usr/bin/python$" |
cut -d':' -f1 |
xargs
sed -i 's/#!\/usr\/bin\/python$/#!\/usr\/bin\/python3/1'
and
git grep -e "/usr/bin/env python$" |
cut -d':' -f1 |
xargs
sed -i 's/#!\/usr\/bin\/env python$/#!\/usr\/bin\/env python3/1'
Bug: v8:13148
Change-Id: If4f3c7635e72fa134798d55314ac1aa92ddd01bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3811499
Reviewed-by: Liviu Rau <liviurau@google.com>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82231}
This is a reland of commit 491de34bcc
co-authors: Ji Qiu <qiuji@iscas.ac.cn>
Alvise De Faveri Tron <elvisilde@gmail.com>
Usman Zain <uszain@gmail.com>
Zheng Quan <vitalyankh@gmail.com>
Original change's description:
> [riscv32] Add RISCV32 backend
>
> This very large changeset adds support for RISCV32.
>
> Bug: v8:13025
> Change-Id: Ieacc857131e6620f0fcfd7daa88a0f8d77056aa9
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3736732
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
> Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82053}
Bug: v8:13025
Change-Id: I220fae4b8e2679bdc111724e08817b079b373bd5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3807124
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82198}
This very large changeset adds support for RISCV32.
Bug: v8:13025
Change-Id: Ieacc857131e6620f0fcfd7daa88a0f8d77056aa9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3736732
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82053}
V8 was compiled for Fuchsia with optimize_speed instead of optimize_max
used on most other platfroms. There is no reason Fuchsia needs to be
different, so it's better to use optimize_max. It also allows to save
about 1MB on the binary size.
Bug: chromium:1343990
Change-Id: Ie4a07fbbfd8100def61bf7709d2c4e6cb74209f4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3759647
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Auto-Submit: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81698}
This CL introduces a compile flag v8_enable_inner_pointer_resolution_mb.
Behind it, it introduces a method `FindBasePtr` in `MemoryChunk`, which
implements inner pointer resolution using the chunk's marking bitmap.
This method is intended to be used for conservative stack scanning, to
resolve inner pointers to heap objects, at some point late in the
marking phase.
It also delays stack scanning during the marking phase of a full GC, to
ensure that marking has proceeded and most heap objects have already
been marked.
Bug: v8:12851
Change-Id: I40e291a86bb8d2587a2c1d9505574dde3c65eb16
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3703837
Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81404}
|exclude_imports| flag is set in some of the perfetto's proto_library
targets to indicate that we don't need to generate the proto-descriptor
for the protos included in those `x.proto` files. In this CL we use that
flag to conditionally pass `--include_imports` argument to protoc.
This is similar to the CL (https://crrev.com/c/2632759)
Bug: b:236945541
Change-Id: I0689003978096798d1e966ec8485cd6af7237804
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3721616
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Mohit Saini <mohitms@google.com>
Cr-Commit-Position: refs/heads/main@{#81356}
This CL introduces a compile flag v8_enable_inner_pointer_resolution_osb
behind which lies the experimental implementation of the object start
bitmap. It disassociates the object start bitmap from the compile flag
v8_enable_conservative_stack_scanning. At the moment the former flag is
a prerequisite for the latter, as conservative stack scanning requires
some mechanism for inner pointer resolution and the object start bitmap
provides one such mechanism.
Bug: v8:12851
Change-Id: I24c6b389453fbaefc79ae50c34c5ec7a1bf23347
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3717322
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81295}
Add a simple, linear-time scheduler to check whether two nodes can be
scheduled to a same basic block without actually building basic blocks.
Bug: v8:12716
Change-Id: I20506f28a9126f881b7e4748f54b12551967ba76
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3388910
Reviewed-by: Almothana Athamneh <almuthanna@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Cr-Commit-Position: refs/heads/main@{#81015}
With caged heap enabled, we can halve Member<> by storing only the least
significant half. The base of the heap is stored in a thread local
variable. The feature has therefore an implication that only single heap
is allowed per thread.
The feature is gated by the new GN arg:
cppgc_enable_pointer_compression.
Bug: chromium:1325007
Change-Id: Ic7f1ecb7b9ded57caad63d95bbc8e8ad6ad65031
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739979
Reviewed-by: Almothana Athamneh <almuthanna@chromium.org>
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Commit-Queue: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Auto-Submit: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80518}
It has been deprecated for a couple of years and there is no evidence of
anybody still using it.
Change-Id: I454f2f718aa50c295b29faf62cd0313a5e6e97d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3417495
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#79177}
The flag is required to allow passing in more debug information when
necessary.
Change-Id: I34e407ba57786c242aac8b6f6af258969de43efd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3468894
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79126}
The CL does following:
1) Makes sure young generation works and tests pass;
2) Provides CollectGarbageInYoungGenerationForTesting() that is needed
to support remaining tests in Blink;
3) Moved cppgc_enable_young_generation GN flag to v8.gni to refer to it
from Blink;
4) Bails out from marking TracedReferences in UnifiedHeapMarkingState;
5) Disables (temporarily) prompt freeing for young generation;
6) Fixes remembered set visitation for nullptr|kSentinel slots.
Bug: chromium:1029379
Change-Id: I5165fa22c8a0eaa708ef7a35a9978cb12e1cb13e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3429202
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Auto-Submit: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78901}
- Adds a GN flag to enable the feature
- Adds facets to manifest used by d8/unittests
- Adds some DCHECKS
- Uses zx_handle_t type to avoid global initialization/destructor
Bug: v8:11232
Change-Id: Ibd7766abefbf8c213393cf6365c34f9ff4e6ed7d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3420828
Reviewed-by: Wez <wez@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78886}
Moves g_root_vmar_base up in the file, so that we have all
the globals together.
Bug: v8:11232
Change-Id: Ic08cdf3399982962de255028be6718951a17aedb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3416249
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Samuel Groß <saelo@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78786}
The motivation is being able to build Chrome/Mac/Intel on an
Apple Silicon mac.
Depends on https://chromium-review.googlesource.com/c/chromium/src/+/3348020
- Correctly set v8_snapshot_toolchain when targeting x64 on an arm64
host (always use the clang_ toolchain for now since that's all
that's needed at the moment)
- Check V8_HOST_ARCH in immediate-crash.h. In V8 terminology, "host"
is the machine the snapshot generation runs on, while "target" is the
machine that V8 runs on when it JITs. IMMEDIATE_CRASH runs on the
host. Up to now, target arch x64 implied host arch x64 so the old code
happened to work too, but this is the correct macro (and it makes this
cross scenario work).
- In assembler-x64.cc, only compile the code that probes the current CPU
when running on an intel host. (There's an early return for snapshot
generation anyways.)
Bug: chromium:1280968
Change-Id: I4821a5994de8ed5f9e4f62184dc6ab6f5223bc3f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3348040
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78417}
Bug: v8:12008
Change-Id: I2e1d918a1370dae1e15919fbf02d69cbe48f63bf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3089095
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76308}
These are no longer enabled, so remove the code mitigation logic from
the codebase.
BUG=chromium:1003890
Change-Id: I536bb1732e8463281c21da446bbba8f47ede8ebe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3045704
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76256}
A generalization of Karatsuba's idea for even larger inputs.
Bug: v8:11515
Change-Id: I50eac2d313bf4217bf2f55ca2e64b5f120f40206
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2999870
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75598}
Make runtime-call-stats a compile-time flag. Disabling RCS saves roughly
1MB binary size on 64bit systems and yields minor performance
improvements.
Bug: v8:11299
Change-Id: Ia1db75e330a665db5251b685c164b96857e38d2d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2799766
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73910}
Building arm64 binaries on arm64 hosts works as long as you set
the correct options in args.gn. This patch teaches gm.py to do
that.
Building 32-bit arm binaries on arm64 hosts requires an extra
definition in snapshot_toolchain.gni (as well as some system
setup to support running 32-bit binaries).
Change-Id: I66c1f8f51932e2f5425033ef09181c31ea5d633e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2743889
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73323}
This avoids having to check both flags in two places, and prevents
people from trying to enable WebAssembly in lite mode (which would
currently build, but you still would not get Wasm support).
The downside is that the default value shown by `gn args --list` now
sais `""` instead of `true`.
R=machenbach@chromium.org, rmcilroy@chromium.orgCC=ecmziegler@chromium.org
Bug: v8:11238
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Change-Id: Ib2fe6c32cbdeb89895265bb898abf7284c560cc3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712783
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72957}
The v8_enable_webassembly=false configuration will not be a able to run
any wasm code, hence remove the whole asm to wasm translation from the
binary.
In order to skip specific unit tests in that configuration, we move the
definition of the v8_enable_webassembly gn argument from BUILD.gn to
v8.gni, such that it is available in all gn files.
R=ecmziegler@chromium.org, machenbach@chromium.org
Bug: v8:11238
Change-Id: Id4e290df3e42ffd2f05c377bdd3a368871815daf
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2712562
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72945}
This very large changeset adds support for RISC-V.
Bug: v8:10991
Change-Id: Ic997c94cc12bba6881bc208e66526f423dd0679c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2571344
Commit-Queue: Brice Dobry <brice.dobry@futurewei.com>
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72598}
If V8 is running in a context where Perfetto hasn't been initialized
(e.g., as part of mksnapshot), don't try to initialize track events
either.
Since perfetto::Tracing::IsInitialized() was only added recently, we
also roll Perfetto to the latest revision. This also requires updating
the proto_library GN template together with the underlying libprotobuf
dependency.
Bug: chromium:1006541
Change-Id: Icec626b7ed78264a81f1a80d73d60be3bde0d908
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2632590
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Sami Kyöstilä <skyostil@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72130}
The CPPGC_BUILD_IN_V8 define (used for tracing) isn't propagated from
v8_base_without_compiler to cppgc_base, which breaks build with
perfetto. Instead use a gn args to specify standalone builds (defaulted
to false) and use that to choose the right tracing implementation.
Bug: chromium:1056170
Change-Id: I70bce819d45fb133b6f932a50a5d027e39f3e5b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2555007
Auto-Submit: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71356}
This patch removes use of the deprecated sources_assignment_filter GN
feature from gni/proto_library.gni, since the extra descriptor files are
no longer being generated.
We also roll Perfetto to match the version used in Chrome and update
test expectations accordingly.
Bug: v8:10995
Change-Id: I65cb3b79feb6e5a7e5c8d99fdb8bf999a6048539
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2454079
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Auto-Submit: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70381}
Currently is_linux GN variable is set to true on building Chrome OS
but it is planned to be set false. This CL is the preparation to
keep the compatibility.
Bug: chromium:1110266
Test: Built locally.
Change-Id: Ibb9a57269f5a147e372fd33a473d9514379e1c68
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2405847
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69870}
With conservative stack scanning enabled, a snapshot of the call stack
upon entry to GC will be used to determine part of the root-set. When
the collector walks the stack, it looks at each value and determines
whether it could be a potential on-heap object pointer. However, unlike
with Handles, these on-stack pointers aren't guaranteed to point to the
start of the object: the compiler may decide hide these pointers, and
create interior pointers in C++ frames which the GC doesn't know about.
The solution to this is to include an object start bitmap in the header
of each page. Each bit in the bitmap represents a word in the page
payload which is set when an object is allocated. This means that when
the collector finds an arbitrary potential pointer into the page, it can
walk backwards through the bitmap until it finds the relevant object's
base pointer. To prevent the bitmap becoming stale after compaction, it
is rebuilt during object sweeping.
This is experimental, and currently only works with inline allocation
disabled, and single generational collection.
Bug: v8:10614
Change-Id: I28ebd9562f58f335f8b3c2d1189cdf39feaa1f52
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2375195
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69615}
This adds Google benchmark for microbenchmarking C++ code as an
optional dependency.
To enable, add the following to the .gclient before syncing
"custom_vars": {
"checkout_google_benchmark": True
}
Change-Id: Id0eab772dd71558906658ef4bb60e31acd665948
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2275964
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68663}
Fuzzilli is open source fuzzer by Samuel Groß (saelo@google.com)
that can be used to find bugs in v8 javascript engine. As we want
to automate fuzzing for current versions of v8, we want to merge
fuzzilli toolkit into v8 code, so that fuzzer can automatically
update to the newest version.
So far Fuzzilli has been maintained at
https://github.com/googleprojectzero/fuzzilli .
Bug tracker Id: https://bugs.chromium.org/p/v8/issues/detail?id=10571
Change-Id: I83ddc7e8bb31664c19e4044395bb9044a1c12031
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2201760
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68132}
We are currently porting Chromium over to use the Perfetto client
library for tracing[1]. When this mode is enabled, V8 should also use
the Perfetto library built by Chromium instead of building an
indepedendent copy. This patch enables that behavior, gated by the
|use_perfetto_client_library| flag set by Chromium.
We also roll Perfetto to the latest version, add a couple of missing
dependencies on v8_tracing and add a missing tracing category group.
[1] https://docs.google.com/document/d/1f7tt4cb-JcA5bQFR1oXk60ncJPpkL02_Hi_Bc6MfTQk/
(Internal) Bug: 155075662
Change-Id: I76d9626b1c83cb7a278dc3281b3a1db653ab8733
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2182637
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Commit-Queue: Sami Kyöstilä <skyostil@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67706}
