This can protect against refactoring bugs when adding fields to an
aggregate-initialized struct.
Change-Id: Id2e9824a1adb8bf5dbdc3775dc59ee9f18c43412
Reviewed-on: https://chromium-review.googlesource.com/960324
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51907}
This is a move-only CL (except includes cleanup).
Bug: v8:6666
Change-Id: I28422b4a21074e642e8d5c9b3a563ecafdafbda7
Reviewed-on: https://chromium-review.googlesource.com/957087
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51838}
Implement in-place weak reference handling in GC.
Turn FeedbackVector::optimized_code_or_smi into an in-place weak reference (this
is the only in-place weak reference at this point).
(See bug for design doc.)
BUG=v8:7308
TBR=yangguo@chromium.org
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I16d65dc768f10ed431252e23a0df07bee9063534
Reviewed-on: https://chromium-review.googlesource.com/948493
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51731}
Implement in-place weak reference handling in GC.
Turn FeedbackVector::optimized_code_or_smi into an in-place weak reference (this
is the only in-place weak reference at this point).
(See bug for design doc.)
BUG=v8:7308
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I0f9f992cb4ee0457c40b7c868317dfb607bfb906
Reviewed-on: https://chromium-review.googlesource.com/873638
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51722}
This enables the v8_enable_embedded_builtins gn flag on non-ia32 builds
and adds a new --stress-off-heap-code test mode to fyi bots.
v8_enable_embedded_builtins=true changes accesses to constants and
external references to go through the root list in builtins code.
--stress-off-heap-code copies builtins code off-heap on isolate
creation.
A few drive-by-fixes:
- ensure that we actually inspect the correct builtin during
isolate-independence testing.
- relax tests to decrease maintenance (now we only fail if a builtin
should be isolate-independent but isn't).
- switch to a different off-heap-trampoline register on arm due to
conflicts with custom stub linkages.
Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng
Bug: v8:6666
Change-Id: I09ad3c75cb4342f4c548ea780f275993730896c8
Reviewed-on: https://chromium-review.googlesource.com/934281
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Hablich <hablich@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51717}
This changes the encoding of the {HandlerTable} from an array of Smi
values to a byte array. It allows embedding of said array into the
instruction stream of {Code} objects (similar to how safepoint tables
work). For interpreted bytecode the table is attached as a {ByteArray}
to the bytecode.
The advantage of this approach is a more compact encoding and also the
ability to move such tables easily off the GC'ed heap if needed (as is
done for WebAssembly code for example).
R=jarin@chromium.org
Change-Id: I3320415dff69b3d1053825bda0d667a28232bf6d
Reviewed-on: https://chromium-review.googlesource.com/934642
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51589}
We'll soon also host other configurations for general fuzzing, not only
correctness fuzzing in the new tools/clusterfuzz folder.
TBR=yangguo@chromium.org
Bug: chromium:813833
Change-Id: Icd966bfec91cc547522bad5d1a842500b554754f
Reviewed-on: https://chromium-review.googlesource.com/930331
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51480}
https://chromium-review.googlesource.com/911731 made things build with
this on x64, and https://chromium-review.googlesource.com/923528 added
x86, arm, arm64, mips, mips64. This are all the configs covered by
v8's trybots. If this breaks yet another config I don't know about,
these two CLs should give you a good idea how to fix them.
Bug: chromium:812686
Change-Id: Ib9a9714a070dd876a8f5911a1bc974ffd7aa3995
Reviewed-on: https://chromium-review.googlesource.com/928842
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51446}
This is a step towards off-heap (and eventually isolate-independent)
builtins.
Off-heap code cannot use the standard CallStub/CallRuntime mechanisms,
since they directly embed the callee code object pointer within the
caller. There are two main issues with that: 1. the callee may be
moved by GC, and 2. the pc-relative addressing we currently use breaks
(i.e. ends up pointing to a random spot on the heap) when moving the
caller off-heap.
This CL addresses that by introducing a constants list stored on the
roots array. Instead of embedding code targets, we now have the option
of loading them from constants list. The code sequence is:
REX.W movq rax,[r13+0x4a0] // Load the constants cache.
REX.W movq rdx,[rax+0xf] // From there, load the code target.
...
REX.W addq rdx,0x5f // Add instruction_start.
call rdx
There's no visible performance impact on the web tooling benchmark.
This list will later be extended to also contain other constants such
as Strings.
Bug: v8:6666
Change-Id: Ifcf67d1f682804ba0b6d3d0383216e16575b6bf5
Reviewed-on: https://chromium-review.googlesource.com/923729
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51434}
Moves BackgroundParsingTask to compiler.cc and renames as BackgroundCompileTask.
This moves code out api.cc and parsing/ into compiler.cc where it belongs.
BUG=v8:7311,v8:5203
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I08a72ab8a6bdb480f519d42b36875d347b801ddc
Reviewed-on: https://chromium-review.googlesource.com/919481
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51421}
This flag will be used to toggle things for isolate-independent
builtins during development.
Bug: v8:6666
Change-Id: I8a97f08b3d677a01a2a55a4c6445e71e74471f51
Reviewed-on: https://chromium-review.googlesource.com/924067
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51325}
Change to v8/BUILD.gn regarding GN build of V8. Excluding platform-posix-time.h
and platform-posix-time.cc from the sources list on AIX os. The changes affect
AIX only.
Bug: chromium:616029
Change-Id: I5e5d46aa4c62f70544ff593294e459c607a03c67
Reviewed-on: https://chromium-review.googlesource.com/897124
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51183}
Move the class declaration for SpeciesCreateByLength to a header file
so that we can share more TypedArray CSA code.
Delete the C++ implementation of species create for typed arrays
because it is no longer used.
Change-Id: I7c43b8ef144ba9a8ce12516f7cb8fb570491cb26
Reviewed-on: https://chromium-review.googlesource.com/904987
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51139}
We want to be able to use this from other builtins as well, so move it
to somewhere common.
Also adds typing and cleans up the coding style to match newer CSA code
a bit more. GrowableFixedArray is now a subclass of CodeStubAssembler
to make things easier and cleaner. The growing strategy has also been
slightly changed so that empty arrays can be produced.
Change-Id: I20cbd1069d489a6875804736d3e5abab80d0f777
Reviewed-on: https://chromium-review.googlesource.com/901324
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51107}
This reverts commit b012816155.
Reason for revert: Still breaks the bot:
https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20msvc/builds/1217
Original change's description:
> [builtins] Add .incbin cctest
>
> Just to ensure this is portable across all platforms.
>
> Credits go to https://github.com/graphitemaster/incbin, bits of the
> .incbin code were taken from there. Thanks!
>
> Reland of https://crrev.com/c/881181
>
> Bug: v8:6666
> Change-Id: I5c0dbf56b1c987fd88607dca69b39d65b59cdefc
> Reviewed-on: https://chromium-review.googlesource.com/895597
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51042}
TBR=machenbach@chromium.org,jgruber@chromium.org
Change-Id: I41a48908b6e0ff6a28beb8b28a1a9a739302081a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6666
Reviewed-on: https://chromium-review.googlesource.com/897788
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51044}
Just to ensure this is portable across all platforms.
Credits go to https://github.com/graphitemaster/incbin, bits of the
.incbin code were taken from there. Thanks!
Reland of https://crrev.com/c/881181
Bug: v8:6666
Change-Id: I5c0dbf56b1c987fd88607dca69b39d65b59cdefc
Reviewed-on: https://chromium-review.googlesource.com/895597
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51042}
The wasm call fuzzer is superseded by the wasm compile fuzzer, thus
remove it.
The chromium side will land in https://crrev.com/c/895531.
R=ahaas@chromium.org
Change-Id: I211d9f8ad2ca5432dbbc6ecce0b6e13760f1af60
Reviewed-on: https://chromium-review.googlesource.com/895534
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51034}
If enabled, this mode moves code for isolate-independent builtins off
the JS heap at Isolate creation. The Code object itself is rewritten
to tail-call the off-heap instruction stream.
Drive-by-fix: Support lazy deserialization in asm-wasm instantiation.
Bug: v8:6666
Change-Id: Ic109527ff478cfc6e8942e924413fc7532da6eaf
Reviewed-on: https://chromium-review.googlesource.com/888562
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51015}
For mips, if 'mips_arch_variant=="r6"' and if 'mips_use_msa' flag is set
to 'true', then test-run-wasm-simd tests won't be skipped for mips. It
will also force 'MIPS_SIMD' bit in CpuFeatures to be set.
ARM processors are assumed to support SIMD.
Change-Id: Iea668b97ef995ca4949ddbf2ffc734aad89d3aa3
Reviewed-on: https://chromium-review.googlesource.com/868430
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#50981}
This makes the ArrayBuiltinsAssembler consistent with the StringBuiltinsAssembler
and paves the way for tools that expect the assemblers to have a common structure.
Change-Id: I7470fc2cf144f9cc2fdbcee99b31daed267550be
Reviewed-on: https://chromium-review.googlesource.com/889933
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50920}
This adds the benchmarks suite to the deopt fuzzer and removes the
obsolete deopt configs, which since a while are part of the num-fuzz
configs.
TBR=sergiyb@chromium.org
Bug: v8:6900
Change-Id: I9202e2a66a132eca5940b4444fda97816b034e54
Reviewed-on: https://chromium-review.googlesource.com/876085
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50720}
This fuzzer randomly generates calls to regexp builtins, runs each on
the slow and fast path, and verifies that their result is the same.
Change-Id: Ia91b0c8afcdaf64835a9bb7b9a470610fbb75fc8
Reviewed-on: https://chromium-review.googlesource.com/833922
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50670}
This is the first in a series of CLs that will separate the JS API
from the implementation of WebAssembly by bottlenecking interactions
through the WasmEngine. In the long run, the JS API and much of V8
should rely only on the WasmEngine interface, which will represent
the "public interface" for embedding WebAssembly.
Next: hide compilation-related methods behind WasmEngine.
Bug: v8:7316
Change-Id: I93404f0dc8a201ae99d30b4c1ca34606e3dddbca
Reviewed-on: https://chromium-review.googlesource.com/868590
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50660}
This will switch on various testing features in sanitizer builds and
for correctness fuzzer builds.
Currently we group enabling the slow-path runtime flag and allocation
timeout for atomic gc stress, but more features could be added in the
future.
This will enable gc fuzzer, clusterfuzz and correctness fuzzer to use
both slow-path and atomic gc stress in release sanitizer builds.
Bug: v8:6972
Change-Id: I5cade68241a8a0711f8a388be7e1543aab0035fa
Reviewed-on: https://chromium-review.googlesource.com/869932
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50656}
This CL makes a fuzzer out of the cctest
test-multiple-return/ReturnMultipleRandom. The fuzzer creates a
CallDescriptor with input parameters and returns, and a function which
maps input parameters to returns. The fuzzer then calls this function
with a wrapper which checks that the correct mapping happened.
R=clemensh@chromium.org
Change-Id: Ib89c4063638baae69540a44486d7b2e9d13f8c1f
Reviewed-on: https://chromium-review.googlesource.com/859768
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50532}
This CL centralizes constants related to decoding from several places
into one place and makes it no longer necessary to include
wasm-opcodes.h for some simple constants.
R=clemensh@chromium.org
Bug:
Change-Id: I53aa81e34167df467bc7455b717bf67083033943
Reviewed-on: https://chromium-review.googlesource.com/859764
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50503}
Otherwise dynamic linking with dlopen, as is the case with Node.js
addons, would not work.
R=fhinkel@chromium.org
Bug: v8:6105
Change-Id: I5a884afc003fdfdb9de7e9b0c736f1894ba0019a
Reviewed-on: https://chromium-review.googlesource.com/850112
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50384}
This adds the gn flag 'v8_untrusted_code_mitigations', which defaults to
true. If false, the DISABLE_UNTRUSTED_CODE_MITIGATIONS preprocessor
macro will be defined, which sets the default for the
--untrusted-code-mitigations runtime flag to false.
R=machenbach@chromium.org, hablich@chromium.org
CC=bmeurer@chromium.org
Bug: chromium:798964
Change-Id: Ief037e194dc9eeb7fe224b5d414a4ea8e69beb20
Reviewed-on: https://chromium-review.googlesource.com/852074
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50380}
