The wasm interpreter was always single-threaded, and there are no plans
to change this. Still, there was a concept of threads, but with the
hard-coded constraint that there is always exactly one of them.
In order to clean up the code, and as a preparation to remove more
unneeded functionality before moving the interpreter over to the test
directory, this CL removes the concept of threads and merges the
{ThreadImpl} class into {WasmInterpreterInternals}.
Drive-by: Remove the dead {GetFrameCount} method.
R=ahaas@chromium.org
Bug: v8:10389
Change-Id: If65cdd21b34ce8debf8ba0f24dbeacec15e0a1d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2231354
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68204}
Since the interpreter cannot call out to JS any more, there cannot be
more than one activation at a time. Hence remove the concept of
activations.
R=ahaas@chromium.org
Bug: v8:10389
Change-Id: Ifda5624e192464a1aed2943787bc6860d1917719
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2219942
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68118}
Motivation:
In the wasm-gc proposal, structs and arrays are allowed to store
elements of packed types i8 and i16.
Changes:
- Add i8 and i16 to ValueType.
- Fix all case switches to handle the new cases.
- Add a couple helper methods to ValueType and improve the
implementation/usage of a couple more.
Bug: v8:7748
Change-Id: I527cfe5acf5d877fc38e4212174ba9f9de5c40ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2215046
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67994}
And a new flag --experimental-wasm-gc, which doesn't do anything yet.
Bug: v8:7748
Change-Id: I927d1d90559249db3ee9f8d240775d45098e52a6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2154197
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67215}
In preparation for adding reference types, which need an additional
parameter to indicate the referenced type.
Bug: v8:7748
Change-Id: If4023f3d9c7f42ed603b69c43356d2e8b81a0daa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2091471
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66687}
Most function signatures are created once and never changed. Hence pass
them as const pointer. This makes it clear in function signatures that
these parameters will not be modified.
This also avoids a few ugly const_casts where we were passing pointers
to constexpr FunctionSigs via non-const pointers.
R=jkummerow@chromium.org
Bug: v8:10155
Change-Id: Ieb658ab5582bff276f76babdaf7ddb8f72bd4790
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2072739
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66478}
Make WasmFeatures a proper class which uses an EnumSet under the hood.
This way, it inherits all behaviour of EnumSet like comparison, merge,
etc.
Accesses change from being simple field access into the struct to
actually bit tests in the EnumSet.
R=mstarzinger@chromium.org
Bug: v8:10019
Change-Id: I768f92b90ac0294156f4482defba5ce00bc70165
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1934334
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65184}
I don't know if there is another problem, but this change fixes all
problems in the test case. The fuzzer will eventually tell us if there
is another problem.
R=clemensh@chromium.org
Bug: chromium:1000503
Change-Id: I2f3ca9132e1b9e3f01e9b32604fb39b2272723f1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784278
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63547}
This reverts commit bf78435b2c.
Reason for revert: This CL is not what I wanted to land. I mixed up my local branches.
Original change's description:
> [wasm] Stage wasm-bigint
>
> The implementation on wasm-bigint has been done, as far as I can tell.
> There are no spec tests yet, only an out-dated copy of the original
> spec tests which don't pass anymore. Therefore I disabled all the tests
> for now and created a tracking bug at https://crbug.com/v8/9673.
>
> R=adamk@chromium.org
>
> Bug: v8:7741, v8:9673
> Change-Id: I015846cc6008ad266402b6835e634723a1a076da
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781050
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63541}
TBR=adamk@chromium.org,ahaas@chromium.org
Change-Id: I5e8a42ad01200c01446efe4ea50f8ae6fef2c174
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7741, v8:9673
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784279
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63546}
The implementation on wasm-bigint has been done, as far as I can tell.
There are no spec tests yet, only an out-dated copy of the original
spec tests which don't pass anymore. Therefore I disabled all the tests
for now and created a tracking bug at https://crbug.com/v8/9673.
R=adamk@chromium.org
Bug: v8:7741, v8:9673
Change-Id: I015846cc6008ad266402b6835e634723a1a076da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1781050
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63541}
This makes sure the language mode of the module is correctly propagated
through the WebAssembly module, so that exported functions are allocated
with the correct language mode. It extends the existing {ModuleOrigin}
enum to consist of three values now.
R=clemensh@chromium.org
TEST=mjsunit/regress/wasm/regress-985154
BUG=chromium:985154
Change-Id: Id7b566738b1e710cc5001b894022bcd0f2c01bc3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1708484
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62826}
The {InterpretWasmModuleForTesting} is used to determine whether a
module is cheap enough to execute the compiled code (there is a cap on
the number of executed instructions). If the module executes too much
code, {InterpretWasmModuleForTesting} returns {false}.
The check for a stack overflow was missing though, so it would return
{true} in that case, and the compiled code would be executed. This can
lead to timeouts.
R=ahaas@chromium.org
Bug: chromium:947909
Change-Id: I0b003963d3ca548f388fdf4ec4995c4199656f91
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1693011
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62617}
This CL was generated by an automatic clang AST rewriter using this
matcher expression:
callExpr(
callee(
cxxMethodDecl(
hasName("operator->"),
ofClass(isSameOrDerivedFrom("v8::internal::Object"))
)
),
argumentCountIs(1)
)
The "->" at the expression location was then rewritten to ".".
R=jkummerow@chromium.orgTBR=mstarzinger@chromium.org,verwaest@chromium.org,yangguo@chromium.org
Bug: v8:9183, v8:3770
No-Try: true
No-Tree-Checks: true
Change-Id: I0a7ecabdeafe51d0cf427f5280af0c7cab96869e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624209
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61764}
Code that is being moved primarily deal with layout of a JSObject,
accessing properties and elements, and map transitions.
NOTREECHECKS=true
NOTRY=true
Bug: v8:9247
Change-Id: Ibce5d5926ac4021c8d40c4dd109948775ce1da58
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1613994
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61638}
Add tests for tiering and lazy compilation with compilation hints. The
tests build modules and verify the {WasmCode}'s tier internally. The
module builder now supports compilation hints in CCTests.
Bug: v8:9003
Change-Id: I18d926c3b1ef3508835a51a9d1d86bfadcb5216e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1566522
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Frederik Gossen <frgossen@google.com>
Cr-Commit-Position: refs/heads/master@{#60916}
A testing method was missing a code ref scope, making fuzzers fail.
R=mstarzinger@chromium.org
Bug: chromium:952759
Change-Id: Ib9d485fad85f66ca358a769a4e52777f68367991
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1571605
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60909}
Using the Isolate's allocator when creating the WasmModule can lead to
use-after-free situations when the NativeModule is shared across
Isolates.
R=mstarzinger@chromium.org
Bug: v8:9079
Change-Id: I5a564852179cc5b9d4cbad2a002d3b6e14b01968
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1550404
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60605}
The build config inherited from Chromium only enables a subset
of the checks that UBSan supports. We want them all, so this
patch overrides what "is_ubsan" means for V8.
Bug: v8:3770
Change-Id: I1d0a7d994279272f13ff1d4ac9ed235fcbfc0951
Reviewed-on: https://chromium-review.googlesource.com/c/1443502
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59222}
We often use ResultBase or VoidResult to store or pass wasm errors
(errors with locations). This CL extracts a WasmError class which can
store an error (can also be empty), and Result<T> which stores an error
or a T (exactly one of them).
R=titzer@chromium.org
Bug: v8:8689
Change-Id: I3f5203559984a0ae8757e0130a9184957fa28df5
Reviewed-on: https://chromium-review.googlesource.com/c/1409365
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58827}
Moves allocation of the WasmModuleObject for asm.js code out of SyncCompileTranslatedAsmJS
since that is called when we are compiling the native context independent SharedFunctionInfo
and the WasmModuleObject requires a native context. Instead save the members required to
create the object in the AsmWasmData and create it during module instantiation. Note:
since the Wasm module is an implementation detail for asm_wasm code and isn't exposed,
this doeesn't have semantic change for asm.js code.
As part of this change, the AsmWasmData is changed from a FixedArray to a dedicated
struct. Some logic is also moved from module-compiler to wasm-engine to make the
seperation between Wasm SyncCompile and AsmJS SyncCompile more clear.
BUG=chromium:900535,v8:8395
Change-Id: Ia48469c095b0688f210aa86e7430c9ab4ea4b26b
Reviewed-on: https://chromium-review.googlesource.com/c/1345509
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57704}
Instead of returning 0xDEADBEEF, return a struct with proper
information. Otherwise a function returning 0xDEADBEEF would be
misidentified as trapping in the interpreter.
R=ahaas@chromium.org
Bug: chromium:906997
Change-Id: I92fc3a9972d76d2f8a5b313bf6be6eb027cfc1e9
Reviewed-on: https://chromium-review.googlesource.com/c/1344111
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57658}
Previously, this was just a field on the WasmResult, which is not
allowed according to the style guide.
A special r-value accessor for the value is needed for the cases where
the contained type is not copyable, e.g. unique_ptr.
R=titzer@chromium.org
Bug: v8:8238
Change-Id: Ia3c14c4c62c3c2e07f1dc4594f1bc9d1da88f91e
Reviewed-on: https://chromium-review.googlesource.com/c/1290974
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56823}
This CL introduces a set of configuration options implemented as
a struct of booleans that together comprise the set of enabled
or detected features. The configuration options replace command-line
flags that were checked deep in the implementation. As such, it is
necessary to plumb them through multiple levels of abstraction.
R=ahaas@chromium.orgCC=mstarzinger@chromium.org
BUG=chromium:868844
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I1b82f5826e4fd263f68e8cafcd923bac5818a637
Reviewed-on: https://chromium-review.googlesource.com/1163670
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55018}
This removes several GetIsolate calls from Map:: methods and instead
passes the Isolate in. This is a very noisy change but mostly it is just
adding Isolate to method declarations and forwarding it on.
Bug: v8:7786
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I159505e50a9462d01066f14da0fcc29762bd5531
Reviewed-on: https://chromium-review.googlesource.com/1075267
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53826}
We currently store the {WasmModule} (generated during decoding) in a
unique_ptr and pass ownership to the {WasmModuleObject} after
compilation.
I plan to move the {Managed<NativeModule>} from {WasmCompiledModule} to
{WasmModuleObject}, which will force us to create the
{WasmModuleObject} *before* compilation, so that the {CompilationState}
is available during compilation.
This CL prepares that refactoring by storing the {WasmModule} in a
{shared_ptr} in the {AsyncCompileJob}. Note that it will eventually be
stored in a {shared_ptr} in the {Managed} anyway.
R=titzer@chromium.org
Change-Id: Iac5e3c1067af2801e938f77a455a68807801526a
Reviewed-on: https://chromium-review.googlesource.com/1104117
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53801}
This change makes lifetime management of WasmCode much simpler.
By using the WasmInstanceObject as the context for WASM code execution,
including the pointer to the memory base and indirect function tables,
this keeps the instance alive when WASM code is on the stack, since
the instance object is passed as a parameter and spilled onto the stack.
This is in preparation of sharing the code between instances and
isolates.
Bug: v8:7424
R=mstarzinger@chromium.org
Change-Id: Ia35a3ce91a8f6135767fa764e185cde8bbc889f4
Reviewed-on: https://chromium-review.googlesource.com/997932
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52436}
This reverts commit 57bf0bfefb.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> [wasm] Merge the WasmContext into WasmInstanceObject
>
> This change makes lifetime management of WasmCode much simpler.
> By using the WasmInstanceObject as the context for WASM code execution,
> including the pointer to the memory base and indirect function tables,
> this keeps the instance alive when WASM code is on the stack, since
> the instance object is passed as a parameter and spilled onto the stack.
> This is in preparation of sharing the code between instances and
> isolates.
>
> Bug: v8:7424
>
> Change-Id: Ic2e4b7bcc2feb20001d0553a615a8a9dff36317e
> Reviewed-on: https://chromium-review.googlesource.com/958520
> Commit-Queue: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52361}
TBR=mstarzinger@chromium.org,titzer@chromium.org,ahaas@chromium.org,clemensh@chromium.org
Change-Id: I653e27b46dbc43ad773eda4292d521a508f42d79
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7424
Reviewed-on: https://chromium-review.googlesource.com/995418
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52364}
This change makes lifetime management of WasmCode much simpler.
By using the WasmInstanceObject as the context for WASM code execution,
including the pointer to the memory base and indirect function tables,
this keeps the instance alive when WASM code is on the stack, since
the instance object is passed as a parameter and spilled onto the stack.
This is in preparation of sharing the code between instances and
isolates.
Bug: v8:7424
Change-Id: Ic2e4b7bcc2feb20001d0553a615a8a9dff36317e
Reviewed-on: https://chromium-review.googlesource.com/958520
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52361}
This is a further step to separate the implementation of the JavaScript
API from the internals of the WASM implementation. Now, wasm-js.cc
only needs to interact with the WASM engine and is (almost) independent
of module-decoder.h and module-compiler.h.
Also, move SyncCompileAndInstantiate() into wasm-module-runner.cc.
Bug: v8:7316
R=clemensh@chromium.org, mstarzinger@chromium.org
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I7765af54ac16f53a5ff88c17a22c5d36bacaf926
Reviewed-on: https://chromium-review.googlesource.com/870871
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50679}
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}
This patch normalizes the casing of hexadecimal digits in escape
sequences of the form `\xNN` and integer literals of the form
`0xNNNN`.
Previously, the V8 code base used an inconsistent mixture of uppercase
and lowercase.
Google’s C++ style guide uses uppercase in its examples:
https://google.github.io/styleguide/cppguide.html#Non-ASCII_Characters
Moreover, uppercase letters more clearly stand out from the lowercase
`x` (or `u`) characters at the start, as well as lowercase letters
elsewhere in strings.
BUG=v8:7109
TBR=marja@chromium.org,titzer@chromium.org,mtrofin@chromium.org,mstarzinger@chromium.org,rossberg@chromium.org,yangguo@chromium.org,mlippautz@chromium.org
NOPRESUBMIT=true
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I790e21c25d96ad5d95c8229724eb45d2aa9e22d6
Reviewed-on: https://chromium-review.googlesource.com/804294
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49810}
Typically the interpreter returns 0xdeadbeef to indicate an exception.
However, for stack overflows a normal exception is used. The interpreter
requires an activation, however, to deal with normal exceptions. With
this CL we start an activation before we execute the fuzzer input in the
interpreter.
R=clemensh@chromium.org
Bug: chromium:781103
Change-Id: I4fc3a18bfc2076aab9ff7d2324a3311fe222954a
Reviewed-on: https://chromium-review.googlesource.com/776835
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49545}
Note that this also makes it possible to move several classes
into the module-compiler.cc file and inline their implementations.
This also allows removing several uses of wasm-module.h from
other places in V8 that include wasm-objects.h.
R=yangguo@chromium.org,clemensh@chromium.org,ahaas@chromium.org
Bug:
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I303ee2bb49dc53c951d377a1b65699c1e0e91da7
Reviewed-on: https://chromium-review.googlesource.com/687494
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48204}
In the test case the module contained a memory which got exported by the
name 'main'. The fuzzer crashed when it tried to cast the memory to a
function to execute it. This CL checks that 'main' is a function before
doint the cast.
R=clemensh@chromium.org
Bug: chromium:763349
Change-Id: I9a21413c8038a7547f8b59057afea2870b15499a
Reviewed-on: https://chromium-review.googlesource.com/659978
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47941}
Even though we were generating additional arguments with default value
in the case that the caller was not providing enough, we then passed
the original pointer, leading to potential out-of-bounds accesses.
R=ahaas@chromium.org
Bug: chromium:763294,chromium:763297
Change-Id: Id18622d0d40e0408e26a5fc6f97494b5f9e18d17
Reviewed-on: https://chromium-review.googlesource.com/657699
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47930}
The wasm-async fuzzer uses the bytes provided by the fuzzer engine
directly as wasm module bytes, compiles them with async compilation, and
then tries to execute the "main" function of the module. This "main"
can have an infinite loop which causes a timeout in the fuzzer. With
this CL the "main" function is first executed with the interpreter. If
the execution in the interpreter finishes within 16k steps, which means
that there is no infinite loop, also the compiled code is executed.
I added the raw fuzzer input as a test case because in this case I
really want to test the fuzzer and not V8.
R=clemensh@chromium.org
Bug: chromium:761784
Change-Id: Id1fe5da0da8670ec821ab9979fdb9454dbde1162
Reviewed-on: https://chromium-review.googlesource.com/651046
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47874}
This is a pure renaming CL; no functionality changes.
R=mtrofin@chromium.org
Bug:
Change-Id: I2f8262bdb17b9256d5b66fad56a7e51063f6f0d9
Reviewed-on: https://chromium-review.googlesource.com/610007
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47282}
This is part of the effort to consolidate the ownership of
wasm instantiation/specialization parameters.
This change is focused solely on the interpreter part of that effort, to
verify we're not regressing performance in interpreter benchmarks.
There are two aspects being addressed:
- dataflow-wise, we always fetch the interpreter's memory view from the
runtime objects (i.e. WasmInstanceObject/WasmCompiledModule). This is
consistent with how other instance-specific information is obtained
(e.g. code, indirect functions).
- representation-wise, we do not reuse ModuleEnv/WasmInstance just for
the memory view, because it is surprising that other instance info isn't
accessed from there.
Bug:
Change-Id: I536fbffd8e1f142a315fa1770ba9b08319f56a8e
Reviewed-on: https://chromium-review.googlesource.com/602083
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47205}
This allows to reuse the class e.g. in the baseline compiler.
R=titzer@chromium.org
Change-Id: I7251af16e8c74f267834a9cefb676edf3c9f3a07
Reviewed-on: https://chromium-review.googlesource.com/570020
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46735}
This is a reland of 5648aad553.
Previous compile error should be fixed by disabling strict aliasing
assumptions on gyp: https://chromium-review.googlesource.com/c/571806
Original change's description:
> [wasm] Don't store global handles in the interpreter
>
> Storing global handles in the interpreter is dangerous, because the
> global handles are strong roots into the heap. The interpreter itself is
> referenced from the heap via a Managed. Hence the interpreter keeps the
> instance alive, while the instance keeps the Managed alive. So the GC
> will never collect them.
>
> This CL refactors this to only store the handle to the instance object
> while executing in the interpreter, and clearing it when returning.
> It also removes the cache of import wrappers, as it should not be
> performance critical, but keeps lots of objects alive. If it turns out
> to be performance critical, we will have to reintroduce such a cache
> stored in the WasmDebugInfo object.
>
> R=titzer@chromium.org
> CC=ahaas@chromium.org
>
> Bug: chromium:610330
> Change-Id: I54b489dadc16685887c0c1a98da6fd0df5ad7cbb
> Reviewed-on: https://chromium-review.googlesource.com/567058
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46629}
TBR=titzer@chromium.org
Bug: chromium:610330
Change-Id: Ic7836b1b1a044a89f2138f0c76f92acd3a1b2f2b
Reviewed-on: https://chromium-review.googlesource.com/570578
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46679}
This reverts commit 5648aad553.
Reason for revert: Compile error on mips:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Mips%20-%20builder/builds/10732
Original change's description:
> [wasm] Don't store global handles in the interpreter
>
> Storing global handles in the interpreter is dangerous, because the
> global handles are strong roots into the heap. The interpreter itself is
> referenced from the heap via a Managed. Hence the interpreter keeps the
> instance alive, while the instance keeps the Managed alive. So the GC
> will never collect them.
>
> This CL refactors this to only store the handle to the instance object
> while executing in the interpreter, and clearing it when returning.
> It also removes the cache of import wrappers, as it should not be
> performance critical, but keeps lots of objects alive. If it turns out
> to be performance critical, we will have to reintroduce such a cache
> stored in the WasmDebugInfo object.
>
> R=titzer@chromium.org
> CC=ahaas@chromium.org
>
> Bug: chromium:610330
> Change-Id: I54b489dadc16685887c0c1a98da6fd0df5ad7cbb
> Reviewed-on: https://chromium-review.googlesource.com/567058
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46629}
TBR=titzer@chromium.org,clemensh@chromium.org
Change-Id: Ifadfb885f937f37bb3eab4732a97f20ff40c2583
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:610330
Reviewed-on: https://chromium-review.googlesource.com/569962
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46630}
