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eholk eaed31c5f5 [wasm] Add guard regions to end of WebAssembly.Memory buffers 
With this change, WebAssembly.Memory objects have backing stores allocated as an
8GB region where everything beyond the size of the Wasm heap is inaccessible.

GrowMemory is now implemented by changing the protection on the guard regions to
make the new portions of the heap accessible.

Guard pages are not enabled by default, but this change adds a flag and a test
variant to make sure we get test coverage on them.

BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277

Review-Url: https://codereview.chromium.org/2396433008
Cr-Commit-Position: refs/heads/master@{#41089}
2016-11-17 20:29:13 +00:00

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# Copyright 2011 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
[
[ALWAYS, {
# All tests prefixed with 'Bug' are expected to fail.
'test-api/Bug*': [FAIL],
##############################################################################
# BUG(382): Weird test. Can't guarantee that it never times out.
'test-api/ApplyInterruption': [PASS, TIMEOUT],
# These tests always fail. They are here to test test.py. If
# they don't fail then test.py has failed.
'test-serialize/TestThatAlwaysFails': [FAIL],
'test-api/SealHandleScope': [FAIL],
# This test always fails. It tests that LiveEdit causes abort when turned off.
'test-debug/LiveEditDisabled': [FAIL],
# This test always fails. It tests that DisallowJavascriptExecutionScope
# works as intended.
'test-api/DisallowJavascriptExecutionScope': [FAIL],
# TODO(gc): Temporarily disabled in the GC branch.
'test-log/EquivalenceOfLoggingAndTraversal': [PASS, FAIL],
# We do not yet shrink weak maps after they have been emptied by the GC
'test-weakmaps/Shrinking': [FAIL],
'test-weaksets/WeakSet_Shrinking': [FAIL],
# Boot up memory use is bloated in debug mode.
'test-mark-compact/BootUpMemoryUse': [PASS, PASS, ['mode == debug', FAIL]],
# This tests only that the preparser and parser agree, so there is no point in
# running several variants. Note that this still takes ages, because there
# are actually 13 * 38 * 5 * 128 = 316160 individual tests hidden here.
'test-parsing/ParserSync': [PASS, NO_VARIANTS],
# This tests only the type system, no point in running several variants.
'test-hydrogen-types/*': [PASS, NO_VARIANTS],
'test-types/*': [PASS, NO_VARIANTS],
'test-ast-types/*': [PASS, NO_VARIANTS],
# This tests API threading, no point in running several variants.
# They are also slow in debug mode.
'test-api/Threading*': [PASS, NO_VARIANTS, ['mode == debug', SLOW]],
# BUG(2999). The cpu profiler tests are notoriously flaky.
'test-cpu-profiler/CpuProfileDeepStack': [SKIP],
'test-cpu-profiler/CollectCpuProfile': [SKIP],
'test-cpu-profiler/HotDeoptNoFrameEntry': [SKIP],
'test-cpu-profiler/SampleWhenFrameIsNotSetup': [SKIP],
# BUG(v8:4358). Hangs flakily.
'test-debug/ProcessDebugMessagesThreaded': [SKIP],
# BUG(2340). Preprocessing stack traces is disabled at the moment.
'test-heap/PreprocessStackTrace': [FAIL],
# BUG(4333). Function name inferrer does not work for ES6 clases.
'test-func-name-inference/UpperCaseClass': [FAIL],
'test-func-name-inference/LowerCaseClass': [FAIL],
# BUG(3742).
'test-mark-compact/MarkCompactCollector': [PASS, ['arch==arm', NO_VARIANTS]],
# Test that serialization with unknown external reference fails.
'test-serialize/SnapshotCreatorUnknownExternalReferences': [FAIL],
############################################################################
# Slow tests.
'test-debug/CallFunctionInDebugger': [PASS, ['mode == debug', SLOW]],
'test-strings/StringOOM*': [PASS, ['mode == debug', SKIP]],
'test-serialize/CustomSnapshotDataBlobImmortalImmovableRoots': [PASS, ['mode == debug', SKIP]],
}], # ALWAYS
##############################################################################
['arch == arm64', {
'test-cpu-profiler/CollectDeoptEvents': [PASS, FAIL],
'test-api/Bug618': [PASS],
# BUG(v8:3385).
'test-serialize/StartupSerializerOnceRunScript': [PASS, FAIL],
'test-serialize/StartupSerializerTwiceRunScript': [PASS, FAIL],
# BUG(v8:3154).
'test-heap/ReleaseOverReservedPages': [PASS, FAIL],
# BUG(v8:3155).
'test-strings/OneByteArrayJoin': [PASS, ['mode == debug', FAIL]],
# BUG(v8:3247).
'test-mark-compact/NoPromotion': [SKIP],
# BUG(v8:3446).
'test-mark-compact/Promotion': [PASS, FAIL],
# BUG(v8:3434).
' test-api/LoadICFastApi_DirectCall_GCMoveStubWithProfiler': [SKIP],
}], # 'arch == arm64'
['arch == arm64 and simulator_run == True', {
# Pass but take too long with the simulator.
'test-api/ExternalArrays': [PASS, TIMEOUT],
}], # 'arch == arm64 and simulator_run == True'
['arch == arm64 and mode == debug and simulator_run == True', {
# Pass but take too long with the simulator in debug mode.
'test-api/ExternalDoubleArray': [SKIP],
'test-api/ExternalFloat32Array': [SKIP],
'test-api/ExternalFloat64Array': [SKIP],
'test-api/ExternalFloatArray': [SKIP],
'test-api/Float32Array': [SKIP],
'test-api/Float64Array': [SKIP],
}], # 'arch == arm64 and mode == debug and simulator_run == True'
##############################################################################
['asan == True', {
# Skip tests not suitable for ASAN.
'test-assembler-x64/AssemblerX64XchglOperations': [SKIP],
# BUG(v8:5243).
'test-cpu-profiler/JsNative1JsNative2JsSample': [SKIP],
'test-cpu-profiler/JsNativeJsRuntimeJsSample': [SKIP],
'test-cpu-profiler/JsNativeJsRuntimeJsSampleMultiple': [SKIP],
'test-cpu-profiler/JsNativeJsSample': [SKIP],
}], # 'asan == True'
##############################################################################
['msan == True', {
# ICU upstream issues.
'test-strings/CountBreakIterator': [SKIP],
# Slow tests.
'test-api/Threading*': [PASS, SLOW],
}], # 'msan == True'
##############################################################################
['no_snap == True', {
# Slow tests.
'test-api/ExternalWrap': [PASS, SLOW],
'test-api/FastReturnValues*': [PASS, SLOW],
'test-decls/CrossScriptReferences_Simple2': [PASS, SLOW],
}], # 'no_snap == True'
##############################################################################
# TODO(machenbach): Fix application of '*'. Nosnap windows needs a separate
# section to not overwrite the expectations for TestThatAlwaysFails.
['no_snap == True and system == windows', {
# Windows doesn't support nosnap mode.
'test-serialize/*': [SKIP],
}], # 'no_snap == True and system == windows'
##############################################################################
['system == windows', {
# BUG(3331). Fails on windows.
'test-heap/NoWeakHashTableLeakWithIncrementalMarking': [SKIP],
# BUG(v8:4573).
'test-api/MultipleIsolatesOnIndividualThreads': [PASS, NO_VARIANTS],
# BUG(v8:4642).
'test-lockers/LockAndUnlockDifferentIsolates': [PASS, NO_VARIANTS],
# BUG(v8:2999,v8:4751).
'test-cpu-profiler/CollectDeoptEvents': [SKIP],
'test-cpu-profiler/FunctionCallSample': [SKIP],
'test-cpu-profiler/JsNativeJsRuntimeJsSample': [SKIP],
'test-cpu-profiler/JsNativeJsRuntimeJsSampleMultiple': [SKIP],
'test-cpu-profiler/JsNativeJsSample': [SKIP],
'test-cpu-profiler/JsNative1JsNative2JsSample': [SKIP],
# BUG(5193): Flaky timeout.
'test-sampler/LibSamplerCollectSample': [PASS, ['arch == x64', SKIP]],
}], # 'system == windows'
##############################################################################
['arch == arm', {
'test-cpu-profiler/CollectDeoptEvents': [PASS, FAIL],
# BUG(355): Test crashes on ARM.
'test-log/ProfLazyMode': [SKIP],
# BUG(1075): Unresolved crashes.
'test-serialize/StartupSerializerOnce': [SKIP],
'test-serialize/StartupSerializerTwice': [SKIP],
'test-serialize/StartupSerializerOnceRunScript': [SKIP],
'test-serialize/StartupSerializerTwiceRunScript': [SKIP],
############################################################################
# Slow tests.
'test-api/Threading*': [PASS, SLOW],
}], # 'arch == arm'
##############################################################################
['arch == mipsel or arch == mips', {
'test-cpu-profiler/CollectDeoptEvents': [PASS, FAIL],
# TODO(mips-team): Improve code-size on large RegExp's.
'test-heap/TestSizeOfRegExpCode': [SKIP],
# BUG(1075): Unresolved crashes on MIPS also.
'test-serialize/StartupSerializerOnce': [SKIP],
'test-serialize/StartupSerializerTwice': [SKIP],
'test-serialize/StartupSerializerOnceRunScript': [SKIP],
'test-serialize/StartupSerializerTwiceRunScript': [SKIP],
}], # 'arch == mipsel or arch == mips'
##############################################################################
['arch == mips', {
# Too slow with TF.
'test-api/ExternalArrays': [PASS, NO_VARIANTS],
# TODO(mips-team): Currently fails on mips board.
'test-parsing/TooManyArguments': [SKIP],
'test-api/Threading5': [SKIP],
'test-api/Threading6': [SKIP],
}], # 'arch == mips'
##############################################################################
['arch == mips64el or arch == mips64', {
'test-cpu-profiler/CollectDeoptEvents': [PASS, FAIL],
# BUG(v8:3154).
'test-heap/ReleaseOverReservedPages': [PASS, FAIL],
# TODO(mips-team): Improve code-size on large RegExp's.
'test-heap/TestSizeOfRegExpCode': [SKIP],
# BUG(1075): Unresolved crashes on MIPS also.
'test-serialize/StartupSerializerOnce': [SKIP],
'test-serialize/StartupSerializerTwice': [SKIP],
'test-serialize/StartupSerializerOnceRunScript': [SKIP],
'test-serialize/StartupSerializerTwiceRunScript': [SKIP],
}], # 'arch == mips64el or arch == mips64'
##############################################################################
['arch == x87', {
'test-run-machops/RunFloat64InsertLowWord32': [SKIP],
'test-run-native-calls/MixedParams_0': [SKIP],
'test-run-native-calls/MixedParams_1': [SKIP],
'test-run-native-calls/MixedParams_2': [SKIP],
'test-run-native-calls/MixedParams_3': [SKIP],
'test-run-machops/RunFloat64MulAndFloat64Add1': [SKIP],
'test-run-machops/RunFloat64MulAndFloat64Add2': [SKIP],
'test-run-machops/RunFloat64MulAndFloat64Sub1': [SKIP],
'test-run-machops/RunFloat64MulAndFloat64Sub2': [SKIP],
'test-run-machops/RunFloat64Sin': [SKIP],
'test-run-machops/RunFloat64Cos': [SKIP],
'test-run-machops/RunFloat64Expm1': [SKIP],
'test-run-machops/RunFloat64Tan': [SKIP],
'test-cpu-profiler/Inlining': [SKIP],
'test-gap-resolver/FuzzResolver': [SKIP],
'test-run-wasm/RunWasmCompiled_MultiReturnSelect_f32': [SKIP],
'test-run-wasm/RunWasmCompiled_MultiReturnSelect_f64': [SKIP],
}], # 'arch == x87'
##############################################################################
['arch == android_arm or arch == android_ia32', {
# Tests crash as there is no /tmp directory in Android.
'test-log/LogAccessorCallbacks': [SKIP],
'test-log/LogCallbacks': [SKIP],
'test-log/ProfLazyMode': [SKIP],
}], # 'arch == android_arm or arch == android_ia32'
##############################################################################
['system == aix and arch == ppc64', {
# BUG 2857
'test-log/EquivalenceOfLoggingAndTraversal' : [SKIP],
}], # 'system == aix and arch == ppc64'
##############################################################################
['system == aix or (arch == ppc64 and byteorder == big)', {
# TODO(ppc): Fix for platforms with function desciptors.
'test-run-machops/RunComputedCodeObject' : [SKIP],
'test-run-wasm-module/Run_WasmModule_Return114' : [SKIP],
'test-run-wasm-module/Run_WasmModule_CallAdd' : [SKIP],
'test-run-wasm-module/Run_WasmModule_CallMain_recursive' : [SKIP],
}], # 'system == aix or (arch == ppc64 and byteorder == big)'
##############################################################################
['arch == ppc and simulator_run == True or arch == ppc64 and simulator_run == True', {
# Pass but take too long with the simulator.
'test-api/Threading*': [PASS, SLOW],
'test-api/ExternalArrays': [PASS, SLOW],
}], # 'arch == ppc64 and simulator_run == True'
##############################################################################
['variant == turbofan_opt', {
# TODO(mythria,4680): Lack of code-ageing and/or lack of compilation cache
# in interpreter.
'test-heap/CompilationCacheCachingBehavior': [FAIL],
# TODO(mstarzinger): Triggers Ignition+TurboFan on everything now and makes
# the stack traces within the profilers look different. Needs investigation.
'test-api/SetFunctionEntryHook': [SKIP],
'test-cpu-profiler/BoundFunctionCall': [FAIL],
'test-cpu-profiler/CollectSampleAPI': [FAIL],
'test-cpu-profiler/FunctionApplySample': [FAIL],
'test-cpu-profiler/FunctionCallSample': [FAIL],
'test-cpu-profiler/JsNativeJsRuntimeJsSample': [FAIL],
'test-cpu-profiler/JsNativeJsSample': [FAIL],
'test-cpu-profiler/JsNativeJsRuntimeJsSampleMultiple': [FAIL],
'test-cpu-profiler/JsNative1JsNative2JsSample': [FAIL],
'test-cpu-profiler/NativeMethodUninitializedIC': [FAIL],
'test-cpu-profiler/NativeAccessorUninitializedIC': [FAIL],
'test-profile-generator/LineNumber': [FAIL],
'test-sampler-api/StackFramesConsistent': [FAIL],
# BUG(v8:5457)
'test-api/SetJitCodeEventHandler': [PASS, ['no_snap', SKIP]],
}], # variant == turbofan_opt
##############################################################################
['variant == ignition', {
# TODO(mythria,4680): Lack of code-ageing and/or lack of compilation cache
# in interpreter.
'test-heap/CompilationCacheCachingBehavior': [FAIL],
# BUG(5193): Flaky.
'test-cpu-profiler/FunctionApplySample': [PASS, ['system == windows', SKIP]],
}], # variant == ignition
##############################################################################
['variant == ignition_staging', {
'test-cpu-profiler/DeoptUntrackedFunction': [SKIP],
'test-cpu-profiler/TickLinesOptimized': [SKIP],
'test-heap/CompilationCacheCachingBehavior': [FAIL],
# BUG(5193): Flaky.
'test-cpu-profiler/FunctionApplySample': [PASS, ['system == windows', SKIP]],
}], # variant == ignition_staging
##############################################################################
['variant == turbofan or variant == ignition_turbofan', {
# TODO(mythria,4680): Lack of code-ageing and/or lack of compilation cache
# in interpreter.
'test-heap/CompilationCacheCachingBehavior': [FAIL],
# BUG(4680): Missing type feedback makes optimistic optimizations fail.
'test-cpu-profiler/CollectDeoptEvents': [FAIL],
'test-cpu-profiler/DeoptUntrackedFunction': [SKIP],
# BUG(4751). Flaky with Ignition.
'test-cpu-profiler/JsNativeJsSample': [SKIP],
# TODO(vogelheim,5548): Turbofan does support cached accessors.
'test-api-accessors/CachedAccessorCrankshaft': [FAIL],
# BUG(5193): Flaky.
'test-cpu-profiler/FunctionApplySample': [PASS, ['system == windows', SKIP]],
}], # variant == turbofan or variant == ignition_turbofan
##############################################################################
['variant != ignition and variant != ignition_staging and variant != ignition_turbofan', {
# Ongoing implementation of modules.
# https://bugs.chromium.org/p/v8/issues/detail?id=1569
'test-modules/*': [SKIP],
}], # variant != ignition and variant != ignition_staging and variant != ignition_turbofan
##############################################################################
['variant == asm_wasm', {
'*': [SKIP],
}], # variant == asm_wasm
##############################################################################
['variant == wasm_traps', {
'test-accessors/*': [SKIP],
'test-api-interceptors/*': [SKIP],
'test-api/*': [SKIP],
'test-bignum-dtoa/*': [SKIP],
'test-cpu-profiler/*': [SKIP],
'test-debug/*': [SKIP],
'test-global-handles/*': [SKIP],
'test-heap-profiler/*': [SKIP],
'test-heap/*': [SKIP],
'test-inobject-slack-tracking/*': [SKIP],
'test-lockers/*': [SKIP],
'test-run-machops/*': [SKIP],
'test-serialize/*': [SKIP],
'test-strings/*': [SKIP],
'test-field-type-tracking/*': [SKIP],
'test-parsing/*': [SKIP],
'test-page-promotion/*': [SKIP],
'test-decls/*': [SKIP],
'test-log/*': [SKIP],
'test-gap-resolver/*': [SKIP],
'test-dtoa/*': [SKIP],
}], # variant == wasm_traps
]
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