LCOV - code coverage report
Current view: top level - test/cctest/heap - test-alloc.cc (source / functions) Hit Total Coverage
Test: app.info Lines: 58 60 96.7 %
Date: 2019-04-17 Functions: 7 8 87.5 %

          Line data    Source code
       1             : // Copyright 2012 the V8 project authors. All rights reserved.
       2             : // Redistribution and use in source and binary forms, with or without
       3             : // modification, are permitted provided that the following conditions are
       4             : // met:
       5             : //
       6             : //     * Redistributions of source code must retain the above copyright
       7             : //       notice, this list of conditions and the following disclaimer.
       8             : //     * Redistributions in binary form must reproduce the above
       9             : //       copyright notice, this list of conditions and the following
      10             : //       disclaimer in the documentation and/or other materials provided
      11             : //       with the distribution.
      12             : //     * Neither the name of Google Inc. nor the names of its
      13             : //       contributors may be used to endorse or promote products derived
      14             : //       from this software without specific prior written permission.
      15             : //
      16             : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      17             : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      18             : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      19             : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      20             : // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      21             : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      22             : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      23             : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      24             : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      25             : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      26             : // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      27             : 
      28             : #include "src/v8.h"
      29             : #include "test/cctest/cctest.h"
      30             : 
      31             : #include "src/accessors.h"
      32             : #include "src/api-inl.h"
      33             : #include "src/heap/heap-inl.h"
      34             : #include "src/objects-inl.h"
      35             : #include "src/objects/api-callbacks.h"
      36             : #include "src/property.h"
      37             : #include "test/cctest/heap/heap-tester.h"
      38             : #include "test/cctest/heap/heap-utils.h"
      39             : 
      40             : namespace v8 {
      41             : namespace internal {
      42             : namespace heap {
      43             : 
      44          10 : Handle<Object> HeapTester::TestAllocateAfterFailures() {
      45             :   // Similar to what the factory's retrying logic does in the last-resort case,
      46             :   // we wrap the allocator function in an AlwaysAllocateScope.  Test that
      47             :   // all allocations succeed immediately without any retry.
      48          10 :   CcTest::CollectAllAvailableGarbage();
      49             :   AlwaysAllocateScope scope(CcTest::i_isolate());
      50          10 :   Heap* heap = CcTest::heap();
      51             :   int size = FixedArray::SizeFor(100);
      52             :   // Young generation.
      53             :   HeapObject obj =
      54          20 :       heap->AllocateRaw(size, AllocationType::kYoung).ToObjectChecked();
      55             :   // In order to pass heap verification on Isolate teardown, mark the
      56             :   // allocated area as a filler.
      57          10 :   heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
      58             : 
      59             :   // Old generation.
      60          10 :   heap::SimulateFullSpace(heap->old_space());
      61          20 :   obj = heap->AllocateRaw(size, AllocationType::kOld).ToObjectChecked();
      62          10 :   heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
      63             : 
      64             :   // Large object space.
      65             :   static const size_t kLargeObjectSpaceFillerLength =
      66             :       3 * (Page::kPageSize / 10);
      67             :   static const size_t kLargeObjectSpaceFillerSize =
      68             :       FixedArray::SizeFor(kLargeObjectSpaceFillerLength);
      69          10 :   CHECK_GT(kLargeObjectSpaceFillerSize,
      70             :            static_cast<size_t>(heap->old_space()->AreaSize()));
      71         140 :   while (heap->OldGenerationSpaceAvailable() > kLargeObjectSpaceFillerSize) {
      72         280 :     obj = heap->AllocateRaw(kLargeObjectSpaceFillerSize, AllocationType::kOld)
      73             :               .ToObjectChecked();
      74         140 :     heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
      75             :   }
      76          20 :   obj = heap->AllocateRaw(kLargeObjectSpaceFillerSize, AllocationType::kOld)
      77             :             .ToObjectChecked();
      78          10 :   heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
      79             : 
      80             :   // Map space.
      81          10 :   heap::SimulateFullSpace(heap->map_space());
      82          20 :   obj = heap->AllocateRaw(Map::kSize, AllocationType::kMap).ToObjectChecked();
      83             :   heap->CreateFillerObjectAt(obj->address(), Map::kSize,
      84          10 :                              ClearRecordedSlots::kNo);
      85             : 
      86             :   // Code space.
      87          10 :   heap::SimulateFullSpace(heap->code_space());
      88          10 :   size = CcTest::i_isolate()->builtins()->builtin(Builtins::kIllegal)->Size();
      89          20 :   obj = heap->AllocateRaw(size, AllocationType::kCode).ToObjectChecked();
      90          10 :   heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
      91          20 :   return CcTest::i_isolate()->factory()->true_value();
      92             : }
      93             : 
      94             : 
      95       26644 : HEAP_TEST(StressHandles) {
      96          10 :   v8::HandleScope scope(CcTest::isolate());
      97           5 :   v8::Local<v8::Context> env = v8::Context::New(CcTest::isolate());
      98           5 :   env->Enter();
      99           5 :   Handle<Object> o = TestAllocateAfterFailures();
     100           5 :   CHECK(o->IsTrue(CcTest::i_isolate()));
     101           5 :   env->Exit();
     102           5 : }
     103             : 
     104             : 
     105           5 : void TestGetter(
     106             :     v8::Local<v8::Name> name,
     107             :     const v8::PropertyCallbackInfo<v8::Value>& info) {
     108             :   i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate());
     109             :   HandleScope scope(isolate);
     110           5 :   info.GetReturnValue().Set(
     111             :       v8::Utils::ToLocal(HeapTester::TestAllocateAfterFailures()));
     112           5 : }
     113             : 
     114           0 : void TestSetter(v8::Local<v8::Name> name, v8::Local<v8::Value> value,
     115             :                 const v8::PropertyCallbackInfo<v8::Boolean>& info) {
     116           0 :   UNREACHABLE();
     117             : }
     118             : 
     119             : 
     120           5 : Handle<AccessorInfo> TestAccessorInfo(
     121             :       Isolate* isolate, PropertyAttributes attributes) {
     122           5 :   Handle<String> name = isolate->factory()->NewStringFromStaticChars("get");
     123           5 :   return Accessors::MakeAccessor(isolate, name, &TestGetter, &TestSetter);
     124             : }
     125             : 
     126             : 
     127       26644 : TEST(StressJS) {
     128             :   Isolate* isolate = CcTest::i_isolate();
     129             :   Factory* factory = isolate->factory();
     130          10 :   v8::HandleScope scope(CcTest::isolate());
     131           5 :   v8::Local<v8::Context> env = v8::Context::New(CcTest::isolate());
     132           5 :   env->Enter();
     133             : 
     134             :   NewFunctionArgs args = NewFunctionArgs::ForBuiltin(
     135             :       factory->function_string(), isolate->sloppy_function_map(),
     136          10 :       Builtins::kEmptyFunction);
     137           5 :   Handle<JSFunction> function = factory->NewFunction(args);
     138           5 :   CHECK(!function->shared()->construct_as_builtin());
     139             : 
     140             :   // Force the creation of an initial map.
     141           5 :   factory->NewJSObject(function);
     142             : 
     143             :   // Patch the map to have an accessor for "get".
     144             :   Handle<Map> map(function->initial_map(), isolate);
     145             :   Handle<DescriptorArray> instance_descriptors(map->instance_descriptors(),
     146             :                                                isolate);
     147           5 :   CHECK_EQ(0, instance_descriptors->number_of_descriptors());
     148             : 
     149             :   PropertyAttributes attrs = NONE;
     150           5 :   Handle<AccessorInfo> foreign = TestAccessorInfo(isolate, attrs);
     151           5 :   Map::EnsureDescriptorSlack(isolate, map, 1);
     152             : 
     153             :   Descriptor d = Descriptor::AccessorConstant(
     154           5 :       Handle<Name>(Name::cast(foreign->name()), isolate), foreign, attrs);
     155           5 :   map->AppendDescriptor(isolate, &d);
     156             : 
     157             :   // Add the Foo constructor the global object.
     158          20 :   CHECK(env->Global()
     159             :             ->Set(env, v8::String::NewFromUtf8(CcTest::isolate(), "Foo",
     160             :                                                v8::NewStringType::kNormal)
     161             :                            .ToLocalChecked(),
     162             :                   v8::Utils::CallableToLocal(function))
     163             :             .FromJust());
     164             :   // Call the accessor through JavaScript.
     165             :   v8::Local<v8::Value> result =
     166           5 :       v8::Script::Compile(
     167           5 :           env, v8::String::NewFromUtf8(CcTest::isolate(), "(new Foo).get",
     168           5 :                                        v8::NewStringType::kNormal)
     169             :                    .ToLocalChecked())
     170             :           .ToLocalChecked()
     171           5 :           ->Run(env)
     172             :           .ToLocalChecked();
     173           5 :   CHECK_EQ(true, result->BooleanValue(CcTest::isolate()));
     174           5 :   env->Exit();
     175           5 : }
     176             : 
     177             : }  // namespace heap
     178             : }  // namespace internal
     179       79917 : }  // namespace v8

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