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// Copyright 2012 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.
#include "src/v8.h"
#include "test/cctest/cctest.h"
#include "src/accessors.h"
#include "src/api-inl.h"
#include "src/objects-inl.h"
#include "src/objects/api-callbacks.h"
#include "src/property.h"
#include "test/cctest/heap/heap-tester.h"
#include "test/cctest/heap/heap-utils.h"
namespace v8 {
namespace internal {
namespace heap {
Handle<Object> HeapTester::TestAllocateAfterFailures() {
// Similar to what the factory's retrying logic does in the last-resort case,
// we wrap the allocator function in an AlwaysAllocateScope. Test that
// all allocations succeed immediately without any retry.
CcTest::CollectAllAvailableGarbage();
AlwaysAllocateScope scope(CcTest::i_isolate());
Heap* heap = CcTest::heap();
int size = FixedArray::SizeFor(100);
// New space.
HeapObject* obj = heap->AllocateRaw(size, NEW_SPACE).ToObjectChecked();
// In order to pass heap verification on Isolate teardown, mark the
// allocated area as a filler.
heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
// Old space.
heap::SimulateFullSpace(heap->old_space());
obj = heap->AllocateRaw(size, OLD_SPACE).ToObjectChecked();
heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
// Large object space.
static const size_t kLargeObjectSpaceFillerLength =
3 * (Page::kPageSize / 10);
static const size_t kLargeObjectSpaceFillerSize =
FixedArray::SizeFor(kLargeObjectSpaceFillerLength);
CHECK_GT(kLargeObjectSpaceFillerSize,
static_cast<size_t>(heap->old_space()->AreaSize()));
while (heap->OldGenerationSpaceAvailable() > kLargeObjectSpaceFillerSize) {
obj = heap->AllocateRaw(kLargeObjectSpaceFillerSize, OLD_SPACE)
.ToObjectChecked();
heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
}
obj = heap->AllocateRaw(kLargeObjectSpaceFillerSize, OLD_SPACE)
.ToObjectChecked();
heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
// Map space.
heap::SimulateFullSpace(heap->map_space());
obj = heap->AllocateRaw(Map::kSize, MAP_SPACE).ToObjectChecked();
heap->CreateFillerObjectAt(obj->address(), Map::kSize,
ClearRecordedSlots::kNo);
// Code space.
heap::SimulateFullSpace(heap->code_space());
size = CcTest::i_isolate()->builtins()->builtin(Builtins::kIllegal)->Size();
obj = heap->AllocateRaw(size, CODE_SPACE).ToObjectChecked();
heap->CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
return CcTest::i_isolate()->factory()->true_value();
}
HEAP_TEST(StressHandles) {
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = v8::Context::New(CcTest::isolate());
env->Enter();
Handle<Object> o = TestAllocateAfterFailures();
CHECK(o->IsTrue(CcTest::i_isolate()));
env->Exit();
}
void TestGetter(
v8::Local<v8::Name> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate());
HandleScope scope(isolate);
info.GetReturnValue().Set(
v8::Utils::ToLocal(HeapTester::TestAllocateAfterFailures()));
}
void TestSetter(v8::Local<v8::Name> name, v8::Local<v8::Value> value,
const v8::PropertyCallbackInfo<v8::Boolean>& info) {
UNREACHABLE();
}
Handle<AccessorInfo> TestAccessorInfo(
Isolate* isolate, PropertyAttributes attributes) {
Handle<String> name = isolate->factory()->NewStringFromStaticChars("get");
return Accessors::MakeAccessor(isolate, name, &TestGetter, &TestSetter);
}
TEST(StressJS) {
Isolate* isolate = CcTest::i_isolate();
Factory* factory = isolate->factory();
v8::HandleScope scope(CcTest::isolate());
v8::Local<v8::Context> env = v8::Context::New(CcTest::isolate());
env->Enter();
NewFunctionArgs args = NewFunctionArgs::ForBuiltin(
factory->function_string(), isolate->sloppy_function_map(),
Builtins::kEmptyFunction);
Handle<JSFunction> function = factory->NewFunction(args);
CHECK(!function->shared()->construct_as_builtin());
// Force the creation of an initial map.
factory->NewJSObject(function);
// Patch the map to have an accessor for "get".
Handle<Map> map(function->initial_map(), isolate);
Handle<DescriptorArray> instance_descriptors(map->instance_descriptors(),
isolate);
CHECK_EQ(0, instance_descriptors->number_of_descriptors());
PropertyAttributes attrs = NONE;
Handle<AccessorInfo> foreign = TestAccessorInfo(isolate, attrs);
Map::EnsureDescriptorSlack(isolate, map, 1);
Descriptor d = Descriptor::AccessorConstant(
Handle<Name>(Name::cast(foreign->name()), isolate), foreign, attrs);
map->AppendDescriptor(&d);
// Add the Foo constructor the global object.
CHECK(env->Global()
->Set(env, v8::String::NewFromUtf8(CcTest::isolate(), "Foo",
v8::NewStringType::kNormal)
.ToLocalChecked(),
v8::Utils::CallableToLocal(function))
.FromJust());
// Call the accessor through JavaScript.
v8::Local<v8::Value> result =
v8::Script::Compile(
env, v8::String::NewFromUtf8(CcTest::isolate(), "(new Foo).get",
v8::NewStringType::kNormal)
.ToLocalChecked())
.ToLocalChecked()
->Run(env)
.ToLocalChecked();
CHECK_EQ(true, result->BooleanValue(CcTest::isolate()));
env->Exit();
}
} // namespace heap
} // namespace internal
} // namespace v8
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