93c9717473
This reverts r20682. TBR=dcarney@chromium.org Review URL: https://codereview.chromium.org/234893003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
534 lines
18 KiB
C++
534 lines
18 KiB
C++
// Copyright 2012 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <stdlib.h>
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#ifdef __linux__
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#endif
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#include <utility>
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#include "v8.h"
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#include "global-handles.h"
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#include "snapshot.h"
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#include "cctest.h"
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using namespace v8::internal;
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TEST(MarkingDeque) {
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CcTest::InitializeVM();
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int mem_size = 20 * kPointerSize;
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byte* mem = NewArray<byte>(20*kPointerSize);
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Address low = reinterpret_cast<Address>(mem);
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Address high = low + mem_size;
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MarkingDeque s;
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s.Initialize(low, high);
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Address original_address = reinterpret_cast<Address>(&s);
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Address current_address = original_address;
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while (!s.IsFull()) {
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s.PushBlack(HeapObject::FromAddress(current_address));
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current_address += kPointerSize;
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}
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while (!s.IsEmpty()) {
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Address value = s.Pop()->address();
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current_address -= kPointerSize;
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CHECK_EQ(current_address, value);
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}
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CHECK_EQ(original_address, current_address);
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DeleteArray(mem);
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}
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TEST(Promotion) {
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CcTest::InitializeVM();
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Heap* heap = CcTest::heap();
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heap->ConfigureHeap(2*256*KB, 1*MB, 1*MB, 0);
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v8::HandleScope sc(CcTest::isolate());
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// Allocate a fixed array in the new space.
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int array_length =
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(Page::kMaxRegularHeapObjectSize - FixedArray::kHeaderSize) /
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(4 * kPointerSize);
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Object* obj = heap->AllocateFixedArray(array_length)->ToObjectChecked();
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Handle<FixedArray> array(FixedArray::cast(obj));
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// Array should be in the new space.
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CHECK(heap->InSpace(*array, NEW_SPACE));
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// Call mark compact GC, so array becomes an old object.
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heap->CollectGarbage(OLD_POINTER_SPACE);
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// Array now sits in the old space
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CHECK(heap->InSpace(*array, OLD_POINTER_SPACE));
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}
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TEST(NoPromotion) {
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CcTest::InitializeVM();
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Heap* heap = CcTest::heap();
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heap->ConfigureHeap(2*256*KB, 1*MB, 1*MB, 0);
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v8::HandleScope sc(CcTest::isolate());
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// Allocate a big fixed array in the new space.
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int array_length =
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(Page::kMaxRegularHeapObjectSize - FixedArray::kHeaderSize) /
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(2 * kPointerSize);
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Object* obj = heap->AllocateFixedArray(array_length)->ToObjectChecked();
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Handle<FixedArray> array(FixedArray::cast(obj));
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// Array should be in the new space.
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CHECK(heap->InSpace(*array, NEW_SPACE));
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// Simulate a full old space to make promotion fail.
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SimulateFullSpace(heap->old_pointer_space());
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// Call mark compact GC, and it should pass.
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heap->CollectGarbage(OLD_POINTER_SPACE);
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}
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TEST(MarkCompactCollector) {
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FLAG_incremental_marking = false;
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CcTest::InitializeVM();
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Isolate* isolate = CcTest::i_isolate();
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Heap* heap = isolate->heap();
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Factory* factory = isolate->factory();
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v8::HandleScope sc(CcTest::isolate());
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Handle<GlobalObject> global(isolate->context()->global_object());
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// call mark-compact when heap is empty
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heap->CollectGarbage(OLD_POINTER_SPACE, "trigger 1");
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// keep allocating garbage in new space until it fails
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const int ARRAY_SIZE = 100;
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Object* array;
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MaybeObject* maybe_array;
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do {
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maybe_array = heap->AllocateFixedArray(ARRAY_SIZE);
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} while (maybe_array->ToObject(&array));
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heap->CollectGarbage(NEW_SPACE, "trigger 2");
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heap->AllocateFixedArray(ARRAY_SIZE)->ToObjectChecked();
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// keep allocating maps until it fails
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Object* map;
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MaybeObject* maybe_map;
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do {
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maybe_map = heap->AllocateMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
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} while (maybe_map->ToObject(&map));
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heap->CollectGarbage(MAP_SPACE, "trigger 3");
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heap->AllocateMap(JS_OBJECT_TYPE, JSObject::kHeaderSize)->ToObjectChecked();
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{ HandleScope scope(isolate);
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// allocate a garbage
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Handle<String> func_name = factory->InternalizeUtf8String("theFunction");
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Handle<JSFunction> function = factory->NewFunction(
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func_name, factory->undefined_value());
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Handle<Map> initial_map = factory->NewMap(
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JS_OBJECT_TYPE, JSObject::kHeaderSize);
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function->set_initial_map(*initial_map);
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JSReceiver::SetProperty(global, func_name, function, NONE, SLOPPY).Check();
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factory->NewJSObject(function);
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}
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heap->CollectGarbage(OLD_POINTER_SPACE, "trigger 4");
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{ HandleScope scope(isolate);
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Handle<String> func_name = factory->InternalizeUtf8String("theFunction");
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CHECK(JSReceiver::HasLocalProperty(global, func_name));
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Handle<Object> func_value = Object::GetProperty(global, func_name);
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CHECK(func_value->IsJSFunction());
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Handle<JSFunction> function = Handle<JSFunction>::cast(func_value);
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Handle<JSObject> obj = factory->NewJSObject(function);
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Handle<String> obj_name = factory->InternalizeUtf8String("theObject");
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JSReceiver::SetProperty(global, obj_name, obj, NONE, SLOPPY).Check();
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Handle<String> prop_name = factory->InternalizeUtf8String("theSlot");
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Handle<Smi> twenty_three(Smi::FromInt(23), isolate);
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JSReceiver::SetProperty(obj, prop_name, twenty_three, NONE, SLOPPY).Check();
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}
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heap->CollectGarbage(OLD_POINTER_SPACE, "trigger 5");
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{ HandleScope scope(isolate);
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Handle<String> obj_name = factory->InternalizeUtf8String("theObject");
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CHECK(JSReceiver::HasLocalProperty(global, obj_name));
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Handle<Object> object = Object::GetProperty(global, obj_name);
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CHECK(object->IsJSObject());
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Handle<String> prop_name = factory->InternalizeUtf8String("theSlot");
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CHECK_EQ(*Object::GetProperty(object, prop_name), Smi::FromInt(23));
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}
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}
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// TODO(1600): compaction of map space is temporary removed from GC.
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#if 0
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static Handle<Map> CreateMap(Isolate* isolate) {
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return isolate->factory()->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
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}
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TEST(MapCompact) {
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FLAG_max_map_space_pages = 16;
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CcTest::InitializeVM();
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Isolate* isolate = CcTest::i_isolate();
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Factory* factory = isolate->factory();
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{
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v8::HandleScope sc;
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// keep allocating maps while pointers are still encodable and thus
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// mark compact is permitted.
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Handle<JSObject> root = factory->NewJSObjectFromMap(CreateMap());
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do {
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Handle<Map> map = CreateMap();
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map->set_prototype(*root);
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root = factory->NewJSObjectFromMap(map);
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} while (CcTest::heap()->map_space()->MapPointersEncodable());
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}
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// Now, as we don't have any handles to just allocated maps, we should
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// be able to trigger map compaction.
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// To give an additional chance to fail, try to force compaction which
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// should be impossible right now.
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CcTest::heap()->CollectAllGarbage(Heap::kForceCompactionMask);
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// And now map pointers should be encodable again.
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CHECK(CcTest::heap()->map_space()->MapPointersEncodable());
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}
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#endif
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static int NumberOfWeakCalls = 0;
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static void WeakPointerCallback(
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const v8::WeakCallbackData<v8::Value, void>& data) {
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std::pair<v8::Persistent<v8::Value>*, int>* p =
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reinterpret_cast<std::pair<v8::Persistent<v8::Value>*, int>*>(
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data.GetParameter());
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ASSERT_EQ(1234, p->second);
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NumberOfWeakCalls++;
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p->first->Reset();
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}
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TEST(ObjectGroups) {
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FLAG_incremental_marking = false;
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CcTest::InitializeVM();
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GlobalHandles* global_handles = CcTest::i_isolate()->global_handles();
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Heap* heap = CcTest::heap();
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NumberOfWeakCalls = 0;
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v8::HandleScope handle_scope(CcTest::isolate());
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Handle<Object> g1s1 =
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global_handles->Create(heap->AllocateFixedArray(1)->ToObjectChecked());
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Handle<Object> g1s2 =
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global_handles->Create(heap->AllocateFixedArray(1)->ToObjectChecked());
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Handle<Object> g1c1 =
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global_handles->Create(heap->AllocateFixedArray(1)->ToObjectChecked());
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std::pair<Handle<Object>*, int> g1s1_and_id(&g1s1, 1234);
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GlobalHandles::MakeWeak(g1s1.location(),
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reinterpret_cast<void*>(&g1s1_and_id),
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&WeakPointerCallback);
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std::pair<Handle<Object>*, int> g1s2_and_id(&g1s2, 1234);
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GlobalHandles::MakeWeak(g1s2.location(),
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reinterpret_cast<void*>(&g1s2_and_id),
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&WeakPointerCallback);
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std::pair<Handle<Object>*, int> g1c1_and_id(&g1c1, 1234);
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GlobalHandles::MakeWeak(g1c1.location(),
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reinterpret_cast<void*>(&g1c1_and_id),
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&WeakPointerCallback);
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Handle<Object> g2s1 =
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global_handles->Create(heap->AllocateFixedArray(1)->ToObjectChecked());
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Handle<Object> g2s2 =
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global_handles->Create(heap->AllocateFixedArray(1)->ToObjectChecked());
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Handle<Object> g2c1 =
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global_handles->Create(heap->AllocateFixedArray(1)->ToObjectChecked());
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std::pair<Handle<Object>*, int> g2s1_and_id(&g2s1, 1234);
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GlobalHandles::MakeWeak(g2s1.location(),
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reinterpret_cast<void*>(&g2s1_and_id),
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&WeakPointerCallback);
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std::pair<Handle<Object>*, int> g2s2_and_id(&g2s2, 1234);
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GlobalHandles::MakeWeak(g2s2.location(),
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reinterpret_cast<void*>(&g2s2_and_id),
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&WeakPointerCallback);
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std::pair<Handle<Object>*, int> g2c1_and_id(&g2c1, 1234);
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GlobalHandles::MakeWeak(g2c1.location(),
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reinterpret_cast<void*>(&g2c1_and_id),
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&WeakPointerCallback);
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Handle<Object> root = global_handles->Create(*g1s1); // make a root.
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// Connect group 1 and 2, make a cycle.
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Handle<FixedArray>::cast(g1s2)->set(0, *g2s2);
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Handle<FixedArray>::cast(g2s1)->set(0, *g1s1);
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{
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Object** g1_objects[] = { g1s1.location(), g1s2.location() };
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Object** g1_children[] = { g1c1.location() };
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Object** g2_objects[] = { g2s1.location(), g2s2.location() };
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Object** g2_children[] = { g2c1.location() };
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global_handles->AddObjectGroup(g1_objects, 2, NULL);
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global_handles->AddImplicitReferences(
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Handle<HeapObject>::cast(g1s1).location(), g1_children, 1);
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global_handles->AddObjectGroup(g2_objects, 2, NULL);
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global_handles->AddImplicitReferences(
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Handle<HeapObject>::cast(g2s1).location(), g2_children, 1);
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}
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// Do a full GC
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heap->CollectGarbage(OLD_POINTER_SPACE);
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// All object should be alive.
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CHECK_EQ(0, NumberOfWeakCalls);
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// Weaken the root.
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std::pair<Handle<Object>*, int> root_and_id(&root, 1234);
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GlobalHandles::MakeWeak(root.location(),
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reinterpret_cast<void*>(&root_and_id),
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&WeakPointerCallback);
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// But make children strong roots---all the objects (except for children)
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// should be collectable now.
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global_handles->ClearWeakness(g1c1.location());
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global_handles->ClearWeakness(g2c1.location());
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// Groups are deleted, rebuild groups.
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{
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Object** g1_objects[] = { g1s1.location(), g1s2.location() };
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Object** g1_children[] = { g1c1.location() };
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Object** g2_objects[] = { g2s1.location(), g2s2.location() };
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Object** g2_children[] = { g2c1.location() };
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global_handles->AddObjectGroup(g1_objects, 2, NULL);
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global_handles->AddImplicitReferences(
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Handle<HeapObject>::cast(g1s1).location(), g1_children, 1);
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global_handles->AddObjectGroup(g2_objects, 2, NULL);
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global_handles->AddImplicitReferences(
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Handle<HeapObject>::cast(g2s1).location(), g2_children, 1);
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}
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heap->CollectGarbage(OLD_POINTER_SPACE);
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// All objects should be gone. 5 global handles in total.
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CHECK_EQ(5, NumberOfWeakCalls);
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// And now make children weak again and collect them.
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GlobalHandles::MakeWeak(g1c1.location(),
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reinterpret_cast<void*>(&g1c1_and_id),
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&WeakPointerCallback);
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GlobalHandles::MakeWeak(g2c1.location(),
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reinterpret_cast<void*>(&g2c1_and_id),
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&WeakPointerCallback);
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heap->CollectGarbage(OLD_POINTER_SPACE);
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CHECK_EQ(7, NumberOfWeakCalls);
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}
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class TestRetainedObjectInfo : public v8::RetainedObjectInfo {
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public:
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TestRetainedObjectInfo() : has_been_disposed_(false) {}
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bool has_been_disposed() { return has_been_disposed_; }
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virtual void Dispose() {
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ASSERT(!has_been_disposed_);
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has_been_disposed_ = true;
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}
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virtual bool IsEquivalent(v8::RetainedObjectInfo* other) {
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return other == this;
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}
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virtual intptr_t GetHash() { return 0; }
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virtual const char* GetLabel() { return "whatever"; }
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private:
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bool has_been_disposed_;
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};
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TEST(EmptyObjectGroups) {
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CcTest::InitializeVM();
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GlobalHandles* global_handles = CcTest::i_isolate()->global_handles();
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v8::HandleScope handle_scope(CcTest::isolate());
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Handle<Object> object = global_handles->Create(
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CcTest::heap()->AllocateFixedArray(1)->ToObjectChecked());
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TestRetainedObjectInfo info;
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global_handles->AddObjectGroup(NULL, 0, &info);
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ASSERT(info.has_been_disposed());
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global_handles->AddImplicitReferences(
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Handle<HeapObject>::cast(object).location(), NULL, 0);
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}
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#if defined(__has_feature)
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#if __has_feature(address_sanitizer)
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#define V8_WITH_ASAN 1
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#endif
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#endif
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// Here is a memory use test that uses /proc, and is therefore Linux-only. We
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// do not care how much memory the simulator uses, since it is only there for
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// debugging purposes. Testing with ASAN doesn't make sense, either.
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#if defined(__linux__) && !defined(USE_SIMULATOR) && !defined(V8_WITH_ASAN)
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static uintptr_t ReadLong(char* buffer, intptr_t* position, int base) {
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char* end_address = buffer + *position;
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uintptr_t result = strtoul(buffer + *position, &end_address, base);
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CHECK(result != ULONG_MAX || errno != ERANGE);
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CHECK(end_address > buffer + *position);
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*position = end_address - buffer;
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return result;
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}
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// The memory use computed this way is not entirely accurate and depends on
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// the way malloc allocates memory. That's why the memory use may seem to
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// increase even though the sum of the allocated object sizes decreases. It
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// also means that the memory use depends on the kernel and stdlib.
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static intptr_t MemoryInUse() {
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intptr_t memory_use = 0;
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int fd = open("/proc/self/maps", O_RDONLY);
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if (fd < 0) return -1;
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const int kBufSize = 10000;
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char buffer[kBufSize];
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int length = read(fd, buffer, kBufSize);
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intptr_t line_start = 0;
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CHECK_LT(length, kBufSize); // Make the buffer bigger.
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CHECK_GT(length, 0); // We have to find some data in the file.
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while (line_start < length) {
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if (buffer[line_start] == '\n') {
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line_start++;
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continue;
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}
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intptr_t position = line_start;
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uintptr_t start = ReadLong(buffer, &position, 16);
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CHECK_EQ(buffer[position++], '-');
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uintptr_t end = ReadLong(buffer, &position, 16);
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CHECK_EQ(buffer[position++], ' ');
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CHECK(buffer[position] == '-' || buffer[position] == 'r');
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bool read_permission = (buffer[position++] == 'r');
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CHECK(buffer[position] == '-' || buffer[position] == 'w');
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bool write_permission = (buffer[position++] == 'w');
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CHECK(buffer[position] == '-' || buffer[position] == 'x');
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bool execute_permission = (buffer[position++] == 'x');
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CHECK(buffer[position] == '-' || buffer[position] == 'p');
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bool private_mapping = (buffer[position++] == 'p');
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CHECK_EQ(buffer[position++], ' ');
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uintptr_t offset = ReadLong(buffer, &position, 16);
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USE(offset);
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CHECK_EQ(buffer[position++], ' ');
|
|
uintptr_t major = ReadLong(buffer, &position, 16);
|
|
USE(major);
|
|
CHECK_EQ(buffer[position++], ':');
|
|
uintptr_t minor = ReadLong(buffer, &position, 16);
|
|
USE(minor);
|
|
CHECK_EQ(buffer[position++], ' ');
|
|
uintptr_t inode = ReadLong(buffer, &position, 10);
|
|
while (position < length && buffer[position] != '\n') position++;
|
|
if ((read_permission || write_permission || execute_permission) &&
|
|
private_mapping && inode == 0) {
|
|
memory_use += (end - start);
|
|
}
|
|
|
|
line_start = position;
|
|
}
|
|
close(fd);
|
|
return memory_use;
|
|
}
|
|
|
|
|
|
TEST(BootUpMemoryUse) {
|
|
intptr_t initial_memory = MemoryInUse();
|
|
// Avoid flakiness.
|
|
FLAG_crankshaft = false;
|
|
FLAG_concurrent_osr = false;
|
|
FLAG_concurrent_recompilation = false;
|
|
|
|
// Only Linux has the proc filesystem and only if it is mapped. If it's not
|
|
// there we just skip the test.
|
|
if (initial_memory >= 0) {
|
|
CcTest::InitializeVM();
|
|
intptr_t delta = MemoryInUse() - initial_memory;
|
|
printf("delta: %" V8_PTR_PREFIX "d kB\n", delta / 1024);
|
|
if (sizeof(initial_memory) == 8) { // 64-bit.
|
|
if (v8::internal::Snapshot::IsEnabled()) {
|
|
CHECK_LE(delta, 4100 * 1024);
|
|
} else {
|
|
CHECK_LE(delta, 4600 * 1024);
|
|
}
|
|
} else { // 32-bit.
|
|
if (v8::internal::Snapshot::IsEnabled()) {
|
|
CHECK_LE(delta, 3100 * 1024);
|
|
} else {
|
|
CHECK_LE(delta, 3450 * 1024);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
intptr_t ShortLivingIsolate() {
|
|
v8::Isolate* isolate = v8::Isolate::New();
|
|
{ v8::Isolate::Scope isolate_scope(isolate);
|
|
v8::Locker lock(isolate);
|
|
v8::HandleScope handle_scope(isolate);
|
|
v8::Local<v8::Context> context = v8::Context::New(isolate);
|
|
CHECK(!context.IsEmpty());
|
|
}
|
|
isolate->Dispose();
|
|
return MemoryInUse();
|
|
}
|
|
|
|
|
|
TEST(RegressJoinThreadsOnIsolateDeinit) {
|
|
intptr_t size_limit = ShortLivingIsolate() * 2;
|
|
for (int i = 0; i < 10; i++) {
|
|
CHECK_GT(size_limit, ShortLivingIsolate());
|
|
}
|
|
}
|
|
|
|
#endif // __linux__ and !USE_SIMULATOR
|