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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "class_linker-inl.h"
#include "common_runtime_test.h"
#include "gc/accounting/card_table-inl.h"
#include "gc/accounting/space_bitmap-inl.h"
#include "handle_scope-inl.h"
#include "mirror/class-inl.h"
#include "mirror/object-inl.h"
#include "mirror/object_array-alloc-inl.h"
#include "mirror/object_array-inl.h"
#include "scoped_thread_state_change-inl.h"
namespace art {
namespace gc {
class HeapTest : public CommonRuntimeTest {
public:
void SetUp() override {
MemMap::Init();
std::string error_msg;
// Reserve the preferred address to force the heap to use another one for testing.
reserved_ = MemMap::MapAnonymous("ReserveMap",
gc::Heap::kPreferredAllocSpaceBegin,
16 * KB,
PROT_READ,
/*low_4gb=*/ true,
/*reuse=*/ false,
/*reservation=*/ nullptr,
&error_msg);
// There is no guarantee that reserved_ will be valid (due to ASLR). See b/175018342.
CommonRuntimeTest::SetUp();
}
private:
MemMap reserved_;
};
TEST_F(HeapTest, ClearGrowthLimit) {
Heap* heap = Runtime::Current()->GetHeap();
int64_t max_memory_before = heap->GetMaxMemory();
int64_t total_memory_before = heap->GetTotalMemory();
heap->ClearGrowthLimit();
int64_t max_memory_after = heap->GetMaxMemory();
int64_t total_memory_after = heap->GetTotalMemory();
EXPECT_GE(max_memory_after, max_memory_before);
EXPECT_GE(total_memory_after, total_memory_before);
}
TEST_F(HeapTest, GarbageCollectClassLinkerInit) {
{
ScopedObjectAccess soa(Thread::Current());
// garbage is created during ClassLinker::Init
StackHandleScope<1> hs(soa.Self());
Handle<mirror::Class> c(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;")));
for (size_t i = 0; i < 1024; ++i) {
StackHandleScope<1> hs2(soa.Self());
Handle<mirror::ObjectArray<mirror::Object>> array(hs2.NewHandle(
mirror::ObjectArray<mirror::Object>::Alloc(soa.Self(), c.Get(), 2048)));
for (size_t j = 0; j < 2048; ++j) {
ObjPtr<mirror::String> string =
mirror::String::AllocFromModifiedUtf8(soa.Self(), "hello, world!");
// handle scope operator -> deferences the handle scope before running the method.
array->Set<false>(j, string);
}
}
}
Runtime::Current()->GetHeap()->CollectGarbage(/* clear_soft_references= */ false);
}
TEST_F(HeapTest, HeapBitmapCapacityTest) {
uint8_t* heap_begin = reinterpret_cast<uint8_t*>(0x1000);
const size_t heap_capacity = kObjectAlignment * (sizeof(intptr_t) * 8 + 1);
accounting::ContinuousSpaceBitmap bitmap(
accounting::ContinuousSpaceBitmap::Create("test bitmap", heap_begin, heap_capacity));
mirror::Object* fake_end_of_heap_object =
reinterpret_cast<mirror::Object*>(&heap_begin[heap_capacity - kObjectAlignment]);
bitmap.Set(fake_end_of_heap_object);
}
TEST_F(HeapTest, DumpGCPerformanceOnShutdown) {
Runtime::Current()->GetHeap()->CollectGarbage(/* clear_soft_references= */ false);
Runtime::Current()->SetDumpGCPerformanceOnShutdown(true);
}
class ZygoteHeapTest : public CommonRuntimeTest {
void SetUpRuntimeOptions(RuntimeOptions* options) override {
CommonRuntimeTest::SetUpRuntimeOptions(options);
options->push_back(std::make_pair("-Xzygote", nullptr));
}
};
TEST_F(ZygoteHeapTest, PreZygoteFork) {
// Exercise Heap::PreZygoteFork() to check it does not crash.
Runtime::Current()->GetHeap()->PreZygoteFork();
}
} // namespace gc
} // namespace art