87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
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// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifdef __linux__
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#include <sys/mman.h>
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#undef MAP_TYPE
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#endif // __linux__
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#include "src/heap/heap-inl.h"
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#include "src/heap/spaces-inl.h"
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#include "src/isolate.h"
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#include "test/unittests/test-utils.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace v8 {
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namespace internal {
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class SequentialUnmapperTest : public TestWithIsolate {
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public:
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SequentialUnmapperTest() = default;
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~SequentialUnmapperTest() override = default;
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static void SetUpTestCase() {
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old_flag_ = i::FLAG_concurrent_sweeping;
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i::FLAG_concurrent_sweeping = false;
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TestWithIsolate::SetUpTestCase();
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}
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static void TearDownTestCase() {
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TestWithIsolate::TearDownTestCase();
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i::FLAG_concurrent_sweeping = old_flag_;
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}
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Heap* heap() { return isolate()->heap(); }
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MemoryAllocator* allocator() { return heap()->memory_allocator(); }
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MemoryAllocator::Unmapper* unmapper() { return allocator()->unmapper(); }
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private:
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static bool old_flag_;
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DISALLOW_COPY_AND_ASSIGN(SequentialUnmapperTest);
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};
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bool SequentialUnmapperTest::old_flag_;
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#ifdef __linux__
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// See v8:5945.
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TEST_F(SequentialUnmapperTest, UnmapOnTeardownAfterAlreadyFreeingPooled) {
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Page* page =
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allocator()->AllocatePage(MemoryAllocator::PageAreaSize(OLD_SPACE),
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static_cast<PagedSpace*>(heap()->old_space()),
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Executability::NOT_EXECUTABLE);
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EXPECT_NE(nullptr, page);
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const int page_size = getpagesize();
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void* start_address = static_cast<void*>(page->address());
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EXPECT_EQ(0, msync(start_address, page_size, MS_SYNC));
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allocator()->Free<MemoryAllocator::kPooledAndQueue>(page);
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EXPECT_EQ(0, msync(start_address, page_size, MS_SYNC));
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unmapper()->FreeQueuedChunks();
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EXPECT_EQ(0, msync(start_address, page_size, MS_SYNC));
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unmapper()->TearDown();
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EXPECT_EQ(-1, msync(start_address, page_size, MS_SYNC));
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}
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// See v8:5945.
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TEST_F(SequentialUnmapperTest, UnmapOnTeardown) {
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Page* page =
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allocator()->AllocatePage(MemoryAllocator::PageAreaSize(OLD_SPACE),
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static_cast<PagedSpace*>(heap()->old_space()),
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Executability::NOT_EXECUTABLE);
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EXPECT_NE(nullptr, page);
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const int page_size = getpagesize();
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void* start_address = static_cast<void*>(page->address());
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EXPECT_EQ(0, msync(start_address, page_size, MS_SYNC));
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allocator()->Free<MemoryAllocator::kPooledAndQueue>(page);
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EXPECT_EQ(0, msync(start_address, page_size, MS_SYNC));
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unmapper()->TearDown();
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EXPECT_EQ(-1, msync(start_address, page_size, MS_SYNC));
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}
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#endif // __linux__
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} // namespace internal
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} // namespace v8
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