2017-09-16 05:22:38 +00:00
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// Copyright 2017 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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#include "test/unittests/test-utils.h"
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#include "testing/gmock/include/gmock/gmock.h"
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2017-12-05 01:47:59 +00:00
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#include "src/wasm/wasm-code-manager.h"
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2017-09-16 05:22:38 +00:00
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namespace v8 {
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namespace internal {
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namespace wasm {
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2017-09-28 17:55:52 +00:00
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namespace wasm_heap_unittest {
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2017-09-28 17:55:52 +00:00
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class DisjointAllocationPoolTest : public ::testing::Test {
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public:
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Address A(size_t n) { return reinterpret_cast<Address>(n); }
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void CheckLooksLike(const DisjointAllocationPool& mem,
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std::vector<std::pair<size_t, size_t>> expectation);
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DisjointAllocationPool Make(std::vector<std::pair<size_t, size_t>> model);
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};
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void DisjointAllocationPoolTest::CheckLooksLike(
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const DisjointAllocationPool& mem,
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std::vector<std::pair<size_t, size_t>> expectation) {
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const auto& ranges = mem.ranges();
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CHECK_EQ(ranges.size(), expectation.size());
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auto iter = expectation.begin();
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for (auto it = ranges.begin(), e = ranges.end(); it != e; ++it, ++iter) {
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CHECK_EQ(it->first, A(iter->first));
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CHECK_EQ(it->second, A(iter->second));
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}
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}
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DisjointAllocationPool DisjointAllocationPoolTest::Make(
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std::vector<std::pair<size_t, size_t>> model) {
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DisjointAllocationPool ret;
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for (auto& pair : model) {
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ret.Merge(DisjointAllocationPool(A(pair.first), A(pair.second)));
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}
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return ret;
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}
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TEST_F(DisjointAllocationPoolTest, Construct) {
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DisjointAllocationPool a;
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CHECK(a.IsEmpty());
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CHECK_EQ(a.ranges().size(), 0);
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DisjointAllocationPool b = Make({{1, 5}});
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CHECK(!b.IsEmpty());
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CHECK_EQ(b.ranges().size(), 1);
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a.Merge(std::move(b));
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CheckLooksLike(a, {{1, 5}});
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DisjointAllocationPool c;
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a.Merge(std::move(c));
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CheckLooksLike(a, {{1, 5}});
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DisjointAllocationPool e, f;
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e.Merge(std::move(f));
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CHECK(e.IsEmpty());
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}
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TEST_F(DisjointAllocationPoolTest, SimpleExtract) {
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DisjointAllocationPool a = Make({{1, 5}});
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DisjointAllocationPool b = a.AllocatePool(2);
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CheckLooksLike(a, {{3, 5}});
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CheckLooksLike(b, {{1, 3}});
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a.Merge(std::move(b));
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CheckLooksLike(a, {{1, 5}});
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CHECK_EQ(a.ranges().size(), 1);
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CHECK_EQ(a.ranges().front().first, A(1));
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CHECK_EQ(a.ranges().front().second, A(5));
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}
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TEST_F(DisjointAllocationPoolTest, ExtractAll) {
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DisjointAllocationPool a(A(1), A(5));
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DisjointAllocationPool b = a.AllocatePool(4);
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CheckLooksLike(b, {{1, 5}});
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CHECK(a.IsEmpty());
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a.Merge(std::move(b));
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CheckLooksLike(a, {{1, 5}});
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}
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TEST_F(DisjointAllocationPoolTest, ExtractAccross) {
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DisjointAllocationPool a = Make({{1, 5}, {10, 20}});
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DisjointAllocationPool b = a.AllocatePool(5);
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CheckLooksLike(a, {{11, 20}});
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CheckLooksLike(b, {{1, 5}, {10, 11}});
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a.Merge(std::move(b));
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CheckLooksLike(a, {{1, 5}, {10, 20}});
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}
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TEST_F(DisjointAllocationPoolTest, ReassembleOutOfOrder) {
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DisjointAllocationPool a = Make({{1, 5}, {10, 15}});
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DisjointAllocationPool b = Make({{7, 8}, {20, 22}});
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a.Merge(std::move(b));
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CheckLooksLike(a, {{1, 5}, {7, 8}, {10, 15}, {20, 22}});
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DisjointAllocationPool c = Make({{1, 5}, {10, 15}});
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DisjointAllocationPool d = Make({{7, 8}, {20, 22}});
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d.Merge(std::move(c));
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CheckLooksLike(d, {{1, 5}, {7, 8}, {10, 15}, {20, 22}});
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}
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TEST_F(DisjointAllocationPoolTest, FailToExtract) {
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DisjointAllocationPool a = Make({{1, 5}});
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DisjointAllocationPool b = a.AllocatePool(5);
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CheckLooksLike(a, {{1, 5}});
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CHECK(b.IsEmpty());
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}
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TEST_F(DisjointAllocationPoolTest, FailToExtractExact) {
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DisjointAllocationPool a = Make({{1, 5}, {10, 14}});
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DisjointAllocationPool b = a.Allocate(5);
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CheckLooksLike(a, {{1, 5}, {10, 14}});
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CHECK(b.IsEmpty());
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}
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TEST_F(DisjointAllocationPoolTest, ExtractExact) {
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DisjointAllocationPool a = Make({{1, 5}, {10, 15}});
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DisjointAllocationPool b = a.Allocate(5);
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CheckLooksLike(a, {{1, 5}});
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CheckLooksLike(b, {{10, 15}});
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}
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TEST_F(DisjointAllocationPoolTest, Merging) {
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DisjointAllocationPool a = Make({{10, 15}, {20, 25}});
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a.Merge(Make({{15, 20}}));
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CheckLooksLike(a, {{10, 25}});
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}
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TEST_F(DisjointAllocationPoolTest, MergingMore) {
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DisjointAllocationPool a = Make({{10, 15}, {20, 25}, {30, 35}});
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a.Merge(Make({{15, 20}, {25, 30}}));
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CheckLooksLike(a, {{10, 35}});
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}
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TEST_F(DisjointAllocationPoolTest, MergingSkip) {
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DisjointAllocationPool a = Make({{10, 15}, {20, 25}, {30, 35}});
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a.Merge(Make({{25, 30}}));
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CheckLooksLike(a, {{10, 15}, {20, 35}});
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}
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TEST_F(DisjointAllocationPoolTest, MergingSkipLargerSrc) {
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DisjointAllocationPool a = Make({{10, 15}, {20, 25}, {30, 35}});
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a.Merge(Make({{25, 30}, {35, 40}}));
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CheckLooksLike(a, {{10, 15}, {20, 40}});
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}
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TEST_F(DisjointAllocationPoolTest, MergingSkipLargerSrcWithGap) {
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DisjointAllocationPool a = Make({{10, 15}, {20, 25}, {30, 35}});
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a.Merge(Make({{25, 30}, {36, 40}}));
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CheckLooksLike(a, {{10, 15}, {20, 35}, {36, 40}});
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}
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2018-03-19 12:34:59 +00:00
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enum ModuleStyle : int { Fixed = 0, Growable = 1 };
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class WasmCodeManagerTest : public TestWithContext,
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public ::testing::WithParamInterface<ModuleStyle> {
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public:
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using NativeModulePtr = std::unique_ptr<NativeModule>;
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// We pretend all our modules have 10 functions and no imports, just so
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// we can size up the code_table.
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NativeModulePtr AllocFixedModule(WasmCodeManager* manager, size_t size) {
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return manager->NewNativeModule(size, 10, 0, false);
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}
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NativeModulePtr AllocGrowableModule(WasmCodeManager* manager, size_t size) {
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return manager->NewNativeModule(size, 10, 0, true);
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}
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NativeModulePtr AllocModule(WasmCodeManager* manager, size_t size,
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ModuleStyle style) {
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switch (style) {
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case Fixed:
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return AllocFixedModule(manager, size);
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case Growable:
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return AllocGrowableModule(manager, size);
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default:
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UNREACHABLE();
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}
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}
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WasmCode* AddCode(NativeModule* native_module, uint32_t index, size_t size) {
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CodeDesc desc;
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memset(reinterpret_cast<void*>(&desc), 0, sizeof(CodeDesc));
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std::unique_ptr<byte[]> exec_buff(new byte[size]);
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desc.buffer = exec_buff.get();
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desc.instr_size = static_cast<int>(size);
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2018-03-23 11:30:26 +00:00
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Handle<ByteArray> source_pos = i_isolate()->factory()->empty_byte_array();
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return native_module->AddCode(desc, 0, index, 0, 0, {}, source_pos,
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WasmCode::kOther);
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}
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2017-12-15 17:59:57 +00:00
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size_t page() const { return AllocatePageSize(); }
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v8::Isolate* v8_isolate() const {
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return reinterpret_cast<v8::Isolate*>(isolate());
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}
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};
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2018-03-19 12:34:59 +00:00
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INSTANTIATE_TEST_CASE_P(Parameterized, WasmCodeManagerTest,
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::testing::Values(Fixed, Growable));
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TEST_P(WasmCodeManagerTest, EmptyCase) {
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WasmCodeManager manager(v8_isolate(), 0 * page());
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CHECK_EQ(0, manager.remaining_uncommitted());
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NativeModulePtr native_module = AllocModule(&manager, 1 * page(), GetParam());
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CHECK(native_module);
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ASSERT_DEATH_IF_SUPPORTED(AddCode(native_module.get(), 0, 10),
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"OOM in NativeModule::AddOwnedCode");
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}
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2018-03-19 12:34:59 +00:00
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TEST_P(WasmCodeManagerTest, AllocateAndGoOverLimit) {
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WasmCodeManager manager(v8_isolate(), 1 * page());
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CHECK_EQ(1 * page(), manager.remaining_uncommitted());
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NativeModulePtr native_module = AllocModule(&manager, 1 * page(), GetParam());
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CHECK(native_module);
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CHECK_EQ(1 * page(), manager.remaining_uncommitted());
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uint32_t index = 0;
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WasmCode* code = AddCode(native_module.get(), index++, 1 * kCodeAlignment);
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CHECK_NOT_NULL(code);
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CHECK_EQ(0, manager.remaining_uncommitted());
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code = AddCode(native_module.get(), index++, 3 * kCodeAlignment);
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CHECK_NOT_NULL(code);
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CHECK_EQ(0, manager.remaining_uncommitted());
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code = AddCode(native_module.get(), index++, page() - 4 * kCodeAlignment);
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CHECK_NOT_NULL(code);
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CHECK_EQ(0, manager.remaining_uncommitted());
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ASSERT_DEATH_IF_SUPPORTED(
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AddCode(native_module.get(), index++, 1 * kCodeAlignment),
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"OOM in NativeModule::AddOwnedCode");
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}
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2018-03-19 12:34:59 +00:00
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TEST_P(WasmCodeManagerTest, TotalLimitIrrespectiveOfModuleCount) {
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WasmCodeManager manager(v8_isolate(), 1 * page());
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NativeModulePtr nm1 = AllocModule(&manager, 1 * page(), GetParam());
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NativeModulePtr nm2 = AllocModule(&manager, 1 * page(), GetParam());
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CHECK(nm1);
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CHECK(nm2);
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WasmCode* code = AddCode(nm1.get(), 0, 1 * page());
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CHECK_NOT_NULL(code);
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ASSERT_DEATH_IF_SUPPORTED(AddCode(nm2.get(), 0, 1 * page()),
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"OOM in NativeModule::AddOwnedCode");
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}
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2018-03-19 12:34:59 +00:00
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TEST_P(WasmCodeManagerTest, DifferentHeapsApplyLimitsIndependently) {
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WasmCodeManager manager1(v8_isolate(), 1 * page());
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WasmCodeManager manager2(v8_isolate(), 2 * page());
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NativeModulePtr nm1 = AllocModule(&manager1, 1 * page(), GetParam());
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NativeModulePtr nm2 = AllocModule(&manager2, 1 * page(), GetParam());
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CHECK(nm1);
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CHECK(nm2);
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WasmCode* code = AddCode(nm1.get(), 0, 1 * page());
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CHECK_NOT_NULL(code);
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CHECK_EQ(0, manager1.remaining_uncommitted());
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code = AddCode(nm2.get(), 0, 1 * page());
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CHECK_NOT_NULL(code);
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}
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2018-03-19 12:34:59 +00:00
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TEST_P(WasmCodeManagerTest, GrowingVsFixedModule) {
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WasmCodeManager manager(v8_isolate(), 3 * page());
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NativeModulePtr nm = AllocModule(&manager, 1 * page(), GetParam());
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if (GetParam() == Fixed) {
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ASSERT_DEATH_IF_SUPPORTED(AddCode(nm.get(), 0, 1 * page() + kCodeAlignment),
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"OOM in NativeModule::AddOwnedCode");
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} else {
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CHECK_NOT_NULL(AddCode(nm.get(), 0, 1 * page() + kCodeAlignment));
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CHECK_EQ(manager.remaining_uncommitted(), 1 * page());
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}
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}
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2018-03-19 12:34:59 +00:00
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TEST_P(WasmCodeManagerTest, CommitIncrements) {
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WasmCodeManager manager(v8_isolate(), 10 * page());
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NativeModulePtr nm = AllocModule(&manager, 3 * page(), GetParam());
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WasmCode* code = AddCode(nm.get(), 0, kCodeAlignment);
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CHECK_NOT_NULL(code);
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CHECK_EQ(manager.remaining_uncommitted(), 9 * page());
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code = AddCode(nm.get(), 1, 2 * page());
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CHECK_NOT_NULL(code);
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CHECK_EQ(manager.remaining_uncommitted(), 7 * page());
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code = AddCode(nm.get(), 2, page() - kCodeAlignment);
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CHECK_NOT_NULL(code);
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CHECK_EQ(manager.remaining_uncommitted(), 7 * page());
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}
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2018-03-19 12:34:59 +00:00
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TEST_P(WasmCodeManagerTest, Lookup) {
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WasmCodeManager manager(v8_isolate(), 2 * page());
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NativeModulePtr nm1 = AllocModule(&manager, 1 * page(), GetParam());
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NativeModulePtr nm2 = AllocModule(&manager, 1 * page(), GetParam());
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WasmCode* code1_0 = AddCode(nm1.get(), 0, kCodeAlignment);
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CHECK_EQ(nm1.get(), code1_0->native_module());
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WasmCode* code1_1 = AddCode(nm1.get(), 1, kCodeAlignment);
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|
|
|
WasmCode* code2_0 = AddCode(nm2.get(), 0, kCodeAlignment);
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|
WasmCode* code2_1 = AddCode(nm2.get(), 1, kCodeAlignment);
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|
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CHECK_EQ(nm2.get(), code2_1->native_module());
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|
|
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|
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|
CHECK_EQ(0, code1_0->index());
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|
|
|
CHECK_EQ(1, code1_1->index());
|
|
|
|
CHECK_EQ(0, code2_0->index());
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|
|
|
CHECK_EQ(1, code2_1->index());
|
|
|
|
|
|
|
|
// we know the manager object is allocated here, so we shouldn't
|
|
|
|
// find any WasmCode* associated with that ptr.
|
|
|
|
WasmCode* not_found = manager.LookupCode(reinterpret_cast<Address>(&manager));
|
|
|
|
CHECK_NULL(not_found);
|
|
|
|
WasmCode* found = manager.LookupCode(code1_0->instructions().start());
|
|
|
|
CHECK_EQ(found, code1_0);
|
|
|
|
found = manager.LookupCode(code2_1->instructions().start() +
|
|
|
|
(code2_1->instructions().size() / 2));
|
|
|
|
CHECK_EQ(found, code2_1);
|
|
|
|
found = manager.LookupCode(code2_1->instructions().start() +
|
|
|
|
code2_1->instructions().size() - 1);
|
|
|
|
CHECK_EQ(found, code2_1);
|
|
|
|
found = manager.LookupCode(code2_1->instructions().start() +
|
|
|
|
code2_1->instructions().size());
|
|
|
|
CHECK_NULL(found);
|
|
|
|
Address mid_code1_1 =
|
|
|
|
code1_1->instructions().start() + (code1_1->instructions().size() / 2);
|
|
|
|
CHECK_EQ(code1_1, manager.LookupCode(mid_code1_1));
|
|
|
|
nm1.reset();
|
|
|
|
CHECK_NULL(manager.LookupCode(mid_code1_1));
|
2017-11-20 21:34:04 +00:00
|
|
|
}
|
|
|
|
|
2018-03-19 12:34:59 +00:00
|
|
|
TEST_P(WasmCodeManagerTest, MultiManagerLookup) {
|
|
|
|
WasmCodeManager manager1(v8_isolate(), 2 * page());
|
|
|
|
WasmCodeManager manager2(v8_isolate(), 2 * page());
|
2017-11-20 21:34:04 +00:00
|
|
|
|
2018-03-19 12:34:59 +00:00
|
|
|
NativeModulePtr nm1 = AllocModule(&manager1, 1 * page(), GetParam());
|
|
|
|
NativeModulePtr nm2 = AllocModule(&manager2, 1 * page(), GetParam());
|
2017-11-20 21:34:04 +00:00
|
|
|
|
2018-03-19 12:34:59 +00:00
|
|
|
WasmCode* code1_0 = AddCode(nm1.get(), 0, kCodeAlignment);
|
|
|
|
CHECK_EQ(nm1.get(), code1_0->native_module());
|
|
|
|
WasmCode* code1_1 = AddCode(nm1.get(), 1, kCodeAlignment);
|
|
|
|
WasmCode* code2_0 = AddCode(nm2.get(), 0, kCodeAlignment);
|
|
|
|
WasmCode* code2_1 = AddCode(nm2.get(), 1, kCodeAlignment);
|
|
|
|
CHECK_EQ(nm2.get(), code2_1->native_module());
|
2017-11-20 21:34:04 +00:00
|
|
|
|
2018-03-19 12:34:59 +00:00
|
|
|
CHECK_EQ(0, code1_0->index());
|
|
|
|
CHECK_EQ(1, code1_1->index());
|
|
|
|
CHECK_EQ(0, code2_0->index());
|
|
|
|
CHECK_EQ(1, code2_1->index());
|
2017-11-20 21:34:04 +00:00
|
|
|
|
2018-03-19 12:34:59 +00:00
|
|
|
CHECK_EQ(code1_0, manager1.LookupCode(code1_0->instructions().start()));
|
|
|
|
CHECK_NULL(manager2.LookupCode(code1_0->instructions().start()));
|
2017-11-20 21:34:04 +00:00
|
|
|
}
|
|
|
|
|
2018-03-19 12:34:59 +00:00
|
|
|
TEST_P(WasmCodeManagerTest, LookupWorksAfterRewrite) {
|
|
|
|
WasmCodeManager manager(v8_isolate(), 2 * page());
|
|
|
|
|
|
|
|
NativeModulePtr nm1 = AllocModule(&manager, 1 * page(), GetParam());
|
|
|
|
|
|
|
|
WasmCode* code0 = AddCode(nm1.get(), 0, kCodeAlignment);
|
|
|
|
WasmCode* code1 = AddCode(nm1.get(), 1, kCodeAlignment);
|
|
|
|
CHECK_EQ(0, code0->index());
|
|
|
|
CHECK_EQ(1, code1->index());
|
|
|
|
CHECK_EQ(code1, manager.LookupCode(code1->instructions().start()));
|
|
|
|
WasmCode* code1_1 = AddCode(nm1.get(), 1, kCodeAlignment);
|
|
|
|
CHECK_EQ(1, code1_1->index());
|
|
|
|
CHECK_EQ(code1, manager.LookupCode(code1->instructions().start()));
|
|
|
|
CHECK_EQ(code1_1, manager.LookupCode(code1_1->instructions().start()));
|
2017-11-20 21:34:04 +00:00
|
|
|
}
|
|
|
|
|
2017-09-28 17:55:52 +00:00
|
|
|
} // namespace wasm_heap_unittest
|
2017-09-16 05:22:38 +00:00
|
|
|
} // namespace wasm
|
|
|
|
} // namespace internal
|
|
|
|
} // namespace v8
|