| /* |
| * Copyright (C) 2014 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 "stack_map.h" |
| |
| #include "art_method.h" |
| #include "base/arena_bit_vector.h" |
| #include "base/malloc_arena_pool.h" |
| #include "stack_map_stream.h" |
| |
| #include "gtest/gtest.h" |
| |
| namespace art { |
| |
| // Check that the stack mask of given stack map is identical |
| // to the given bit vector. Returns true if they are same. |
| static bool CheckStackMask( |
| const CodeInfo& code_info, |
| const StackMap& stack_map, |
| const BitVector& bit_vector) { |
| BitMemoryRegion stack_mask = code_info.GetStackMaskOf(stack_map); |
| if (bit_vector.GetNumberOfBits() > stack_mask.size_in_bits()) { |
| return false; |
| } |
| for (size_t i = 0; i < stack_mask.size_in_bits(); ++i) { |
| if (stack_mask.LoadBit(i) != bit_vector.IsBitSet(i)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| using Kind = DexRegisterLocation::Kind; |
| |
| constexpr static uint32_t kPcAlign = GetInstructionSetInstructionAlignment(kRuntimeISA); |
| |
| TEST(StackMapTest, Test1) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&allocator, 0, false); |
| size_t number_of_dex_registers = 2; |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Short location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo code_info(region); |
| ASSERT_EQ(1u, code_info.GetNumberOfStackMaps()); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(); |
| ASSERT_EQ(2u, number_of_catalog_entries); |
| |
| StackMap stack_map = code_info.GetStackMapAt(0); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64 * kPcAlign))); |
| ASSERT_EQ(0u, stack_map.GetDexPc()); |
| ASSERT_EQ(64u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, stack_map, sp_mask)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters()); |
| |
| ASSERT_EQ(Kind::kInStack, dex_register_map.GetLocationKind(0)); |
| ASSERT_EQ(Kind::kConstant, dex_register_map.GetLocationKind(1)); |
| ASSERT_EQ(0, dex_register_map.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(-2, dex_register_map.GetConstant(1)); |
| |
| DexRegisterLocation location0 = code_info.GetDexRegisterCatalogEntry(0); |
| DexRegisterLocation location1 = code_info.GetDexRegisterCatalogEntry(1); |
| ASSERT_EQ(Kind::kInStack, location0.GetKind()); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(0, location0.GetValue()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo()); |
| } |
| |
| TEST(StackMapTest, Test2) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| ArtMethod art_method; |
| |
| ArenaBitVector sp_mask1(&allocator, 0, true); |
| sp_mask1.SetBit(2); |
| sp_mask1.SetBit(4); |
| size_t number_of_dex_registers = 2; |
| size_t number_of_dex_registers_in_inline_info = 0; |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask1, number_of_dex_registers, 2); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.BeginInlineInfoEntry(&art_method, 3, number_of_dex_registers_in_inline_info); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 2, number_of_dex_registers_in_inline_info); |
| stream.EndInlineInfoEntry(); |
| stream.EndStackMapEntry(); |
| |
| ArenaBitVector sp_mask2(&allocator, 0, true); |
| sp_mask2.SetBit(3); |
| sp_mask2.SetBit(8); |
| stream.BeginStackMapEntry(1, 128 * kPcAlign, 0xFF, &sp_mask2, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 18); // Short location. |
| stream.AddDexRegisterEntry(Kind::kInFpuRegister, 3); // Short location. |
| stream.EndStackMapEntry(); |
| |
| ArenaBitVector sp_mask3(&allocator, 0, true); |
| sp_mask3.SetBit(1); |
| sp_mask3.SetBit(5); |
| stream.BeginStackMapEntry(2, 192 * kPcAlign, 0xAB, &sp_mask3, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 6); // Short location. |
| stream.AddDexRegisterEntry(Kind::kInRegisterHigh, 8); // Short location. |
| stream.EndStackMapEntry(); |
| |
| ArenaBitVector sp_mask4(&allocator, 0, true); |
| sp_mask4.SetBit(6); |
| sp_mask4.SetBit(7); |
| stream.BeginStackMapEntry(3, 256 * kPcAlign, 0xCD, &sp_mask4, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInFpuRegister, 3); // Short location, same in stack map 2. |
| stream.AddDexRegisterEntry(Kind::kInFpuRegisterHigh, 1); // Short location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo code_info(region); |
| ASSERT_EQ(4u, code_info.GetNumberOfStackMaps()); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(); |
| ASSERT_EQ(7u, number_of_catalog_entries); |
| |
| // First stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(0); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64 * kPcAlign))); |
| ASSERT_EQ(0u, stack_map.GetDexPc()); |
| ASSERT_EQ(64u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, stack_map, sp_mask1)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters()); |
| |
| ASSERT_EQ(Kind::kInStack, dex_register_map.GetLocationKind(0)); |
| ASSERT_EQ(Kind::kConstant, dex_register_map.GetLocationKind(1)); |
| ASSERT_EQ(0, dex_register_map.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(-2, dex_register_map.GetConstant(1)); |
| |
| DexRegisterLocation location0 = code_info.GetDexRegisterCatalogEntry(0); |
| DexRegisterLocation location1 = code_info.GetDexRegisterCatalogEntry(1); |
| ASSERT_EQ(Kind::kInStack, location0.GetKind()); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(0, location0.GetValue()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| ASSERT_TRUE(stack_map.HasInlineInfo()); |
| InlineInfo inline_info0 = code_info.GetInlineInfoAtDepth(stack_map, 0); |
| InlineInfo inline_info1 = code_info.GetInlineInfoAtDepth(stack_map, 1); |
| ASSERT_EQ(2u, code_info.GetInlineDepthOf(stack_map)); |
| ASSERT_EQ(3u, inline_info0.GetDexPc()); |
| ASSERT_EQ(2u, inline_info1.GetDexPc()); |
| ASSERT_TRUE(inline_info0.EncodesArtMethod()); |
| ASSERT_TRUE(inline_info1.EncodesArtMethod()); |
| } |
| |
| // Second stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(1); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(1u))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(128u * kPcAlign))); |
| ASSERT_EQ(1u, stack_map.GetDexPc()); |
| ASSERT_EQ(128u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0xFFu, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, stack_map, sp_mask2)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters()); |
| |
| ASSERT_EQ(Kind::kInRegister, dex_register_map.GetLocationKind(0)); |
| ASSERT_EQ(Kind::kInFpuRegister, dex_register_map.GetLocationKind(1)); |
| ASSERT_EQ(18, dex_register_map.GetMachineRegister(0)); |
| ASSERT_EQ(3, dex_register_map.GetMachineRegister(1)); |
| |
| DexRegisterLocation location0 = code_info.GetDexRegisterCatalogEntry(2); |
| DexRegisterLocation location1 = code_info.GetDexRegisterCatalogEntry(3); |
| ASSERT_EQ(Kind::kInRegister, location0.GetKind()); |
| ASSERT_EQ(Kind::kInFpuRegister, location1.GetKind()); |
| ASSERT_EQ(18, location0.GetValue()); |
| ASSERT_EQ(3, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo()); |
| } |
| |
| // Third stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(2); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(2u))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(192u * kPcAlign))); |
| ASSERT_EQ(2u, stack_map.GetDexPc()); |
| ASSERT_EQ(192u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0xABu, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, stack_map, sp_mask3)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters()); |
| |
| ASSERT_EQ(Kind::kInRegister, dex_register_map.GetLocationKind(0)); |
| ASSERT_EQ(Kind::kInRegisterHigh, dex_register_map.GetLocationKind(1)); |
| ASSERT_EQ(6, dex_register_map.GetMachineRegister(0)); |
| ASSERT_EQ(8, dex_register_map.GetMachineRegister(1)); |
| |
| DexRegisterLocation location0 = code_info.GetDexRegisterCatalogEntry(4); |
| DexRegisterLocation location1 = code_info.GetDexRegisterCatalogEntry(5); |
| ASSERT_EQ(Kind::kInRegister, location0.GetKind()); |
| ASSERT_EQ(Kind::kInRegisterHigh, location1.GetKind()); |
| ASSERT_EQ(6, location0.GetValue()); |
| ASSERT_EQ(8, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo()); |
| } |
| |
| // Fourth stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(3); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(3u))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(256u * kPcAlign))); |
| ASSERT_EQ(3u, stack_map.GetDexPc()); |
| ASSERT_EQ(256u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0xCDu, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, stack_map, sp_mask4)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters()); |
| |
| ASSERT_EQ(Kind::kInFpuRegister, dex_register_map.GetLocationKind(0)); |
| ASSERT_EQ(Kind::kInFpuRegisterHigh, dex_register_map.GetLocationKind(1)); |
| ASSERT_EQ(3, dex_register_map.GetMachineRegister(0)); |
| ASSERT_EQ(1, dex_register_map.GetMachineRegister(1)); |
| |
| DexRegisterLocation location0 = code_info.GetDexRegisterCatalogEntry(3); |
| DexRegisterLocation location1 = code_info.GetDexRegisterCatalogEntry(6); |
| ASSERT_EQ(Kind::kInFpuRegister, location0.GetKind()); |
| ASSERT_EQ(Kind::kInFpuRegisterHigh, location1.GetKind()); |
| ASSERT_EQ(3, location0.GetValue()); |
| ASSERT_EQ(1, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo()); |
| } |
| } |
| |
| TEST(StackMapTest, TestDeduplicateInlineInfoDexRegisterMap) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| ArtMethod art_method; |
| |
| ArenaBitVector sp_mask1(&allocator, 0, true); |
| sp_mask1.SetBit(2); |
| sp_mask1.SetBit(4); |
| const size_t number_of_dex_registers = 2; |
| const size_t number_of_dex_registers_in_inline_info = 2; |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask1, number_of_dex_registers, 1); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.BeginInlineInfoEntry(&art_method, 3, number_of_dex_registers_in_inline_info); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndInlineInfoEntry(); |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo code_info(region); |
| ASSERT_EQ(1u, code_info.GetNumberOfStackMaps()); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(); |
| ASSERT_EQ(2u, number_of_catalog_entries); |
| |
| // First stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(0); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64 * kPcAlign))); |
| ASSERT_EQ(0u, stack_map.GetDexPc()); |
| ASSERT_EQ(64u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, stack_map, sp_mask1)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| DexRegisterMap map(code_info.GetDexRegisterMapOf(stack_map, number_of_dex_registers)); |
| ASSERT_TRUE(map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, map.GetNumberOfLiveDexRegisters()); |
| |
| ASSERT_EQ(Kind::kInStack, map.GetLocationKind(0)); |
| ASSERT_EQ(Kind::kConstant, map.GetLocationKind(1)); |
| ASSERT_EQ(0, map.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(-2, map.GetConstant(1)); |
| |
| DexRegisterLocation location0 = code_info.GetDexRegisterCatalogEntry(0); |
| DexRegisterLocation location1 = code_info.GetDexRegisterCatalogEntry(1); |
| ASSERT_EQ(Kind::kInStack, location0.GetKind()); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(0, location0.GetValue()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| // Test that the inline info dex register map deduplicated to the same offset as the stack map |
| // one. |
| ASSERT_TRUE(stack_map.HasInlineInfo()); |
| InlineInfo inline_info = code_info.GetInlineInfoAtDepth(stack_map, 0); |
| EXPECT_EQ(inline_info.GetDexRegisterMapIndex(), |
| stack_map.GetDexRegisterMapIndex()); |
| } |
| } |
| |
| TEST(StackMapTest, TestNonLiveDexRegisters) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&allocator, 0, false); |
| uint32_t number_of_dex_registers = 2; |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kNone, 0); // No location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo code_info(region); |
| ASSERT_EQ(1u, code_info.GetNumberOfStackMaps()); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(); |
| ASSERT_EQ(1u, number_of_catalog_entries); |
| |
| StackMap stack_map = code_info.GetStackMapAt(0); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64 * kPcAlign))); |
| ASSERT_EQ(0u, stack_map.GetDexPc()); |
| ASSERT_EQ(64u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, number_of_dex_registers); |
| ASSERT_FALSE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(1u, dex_register_map.GetNumberOfLiveDexRegisters()); |
| |
| ASSERT_EQ(Kind::kNone, dex_register_map.GetLocationKind(0)); |
| ASSERT_EQ(Kind::kConstant, dex_register_map.GetLocationKind(1)); |
| ASSERT_EQ(-2, dex_register_map.GetConstant(1)); |
| |
| DexRegisterLocation location1 = code_info.GetDexRegisterCatalogEntry(0); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo()); |
| } |
| |
| TEST(StackMapTest, TestShareDexRegisterMap) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&allocator, 0, false); |
| uint32_t number_of_dex_registers = 2; |
| // First stack map. |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| // Second stack map, which should share the same dex register map. |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| // Third stack map (doesn't share the dex register map). |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 2); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo ci(region); |
| |
| // Verify first stack map. |
| StackMap sm0 = ci.GetStackMapAt(0); |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm0, number_of_dex_registers); |
| ASSERT_EQ(0, dex_registers0.GetMachineRegister(0)); |
| ASSERT_EQ(-2, dex_registers0.GetConstant(1)); |
| |
| // Verify second stack map. |
| StackMap sm1 = ci.GetStackMapAt(1); |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapOf(sm1, number_of_dex_registers); |
| ASSERT_EQ(0, dex_registers1.GetMachineRegister(0)); |
| ASSERT_EQ(-2, dex_registers1.GetConstant(1)); |
| |
| // Verify third stack map. |
| StackMap sm2 = ci.GetStackMapAt(2); |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapOf(sm2, number_of_dex_registers); |
| ASSERT_EQ(2, dex_registers2.GetMachineRegister(0)); |
| ASSERT_EQ(-2, dex_registers2.GetConstant(1)); |
| |
| // Verify dex register map offsets. |
| ASSERT_EQ(sm0.GetDexRegisterMapIndex(), |
| sm1.GetDexRegisterMapIndex()); |
| ASSERT_NE(sm0.GetDexRegisterMapIndex(), |
| sm2.GetDexRegisterMapIndex()); |
| ASSERT_NE(sm1.GetDexRegisterMapIndex(), |
| sm2.GetDexRegisterMapIndex()); |
| } |
| |
| TEST(StackMapTest, TestNoDexRegisterMap) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&allocator, 0, false); |
| uint32_t number_of_dex_registers = 0; |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.EndStackMapEntry(); |
| |
| number_of_dex_registers = 1; |
| stream.BeginStackMapEntry(1, 68 * kPcAlign, 0x4, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kNone, 0); |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo code_info(region); |
| ASSERT_EQ(2u, code_info.GetNumberOfStackMaps()); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(); |
| ASSERT_EQ(0u, number_of_catalog_entries); |
| |
| StackMap stack_map = code_info.GetStackMapAt(0); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64 * kPcAlign))); |
| ASSERT_EQ(0u, stack_map.GetDexPc()); |
| ASSERT_EQ(64u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_FALSE(stack_map.HasDexRegisterMap()); |
| ASSERT_FALSE(stack_map.HasInlineInfo()); |
| |
| stack_map = code_info.GetStackMapAt(1); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(1))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(68 * kPcAlign))); |
| ASSERT_EQ(1u, stack_map.GetDexPc()); |
| ASSERT_EQ(68u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA)); |
| ASSERT_EQ(0x4u, code_info.GetRegisterMaskOf(stack_map)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap()); |
| ASSERT_FALSE(stack_map.HasInlineInfo()); |
| } |
| |
| TEST(StackMapTest, InlineTest) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| ArtMethod art_method; |
| |
| ArenaBitVector sp_mask1(&allocator, 0, true); |
| sp_mask1.SetBit(2); |
| sp_mask1.SetBit(4); |
| |
| // First stack map. |
| stream.BeginStackMapEntry(0, 64 * kPcAlign, 0x3, &sp_mask1, 2, 2); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); |
| stream.AddDexRegisterEntry(Kind::kConstant, 4); |
| |
| stream.BeginInlineInfoEntry(&art_method, 2, 1); |
| stream.AddDexRegisterEntry(Kind::kInStack, 8); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 3, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 16); |
| stream.AddDexRegisterEntry(Kind::kConstant, 20); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 15); |
| stream.EndInlineInfoEntry(); |
| |
| stream.EndStackMapEntry(); |
| |
| // Second stack map. |
| stream.BeginStackMapEntry(2, 22 * kPcAlign, 0x3, &sp_mask1, 2, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 56); |
| stream.AddDexRegisterEntry(Kind::kConstant, 0); |
| |
| stream.BeginInlineInfoEntry(&art_method, 2, 1); |
| stream.AddDexRegisterEntry(Kind::kInStack, 12); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 3, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 80); |
| stream.AddDexRegisterEntry(Kind::kConstant, 10); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 5); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 5, 0); |
| stream.EndInlineInfoEntry(); |
| |
| stream.EndStackMapEntry(); |
| |
| // Third stack map. |
| stream.BeginStackMapEntry(4, 56 * kPcAlign, 0x3, &sp_mask1, 2, 0); |
| stream.AddDexRegisterEntry(Kind::kNone, 0); |
| stream.AddDexRegisterEntry(Kind::kConstant, 4); |
| stream.EndStackMapEntry(); |
| |
| // Fourth stack map. |
| stream.BeginStackMapEntry(6, 78 * kPcAlign, 0x3, &sp_mask1, 2, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 56); |
| stream.AddDexRegisterEntry(Kind::kConstant, 0); |
| |
| stream.BeginInlineInfoEntry(&art_method, 2, 0); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 5, 1); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 2); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 10, 2); |
| stream.AddDexRegisterEntry(Kind::kNone, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 3); |
| stream.EndInlineInfoEntry(); |
| |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo ci(region); |
| |
| { |
| // Verify first stack map. |
| StackMap sm0 = ci.GetStackMapAt(0); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm0, 2); |
| ASSERT_EQ(0, dex_registers0.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(4, dex_registers0.GetConstant(1)); |
| |
| InlineInfo if0_0 = ci.GetInlineInfoAtDepth(sm0, 0); |
| InlineInfo if0_1 = ci.GetInlineInfoAtDepth(sm0, 1); |
| ASSERT_EQ(2u, ci.GetInlineDepthOf(sm0)); |
| ASSERT_EQ(2u, if0_0.GetDexPc()); |
| ASSERT_TRUE(if0_0.EncodesArtMethod()); |
| ASSERT_EQ(3u, if0_1.GetDexPc()); |
| ASSERT_TRUE(if0_1.EncodesArtMethod()); |
| |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapAtDepth(0, sm0, 1); |
| ASSERT_EQ(8, dex_registers1.GetStackOffsetInBytes(0)); |
| |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapAtDepth(1, sm0, 3); |
| ASSERT_EQ(16, dex_registers2.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(20, dex_registers2.GetConstant(1)); |
| ASSERT_EQ(15, dex_registers2.GetMachineRegister(2)); |
| } |
| |
| { |
| // Verify second stack map. |
| StackMap sm1 = ci.GetStackMapAt(1); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm1, 2); |
| ASSERT_EQ(56, dex_registers0.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(0, dex_registers0.GetConstant(1)); |
| |
| InlineInfo if1_0 = ci.GetInlineInfoAtDepth(sm1, 0); |
| InlineInfo if1_1 = ci.GetInlineInfoAtDepth(sm1, 1); |
| InlineInfo if1_2 = ci.GetInlineInfoAtDepth(sm1, 2); |
| ASSERT_EQ(3u, ci.GetInlineDepthOf(sm1)); |
| ASSERT_EQ(2u, if1_0.GetDexPc()); |
| ASSERT_TRUE(if1_0.EncodesArtMethod()); |
| ASSERT_EQ(3u, if1_1.GetDexPc()); |
| ASSERT_TRUE(if1_1.EncodesArtMethod()); |
| ASSERT_EQ(5u, if1_2.GetDexPc()); |
| ASSERT_TRUE(if1_2.EncodesArtMethod()); |
| |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapAtDepth(0, sm1, 1); |
| ASSERT_EQ(12, dex_registers1.GetStackOffsetInBytes(0)); |
| |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapAtDepth(1, sm1, 3); |
| ASSERT_EQ(80, dex_registers2.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(10, dex_registers2.GetConstant(1)); |
| ASSERT_EQ(5, dex_registers2.GetMachineRegister(2)); |
| |
| ASSERT_FALSE(if1_2.HasDexRegisterMap()); |
| } |
| |
| { |
| // Verify third stack map. |
| StackMap sm2 = ci.GetStackMapAt(2); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm2, 2); |
| ASSERT_FALSE(dex_registers0.IsDexRegisterLive(0)); |
| ASSERT_EQ(4, dex_registers0.GetConstant(1)); |
| ASSERT_FALSE(sm2.HasInlineInfo()); |
| } |
| |
| { |
| // Verify fourth stack map. |
| StackMap sm3 = ci.GetStackMapAt(3); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm3, 2); |
| ASSERT_EQ(56, dex_registers0.GetStackOffsetInBytes(0)); |
| ASSERT_EQ(0, dex_registers0.GetConstant(1)); |
| |
| InlineInfo if2_0 = ci.GetInlineInfoAtDepth(sm3, 0); |
| InlineInfo if2_1 = ci.GetInlineInfoAtDepth(sm3, 1); |
| InlineInfo if2_2 = ci.GetInlineInfoAtDepth(sm3, 2); |
| ASSERT_EQ(3u, ci.GetInlineDepthOf(sm3)); |
| ASSERT_EQ(2u, if2_0.GetDexPc()); |
| ASSERT_TRUE(if2_0.EncodesArtMethod()); |
| ASSERT_EQ(5u, if2_1.GetDexPc()); |
| ASSERT_TRUE(if2_1.EncodesArtMethod()); |
| ASSERT_EQ(10u, if2_2.GetDexPc()); |
| ASSERT_TRUE(if2_2.EncodesArtMethod()); |
| |
| ASSERT_FALSE(if2_0.HasDexRegisterMap()); |
| |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapAtDepth(1, sm3, 1); |
| ASSERT_EQ(2, dex_registers1.GetMachineRegister(0)); |
| |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapAtDepth(2, sm3, 2); |
| ASSERT_FALSE(dex_registers2.IsDexRegisterLive(0)); |
| ASSERT_EQ(3, dex_registers2.GetMachineRegister(1)); |
| } |
| } |
| |
| TEST(StackMapTest, PackedNativePcTest) { |
| // Test minimum alignments, and decoding. |
| uint32_t packed_thumb2 = |
| StackMap::PackNativePc(kThumb2InstructionAlignment, InstructionSet::kThumb2); |
| uint32_t packed_arm64 = |
| StackMap::PackNativePc(kArm64InstructionAlignment, InstructionSet::kArm64); |
| uint32_t packed_x86 = |
| StackMap::PackNativePc(kX86InstructionAlignment, InstructionSet::kX86); |
| uint32_t packed_x86_64 = |
| StackMap::PackNativePc(kX86_64InstructionAlignment, InstructionSet::kX86_64); |
| uint32_t packed_mips = |
| StackMap::PackNativePc(kMipsInstructionAlignment, InstructionSet::kMips); |
| uint32_t packed_mips64 = |
| StackMap::PackNativePc(kMips64InstructionAlignment, InstructionSet::kMips64); |
| EXPECT_EQ(StackMap::UnpackNativePc(packed_thumb2, InstructionSet::kThumb2), |
| kThumb2InstructionAlignment); |
| EXPECT_EQ(StackMap::UnpackNativePc(packed_arm64, InstructionSet::kArm64), |
| kArm64InstructionAlignment); |
| EXPECT_EQ(StackMap::UnpackNativePc(packed_x86, InstructionSet::kX86), |
| kX86InstructionAlignment); |
| EXPECT_EQ(StackMap::UnpackNativePc(packed_x86_64, InstructionSet::kX86_64), |
| kX86_64InstructionAlignment); |
| EXPECT_EQ(StackMap::UnpackNativePc(packed_mips, InstructionSet::kMips), |
| kMipsInstructionAlignment); |
| EXPECT_EQ(StackMap::UnpackNativePc(packed_mips64, InstructionSet::kMips64), |
| kMips64InstructionAlignment); |
| } |
| |
| TEST(StackMapTest, TestDeduplicateStackMask) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&allocator, 0, true); |
| sp_mask.SetBit(1); |
| sp_mask.SetBit(4); |
| stream.BeginStackMapEntry(0, 4 * kPcAlign, 0x3, &sp_mask, 0, 0); |
| stream.EndStackMapEntry(); |
| stream.BeginStackMapEntry(0, 8 * kPcAlign, 0x3, &sp_mask, 0, 0); |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = allocator.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillInCodeInfo(region); |
| |
| CodeInfo code_info(region); |
| ASSERT_EQ(2u, code_info.GetNumberOfStackMaps()); |
| |
| StackMap stack_map1 = code_info.GetStackMapForNativePcOffset(4 * kPcAlign); |
| StackMap stack_map2 = code_info.GetStackMapForNativePcOffset(8 * kPcAlign); |
| EXPECT_EQ(stack_map1.GetStackMaskIndex(), |
| stack_map2.GetStackMaskIndex()); |
| } |
| |
| TEST(StackMapTest, TestInvokeInfo) { |
| MallocArenaPool pool; |
| ArenaStack arena_stack(&pool); |
| ScopedArenaAllocator allocator(&arena_stack); |
| StackMapStream stream(&allocator, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&allocator, 0, true); |
| sp_mask.SetBit(1); |
| stream.BeginStackMapEntry(0, 4 * kPcAlign, 0x3, &sp_mask, 0, 0); |
| stream.AddInvoke(kSuper, 1); |
| stream.EndStackMapEntry(); |
| stream.BeginStackMapEntry(0, 8 * kPcAlign, 0x3, &sp_mask, 0, 0); |
| stream.AddInvoke(kStatic, 3); |
| stream.EndStackMapEntry(); |
| stream.BeginStackMapEntry(0, 16 * kPcAlign, 0x3, &sp_mask, 0, 0); |
| stream.AddInvoke(kDirect, 65535); |
| stream.EndStackMapEntry(); |
| |
| const size_t code_info_size = stream.PrepareForFillIn(); |
| MemoryRegion code_info_region(allocator.Alloc(code_info_size, kArenaAllocMisc), code_info_size); |
| stream.FillInCodeInfo(code_info_region); |
| |
| const size_t method_info_size = stream.ComputeMethodInfoSize(); |
| MemoryRegion method_info_region(allocator.Alloc(method_info_size, kArenaAllocMisc), |
| method_info_size); |
| stream.FillInMethodInfo(method_info_region); |
| |
| CodeInfo code_info(code_info_region); |
| MethodInfo method_info(method_info_region.begin()); |
| ASSERT_EQ(3u, code_info.GetNumberOfStackMaps()); |
| |
| InvokeInfo invoke1(code_info.GetInvokeInfoForNativePcOffset(4 * kPcAlign)); |
| InvokeInfo invoke2(code_info.GetInvokeInfoForNativePcOffset(8 * kPcAlign)); |
| InvokeInfo invoke3(code_info.GetInvokeInfoForNativePcOffset(16 * kPcAlign)); |
| InvokeInfo invoke_invalid(code_info.GetInvokeInfoForNativePcOffset(12)); |
| EXPECT_FALSE(invoke_invalid.IsValid()); // No entry for that index. |
| EXPECT_TRUE(invoke1.IsValid()); |
| EXPECT_TRUE(invoke2.IsValid()); |
| EXPECT_TRUE(invoke3.IsValid()); |
| EXPECT_EQ(invoke1.GetInvokeType(), kSuper); |
| EXPECT_EQ(invoke1.GetMethodIndex(method_info), 1u); |
| EXPECT_EQ(invoke1.GetNativePcOffset(kRuntimeISA), 4u * kPcAlign); |
| EXPECT_EQ(invoke2.GetInvokeType(), kStatic); |
| EXPECT_EQ(invoke2.GetMethodIndex(method_info), 3u); |
| EXPECT_EQ(invoke2.GetNativePcOffset(kRuntimeISA), 8u * kPcAlign); |
| EXPECT_EQ(invoke3.GetInvokeType(), kDirect); |
| EXPECT_EQ(invoke3.GetMethodIndex(method_info), 65535u); |
| EXPECT_EQ(invoke3.GetNativePcOffset(kRuntimeISA), 16u * kPcAlign); |
| } |
| |
| } // namespace art |
