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134 lines
4.4 KiB
134 lines
4.4 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <gtest/gtest.h>
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#include <unwindstack/DwarfError.h>
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#include "DwarfEhFrame.h"
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#include "DwarfEncoding.h"
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#include "LogFake.h"
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#include "MemoryFake.h"
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namespace unwindstack {
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template <typename TypeParam>
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class DwarfEhFrameTest : public ::testing::Test {
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protected:
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void SetUp() override {
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memory_.Clear();
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eh_frame_ = new DwarfEhFrame<TypeParam>(&memory_);
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ResetLogs();
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}
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void TearDown() override { delete eh_frame_; }
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MemoryFake memory_;
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DwarfEhFrame<TypeParam>* eh_frame_ = nullptr;
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};
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TYPED_TEST_SUITE_P(DwarfEhFrameTest);
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// NOTE: All test class variables need to be referenced as this->.
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// Only verify different cie/fde format. All other DwarfSection corner
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// cases are tested in DwarfDebugFrameTest.cpp.
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TYPED_TEST_P(DwarfEhFrameTest, GetFdeCieFromOffset32) {
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// CIE 32 information.
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this->memory_.SetData32(0x5000, 0xfc);
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// Indicates this is a cie for eh_frame.
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this->memory_.SetData32(0x5004, 0);
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this->memory_.SetMemory(0x5008, std::vector<uint8_t>{1, '\0', 16, 32, 1});
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// FDE 32 information.
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this->memory_.SetData32(0x5100, 0xfc);
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this->memory_.SetData32(0x5104, 0x104);
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this->memory_.SetData32(0x5108, 0x1500);
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this->memory_.SetData32(0x510c, 0x200);
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const DwarfFde* fde = this->eh_frame_->GetFdeFromOffset(0x5100);
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ASSERT_TRUE(fde != nullptr);
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EXPECT_EQ(0x5000U, fde->cie_offset);
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EXPECT_EQ(0x5110U, fde->cfa_instructions_offset);
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EXPECT_EQ(0x5200U, fde->cfa_instructions_end);
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EXPECT_EQ(0x6608U, fde->pc_start);
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EXPECT_EQ(0x6808U, fde->pc_end);
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EXPECT_EQ(0U, fde->lsda_address);
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const DwarfCie* cie = fde->cie;
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ASSERT_TRUE(cie != nullptr);
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EXPECT_EQ(1U, cie->version);
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EXPECT_EQ(DW_EH_PE_sdata4, cie->fde_address_encoding);
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EXPECT_EQ(DW_EH_PE_omit, cie->lsda_encoding);
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EXPECT_EQ(0U, cie->segment_size);
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EXPECT_EQ('\0', cie->augmentation_string[0]);
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EXPECT_EQ(0U, cie->personality_handler);
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EXPECT_EQ(0x500dU, cie->cfa_instructions_offset);
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EXPECT_EQ(0x5100U, cie->cfa_instructions_end);
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EXPECT_EQ(16U, cie->code_alignment_factor);
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EXPECT_EQ(32U, cie->data_alignment_factor);
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EXPECT_EQ(1U, cie->return_address_register);
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}
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TYPED_TEST_P(DwarfEhFrameTest, GetFdeCieFromOffset64) {
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// CIE 64 information.
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this->memory_.SetData32(0x5000, 0xffffffff);
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this->memory_.SetData64(0x5004, 0xfc);
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// Indicates this is a cie for eh_frame.
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this->memory_.SetData64(0x500c, 0);
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this->memory_.SetMemory(0x5014, std::vector<uint8_t>{1, '\0', 16, 32, 1});
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// FDE 64 information.
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this->memory_.SetData32(0x5100, 0xffffffff);
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this->memory_.SetData64(0x5104, 0xfc);
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this->memory_.SetData64(0x510c, 0x10c);
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this->memory_.SetData64(0x5114, 0x1500);
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this->memory_.SetData64(0x511c, 0x200);
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const DwarfFde* fde = this->eh_frame_->GetFdeFromOffset(0x5100);
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ASSERT_TRUE(fde != nullptr);
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EXPECT_EQ(0x5000U, fde->cie_offset);
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EXPECT_EQ(0x5124U, fde->cfa_instructions_offset);
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EXPECT_EQ(0x5208U, fde->cfa_instructions_end);
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EXPECT_EQ(0x6618U, fde->pc_start);
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EXPECT_EQ(0x6818U, fde->pc_end);
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EXPECT_EQ(0U, fde->lsda_address);
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const DwarfCie* cie = fde->cie;
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ASSERT_TRUE(cie != nullptr);
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EXPECT_EQ(1U, cie->version);
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EXPECT_EQ(DW_EH_PE_sdata8, cie->fde_address_encoding);
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EXPECT_EQ(DW_EH_PE_omit, cie->lsda_encoding);
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EXPECT_EQ(0U, cie->segment_size);
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EXPECT_EQ('\0', cie->augmentation_string[0]);
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EXPECT_EQ(0U, cie->personality_handler);
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EXPECT_EQ(0x5019U, cie->cfa_instructions_offset);
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EXPECT_EQ(0x5108U, cie->cfa_instructions_end);
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EXPECT_EQ(16U, cie->code_alignment_factor);
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EXPECT_EQ(32U, cie->data_alignment_factor);
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EXPECT_EQ(1U, cie->return_address_register);
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}
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REGISTER_TYPED_TEST_SUITE_P(DwarfEhFrameTest, GetFdeCieFromOffset32, GetFdeCieFromOffset64);
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typedef ::testing::Types<uint32_t, uint64_t> DwarfEhFrameTestTypes;
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INSTANTIATE_TYPED_TEST_SUITE_P(Libunwindstack, DwarfEhFrameTest, DwarfEhFrameTestTypes);
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} // namespace unwindstack
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