libunwindstack/tests/DwarfSectionImplTest.cpp - third_party/android/platform/system/core - Git at Google

 /*
  * Copyright (C) 2016 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 <stdint.h>

 #include <gtest/gtest.h>

 #include <unwindstack/DwarfError.h>
 #include <unwindstack/DwarfSection.h>

 #include "DwarfEncoding.h"

 #include "LogFake.h"
 #include "MemoryFake.h"
 #include "RegsFake.h"

 namespace unwindstack {

 template <typename TypeParam>
 class TestDwarfSectionImpl : public DwarfSectionImpl<TypeParam> {
  public:
   TestDwarfSectionImpl(Memory* memory) : DwarfSectionImpl<TypeParam>(memory) {}
   virtual ~TestDwarfSectionImpl() = default;

   bool Init(uint64_t, uint64_t, uint64_t) override { return false; }

   void GetFdes(std::vector<const DwarfFde*>*) override {}

   const DwarfFde* GetFdeFromPc(uint64_t) override { return nullptr; }

   uint64_t GetCieOffsetFromFde32(uint32_t) { return 0; }

   uint64_t GetCieOffsetFromFde64(uint64_t) { return 0; }

   uint64_t AdjustPcFromFde(uint64_t) override { return 0; }

   void TestSetCachedCieLocRegs(uint64_t offset, const dwarf_loc_regs_t& loc_regs) {
     this->cie_loc_regs_[offset] = loc_regs;
   }
   void TestClearCachedCieLocRegs() { this->cie_loc_regs_.clear(); }
   void TestClearError() { this->last_error_.code = DWARF_ERROR_NONE; }
 };

 template <typename TypeParam>
 class DwarfSectionImplTest : public ::testing::Test {
  protected:
   void SetUp() override {
     memory_.Clear();
     section_ = new TestDwarfSectionImpl<TypeParam>(&memory_);
     ResetLogs();
   }

   void TearDown() override { delete section_; }

   MemoryFake memory_;
   TestDwarfSectionImpl<TypeParam>* section_ = nullptr;
 };
 TYPED_TEST_CASE_P(DwarfSectionImplTest);

 // NOTE: All test class variables need to be referenced as this->.

 TYPED_TEST_P(DwarfSectionImplTest, GetCieFromOffset_fail_should_not_cache) {
   ASSERT_TRUE(this->section_->GetCieFromOffset(0x4000) == nullptr);
   EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
   EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());

   this->section_->TestClearError();
   ASSERT_TRUE(this->section_->GetCieFromOffset(0x4000) == nullptr);
   EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
   EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());
 }

 TYPED_TEST_P(DwarfSectionImplTest, GetFdeFromOffset_fail_should_not_cache) {
   ASSERT_TRUE(this->section_->GetFdeFromOffset(0x4000) == nullptr);
   EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
   EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());

   this->section_->TestClearError();
   ASSERT_TRUE(this->section_->GetFdeFromOffset(0x4000) == nullptr);
   EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
   EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr_eval_fail) {
   DwarfCie cie{.version = 3, .return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[9] = 0x3000;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x2, 0x5002}};
   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
   EXPECT_EQ(0x5000U, this->section_->LastErrorAddress());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr_no_stack) {
   DwarfCie cie{.version = 3, .return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[9] = 0x3000;
   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x96, 0x96, 0x96});
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x2, 0x5002}};
   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_STATE, this->section_->LastErrorCode());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr) {
   DwarfCie cie{.version = 3, .return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[9] = 0x3000;
   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
   TypeParam cfa_value = 0x12345;
   this->memory_.SetMemory(0x80000000, &cfa_value, sizeof(cfa_value));
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_EXPRESSION, {0x4, 0x5004}};
   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_val_expr) {
   DwarfCie cie{.version = 3, .return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[9] = 0x3000;
   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x4, 0x5004}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   ASSERT_FALSE(finished);
   EXPECT_EQ(0x80000000U, regs.sp());
   EXPECT_EQ(0x20U, regs.pc());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr_is_register) {
   DwarfCie cie{.version = 3, .return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[9] = 0x3000;
   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x50, 0x96, 0x96});
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x2, 0x5002}};
   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_NOT_IMPLEMENTED, this->section_->LastErrorCode());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_bad_regs) {
   DwarfCie cie{.return_address_register = 60};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_no_cfa) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_CFA_NOT_DEFINED, this->section_->LastErrorCode());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_bad) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {20, 0}};
   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());

   this->section_->TestClearError();
   loc_regs.erase(CFA_REG);
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_INVALID, {0, 0}};
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());

   this->section_->TestClearError();
   loc_regs.erase(CFA_REG);
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_OFFSET, {0, 0}};
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());

   this->section_->TestClearError();
   loc_regs.erase(CFA_REG);
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_OFFSET, {0, 0}};
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_register_prev) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[9] = 0x3000;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {9, 0}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_FALSE(finished);
   EXPECT_EQ(0x20U, regs.pc());
   EXPECT_EQ(0x3000U, regs.sp());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_register_from_value) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[6] = 0x4000;
   regs[9] = 0x3000;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {6, 0}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_FALSE(finished);
   EXPECT_EQ(0x20U, regs.pc());
   EXPECT_EQ(0x4000U, regs.sp());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_double_indirection) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[1] = 0x100;
   regs[3] = 0x300;
   regs[8] = 0x10;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[1] = DwarfLocation{DWARF_LOCATION_REGISTER, {3, 1}};
   loc_regs[9] = DwarfLocation{DWARF_LOCATION_REGISTER, {1, 2}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(0x301U, regs[1]);
   EXPECT_EQ(0x300U, regs[3]);
   EXPECT_EQ(0x10U, regs[8]);
   EXPECT_EQ(0x102U, regs[9]);
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_register_reference_chain) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[0] = 0x10;
   regs[1] = 0x20;
   regs[2] = 0x30;
   regs[3] = 0x40;
   regs[4] = 0x50;
   regs[5] = 0x60;
   regs[8] = 0x20;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[1] = DwarfLocation{DWARF_LOCATION_REGISTER, {0, 1}};
   loc_regs[2] = DwarfLocation{DWARF_LOCATION_REGISTER, {1, 2}};
   loc_regs[3] = DwarfLocation{DWARF_LOCATION_REGISTER, {2, 3}};
   loc_regs[4] = DwarfLocation{DWARF_LOCATION_REGISTER, {3, 4}};
   loc_regs[5] = DwarfLocation{DWARF_LOCATION_REGISTER, {4, 5}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(0x10U, regs[0]);
   EXPECT_EQ(0x11U, regs[1]);
   EXPECT_EQ(0x22U, regs[2]);
   EXPECT_EQ(0x33U, regs[3]);
   EXPECT_EQ(0x44U, regs[4]);
   EXPECT_EQ(0x55U, regs[5]);
   EXPECT_EQ(0x20U, regs[8]);
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_dex_pc) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[0] = 0x10;
   regs[8] = 0x20;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[1] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x8, 0x5008}};
   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 'D', 'E', 'X', '1', 0x13, 0x08, 0x11});
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(0x10U, regs[0]);
   EXPECT_EQ(0x20U, regs[8]);
   EXPECT_EQ(0x11U, regs.dex_pc());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_invalid_register) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[8] = 0x10;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[1] = DwarfLocation{DWARF_LOCATION_REGISTER, {10, 0}};
   bool finished;
   ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_different_reg_locations) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   if (sizeof(TypeParam) == sizeof(uint64_t)) {
     this->memory_.SetData64(0x2150, 0x12345678abcdef00ULL);
   } else {
     this->memory_.SetData32(0x2150, 0x12345678);
   }

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[3] = 0x234;
   regs[5] = 0x10;
   regs[8] = 0x2100;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[1] = DwarfLocation{DWARF_LOCATION_VAL_OFFSET, {0x100, 0}};
   loc_regs[2] = DwarfLocation{DWARF_LOCATION_OFFSET, {0x50, 0}};
   loc_regs[3] = DwarfLocation{DWARF_LOCATION_UNDEFINED, {0, 0}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_FALSE(finished);
   EXPECT_EQ(0x10U, regs.pc());
   EXPECT_EQ(0x2100U, regs.sp());
   EXPECT_EQ(0x2200U, regs[1]);
   EXPECT_EQ(0x234U, regs[3]);
   if (sizeof(TypeParam) == sizeof(uint64_t)) {
     EXPECT_EQ(0x12345678abcdef00ULL, regs[2]);
   } else {
     EXPECT_EQ(0x12345678U, regs[2]);
   }
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_return_address_undefined) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[8] = 0x10;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[5] = DwarfLocation{DWARF_LOCATION_UNDEFINED, {0, 0}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_TRUE(finished);
   EXPECT_EQ(0U, regs.pc());
   EXPECT_EQ(0x10U, regs.sp());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_pc_zero) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0;
   regs[8] = 0x10;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_TRUE(finished);
   EXPECT_EQ(0U, regs.pc());
   EXPECT_EQ(0x10U, regs.sp());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_return_address) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[8] = 0x10;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_FALSE(finished);
   EXPECT_EQ(0x20U, regs.pc());
   EXPECT_EQ(0x10U, regs.sp());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_ignore_large_reg_loc) {
   DwarfCie cie{.return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[5] = 0x20;
   regs[8] = 0x10;
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   // This should not result in any errors.
   loc_regs[20] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_FALSE(finished);
   EXPECT_EQ(0x20U, regs.pc());
   EXPECT_EQ(0x10U, regs.sp());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_reg_expr) {
   DwarfCie cie{.version = 3, .return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[8] = 0x3000;
   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
   TypeParam cfa_value = 0x12345;
   this->memory_.SetMemory(0x80000000, &cfa_value, sizeof(cfa_value));
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[5] = DwarfLocation{DWARF_LOCATION_EXPRESSION, {0x4, 0x5004}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_FALSE(finished);
   EXPECT_EQ(0x3000U, regs.sp());
   EXPECT_EQ(0x12345U, regs.pc());
 }

 TYPED_TEST_P(DwarfSectionImplTest, Eval_reg_val_expr) {
   DwarfCie cie{.version = 3, .return_address_register = 5};
   RegsImplFake<TypeParam> regs(10);
   dwarf_loc_regs_t loc_regs;

   regs.set_pc(0x100);
   regs.set_sp(0x2000);
   regs[8] = 0x3000;
   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
   loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
   loc_regs[5] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x4, 0x5004}};
   bool finished;
   ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
   EXPECT_FALSE(finished);
   EXPECT_EQ(0x3000U, regs.sp());
   EXPECT_EQ(0x80000000U, regs.pc());
 }

 TYPED_TEST_P(DwarfSectionImplTest, GetCfaLocationInfo_cie_not_cached) {
   DwarfCie cie{};
   cie.cfa_instructions_offset = 0x3000;
   cie.cfa_instructions_end = 0x3002;
   DwarfFde fde{};
   fde.cie = &cie;
   fde.cie_offset = 0x8000;
   fde.cfa_instructions_offset = 0x6000;
   fde.cfa_instructions_end = 0x6002;

   this->memory_.SetMemory(0x3000, std::vector<uint8_t>{0x09, 0x02, 0x01});
   this->memory_.SetMemory(0x6000, std::vector<uint8_t>{0x09, 0x04, 0x03});

   dwarf_loc_regs_t loc_regs;
   ASSERT_TRUE(this->section_->GetCfaLocationInfo(0x100, &fde, &loc_regs));
   ASSERT_EQ(2U, loc_regs.size());

   auto entry = loc_regs.find(2);
   ASSERT_NE(entry, loc_regs.end());
   ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
   ASSERT_EQ(1U, entry->second.values[0]);

   entry = loc_regs.find(4);
   ASSERT_NE(entry, loc_regs.end());
   ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
   ASSERT_EQ(3U, entry->second.values[0]);
 }

 TYPED_TEST_P(DwarfSectionImplTest, GetCfaLocationInfo_cie_cached) {
   DwarfCie cie{};
   cie.cfa_instructions_offset = 0x3000;
   cie.cfa_instructions_end = 0x3002;
   DwarfFde fde{};
   fde.cie = &cie;
   fde.cie_offset = 0x8000;
   fde.cfa_instructions_offset = 0x6000;
   fde.cfa_instructions_end = 0x6002;

   dwarf_loc_regs_t cie_loc_regs;
   cie_loc_regs[6] = DwarfLocation{DWARF_LOCATION_REGISTER, {4, 0}};
   this->section_->TestSetCachedCieLocRegs(0x8000, cie_loc_regs);
   this->memory_.SetMemory(0x6000, std::vector<uint8_t>{0x09, 0x04, 0x03});

   dwarf_loc_regs_t loc_regs;
   ASSERT_TRUE(this->section_->GetCfaLocationInfo(0x100, &fde, &loc_regs));
   ASSERT_EQ(2U, loc_regs.size());

   auto entry = loc_regs.find(6);
   ASSERT_NE(entry, loc_regs.end());
   ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
   ASSERT_EQ(4U, entry->second.values[0]);

   entry = loc_regs.find(4);
   ASSERT_NE(entry, loc_regs.end());
   ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
   ASSERT_EQ(3U, entry->second.values[0]);
 }

 TYPED_TEST_P(DwarfSectionImplTest, Log) {
   DwarfCie cie{};
   cie.cfa_instructions_offset = 0x5000;
   cie.cfa_instructions_end = 0x5001;
   DwarfFde fde{};
   fde.cie = &cie;
   fde.cfa_instructions_offset = 0x6000;
   fde.cfa_instructions_end = 0x6001;

   this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x00});
   this->memory_.SetMemory(0x6000, std::vector<uint8_t>{0xc2});
   ASSERT_TRUE(this->section_->Log(2, 0x1000, &fde));

   ASSERT_EQ(
       "4 unwind     DW_CFA_nop\n"
       "4 unwind     Raw Data: 0x00\n"
       "4 unwind     DW_CFA_restore register(2)\n"
       "4 unwind     Raw Data: 0xc2\n",
       GetFakeLogPrint());
   ASSERT_EQ("", GetFakeLogBuf());
 }

 REGISTER_TYPED_TEST_CASE_P(DwarfSectionImplTest, GetCieFromOffset_fail_should_not_cache,
                            GetFdeFromOffset_fail_should_not_cache, Eval_cfa_expr_eval_fail,
                            Eval_cfa_expr_no_stack, Eval_cfa_expr_is_register, Eval_cfa_expr,
                            Eval_cfa_val_expr, Eval_bad_regs, Eval_no_cfa, Eval_cfa_bad,
                            Eval_cfa_register_prev, Eval_cfa_register_from_value,
                            Eval_double_indirection, Eval_register_reference_chain, Eval_dex_pc,
                            Eval_invalid_register, Eval_different_reg_locations,
                            Eval_return_address_undefined, Eval_pc_zero, Eval_return_address,
                            Eval_ignore_large_reg_loc, Eval_reg_expr, Eval_reg_val_expr,
                            GetCfaLocationInfo_cie_not_cached, GetCfaLocationInfo_cie_cached, Log);

 typedef ::testing::Types<uint32_t, uint64_t> DwarfSectionImplTestTypes;
 INSTANTIATE_TYPED_TEST_CASE_P(, DwarfSectionImplTest, DwarfSectionImplTestTypes);

 }  // namespace unwindstack
	/*
	* Copyright (C) 2016 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 <stdint.h>

	#include <gtest/gtest.h>

	#include <unwindstack/DwarfError.h>
	#include <unwindstack/DwarfSection.h>

	#include "DwarfEncoding.h"

	#include "LogFake.h"
	#include "MemoryFake.h"
	#include "RegsFake.h"

	namespace unwindstack {

	template <typename TypeParam>
	class TestDwarfSectionImpl : public DwarfSectionImpl<TypeParam> {
	public:
	TestDwarfSectionImpl(Memory* memory) : DwarfSectionImpl<TypeParam>(memory) {}
	virtual ~TestDwarfSectionImpl() = default;

	bool Init(uint64_t, uint64_t, uint64_t) override { return false; }

	void GetFdes(std::vector<const DwarfFde>) override {}

	const DwarfFde* GetFdeFromPc(uint64_t) override { return nullptr; }

	uint64_t GetCieOffsetFromFde32(uint32_t) { return 0; }

	uint64_t GetCieOffsetFromFde64(uint64_t) { return 0; }

	uint64_t AdjustPcFromFde(uint64_t) override { return 0; }

	void TestSetCachedCieLocRegs(uint64_t offset, const dwarf_loc_regs_t& loc_regs) {
	this->cie_loc_regs_[offset] = loc_regs;
	}
	void TestClearCachedCieLocRegs() { this->cie_loc_regs_.clear(); }
	void TestClearError() { this->last_error_.code = DWARF_ERROR_NONE; }
	};

	template <typename TypeParam>
	class DwarfSectionImplTest : public ::testing::Test {
	protected:
	void SetUp() override {
	memory_.Clear();
	section_ = new TestDwarfSectionImpl<TypeParam>(&memory_);
	ResetLogs();
	}

	void TearDown() override { delete section_; }

	MemoryFake memory_;
	TestDwarfSectionImpl<TypeParam>* section_ = nullptr;
	};
	TYPED_TEST_CASE_P(DwarfSectionImplTest);

	// NOTE: All test class variables need to be referenced as this->.

	TYPED_TEST_P(DwarfSectionImplTest, GetCieFromOffset_fail_should_not_cache) {
	ASSERT_TRUE(this->section_->GetCieFromOffset(0x4000) == nullptr);
	EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
	EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());

	this->section_->TestClearError();
	ASSERT_TRUE(this->section_->GetCieFromOffset(0x4000) == nullptr);
	EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
	EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());
	}

	TYPED_TEST_P(DwarfSectionImplTest, GetFdeFromOffset_fail_should_not_cache) {
	ASSERT_TRUE(this->section_->GetFdeFromOffset(0x4000) == nullptr);
	EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
	EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());

	this->section_->TestClearError();
	ASSERT_TRUE(this->section_->GetFdeFromOffset(0x4000) == nullptr);
	EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
	EXPECT_EQ(0x4000U, this->section_->LastErrorAddress());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr_eval_fail) {
	DwarfCie cie{.version = 3, .return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[9] = 0x3000;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x2, 0x5002}};
	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_MEMORY_INVALID, this->section_->LastErrorCode());
	EXPECT_EQ(0x5000U, this->section_->LastErrorAddress());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr_no_stack) {
	DwarfCie cie{.version = 3, .return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[9] = 0x3000;
	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x96, 0x96, 0x96});
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x2, 0x5002}};
	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_STATE, this->section_->LastErrorCode());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr) {
	DwarfCie cie{.version = 3, .return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[9] = 0x3000;
	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
	TypeParam cfa_value = 0x12345;
	this->memory_.SetMemory(0x80000000, &cfa_value, sizeof(cfa_value));
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_EXPRESSION, {0x4, 0x5004}};
	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_val_expr) {
	DwarfCie cie{.version = 3, .return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[9] = 0x3000;
	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x4, 0x5004}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	ASSERT_FALSE(finished);
	EXPECT_EQ(0x80000000U, regs.sp());
	EXPECT_EQ(0x20U, regs.pc());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_expr_is_register) {
	DwarfCie cie{.version = 3, .return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[9] = 0x3000;
	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x50, 0x96, 0x96});
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x2, 0x5002}};
	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_NOT_IMPLEMENTED, this->section_->LastErrorCode());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_bad_regs) {
	DwarfCie cie{.return_address_register = 60};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_no_cfa) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_CFA_NOT_DEFINED, this->section_->LastErrorCode());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_bad) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {20, 0}};
	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());

	this->section_->TestClearError();
	loc_regs.erase(CFA_REG);
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_INVALID, {0, 0}};
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());

	this->section_->TestClearError();
	loc_regs.erase(CFA_REG);
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_OFFSET, {0, 0}};
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());

	this->section_->TestClearError();
	loc_regs.erase(CFA_REG);
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_VAL_OFFSET, {0, 0}};
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_register_prev) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[9] = 0x3000;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {9, 0}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_FALSE(finished);
	EXPECT_EQ(0x20U, regs.pc());
	EXPECT_EQ(0x3000U, regs.sp());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_cfa_register_from_value) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[6] = 0x4000;
	regs[9] = 0x3000;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {6, 0}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_FALSE(finished);
	EXPECT_EQ(0x20U, regs.pc());
	EXPECT_EQ(0x4000U, regs.sp());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_double_indirection) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[1] = 0x100;
	regs[3] = 0x300;
	regs[8] = 0x10;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[1] = DwarfLocation{DWARF_LOCATION_REGISTER, {3, 1}};
	loc_regs[9] = DwarfLocation{DWARF_LOCATION_REGISTER, {1, 2}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(0x301U, regs[1]);
	EXPECT_EQ(0x300U, regs[3]);
	EXPECT_EQ(0x10U, regs[8]);
	EXPECT_EQ(0x102U, regs[9]);
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_register_reference_chain) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[0] = 0x10;
	regs[1] = 0x20;
	regs[2] = 0x30;
	regs[3] = 0x40;
	regs[4] = 0x50;
	regs[5] = 0x60;
	regs[8] = 0x20;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[1] = DwarfLocation{DWARF_LOCATION_REGISTER, {0, 1}};
	loc_regs[2] = DwarfLocation{DWARF_LOCATION_REGISTER, {1, 2}};
	loc_regs[3] = DwarfLocation{DWARF_LOCATION_REGISTER, {2, 3}};
	loc_regs[4] = DwarfLocation{DWARF_LOCATION_REGISTER, {3, 4}};
	loc_regs[5] = DwarfLocation{DWARF_LOCATION_REGISTER, {4, 5}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(0x10U, regs[0]);
	EXPECT_EQ(0x11U, regs[1]);
	EXPECT_EQ(0x22U, regs[2]);
	EXPECT_EQ(0x33U, regs[3]);
	EXPECT_EQ(0x44U, regs[4]);
	EXPECT_EQ(0x55U, regs[5]);
	EXPECT_EQ(0x20U, regs[8]);
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_dex_pc) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[0] = 0x10;
	regs[8] = 0x20;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[1] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x8, 0x5008}};
	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 'D', 'E', 'X', '1', 0x13, 0x08, 0x11});
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(0x10U, regs[0]);
	EXPECT_EQ(0x20U, regs[8]);
	EXPECT_EQ(0x11U, regs.dex_pc());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_invalid_register) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[8] = 0x10;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[1] = DwarfLocation{DWARF_LOCATION_REGISTER, {10, 0}};
	bool finished;
	ASSERT_FALSE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->section_->LastErrorCode());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_different_reg_locations) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	if (sizeof(TypeParam) == sizeof(uint64_t)) {
	this->memory_.SetData64(0x2150, 0x12345678abcdef00ULL);
	} else {
	this->memory_.SetData32(0x2150, 0x12345678);
	}

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[3] = 0x234;
	regs[5] = 0x10;
	regs[8] = 0x2100;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[1] = DwarfLocation{DWARF_LOCATION_VAL_OFFSET, {0x100, 0}};
	loc_regs[2] = DwarfLocation{DWARF_LOCATION_OFFSET, {0x50, 0}};
	loc_regs[3] = DwarfLocation{DWARF_LOCATION_UNDEFINED, {0, 0}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_FALSE(finished);
	EXPECT_EQ(0x10U, regs.pc());
	EXPECT_EQ(0x2100U, regs.sp());
	EXPECT_EQ(0x2200U, regs[1]);
	EXPECT_EQ(0x234U, regs[3]);
	if (sizeof(TypeParam) == sizeof(uint64_t)) {
	EXPECT_EQ(0x12345678abcdef00ULL, regs[2]);
	} else {
	EXPECT_EQ(0x12345678U, regs[2]);
	}
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_return_address_undefined) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[8] = 0x10;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[5] = DwarfLocation{DWARF_LOCATION_UNDEFINED, {0, 0}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_TRUE(finished);
	EXPECT_EQ(0U, regs.pc());
	EXPECT_EQ(0x10U, regs.sp());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_pc_zero) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0;
	regs[8] = 0x10;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_TRUE(finished);
	EXPECT_EQ(0U, regs.pc());
	EXPECT_EQ(0x10U, regs.sp());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_return_address) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[8] = 0x10;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_FALSE(finished);
	EXPECT_EQ(0x20U, regs.pc());
	EXPECT_EQ(0x10U, regs.sp());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_ignore_large_reg_loc) {
	DwarfCie cie{.return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[5] = 0x20;
	regs[8] = 0x10;
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	// This should not result in any errors.
	loc_regs[20] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_FALSE(finished);
	EXPECT_EQ(0x20U, regs.pc());
	EXPECT_EQ(0x10U, regs.sp());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_reg_expr) {
	DwarfCie cie{.version = 3, .return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[8] = 0x3000;
	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
	TypeParam cfa_value = 0x12345;
	this->memory_.SetMemory(0x80000000, &cfa_value, sizeof(cfa_value));
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[5] = DwarfLocation{DWARF_LOCATION_EXPRESSION, {0x4, 0x5004}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_FALSE(finished);
	EXPECT_EQ(0x3000U, regs.sp());
	EXPECT_EQ(0x12345U, regs.pc());
	}

	TYPED_TEST_P(DwarfSectionImplTest, Eval_reg_val_expr) {
	DwarfCie cie{.version = 3, .return_address_register = 5};
	RegsImplFake<TypeParam> regs(10);
	dwarf_loc_regs_t loc_regs;

	regs.set_pc(0x100);
	regs.set_sp(0x2000);
	regs[8] = 0x3000;
	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x0c, 0x00, 0x00, 0x00, 0x80});
	loc_regs[CFA_REG] = DwarfLocation{DWARF_LOCATION_REGISTER, {8, 0}};
	loc_regs[5] = DwarfLocation{DWARF_LOCATION_VAL_EXPRESSION, {0x4, 0x5004}};
	bool finished;
	ASSERT_TRUE(this->section_->Eval(&cie, &this->memory_, loc_regs, &regs, &finished));
	EXPECT_FALSE(finished);
	EXPECT_EQ(0x3000U, regs.sp());
	EXPECT_EQ(0x80000000U, regs.pc());
	}

	TYPED_TEST_P(DwarfSectionImplTest, GetCfaLocationInfo_cie_not_cached) {
	DwarfCie cie{};
	cie.cfa_instructions_offset = 0x3000;
	cie.cfa_instructions_end = 0x3002;
	DwarfFde fde{};
	fde.cie = &cie;
	fde.cie_offset = 0x8000;
	fde.cfa_instructions_offset = 0x6000;
	fde.cfa_instructions_end = 0x6002;

	this->memory_.SetMemory(0x3000, std::vector<uint8_t>{0x09, 0x02, 0x01});
	this->memory_.SetMemory(0x6000, std::vector<uint8_t>{0x09, 0x04, 0x03});

	dwarf_loc_regs_t loc_regs;
	ASSERT_TRUE(this->section_->GetCfaLocationInfo(0x100, &fde, &loc_regs));
	ASSERT_EQ(2U, loc_regs.size());

	auto entry = loc_regs.find(2);
	ASSERT_NE(entry, loc_regs.end());
	ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
	ASSERT_EQ(1U, entry->second.values[0]);

	entry = loc_regs.find(4);
	ASSERT_NE(entry, loc_regs.end());
	ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
	ASSERT_EQ(3U, entry->second.values[0]);
	}

	TYPED_TEST_P(DwarfSectionImplTest, GetCfaLocationInfo_cie_cached) {
	DwarfCie cie{};
	cie.cfa_instructions_offset = 0x3000;
	cie.cfa_instructions_end = 0x3002;
	DwarfFde fde{};
	fde.cie = &cie;
	fde.cie_offset = 0x8000;
	fde.cfa_instructions_offset = 0x6000;
	fde.cfa_instructions_end = 0x6002;

	dwarf_loc_regs_t cie_loc_regs;
	cie_loc_regs[6] = DwarfLocation{DWARF_LOCATION_REGISTER, {4, 0}};
	this->section_->TestSetCachedCieLocRegs(0x8000, cie_loc_regs);
	this->memory_.SetMemory(0x6000, std::vector<uint8_t>{0x09, 0x04, 0x03});

	dwarf_loc_regs_t loc_regs;
	ASSERT_TRUE(this->section_->GetCfaLocationInfo(0x100, &fde, &loc_regs));
	ASSERT_EQ(2U, loc_regs.size());

	auto entry = loc_regs.find(6);
	ASSERT_NE(entry, loc_regs.end());
	ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
	ASSERT_EQ(4U, entry->second.values[0]);

	entry = loc_regs.find(4);
	ASSERT_NE(entry, loc_regs.end());
	ASSERT_EQ(DWARF_LOCATION_REGISTER, entry->second.type);
	ASSERT_EQ(3U, entry->second.values[0]);
	}

	TYPED_TEST_P(DwarfSectionImplTest, Log) {
	DwarfCie cie{};
	cie.cfa_instructions_offset = 0x5000;
	cie.cfa_instructions_end = 0x5001;
	DwarfFde fde{};
	fde.cie = &cie;
	fde.cfa_instructions_offset = 0x6000;
	fde.cfa_instructions_end = 0x6001;

	this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x00});
	this->memory_.SetMemory(0x6000, std::vector<uint8_t>{0xc2});
	ASSERT_TRUE(this->section_->Log(2, 0x1000, &fde));

	ASSERT_EQ(
	"4 unwind DW_CFA_nop\n"
	"4 unwind Raw Data: 0x00\n"
	"4 unwind DW_CFA_restore register(2)\n"
	"4 unwind Raw Data: 0xc2\n",
	GetFakeLogPrint());
	ASSERT_EQ("", GetFakeLogBuf());
	}

	REGISTER_TYPED_TEST_CASE_P(DwarfSectionImplTest, GetCieFromOffset_fail_should_not_cache,
	GetFdeFromOffset_fail_should_not_cache, Eval_cfa_expr_eval_fail,
	Eval_cfa_expr_no_stack, Eval_cfa_expr_is_register, Eval_cfa_expr,
	Eval_cfa_val_expr, Eval_bad_regs, Eval_no_cfa, Eval_cfa_bad,
	Eval_cfa_register_prev, Eval_cfa_register_from_value,
	Eval_double_indirection, Eval_register_reference_chain, Eval_dex_pc,
	Eval_invalid_register, Eval_different_reg_locations,
	Eval_return_address_undefined, Eval_pc_zero, Eval_return_address,
	Eval_ignore_large_reg_loc, Eval_reg_expr, Eval_reg_val_expr,
	GetCfaLocationInfo_cie_not_cached, GetCfaLocationInfo_cie_cached, Log);

	typedef ::testing::Types<uint32_t, uint64_t> DwarfSectionImplTestTypes;
	INSTANTIATE_TYPED_TEST_CASE_P(, DwarfSectionImplTest, DwarfSectionImplTestTypes);

	} // namespace unwindstack