Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <stdint.h> |
| 18 | |
| 19 | #include <gmock/gmock.h> |
| 20 | #include <gtest/gtest.h> |
| 21 | |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 22 | #include <unwindstack/DwarfError.h> |
| 23 | |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 24 | #include "DwarfEhFrameWithHdr.h" |
| 25 | #include "DwarfEncoding.h" |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 26 | |
| 27 | #include "LogFake.h" |
| 28 | #include "MemoryFake.h" |
| 29 | |
| 30 | namespace unwindstack { |
| 31 | |
| 32 | template <typename TypeParam> |
| 33 | class MockDwarfEhFrameWithHdr : public DwarfEhFrameWithHdr<TypeParam> { |
| 34 | public: |
| 35 | MockDwarfEhFrameWithHdr(Memory* memory) : DwarfEhFrameWithHdr<TypeParam>(memory) {} |
| 36 | ~MockDwarfEhFrameWithHdr() = default; |
| 37 | |
| 38 | void TestSetTableEncoding(uint8_t encoding) { this->table_encoding_ = encoding; } |
| 39 | void TestSetEntriesOffset(uint64_t offset) { this->entries_offset_ = offset; } |
| 40 | void TestSetEntriesEnd(uint64_t end) { this->entries_end_ = end; } |
| 41 | void TestSetEntriesDataOffset(uint64_t offset) { this->entries_data_offset_ = offset; } |
| 42 | void TestSetCurEntriesOffset(uint64_t offset) { this->cur_entries_offset_ = offset; } |
| 43 | void TestSetTableEntrySize(size_t size) { this->table_entry_size_ = size; } |
| 44 | |
| 45 | void TestSetFdeCount(uint64_t count) { this->fde_count_ = count; } |
| 46 | void TestSetFdeInfo(uint64_t index, const typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo& info) { |
| 47 | this->fde_info_[index] = info; |
| 48 | } |
| 49 | |
| 50 | uint8_t TestGetVersion() { return this->version_; } |
| 51 | uint8_t TestGetPtrEncoding() { return this->ptr_encoding_; } |
| 52 | uint64_t TestGetPtrOffset() { return this->ptr_offset_; } |
| 53 | uint8_t TestGetTableEncoding() { return this->table_encoding_; } |
| 54 | uint64_t TestGetTableEntrySize() { return this->table_entry_size_; } |
| 55 | uint64_t TestGetFdeCount() { return this->fde_count_; } |
| 56 | uint64_t TestGetEntriesOffset() { return this->entries_offset_; } |
| 57 | uint64_t TestGetEntriesEnd() { return this->entries_end_; } |
| 58 | uint64_t TestGetEntriesDataOffset() { return this->entries_data_offset_; } |
| 59 | uint64_t TestGetCurEntriesOffset() { return this->cur_entries_offset_; } |
| 60 | }; |
| 61 | |
| 62 | template <typename TypeParam> |
| 63 | class DwarfEhFrameWithHdrTest : public ::testing::Test { |
| 64 | protected: |
| 65 | void SetUp() override { |
| 66 | memory_.Clear(); |
| 67 | eh_frame_ = new MockDwarfEhFrameWithHdr<TypeParam>(&memory_); |
| 68 | ResetLogs(); |
| 69 | } |
| 70 | |
| 71 | void TearDown() override { delete eh_frame_; } |
| 72 | |
| 73 | MemoryFake memory_; |
| 74 | MockDwarfEhFrameWithHdr<TypeParam>* eh_frame_ = nullptr; |
| 75 | }; |
| 76 | TYPED_TEST_CASE_P(DwarfEhFrameWithHdrTest); |
| 77 | |
| 78 | // NOTE: All test class variables need to be referenced as this->. |
| 79 | |
| 80 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, Init) { |
| 81 | this->memory_.SetMemory( |
| 82 | 0x1000, std::vector<uint8_t>{0x1, DW_EH_PE_udata2, DW_EH_PE_udata4, DW_EH_PE_sdata4}); |
| 83 | this->memory_.SetData16(0x1004, 0x500); |
| 84 | this->memory_.SetData32(0x1006, 126); |
| 85 | |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 86 | ASSERT_TRUE(this->eh_frame_->Init(0x1000, 0x100, 0)); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 87 | EXPECT_EQ(1U, this->eh_frame_->TestGetVersion()); |
| 88 | EXPECT_EQ(DW_EH_PE_udata2, this->eh_frame_->TestGetPtrEncoding()); |
| 89 | EXPECT_EQ(DW_EH_PE_sdata4, this->eh_frame_->TestGetTableEncoding()); |
| 90 | EXPECT_EQ(4U, this->eh_frame_->TestGetTableEntrySize()); |
| 91 | EXPECT_EQ(126U, this->eh_frame_->TestGetFdeCount()); |
| 92 | EXPECT_EQ(0x500U, this->eh_frame_->TestGetPtrOffset()); |
| 93 | EXPECT_EQ(0x100aU, this->eh_frame_->TestGetEntriesOffset()); |
| 94 | EXPECT_EQ(0x1100U, this->eh_frame_->TestGetEntriesEnd()); |
| 95 | EXPECT_EQ(0x1000U, this->eh_frame_->TestGetEntriesDataOffset()); |
| 96 | EXPECT_EQ(0x100aU, this->eh_frame_->TestGetCurEntriesOffset()); |
| 97 | |
Christopher Ferris | 1a141a0 | 2018-01-24 08:52:47 -0800 | [diff] [blame] | 98 | // Verify a zero fde count fails to init. |
| 99 | this->memory_.SetData32(0x1006, 0); |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 100 | ASSERT_FALSE(this->eh_frame_->Init(0x1000, 0x100, 0)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 101 | ASSERT_EQ(DWARF_ERROR_NO_FDES, this->eh_frame_->LastErrorCode()); |
Christopher Ferris | 1a141a0 | 2018-01-24 08:52:47 -0800 | [diff] [blame] | 102 | |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 103 | // Verify an unexpected version will cause a fail. |
Christopher Ferris | 1a141a0 | 2018-01-24 08:52:47 -0800 | [diff] [blame] | 104 | this->memory_.SetData32(0x1006, 126); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 105 | this->memory_.SetData8(0x1000, 0); |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 106 | ASSERT_FALSE(this->eh_frame_->Init(0x1000, 0x100, 0)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 107 | ASSERT_EQ(DWARF_ERROR_UNSUPPORTED_VERSION, this->eh_frame_->LastErrorCode()); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 108 | this->memory_.SetData8(0x1000, 2); |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 109 | ASSERT_FALSE(this->eh_frame_->Init(0x1000, 0x100, 0)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 110 | ASSERT_EQ(DWARF_ERROR_UNSUPPORTED_VERSION, this->eh_frame_->LastErrorCode()); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 111 | } |
| 112 | |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 113 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, Init_non_zero_load_bias) { |
| 114 | this->memory_.SetMemory(0x1000, std::vector<uint8_t>{0x1, DW_EH_PE_udata2, DW_EH_PE_udata4, |
| 115 | DW_EH_PE_pcrel | DW_EH_PE_sdata4}); |
| 116 | this->memory_.SetData16(0x1004, 0x500); |
| 117 | this->memory_.SetData32(0x1006, 1); |
| 118 | this->memory_.SetData32(0x100a, 0x2500); |
| 119 | this->memory_.SetData32(0x100e, 0x1400); |
| 120 | |
| 121 | // CIE 32 information. |
| 122 | this->memory_.SetData32(0x1300, 0xfc); |
| 123 | this->memory_.SetData32(0x1304, 0); |
| 124 | this->memory_.SetData8(0x1308, 1); |
| 125 | this->memory_.SetData8(0x1309, 'z'); |
| 126 | this->memory_.SetData8(0x130a, 'R'); |
| 127 | this->memory_.SetData8(0x130b, '\0'); |
| 128 | this->memory_.SetData8(0x130c, 0); |
| 129 | this->memory_.SetData8(0x130d, 0); |
| 130 | this->memory_.SetData8(0x130e, 0); |
| 131 | this->memory_.SetData8(0x130f, 0); |
| 132 | this->memory_.SetData8(0x1310, 0x1b); |
| 133 | |
| 134 | // FDE 32 information. |
| 135 | this->memory_.SetData32(0x1400, 0xfc); |
| 136 | this->memory_.SetData32(0x1404, 0x104); |
| 137 | this->memory_.SetData32(0x1408, 0x10f8); |
| 138 | this->memory_.SetData32(0x140c, 0x200); |
| 139 | this->memory_.SetData8(0x1410, 0); |
| 140 | this->memory_.SetData8(0x1411, 0); |
| 141 | |
| 142 | ASSERT_TRUE(this->eh_frame_->Init(0x1000, 0x100, 0x2000)); |
| 143 | EXPECT_EQ(1U, this->eh_frame_->TestGetVersion()); |
| 144 | EXPECT_EQ(DW_EH_PE_udata2, this->eh_frame_->TestGetPtrEncoding()); |
| 145 | EXPECT_EQ(0x1b, this->eh_frame_->TestGetTableEncoding()); |
| 146 | EXPECT_EQ(4U, this->eh_frame_->TestGetTableEntrySize()); |
| 147 | EXPECT_EQ(1U, this->eh_frame_->TestGetFdeCount()); |
| 148 | EXPECT_EQ(0x500U, this->eh_frame_->TestGetPtrOffset()); |
| 149 | EXPECT_EQ(0x100aU, this->eh_frame_->TestGetEntriesOffset()); |
| 150 | EXPECT_EQ(0x1100U, this->eh_frame_->TestGetEntriesEnd()); |
| 151 | EXPECT_EQ(0x1000U, this->eh_frame_->TestGetEntriesDataOffset()); |
| 152 | EXPECT_EQ(0x100aU, this->eh_frame_->TestGetCurEntriesOffset()); |
| 153 | |
| 154 | const DwarfFde* fde = this->eh_frame_->GetFdeFromPc(0x4600); |
| 155 | ASSERT_TRUE(fde != nullptr); |
| 156 | EXPECT_EQ(0x4500U, fde->pc_start); |
| 157 | EXPECT_EQ(0x4700U, fde->pc_end); |
| 158 | } |
| 159 | |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 160 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_expect_cache_fail) { |
| 161 | this->eh_frame_->TestSetTableEntrySize(0x10); |
| 162 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_udata4); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 163 | this->eh_frame_->TestSetEntriesOffset(0x1000); |
| 164 | |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 165 | ASSERT_TRUE(this->eh_frame_->GetFdeInfoFromIndex(0) == nullptr); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 166 | ASSERT_EQ(DWARF_ERROR_MEMORY_INVALID, this->eh_frame_->LastErrorCode()); |
| 167 | EXPECT_EQ(0x1000U, this->eh_frame_->LastErrorAddress()); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 168 | ASSERT_TRUE(this->eh_frame_->GetFdeInfoFromIndex(0) == nullptr); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 169 | ASSERT_EQ(DWARF_ERROR_MEMORY_INVALID, this->eh_frame_->LastErrorCode()); |
| 170 | EXPECT_EQ(0x1000U, this->eh_frame_->LastErrorAddress()); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 171 | } |
| 172 | |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 173 | // We are assuming that pc rel, is really relative to the load_bias. |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 174 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_read_pcrel) { |
| 175 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_pcrel | DW_EH_PE_udata4); |
| 176 | this->eh_frame_->TestSetEntriesOffset(0x1000); |
| 177 | this->eh_frame_->TestSetEntriesDataOffset(0x3000); |
| 178 | this->eh_frame_->TestSetTableEntrySize(0x10); |
| 179 | |
| 180 | this->memory_.SetData32(0x1040, 0x340); |
| 181 | this->memory_.SetData32(0x1044, 0x500); |
| 182 | |
| 183 | auto info = this->eh_frame_->GetFdeInfoFromIndex(2); |
| 184 | ASSERT_TRUE(info != nullptr); |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 185 | EXPECT_EQ(0x340U, info->pc); |
| 186 | EXPECT_EQ(0x500U, info->offset); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_read_datarel) { |
| 190 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_datarel | DW_EH_PE_udata4); |
| 191 | this->eh_frame_->TestSetEntriesOffset(0x1000); |
| 192 | this->eh_frame_->TestSetEntriesDataOffset(0x3000); |
| 193 | this->eh_frame_->TestSetTableEntrySize(0x10); |
| 194 | |
| 195 | this->memory_.SetData32(0x1040, 0x340); |
| 196 | this->memory_.SetData32(0x1044, 0x500); |
| 197 | |
| 198 | auto info = this->eh_frame_->GetFdeInfoFromIndex(2); |
| 199 | ASSERT_TRUE(info != nullptr); |
Christopher Ferris | e37e2d0 | 2018-02-09 15:57:39 -0800 | [diff] [blame] | 200 | EXPECT_EQ(0x3340U, info->pc); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 201 | EXPECT_EQ(0x3500U, info->offset); |
| 202 | } |
| 203 | |
| 204 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_cached) { |
| 205 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_udata4); |
| 206 | this->eh_frame_->TestSetEntriesOffset(0x1000); |
| 207 | this->eh_frame_->TestSetTableEntrySize(0x10); |
| 208 | |
| 209 | this->memory_.SetData32(0x1040, 0x340); |
| 210 | this->memory_.SetData32(0x1044, 0x500); |
| 211 | |
| 212 | auto info = this->eh_frame_->GetFdeInfoFromIndex(2); |
| 213 | ASSERT_TRUE(info != nullptr); |
Christopher Ferris | e37e2d0 | 2018-02-09 15:57:39 -0800 | [diff] [blame] | 214 | EXPECT_EQ(0x340U, info->pc); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 215 | EXPECT_EQ(0x500U, info->offset); |
| 216 | |
| 217 | // Clear the memory so that this will fail if it doesn't read cached data. |
| 218 | this->memory_.Clear(); |
| 219 | |
| 220 | info = this->eh_frame_->GetFdeInfoFromIndex(2); |
| 221 | ASSERT_TRUE(info != nullptr); |
Christopher Ferris | e37e2d0 | 2018-02-09 15:57:39 -0800 | [diff] [blame] | 222 | EXPECT_EQ(0x340U, info->pc); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 223 | EXPECT_EQ(0x500U, info->offset); |
| 224 | } |
| 225 | |
| 226 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetBinary_verify) { |
| 227 | this->eh_frame_->TestSetTableEntrySize(0x10); |
| 228 | this->eh_frame_->TestSetFdeCount(10); |
| 229 | |
| 230 | typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo info; |
| 231 | for (size_t i = 0; i < 10; i++) { |
| 232 | info.pc = 0x1000 * (i + 1); |
| 233 | info.offset = 0x5000 + i * 0x20; |
| 234 | this->eh_frame_->TestSetFdeInfo(i, info); |
| 235 | } |
| 236 | |
| 237 | uint64_t fde_offset; |
| 238 | EXPECT_FALSE(this->eh_frame_->GetFdeOffsetBinary(0x100, &fde_offset, 10)); |
| 239 | // Not an error, just not found. |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 240 | ASSERT_EQ(DWARF_ERROR_NONE, this->eh_frame_->LastErrorCode()); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 241 | // Even number of elements. |
| 242 | for (size_t i = 0; i < 10; i++) { |
| 243 | TypeParam pc = 0x1000 * (i + 1); |
| 244 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetBinary(pc, &fde_offset, 10)) << "Failed at index " << i; |
| 245 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset) << "Failed at index " << i; |
| 246 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetBinary(pc + 1, &fde_offset, 10)) |
| 247 | << "Failed at index " << i; |
| 248 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset) << "Failed at index " << i; |
| 249 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetBinary(pc + 0xfff, &fde_offset, 10)) |
| 250 | << "Failed at index " << i; |
| 251 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset) << "Failed at index " << i; |
| 252 | } |
| 253 | // Odd number of elements. |
| 254 | for (size_t i = 0; i < 9; i++) { |
| 255 | TypeParam pc = 0x1000 * (i + 1); |
| 256 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetBinary(pc, &fde_offset, 9)) << "Failed at index " << i; |
| 257 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset) << "Failed at index " << i; |
| 258 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetBinary(pc + 1, &fde_offset, 9)) |
| 259 | << "Failed at index " << i; |
| 260 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset) << "Failed at index " << i; |
| 261 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetBinary(pc + 0xfff, &fde_offset, 9)) |
| 262 | << "Failed at index " << i; |
| 263 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset) << "Failed at index " << i; |
| 264 | } |
| 265 | } |
| 266 | |
Christopher Ferris | d96cbae | 2017-11-08 11:01:18 -0800 | [diff] [blame] | 267 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetBinary_index_fail) { |
| 268 | this->eh_frame_->TestSetTableEntrySize(0x10); |
| 269 | this->eh_frame_->TestSetFdeCount(10); |
| 270 | |
| 271 | uint64_t fde_offset; |
| 272 | EXPECT_FALSE(this->eh_frame_->GetFdeOffsetBinary(0x1000, &fde_offset, 10)); |
| 273 | } |
| 274 | |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 275 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetSequential) { |
| 276 | this->eh_frame_->TestSetFdeCount(10); |
| 277 | this->eh_frame_->TestSetEntriesDataOffset(0x100); |
| 278 | this->eh_frame_->TestSetEntriesEnd(0x2000); |
| 279 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_udata4); |
| 280 | |
| 281 | this->memory_.SetData32(0x1040, 0x340); |
| 282 | this->memory_.SetData32(0x1044, 0x500); |
| 283 | |
| 284 | this->memory_.SetData32(0x1048, 0x440); |
| 285 | this->memory_.SetData32(0x104c, 0x600); |
| 286 | |
| 287 | // Verify that if entries is zero, that it fails. |
| 288 | uint64_t fde_offset; |
| 289 | ASSERT_FALSE(this->eh_frame_->GetFdeOffsetSequential(0x344, &fde_offset)); |
| 290 | this->eh_frame_->TestSetCurEntriesOffset(0x1040); |
| 291 | |
| 292 | ASSERT_TRUE(this->eh_frame_->GetFdeOffsetSequential(0x344, &fde_offset)); |
| 293 | EXPECT_EQ(0x500U, fde_offset); |
| 294 | |
| 295 | ASSERT_TRUE(this->eh_frame_->GetFdeOffsetSequential(0x444, &fde_offset)); |
| 296 | EXPECT_EQ(0x600U, fde_offset); |
| 297 | |
| 298 | // Expect that the data is cached so no more memory reads will occur. |
| 299 | this->memory_.Clear(); |
| 300 | ASSERT_TRUE(this->eh_frame_->GetFdeOffsetSequential(0x444, &fde_offset)); |
| 301 | EXPECT_EQ(0x600U, fde_offset); |
| 302 | } |
| 303 | |
| 304 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetSequential_last_element) { |
| 305 | this->eh_frame_->TestSetFdeCount(2); |
| 306 | this->eh_frame_->TestSetEntriesDataOffset(0x100); |
| 307 | this->eh_frame_->TestSetEntriesEnd(0x2000); |
| 308 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_udata4); |
| 309 | this->eh_frame_->TestSetCurEntriesOffset(0x1040); |
| 310 | |
| 311 | this->memory_.SetData32(0x1040, 0x340); |
| 312 | this->memory_.SetData32(0x1044, 0x500); |
| 313 | |
| 314 | this->memory_.SetData32(0x1048, 0x440); |
| 315 | this->memory_.SetData32(0x104c, 0x600); |
| 316 | |
| 317 | uint64_t fde_offset; |
| 318 | ASSERT_TRUE(this->eh_frame_->GetFdeOffsetSequential(0x540, &fde_offset)); |
| 319 | EXPECT_EQ(0x600U, fde_offset); |
| 320 | } |
| 321 | |
| 322 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetSequential_end_check) { |
| 323 | this->eh_frame_->TestSetFdeCount(2); |
| 324 | this->eh_frame_->TestSetEntriesDataOffset(0x100); |
| 325 | this->eh_frame_->TestSetEntriesEnd(0x1048); |
| 326 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_udata4); |
| 327 | |
| 328 | this->memory_.SetData32(0x1040, 0x340); |
| 329 | this->memory_.SetData32(0x1044, 0x500); |
| 330 | |
| 331 | this->memory_.SetData32(0x1048, 0x440); |
| 332 | this->memory_.SetData32(0x104c, 0x600); |
| 333 | |
| 334 | uint64_t fde_offset; |
| 335 | ASSERT_FALSE(this->eh_frame_->GetFdeOffsetSequential(0x540, &fde_offset)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 336 | ASSERT_EQ(DWARF_ERROR_NONE, this->eh_frame_->LastErrorCode()); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetFromPc_fail_fde_count) { |
| 340 | this->eh_frame_->TestSetFdeCount(0); |
| 341 | |
| 342 | uint64_t fde_offset; |
| 343 | ASSERT_FALSE(this->eh_frame_->GetFdeOffsetFromPc(0x100, &fde_offset)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 344 | ASSERT_EQ(DWARF_ERROR_NONE, this->eh_frame_->LastErrorCode()); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetFromPc_binary_search) { |
| 348 | this->eh_frame_->TestSetTableEntrySize(16); |
| 349 | this->eh_frame_->TestSetFdeCount(10); |
| 350 | |
| 351 | typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo info; |
| 352 | info.pc = 0x550; |
| 353 | info.offset = 0x10500; |
| 354 | this->eh_frame_->TestSetFdeInfo(5, info); |
| 355 | info.pc = 0x750; |
| 356 | info.offset = 0x10700; |
| 357 | this->eh_frame_->TestSetFdeInfo(7, info); |
| 358 | info.pc = 0x850; |
| 359 | info.offset = 0x10800; |
| 360 | this->eh_frame_->TestSetFdeInfo(8, info); |
| 361 | |
| 362 | uint64_t fde_offset; |
| 363 | ASSERT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(0x800, &fde_offset)); |
| 364 | EXPECT_EQ(0x10700U, fde_offset); |
| 365 | } |
| 366 | |
| 367 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetFromPc_sequential_search) { |
| 368 | this->eh_frame_->TestSetFdeCount(10); |
| 369 | this->eh_frame_->TestSetTableEntrySize(0); |
| 370 | |
| 371 | typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo info; |
| 372 | info.pc = 0x50; |
| 373 | info.offset = 0x10000; |
| 374 | this->eh_frame_->TestSetFdeInfo(0, info); |
| 375 | info.pc = 0x150; |
| 376 | info.offset = 0x10100; |
| 377 | this->eh_frame_->TestSetFdeInfo(1, info); |
| 378 | info.pc = 0x250; |
| 379 | info.offset = 0x10200; |
| 380 | this->eh_frame_->TestSetFdeInfo(2, info); |
| 381 | |
| 382 | uint64_t fde_offset; |
| 383 | ASSERT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(0x200, &fde_offset)); |
| 384 | EXPECT_EQ(0x10100U, fde_offset); |
| 385 | } |
| 386 | |
| 387 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetCieFde32) { |
| 388 | // CIE 32 information. |
| 389 | this->memory_.SetData32(0xf000, 0x100); |
| 390 | this->memory_.SetData32(0xf004, 0); |
| 391 | this->memory_.SetData8(0xf008, 0x1); |
| 392 | this->memory_.SetData8(0xf009, '\0'); |
| 393 | this->memory_.SetData8(0xf00a, 4); |
| 394 | this->memory_.SetData8(0xf00b, 8); |
| 395 | this->memory_.SetData8(0xf00c, 0x20); |
| 396 | |
| 397 | // FDE 32 information. |
| 398 | this->memory_.SetData32(0x14000, 0x20); |
| 399 | this->memory_.SetData32(0x14004, 0x5004); |
| 400 | this->memory_.SetData32(0x14008, 0x9000); |
| 401 | this->memory_.SetData32(0x1400c, 0x100); |
| 402 | |
| 403 | const DwarfFde* fde = this->eh_frame_->GetFdeFromOffset(0x14000); |
| 404 | ASSERT_TRUE(fde != nullptr); |
| 405 | EXPECT_EQ(0x14010U, fde->cfa_instructions_offset); |
| 406 | EXPECT_EQ(0x14024U, fde->cfa_instructions_end); |
Christopher Ferris | c3d79f7 | 2017-11-28 19:14:54 -0800 | [diff] [blame] | 407 | EXPECT_EQ(0x1d008U, fde->pc_start); |
| 408 | EXPECT_EQ(0x1d108U, fde->pc_end); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 409 | EXPECT_EQ(0xf000U, fde->cie_offset); |
| 410 | EXPECT_EQ(0U, fde->lsda_address); |
| 411 | |
| 412 | ASSERT_TRUE(fde->cie != nullptr); |
| 413 | EXPECT_EQ(1U, fde->cie->version); |
| 414 | EXPECT_EQ(DW_EH_PE_sdata4, fde->cie->fde_address_encoding); |
| 415 | EXPECT_EQ(DW_EH_PE_omit, fde->cie->lsda_encoding); |
| 416 | EXPECT_EQ(0U, fde->cie->segment_size); |
| 417 | EXPECT_EQ(1U, fde->cie->augmentation_string.size()); |
| 418 | EXPECT_EQ('\0', fde->cie->augmentation_string[0]); |
| 419 | EXPECT_EQ(0U, fde->cie->personality_handler); |
| 420 | EXPECT_EQ(0xf00dU, fde->cie->cfa_instructions_offset); |
| 421 | EXPECT_EQ(0xf104U, fde->cie->cfa_instructions_end); |
| 422 | EXPECT_EQ(4U, fde->cie->code_alignment_factor); |
| 423 | EXPECT_EQ(8, fde->cie->data_alignment_factor); |
| 424 | EXPECT_EQ(0x20U, fde->cie->return_address_register); |
| 425 | } |
| 426 | |
| 427 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetCieFde64) { |
| 428 | // CIE 64 information. |
| 429 | this->memory_.SetData32(0x6000, 0xffffffff); |
| 430 | this->memory_.SetData64(0x6004, 0x100); |
| 431 | this->memory_.SetData64(0x600c, 0); |
| 432 | this->memory_.SetData8(0x6014, 0x1); |
| 433 | this->memory_.SetData8(0x6015, '\0'); |
| 434 | this->memory_.SetData8(0x6016, 4); |
| 435 | this->memory_.SetData8(0x6017, 8); |
| 436 | this->memory_.SetData8(0x6018, 0x20); |
| 437 | |
| 438 | // FDE 64 information. |
| 439 | this->memory_.SetData32(0x8000, 0xffffffff); |
| 440 | this->memory_.SetData64(0x8004, 0x200); |
| 441 | this->memory_.SetData64(0x800c, 0x200c); |
| 442 | this->memory_.SetData64(0x8014, 0x5000); |
| 443 | this->memory_.SetData64(0x801c, 0x300); |
| 444 | |
| 445 | const DwarfFde* fde = this->eh_frame_->GetFdeFromOffset(0x8000); |
| 446 | ASSERT_TRUE(fde != nullptr); |
| 447 | EXPECT_EQ(0x8024U, fde->cfa_instructions_offset); |
| 448 | EXPECT_EQ(0x820cU, fde->cfa_instructions_end); |
Christopher Ferris | c3d79f7 | 2017-11-28 19:14:54 -0800 | [diff] [blame] | 449 | EXPECT_EQ(0xd018U, fde->pc_start); |
| 450 | EXPECT_EQ(0xd318U, fde->pc_end); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 451 | EXPECT_EQ(0x6000U, fde->cie_offset); |
| 452 | EXPECT_EQ(0U, fde->lsda_address); |
| 453 | |
| 454 | ASSERT_TRUE(fde->cie != nullptr); |
| 455 | EXPECT_EQ(1U, fde->cie->version); |
| 456 | EXPECT_EQ(DW_EH_PE_sdata8, fde->cie->fde_address_encoding); |
| 457 | EXPECT_EQ(DW_EH_PE_omit, fde->cie->lsda_encoding); |
| 458 | EXPECT_EQ(0U, fde->cie->segment_size); |
| 459 | EXPECT_EQ(1U, fde->cie->augmentation_string.size()); |
| 460 | EXPECT_EQ('\0', fde->cie->augmentation_string[0]); |
| 461 | EXPECT_EQ(0U, fde->cie->personality_handler); |
| 462 | EXPECT_EQ(0x6019U, fde->cie->cfa_instructions_offset); |
| 463 | EXPECT_EQ(0x610cU, fde->cie->cfa_instructions_end); |
| 464 | EXPECT_EQ(4U, fde->cie->code_alignment_factor); |
| 465 | EXPECT_EQ(8, fde->cie->data_alignment_factor); |
| 466 | EXPECT_EQ(0x20U, fde->cie->return_address_register); |
| 467 | } |
| 468 | |
| 469 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeFromPc_fde_not_found) { |
| 470 | this->eh_frame_->TestSetTableEntrySize(16); |
| 471 | this->eh_frame_->TestSetFdeCount(1); |
| 472 | |
| 473 | typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo info; |
| 474 | info.pc = 0x550; |
| 475 | info.offset = 0x10500; |
| 476 | this->eh_frame_->TestSetFdeInfo(0, info); |
| 477 | |
| 478 | ASSERT_EQ(nullptr, this->eh_frame_->GetFdeFromPc(0x800)); |
| 479 | } |
| 480 | |
Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 481 | REGISTER_TYPED_TEST_CASE_P(DwarfEhFrameWithHdrTest, Init, Init_non_zero_load_bias, |
| 482 | GetFdeInfoFromIndex_expect_cache_fail, GetFdeInfoFromIndex_read_pcrel, |
| 483 | GetFdeInfoFromIndex_read_datarel, GetFdeInfoFromIndex_cached, |
| 484 | GetFdeOffsetBinary_verify, GetFdeOffsetBinary_index_fail, |
| 485 | GetFdeOffsetSequential, GetFdeOffsetSequential_last_element, |
| 486 | GetFdeOffsetSequential_end_check, GetFdeOffsetFromPc_fail_fde_count, |
| 487 | GetFdeOffsetFromPc_binary_search, GetFdeOffsetFromPc_sequential_search, |
| 488 | GetCieFde32, GetCieFde64, GetFdeFromPc_fde_not_found); |
Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 489 | |
| 490 | typedef ::testing::Types<uint32_t, uint64_t> DwarfEhFrameWithHdrTestTypes; |
| 491 | INSTANTIATE_TYPED_TEST_CASE_P(, DwarfEhFrameWithHdrTest, DwarfEhFrameWithHdrTestTypes); |
| 492 | |
| 493 | } // namespace unwindstack |