| 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> | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 33 | class TestDwarfEhFrameWithHdr : public DwarfEhFrameWithHdr<TypeParam> { | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 34 | public: | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 35 | TestDwarfEhFrameWithHdr(Memory* memory) : DwarfEhFrameWithHdr<TypeParam>(memory) {} | 
|  | 36 | ~TestDwarfEhFrameWithHdr() = default; | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 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(); | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 67 | eh_frame_ = new TestDwarfEhFrameWithHdr<TypeParam>(&memory_); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 68 | ResetLogs(); | 
|  | 69 | } | 
|  | 70 |  | 
|  | 71 | void TearDown() override { delete eh_frame_; } | 
|  | 72 |  | 
|  | 73 | MemoryFake memory_; | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 74 | TestDwarfEhFrameWithHdr<TypeParam>* eh_frame_ = nullptr; | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 75 | }; | 
| Christopher Ferris | 7e21eba | 2019-06-20 16:16:42 -0700 | [diff] [blame] | 76 | TYPED_TEST_SUITE_P(DwarfEhFrameWithHdrTest); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 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 | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 98 | // Verify a zero table entry size fails to init. | 
|  | 99 | this->memory_.SetData8(0x1003, 0x1); | 
|  | 100 | ASSERT_FALSE(this->eh_frame_->Init(0x1000, 0x100, 0)); | 
|  | 101 | ASSERT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->eh_frame_->LastErrorCode()); | 
|  | 102 | // Reset the value back to the original. | 
|  | 103 | this->memory_.SetData8(0x1003, DW_EH_PE_sdata4); | 
|  | 104 |  | 
| Christopher Ferris | 1a141a0 | 2018-01-24 08:52:47 -0800 | [diff] [blame] | 105 | // Verify a zero fde count fails to init. | 
|  | 106 | this->memory_.SetData32(0x1006, 0); | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 107 | ASSERT_FALSE(this->eh_frame_->Init(0x1000, 0x100, 0)); | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 108 | ASSERT_EQ(DWARF_ERROR_NO_FDES, this->eh_frame_->LastErrorCode()); | 
| Christopher Ferris | 1a141a0 | 2018-01-24 08:52:47 -0800 | [diff] [blame] | 109 |  | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 110 | // Verify an unexpected version will cause a fail. | 
| Christopher Ferris | 1a141a0 | 2018-01-24 08:52:47 -0800 | [diff] [blame] | 111 | this->memory_.SetData32(0x1006, 126); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 112 | this->memory_.SetData8(0x1000, 0); | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 113 | ASSERT_FALSE(this->eh_frame_->Init(0x1000, 0x100, 0)); | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 114 | ASSERT_EQ(DWARF_ERROR_UNSUPPORTED_VERSION, this->eh_frame_->LastErrorCode()); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 115 | this->memory_.SetData8(0x1000, 2); | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 116 | ASSERT_FALSE(this->eh_frame_->Init(0x1000, 0x100, 0)); | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 117 | ASSERT_EQ(DWARF_ERROR_UNSUPPORTED_VERSION, this->eh_frame_->LastErrorCode()); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 118 | } | 
|  | 119 |  | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 120 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, Init_non_zero_load_bias) { | 
|  | 121 | this->memory_.SetMemory(0x1000, std::vector<uint8_t>{0x1, DW_EH_PE_udata2, DW_EH_PE_udata4, | 
|  | 122 | DW_EH_PE_pcrel | DW_EH_PE_sdata4}); | 
|  | 123 | this->memory_.SetData16(0x1004, 0x500); | 
|  | 124 | this->memory_.SetData32(0x1006, 1); | 
|  | 125 | this->memory_.SetData32(0x100a, 0x2500); | 
|  | 126 | this->memory_.SetData32(0x100e, 0x1400); | 
|  | 127 |  | 
|  | 128 | // CIE 32 information. | 
|  | 129 | this->memory_.SetData32(0x1300, 0xfc); | 
|  | 130 | this->memory_.SetData32(0x1304, 0); | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 131 | this->memory_.SetMemory(0x1308, std::vector<uint8_t>{1, 'z', 'R', '\0', 0, 0, 0, 0, 0x1b}); | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 132 |  | 
|  | 133 | // FDE 32 information. | 
|  | 134 | this->memory_.SetData32(0x1400, 0xfc); | 
|  | 135 | this->memory_.SetData32(0x1404, 0x104); | 
|  | 136 | this->memory_.SetData32(0x1408, 0x10f8); | 
|  | 137 | this->memory_.SetData32(0x140c, 0x200); | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 138 | this->memory_.SetData16(0x1410, 0); | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 139 |  | 
|  | 140 | ASSERT_TRUE(this->eh_frame_->Init(0x1000, 0x100, 0x2000)); | 
|  | 141 | EXPECT_EQ(1U, this->eh_frame_->TestGetVersion()); | 
|  | 142 | EXPECT_EQ(DW_EH_PE_udata2, this->eh_frame_->TestGetPtrEncoding()); | 
|  | 143 | EXPECT_EQ(0x1b, this->eh_frame_->TestGetTableEncoding()); | 
|  | 144 | EXPECT_EQ(4U, this->eh_frame_->TestGetTableEntrySize()); | 
|  | 145 | EXPECT_EQ(1U, this->eh_frame_->TestGetFdeCount()); | 
|  | 146 | EXPECT_EQ(0x500U, this->eh_frame_->TestGetPtrOffset()); | 
|  | 147 | EXPECT_EQ(0x100aU, this->eh_frame_->TestGetEntriesOffset()); | 
|  | 148 | EXPECT_EQ(0x1100U, this->eh_frame_->TestGetEntriesEnd()); | 
|  | 149 | EXPECT_EQ(0x1000U, this->eh_frame_->TestGetEntriesDataOffset()); | 
|  | 150 | EXPECT_EQ(0x100aU, this->eh_frame_->TestGetCurEntriesOffset()); | 
|  | 151 |  | 
|  | 152 | const DwarfFde* fde = this->eh_frame_->GetFdeFromPc(0x4600); | 
|  | 153 | ASSERT_TRUE(fde != nullptr); | 
|  | 154 | EXPECT_EQ(0x4500U, fde->pc_start); | 
|  | 155 | EXPECT_EQ(0x4700U, fde->pc_end); | 
|  | 156 | } | 
|  | 157 |  | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 158 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdes) { | 
|  | 159 | this->memory_.SetMemory( | 
|  | 160 | 0x1000, std::vector<uint8_t>{1, DW_EH_PE_udata2, DW_EH_PE_udata4, DW_EH_PE_sdata4}); | 
|  | 161 | this->memory_.SetData16(0x1004, 0x500); | 
|  | 162 | this->memory_.SetData32(0x1006, 4); | 
|  | 163 |  | 
|  | 164 | // Header information. | 
|  | 165 | this->memory_.SetData32(0x100a, 0x4600); | 
|  | 166 | this->memory_.SetData32(0x100e, 0x1500); | 
|  | 167 | this->memory_.SetData32(0x1012, 0x5500); | 
|  | 168 | this->memory_.SetData32(0x1016, 0x1400); | 
|  | 169 | this->memory_.SetData32(0x101a, 0x6800); | 
|  | 170 | this->memory_.SetData32(0x101e, 0x1700); | 
|  | 171 | this->memory_.SetData32(0x1022, 0x7700); | 
|  | 172 | this->memory_.SetData32(0x1026, 0x1600); | 
|  | 173 |  | 
|  | 174 | // CIE 32 information. | 
|  | 175 | this->memory_.SetData32(0x1300, 0xfc); | 
|  | 176 | this->memory_.SetData32(0x1304, 0); | 
|  | 177 | this->memory_.SetMemory(0x1308, std::vector<uint8_t>{1, '\0', 0, 0, 0}); | 
|  | 178 |  | 
|  | 179 | // FDE 32 information. | 
|  | 180 | // pc 0x5500 - 0x5700 | 
|  | 181 | this->memory_.SetData32(0x1400, 0xfc); | 
|  | 182 | this->memory_.SetData32(0x1404, 0x104); | 
|  | 183 | this->memory_.SetData32(0x1408, 0x40f8); | 
|  | 184 | this->memory_.SetData32(0x140c, 0x200); | 
|  | 185 |  | 
|  | 186 | // pc 0x4600 - 0x4800 | 
|  | 187 | this->memory_.SetData32(0x1500, 0xfc); | 
|  | 188 | this->memory_.SetData32(0x1504, 0x204); | 
|  | 189 | this->memory_.SetData32(0x1508, 0x30f8); | 
|  | 190 | this->memory_.SetData32(0x150c, 0x200); | 
|  | 191 |  | 
|  | 192 | // pc 0x7700 - 0x7900 | 
|  | 193 | this->memory_.SetData32(0x1600, 0xfc); | 
|  | 194 | this->memory_.SetData32(0x1604, 0x304); | 
|  | 195 | this->memory_.SetData32(0x1608, 0x60f8); | 
|  | 196 | this->memory_.SetData32(0x160c, 0x200); | 
|  | 197 |  | 
|  | 198 | // pc 0x6800 - 0x6a00 | 
|  | 199 | this->memory_.SetData32(0x1700, 0xfc); | 
|  | 200 | this->memory_.SetData32(0x1704, 0x404); | 
|  | 201 | this->memory_.SetData32(0x1708, 0x50f8); | 
|  | 202 | this->memory_.SetData32(0x170c, 0x200); | 
|  | 203 |  | 
|  | 204 | ASSERT_TRUE(this->eh_frame_->Init(0x1000, 0x100, 0)); | 
|  | 205 |  | 
|  | 206 | std::vector<const DwarfFde*> fdes; | 
|  | 207 | this->eh_frame_->GetFdes(&fdes); | 
|  | 208 | ASSERT_EQ(4U, fdes.size()); | 
|  | 209 |  | 
|  | 210 | EXPECT_EQ(0x4600U, fdes[0]->pc_start); | 
|  | 211 | EXPECT_EQ(0x4800U, fdes[0]->pc_end); | 
|  | 212 | EXPECT_EQ(0x5500U, fdes[1]->pc_start); | 
|  | 213 | EXPECT_EQ(0x5700U, fdes[1]->pc_end); | 
|  | 214 | EXPECT_EQ(0x6800U, fdes[2]->pc_start); | 
|  | 215 | EXPECT_EQ(0x6a00U, fdes[2]->pc_end); | 
|  | 216 | EXPECT_EQ(0x7700U, fdes[3]->pc_start); | 
|  | 217 | EXPECT_EQ(0x7900U, fdes[3]->pc_end); | 
|  | 218 | } | 
|  | 219 |  | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 220 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_expect_cache_fail) { | 
|  | 221 | this->eh_frame_->TestSetTableEntrySize(0x10); | 
|  | 222 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_udata4); | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 223 | this->eh_frame_->TestSetEntriesOffset(0x1000); | 
|  | 224 |  | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 225 | ASSERT_TRUE(this->eh_frame_->GetFdeInfoFromIndex(0) == nullptr); | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 226 | ASSERT_EQ(DWARF_ERROR_MEMORY_INVALID, this->eh_frame_->LastErrorCode()); | 
|  | 227 | EXPECT_EQ(0x1000U, this->eh_frame_->LastErrorAddress()); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 228 | ASSERT_TRUE(this->eh_frame_->GetFdeInfoFromIndex(0) == nullptr); | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 229 | ASSERT_EQ(DWARF_ERROR_MEMORY_INVALID, this->eh_frame_->LastErrorCode()); | 
|  | 230 | EXPECT_EQ(0x1000U, this->eh_frame_->LastErrorAddress()); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 231 | } | 
|  | 232 |  | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 233 | // 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] | 234 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_read_pcrel) { | 
|  | 235 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_pcrel | DW_EH_PE_udata4); | 
|  | 236 | this->eh_frame_->TestSetEntriesOffset(0x1000); | 
|  | 237 | this->eh_frame_->TestSetEntriesDataOffset(0x3000); | 
|  | 238 | this->eh_frame_->TestSetTableEntrySize(0x10); | 
|  | 239 |  | 
|  | 240 | this->memory_.SetData32(0x1040, 0x340); | 
|  | 241 | this->memory_.SetData32(0x1044, 0x500); | 
|  | 242 |  | 
|  | 243 | auto info = this->eh_frame_->GetFdeInfoFromIndex(2); | 
|  | 244 | ASSERT_TRUE(info != nullptr); | 
| Christopher Ferris | 4cc36d2 | 2018-06-06 14:47:31 -0700 | [diff] [blame] | 245 | EXPECT_EQ(0x340U, info->pc); | 
|  | 246 | EXPECT_EQ(0x500U, info->offset); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 247 | } | 
|  | 248 |  | 
|  | 249 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_read_datarel) { | 
|  | 250 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_datarel | DW_EH_PE_udata4); | 
|  | 251 | this->eh_frame_->TestSetEntriesOffset(0x1000); | 
|  | 252 | this->eh_frame_->TestSetEntriesDataOffset(0x3000); | 
|  | 253 | this->eh_frame_->TestSetTableEntrySize(0x10); | 
|  | 254 |  | 
|  | 255 | this->memory_.SetData32(0x1040, 0x340); | 
|  | 256 | this->memory_.SetData32(0x1044, 0x500); | 
|  | 257 |  | 
|  | 258 | auto info = this->eh_frame_->GetFdeInfoFromIndex(2); | 
|  | 259 | ASSERT_TRUE(info != nullptr); | 
| Christopher Ferris | e37e2d0 | 2018-02-09 15:57:39 -0800 | [diff] [blame] | 260 | EXPECT_EQ(0x3340U, info->pc); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 261 | EXPECT_EQ(0x3500U, info->offset); | 
|  | 262 | } | 
|  | 263 |  | 
|  | 264 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeInfoFromIndex_cached) { | 
|  | 265 | this->eh_frame_->TestSetTableEncoding(DW_EH_PE_udata4); | 
|  | 266 | this->eh_frame_->TestSetEntriesOffset(0x1000); | 
|  | 267 | this->eh_frame_->TestSetTableEntrySize(0x10); | 
|  | 268 |  | 
|  | 269 | this->memory_.SetData32(0x1040, 0x340); | 
|  | 270 | this->memory_.SetData32(0x1044, 0x500); | 
|  | 271 |  | 
|  | 272 | auto info = this->eh_frame_->GetFdeInfoFromIndex(2); | 
|  | 273 | ASSERT_TRUE(info != nullptr); | 
| Christopher Ferris | e37e2d0 | 2018-02-09 15:57:39 -0800 | [diff] [blame] | 274 | EXPECT_EQ(0x340U, info->pc); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 275 | EXPECT_EQ(0x500U, info->offset); | 
|  | 276 |  | 
|  | 277 | // Clear the memory so that this will fail if it doesn't read cached data. | 
|  | 278 | this->memory_.Clear(); | 
|  | 279 |  | 
|  | 280 | info = this->eh_frame_->GetFdeInfoFromIndex(2); | 
|  | 281 | ASSERT_TRUE(info != nullptr); | 
| Christopher Ferris | e37e2d0 | 2018-02-09 15:57:39 -0800 | [diff] [blame] | 282 | EXPECT_EQ(0x340U, info->pc); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 283 | EXPECT_EQ(0x500U, info->offset); | 
|  | 284 | } | 
|  | 285 |  | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 286 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetFromPc_verify) { | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 287 | this->eh_frame_->TestSetTableEntrySize(0x10); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 288 |  | 
|  | 289 | typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo info; | 
|  | 290 | for (size_t i = 0; i < 10; i++) { | 
|  | 291 | info.pc = 0x1000 * (i + 1); | 
|  | 292 | info.offset = 0x5000 + i * 0x20; | 
|  | 293 | this->eh_frame_->TestSetFdeInfo(i, info); | 
|  | 294 | } | 
|  | 295 |  | 
|  | 296 | uint64_t fde_offset; | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 297 | this->eh_frame_->TestSetFdeCount(10); | 
|  | 298 | EXPECT_FALSE(this->eh_frame_->GetFdeOffsetFromPc(0x100, &fde_offset)); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 299 | // Not an error, just not found. | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 300 | ASSERT_EQ(DWARF_ERROR_NONE, this->eh_frame_->LastErrorCode()); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 301 | // Even number of elements. | 
|  | 302 | for (size_t i = 0; i < 10; i++) { | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 303 | SCOPED_TRACE(testing::Message() << "Failed at index " << i); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 304 | TypeParam pc = 0x1000 * (i + 1); | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 305 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(pc, &fde_offset)); | 
|  | 306 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset); | 
|  | 307 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(pc + 1, &fde_offset)); | 
|  | 308 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset); | 
|  | 309 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(pc + 0xfff, &fde_offset)); | 
|  | 310 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 311 | } | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 312 |  | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 313 | // Odd number of elements. | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 314 | this->eh_frame_->TestSetFdeCount(9); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 315 | for (size_t i = 0; i < 9; i++) { | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 316 | SCOPED_TRACE(testing::Message() << "Failed at index " << i); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 317 | TypeParam pc = 0x1000 * (i + 1); | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 318 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(pc, &fde_offset)); | 
|  | 319 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset); | 
|  | 320 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(pc + 1, &fde_offset)); | 
|  | 321 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset); | 
|  | 322 | EXPECT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(pc + 0xfff, &fde_offset)); | 
|  | 323 | EXPECT_EQ(0x5000 + i * 0x20, fde_offset); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 324 | } | 
|  | 325 | } | 
|  | 326 |  | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 327 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetFromPc_index_fail) { | 
| Christopher Ferris | d96cbae | 2017-11-08 11:01:18 -0800 | [diff] [blame] | 328 | this->eh_frame_->TestSetTableEntrySize(0x10); | 
|  | 329 | this->eh_frame_->TestSetFdeCount(10); | 
|  | 330 |  | 
|  | 331 | uint64_t fde_offset; | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 332 | EXPECT_FALSE(this->eh_frame_->GetFdeOffsetFromPc(0x1000, &fde_offset)); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 333 | } | 
|  | 334 |  | 
|  | 335 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetFromPc_fail_fde_count) { | 
|  | 336 | this->eh_frame_->TestSetFdeCount(0); | 
|  | 337 |  | 
|  | 338 | uint64_t fde_offset; | 
|  | 339 | ASSERT_FALSE(this->eh_frame_->GetFdeOffsetFromPc(0x100, &fde_offset)); | 
| Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 340 | ASSERT_EQ(DWARF_ERROR_NONE, this->eh_frame_->LastErrorCode()); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 341 | } | 
|  | 342 |  | 
| Christopher Ferris | 22d8e8e | 2019-03-29 12:34:58 -0700 | [diff] [blame] | 343 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeOffsetFromPc_search) { | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 344 | this->eh_frame_->TestSetTableEntrySize(16); | 
|  | 345 | this->eh_frame_->TestSetFdeCount(10); | 
|  | 346 |  | 
|  | 347 | typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo info; | 
|  | 348 | info.pc = 0x550; | 
|  | 349 | info.offset = 0x10500; | 
|  | 350 | this->eh_frame_->TestSetFdeInfo(5, info); | 
|  | 351 | info.pc = 0x750; | 
|  | 352 | info.offset = 0x10700; | 
|  | 353 | this->eh_frame_->TestSetFdeInfo(7, info); | 
|  | 354 | info.pc = 0x850; | 
|  | 355 | info.offset = 0x10800; | 
|  | 356 | this->eh_frame_->TestSetFdeInfo(8, info); | 
|  | 357 |  | 
|  | 358 | uint64_t fde_offset; | 
|  | 359 | ASSERT_TRUE(this->eh_frame_->GetFdeOffsetFromPc(0x800, &fde_offset)); | 
|  | 360 | EXPECT_EQ(0x10700U, fde_offset); | 
|  | 361 | } | 
|  | 362 |  | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 363 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetCieFde32) { | 
|  | 364 | // CIE 32 information. | 
|  | 365 | this->memory_.SetData32(0xf000, 0x100); | 
|  | 366 | this->memory_.SetData32(0xf004, 0); | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 367 | this->memory_.SetMemory(0xf008, std::vector<uint8_t>{1, '\0', 4, 8, 0x20}); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 368 |  | 
|  | 369 | // FDE 32 information. | 
|  | 370 | this->memory_.SetData32(0x14000, 0x20); | 
|  | 371 | this->memory_.SetData32(0x14004, 0x5004); | 
|  | 372 | this->memory_.SetData32(0x14008, 0x9000); | 
|  | 373 | this->memory_.SetData32(0x1400c, 0x100); | 
|  | 374 |  | 
|  | 375 | const DwarfFde* fde = this->eh_frame_->GetFdeFromOffset(0x14000); | 
|  | 376 | ASSERT_TRUE(fde != nullptr); | 
|  | 377 | EXPECT_EQ(0x14010U, fde->cfa_instructions_offset); | 
|  | 378 | EXPECT_EQ(0x14024U, fde->cfa_instructions_end); | 
| Christopher Ferris | c3d79f7 | 2017-11-28 19:14:54 -0800 | [diff] [blame] | 379 | EXPECT_EQ(0x1d008U, fde->pc_start); | 
|  | 380 | EXPECT_EQ(0x1d108U, fde->pc_end); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 381 | EXPECT_EQ(0xf000U, fde->cie_offset); | 
|  | 382 | EXPECT_EQ(0U, fde->lsda_address); | 
|  | 383 |  | 
|  | 384 | ASSERT_TRUE(fde->cie != nullptr); | 
|  | 385 | EXPECT_EQ(1U, fde->cie->version); | 
|  | 386 | EXPECT_EQ(DW_EH_PE_sdata4, fde->cie->fde_address_encoding); | 
|  | 387 | EXPECT_EQ(DW_EH_PE_omit, fde->cie->lsda_encoding); | 
|  | 388 | EXPECT_EQ(0U, fde->cie->segment_size); | 
|  | 389 | EXPECT_EQ(1U, fde->cie->augmentation_string.size()); | 
|  | 390 | EXPECT_EQ('\0', fde->cie->augmentation_string[0]); | 
|  | 391 | EXPECT_EQ(0U, fde->cie->personality_handler); | 
|  | 392 | EXPECT_EQ(0xf00dU, fde->cie->cfa_instructions_offset); | 
|  | 393 | EXPECT_EQ(0xf104U, fde->cie->cfa_instructions_end); | 
|  | 394 | EXPECT_EQ(4U, fde->cie->code_alignment_factor); | 
|  | 395 | EXPECT_EQ(8, fde->cie->data_alignment_factor); | 
|  | 396 | EXPECT_EQ(0x20U, fde->cie->return_address_register); | 
|  | 397 | } | 
|  | 398 |  | 
|  | 399 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetCieFde64) { | 
|  | 400 | // CIE 64 information. | 
|  | 401 | this->memory_.SetData32(0x6000, 0xffffffff); | 
|  | 402 | this->memory_.SetData64(0x6004, 0x100); | 
|  | 403 | this->memory_.SetData64(0x600c, 0); | 
| Christopher Ferris | 92acaac | 2018-06-21 10:44:02 -0700 | [diff] [blame] | 404 | this->memory_.SetMemory(0x6014, std::vector<uint8_t>{1, '\0', 4, 8, 0x20}); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 405 |  | 
|  | 406 | // FDE 64 information. | 
|  | 407 | this->memory_.SetData32(0x8000, 0xffffffff); | 
|  | 408 | this->memory_.SetData64(0x8004, 0x200); | 
|  | 409 | this->memory_.SetData64(0x800c, 0x200c); | 
|  | 410 | this->memory_.SetData64(0x8014, 0x5000); | 
|  | 411 | this->memory_.SetData64(0x801c, 0x300); | 
|  | 412 |  | 
|  | 413 | const DwarfFde* fde = this->eh_frame_->GetFdeFromOffset(0x8000); | 
|  | 414 | ASSERT_TRUE(fde != nullptr); | 
|  | 415 | EXPECT_EQ(0x8024U, fde->cfa_instructions_offset); | 
|  | 416 | EXPECT_EQ(0x820cU, fde->cfa_instructions_end); | 
| Christopher Ferris | c3d79f7 | 2017-11-28 19:14:54 -0800 | [diff] [blame] | 417 | EXPECT_EQ(0xd018U, fde->pc_start); | 
|  | 418 | EXPECT_EQ(0xd318U, fde->pc_end); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 419 | EXPECT_EQ(0x6000U, fde->cie_offset); | 
|  | 420 | EXPECT_EQ(0U, fde->lsda_address); | 
|  | 421 |  | 
|  | 422 | ASSERT_TRUE(fde->cie != nullptr); | 
|  | 423 | EXPECT_EQ(1U, fde->cie->version); | 
|  | 424 | EXPECT_EQ(DW_EH_PE_sdata8, fde->cie->fde_address_encoding); | 
|  | 425 | EXPECT_EQ(DW_EH_PE_omit, fde->cie->lsda_encoding); | 
|  | 426 | EXPECT_EQ(0U, fde->cie->segment_size); | 
|  | 427 | EXPECT_EQ(1U, fde->cie->augmentation_string.size()); | 
|  | 428 | EXPECT_EQ('\0', fde->cie->augmentation_string[0]); | 
|  | 429 | EXPECT_EQ(0U, fde->cie->personality_handler); | 
|  | 430 | EXPECT_EQ(0x6019U, fde->cie->cfa_instructions_offset); | 
|  | 431 | EXPECT_EQ(0x610cU, fde->cie->cfa_instructions_end); | 
|  | 432 | EXPECT_EQ(4U, fde->cie->code_alignment_factor); | 
|  | 433 | EXPECT_EQ(8, fde->cie->data_alignment_factor); | 
|  | 434 | EXPECT_EQ(0x20U, fde->cie->return_address_register); | 
|  | 435 | } | 
|  | 436 |  | 
|  | 437 | TYPED_TEST_P(DwarfEhFrameWithHdrTest, GetFdeFromPc_fde_not_found) { | 
|  | 438 | this->eh_frame_->TestSetTableEntrySize(16); | 
|  | 439 | this->eh_frame_->TestSetFdeCount(1); | 
|  | 440 |  | 
|  | 441 | typename DwarfEhFrameWithHdr<TypeParam>::FdeInfo info; | 
|  | 442 | info.pc = 0x550; | 
|  | 443 | info.offset = 0x10500; | 
|  | 444 | this->eh_frame_->TestSetFdeInfo(0, info); | 
|  | 445 |  | 
|  | 446 | ASSERT_EQ(nullptr, this->eh_frame_->GetFdeFromPc(0x800)); | 
|  | 447 | } | 
|  | 448 |  | 
| Christopher Ferris | 7e21eba | 2019-06-20 16:16:42 -0700 | [diff] [blame] | 449 | REGISTER_TYPED_TEST_SUITE_P(DwarfEhFrameWithHdrTest, Init, Init_non_zero_load_bias, GetFdes, | 
|  | 450 | GetFdeInfoFromIndex_expect_cache_fail, GetFdeInfoFromIndex_read_pcrel, | 
|  | 451 | GetFdeInfoFromIndex_read_datarel, GetFdeInfoFromIndex_cached, | 
|  | 452 | GetFdeOffsetFromPc_verify, GetFdeOffsetFromPc_index_fail, | 
|  | 453 | GetFdeOffsetFromPc_fail_fde_count, GetFdeOffsetFromPc_search, | 
|  | 454 | GetCieFde32, GetCieFde64, GetFdeFromPc_fde_not_found); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 455 |  | 
|  | 456 | typedef ::testing::Types<uint32_t, uint64_t> DwarfEhFrameWithHdrTestTypes; | 
| Christopher Ferris | 7e21eba | 2019-06-20 16:16:42 -0700 | [diff] [blame] | 457 | INSTANTIATE_TYPED_TEST_SUITE_P(, DwarfEhFrameWithHdrTest, DwarfEhFrameWithHdrTestTypes); | 
| Christopher Ferris | c9dee84 | 2017-11-03 14:50:27 -0700 | [diff] [blame] | 458 |  | 
|  | 459 | }  // namespace unwindstack |