Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -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 <memory> |
| 20 | #include <unordered_map> |
| 21 | |
| 22 | #include <gtest/gtest.h> |
| 23 | |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 24 | #include <unwindstack/DwarfError.h> |
Christopher Ferris | d226a51 | 2017-07-14 10:37:19 -0700 | [diff] [blame] | 25 | #include <unwindstack/DwarfLocation.h> |
| 26 | #include <unwindstack/DwarfMemory.h> |
| 27 | #include <unwindstack/DwarfStructs.h> |
| 28 | #include <unwindstack/Log.h> |
| 29 | |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 30 | #include "DwarfCfa.h" |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 31 | |
| 32 | #include "LogFake.h" |
| 33 | #include "MemoryFake.h" |
| 34 | |
Christopher Ferris | d226a51 | 2017-07-14 10:37:19 -0700 | [diff] [blame] | 35 | namespace unwindstack { |
| 36 | |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 37 | template <typename TypeParam> |
| 38 | class DwarfCfaTest : public ::testing::Test { |
| 39 | protected: |
| 40 | void SetUp() override { |
| 41 | ResetLogs(); |
| 42 | memory_.Clear(); |
| 43 | |
| 44 | dmem_.reset(new DwarfMemory(&memory_)); |
| 45 | |
| 46 | cie_.cfa_instructions_offset = 0x1000; |
| 47 | cie_.cfa_instructions_end = 0x1030; |
| 48 | // These two values should be different to distinguish between |
| 49 | // operations that deal with code versus data. |
| 50 | cie_.code_alignment_factor = 4; |
| 51 | cie_.data_alignment_factor = 8; |
| 52 | |
| 53 | fde_.cfa_instructions_offset = 0x2000; |
| 54 | fde_.cfa_instructions_end = 0x2030; |
| 55 | fde_.pc_start = 0x2000; |
| 56 | fde_.cie = &cie_; |
| 57 | |
| 58 | cfa_.reset(new DwarfCfa<TypeParam>(dmem_.get(), &fde_)); |
| 59 | } |
| 60 | |
| 61 | MemoryFake memory_; |
| 62 | std::unique_ptr<DwarfMemory> dmem_; |
| 63 | std::unique_ptr<DwarfCfa<TypeParam>> cfa_; |
Christopher Ferris | 53a3c9b | 2017-05-10 18:34:15 -0700 | [diff] [blame] | 64 | DwarfCie cie_; |
| 65 | DwarfFde fde_; |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 66 | }; |
Christopher Ferris | 7e21eba | 2019-06-20 16:16:42 -0700 | [diff] [blame] | 67 | TYPED_TEST_SUITE_P(DwarfCfaTest); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 68 | |
| 69 | // NOTE: All test class variables need to be referenced as this->. |
| 70 | |
| 71 | TYPED_TEST_P(DwarfCfaTest, cfa_illegal) { |
| 72 | for (uint8_t i = 0x17; i < 0x3f; i++) { |
| 73 | if (i == 0x2e || i == 0x2f) { |
| 74 | // Skip gnu extension ops. |
| 75 | continue; |
| 76 | } |
| 77 | this->memory_.SetMemory(0x2000, std::vector<uint8_t>{i}); |
| 78 | dwarf_loc_regs_t loc_regs; |
| 79 | |
| 80 | ASSERT_FALSE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2000, 0x2001, &loc_regs)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 81 | ASSERT_EQ(DWARF_ERROR_ILLEGAL_VALUE, this->cfa_->LastErrorCode()); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 82 | ASSERT_EQ(0x2001U, this->dmem_->cur_offset()); |
| 83 | |
| 84 | ASSERT_EQ("", GetFakeLogPrint()); |
| 85 | ASSERT_EQ("", GetFakeLogBuf()); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | TYPED_TEST_P(DwarfCfaTest, cfa_nop) { |
| 90 | this->memory_.SetMemory(0x2000, std::vector<uint8_t>{0x00}); |
| 91 | dwarf_loc_regs_t loc_regs; |
| 92 | |
| 93 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2000, 0x2001, &loc_regs)); |
| 94 | ASSERT_EQ(0x2001U, this->dmem_->cur_offset()); |
| 95 | ASSERT_EQ(0U, loc_regs.size()); |
| 96 | |
| 97 | ASSERT_EQ("", GetFakeLogPrint()); |
| 98 | ASSERT_EQ("", GetFakeLogBuf()); |
| 99 | } |
| 100 | |
| 101 | // This test needs to be examined. |
| 102 | TYPED_TEST_P(DwarfCfaTest, cfa_offset) { |
| 103 | this->memory_.SetMemory(0x2000, std::vector<uint8_t>{0x83, 0x04}); |
| 104 | dwarf_loc_regs_t loc_regs; |
| 105 | |
| 106 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2000, 0x2002, &loc_regs)); |
| 107 | ASSERT_EQ(0x2002U, this->dmem_->cur_offset()); |
| 108 | ASSERT_EQ(1U, loc_regs.size()); |
| 109 | auto location = loc_regs.find(3); |
| 110 | ASSERT_NE(loc_regs.end(), location); |
| 111 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 112 | ASSERT_EQ(32U, location->second.values[0]); |
| 113 | |
| 114 | ASSERT_EQ("", GetFakeLogPrint()); |
| 115 | ASSERT_EQ("", GetFakeLogBuf()); |
| 116 | |
| 117 | ResetLogs(); |
| 118 | this->memory_.SetMemory(0x2100, std::vector<uint8_t>{0x83, 0x84, 0x01}); |
| 119 | loc_regs.clear(); |
| 120 | |
| 121 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2100, 0x2103, &loc_regs)); |
| 122 | ASSERT_EQ(0x2103U, this->dmem_->cur_offset()); |
| 123 | ASSERT_EQ(1U, loc_regs.size()); |
| 124 | location = loc_regs.find(3); |
| 125 | ASSERT_NE(loc_regs.end(), location); |
| 126 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 127 | ASSERT_EQ(1056U, location->second.values[0]); |
| 128 | |
| 129 | ASSERT_EQ("", GetFakeLogPrint()); |
| 130 | ASSERT_EQ("", GetFakeLogBuf()); |
| 131 | } |
| 132 | |
| 133 | TYPED_TEST_P(DwarfCfaTest, cfa_offset_extended) { |
| 134 | this->memory_.SetMemory(0x500, std::vector<uint8_t>{0x05, 0x03, 0x02}); |
| 135 | dwarf_loc_regs_t loc_regs; |
| 136 | |
| 137 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x500, 0x503, &loc_regs)); |
| 138 | ASSERT_EQ(0x503U, this->dmem_->cur_offset()); |
| 139 | ASSERT_EQ(1U, loc_regs.size()); |
| 140 | auto location = loc_regs.find(3); |
| 141 | ASSERT_NE(loc_regs.end(), location); |
| 142 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 143 | ASSERT_EQ(2U, location->second.values[0]); |
| 144 | |
| 145 | ASSERT_EQ("", GetFakeLogPrint()); |
| 146 | ASSERT_EQ("", GetFakeLogBuf()); |
| 147 | |
| 148 | ResetLogs(); |
| 149 | loc_regs.clear(); |
| 150 | this->memory_.SetMemory(0x1500, std::vector<uint8_t>{0x05, 0x81, 0x01, 0x82, 0x12}); |
| 151 | |
| 152 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x1500, 0x1505, &loc_regs)); |
| 153 | ASSERT_EQ(0x1505U, this->dmem_->cur_offset()); |
| 154 | ASSERT_EQ(1U, loc_regs.size()); |
| 155 | location = loc_regs.find(129); |
| 156 | ASSERT_NE(loc_regs.end(), location); |
| 157 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 158 | ASSERT_EQ(2306U, location->second.values[0]); |
| 159 | |
| 160 | ASSERT_EQ("", GetFakeLogPrint()); |
| 161 | ASSERT_EQ("", GetFakeLogBuf()); |
| 162 | } |
| 163 | |
| 164 | TYPED_TEST_P(DwarfCfaTest, cfa_offset_extended_sf) { |
| 165 | this->memory_.SetMemory(0x500, std::vector<uint8_t>{0x11, 0x05, 0x10}); |
| 166 | dwarf_loc_regs_t loc_regs; |
| 167 | |
| 168 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x500, 0x503, &loc_regs)); |
| 169 | ASSERT_EQ(0x503U, this->dmem_->cur_offset()); |
| 170 | ASSERT_EQ(1U, loc_regs.size()); |
| 171 | auto location = loc_regs.find(5); |
| 172 | ASSERT_NE(loc_regs.end(), location); |
| 173 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 174 | ASSERT_EQ(0x80U, location->second.values[0]); |
| 175 | |
| 176 | ASSERT_EQ("", GetFakeLogPrint()); |
| 177 | ASSERT_EQ("", GetFakeLogBuf()); |
| 178 | |
| 179 | // Check a negative value for the offset. |
| 180 | ResetLogs(); |
| 181 | loc_regs.clear(); |
| 182 | this->memory_.SetMemory(0x1500, std::vector<uint8_t>{0x11, 0x86, 0x01, 0xff, 0x7f}); |
| 183 | |
| 184 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x1500, 0x1505, &loc_regs)); |
| 185 | ASSERT_EQ(0x1505U, this->dmem_->cur_offset()); |
| 186 | ASSERT_EQ(1U, loc_regs.size()); |
| 187 | location = loc_regs.find(134); |
| 188 | ASSERT_NE(loc_regs.end(), location); |
| 189 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 190 | ASSERT_EQ(static_cast<uint64_t>(-8), location->second.values[0]); |
| 191 | |
| 192 | ASSERT_EQ("", GetFakeLogPrint()); |
| 193 | ASSERT_EQ("", GetFakeLogBuf()); |
| 194 | } |
| 195 | |
| 196 | TYPED_TEST_P(DwarfCfaTest, cfa_restore) { |
| 197 | this->memory_.SetMemory(0x2000, std::vector<uint8_t>{0xc2}); |
| 198 | dwarf_loc_regs_t loc_regs; |
| 199 | |
| 200 | ASSERT_FALSE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2000, 0x2001, &loc_regs)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 201 | ASSERT_EQ(DWARF_ERROR_ILLEGAL_STATE, this->cfa_->LastErrorCode()); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 202 | ASSERT_EQ(0x2001U, this->dmem_->cur_offset()); |
| 203 | ASSERT_EQ(0U, loc_regs.size()); |
| 204 | |
| 205 | ASSERT_EQ("4 unwind restore while processing cie\n", GetFakeLogPrint()); |
| 206 | ASSERT_EQ("", GetFakeLogBuf()); |
| 207 | |
| 208 | ResetLogs(); |
| 209 | dwarf_loc_regs_t cie_loc_regs; |
| 210 | cie_loc_regs[2] = {.type = DWARF_LOCATION_REGISTER, .values = {0, 0}}; |
| 211 | this->cfa_->set_cie_loc_regs(&cie_loc_regs); |
| 212 | this->memory_.SetMemory(0x3000, std::vector<uint8_t>{0x82, 0x04, 0xc2}); |
| 213 | |
| 214 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x3000, 0x3003, &loc_regs)); |
| 215 | ASSERT_EQ(0x3003U, this->dmem_->cur_offset()); |
| 216 | ASSERT_EQ(1U, loc_regs.size()); |
| 217 | auto location = loc_regs.find(2); |
| 218 | ASSERT_NE(loc_regs.end(), location); |
| 219 | ASSERT_EQ(DWARF_LOCATION_REGISTER, location->second.type); |
| 220 | |
| 221 | ASSERT_EQ("", GetFakeLogPrint()); |
| 222 | ASSERT_EQ("", GetFakeLogBuf()); |
| 223 | } |
| 224 | |
| 225 | TYPED_TEST_P(DwarfCfaTest, cfa_restore_extended) { |
| 226 | this->memory_.SetMemory(0x4000, std::vector<uint8_t>{0x06, 0x08}); |
| 227 | dwarf_loc_regs_t loc_regs; |
| 228 | |
| 229 | ASSERT_FALSE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x4000, 0x4002, &loc_regs)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 230 | ASSERT_EQ(DWARF_ERROR_ILLEGAL_STATE, this->cfa_->LastErrorCode()); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 231 | ASSERT_EQ(0x4002U, this->dmem_->cur_offset()); |
| 232 | ASSERT_EQ(0U, loc_regs.size()); |
| 233 | |
| 234 | ASSERT_EQ("4 unwind restore while processing cie\n", GetFakeLogPrint()); |
| 235 | ASSERT_EQ("", GetFakeLogBuf()); |
| 236 | |
| 237 | ResetLogs(); |
| 238 | loc_regs.clear(); |
| 239 | this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x05, 0x82, 0x02, 0x04, 0x06, 0x82, 0x02}); |
| 240 | dwarf_loc_regs_t cie_loc_regs; |
| 241 | cie_loc_regs[258] = {.type = DWARF_LOCATION_REGISTER, .values = {0, 0}}; |
| 242 | this->cfa_->set_cie_loc_regs(&cie_loc_regs); |
| 243 | |
| 244 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x5000, 0x5007, &loc_regs)); |
| 245 | ASSERT_EQ(0x5007U, this->dmem_->cur_offset()); |
| 246 | ASSERT_EQ(1U, loc_regs.size()); |
| 247 | auto location = loc_regs.find(258); |
| 248 | ASSERT_NE(loc_regs.end(), location); |
| 249 | ASSERT_EQ(DWARF_LOCATION_REGISTER, location->second.type); |
| 250 | |
| 251 | ASSERT_EQ("", GetFakeLogPrint()); |
| 252 | ASSERT_EQ("", GetFakeLogBuf()); |
| 253 | } |
| 254 | |
| 255 | TYPED_TEST_P(DwarfCfaTest, cfa_set_loc) { |
| 256 | uint8_t buffer[1 + sizeof(TypeParam)]; |
| 257 | buffer[0] = 0x1; |
| 258 | TypeParam address; |
| 259 | std::string raw_data("Raw Data: 0x01 "); |
| 260 | std::string address_str; |
| 261 | if (sizeof(TypeParam) == 4) { |
| 262 | address = 0x81234578U; |
| 263 | address_str = "0x81234578"; |
| 264 | raw_data += "0x78 0x45 0x23 0x81"; |
| 265 | } else { |
| 266 | address = 0x8123456712345678ULL; |
| 267 | address_str = "0x8123456712345678"; |
| 268 | raw_data += "0x78 0x56 0x34 0x12 0x67 0x45 0x23 0x81"; |
| 269 | } |
| 270 | memcpy(&buffer[1], &address, sizeof(address)); |
| 271 | |
| 272 | this->memory_.SetMemory(0x50, buffer, sizeof(buffer)); |
| 273 | ResetLogs(); |
| 274 | dwarf_loc_regs_t loc_regs; |
| 275 | ASSERT_TRUE( |
| 276 | this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x50, 0x51 + sizeof(TypeParam), &loc_regs)); |
| 277 | ASSERT_EQ(0x51 + sizeof(TypeParam), this->dmem_->cur_offset()); |
| 278 | ASSERT_EQ(address, this->cfa_->cur_pc()); |
| 279 | ASSERT_EQ(0U, loc_regs.size()); |
| 280 | |
| 281 | ASSERT_EQ("", GetFakeLogPrint()); |
| 282 | ASSERT_EQ("", GetFakeLogBuf()); |
| 283 | |
| 284 | // Check for a set going back. |
| 285 | ResetLogs(); |
| 286 | loc_regs.clear(); |
| 287 | this->fde_.pc_start = address + 0x10; |
| 288 | ASSERT_TRUE( |
| 289 | this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x50, 0x51 + sizeof(TypeParam), &loc_regs)); |
| 290 | ASSERT_EQ(0x51 + sizeof(TypeParam), this->dmem_->cur_offset()); |
| 291 | ASSERT_EQ(address, this->cfa_->cur_pc()); |
| 292 | ASSERT_EQ(0U, loc_regs.size()); |
| 293 | |
| 294 | std::string cur_address_str(address_str); |
| 295 | cur_address_str[cur_address_str.size() - 2] = '8'; |
| 296 | std::string expected = "4 unwind Warning: PC is moving backwards: old " + cur_address_str + |
| 297 | " new " + address_str + "\n"; |
| 298 | ASSERT_EQ(expected, GetFakeLogPrint()); |
| 299 | ASSERT_EQ("", GetFakeLogBuf()); |
| 300 | } |
| 301 | |
| 302 | TYPED_TEST_P(DwarfCfaTest, cfa_advance_loc1) { |
| 303 | this->memory_.SetMemory(0x200, std::vector<uint8_t>{0x02, 0x04}); |
| 304 | dwarf_loc_regs_t loc_regs; |
| 305 | |
| 306 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x202, &loc_regs)); |
| 307 | ASSERT_EQ(0x202U, this->dmem_->cur_offset()); |
| 308 | ASSERT_EQ(this->fde_.pc_start + 0x10, this->cfa_->cur_pc()); |
| 309 | ASSERT_EQ(0U, loc_regs.size()); |
| 310 | |
| 311 | ASSERT_EQ("", GetFakeLogPrint()); |
| 312 | ASSERT_EQ("", GetFakeLogBuf()); |
| 313 | } |
| 314 | |
| 315 | TYPED_TEST_P(DwarfCfaTest, cfa_advance_loc2) { |
| 316 | this->memory_.SetMemory(0x600, std::vector<uint8_t>{0x03, 0x04, 0x03}); |
| 317 | dwarf_loc_regs_t loc_regs; |
| 318 | |
| 319 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x600, 0x603, &loc_regs)); |
| 320 | ASSERT_EQ(0x603U, this->dmem_->cur_offset()); |
| 321 | ASSERT_EQ(this->fde_.pc_start + 0xc10U, this->cfa_->cur_pc()); |
| 322 | ASSERT_EQ(0U, loc_regs.size()); |
| 323 | |
| 324 | ASSERT_EQ("", GetFakeLogPrint()); |
| 325 | ASSERT_EQ("", GetFakeLogBuf()); |
| 326 | } |
| 327 | |
| 328 | TYPED_TEST_P(DwarfCfaTest, cfa_advance_loc4) { |
| 329 | this->memory_.SetMemory(0x500, std::vector<uint8_t>{0x04, 0x04, 0x03, 0x02, 0x01}); |
| 330 | dwarf_loc_regs_t loc_regs; |
| 331 | |
| 332 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x500, 0x505, &loc_regs)); |
| 333 | ASSERT_EQ(0x505U, this->dmem_->cur_offset()); |
| 334 | ASSERT_EQ(this->fde_.pc_start + 0x4080c10, this->cfa_->cur_pc()); |
| 335 | ASSERT_EQ(0U, loc_regs.size()); |
| 336 | |
| 337 | ASSERT_EQ("", GetFakeLogPrint()); |
| 338 | ASSERT_EQ("", GetFakeLogBuf()); |
| 339 | } |
| 340 | |
| 341 | TYPED_TEST_P(DwarfCfaTest, cfa_undefined) { |
| 342 | this->memory_.SetMemory(0xa00, std::vector<uint8_t>{0x07, 0x09}); |
| 343 | dwarf_loc_regs_t loc_regs; |
| 344 | |
| 345 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0xa00, 0xa02, &loc_regs)); |
| 346 | ASSERT_EQ(0xa02U, this->dmem_->cur_offset()); |
| 347 | ASSERT_EQ(1U, loc_regs.size()); |
| 348 | auto location = loc_regs.find(9); |
| 349 | ASSERT_NE(loc_regs.end(), location); |
| 350 | ASSERT_EQ(DWARF_LOCATION_UNDEFINED, location->second.type); |
| 351 | |
| 352 | ASSERT_EQ("", GetFakeLogPrint()); |
| 353 | ASSERT_EQ("", GetFakeLogBuf()); |
| 354 | |
| 355 | ResetLogs(); |
| 356 | loc_regs.clear(); |
| 357 | this->memory_.SetMemory(0x1a00, std::vector<uint8_t>{0x07, 0x81, 0x01}); |
| 358 | |
| 359 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x1a00, 0x1a03, &loc_regs)); |
| 360 | ASSERT_EQ(0x1a03U, this->dmem_->cur_offset()); |
| 361 | ASSERT_EQ(1U, loc_regs.size()); |
| 362 | location = loc_regs.find(129); |
| 363 | ASSERT_NE(loc_regs.end(), location); |
| 364 | ASSERT_EQ(DWARF_LOCATION_UNDEFINED, location->second.type); |
| 365 | |
| 366 | ASSERT_EQ("", GetFakeLogPrint()); |
| 367 | ASSERT_EQ("", GetFakeLogBuf()); |
| 368 | } |
| 369 | |
| 370 | TYPED_TEST_P(DwarfCfaTest, cfa_same) { |
| 371 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x08, 0x7f}); |
| 372 | dwarf_loc_regs_t loc_regs; |
| 373 | |
| 374 | loc_regs[127] = {.type = DWARF_LOCATION_REGISTER, .values = {0, 0}}; |
| 375 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x102, &loc_regs)); |
| 376 | ASSERT_EQ(0x102U, this->dmem_->cur_offset()); |
| 377 | ASSERT_EQ(0U, loc_regs.size()); |
| 378 | ASSERT_EQ(0U, loc_regs.count(127)); |
| 379 | |
| 380 | ASSERT_EQ("", GetFakeLogPrint()); |
| 381 | ASSERT_EQ("", GetFakeLogBuf()); |
| 382 | |
| 383 | ResetLogs(); |
| 384 | loc_regs.clear(); |
| 385 | this->memory_.SetMemory(0x2100, std::vector<uint8_t>{0x08, 0xff, 0x01}); |
| 386 | |
| 387 | loc_regs[255] = {.type = DWARF_LOCATION_REGISTER, .values = {0, 0}}; |
| 388 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2100, 0x2103, &loc_regs)); |
| 389 | ASSERT_EQ(0x2103U, this->dmem_->cur_offset()); |
| 390 | ASSERT_EQ(0U, loc_regs.size()); |
| 391 | ASSERT_EQ(0U, loc_regs.count(255)); |
| 392 | |
| 393 | ASSERT_EQ("", GetFakeLogPrint()); |
| 394 | ASSERT_EQ("", GetFakeLogBuf()); |
| 395 | } |
| 396 | |
| 397 | TYPED_TEST_P(DwarfCfaTest, cfa_register) { |
| 398 | this->memory_.SetMemory(0x300, std::vector<uint8_t>{0x09, 0x02, 0x01}); |
| 399 | dwarf_loc_regs_t loc_regs; |
| 400 | |
| 401 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x300, 0x303, &loc_regs)); |
| 402 | ASSERT_EQ(0x303U, this->dmem_->cur_offset()); |
| 403 | ASSERT_EQ(1U, loc_regs.size()); |
| 404 | auto location = loc_regs.find(2); |
| 405 | ASSERT_NE(loc_regs.end(), location); |
| 406 | ASSERT_EQ(DWARF_LOCATION_REGISTER, location->second.type); |
| 407 | ASSERT_EQ(1U, location->second.values[0]); |
| 408 | |
| 409 | ASSERT_EQ("", GetFakeLogPrint()); |
| 410 | ASSERT_EQ("", GetFakeLogBuf()); |
| 411 | |
| 412 | ResetLogs(); |
| 413 | loc_regs.clear(); |
| 414 | this->memory_.SetMemory(0x4300, std::vector<uint8_t>{0x09, 0xff, 0x01, 0xff, 0x03}); |
| 415 | |
| 416 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x4300, 0x4305, &loc_regs)); |
| 417 | ASSERT_EQ(0x4305U, this->dmem_->cur_offset()); |
| 418 | ASSERT_EQ(1U, loc_regs.size()); |
| 419 | location = loc_regs.find(255); |
| 420 | ASSERT_NE(loc_regs.end(), location); |
| 421 | ASSERT_EQ(DWARF_LOCATION_REGISTER, location->second.type); |
| 422 | ASSERT_EQ(511U, location->second.values[0]); |
| 423 | |
| 424 | ASSERT_EQ("", GetFakeLogPrint()); |
| 425 | ASSERT_EQ("", GetFakeLogBuf()); |
| 426 | } |
| 427 | |
| 428 | TYPED_TEST_P(DwarfCfaTest, cfa_state) { |
| 429 | this->memory_.SetMemory(0x300, std::vector<uint8_t>{0x0a}); |
| 430 | dwarf_loc_regs_t loc_regs; |
| 431 | |
| 432 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x300, 0x301, &loc_regs)); |
| 433 | ASSERT_EQ(0x301U, this->dmem_->cur_offset()); |
| 434 | ASSERT_EQ(0U, loc_regs.size()); |
| 435 | |
| 436 | ASSERT_EQ("", GetFakeLogPrint()); |
| 437 | ASSERT_EQ("", GetFakeLogBuf()); |
| 438 | |
| 439 | ResetLogs(); |
| 440 | this->memory_.SetMemory(0x4300, std::vector<uint8_t>{0x0b}); |
| 441 | |
| 442 | loc_regs.clear(); |
| 443 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x4300, 0x4301, &loc_regs)); |
| 444 | ASSERT_EQ(0x4301U, this->dmem_->cur_offset()); |
| 445 | ASSERT_EQ(0U, loc_regs.size()); |
| 446 | |
| 447 | ASSERT_EQ("", GetFakeLogPrint()); |
| 448 | ASSERT_EQ("", GetFakeLogBuf()); |
| 449 | |
| 450 | ResetLogs(); |
| 451 | this->memory_.SetMemory(0x2000, std::vector<uint8_t>{0x85, 0x02, 0x0a, 0x86, 0x04, 0x0b}); |
| 452 | |
| 453 | loc_regs.clear(); |
| 454 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2000, 0x2005, &loc_regs)); |
| 455 | ASSERT_EQ(0x2005U, this->dmem_->cur_offset()); |
| 456 | ASSERT_EQ(2U, loc_regs.size()); |
| 457 | ASSERT_NE(loc_regs.end(), loc_regs.find(5)); |
| 458 | ASSERT_NE(loc_regs.end(), loc_regs.find(6)); |
| 459 | |
| 460 | loc_regs.clear(); |
| 461 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2000, 0x2006, &loc_regs)); |
| 462 | ASSERT_EQ(0x2006U, this->dmem_->cur_offset()); |
| 463 | ASSERT_EQ(1U, loc_regs.size()); |
| 464 | ASSERT_NE(loc_regs.end(), loc_regs.find(5)); |
| 465 | |
| 466 | ResetLogs(); |
| 467 | this->memory_.SetMemory( |
| 468 | 0x6000, std::vector<uint8_t>{0x0a, 0x85, 0x02, 0x0a, 0x86, 0x04, 0x0a, 0x87, 0x01, 0x0a, 0x89, |
| 469 | 0x05, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b}); |
| 470 | |
| 471 | loc_regs.clear(); |
| 472 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x6000, 0x600c, &loc_regs)); |
| 473 | ASSERT_EQ(0x600cU, this->dmem_->cur_offset()); |
| 474 | ASSERT_EQ(4U, loc_regs.size()); |
| 475 | ASSERT_NE(loc_regs.end(), loc_regs.find(5)); |
| 476 | ASSERT_NE(loc_regs.end(), loc_regs.find(6)); |
| 477 | ASSERT_NE(loc_regs.end(), loc_regs.find(7)); |
| 478 | ASSERT_NE(loc_regs.end(), loc_regs.find(9)); |
| 479 | |
| 480 | loc_regs.clear(); |
| 481 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x6000, 0x600d, &loc_regs)); |
| 482 | ASSERT_EQ(0x600dU, this->dmem_->cur_offset()); |
| 483 | ASSERT_EQ(3U, loc_regs.size()); |
| 484 | ASSERT_NE(loc_regs.end(), loc_regs.find(5)); |
| 485 | ASSERT_NE(loc_regs.end(), loc_regs.find(6)); |
| 486 | ASSERT_NE(loc_regs.end(), loc_regs.find(7)); |
| 487 | |
| 488 | loc_regs.clear(); |
| 489 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x6000, 0x600e, &loc_regs)); |
| 490 | ASSERT_EQ(0x600eU, this->dmem_->cur_offset()); |
| 491 | ASSERT_EQ(2U, loc_regs.size()); |
| 492 | ASSERT_NE(loc_regs.end(), loc_regs.find(5)); |
| 493 | ASSERT_NE(loc_regs.end(), loc_regs.find(6)); |
| 494 | |
| 495 | loc_regs.clear(); |
| 496 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x6000, 0x600f, &loc_regs)); |
| 497 | ASSERT_EQ(0x600fU, this->dmem_->cur_offset()); |
| 498 | ASSERT_EQ(1U, loc_regs.size()); |
| 499 | ASSERT_NE(loc_regs.end(), loc_regs.find(5)); |
| 500 | |
| 501 | loc_regs.clear(); |
| 502 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x6000, 0x6010, &loc_regs)); |
| 503 | ASSERT_EQ(0x6010U, this->dmem_->cur_offset()); |
| 504 | ASSERT_EQ(0U, loc_regs.size()); |
| 505 | |
| 506 | loc_regs.clear(); |
| 507 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x6000, 0x6011, &loc_regs)); |
| 508 | ASSERT_EQ(0x6011U, this->dmem_->cur_offset()); |
| 509 | ASSERT_EQ(0U, loc_regs.size()); |
| 510 | } |
| 511 | |
| 512 | // This test verifies that the cfa offset is saved and restored properly. |
| 513 | // Even though the spec is not clear about whether the offset is also |
| 514 | // restored, the gcc unwinder does, and libunwind does too. |
| 515 | TYPED_TEST_P(DwarfCfaTest, cfa_state_cfa_offset_restore) { |
| 516 | this->memory_.SetMemory(0x3000, std::vector<uint8_t>{0x0a, 0x0e, 0x40, 0x0b}); |
| 517 | dwarf_loc_regs_t loc_regs; |
| 518 | loc_regs[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {5, 100}}; |
| 519 | |
| 520 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x3000, 0x3004, &loc_regs)); |
| 521 | ASSERT_EQ(0x3004U, this->dmem_->cur_offset()); |
| 522 | ASSERT_EQ(1U, loc_regs.size()); |
| 523 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 524 | ASSERT_EQ(5U, loc_regs[CFA_REG].values[0]); |
| 525 | ASSERT_EQ(100U, loc_regs[CFA_REG].values[1]); |
| 526 | |
| 527 | ASSERT_EQ("", GetFakeLogPrint()); |
| 528 | ASSERT_EQ("", GetFakeLogBuf()); |
| 529 | } |
| 530 | |
| 531 | TYPED_TEST_P(DwarfCfaTest, cfa_def_cfa) { |
| 532 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x0c, 0x7f, 0x74}); |
| 533 | dwarf_loc_regs_t loc_regs; |
| 534 | |
| 535 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x103, &loc_regs)); |
| 536 | ASSERT_EQ(0x103U, this->dmem_->cur_offset()); |
| 537 | ASSERT_EQ(1U, loc_regs.size()); |
| 538 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 539 | ASSERT_EQ(0x7fU, loc_regs[CFA_REG].values[0]); |
| 540 | ASSERT_EQ(0x74U, loc_regs[CFA_REG].values[1]); |
| 541 | |
| 542 | ASSERT_EQ("", GetFakeLogPrint()); |
| 543 | ASSERT_EQ("", GetFakeLogBuf()); |
| 544 | |
| 545 | ResetLogs(); |
| 546 | loc_regs.clear(); |
| 547 | this->memory_.SetMemory(0x200, std::vector<uint8_t>{0x0c, 0xff, 0x02, 0xf4, 0x04}); |
| 548 | |
| 549 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x205, &loc_regs)); |
| 550 | ASSERT_EQ(0x205U, this->dmem_->cur_offset()); |
| 551 | ASSERT_EQ(1U, loc_regs.size()); |
| 552 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 553 | ASSERT_EQ(0x17fU, loc_regs[CFA_REG].values[0]); |
| 554 | ASSERT_EQ(0x274U, loc_regs[CFA_REG].values[1]); |
| 555 | |
| 556 | ASSERT_EQ("", GetFakeLogPrint()); |
| 557 | ASSERT_EQ("", GetFakeLogBuf()); |
| 558 | } |
| 559 | |
| 560 | TYPED_TEST_P(DwarfCfaTest, cfa_def_cfa_sf) { |
| 561 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x12, 0x30, 0x25}); |
| 562 | dwarf_loc_regs_t loc_regs; |
| 563 | |
| 564 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x103, &loc_regs)); |
| 565 | ASSERT_EQ(0x103U, this->dmem_->cur_offset()); |
| 566 | ASSERT_EQ(1U, loc_regs.size()); |
| 567 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 568 | ASSERT_EQ(0x30U, loc_regs[CFA_REG].values[0]); |
| 569 | ASSERT_EQ(0x128U, loc_regs[CFA_REG].values[1]); |
| 570 | |
| 571 | ASSERT_EQ("", GetFakeLogPrint()); |
| 572 | ASSERT_EQ("", GetFakeLogBuf()); |
| 573 | |
| 574 | // Test a negative value. |
| 575 | ResetLogs(); |
| 576 | loc_regs.clear(); |
| 577 | this->memory_.SetMemory(0x200, std::vector<uint8_t>{0x12, 0xa3, 0x01, 0xfa, 0x7f}); |
| 578 | |
| 579 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x205, &loc_regs)); |
| 580 | ASSERT_EQ(0x205U, this->dmem_->cur_offset()); |
| 581 | ASSERT_EQ(1U, loc_regs.size()); |
| 582 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 583 | ASSERT_EQ(0xa3U, loc_regs[CFA_REG].values[0]); |
| 584 | ASSERT_EQ(static_cast<uint64_t>(-48), loc_regs[CFA_REG].values[1]); |
| 585 | |
| 586 | ASSERT_EQ("", GetFakeLogPrint()); |
| 587 | ASSERT_EQ("", GetFakeLogBuf()); |
| 588 | } |
| 589 | |
| 590 | TYPED_TEST_P(DwarfCfaTest, cfa_def_cfa_register) { |
| 591 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x0d, 0x72}); |
| 592 | dwarf_loc_regs_t loc_regs; |
| 593 | |
| 594 | // This fails because the cfa is not defined as a register. |
| 595 | ASSERT_FALSE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x102, &loc_regs)); |
| 596 | ASSERT_EQ(0U, loc_regs.size()); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 597 | ASSERT_EQ(DWARF_ERROR_ILLEGAL_STATE, this->cfa_->LastErrorCode()); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 598 | |
| 599 | ASSERT_EQ("4 unwind Attempt to set new register, but cfa is not already set to a register.\n", |
| 600 | GetFakeLogPrint()); |
| 601 | ASSERT_EQ("", GetFakeLogBuf()); |
| 602 | |
| 603 | ResetLogs(); |
| 604 | loc_regs.clear(); |
| 605 | loc_regs[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {3, 20}}; |
| 606 | |
| 607 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x102, &loc_regs)); |
| 608 | ASSERT_EQ(0x102U, this->dmem_->cur_offset()); |
| 609 | ASSERT_EQ(1U, loc_regs.size()); |
| 610 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 611 | ASSERT_EQ(0x72U, loc_regs[CFA_REG].values[0]); |
| 612 | ASSERT_EQ(20U, loc_regs[CFA_REG].values[1]); |
| 613 | |
| 614 | ASSERT_EQ("", GetFakeLogPrint()); |
| 615 | ASSERT_EQ("", GetFakeLogBuf()); |
| 616 | |
| 617 | ResetLogs(); |
| 618 | this->memory_.SetMemory(0x200, std::vector<uint8_t>{0x0d, 0xf9, 0x20}); |
| 619 | loc_regs.clear(); |
| 620 | loc_regs[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {3, 60}}; |
| 621 | |
| 622 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x203, &loc_regs)); |
| 623 | ASSERT_EQ(0x203U, this->dmem_->cur_offset()); |
| 624 | ASSERT_EQ(1U, loc_regs.size()); |
| 625 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 626 | ASSERT_EQ(0x1079U, loc_regs[CFA_REG].values[0]); |
| 627 | ASSERT_EQ(60U, loc_regs[CFA_REG].values[1]); |
| 628 | |
| 629 | ASSERT_EQ("", GetFakeLogPrint()); |
| 630 | ASSERT_EQ("", GetFakeLogBuf()); |
| 631 | } |
| 632 | |
| 633 | TYPED_TEST_P(DwarfCfaTest, cfa_def_cfa_offset) { |
| 634 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x0e, 0x59}); |
| 635 | dwarf_loc_regs_t loc_regs; |
| 636 | |
| 637 | // This fails because the cfa is not defined as a register. |
| 638 | ASSERT_FALSE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x102, &loc_regs)); |
| 639 | ASSERT_EQ(0U, loc_regs.size()); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 640 | ASSERT_EQ(DWARF_ERROR_ILLEGAL_STATE, this->cfa_->LastErrorCode()); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 641 | |
| 642 | ASSERT_EQ("4 unwind Attempt to set offset, but cfa is not set to a register.\n", |
| 643 | GetFakeLogPrint()); |
| 644 | ASSERT_EQ("", GetFakeLogBuf()); |
| 645 | |
| 646 | ResetLogs(); |
| 647 | loc_regs.clear(); |
| 648 | loc_regs[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {3}}; |
| 649 | |
| 650 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x102, &loc_regs)); |
| 651 | ASSERT_EQ(0x102U, this->dmem_->cur_offset()); |
| 652 | ASSERT_EQ(1U, loc_regs.size()); |
| 653 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 654 | ASSERT_EQ(3U, loc_regs[CFA_REG].values[0]); |
| 655 | ASSERT_EQ(0x59U, loc_regs[CFA_REG].values[1]); |
| 656 | |
| 657 | ASSERT_EQ("", GetFakeLogPrint()); |
| 658 | ASSERT_EQ("", GetFakeLogBuf()); |
| 659 | |
| 660 | ResetLogs(); |
| 661 | this->memory_.SetMemory(0x200, std::vector<uint8_t>{0x0e, 0xd4, 0x0a}); |
| 662 | loc_regs.clear(); |
| 663 | loc_regs[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {3}}; |
| 664 | |
| 665 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x203, &loc_regs)); |
| 666 | ASSERT_EQ(0x203U, this->dmem_->cur_offset()); |
| 667 | ASSERT_EQ(1U, loc_regs.size()); |
| 668 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 669 | ASSERT_EQ(3U, loc_regs[CFA_REG].values[0]); |
| 670 | ASSERT_EQ(0x554U, loc_regs[CFA_REG].values[1]); |
| 671 | |
| 672 | ASSERT_EQ("", GetFakeLogPrint()); |
| 673 | ASSERT_EQ("", GetFakeLogBuf()); |
| 674 | } |
| 675 | |
| 676 | TYPED_TEST_P(DwarfCfaTest, cfa_def_cfa_offset_sf) { |
| 677 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x13, 0x23}); |
| 678 | dwarf_loc_regs_t loc_regs; |
| 679 | |
| 680 | // This fails because the cfa is not defined as a register. |
| 681 | ASSERT_FALSE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x102, &loc_regs)); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 682 | ASSERT_EQ(DWARF_ERROR_ILLEGAL_STATE, this->cfa_->LastErrorCode()); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 683 | |
| 684 | ASSERT_EQ("4 unwind Attempt to set offset, but cfa is not set to a register.\n", |
| 685 | GetFakeLogPrint()); |
| 686 | ASSERT_EQ("", GetFakeLogBuf()); |
| 687 | |
| 688 | ResetLogs(); |
| 689 | loc_regs.clear(); |
| 690 | loc_regs[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {3}}; |
| 691 | |
| 692 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x102, &loc_regs)); |
| 693 | ASSERT_EQ(0x102U, this->dmem_->cur_offset()); |
| 694 | ASSERT_EQ(1U, loc_regs.size()); |
| 695 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 696 | ASSERT_EQ(3U, loc_regs[CFA_REG].values[0]); |
| 697 | ASSERT_EQ(0x118U, loc_regs[CFA_REG].values[1]); |
| 698 | |
| 699 | ASSERT_EQ("", GetFakeLogPrint()); |
| 700 | ASSERT_EQ("", GetFakeLogBuf()); |
| 701 | |
| 702 | // Negative offset. |
| 703 | ResetLogs(); |
| 704 | this->memory_.SetMemory(0x200, std::vector<uint8_t>{0x13, 0xf6, 0x7f}); |
| 705 | loc_regs.clear(); |
| 706 | loc_regs[CFA_REG] = {.type = DWARF_LOCATION_REGISTER, .values = {3}}; |
| 707 | |
| 708 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x203, &loc_regs)); |
| 709 | ASSERT_EQ(0x203U, this->dmem_->cur_offset()); |
| 710 | ASSERT_EQ(1U, loc_regs.size()); |
| 711 | ASSERT_EQ(DWARF_LOCATION_REGISTER, loc_regs[CFA_REG].type); |
| 712 | ASSERT_EQ(3U, loc_regs[CFA_REG].values[0]); |
| 713 | ASSERT_EQ(static_cast<TypeParam>(-80), static_cast<TypeParam>(loc_regs[CFA_REG].values[1])); |
| 714 | |
| 715 | ASSERT_EQ("", GetFakeLogPrint()); |
| 716 | ASSERT_EQ("", GetFakeLogBuf()); |
| 717 | } |
| 718 | |
| 719 | TYPED_TEST_P(DwarfCfaTest, cfa_def_cfa_expression) { |
| 720 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x0f, 0x04, 0x01, 0x02, 0x03, 0x04}); |
| 721 | dwarf_loc_regs_t loc_regs; |
| 722 | |
| 723 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x106, &loc_regs)); |
| 724 | ASSERT_EQ(0x106U, this->dmem_->cur_offset()); |
| 725 | ASSERT_EQ(1U, loc_regs.size()); |
| 726 | |
| 727 | ASSERT_EQ("", GetFakeLogPrint()); |
| 728 | ASSERT_EQ("", GetFakeLogBuf()); |
| 729 | |
| 730 | ResetLogs(); |
| 731 | std::vector<uint8_t> ops{0x0f, 0x81, 0x01}; |
| 732 | for (uint8_t i = 3; i < 132; i++) { |
| 733 | ops.push_back(i - 1); |
| 734 | } |
| 735 | this->memory_.SetMemory(0x200, ops); |
| 736 | loc_regs.clear(); |
| 737 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x284, &loc_regs)); |
| 738 | ASSERT_EQ(0x284U, this->dmem_->cur_offset()); |
| 739 | ASSERT_EQ(1U, loc_regs.size()); |
David Srbecky | 3692f25 | 2018-03-08 16:57:19 +0000 | [diff] [blame] | 740 | ASSERT_EQ(DWARF_LOCATION_VAL_EXPRESSION, loc_regs[CFA_REG].type); |
| 741 | ASSERT_EQ(0x81U, loc_regs[CFA_REG].values[0]); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 742 | |
| 743 | ASSERT_EQ("", GetFakeLogPrint()); |
| 744 | ASSERT_EQ("", GetFakeLogBuf()); |
| 745 | } |
| 746 | |
| 747 | TYPED_TEST_P(DwarfCfaTest, cfa_expression) { |
| 748 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x10, 0x04, 0x02, 0x40, 0x20}); |
| 749 | dwarf_loc_regs_t loc_regs; |
| 750 | |
| 751 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x105, &loc_regs)); |
| 752 | ASSERT_EQ(0x105U, this->dmem_->cur_offset()); |
| 753 | ASSERT_EQ(1U, loc_regs.size()); |
| 754 | auto location = loc_regs.find(4); |
| 755 | ASSERT_NE(loc_regs.end(), location); |
| 756 | ASSERT_EQ(DWARF_LOCATION_EXPRESSION, location->second.type); |
| 757 | ASSERT_EQ(2U, location->second.values[0]); |
| 758 | ASSERT_EQ(0x105U, location->second.values[1]); |
| 759 | |
| 760 | ASSERT_EQ("", GetFakeLogPrint()); |
| 761 | ASSERT_EQ("", GetFakeLogBuf()); |
| 762 | |
| 763 | ResetLogs(); |
| 764 | std::vector<uint8_t> ops{0x10, 0xff, 0x01, 0x82, 0x01}; |
| 765 | for (uint8_t i = 5; i < 135; i++) { |
| 766 | ops.push_back(i - 4); |
| 767 | } |
| 768 | |
| 769 | this->memory_.SetMemory(0x200, ops); |
| 770 | loc_regs.clear(); |
| 771 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x200, 0x287, &loc_regs)); |
| 772 | ASSERT_EQ(0x287U, this->dmem_->cur_offset()); |
| 773 | ASSERT_EQ(1U, loc_regs.size()); |
| 774 | location = loc_regs.find(255); |
| 775 | ASSERT_NE(loc_regs.end(), location); |
| 776 | ASSERT_EQ(DWARF_LOCATION_EXPRESSION, location->second.type); |
| 777 | ASSERT_EQ(130U, location->second.values[0]); |
| 778 | ASSERT_EQ(0x287U, location->second.values[1]); |
| 779 | |
| 780 | ASSERT_EQ("", GetFakeLogPrint()); |
| 781 | ASSERT_EQ("", GetFakeLogBuf()); |
| 782 | } |
| 783 | |
| 784 | TYPED_TEST_P(DwarfCfaTest, cfa_val_offset) { |
| 785 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x14, 0x45, 0x54}); |
| 786 | dwarf_loc_regs_t loc_regs; |
| 787 | |
| 788 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x103, &loc_regs)); |
| 789 | ASSERT_EQ(0x103U, this->dmem_->cur_offset()); |
| 790 | ASSERT_EQ(1U, loc_regs.size()); |
| 791 | auto location = loc_regs.find(69); |
| 792 | ASSERT_NE(loc_regs.end(), location); |
| 793 | ASSERT_EQ(DWARF_LOCATION_VAL_OFFSET, location->second.type); |
| 794 | ASSERT_EQ(0x2a0U, location->second.values[0]); |
| 795 | |
| 796 | ASSERT_EQ("", GetFakeLogPrint()); |
| 797 | ASSERT_EQ("", GetFakeLogBuf()); |
| 798 | |
| 799 | ResetLogs(); |
| 800 | loc_regs.clear(); |
| 801 | this->memory_.SetMemory(0x400, std::vector<uint8_t>{0x14, 0xa2, 0x02, 0xb4, 0x05}); |
| 802 | |
| 803 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x400, 0x405, &loc_regs)); |
| 804 | ASSERT_EQ(0x405U, this->dmem_->cur_offset()); |
| 805 | ASSERT_EQ(1U, loc_regs.size()); |
| 806 | location = loc_regs.find(290); |
| 807 | ASSERT_NE(loc_regs.end(), location); |
| 808 | ASSERT_EQ(DWARF_LOCATION_VAL_OFFSET, location->second.type); |
| 809 | ASSERT_EQ(0x15a0U, location->second.values[0]); |
| 810 | |
| 811 | ASSERT_EQ("", GetFakeLogPrint()); |
| 812 | ASSERT_EQ("", GetFakeLogBuf()); |
| 813 | } |
| 814 | |
| 815 | TYPED_TEST_P(DwarfCfaTest, cfa_val_offset_sf) { |
| 816 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x15, 0x56, 0x12}); |
| 817 | dwarf_loc_regs_t loc_regs; |
| 818 | |
| 819 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x103, &loc_regs)); |
| 820 | ASSERT_EQ(0x103U, this->dmem_->cur_offset()); |
| 821 | ASSERT_EQ(1U, loc_regs.size()); |
| 822 | auto location = loc_regs.find(86); |
| 823 | ASSERT_NE(loc_regs.end(), location); |
| 824 | ASSERT_EQ(DWARF_LOCATION_VAL_OFFSET, location->second.type); |
| 825 | ASSERT_EQ(0x90U, location->second.values[0]); |
| 826 | |
| 827 | ASSERT_EQ("", GetFakeLogPrint()); |
| 828 | ASSERT_EQ("", GetFakeLogBuf()); |
| 829 | |
| 830 | // Negative value. |
| 831 | ResetLogs(); |
| 832 | loc_regs.clear(); |
| 833 | this->memory_.SetMemory(0xa00, std::vector<uint8_t>{0x15, 0xff, 0x01, 0xc0, 0x7f}); |
| 834 | |
| 835 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0xa00, 0xa05, &loc_regs)); |
| 836 | ASSERT_EQ(0xa05U, this->dmem_->cur_offset()); |
| 837 | ASSERT_EQ(1U, loc_regs.size()); |
| 838 | location = loc_regs.find(255); |
| 839 | ASSERT_NE(loc_regs.end(), location); |
| 840 | ASSERT_EQ(DWARF_LOCATION_VAL_OFFSET, location->second.type); |
| 841 | ASSERT_EQ(static_cast<uint64_t>(-512), location->second.values[0]); |
| 842 | |
| 843 | ASSERT_EQ("", GetFakeLogPrint()); |
| 844 | ASSERT_EQ("", GetFakeLogBuf()); |
| 845 | } |
| 846 | |
| 847 | TYPED_TEST_P(DwarfCfaTest, cfa_val_expression) { |
| 848 | this->memory_.SetMemory(0x100, std::vector<uint8_t>{0x16, 0x05, 0x02, 0x10, 0x20}); |
| 849 | dwarf_loc_regs_t loc_regs; |
| 850 | |
| 851 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x100, 0x105, &loc_regs)); |
| 852 | ASSERT_EQ(0x105U, this->dmem_->cur_offset()); |
| 853 | ASSERT_EQ(1U, loc_regs.size()); |
| 854 | auto location = loc_regs.find(5); |
| 855 | ASSERT_NE(loc_regs.end(), location); |
| 856 | ASSERT_EQ(DWARF_LOCATION_VAL_EXPRESSION, location->second.type); |
| 857 | ASSERT_EQ(2U, location->second.values[0]); |
| 858 | ASSERT_EQ(0x105U, location->second.values[1]); |
| 859 | |
| 860 | ASSERT_EQ("", GetFakeLogPrint()); |
| 861 | ASSERT_EQ("", GetFakeLogBuf()); |
| 862 | |
| 863 | ResetLogs(); |
| 864 | std::vector<uint8_t> ops{0x16, 0x83, 0x10, 0xa8, 0x01}; |
| 865 | for (uint8_t i = 0; i < 168; i++) { |
| 866 | ops.push_back(i); |
| 867 | } |
| 868 | |
| 869 | this->memory_.SetMemory(0xa00, ops); |
| 870 | loc_regs.clear(); |
| 871 | |
| 872 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0xa00, 0xaad, &loc_regs)); |
| 873 | ASSERT_EQ(0xaadU, this->dmem_->cur_offset()); |
| 874 | ASSERT_EQ(1U, loc_regs.size()); |
| 875 | location = loc_regs.find(2051); |
| 876 | ASSERT_NE(loc_regs.end(), location); |
| 877 | ASSERT_EQ(DWARF_LOCATION_VAL_EXPRESSION, location->second.type); |
| 878 | ASSERT_EQ(168U, location->second.values[0]); |
| 879 | ASSERT_EQ(0xaadU, location->second.values[1]); |
| 880 | |
| 881 | ASSERT_EQ("", GetFakeLogPrint()); |
| 882 | ASSERT_EQ("", GetFakeLogBuf()); |
| 883 | } |
| 884 | |
| 885 | TYPED_TEST_P(DwarfCfaTest, cfa_gnu_args_size) { |
| 886 | this->memory_.SetMemory(0x2000, std::vector<uint8_t>{0x2e, 0x04}); |
| 887 | dwarf_loc_regs_t loc_regs; |
| 888 | |
| 889 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x2000, 0x2002, &loc_regs)); |
| 890 | ASSERT_EQ(0x2002U, this->dmem_->cur_offset()); |
| 891 | ASSERT_EQ(0U, loc_regs.size()); |
| 892 | |
| 893 | ASSERT_EQ("", GetFakeLogPrint()); |
| 894 | ASSERT_EQ("", GetFakeLogBuf()); |
| 895 | |
| 896 | ResetLogs(); |
| 897 | loc_regs.clear(); |
| 898 | this->memory_.SetMemory(0x5000, std::vector<uint8_t>{0x2e, 0xa4, 0x80, 0x04}); |
| 899 | |
| 900 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x5000, 0x5004, &loc_regs)); |
| 901 | ASSERT_EQ(0x5004U, this->dmem_->cur_offset()); |
| 902 | ASSERT_EQ(0U, loc_regs.size()); |
| 903 | |
| 904 | ASSERT_EQ("", GetFakeLogPrint()); |
| 905 | ASSERT_EQ("", GetFakeLogBuf()); |
| 906 | } |
| 907 | |
| 908 | TYPED_TEST_P(DwarfCfaTest, cfa_gnu_negative_offset_extended) { |
| 909 | this->memory_.SetMemory(0x500, std::vector<uint8_t>{0x2f, 0x08, 0x10}); |
| 910 | dwarf_loc_regs_t loc_regs; |
| 911 | |
| 912 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x500, 0x503, &loc_regs)); |
| 913 | ASSERT_EQ(0x503U, this->dmem_->cur_offset()); |
| 914 | ASSERT_EQ(1U, loc_regs.size()); |
| 915 | auto location = loc_regs.find(8); |
| 916 | ASSERT_NE(loc_regs.end(), location); |
| 917 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 918 | ASSERT_EQ(static_cast<uint64_t>(-16), location->second.values[0]); |
| 919 | |
| 920 | ASSERT_EQ("", GetFakeLogPrint()); |
| 921 | ASSERT_EQ("", GetFakeLogBuf()); |
| 922 | |
| 923 | ResetLogs(); |
| 924 | loc_regs.clear(); |
| 925 | this->memory_.SetMemory(0x1500, std::vector<uint8_t>{0x2f, 0x81, 0x02, 0xff, 0x01}); |
| 926 | |
| 927 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x1500, 0x1505, &loc_regs)); |
| 928 | ASSERT_EQ(0x1505U, this->dmem_->cur_offset()); |
| 929 | ASSERT_EQ(1U, loc_regs.size()); |
| 930 | location = loc_regs.find(257); |
| 931 | ASSERT_NE(loc_regs.end(), location); |
| 932 | ASSERT_EQ(DWARF_LOCATION_OFFSET, location->second.type); |
| 933 | ASSERT_EQ(static_cast<uint64_t>(-255), location->second.values[0]); |
| 934 | |
| 935 | ASSERT_EQ("", GetFakeLogPrint()); |
| 936 | ASSERT_EQ("", GetFakeLogBuf()); |
| 937 | } |
| 938 | |
| 939 | TYPED_TEST_P(DwarfCfaTest, cfa_register_override) { |
| 940 | this->memory_.SetMemory(0x300, std::vector<uint8_t>{0x09, 0x02, 0x01, 0x09, 0x02, 0x04}); |
| 941 | dwarf_loc_regs_t loc_regs; |
| 942 | |
| 943 | ASSERT_TRUE(this->cfa_->GetLocationInfo(this->fde_.pc_start, 0x300, 0x306, &loc_regs)); |
| 944 | ASSERT_EQ(0x306U, this->dmem_->cur_offset()); |
| 945 | ASSERT_EQ(1U, loc_regs.size()); |
| 946 | auto location = loc_regs.find(2); |
| 947 | ASSERT_NE(loc_regs.end(), location); |
| 948 | ASSERT_EQ(DWARF_LOCATION_REGISTER, location->second.type); |
| 949 | ASSERT_EQ(4U, location->second.values[0]); |
| 950 | |
| 951 | ASSERT_EQ("", GetFakeLogPrint()); |
| 952 | ASSERT_EQ("", GetFakeLogBuf()); |
| 953 | } |
| 954 | |
Christopher Ferris | 7e21eba | 2019-06-20 16:16:42 -0700 | [diff] [blame] | 955 | REGISTER_TYPED_TEST_SUITE_P(DwarfCfaTest, cfa_illegal, cfa_nop, cfa_offset, cfa_offset_extended, |
| 956 | cfa_offset_extended_sf, cfa_restore, cfa_restore_extended, cfa_set_loc, |
| 957 | cfa_advance_loc1, cfa_advance_loc2, cfa_advance_loc4, cfa_undefined, |
| 958 | cfa_same, cfa_register, cfa_state, cfa_state_cfa_offset_restore, |
| 959 | cfa_def_cfa, cfa_def_cfa_sf, cfa_def_cfa_register, cfa_def_cfa_offset, |
| 960 | cfa_def_cfa_offset_sf, cfa_def_cfa_expression, cfa_expression, |
| 961 | cfa_val_offset, cfa_val_offset_sf, cfa_val_expression, |
| 962 | cfa_gnu_args_size, cfa_gnu_negative_offset_extended, |
| 963 | cfa_register_override); |
Christopher Ferris | 8642fcb | 2017-04-24 11:14:39 -0700 | [diff] [blame] | 964 | |
| 965 | typedef ::testing::Types<uint32_t, uint64_t> DwarfCfaTestTypes; |
Christopher Ferris | 7e21eba | 2019-06-20 16:16:42 -0700 | [diff] [blame] | 966 | INSTANTIATE_TYPED_TEST_SUITE_P(, DwarfCfaTest, DwarfCfaTestTypes); |
Christopher Ferris | d226a51 | 2017-07-14 10:37:19 -0700 | [diff] [blame] | 967 | |
| 968 | } // namespace unwindstack |