Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 <elf.h> |
| 18 | #include <stdint.h> |
| 19 | #include <sys/mman.h> |
| 20 | |
| 21 | #include <memory> |
| 22 | #include <set> |
| 23 | #include <string> |
| 24 | |
| 25 | #include <gtest/gtest.h> |
| 26 | |
| 27 | #include <unwindstack/Elf.h> |
| 28 | #include <unwindstack/Maps.h> |
| 29 | #include <unwindstack/Memory.h> |
| 30 | #include <unwindstack/Regs.h> |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 31 | #include <unwindstack/RegsArm.h> |
| 32 | #include <unwindstack/RegsArm64.h> |
| 33 | #include <unwindstack/RegsX86.h> |
| 34 | #include <unwindstack/RegsX86_64.h> |
Douglas Leung | 61b1a1a | 2017-11-08 10:53:53 +0100 | [diff] [blame] | 35 | #include <unwindstack/RegsMips.h> |
| 36 | #include <unwindstack/RegsMips64.h> |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 37 | #include <unwindstack/Unwinder.h> |
| 38 | |
| 39 | #include "ElfFake.h" |
| 40 | #include "MemoryFake.h" |
| 41 | #include "RegsFake.h" |
| 42 | |
| 43 | namespace unwindstack { |
| 44 | |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 45 | class UnwinderTest : public ::testing::Test { |
| 46 | protected: |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 47 | static void AddMapInfo(uint64_t start, uint64_t end, uint64_t offset, uint64_t flags, |
| 48 | const char* name, Elf* elf = nullptr) { |
| 49 | std::string str_name(name); |
| 50 | maps_->Add(start, end, offset, flags, name, static_cast<uint64_t>(-1)); |
| 51 | if (elf != nullptr) { |
Florian Mayer | 3d67d34 | 2019-02-27 18:00:37 +0000 | [diff] [blame] | 52 | const auto& map_info = *--maps_->end(); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 53 | map_info->elf.reset(elf); |
| 54 | } |
| 55 | } |
| 56 | |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 57 | static void SetUpTestCase() { |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 58 | maps_.reset(new Maps); |
| 59 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 60 | ElfFake* elf = new ElfFake(new MemoryFake); |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 61 | ElfInterfaceFake* interface_fake = new ElfInterfaceFake(nullptr); |
| 62 | interface_fake->FakeSetBuildID("FAKE"); |
| 63 | elf->FakeSetInterface(interface_fake); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 64 | AddMapInfo(0x1000, 0x8000, 0, PROT_READ | PROT_WRITE, "/system/fake/libc.so", elf); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 65 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 66 | AddMapInfo(0x10000, 0x12000, 0, PROT_READ | PROT_WRITE, "[stack]"); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 67 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 68 | AddMapInfo(0x13000, 0x15000, 0, PROT_READ | PROT_WRITE | MAPS_FLAGS_DEVICE_MAP, |
| 69 | "/dev/fake_device"); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 70 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 71 | elf = new ElfFake(new MemoryFake); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 72 | elf->FakeSetInterface(new ElfInterfaceFake(nullptr)); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 73 | AddMapInfo(0x20000, 0x22000, 0, PROT_READ | PROT_WRITE, "/system/fake/libunwind.so", elf); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 74 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 75 | elf = new ElfFake(new MemoryFake); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 76 | elf->FakeSetInterface(new ElfInterfaceFake(nullptr)); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 77 | AddMapInfo(0x23000, 0x24000, 0, PROT_READ | PROT_WRITE, "/fake/libanother.so", elf); |
Christopher Ferris | c5a3baa | 2017-10-17 18:42:03 -0700 | [diff] [blame] | 78 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 79 | elf = new ElfFake(new MemoryFake); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 80 | elf->FakeSetInterface(new ElfInterfaceFake(nullptr)); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 81 | AddMapInfo(0x33000, 0x34000, 0, PROT_READ | PROT_WRITE, "/fake/compressed.so", elf); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 82 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 83 | elf = new ElfFake(new MemoryFake); |
Christopher Ferris | 02a6c44 | 2019-03-11 14:43:33 -0700 | [diff] [blame] | 84 | ElfInterfaceFake* interface = new ElfInterfaceFake(nullptr); |
| 85 | interface->FakeSetSoname("lib_fake.so"); |
| 86 | elf->FakeSetInterface(interface); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 87 | AddMapInfo(0x43000, 0x44000, 0x1d000, PROT_READ | PROT_WRITE, "/fake/fake.apk", elf); |
Christopher Ferris | 02a6c44 | 2019-03-11 14:43:33 -0700 | [diff] [blame] | 88 | MapInfo* map_info = maps_->Find(0x43000); |
| 89 | ASSERT_TRUE(map_info != nullptr); |
| 90 | map_info->elf_start_offset = 0x1d000; |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 91 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 92 | AddMapInfo(0x53000, 0x54000, 0, PROT_READ | PROT_WRITE, "/fake/fake.oat"); |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 93 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 94 | AddMapInfo(0xa3000, 0xa4000, 0, PROT_READ | PROT_WRITE | PROT_EXEC, "/fake/fake.vdex"); |
Florian Mayer | 3d67d34 | 2019-02-27 18:00:37 +0000 | [diff] [blame] | 95 | const auto& info = *--maps_->end(); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 96 | info->load_bias = 0; |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 97 | |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 98 | elf = new ElfFake(new MemoryFake); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 99 | elf->FakeSetInterface(new ElfInterfaceFake(nullptr)); |
| 100 | elf->FakeSetLoadBias(0x5000); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 101 | AddMapInfo(0xa5000, 0xa6000, 0, PROT_READ | PROT_WRITE | PROT_EXEC, "/fake/fake_load_bias.so", |
| 102 | elf); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 103 | |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 104 | elf = new ElfFake(new MemoryFake); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 105 | elf->FakeSetInterface(new ElfInterfaceFake(nullptr)); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 106 | AddMapInfo(0xa7000, 0xa8000, 0, PROT_READ | PROT_WRITE | PROT_EXEC, "/fake/fake_offset.oat", |
| 107 | elf); |
Florian Mayer | 3d67d34 | 2019-02-27 18:00:37 +0000 | [diff] [blame] | 108 | const auto& info2 = *--maps_->end(); |
| 109 | info2->elf_offset = 0x8000; |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 110 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 111 | process_memory_.reset(new MemoryFake); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | void SetUp() override { |
| 115 | ElfInterfaceFake::FakeClear(); |
Christopher Ferris | d06001d | 2017-11-30 18:56:01 -0800 | [diff] [blame] | 116 | regs_.FakeSetArch(ARCH_ARM); |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 117 | regs_.FakeSetReturnAddressValid(false); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 118 | } |
| 119 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 120 | static std::unique_ptr<Maps> maps_; |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 121 | static RegsFake regs_; |
| 122 | static std::shared_ptr<Memory> process_memory_; |
| 123 | }; |
| 124 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 125 | std::unique_ptr<Maps> UnwinderTest::maps_; |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 126 | RegsFake UnwinderTest::regs_(5); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 127 | std::shared_ptr<Memory> UnwinderTest::process_memory_(nullptr); |
| 128 | |
| 129 | TEST_F(UnwinderTest, multiple_frames) { |
| 130 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 131 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 132 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 133 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 134 | regs_.set_pc(0x1000); |
| 135 | regs_.set_sp(0x10000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 136 | ElfInterfaceFake::FakePushStepData(StepData(0x1102, 0x10010, false)); |
| 137 | ElfInterfaceFake::FakePushStepData(StepData(0x1202, 0x10020, false)); |
| 138 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 139 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 140 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 141 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 142 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 143 | |
| 144 | ASSERT_EQ(3U, unwinder.NumFrames()); |
| 145 | |
| 146 | auto* frame = &unwinder.frames()[0]; |
| 147 | EXPECT_EQ(0U, frame->num); |
| 148 | EXPECT_EQ(0U, frame->rel_pc); |
| 149 | EXPECT_EQ(0x1000U, frame->pc); |
| 150 | EXPECT_EQ(0x10000U, frame->sp); |
| 151 | EXPECT_EQ("Frame0", frame->function_name); |
| 152 | EXPECT_EQ(0U, frame->function_offset); |
| 153 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 154 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 155 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 156 | EXPECT_EQ(0x1000U, frame->map_start); |
| 157 | EXPECT_EQ(0x8000U, frame->map_end); |
| 158 | EXPECT_EQ(0U, frame->map_load_bias); |
| 159 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 160 | |
| 161 | frame = &unwinder.frames()[1]; |
| 162 | EXPECT_EQ(1U, frame->num); |
| 163 | EXPECT_EQ(0x100U, frame->rel_pc); |
| 164 | EXPECT_EQ(0x1100U, frame->pc); |
| 165 | EXPECT_EQ(0x10010U, frame->sp); |
| 166 | EXPECT_EQ("Frame1", frame->function_name); |
| 167 | EXPECT_EQ(1U, frame->function_offset); |
| 168 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 169 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 170 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 171 | EXPECT_EQ(0x1000U, frame->map_start); |
| 172 | EXPECT_EQ(0x8000U, frame->map_end); |
| 173 | EXPECT_EQ(0U, frame->map_load_bias); |
| 174 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 175 | |
| 176 | frame = &unwinder.frames()[2]; |
| 177 | EXPECT_EQ(2U, frame->num); |
| 178 | EXPECT_EQ(0x200U, frame->rel_pc); |
| 179 | EXPECT_EQ(0x1200U, frame->pc); |
| 180 | EXPECT_EQ(0x10020U, frame->sp); |
| 181 | EXPECT_EQ("Frame2", frame->function_name); |
| 182 | EXPECT_EQ(2U, frame->function_offset); |
| 183 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 184 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 185 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 186 | EXPECT_EQ(0x1000U, frame->map_start); |
| 187 | EXPECT_EQ(0x8000U, frame->map_end); |
| 188 | EXPECT_EQ(0U, frame->map_load_bias); |
| 189 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 190 | } |
| 191 | |
Christopher Ferris | e4b3a6a | 2018-02-20 13:58:40 -0800 | [diff] [blame] | 192 | TEST_F(UnwinderTest, multiple_frames_dont_resolve_names) { |
| 193 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 194 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 195 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 196 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 197 | regs_.set_pc(0x1000); |
| 198 | regs_.set_sp(0x10000); |
Christopher Ferris | e4b3a6a | 2018-02-20 13:58:40 -0800 | [diff] [blame] | 199 | ElfInterfaceFake::FakePushStepData(StepData(0x1102, 0x10010, false)); |
| 200 | ElfInterfaceFake::FakePushStepData(StepData(0x1202, 0x10020, false)); |
| 201 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 202 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 203 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | e4b3a6a | 2018-02-20 13:58:40 -0800 | [diff] [blame] | 204 | unwinder.SetResolveNames(false); |
| 205 | unwinder.Unwind(); |
| 206 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 207 | |
| 208 | ASSERT_EQ(3U, unwinder.NumFrames()); |
| 209 | |
| 210 | auto* frame = &unwinder.frames()[0]; |
| 211 | EXPECT_EQ(0U, frame->num); |
| 212 | EXPECT_EQ(0U, frame->rel_pc); |
| 213 | EXPECT_EQ(0x1000U, frame->pc); |
| 214 | EXPECT_EQ(0x10000U, frame->sp); |
| 215 | EXPECT_EQ("", frame->function_name); |
| 216 | EXPECT_EQ(0U, frame->function_offset); |
David Srbecky | e62f4c4 | 2018-03-16 18:44:04 +0000 | [diff] [blame] | 217 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 218 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 219 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e4b3a6a | 2018-02-20 13:58:40 -0800 | [diff] [blame] | 220 | EXPECT_EQ(0x1000U, frame->map_start); |
| 221 | EXPECT_EQ(0x8000U, frame->map_end); |
| 222 | EXPECT_EQ(0U, frame->map_load_bias); |
| 223 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 224 | |
| 225 | frame = &unwinder.frames()[1]; |
| 226 | EXPECT_EQ(1U, frame->num); |
| 227 | EXPECT_EQ(0x100U, frame->rel_pc); |
| 228 | EXPECT_EQ(0x1100U, frame->pc); |
| 229 | EXPECT_EQ(0x10010U, frame->sp); |
| 230 | EXPECT_EQ("", frame->function_name); |
| 231 | EXPECT_EQ(0U, frame->function_offset); |
David Srbecky | e62f4c4 | 2018-03-16 18:44:04 +0000 | [diff] [blame] | 232 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 233 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 234 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e4b3a6a | 2018-02-20 13:58:40 -0800 | [diff] [blame] | 235 | EXPECT_EQ(0x1000U, frame->map_start); |
| 236 | EXPECT_EQ(0x8000U, frame->map_end); |
| 237 | EXPECT_EQ(0U, frame->map_load_bias); |
| 238 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 239 | |
| 240 | frame = &unwinder.frames()[2]; |
| 241 | EXPECT_EQ(2U, frame->num); |
| 242 | EXPECT_EQ(0x200U, frame->rel_pc); |
| 243 | EXPECT_EQ(0x1200U, frame->pc); |
| 244 | EXPECT_EQ(0x10020U, frame->sp); |
| 245 | EXPECT_EQ("", frame->function_name); |
| 246 | EXPECT_EQ(0U, frame->function_offset); |
David Srbecky | e62f4c4 | 2018-03-16 18:44:04 +0000 | [diff] [blame] | 247 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 248 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 249 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e4b3a6a | 2018-02-20 13:58:40 -0800 | [diff] [blame] | 250 | EXPECT_EQ(0x1000U, frame->map_start); |
| 251 | EXPECT_EQ(0x8000U, frame->map_end); |
| 252 | EXPECT_EQ(0U, frame->map_load_bias); |
| 253 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 254 | } |
| 255 | |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 256 | TEST_F(UnwinderTest, non_zero_load_bias) { |
| 257 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 258 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 259 | regs_.set_pc(0xa5500); |
| 260 | regs_.set_sp(0x10000); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 261 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 262 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 263 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 264 | unwinder.Unwind(); |
| 265 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 266 | |
| 267 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 268 | |
| 269 | auto* frame = &unwinder.frames()[0]; |
| 270 | EXPECT_EQ(0U, frame->num); |
| 271 | EXPECT_EQ(0x5500U, frame->rel_pc); |
| 272 | EXPECT_EQ(0xa5500U, frame->pc); |
| 273 | EXPECT_EQ(0x10000U, frame->sp); |
| 274 | EXPECT_EQ("Frame0", frame->function_name); |
| 275 | EXPECT_EQ(0U, frame->function_offset); |
| 276 | EXPECT_EQ("/fake/fake_load_bias.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 277 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 278 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 279 | EXPECT_EQ(0xa5000U, frame->map_start); |
| 280 | EXPECT_EQ(0xa6000U, frame->map_end); |
| 281 | EXPECT_EQ(0x5000U, frame->map_load_bias); |
| 282 | EXPECT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, frame->map_flags); |
| 283 | } |
| 284 | |
| 285 | TEST_F(UnwinderTest, non_zero_elf_offset) { |
| 286 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 287 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 288 | regs_.set_pc(0xa7500); |
| 289 | regs_.set_sp(0x10000); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 290 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 291 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 292 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 293 | unwinder.Unwind(); |
| 294 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 295 | |
| 296 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 297 | |
| 298 | auto* frame = &unwinder.frames()[0]; |
| 299 | EXPECT_EQ(0U, frame->num); |
| 300 | EXPECT_EQ(0x8500U, frame->rel_pc); |
| 301 | EXPECT_EQ(0xa7500U, frame->pc); |
| 302 | EXPECT_EQ(0x10000U, frame->sp); |
| 303 | EXPECT_EQ("Frame0", frame->function_name); |
| 304 | EXPECT_EQ(0U, frame->function_offset); |
| 305 | EXPECT_EQ("/fake/fake_offset.oat", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 306 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 307 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e4df5f5 | 2018-02-12 13:24:18 -0800 | [diff] [blame] | 308 | EXPECT_EQ(0xa7000U, frame->map_start); |
| 309 | EXPECT_EQ(0xa8000U, frame->map_end); |
| 310 | EXPECT_EQ(0U, frame->map_load_bias); |
| 311 | EXPECT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, frame->map_flags); |
| 312 | } |
| 313 | |
Christopher Ferris | c5a3baa | 2017-10-17 18:42:03 -0700 | [diff] [blame] | 314 | TEST_F(UnwinderTest, non_zero_map_offset) { |
| 315 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 316 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 317 | regs_.set_pc(0x43000); |
| 318 | regs_.set_sp(0x10000); |
Christopher Ferris | c5a3baa | 2017-10-17 18:42:03 -0700 | [diff] [blame] | 319 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 320 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 321 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | c5a3baa | 2017-10-17 18:42:03 -0700 | [diff] [blame] | 322 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 323 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | c5a3baa | 2017-10-17 18:42:03 -0700 | [diff] [blame] | 324 | |
| 325 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 326 | |
| 327 | auto* frame = &unwinder.frames()[0]; |
| 328 | EXPECT_EQ(0U, frame->num); |
| 329 | EXPECT_EQ(0U, frame->rel_pc); |
| 330 | EXPECT_EQ(0x43000U, frame->pc); |
| 331 | EXPECT_EQ(0x10000U, frame->sp); |
| 332 | EXPECT_EQ("Frame0", frame->function_name); |
| 333 | EXPECT_EQ(0U, frame->function_offset); |
Christopher Ferris | 02a6c44 | 2019-03-11 14:43:33 -0700 | [diff] [blame] | 334 | EXPECT_EQ("/fake/fake.apk!lib_fake.so", frame->map_name); |
| 335 | EXPECT_EQ(0x1d000U, frame->map_elf_start_offset); |
| 336 | EXPECT_EQ(0x1d000U, frame->map_exact_offset); |
| 337 | EXPECT_EQ(0x43000U, frame->map_start); |
| 338 | EXPECT_EQ(0x44000U, frame->map_end); |
| 339 | EXPECT_EQ(0U, frame->map_load_bias); |
| 340 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 341 | } |
| 342 | |
| 343 | TEST_F(UnwinderTest, disable_embedded_soname) { |
| 344 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 345 | |
| 346 | regs_.set_pc(0x43000); |
| 347 | regs_.set_sp(0x10000); |
| 348 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 349 | |
| 350 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
| 351 | unwinder.SetEmbeddedSoname(false); |
| 352 | unwinder.Unwind(); |
| 353 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 354 | |
| 355 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 356 | |
| 357 | auto* frame = &unwinder.frames()[0]; |
| 358 | EXPECT_EQ(0U, frame->num); |
| 359 | EXPECT_EQ(0U, frame->rel_pc); |
| 360 | EXPECT_EQ(0x43000U, frame->pc); |
| 361 | EXPECT_EQ(0x10000U, frame->sp); |
| 362 | EXPECT_EQ("Frame0", frame->function_name); |
| 363 | EXPECT_EQ(0U, frame->function_offset); |
Christopher Ferris | c5a3baa | 2017-10-17 18:42:03 -0700 | [diff] [blame] | 364 | EXPECT_EQ("/fake/fake.apk", frame->map_name); |
Christopher Ferris | 02a6c44 | 2019-03-11 14:43:33 -0700 | [diff] [blame] | 365 | EXPECT_EQ(0x1d000U, frame->map_elf_start_offset); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 366 | EXPECT_EQ(0x1d000U, frame->map_exact_offset); |
Christopher Ferris | c5a3baa | 2017-10-17 18:42:03 -0700 | [diff] [blame] | 367 | EXPECT_EQ(0x43000U, frame->map_start); |
| 368 | EXPECT_EQ(0x44000U, frame->map_end); |
| 369 | EXPECT_EQ(0U, frame->map_load_bias); |
| 370 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 371 | } |
| 372 | |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 373 | // Verify that no attempt to continue after the step indicates it is done. |
| 374 | TEST_F(UnwinderTest, no_frames_after_finished) { |
| 375 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 376 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 377 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 378 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame3", 3)); |
| 379 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame4", 4)); |
| 380 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 381 | regs_.set_pc(0x1000); |
| 382 | regs_.set_sp(0x10000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 383 | ElfInterfaceFake::FakePushStepData(StepData(0x1000, 0x10000, true)); |
| 384 | ElfInterfaceFake::FakePushStepData(StepData(0x1102, 0x10010, false)); |
| 385 | ElfInterfaceFake::FakePushStepData(StepData(0x1202, 0x10020, false)); |
| 386 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 387 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 388 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 389 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 390 | |
| 391 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 392 | |
| 393 | auto* frame = &unwinder.frames()[0]; |
| 394 | EXPECT_EQ(0U, frame->num); |
| 395 | EXPECT_EQ(0U, frame->rel_pc); |
| 396 | EXPECT_EQ(0x1000U, frame->pc); |
| 397 | EXPECT_EQ(0x10000U, frame->sp); |
| 398 | EXPECT_EQ("Frame0", frame->function_name); |
| 399 | EXPECT_EQ(0U, frame->function_offset); |
| 400 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 401 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 402 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 403 | EXPECT_EQ(0x1000U, frame->map_start); |
| 404 | EXPECT_EQ(0x8000U, frame->map_end); |
| 405 | EXPECT_EQ(0U, frame->map_load_bias); |
| 406 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 407 | } |
| 408 | |
| 409 | // Verify the maximum frames to save. |
| 410 | TEST_F(UnwinderTest, max_frames) { |
| 411 | for (size_t i = 0; i < 30; i++) { |
| 412 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame" + std::to_string(i), i)); |
| 413 | ElfInterfaceFake::FakePushStepData(StepData(0x1102 + i * 0x100, 0x10010 + i * 0x10, false)); |
| 414 | } |
| 415 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 416 | regs_.set_pc(0x1000); |
| 417 | regs_.set_sp(0x10000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 418 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 419 | Unwinder unwinder(20, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 420 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 421 | EXPECT_EQ(ERROR_MAX_FRAMES_EXCEEDED, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 422 | |
| 423 | ASSERT_EQ(20U, unwinder.NumFrames()); |
| 424 | |
| 425 | for (size_t i = 0; i < 20; i++) { |
| 426 | auto* frame = &unwinder.frames()[i]; |
| 427 | EXPECT_EQ(i, frame->num); |
| 428 | EXPECT_EQ(i * 0x100, frame->rel_pc) << "Failed at frame " << i; |
| 429 | EXPECT_EQ(0x1000 + i * 0x100, frame->pc) << "Failed at frame " << i; |
| 430 | EXPECT_EQ(0x10000 + 0x10 * i, frame->sp) << "Failed at frame " << i; |
| 431 | EXPECT_EQ("Frame" + std::to_string(i), frame->function_name) << "Failed at frame " << i; |
| 432 | EXPECT_EQ(i, frame->function_offset) << "Failed at frame " << i; |
| 433 | EXPECT_EQ("/system/fake/libc.so", frame->map_name) << "Failed at frame " << i; |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 434 | EXPECT_EQ(0U, frame->map_elf_start_offset) << "Failed at frame " << i; |
| 435 | EXPECT_EQ(0U, frame->map_exact_offset) << "Failed at frame " << i; |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 436 | EXPECT_EQ(0x1000U, frame->map_start) << "Failed at frame " << i; |
| 437 | EXPECT_EQ(0x8000U, frame->map_end) << "Failed at frame " << i; |
| 438 | EXPECT_EQ(0U, frame->map_load_bias) << "Failed at frame " << i; |
| 439 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags) << "Failed at frame " << i; |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | // Verify that initial map names frames are removed. |
| 444 | TEST_F(UnwinderTest, verify_frames_skipped) { |
| 445 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 446 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 447 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 448 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 449 | regs_.set_pc(0x20000); |
| 450 | regs_.set_sp(0x10000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 451 | ElfInterfaceFake::FakePushStepData(StepData(0x23002, 0x10010, false)); |
| 452 | ElfInterfaceFake::FakePushStepData(StepData(0x23102, 0x10020, false)); |
| 453 | ElfInterfaceFake::FakePushStepData(StepData(0x20002, 0x10030, false)); |
| 454 | ElfInterfaceFake::FakePushStepData(StepData(0x21002, 0x10040, false)); |
| 455 | ElfInterfaceFake::FakePushStepData(StepData(0x1002, 0x10050, false)); |
| 456 | ElfInterfaceFake::FakePushStepData(StepData(0x21002, 0x10060, false)); |
| 457 | ElfInterfaceFake::FakePushStepData(StepData(0x23002, 0x10070, false)); |
| 458 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 459 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 460 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | 1cb84ce | 2017-10-24 15:36:00 -0700 | [diff] [blame] | 461 | std::vector<std::string> skip_libs{"libunwind.so", "libanother.so"}; |
| 462 | unwinder.Unwind(&skip_libs); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 463 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 464 | |
| 465 | ASSERT_EQ(3U, unwinder.NumFrames()); |
| 466 | |
| 467 | auto* frame = &unwinder.frames()[0]; |
| 468 | EXPECT_EQ(0U, frame->num); |
| 469 | EXPECT_EQ(0U, frame->rel_pc); |
| 470 | EXPECT_EQ(0x1000U, frame->pc); |
| 471 | EXPECT_EQ(0x10050U, frame->sp); |
| 472 | EXPECT_EQ("Frame0", frame->function_name); |
| 473 | EXPECT_EQ(0U, frame->function_offset); |
| 474 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 475 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 476 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 477 | EXPECT_EQ(0x1000U, frame->map_start); |
| 478 | EXPECT_EQ(0x8000U, frame->map_end); |
| 479 | EXPECT_EQ(0U, frame->map_load_bias); |
| 480 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 481 | |
| 482 | frame = &unwinder.frames()[1]; |
| 483 | EXPECT_EQ(1U, frame->num); |
| 484 | EXPECT_EQ(0x1000U, frame->rel_pc); |
| 485 | EXPECT_EQ(0x21000U, frame->pc); |
| 486 | EXPECT_EQ(0x10060U, frame->sp); |
| 487 | EXPECT_EQ("Frame1", frame->function_name); |
| 488 | EXPECT_EQ(1U, frame->function_offset); |
| 489 | EXPECT_EQ("/system/fake/libunwind.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 490 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 491 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 492 | EXPECT_EQ(0x20000U, frame->map_start); |
| 493 | EXPECT_EQ(0x22000U, frame->map_end); |
| 494 | EXPECT_EQ(0U, frame->map_load_bias); |
| 495 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 496 | |
| 497 | frame = &unwinder.frames()[2]; |
| 498 | EXPECT_EQ(2U, frame->num); |
| 499 | EXPECT_EQ(0U, frame->rel_pc); |
| 500 | EXPECT_EQ(0x23000U, frame->pc); |
| 501 | EXPECT_EQ(0x10070U, frame->sp); |
| 502 | EXPECT_EQ("Frame2", frame->function_name); |
| 503 | EXPECT_EQ(2U, frame->function_offset); |
| 504 | EXPECT_EQ("/fake/libanother.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 505 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 506 | EXPECT_EQ(0x23000U, frame->map_start); |
| 507 | EXPECT_EQ(0x24000U, frame->map_end); |
| 508 | EXPECT_EQ(0U, frame->map_load_bias); |
| 509 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 510 | } |
| 511 | |
| 512 | // Verify SP in a non-existant map is okay. |
| 513 | TEST_F(UnwinderTest, sp_not_in_map) { |
| 514 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 515 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 516 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 517 | regs_.set_pc(0x1000); |
| 518 | regs_.set_sp(0x63000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 519 | ElfInterfaceFake::FakePushStepData(StepData(0x21002, 0x50020, false)); |
| 520 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 521 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 522 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 523 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 524 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 525 | |
| 526 | ASSERT_EQ(2U, unwinder.NumFrames()); |
| 527 | |
| 528 | auto* frame = &unwinder.frames()[0]; |
| 529 | EXPECT_EQ(0U, frame->num); |
| 530 | EXPECT_EQ(0U, frame->rel_pc); |
| 531 | EXPECT_EQ(0x1000U, frame->pc); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 532 | EXPECT_EQ(0x63000U, frame->sp); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 533 | EXPECT_EQ("Frame0", frame->function_name); |
| 534 | EXPECT_EQ(0U, frame->function_offset); |
| 535 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 536 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 537 | EXPECT_EQ(0x1000U, frame->map_start); |
| 538 | EXPECT_EQ(0x8000U, frame->map_end); |
| 539 | EXPECT_EQ(0U, frame->map_load_bias); |
| 540 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 541 | |
| 542 | frame = &unwinder.frames()[1]; |
| 543 | EXPECT_EQ(1U, frame->num); |
| 544 | EXPECT_EQ(0x1000U, frame->rel_pc); |
| 545 | EXPECT_EQ(0x21000U, frame->pc); |
| 546 | EXPECT_EQ(0x50020U, frame->sp); |
| 547 | EXPECT_EQ("Frame1", frame->function_name); |
| 548 | EXPECT_EQ(1U, frame->function_offset); |
| 549 | EXPECT_EQ("/system/fake/libunwind.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 550 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 551 | EXPECT_EQ(0x20000U, frame->map_start); |
| 552 | EXPECT_EQ(0x22000U, frame->map_end); |
| 553 | EXPECT_EQ(0U, frame->map_load_bias); |
| 554 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 555 | } |
| 556 | |
| 557 | // Verify PC in a device stops the unwind. |
| 558 | TEST_F(UnwinderTest, pc_in_device_stops_unwind) { |
| 559 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 560 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 561 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 562 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 563 | regs_.set_pc(0x13000); |
| 564 | regs_.set_sp(0x10000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 565 | ElfInterfaceFake::FakePushStepData(StepData(0x23002, 0x10010, false)); |
| 566 | ElfInterfaceFake::FakePushStepData(StepData(0x23102, 0x10020, false)); |
| 567 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 568 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 569 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 570 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 571 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 572 | |
| 573 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 574 | } |
| 575 | |
| 576 | // Verify SP in a device stops the unwind. |
| 577 | TEST_F(UnwinderTest, sp_in_device_stops_unwind) { |
| 578 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 579 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 580 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 581 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 582 | regs_.set_pc(0x1000); |
| 583 | regs_.set_sp(0x13000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 584 | ElfInterfaceFake::FakePushStepData(StepData(0x23002, 0x10010, false)); |
| 585 | ElfInterfaceFake::FakePushStepData(StepData(0x23102, 0x10020, false)); |
| 586 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 587 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 588 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 589 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 590 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 591 | |
| 592 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 593 | } |
| 594 | |
| 595 | // Verify a no map info frame gets a frame. |
| 596 | TEST_F(UnwinderTest, pc_without_map) { |
| 597 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 598 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 599 | regs_.set_pc(0x41000); |
| 600 | regs_.set_sp(0x13000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 601 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 602 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 603 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 604 | EXPECT_EQ(ERROR_INVALID_MAP, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 605 | |
| 606 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 607 | |
| 608 | auto* frame = &unwinder.frames()[0]; |
| 609 | EXPECT_EQ(0U, frame->num); |
| 610 | EXPECT_EQ(0x41000U, frame->rel_pc); |
| 611 | EXPECT_EQ(0x41000U, frame->pc); |
| 612 | EXPECT_EQ(0x13000U, frame->sp); |
| 613 | EXPECT_EQ("", frame->function_name); |
| 614 | EXPECT_EQ(0U, frame->function_offset); |
| 615 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 616 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 617 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 618 | EXPECT_EQ(0U, frame->map_start); |
| 619 | EXPECT_EQ(0U, frame->map_end); |
| 620 | EXPECT_EQ(0U, frame->map_load_bias); |
| 621 | EXPECT_EQ(0, frame->map_flags); |
| 622 | } |
| 623 | |
| 624 | // Verify that a speculative frame is added. |
| 625 | TEST_F(UnwinderTest, speculative_frame) { |
| 626 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 627 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 628 | |
| 629 | // Fake as if code called a nullptr function. |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 630 | regs_.set_pc(0); |
| 631 | regs_.set_sp(0x10000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 632 | regs_.FakeSetReturnAddress(0x1202); |
| 633 | regs_.FakeSetReturnAddressValid(true); |
| 634 | |
| 635 | ElfInterfaceFake::FakePushStepData(StepData(0x23102, 0x10020, false)); |
| 636 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 637 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 638 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 639 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 640 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 641 | |
| 642 | ASSERT_EQ(3U, unwinder.NumFrames()); |
| 643 | |
| 644 | auto* frame = &unwinder.frames()[0]; |
| 645 | EXPECT_EQ(0U, frame->num); |
| 646 | EXPECT_EQ(0U, frame->rel_pc); |
| 647 | EXPECT_EQ(0U, frame->pc); |
| 648 | EXPECT_EQ(0x10000U, frame->sp); |
| 649 | EXPECT_EQ("", frame->function_name); |
| 650 | EXPECT_EQ(0U, frame->function_offset); |
| 651 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 652 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 653 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 654 | EXPECT_EQ(0U, frame->map_start); |
| 655 | EXPECT_EQ(0U, frame->map_end); |
| 656 | EXPECT_EQ(0U, frame->map_load_bias); |
| 657 | EXPECT_EQ(0, frame->map_flags); |
| 658 | |
| 659 | frame = &unwinder.frames()[1]; |
| 660 | EXPECT_EQ(1U, frame->num); |
| 661 | EXPECT_EQ(0x200U, frame->rel_pc); |
| 662 | EXPECT_EQ(0x1200U, frame->pc); |
| 663 | EXPECT_EQ(0x10000U, frame->sp); |
| 664 | EXPECT_EQ("Frame0", frame->function_name); |
| 665 | EXPECT_EQ(0U, frame->function_offset); |
| 666 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 667 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 668 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 669 | EXPECT_EQ(0x1000U, frame->map_start); |
| 670 | EXPECT_EQ(0x8000U, frame->map_end); |
| 671 | EXPECT_EQ(0U, frame->map_load_bias); |
| 672 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 673 | |
| 674 | frame = &unwinder.frames()[2]; |
| 675 | EXPECT_EQ(2U, frame->num); |
| 676 | EXPECT_EQ(0x100U, frame->rel_pc); |
| 677 | EXPECT_EQ(0x23100U, frame->pc); |
| 678 | EXPECT_EQ(0x10020U, frame->sp); |
| 679 | EXPECT_EQ("Frame1", frame->function_name); |
| 680 | EXPECT_EQ(1U, frame->function_offset); |
| 681 | EXPECT_EQ("/fake/libanother.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 682 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 683 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 684 | EXPECT_EQ(0x23000U, frame->map_start); |
| 685 | EXPECT_EQ(0x24000U, frame->map_end); |
| 686 | EXPECT_EQ(0U, frame->map_load_bias); |
| 687 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 688 | } |
| 689 | |
| 690 | // Verify that a speculative frame is added then removed because no other |
| 691 | // frames are added. |
| 692 | TEST_F(UnwinderTest, speculative_frame_removed) { |
| 693 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 694 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 695 | |
| 696 | // Fake as if code called a nullptr function. |
Christopher Ferris | 065f156 | 2018-12-13 09:33:45 -0800 | [diff] [blame] | 697 | regs_.set_pc(0x20000); |
| 698 | regs_.set_sp(0x10000); |
| 699 | ElfInterfaceFake::FakePushStepData(StepData(0, 0x10010, false)); |
| 700 | regs_.FakeSetReturnAddress(0x12); |
| 701 | regs_.FakeSetReturnAddressValid(true); |
| 702 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 703 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | 065f156 | 2018-12-13 09:33:45 -0800 | [diff] [blame] | 704 | unwinder.Unwind(); |
| 705 | EXPECT_EQ(ERROR_INVALID_MAP, unwinder.LastErrorCode()); |
| 706 | |
| 707 | ASSERT_EQ(2U, unwinder.NumFrames()); |
| 708 | |
| 709 | auto* frame = &unwinder.frames()[0]; |
| 710 | EXPECT_EQ(0U, frame->num); |
| 711 | EXPECT_EQ(0U, frame->rel_pc); |
| 712 | EXPECT_EQ(0x20000U, frame->pc); |
| 713 | EXPECT_EQ(0x10000U, frame->sp); |
| 714 | EXPECT_EQ("Frame0", frame->function_name); |
| 715 | EXPECT_EQ(0U, frame->function_offset); |
| 716 | EXPECT_EQ("/system/fake/libunwind.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 717 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 718 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | 065f156 | 2018-12-13 09:33:45 -0800 | [diff] [blame] | 719 | EXPECT_EQ(0x20000U, frame->map_start); |
| 720 | EXPECT_EQ(0x22000U, frame->map_end); |
| 721 | EXPECT_EQ(0U, frame->map_load_bias); |
| 722 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 723 | |
| 724 | frame = &unwinder.frames()[1]; |
| 725 | EXPECT_EQ(1U, frame->num); |
| 726 | EXPECT_EQ(0U, frame->rel_pc); |
| 727 | EXPECT_EQ(0U, frame->pc); |
| 728 | EXPECT_EQ(0x10010U, frame->sp); |
| 729 | EXPECT_EQ("", frame->function_name); |
| 730 | EXPECT_EQ(0U, frame->function_offset); |
| 731 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 732 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 733 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | 065f156 | 2018-12-13 09:33:45 -0800 | [diff] [blame] | 734 | EXPECT_EQ(0U, frame->map_start); |
| 735 | EXPECT_EQ(0U, frame->map_end); |
| 736 | EXPECT_EQ(0U, frame->map_load_bias); |
| 737 | EXPECT_EQ(0, frame->map_flags); |
| 738 | } |
| 739 | |
| 740 | // Verify that a speculative frame is added and left if there are only |
| 741 | // two frames and the pc is in the middle nowhere. |
| 742 | TEST_F(UnwinderTest, speculative_frame_not_removed_pc_bad) { |
| 743 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 744 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 745 | |
| 746 | // Fake as if code called a nullptr function. |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 747 | regs_.set_pc(0); |
| 748 | regs_.set_sp(0x10000); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 749 | regs_.FakeSetReturnAddress(0x1202); |
| 750 | regs_.FakeSetReturnAddressValid(true); |
| 751 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 752 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 753 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 754 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 755 | |
Christopher Ferris | 065f156 | 2018-12-13 09:33:45 -0800 | [diff] [blame] | 756 | ASSERT_EQ(2U, unwinder.NumFrames()); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 757 | |
| 758 | auto* frame = &unwinder.frames()[0]; |
| 759 | EXPECT_EQ(0U, frame->num); |
| 760 | EXPECT_EQ(0U, frame->rel_pc); |
| 761 | EXPECT_EQ(0U, frame->pc); |
| 762 | EXPECT_EQ(0x10000U, frame->sp); |
| 763 | EXPECT_EQ("", frame->function_name); |
| 764 | EXPECT_EQ(0U, frame->function_offset); |
| 765 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 766 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 767 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 768 | EXPECT_EQ(0U, frame->map_start); |
| 769 | EXPECT_EQ(0U, frame->map_end); |
| 770 | EXPECT_EQ(0U, frame->map_load_bias); |
| 771 | EXPECT_EQ(0, frame->map_flags); |
Christopher Ferris | 065f156 | 2018-12-13 09:33:45 -0800 | [diff] [blame] | 772 | |
| 773 | frame = &unwinder.frames()[1]; |
| 774 | EXPECT_EQ(1U, frame->num); |
| 775 | EXPECT_EQ(0x200U, frame->rel_pc); |
| 776 | EXPECT_EQ(0x1200U, frame->pc); |
| 777 | EXPECT_EQ(0x10000U, frame->sp); |
| 778 | EXPECT_EQ("Frame0", frame->function_name); |
| 779 | EXPECT_EQ(0U, frame->function_offset); |
| 780 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 781 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 782 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | 065f156 | 2018-12-13 09:33:45 -0800 | [diff] [blame] | 783 | EXPECT_EQ(0x1000U, frame->map_start); |
| 784 | EXPECT_EQ(0x8000U, frame->map_end); |
| 785 | EXPECT_EQ(0U, frame->map_load_bias); |
| 786 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 787 | } |
| 788 | |
Florian Mayer | c479e4e | 2019-01-23 13:35:40 +0000 | [diff] [blame] | 789 | // Verify that a speculative frame does not cause a crash when it wasn't |
| 790 | // really added due to a filter. |
| 791 | TEST_F(UnwinderTest, speculative_frame_check_with_no_frames) { |
| 792 | regs_.set_pc(0x23000); |
| 793 | regs_.set_sp(0x10000); |
| 794 | regs_.FakeSetReturnAddress(0x23100); |
| 795 | regs_.FakeSetReturnAddressValid(true); |
| 796 | |
| 797 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
| 798 | |
| 799 | std::vector<std::string> skip_names{"libanother.so"}; |
| 800 | unwinder.Unwind(&skip_names); |
| 801 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 802 | |
| 803 | ASSERT_EQ(0U, unwinder.NumFrames()); |
| 804 | } |
| 805 | |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 806 | // Verify that an unwind stops when a frame is in given suffix. |
| 807 | TEST_F(UnwinderTest, map_ignore_suffixes) { |
| 808 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 809 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 810 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 811 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame3", 3)); |
| 812 | |
| 813 | // Fake as if code called a nullptr function. |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 814 | regs_.set_pc(0x1000); |
| 815 | regs_.set_sp(0x10000); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 816 | ElfInterfaceFake::FakePushStepData(StepData(0x43402, 0x10010, false)); |
| 817 | ElfInterfaceFake::FakePushStepData(StepData(0x53502, 0x10020, false)); |
| 818 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 819 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 820 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | 1cb84ce | 2017-10-24 15:36:00 -0700 | [diff] [blame] | 821 | std::vector<std::string> suffixes{"oat"}; |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 822 | unwinder.Unwind(nullptr, &suffixes); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 823 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 824 | |
| 825 | ASSERT_EQ(2U, unwinder.NumFrames()); |
| 826 | // Make sure the elf was not initialized. |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 827 | MapInfo* map_info = maps_->Find(0x53000); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 828 | ASSERT_TRUE(map_info != nullptr); |
| 829 | EXPECT_TRUE(map_info->elf == nullptr); |
| 830 | |
| 831 | auto* frame = &unwinder.frames()[0]; |
| 832 | EXPECT_EQ(0U, frame->num); |
| 833 | EXPECT_EQ(0U, frame->rel_pc); |
| 834 | EXPECT_EQ(0x1000U, frame->pc); |
| 835 | EXPECT_EQ(0x10000U, frame->sp); |
| 836 | EXPECT_EQ("Frame0", frame->function_name); |
| 837 | EXPECT_EQ(0U, frame->function_offset); |
| 838 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 839 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 840 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 841 | EXPECT_EQ(0x1000U, frame->map_start); |
| 842 | EXPECT_EQ(0x8000U, frame->map_end); |
| 843 | EXPECT_EQ(0U, frame->map_load_bias); |
| 844 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 845 | |
| 846 | frame = &unwinder.frames()[1]; |
| 847 | EXPECT_EQ(1U, frame->num); |
| 848 | EXPECT_EQ(0x400U, frame->rel_pc); |
| 849 | EXPECT_EQ(0x43400U, frame->pc); |
| 850 | EXPECT_EQ(0x10010U, frame->sp); |
| 851 | EXPECT_EQ("Frame1", frame->function_name); |
| 852 | EXPECT_EQ(1U, frame->function_offset); |
Christopher Ferris | 02a6c44 | 2019-03-11 14:43:33 -0700 | [diff] [blame] | 853 | EXPECT_EQ("/fake/fake.apk!lib_fake.so", frame->map_name); |
| 854 | EXPECT_EQ(0x1d000U, frame->map_elf_start_offset); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 855 | EXPECT_EQ(0x1d000U, frame->map_exact_offset); |
Christopher Ferris | e69f470 | 2017-10-19 16:08:58 -0700 | [diff] [blame] | 856 | EXPECT_EQ(0x43000U, frame->map_start); |
| 857 | EXPECT_EQ(0x44000U, frame->map_end); |
| 858 | EXPECT_EQ(0U, frame->map_load_bias); |
| 859 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 860 | } |
| 861 | |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 862 | // Verify that an unwind stops when the sp and pc don't change. |
| 863 | TEST_F(UnwinderTest, sp_pc_do_not_change) { |
| 864 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 865 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
| 866 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame2", 2)); |
| 867 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame3", 3)); |
| 868 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame4", 4)); |
| 869 | |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 870 | regs_.set_pc(0x1000); |
| 871 | regs_.set_sp(0x10000); |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 872 | ElfInterfaceFake::FakePushStepData(StepData(0x33402, 0x10010, false)); |
| 873 | ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false)); |
| 874 | ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false)); |
| 875 | ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false)); |
| 876 | ElfInterfaceFake::FakePushStepData(StepData(0x33502, 0x10020, false)); |
| 877 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 878 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 879 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 880 | unwinder.Unwind(); |
Christopher Ferris | 2fcf4cf | 2018-01-23 17:52:23 -0800 | [diff] [blame] | 881 | EXPECT_EQ(ERROR_REPEATED_FRAME, unwinder.LastErrorCode()); |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 882 | |
| 883 | ASSERT_EQ(3U, unwinder.NumFrames()); |
| 884 | |
| 885 | auto* frame = &unwinder.frames()[0]; |
| 886 | EXPECT_EQ(0U, frame->num); |
| 887 | EXPECT_EQ(0U, frame->rel_pc); |
| 888 | EXPECT_EQ(0x1000U, frame->pc); |
| 889 | EXPECT_EQ(0x10000U, frame->sp); |
| 890 | EXPECT_EQ("Frame0", frame->function_name); |
| 891 | EXPECT_EQ(0U, frame->function_offset); |
| 892 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 893 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 894 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 895 | EXPECT_EQ(0x1000U, frame->map_start); |
| 896 | EXPECT_EQ(0x8000U, frame->map_end); |
| 897 | EXPECT_EQ(0U, frame->map_load_bias); |
| 898 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 899 | |
| 900 | frame = &unwinder.frames()[1]; |
| 901 | EXPECT_EQ(1U, frame->num); |
| 902 | EXPECT_EQ(0x400U, frame->rel_pc); |
| 903 | EXPECT_EQ(0x33400U, frame->pc); |
| 904 | EXPECT_EQ(0x10010U, frame->sp); |
| 905 | EXPECT_EQ("Frame1", frame->function_name); |
| 906 | EXPECT_EQ(1U, frame->function_offset); |
| 907 | EXPECT_EQ("/fake/compressed.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 908 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 909 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 910 | EXPECT_EQ(0x33000U, frame->map_start); |
| 911 | EXPECT_EQ(0x34000U, frame->map_end); |
| 912 | EXPECT_EQ(0U, frame->map_load_bias); |
| 913 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 914 | |
| 915 | frame = &unwinder.frames()[2]; |
| 916 | EXPECT_EQ(2U, frame->num); |
| 917 | EXPECT_EQ(0x500U, frame->rel_pc); |
| 918 | EXPECT_EQ(0x33500U, frame->pc); |
| 919 | EXPECT_EQ(0x10020U, frame->sp); |
| 920 | EXPECT_EQ("Frame2", frame->function_name); |
| 921 | EXPECT_EQ(2U, frame->function_offset); |
| 922 | EXPECT_EQ("/fake/compressed.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 923 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 924 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | fda7edd | 2017-10-31 16:10:42 -0700 | [diff] [blame] | 925 | EXPECT_EQ(0x33000U, frame->map_start); |
| 926 | EXPECT_EQ(0x34000U, frame->map_end); |
| 927 | EXPECT_EQ(0U, frame->map_load_bias); |
| 928 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 929 | } |
| 930 | |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 931 | TEST_F(UnwinderTest, dex_pc_in_map) { |
| 932 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 933 | regs_.set_pc(0x1000); |
| 934 | regs_.set_sp(0x10000); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 935 | regs_.FakeSetDexPc(0xa3400); |
| 936 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 937 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 938 | unwinder.Unwind(); |
| 939 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 940 | |
| 941 | ASSERT_EQ(2U, unwinder.NumFrames()); |
| 942 | |
| 943 | auto* frame = &unwinder.frames()[0]; |
| 944 | EXPECT_EQ(0U, frame->num); |
| 945 | EXPECT_EQ(0x400U, frame->rel_pc); |
| 946 | EXPECT_EQ(0xa3400U, frame->pc); |
| 947 | EXPECT_EQ(0x10000U, frame->sp); |
| 948 | EXPECT_EQ("", frame->function_name); |
| 949 | EXPECT_EQ(0U, frame->function_offset); |
| 950 | EXPECT_EQ("/fake/fake.vdex", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 951 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 952 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 953 | EXPECT_EQ(0xa3000U, frame->map_start); |
| 954 | EXPECT_EQ(0xa4000U, frame->map_end); |
| 955 | EXPECT_EQ(0U, frame->map_load_bias); |
| 956 | EXPECT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, frame->map_flags); |
| 957 | |
| 958 | frame = &unwinder.frames()[1]; |
| 959 | EXPECT_EQ(1U, frame->num); |
| 960 | EXPECT_EQ(0U, frame->rel_pc); |
| 961 | EXPECT_EQ(0x1000U, frame->pc); |
| 962 | EXPECT_EQ(0x10000U, frame->sp); |
| 963 | EXPECT_EQ("Frame0", frame->function_name); |
| 964 | EXPECT_EQ(0U, frame->function_offset); |
| 965 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 966 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 967 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 968 | EXPECT_EQ(0x1000U, frame->map_start); |
| 969 | EXPECT_EQ(0x8000U, frame->map_end); |
| 970 | EXPECT_EQ(0U, frame->map_load_bias); |
| 971 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 972 | } |
| 973 | |
| 974 | TEST_F(UnwinderTest, dex_pc_not_in_map) { |
| 975 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 976 | regs_.set_pc(0x1000); |
| 977 | regs_.set_sp(0x10000); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 978 | regs_.FakeSetDexPc(0x50000); |
| 979 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 980 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 981 | unwinder.Unwind(); |
| 982 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 983 | |
| 984 | ASSERT_EQ(2U, unwinder.NumFrames()); |
| 985 | |
| 986 | auto* frame = &unwinder.frames()[0]; |
| 987 | EXPECT_EQ(0U, frame->num); |
| 988 | EXPECT_EQ(0x50000U, frame->rel_pc); |
| 989 | EXPECT_EQ(0x50000U, frame->pc); |
| 990 | EXPECT_EQ(0x10000U, frame->sp); |
| 991 | EXPECT_EQ("", frame->function_name); |
| 992 | EXPECT_EQ(0U, frame->function_offset); |
| 993 | EXPECT_EQ("", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 994 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 995 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 996 | EXPECT_EQ(0U, frame->map_start); |
| 997 | EXPECT_EQ(0U, frame->map_end); |
| 998 | EXPECT_EQ(0U, frame->map_load_bias); |
| 999 | EXPECT_EQ(0, frame->map_flags); |
| 1000 | |
| 1001 | frame = &unwinder.frames()[1]; |
| 1002 | EXPECT_EQ(1U, frame->num); |
| 1003 | EXPECT_EQ(0U, frame->rel_pc); |
| 1004 | EXPECT_EQ(0x1000U, frame->pc); |
| 1005 | EXPECT_EQ(0x10000U, frame->sp); |
| 1006 | EXPECT_EQ("Frame0", frame->function_name); |
| 1007 | EXPECT_EQ(0U, frame->function_offset); |
| 1008 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1009 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 1010 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | e762f1f | 2018-02-06 14:51:48 -0800 | [diff] [blame] | 1011 | EXPECT_EQ(0x1000U, frame->map_start); |
| 1012 | EXPECT_EQ(0x8000U, frame->map_end); |
| 1013 | EXPECT_EQ(0U, frame->map_load_bias); |
| 1014 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 1015 | } |
| 1016 | |
Christopher Ferris | a8c3973 | 2018-02-12 08:46:19 -0800 | [diff] [blame] | 1017 | TEST_F(UnwinderTest, dex_pc_multiple_frames) { |
| 1018 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 1019 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame1", 1)); |
Yabin Cui | 11e96fe | 2018-03-14 18:16:22 -0700 | [diff] [blame] | 1020 | regs_.set_pc(0x1000); |
| 1021 | regs_.set_sp(0x10000); |
Christopher Ferris | a8c3973 | 2018-02-12 08:46:19 -0800 | [diff] [blame] | 1022 | regs_.FakeSetDexPc(0xa3400); |
| 1023 | ElfInterfaceFake::FakePushStepData(StepData(0x33402, 0x10010, false)); |
| 1024 | ElfInterfaceFake::FakePushStepData(StepData(0, 0, true)); |
| 1025 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1026 | Unwinder unwinder(64, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | a8c3973 | 2018-02-12 08:46:19 -0800 | [diff] [blame] | 1027 | unwinder.Unwind(); |
| 1028 | EXPECT_EQ(ERROR_NONE, unwinder.LastErrorCode()); |
| 1029 | |
| 1030 | ASSERT_EQ(3U, unwinder.NumFrames()); |
| 1031 | |
| 1032 | auto* frame = &unwinder.frames()[0]; |
| 1033 | EXPECT_EQ(0U, frame->num); |
| 1034 | EXPECT_EQ(0x400U, frame->rel_pc); |
| 1035 | EXPECT_EQ(0xa3400U, frame->pc); |
| 1036 | EXPECT_EQ(0x10000U, frame->sp); |
| 1037 | EXPECT_EQ("", frame->function_name); |
| 1038 | EXPECT_EQ(0U, frame->function_offset); |
| 1039 | EXPECT_EQ("/fake/fake.vdex", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1040 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 1041 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | a8c3973 | 2018-02-12 08:46:19 -0800 | [diff] [blame] | 1042 | EXPECT_EQ(0xa3000U, frame->map_start); |
| 1043 | EXPECT_EQ(0xa4000U, frame->map_end); |
| 1044 | EXPECT_EQ(0U, frame->map_load_bias); |
| 1045 | EXPECT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, frame->map_flags); |
| 1046 | |
| 1047 | frame = &unwinder.frames()[1]; |
| 1048 | EXPECT_EQ(1U, frame->num); |
| 1049 | EXPECT_EQ(0U, frame->rel_pc); |
| 1050 | EXPECT_EQ(0x1000U, frame->pc); |
| 1051 | EXPECT_EQ(0x10000U, frame->sp); |
| 1052 | EXPECT_EQ("Frame0", frame->function_name); |
| 1053 | EXPECT_EQ(0U, frame->function_offset); |
| 1054 | EXPECT_EQ("/system/fake/libc.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1055 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 1056 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | a8c3973 | 2018-02-12 08:46:19 -0800 | [diff] [blame] | 1057 | EXPECT_EQ(0x1000U, frame->map_start); |
| 1058 | EXPECT_EQ(0x8000U, frame->map_end); |
| 1059 | EXPECT_EQ(0U, frame->map_load_bias); |
| 1060 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 1061 | |
| 1062 | frame = &unwinder.frames()[2]; |
| 1063 | EXPECT_EQ(2U, frame->num); |
| 1064 | EXPECT_EQ(0x400U, frame->rel_pc); |
| 1065 | EXPECT_EQ(0x33400U, frame->pc); |
| 1066 | EXPECT_EQ(0x10010U, frame->sp); |
| 1067 | EXPECT_EQ("Frame1", frame->function_name); |
| 1068 | EXPECT_EQ(1U, frame->function_offset); |
| 1069 | EXPECT_EQ("/fake/compressed.so", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1070 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 1071 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | a8c3973 | 2018-02-12 08:46:19 -0800 | [diff] [blame] | 1072 | EXPECT_EQ(0x33000U, frame->map_start); |
| 1073 | EXPECT_EQ(0x34000U, frame->map_end); |
| 1074 | EXPECT_EQ(0U, frame->map_load_bias); |
| 1075 | EXPECT_EQ(PROT_READ | PROT_WRITE, frame->map_flags); |
| 1076 | } |
| 1077 | |
Christopher Ferris | 9d0ad23 | 2018-10-12 16:33:42 -0700 | [diff] [blame] | 1078 | TEST_F(UnwinderTest, dex_pc_max_frames) { |
| 1079 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 0)); |
| 1080 | regs_.set_pc(0x1000); |
| 1081 | regs_.set_sp(0x10000); |
| 1082 | regs_.FakeSetDexPc(0xa3400); |
| 1083 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1084 | Unwinder unwinder(1, maps_.get(), ®s_, process_memory_); |
Christopher Ferris | 9d0ad23 | 2018-10-12 16:33:42 -0700 | [diff] [blame] | 1085 | unwinder.Unwind(); |
| 1086 | EXPECT_EQ(ERROR_MAX_FRAMES_EXCEEDED, unwinder.LastErrorCode()); |
| 1087 | |
| 1088 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 1089 | |
| 1090 | auto* frame = &unwinder.frames()[0]; |
| 1091 | EXPECT_EQ(0U, frame->num); |
| 1092 | EXPECT_EQ(0x400U, frame->rel_pc); |
| 1093 | EXPECT_EQ(0xa3400U, frame->pc); |
| 1094 | EXPECT_EQ(0x10000U, frame->sp); |
| 1095 | EXPECT_EQ("", frame->function_name); |
| 1096 | EXPECT_EQ(0U, frame->function_offset); |
| 1097 | EXPECT_EQ("/fake/fake.vdex", frame->map_name); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1098 | EXPECT_EQ(0U, frame->map_elf_start_offset); |
| 1099 | EXPECT_EQ(0U, frame->map_exact_offset); |
Christopher Ferris | 9d0ad23 | 2018-10-12 16:33:42 -0700 | [diff] [blame] | 1100 | EXPECT_EQ(0xa3000U, frame->map_start); |
| 1101 | EXPECT_EQ(0xa4000U, frame->map_end); |
| 1102 | EXPECT_EQ(0U, frame->map_load_bias); |
| 1103 | EXPECT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, frame->map_flags); |
| 1104 | } |
| 1105 | |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1106 | // Verify format frame code. |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1107 | TEST_F(UnwinderTest, format_frame) { |
| 1108 | RegsFake regs_arm(10); |
| 1109 | regs_arm.FakeSetArch(ARCH_ARM); |
| 1110 | Unwinder unwinder32(10, maps_.get(), ®s_arm, process_memory_); |
| 1111 | |
| 1112 | RegsFake regs_arm64(10); |
| 1113 | regs_arm64.FakeSetArch(ARCH_ARM64); |
| 1114 | Unwinder unwinder64(10, maps_.get(), ®s_arm64, process_memory_); |
| 1115 | |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1116 | FrameData frame; |
| 1117 | frame.num = 1; |
| 1118 | frame.rel_pc = 0x1000; |
| 1119 | frame.pc = 0x4000; |
| 1120 | frame.sp = 0x1000; |
| 1121 | frame.function_name = "function"; |
| 1122 | frame.function_offset = 100; |
| 1123 | frame.map_name = "/fake/libfake.so"; |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1124 | frame.map_elf_start_offset = 0x2000; |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1125 | frame.map_start = 0x3000; |
| 1126 | frame.map_end = 0x6000; |
| 1127 | frame.map_flags = PROT_READ; |
| 1128 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1129 | EXPECT_EQ(" #01 pc 0000000000001000 /fake/libfake.so (offset 0x2000) (function+100)", |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1130 | unwinder64.FormatFrame(frame)); |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1131 | EXPECT_EQ(" #01 pc 00001000 /fake/libfake.so (offset 0x2000) (function+100)", |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1132 | unwinder32.FormatFrame(frame)); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1133 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1134 | frame.map_elf_start_offset = 0; |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1135 | EXPECT_EQ(" #01 pc 0000000000001000 /fake/libfake.so (function+100)", |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1136 | unwinder64.FormatFrame(frame)); |
| 1137 | EXPECT_EQ(" #01 pc 00001000 /fake/libfake.so (function+100)", unwinder32.FormatFrame(frame)); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1138 | |
| 1139 | frame.function_offset = 0; |
| 1140 | EXPECT_EQ(" #01 pc 0000000000001000 /fake/libfake.so (function)", |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1141 | unwinder64.FormatFrame(frame)); |
| 1142 | EXPECT_EQ(" #01 pc 00001000 /fake/libfake.so (function)", unwinder32.FormatFrame(frame)); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1143 | |
Christopher Ferris | eb0772f | 2018-12-05 15:57:02 -0800 | [diff] [blame] | 1144 | // Verify the function name is demangled. |
| 1145 | frame.function_name = "_ZN4funcEv"; |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1146 | EXPECT_EQ(" #01 pc 0000000000001000 /fake/libfake.so (func())", unwinder64.FormatFrame(frame)); |
| 1147 | EXPECT_EQ(" #01 pc 00001000 /fake/libfake.so (func())", unwinder32.FormatFrame(frame)); |
Christopher Ferris | eb0772f | 2018-12-05 15:57:02 -0800 | [diff] [blame] | 1148 | |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1149 | frame.function_name = ""; |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1150 | EXPECT_EQ(" #01 pc 0000000000001000 /fake/libfake.so", unwinder64.FormatFrame(frame)); |
| 1151 | EXPECT_EQ(" #01 pc 00001000 /fake/libfake.so", unwinder32.FormatFrame(frame)); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1152 | |
| 1153 | frame.map_name = ""; |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1154 | EXPECT_EQ(" #01 pc 0000000000001000 <anonymous:3000>", unwinder64.FormatFrame(frame)); |
| 1155 | EXPECT_EQ(" #01 pc 00001000 <anonymous:3000>", unwinder32.FormatFrame(frame)); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1156 | |
| 1157 | frame.map_start = 0; |
| 1158 | frame.map_end = 0; |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1159 | EXPECT_EQ(" #01 pc 0000000000001000 <unknown>", unwinder64.FormatFrame(frame)); |
| 1160 | EXPECT_EQ(" #01 pc 00001000 <unknown>", unwinder32.FormatFrame(frame)); |
| 1161 | } |
| 1162 | |
| 1163 | TEST_F(UnwinderTest, format_frame_build_id) { |
| 1164 | RegsFake regs(10); |
| 1165 | regs.FakeSetArch(ARCH_ARM); |
| 1166 | Unwinder unwinder(10, maps_.get(), ®s, process_memory_); |
| 1167 | |
| 1168 | FrameData frame; |
| 1169 | frame.num = 1; |
| 1170 | frame.rel_pc = 0x1000; |
| 1171 | frame.pc = 0x4000; |
| 1172 | frame.sp = 0x1000; |
| 1173 | frame.function_name = "function"; |
| 1174 | frame.function_offset = 100; |
| 1175 | frame.map_name = "/fake/libfake.so"; |
| 1176 | frame.map_elf_start_offset = 0; |
| 1177 | frame.map_start = 0x3000; |
| 1178 | frame.map_end = 0x6000; |
| 1179 | frame.map_flags = PROT_READ; |
| 1180 | |
| 1181 | EXPECT_EQ(" #01 pc 00001000 /fake/libfake.so (function+100)", unwinder.FormatFrame(frame)); |
| 1182 | unwinder.SetDisplayBuildID(true); |
| 1183 | EXPECT_EQ(" #01 pc 00001000 /fake/libfake.so (function+100) (BuildId: 46414b45)", |
| 1184 | unwinder.FormatFrame(frame)); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1185 | } |
| 1186 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1187 | static std::string ArchToString(ArchEnum arch) { |
| 1188 | if (arch == ARCH_ARM) { |
| 1189 | return "Arm"; |
| 1190 | } else if (arch == ARCH_ARM64) { |
| 1191 | return "Arm64"; |
| 1192 | } else if (arch == ARCH_X86) { |
| 1193 | return "X86"; |
| 1194 | } else if (arch == ARCH_X86_64) { |
| 1195 | return "X86_64"; |
| 1196 | } else { |
| 1197 | return "Unknown"; |
| 1198 | } |
| 1199 | } |
| 1200 | |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1201 | // Verify format frame code. |
Christopher Ferris | 7813345 | 2019-03-14 13:44:38 -0700 | [diff] [blame^] | 1202 | TEST_F(UnwinderTest, format_frame_by_arch) { |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1203 | std::vector<Regs*> reg_list; |
| 1204 | RegsArm* arm = new RegsArm; |
| 1205 | arm->set_pc(0x2300); |
| 1206 | arm->set_sp(0x10000); |
| 1207 | reg_list.push_back(arm); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1208 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1209 | RegsArm64* arm64 = new RegsArm64; |
| 1210 | arm64->set_pc(0x2300); |
| 1211 | arm64->set_sp(0x10000); |
| 1212 | reg_list.push_back(arm64); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1213 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1214 | RegsX86* x86 = new RegsX86; |
| 1215 | x86->set_pc(0x2300); |
| 1216 | x86->set_sp(0x10000); |
| 1217 | reg_list.push_back(x86); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1218 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1219 | RegsX86_64* x86_64 = new RegsX86_64; |
| 1220 | x86_64->set_pc(0x2300); |
| 1221 | x86_64->set_sp(0x10000); |
| 1222 | reg_list.push_back(x86_64); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1223 | |
Douglas Leung | 61b1a1a | 2017-11-08 10:53:53 +0100 | [diff] [blame] | 1224 | RegsMips* mips = new RegsMips; |
| 1225 | mips->set_pc(0x2300); |
| 1226 | mips->set_sp(0x10000); |
| 1227 | reg_list.push_back(mips); |
| 1228 | |
| 1229 | RegsMips64* mips64 = new RegsMips64; |
| 1230 | mips64->set_pc(0x2300); |
| 1231 | mips64->set_sp(0x10000); |
| 1232 | reg_list.push_back(mips64); |
| 1233 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1234 | for (auto regs : reg_list) { |
| 1235 | ElfInterfaceFake::FakePushFunctionData(FunctionData("Frame0", 10)); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1236 | |
Christopher Ferris | a09c4a6 | 2018-12-13 16:08:50 -0800 | [diff] [blame] | 1237 | Unwinder unwinder(64, maps_.get(), regs, process_memory_); |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1238 | unwinder.Unwind(); |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1239 | |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1240 | ASSERT_EQ(1U, unwinder.NumFrames()); |
| 1241 | std::string expected; |
| 1242 | switch (regs->Arch()) { |
| 1243 | case ARCH_ARM: |
| 1244 | case ARCH_X86: |
Douglas Leung | 61b1a1a | 2017-11-08 10:53:53 +0100 | [diff] [blame] | 1245 | case ARCH_MIPS: |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1246 | expected = " #00 pc 00001300 /system/fake/libc.so (Frame0+10)"; |
| 1247 | break; |
| 1248 | case ARCH_ARM64: |
| 1249 | case ARCH_X86_64: |
Douglas Leung | 61b1a1a | 2017-11-08 10:53:53 +0100 | [diff] [blame] | 1250 | case ARCH_MIPS64: |
Christopher Ferris | 02fdb56 | 2017-12-08 15:04:49 -0800 | [diff] [blame] | 1251 | expected = " #00 pc 0000000000001300 /system/fake/libc.so (Frame0+10)"; |
| 1252 | break; |
| 1253 | default: |
| 1254 | expected = ""; |
| 1255 | } |
| 1256 | EXPECT_EQ(expected, unwinder.FormatFrame(0)) |
| 1257 | << "Mismatch of frame format for regs arch " << ArchToString(regs->Arch()); |
| 1258 | delete regs; |
| 1259 | } |
Christopher Ferris | f6f691b | 2017-09-25 19:23:07 -0700 | [diff] [blame] | 1260 | } |
| 1261 | |
| 1262 | } // namespace unwindstack |