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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/trace_event/process_memory_maps_dump_provider.h" | |
| 6 | |
| 7 #include <fstream> | |
| 8 #include <sstream> | |
| 9 | |
| 10 #include "base/trace_event/process_memory_dump.h" | |
| 11 #include "base/trace_event/process_memory_maps.h" | |
| 12 #include "base/trace_event/trace_event_argument.h" | |
| 13 #include "testing/gtest/include/gtest/gtest.h" | |
| 14 | |
| 15 namespace base { | |
| 16 namespace trace_event { | |
| 17 | |
| 18 #if defined(OS_LINUX) || defined(OS_ANDROID) | |
| 19 namespace { | |
| 20 const char kTestSmaps1[] = | |
| 21 "00400000-004be000 r-xp 00000000 fc:01 1234 /file/1\n" | |
| 22 "Size: 760 kB\n" | |
| 23 "Rss: 296 kB\n" | |
| 24 "Pss: 162 kB\n" | |
| 25 "Shared_Clean: 228 kB\n" | |
| 26 "Shared_Dirty: 0 kB\n" | |
| 27 "Private_Clean: 0 kB\n" | |
| 28 "Private_Dirty: 68 kB\n" | |
| 29 "Referenced: 296 kB\n" | |
| 30 "Anonymous: 68 kB\n" | |
| 31 "AnonHugePages: 0 kB\n" | |
| 32 "Swap: 4 kB\n" | |
| 33 "KernelPageSize: 4 kB\n" | |
| 34 "MMUPageSize: 4 kB\n" | |
| 35 "Locked: 0 kB\n" | |
| 36 "VmFlags: rd ex mr mw me dw sd\n" | |
| 37 "ff000000-ff800000 -w-p 00001080 fc:01 0 /file/name with space\n" | |
| 38 "Size: 0 kB\n" | |
| 39 "Rss: 192 kB\n" | |
| 40 "Pss: 128 kB\n" | |
| 41 "Shared_Clean: 120 kB\n" | |
| 42 "Shared_Dirty: 4 kB\n" | |
| 43 "Private_Clean: 60 kB\n" | |
| 44 "Private_Dirty: 8 kB\n" | |
| 45 "Referenced: 296 kB\n" | |
| 46 "Anonymous: 0 kB\n" | |
| 47 "AnonHugePages: 0 kB\n" | |
| 48 "Swap: 0 kB\n" | |
| 49 "KernelPageSize: 4 kB\n" | |
| 50 "MMUPageSize: 4 kB\n" | |
| 51 "Locked: 0 kB\n" | |
| 52 "VmFlags: rd ex mr mw me dw sd"; | |
| 53 | |
| 54 const char kTestSmaps2[] = | |
| 55 // An invalid region, with zero size and overlapping with the last one | |
| 56 // (See crbug.com/461237). | |
| 57 "7fe7ce79c000-7fe7ce79c000 ---p 00000000 00:00 0 \n" | |
| 58 "Size: 4 kB\n" | |
| 59 "Rss: 0 kB\n" | |
| 60 "Pss: 0 kB\n" | |
| 61 "Shared_Clean: 0 kB\n" | |
| 62 "Shared_Dirty: 0 kB\n" | |
| 63 "Private_Clean: 0 kB\n" | |
| 64 "Private_Dirty: 0 kB\n" | |
| 65 "Referenced: 0 kB\n" | |
| 66 "Anonymous: 0 kB\n" | |
| 67 "AnonHugePages: 0 kB\n" | |
| 68 "Swap: 0 kB\n" | |
| 69 "KernelPageSize: 4 kB\n" | |
| 70 "MMUPageSize: 4 kB\n" | |
| 71 "Locked: 0 kB\n" | |
| 72 "VmFlags: rd ex mr mw me dw sd\n" | |
| 73 // A invalid region with its range going backwards. | |
| 74 "00400000-00200000 ---p 00000000 00:00 0 \n" | |
| 75 "Size: 4 kB\n" | |
| 76 "Rss: 0 kB\n" | |
| 77 "Pss: 0 kB\n" | |
| 78 "Shared_Clean: 0 kB\n" | |
| 79 "Shared_Dirty: 0 kB\n" | |
| 80 "Private_Clean: 0 kB\n" | |
| 81 "Private_Dirty: 0 kB\n" | |
| 82 "Referenced: 0 kB\n" | |
| 83 "Anonymous: 0 kB\n" | |
| 84 "AnonHugePages: 0 kB\n" | |
| 85 "Swap: 0 kB\n" | |
| 86 "KernelPageSize: 4 kB\n" | |
| 87 "MMUPageSize: 4 kB\n" | |
| 88 "Locked: 0 kB\n" | |
| 89 "VmFlags: rd ex mr mw me dw sd\n" | |
| 90 // A good anonymous region at the end. | |
| 91 "7fe7ce79c000-7fe7ce7a8000 ---p 00000000 00:00 0 \n" | |
| 92 "Size: 48 kB\n" | |
| 93 "Rss: 40 kB\n" | |
| 94 "Pss: 32 kB\n" | |
| 95 "Shared_Clean: 16 kB\n" | |
| 96 "Shared_Dirty: 12 kB\n" | |
| 97 "Private_Clean: 8 kB\n" | |
| 98 "Private_Dirty: 4 kB\n" | |
| 99 "Referenced: 40 kB\n" | |
| 100 "Anonymous: 16 kB\n" | |
| 101 "AnonHugePages: 0 kB\n" | |
| 102 "Swap: 0 kB\n" | |
| 103 "KernelPageSize: 4 kB\n" | |
| 104 "MMUPageSize: 4 kB\n" | |
| 105 "Locked: 0 kB\n" | |
| 106 "VmFlags: rd wr mr mw me ac sd\n"; | |
| 107 } // namespace | |
| 108 | |
| 109 TEST(ProcessMemoryMapsDumpProviderTest, ParseProcSmaps) { | |
| 110 const uint32 kProtR = ProcessMemoryMaps::VMRegion::kProtectionFlagsRead; | |
| 111 const uint32 kProtW = ProcessMemoryMaps::VMRegion::kProtectionFlagsWrite; | |
| 112 const uint32 kProtX = ProcessMemoryMaps::VMRegion::kProtectionFlagsExec; | |
| 113 | |
| 114 auto pmmdp = ProcessMemoryMapsDumpProvider::GetInstance(); | |
| 115 | |
| 116 // Emulate a non-existent /proc/self/smaps. | |
| 117 ProcessMemoryDump pmd_invalid(nullptr /* session_state */); | |
| 118 std::ifstream non_existent_file("/tmp/does-not-exist"); | |
| 119 ProcessMemoryMapsDumpProvider::proc_smaps_for_testing = &non_existent_file; | |
| 120 CHECK_EQ(false, non_existent_file.good()); | |
| 121 pmmdp->OnMemoryDump(&pmd_invalid); | |
| 122 ASSERT_FALSE(pmd_invalid.has_process_mmaps()); | |
| 123 | |
| 124 // Emulate an empty /proc/self/smaps. | |
| 125 std::ifstream empty_file("/dev/null"); | |
| 126 ProcessMemoryMapsDumpProvider::proc_smaps_for_testing = &empty_file; | |
| 127 CHECK_EQ(true, empty_file.good()); | |
| 128 pmmdp->OnMemoryDump(&pmd_invalid); | |
| 129 ASSERT_FALSE(pmd_invalid.has_process_mmaps()); | |
| 130 | |
| 131 // Parse the 1st smaps file. | |
| 132 ProcessMemoryDump pmd_1(nullptr /* session_state */); | |
| 133 std::istringstream test_smaps_1(kTestSmaps1); | |
| 134 ProcessMemoryMapsDumpProvider::proc_smaps_for_testing = &test_smaps_1; | |
| 135 pmmdp->OnMemoryDump(&pmd_1); | |
| 136 ASSERT_TRUE(pmd_1.has_process_mmaps()); | |
| 137 const auto& regions_1 = pmd_1.process_mmaps()->vm_regions(); | |
| 138 ASSERT_EQ(2UL, regions_1.size()); | |
| 139 | |
| 140 EXPECT_EQ(0x00400000UL, regions_1[0].start_address); | |
| 141 EXPECT_EQ(0x004be000UL - 0x00400000UL, regions_1[0].size_in_bytes); | |
| 142 EXPECT_EQ(kProtR | kProtX, regions_1[0].protection_flags); | |
| 143 EXPECT_EQ("/file/1", regions_1[0].mapped_file); | |
| 144 EXPECT_EQ(162 * 1024UL, regions_1[0].byte_stats_proportional_resident); | |
| 145 EXPECT_EQ(228 * 1024UL, regions_1[0].byte_stats_shared_clean_resident); | |
| 146 EXPECT_EQ(0UL, regions_1[0].byte_stats_shared_dirty_resident); | |
| 147 EXPECT_EQ(0UL, regions_1[0].byte_stats_private_clean_resident); | |
| 148 EXPECT_EQ(68 * 1024UL, regions_1[0].byte_stats_private_dirty_resident); | |
| 149 EXPECT_EQ(4 * 1024UL, regions_1[0].byte_stats_swapped); | |
| 150 | |
| 151 EXPECT_EQ(0xff000000UL, regions_1[1].start_address); | |
| 152 EXPECT_EQ(0xff800000UL - 0xff000000UL, regions_1[1].size_in_bytes); | |
| 153 EXPECT_EQ(kProtW, regions_1[1].protection_flags); | |
| 154 EXPECT_EQ("/file/name with space", regions_1[1].mapped_file); | |
| 155 EXPECT_EQ(128 * 1024UL, regions_1[1].byte_stats_proportional_resident); | |
| 156 EXPECT_EQ(120 * 1024UL, regions_1[1].byte_stats_shared_clean_resident); | |
| 157 EXPECT_EQ(4 * 1024UL, regions_1[1].byte_stats_shared_dirty_resident); | |
| 158 EXPECT_EQ(60 * 1024UL, regions_1[1].byte_stats_private_clean_resident); | |
| 159 EXPECT_EQ(8 * 1024UL, regions_1[1].byte_stats_private_dirty_resident); | |
| 160 EXPECT_EQ(0 * 1024UL, regions_1[1].byte_stats_swapped); | |
| 161 | |
| 162 // Parse the 2nd smaps file. | |
| 163 ProcessMemoryDump pmd_2(nullptr /* session_state */); | |
| 164 std::istringstream test_smaps_2(kTestSmaps2); | |
| 165 ProcessMemoryMapsDumpProvider::proc_smaps_for_testing = &test_smaps_2; | |
| 166 pmmdp->OnMemoryDump(&pmd_2); | |
| 167 ASSERT_TRUE(pmd_2.has_process_mmaps()); | |
| 168 const auto& regions_2 = pmd_2.process_mmaps()->vm_regions(); | |
| 169 ASSERT_EQ(1UL, regions_2.size()); | |
| 170 EXPECT_EQ(0x7fe7ce79c000UL, regions_2[0].start_address); | |
| 171 EXPECT_EQ(0x7fe7ce7a8000UL - 0x7fe7ce79c000UL, regions_2[0].size_in_bytes); | |
| 172 EXPECT_EQ(0U, regions_2[0].protection_flags); | |
| 173 EXPECT_EQ("", regions_2[0].mapped_file); | |
| 174 EXPECT_EQ(32 * 1024UL, regions_2[0].byte_stats_proportional_resident); | |
| 175 EXPECT_EQ(16 * 1024UL, regions_2[0].byte_stats_shared_clean_resident); | |
| 176 EXPECT_EQ(12 * 1024UL, regions_2[0].byte_stats_shared_dirty_resident); | |
| 177 EXPECT_EQ(8 * 1024UL, regions_2[0].byte_stats_private_clean_resident); | |
| 178 EXPECT_EQ(4 * 1024UL, regions_2[0].byte_stats_private_dirty_resident); | |
| 179 EXPECT_EQ(0 * 1024UL, regions_2[0].byte_stats_swapped); | |
| 180 } | |
| 181 #endif // defined(OS_LINUX) || defined(OS_ANDROID) | |
| 182 | |
| 183 } // namespace trace_event | |
| 184 } // namespace base | |
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