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comparison: toolkit/crashreporter/google-breakpad/src/common/linux/dump_symbols_unittest.cc
toolkit/crashreporter/google-breakpad/src/common/linux/dump_symbols_unittest.cc
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:6bf969911f92 |
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| 1 // Copyright (c) 2011 Google Inc. | |
| 2 // All rights reserved. | |
| 3 // | |
| 4 // Redistribution and use in source and binary forms, with or without | |
| 5 // modification, are permitted provided that the following conditions are | |
| 6 // met: | |
| 7 // | |
| 8 // * Redistributions of source code must retain the above copyright | |
| 9 // notice, this list of conditions and the following disclaimer. | |
| 10 // * Redistributions in binary form must reproduce the above | |
| 11 // copyright notice, this list of conditions and the following disclaimer | |
| 12 // in the documentation and/or other materials provided with the | |
| 13 // distribution. | |
| 14 // * Neither the name of Google Inc. nor the names of its | |
| 15 // contributors may be used to endorse or promote products derived from | |
| 16 // this software without specific prior written permission. | |
| 17 // | |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 | |
| 30 // Original author: Ted Mielczarek <ted.mielczarek@gmail.com> | |
| 31 | |
| 32 // dump_symbols_unittest.cc: | |
| 33 // Unittests for google_breakpad::DumpSymbols | |
| 34 | |
| 35 #include <elf.h> | |
| 36 #include <link.h> | |
| 37 #include <stdio.h> | |
| 38 | |
| 39 #include <sstream> | |
| 40 #include <vector> | |
| 41 | |
| 42 #include "breakpad_googletest_includes.h" | |
| 43 #include "common/linux/synth_elf.h" | |
| 44 #include "common/module.h" | |
| 45 #include "common/using_std_string.h" | |
| 46 | |
| 47 namespace google_breakpad { | |
| 48 bool ReadSymbolDataInternal(const uint8_t* obj_file, | |
| 49 const string& obj_filename, | |
| 50 const std::vector<string>& debug_dir, | |
| 51 SymbolData symbol_data, | |
| 52 Module** module); | |
| 53 } | |
| 54 | |
| 55 using google_breakpad::synth_elf::ELF; | |
| 56 using google_breakpad::synth_elf::StringTable; | |
| 57 using google_breakpad::synth_elf::SymbolTable; | |
| 58 using google_breakpad::test_assembler::kLittleEndian; | |
| 59 using google_breakpad::test_assembler::Section; | |
| 60 using google_breakpad::Module; | |
| 61 using google_breakpad::ReadSymbolDataInternal; | |
| 62 using std::stringstream; | |
| 63 using std::vector; | |
| 64 using ::testing::Test; | |
| 65 | |
| 66 class DumpSymbols : public Test { | |
| 67 public: | |
| 68 void GetElfContents(ELF& elf) { | |
| 69 string contents; | |
| 70 ASSERT_TRUE(elf.GetContents(&contents)); | |
| 71 ASSERT_LT(0U, contents.size()); | |
| 72 | |
| 73 elfdata_v.clear(); | |
| 74 elfdata_v.insert(elfdata_v.begin(), contents.begin(), contents.end()); | |
| 75 elfdata = &elfdata_v[0]; | |
| 76 } | |
| 77 | |
| 78 vector<uint8_t> elfdata_v; | |
| 79 uint8_t* elfdata; | |
| 80 }; | |
| 81 | |
| 82 TEST_F(DumpSymbols, Invalid) { | |
| 83 Elf32_Ehdr header; | |
| 84 memset(&header, 0, sizeof(header)); | |
| 85 Module* module; | |
| 86 EXPECT_FALSE(ReadSymbolDataInternal(reinterpret_cast<uint8_t*>(&header), | |
| 87 "foo", | |
| 88 vector<string>(), | |
| 89 ALL_SYMBOL_DATA, | |
| 90 &module)); | |
| 91 } | |
| 92 | |
| 93 TEST_F(DumpSymbols, SimplePublic32) { | |
| 94 ELF elf(EM_386, ELFCLASS32, kLittleEndian); | |
| 95 // Zero out text section for simplicity. | |
| 96 Section text(kLittleEndian); | |
| 97 text.Append(4096, 0); | |
| 98 elf.AddSection(".text", text, SHT_PROGBITS); | |
| 99 | |
| 100 // Add a public symbol. | |
| 101 StringTable table(kLittleEndian); | |
| 102 SymbolTable syms(kLittleEndian, 4, table); | |
| 103 syms.AddSymbol("superfunc", (uint32_t)0x1000, (uint32_t)0x10, | |
| 104 ELF32_ST_INFO(STB_GLOBAL, STT_FUNC), | |
| 105 SHN_UNDEF + 1); | |
| 106 int index = elf.AddSection(".dynstr", table, SHT_STRTAB); | |
| 107 elf.AddSection(".dynsym", syms, | |
| 108 SHT_DYNSYM, // type | |
| 109 SHF_ALLOC, // flags | |
| 110 0, // addr | |
| 111 index, // link | |
| 112 sizeof(Elf32_Sym)); // entsize | |
| 113 | |
| 114 elf.Finish(); | |
| 115 GetElfContents(elf); | |
| 116 | |
| 117 Module* module; | |
| 118 EXPECT_TRUE(ReadSymbolDataInternal(elfdata, | |
| 119 "foo", | |
| 120 vector<string>(), | |
| 121 ALL_SYMBOL_DATA, | |
| 122 &module)); | |
| 123 | |
| 124 stringstream s; | |
| 125 module->Write(s, ALL_SYMBOL_DATA); | |
| 126 EXPECT_EQ("MODULE Linux x86 000000000000000000000000000000000 foo\n" | |
| 127 "PUBLIC 1000 0 superfunc\n", | |
| 128 s.str()); | |
| 129 delete module; | |
| 130 } | |
| 131 | |
| 132 TEST_F(DumpSymbols, SimplePublic64) { | |
| 133 ELF elf(EM_X86_64, ELFCLASS64, kLittleEndian); | |
| 134 // Zero out text section for simplicity. | |
| 135 Section text(kLittleEndian); | |
| 136 text.Append(4096, 0); | |
| 137 elf.AddSection(".text", text, SHT_PROGBITS); | |
| 138 | |
| 139 // Add a public symbol. | |
| 140 StringTable table(kLittleEndian); | |
| 141 SymbolTable syms(kLittleEndian, 8, table); | |
| 142 syms.AddSymbol("superfunc", (uint64_t)0x1000, (uint64_t)0x10, | |
| 143 ELF64_ST_INFO(STB_GLOBAL, STT_FUNC), | |
| 144 SHN_UNDEF + 1); | |
| 145 int index = elf.AddSection(".dynstr", table, SHT_STRTAB); | |
| 146 elf.AddSection(".dynsym", syms, | |
| 147 SHT_DYNSYM, // type | |
| 148 SHF_ALLOC, // flags | |
| 149 0, // addr | |
| 150 index, // link | |
| 151 sizeof(Elf64_Sym)); // entsize | |
| 152 | |
| 153 elf.Finish(); | |
| 154 GetElfContents(elf); | |
| 155 | |
| 156 Module* module; | |
| 157 EXPECT_TRUE(ReadSymbolDataInternal(elfdata, | |
| 158 "foo", | |
| 159 vector<string>(), | |
| 160 ALL_SYMBOL_DATA, | |
| 161 &module)); | |
| 162 | |
| 163 stringstream s; | |
| 164 module->Write(s, ALL_SYMBOL_DATA); | |
| 165 EXPECT_EQ("MODULE Linux x86_64 000000000000000000000000000000000 foo\n" | |
| 166 "PUBLIC 1000 0 superfunc\n", | |
| 167 s.str()); | |
| 168 } |
