1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/crashreporter/google-breakpad/src/common/linux/dump_symbols_unittest.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,168 @@
1.4 +// Copyright (c) 2011 Google Inc.
1.5 +// All rights reserved.
1.6 +//
1.7 +// Redistribution and use in source and binary forms, with or without
1.8 +// modification, are permitted provided that the following conditions are
1.9 +// met:
1.10 +//
1.11 +// * Redistributions of source code must retain the above copyright
1.12 +// notice, this list of conditions and the following disclaimer.
1.13 +// * Redistributions in binary form must reproduce the above
1.14 +// copyright notice, this list of conditions and the following disclaimer
1.15 +// in the documentation and/or other materials provided with the
1.16 +// distribution.
1.17 +// * Neither the name of Google Inc. nor the names of its
1.18 +// contributors may be used to endorse or promote products derived from
1.19 +// this software without specific prior written permission.
1.20 +//
1.21 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.22 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.23 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.24 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.25 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.26 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.27 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.28 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.29 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.30 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.31 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.32 +
1.33 +// Original author: Ted Mielczarek <ted.mielczarek@gmail.com>
1.34 +
1.35 +// dump_symbols_unittest.cc:
1.36 +// Unittests for google_breakpad::DumpSymbols
1.37 +
1.38 +#include <elf.h>
1.39 +#include <link.h>
1.40 +#include <stdio.h>
1.41 +
1.42 +#include <sstream>
1.43 +#include <vector>
1.44 +
1.45 +#include "breakpad_googletest_includes.h"
1.46 +#include "common/linux/synth_elf.h"
1.47 +#include "common/module.h"
1.48 +#include "common/using_std_string.h"
1.49 +
1.50 +namespace google_breakpad {
1.51 +bool ReadSymbolDataInternal(const uint8_t* obj_file,
1.52 + const string& obj_filename,
1.53 + const std::vector<string>& debug_dir,
1.54 + SymbolData symbol_data,
1.55 + Module** module);
1.56 +}
1.57 +
1.58 +using google_breakpad::synth_elf::ELF;
1.59 +using google_breakpad::synth_elf::StringTable;
1.60 +using google_breakpad::synth_elf::SymbolTable;
1.61 +using google_breakpad::test_assembler::kLittleEndian;
1.62 +using google_breakpad::test_assembler::Section;
1.63 +using google_breakpad::Module;
1.64 +using google_breakpad::ReadSymbolDataInternal;
1.65 +using std::stringstream;
1.66 +using std::vector;
1.67 +using ::testing::Test;
1.68 +
1.69 +class DumpSymbols : public Test {
1.70 + public:
1.71 + void GetElfContents(ELF& elf) {
1.72 + string contents;
1.73 + ASSERT_TRUE(elf.GetContents(&contents));
1.74 + ASSERT_LT(0U, contents.size());
1.75 +
1.76 + elfdata_v.clear();
1.77 + elfdata_v.insert(elfdata_v.begin(), contents.begin(), contents.end());
1.78 + elfdata = &elfdata_v[0];
1.79 + }
1.80 +
1.81 + vector<uint8_t> elfdata_v;
1.82 + uint8_t* elfdata;
1.83 +};
1.84 +
1.85 +TEST_F(DumpSymbols, Invalid) {
1.86 + Elf32_Ehdr header;
1.87 + memset(&header, 0, sizeof(header));
1.88 + Module* module;
1.89 + EXPECT_FALSE(ReadSymbolDataInternal(reinterpret_cast<uint8_t*>(&header),
1.90 + "foo",
1.91 + vector<string>(),
1.92 + ALL_SYMBOL_DATA,
1.93 + &module));
1.94 +}
1.95 +
1.96 +TEST_F(DumpSymbols, SimplePublic32) {
1.97 + ELF elf(EM_386, ELFCLASS32, kLittleEndian);
1.98 + // Zero out text section for simplicity.
1.99 + Section text(kLittleEndian);
1.100 + text.Append(4096, 0);
1.101 + elf.AddSection(".text", text, SHT_PROGBITS);
1.102 +
1.103 + // Add a public symbol.
1.104 + StringTable table(kLittleEndian);
1.105 + SymbolTable syms(kLittleEndian, 4, table);
1.106 + syms.AddSymbol("superfunc", (uint32_t)0x1000, (uint32_t)0x10,
1.107 + ELF32_ST_INFO(STB_GLOBAL, STT_FUNC),
1.108 + SHN_UNDEF + 1);
1.109 + int index = elf.AddSection(".dynstr", table, SHT_STRTAB);
1.110 + elf.AddSection(".dynsym", syms,
1.111 + SHT_DYNSYM, // type
1.112 + SHF_ALLOC, // flags
1.113 + 0, // addr
1.114 + index, // link
1.115 + sizeof(Elf32_Sym)); // entsize
1.116 +
1.117 + elf.Finish();
1.118 + GetElfContents(elf);
1.119 +
1.120 + Module* module;
1.121 + EXPECT_TRUE(ReadSymbolDataInternal(elfdata,
1.122 + "foo",
1.123 + vector<string>(),
1.124 + ALL_SYMBOL_DATA,
1.125 + &module));
1.126 +
1.127 + stringstream s;
1.128 + module->Write(s, ALL_SYMBOL_DATA);
1.129 + EXPECT_EQ("MODULE Linux x86 000000000000000000000000000000000 foo\n"
1.130 + "PUBLIC 1000 0 superfunc\n",
1.131 + s.str());
1.132 + delete module;
1.133 +}
1.134 +
1.135 +TEST_F(DumpSymbols, SimplePublic64) {
1.136 + ELF elf(EM_X86_64, ELFCLASS64, kLittleEndian);
1.137 + // Zero out text section for simplicity.
1.138 + Section text(kLittleEndian);
1.139 + text.Append(4096, 0);
1.140 + elf.AddSection(".text", text, SHT_PROGBITS);
1.141 +
1.142 + // Add a public symbol.
1.143 + StringTable table(kLittleEndian);
1.144 + SymbolTable syms(kLittleEndian, 8, table);
1.145 + syms.AddSymbol("superfunc", (uint64_t)0x1000, (uint64_t)0x10,
1.146 + ELF64_ST_INFO(STB_GLOBAL, STT_FUNC),
1.147 + SHN_UNDEF + 1);
1.148 + int index = elf.AddSection(".dynstr", table, SHT_STRTAB);
1.149 + elf.AddSection(".dynsym", syms,
1.150 + SHT_DYNSYM, // type
1.151 + SHF_ALLOC, // flags
1.152 + 0, // addr
1.153 + index, // link
1.154 + sizeof(Elf64_Sym)); // entsize
1.155 +
1.156 + elf.Finish();
1.157 + GetElfContents(elf);
1.158 +
1.159 + Module* module;
1.160 + EXPECT_TRUE(ReadSymbolDataInternal(elfdata,
1.161 + "foo",
1.162 + vector<string>(),
1.163 + ALL_SYMBOL_DATA,
1.164 + &module));
1.165 +
1.166 + stringstream s;
1.167 + module->Write(s, ALL_SYMBOL_DATA);
1.168 + EXPECT_EQ("MODULE Linux x86_64 000000000000000000000000000000000 foo\n"
1.169 + "PUBLIC 1000 0 superfunc\n",
1.170 + s.str());
1.171 +}
