michael@0: // Copyright (c) 2011 Google Inc.
michael@0: // All rights reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: // Original author: Ted Mielczarek <ted.mielczarek@gmail.com>
michael@0: 
michael@0: // synth_elf_unittest.cc:
michael@0: // Unittests for google_breakpad::synth_elf::ELF
michael@0: 
michael@0: #include <elf.h>
michael@0: 
michael@0: #include "breakpad_googletest_includes.h"
michael@0: #include "common/linux/elfutils.h"
michael@0: #include "common/linux/synth_elf.h"
michael@0: #include "common/using_std_string.h"
michael@0: 
michael@0: using google_breakpad::ElfClass32;
michael@0: using google_breakpad::ElfClass64;
michael@0: using google_breakpad::synth_elf::ELF;
michael@0: using google_breakpad::synth_elf::Notes;
michael@0: using google_breakpad::synth_elf::Section;
michael@0: using google_breakpad::synth_elf::StringTable;
michael@0: using google_breakpad::synth_elf::SymbolTable;
michael@0: using google_breakpad::test_assembler::Endianness;
michael@0: using google_breakpad::test_assembler::kBigEndian;
michael@0: using google_breakpad::test_assembler::kLittleEndian;
michael@0: using google_breakpad::test_assembler::Label;
michael@0: using ::testing::Test;
michael@0: using ::testing::Types;
michael@0: 
michael@0: class StringTableTest : public Test {
michael@0: public:
michael@0:   StringTableTest() : table(kLittleEndian) {}
michael@0: 
michael@0:   StringTable table;
michael@0: };
michael@0: 
michael@0: TEST_F(StringTableTest, Empty) {
michael@0:   EXPECT_EQ(1U, table.Size());
michael@0:   string contents;
michael@0:   ASSERT_TRUE(table.GetContents(&contents));
michael@0:   const char* kExpectedContents = "\0";
michael@0:   EXPECT_EQ(0, memcmp(kExpectedContents,
michael@0:                       contents.c_str(),
michael@0:                       contents.size()));
michael@0:   ASSERT_TRUE(table.empty_string.IsKnownConstant());
michael@0:   EXPECT_EQ(0U, table.empty_string.Value());
michael@0: }
michael@0: 
michael@0: TEST_F(StringTableTest, Basic) {
michael@0:   const string s1("table fills with strings");
michael@0:   const string s2("offsets preserved as labels");
michael@0:   const string s3("verified with tests");
michael@0:   const char* kExpectedContents = 
michael@0:     "\0table fills with strings\0"
michael@0:     "offsets preserved as labels\0"
michael@0:     "verified with tests\0";
michael@0:   Label l1(table.Add(s1));
michael@0:   Label l2(table.Add(s2));
michael@0:   Label l3(table.Add(s3));
michael@0:   string contents;
michael@0:   ASSERT_TRUE(table.GetContents(&contents));
michael@0:   EXPECT_EQ(0, memcmp(kExpectedContents,
michael@0:                       contents.c_str(),
michael@0:                       contents.size()));
michael@0:   // empty_string is at zero, other strings start at 1.
michael@0:   ASSERT_TRUE(l1.IsKnownConstant());
michael@0:   EXPECT_EQ(1U, l1.Value());
michael@0:   // Each string has an extra byte for a trailing null.
michael@0:   EXPECT_EQ(1 + s1.length() + 1, l2.Value());
michael@0:   EXPECT_EQ(1 + s1.length() + 1 + s2.length() + 1, l3.Value());
michael@0: }
michael@0: 
michael@0: TEST_F(StringTableTest, Duplicates) {
michael@0:   const string s1("string 1");
michael@0:   const string s2("string 2");
michael@0:   const string s3("");
michael@0:   const char* kExpectedContents = "\0string 1\0string 2\0";
michael@0:   Label l1(table.Add(s1));
michael@0:   Label l2(table.Add(s2));
michael@0:   // Adding strings twice should return the same Label.
michael@0:   Label l3(table.Add(s3));
michael@0:   Label l4(table.Add(s2));
michael@0:   string contents;
michael@0:   ASSERT_TRUE(table.GetContents(&contents));
michael@0:   EXPECT_EQ(0, memcmp(kExpectedContents,
michael@0:                       contents.c_str(),
michael@0:                       contents.size()));
michael@0:   EXPECT_EQ(0U, table.empty_string.Value());
michael@0:   EXPECT_EQ(table.empty_string.Value(), l3.Value());
michael@0:   EXPECT_EQ(l2.Value(), l4.Value());
michael@0: }
michael@0: 
michael@0: class SymbolTableTest : public Test {};
michael@0: 
michael@0: TEST_F(SymbolTableTest, Simple32) {
michael@0:   StringTable table(kLittleEndian);
michael@0:   SymbolTable syms(kLittleEndian, 4, table);
michael@0: 
michael@0:   const string kFuncName1 = "superfunc";
michael@0:   const uint32_t kFuncAddr1 = 0x10001000;
michael@0:   const uint32_t kFuncSize1 = 0x10;
michael@0:   const string kFuncName2 = "awesomefunc";
michael@0:   const uint32_t kFuncAddr2 = 0x20002000;
michael@0:   const uint32_t kFuncSize2 = 0x2f;
michael@0:   const string kFuncName3 = "megafunc";
michael@0:   const uint32_t kFuncAddr3 = 0x30003000;
michael@0:   const uint32_t kFuncSize3 = 0x3c;
michael@0: 
michael@0:   syms.AddSymbol(kFuncName1, kFuncAddr1, kFuncSize1,
michael@0:                  ELF32_ST_INFO(STB_GLOBAL, STT_FUNC),
michael@0:                  SHN_UNDEF + 1);
michael@0:   syms.AddSymbol(kFuncName2, kFuncAddr2, kFuncSize2,
michael@0:                  ELF32_ST_INFO(STB_LOCAL, STT_FUNC),
michael@0:                  SHN_UNDEF + 2);
michael@0:   syms.AddSymbol(kFuncName3, kFuncAddr3, kFuncSize3,
michael@0:                  ELF32_ST_INFO(STB_LOCAL, STT_FUNC),
michael@0:                  SHN_UNDEF + 3);
michael@0: 
michael@0:   const char kExpectedStringTable[] = "\0superfunc\0awesomefunc\0megafunc";
michael@0:   const size_t kExpectedStringTableSize = sizeof(kExpectedStringTable);
michael@0:   EXPECT_EQ(kExpectedStringTableSize, table.Size());
michael@0:   string table_contents;
michael@0:   table.GetContents(&table_contents);
michael@0:   EXPECT_EQ(0, memcmp(kExpectedStringTable,
michael@0:                       table_contents.c_str(),
michael@0:                       table_contents.size()));
michael@0: 
michael@0:   const uint8_t kExpectedSymbolContents[] = {
michael@0:     // Symbol 1
michael@0:     0x01, 0x00, 0x00, 0x00, // name
michael@0:     0x00, 0x10, 0x00, 0x10, // value
michael@0:     0x10, 0x00, 0x00, 0x00, // size
michael@0:     ELF32_ST_INFO(STB_GLOBAL, STT_FUNC), // info
michael@0:     0x00, // other
michael@0:     0x01, 0x00, // shndx
michael@0:     // Symbol 2
michael@0:     0x0B, 0x00, 0x00, 0x00, // name
michael@0:     0x00, 0x20, 0x00, 0x20, // value
michael@0:     0x2f, 0x00, 0x00, 0x00, // size
michael@0:     ELF32_ST_INFO(STB_LOCAL, STT_FUNC), // info
michael@0:     0x00, // other
michael@0:     0x02, 0x00, // shndx
michael@0:     // Symbol 3
michael@0:     0x17, 0x00, 0x00, 0x00, // name
michael@0:     0x00, 0x30, 0x00, 0x30, // value
michael@0:     0x3c, 0x00, 0x00, 0x00, // size
michael@0:     ELF32_ST_INFO(STB_LOCAL, STT_FUNC), // info
michael@0:     0x00, // other
michael@0:     0x03, 0x00, // shndx
michael@0:   };
michael@0:   const size_t kExpectedSymbolSize = sizeof(kExpectedSymbolContents);
michael@0:   EXPECT_EQ(kExpectedSymbolSize, syms.Size());
michael@0: 
michael@0:   string symbol_contents;
michael@0:   syms.GetContents(&symbol_contents);
michael@0:   EXPECT_EQ(0, memcmp(kExpectedSymbolContents,
michael@0:                       symbol_contents.c_str(),
michael@0:                       symbol_contents.size()));
michael@0: }
michael@0: 
michael@0: template<typename ElfClass>
michael@0: class BasicElf : public Test {};
michael@0: 
michael@0: // Doesn't seem worthwhile writing the tests to be endian-independent
michael@0: // when they're unlikely to ever be run on big-endian systems.
michael@0: #if defined(__i386__) || defined(__x86_64__)
michael@0: 
michael@0: typedef Types<ElfClass32, ElfClass64> ElfClasses;
michael@0: 
michael@0: TYPED_TEST_CASE(BasicElf, ElfClasses);
michael@0: 
michael@0: TYPED_TEST(BasicElf, EmptyLE) {
michael@0:   typedef typename TypeParam::Ehdr Ehdr;
michael@0:   typedef typename TypeParam::Phdr Phdr;
michael@0:   typedef typename TypeParam::Shdr Shdr;
michael@0:   const size_t kStringTableSize = sizeof("\0.shstrtab");
michael@0:   const size_t kStringTableAlign = 4 - kStringTableSize % 4;
michael@0:   const size_t kExpectedSize = sizeof(Ehdr) +
michael@0:     // Two sections, SHT_NULL + the section header string table.
michael@0:     2 * sizeof(Shdr) +
michael@0:     kStringTableSize + kStringTableAlign;
michael@0: 
michael@0:   // It doesn't really matter that the machine type is right for the class.
michael@0:   ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
michael@0:   elf.Finish();
michael@0:   EXPECT_EQ(kExpectedSize, elf.Size());
michael@0: 
michael@0:   string contents;
michael@0:   ASSERT_TRUE(elf.GetContents(&contents));
michael@0:   ASSERT_EQ(kExpectedSize, contents.size());
michael@0:   const Ehdr* header =
michael@0:     reinterpret_cast<const Ehdr*>(contents.data());
michael@0:   const uint8_t kIdent[] = {
michael@0:     ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3,
michael@0:     TypeParam::kClass, ELFDATA2LSB, EV_CURRENT, ELFOSABI_SYSV,
michael@0:     0, 0, 0, 0, 0, 0, 0, 0
michael@0:   };
michael@0:   EXPECT_EQ(0, memcmp(kIdent, header->e_ident, sizeof(kIdent)));
michael@0:   EXPECT_EQ(ET_EXEC, header->e_type);
michael@0:   EXPECT_EQ(EM_386, header->e_machine);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(EV_CURRENT), header->e_version);
michael@0:   EXPECT_EQ(0U, header->e_entry);
michael@0:   EXPECT_EQ(0U, header->e_phoff);
michael@0:   EXPECT_EQ(sizeof(Ehdr) + kStringTableSize + kStringTableAlign,
michael@0:             header->e_shoff);
michael@0:   EXPECT_EQ(0U, header->e_flags);
michael@0:   EXPECT_EQ(sizeof(Ehdr), header->e_ehsize);
michael@0:   EXPECT_EQ(sizeof(Phdr), header->e_phentsize);
michael@0:   EXPECT_EQ(0, header->e_phnum);
michael@0:   EXPECT_EQ(sizeof(Shdr), header->e_shentsize);
michael@0:   EXPECT_EQ(2, header->e_shnum);
michael@0:   EXPECT_EQ(1, header->e_shstrndx);
michael@0: 
michael@0:   const Shdr* shdr =
michael@0:     reinterpret_cast<const Shdr*>(contents.data() + header->e_shoff);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_name);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(SHT_NULL), shdr[0].sh_type);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_flags);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_addr);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_offset);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_size);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_link);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_info);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_addralign);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_entsize);
michael@0: 
michael@0:   EXPECT_EQ(1U, shdr[1].sh_name);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(SHT_STRTAB), shdr[1].sh_type);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_flags);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_addr);
michael@0:   EXPECT_EQ(sizeof(Ehdr), shdr[1].sh_offset);
michael@0:   EXPECT_EQ(kStringTableSize, shdr[1].sh_size);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_link);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_info);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_addralign);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_entsize);
michael@0: }
michael@0: 
michael@0: TYPED_TEST(BasicElf, BasicLE) {
michael@0:   typedef typename TypeParam::Ehdr Ehdr;
michael@0:   typedef typename TypeParam::Phdr Phdr;
michael@0:   typedef typename TypeParam::Shdr Shdr;
michael@0:   const size_t kStringTableSize = sizeof("\0.text\0.bss\0.shstrtab");
michael@0:   const size_t kStringTableAlign = 4 - kStringTableSize % 4;
michael@0:   const size_t kExpectedSize = sizeof(Ehdr) +
michael@0:     // Four sections, SHT_NULL + the section header string table +
michael@0:     // 4096 bytes of the size-aligned .text section + one program header.
michael@0:     sizeof(Phdr) + 4 * sizeof(Shdr) + 4096 +
michael@0:     kStringTableSize + kStringTableAlign;
michael@0: 
michael@0:   // It doesn't really matter that the machine type is right for the class.
michael@0:   ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
michael@0:   Section text(kLittleEndian);
michael@0:   text.Append(4094, 0);
michael@0:   int text_idx = elf.AddSection(".text", text, SHT_PROGBITS);
michael@0:   Section bss(kLittleEndian);
michael@0:   bss.Append(16, 0);
michael@0:   int bss_idx = elf.AddSection(".bss", bss, SHT_NOBITS);
michael@0:   elf.AddSegment(text_idx, bss_idx, PT_LOAD);
michael@0:   elf.Finish();
michael@0:   EXPECT_EQ(kExpectedSize, elf.Size());
michael@0: 
michael@0:   string contents;
michael@0:   ASSERT_TRUE(elf.GetContents(&contents));
michael@0:   ASSERT_EQ(kExpectedSize, contents.size());
michael@0:   const Ehdr* header =
michael@0:     reinterpret_cast<const Ehdr*>(contents.data());
michael@0:   const uint8_t kIdent[] = {
michael@0:     ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3,
michael@0:     TypeParam::kClass, ELFDATA2LSB, EV_CURRENT, ELFOSABI_SYSV,
michael@0:     0, 0, 0, 0, 0, 0, 0, 0
michael@0:   };
michael@0:   EXPECT_EQ(0, memcmp(kIdent, header->e_ident, sizeof(kIdent)));
michael@0:   EXPECT_EQ(ET_EXEC, header->e_type);
michael@0:   EXPECT_EQ(EM_386, header->e_machine);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(EV_CURRENT), header->e_version);
michael@0:   EXPECT_EQ(0U, header->e_entry);
michael@0:   EXPECT_EQ(sizeof(Ehdr), header->e_phoff);
michael@0:   EXPECT_EQ(sizeof(Ehdr) + sizeof(Phdr) + 4096 + kStringTableSize +
michael@0:             kStringTableAlign, header->e_shoff);
michael@0:   EXPECT_EQ(0U, header->e_flags);
michael@0:   EXPECT_EQ(sizeof(Ehdr), header->e_ehsize);
michael@0:   EXPECT_EQ(sizeof(Phdr), header->e_phentsize);
michael@0:   EXPECT_EQ(1, header->e_phnum);
michael@0:   EXPECT_EQ(sizeof(Shdr), header->e_shentsize);
michael@0:   EXPECT_EQ(4, header->e_shnum);
michael@0:   EXPECT_EQ(3, header->e_shstrndx);
michael@0: 
michael@0:   const Shdr* shdr =
michael@0:     reinterpret_cast<const Shdr*>(contents.data() + header->e_shoff);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_name);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(SHT_NULL), shdr[0].sh_type);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_flags);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_addr);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_offset);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_size);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_link);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_info);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_addralign);
michael@0:   EXPECT_EQ(0U, shdr[0].sh_entsize);
michael@0: 
michael@0:   EXPECT_EQ(1U, shdr[1].sh_name);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(SHT_PROGBITS), shdr[1].sh_type);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_flags);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_addr);
michael@0:   EXPECT_EQ(sizeof(Ehdr) + sizeof(Phdr), shdr[1].sh_offset);
michael@0:   EXPECT_EQ(4094U, shdr[1].sh_size);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_link);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_info);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_addralign);
michael@0:   EXPECT_EQ(0U, shdr[1].sh_entsize);
michael@0: 
michael@0:   EXPECT_EQ(sizeof("\0.text"), shdr[2].sh_name);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(SHT_NOBITS), shdr[2].sh_type);
michael@0:   EXPECT_EQ(0U, shdr[2].sh_flags);
michael@0:   EXPECT_EQ(0U, shdr[2].sh_addr);
michael@0:   EXPECT_EQ(0U, shdr[2].sh_offset);
michael@0:   EXPECT_EQ(16U, shdr[2].sh_size);
michael@0:   EXPECT_EQ(0U, shdr[2].sh_link);
michael@0:   EXPECT_EQ(0U, shdr[2].sh_info);
michael@0:   EXPECT_EQ(0U, shdr[2].sh_addralign);
michael@0:   EXPECT_EQ(0U, shdr[2].sh_entsize);
michael@0: 
michael@0:   EXPECT_EQ(sizeof("\0.text\0.bss"), shdr[3].sh_name);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(SHT_STRTAB), shdr[3].sh_type);
michael@0:   EXPECT_EQ(0U, shdr[3].sh_flags);
michael@0:   EXPECT_EQ(0U, shdr[3].sh_addr);
michael@0:   EXPECT_EQ(sizeof(Ehdr) + sizeof(Phdr) + 4096, shdr[3].sh_offset);
michael@0:   EXPECT_EQ(kStringTableSize, shdr[3].sh_size);
michael@0:   EXPECT_EQ(0U, shdr[3].sh_link);
michael@0:   EXPECT_EQ(0U, shdr[3].sh_info);
michael@0:   EXPECT_EQ(0U, shdr[3].sh_addralign);
michael@0:   EXPECT_EQ(0U, shdr[3].sh_entsize);
michael@0: 
michael@0:   const Phdr* phdr =
michael@0:     reinterpret_cast<const Phdr*>(contents.data() + header->e_phoff);
michael@0:   EXPECT_EQ(static_cast<unsigned int>(PT_LOAD), phdr->p_type);
michael@0:   EXPECT_EQ(sizeof(Ehdr) + sizeof(Phdr), phdr->p_offset);
michael@0:   EXPECT_EQ(0U, phdr->p_vaddr);
michael@0:   EXPECT_EQ(0U, phdr->p_paddr);
michael@0:   EXPECT_EQ(4096U, phdr->p_filesz);
michael@0:   EXPECT_EQ(4096U + 16U, phdr->p_memsz);
michael@0:   EXPECT_EQ(0U, phdr->p_flags);
michael@0:   EXPECT_EQ(0U, phdr->p_align);
michael@0: }
michael@0: 
michael@0: class ElfNotesTest : public Test {};
michael@0: 
michael@0: TEST_F(ElfNotesTest, Empty) {
michael@0:   Notes notes(kLittleEndian);
michael@0:   string contents;
michael@0:   ASSERT_TRUE(notes.GetContents(&contents));
michael@0:   EXPECT_EQ(0U, contents.size());
michael@0: }
michael@0: 
michael@0: TEST_F(ElfNotesTest, Notes) {
michael@0:   Notes notes(kLittleEndian);
michael@0:   notes.AddNote(1, "Linux", reinterpret_cast<const uint8_t *>("\x42\x02\0\0"),
michael@0:                 4);
michael@0:   notes.AddNote(2, "a", reinterpret_cast<const uint8_t *>("foobar"),
michael@0:                 sizeof("foobar") - 1);
michael@0: 
michael@0:   const uint8_t kExpectedNotesContents[] = {
michael@0:     // Note 1
michael@0:     0x06, 0x00, 0x00, 0x00, // name size, including terminating zero
michael@0:     0x04, 0x00, 0x00, 0x00, // desc size
michael@0:     0x01, 0x00, 0x00, 0x00, // type
michael@0:     'L', 'i', 'n', 'u', 'x', 0x00, 0x00, 0x00, // padded "Linux"
michael@0:     0x42, 0x02, 0x00, 0x00, // desc
michael@0:     // Note 2
michael@0:     0x02, 0x00, 0x00, 0x00, // name size
michael@0:     0x06, 0x00, 0x00, 0x00, // desc size
michael@0:     0x02, 0x00, 0x00, 0x00, // type
michael@0:     'a',  0x00, 0x00, 0x00, // padded "a"
michael@0:     'f', 'o', 'o', 'b', 'a', 'r', 0x00, 0x00, // padded "foobar"
michael@0:   };
michael@0:   const size_t kExpectedNotesSize = sizeof(kExpectedNotesContents);
michael@0:   EXPECT_EQ(kExpectedNotesSize, notes.Size());
michael@0: 
michael@0:   string notes_contents;
michael@0:   ASSERT_TRUE(notes.GetContents(&notes_contents));
michael@0:   EXPECT_EQ(0, memcmp(kExpectedNotesContents,
michael@0:                       notes_contents.data(),
michael@0:                       notes_contents.size()));
michael@0: }
michael@0: 
michael@0: #endif  // defined(__i386__) || defined(__x86_64__)