/* Copyright (C) 2001-present by Serge Lamikhov-Center Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifdef _MSC_VER #define _SCL_SECURE_NO_WARNINGS #endif #include #include #include using namespace ELFIO; //////////////////////////////////////////////////////////////////////////////// void checkHeader( const elfio& reader, unsigned char nClass, unsigned char encoding, unsigned char elfVersion, Elf_Half type, Elf_Half machine, Elf_Word version, Elf64_Addr entry, Elf_Word flags, Elf_Half secNum, Elf_Half segNum, unsigned char OSABI, unsigned char ABIVersion ) { EXPECT_EQ( reader.get_class(), nClass ); EXPECT_EQ( reader.get_encoding(), encoding ); EXPECT_EQ( reader.get_elf_version(), elfVersion ); EXPECT_EQ( reader.get_os_abi(), OSABI ); EXPECT_EQ( reader.get_abi_version(), ABIVersion ); EXPECT_EQ( reader.get_type(), type ); EXPECT_EQ( reader.get_machine(), machine ); EXPECT_EQ( reader.get_version(), version ); EXPECT_EQ( reader.get_entry(), entry ); EXPECT_EQ( reader.get_flags(), flags ); EXPECT_EQ( reader.sections.size(), secNum ); EXPECT_EQ( reader.segments.size(), segNum ); } //////////////////////////////////////////////////////////////////////////////// void checkSection( const section* sec, Elf_Half index, const std::string& name, Elf_Word type, Elf_Xword flags, Elf64_Addr address, Elf_Xword size, Elf_Word link, Elf_Word info, Elf_Xword addrAlign, Elf_Xword entrySize ) { EXPECT_EQ( sec->get_index(), index ); EXPECT_EQ( sec->get_name(), name ); EXPECT_EQ( sec->get_type(), type ); EXPECT_EQ( sec->get_flags(), flags ); EXPECT_EQ( sec->get_address(), address ); EXPECT_EQ( sec->get_size(), size ); EXPECT_EQ( sec->get_link(), link ); EXPECT_EQ( sec->get_info(), info ); EXPECT_EQ( sec->get_addr_align(), addrAlign ); EXPECT_EQ( sec->get_entry_size(), entrySize ); } //////////////////////////////////////////////////////////////////////////////// void checkSection( const section* sec, const std::string& name, Elf_Word type, Elf_Xword flags, Elf64_Addr address, Elf_Xword size, Elf_Word link, Elf_Word info, Elf_Xword addrAlign, Elf_Xword entrySize ) { checkSection( sec, sec->get_index(), name, type, flags, address, size, link, info, addrAlign, entrySize ); } //////////////////////////////////////////////////////////////////////////////// void checkSegment( const segment* seg, Elf_Word type, Elf64_Addr vaddr, Elf64_Addr paddr, Elf_Xword fsize, Elf_Xword msize, Elf_Word flags, Elf_Xword align ) { EXPECT_EQ( seg->get_type(), type ); EXPECT_EQ( seg->get_virtual_address(), vaddr ); EXPECT_EQ( seg->get_physical_address(), paddr ); EXPECT_EQ( seg->get_file_size(), fsize ); EXPECT_EQ( seg->get_memory_size(), msize ); EXPECT_EQ( seg->get_flags(), flags ); EXPECT_EQ( seg->get_align(), align ); } //////////////////////////////////////////////////////////////////////////////// void checkSymbol( const const_symbol_section_accessor& sr, Elf_Xword index, const std::string& name_, Elf64_Addr value_, Elf_Xword size_, unsigned char bind_, unsigned char type_, Elf_Half section_, unsigned char other_ ) { std::string name; Elf64_Addr value; Elf_Xword size; unsigned char bind; unsigned char type; Elf_Half section; unsigned char other; ASSERT_EQ( sr.get_symbol( index, name, value, size, bind, type, section, other ), true ); EXPECT_EQ( name, name_ ); EXPECT_EQ( value, value_ ); EXPECT_EQ( size, size_ ); EXPECT_EQ( bind, bind_ ); EXPECT_EQ( type, type_ ); EXPECT_EQ( section, section_ ); EXPECT_EQ( other, other_ ); } //////////////////////////////////////////////////////////////////////////////// void checkRelocation( const const_relocation_section_accessor* pRT, Elf_Xword index, Elf64_Addr offset_, Elf64_Addr symbolValue_, const std::string& symbolName_, unsigned char type_, Elf_Sxword addend_, Elf_Sxword calcValue_ ) { Elf64_Addr offset; Elf64_Addr symbolValue; std::string symbolName; unsigned type; Elf_Sxword addend; Elf_Sxword calcValue; ASSERT_EQ( pRT->get_entry( index, offset, symbolValue, symbolName, type, addend, calcValue ), true ); EXPECT_EQ( offset, offset_ ); EXPECT_EQ( symbolValue, symbolValue_ ); EXPECT_EQ( symbolName, symbolName_ ); EXPECT_EQ( type, type_ ); EXPECT_EQ( addend, addend_ ); EXPECT_EQ( calcValue, calcValue_ ); } //////////////////////////////////////////////////////////////////////////////// void checkNote( const const_note_section_accessor& notes, Elf_Word index, Elf_Word type_, const std::string& name_, Elf_Word descSize_ ) { Elf_Word type; std::string name; char* desc; Elf_Word descSize; ASSERT_EQ( notes.get_note( index, type, name, desc, descSize ), true ); EXPECT_EQ( type, type_ ); EXPECT_EQ( name, name_ ); EXPECT_EQ( descSize, descSize_ ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, load32 ) { bool is_lazy = false; do { is_lazy = !is_lazy; elfio reader; ASSERT_EQ( reader.load( "elf_examples/hello_32", is_lazy ), true ); checkHeader( reader, ELFCLASS32, ELFDATA2LSB, EV_CURRENT, ET_EXEC, EM_386, 1, 0x80482b0, 0, 28, 7, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[0]; // sec->free_data(); checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[1]; // sec->free_data(); checkSection( sec, 1, ".interp", SHT_PROGBITS, SHF_ALLOC, 0x08048114, 0x13, 0, 0, 1, 0 ); sec = reader.sections[9]; // sec->free_data(); checkSection( sec, 9, ".rel.plt", SHT_REL, SHF_ALLOC, 0x08048234, 0x18, 4, 11, 4, 8 ); sec = reader.sections[19]; // sec->free_data(); checkSection( sec, 19, ".dynamic", SHT_DYNAMIC, SHF_WRITE | SHF_ALLOC, 0x080494a0, 0xc8, 5, 0, 4, 8 ); sec = reader.sections[27]; // sec->free_data(); checkSection( sec, 27, ".strtab", SHT_STRTAB, 0, 0x0, 0x259, 0, 0, 1, 0 ); for ( Elf_Half i = 0; i < reader.sections.size(); ++i ) { sec = reader.sections[i]; // sec->free_data(); EXPECT_EQ( sec->get_index(), i ); } const section* sec1 = reader.sections[".strtab"]; // sec1->free_data(); EXPECT_EQ( sec->get_index(), sec1->get_index() ); //////////////////////////////////////////////////////////////////////////// // Check segments const segment* seg = reader.segments[0]; seg->free_data(); checkSegment( seg, PT_PHDR, 0x08048034, 0x08048034, 0x000e0, 0x000e0, PF_R + PF_X, 4 ); seg = reader.segments[4]; seg->free_data(); checkSegment( seg, PT_DYNAMIC, 0x080494a0, 0x080494a0, 0x000c8, 0x000c8, PF_R + PF_W, 4 ); seg = reader.segments[6]; seg->free_data(); checkSegment( seg, 0x6474E551, 0x0, 0x0, 0x0, 0x0, PF_R + PF_W, 4 ); //////////////////////////////////////////////////////////////////////////// // Check symbol table sec = reader.sections[".symtab"]; // sec->free_data(); const_symbol_section_accessor sr( reader, sec ); EXPECT_EQ( sr.get_symbols_num(), 68 ); checkSymbol( sr, 0, "", 0x00000000, 0, STB_LOCAL, STT_NOTYPE, STN_UNDEF, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 1, "", 0x08048114, 0, STB_LOCAL, STT_SECTION, 1, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 39, "hello.c", 0x00000000, 0, STB_LOCAL, STT_FILE, SHN_ABS, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 65, "__i686.get_pc_thunk.bx", 0x08048429, 0, STB_GLOBAL, STT_FUNC, 12, ELF_ST_VISIBILITY( STV_HIDDEN ) ); checkSymbol( sr, 66, "main", 0x08048384, 43, STB_GLOBAL, STT_FUNC, 12, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 67, "_init", 0x0804824c, 0, STB_GLOBAL, STT_FUNC, 10, ELF_ST_VISIBILITY( STV_DEFAULT ) ); //////////////////////////////////////////////////////////////////////////// // Check relocation table sec = reader.sections[".rel.dyn"]; // sec->free_data(); const_relocation_section_accessor reloc( reader, sec ); EXPECT_EQ( reloc.get_entries_num(), 1 ); checkRelocation( &reloc, 0, 0x08049568, 0x0, "__gmon_start__", R_386_GLOB_DAT, 0, 0 ); sec = reader.sections[".rel.plt"]; // sec->free_data(); const_relocation_section_accessor reloc1( reader, sec ); EXPECT_EQ( reloc1.get_entries_num(), 3 ); checkRelocation( &reloc1, 0, 0x08049578, 0x0, "__gmon_start__", R_X86_64_JUMP_SLOT, 0, 0 ); checkRelocation( &reloc1, 1, 0x0804957c, 0x0, "__libc_start_main", R_X86_64_JUMP_SLOT, 0, 0 ); checkRelocation( &reloc1, 2, 0x08049580, 0x0, "puts", R_X86_64_JUMP_SLOT, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check note reader sec = reader.sections[".note.ABI-tag"]; const_note_section_accessor notes( reader, sec ); EXPECT_EQ( notes.get_notes_num(), 1u ); checkNote( notes, 0, 1, std::string( "GNU" ), 16 ); } while ( is_lazy ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, load64 ) { bool is_lazy = false; do { is_lazy = !is_lazy; elfio reader; ASSERT_EQ( reader.load( "elf_examples/hello_64", is_lazy ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS64, ELFDATA2LSB, EV_CURRENT, ET_EXEC, EM_X86_64, 1, 0x4003c0, 0, 29, 8, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[0]; // sec->free_data(); checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[1]; // sec->free_data(); checkSection( sec, 1, ".interp", SHT_PROGBITS, SHF_ALLOC, 0x0000000000400200, 0x1c, 0, 0, 1, 0 ); sec = reader.sections[9]; // sec->free_data(); checkSection( sec, 9, ".rela.plt", SHT_RELA, SHF_ALLOC, 0x0000000000400340, 0x30, 4, 11, 8, 0x18 ); sec = reader.sections[20]; // sec->free_data(); checkSection( sec, 20, ".dynamic", SHT_DYNAMIC, SHF_WRITE | SHF_ALLOC, 0x0000000000600698, 0x190, 5, 0, 8, 0x10 ); sec = reader.sections[28]; // sec->free_data(); checkSection( sec, 28, ".strtab", SHT_STRTAB, 0, 0x0, 0x23f, 0, 0, 1, 0 ); const section* sec1 = reader.sections[".strtab"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); //////////////////////////////////////////////////////////////////////////// // Check segments const segment* seg = reader.segments[0]; seg->free_data(); checkSegment( seg, PT_PHDR, 0x0000000000400040, 0x0000000000400040, 0x00000000000001c0, 0x00000000000001c0, PF_R + PF_X, 8 ); seg = reader.segments[2]; seg->free_data(); checkSegment( seg, PT_LOAD, 0x0000000000400000, 0x0000000000400000, 0x000000000000066c, 0x000000000000066c, PF_R + PF_X, 0x200000 ); seg = reader.segments[7]; seg->free_data(); checkSegment( seg, 0x6474E551, 0x0, 0x0, 0x0, 0x0, PF_R + PF_W, 8 ); //////////////////////////////////////////////////////////////////////////// // Check symbol table sec = reader.sections[".symtab"]; // sec->free_data(); const_symbol_section_accessor sr( reader, sec ); EXPECT_EQ( sr.get_symbols_num(), 67 ); checkSymbol( sr, 0, "", 0x00000000, 0, STB_LOCAL, STT_NOTYPE, STN_UNDEF, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 1, "", 0x00400200, 0, STB_LOCAL, STT_SECTION, 1, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 40, "hello.c", 0x00000000, 0, STB_LOCAL, STT_FILE, SHN_ABS, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 52, "__gmon_start__", 0x00000000, 0, STB_WEAK, STT_NOTYPE, STN_UNDEF, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 64, "_edata", 0x0060085c, 0, STB_GLOBAL, STT_NOTYPE, SHN_ABS, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 65, "main", 0x00400498, 21, STB_GLOBAL, STT_FUNC, 12, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 66, "_init", 0x00400370, 0, STB_GLOBAL, STT_FUNC, 10, ELF_ST_VISIBILITY( STV_DEFAULT ) ); //////////////////////////////////////////////////////////////////////////// // Check relocation table sec = reader.sections[".rela.dyn"]; // sec->free_data(); const_relocation_section_accessor reloc( reader, sec ); EXPECT_EQ( reloc.get_entries_num(), 1 ); checkRelocation( &reloc, 0, 0x00600828, 0x0, "__gmon_start__", R_X86_64_GLOB_DAT, 0, 0 ); sec = reader.sections[".rela.plt"]; const_relocation_section_accessor reloc1( reader, sec ); EXPECT_EQ( reloc1.get_entries_num(), 2 ); checkRelocation( &reloc1, 0, 0x00600848, 0x0, "puts", R_X86_64_JUMP_SLOT, 0, 0 ); checkRelocation( &reloc1, 1, 0x00600850, 0x0, "__libc_start_main", R_X86_64_JUMP_SLOT, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check note reader sec = reader.sections[".note.ABI-tag"]; // sec->free_data(); const_note_section_accessor notes( reader, sec ); EXPECT_EQ( notes.get_notes_num(), 1u ); checkNote( notes, 0, 1, std::string( "GNU" ), 16 ); } while ( is_lazy ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, hello_64_o ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/hello_64.o" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS64, ELFDATA2LSB, EV_CURRENT, ET_REL, EM_X86_64, 1, 0, 0, 13, 0, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[0]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[1]; checkSection( sec, 1, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR, 0x0, 0x15, 0, 0, 4, 0 ); const section* sec1 = reader.sections[".text"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); sec = reader.sections[12]; checkSection( sec, 12, ".strtab", SHT_STRTAB, 0, 0x0, 0x13, 0, 0, 1, 0 ); sec1 = reader.sections[".strtab"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); //////////////////////////////////////////////////////////////////////////// // Check symbol table sec = reader.sections[".symtab"]; const_symbol_section_accessor sr( reader, sec ); EXPECT_EQ( sr.get_symbols_num(), 11 ); checkSymbol( sr, 9, "main", 0x00000000, 21, STB_GLOBAL, STT_FUNC, 1, ELF_ST_VISIBILITY( STV_DEFAULT ) ); //////////////////////////////////////////////////////////////////////////// // Check relocation table sec = reader.sections[".rela.text"]; const_relocation_section_accessor reloc( reader, sec ); EXPECT_EQ( reloc.get_entries_num(), 2 ); checkRelocation( &reloc, 0, 0x00000005, 0x0, "", R_X86_64_32, 0, 0 ); checkRelocation( &reloc, 1, 0x0000000A, 0x0, "puts", R_X86_64_PC32, 0xfffffffffffffffcULL, -14 ); sec = reader.sections[".rela.eh_frame"]; const_relocation_section_accessor reloc1( reader, sec ); EXPECT_EQ( reloc1.get_entries_num(), 1 ); checkRelocation( &reloc1, 0, 0x00000020, 0x0, "", R_X86_64_32, 0, 0 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, hello_32_o ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/hello_32.o" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS32, ELFDATA2LSB, EV_CURRENT, ET_REL, EM_386, 1, 0, 0, 11, 0, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[0]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[1]; checkSection( sec, 1, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR, 0x0, 0x2b, 0, 0, 4, 0 ); const section* sec1 = reader.sections[".text"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); sec = reader.sections[10]; checkSection( sec, 10, ".strtab", SHT_STRTAB, 0, 0x0, 0x13, 0, 0, 1, 0 ); sec1 = reader.sections[".strtab"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); //////////////////////////////////////////////////////////////////////////// // Check symbol table sec = reader.sections[".symtab"]; const_symbol_section_accessor sr( reader, sec ); EXPECT_EQ( sr.get_symbols_num(), 10 ); checkSymbol( sr, 8, "main", 0x00000000, 43, STB_GLOBAL, STT_FUNC, 1, ELF_ST_VISIBILITY( STV_DEFAULT ) ); //////////////////////////////////////////////////////////////////////////// // Check relocation table sec = reader.sections[".rel.text"]; const_relocation_section_accessor reloc( reader, sec ); EXPECT_EQ( reloc.get_entries_num(), 2 ); checkRelocation( &reloc, 0, 0x00000014, 0x0, "", R_386_32, 0, 0 ); checkRelocation( &reloc, 1, 0x00000019, 0x0, "puts", R_386_PC32, 0x0, -25 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_ppc_o ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/test_ppc.o" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS32, ELFDATA2MSB, EV_CURRENT, ET_REL, EM_PPC, 1, 0, 0, 16, 0, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[0]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[1]; checkSection( sec, 1, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR, 0x0, 0x118, 0, 0, 4, 0 ); const section* sec1 = reader.sections[".text"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); sec = reader.sections[15]; checkSection( sec, 15, ".strtab", SHT_STRTAB, 0, 0x0, 0x14f, 0, 0, 1, 0 ); sec1 = reader.sections[".strtab"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); //////////////////////////////////////////////////////////////////////////// // Check symbol table sec = reader.sections[".symtab"]; const_symbol_section_accessor sr( reader, sec ); EXPECT_EQ( sr.get_symbols_num(), 24 ); checkSymbol( sr, 14, "main", 0x00000000, 92, STB_GLOBAL, STT_FUNC, 1, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 8, "_GLOBAL__I_main", 0x000000DC, 60, STB_LOCAL, STT_FUNC, 1, ELF_ST_VISIBILITY( STV_DEFAULT ) ); //////////////////////////////////////////////////////////////////////////// // Check relocation table sec = reader.sections[".rela.text"]; const_relocation_section_accessor reloc( reader, sec ); EXPECT_EQ( reloc.get_entries_num(), 18 ); checkRelocation( &reloc, 0, 0x00000016, 0x0, "_ZSt4cout", 6, 0, 0 ); checkRelocation( &reloc, 1, 0x0000001a, 0x0, "_ZSt4cout", 4, 0x0, 0 ); checkRelocation( &reloc, 17, 0x000000c0, 0x0, "__cxa_atexit", 10, 0x0, 0 ); sec = reader.sections[".rela.ctors"]; const_relocation_section_accessor reloc1( reader, sec ); EXPECT_EQ( reloc1.get_entries_num(), 1 ); checkRelocation( &reloc1, 0, 0x00000000, 0x0, "", 1, 0xDC, 0xDC ); sec = reader.sections[".rela.eh_frame"]; const_relocation_section_accessor reloc2( reader, sec ); EXPECT_EQ( reloc2.get_entries_num(), 3 ); checkRelocation( &reloc2, 1, 0x00000020, 0x0, "", 1, 0x0, 0x0 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_ppc ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/test_ppc" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS32, ELFDATA2MSB, EV_CURRENT, ET_EXEC, EM_PPC, 1, 0x10000550, 0, 31, 8, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[0]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[1]; checkSection( sec, 1, ".interp", SHT_PROGBITS, SHF_ALLOC, 0x0000000010000134, 0xd, 0, 0, 1, 0 ); sec = reader.sections[9]; checkSection( sec, 9, ".rela.plt", SHT_RELA, SHF_ALLOC, 0x00000000010000494, 0x6c, 4, 22, 4, 0xc ); sec = reader.sections[20]; checkSection( sec, 20, ".dynamic", SHT_DYNAMIC, SHF_WRITE | SHF_ALLOC, 0x0000000010010aec, 0xe8, 5, 0, 4, 0x8 ); sec = reader.sections[28]; checkSection( sec, 28, ".shstrtab", SHT_STRTAB, 0, 0x0, 0x101, 0, 0, 1, 0 ); const section* sec1 = reader.sections[".shstrtab"]; EXPECT_EQ( sec->get_index(), sec1->get_index() ); //////////////////////////////////////////////////////////////////////////// // Check segments const segment* seg = reader.segments[0]; checkSegment( seg, PT_PHDR, 0x10000034, 0x10000034, 0x00100, 0x00100, PF_R + PF_X, 4 ); seg = reader.segments[2]; checkSegment( seg, PT_LOAD, 0x10000000, 0x10000000, 0x00acc, 0x00acc, PF_R + PF_X, 0x10000 ); seg = reader.segments[7]; checkSegment( seg, 0x6474E551, 0x0, 0x0, 0x0, 0x0, PF_R + PF_W, 0x4 ); //////////////////////////////////////////////////////////////////////////// // Check symbol table sec = reader.sections[".symtab"]; const_symbol_section_accessor sr( reader, sec ); EXPECT_EQ( sr.get_symbols_num(), 80 ); checkSymbol( sr, 0, "", 0x00000000, 0, STB_LOCAL, STT_NOTYPE, STN_UNDEF, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 1, "", 0x10000134, 0, STB_LOCAL, STT_SECTION, 1, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 40, "__CTOR_END__", 0x10010AD4, 0, STB_LOCAL, STT_OBJECT, 16, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 52, "__init_array_start", 0x10010acc, 0, STB_LOCAL, STT_NOTYPE, 16, ELF_ST_VISIBILITY( STV_HIDDEN ) ); checkSymbol( sr, 64, "_ZNSt8ios_base4InitD1Ev@@GLIBCXX_3.4", 0x10000920, 204, STB_GLOBAL, STT_FUNC, SHN_UNDEF, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 78, "main", 0x1000069c, 92, STB_GLOBAL, STT_FUNC, 11, ELF_ST_VISIBILITY( STV_DEFAULT ) ); checkSymbol( sr, 79, "_init", 0x10000500, 0, STB_GLOBAL, STT_FUNC, 10, ELF_ST_VISIBILITY( STV_DEFAULT ) ); //////////////////////////////////////////////////////////////////////////// // Check relocation table sec = reader.sections[".rela.dyn"]; const_relocation_section_accessor reloc( reader, sec ); EXPECT_EQ( reloc.get_entries_num(), 2 ); checkRelocation( &reloc, 1, 0x10010c0c, 0x10010c0c, "_ZSt4cout", 19, 0, 0 ); sec = reader.sections[".rela.plt"]; const_relocation_section_accessor reloc1( reader, sec ); EXPECT_EQ( reloc1.get_entries_num(), 9 ); checkRelocation( &reloc1, 0, 0x10010be4, 0x100008e0, "__cxa_atexit", 21, 0, 0 ); checkRelocation( &reloc1, 1, 0x10010be8, 0x0, "__gmon_start__", 21, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check note reader sec = reader.sections[".note.ABI-tag"]; const_note_section_accessor notes( reader, sec ); EXPECT_EQ( notes.get_notes_num(), 1u ); checkNote( notes, 0, 1, std::string( "GNU" ), 16 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_dummy_out_i386_32 ) { elfio writer; writer.create( ELFCLASS32, ELFDATA2LSB ); writer.set_os_abi( 0 ); writer.set_abi_version( 0 ); writer.set_type( ET_REL ); writer.set_machine( EM_386 ); writer.set_flags( 0 ); // Set program entry point writer.set_entry( 0x80482b0 ); // Add Note section section* note_sec = writer.sections.add( ".note" ); note_sec->set_type( SHT_NOTE ); note_sec->set_flags( SHF_ALLOC ); note_sec->set_addr_align( 4 ); note_section_accessor note_writer( writer, note_sec ); char descr[6] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16 }; note_writer.add_note( 0x77, "Hello", descr, 6 ); EXPECT_EQ( note_sec->get_index(), 2 ); // Create ELF file writer.save( "elf_examples/elf_dummy_header_i386_32.elf" ); elfio reader; ASSERT_EQ( reader.load( "elf_examples/elf_dummy_header_i386_32.elf" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS32, ELFDATA2LSB, EV_CURRENT, ET_REL, EM_386, EV_CURRENT, 0x80482b0, 0, 3, 0, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[""]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[".shstrtab"]; checkSection( sec, 1, ".shstrtab", SHT_STRTAB, 0, 0, 17, 0, 0, 1, 0 ); sec = reader.sections[".note"]; EXPECT_EQ( sec->get_index(), 2 ); checkSection( sec, 2, ".note", SHT_NOTE, SHF_ALLOC, 0, 28, 0, 0, 4, 0 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_dummy_out_ppc_32 ) { elfio writer; writer.create( ELFCLASS32, ELFDATA2MSB ); writer.set_os_abi( 0 ); writer.set_abi_version( 0 ); writer.set_type( ET_REL ); writer.set_machine( EM_PPC ); writer.set_flags( 0 ); // Set program entry point writer.set_entry( 0x80482b0 ); // Add Note section section* note_sec = writer.sections.add( ".note" ); note_sec->set_type( SHT_NOTE ); note_sec->set_flags( SHF_ALLOC ); note_sec->set_addr_align( 4 ); note_section_accessor note_writer( writer, note_sec ); char descr[6] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16 }; note_writer.add_note( 0x77, "Hello", descr, 6 ); EXPECT_EQ( note_sec->get_index(), 2 ); // Create ELF file writer.save( "elf_examples/elf_dummy_header_ppc_32.elf" ); elfio reader; ASSERT_EQ( reader.load( "elf_examples/elf_dummy_header_ppc_32.elf" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS32, ELFDATA2MSB, EV_CURRENT, ET_REL, EM_PPC, EV_CURRENT, 0x80482b0, 0, 3, 0, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[""]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[".note"]; EXPECT_EQ( sec->get_index(), 2 ); checkSection( sec, 2, ".note", SHT_NOTE, SHF_ALLOC, 0, 28, 0, 0, 4, 0 ); sec = reader.sections[".shstrtab"]; checkSection( sec, 1, ".shstrtab", SHT_STRTAB, 0, 0, 17, 0, 0, 1, 0 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_dummy_out_i386_64 ) { elfio writer; writer.create( ELFCLASS64, ELFDATA2LSB ); writer.set_os_abi( 0 ); writer.set_abi_version( 0 ); writer.set_type( ET_REL ); writer.set_machine( EM_X86_64 ); writer.set_flags( 0 ); // Set program entry point writer.set_entry( 0x120380482b0ULL ); // Add Note section section* note_sec = writer.sections.add( ".note" ); note_sec->set_type( SHT_NOTE ); note_sec->set_flags( SHF_ALLOC ); note_sec->set_addr_align( 4 ); note_section_accessor note_writer( writer, note_sec ); char descr[6] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16 }; note_writer.add_note( 0x77, "Hello", descr, 6 ); EXPECT_EQ( note_sec->get_index(), 2 ); // Create ELF file writer.save( "elf_examples/elf_dummy_header_i386_64.elf" ); elfio reader; ASSERT_EQ( reader.load( "elf_examples/elf_dummy_header_i386_64.elf" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS64, ELFDATA2LSB, EV_CURRENT, ET_REL, EM_X86_64, EV_CURRENT, 0x120380482b0ULL, 0, 3, 0, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[""]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[".note"]; EXPECT_EQ( sec->get_index(), 2 ); checkSection( sec, 2, ".note", SHT_NOTE, SHF_ALLOC, 0, 28, 0, 0, 4, 0 ); sec = reader.sections[".shstrtab"]; checkSection( sec, 1, ".shstrtab", SHT_STRTAB, 0, 0, 17, 0, 0, 1, 0 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_dummy_out_ppc_64 ) { elfio writer; writer.create( ELFCLASS64, ELFDATA2MSB ); writer.set_os_abi( 0 ); writer.set_abi_version( 0 ); writer.set_type( ET_REL ); writer.set_machine( EM_PPC64 ); writer.set_flags( 0 ); // Set program entry point writer.set_entry( 0x120380482b0ULL ); // Add Note section section* note_sec = writer.sections.add( ".note" ); note_sec->set_type( SHT_NOTE ); note_sec->set_flags( SHF_ALLOC ); note_sec->set_addr_align( 4 ); note_section_accessor note_writer( writer, note_sec ); char descr[6] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16 }; note_writer.add_note( 0x77, "Hello", descr, 6 ); EXPECT_EQ( note_sec->get_index(), 2 ); // Create ELF file writer.save( "elf_examples/elf_dummy_header_ppc_64.elf" ); elfio reader; ASSERT_EQ( reader.load( "elf_examples/elf_dummy_header_ppc_64.elf" ), true ); //////////////////////////////////////////////////////////////////////////// // Check ELF header checkHeader( reader, ELFCLASS64, ELFDATA2MSB, EV_CURRENT, ET_REL, EM_PPC64, EV_CURRENT, 0x120380482b0ULL, 0, 3, 0, 0, 0 ); //////////////////////////////////////////////////////////////////////////// // Check sections const section* sec = reader.sections[""]; checkSection( sec, 0, "", SHT_NULL, 0, 0, 0, 0, 0, 0, 0 ); sec = reader.sections[".shstrtab"]; checkSection( sec, 1, ".shstrtab", SHT_STRTAB, 0, 0, 17, 0, 0, 1, 0 ); sec = reader.sections[".note"]; EXPECT_EQ( sec->get_index(), 2 ); checkSection( sec, 2, ".note", SHT_NOTE, SHF_ALLOC, 0, 28, 0, 0, 4, 0 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_dynamic_64_1 ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/main" ), true ); section* dynsec = reader.sections[".dynamic"]; ASSERT_TRUE( dynsec != nullptr ); dynamic_section_accessor da( reader, dynsec ); EXPECT_EQ( da.get_entries_num(), 21 ); Elf_Xword tag; Elf_Xword value; std::string str; da.get_entry( 0, tag, value, str ); EXPECT_EQ( tag, DT_NEEDED ); EXPECT_EQ( str, "libfunc.so" ); da.get_entry( 1, tag, value, str ); EXPECT_EQ( tag, DT_NEEDED ); EXPECT_EQ( str, "libc.so.6" ); da.get_entry( 2, tag, value, str ); EXPECT_EQ( tag, DT_INIT ); EXPECT_EQ( value, 0x400530 ); da.get_entry( 19, tag, value, str ); EXPECT_EQ( tag, 0x6ffffff0 ); EXPECT_EQ( value, 0x40047e ); da.get_entry( 20, tag, value, str ); EXPECT_EQ( tag, DT_NULL ); EXPECT_EQ( value, 0 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_dynamic_64_2 ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/libfunc.so" ), true ); section* dynsec = reader.sections[".dynamic"]; ASSERT_TRUE( dynsec != nullptr ); dynamic_section_accessor da( reader, dynsec ); EXPECT_EQ( da.get_entries_num(), 20 ); Elf_Xword tag; Elf_Xword value; std::string str; da.get_entry( 0, tag, value, str ); EXPECT_EQ( tag, DT_NEEDED ); EXPECT_EQ( str, "libc.so.6" ); da.get_entry( 1, tag, value, str ); EXPECT_EQ( tag, DT_INIT ); EXPECT_EQ( value, 0x480 ); da.get_entry( 18, tag, value, str ); EXPECT_EQ( tag, 0x6ffffff9 ); EXPECT_EQ( value, 1 ); da.get_entry( 19, tag, value, str ); EXPECT_EQ( tag, DT_NULL ); EXPECT_EQ( value, 0 ); } class mock_wiiu_compression : public compression_interface { public: std::unique_ptr inflate( const char* data, const endianness_convertor* convertor, Elf_Xword compressed_size, Elf_Xword& uncompressed_size ) const override { uncompressed_size = 2 * compressed_size; return std::unique_ptr( new ( std::nothrow ) char[uncompressed_size + 1] ); } std::unique_ptr deflate( const char* data, const endianness_convertor* convertor, Elf_Xword decompressed_size, Elf_Xword& compressed_size ) const override { compressed_size = decompressed_size / 2; return std::unique_ptr( new ( std::nothrow ) char[compressed_size + 1] ); } }; //////////////////////////////////////////////////////////////////////////////// // Given: a valid RPX file // When: we load it with no compression implementation // Then: the size returns the raw section size (compressed size) // When: we load it with a mock compression implementation // Then: the size changes to reflect the mock compression implementation is being called // // This test does not do any further validation because doing so would require providing // a real compression implementation TEST( ELFIOTest, test_rpx ) { elfio reader( new ( std::nothrow ) mock_wiiu_compression() ); elfio reader_no_compression; ASSERT_EQ( reader_no_compression.load( "elf_examples/helloworld.rpx" ), true ); const section* text1 = reader_no_compression.sections[1]; EXPECT_EQ( text1->get_size(), 36744 ); ASSERT_EQ( reader.load( "elf_examples/helloworld.rpx" ), true ); const section* text2 = reader.sections[1]; EXPECT_EQ( text2->get_size(), text1->get_size() * 2 ); } //////////////////////////////////////////////////////////////////////////////// TEST( ELFIOTest, test_dynamic_64_3 ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/main" ), true ); section* dynsec = reader.sections[".dynamic"]; ASSERT_TRUE( dynsec != nullptr ); dynamic_section_accessor da( reader, dynsec ); EXPECT_EQ( da.get_entries_num(), 21 ); section* strsec1 = reader.sections.add( ".dynstr" ); strsec1->set_type( SHT_STRTAB ); strsec1->set_entry_size( reader.get_default_entry_size( SHT_STRTAB ) ); section* dynsec1 = reader.sections.add( ".dynamic1" ); dynsec1->set_type( SHT_DYNAMIC ); dynsec1->set_entry_size( reader.get_default_entry_size( SHT_DYNAMIC ) ); dynsec1->set_link( strsec1->get_index() ); dynamic_section_accessor da1( reader, dynsec1 ); Elf_Xword tag; Elf_Xword tag1; Elf_Xword value; Elf_Xword value1; std::string str; std::string str1; for ( unsigned int i = 0; i < da.get_entries_num(); ++i ) { da.get_entry( i, tag, value, str ); if ( tag == DT_NEEDED || tag == DT_SONAME || tag == DT_RPATH || tag == DT_RUNPATH ) { da1.add_entry( tag, str ); } else { da1.add_entry( tag, value ); } } for ( unsigned int i = 0; i < da.get_entries_num(); ++i ) { da.get_entry( i, tag, value, str ); da1.get_entry( i, tag1, value1, str1 ); EXPECT_EQ( tag, tag1 ); if ( tag == DT_NEEDED || tag == DT_SONAME || tag == DT_RPATH || tag == DT_RUNPATH ) { EXPECT_EQ( str, str1 ); } else { EXPECT_EQ( value, value1 ); } } } TEST( ELFIOTest, test_free_data ) { bool is_lazy = false; do { is_lazy = !is_lazy; elfio reader; ASSERT_EQ( reader.load( "elf_examples/main", is_lazy ), true ); for ( const auto& sec : reader.sections ) { if ( sec->get_size() == 0 || sec->get_data() == nullptr ) continue; std::vector data; std::copy( sec->get_data(), sec->get_data() + sec->get_size(), std::back_inserter( data ) ); sec->free_data(); EXPECT_TRUE( 0 == std::memcmp( data.data(), sec->get_data(), sec->get_size() ) ); } for ( const auto& seg : reader.segments ) { if ( seg->get_file_size() == 0 || seg->get_data() == nullptr ) continue; std::vector data; std::copy( seg->get_data(), seg->get_data() + seg->get_file_size(), std::back_inserter( data ) ); seg->free_data(); EXPECT_TRUE( 0 == std::memcmp( data.data(), seg->get_data(), seg->get_file_size() ) ); } } while ( is_lazy ); } TEST( ELFIOTest, test_segment_resize_bug ) { elfio reader; ASSERT_EQ( reader.load( "elf_examples/x86_64_static" ), true ); /* * Binary built with: * echo "int main(){}" | gcc -xc -static -o x86_64_static - * * readelf -l x86_64_static: * * Program Headers: * Type Offset VirtAddr PhysAddr * FileSiz MemSiz Flags Align * LOAD 0x0000000000000000 0x0000000000400000 0x0000000000400000 * 0x0000000000000518 0x0000000000000518 R 0x1000 * LOAD 0x0000000000001000 0x0000000000401000 0x0000000000401000 * 0x00000000000936bd 0x00000000000936bd R E 0x1000 * LOAD 0x0000000000095000 0x0000000000495000 0x0000000000495000 * 0x000000000002664d 0x000000000002664d R 0x1000 * LOAD 0x00000000000bc0c0 0x00000000004bd0c0 0x00000000004bd0c0 * 0x0000000000005170 0x00000000000068c0 RW 0x1000 * NOTE 0x0000000000000270 0x0000000000400270 0x0000000000400270 * 0x0000000000000020 0x0000000000000020 R 0x8 * NOTE 0x0000000000000290 0x0000000000400290 0x0000000000400290 * 0x0000000000000044 0x0000000000000044 R 0x4 * TLS 0x00000000000bc0c0 0x00000000004bd0c0 0x00000000004bd0c0 * 0x0000000000000020 0x0000000000000060 R 0x8 * GNU_PROPERTY 0x0000000000000270 0x0000000000400270 0x0000000000400270 * 0x0000000000000020 0x0000000000000020 R 0x8 * GNU_STACK 0x0000000000000000 0x0000000000000000 0x0000000000000000 * 0x0000000000000000 0x0000000000000000 RW 0x10 * GNU_RELRO 0x00000000000bc0c0 0x00000000004bd0c0 0x00000000004bd0c0 * 0x0000000000002f40 0x0000000000002f40 R 0x1 * * Section to Segment mapping: * Segment Sections... * 00 .note.gnu.property .note.gnu.build-id .note.ABI-tag .rela.plt * 01 .init .plt .text __libc_freeres_fn .fini * 02 .rodata .stapsdt.base .eh_frame .gcc_except_table * 03 .tdata .init_array .fini_array .data.rel.ro .got .got.plt .data __libc_subfreeres __libc_IO_vtables __libc_atexit .bss __libc_freeres_ptrs * 04 .note.gnu.property * 05 .note.gnu.build-id .note.ABI-tag * 06 .tdata .tbss * 07 .note.gnu.property * 08 * 09 .tdata .init_array .fini_array .data.rel.ro .got */ auto checkElf = [](auto &reader) { const auto &segments = reader.segments; ASSERT_EQ( segments.size(), 10 ); checkSegment(segments[0], PT_LOAD, 0x400000, 0x400000, 0x518, 0x518, PF_R, 0x1000); checkSegment(segments[1], PT_LOAD, 0x401000, 0x401000, 0x936bd, 0x936bd, PF_R | PF_X, 0x1000); checkSegment(segments[2], PT_LOAD, 0x495000, 0x495000, 0x2664d, 0x2664d, PF_R, 0x1000); checkSegment(segments[3], PT_LOAD, 0x4bd0c0, 0x4bd0c0, 0x5170, 0x68c0, PF_R | PF_W, 0x1000); checkSegment(segments[4], PT_NOTE, 0x400270, 0x400270, 0x20, 0x20, PF_R, 0x8); checkSegment(segments[5], PT_NOTE, 0x400290, 0x400290, 0x44, 0x44, PF_R, 0x4); checkSegment(segments[6], PT_TLS, 0x4bd0c0, 0x4bd0c0, 0x20, 0x60, PF_R, 0x8); checkSegment(segments[7], PT_GNU_PROPERTY, 0x400270, 0x400270, 0x20, 0x20, PF_R, 0x8); checkSegment(segments[8], PT_GNU_STACK, 0, 0, 0, 0, PF_R | PF_W, 0x10); checkSegment(segments[9], PT_GNU_RELRO, 0x4bd0c0, 0x4bd0c0, 0x2f40, 0x2f40, PF_R, 0x1); }; checkElf( reader ); ASSERT_EQ( reader.save( "elf_examples/x86_64_static.save" ), true ); ASSERT_EQ( reader.load( "elf_examples/x86_64_static.save" ), true ); // Comment out the assertion. The question is - how the original segment size was calculated //checkElf(reader); }