dddlZddlmZddlZddlZddlZ ddlZej Zddl m Z m Z ddl mZmZddlmZdd lmZmZmZmZmZmZmZmZmZmZdd lmZmZdd l m!Z!m"Z"m#Z#dd l$m%Z%m&Z&m'Z'dd l(m)Z)m*Z*m+Z+ddl,m-Z-m.Z.m/Z/ddl0m1Z1ddl2m3Z3m4Z4ddl5m6Z6Gdde7Z8y#e$r" ddl Z e jZn #e$rdZYnwxYwYwxYw)N)BytesIOi)ELFError ELFParseError) struct_parse elf_assert) ELFStructs) SectionStringTableSectionSymbolTableSectionSymbolTableIndexSectionSUNWSyminfoTableSection NullSection NoteSection StabSectionARMAttributesSectionRISCVAttributesSection)DynamicSectionDynamicSegment)RelocationSectionRelocationHandlerRelrRelocationSection)GNUVerNeedSectionGNUVerDefSectionGNUVerSymSection)Segment InterpSegment NoteSegment) DWARFInfoDebugSectionDescriptor DwarfConfig) EHABIInfo)ELFHashSectionGNUHashSection) SHN_INDICESc0eZdZdZd.dZedZdZdZdZ dZ d.d Z d Z d Z d.d Zd/d ZdZd0dZdZdZdZdZdZdZdZdZdZdZdZdZdZdZdZ dZ!d Z"d!Z#d"Z$d#Z%d$Z&d%Z'd&Z(d'Z)d(Z*d)Z+e,d*Z-d+Z.d,Z/d-Z0y)1ELFFilea Creation: the constructor accepts a stream (file-like object) with the contents of an ELF file. Optionally, a stream_loader function can be passed as the second argument. This stream_loader function takes a relative file path to load a supplementary object file, and returns a stream suitable for creating a new ELFFile. Currently, the only such relative file path is obtained from the supplementary object files. Accessible attributes: stream: The stream holding the data of the file - must be a binary stream (bytes, not string). elfclass: 32 or 64 - specifies the word size of the target machine little_endian: boolean - specifies the target machine's endianness elftype: string or int, either known value of E_TYPE enum defining ELF type (e.g. executable, dynamic library or core dump) or integral unparsed value header: the complete ELF file header e_ident_raw: the raw e_ident field of the header Nc|||_|jjdtj|jj |_|j t|j|j|_ |jj|j|_ |jj|d|d|dd|jjd|jjd|_|j#|_d|_||_y)Nr) little_endianelfclasse_type e_machinee_identEI_OSABI)streamseekioSEEK_ENDtell stream_len_identify_filer r*r+structscreate_basic_structs_parse_elf_headerheadercreate_advanced_structsread e_ident_raw_get_section_header_stringtable_section_header_stringtable_section_name_map stream_loader)selfr1rBs 6/usr/lib/python3/dist-packages/elftools/elf/elffile.py__init__zELFFile.__init__Os  BKK(++**, !,,]]$  ))+,,.  ,,X[!Y + - ;;++B/  0 0 2 (!%*c|tjj|fd}t|d}t ||S)zTakes a path to a file on the local filesystem, and returns an ELFFile from it, setting up a correct stream_loader relative to the original file. ctjj|s tjj|}t |dS)Nrb)ospathisabsjoinopen)elf_pathbase_directorys rDloaderz&ELFFile.load_from_path..loaderns777==*77<<(02$' 'rFrI)rJrKdirnamerNr()clsrKrQr1rPs @rDload_from_pathzELFFile.load_from_pathgs7 . ( dD!vv&&rFcV|ddk(ry|ddk(r|jddS|dS)z( Number of sections in the file e_shoffre_shnumsh_size)_get_section_headerrCs rD num_sectionszELFFile.num_sectionswsA  ?a   ?a ++A.y9 9IrFcF|j|}|j|S)z^ Get the section at index #n from the file (Section object or a subclass) )rY _make_section)rCnsection_headers rD get_sectionzELFFile.get_sections%11!4!!.11rFc|j|j|jj|d}|dS|j|S)zb Get a section from the file, by name. Return None if no such section exists. N)rA_make_section_name_mapgetr`)rCnamesecnums rDget_section_by_namezELFFile.get_section_by_namesN  ! ! )  ' ' )''++D$7~tC4+;+;F+CCrFcr|j|j|jj|dS)zh Gets the index of the section by name. Return None if no such section name exists. N)rArbrc)rC section_names rDget_section_indexzELFFile.get_section_indexs5  ! ! )  ' ' )%%)),==rFc#Kt|jD]"}|j|}| |d|k(s|$yw)a> Yield all the sections in the file. If the optional |type| parameter is passed, this method will only yield sections of the given type. The parameter value must be a string containing the name of the type as defined in the ELF specification, e.g. 'SHT_SYMTAB'. Nsh_type)ranger[r`)rCtypeisections rD iter_sectionszELFFile.iter_sectionssKt((*+ A&&q)G|wy1T9   8AAcD|ddkr|dS|jddS)z( Number of segments in the file e_phnumirsh_info)r`rZs rD num_segmentszELFFile.num_segmentss0  ?V # ? "##A&y1 1rFcF|j|}|j|S)zD Get the segment at index #n from the file (Segment object) )_get_segment_header _make_segment)rCr^segment_headers rD get_segmentzELFFile.get_segments%11!4!!.11rFc#Kt|jD]"}|j|}| |d|k(s|$yw)a; Yield all the segments in the file. If the optional |type| parameter is passed, this method will only yield segments of the given type. The parameter value must be a string containing the name of the type as defined in the ELF specification, e.g. 'PT_LOAD'. Np_type)rlrurz)rCrmrnsegments rD iter_segmentszELFFile.iter_segmentssKt((*+ A&&q)G|wx0D8  rqc#K||z}|jdD]*}||dk\s ||d|dzks||dz |dz,yw)z Yield a file offset for each ELF segment containing a memory region. A memory region is defined by the range [start...start+size). The offset of the region is yielded. PT_LOADrmp_vaddrp_fileszp_offsetN)r~)rCstartsizeendsegs rDaddress_offsetszELFFile.address_offsetssg dl%%9%5 ?CY's9~J77c)n,s:>> ?s#AAAct|jdxs$|jdxs|jdS)z Check whether this file appears to have debugging information. We assume that if it has the .debug_info or .zdebug_info section, it has all the other required sections as well. .debug_info .zdebug_info .eh_frame)boolrfrZs rDhas_dwarf_infozELFFile.has_dwarf_infosD D,,];2  $ $^ 42  $ $[ 13 3rFcd}t|jd}|rttd|}|dz }|\}}}}} } } } } }}}}}}}}}i}|D]V}|j|}|d||<|j ||}|r"|j dr|j |}|||<Xtdidt|j|jdz|j d ||d ||d ||d || d||d||d|| d|| d|| d|| d||d||d||d||d||d||d||d||}|r|j||_ |S)aw Return a DWARFInfo object representing the debugging information in this file. If relocate_dwarf_sections is True, relocations for DWARF sections are looked up and applied. If follow_links is True, we will try to load the supplementary object file (if any), and use it to resolve references and imports. )rz.debug_arangesz .debug_abbrevz .debug_strz .debug_linez .debug_framez .debug_locz .debug_rangesz.debug_pubtypesz.debug_pubnamesz .debug_addrz.debug_str_offsetsz.debug_line_strz.debug_loclistsz.debug_rnglistsz .debug_supz.gnu_debugaltlinkrcd|ddzS)N.zr )xs rDz(ELFFile.get_dwarf_info..squ rF)rNrconfig)r*default_address_size machine_archdebug_info_secdebug_aranges_secdebug_abbrev_secdebug_frame_sec eh_frame_sec debug_str_sec debug_loc_secdebug_ranges_secdebug_line_secdebug_pubtypes_secdebug_pubnames_secdebug_addr_secdebug_str_offsets_secdebug_line_str_secdebug_loclists_secdebug_rnglists_sec debug_sup_secgnu_debugaltlink_secr)rrftuplemap_read_dwarf_section startswith_decompress_dwarf_sectionr r"r*r+get_machine_archget_supplementary_dwarfinfosupplementary_dwarfinfo)rCrelocate_dwarf_sections follow_links section_names compresseddebug_info_sec_namedebug_aranges_sec_namedebug_abbrev_sec_namedebug_str_sec_namedebug_line_sec_namedebug_frame_sec_namedebug_loc_sec_namedebug_ranges_sec_namedebug_pubtypes_namedebug_pubnames_namedebug_addr_namedebug_str_offsets_namedebug_line_str_namedebug_loclists_sec_namedebug_rnglists_sec_namedebug_sup_namegnu_debugaltlink_nameeh_frame_sec_namedebug_sectionssecnamero dwarf_section dwarfinfos rDget_dwarf_infozELFFile.get_dwarf_infoso< $22>BC !#&--?@--?@"00E!F ..AB$22E#F$22E#F .o>!"'55K&L#$$22E#F%&$22I#J'($22I#J)*-^<+,&44I%J- 0 040P0PQZ0[I -rFc|j}|J|j>|j|}t|}|j}|j |Sy)z Read supplementary dwarfinfo, from either the standared .debug_sup section or the GNU proprietary .gnu_debugaltlink. N)parse_debugsupinforBr(rclose)rCr supfilepathr1 supelffile dwarf_infos rDrz#ELFFile.get_supplementary_dwarfinfo;s\  224  "t'9'9'E'' 4F J#224J LLN rFc8t|jdS)zT Check whether this file appears to have arm exception handler index table. SHT_ARM_EXIDXr)anyrprZs rDhas_ehabi_infozELFFile.has_ehabi_infoJs4%%?%;<X % [[ [5)))? @G KK '4+=+=> ? @4y1}t.$.rFciddddddddd d d d d ddddddddddddddddddd d!d"id#d$d%d&d'd(d)d*d+d,d-d.d/d0d1d2d3d4d5d6d7d8d9d:d;d<d=d>d?d@dAdBdCdDidEdFdGdHdIdJdKdLdMdNdOdPdQdRdSdTdUdVdWdXdYdZd[d\d]d^d_d`dadbdcdddedfidgdhdidjdkdldmdndodpdqdrdsdtdudvdwdxdydzd{d|d}d~ddddddddddiddddddddddddddddddddddddddddddddddidddddddddddddddddddddddd“ddēddƓddȓddʓdd̓iddΓddГddғddԓdd֓ddؓddړddܓddޓddddddddddddddddidddddddddddddddddddddddddddd d d d d ddiddddddddddddddddd d!d"d#d$d%d&d'd(d)d*d+d,d-d.d/d0d1id2d3d4d5d6d7d8d9d:d;d<d=d>d?d@dAdBdCdDdCdEdCdFdCdGdCdHdIdJdKdLdMdNdOidPdQdRdSdTdUdVdWdXdYdZd[d\d]d^d_d`dadbdcdddedfdgdhdidjdkdldmdndo}|j|dpdqS(rzK Return the machine architecture, as detected from the ELF header. 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NV2EM_RXz Renesas RXEM_METAGzImagination Technologies METAEM_MCST_ELBRUSz MCST Elbrus EM_ECOG16zCyan Technology eCOG16EM_CR16z.National Semiconductor CompactRISC CR16 16-bitEM_ETPU FreescaleEM_SLE9XzInfineon Technologies SLE9XEM_L10Mz Intel L10MEM_K10Mz Intel K10M EM_AARCH64AArch64EM_AVR32z Atmel 32-bitEM_STM8zSTMicroeletronics STM8 8-bit EM_TILE64z Tilera TILE64 EM_TILEPROzTilera TILEPro EM_MICROBLAZEzXilinx MicroBlaze 32-bit RISCEM_CUDAz NVIDIA CUDA EM_TILEGXzTilera TILE-GxEM_CLOUDSHIELD CloudShield EM_COREA_1STz KIPO-KAIST Core-A 1st generation EM_COREA_2NDz KIPO-KAIST Core-A 2nd generationEM_ARC_COMPACT2zSynopsys ARCompact V2EM_OPEN8zOpen8 8-bit RISCEM_RL78z Renesas RL78 EM_VIDEOCORE5zBroadcom VideoCore VEM_78KORz Renesas 78KOR EM_56800EXzFreescale 56800EXEM_BA1z Beyond BA1EM_BA2z Beyond BA2EM_XCOREz XMOS xCORE EM_MCHP_PICzMicrochip 8-bit PIC EM_INTEL205zReserved by Intel EM_INTEL206 EM_INTEL207 EM_INTEL208 EM_INTEL209EM_KM32zKM211 KM32 32-bitEM_KMX32zKM211 KMX32 32-bitEM_KMX16zKM211 KMX16 16-bitEM_KMX8zKM211 KMX8 8-bitEM_KVARCz KM211 KVARCEM_CDPz Paneve CDPEM_COGE CognitiveEM_COOLzBluechip Systems CoolEngineEM_NORCzNanoradio Optimized RISCEM_CSR_KALIMBAz CSR KalimbaEM_Z80z Zilog Z80 EM_VISIUM VISIUMcoreEM_FT32zFTDI Chip FT32 32-bit RISCEM_MOXIEMoxie EM_AMDGPUzAMD GPUEM_RISCVzRISC-VEM_BPFz%Linux BPF - in-kernel virtual machineEM_CSKYzC-SKY EM_LOONGARCH LoongArchEM_FRVz Fujitsu FR-Vr-z )rc)rC architecturess rDrzELFFile.get_machine_arch\s; { { {  {  !1 { !1 {  {  {  {  !1{  !<{  !:{  !1{  !1{  {  { !1!{ " !1#{ $ %{ & '{ ( ){ * +{ , -{ . /{ 0 1{ 2 3{ 4 !25{ 6 !E7{ 8 !Q9{ : !1;{ < !2={ > ?{ @ !1A{ B C{ D E{ F !4G{ H !3I{ J K{ L M{ N O{ P Q{ R !5S{ T U{ V !;W{ X !7Y{ Z [{ \ ]{ ^ !;_{ ` !;a{ b c{ d !Ce{ f !?g{ h !4i{ j !4k{ l !4m{ n !4o{ p !7q{ r !@s{ t u{ v !=w{ x !?y{ z !8{{ | !7}{ ~ !E{ @ !VA{ B C{ D !2E{ F G{ H !2I{ J !2K{ L M{ N !2O{ P !5Q{ R !5S{ T U{ V !2W{ X !>Y{ Z !3[{ \ !8]{ ^ !6_{ ` !Fa{ b !4c{ d !2e{ f !;g{ h i{ j k{ l !Em{ n !1o{ p !;q{ r !:s{ t !4u{ v w{ x y{ z !1{{ | }{ ~ !O{ @ !1A{ B !IC{ D !1E{ F !6G{ H I{ J !@K{ L !KM{ N O{ P !1Q{ R !1S{ T !7U{ V !8W{ X !7Y{ Z !C[{ \ !9]{ ^ !4_{ ` !2a{ b !1c{ d !1e{ f g{ h !Fi{ j !@k{ l !@m{ n o{ p q{ r !>s{ t u{ v w{ x !A{ B !?C{ D !U{ V W{ X Y{ Z [{ \ ]{ ^ !?_{ ` a{ b !1c{ d !@e{ f g{ h !1i{ j k{ l !Cm{ n !Co{ p !8q{ r !3s{ t u{ v !7w{ x y{ z !4{{ | }{ ~ { @ A{ B !6C{ D !4E{ F !4G{ H !4I{ J !4K{ L !4M{ N !4O{ P !5Q{ R !5S{ T !3U{ V W{ X Y{ Z [{ \ !>]{ ^ !;_{ ` a{ b c{ d e{ f !=g{ h i{ j k{ l m{ n !Ho{ p q{ r s{ t u{ z  k!2K@@rFc`|dtjk7r|dS|jddS)zJ Find the string table section index for the section header table e_shstrndxrsh_link)r& SHN_XINDEXrYrZs rD get_shstrndxzELFFile.get_shstrndxs8  !7!7 7 % %++A.y9 9rFc |j|S)z6 Implement dict-like access to header entries )r;)rCrds rD __getitem__zELFFile.__getitem__-s{{4  rFc|jjd|jjd}t|dk(d|jjd}|dk(rd|_n$|dk(rd |_nt d t |z|jjd}|dk(rd |_y|dk(rd |_yt d t |z)zD Verify the ELF file and identify its class and endianness. rsELFzMagic number does not matchr  @zInvalid EI_CLASS %sTFzInvalid EI_DATA %sN)r1r2r=rr+rreprr*)rCmagicei_classei_datas rDr7zELFFile._identify_file2s    #5J&(EF;;##A& w DM  DM04>AB B++""1% g !%D   !&D /$w-?@ @rFc|d||dzzS)z6 Compute the offset of section #n in the file rV e_shentsizerrCr^s rD_section_offsetzELFFile._section_offsetLIT-%8!888rFc|d||dzzS)z6 Compute the offset of segment #n in the file e_phoff e_phentsizerrs rD_segment_offsetzELFFile._segment_offsetQrrFc|d}|dk(rt||jS|dk(rt||j|S|dk(rt||j|St ||jS)z9 Create a Segment object of the appropriate type r| PT_INTERP PT_DYNAMICPT_NOTE)rr1rrr)rCrysegtypes rDrxzELFFile._make_segmentVsn!* k ! = =  $!.$++tD D  !~t{{DA A>4;;7 7rFc|j|}||jkDryt|jj|j |S)zG Find the header of section #n, parse it and return the struct N stream_pos)rr6rr8Elf_Shdrr1)rCr^rs rDrYzELFFile._get_section_headercsG))!,  ' LL ! ! KK!# #rFcp|j td|d}|jj|S)za Given a section header, find this section's name in the file's string table zString Table not foundsh_name)r@r get_string)rCr_ name_offsets rD_get_section_namezELFFile._get_section_nameps=  + + 3 89 9$Y/ //::;GGrFc|j|}|d}|dk(r t|||S|dk(r t|||S|dvr|j||S|dk(r|j ||S|dk(r|j ||S|dk(r|j ||S|dk(r|j||S|d k(r|j||S|d vr t|||S|d k(r t|||S|d k(r t|||S|d k(r|dk(r t|||S|dk(r t|||S|dk(r t|||S|dk(r|j||S|dk(r|j!||S|dk(r t#|||St%|||S)z9 Create a section object of the appropriate type rk SHT_STRTABSHT_NULL) SHT_SYMTAB SHT_DYNSYMSHT_SUNW_LDYNSYMSHT_SYMTAB_SHNDXSHT_SUNW_syminfoSHT_GNU_verneedSHT_GNU_verdefSHT_GNU_versym)SHT_RELSHT_RELA SHT_DYNAMICSHT_NOTE SHT_PROGBITSz.stabSHT_ARM_ATTRIBUTESSHT_RISCV_ATTRIBUTESSHT_HASH SHT_GNU_HASHSHT_RELR)rr r_make_symbol_table_section _make_symbol_table_index_section_make_sunwsyminfo_table_section_make_gnu_verneed_section_make_gnu_verdef_section_make_gnu_versym_sectionrrrrrr_make_elf_hash_section_make_gnu_hash_sectionrr )rCr_rdsectypes rDr]zELFFile._make_sectionzs%%n5 + l "%ndDA A  "~tT: : H H22>4H H * *88N N * *77M M ) )11.$G G ( (00F F ( (00F F / /$^T4@ @  %!.$= =  "~tT: :  &47?~tT: : , ,'dC C . .).$E E  "..~tD D  &..~tD D  "(tD D>46 6rFci|_t|jD]\}}||j|j< yN)rA enumeraterprd)rCrnsecs rDrbzELFFile._make_section_name_maps?!# 2 2 45 1FAs/0D " "388 , 1rFcL|d}|j|}t||||S)z% Create a SymbolTableSection relffile stringtable)r`r rCr_rdlinked_strtab_indexstrtab_sections rDrz"ELFFile._make_symbol_table_sections8-Y7))*=>! 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