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#-------------------------------------------------------------------------------
# elftools: elf/descriptions.py
#
# Textual descriptions of the various enums and flags of ELF
#
# Eli Bendersky (eliben@gmail.com)
# This code is in the public domain
#-------------------------------------------------------------------------------
from .enums import ENUM_E_VERSION, ENUM_RELOC_TYPE_i386, ENUM_RELOC_TYPE_x64
from .constants import P_FLAGS, SH_FLAGS
from ..common.py3compat import iteritems
def describe_ei_class(x):
return _DESCR_EI_CLASS.get(x, _unknown)
def describe_ei_data(x):
return _DESCR_EI_DATA.get(x, _unknown)
def describe_ei_version(x):
s = '%d' % ENUM_E_VERSION[x]
if x == 'EV_CURRENT':
s += ' (current)'
return s
def describe_ei_osabi(x):
return _DESCR_EI_OSABI.get(x, _unknown)
def describe_e_type(x):
return _DESCR_E_TYPE.get(x, _unknown)
def describe_e_machine(x):
return _DESCR_E_MACHINE.get(x, _unknown)
def describe_e_version_numeric(x):
return '0x%x' % ENUM_E_VERSION[x]
def describe_p_type(x):
return _DESCR_P_TYPE.get(x, _unknown)
def describe_p_flags(x):
s = ''
for flag in (P_FLAGS.PF_R, P_FLAGS.PF_W, P_FLAGS.PF_X):
s += _DESCR_P_FLAGS[flag] if (x & flag) else ' '
return s
def describe_sh_type(x):
return _DESCR_SH_TYPE.get(x, _unknown)
def describe_sh_flags(x):
s = ''
for flag in (
SH_FLAGS.SHF_WRITE, SH_FLAGS.SHF_ALLOC, SH_FLAGS.SHF_EXECINSTR,
SH_FLAGS.SHF_MERGE, SH_FLAGS.SHF_STRINGS, SH_FLAGS.SHF_INFO_LINK,
SH_FLAGS.SHF_LINK_ORDER, SH_FLAGS.SHF_OS_NONCONFORMING,
SH_FLAGS.SHF_GROUP, SH_FLAGS.SHF_TLS, SH_FLAGS.SHF_EXCLUDE):
s += _DESCR_SH_FLAGS[flag] if (x & flag) else ''
return s
def describe_symbol_type(x):
return _DESCR_ST_INFO_TYPE.get(x, _unknown)
def describe_symbol_bind(x):
return _DESCR_ST_INFO_BIND.get(x, _unknown)
def describe_symbol_visibility(x):
return _DESCR_ST_VISIBILITY.get(x, _unknown)
def describe_symbol_shndx(x):
return _DESCR_ST_SHNDX.get(x, '%3s' % x)
def describe_reloc_type(x, elffile):
arch = elffile.get_machine_arch()
if arch == 'x86':
return _DESCR_RELOC_TYPE_i386.get(x, _unknown)
elif arch == 'x64':
return _DESCR_RELOC_TYPE_x64.get(x, _unknown)
else:
return 'unrecognized: %-7x' % (x & 0xFFFFFFFF)
#-------------------------------------------------------------------------------
_unknown = '<unknown>'
_DESCR_EI_CLASS = dict(
ELFCLASSNONE='none',
ELFCLASS32='ELF32',
ELFCLASS64='ELF64',
)
_DESCR_EI_DATA = dict(
ELFDATANONE='none',
ELFDATA2LSB="2's complement, little endian",
ELFDATA2MSB="2's complement, big endian",
)
_DESCR_EI_OSABI = dict(
ELFOSABI_SYSV='UNIX - System V',
ELFOSABI_HPUX='UNIX - HP-UX',
ELFOSABI_NETBSD='UNIX - NetBSD',
ELFOSABI_LINUX='UNIX - Linux',
ELFOSABI_HURD='UNIX - GNU/Hurd',
ELFOSABI_SOLARIS='UNIX - Solaris',
ELFOSABI_AIX='UNIX - AIX',
ELFOSABI_IRIX='UNIX - IRIX',
ELFOSABI_FREEBSD='UNIX - FreeBSD',
ELFOSABI_TRU64='UNIX - TRU64',
ELFOSABI_MODESTO='Novell - Modesto',
ELFOSABI_OPENBSD='UNIX - OpenBSD',
ELFOSABI_OPENVMS='VMS - OpenVMS',
ELFOSABI_NSK='HP - Non-Stop Kernel',
ELFOSABI_AROS='AROS',
ELFOSABI_ARM='ARM',
ELFOSABI_STANDALONE='Standalone App',
)
_DESCR_E_TYPE = dict(
ET_NONE='NONE (None)',
ET_REL='REL (Relocatable file)',
ET_EXEC='EXEC (Executable file)',
ET_DYN='DYN (Shared object file)',
ET_CORE='CORE (Core file)',
PROC_SPECIFIC='Processor Specific',
)
_DESCR_E_MACHINE = dict(
EM_NONE='None',
EM_M32='WE32100',
EM_SPARC='Sparc',
EM_386='Intel 80386',
EM_68K='MC68000',
EM_88K='MC88000',
EM_860='Intel 80860',
EM_MIPS='MIPS R3000',
EM_S370='IBM System/370',
EM_MIPS_RS4_BE='MIPS 4000 big-endian',
EM_IA_64='Intel IA-64',
EM_X86_64='Advanced Micro Devices X86-64',
EM_AVR='Atmel AVR 8-bit microcontroller',
RESERVED='RESERVED',
)
_DESCR_P_TYPE = dict(
PT_NULL='NULL',
PT_LOAD='LOAD',
PT_DYNAMIC='DYNAMIC',
PT_INTERP='INTERP',
PT_NOTE='NOTE',
PT_SHLIB='SHLIB',
PT_PHDR='PHDR',
PT_GNU_EH_FRAME='GNU_EH_FRAME',
PT_GNU_STACK='GNU_STACK',
PT_GNU_RELRO='GNU_RELRO',
)
_DESCR_P_FLAGS = {
P_FLAGS.PF_X: 'E',
P_FLAGS.PF_R: 'R',
P_FLAGS.PF_W: 'W',
}
_DESCR_SH_TYPE = dict(
SHT_NULL='NULL',
SHT_PROGBITS='PROGBITS',
SHT_SYMTAB='SYMTAB',
SHT_STRTAB='STRTAB',
SHT_RELA='RELA',
SHT_HASH='HASH',
SHT_DYNAMIC='DYNAMIC',
SHT_NOTE='NOTE',
SHT_NOBITS='NOBITS',
SHT_REL='REL',
SHT_SHLIB='SHLIB',
SHT_DYNSYM='DYNSYM',
SHT_INIT_ARRAY='INIT_ARRAY',
SHT_FINI_ARRAY='FINI_ARRAY',
SHT_PREINIT_ARRAY='PREINIT_ARRAY',
SHT_GNU_HASH='GNU_HASH',
SHT_GROUP='GROUP',
SHT_SYMTAB_SHNDX='SYMTAB SECTION INDICIES',
SHT_GNU_verdef='VERDEF',
SHT_GNU_verneed='VERNEED',
SHT_GNU_versym='VERSYM',
SHT_GNU_LIBLIST='GNU_LIBLIST',
)
_DESCR_SH_FLAGS = {
SH_FLAGS.SHF_WRITE: 'W',
SH_FLAGS.SHF_ALLOC: 'A',
SH_FLAGS.SHF_EXECINSTR: 'X',
SH_FLAGS.SHF_MERGE: 'M',
SH_FLAGS.SHF_STRINGS: 'S',
SH_FLAGS.SHF_INFO_LINK: 'I',
SH_FLAGS.SHF_LINK_ORDER: 'L',
SH_FLAGS.SHF_OS_NONCONFORMING: 'O',
SH_FLAGS.SHF_GROUP: 'G',
SH_FLAGS.SHF_TLS: 'T',
SH_FLAGS.SHF_EXCLUDE: 'E',
}
_DESCR_ST_INFO_TYPE = dict(
STT_NOTYPE='NOTYPE',
STT_OBJECT='OBJECT',
STT_FUNC='FUNC',
STT_SECTION='SECTION',
STT_FILE='FILE',
STT_COMMON='COMMON',
STT_TLS='TLS',
STT_NUM='NUM',
STT_RELC='RELC',
STT_SRELC='SRELC',
)
_DESCR_ST_INFO_BIND = dict(
STB_LOCAL='LOCAL',
STB_GLOBAL='GLOBAL',
STB_WEAK='WEAK',
)
_DESCR_ST_VISIBILITY = dict(
STV_DEFAULT='DEFAULT',
STV_INTERNAL='INTERNAL',
STV_HIDDEN='HIDDEN',
STD_PROTECTED='PROTECTED',
)
_DESCR_ST_SHNDX = dict(
SHN_UNDEF='UND',
SHN_ABS='ABS',
SHN_COMMON='COM',
)
_DESCR_RELOC_TYPE_i386 = dict(
(v, k) for k, v in iteritems(ENUM_RELOC_TYPE_i386))
_DESCR_RELOC_TYPE_x64 = dict(
(v, k) for k, v in iteritems(ENUM_RELOC_TYPE_x64))
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