def readDataByAddress(elf, address, size):
for section in elf.sectionHeaderTable:
if (address >= section.sh_addr
and address <= section.sh_addr + section.sh_size):
offset = address - section.sh_addr
return utils.convertFromELF(section.contents[offset:offset + size],
size)
return const.RC_ERROR
def getStructMember(self, member):
size = self.getStructMemberSize(member)
data = utils.convertFromELF(self.struct, size, self.structOffset)
self.structOffset += size
# Print member and value if verbose is enabled
if (self.verbose):
print(self.__class__.__name__ + "." +
member).ljust(35) + " = " + str(data)
return data
def __init__(self, symbolData, strtab):
## This member holds an index into the object file's symbol string
# table, which holds the character representations of the symbol
# names. If the value is non-zero, it represents a string table index
# that gives the symbol name. Otherwise, the symbol table entry has no
# name.
self.st_name = utils.convertFromELF(symbolData,
const.elfDataTypes.Elf32_Word,
const.Elf32_SymOffsets.st_name)
## This member gives the value of the associated symbol. Depending on
# the context, this may be an absolute value, an address, etc.
self.st_value = utils.convertFromELF(symbolData,
const.elfDataTypes.Elf32_Addr,
const.Elf32_SymOffsets.st_value)
## Many symbols have associated sizes. For example, a data object's
# size is the number of bytes contained in the object. This member
# holds 0 if the symbol has no size or an unknown size.
self.st_size = utils.convertFromELF(symbolData,
const.elfDataTypes.Elf32_Word,
const.Elf32_SymOffsets.st_size)
## This member specifies the symbol's type and binding attributes.
self.st_info = utils.convertFromELF(symbolData,
const.elfDataTypes.unsigned_char,
const.Elf32_SymOffsets.st_info)
## This member currently specifies a symbol's visibility
self.st_other = utils.convertFromELF(symbolData,
const.elfDataTypes.unsigned_char,
const.Elf32_SymOffsets.st_other)
## Every symbol table entry is "defined" in relation to some section;
# this member holds the relevant section header table index.
self.st_shndx = utils.convertFromELF(symbolData,
const.elfDataTypes.Elf32_Half,
const.Elf32_SymOffsets.st_shndx)
if self.st_name:
## This member contains the string name of the symbol.
self.st_nameStr = utils.getStringFromContents(
strtab.contents, self.st_name)
else:
self.st_nameStr = ""
