reko/src/Scripts/Python/_program.py at master · gitmesam/reko · GitHub

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# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2, or (at your option)

# any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; see the file COPYING. If not, write to

# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

'''This module contains classes which provides decompiling program

functionality.

WARNING: This is a part of internal API. Do not import it directly to your

scripts.

'''

def reko_address(reko, addr):

if isinstance(addr, tuple):

addr = ":".join(map('0x{:X}'.format, addr))

return reko.Address(addr)

def addr_from_str(s_addr):

pos = s_addr.find(":")

if pos >= 0:

return (int(s_addr[:pos], 16), int(s_addr[pos + 1:], 16))

return int(s_addr, 16)

def addr_list_from_str_list(s_addr_list):

return (addr_from_str(s_addr) for s_addr in s_addr_list)

def get_memory_length(start_addr, end_addr):

if isinstance(start_addr, tuple) and isinstance(end_addr, tuple):

start_seg, start_offset = start_addr

end_seg, end_offset = end_addr

if start_seg != end_seg:

raise Exception("Can't work with different memory segments.")

return end_offset - start_offset

return end_addr - start_addr

class RekoDictBase:

__slots__ = []

def __getitem__(self, key):

raise KeyError

def get(self, key, default=None):

'D.get(k[,d]) -> D[k] if k in D, else d. d defaults to None.'

try:

return self[key]

except KeyError:

return default

def __contains__(self, key):

try:

self[key]

except KeyError:

return False

else:

return True

def items(self):

for key in self:

yield (key, self[key])

class Comments:

__slots__ = '_reko'

def __init__(self, reko):

self._reko = reko

def __setitem__(self, addr, comment):

addr = reko_address(self._reko, addr)

if not isinstance(comment, str):

raise TypeError(

'Unsupported type: {}. Expected type: str'.format(

type(comment)))

self._reko.SetUserComment(addr, comment)

class MemorySlice:

__slots__ = '_reko', '_start_addr', '_length'

def __init__(self, reko, start_addr, length):

self._reko = reko

self._start_addr = start_addr

self._length = length

@property

def byte(self):

if self._length is None:

return self._reko.ReadByte(self._start_addr)

return self._reko.ReadBytes(self._start_addr, self._length)

@property

def int16(self):

if self._length is None:

return self._reko.ReadInt16(self._start_addr)

return self._reko.ReadInts16(self._start_addr, self._length)

@property

def int32(self):

if self._length is None:

return self._reko.ReadInt32(self._start_addr)

return self._reko.ReadInts32(self._start_addr, self._length)

@property

def int64(self):

if self._length is None:

return self._reko.ReadInt64(self._start_addr)

return self._reko.ReadInts64(self._start_addr, self._length)

@property

def c_str(self):

return self._reko.ReadCString(self._start_addr)

class Memory:

__slots__ = '_reko'

def __init__(self, reko):

self._reko = reko

def __getitem__(self, key):

if isinstance(key, slice):

if key.step is not None:

raise ValueError('Step is not supported')

if key.start is None:

raise ValueError('Start address is required')

if key.stop is None:

raise ValueError('End address is required')

start_addr = key.start

length = get_memory_length(key.start, key.stop)

else:

start_addr = key

length = None

start_addr = reko_address(self._reko, start_addr)

return MemorySlice(self._reko, start_addr, length)

class Globals:

__slots__ = '_reko'

def __init__(self, reko):

self._reko = reko

def __setitem__(self, addr, decl):

addr = reko_address(self._reko, addr)

if isinstance(decl, str):

self._reko.SetUserGlobal(addr, decl)

return

raise TypeError('Unsupported type: {}'.format(type(decl)))

class Procedure:

__slots__ = '_reko', '_addr'

def __init__(self, reko, addr):

self._reko = reko

self._addr = addr

@property

def decompile(self):

return self._reko.GetProcedureDecompileFlag(self._addr)

@decompile.setter

def decompile(self, value):

self._reko.SetUserProcedureDecompileFlag(self._addr, value)

@property

def name(self):

return self._reko.GetProcedureName(self._addr)

@property

def file(self):

return self._reko.GetProcedureOutputFile(self._addr)

@file.setter

def file(self, value):

self._reko.SetUserProcedureOutputFile(self._addr, value)

class Procedures(RekoDictBase):

__slots__ = '_reko'

def __init__(self, reko):

self._reko = reko

def __getitem__(self, addr):

try:

addr = reko_address(self._reko, addr)

except Exception:

raise KeyError(addr)

if not self._reko.ContainsProcedureAddress(addr):

raise KeyError(addr)

return Procedure(self._reko, addr)

def __setitem__(self, addr, decl):

addr = reko_address(self._reko, addr)

if isinstance(decl, str):

self._reko.SetUserProcedure(addr, decl)

return

raise TypeError('Unsupported type: {}'.format(type(decl)))

def __iter__(self):

return addr_list_from_str_list(self._reko.GetProcedureAddresses())

class Program:

__slots__ = '_comments', '_memory', '_globals', '_procedures'

def __init__(self, reko):

self._comments = Comments(reko)

self._memory = Memory(reko)

self._globals = Globals(reko)

self._procedures = Procedures(reko)

@property

def comments(self):

return self._comments

@property

def memory(self):

return self._memory

@property

def globals(self):

return self._globals

@property

def procedures(self):

return self._procedures

reko/src/Scripts/Python/_program.py at master · gitmesam/reko · GitHub

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