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#-*- coding:utf-8 -*-
import os
import tempfile
from distutils.sysconfig import get_python_inc
from miasm2.jitter.jitcore import JitCore
from miasm2.core.utils import keydefaultdict
def gen_core(arch, attrib):
lib_dir = os.path.dirname(os.path.realpath(__file__))
txt = ""
txt += '#include "%s/queue.h"\n' % lib_dir
txt += '#include "%s/op_semantics.h"\n' % lib_dir
txt += '#include "%s/vm_mngr.h"\n' % lib_dir
txt += '#include "%s/vm_mngr_py.h"\n' % lib_dir
txt += '#include "%s/JitCore.h"\n' % lib_dir
txt += '#include "%s/arch/JitCore_%s.h"\n' % (lib_dir, arch.name)
txt += r'''
#define RAISE(errtype, msg) {PyObject* p; p = PyErr_Format( errtype, msg ); return p;}
'''
return txt
class myresolver:
def __init__(self, offset):
self.offset = offset
def ret(self):
return "return PyLong_FromUnsignedLongLong(0x%X);" % self.offset
class resolver:
def __init__(self):
self.resolvers = keydefaultdict(myresolver)
def get_resolver(self, offset):
return self.resolvers[offset]
class JitCore_Cc_Base(JitCore):
"JiT management, abstract class using a C compiler as backend"
def __init__(self, ir_arch, bs=None):
self.jitted_block_delete_cb = self.deleteCB
super(JitCore_Cc_Base, self).__init__(ir_arch, bs)
self.resolver = resolver()
self.ir_arch = ir_arch
self.states = {}
self.tempdir = os.path.join(tempfile.gettempdir(), "miasm_cache")
try:
os.mkdir(self.tempdir, 0755)
except OSError:
pass
if not os.access(self.tempdir, os.R_OK | os.W_OK):
raise RuntimeError(
'Cannot access cache directory %s ' % self.tempdir)
self.exec_wrapper = None
self.libs = None
self.include_files = None
def deleteCB(self, offset):
raise NotImplementedError()
def load(self):
lib_dir = os.path.dirname(os.path.realpath(__file__))
libs = [os.path.join(lib_dir, 'VmMngr.so'),
os.path.join(lib_dir,
'arch/JitCore_%s.so' % (self.ir_arch.arch.name))]
include_files = [os.path.dirname(__file__),
get_python_inc()]
self.include_files = include_files
self.libs = libs
def init_codegen(self, codegen):
"""
Get the code generator @codegen
@codegen: an CGen instance
"""
self.codegen = codegen
def gen_c_code(self, block):
"""
Return the C code corresponding to the @irblocks
@irblocks: list of irblocks
"""
f_declaration = 'int %s(block_id * BlockDst, JitCpu* jitcpu)' % self.FUNCNAME
out = self.codegen.gen_c(block, log_mn=self.log_mn, log_regs=self.log_regs)
out = [f_declaration + '{'] + out + ['}\n']
c_code = out
return self.gen_C_source(self.ir_arch, c_code)
@staticmethod
def gen_C_source(ir_arch, func_code):
raise NotImplementedError()
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