def cmppages(self, emuop, traceop):
for va, bytez in self.memcache.getDirtyPages():
tbytez = self.trace.readMemory(va, len(bytez))
diffs = e_mem.memdiff(bytez, tbytez)
if diffs:
diffstr = ','.join(['0x%.8x: %d' % (va+offset, size) for offset, size in diffs])
raise Exception('LockStep: emu 0x%.8x %s | trace 0x%.8x %s | DIFFS: %s' % (emuop.va, repr(emuop), traceop.va, repr(traceop), diffstr))
self.memcache.clearDirtyPages()
def cmppages(self, emuop, traceop):
for va,bytez in self.memcache.getDirtyPages():
tbytez = self.trace.readMemory(va, len(bytez))
diffs = e_mem.memdiff(bytez, tbytez)
if diffs:
diffstr = ','.join(['0x%.8x: %d' % (va+offset,size) for offset,size in diffs ])
raise Exception('LockStep: emu 0x%.8x %s | trace 0x%.8x %s | DIFFS: %s' % (emuop.va, repr(emuop), traceop.va, repr(traceop), diffstr))
self.memcache.clearDirtyPages()
def do_memcmp(self, line):
'''
Compare memory at the given locations. Outputs a set of
differences showing bytes at their given offsets....
Usage: memcmp <addr_expr1> <addr_expr2> <size_expr>
'''
if len(line) == 0:
return self.do_help('memcmp')
argv = splitargs(line)
if len(argv) != 3:
return self.do_help('memcmp')
addr1 = self.parseExpression(argv[0])
addr2 = self.parseExpression(argv[1])
size = self.parseExpression(argv[2])
bytes1 = self.memobj.readMemory(addr1, size)
bytes2 = self.memobj.readMemory(addr2, size)
res = e_mem.memdiff(bytes1, bytes2)
if len(res) == 0:
self.vprint('No Differences!')
return
for offset, offsize in res:
diff1 = addr1 + offset
diff2 = addr2 + offset
self.canvas.addText('==== %d byte difference at offset %d\n' %
(offsize, offset))
self.canvas.addVaText("0x%.8x" % diff1, diff1)
self.canvas.addText(":")
self.canvas.addText(
binascii.hexlify(bytes1[offset:offset + offsize]))
self.canvas.addText('\n')
self.canvas.addVaText("0x%.8x" % diff2, diff2)
self.canvas.addText(":")
self.canvas.addText(
binascii.hexlify(bytes2[offset:offset + offsize]))
self.canvas.addText('\n')
def do_memcmp(self, line):
"""
Compare memory at the given locations. Outputs a set of
differences showing bytes at their given offsets....
Usage: memcmp <addr_expr1> <addr_expr2> <size_expr>
"""
if len(line) == 0:
return self.do_help("memcmp")
argv = splitargs(line)
if len(argv) != 3:
return self.do_help("memcmp")
addr1 = self.parseExpression(argv[0])
addr2 = self.parseExpression(argv[1])
size = self.parseExpression(argv[2])
bytes1 = self.memobj.readMemory(addr1, size)
bytes2 = self.memobj.readMemory(addr2, size)
res = e_mem.memdiff(bytes1, bytes2)
if len(res) == 0:
self.vprint("No Differences!")
return
for offset, offsize in res:
diff1 = addr1 + offset
diff2 = addr2 + offset
self.canvas.addText("==== %d byte difference at offset %d\n" % (offsize, offset))
self.canvas.addVaText("0x%.8x" % diff1, diff1)
self.canvas.addText(":")
self.canvas.addText(bytes1[offset : offset + offsize].encode("hex"))
self.canvas.addText("\n")
self.canvas.addVaText("0x%.8x" % diff2, diff2)
self.canvas.addText(":")
self.canvas.addText(bytes2[offset : offset + offsize].encode("hex"))
self.canvas.addText("\n")
