def enter(self, options):
# syscall enter
regs = self.process.getregs()
self.syscall = PtraceSyscall(self.process, options, regs)
self.name = self.syscall.name
if (not self.ignore_callback) \
or (not self.ignore_callback(self.syscall)):
self.syscall.enter(regs)
else:
self.syscall = None
self.next_event = "exit"
return self.syscall
