On Tue May 12, 2015 at 11:01:13 +0800, watermirror wrote: > hi ,in sys_ipc_wrapper, the code first get the current thread's syscall entry > frame: > .... > Thread *curr=current_thread(); > Syscall_frame *f = curr-regs(); > ... > > > according to the Syscall_frame's implemention, it can get the Utcb by > Syscall_frame::utcb(). > > > but the following code get the Utcb in another way: > > > Utcb *utcb = curr->utcb().access(true); > > > what's the difference between those two Utcb?
Specifying the utcb via the syscall is not used currently, there's just one. Adam -- Adam a...@os.inf.tu-dresden.de Lackorzynski http://os.inf.tu-dresden.de/~adam/ _______________________________________________ l4-hackers mailing list l4-hackers@os.inf.tu-dresden.de http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers
