is it possible to check the register info change before and after one system call for one thread?
Hello: i want to know whether to know the register info changes before and after one system call for one thread. Especially, the l4_thread_ex_regs could change the pc of one thread. I want to know the status of other registers after this system call. is it possible to use jdb to get this? Thanks. Cheng Guanghui
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Guanghui, Cheng wrote:
Hello: i want to know whether to know the register info changes before and after one system call for one thread. Especially, the l4_thread_ex_regs could change the pc of one thread. I want to know the status of other registers after this system call. is it possible to use jdb to get this?
Have you already tried adding an enter_kdebug() before and after the system call and then looking at the thread's registers?
Bjoern
On Thursday 17 September 2009 07:15:55 pm Björn Döbel wrote:
thread
Except CS there is no changes about the other registers. It seems that i need to read the Fiasco source code. But it is ok. Thanks. Cheng
l4-hackers@os.inf.tu-dresden.de
-
Björn Döbel -
Guanghui, Cheng