is it possible to check the register info change before and after one system call for one thread?

[Björn Döbel]

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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
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