On 12/23/2010 01:00 AM, Yao Qi wrote:
> OK.  I have to try the second approach, which is 1) exposing displaced
> stepping state to tdep, and 2) take displaced stepping state into
> account when determining the mode.
>

After talked with Ulrich, I realize that it is *not* a good idea to 
expose displaced stepping outside of infrun, and my patch is a little 
bit too intrusive.

> 2010-12-23  Yao Qi<yao@codesourcery.com>
>
> 	* arm-tdep.c: (arm_pc_is_thumb):  Adjust MEMADDR if it is within
> 	copy area of displaced stepping.
> 	* infrun.c (struct displaced_step_inferior_state): Move to ...
> 	Expose get_displaced_stepping_state.
> 	* inferior.h: ... here.
> 	Declare get_displaced_stepping_state.

This time, instead of exposing displaced_step_inferior_state to tdep, we 
return displaced_step_closure, which is defined by each tdep, instance 
to tdep appropriately.

OK to mainline?

-- 
Yao Qi