[patch][rfa] Add SYS_reconfig to libgloss/syscall.h

[Jeff Johnston]

Please put it at the end of the list as opposed to using 0.

-- Jeff J.

Dave Brolley wrote:
> Hi,
> 
> I'd like approval to commit the attached patch which adds a syscall 
> number to libgloss/syscall.h. The new syscall, SYS_reconfig, is used by 
> SID for run time (simulation time) reconfiguration of the simulator, 
> mainly for performance reasons. In particular, SID can be reconfigured 
> on the fly in order to enable performance-sensitive options only while 
> simulating code which is of particular interest. This allows less 
> interesting code in the application to be simulated at optimal 
> performance. This capability is already implemented and committed in SID.
> 
> One could also envision this being used by other simulators or perhaps 
> even on some hardware targets.
> 
> Dave
> 
> 
> ------------------------------------------------------------------------
> 
> 2007-11-05  Dave Brolley  <brolley@redhat.com>
> 
>         * syscall.h (SYS_reconfig): New macro.
> 
> 
> 
> ------------------------------------------------------------------------
> 
> Index: libgloss/syscall.h
> ===================================================================
> RCS file: /cvs/src/src/libgloss/syscall.h,v
> retrieving revision 1.3
> diff -c -p -r1.3 syscall.h
> *** libgloss/syscall.h	8 Nov 2006 19:36:56 -0000	1.3
> --- libgloss/syscall.h	5 Nov 2007 18:49:41 -0000
> ***************
> *** 38,43 ****
> --- 38,44 ----
>   #define SYS_argv	13
>   
>   /* These are extras added for one reason or another.  */
> + #define SYS_reconfig      0 /* Used for runtime reconfiguration of SID */
>   #define SYS_chdir	 14
>   #define SYS_stat	 15
>   #define SYS_chmod 	 16