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

[Dave Brolley <brolley at redhat dot com>]

I was afraid you might say that, but I do agree....

I'll need to do some SID rework to make this happen. I'll post again 
when that has been done.

Thanks,
Dave

Jeff Johnston wrote:

> 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