[Xen-devel] Re: [PATCH][RFC] jump_labels/x86: Use either 5 byte or 2 byte jumps

[Steven Rostedt <rostedt@xxxxxxxxxxx>]

On Fri, 2011-10-07 at 15:21 -0400, Steven Rostedt wrote:

> > > + /*
> > > +  * This is specific to x86. The jump_table is stored in three
> > > +  * long words. The first is the location of the jmp target we
> > > +  * must update.
> > > +  */
> > > + cnt = size / sizeof(uint_t);
> > > +
> > > + for (i = 0; i < cnt; i += 3)
> > > +         if (0)make_nop((void *)ehdr, *(uint_t *)(data + i * 
> > > sizeof(uint_t)));

I just compiled and booted the 

-               if (0)make_nop((void *)ehdr, *(uint_t *)(data + i * 
sizeof(uint_t)));
+               make_nop((void *)ehdr, *(uint_t *)(data + i * sizeof(uint_t)));

version, and it still works.

Phew!

-- Steve



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