Re: [PATCH] tracing: Cleanup the convoluted softirq tracepoints

From: Steven Rostedt
Date: Tue Oct 19 2010 - 18:57:00 EST


On Tue, 2010-10-19 at 15:44 -0700, H. Peter Anvin wrote:
> On 10/19/2010 03:38 PM, Jason Baron wrote:
> >
> > I'm not sure I did, the documentation says that we have nop followed by
> > a jmp:
> >
> > +The new code is a 'nopl' followed by a 'jmp'. Thus:
> > +
> > +nopl - 0f 1f 44 00 00 - 5 bytes
> > +jmp - eb 3e - 2 bytes
> >
>
> There is no excuse for needing the second jump here, obviously...

Now the trick is to tell gcc that.

-- Steve


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