Date: Tue, 13 Aug 2013 09:50:48 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: "H. Peter Anvin" <hpa@linux.intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>, LKML <linux-kernel@vger.kernel.org>,
        gcc <gcc@gcc.gnu.org>, Linus Torvalds <torvalds@linux-foundation.org>,
        Ingo Molnar <mingo@kernel.org>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        David Daney <ddaney.cavm@gmail.com>,
        Behan Webster <behanw@converseincode.com>
Subject: Re: [RFC] gcc feature request: Moving blocks into sections
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On Mon, Aug 12, 2013 at 10:47:37AM -0700, H. Peter Anvin wrote:
> On 08/12/2013 09:09 AM, Peter Zijlstra wrote:
> >>
> >> On the majority of architectures, including x86, you cannot simply copy
> >> a piece of code elsewhere and have it still work.
> > 
> > I thought we used -fPIC which would allow just that.
> > 
> 
> Doubly wrong.  The kernel is not compiled with -fPIC, nor does -fPIC
> allow this kind of movement for code that contains intramodule
> references (that is *all* references in the kernel).  Since we really
> doesn't want to burden the kernel with a GOT and a PLT, that is life.

OK. never mind then..
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